Update freetype to 8bb09b0fe4d9747bcf452a777cabed7d7ef435e2
Integrated patches from freetype2 git repository, up to hashval
8bb09b0fe4d9747bcf452a777cabed7d7ef435e2, which is post-2.5.2.
Most recent commit message from freetype git:
[truetype] Simplify logic of rendering modes.
Noteworthy patches included:
[sfnt] Fix handling of embedded bitmap strikes.
[truetype] Improve handling of buggy embedded bitmap strikes.
Add FT_FACE_FLAG_COLOR and FT_HAS_COLOR.
Change-Id: I4a22d96c9443c7a587475ca0a9c684843e144b18
diff --git a/Android.mk b/Android.mk
index e357397..2010736 100644
--- a/Android.mk
+++ b/Android.mk
@@ -26,6 +26,7 @@
src/base/ftsystem.c \
src/base/ftinit.c \
src/base/ftgasp.c \
+ src/gzip/ftgzip.c \
src/raster/raster.c \
src/sfnt/sfnt.c \
src/smooth/smooth.c \
diff --git a/include/freetype/config/ftconfig.h b/include/config/ftconfig.h
similarity index 88%
rename from include/freetype/config/ftconfig.h
rename to include/config/ftconfig.h
index 5dce30e..0770e78 100644
--- a/include/freetype/config/ftconfig.h
+++ b/include/config/ftconfig.h
@@ -27,11 +27,11 @@
/* Note however that if some specific modifications are needed, we */
/* advise you to place a modified copy in your build directory. */
/* */
- /* The build directory is usually `freetype/builds/<system>', and */
- /* contains system-specific files that are always included first when */
- /* building the library. */
+ /* The build directory is usually `builds/<system>', and contains */
+ /* system-specific files that are always included first when building */
+ /* the library. */
/* */
- /* This ANSI version should stay in `include/freetype/config'. */
+ /* This ANSI version should stay in `include/config/'. */
/* */
/*************************************************************************/
@@ -53,7 +53,7 @@
/* These macros can be toggled to suit a specific system. The current */
/* ones are defaults used to compile FreeType in an ANSI C environment */
/* (16bit compilers are also supported). Copy this file to your own */
- /* `freetype/builds/<system>' directory, and edit it to port the engine. */
+ /* `builds/<system>' directory, and edit it to port the engine. */
/* */
/*************************************************************************/
@@ -338,6 +338,7 @@
/* These must be defined `static __inline__' with GCC. */
#if defined( __CC_ARM ) || defined( __ARMCC__ ) /* RVCT */
+
#define FT_MULFIX_ASSEMBLER FT_MulFix_arm
/* documentation is in freetype.h */
@@ -367,8 +368,10 @@
#ifdef __GNUC__
-#if defined( __arm__ ) && !defined( __thumb__ ) && \
+#if defined( __arm__ ) && \
+ ( !defined( __thumb__ ) || defined( __thumb2__ ) ) && \
!( defined( __CC_ARM ) || defined( __ARMCC__ ) )
+
#define FT_MULFIX_ASSEMBLER FT_MulFix_arm
/* documentation is in freetype.h */
@@ -383,7 +386,11 @@
__asm__ __volatile__ (
"smull %1, %2, %4, %3\n\t" /* (lo=%1,hi=%2) = a*b */
"mov %0, %2, asr #31\n\t" /* %0 = (hi >> 31) */
+#ifdef __clang__
+ "add.w %0, %0, #0x8000\n\t" /* %0 += 0x8000 */
+#else
"add %0, %0, #0x8000\n\t" /* %0 += 0x8000 */
+#endif
"adds %1, %1, %0\n\t" /* %1 += %0 */
"adc %2, %2, #0\n\t" /* %2 += carry */
"mov %0, %1, lsr #16\n\t" /* %0 = %1 >> 16 */
@@ -394,9 +401,13 @@
return a;
}
-#endif /* __arm__ && !__thumb__ && !( __CC_ARM || __ARMCC__ ) */
+#endif /* __arm__ && */
+ /* ( __thumb2__ || !__thumb__ ) && */
+ /* !( __CC_ARM || __ARMCC__ ) */
+
#if defined( __i386__ )
+
#define FT_MULFIX_ASSEMBLER FT_MulFix_i386
/* documentation is in freetype.h */
@@ -465,6 +476,66 @@
#endif /* _MSC_VER */
+
+#if defined( __GNUC__ ) && defined( __x86_64__ )
+
+#define FT_MULFIX_ASSEMBLER FT_MulFix_x86_64
+
+ static __inline__ FT_Int32
+ FT_MulFix_x86_64( FT_Int32 a,
+ FT_Int32 b )
+ {
+ /* Temporarily disable the warning that C90 doesn't support */
+ /* `long long'. */
+#if ( __GNUC__ > 4 ) || ( ( __GNUC__ == 4 ) && ( __GNUC_MINOR__ >= 6 ) )
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wlong-long"
+#endif
+
+#if 1
+ /* Technically not an assembly fragment, but GCC does a really good */
+ /* job at inlining it and generating good machine code for it. */
+ long long ret, tmp;
+
+
+ ret = (long long)a * b;
+ tmp = ret >> 63;
+ ret += 0x8000 + tmp;
+
+ return (FT_Int32)( ret >> 16 );
+#else
+
+ /* For some reason, GCC 4.6 on Ubuntu 12.04 generates invalid machine */
+ /* code from the lines below. The main issue is that `wide_a' is not */
+ /* properly initialized by sign-extending `a'. Instead, the generated */
+ /* machine code assumes that the register that contains `a' on input */
+ /* can be used directly as a 64-bit value, which is wrong most of the */
+ /* time. */
+ long long wide_a = (long long)a;
+ long long wide_b = (long long)b;
+ long long result;
+
+
+ __asm__ __volatile__ (
+ "imul %2, %1\n"
+ "mov %1, %0\n"
+ "sar $63, %0\n"
+ "lea 0x8000(%1, %0), %0\n"
+ "sar $16, %0\n"
+ : "=&r"(result), "=&r"(wide_a)
+ : "r"(wide_b)
+ : "cc" );
+
+ return (FT_Int32)result;
+#endif
+
+#if ( __GNUC__ > 4 ) || ( ( __GNUC__ == 4 ) && ( __GNUC_MINOR__ >= 6 ) )
+#pragma GCC diagnostic pop
+#endif
+ }
+
+#endif /* __GNUC__ && __x86_64__ */
+
#endif /* !FT_CONFIG_OPTION_NO_ASSEMBLER */
@@ -492,6 +563,9 @@
#endif /* FT_MAKE_OPTION_SINGLE_OBJECT */
+#define FT_LOCAL_ARRAY( x ) extern const x
+#define FT_LOCAL_ARRAY_DEF( x ) const x
+
#ifndef FT_BASE
diff --git a/include/freetype/config/ftheader.h b/include/config/ftheader.h
similarity index 88%
rename from include/freetype/config/ftheader.h
rename to include/config/ftheader.h
index 8371a31..b623629 100644
--- a/include/freetype/config/ftheader.h
+++ b/include/config/ftheader.h
@@ -107,7 +107,7 @@
*
*/
#ifndef FT_CONFIG_CONFIG_H
-#define FT_CONFIG_CONFIG_H <freetype/config/ftconfig.h>
+#define FT_CONFIG_CONFIG_H <config/ftconfig.h>
#endif
@@ -122,7 +122,7 @@
*
*/
#ifndef FT_CONFIG_STANDARD_LIBRARY_H
-#define FT_CONFIG_STANDARD_LIBRARY_H <freetype/config/ftstdlib.h>
+#define FT_CONFIG_STANDARD_LIBRARY_H <config/ftstdlib.h>
#endif
@@ -137,7 +137,7 @@
*
*/
#ifndef FT_CONFIG_OPTIONS_H
-#define FT_CONFIG_OPTIONS_H <freetype/config/ftoption.h>
+#define FT_CONFIG_OPTIONS_H <config/ftoption.h>
#endif
@@ -153,7 +153,7 @@
*
*/
#ifndef FT_CONFIG_MODULES_H
-#define FT_CONFIG_MODULES_H <freetype/config/ftmodule.h>
+#define FT_CONFIG_MODULES_H <config/ftmodule.h>
#endif
/* */
@@ -170,7 +170,7 @@
* base FreeType~2 API.
*
*/
-#define FT_FREETYPE_H <freetype/freetype.h>
+#define FT_FREETYPE_H <freetype.h>
/*************************************************************************
@@ -185,7 +185,7 @@
* It is included by @FT_FREETYPE_H.
*
*/
-#define FT_ERRORS_H <freetype/fterrors.h>
+#define FT_ERRORS_H <fterrors.h>
/*************************************************************************
@@ -198,7 +198,7 @@
* list of FreeType~2 module error offsets (and messages).
*
*/
-#define FT_MODULE_ERRORS_H <freetype/ftmoderr.h>
+#define FT_MODULE_ERRORS_H <ftmoderr.h>
/*************************************************************************
@@ -214,7 +214,7 @@
* It is included by @FT_FREETYPE_H.
*
*/
-#define FT_SYSTEM_H <freetype/ftsystem.h>
+#define FT_SYSTEM_H <ftsystem.h>
/*************************************************************************
@@ -230,7 +230,7 @@
* It is included by @FT_FREETYPE_H.
*
*/
-#define FT_IMAGE_H <freetype/ftimage.h>
+#define FT_IMAGE_H <ftimage.h>
/*************************************************************************
@@ -245,7 +245,7 @@
* It is included by @FT_FREETYPE_H.
*
*/
-#define FT_TYPES_H <freetype/fttypes.h>
+#define FT_TYPES_H <fttypes.h>
/*************************************************************************
@@ -260,7 +260,7 @@
* (Most applications will never need to include this file.)
*
*/
-#define FT_LIST_H <freetype/ftlist.h>
+#define FT_LIST_H <ftlist.h>
/*************************************************************************
@@ -273,7 +273,7 @@
* scalable outline management API of FreeType~2.
*
*/
-#define FT_OUTLINE_H <freetype/ftoutln.h>
+#define FT_OUTLINE_H <ftoutln.h>
/*************************************************************************
@@ -286,7 +286,7 @@
* API which manages multiple @FT_Size objects per face.
*
*/
-#define FT_SIZES_H <freetype/ftsizes.h>
+#define FT_SIZES_H <ftsizes.h>
/*************************************************************************
@@ -299,7 +299,7 @@
* module management API of FreeType~2.
*
*/
-#define FT_MODULE_H <freetype/ftmodapi.h>
+#define FT_MODULE_H <ftmodapi.h>
/*************************************************************************
@@ -312,7 +312,7 @@
* renderer module management API of FreeType~2.
*
*/
-#define FT_RENDER_H <freetype/ftrender.h>
+#define FT_RENDER_H <ftrender.h>
/*************************************************************************
@@ -325,7 +325,7 @@
* structures and macros related to the auto-hinting module.
*
*/
-#define FT_AUTOHINTER_H <freetype/ftautoh.h>
+#define FT_AUTOHINTER_H <ftautoh.h>
/*************************************************************************
@@ -338,7 +338,7 @@
* structures and macros related to the CFF driver module.
*
*/
-#define FT_CFF_DRIVER_H <freetype/ftcffdrv.h>
+#define FT_CFF_DRIVER_H <ftcffdrv.h>
/*************************************************************************
@@ -351,7 +351,7 @@
* structures and macros related to the TrueType driver module.
*
*/
-#define FT_TRUETYPE_DRIVER_H <freetype/ftttdrv.h>
+#define FT_TRUETYPE_DRIVER_H <ftttdrv.h>
/*************************************************************************
@@ -364,7 +364,7 @@
* types and API specific to the Type~1 format.
*
*/
-#define FT_TYPE1_TABLES_H <freetype/t1tables.h>
+#define FT_TYPE1_TABLES_H <t1tables.h>
/*************************************************************************
@@ -379,7 +379,7 @@
* definitions, taken from the TrueType and OpenType specifications.
*
*/
-#define FT_TRUETYPE_IDS_H <freetype/ttnameid.h>
+#define FT_TRUETYPE_IDS_H <ttnameid.h>
/*************************************************************************
@@ -392,7 +392,7 @@
* types and API specific to the TrueType (as well as OpenType) format.
*
*/
-#define FT_TRUETYPE_TABLES_H <freetype/tttables.h>
+#define FT_TRUETYPE_TABLES_H <tttables.h>
/*************************************************************************
@@ -406,7 +406,7 @@
* SFNT-based font formats (i.e., TrueType and OpenType).
*
*/
-#define FT_TRUETYPE_TAGS_H <freetype/tttags.h>
+#define FT_TRUETYPE_TAGS_H <tttags.h>
/*************************************************************************
@@ -420,7 +420,7 @@
* face.
*
*/
-#define FT_BDF_H <freetype/ftbdf.h>
+#define FT_BDF_H <ftbdf.h>
/*************************************************************************
@@ -434,7 +434,7 @@
* face.
*
*/
-#define FT_CID_H <freetype/ftcid.h>
+#define FT_CID_H <ftcid.h>
/*************************************************************************
@@ -447,7 +447,7 @@
* definitions of an API which supports gzip-compressed files.
*
*/
-#define FT_GZIP_H <freetype/ftgzip.h>
+#define FT_GZIP_H <ftgzip.h>
/*************************************************************************
@@ -460,7 +460,7 @@
* definitions of an API which supports LZW-compressed files.
*
*/
-#define FT_LZW_H <freetype/ftlzw.h>
+#define FT_LZW_H <ftlzw.h>
/*************************************************************************
@@ -473,7 +473,7 @@
* definitions of an API which supports bzip2-compressed files.
*
*/
-#define FT_BZIP2_H <freetype/ftbzip2.h>
+#define FT_BZIP2_H <ftbzip2.h>
/*************************************************************************
@@ -486,7 +486,7 @@
* definitions of an API which supports Windows FNT files.
*
*/
-#define FT_WINFONTS_H <freetype/ftwinfnt.h>
+#define FT_WINFONTS_H <ftwinfnt.h>
/*************************************************************************
@@ -499,7 +499,7 @@
* API of the optional glyph management component.
*
*/
-#define FT_GLYPH_H <freetype/ftglyph.h>
+#define FT_GLYPH_H <ftglyph.h>
/*************************************************************************
@@ -512,7 +512,7 @@
* API of the optional bitmap conversion component.
*
*/
-#define FT_BITMAP_H <freetype/ftbitmap.h>
+#define FT_BITMAP_H <ftbitmap.h>
/*************************************************************************
@@ -525,7 +525,7 @@
* API of the optional exact bounding box computation routines.
*
*/
-#define FT_BBOX_H <freetype/ftbbox.h>
+#define FT_BBOX_H <ftbbox.h>
/*************************************************************************
@@ -538,7 +538,7 @@
* API of the optional FreeType~2 cache sub-system.
*
*/
-#define FT_CACHE_H <freetype/ftcache.h>
+#define FT_CACHE_H <ftcache.h>
/*************************************************************************
@@ -612,7 +612,7 @@
* compiled on the Mac (note that the base API still works though).
*
*/
-#define FT_MAC_H <freetype/ftmac.h>
+#define FT_MAC_H <ftmac.h>
/*************************************************************************
@@ -625,7 +625,7 @@
* optional multiple-masters management API of FreeType~2.
*
*/
-#define FT_MULTIPLE_MASTERS_H <freetype/ftmm.h>
+#define FT_MULTIPLE_MASTERS_H <ftmm.h>
/*************************************************************************
@@ -639,7 +639,7 @@
* SFNT-based font formats (i.e., TrueType and OpenType).
*
*/
-#define FT_SFNT_NAMES_H <freetype/ftsnames.h>
+#define FT_SFNT_NAMES_H <ftsnames.h>
/*************************************************************************
@@ -653,7 +653,7 @@
* GPOS, GSUB, JSTF).
*
*/
-#define FT_OPENTYPE_VALIDATE_H <freetype/ftotval.h>
+#define FT_OPENTYPE_VALIDATE_H <ftotval.h>
/*************************************************************************
@@ -667,7 +667,7 @@
* mort, morx, bsln, just, kern, opbd, trak, prop).
*
*/
-#define FT_GX_VALIDATE_H <freetype/ftgxval.h>
+#define FT_GX_VALIDATE_H <ftgxval.h>
/*************************************************************************
@@ -680,7 +680,7 @@
* FreeType~2 API which accesses PFR-specific data.
*
*/
-#define FT_PFR_H <freetype/ftpfr.h>
+#define FT_PFR_H <ftpfr.h>
/*************************************************************************
@@ -692,7 +692,7 @@
* A macro used in #include statements to name the file containing the
* FreeType~2 API which provides functions to stroke outline paths.
*/
-#define FT_STROKER_H <freetype/ftstroke.h>
+#define FT_STROKER_H <ftstroke.h>
/*************************************************************************
@@ -704,7 +704,7 @@
* A macro used in #include statements to name the file containing the
* FreeType~2 API which performs artificial obliquing and emboldening.
*/
-#define FT_SYNTHESIS_H <freetype/ftsynth.h>
+#define FT_SYNTHESIS_H <ftsynth.h>
/*************************************************************************
@@ -717,7 +717,7 @@
* FreeType~2 API which provides functions specific to the XFree86 and
* X.Org X11 servers.
*/
-#define FT_XFREE86_H <freetype/ftxf86.h>
+#define FT_XFREE86_H <ftxf86.h>
/*************************************************************************
@@ -730,7 +730,7 @@
* FreeType~2 API which performs trigonometric computations (e.g.,
* cosines and arc tangents).
*/
-#define FT_TRIGONOMETRY_H <freetype/fttrigon.h>
+#define FT_TRIGONOMETRY_H <fttrigon.h>
/*************************************************************************
@@ -742,7 +742,7 @@
* A macro used in #include statements to name the file containing the
* FreeType~2 API which performs color filtering for subpixel rendering.
*/
-#define FT_LCD_FILTER_H <freetype/ftlcdfil.h>
+#define FT_LCD_FILTER_H <ftlcdfil.h>
/*************************************************************************
@@ -754,7 +754,7 @@
* A macro used in #include statements to name the file containing the
* FreeType~2 API which performs color filtering for subpixel rendering.
*/
-#define FT_UNPATENTED_HINTING_H <freetype/ttunpat.h>
+#define FT_UNPATENTED_HINTING_H <ttunpat.h>
/*************************************************************************
@@ -766,7 +766,7 @@
* A macro used in #include statements to name the file containing the
* FreeType~2 API which performs color filtering for subpixel rendering.
*/
-#define FT_INCREMENTAL_H <freetype/ftincrem.h>
+#define FT_INCREMENTAL_H <ftincrem.h>
/*************************************************************************
@@ -778,7 +778,7 @@
* A macro used in #include statements to name the file containing the
* FreeType~2 API which returns entries from the TrueType GASP table.
*/
-#define FT_GASP_H <freetype/ftgasp.h>
+#define FT_GASP_H <ftgasp.h>
/*************************************************************************
@@ -790,38 +790,38 @@
* A macro used in #include statements to name the file containing the
* FreeType~2 API which returns individual and ranged glyph advances.
*/
-#define FT_ADVANCES_H <freetype/ftadvanc.h>
+#define FT_ADVANCES_H <ftadvanc.h>
/* */
-#define FT_ERROR_DEFINITIONS_H <freetype/fterrdef.h>
+#define FT_ERROR_DEFINITIONS_H <fterrdef.h>
/* The internals of the cache sub-system are no longer exposed. We */
/* default to FT_CACHE_H at the moment just in case, but we know of */
/* no rogue client that uses them. */
/* */
-#define FT_CACHE_MANAGER_H <freetype/ftcache.h>
-#define FT_CACHE_INTERNAL_MRU_H <freetype/ftcache.h>
-#define FT_CACHE_INTERNAL_MANAGER_H <freetype/ftcache.h>
-#define FT_CACHE_INTERNAL_CACHE_H <freetype/ftcache.h>
-#define FT_CACHE_INTERNAL_GLYPH_H <freetype/ftcache.h>
-#define FT_CACHE_INTERNAL_IMAGE_H <freetype/ftcache.h>
-#define FT_CACHE_INTERNAL_SBITS_H <freetype/ftcache.h>
+#define FT_CACHE_MANAGER_H <ftcache.h>
+#define FT_CACHE_INTERNAL_MRU_H <ftcache.h>
+#define FT_CACHE_INTERNAL_MANAGER_H <ftcache.h>
+#define FT_CACHE_INTERNAL_CACHE_H <ftcache.h>
+#define FT_CACHE_INTERNAL_GLYPH_H <ftcache.h>
+#define FT_CACHE_INTERNAL_IMAGE_H <ftcache.h>
+#define FT_CACHE_INTERNAL_SBITS_H <ftcache.h>
-#define FT_INCREMENTAL_H <freetype/ftincrem.h>
+#define FT_INCREMENTAL_H <ftincrem.h>
-#define FT_TRUETYPE_UNPATENTED_H <freetype/ttunpat.h>
+#define FT_TRUETYPE_UNPATENTED_H <ttunpat.h>
/*
- * Include internal headers definitions from <freetype/internal/...>
+ * Include internal headers definitions from <internal/...>
* only when building the library.
*/
#ifdef FT2_BUILD_LIBRARY
-#define FT_INTERNAL_INTERNAL_H <freetype/internal/internal.h>
+#define FT_INTERNAL_INTERNAL_H <internal/internal.h>
#include FT_INTERNAL_INTERNAL_H
#endif /* FT2_BUILD_LIBRARY */
diff --git a/include/freetype/config/ftmodule.h b/include/config/ftmodule.h
similarity index 100%
rename from include/freetype/config/ftmodule.h
rename to include/config/ftmodule.h
diff --git a/include/freetype/config/ftoption.h b/include/config/ftoption.h
similarity index 98%
rename from include/freetype/config/ftoption.h
rename to include/config/ftoption.h
index bc239bf..72cc060 100644
--- a/include/freetype/config/ftoption.h
+++ b/include/config/ftoption.h
@@ -38,9 +38,9 @@
/* library from a single source directory. */
/* */
/* - You can put a copy of this file in your build directory, more */
- /* precisely in `$BUILD/freetype/config/ftoption.h', where `$BUILD' */
- /* is the name of a directory that is included _before_ the FreeType */
- /* include path during compilation. */
+ /* precisely in `$BUILD/config/ftoption.h', where `$BUILD' is the */
+ /* name of a directory that is included _before_ the FreeType include */
+ /* path during compilation. */
/* */
/* The default FreeType Makefiles and Jamfiles use the build */
/* directory `builds/<system>' by default, but you can easily change */
@@ -51,7 +51,7 @@
/* locate this file during the build. For example, */
/* */
/* #define FT_CONFIG_OPTIONS_H <myftoptions.h> */
- /* #include <freetype/config/ftheader.h> */
+ /* #include <config/ftheader.h> */
/* */
/* will use `$BUILD/myftoptions.h' instead of this file for macro */
/* definitions. */
@@ -59,7 +59,7 @@
/* Note also that you can similarly pre-define the macro */
/* FT_CONFIG_MODULES_H used to locate the file listing of the modules */
/* that are statically linked to the library at compile time. By */
- /* default, this file is <freetype/config/ftmodule.h>. */
+ /* default, this file is <config/ftmodule.h>. */
/* */
/* We highly recommend using the third method whenever possible. */
/* */
@@ -528,7 +528,7 @@
/* does not contain any glyph name though. */
/* */
/* Accessing SFNT names is done through the functions declared in */
- /* `freetype/ftsnames.h'. */
+ /* `ftsnames.h'. */
/* */
#define TT_CONFIG_OPTION_SFNT_NAMES
@@ -569,7 +569,7 @@
/* Do not #undef this macro here, since the build system might */
/* define it for certain configurations only. */
/* */
-/* #define TT_CONFIG_OPTION_BYTECODE_INTERPRETER */
+#define TT_CONFIG_OPTION_BYTECODE_INTERPRETER
/*************************************************************************/
@@ -641,7 +641,7 @@
/* ... */
/* } */
/* */
-#define TT_CONFIG_OPTION_UNPATENTED_HINTING
+/* #define TT_CONFIG_OPTION_UNPATENTED_HINTING */
/*************************************************************************/
diff --git a/include/freetype/config/ftstdlib.h b/include/config/ftstdlib.h
similarity index 100%
rename from include/freetype/config/ftstdlib.h
rename to include/config/ftstdlib.h
diff --git a/include/freetype/freetype.h b/include/freetype.h
similarity index 96%
rename from include/freetype/freetype.h
rename to include/freetype.h
index 0d5680b..372319a 100644
--- a/include/freetype/freetype.h
+++ b/include/freetype.h
@@ -42,6 +42,38 @@
/*************************************************************************/
/* */
/* <Section> */
+ /* header_inclusion */
+ /* */
+ /* <Title> */
+ /* FreeType's header inclusion scheme */
+ /* */
+ /* <Abstract> */
+ /* How client applications should include FreeType header files. */
+ /* */
+ /* <Description> */
+ /* To be as flexible as possible (and for historical reasons), */
+ /* FreeType uses a very special inclusion scheme to load header */
+ /* files, for example */
+ /* */
+ /* { */
+ /* #include <ft2build.h> */
+ /* */
+ /* #include FT_FREETYPE_H */
+ /* #include FT_OUTLINE_H */
+ /* } */
+ /* */
+ /* A compiler and its preprocessor only needs an include path to find */
+ /* the file `ft2build.h'; the exact locations and names of the other */
+ /* FreeType header files are hidden by preprocessor macro names, */
+ /* loaded by `ft2build.h'. The API documentation always gives the */
+ /* header macro name needed for a particular function. */
+ /* */
+ /*************************************************************************/
+
+
+ /*************************************************************************/
+ /* */
+ /* <Section> */
/* user_allocation */
/* */
/* <Title> */
@@ -98,7 +130,10 @@
/* FT_FACE_FLAG_FIXED_WIDTH */
/* FT_FACE_FLAG_HORIZONTAL */
/* FT_FACE_FLAG_VERTICAL */
+ /* FT_FACE_FLAG_COLOR */
/* FT_FACE_FLAG_SFNT */
+ /* FT_FACE_FLAG_CID_KEYED */
+ /* FT_FACE_FLAG_TRICKY */
/* FT_FACE_FLAG_KERNING */
/* FT_FACE_FLAG_MULTIPLE_MASTERS */
/* FT_FACE_FLAG_GLYPH_NAMES */
@@ -329,12 +364,14 @@
/* It also embeds a memory manager (see @FT_Memory), as well as a */
/* scan-line converter object (see @FT_Raster). */
/* */
- /* For multi-threading applications each thread should have its own */
- /* FT_Library object. */
+ /* In multi-threaded applications, make sure that the same FT_Library */
+ /* object or any of its children doesn't get accessed in parallel. */
/* */
/* <Note> */
/* Library objects are normally created by @FT_Init_FreeType, and */
- /* destroyed with @FT_Done_FreeType. */
+ /* destroyed with @FT_Done_FreeType. If you need reference-counting */
+ /* (cf. @FT_Reference_Library), use @FT_New_Library and */
+ /* @FT_Done_Library. */
/* */
typedef struct FT_LibraryRec_ *FT_Library;
@@ -415,7 +452,8 @@
/* <Note> */
/* Each @FT_Face has an _active_ @FT_Size object that is used by */
/* functions like @FT_Load_Glyph to determine the scaling */
- /* transformation which is used to load and hint glyphs and metrics. */
+ /* transformation that in turn is used to load and hint glyphs and */
+ /* metrics. */
/* */
/* You can use @FT_Set_Char_Size, @FT_Set_Pixel_Sizes, */
/* @FT_Request_Size or even @FT_Select_Size to change the content */
@@ -550,11 +588,12 @@
/* FT_ENCODING_MS_SYMBOL :: */
/* Corresponds to the Microsoft Symbol encoding, used to encode */
/* mathematical symbols in the 32..255 character code range. For */
- /* more information, see `http://www.ceviz.net/symbol.htm'. */
+ /* more information, see */
+ /* `http://www.kostis.net/charsets/symbol.htm'. */
/* */
/* FT_ENCODING_SJIS :: */
/* Corresponds to Japanese SJIS encoding. More info at */
- /* at `http://langsupport.japanreference.com/encoding.shtml'. */
+ /* at `http://en.wikipedia.org/wiki/Shift_JIS'. */
/* See note on multi-byte encodings below. */
/* */
/* FT_ENCODING_GB2312 :: */
@@ -568,7 +607,7 @@
/* FT_ENCODING_WANSUNG :: */
/* Corresponds to the Korean encoding system known as Wansung. */
/* For more information see */
- /* `http://www.microsoft.com/typography/unicode/949.txt'. */
+ /* `http://msdn.microsoft.com/en-US/goglobal/cc305154'. */
/* */
/* FT_ENCODING_JOHAB :: */
/* The Korean standard character set (KS~C 5601-1992), which */
@@ -643,10 +682,10 @@
/* FT_ENCODING_APPLE_ROMAN). */
/* */
/* If `platform_id' is @TT_PLATFORM_MACINTOSH, use the function */
- /* @FT_Get_CMap_Language_ID to query the Mac language ID which may */
+ /* @FT_Get_CMap_Language_ID to query the Mac language ID that may */
/* be needed to be able to distinguish Apple encoding variants. See */
/* */
- /* http://www.unicode.org/Public/MAPPINGS/VENDORS/APPLE/README.TXT */
+ /* http://www.unicode.org/Public/MAPPINGS/VENDORS/APPLE/Readme.txt */
/* */
/* to get an idea how to do that. Basically, if the language ID */
/* is~0, don't use it, otherwise subtract 1 from the language ID. */
@@ -806,7 +845,7 @@
/* highest CID used in the font. */
/* */
/* family_name :: The face's family name. This is an ASCII */
- /* string, usually in English, which describes */
+ /* string, usually in English, that describes */
/* the typeface's family (like `Times New */
/* Roman', `Bodoni', `Garamond', etc). This */
/* is a least common denominator used to list */
@@ -818,7 +857,7 @@
/* PDF file). */
/* */
/* style_name :: The face's style name. This is an ASCII */
- /* string, usually in English, which describes */
+ /* string, usually in English, that describes */
/* the typeface's style (like `Italic', */
/* `Bold', `Condensed', etc). Not all font */
/* formats provide a style name, so this field */
@@ -1052,7 +1091,7 @@
/* exist make FT_Load_Glyph return successfully; in all other cases */
/* you get an `FT_Err_Invalid_Argument' error. */
/* */
- /* Note that CID-keyed fonts which are in an SFNT wrapper don't */
+ /* Note that CID-keyed fonts that are in an SFNT wrapper don't */
/* have this flag set since the glyphs are accessed in the normal */
/* way (using contiguous indices); the `CID-ness' isn't visible to */
/* the application. */
@@ -1060,7 +1099,7 @@
/* FT_FACE_FLAG_TRICKY :: */
/* Set if the font is `tricky', this is, it always needs the */
/* font format's native hinting engine to get a reasonable result. */
- /* A typical example is the Chinese font `mingli.ttf' which uses */
+ /* A typical example is the Chinese font `mingli.ttf' that uses */
/* TrueType bytecode instructions to move and scale all of its */
/* subglyphs. */
/* */
@@ -1073,6 +1112,10 @@
/* Currently, there are about a dozen TrueType fonts in the list of */
/* tricky fonts; they are hard-coded in file `ttobjs.c'. */
/* */
+ /* FT_FACE_FLAG_COLOR :: */
+ /* Set if the font has color glyph tables. To access color glyphs */
+ /* use @FT_LOAD_COLOR. */
+ /* */
#define FT_FACE_FLAG_SCALABLE ( 1L << 0 )
#define FT_FACE_FLAG_FIXED_SIZES ( 1L << 1 )
#define FT_FACE_FLAG_FIXED_WIDTH ( 1L << 2 )
@@ -1087,6 +1130,7 @@
#define FT_FACE_FLAG_HINTER ( 1L << 11 )
#define FT_FACE_FLAG_CID_KEYED ( 1L << 12 )
#define FT_FACE_FLAG_TRICKY ( 1L << 13 )
+#define FT_FACE_FLAG_COLOR ( 1L << 14 )
/*************************************************************************
@@ -1271,6 +1315,20 @@
( face->face_flags & FT_FACE_FLAG_TRICKY )
+ /*************************************************************************
+ *
+ * @macro:
+ * FT_HAS_COLOR( face )
+ *
+ * @description:
+ * A macro that returns true whenever a face object contains
+ * tables for color glyphs.
+ *
+ */
+#define FT_HAS_COLOR( face ) \
+ ( face->face_flags & FT_FACE_FLAG_COLOR )
+
+
/*************************************************************************/
/* */
/* <Const> */
@@ -1392,9 +1450,9 @@
/* <Fields> */
/* face :: Handle to the parent face object. */
/* */
- /* generic :: A typeless pointer, which is unused by the FreeType */
- /* library or any of its drivers. It can be used by */
- /* client applications to link their own data to each size */
+ /* generic :: A typeless pointer, unused by the FreeType library or */
+ /* any of its drivers. It can be used by client */
+ /* applications to link their own data to each size */
/* object. */
/* */
/* metrics :: Metrics for this size object. This field is read-only. */
@@ -1462,10 +1520,10 @@
/* listed through a direct, single-linked list */
/* using its `next' field. */
/* */
- /* generic :: A typeless pointer which is unused by the */
- /* FreeType library or any of its drivers. It */
- /* can be used by client applications to link */
- /* their own data to each glyph slot object. */
+ /* generic :: A typeless pointer unused by the FreeType */
+ /* library or any of its drivers. It can be */
+ /* used by client applications to link their own */
+ /* data to each glyph slot object. */
/* */
/* metrics :: The metrics of the last loaded glyph in the */
/* slot. The returned values depend on the last */
@@ -1492,8 +1550,8 @@
/* */
/* advance :: This shorthand is, depending on */
/* @FT_LOAD_IGNORE_TRANSFORM, the transformed */
- /* advance width for the glyph (in 26.6 */
- /* fractional pixel format). As specified with */
+ /* (hinted) advance width for the glyph, in 26.6 */
+ /* fractional pixel format. As specified with */
/* @FT_LOAD_VERTICAL_LAYOUT, it uses either the */
/* `horiAdvance' or the `vertAdvance' value of */
/* `metrics' field. */
@@ -1582,7 +1640,7 @@
/* `slot->format' is also changed to @FT_GLYPH_FORMAT_BITMAP. */
/* */
/* <Note> */
- /* Here a small pseudo code fragment which shows how to use */
+ /* Here a small pseudo code fragment that shows how to use */
/* `lsb_delta' and `rsb_delta': */
/* */
/* { */
@@ -1678,6 +1736,9 @@
/* For multi-threading applications each thread should have its own */
/* FT_Library object. */
/* */
+ /* If you need reference-counting (cf. @FT_Reference_Library), use */
+ /* @FT_New_Library and @FT_Done_Library. */
+ /* */
FT_EXPORT( FT_Error )
FT_Init_FreeType( FT_Library *alibrary );
@@ -1808,7 +1869,7 @@
/* opening a new face. */
/* */
/* <Note> */
- /* The stream type is determined by the contents of `flags' which */
+ /* The stream type is determined by the contents of `flags' that */
/* are tested in the following order by @FT_Open_Face: */
/* */
/* If the `FT_OPEN_MEMORY' bit is set, assume that this is a */
@@ -1872,6 +1933,10 @@
/* <Return> */
/* FreeType error code. 0~means success. */
/* */
+ /* <Note> */
+ /* Use @FT_Done_Face to destroy the created @FT_Face object (along */
+ /* with its slot and sizes). */
+ /* */
FT_EXPORT( FT_Error )
FT_New_Face( FT_Library library,
const char* filepathname,
@@ -1885,7 +1950,7 @@
/* FT_New_Memory_Face */
/* */
/* <Description> */
- /* This function calls @FT_Open_Face to open a font which has been */
+ /* This function calls @FT_Open_Face to open a font that has been */
/* loaded into memory. */
/* */
/* <InOut> */
@@ -1931,7 +1996,7 @@
/* library :: A handle to the library resource. */
/* */
/* <Input> */
- /* args :: A pointer to an `FT_Open_Args' structure which must */
+ /* args :: A pointer to an `FT_Open_Args' structure that must */
/* be filled by the caller. */
/* */
/* face_index :: The index of the face within the font. The first */
@@ -1947,7 +2012,7 @@
/* */
/* <Note> */
/* Unlike FreeType 1.x, this function automatically creates a glyph */
- /* slot for the face object which can be accessed directly through */
+ /* slot for the face object that can be accessed directly through */
/* `face->glyph'. */
/* */
/* FT_Open_Face can be used to quickly check whether the font */
@@ -1956,7 +2021,7 @@
/* if the font format is recognized, or non-zero otherwise; */
/* the function returns a more or less empty face handle in `*aface' */
/* (if `aface' isn't NULL). The only useful field in this special */
- /* case is `face->num_faces' which gives the number of faces within */
+ /* case is `face->num_faces' that gives the number of faces within */
/* the font file. After examination, the returned @FT_Face structure */
/* should be deallocated with a call to @FT_Done_Face. */
/* */
@@ -2014,7 +2079,7 @@
/* face :: The target face object. */
/* */
/* <Input> */
- /* parameters :: A pointer to @FT_Open_Args which must be filled by */
+ /* parameters :: A pointer to @FT_Open_Args that must be filled by */
/* the caller. */
/* */
/* <Return> */
@@ -2045,7 +2110,7 @@
/* then only destroys a face if the counter is~1, otherwise it simply */
/* decrements the counter. */
/* */
- /* This function helps in managing life-cycles of structures which */
+ /* This function helps in managing life-cycles of structures that */
/* reference @FT_Face objects. */
/* */
/* <Input> */
@@ -2352,7 +2417,7 @@
/* the details. */
/* */
/* For subsetted CID-keyed fonts, `FT_Err_Invalid_Argument' is */
- /* returned for invalid CID values (this is, for CID values which */
+ /* returned for invalid CID values (this is, for CID values that */
/* don't have a corresponding glyph in the font). See the discussion */
/* of the @FT_FACE_FLAG_CID_KEYED flag for more details. */
/* */
@@ -2626,7 +2691,7 @@
* `load_flags'. They can't be ORed.
*
* If @FT_LOAD_RENDER is also set, the glyph is rendered in the
- * corresponding mode (i.e., the mode which matches the used algorithm
+ * corresponding mode (i.e., the mode that matches the used algorithm
* best). An exeption is FT_LOAD_TARGET_MONO since it implies
* @FT_LOAD_MONOCHROME.
*
@@ -2994,7 +3059,7 @@
/* */
/* This function is not compiled within the library if the config */
/* macro `FT_CONFIG_OPTION_NO_GLYPH_NAMES' is defined in */
- /* `include/freetype/config/ftoptions.h'. */
+ /* `ftoptions.h'. */
/* */
FT_EXPORT( FT_Error )
FT_Get_Glyph_Name( FT_Face face,
@@ -3050,8 +3115,8 @@
/* */
/* Because many fonts contain more than a single cmap for Unicode */
/* encoding, this function has some special code to select the one */
- /* which covers Unicode best (`best' in the sense that a UCS-4 cmap */
- /* is preferred to a UCS-2 cmap). It is thus preferable to */
+ /* that covers Unicode best (`best' in the sense that a UCS-4 cmap is */
+ /* preferred to a UCS-2 cmap). It is thus preferable to */
/* @FT_Set_Charmap in this case. */
/* */
FT_EXPORT( FT_Error )
@@ -3405,7 +3470,7 @@
/* */
/* <Note> */
/* Use this function rather than directly reading the `fs_type' field */
- /* in the @PS_FontInfoRec structure which is only guaranteed to */
+ /* in the @PS_FontInfoRec structure, which is only guaranteed to */
/* return the correct results for Type~1 fonts. */
/* */
/* <Since> */
@@ -3585,7 +3650,7 @@
/* The character codepoint in Unicode. */
/* */
/* <Return> */
- /* A pointer to an array of variant selector code points which are */
+ /* A pointer to an array of variant selector code points that are */
/* active for the given character, or NULL if the corresponding list */
/* is empty. */
/* */
@@ -3619,7 +3684,7 @@
/* The variant selector code point in Unicode. */
/* */
/* <Return> */
- /* A list of all the code points which are specified by this selector */
+ /* A list of all the code points that are specified by this selector */
/* (both default and non-default codes are returned) or NULL if there */
/* is no valid cmap or the variant selector is invalid. */
/* */
@@ -3891,8 +3956,8 @@
*
*/
#define FREETYPE_MAJOR 2
-#define FREETYPE_MINOR 4
-#define FREETYPE_PATCH 12
+#define FREETYPE_MINOR 5
+#define FREETYPE_PATCH 2
/*************************************************************************/
diff --git a/include/freetype/ftcffdrv.h b/include/freetype/ftcffdrv.h
deleted file mode 100644
index ccbcbcc..0000000
--- a/include/freetype/ftcffdrv.h
+++ /dev/null
@@ -1,151 +0,0 @@
-/***************************************************************************/
-/* */
-/* ftcffdrv.h */
-/* */
-/* FreeType API for controlling the CFF driver (specification only). */
-/* */
-/* Copyright 2013 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#ifndef __FTCFFDRV_H__
-#define __FTCFFDRV_H__
-
-#include <ft2build.h>
-#include FT_FREETYPE_H
-
-#ifdef FREETYPE_H
-#error "freetype.h of FreeType 1 has been loaded!"
-#error "Please fix the directory search order for header files"
-#error "so that freetype.h of FreeType 2 is found first."
-#endif
-
-
-FT_BEGIN_HEADER
-
-
- /**************************************************************************
- *
- * @section:
- * cff_driver
- *
- * @title:
- * The CFF driver
- *
- * @abstract:
- * Controlling the CFF driver module.
- *
- * @description:
- * While FreeType's CFF driver doesn't expose API functions by itself,
- * it is possible to control its behaviour with @FT_Property_Set and
- * @FT_Property_Get. The following lists the available properties
- * together with the necessary macros and structures.
- *
- * The CFF driver's module name is `cff'.
- *
- */
-
-
- /**************************************************************************
- *
- * @property:
- * hinting-engine
- *
- * @description:
- * Thanks to Adobe, which contributed a new hinting (and parsing)
- * engine, an application can select between `freetype' and `adobe' if
- * compiled with CFF_CONFIG_OPTION_OLD_ENGINE. If this configuration
- * macro isn't defined, `hinting-engine' does nothing.
- *
- * The default engine is `freetype' if CFF_CONFIG_OPTION_OLD_ENGINE is
- * defined, and `adobe' otherwise.
- *
- * The following example code demonstrates how to select Adobe's hinting
- * engine (omitting the error handling).
- *
- * {
- * FT_Library library;
- * FT_Face face;
- * FT_UInt hinting_engine = FT_CFF_HINTING_ADOBE;
- *
- *
- * FT_Init_FreeType( &library );
- *
- * FT_Property_Set( library, "cff",
- * "hinting-engine", &hinting_engine );
- * }
- *
- * @note:
- * This property can be used with @FT_Property_Get also.
- *
- */
-
-
- /**************************************************************************
- *
- * @enum:
- * FT_CFF_HINTING_XXX
- *
- * @description:
- * A list of constants used for the @hinting-engine property to select
- * the hinting engine for CFF fonts.
- *
- * @values:
- * FT_CFF_HINTING_FREETYPE ::
- * Use the old FreeType hinting engine.
- *
- * FT_CFF_HINTING_ADOBE ::
- * Use the hinting engine contributed by Adobe.
- *
- */
-#define FT_CFF_HINTING_FREETYPE 0
-#define FT_CFF_HINTING_ADOBE 1
-
-
- /**************************************************************************
- *
- * @property:
- * no-stem-darkening
- *
- * @description:
- * By default, the Adobe CFF engine darkens stems at smaller sizes,
- * regardless of hinting, to enhance contrast. Setting this property,
- * stem darkening gets switched off.
- *
- * Note that stem darkening is never applied if @FT_LOAD_NO_SCALE is set.
- *
- * {
- * FT_Library library;
- * FT_Face face;
- * FT_Bool no_stem_darkening = TRUE;
- *
- *
- * FT_Init_FreeType( &library );
- *
- * FT_Property_Set( library, "cff",
- * "no-stem-darkening", &no_stem_darkening );
- * }
- *
- * @note:
- * This property can be used with @FT_Property_Get also.
- *
- */
-
-
- /* */
-
-FT_END_HEADER
-
-
-#endif /* __FTCFFDRV_H__ */
-
-
-/* END */
diff --git a/include/freetype/internal/internal.h b/include/freetype/internal/internal.h
deleted file mode 100644
index f500a65..0000000
--- a/include/freetype/internal/internal.h
+++ /dev/null
@@ -1,51 +0,0 @@
-/***************************************************************************/
-/* */
-/* internal.h */
-/* */
-/* Internal header files (specification only). */
-/* */
-/* Copyright 1996-2001, 2002, 2003, 2004 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
- /*************************************************************************/
- /* */
- /* This file is automatically included by `ft2build.h'. */
- /* Do not include it manually! */
- /* */
- /*************************************************************************/
-
-
-#define FT_INTERNAL_OBJECTS_H <freetype/internal/ftobjs.h>
-#define FT_INTERNAL_PIC_H <freetype/internal/ftpic.h>
-#define FT_INTERNAL_STREAM_H <freetype/internal/ftstream.h>
-#define FT_INTERNAL_MEMORY_H <freetype/internal/ftmemory.h>
-#define FT_INTERNAL_DEBUG_H <freetype/internal/ftdebug.h>
-#define FT_INTERNAL_CALC_H <freetype/internal/ftcalc.h>
-#define FT_INTERNAL_DRIVER_H <freetype/internal/ftdriver.h>
-#define FT_INTERNAL_TRACE_H <freetype/internal/fttrace.h>
-#define FT_INTERNAL_GLYPH_LOADER_H <freetype/internal/ftgloadr.h>
-#define FT_INTERNAL_SFNT_H <freetype/internal/sfnt.h>
-#define FT_INTERNAL_SERVICE_H <freetype/internal/ftserv.h>
-#define FT_INTERNAL_RFORK_H <freetype/internal/ftrfork.h>
-#define FT_INTERNAL_VALIDATE_H <freetype/internal/ftvalid.h>
-
-#define FT_INTERNAL_TRUETYPE_TYPES_H <freetype/internal/tttypes.h>
-#define FT_INTERNAL_TYPE1_TYPES_H <freetype/internal/t1types.h>
-
-#define FT_INTERNAL_POSTSCRIPT_AUX_H <freetype/internal/psaux.h>
-#define FT_INTERNAL_POSTSCRIPT_HINTS_H <freetype/internal/pshints.h>
-#define FT_INTERNAL_POSTSCRIPT_GLOBALS_H <freetype/internal/psglobal.h>
-
-#define FT_INTERNAL_AUTOHINT_H <freetype/internal/autohint.h>
-
-
-/* END */
diff --git a/include/freetype/internal/pcftypes.h b/include/freetype/internal/pcftypes.h
deleted file mode 100644
index 382796f..0000000
--- a/include/freetype/internal/pcftypes.h
+++ /dev/null
@@ -1,56 +0,0 @@
-/* pcftypes.h
-
- FreeType font driver for pcf fonts
-
- Copyright (C) 2000, 2001, 2002 by
- Francesco Zappa Nardelli
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.
-*/
-
-
-#ifndef __PCFTYPES_H__
-#define __PCFTYPES_H__
-
-
-#include <ft2build.h>
-#include FT_FREETYPE_H
-
-
-FT_BEGIN_HEADER
-
-
- typedef struct PCF_Public_FaceRec_
- {
- FT_FaceRec root;
- FT_StreamRec gzip_stream;
- FT_Stream gzip_source;
-
- char* charset_encoding;
- char* charset_registry;
-
- } PCF_Public_FaceRec, *PCF_Public_Face;
-
-
-FT_END_HEADER
-
-#endif /* __PCFTYPES_H__ */
-
-
-/* END */
diff --git a/include/ft2build.h b/include/ft2build.h
index 923d887..6f8eb7f 100644
--- a/include/ft2build.h
+++ b/include/ft2build.h
@@ -3,9 +3,8 @@
/* ft2build.h */
/* */
/* FreeType 2 build and setup macros. */
-/* (Generic version) */
/* */
-/* Copyright 1996-2001, 2006 by */
+/* Copyright 1996-2001, 2006, 2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -19,21 +18,25 @@
/*************************************************************************/
/* */
- /* This file corresponds to the default `ft2build.h' file for */
- /* FreeType 2. It uses the `freetype' include root. */
+ /* This is the `entry point' for FreeType header file inclusions. It is */
+ /* the only header file which should be included directly; all other */
+ /* FreeType header files should be accessed with macro names (after */
+ /* including `ft2build.h'). */
/* */
- /* Note that specific platforms might use a different configuration. */
- /* See builds/unix/ft2unix.h for an example. */
+ /* A typical example is */
+ /* */
+ /* #include <ft2build.h> */
+ /* #include FT_FREETYPE_H */
/* */
/*************************************************************************/
-#ifndef __FT2_BUILD_GENERIC_H__
-#define __FT2_BUILD_GENERIC_H__
+#ifndef __FT2BUILD_H__
+#define __FT2BUILD_H__
-#include <freetype/config/ftheader.h>
+#include <config/ftheader.h>
-#endif /* __FT2_BUILD_GENERIC_H__ */
+#endif /* __FT2BUILD_H__ */
/* END */
diff --git a/include/freetype/ftadvanc.h b/include/ftadvanc.h
similarity index 98%
rename from include/freetype/ftadvanc.h
rename to include/ftadvanc.h
index 012b74b..8f7e2fc 100644
--- a/include/freetype/ftadvanc.h
+++ b/include/ftadvanc.h
@@ -64,11 +64,11 @@
/* corresponding hinting mode or font driver doesn't allow for very */
/* quick advance computation. */
/* */
- /* Typically, glyphs which are either unscaled, unhinted, bitmapped, */
+ /* Typically, glyphs that are either unscaled, unhinted, bitmapped, */
/* or light-hinted can have their advance width computed very */
/* quickly. */
/* */
- /* Normal and bytecode hinted modes, which require loading, scaling, */
+ /* Normal and bytecode hinted modes that require loading, scaling, */
/* and hinting of the glyph outline, are extremely slow by */
/* comparison. */
/* */
diff --git a/include/freetype/ftautoh.h b/include/ftautoh.h
similarity index 97%
rename from include/freetype/ftautoh.h
rename to include/ftautoh.h
index 62ce96d..bf97b3f 100644
--- a/include/freetype/ftautoh.h
+++ b/include/ftautoh.h
@@ -4,7 +4,7 @@
/* */
/* FreeType API for controlling the auto-hinter (specification only). */
/* */
-/* Copyright 2012 by */
+/* Copyright 2012, 2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -61,6 +61,8 @@
* glyph-to-script-map
*
* @description:
+ * *Experimental* *only*
+ *
* The auto-hinter provides various script modules to hint glyphs.
* Examples of supported scripts are Latin or CJK. Before a glyph is
* auto-hinted, the Unicode character map of the font gets examined, and
@@ -77,7 +79,7 @@
* sense, see the @FT_AUTOHINTER_SCRIPT_XXX values) is stored as an
* array with `num_glyphs' elements, as found in the font's @FT_Face
* structure. The `glyph-to-script-map' property returns a pointer to
- * this array which can be modified as needed. Note that the
+ * this array, which can be modified as needed. Note that the
* modification should happen before the first glyph gets processed by
* the auto-hinter so that the global analysis of the font shapes
* actually uses the modified mapping.
@@ -113,6 +115,8 @@
* FT_AUTOHINTER_SCRIPT_XXX
*
* @description:
+ * *Experimental* *only*
+ *
* A list of constants used for the @glyph-to-script-map property to
* specify the script submodule the auto-hinter should use for hinting a
* particular glyph.
@@ -236,6 +240,8 @@
* FT_Prop_GlyphToScriptMap
*
* @description:
+ * *Experimental* *only*
+ *
* The data exchange structure for the @glyph-to-script-map property.
*
*/
@@ -253,6 +259,8 @@
* fallback-script
*
* @description:
+ * *Experimental* *only*
+ *
* If no auto-hinter script module can be assigned to a glyph, a
* fallback script gets assigned to it (see also the
* @glyph-to-script-map property). By default, this is
@@ -274,7 +282,7 @@
* This property can be used with @FT_Property_Get also.
*
* It's important to use the right timing for changing this value: The
- * creation of the glyph-to-script map which eventually uses the
+ * creation of the glyph-to-script map that eventually uses the
* fallback script value gets triggered either by setting or reading a
* face-specific property like @glyph-to-script-map, or by auto-hinting
* any glyph from that face. In particular, if you have already created
diff --git a/include/freetype/ftbbox.h b/include/ftbbox.h
similarity index 96%
rename from include/freetype/ftbbox.h
rename to include/ftbbox.h
index 9766919..8938841 100644
--- a/include/freetype/ftbbox.h
+++ b/include/ftbbox.h
@@ -4,7 +4,7 @@
/* */
/* FreeType exact bbox computation (specification). */
/* */
-/* Copyright 1996-2001, 2003, 2007, 2011 by */
+/* Copyright 1996-2001, 2003, 2007, 2011, 2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -60,7 +60,7 @@
/* <Description> */
/* Compute the exact bounding box of an outline. This is slower */
/* than computing the control box. However, it uses an advanced */
- /* algorithm which returns _very_ quickly when the two boxes */
+ /* algorithm that returns _very_ quickly when the two boxes */
/* coincide. Otherwise, the outline Bézier arcs are traversed to */
/* extract their extrema. */
/* */
@@ -78,7 +78,7 @@
/* @FT_LOAD_NO_SCALE, the resulting BBox is meaningless. To get */
/* reasonable values for the BBox it is necessary to load the glyph */
/* at a large ppem value (so that the hinting instructions can */
- /* properly shift and scale the subglyphs), then extracting the BBox */
+ /* properly shift and scale the subglyphs), then extracting the BBox, */
/* which can be eventually converted back to font units. */
/* */
FT_EXPORT( FT_Error )
diff --git a/include/freetype/ftbdf.h b/include/ftbdf.h
similarity index 100%
rename from include/freetype/ftbdf.h
rename to include/ftbdf.h
diff --git a/include/freetype/ftbitmap.h b/include/ftbitmap.h
similarity index 100%
rename from include/freetype/ftbitmap.h
rename to include/ftbitmap.h
diff --git a/include/freetype/ftgzip.h b/include/ftbzip2.h
similarity index 73%
copy from include/freetype/ftgzip.h
copy to include/ftbzip2.h
index acbc4f0..1bf81b1 100644
--- a/include/freetype/ftgzip.h
+++ b/include/ftbzip2.h
@@ -1,11 +1,11 @@
/***************************************************************************/
/* */
-/* ftgzip.h */
+/* ftbzip2.h */
/* */
-/* Gzip-compressed stream support. */
+/* Bzip2-compressed stream support. */
/* */
-/* Copyright 2002, 2003, 2004, 2006 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
+/* Copyright 2010 by */
+/* Joel Klinghed. */
/* */
/* This file is part of the FreeType project, and may only be used, */
/* modified, and distributed under the terms of the FreeType project */
@@ -16,8 +16,8 @@
/***************************************************************************/
-#ifndef __FTGZIP_H__
-#define __FTGZIP_H__
+#ifndef __FTBZIP2_H__
+#define __FTBZIP2_H__
#include <ft2build.h>
#include FT_FREETYPE_H
@@ -34,16 +34,16 @@
/*************************************************************************/
/* */
/* <Section> */
- /* gzip */
+ /* bzip2 */
/* */
/* <Title> */
- /* GZIP Streams */
+ /* BZIP2 Streams */
/* */
/* <Abstract> */
- /* Using gzip-compressed font files. */
+ /* Using bzip2-compressed font files. */
/* */
/* <Description> */
- /* This section contains the declaration of Gzip-specific functions. */
+ /* This section contains the declaration of Bzip2-specific functions. */
/* */
/*************************************************************************/
@@ -51,11 +51,11 @@
/************************************************************************
*
* @function:
- * FT_Stream_OpenGzip
+ * FT_Stream_OpenBzip2
*
* @description:
- * Open a new stream to parse gzip-compressed font files. This is
- * mainly used to support the compressed `*.pcf.gz' fonts that come
+ * Open a new stream to parse bzip2-compressed font files. This is
+ * mainly used to support the compressed `*.pcf.bz2' fonts that come
* with XFree86.
*
* @input:
@@ -78,25 +78,25 @@
* The stream implementation is very basic and resets the decompression
* process each time seeking backwards is needed within the stream.
*
- * In certain builds of the library, gzip compression recognition is
+ * In certain builds of the library, bzip2 compression recognition is
* automatically handled when calling @FT_New_Face or @FT_Open_Face.
* This means that if no font driver is capable of handling the raw
- * compressed file, the library will try to open a gzipped stream from
- * it and re-open the face with it.
+ * compressed file, the library will try to open a bzip2 compressed stream
+ * from it and re-open the face with it.
*
* This function may return `FT_Err_Unimplemented_Feature' if your build
- * of FreeType was not compiled with zlib support.
+ * of FreeType was not compiled with bzip2 support.
*/
FT_EXPORT( FT_Error )
- FT_Stream_OpenGzip( FT_Stream stream,
- FT_Stream source );
+ FT_Stream_OpenBzip2( FT_Stream stream,
+ FT_Stream source );
/* */
FT_END_HEADER
-#endif /* __FTGZIP_H__ */
+#endif /* __FTBZIP2_H__ */
/* END */
diff --git a/include/freetype/ftcache.h b/include/ftcache.h
similarity index 99%
rename from include/freetype/ftcache.h
rename to include/ftcache.h
index 4ec9587..a5d7100 100644
--- a/include/freetype/ftcache.h
+++ b/include/ftcache.h
@@ -156,7 +156,7 @@
* @note:
* Never use NULL as a valid @FTC_FaceID.
*
- * Face IDs are passed by the client to the cache manager, which calls,
+ * Face IDs are passed by the client to the cache manager that calls,
* when needed, the @FTC_Face_Requester to translate them into new
* @FT_Face objects.
*
diff --git a/include/ftcffdrv.h b/include/ftcffdrv.h
new file mode 100644
index 0000000..e4d039d
--- /dev/null
+++ b/include/ftcffdrv.h
@@ -0,0 +1,254 @@
+/***************************************************************************/
+/* */
+/* ftcffdrv.h */
+/* */
+/* FreeType API for controlling the CFF driver (specification only). */
+/* */
+/* Copyright 2013 by */
+/* David Turner, Robert Wilhelm, and Werner Lemberg. */
+/* */
+/* This file is part of the FreeType project, and may only be used, */
+/* modified, and distributed under the terms of the FreeType project */
+/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
+/* this file you indicate that you have read the license and */
+/* understand and accept it fully. */
+/* */
+/***************************************************************************/
+
+
+#ifndef __FTCFFDRV_H__
+#define __FTCFFDRV_H__
+
+#include <ft2build.h>
+#include FT_FREETYPE_H
+
+#ifdef FREETYPE_H
+#error "freetype.h of FreeType 1 has been loaded!"
+#error "Please fix the directory search order for header files"
+#error "so that freetype.h of FreeType 2 is found first."
+#endif
+
+
+FT_BEGIN_HEADER
+
+
+ /**************************************************************************
+ *
+ * @section:
+ * cff_driver
+ *
+ * @title:
+ * The CFF driver
+ *
+ * @abstract:
+ * Controlling the CFF driver module.
+ *
+ * @description:
+ * While FreeType's CFF driver doesn't expose API functions by itself,
+ * it is possible to control its behaviour with @FT_Property_Set and
+ * @FT_Property_Get. The list below gives the available properties
+ * together with the necessary macros and structures.
+ *
+ * The CFF driver's module name is `cff'.
+ *
+ * *Hinting* *and* *antialiasing* *principles* *of* *the* *new* *engine*
+ *
+ * The rasterizer is positioning horizontal features (e.g., ascender
+ * height & x-height, or crossbars) on the pixel grid and minimizing the
+ * amount of antialiasing applied to them, while placing vertical
+ * features (vertical stems) on the pixel grid without hinting, thus
+ * representing the stem position and weight accurately. Sometimes the
+ * vertical stems may be only partially black. In this context,
+ * `antialiasing' means that stems are not positioned exactly on pixel
+ * borders, causing a fuzzy appearance.
+ *
+ * There are two principles behind this approach.
+ *
+ * 1) No hinting in the horizontal direction: Unlike `superhinted'
+ * TrueType, which changes glyph widths to accommodate regular
+ * inter-glyph spacing, Adobe's approach is `faithful to the design' in
+ * representing both the glyph width and the inter-glyph spacing
+ * designed for the font. This makes the screen display as close as it
+ * can be to the result one would get with infinite resolution, while
+ * preserving what is considered the key characteristics of each glyph.
+ * Note that the distances between unhinted and grid-fitted positions at
+ * small sizes are comparable to kerning values and thus would be
+ * noticeable (and distracting) while reading if hinting were applied.
+ *
+ * One of the reasons to not hint horizontally is antialiasing for LCD
+ * screens: The pixel geometry of modern displays supplies three
+ * vertical sub-pixels as the eye moves horizontally across each visible
+ * pixel. On devices where we can be certain this characteristic is
+ * present a rasterizer can take advantage of the sub-pixels to add
+ * increments of weight. In Western writing systems this turns out to
+ * be the more critical direction anyway; the weights and spacing of
+ * vertical stems (see above) are central to Armenian, Cyrillic, Greek,
+ * and Latin type designs. Even when the rasterizer uses greyscale
+ * antialiasing instead of color (a necessary compromise when one
+ * doesn't know the screen characteristics), the unhinted vertical
+ * features preserve the design's weight and spacing much better than
+ * aliased type would.
+ *
+ * 2) Aligment in the vertical direction: Weights and spacing along the
+ * y~axis are less critical; what is much more important is the visual
+ * alignment of related features (like cap-height and x-height). The
+ * sense of alignment for these is enhanced by the sharpness of grid-fit
+ * edges, while the cruder vertical resolution (full pixels instead of
+ * 1/3 pixels) is less of a problem.
+ *
+ * On the technical side, horizontal alignment zones for ascender,
+ * x-height, and other important height values (traditionally called
+ * `blue zones') as defined in the font are positioned independently,
+ * each being rounded to the nearest pixel edge, taking care of
+ * overshoot suppression at small sizes, stem darkening, and scaling.
+ *
+ * Hstems (this is, hint values defined in the font to help align
+ * horizontal features) that fall within a blue zone are said to be
+ * `captured' and are aligned to that zone. Uncaptured stems are moved
+ * in one of four ways, top edge up or down, bottom edge up or down.
+ * Unless there are conflicting hstems, the smallest movement is taken
+ * to minimize distortion.
+ */
+
+
+ /**************************************************************************
+ *
+ * @property:
+ * hinting-engine
+ *
+ * @description:
+ * Thanks to Adobe, which contributed a new hinting (and parsing)
+ * engine, an application can select between `freetype' and `adobe' if
+ * compiled with CFF_CONFIG_OPTION_OLD_ENGINE. If this configuration
+ * macro isn't defined, `hinting-engine' does nothing.
+ *
+ * The default engine is `freetype' if CFF_CONFIG_OPTION_OLD_ENGINE is
+ * defined, and `adobe' otherwise.
+ *
+ * The following example code demonstrates how to select Adobe's hinting
+ * engine (omitting the error handling).
+ *
+ * {
+ * FT_Library library;
+ * FT_UInt hinting_engine = FT_CFF_HINTING_ADOBE;
+ *
+ *
+ * FT_Init_FreeType( &library );
+ *
+ * FT_Property_Set( library, "cff",
+ * "hinting-engine", &hinting_engine );
+ * }
+ *
+ * @note:
+ * This property can be used with @FT_Property_Get also.
+ *
+ */
+
+
+ /**************************************************************************
+ *
+ * @enum:
+ * FT_CFF_HINTING_XXX
+ *
+ * @description:
+ * A list of constants used for the @hinting-engine property to select
+ * the hinting engine for CFF fonts.
+ *
+ * @values:
+ * FT_CFF_HINTING_FREETYPE ::
+ * Use the old FreeType hinting engine.
+ *
+ * FT_CFF_HINTING_ADOBE ::
+ * Use the hinting engine contributed by Adobe.
+ *
+ */
+#define FT_CFF_HINTING_FREETYPE 0
+#define FT_CFF_HINTING_ADOBE 1
+
+
+ /**************************************************************************
+ *
+ * @property:
+ * no-stem-darkening
+ *
+ * @description:
+ * By default, the Adobe CFF engine darkens stems at smaller sizes,
+ * regardless of hinting, to enhance contrast. This feature requires
+ * a rendering system with proper gamma correction. Setting this
+ * property, stem darkening gets switched off.
+ *
+ * Note that stem darkening is never applied if @FT_LOAD_NO_SCALE is set.
+ *
+ * {
+ * FT_Library library;
+ * FT_Bool no_stem_darkening = TRUE;
+ *
+ *
+ * FT_Init_FreeType( &library );
+ *
+ * FT_Property_Set( library, "cff",
+ * "no-stem-darkening", &no_stem_darkening );
+ * }
+ *
+ * @note:
+ * This property can be used with @FT_Property_Get also.
+ *
+ */
+
+
+ /**************************************************************************
+ *
+ * @property:
+ * darkening-parameters
+ *
+ * @description:
+ * By default, the Adobe CFF engine darkens stems as follows (if the
+ * `no-stem-darkening' property isn't set):
+ *
+ * {
+ * stem width <= 0.5px: darkening amount = 0.4px
+ * stem width = 1px: darkening amount = 0.275px
+ * stem width = 1.667px: darkening amount = 0.275px
+ * stem width >= 2.333px: darkening amount = 0px
+ * }
+ *
+ * and piecewise linear in-between. Using the `darkening-parameters'
+ * property, these four control points can be changed, as the following
+ * example demonstrates.
+ *
+ * {
+ * FT_Library library;
+ * FT_Int darken_params[8] = { 500, 300, // x1, y1
+ * 1000, 200, // x2, y2
+ * 1500, 100, // x3, y3
+ * 2000, 0 }; // x4, y4
+ *
+ *
+ * FT_Init_FreeType( &library );
+ *
+ * FT_Property_Set( library, "cff",
+ * "darkening-parameters", darken_params );
+ * }
+ *
+ * The x~values give the stem width, and the y~values the darkening
+ * amount. The unit is 1000th of pixels. All coordinate values must be
+ * positive; the x~values must be monotonically increasing; the
+ * y~values must be monotonically decreasing and smaller than or
+ * equal to 500 (corresponding to half a pixel); the slope of each
+ * linear piece must be shallower than -1 (e.g., -.4).
+ *
+ * @note:
+ * This property can be used with @FT_Property_Get also.
+ *
+ */
+
+
+ /* */
+
+FT_END_HEADER
+
+
+#endif /* __FTCFFDRV_H__ */
+
+
+/* END */
diff --git a/include/freetype/ftchapters.h b/include/ftchapters.h
similarity index 97%
rename from include/freetype/ftchapters.h
rename to include/ftchapters.h
index c55670d..d333761 100644
--- a/include/freetype/ftchapters.h
+++ b/include/ftchapters.h
@@ -1,7 +1,7 @@
/***************************************************************************/
/* */
/* This file defines the structure of the FreeType reference. */
-/* It is used by the python script which generates the HTML files. */
+/* It is used by the python script that generates the HTML files. */
/* */
/***************************************************************************/
@@ -15,6 +15,7 @@
/* General Remarks */
/* */
/* <Sections> */
+/* header_inclusion */
/* user_allocation */
/* */
/***************************************************************************/
diff --git a/include/freetype/ftcid.h b/include/ftcid.h
similarity index 100%
rename from include/freetype/ftcid.h
rename to include/ftcid.h
diff --git a/include/freetype/fterrdef.h b/include/fterrdef.h
similarity index 100%
rename from include/freetype/fterrdef.h
rename to include/fterrdef.h
diff --git a/include/freetype/fterrors.h b/include/fterrors.h
similarity index 100%
rename from include/freetype/fterrors.h
rename to include/fterrors.h
diff --git a/include/freetype/ftgasp.h b/include/ftgasp.h
similarity index 100%
rename from include/freetype/ftgasp.h
rename to include/ftgasp.h
diff --git a/include/freetype/ftglyph.h b/include/ftglyph.h
similarity index 98%
rename from include/freetype/ftglyph.h
rename to include/ftglyph.h
index 31dc331..2d30ed9 100644
--- a/include/freetype/ftglyph.h
+++ b/include/ftglyph.h
@@ -4,7 +4,7 @@
/* */
/* FreeType convenience functions to handle glyphs (specification). */
/* */
-/* Copyright 1996-2003, 2006, 2008, 2009, 2011 by */
+/* Copyright 1996-2003, 2006, 2008, 2009, 2011, 2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -358,17 +358,17 @@
/* outline's points, including Bézier control points. Though it */
/* coincides with the exact bounding box for most glyphs, it can be */
/* slightly larger in some situations (like when rotating an outline */
- /* which contains Bézier outside arcs). */
+ /* that contains Bézier outside arcs). */
/* */
/* Computing the control box is very fast, while getting the bounding */
/* box can take much more time as it needs to walk over all segments */
/* and arcs in the outline. To get the latter, you can use the */
- /* `ftbbox' component which is dedicated to this single task. */
+ /* `ftbbox' component, which is dedicated to this single task. */
/* */
/* <Input> */
/* glyph :: A handle to the source glyph object. */
/* */
- /* mode :: The mode which indicates how to interpret the returned */
+ /* mode :: The mode that indicates how to interpret the returned */
/* bounding box values. */
/* */
/* <Output> */
@@ -388,7 +388,7 @@
/* @FT_LOAD_NO_SCALE, the resulting CBox is meaningless. To get */
/* reasonable values for the CBox it is necessary to load the glyph */
/* at a large ppem value (so that the hinting instructions can */
- /* properly shift and scale the subglyphs), then extracting the CBox */
+ /* properly shift and scale the subglyphs), then extracting the CBox, */
/* which can be eventually converted back to font units. */
/* */
/* Note that the maximum coordinates are exclusive, which means that */
diff --git a/include/freetype/ftgxval.h b/include/ftgxval.h
similarity index 97%
rename from include/freetype/ftgxval.h
rename to include/ftgxval.h
index 497015c..6d38e32 100644
--- a/include/freetype/ftgxval.h
+++ b/include/ftgxval.h
@@ -4,7 +4,7 @@
/* */
/* FreeType API for validating TrueTypeGX/AAT tables (specification). */
/* */
-/* Copyright 2004, 2005, 2006 by */
+/* Copyright 2004-2006, 2013 by */
/* Masatake YAMATO, Redhat K.K, */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
@@ -180,7 +180,7 @@
*
* @description:
* Validate various TrueTypeGX tables to assure that all offsets and
- * indices are valid. The idea is that a higher-level library which
+ * indices are valid. The idea is that a higher-level library that
* actually does the text layout can access those tables without
* error checking (which can be quite time consuming).
*
@@ -189,7 +189,7 @@
* A handle to the input face.
*
* validation_flags ::
- * A bit field which specifies the tables to be validated. See
+ * A bit field that specifies the tables to be validated. See
* @FT_VALIDATE_GXXXX for possible values.
*
* table_length ::
@@ -286,7 +286,7 @@
*
* @description:
* Validate classic (16-bit format) kern table to assure that the offsets
- * and indices are valid. The idea is that a higher-level library which
+ * and indices are valid. The idea is that a higher-level library that
* actually does the text layout can access those tables without error
* checking (which can be quite time consuming).
*
@@ -299,7 +299,7 @@
* A handle to the input face.
*
* validation_flags ::
- * A bit field which specifies the dialect to be validated. See
+ * A bit field that specifies the dialect to be validated. See
* @FT_VALIDATE_CKERNXXX for possible values.
*
* @output:
diff --git a/include/freetype/ftgzip.h b/include/ftgzip.h
similarity index 74%
rename from include/freetype/ftgzip.h
rename to include/ftgzip.h
index acbc4f0..78e7269 100644
--- a/include/freetype/ftgzip.h
+++ b/include/ftgzip.h
@@ -4,7 +4,7 @@
/* */
/* Gzip-compressed stream support. */
/* */
-/* Copyright 2002, 2003, 2004, 2006 by */
+/* Copyright 2002-2004, 2006, 2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -91,6 +91,53 @@
FT_Stream_OpenGzip( FT_Stream stream,
FT_Stream source );
+
+ /************************************************************************
+ *
+ * @function:
+ * FT_Gzip_Uncompress
+ *
+ * @description:
+ * Decompress a zipped input buffer into an output buffer. This function
+ * is modeled after zlib's `uncompress' function.
+ *
+ * @input:
+ * memory ::
+ * A FreeType memory handle.
+ *
+ * input ::
+ * The input buffer.
+ *
+ * input_len ::
+ * The length of the input buffer.
+ *
+ * @output:
+ * output::
+ * The output buffer.
+ *
+ * @inout:
+ * output_len ::
+ * Before calling the function, this is the the total size of the
+ * output buffer, which must be large enough to hold the entire
+ * uncompressed data (so the size of the uncompressed data must be
+ * known in advance). After calling the function, `output_len' is the
+ * size of the used data in `output'.
+ *
+ * @return:
+ * FreeType error code. 0~means success.
+ *
+ * @note:
+ * This function may return `FT_Err_Unimplemented_Feature' if your build
+ * of FreeType was not compiled with zlib support.
+ */
+ FT_EXPORT( FT_Error )
+ FT_Gzip_Uncompress( FT_Memory memory,
+ FT_Byte* output,
+ FT_ULong* output_len,
+ const FT_Byte* input,
+ FT_ULong input_len );
+
+
/* */
diff --git a/include/freetype/ftimage.h b/include/ftimage.h
similarity index 98%
rename from include/freetype/ftimage.h
rename to include/ftimage.h
index 3b826b1..ea71a78 100644
--- a/include/freetype/ftimage.h
+++ b/include/ftimage.h
@@ -555,7 +555,7 @@
/* <Input> */
/* to :: A pointer to the target point of the `move to'. */
/* */
- /* user :: A typeless pointer which is passed from the caller of the */
+ /* user :: A typeless pointer, which is passed from the caller of the */
/* decomposition function. */
/* */
/* <Return> */
@@ -582,7 +582,7 @@
/* <Input> */
/* to :: A pointer to the target point of the `line to'. */
/* */
- /* user :: A typeless pointer which is passed from the caller of the */
+ /* user :: A typeless pointer, which is passed from the caller of the */
/* decomposition function. */
/* */
/* <Return> */
@@ -613,7 +613,7 @@
/* */
/* to :: A pointer to the target end point of the conic arc. */
/* */
- /* user :: A typeless pointer which is passed from the caller of */
+ /* user :: A typeless pointer, which is passed from the caller of */
/* the decomposition function. */
/* */
/* <Return> */
@@ -645,7 +645,7 @@
/* */
/* to :: A pointer to the target end point. */
/* */
- /* user :: A typeless pointer which is passed from the caller of */
+ /* user :: A typeless pointer, which is passed from the caller of */
/* the decomposition function. */
/* */
/* <Return> */
@@ -836,8 +836,8 @@
/* a a bitmap. This section contains the public API for rasters. */
/* */
/* Note that in FreeType 2, all rasters are now encapsulated within */
- /* specific modules called `renderers'. See `freetype/ftrender.h' for */
- /* more details on renderers. */
+ /* specific modules called `renderers'. See `ftrender.h' for more */
+ /* details on renderers. */
/* */
/*************************************************************************/
@@ -891,8 +891,8 @@
/* */
/* <Note> */
/* This structure is used by the span drawing callback type named */
- /* @FT_SpanFunc which takes the y~coordinate of the span as a */
- /* a parameter. */
+ /* @FT_SpanFunc that takes the y~coordinate of the span as a */
+ /* parameter. */
/* */
/* The coverage value is always between 0 and 255. If you want less */
/* gray values, the callback function has to reduce them. */
@@ -1265,7 +1265,7 @@
/* XXX: For now, the standard raster doesn't support direct */
/* composition but this should change for the final release (see */
/* the files `demos/src/ftgrays.c' and `demos/src/ftgrays2.c' */
- /* for examples of distinct implementations which support direct */
+ /* for examples of distinct implementations that support direct */
/* composition). */
/* */
typedef int
diff --git a/include/freetype/ftincrem.h b/include/ftincrem.h
similarity index 100%
rename from include/freetype/ftincrem.h
rename to include/ftincrem.h
diff --git a/include/freetype/ftlcdfil.h b/include/ftlcdfil.h
similarity index 97%
rename from include/freetype/ftlcdfil.h
rename to include/ftlcdfil.h
index 8b253f1..39206f0 100644
--- a/include/freetype/ftlcdfil.h
+++ b/include/ftlcdfil.h
@@ -5,7 +5,7 @@
/* FreeType API for color filtering of subpixel bitmap glyphs */
/* (specification). */
/* */
-/* Copyright 2006, 2007, 2008, 2010 by */
+/* Copyright 2006-2008, 2010, 2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -45,9 +45,9 @@
*
* @description:
* The @FT_Library_SetLcdFilter API can be used to specify a low-pass
- * filter which is then applied to LCD-optimized bitmaps generated
+ * filter, which is then applied to LCD-optimized bitmaps generated
* through @FT_Render_Glyph. This is useful to reduce color fringes
- * which would occur with unfiltered rendering.
+ * that would occur with unfiltered rendering.
*
* Note that no filter is active by default, and that this function is
* *not* implemented in default builds of the library. You need to
diff --git a/include/freetype/ftlist.h b/include/ftlist.h
similarity index 96%
rename from include/freetype/ftlist.h
rename to include/ftlist.h
index bb6f7f1..241e21e 100644
--- a/include/freetype/ftlist.h
+++ b/include/ftlist.h
@@ -4,7 +4,7 @@
/* */
/* Generic list support for FreeType (specification). */
/* */
-/* Copyright 1996-2001, 2003, 2007, 2010 by */
+/* Copyright 1996-2001, 2003, 2007, 2010, 2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -173,7 +173,7 @@
/* FT_List_Iterator */
/* */
/* <Description> */
- /* An FT_List iterator function which is called during a list parse */
+ /* An FT_List iterator function that is called during a list parse */
/* by @FT_List_Iterate. */
/* */
/* <Input> */
@@ -200,7 +200,7 @@
/* <Input> */
/* list :: A handle to the list. */
/* iterator :: An iterator function, called on each node of the list. */
- /* user :: A user-supplied field which is passed as the second */
+ /* user :: A user-supplied field that is passed as the second */
/* argument to the iterator. */
/* */
/* <Return> */
@@ -218,7 +218,7 @@
/* FT_List_Destructor */
/* */
/* <Description> */
- /* An @FT_List iterator function which is called during a list */
+ /* An @FT_List iterator function that is called during a list */
/* finalization by @FT_List_Finalize to destroy all elements in a */
/* given list. */
/* */
@@ -250,9 +250,9 @@
/* destroy :: A list destructor that will be applied to each element */
/* of the list. */
/* */
- /* memory :: The current memory object which handles deallocation. */
+ /* memory :: The current memory object that handles deallocation. */
/* */
- /* user :: A user-supplied field which is passed as the last */
+ /* user :: A user-supplied field that is passed as the last */
/* argument to the destructor. */
/* */
/* <Note> */
diff --git a/include/freetype/ftlzw.h b/include/ftlzw.h
similarity index 100%
rename from include/freetype/ftlzw.h
rename to include/ftlzw.h
diff --git a/include/freetype/ftmac.h b/include/ftmac.h
similarity index 98%
rename from include/freetype/ftmac.h
rename to include/ftmac.h
index ab5bab5..42874fe 100644
--- a/include/freetype/ftmac.h
+++ b/include/ftmac.h
@@ -4,7 +4,7 @@
/* */
/* Additional Mac-specific API. */
/* */
-/* Copyright 1996-2001, 2004, 2006, 2007 by */
+/* Copyright 1996-2001, 2004, 2006, 2007, 2013 by */
/* Just van Rossum, David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -18,7 +18,7 @@
/***************************************************************************/
/* */
-/* NOTE: Include this file after <freetype/freetype.h> and after any */
+/* NOTE: Include this file after FT_FREETYPE_H and after any */
/* Mac-specific headers (because this header uses Mac types such as */
/* Handle, FSSpec, FSRef, etc.) */
/* */
@@ -168,7 +168,7 @@
/* */
/* <Description> */
/* Return a pathname of the disk file and face index for given font */
- /* name which is handled by ATS framework. */
+ /* name that is handled by ATS framework. */
/* */
/* <Input> */
/* fontName :: Mac OS name of the font in ATS framework. */
diff --git a/include/freetype/ftmm.h b/include/ftmm.h
similarity index 98%
rename from include/freetype/ftmm.h
rename to include/ftmm.h
index 3aefb9e..837975a 100644
--- a/include/freetype/ftmm.h
+++ b/include/ftmm.h
@@ -4,7 +4,7 @@
/* */
/* FreeType Multiple Master font interface (specification). */
/* */
-/* Copyright 1996-2001, 2003, 2004, 2006, 2009 by */
+/* Copyright 1996-2001, 2003, 2004, 2006, 2009, 2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -196,7 +196,7 @@
/* number of designs). */
/* */
/* num_namedstyles :: The number of named styles; only meaningful for */
- /* GX which allows certain design coordinates to */
+ /* GX that allows certain design coordinates to */
/* have a string ID (in the `name' table) */
/* associated with them. The font can tell the */
/* user that, for example, Weight=1.5 is `Bold'. */
@@ -258,8 +258,7 @@
/* */
/* <Output> */
/* amaster :: The Multiple Masters/GX var descriptor. */
- /* Allocates a data structure, which the user must free */
- /* (a single call to FT_FREE will do it). */
+ /* Allocates a data structure, which the user must free. */
/* */
/* <Return> */
/* FreeType error code. 0~means success. */
diff --git a/include/freetype/ftmodapi.h b/include/ftmodapi.h
similarity index 98%
rename from include/freetype/ftmodapi.h
rename to include/ftmodapi.h
index 8abffb5..22878f8 100644
--- a/include/freetype/ftmodapi.h
+++ b/include/ftmodapi.h
@@ -298,7 +298,7 @@
* Note that only a few modules have properties.
*
* value ::
- * A generic pointer to a variable or structure which gives the new
+ * A generic pointer to a variable or structure that gives the new
* value of the property. The exact definition of `value' is
* dependent on the property; see the `Synopsis' subsection of the
* module's documentation.
@@ -364,7 +364,7 @@
*
* @inout:
* value ::
- * A generic pointer to a variable or structure which gives the
+ * A generic pointer to a variable or structure that gives the
* value of the property. The exact definition of `value' is
* dependent on the property; see the `Synopsis' subsection of the
* module's documentation.
@@ -418,7 +418,7 @@
/* @FT_Done_Library then only destroys a library if the counter is~1, */
/* otherwise it simply decrements the counter. */
/* */
- /* This function helps in managing life-cycles of structures which */
+ /* This function helps in managing life-cycles of structures that */
/* reference @FT_Library objects. */
/* */
/* <Input> */
@@ -584,7 +584,7 @@
* The library implements a bytecode interpreter that doesn't
* support the patented operations of the TrueType virtual machine.
*
- * Its main use is to load certain Asian fonts which position and
+ * Its main use is to load certain Asian fonts that position and
* scale glyph components with bytecode instructions. It produces
* bad output for most other fonts.
*
diff --git a/include/freetype/ftmoderr.h b/include/ftmoderr.h
similarity index 100%
rename from include/freetype/ftmoderr.h
rename to include/ftmoderr.h
diff --git a/include/freetype/ftotval.h b/include/ftotval.h
similarity index 97%
rename from include/freetype/ftotval.h
rename to include/ftotval.h
index 027f2e8..bb52dc4 100644
--- a/include/freetype/ftotval.h
+++ b/include/ftotval.h
@@ -4,7 +4,7 @@
/* */
/* FreeType API for validating OpenType tables (specification). */
/* */
-/* Copyright 2004, 2005, 2006, 2007 by */
+/* Copyright 2004-2007, 2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -116,7 +116,7 @@
*
* @description:
* Validate various OpenType tables to assure that all offsets and
- * indices are valid. The idea is that a higher-level library which
+ * indices are valid. The idea is that a higher-level library that
* actually does the text layout can access those tables without
* error checking (which can be quite time consuming).
*
@@ -125,7 +125,7 @@
* A handle to the input face.
*
* validation_flags ::
- * A bit field which specifies the tables to be validated. See
+ * A bit field that specifies the tables to be validated. See
* @FT_VALIDATE_OTXXX for possible values.
*
* @output:
diff --git a/include/freetype/ftoutln.h b/include/ftoutln.h
similarity index 96%
rename from include/freetype/ftoutln.h
rename to include/ftoutln.h
index fd69f28..8c7c57d 100644
--- a/include/freetype/ftoutln.h
+++ b/include/ftoutln.h
@@ -5,7 +5,7 @@
/* Support for the FT_Outline type used to store glyph shapes of */
/* most scalable font formats (specification). */
/* */
-/* Copyright 1996-2003, 2005-2012 by */
+/* Copyright 1996-2003, 2005-2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -97,7 +97,7 @@
/* operations. */
/* */
/* <InOut> */
- /* user :: A typeless pointer which is passed to each */
+ /* user :: A typeless pointer that is passed to each */
/* emitter during the decomposition. It can be */
/* used to store the state during the */
/* decomposition. */
@@ -105,6 +105,13 @@
/* <Return> */
/* FreeType error code. 0~means success. */
/* */
+ /* <Note> */
+ /* A contour that contains a single point only is represented by a */
+ /* `move to' operation followed by `line to' to the same point. In */
+ /* most cases, it is best to filter this out before using the */
+ /* outline for stroking purposes (otherwise it would result in a */
+ /* visible dot when round caps are used). */
+ /* */
FT_EXPORT( FT_Error )
FT_Outline_Decompose( FT_Outline* outline,
const FT_Outline_Funcs* func_interface,
@@ -217,12 +224,12 @@
/* the outline's points, including Bézier control points. Though it */
/* coincides with the exact bounding box for most glyphs, it can be */
/* slightly larger in some situations (like when rotating an outline */
- /* which contains Bézier outside arcs). */
+ /* that contains Bézier outside arcs). */
/* */
/* Computing the control box is very fast, while getting the bounding */
/* box can take much more time as it needs to walk over all segments */
/* and arcs in the outline. To get the latter, you can use the */
- /* `ftbbox' component which is dedicated to this single task. */
+ /* `ftbbox' component, which is dedicated to this single task. */
/* */
/* <Input> */
/* outline :: A pointer to the source outline descriptor. */
@@ -525,9 +532,11 @@
*
* @description:
* This function analyzes a glyph outline and tries to compute its
- * fill orientation (see @FT_Orientation). This is done by computing
- * the direction of each global horizontal and/or vertical extrema
- * within the outline.
+ * fill orientation (see @FT_Orientation). This is done by integrating
+ * the total area covered by the outline. The positive integral
+ * corresponds to the clockwise orientation and @FT_ORIENTATION_POSTSCRIPT
+ * is returned. The negative integral corresponds to the counter-clockwise
+ * orientation and @FT_ORIENTATION_TRUETYPE is returned.
*
* Note that this will return @FT_ORIENTATION_TRUETYPE for empty
* outlines.
diff --git a/include/freetype/ftpfr.h b/include/ftpfr.h
similarity index 100%
rename from include/freetype/ftpfr.h
rename to include/ftpfr.h
diff --git a/include/freetype/ftrender.h b/include/ftrender.h
similarity index 100%
rename from include/freetype/ftrender.h
rename to include/ftrender.h
diff --git a/include/freetype/ftsizes.h b/include/ftsizes.h
similarity index 98%
rename from include/freetype/ftsizes.h
rename to include/ftsizes.h
index 3e548cc..4167045 100644
--- a/include/freetype/ftsizes.h
+++ b/include/ftsizes.h
@@ -4,7 +4,7 @@
/* */
/* FreeType size objects management (specification). */
/* */
-/* Copyright 1996-2001, 2003, 2004, 2006, 2009 by */
+/* Copyright 1996-2001, 2003, 2004, 2006, 2009, 2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -129,7 +129,7 @@
/* <Description> */
/* Even though it is possible to create several size objects for a */
/* given face (see @FT_New_Size for details), functions like */
- /* @FT_Load_Glyph or @FT_Load_Char only use the one which has been */
+ /* @FT_Load_Glyph or @FT_Load_Char only use the one that has been */
/* activated last to determine the `current character pixel size'. */
/* */
/* This function can be used to `activate' a previously created size */
diff --git a/include/freetype/ftsnames.h b/include/ftsnames.h
similarity index 97%
rename from include/freetype/ftsnames.h
rename to include/ftsnames.h
index 485e4e1..88af440 100644
--- a/include/freetype/ftsnames.h
+++ b/include/ftsnames.h
@@ -7,7 +7,7 @@
/* */
/* This is _not_ used to retrieve glyph names! */
/* */
-/* Copyright 1996-2001, 2002, 2003, 2006, 2009, 2010 by */
+/* Copyright 1996-2003, 2006, 2009, 2010, 2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -169,7 +169,7 @@
* A constant used as the tag of @FT_Parameter structures to make
* FT_Open_Face() ignore preferred family subfamily names in `name'
* table since OpenType version 1.4. For backwards compatibility with
- * legacy systems which has 4-face-per-family restriction.
+ * legacy systems that have a 4-face-per-family restriction.
*
*/
#define FT_PARAM_TAG_IGNORE_PREFERRED_FAMILY FT_MAKE_TAG( 'i', 'g', 'p', 'f' )
@@ -184,7 +184,7 @@
* A constant used as the tag of @FT_Parameter structures to make
* FT_Open_Face() ignore preferred subfamily names in `name' table since
* OpenType version 1.4. For backwards compatibility with legacy
- * systems which has 4-face-per-family restriction.
+ * systems that have a 4-face-per-family restriction.
*
*/
#define FT_PARAM_TAG_IGNORE_PREFERRED_SUBFAMILY FT_MAKE_TAG( 'i', 'g', 'p', 's' )
diff --git a/include/freetype/ftstroke.h b/include/ftstroke.h
similarity index 100%
rename from include/freetype/ftstroke.h
rename to include/ftstroke.h
diff --git a/include/freetype/ftsynth.h b/include/ftsynth.h
similarity index 96%
rename from include/freetype/ftsynth.h
rename to include/ftsynth.h
index 2074503..839ab5e 100644
--- a/include/freetype/ftsynth.h
+++ b/include/ftsynth.h
@@ -5,7 +5,7 @@
/* FreeType synthesizing code for emboldening and slanting */
/* (specification). */
/* */
-/* Copyright 2000-2001, 2003, 2006, 2008, 2012 by */
+/* Copyright 2000-2001, 2003, 2006, 2008, 2012, 2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -37,7 +37,7 @@
/* Main reason for not lifting the functions in this module to a */
/* `standard' API is that the used parameters for emboldening and */
/* slanting are not configurable. Consider the functions as a */
- /* code resource which should be copied into the application and */
+ /* code resource that should be copied into the application and */
/* adapted to the particular needs. */
diff --git a/include/freetype/ftsystem.h b/include/ftsystem.h
similarity index 100%
rename from include/freetype/ftsystem.h
rename to include/ftsystem.h
diff --git a/include/freetype/fttrigon.h b/include/fttrigon.h
similarity index 100%
rename from include/freetype/fttrigon.h
rename to include/fttrigon.h
diff --git a/include/freetype/ftttdrv.h b/include/ftttdrv.h
similarity index 85%
rename from include/freetype/ftttdrv.h
rename to include/ftttdrv.h
index d5d3f1c..70ad3d5 100644
--- a/include/freetype/ftttdrv.h
+++ b/include/ftttdrv.h
@@ -61,7 +61,7 @@
* interpreter-version
*
* @description:
- * Currently, two versions are available which represent the bytecode
+ * Currently, two versions are available, representing the bytecode
* interpreter with and without subpixel hinting support,
* respectively. The default is subpixel support if
* TT_CONFIG_OPTION_SUBPIXEL_HINTING is defined, and no subpixel
@@ -134,6 +134,26 @@
* FT_CONFIG_OPTION_SUBPIXEL_HINTING, selecting version~38 causes an
* `FT_Err_Unimplemented_Feature' error.
*
+ * Depending on the graphics framework, Microsoft uses different
+ * bytecode engines. As a consequence, the version numbers returned by
+ * a call to the `GETINFO[1]' bytecode instruction are more convoluted
+ * than desired.
+ *
+ * {
+ * framework Windows version result of GETINFO[1]
+ * ----------------------------------------------------
+ * GDI before XP 35
+ * GDI XP and later 37
+ * GDI+ old before Vista 37
+ * GDI+ old Vista, 7 38
+ * GDI+ after 7 40
+ * DWrite before 8 39
+ * DWrite 8 and later 40
+ * }
+ *
+ * Since FreeType doesn't provide all capabilities of DWrite ClearType,
+ * using version~38 seems justified.
+ *
*/
#define TT_INTERPRETER_VERSION_35 35
#define TT_INTERPRETER_VERSION_38 38
diff --git a/include/freetype/fttypes.h b/include/fttypes.h
similarity index 98%
rename from include/freetype/fttypes.h
rename to include/fttypes.h
index 027e59c..bd944a4 100644
--- a/include/freetype/fttypes.h
+++ b/include/fttypes.h
@@ -418,7 +418,7 @@
/* details of usage. */
/* */
/* <Input> */
- /* The address of the FreeType object which is under finalization. */
+ /* The address of the FreeType object that is under finalization. */
/* Its client data is accessed through its `generic' field. */
/* */
typedef void (*FT_Generic_Finalizer)(void* object);
@@ -466,8 +466,8 @@
/* FT_MAKE_TAG */
/* */
/* <Description> */
- /* This macro converts four-letter tags which are used to label */
- /* TrueType tables into an unsigned long to be used within FreeType. */
+ /* This macro converts four-letter tags that are used to label */
+ /* TrueType tables into an unsigned long, to be used within FreeType. */
/* */
/* <Note> */
/* The produced values *must* be 32-bit integers. Don't redefine */
diff --git a/include/freetype/ftwinfnt.h b/include/ftwinfnt.h
similarity index 97%
rename from include/freetype/ftwinfnt.h
rename to include/ftwinfnt.h
index ea33353..0b67351 100644
--- a/include/freetype/ftwinfnt.h
+++ b/include/ftwinfnt.h
@@ -58,9 +58,10 @@
* @description:
* A list of valid values for the `charset' byte in
* @FT_WinFNT_HeaderRec. Exact mapping tables for the various cpXXXX
- * encodings (except for cp1361) can be found at ftp://ftp.unicode.org
- * in the MAPPINGS/VENDORS/MICSFT/WINDOWS subdirectory. cp1361 is
- * roughly a superset of MAPPINGS/OBSOLETE/EASTASIA/KSC/JOHAB.TXT.
+ * encodings (except for cp1361) can be found at
+ * ftp://ftp.unicode.org/public in the MAPPINGS/VENDORS/MICSFT/WINDOWS
+ * subdirectory. cp1361 is roughly a superset of
+ * MAPPINGS/OBSOLETE/EASTASIA/KSC/JOHAB.TXT.
*
* @values:
* FT_WinFNT_ID_DEFAULT ::
diff --git a/include/freetype/ftxf86.h b/include/ftxf86.h
similarity index 96%
rename from include/freetype/ftxf86.h
rename to include/ftxf86.h
index 8c68afd..493cccd 100644
--- a/include/freetype/ftxf86.h
+++ b/include/ftxf86.h
@@ -4,7 +4,7 @@
/* */
/* Support functions for X11. */
/* */
-/* Copyright 2002, 2003, 2004, 2006, 2007 by */
+/* Copyright 2002-2004, 2006, 2007, 2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -62,7 +62,7 @@
/* */
/* <Description> */
/* Return a string describing the format of a given face, using values */
- /* which can be used as an X11 FONT_PROPERTY. Possible values are */
+ /* that can be used as an X11 FONT_PROPERTY. Possible values are */
/* `TrueType', `Type~1', `BDF', `PCF', `Type~42', `CID~Type~1', `CFF', */
/* `PFR', and `Windows~FNT'. */
/* */
diff --git a/include/freetype/internal/autohint.h b/include/internal/autohint.h
similarity index 100%
rename from include/freetype/internal/autohint.h
rename to include/internal/autohint.h
diff --git a/include/freetype/internal/ftcalc.h b/include/internal/ftcalc.h
similarity index 98%
rename from include/freetype/internal/ftcalc.h
rename to include/internal/ftcalc.h
index faac3a3..03bd68e 100644
--- a/include/freetype/internal/ftcalc.h
+++ b/include/internal/ftcalc.h
@@ -27,10 +27,12 @@
FT_BEGIN_HEADER
+#if 0
+
/*************************************************************************/
/* */
/* <Function> */
- /* FT_FixedSqrt */
+ /* FT_SqrtFixed */
/* */
/* <Description> */
/* Computes the square root of a 16.16 fixed-point value. */
@@ -47,6 +49,8 @@
FT_BASE( FT_Int32 )
FT_SqrtFixed( FT_Int32 x );
+#endif /* 0 */
+
/*************************************************************************/
/* */
diff --git a/include/freetype/internal/ftdebug.h b/include/internal/ftdebug.h
similarity index 99%
rename from include/freetype/internal/ftdebug.h
rename to include/internal/ftdebug.h
index 1ee120f..58a3916 100644
--- a/include/freetype/internal/ftdebug.h
+++ b/include/internal/ftdebug.h
@@ -247,7 +247,6 @@
FT_BASE( void )
ft_debug_init( void );
-
FT_END_HEADER
#endif /* __FTDEBUG_H__ */
diff --git a/include/freetype/internal/ftdriver.h b/include/internal/ftdriver.h
similarity index 100%
rename from include/freetype/internal/ftdriver.h
rename to include/internal/ftdriver.h
diff --git a/include/freetype/internal/ftgloadr.h b/include/internal/ftgloadr.h
similarity index 100%
rename from include/freetype/internal/ftgloadr.h
rename to include/internal/ftgloadr.h
diff --git a/include/freetype/internal/ftmemory.h b/include/internal/ftmemory.h
similarity index 100%
rename from include/freetype/internal/ftmemory.h
rename to include/internal/ftmemory.h
diff --git a/include/freetype/internal/ftobjs.h b/include/internal/ftobjs.h
similarity index 99%
rename from include/freetype/internal/ftobjs.h
rename to include/internal/ftobjs.h
index 8a309b8..701c850 100644
--- a/include/freetype/internal/ftobjs.h
+++ b/include/internal/ftobjs.h
@@ -363,7 +363,7 @@
#endif
FT_Bool ignore_unpatented_hinter;
- FT_UInt refcount;
+ FT_Int refcount;
} FT_Face_InternalRec;
@@ -883,7 +883,7 @@
FT_PIC_Container pic_container;
#endif
- FT_UInt refcount;
+ FT_Int refcount;
} FT_LibraryRec;
diff --git a/include/freetype/internal/ftpic.h b/include/internal/ftpic.h
similarity index 100%
rename from include/freetype/internal/ftpic.h
rename to include/internal/ftpic.h
diff --git a/include/freetype/internal/ftrfork.h b/include/internal/ftrfork.h
similarity index 100%
rename from include/freetype/internal/ftrfork.h
rename to include/internal/ftrfork.h
diff --git a/include/freetype/internal/ftserv.h b/include/internal/ftserv.h
similarity index 95%
rename from include/freetype/internal/ftserv.h
rename to include/internal/ftserv.h
index 4ac988b..1203ec8 100644
--- a/include/freetype/internal/ftserv.h
+++ b/include/internal/ftserv.h
@@ -34,14 +34,6 @@
FT_BEGIN_HEADER
-#if defined( _MSC_VER ) /* Visual C++ (and Intel C++) */
- /* We disable the warning `conditional expression is */
- /* constant' in order to compile cleanly with the maximum */
- /* level of warnings. */
-#pragma warning( push )
-#pragma warning( disable : 4127 )
-#endif /* _MSC_VER */
-
/*
* @macro:
* FT_FACE_FIND_SERVICE
@@ -742,31 +734,27 @@
* The header files containing the services.
*/
-#define FT_SERVICE_BDF_H <freetype/internal/services/svbdf.h>
-#define FT_SERVICE_CID_H <freetype/internal/services/svcid.h>
-#define FT_SERVICE_GLYPH_DICT_H <freetype/internal/services/svgldict.h>
-#define FT_SERVICE_GX_VALIDATE_H <freetype/internal/services/svgxval.h>
-#define FT_SERVICE_KERNING_H <freetype/internal/services/svkern.h>
-#define FT_SERVICE_MULTIPLE_MASTERS_H <freetype/internal/services/svmm.h>
-#define FT_SERVICE_OPENTYPE_VALIDATE_H <freetype/internal/services/svotval.h>
-#define FT_SERVICE_PFR_H <freetype/internal/services/svpfr.h>
-#define FT_SERVICE_POSTSCRIPT_CMAPS_H <freetype/internal/services/svpscmap.h>
-#define FT_SERVICE_POSTSCRIPT_INFO_H <freetype/internal/services/svpsinfo.h>
-#define FT_SERVICE_POSTSCRIPT_NAME_H <freetype/internal/services/svpostnm.h>
-#define FT_SERVICE_PROPERTIES_H <freetype/internal/services/svprop.h>
-#define FT_SERVICE_SFNT_H <freetype/internal/services/svsfnt.h>
-#define FT_SERVICE_TRUETYPE_ENGINE_H <freetype/internal/services/svtteng.h>
-#define FT_SERVICE_TT_CMAP_H <freetype/internal/services/svttcmap.h>
-#define FT_SERVICE_WINFNT_H <freetype/internal/services/svwinfnt.h>
-#define FT_SERVICE_XFREE86_NAME_H <freetype/internal/services/svxf86nm.h>
-#define FT_SERVICE_TRUETYPE_GLYF_H <freetype/internal/services/svttglyf.h>
+#define FT_SERVICE_BDF_H <internal/services/svbdf.h>
+#define FT_SERVICE_CID_H <internal/services/svcid.h>
+#define FT_SERVICE_GLYPH_DICT_H <internal/services/svgldict.h>
+#define FT_SERVICE_GX_VALIDATE_H <internal/services/svgxval.h>
+#define FT_SERVICE_KERNING_H <internal/services/svkern.h>
+#define FT_SERVICE_MULTIPLE_MASTERS_H <internal/services/svmm.h>
+#define FT_SERVICE_OPENTYPE_VALIDATE_H <internal/services/svotval.h>
+#define FT_SERVICE_PFR_H <internal/services/svpfr.h>
+#define FT_SERVICE_POSTSCRIPT_CMAPS_H <internal/services/svpscmap.h>
+#define FT_SERVICE_POSTSCRIPT_INFO_H <internal/services/svpsinfo.h>
+#define FT_SERVICE_POSTSCRIPT_NAME_H <internal/services/svpostnm.h>
+#define FT_SERVICE_PROPERTIES_H <internal/services/svprop.h>
+#define FT_SERVICE_SFNT_H <internal/services/svsfnt.h>
+#define FT_SERVICE_TRUETYPE_ENGINE_H <internal/services/svtteng.h>
+#define FT_SERVICE_TT_CMAP_H <internal/services/svttcmap.h>
+#define FT_SERVICE_WINFNT_H <internal/services/svwinfnt.h>
+#define FT_SERVICE_XFREE86_NAME_H <internal/services/svxf86nm.h>
+#define FT_SERVICE_TRUETYPE_GLYF_H <internal/services/svttglyf.h>
/* */
-#if defined( _MSC_VER )
-#pragma warning( pop )
-#endif
-
FT_END_HEADER
#endif /* __FTSERV_H__ */
diff --git a/include/freetype/internal/ftstream.h b/include/internal/ftstream.h
similarity index 100%
rename from include/freetype/internal/ftstream.h
rename to include/internal/ftstream.h
diff --git a/include/freetype/internal/fttrace.h b/include/internal/fttrace.h
similarity index 100%
rename from include/freetype/internal/fttrace.h
rename to include/internal/fttrace.h
diff --git a/include/freetype/internal/ftvalid.h b/include/internal/ftvalid.h
similarity index 100%
rename from include/freetype/internal/ftvalid.h
rename to include/internal/ftvalid.h
diff --git a/include/internal/internal.h b/include/internal/internal.h
new file mode 100644
index 0000000..e0ddb06
--- /dev/null
+++ b/include/internal/internal.h
@@ -0,0 +1,63 @@
+/***************************************************************************/
+/* */
+/* internal.h */
+/* */
+/* Internal header files (specification only). */
+/* */
+/* Copyright 1996-2004, 2013 by */
+/* David Turner, Robert Wilhelm, and Werner Lemberg. */
+/* */
+/* This file is part of the FreeType project, and may only be used, */
+/* modified, and distributed under the terms of the FreeType project */
+/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
+/* this file you indicate that you have read the license and */
+/* understand and accept it fully. */
+/* */
+/***************************************************************************/
+
+
+ /*************************************************************************/
+ /* */
+ /* This file is automatically included by `ft2build.h'. */
+ /* Do not include it manually! */
+ /* */
+ /*************************************************************************/
+
+
+#define FT_INTERNAL_OBJECTS_H <internal/ftobjs.h>
+#define FT_INTERNAL_PIC_H <internal/ftpic.h>
+#define FT_INTERNAL_STREAM_H <internal/ftstream.h>
+#define FT_INTERNAL_MEMORY_H <internal/ftmemory.h>
+#define FT_INTERNAL_DEBUG_H <internal/ftdebug.h>
+#define FT_INTERNAL_CALC_H <internal/ftcalc.h>
+#define FT_INTERNAL_DRIVER_H <internal/ftdriver.h>
+#define FT_INTERNAL_TRACE_H <internal/fttrace.h>
+#define FT_INTERNAL_GLYPH_LOADER_H <internal/ftgloadr.h>
+#define FT_INTERNAL_SFNT_H <internal/sfnt.h>
+#define FT_INTERNAL_SERVICE_H <internal/ftserv.h>
+#define FT_INTERNAL_RFORK_H <internal/ftrfork.h>
+#define FT_INTERNAL_VALIDATE_H <internal/ftvalid.h>
+
+#define FT_INTERNAL_TRUETYPE_TYPES_H <internal/tttypes.h>
+#define FT_INTERNAL_TYPE1_TYPES_H <internal/t1types.h>
+
+#define FT_INTERNAL_POSTSCRIPT_AUX_H <internal/psaux.h>
+#define FT_INTERNAL_POSTSCRIPT_HINTS_H <internal/pshints.h>
+#define FT_INTERNAL_POSTSCRIPT_GLOBALS_H <internal/psglobal.h>
+
+#define FT_INTERNAL_AUTOHINT_H <internal/autohint.h>
+
+
+#if defined( _MSC_VER ) /* Visual C++ (and Intel C++) */
+
+ /* We disable the warning `conditional expression is constant' here */
+ /* in order to compile cleanly with the maximum level of warnings. */
+ /* In particular, the warning complains about stuff like `while(0)' */
+ /* which is very useful in macro definitions. There is no benefit */
+ /* in having it enabled. */
+#pragma warning( disable : 4127 )
+
+#endif /* _MSC_VER */
+
+
+/* END */
diff --git a/include/freetype/internal/psaux.h b/include/internal/psaux.h
similarity index 100%
rename from include/freetype/internal/psaux.h
rename to include/internal/psaux.h
diff --git a/include/freetype/internal/pshints.h b/include/internal/pshints.h
similarity index 100%
rename from include/freetype/internal/pshints.h
rename to include/internal/pshints.h
diff --git a/include/freetype/internal/services/svbdf.h b/include/internal/services/svbdf.h
similarity index 100%
rename from include/freetype/internal/services/svbdf.h
rename to include/internal/services/svbdf.h
diff --git a/include/freetype/internal/services/svcid.h b/include/internal/services/svcid.h
similarity index 100%
rename from include/freetype/internal/services/svcid.h
rename to include/internal/services/svcid.h
diff --git a/include/freetype/internal/services/svgldict.h b/include/internal/services/svgldict.h
similarity index 100%
rename from include/freetype/internal/services/svgldict.h
rename to include/internal/services/svgldict.h
diff --git a/include/freetype/internal/services/svgxval.h b/include/internal/services/svgxval.h
similarity index 100%
rename from include/freetype/internal/services/svgxval.h
rename to include/internal/services/svgxval.h
diff --git a/include/freetype/internal/services/svkern.h b/include/internal/services/svkern.h
similarity index 100%
rename from include/freetype/internal/services/svkern.h
rename to include/internal/services/svkern.h
diff --git a/include/freetype/internal/services/svmm.h b/include/internal/services/svmm.h
similarity index 100%
rename from include/freetype/internal/services/svmm.h
rename to include/internal/services/svmm.h
diff --git a/include/freetype/internal/services/svotval.h b/include/internal/services/svotval.h
similarity index 100%
rename from include/freetype/internal/services/svotval.h
rename to include/internal/services/svotval.h
diff --git a/include/freetype/internal/services/svpfr.h b/include/internal/services/svpfr.h
similarity index 100%
rename from include/freetype/internal/services/svpfr.h
rename to include/internal/services/svpfr.h
diff --git a/include/freetype/internal/services/svpostnm.h b/include/internal/services/svpostnm.h
similarity index 100%
rename from include/freetype/internal/services/svpostnm.h
rename to include/internal/services/svpostnm.h
diff --git a/include/freetype/internal/services/svprop.h b/include/internal/services/svprop.h
similarity index 100%
rename from include/freetype/internal/services/svprop.h
rename to include/internal/services/svprop.h
diff --git a/include/freetype/internal/services/svpscmap.h b/include/internal/services/svpscmap.h
similarity index 100%
rename from include/freetype/internal/services/svpscmap.h
rename to include/internal/services/svpscmap.h
diff --git a/include/freetype/internal/services/svpsinfo.h b/include/internal/services/svpsinfo.h
similarity index 100%
rename from include/freetype/internal/services/svpsinfo.h
rename to include/internal/services/svpsinfo.h
diff --git a/include/freetype/internal/services/svsfnt.h b/include/internal/services/svsfnt.h
similarity index 100%
rename from include/freetype/internal/services/svsfnt.h
rename to include/internal/services/svsfnt.h
diff --git a/include/freetype/internal/services/svttcmap.h b/include/internal/services/svttcmap.h
similarity index 97%
rename from include/freetype/internal/services/svttcmap.h
rename to include/internal/services/svttcmap.h
index 83994aa..4370f4c 100644
--- a/include/freetype/internal/services/svttcmap.h
+++ b/include/internal/services/svttcmap.h
@@ -7,7 +7,7 @@
/* Copyright 2003 by */
/* Masatake YAMATO, Redhat K.K. */
/* */
-/* Copyright 2003, 2008, 2009, 2012 by */
+/* Copyright 2003, 2008, 2009, 2012, 2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -47,7 +47,7 @@
/* <Fields> */
/* language :: */
/* The language ID used in Mac fonts. Definitions of values are in */
- /* freetype/ttnameid.h. */
+ /* `ttnameid.h'. */
/* */
/* format :: */
/* The cmap format. OpenType 1.5 defines the formats 0 (byte */
diff --git a/include/freetype/internal/services/svtteng.h b/include/internal/services/svtteng.h
similarity index 100%
rename from include/freetype/internal/services/svtteng.h
rename to include/internal/services/svtteng.h
diff --git a/include/freetype/internal/services/svttglyf.h b/include/internal/services/svttglyf.h
similarity index 100%
rename from include/freetype/internal/services/svttglyf.h
rename to include/internal/services/svttglyf.h
diff --git a/include/freetype/internal/services/svwinfnt.h b/include/internal/services/svwinfnt.h
similarity index 100%
rename from include/freetype/internal/services/svwinfnt.h
rename to include/internal/services/svwinfnt.h
diff --git a/include/freetype/internal/services/svxf86nm.h b/include/internal/services/svxf86nm.h
similarity index 100%
rename from include/freetype/internal/services/svxf86nm.h
rename to include/internal/services/svxf86nm.h
diff --git a/include/freetype/internal/sfnt.h b/include/internal/sfnt.h
similarity index 100%
rename from include/freetype/internal/sfnt.h
rename to include/internal/sfnt.h
diff --git a/include/freetype/internal/t1types.h b/include/internal/t1types.h
similarity index 100%
rename from include/freetype/internal/t1types.h
rename to include/internal/t1types.h
diff --git a/include/freetype/internal/tttypes.h b/include/internal/tttypes.h
similarity index 94%
rename from include/freetype/internal/tttypes.h
rename to include/internal/tttypes.h
index 1bbfe49..ad302b8 100644
--- a/include/freetype/internal/tttypes.h
+++ b/include/internal/tttypes.h
@@ -140,6 +140,75 @@
/*************************************************************************/
/* */
/* <Struct> */
+ /* WOFF_HeaderRec */
+ /* */
+ /* <Description> */
+ /* WOFF file format header. */
+ /* */
+ /* <Fields> */
+ /* See */
+ /* */
+ /* http://www.w3.org/TR/WOFF/#WOFFHeader */
+ /* */
+ typedef struct WOFF_HeaderRec_
+ {
+ FT_ULong signature;
+ FT_ULong flavor;
+ FT_ULong length;
+ FT_UShort num_tables;
+ FT_UShort reserved;
+ FT_ULong totalSfntSize;
+ FT_UShort majorVersion;
+ FT_UShort minorVersion;
+ FT_ULong metaOffset;
+ FT_ULong metaLength;
+ FT_ULong metaOrigLength;
+ FT_ULong privOffset;
+ FT_ULong privLength;
+
+ } WOFF_HeaderRec, *WOFF_Header;
+
+
+ /*************************************************************************/
+ /* */
+ /* <Struct> */
+ /* WOFF_TableRec */
+ /* */
+ /* <Description> */
+ /* This structure describes a given table of a WOFF font. */
+ /* */
+ /* <Fields> */
+ /* Tag :: A four-bytes tag describing the table. */
+ /* */
+ /* Offset :: The offset of the table from the start of the WOFF */
+ /* font in its resource. */
+ /* */
+ /* CompLength :: Compressed table length (in bytes). */
+ /* */
+ /* OrigLength :: Unompressed table length (in bytes). */
+ /* */
+ /* CheckSum :: The table checksum. This value can be ignored. */
+ /* */
+ /* OrigOffset :: The uncompressed table file offset. This value gets */
+ /* computed while constructing the (uncompressed) SFNT */
+ /* header. It is not contained in the WOFF file. */
+ /* */
+ typedef struct WOFF_TableRec_
+ {
+ FT_ULong Tag; /* table ID */
+ FT_ULong Offset; /* table file offset */
+ FT_ULong CompLength; /* compressed table length */
+ FT_ULong OrigLength; /* uncompressed table length */
+ FT_ULong CheckSum; /* uncompressed checksum */
+
+ FT_ULong OrigOffset; /* uncompressed table file offset */
+ /* (not in the WOFF file) */
+ } WOFF_TableRec, *WOFF_Table;
+
+
+ /*************************************************************************/
+ /* */
+ /* <Struct> */
/* TT_LongMetricsRec */
/* */
/* <Description> */
@@ -353,16 +422,16 @@
/* */
typedef struct TT_SBit_MetricsRec_
{
- FT_Byte height;
- FT_Byte width;
+ FT_UShort height;
+ FT_UShort width;
- FT_Char horiBearingX;
- FT_Char horiBearingY;
- FT_Byte horiAdvance;
+ FT_Short horiBearingX;
+ FT_Short horiBearingY;
+ FT_UShort horiAdvance;
- FT_Char vertBearingX;
- FT_Char vertBearingY;
- FT_Byte vertAdvance;
+ FT_Short vertBearingX;
+ FT_Short vertBearingY;
+ FT_UShort vertAdvance;
} TT_SBit_MetricsRec, *TT_SBit_Metrics;
@@ -979,6 +1048,20 @@
(*TT_Loader_EndGlyphFunc)( TT_Loader loader );
+ typedef enum TT_SbitTableType_
+ {
+ TT_SBIT_TABLE_TYPE_NONE = 0,
+ TT_SBIT_TABLE_TYPE_EBLC, /* `EBLC' (Microsoft), */
+ /* `bloc' (Apple) */
+ TT_SBIT_TABLE_TYPE_CBLC, /* `CBLC' (Google) */
+ TT_SBIT_TABLE_TYPE_SBIX, /* `sbix' (Apple) */
+
+ /* do not remove */
+ TT_SBIT_TABLE_TYPE_MAX
+
+ } TT_SbitTableType;
+
+
/*************************************************************************/
/* */
/* TrueType Face Type */
@@ -1090,13 +1173,6 @@
/* */
/* pclt :: The `pclt' SFNT table. */
/* */
- /* num_sbit_strikes :: The number of sbit strikes, i.e., bitmap */
- /* sizes, embedded in this font. */
- /* */
- /* sbit_strikes :: An array of sbit strikes embedded in this */
- /* font. This table is optional in a */
- /* TrueType/OpenType font. */
- /* */
/* num_sbit_scales :: The number of sbit scales for this font. */
/* */
/* sbit_scales :: Array of sbit scales embedded in this */
@@ -1302,6 +1378,7 @@
FT_Byte* sbit_table;
FT_ULong sbit_table_size;
+ TT_SbitTableType sbit_table_type;
FT_UInt sbit_num_strikes;
FT_Byte* kern_table;
@@ -1402,7 +1479,6 @@
FT_Int advance;
FT_Int linear;
FT_Bool linear_def;
- FT_Bool preserve_pps;
FT_Vector pp1;
FT_Vector pp2;
diff --git a/include/freetype/t1tables.h b/include/t1tables.h
similarity index 100%
rename from include/freetype/t1tables.h
rename to include/t1tables.h
diff --git a/include/freetype/ttnameid.h b/include/ttnameid.h
similarity index 99%
rename from include/freetype/ttnameid.h
rename to include/ttnameid.h
index 173f88c..9711d1d 100644
--- a/include/freetype/ttnameid.h
+++ b/include/ttnameid.h
@@ -4,7 +4,7 @@
/* */
/* TrueType name ID definitions (specification only). */
/* */
-/* Copyright 1996-2004, 2006-2008, 2012 by */
+/* Copyright 1996-2004, 2006-2008, 2012, 2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -1208,7 +1208,7 @@
/* */
/* Here some alias #defines in order to be clearer. */
/* */
- /* These are not always #defined to stay within the 31~character limit */
+ /* These are not always #defined to stay within the 31~character limit, */
/* which some compilers have. */
/* */
/* Credits go to Dave Hoo <dhoo@flash.net> for pointing out that modern */
diff --git a/include/freetype/tttables.h b/include/tttables.h
similarity index 96%
rename from include/freetype/tttables.h
rename to include/tttables.h
index fe07117..bb49dc0 100644
--- a/include/freetype/tttables.h
+++ b/include/tttables.h
@@ -5,7 +5,7 @@
/* Basic SFNT/TrueType tables definitions and interface */
/* (specification only). */
/* */
-/* Copyright 1996-2005, 2008-2012 by */
+/* Copyright 1996-2005, 2008-2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -170,8 +170,8 @@
/* */
/* <Note> */
/* IMPORTANT: The TT_HoriHeader and TT_VertHeader structures should */
- /* be identical except for the names of their fields which */
- /* are different. */
+ /* be identical except for the names of their fields, */
+ /* which are different. */
/* */
/* This ensures that a single function in the `ttload' */
/* module is able to read both the horizontal and vertical */
@@ -296,8 +296,8 @@
/* */
/* <Note> */
/* IMPORTANT: The TT_HoriHeader and TT_VertHeader structures should */
- /* be identical except for the names of their fields which */
- /* are different. */
+ /* be identical except for the names of their fields, */
+ /* which are different. */
/* */
/* This ensures that a single function in the `ttload' */
/* module is able to read both the horizontal and vertical */
@@ -340,12 +340,11 @@
/* TT_OS2 */
/* */
/* <Description> */
- /* A structure used to model a TrueType OS/2 table. This is the long */
- /* table version. All fields comply to the TrueType specification. */
+ /* A structure used to model a TrueType OS/2 table. All fields */
+ /* comply to the OpenType specification. */
/* */
- /* Note that we now support old Mac fonts which do not include an */
- /* OS/2 table. In this case, the `version' field is always set to */
- /* 0xFFFF. */
+ /* Note that we now support old Mac fonts that do not include an OS/2 */
+ /* table. In this case, the `version' field is always set to 0xFFFF. */
/* */
typedef struct TT_OS2_
{
@@ -384,12 +383,12 @@
FT_UShort usWinAscent;
FT_UShort usWinDescent;
- /* only version 1 tables: */
+ /* only version 1 and higher: */
FT_ULong ulCodePageRange1; /* Bits 0-31 */
FT_ULong ulCodePageRange2; /* Bits 32-63 */
- /* only version 2 tables: */
+ /* only version 2 and higher: */
FT_Short sxHeight;
FT_Short sCapHeight;
@@ -397,6 +396,11 @@
FT_UShort usBreakChar;
FT_UShort usMaxContext;
+ /* only version 5 and higher: */
+
+ FT_UShort usLowerOpticalPointSize; /* in twips (1/20th points) */
+ FT_UShort usUpperOpticalPointSize; /* in twips (1/20th points) */
+
} TT_OS2;
@@ -465,7 +469,7 @@
/* TT_MaxProfile */
/* */
/* <Description> */
- /* The maximum profile is a table containing many max values which */
+ /* The maximum profile is a table containing many max values, which */
/* can be used to pre-allocate arrays. This ensures that no memory */
/* allocation occurs during a glyph load. */
/* */
@@ -672,6 +676,12 @@
* error = FT_Load_Sfnt_Table( face, tag, 0, buffer, &length );
* if ( error ) { ... could not load table ... }
* }
+ *
+ * Note that structures like @TT_Header or @TT_OS2 can't be used with
+ * this function; they are limited to @FT_Get_Sfnt_Table. Reason is that
+ * those structures depend on the processor architecture, with varying
+ * size (e.g. 32bit vs. 64bit) or order (big endian vs. little endian).
+ *
*/
FT_EXPORT( FT_Error )
FT_Load_Sfnt_Table( FT_Face face,
@@ -730,7 +740,7 @@
/* */
/* <Description> */
/* Return TrueType/sfnt specific cmap language ID. Definitions of */
- /* language ID values are in `freetype/ttnameid.h'. */
+ /* language ID values are in `ttnameid.h'. */
/* */
/* <Input> */
/* charmap :: */
diff --git a/include/freetype/tttags.h b/include/tttags.h
similarity index 97%
rename from include/freetype/tttags.h
rename to include/tttags.h
index be8c524..d59aa19 100644
--- a/include/freetype/tttags.h
+++ b/include/tttags.h
@@ -88,6 +88,7 @@
#define TTAG_post FT_MAKE_TAG( 'p', 'o', 's', 't' )
#define TTAG_prep FT_MAKE_TAG( 'p', 'r', 'e', 'p' )
#define TTAG_prop FT_MAKE_TAG( 'p', 'r', 'o', 'p' )
+#define TTAG_sbix FT_MAKE_TAG( 's', 'b', 'i', 'x' )
#define TTAG_sfnt FT_MAKE_TAG( 's', 'f', 'n', 't' )
#define TTAG_SING FT_MAKE_TAG( 'S', 'I', 'N', 'G' )
#define TTAG_trak FT_MAKE_TAG( 't', 'r', 'a', 'k' )
@@ -99,6 +100,7 @@
#define TTAG_VDMX FT_MAKE_TAG( 'V', 'D', 'M', 'X' )
#define TTAG_vhea FT_MAKE_TAG( 'v', 'h', 'e', 'a' )
#define TTAG_vmtx FT_MAKE_TAG( 'v', 'm', 't', 'x' )
+#define TTAG_wOFF FT_MAKE_TAG( 'w', 'O', 'F', 'F' )
FT_END_HEADER
diff --git a/include/freetype/ttunpat.h b/include/ttunpat.h
similarity index 100%
rename from include/freetype/ttunpat.h
rename to include/ttunpat.h
diff --git a/src/autofit/afblue.c b/src/autofit/afblue.c
new file mode 100644
index 0000000..22ef6d5
--- /dev/null
+++ b/src/autofit/afblue.c
@@ -0,0 +1,166 @@
+/* This file has been generated by the Perl script `afblue.pl', */
+/* using data from file `afblue.dat'. */
+
+/***************************************************************************/
+/* */
+/* afblue.c */
+/* */
+/* Auto-fitter data for blue strings (body). */
+/* */
+/* Copyright 2013 by */
+/* David Turner, Robert Wilhelm, and Werner Lemberg. */
+/* */
+/* This file is part of the FreeType project, and may only be used, */
+/* modified, and distributed under the terms of the FreeType project */
+/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
+/* this file you indicate that you have read the license and */
+/* understand and accept it fully. */
+/* */
+/***************************************************************************/
+
+
+#include "aftypes.h"
+
+
+ FT_LOCAL_ARRAY_DEF( char )
+ af_blue_strings[] =
+ {
+ /* */
+ 'T', 'H', 'E', 'Z', 'O', 'C', 'Q', 'S', /* THEZOCQS */
+ '\0',
+ 'H', 'E', 'Z', 'L', 'O', 'C', 'U', 'S', /* HEZLOCUS */
+ '\0',
+ 'f', 'i', 'j', 'k', 'd', 'b', 'h', /* fijkdbh */
+ '\0',
+ 'x', 'z', 'r', 'o', 'e', 's', 'c', /* xzroesc */
+ '\0',
+ 'p', 'q', 'g', 'j', 'y', /* pqgjy */
+ '\0',
+ '\xCE', '\x93', '\xCE', '\x92', '\xCE', '\x95', '\xCE', '\x96', '\xCE', '\x98', '\xCE', '\x9F', '\xCE', '\xA9', /* ΓΒΕΖΘΟΩ */
+ '\0',
+ '\xCE', '\x92', '\xCE', '\x94', '\xCE', '\x96', '\xCE', '\x9E', '\xCE', '\x98', '\xCE', '\x9F', /* ΒΔΖΞΘΟ */
+ '\0',
+ '\xCE', '\xB2', '\xCE', '\xB8', '\xCE', '\xB4', '\xCE', '\xB6', '\xCE', '\xBB', '\xCE', '\xBE', /* βθδζλξ */
+ '\0',
+ '\xCE', '\xB1', '\xCE', '\xB5', '\xCE', '\xB9', '\xCE', '\xBF', '\xCF', '\x80', '\xCF', '\x83', '\xCF', '\x84', '\xCF', '\x89', /* αειοπστω */
+ '\0',
+ '\xCE', '\xB2', '\xCE', '\xB3', '\xCE', '\xB7', '\xCE', '\xBC', '\xCF', '\x81', '\xCF', '\x86', '\xCF', '\x87', '\xCF', '\x88', /* βγημρφχψ */
+ '\0',
+ '\xD0', '\x91', '\xD0', '\x92', '\xD0', '\x95', '\xD0', '\x9F', '\xD0', '\x97', '\xD0', '\x9E', '\xD0', '\xA1', '\xD0', '\xAD', /* БВЕПЗОСЭ */
+ '\0',
+ '\xD0', '\x91', '\xD0', '\x92', '\xD0', '\x95', '\xD0', '\xA8', '\xD0', '\x97', '\xD0', '\x9E', '\xD0', '\xA1', '\xD0', '\xAD', /* БВЕШЗОСЭ */
+ '\0',
+ '\xD1', '\x85', '\xD0', '\xBF', '\xD0', '\xBD', '\xD1', '\x88', '\xD0', '\xB5', '\xD0', '\xB7', '\xD0', '\xBE', '\xD1', '\x81', /* хпншезос */
+ '\0',
+ '\xD1', '\x80', '\xD1', '\x83', '\xD1', '\x84', /* руф */
+ '\0',
+ '\xD7', '\x91', '\xD7', '\x93', '\xD7', '\x94', '\xD7', '\x97', '\xD7', '\x9A', '\xD7', '\x9B', '\xD7', '\x9D', '\xD7', '\xA1', /* בדהחךכםס */
+ '\0',
+ '\xD7', '\x91', '\xD7', '\x98', '\xD7', '\x9B', '\xD7', '\x9D', '\xD7', '\xA1', '\xD7', '\xA6', /* בטכםסצ */
+ '\0',
+ '\xD7', '\xA7', '\xD7', '\x9A', '\xD7', '\x9F', '\xD7', '\xA3', '\xD7', '\xA5', /* קךןףץ */
+#ifdef AF_CONFIG_OPTION_CJK
+ '\0',
+ '\xE4', '\xBB', '\x96', '\xE4', '\xBB', '\xAC', '\xE4', '\xBD', '\xA0', '\xE4', '\xBE', '\x86', '\xE5', '\x80', '\x91', '\xE5', '\x88', '\xB0', '\xE5', '\x92', '\x8C', '\xE5', '\x9C', '\xB0', /* 他们你來們到和地 */
+ '\xE5', '\xAF', '\xB9', '\xE5', '\xB0', '\x8D', '\xE5', '\xB0', '\xB1', '\xE5', '\xB8', '\xAD', '\xE6', '\x88', '\x91', '\xE6', '\x97', '\xB6', '\xE6', '\x99', '\x82', '\xE6', '\x9C', '\x83', /* 对對就席我时時會 */
+ '\xE6', '\x9D', '\xA5', '\xE7', '\x82', '\xBA', '\xE8', '\x83', '\xBD', '\xE8', '\x88', '\xB0', '\xE8', '\xAA', '\xAA', '\xE8', '\xAF', '\xB4', '\xE8', '\xBF', '\x99', '\xE9', '\x80', '\x99', /* 来為能舰說说这這 */
+ '\xE9', '\xBD', '\x8A', /* 齊 */
+ '\0',
+ '\xE5', '\x86', '\x9B', '\xE5', '\x90', '\x8C', '\xE5', '\xB7', '\xB2', '\xE6', '\x84', '\xBF', '\xE6', '\x97', '\xA2', '\xE6', '\x98', '\x9F', '\xE6', '\x98', '\xAF', '\xE6', '\x99', '\xAF', /* 军同已愿既星是景 */
+ '\xE6', '\xB0', '\x91', '\xE7', '\x85', '\xA7', '\xE7', '\x8E', '\xB0', '\xE7', '\x8F', '\xBE', '\xE7', '\x90', '\x86', '\xE7', '\x94', '\xA8', '\xE7', '\xBD', '\xAE', '\xE8', '\xA6', '\x81', /* 民照现現理用置要 */
+ '\xE8', '\xBB', '\x8D', '\xE9', '\x82', '\xA3', '\xE9', '\x85', '\x8D', '\xE9', '\x87', '\x8C', '\xE9', '\x96', '\x8B', '\xE9', '\x9B', '\xB7', '\xE9', '\x9C', '\xB2', '\xE9', '\x9D', '\xA2', /* 軍那配里開雷露面 */
+ '\xE9', '\xA1', '\xBE', /* 顾 */
+ '\0',
+ '\xE4', '\xB8', '\xAA', '\xE4', '\xB8', '\xBA', '\xE4', '\xBA', '\xBA', '\xE4', '\xBB', '\x96', '\xE4', '\xBB', '\xA5', '\xE4', '\xBB', '\xAC', '\xE4', '\xBD', '\xA0', '\xE4', '\xBE', '\x86', /* 个为人他以们你來 */
+ '\xE5', '\x80', '\x8B', '\xE5', '\x80', '\x91', '\xE5', '\x88', '\xB0', '\xE5', '\x92', '\x8C', '\xE5', '\xA4', '\xA7', '\xE5', '\xAF', '\xB9', '\xE5', '\xB0', '\x8D', '\xE5', '\xB0', '\xB1', /* 個們到和大对對就 */
+ '\xE6', '\x88', '\x91', '\xE6', '\x97', '\xB6', '\xE6', '\x99', '\x82', '\xE6', '\x9C', '\x89', '\xE6', '\x9D', '\xA5', '\xE7', '\x82', '\xBA', '\xE8', '\xA6', '\x81', '\xE8', '\xAA', '\xAA', /* 我时時有来為要說 */
+ '\xE8', '\xAF', '\xB4', /* 说 */
+ '\0',
+ '\xE4', '\xB8', '\xBB', '\xE4', '\xBA', '\x9B', '\xE5', '\x9B', '\xA0', '\xE5', '\xAE', '\x83', '\xE6', '\x83', '\xB3', '\xE6', '\x84', '\x8F', '\xE7', '\x90', '\x86', '\xE7', '\x94', '\x9F', /* 主些因它想意理生 */
+ '\xE7', '\x95', '\xB6', '\xE7', '\x9C', '\x8B', '\xE7', '\x9D', '\x80', '\xE7', '\xBD', '\xAE', '\xE8', '\x80', '\x85', '\xE8', '\x87', '\xAA', '\xE8', '\x91', '\x97', '\xE8', '\xA3', '\xA1', /* 當看着置者自著裡 */
+ '\xE8', '\xBF', '\x87', '\xE8', '\xBF', '\x98', '\xE8', '\xBF', '\x9B', '\xE9', '\x80', '\xB2', '\xE9', '\x81', '\x8E', '\xE9', '\x81', '\x93', '\xE9', '\x82', '\x84', '\xE9', '\x87', '\x8C', /* 过还进進過道還里 */
+ '\xE9', '\x9D', '\xA2', /* 面 */
+#ifdef AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT
+ '\0',
+ '\xE4', '\xBA', '\x9B', '\xE4', '\xBB', '\xAC', '\xE4', '\xBD', '\xA0', '\xE4', '\xBE', '\x86', '\xE5', '\x80', '\x91', '\xE5', '\x88', '\xB0', '\xE5', '\x92', '\x8C', '\xE5', '\x9C', '\xB0', /* 些们你來們到和地 */
+ '\xE5', '\xA5', '\xB9', '\xE5', '\xB0', '\x86', '\xE5', '\xB0', '\x87', '\xE5', '\xB0', '\xB1', '\xE5', '\xB9', '\xB4', '\xE5', '\xBE', '\x97', '\xE6', '\x83', '\x85', '\xE6', '\x9C', '\x80', /* 她将將就年得情最 */
+ '\xE6', '\xA0', '\xB7', '\xE6', '\xA8', '\xA3', '\xE7', '\x90', '\x86', '\xE8', '\x83', '\xBD', '\xE8', '\xAA', '\xAA', '\xE8', '\xAF', '\xB4', '\xE8', '\xBF', '\x99', '\xE9', '\x80', '\x99', /* 样樣理能說说这這 */
+ '\xE9', '\x80', '\x9A', /* 通 */
+ '\0',
+ '\xE5', '\x8D', '\xB3', '\xE5', '\x90', '\x97', '\xE5', '\x90', '\xA7', '\xE5', '\x90', '\xAC', '\xE5', '\x91', '\xA2', '\xE5', '\x93', '\x81', '\xE5', '\x93', '\x8D', '\xE5', '\x97', '\x8E', /* 即吗吧听呢品响嗎 */
+ '\xE5', '\xB8', '\x88', '\xE5', '\xB8', '\xAB', '\xE6', '\x94', '\xB6', '\xE6', '\x96', '\xAD', '\xE6', '\x96', '\xB7', '\xE6', '\x98', '\x8E', '\xE7', '\x9C', '\xBC', '\xE9', '\x96', '\x93', /* 师師收断斷明眼間 */
+ '\xE9', '\x97', '\xB4', '\xE9', '\x99', '\x85', '\xE9', '\x99', '\x88', '\xE9', '\x99', '\x90', '\xE9', '\x99', '\xA4', '\xE9', '\x99', '\xB3', '\xE9', '\x9A', '\x8F', '\xE9', '\x9A', '\x9B', /* 间际陈限除陳随際 */
+ '\xE9', '\x9A', '\xA8', /* 隨 */
+ '\0',
+ '\xE4', '\xBA', '\x8B', '\xE5', '\x89', '\x8D', '\xE5', '\xAD', '\xB8', '\xE5', '\xB0', '\x86', '\xE5', '\xB0', '\x87', '\xE6', '\x83', '\x85', '\xE6', '\x83', '\xB3', '\xE6', '\x88', '\x96', /* 事前學将將情想或 */
+ '\xE6', '\x94', '\xBF', '\xE6', '\x96', '\xAF', '\xE6', '\x96', '\xB0', '\xE6', '\xA0', '\xB7', '\xE6', '\xA8', '\xA3', '\xE6', '\xB0', '\x91', '\xE6', '\xB2', '\x92', '\xE6', '\xB2', '\xA1', /* 政斯新样樣民沒没 */
+ '\xE7', '\x84', '\xB6', '\xE7', '\x89', '\xB9', '\xE7', '\x8E', '\xB0', '\xE7', '\x8F', '\xBE', '\xE7', '\x90', '\x83', '\xE7', '\xAC', '\xAC', '\xE7', '\xB6', '\x93', '\xE8', '\xB0', '\x81', /* 然特现現球第經谁 */
+ '\xE8', '\xB5', '\xB7', /* 起 */
+ '\0',
+ '\xE4', '\xBE', '\x8B', '\xE5', '\x88', '\xA5', '\xE5', '\x88', '\xAB', '\xE5', '\x88', '\xB6', '\xE5', '\x8A', '\xA8', '\xE5', '\x8B', '\x95', '\xE5', '\x90', '\x97', '\xE5', '\x97', '\x8E', /* 例別别制动動吗嗎 */
+ '\xE5', '\xA2', '\x9E', '\xE6', '\x8C', '\x87', '\xE6', '\x98', '\x8E', '\xE6', '\x9C', '\x9D', '\xE6', '\x9C', '\x9F', '\xE6', '\x9E', '\x84', '\xE7', '\x89', '\xA9', '\xE7', '\xA1', '\xAE', /* 增指明朝期构物确 */
+ '\xE7', '\xA7', '\x8D', '\xE8', '\xAA', '\xBF', '\xE8', '\xB0', '\x83', '\xE8', '\xB2', '\xBB', '\xE8', '\xB4', '\xB9', '\xE9', '\x82', '\xA3', '\xE9', '\x83', '\xBD', '\xE9', '\x96', '\x93', /* 种調调費费那都間 */
+ '\xE9', '\x97', '\xB4', /* 间 */
+#endif /* AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT */
+#endif /* AF_CONFIG_OPTION_CJK */
+ '\0',
+
+ };
+
+
+ /* stringsets are specific to scripts */
+ FT_LOCAL_ARRAY_DEF( AF_Blue_StringRec )
+ af_blue_stringsets[] =
+ {
+ /* */
+ { AF_BLUE_STRING_LATIN_CAPITAL_TOP, AF_BLUE_PROPERTY_LATIN_TOP },
+ { AF_BLUE_STRING_LATIN_CAPITAL_BOTTOM, 0 },
+ { AF_BLUE_STRING_LATIN_SMALL_F_TOP, AF_BLUE_PROPERTY_LATIN_TOP },
+ { AF_BLUE_STRING_LATIN_SMALL, AF_BLUE_PROPERTY_LATIN_TOP |
+ AF_BLUE_PROPERTY_LATIN_X_HEIGHT },
+ { AF_BLUE_STRING_LATIN_SMALL, 0 },
+ { AF_BLUE_STRING_LATIN_SMALL_DESCENDER, 0 },
+ { AF_BLUE_STRING_MAX, 0 },
+ { AF_BLUE_STRING_GREEK_CAPITAL_TOP, AF_BLUE_PROPERTY_LATIN_TOP },
+ { AF_BLUE_STRING_GREEK_CAPITAL_BOTTOM, 0 },
+ { AF_BLUE_STRING_GREEK_SMALL_BETA_TOP, AF_BLUE_PROPERTY_LATIN_TOP },
+ { AF_BLUE_STRING_GREEK_SMALL, AF_BLUE_PROPERTY_LATIN_TOP |
+ AF_BLUE_PROPERTY_LATIN_X_HEIGHT },
+ { AF_BLUE_STRING_GREEK_SMALL, 0 },
+ { AF_BLUE_STRING_GREEK_SMALL_DESCENDER, 0 },
+ { AF_BLUE_STRING_MAX, 0 },
+ { AF_BLUE_STRING_CYRILLIC_CAPITAL_TOP, AF_BLUE_PROPERTY_LATIN_TOP },
+ { AF_BLUE_STRING_CYRILLIC_CAPITAL_BOTTOM, 0 },
+ { AF_BLUE_STRING_CYRILLIC_SMALL, AF_BLUE_PROPERTY_LATIN_TOP |
+ AF_BLUE_PROPERTY_LATIN_X_HEIGHT },
+ { AF_BLUE_STRING_CYRILLIC_SMALL, 0 },
+ { AF_BLUE_STRING_CYRILLIC_SMALL_DESCENDER, 0 },
+ { AF_BLUE_STRING_MAX, 0 },
+ { AF_BLUE_STRING_HEBREW_TOP, AF_BLUE_PROPERTY_LATIN_TOP |
+ AF_BLUE_PROPERTY_LATIN_LONG },
+ { AF_BLUE_STRING_HEBREW_BOTTOM, 0 },
+ { AF_BLUE_STRING_HEBREW_DESCENDER, 0 },
+ { AF_BLUE_STRING_MAX, 0 },
+#ifdef AF_CONFIG_OPTION_CJK
+ { AF_BLUE_STRING_CJK_TOP_FILL, AF_BLUE_PROPERTY_CJK_TOP |
+ AF_BLUE_PROPERTY_CJK_FILL },
+ { AF_BLUE_STRING_CJK_TOP_UNFILL, AF_BLUE_PROPERTY_CJK_TOP },
+ { AF_BLUE_STRING_CJK_BOTTOM_FILL, AF_BLUE_PROPERTY_CJK_FILL },
+ { AF_BLUE_STRING_CJK_BOTTOM_UNFILL, 0 },
+#ifdef AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT
+ { AF_BLUE_STRING_CJK_LEFT_FILL, AF_BLUE_PROPERTY_CJK_HORIZ |
+ AF_BLUE_PROPERTY_CJK_FILL },
+ { AF_BLUE_STRING_CJK_LEFT_UNFILL, AF_BLUE_PROPERTY_CJK_HORIZ },
+ { AF_BLUE_STRING_CJK_RIGHT_FILL, AF_BLUE_PROPERTY_CJK_HORIZ |
+ AF_BLUE_PROPERTY_CJK_RIGHT |
+ AF_BLUE_PROPERTY_CJK_FILL },
+ { AF_BLUE_STRING_CJK_RIGHT_UNFILL, AF_BLUE_PROPERTY_CJK_HORIZ |
+ AF_BLUE_PROPERTY_CJK_RIGHT },
+#endif /* AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT */
+ { AF_BLUE_STRING_MAX, 0 },
+#endif /* AF_CONFIG_OPTION_CJK */
+
+ };
+
+
+/* END */
diff --git a/src/autofit/afblue.cin b/src/autofit/afblue.cin
new file mode 100644
index 0000000..c693d89
--- /dev/null
+++ b/src/autofit/afblue.cin
@@ -0,0 +1,39 @@
+/***************************************************************************/
+/* */
+/* afblue.c */
+/* */
+/* Auto-fitter data for blue strings (body). */
+/* */
+/* Copyright 2013 by */
+/* David Turner, Robert Wilhelm, and Werner Lemberg. */
+/* */
+/* This file is part of the FreeType project, and may only be used, */
+/* modified, and distributed under the terms of the FreeType project */
+/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
+/* this file you indicate that you have read the license and */
+/* understand and accept it fully. */
+/* */
+/***************************************************************************/
+
+
+#include "aftypes.h"
+
+
+ FT_LOCAL_ARRAY_DEF( char )
+ af_blue_strings[] =
+ {
+ /* */
+@AF_BLUE_STRINGS_ARRAY@
+ };
+
+
+ /* stringsets are specific to scripts */
+ FT_LOCAL_ARRAY_DEF( AF_Blue_StringRec )
+ af_blue_stringsets[] =
+ {
+ /* */
+@AF_BLUE_STRINGSETS_ARRAY@
+ };
+
+
+/* END */
diff --git a/src/autofit/afblue.dat b/src/autofit/afblue.dat
new file mode 100644
index 0000000..d488f3f
--- /dev/null
+++ b/src/autofit/afblue.dat
@@ -0,0 +1,218 @@
+// afblue.dat
+//
+// Auto-fitter data for blue strings.
+//
+// Copyright 2013 by
+// David Turner, Robert Wilhelm, and Werner Lemberg.
+//
+// This file is part of the FreeType project, and may only be used,
+// modified, and distributed under the terms of the FreeType project
+// license, LICENSE.TXT. By continuing to use, modify, or distribute
+// this file you indicate that you have read the license and
+// understand and accept it fully.
+
+
+// This file contains data specific to blue zones. It gets processed by
+// a script to simulate `jagged arrays', with enumeration values holding
+// offsets into the arrays.
+//
+// The format of the file is rather simple: A section starts with three
+// labels separated by whitespace and followed by a colon (everything in a
+// single line); the first label gives the name of the enumeration template,
+// the second the name of the array template, and the third the name of the
+// `maximum' template, holding the size of the largest array element. The
+// script then fills the corresponding templates (indicated by `@'
+// characters around the name).
+//
+// A section contains one or more data records. Each data record consists
+// of two or more lines. The first line holds the enumeration name, and the
+// remaining lines the corresponding array data.
+//
+// There are two possible representations for array data.
+//
+// - A string of characters in UTF-8 encoding enclosed in double quotes,
+// using C syntax. There can be only one string per line, thus the
+// starting and ending double quote must be the first and last character
+// in the line, respectively, ignoring whitespace before and after the
+// string. If there are multiple strings (in multiple lines), they are
+// concatenated to a single string. In the output, a string gets
+// represented as a series of singles bytes, followed by a zero byte. The
+// enumeration values simply hold byte offsets to the start of the
+// corresponding strings.
+//
+// - Data blocks enclosed in balanced braces, which get copied verbatim and
+// which can span multiple lines. The opening brace of a block must be
+// the first character of a line (ignoring whitespace), and the closing
+// brace the last (ignoring whitespace also). The script appends a comma
+// character after each block and counts the number of blocks to set the
+// enumeration values.
+//
+// A section can contain either strings only or data blocks only.
+//
+// A comment line starts with `//'; it gets removed. A preprocessor
+// directive line (using the standard syntax of `cpp') starts with `#' and
+// gets copied verbatim to both the enumeration and the array. Whitespace
+// outside of a string is insignificant.
+//
+// Preprocessor directives are ignored while the script computes maximum
+// values; this essentially means that the maximum values can easily be too
+// large. Given that the purpose of those values is to create local
+// fixed-size arrays at compile time for further processing of the blue zone
+// data, this isn't a problem. Note the the final zero byte of a string is
+// not counted. Note also that the count holds the number of UTF-8 encoded
+// characters, not bytes.
+
+
+AF_BLUE_STRING_ENUM AF_BLUE_STRINGS_ARRAY AF_BLUE_STRING_MAX_LEN:
+
+ AF_BLUE_STRING_LATIN_CAPITAL_TOP
+ "THEZOCQS"
+ AF_BLUE_STRING_LATIN_CAPITAL_BOTTOM
+ "HEZLOCUS"
+ AF_BLUE_STRING_LATIN_SMALL_F_TOP
+ "fijkdbh"
+ AF_BLUE_STRING_LATIN_SMALL
+ "xzroesc"
+ AF_BLUE_STRING_LATIN_SMALL_DESCENDER
+ "pqgjy"
+
+ AF_BLUE_STRING_GREEK_CAPITAL_TOP
+ "ΓΒΕΖΘΟΩ"
+ AF_BLUE_STRING_GREEK_CAPITAL_BOTTOM
+ "ΒΔΖΞΘΟ"
+ AF_BLUE_STRING_GREEK_SMALL_BETA_TOP
+ "βθδζλξ"
+ AF_BLUE_STRING_GREEK_SMALL
+ "αειοπστω"
+ AF_BLUE_STRING_GREEK_SMALL_DESCENDER
+ "βγημρφχψ"
+
+ AF_BLUE_STRING_CYRILLIC_CAPITAL_TOP
+ "БВЕПЗОСЭ"
+ AF_BLUE_STRING_CYRILLIC_CAPITAL_BOTTOM
+ "БВЕШЗОСЭ"
+ AF_BLUE_STRING_CYRILLIC_SMALL
+ "хпншезос"
+ AF_BLUE_STRING_CYRILLIC_SMALL_DESCENDER
+ "руф"
+
+ AF_BLUE_STRING_HEBREW_TOP
+ "בדהחךכםס"
+ AF_BLUE_STRING_HEBREW_BOTTOM
+ "בטכםסצ"
+ AF_BLUE_STRING_HEBREW_DESCENDER
+ "קךןףץ"
+
+#ifdef AF_CONFIG_OPTION_CJK
+
+ AF_BLUE_STRING_CJK_TOP_FILL
+ "他们你來們到和地"
+ "对對就席我时時會"
+ "来為能舰說说这這"
+ "齊"
+ AF_BLUE_STRING_CJK_TOP_UNFILL
+ "军同已愿既星是景"
+ "民照现現理用置要"
+ "軍那配里開雷露面"
+ "顾"
+ AF_BLUE_STRING_CJK_BOTTOM_FILL
+ "个为人他以们你來"
+ "個們到和大对對就"
+ "我时時有来為要說"
+ "说"
+ AF_BLUE_STRING_CJK_BOTTOM_UNFILL
+ "主些因它想意理生"
+ "當看着置者自著裡"
+ "过还进進過道還里"
+ "面"
+
+#ifdef AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT
+
+ AF_BLUE_STRING_CJK_LEFT_FILL
+ "些们你來們到和地"
+ "她将將就年得情最"
+ "样樣理能說说这這"
+ "通"
+ AF_BLUE_STRING_CJK_LEFT_UNFILL
+ "即吗吧听呢品响嗎"
+ "师師收断斷明眼間"
+ "间际陈限除陳随際"
+ "隨"
+ AF_BLUE_STRING_CJK_RIGHT_FILL
+ "事前學将將情想或"
+ "政斯新样樣民沒没"
+ "然特现現球第經谁"
+ "起"
+ AF_BLUE_STRING_CJK_RIGHT_UNFILL
+ "例別别制动動吗嗎"
+ "增指明朝期构物确"
+ "种調调費费那都間"
+ "间"
+
+#endif /* AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT */
+
+#endif /* AF_CONFIG_OPTION_CJK */
+
+
+AF_BLUE_STRINGSET_ENUM AF_BLUE_STRINGSETS_ARRAY AF_BLUE_STRINGSET_MAX_LEN:
+
+ AF_BLUE_STRINGSET_LATN
+ { AF_BLUE_STRING_LATIN_CAPITAL_TOP, AF_BLUE_PROPERTY_LATIN_TOP }
+ { AF_BLUE_STRING_LATIN_CAPITAL_BOTTOM, 0 }
+ { AF_BLUE_STRING_LATIN_SMALL_F_TOP, AF_BLUE_PROPERTY_LATIN_TOP }
+ { AF_BLUE_STRING_LATIN_SMALL, AF_BLUE_PROPERTY_LATIN_TOP |
+ AF_BLUE_PROPERTY_LATIN_X_HEIGHT }
+ { AF_BLUE_STRING_LATIN_SMALL, 0 }
+ { AF_BLUE_STRING_LATIN_SMALL_DESCENDER, 0 }
+ { AF_BLUE_STRING_MAX, 0 }
+
+ AF_BLUE_STRINGSET_GREK
+ { AF_BLUE_STRING_GREEK_CAPITAL_TOP, AF_BLUE_PROPERTY_LATIN_TOP }
+ { AF_BLUE_STRING_GREEK_CAPITAL_BOTTOM, 0 }
+ { AF_BLUE_STRING_GREEK_SMALL_BETA_TOP, AF_BLUE_PROPERTY_LATIN_TOP }
+ { AF_BLUE_STRING_GREEK_SMALL, AF_BLUE_PROPERTY_LATIN_TOP |
+ AF_BLUE_PROPERTY_LATIN_X_HEIGHT }
+ { AF_BLUE_STRING_GREEK_SMALL, 0 }
+ { AF_BLUE_STRING_GREEK_SMALL_DESCENDER, 0 }
+ { AF_BLUE_STRING_MAX, 0 }
+
+ AF_BLUE_STRINGSET_CYRL
+ { AF_BLUE_STRING_CYRILLIC_CAPITAL_TOP, AF_BLUE_PROPERTY_LATIN_TOP }
+ { AF_BLUE_STRING_CYRILLIC_CAPITAL_BOTTOM, 0 }
+ { AF_BLUE_STRING_CYRILLIC_SMALL, AF_BLUE_PROPERTY_LATIN_TOP |
+ AF_BLUE_PROPERTY_LATIN_X_HEIGHT }
+ { AF_BLUE_STRING_CYRILLIC_SMALL, 0 }
+ { AF_BLUE_STRING_CYRILLIC_SMALL_DESCENDER, 0 }
+ { AF_BLUE_STRING_MAX, 0 }
+
+ AF_BLUE_STRINGSET_HEBR
+ { AF_BLUE_STRING_HEBREW_TOP, AF_BLUE_PROPERTY_LATIN_TOP |
+ AF_BLUE_PROPERTY_LATIN_LONG }
+ { AF_BLUE_STRING_HEBREW_BOTTOM, 0 }
+ { AF_BLUE_STRING_HEBREW_DESCENDER, 0 }
+ { AF_BLUE_STRING_MAX, 0 }
+
+#ifdef AF_CONFIG_OPTION_CJK
+
+ AF_BLUE_STRINGSET_HANI
+ { AF_BLUE_STRING_CJK_TOP_FILL, AF_BLUE_PROPERTY_CJK_TOP |
+ AF_BLUE_PROPERTY_CJK_FILL }
+ { AF_BLUE_STRING_CJK_TOP_UNFILL, AF_BLUE_PROPERTY_CJK_TOP }
+ { AF_BLUE_STRING_CJK_BOTTOM_FILL, AF_BLUE_PROPERTY_CJK_FILL }
+ { AF_BLUE_STRING_CJK_BOTTOM_UNFILL, 0 }
+#ifdef AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT
+ { AF_BLUE_STRING_CJK_LEFT_FILL, AF_BLUE_PROPERTY_CJK_HORIZ |
+ AF_BLUE_PROPERTY_CJK_FILL }
+ { AF_BLUE_STRING_CJK_LEFT_UNFILL, AF_BLUE_PROPERTY_CJK_HORIZ }
+ { AF_BLUE_STRING_CJK_RIGHT_FILL, AF_BLUE_PROPERTY_CJK_HORIZ |
+ AF_BLUE_PROPERTY_CJK_RIGHT |
+ AF_BLUE_PROPERTY_CJK_FILL }
+ { AF_BLUE_STRING_CJK_RIGHT_UNFILL, AF_BLUE_PROPERTY_CJK_HORIZ |
+ AF_BLUE_PROPERTY_CJK_RIGHT }
+#endif /* AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT */
+ { AF_BLUE_STRING_MAX, 0 }
+
+#endif /* AF_CONFIG_OPTION_CJK */
+
+
+// END
diff --git a/src/autofit/afblue.h b/src/autofit/afblue.h
new file mode 100644
index 0000000..86a3649
--- /dev/null
+++ b/src/autofit/afblue.h
@@ -0,0 +1,199 @@
+/* This file has been generated by the Perl script `afblue.pl', */
+/* using data from file `afblue.dat'. */
+
+/***************************************************************************/
+/* */
+/* afblue.h */
+/* */
+/* Auto-fitter data for blue strings (specification). */
+/* */
+/* Copyright 2013 by */
+/* David Turner, Robert Wilhelm, and Werner Lemberg. */
+/* */
+/* This file is part of the FreeType project, and may only be used, */
+/* modified, and distributed under the terms of the FreeType project */
+/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
+/* this file you indicate that you have read the license and */
+/* understand and accept it fully. */
+/* */
+/***************************************************************************/
+
+
+#ifndef __AFBLUE_H__
+#define __AFBLUE_H__
+
+
+FT_BEGIN_HEADER
+
+
+ /* an auxiliary macro to decode a UTF-8 character -- since we only use */
+ /* hard-coded, self-converted data, no error checking is performed */
+#define GET_UTF8_CHAR( ch, p ) \
+ ch = (unsigned char)*p++; \
+ if ( ch >= 0x80 ) \
+ { \
+ FT_UInt len; \
+ \
+ \
+ if ( ch < 0xE0 ) \
+ { \
+ len = 1; \
+ ch &= 0x1F; \
+ } \
+ else if ( ch < 0xF0 ) \
+ { \
+ len = 2; \
+ ch &= 0x0F; \
+ } \
+ else \
+ { \
+ len = 3; \
+ ch &= 0x07; \
+ } \
+ \
+ for ( ; len > 0; len-- ) \
+ ch = ( ch << 6 ) | ( *p++ & 0x3F ); \
+ }
+
+
+ /*************************************************************************/
+ /*************************************************************************/
+ /***** *****/
+ /***** B L U E S T R I N G S *****/
+ /***** *****/
+ /*************************************************************************/
+ /*************************************************************************/
+
+ /* At the bottommost level, we define strings for finding blue zones. */
+
+
+#define AF_BLUE_STRING_MAX_LEN 25
+
+ /* The AF_Blue_String enumeration values are offsets into the */
+ /* `af_blue_strings' array. */
+
+ typedef enum AF_Blue_String_
+ {
+ AF_BLUE_STRING_LATIN_CAPITAL_TOP = 0,
+ AF_BLUE_STRING_LATIN_CAPITAL_BOTTOM = 9,
+ AF_BLUE_STRING_LATIN_SMALL_F_TOP = 18,
+ AF_BLUE_STRING_LATIN_SMALL = 26,
+ AF_BLUE_STRING_LATIN_SMALL_DESCENDER = 34,
+ AF_BLUE_STRING_GREEK_CAPITAL_TOP = 40,
+ AF_BLUE_STRING_GREEK_CAPITAL_BOTTOM = 55,
+ AF_BLUE_STRING_GREEK_SMALL_BETA_TOP = 68,
+ AF_BLUE_STRING_GREEK_SMALL = 81,
+ AF_BLUE_STRING_GREEK_SMALL_DESCENDER = 98,
+ AF_BLUE_STRING_CYRILLIC_CAPITAL_TOP = 115,
+ AF_BLUE_STRING_CYRILLIC_CAPITAL_BOTTOM = 132,
+ AF_BLUE_STRING_CYRILLIC_SMALL = 149,
+ AF_BLUE_STRING_CYRILLIC_SMALL_DESCENDER = 166,
+ AF_BLUE_STRING_HEBREW_TOP = 173,
+ AF_BLUE_STRING_HEBREW_BOTTOM = 190,
+ AF_BLUE_STRING_HEBREW_DESCENDER = 203,
+ af_blue_1_1 = 213,
+#ifdef AF_CONFIG_OPTION_CJK
+ AF_BLUE_STRING_CJK_TOP_FILL = af_blue_1_1 + 1,
+ AF_BLUE_STRING_CJK_TOP_UNFILL = af_blue_1_1 + 77,
+ AF_BLUE_STRING_CJK_BOTTOM_FILL = af_blue_1_1 + 153,
+ AF_BLUE_STRING_CJK_BOTTOM_UNFILL = af_blue_1_1 + 229,
+ af_blue_1_1_1 = af_blue_1_1 + 304,
+#ifdef AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT
+ AF_BLUE_STRING_CJK_LEFT_FILL = af_blue_1_1_1 + 1,
+ AF_BLUE_STRING_CJK_LEFT_UNFILL = af_blue_1_1_1 + 77,
+ AF_BLUE_STRING_CJK_RIGHT_FILL = af_blue_1_1_1 + 153,
+ AF_BLUE_STRING_CJK_RIGHT_UNFILL = af_blue_1_1_1 + 229,
+ af_blue_1_2_1 = af_blue_1_1_1 + 304,
+#else
+ af_blue_1_2_1 = af_blue_1_1_1 + 0,
+#endif /* AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT */
+ af_blue_1_2 = af_blue_1_2_1 + 0,
+#else
+ af_blue_1_2 = af_blue_1_2_1 + 0,
+#endif /* AF_CONFIG_OPTION_CJK */
+
+
+ AF_BLUE_STRING_MAX /* do not remove */
+
+ } AF_Blue_String;
+
+
+ FT_LOCAL_ARRAY( char )
+ af_blue_strings[];
+
+
+ /*************************************************************************/
+ /*************************************************************************/
+ /***** *****/
+ /***** B L U E S T R I N G S E T S *****/
+ /***** *****/
+ /*************************************************************************/
+ /*************************************************************************/
+
+ /* The next level is to group blue strings into script-specific sets. */
+
+
+ /* Properties are specific to a writing system. We assume that a given */
+ /* blue string can't be used in more than a single writing system, which */
+ /* is a safe bet. */
+#define AF_BLUE_PROPERTY_LATIN_TOP ( 1 << 0 )
+#define AF_BLUE_PROPERTY_LATIN_X_HEIGHT ( 1 << 1 )
+#define AF_BLUE_PROPERTY_LATIN_LONG ( 1 << 2 )
+
+#define AF_BLUE_PROPERTY_CJK_HORIZ ( 1 << 0 )
+#define AF_BLUE_PROPERTY_CJK_TOP ( 1 << 1 )
+#define AF_BLUE_PROPERTY_CJK_FILL ( 1 << 2 )
+#define AF_BLUE_PROPERTY_CJK_RIGHT AF_BLUE_PROPERTY_CJK_TOP
+
+
+#define AF_BLUE_STRINGSET_MAX_LEN 9
+
+ /* The AF_Blue_Stringset enumeration values are offsets into the */
+ /* `af_blue_stringsets' array. */
+
+ typedef enum AF_Blue_Stringset_
+ {
+ AF_BLUE_STRINGSET_LATN = 0,
+ AF_BLUE_STRINGSET_GREK = 7,
+ AF_BLUE_STRINGSET_CYRL = 14,
+ AF_BLUE_STRINGSET_HEBR = 20,
+ af_blue_2_1 = 24,
+#ifdef AF_CONFIG_OPTION_CJK
+ AF_BLUE_STRINGSET_HANI = af_blue_2_1 + 0,
+ af_blue_2_1_1 = af_blue_2_1 + 4,
+#ifdef AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT
+ af_blue_2_2_1 = af_blue_2_1_1 + 4,
+#else
+ af_blue_2_2_1 = af_blue_2_1_1 + 0,
+#endif /* AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT */
+ af_blue_2_2 = af_blue_2_2_1 + 1,
+#else
+ af_blue_2_2 = af_blue_2_2_1 + 0,
+#endif /* AF_CONFIG_OPTION_CJK */
+
+
+ AF_BLUE_STRINGSET_MAX /* do not remove */
+
+ } AF_Blue_Stringset;
+
+
+ typedef struct AF_Blue_StringRec_
+ {
+ AF_Blue_String string;
+ FT_UShort properties;
+
+ } AF_Blue_StringRec;
+
+
+ FT_LOCAL_ARRAY( AF_Blue_StringRec )
+ af_blue_stringsets[];
+
+/* */
+
+FT_END_HEADER
+
+
+#endif /* __AFBLUE_H__ */
+
+
+/* END */
diff --git a/src/autofit/afblue.hin b/src/autofit/afblue.hin
new file mode 100644
index 0000000..00282c3
--- /dev/null
+++ b/src/autofit/afblue.hin
@@ -0,0 +1,142 @@
+/***************************************************************************/
+/* */
+/* afblue.h */
+/* */
+/* Auto-fitter data for blue strings (specification). */
+/* */
+/* Copyright 2013 by */
+/* David Turner, Robert Wilhelm, and Werner Lemberg. */
+/* */
+/* This file is part of the FreeType project, and may only be used, */
+/* modified, and distributed under the terms of the FreeType project */
+/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
+/* this file you indicate that you have read the license and */
+/* understand and accept it fully. */
+/* */
+/***************************************************************************/
+
+
+#ifndef __AFBLUE_H__
+#define __AFBLUE_H__
+
+
+FT_BEGIN_HEADER
+
+
+ /* an auxiliary macro to decode a UTF-8 character -- since we only use */
+ /* hard-coded, self-converted data, no error checking is performed */
+#define GET_UTF8_CHAR( ch, p ) \
+ ch = (unsigned char)*p++; \
+ if ( ch >= 0x80 ) \
+ { \
+ FT_UInt len; \
+ \
+ \
+ if ( ch < 0xE0 ) \
+ { \
+ len = 1; \
+ ch &= 0x1F; \
+ } \
+ else if ( ch < 0xF0 ) \
+ { \
+ len = 2; \
+ ch &= 0x0F; \
+ } \
+ else \
+ { \
+ len = 3; \
+ ch &= 0x07; \
+ } \
+ \
+ for ( ; len > 0; len-- ) \
+ ch = ( ch << 6 ) | ( *p++ & 0x3F ); \
+ }
+
+
+ /*************************************************************************/
+ /*************************************************************************/
+ /***** *****/
+ /***** B L U E S T R I N G S *****/
+ /***** *****/
+ /*************************************************************************/
+ /*************************************************************************/
+
+ /* At the bottommost level, we define strings for finding blue zones. */
+
+
+#define AF_BLUE_STRING_MAX_LEN @AF_BLUE_STRING_MAX_LEN@
+
+ /* The AF_Blue_String enumeration values are offsets into the */
+ /* `af_blue_strings' array. */
+
+ typedef enum AF_Blue_String_
+ {
+@AF_BLUE_STRING_ENUM@
+
+ AF_BLUE_STRING_MAX /* do not remove */
+
+ } AF_Blue_String;
+
+
+ FT_LOCAL_ARRAY( char )
+ af_blue_strings[];
+
+
+ /*************************************************************************/
+ /*************************************************************************/
+ /***** *****/
+ /***** B L U E S T R I N G S E T S *****/
+ /***** *****/
+ /*************************************************************************/
+ /*************************************************************************/
+
+ /* The next level is to group blue strings into script-specific sets. */
+
+
+ /* Properties are specific to a writing system. We assume that a given */
+ /* blue string can't be used in more than a single writing system, which */
+ /* is a safe bet. */
+#define AF_BLUE_PROPERTY_LATIN_TOP ( 1 << 0 )
+#define AF_BLUE_PROPERTY_LATIN_X_HEIGHT ( 1 << 1 )
+#define AF_BLUE_PROPERTY_LATIN_LONG ( 1 << 2 )
+
+#define AF_BLUE_PROPERTY_CJK_HORIZ ( 1 << 0 )
+#define AF_BLUE_PROPERTY_CJK_TOP ( 1 << 1 )
+#define AF_BLUE_PROPERTY_CJK_FILL ( 1 << 2 )
+#define AF_BLUE_PROPERTY_CJK_RIGHT AF_BLUE_PROPERTY_CJK_TOP
+
+
+#define AF_BLUE_STRINGSET_MAX_LEN @AF_BLUE_STRINGSET_MAX_LEN@
+
+ /* The AF_Blue_Stringset enumeration values are offsets into the */
+ /* `af_blue_stringsets' array. */
+
+ typedef enum AF_Blue_Stringset_
+ {
+@AF_BLUE_STRINGSET_ENUM@
+
+ AF_BLUE_STRINGSET_MAX /* do not remove */
+
+ } AF_Blue_Stringset;
+
+
+ typedef struct AF_Blue_StringRec_
+ {
+ AF_Blue_String string;
+ FT_UShort properties;
+
+ } AF_Blue_StringRec;
+
+
+ FT_LOCAL_ARRAY( AF_Blue_StringRec )
+ af_blue_stringsets[];
+
+/* */
+
+FT_END_HEADER
+
+
+#endif /* __AFBLUE_H__ */
+
+
+/* END */
diff --git a/src/autofit/afcjk.c b/src/autofit/afcjk.c
index f69a528..7a6f835 100644
--- a/src/autofit/afcjk.c
+++ b/src/autofit/afcjk.c
@@ -26,7 +26,7 @@
#include FT_ADVANCES_H
#include FT_INTERNAL_DEBUG_H
-#include "aftypes.h"
+#include "afglobal.h"
#include "aflatin.h"
@@ -73,6 +73,12 @@
AF_GlyphHintsRec hints[1];
+ FT_TRACE5(( "\n"
+ "cjk standard widths computation (script `%s')\n"
+ "===============================================\n"
+ "\n",
+ af_script_names[metrics->root.script_class->script] ));
+
af_glyph_hints_init( hints, face->memory );
metrics->axis[AF_DIMENSION_HORZ].width_count = 0;
@@ -86,11 +92,15 @@
AF_Scaler scaler = &dummy->root.scaler;
- glyph_index = FT_Get_Char_Index( face,
- metrics->root.clazz->standard_char );
+ glyph_index = FT_Get_Char_Index(
+ face,
+ metrics->root.script_class->standard_char );
if ( glyph_index == 0 )
goto Exit;
+ FT_TRACE5(( "standard character: U+%04lX (glyph index %d)\n",
+ metrics->root.script_class->standard_char, glyph_index ));
+
error = FT_Load_Glyph( face, glyph_index, FT_LOAD_NO_SCALE );
if ( error || face->glyph->outline.n_points <= 0 )
goto Exit;
@@ -122,11 +132,13 @@
FT_UInt num_widths = 0;
- error = af_latin_hints_compute_segments( hints, (AF_Dimension)dim );
+ error = af_latin_hints_compute_segments( hints,
+ (AF_Dimension)dim );
if ( error )
goto Exit;
- af_latin_hints_link_segments( hints, (AF_Dimension)dim );
+ af_latin_hints_link_segments( hints,
+ (AF_Dimension)dim );
seg = axhints->segments;
limit = seg + axhints->num_segments;
@@ -151,7 +163,7 @@
}
/* this also replaces multiple almost identical stem widths */
- /* with a single one (the value 100 is heuristic) */
+ /* with a single one (the value 100 is heuristic) */
af_sort_and_quantize_widths( &num_widths, axis->widths,
dummy->units_per_em / 100 );
axis->width_count = num_widths;
@@ -171,263 +183,201 @@
axis->edge_distance_threshold = stdw / 5;
axis->standard_width = stdw;
axis->extra_light = 0;
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+ {
+ FT_UInt i;
+
+
+ FT_TRACE5(( "%s widths:\n",
+ dim == AF_DIMENSION_VERT ? "horizontal"
+ : "vertical" ));
+
+ FT_TRACE5(( " %d (standard)", axis->standard_width ));
+ for ( i = 1; i < axis->width_count; i++ )
+ FT_TRACE5(( " %d", axis->widths[i].org ));
+
+ FT_TRACE5(( "\n" ));
+ }
+#endif
}
}
+ FT_TRACE5(( "\n" ));
+
af_glyph_hints_done( hints );
}
-#define AF_CJK_MAX_TEST_CHARACTERS 32
-
-
- /* Each blue zone has two types of fill and unfill, this is, */
- /* filling the entire glyph square or not. */
-
- enum
- {
- AF_CJK_BLUE_TYPE_FILL,
- AF_CJK_BLUE_TYPE_UNFILL,
- AF_CJK_BLUE_TYPE_MAX
- };
-
-
- /* Put some common and representative Han Ideographs characters here. */
- static const FT_ULong af_cjk_hani_blue_chars[AF_CJK_BLUE_MAX]
- [AF_CJK_BLUE_TYPE_MAX]
- [AF_CJK_MAX_TEST_CHARACTERS] =
- {
- {
- {
- 0x4ED6, 0x4EEC, 0x4F60, 0x4F86, 0x5011, 0x5230, 0x548C, 0x5730,
- 0x5BF9, 0x5C0D, 0x5C31, 0x5E2D, 0x6211, 0x65F6, 0x6642, 0x6703,
- 0x6765, 0x70BA, 0x80FD, 0x8230, 0x8AAA, 0x8BF4, 0x8FD9, 0x9019,
- 0x9F4A /* top fill */
- },
- {
- 0x519B, 0x540C, 0x5DF2, 0x613F, 0x65E2, 0x661F, 0x662F, 0x666F,
- 0x6C11, 0x7167, 0x73B0, 0x73FE, 0x7406, 0x7528, 0x7F6E, 0x8981,
- 0x8ECD, 0x90A3, 0x914D, 0x91CC, 0x958B, 0x96F7, 0x9732, 0x9762,
- 0x987E /* top unfill */
- }
- },
- {
- {
- 0x4E2A, 0x4E3A, 0x4EBA, 0x4ED6, 0x4EE5, 0x4EEC, 0x4F60, 0x4F86,
- 0x500B, 0x5011, 0x5230, 0x548C, 0x5927, 0x5BF9, 0x5C0D, 0x5C31,
- 0x6211, 0x65F6, 0x6642, 0x6709, 0x6765, 0x70BA, 0x8981, 0x8AAA,
- 0x8BF4 /* bottom fill */
- },
- {
- 0x4E3B, 0x4E9B, 0x56E0, 0x5B83, 0x60F3, 0x610F, 0x7406, 0x751F,
- 0x7576, 0x770B, 0x7740, 0x7F6E, 0x8005, 0x81EA, 0x8457, 0x88E1,
- 0x8FC7, 0x8FD8, 0x8FDB, 0x9032, 0x904E, 0x9053, 0x9084, 0x91CC,
- 0x9762 /* bottom unfill */
- }
- },
-#ifndef AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT
- { {0x0000}, {0x0000} },
- { {0x0000}, {0x0000} }
-#else
- {
- {
- 0x4E9B, 0x4EEC, 0x4F60, 0x4F86, 0x5011, 0x5230, 0x548C, 0x5730,
- 0x5979, 0x5C06, 0x5C07, 0x5C31, 0x5E74, 0x5F97, 0x60C5, 0x6700,
- 0x6837, 0x6A23, 0x7406, 0x80FD, 0x8AAA, 0x8BF4, 0x8FD9, 0x9019,
- 0x901A /* left fill */
- },
- {
- 0x5373, 0x5417, 0x5427, 0x542C, 0x5462, 0x54C1, 0x54CD, 0x55CE,
- 0x5E08, 0x5E2B, 0x6536, 0x65AD, 0x65B7, 0x660E, 0x773C, 0x9593,
- 0x95F4, 0x9645, 0x9648, 0x9650, 0x9664, 0x9673, 0x968F, 0x969B,
- 0x96A8 /* left unfill */
- }
- },
- {
- {
- 0x4E8B, 0x524D, 0x5B78, 0x5C06, 0x5C07, 0x60C5, 0x60F3, 0x6216,
- 0x653F, 0x65AF, 0x65B0, 0x6837, 0x6A23, 0x6C11, 0x6C92, 0x6CA1,
- 0x7136, 0x7279, 0x73B0, 0x73FE, 0x7403, 0x7B2C, 0x7D93, 0x8C01,
- 0x8D77 /* right fill */
- },
- {
- 0x4F8B, 0x5225, 0x522B, 0x5236, 0x52A8, 0x52D5, 0x5417, 0x55CE,
- 0x589E, 0x6307, 0x660E, 0x671D, 0x671F, 0x6784, 0x7269, 0x786E,
- 0x79CD, 0x8ABF, 0x8C03, 0x8CBB, 0x8D39, 0x90A3, 0x90FD, 0x9593,
- 0x95F4 /* right unfill */
- }
- }
-#endif /* AF_CONFIG_OPTION_CJK_BLUE_HANI_VERT */
- };
-
-
- /* Calculate blue zones for all the CJK_BLUE_XXX's. */
+ /* Find all blue zones. */
static void
- af_cjk_metrics_init_blues( AF_CJKMetrics metrics,
- FT_Face face,
- const FT_ULong blue_chars
- [AF_CJK_BLUE_MAX]
- [AF_CJK_BLUE_TYPE_MAX]
- [AF_CJK_MAX_TEST_CHARACTERS] )
+ af_cjk_metrics_init_blues( AF_CJKMetrics metrics,
+ FT_Face face )
{
- FT_Pos fills[AF_CJK_MAX_TEST_CHARACTERS];
- FT_Pos flats[AF_CJK_MAX_TEST_CHARACTERS];
+ FT_Pos fills[AF_BLUE_STRING_MAX_LEN];
+ FT_Pos flats[AF_BLUE_STRING_MAX_LEN];
- FT_Int num_fills;
- FT_Int num_flats;
+ FT_Int num_fills;
+ FT_Int num_flats;
- FT_Int bb;
- AF_CJKBlue blue;
- FT_Error error;
- AF_CJKAxis axis;
- FT_GlyphSlot glyph = face->glyph;
+ AF_CJKBlue blue;
+ FT_Error error;
+ AF_CJKAxis axis;
+ FT_Outline outline;
+
+ AF_Blue_Stringset bss = metrics->root.script_class->blue_stringset;
+ const AF_Blue_StringRec* bs = &af_blue_stringsets[bss];
#ifdef FT_DEBUG_LEVEL_TRACE
- FT_String* cjk_blue_name[AF_CJK_BLUE_MAX] = {
- (FT_String*)"top",
- (FT_String*)"bottom",
- (FT_String*)"left",
- (FT_String*)"right"
+ FT_String* cjk_blue_name[4] =
+ {
+ (FT_String*)"bottom", /* -- , -- */
+ (FT_String*)"top", /* -- , TOP */
+ (FT_String*)"left", /* HORIZ, -- */
+ (FT_String*)"right" /* HORIZ, TOP */
};
- FT_String* cjk_blue_type_name[AF_CJK_BLUE_TYPE_MAX] = {
- (FT_String*)"filled",
- (FT_String*)"unfilled"
+
+ FT_String* cjk_blue_type_name[2] =
+ {
+ (FT_String*)"unfilled", /* -- */
+ (FT_String*)"filled" /* FILL */
};
#endif
- /* We compute the blues simply by loading each character from the */
- /* `blue_chars[blues]' string, then computing its extreme points */
- /* (depending blue zone type etc.). */
+ /* we walk over the blue character strings as specified in the */
+ /* script's entry in the `af_blue_stringset' array, computing its */
+ /* extremum points (depending on the string properties) */
- FT_TRACE5(( "cjk blue zones computation\n" ));
- FT_TRACE5(( "------------------------------------------------\n" ));
+ FT_TRACE5(( "cjk blue zones computation\n"
+ "==========================\n"
+ "\n" ));
- for ( bb = 0; bb < AF_CJK_BLUE_MAX; bb++ )
+ for ( ; bs->string != AF_BLUE_STRING_MAX; bs++ )
{
- FT_Int fill_type;
- FT_Pos* blue_ref;
- FT_Pos* blue_shoot;
+ const char* p = &af_blue_strings[bs->string];
+ FT_Pos* blue_ref;
+ FT_Pos* blue_shoot;
+ if ( AF_CJK_IS_HORIZ_BLUE( bs ) )
+ axis = &metrics->axis[AF_DIMENSION_HORZ];
+ else
+ axis = &metrics->axis[AF_DIMENSION_VERT];
+
+ FT_TRACE5(( "blue zone %d:\n", axis->blue_count ));
+
num_fills = 0;
num_flats = 0;
- for ( fill_type = 0; fill_type < AF_CJK_BLUE_TYPE_MAX; fill_type++ )
+ FT_TRACE5(( " cjk blue %s/%s\n",
+ cjk_blue_name[AF_CJK_IS_HORIZ_BLUE( bs ) |
+ AF_CJK_IS_TOP_BLUE( bs ) ],
+ cjk_blue_type_name[!!AF_CJK_IS_FILLED_BLUE( bs )] ));
+
+ while ( *p )
{
- const FT_ULong* p = blue_chars[bb][fill_type];
- const FT_ULong* limit = p + AF_CJK_MAX_TEST_CHARACTERS;
- FT_Bool fill = FT_BOOL(
- fill_type == AF_CJK_BLUE_TYPE_FILL );
+ FT_ULong ch;
+ FT_UInt glyph_index;
+ FT_Pos best_pos; /* same as points.y or points.x, resp. */
+ FT_Int best_point;
+ FT_Vector* points;
- FT_TRACE5(( "cjk blue %s/%s\n", cjk_blue_name[bb],
- cjk_blue_type_name[fill_type] ));
+ GET_UTF8_CHAR( ch, p );
-
- for ( ; p < limit && *p; p++ )
+ /* load the character in the face -- skip unknown or empty ones */
+ glyph_index = FT_Get_Char_Index( face, ch );
+ if ( glyph_index == 0 )
{
- FT_UInt glyph_index;
- FT_Pos best_pos; /* same as points.y */
- FT_Int best_point;
- FT_Vector* points;
+ FT_TRACE5(( " U+%04lX unavailable\n", ch ));
+ continue;
+ }
+
+ error = FT_Load_Glyph( face, glyph_index, FT_LOAD_NO_SCALE );
+ outline = face->glyph->outline;
+ if ( error || outline.n_points <= 0 )
+ {
+ FT_TRACE5(( " U+%04lX contains no outlines\n", ch ));
+ continue;
+ }
+
+ /* now compute min or max point indices and coordinates */
+ points = outline.points;
+ best_point = -1;
+ best_pos = 0; /* make compiler happy */
+
+ {
+ FT_Int nn;
+ FT_Int first = 0;
+ FT_Int last = -1;
- FT_TRACE5(( " U+%lX...", *p ));
-
- /* load the character in the face -- skip unknown or empty ones */
- glyph_index = FT_Get_Char_Index( face, *p );
- if ( glyph_index == 0 )
+ for ( nn = 0; nn < outline.n_contours; first = last + 1, nn++ )
{
- FT_TRACE5(( "unavailable\n" ));
- continue;
- }
-
- error = FT_Load_Glyph( face, glyph_index, FT_LOAD_NO_SCALE );
- if ( error || glyph->outline.n_points <= 0 )
- {
- FT_TRACE5(( "no outline\n" ));
- continue;
- }
-
- /* now compute min or max point indices and coordinates */
- points = glyph->outline.points;
- best_point = -1;
- best_pos = 0; /* make compiler happy */
-
- {
- FT_Int nn;
- FT_Int first = 0;
- FT_Int last = -1;
+ FT_Int pp;
- for ( nn = 0;
- nn < glyph->outline.n_contours;
- first = last + 1, nn++ )
+ last = outline.contours[nn];
+
+ /* Avoid single-point contours since they are never rasterized. */
+ /* In some fonts, they correspond to mark attachment points */
+ /* which are way outside of the glyph's real outline. */
+ if ( last <= first )
+ continue;
+
+ if ( AF_CJK_IS_HORIZ_BLUE( bs ) )
{
- FT_Int pp;
-
-
- last = glyph->outline.contours[nn];
-
- /* Avoid single-point contours since they are never */
- /* rasterized. In some fonts, they correspond to mark */
- /* attachment points which are way outside of the glyph's */
- /* real outline. */
- if ( last <= first )
- continue;
-
- switch ( bb )
+ if ( AF_CJK_IS_RIGHT_BLUE( bs ) )
{
- case AF_CJK_BLUE_TOP:
- for ( pp = first; pp <= last; pp++ )
- if ( best_point < 0 || points[pp].y > best_pos )
- {
- best_point = pp;
- best_pos = points[pp].y;
- }
- break;
-
- case AF_CJK_BLUE_BOTTOM:
- for ( pp = first; pp <= last; pp++ )
- if ( best_point < 0 || points[pp].y < best_pos )
- {
- best_point = pp;
- best_pos = points[pp].y;
- }
- break;
-
- case AF_CJK_BLUE_LEFT:
- for ( pp = first; pp <= last; pp++ )
- if ( best_point < 0 || points[pp].x < best_pos )
- {
- best_point = pp;
- best_pos = points[pp].x;
- }
- break;
-
- case AF_CJK_BLUE_RIGHT:
for ( pp = first; pp <= last; pp++ )
if ( best_point < 0 || points[pp].x > best_pos )
{
best_point = pp;
best_pos = points[pp].x;
}
- break;
-
- default:
- ;
+ }
+ else
+ {
+ for ( pp = first; pp <= last; pp++ )
+ if ( best_point < 0 || points[pp].x < best_pos )
+ {
+ best_point = pp;
+ best_pos = points[pp].x;
+ }
}
}
- FT_TRACE5(( "best_pos=%5ld\n", best_pos ));
+ else
+ {
+ if ( AF_CJK_IS_TOP_BLUE( bs ) )
+ {
+ for ( pp = first; pp <= last; pp++ )
+ if ( best_point < 0 || points[pp].y > best_pos )
+ {
+ best_point = pp;
+ best_pos = points[pp].y;
+ }
+ }
+ else
+ {
+ for ( pp = first; pp <= last; pp++ )
+ if ( best_point < 0 || points[pp].y < best_pos )
+ {
+ best_point = pp;
+ best_pos = points[pp].y;
+ }
+ }
+ }
}
- if ( fill )
- fills[num_fills++] = best_pos;
- else
- flats[num_flats++] = best_pos;
+ FT_TRACE5(( " U+%04lX: best_pos = %5ld\n", ch, best_pos ));
}
+
+ if ( AF_CJK_IS_FILLED_BLUE( bs ) )
+ fills[num_fills++] = best_pos;
+ else
+ flats[num_flats++] = best_pos;
}
if ( num_flats == 0 && num_fills == 0 )
@@ -436,34 +386,30 @@
* we couldn't find a single glyph to compute this blue zone,
* we will simply ignore it then
*/
- FT_TRACE5(( "empty\n" ));
+ FT_TRACE5(( " empty\n" ));
continue;
}
/* we have computed the contents of the `fill' and `flats' tables, */
- /* now determine the reference position of the blue -- */
+ /* now determine the reference position of the blue zone -- */
/* we simply take the median value after a simple sort */
af_sort_pos( num_flats, flats );
af_sort_pos( num_fills, fills );
- if ( AF_CJK_BLUE_TOP == bb || AF_CJK_BLUE_BOTTOM == bb )
- axis = &metrics->axis[AF_DIMENSION_VERT];
- else
- axis = &metrics->axis[AF_DIMENSION_HORZ];
-
- blue = & axis->blues[axis->blue_count];
- blue_ref = & blue->ref.org;
- blue_shoot = & blue->shoot.org;
+ blue = &axis->blues[axis->blue_count];
+ blue_ref = &blue->ref.org;
+ blue_shoot = &blue->shoot.org;
axis->blue_count++;
+
if ( num_flats == 0 )
{
- *blue_ref = fills[num_fills / 2];
+ *blue_ref =
*blue_shoot = fills[num_fills / 2];
}
else if ( num_fills == 0 )
{
- *blue_ref = flats[num_flats / 2];
+ *blue_ref =
*blue_shoot = flats[num_flats / 2];
}
else
@@ -481,26 +427,34 @@
FT_Bool under_ref = FT_BOOL( shoot < ref );
- if ( ( AF_CJK_BLUE_TOP == bb ||
- AF_CJK_BLUE_RIGHT == bb ) ^ under_ref )
- *blue_shoot = *blue_ref = ( shoot + ref ) / 2;
+ /* AF_CJK_IS_TOP_BLUE covers `right' and `top' */
+ if ( AF_CJK_IS_TOP_BLUE( bs ) ^ under_ref )
+ {
+ *blue_ref =
+ *blue_shoot = ( shoot + ref ) / 2;
+
+ FT_TRACE5(( " [overshoot smaller than reference,"
+ " taking mean value]\n" ));
+ }
}
blue->flags = 0;
- if ( AF_CJK_BLUE_TOP == bb )
- blue->flags |= AF_CJK_BLUE_IS_TOP;
- else if ( AF_CJK_BLUE_RIGHT == bb )
- blue->flags |= AF_CJK_BLUE_IS_RIGHT;
+ if ( AF_CJK_IS_TOP_BLUE( bs ) )
+ blue->flags |= AF_CJK_BLUE_TOP;
- FT_TRACE5(( "-- cjk %s bluezone ref = %ld shoot = %ld\n",
- cjk_blue_name[bb], *blue_ref, *blue_shoot ));
+ FT_TRACE5(( " -> reference = %ld\n"
+ " overshoot = %ld\n",
+ *blue_ref, *blue_shoot ));
}
+ FT_TRACE5(( "\n" ));
+
return;
}
/* Basically the Latin version with type AF_CJKMetrics for metrics. */
+
FT_LOCAL_DEF( void )
af_cjk_metrics_check_digits( AF_CJKMetrics metrics,
FT_Face face )
@@ -510,8 +464,7 @@
FT_Fixed advance, old_advance = 0;
- /* check whether all ASCII digits have the same advance width; */
- /* digit `0' is 0x30 in all supported charmaps */
+ /* digit `0' is 0x30 in all supported charmaps */
for ( i = 0x30; i <= 0x39; i++ )
{
FT_UInt glyph_index;
@@ -547,6 +500,8 @@
}
+ /* Initialize global metrics. */
+
FT_LOCAL_DEF( FT_Error )
af_cjk_metrics_init( AF_CJKMetrics metrics,
FT_Face face )
@@ -556,21 +511,21 @@
metrics->units_per_em = face->units_per_EM;
- if ( FT_Select_Charmap( face, FT_ENCODING_UNICODE ) )
- face->charmap = NULL;
- else
+ if ( !FT_Select_Charmap( face, FT_ENCODING_UNICODE ) )
{
af_cjk_metrics_init_widths( metrics, face );
- af_cjk_metrics_init_blues( metrics, face, af_cjk_hani_blue_chars );
+ af_cjk_metrics_init_blues( metrics, face );
af_cjk_metrics_check_digits( metrics, face );
}
FT_Set_Charmap( face, oldmap );
-
return FT_Err_Ok;
}
+ /* Adjust scaling value, then scale and shift widths */
+ /* and blue zones (if applicable) for given dimension. */
+
static void
af_cjk_metrics_scale_dim( AF_CJKMetrics metrics,
AF_Scaler scaler,
@@ -582,8 +537,6 @@
FT_UInt nn;
- axis = &metrics->axis[dim];
-
if ( dim == AF_DIMENSION_HORZ )
{
scale = scaler->x_scale;
@@ -595,6 +548,8 @@
delta = scaler->y_delta;
}
+ axis = &metrics->axis[dim];
+
if ( axis->org_scale == scale && axis->org_delta == delta )
return;
@@ -650,12 +605,13 @@
blue->shoot.fit = blue->ref.fit - delta2;
- FT_TRACE5(( ">> active cjk blue zone %c%d[%ld/%ld]: "
- "ref: cur=%.2f fit=%.2f shoot: cur=%.2f fit=%.2f\n",
- ( dim == AF_DIMENSION_HORZ ) ? 'H' : 'V',
- nn, blue->ref.org, blue->shoot.org,
- blue->ref.cur / 64.0, blue->ref.fit / 64.0,
- blue->shoot.cur / 64.0, blue->shoot.fit / 64.0 ));
+ FT_TRACE5(( ">> active cjk blue zone %c%d[%ld/%ld]:\n"
+ " ref: cur=%.2f fit=%.2f\n"
+ " shoot: cur=%.2f fit=%.2f\n",
+ ( dim == AF_DIMENSION_HORZ ) ? 'H' : 'V',
+ nn, blue->ref.org, blue->shoot.org,
+ blue->ref.cur / 64.0, blue->ref.fit / 64.0,
+ blue->shoot.cur / 64.0, blue->shoot.fit / 64.0 ));
blue->flags |= AF_CJK_BLUE_ACTIVE;
}
@@ -663,10 +619,14 @@
}
+ /* Scale global values in both directions. */
+
FT_LOCAL_DEF( void )
af_cjk_metrics_scale( AF_CJKMetrics metrics,
AF_Scaler scaler )
{
+ /* we copy the whole structure since the x and y scaling values */
+ /* are not modified, contrary to e.g. the `latin' auto-hinter */
metrics->root.scaler = *scaler;
af_cjk_metrics_scale_dim( metrics, scaler, AF_DIMENSION_HORZ );
@@ -682,6 +642,9 @@
/*************************************************************************/
/*************************************************************************/
+
+ /* Walk over all contours and compute its segments. */
+
static FT_Error
af_cjk_hints_compute_segments( AF_GlyphHints hints,
AF_Dimension dim )
@@ -938,7 +901,7 @@
for ( seg = segments; seg < segment_limit; seg++ )
{
- AF_Edge found = 0;
+ AF_Edge found = NULL;
FT_Pos best = 0xFFFFU;
FT_Int ee;
@@ -1026,25 +989,26 @@
}
}
- /*********************************************************************/
- /* */
- /* Good, we now compute each edge's properties according to segments */
- /* found on its position. Basically, these are as follows. */
- /* */
- /* - edge's main direction */
- /* - stem edge, serif edge or both (which defaults to stem then) */
- /* - rounded edge, straight or both (which defaults to straight) */
- /* - link for edge */
- /* */
- /*********************************************************************/
+ /******************************************************************/
+ /* */
+ /* Good, we now compute each edge's properties according to the */
+ /* segments found on its position. Basically, these are */
+ /* */
+ /* - the edge's main direction */
+ /* - stem edge, serif edge or both (which defaults to stem then) */
+ /* - rounded edge, straight or both (which defaults to straight) */
+ /* - link for edge */
+ /* */
+ /******************************************************************/
- /* first of all, set the `edge' field in each segment -- this is */
- /* required in order to compute edge links */
- /* */
- /* Note that removing this loop and setting the `edge' field of each */
- /* segment directly in the code above slows down execution speed for */
- /* some reasons on platforms like the Sun. */
+ /* first of all, set the `edge' field in each segment -- this is */
+ /* required in order to compute edge links */
+ /*
+ * Note that removing this loop and setting the `edge' field of each
+ * segment directly in the code above slows down execution speed for
+ * some reasons on platforms like the Sun.
+ */
{
AF_Edge edges = axis->edges;
AF_Edge edge_limit = edges + axis->num_edges;
@@ -1153,6 +1117,8 @@
}
+ /* Detect segments and edges for given dimension. */
+
static FT_Error
af_cjk_hints_detect_features( AF_GlyphHints hints,
AF_Dimension dim )
@@ -1171,6 +1137,8 @@
}
+ /* Compute all edges which lie within blue zones. */
+
FT_LOCAL_DEF( void )
af_cjk_hints_compute_blue_edges( AF_GlyphHints hints,
AF_CJKMetrics metrics,
@@ -1218,10 +1186,8 @@
/* zone, check for left edges */
/* */
/* of course, that's for TrueType */
- is_top_right_blue =
- FT_BOOL( ( ( blue->flags & AF_CJK_BLUE_IS_TOP ) != 0 ) ||
- ( ( blue->flags & AF_CJK_BLUE_IS_RIGHT ) != 0 ) );
- is_major_dir = FT_BOOL( edge->dir == axis->major_dir );
+ is_top_right_blue = FT_BOOL( blue->flags & AF_CJK_BLUE_TOP );
+ is_major_dir = FT_BOOL( edge->dir == axis->major_dir );
/* if it is a top zone, the edge must be against the major */
/* direction; if it is a bottom zone, it must be in the major */
@@ -1258,6 +1224,8 @@
}
+ /* Initalize hinting engine. */
+
FT_LOCAL_DEF( FT_Error )
af_cjk_hints_init( AF_GlyphHints hints,
AF_CJKMetrics metrics )
@@ -1316,7 +1284,7 @@
hints->scaler_flags = scaler_flags;
hints->other_flags = other_flags;
- return 0;
+ return FT_Err_Ok;
}
@@ -1328,8 +1296,8 @@
/*************************************************************************/
/*************************************************************************/
- /* snap a given width in scaled coordinates to one of the */
- /* current standard widths */
+ /* Snap a given width in scaled coordinates to one of the */
+ /* current standard widths. */
static FT_Pos
af_cjk_snap_width( AF_Width widths,
@@ -1376,7 +1344,9 @@
}
- /* compute the snapped width of a given stem */
+ /* Compute the snapped width of a given stem. */
+ /* There is a lot of voodoo in this function; changing the hard-coded */
+ /* parameters influence the whole hinting process. */
static FT_Pos
af_cjk_compute_stem_width( AF_GlyphHints hints,
@@ -1385,8 +1355,8 @@
AF_Edge_Flags base_flags,
AF_Edge_Flags stem_flags )
{
- AF_CJKMetrics metrics = (AF_CJKMetrics) hints->metrics;
- AF_CJKAxis axis = & metrics->axis[dim];
+ AF_CJKMetrics metrics = (AF_CJKMetrics)hints->metrics;
+ AF_CJKAxis axis = &metrics->axis[dim];
FT_Pos dist = width;
FT_Int sign = 0;
FT_Bool vertical = FT_BOOL( dim == AF_DIMENSION_VERT );
@@ -1497,7 +1467,7 @@
}
- /* align one stem edge relative to the previous stem edge */
+ /* Align one stem edge relative to the previous stem edge. */
static void
af_cjk_align_linked_edge( AF_GlyphHints hints,
@@ -1517,6 +1487,9 @@
}
+ /* Shift the coordinates of the `serif' edge by the same amount */
+ /* as the corresponding `base' edge has been moved already. */
+
static void
af_cjk_align_serif_edge( AF_GlyphHints hints,
AF_Edge base,
@@ -1670,6 +1643,8 @@
}
+ /* The main grid-fitting routine. */
+
static void
af_cjk_hint_edges( AF_GlyphHints hints,
AF_Dimension dim )
@@ -1685,10 +1660,16 @@
FT_Bool has_last_stem = FALSE;
FT_Pos last_stem_pos = 0;
+#ifdef FT_DEBUG_LEVEL_TRACE
+ FT_UInt num_actions = 0;
+#endif
+
+
+ FT_TRACE5(( "cjk %s edge hinting (script `%s')\n",
+ dim == AF_DIMENSION_VERT ? "horizontal" : "vertical",
+ af_script_names[hints->metrics->script_class->script] ));
/* we begin by aligning all stems relative to the blue zone */
- FT_TRACE5(( "==== cjk hinting %s edges =====\n",
- dim == AF_DIMENSION_HORZ ? "vertical" : "horizontal" ));
if ( AF_HINTS_DO_BLUES( hints ) )
{
@@ -1719,10 +1700,14 @@
if ( !edge1 )
continue;
- FT_TRACE5(( "CJKBLUE: edge %d @%d (opos=%.2f) snapped to (%.2f), "
- "was (%.2f)\n",
- edge1-edges, edge1->fpos, edge1->opos / 64.0, blue->fit / 64.0,
- edge1->pos / 64.0 ));
+#ifdef FT_DEBUG_LEVEL_TRACE
+ FT_TRACE5(( " CJKBLUE: edge %d @%d (opos=%.2f) snapped to %.2f,"
+ " was %.2f\n",
+ edge1 - edges, edge1->fpos, edge1->opos / 64.0,
+ blue->fit / 64.0, edge1->pos / 64.0 ));
+
+ num_actions++;
+#endif
edge1->pos = blue->fit;
edge1->flags |= AF_EDGE_DONE;
@@ -1731,6 +1716,10 @@
{
af_cjk_align_linked_edge( hints, dim, edge1, edge2 );
edge2->flags |= AF_EDGE_DONE;
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+ num_actions++;
+#endif
}
if ( !anchor )
@@ -1772,6 +1761,7 @@
}
/* now align the stem */
+
/* this should not happen, but it's better to be safe */
if ( edge2->blue_edge )
{
@@ -1779,6 +1769,11 @@
af_cjk_align_linked_edge( hints, dim, edge2, edge );
edge->flags |= AF_EDGE_DONE;
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+ num_actions++;
+#endif
+
continue;
}
@@ -1786,6 +1781,11 @@
{
af_cjk_align_linked_edge( hints, dim, edge2, edge );
edge->flags |= AF_EDGE_DONE;
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+ num_actions++;
+#endif
+
/* We rarely reaches here it seems;
* usually the two edges belonging
* to one stem are marked as DONE together
@@ -1953,7 +1953,7 @@
}
if ( !skipped )
- return;
+ goto Exit;
/*
* now hint the remaining edges (serifs and single) in order
@@ -1973,7 +1973,7 @@
}
if ( !skipped )
- return;
+ goto Exit;
for ( edge = edges; edge < edge_limit; edge++ )
{
@@ -2011,6 +2011,16 @@
}
}
}
+
+ Exit:
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+ if ( !num_actions )
+ FT_TRACE5(( " (none)\n" ));
+ FT_TRACE5(( "\n" ));
+#endif
+
+ return;
}
@@ -2104,6 +2114,8 @@
}
+ /* Apply the complete hinting algorithm to a CJK glyph. */
+
FT_LOCAL_DEF( FT_Error )
af_cjk_hints_apply( AF_GlyphHints hints,
FT_Outline* outline,
@@ -2191,9 +2203,28 @@
/*************************************************************************/
+ AF_DEFINE_WRITING_SYSTEM_CLASS(
+ af_cjk_writing_system_class,
+
+ AF_WRITING_SYSTEM_CJK,
+
+ sizeof ( AF_CJKMetricsRec ),
+
+ (AF_Script_InitMetricsFunc) af_cjk_metrics_init,
+ (AF_Script_ScaleMetricsFunc)af_cjk_metrics_scale,
+ (AF_Script_DoneMetricsFunc) NULL,
+
+ (AF_Script_InitHintsFunc) af_cjk_hints_init,
+ (AF_Script_ApplyHintsFunc) af_cjk_hints_apply
+ )
+
+
/* this corresponds to Unicode 6.0 */
- static const AF_Script_UniRangeRec af_cjk_uniranges[] =
+ /* XXX: this should probably fine tuned to differentiate better between */
+ /* scripts... */
+
+ static const AF_Script_UniRangeRec af_hani_uniranges[] =
{
AF_UNIRANGE_REC( 0x1100UL, 0x11FFUL ), /* Hangul Jamo */
AF_UNIRANGE_REC( 0x2E80UL, 0x2EFFUL ), /* CJK Radicals Supplement */
@@ -2231,33 +2262,12 @@
};
- AF_DEFINE_SCRIPT_CLASS( af_cjk_script_class,
- AF_SCRIPT_CJK,
- af_cjk_uniranges,
- 0x7530, /* 田 */
-
- sizeof ( AF_CJKMetricsRec ),
-
- (AF_Script_InitMetricsFunc) af_cjk_metrics_init,
- (AF_Script_ScaleMetricsFunc)af_cjk_metrics_scale,
- (AF_Script_DoneMetricsFunc) NULL,
-
- (AF_Script_InitHintsFunc) af_cjk_hints_init,
- (AF_Script_ApplyHintsFunc) af_cjk_hints_apply
- )
-
#else /* !AF_CONFIG_OPTION_CJK */
- static const AF_Script_UniRangeRec af_cjk_uniranges[] =
- {
- AF_UNIRANGE_REC( 0UL, 0UL )
- };
+ AF_DEFINE_WRITING_SYSTEM_CLASS(
+ af_cjk_writing_system_class,
-
- AF_DEFINE_SCRIPT_CLASS( af_cjk_script_class,
- AF_SCRIPT_CJK,
- af_cjk_uniranges,
- 0,
+ AF_WRITING_SYSTEM_CJK,
sizeof ( AF_CJKMetricsRec ),
@@ -2269,7 +2279,25 @@
(AF_Script_ApplyHintsFunc) NULL
)
+
+ static const AF_Script_UniRangeRec af_hani_uniranges[] =
+ {
+ AF_UNIRANGE_REC( 0UL, 0UL )
+ };
+
#endif /* !AF_CONFIG_OPTION_CJK */
+ AF_DEFINE_SCRIPT_CLASS(
+ af_hani_script_class,
+
+ AF_SCRIPT_HANI,
+ AF_BLUE_STRINGSET_HANI,
+ AF_WRITING_SYSTEM_CJK,
+
+ af_hani_uniranges,
+ 0x7530 /* 田 */
+ )
+
+
/* END */
diff --git a/src/autofit/afcjk.h b/src/autofit/afcjk.h
index ab816f2..6f5bdc5 100644
--- a/src/autofit/afcjk.h
+++ b/src/autofit/afcjk.h
@@ -4,7 +4,7 @@
/* */
/* Auto-fitter hinting routines for CJK script (specification). */
/* */
-/* Copyright 2006, 2007, 2011, 2012 by */
+/* Copyright 2006, 2007, 2011-2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -26,39 +26,48 @@
FT_BEGIN_HEADER
- /* the CJK-specific script class */
+ /* the CJK-specific writing system */
- AF_DECLARE_SCRIPT_CLASS( af_cjk_script_class )
+ AF_DECLARE_WRITING_SYSTEM_CLASS( af_cjk_writing_system_class )
- /* CJK (global) metrics management */
+
+ /* the CJK-specific script classes */
+
+ AF_DECLARE_SCRIPT_CLASS( af_hani_script_class )
+
+
+ /*************************************************************************/
+ /*************************************************************************/
+ /***** *****/
+ /***** C J K G L O B A L M E T R I C S *****/
+ /***** *****/
+ /*************************************************************************/
+ /*************************************************************************/
+
/*
* CJK glyphs tend to fill the square. So we have both vertical and
* horizontal blue zones. But some glyphs have flat bounding strokes that
* leave some space between neighbour glyphs.
*/
- enum
- {
- AF_CJK_BLUE_TOP,
- AF_CJK_BLUE_BOTTOM,
- AF_CJK_BLUE_LEFT,
- AF_CJK_BLUE_RIGHT,
- AF_CJK_BLUE_MAX
- };
-
+#define AF_CJK_IS_TOP_BLUE( b ) \
+ ( (b)->properties & AF_BLUE_PROPERTY_CJK_TOP )
+#define AF_CJK_IS_HORIZ_BLUE( b ) \
+ ( (b)->properties & AF_BLUE_PROPERTY_CJK_HORIZ )
+#define AF_CJK_IS_FILLED_BLUE( b ) \
+ ( (b)->properties & AF_BLUE_PROPERTY_CJK_FILL )
+#define AF_CJK_IS_RIGHT_BLUE AF_CJK_IS_TOP_BLUE
#define AF_CJK_MAX_WIDTHS 16
-#define AF_CJK_MAX_BLUES AF_CJK_BLUE_MAX
enum
{
- AF_CJK_BLUE_ACTIVE = 1 << 0,
- AF_CJK_BLUE_IS_TOP = 1 << 1,
- AF_CJK_BLUE_IS_RIGHT = 1 << 2,
- AF_CJK_BLUE_ADJUSTMENT = 1 << 3, /* used for scale adjustment */
- /* optimization */
+ AF_CJK_BLUE_ACTIVE = 1 << 0, /* set if zone height is <= 3/4px */
+ AF_CJK_BLUE_TOP = 1 << 1, /* result of AF_CJK_IS_TOP_BLUE */
+ AF_CJK_BLUE_ADJUSTMENT = 1 << 2, /* used for scale adjustment */
+ /* optimization */
AF_CJK_BLUE_FLAG_MAX
};
@@ -77,16 +86,16 @@
FT_Fixed scale;
FT_Pos delta;
- FT_UInt width_count;
- AF_WidthRec widths[AF_CJK_MAX_WIDTHS];
- FT_Pos edge_distance_threshold;
- FT_Pos standard_width;
- FT_Bool extra_light;
+ FT_UInt width_count; /* number of used widths */
+ AF_WidthRec widths[AF_CJK_MAX_WIDTHS]; /* widths array */
+ FT_Pos edge_distance_threshold; /* used for creating edges */
+ FT_Pos standard_width; /* the default stem thickness */
+ FT_Bool extra_light; /* is standard width very light? */
/* used for horizontal metrics too for CJK */
FT_Bool control_overshoot;
FT_UInt blue_count;
- AF_CJKBlueRec blues[AF_CJK_BLUE_MAX];
+ AF_CJKBlueRec blues[AF_BLUE_STRINGSET_MAX];
FT_Fixed org_scale;
FT_Pos org_delta;
diff --git a/src/autofit/afdummy.c b/src/autofit/afdummy.c
index 2294455..b2b3a20 100644
--- a/src/autofit/afdummy.c
+++ b/src/autofit/afdummy.c
@@ -26,8 +26,13 @@
af_dummy_hints_init( AF_GlyphHints hints,
AF_ScriptMetrics metrics )
{
- af_glyph_hints_rescale( hints,
- metrics );
+ af_glyph_hints_rescale( hints, metrics );
+
+ hints->x_scale = metrics->scaler.x_scale;
+ hints->y_scale = metrics->scaler.y_scale;
+ hints->x_delta = metrics->scaler.x_delta;
+ hints->y_delta = metrics->scaler.y_delta;
+
return FT_Err_Ok;
}
@@ -36,17 +41,21 @@
af_dummy_hints_apply( AF_GlyphHints hints,
FT_Outline* outline )
{
- FT_UNUSED( hints );
- FT_UNUSED( outline );
+ FT_Error error;
- return FT_Err_Ok;
+
+ error = af_glyph_hints_reload( hints, outline );
+ if ( !error )
+ af_glyph_hints_save( hints, outline );
+
+ return error;
}
- AF_DEFINE_SCRIPT_CLASS( af_dummy_script_class,
- AF_SCRIPT_DUMMY,
- NULL,
- 0,
+ AF_DEFINE_WRITING_SYSTEM_CLASS(
+ af_dummy_writing_system_class,
+
+ AF_WRITING_SYSTEM_DUMMY,
sizeof ( AF_ScriptMetricsRec ),
@@ -59,4 +68,16 @@
)
+ AF_DEFINE_SCRIPT_CLASS(
+ af_none_script_class,
+
+ AF_SCRIPT_NONE,
+ (AF_Blue_Stringset)0,
+ AF_WRITING_SYSTEM_DUMMY,
+
+ NULL,
+ '\0'
+ )
+
+
/* END */
diff --git a/src/autofit/afdummy.h b/src/autofit/afdummy.h
index 95d8f8c..9a4d3c2 100644
--- a/src/autofit/afdummy.h
+++ b/src/autofit/afdummy.h
@@ -5,7 +5,7 @@
/* Auto-fitter dummy routines to be used if no hinting should be */
/* performed (specification). */
/* */
-/* Copyright 2003-2005, 2011 by */
+/* Copyright 2003-2005, 2011, 2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -25,11 +25,13 @@
FT_BEGIN_HEADER
- /* A dummy script metrics class used when no hinting should
- * be performed. This is the default for non-latin glyphs!
+ /* A dummy writing system and script class used when no hinting should be
+ * performed.
*/
- AF_DECLARE_SCRIPT_CLASS( af_dummy_script_class )
+ AF_DECLARE_WRITING_SYSTEM_CLASS( af_dummy_writing_system_class )
+
+ AF_DECLARE_SCRIPT_CLASS( af_none_script_class )
/* */
diff --git a/src/autofit/afglobal.c b/src/autofit/afglobal.c
index 3e41465..c2151af 100644
--- a/src/autofit/afglobal.c
+++ b/src/autofit/afglobal.c
@@ -17,39 +17,64 @@
#include "afglobal.h"
-#include "afdummy.h"
-#include "aflatin.h"
-#include "afcjk.h"
-#include "afindic.h"
-#include "afpic.h"
+
+ /* get writing system specific header files */
+#undef WRITING_SYSTEM
+#define WRITING_SYSTEM( ws, WS ) /* empty */
+#include "afwrtsys.h"
#include "aferrors.h"
+#include "afpic.h"
-#ifdef FT_OPTION_AUTOFIT2
-#include "aflatin2.h"
-#endif
#ifndef FT_CONFIG_OPTION_PIC
- /* when updating this table, don't forget to update */
- /* AF_SCRIPT_CLASSES_COUNT and autofit_module_class_pic_init */
+#undef WRITING_SYSTEM
+#define WRITING_SYSTEM( ws, WS ) \
+ &af_ ## ws ## _writing_system_class,
- /* populate this list when you add new scripts */
- static AF_ScriptClass const af_script_classes[] =
+ FT_LOCAL_ARRAY_DEF( AF_WritingSystemClass )
+ af_writing_system_classes[] =
{
- &af_dummy_script_class,
-#ifdef FT_OPTION_AUTOFIT2
- &af_latin2_script_class,
-#endif
- &af_latin_script_class,
- &af_cjk_script_class,
- &af_indic_script_class,
+
+#include "afwrtsys.h"
+
+ NULL /* do not remove */
+ };
+
+
+#undef SCRIPT
+#define SCRIPT( s, S, d ) \
+ &af_ ## s ## _script_class,
+
+ FT_LOCAL_ARRAY_DEF( AF_ScriptClass )
+ af_script_classes[] =
+ {
+
+#include "afscript.h"
+
NULL /* do not remove */
};
#endif /* !FT_CONFIG_OPTION_PIC */
+#ifdef FT_DEBUG_LEVEL_TRACE
+
+#undef SCRIPT
+#define SCRIPT( s, S, d ) #s,
+
+ FT_LOCAL_ARRAY_DEF( char* )
+ af_script_names[] =
+ {
+
+#include "afscript.h"
+
+ };
+
+#endif /* FT_DEBUG_LEVEL_TRACE */
+
+
/* Compute the script index of each glyph within a given face. */
static FT_Error
@@ -63,9 +88,9 @@
FT_UInt i;
- /* the value AF_SCRIPT_NONE means `uncovered glyph' */
+ /* the value AF_SCRIPT_UNASSIGNED means `uncovered glyph' */
FT_MEM_SET( globals->glyph_scripts,
- AF_SCRIPT_NONE,
+ AF_SCRIPT_UNASSIGNED,
globals->glyph_count );
error = FT_Select_Charmap( face, FT_ENCODING_UNICODE );
@@ -82,18 +107,20 @@
/* scan each script in a Unicode charmap */
for ( ss = 0; AF_SCRIPT_CLASSES_GET[ss]; ss++ )
{
- AF_ScriptClass clazz = AF_SCRIPT_CLASSES_GET[ss];
+ AF_ScriptClass script_class = AF_SCRIPT_CLASSES_GET[ss];
AF_Script_UniRange range;
- if ( clazz->script_uni_ranges == NULL )
+ if ( script_class->script_uni_ranges == NULL )
continue;
/*
* Scan all Unicode points in the range and set the corresponding
* glyph script index.
*/
- for ( range = clazz->script_uni_ranges; range->first != 0; range++ )
+ for ( range = script_class->script_uni_ranges;
+ range->first != 0;
+ range++ )
{
FT_ULong charcode = range->first;
FT_UInt gindex;
@@ -101,9 +128,9 @@
gindex = FT_Get_Char_Index( face, charcode );
- if ( gindex != 0 &&
- gindex < (FT_ULong)globals->glyph_count &&
- gscripts[gindex] == AF_SCRIPT_NONE )
+ if ( gindex != 0 &&
+ gindex < (FT_ULong)globals->glyph_count &&
+ gscripts[gindex] == AF_SCRIPT_UNASSIGNED )
gscripts[gindex] = (FT_Byte)ss;
for (;;)
@@ -113,8 +140,8 @@
if ( gindex == 0 || charcode > range->last )
break;
- if ( gindex < (FT_ULong)globals->glyph_count &&
- gscripts[gindex] == AF_SCRIPT_NONE )
+ if ( gindex < (FT_ULong)globals->glyph_count &&
+ gscripts[gindex] == AF_SCRIPT_UNASSIGNED )
gscripts[gindex] = (FT_Byte)ss;
}
}
@@ -135,16 +162,16 @@
* By default, all uncovered glyphs are set to the fallback script.
* XXX: Shouldn't we disable hinting or do something similar?
*/
- if ( globals->module->fallback_script != AF_SCRIPT_NONE )
+ if ( globals->module->fallback_script != AF_SCRIPT_UNASSIGNED )
{
FT_Long nn;
for ( nn = 0; nn < globals->glyph_count; nn++ )
{
- if ( ( gscripts[nn] & ~AF_DIGIT ) == AF_SCRIPT_NONE )
+ if ( ( gscripts[nn] & ~AF_DIGIT ) == AF_SCRIPT_UNASSIGNED )
{
- gscripts[nn] &= ~AF_SCRIPT_NONE;
+ gscripts[nn] &= ~AF_SCRIPT_UNASSIGNED;
gscripts[nn] |= globals->module->fallback_script;
}
}
@@ -204,13 +231,14 @@
{
if ( globals->metrics[nn] )
{
- AF_ScriptClass clazz = AF_SCRIPT_CLASSES_GET[nn];
+ AF_ScriptClass script_class =
+ AF_SCRIPT_CLASSES_GET[nn];
+ AF_WritingSystemClass writing_system_class =
+ AF_WRITING_SYSTEM_CLASSES_GET[script_class->writing_system];
- FT_ASSERT( globals->metrics[nn]->clazz == clazz );
-
- if ( clazz->script_metrics_done )
- clazz->script_metrics_done( globals->metrics[nn] );
+ if ( writing_system_class->script_metrics_done )
+ writing_system_class->script_metrics_done( globals->metrics[nn] );
FT_FREE( globals->metrics[nn] );
}
@@ -232,12 +260,12 @@
AF_ScriptMetrics *ametrics )
{
AF_ScriptMetrics metrics = NULL;
- FT_UInt gidx;
- AF_ScriptClass clazz;
- FT_UInt script = options & 15;
- const FT_Offset script_max = sizeof ( AF_SCRIPT_CLASSES_GET ) /
- sizeof ( AF_SCRIPT_CLASSES_GET[0] );
- FT_Error error = FT_Err_Ok;
+
+ AF_Script script = (AF_Script)( options & 15 );
+ AF_WritingSystemClass writing_system_class;
+ AF_ScriptClass script_class;
+
+ FT_Error error = FT_Err_Ok;
if ( gindex >= (FT_ULong)globals->glyph_count )
@@ -246,41 +274,44 @@
goto Exit;
}
- gidx = script;
- if ( gidx == 0 || gidx + 1 >= script_max )
- gidx = globals->glyph_scripts[gindex] & AF_SCRIPT_NONE;
+ /* if we have a forced script (via `options'), use it, */
+ /* otherwise look into `glyph_scripts' array */
+ if ( script == AF_SCRIPT_NONE || script + 1 >= AF_SCRIPT_MAX )
+ script = (AF_Script)( globals->glyph_scripts[gindex] &
+ AF_SCRIPT_UNASSIGNED );
- clazz = AF_SCRIPT_CLASSES_GET[gidx];
- if ( script == 0 )
- script = clazz->script;
+ script_class = AF_SCRIPT_CLASSES_GET[script];
+ writing_system_class = AF_WRITING_SYSTEM_CLASSES_GET
+ [script_class->writing_system];
- metrics = globals->metrics[clazz->script];
+ metrics = globals->metrics[script];
if ( metrics == NULL )
{
/* create the global metrics object if necessary */
FT_Memory memory = globals->face->memory;
- if ( FT_ALLOC( metrics, clazz->script_metrics_size ) )
+ if ( FT_ALLOC( metrics, writing_system_class->script_metrics_size ) )
goto Exit;
- metrics->clazz = clazz;
- metrics->globals = globals;
+ metrics->script_class = script_class;
+ metrics->globals = globals;
- if ( clazz->script_metrics_init )
+ if ( writing_system_class->script_metrics_init )
{
- error = clazz->script_metrics_init( metrics, globals->face );
+ error = writing_system_class->script_metrics_init( metrics,
+ globals->face );
if ( error )
{
- if ( clazz->script_metrics_done )
- clazz->script_metrics_done( metrics );
+ if ( writing_system_class->script_metrics_done )
+ writing_system_class->script_metrics_done( metrics );
FT_FREE( metrics );
goto Exit;
}
}
- globals->metrics[clazz->script] = metrics;
+ globals->metrics[script] = metrics;
}
Exit:
diff --git a/src/autofit/afglobal.h b/src/autofit/afglobal.h
index 2e24900..c01b474 100644
--- a/src/autofit/afglobal.h
+++ b/src/autofit/afglobal.h
@@ -5,7 +5,7 @@
/* Auto-fitter routines to compute global hinting values */
/* (specification). */
/* */
-/* Copyright 2003-2005, 2007, 2009, 2011-2012 by */
+/* Copyright 2003-2005, 2007, 2009, 2011-2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -28,17 +28,32 @@
FT_BEGIN_HEADER
+ FT_LOCAL_ARRAY( AF_WritingSystemClass )
+ af_writing_system_classes[];
+
+ FT_LOCAL_ARRAY( AF_ScriptClass )
+ af_script_classes[];
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+ FT_LOCAL_ARRAY( char* )
+ af_script_names[];
+#endif
+
/*
* Default values and flags for both autofitter globals (found in
* AF_ModuleRec) and face globals (in AF_FaceGlobalsRec).
*/
/* index of fallback script in `af_script_classes' */
-#define AF_SCRIPT_FALLBACK 2
+#ifdef AF_CONFIG_OPTION_CJK
+#define AF_SCRIPT_FALLBACK AF_SCRIPT_HANI
+#else
+#define AF_SCRIPT_FALLBACK AF_SCRIPT_NONE
+#endif
/* a bit mask indicating an uncovered glyph */
-#define AF_SCRIPT_NONE 0x7F
+#define AF_SCRIPT_UNASSIGNED 0x7F
/* if this flag is set, we have an ASCII digit */
-#define AF_DIGIT 0x80
+#define AF_DIGIT 0x80
/* `increase-x-height' property */
#define AF_PROP_INCREASE_X_HEIGHT_MIN 6
@@ -55,8 +70,8 @@
/*
- * Note that glyph_scripts[] is used to map each glyph into
- * an index into the `af_script_classes' array.
+ * Note that glyph_scripts[] maps each glyph to an index into the
+ * `af_script_classes' array.
*
*/
typedef struct AF_FaceGlobalsRec_
diff --git a/src/autofit/afhints.c b/src/autofit/afhints.c
index e8defaa..ce504cc 100644
--- a/src/autofit/afhints.c
+++ b/src/autofit/afhints.c
@@ -144,6 +144,17 @@
#include FT_CONFIG_STANDARD_LIBRARY_H
+ /* The dump functions are used in the `ftgrid' demo program, too. */
+#define AF_DUMP( varformat ) \
+ do \
+ { \
+ if ( to_stdout ) \
+ printf varformat; \
+ else \
+ FT_TRACE7( varformat ); \
+ } while ( 0 )
+
+
static const char*
af_dir_str( AF_Direction dir )
{
@@ -179,34 +190,35 @@
extern "C" {
#endif
void
- af_glyph_hints_dump_points( AF_GlyphHints hints )
+ af_glyph_hints_dump_points( AF_GlyphHints hints,
+ FT_Bool to_stdout )
{
AF_Point points = hints->points;
AF_Point limit = points + hints->num_points;
AF_Point point;
- FT_TRACE7(( "Table of points:\n"
- " [ index | xorg | yorg | xscale | yscale"
- " | xfit | yfit | flags ]\n" ));
+ AF_DUMP(( "Table of points:\n"
+ " [ index | xorg | yorg | xscale | yscale"
+ " | xfit | yfit | flags ]\n" ));
for ( point = points; point < limit; point++ )
- FT_TRACE7(( " [ %5d | %5d | %5d | %6.2f | %6.2f"
- " | %5.2f | %5.2f | %c%c%c%c%c%c ]\n",
- point - points,
- point->fx,
- point->fy,
- point->ox / 64.0,
- point->oy / 64.0,
- point->x / 64.0,
- point->y / 64.0,
- ( point->flags & AF_FLAG_WEAK_INTERPOLATION ) ? 'w' : ' ',
- ( point->flags & AF_FLAG_INFLECTION ) ? 'i' : ' ',
- ( point->flags & AF_FLAG_EXTREMA_X ) ? '<' : ' ',
- ( point->flags & AF_FLAG_EXTREMA_Y ) ? 'v' : ' ',
- ( point->flags & AF_FLAG_ROUND_X ) ? '(' : ' ',
- ( point->flags & AF_FLAG_ROUND_Y ) ? 'u' : ' '));
- FT_TRACE7(( "\n" ));
+ AF_DUMP(( " [ %5d | %5d | %5d | %6.2f | %6.2f"
+ " | %5.2f | %5.2f | %c%c%c%c%c%c ]\n",
+ point - points,
+ point->fx,
+ point->fy,
+ point->ox / 64.0,
+ point->oy / 64.0,
+ point->x / 64.0,
+ point->y / 64.0,
+ ( point->flags & AF_FLAG_WEAK_INTERPOLATION ) ? 'w' : ' ',
+ ( point->flags & AF_FLAG_INFLECTION ) ? 'i' : ' ',
+ ( point->flags & AF_FLAG_EXTREMA_X ) ? '<' : ' ',
+ ( point->flags & AF_FLAG_EXTREMA_Y ) ? 'v' : ' ',
+ ( point->flags & AF_FLAG_ROUND_X ) ? '(' : ' ',
+ ( point->flags & AF_FLAG_ROUND_Y ) ? 'u' : ' '));
+ AF_DUMP(( "\n" ));
}
#ifdef __cplusplus
}
@@ -247,7 +259,8 @@
extern "C" {
#endif
void
- af_glyph_hints_dump_segments( AF_GlyphHints hints )
+ af_glyph_hints_dump_segments( AF_GlyphHints hints,
+ FT_Bool to_stdout )
{
FT_Int dimension;
@@ -262,34 +275,34 @@
AF_Segment seg;
- FT_TRACE7(( "Table of %s segments:\n",
- dimension == AF_DIMENSION_HORZ ? "vertical"
- : "horizontal" ));
+ AF_DUMP(( "Table of %s segments:\n",
+ dimension == AF_DIMENSION_HORZ ? "vertical"
+ : "horizontal" ));
if ( axis->num_segments )
- FT_TRACE7(( " [ index | pos | dir | from"
- " | to | link | serif | edge"
- " | height | extra | flags ]\n" ));
+ AF_DUMP(( " [ index | pos | dir | from"
+ " | to | link | serif | edge"
+ " | height | extra | flags ]\n" ));
else
- FT_TRACE7(( " (none)\n" ));
+ AF_DUMP(( " (none)\n" ));
for ( seg = segments; seg < limit; seg++ )
- FT_TRACE7(( " [ %5d | %5.2g | %5s | %4d"
- " | %4d | %4d | %5d | %4d"
- " | %6d | %5d | %11s ]\n",
- seg - segments,
- dimension == AF_DIMENSION_HORZ
- ? (int)seg->first->ox / 64.0
- : (int)seg->first->oy / 64.0,
- af_dir_str( (AF_Direction)seg->dir ),
- AF_INDEX_NUM( seg->first, points ),
- AF_INDEX_NUM( seg->last, points ),
- AF_INDEX_NUM( seg->link, segments ),
- AF_INDEX_NUM( seg->serif, segments ),
- AF_INDEX_NUM( seg->edge, edges ),
- seg->height,
- seg->height - ( seg->max_coord - seg->min_coord ),
- af_edge_flags_to_string( (AF_Edge_Flags)seg->flags ) ));
- FT_TRACE7(( "\n" ));
+ AF_DUMP(( " [ %5d | %5.2g | %5s | %4d"
+ " | %4d | %4d | %5d | %4d"
+ " | %6d | %5d | %11s ]\n",
+ seg - segments,
+ dimension == AF_DIMENSION_HORZ
+ ? (int)seg->first->ox / 64.0
+ : (int)seg->first->oy / 64.0,
+ af_dir_str( (AF_Direction)seg->dir ),
+ AF_INDEX_NUM( seg->first, points ),
+ AF_INDEX_NUM( seg->last, points ),
+ AF_INDEX_NUM( seg->link, segments ),
+ AF_INDEX_NUM( seg->serif, segments ),
+ AF_INDEX_NUM( seg->edge, edges ),
+ seg->height,
+ seg->height - ( seg->max_coord - seg->min_coord ),
+ af_edge_flags_to_string( (AF_Edge_Flags)seg->flags ) ));
+ AF_DUMP(( "\n" ));
}
}
#ifdef __cplusplus
@@ -366,7 +379,8 @@
extern "C" {
#endif
void
- af_glyph_hints_dump_edges( AF_GlyphHints hints )
+ af_glyph_hints_dump_edges( AF_GlyphHints hints,
+ FT_Bool to_stdout )
{
FT_Int dimension;
@@ -383,94 +397,35 @@
* note: AF_DIMENSION_HORZ corresponds to _vertical_ edges
* since they have a constant X coordinate.
*/
- FT_TRACE7(( "Table of %s edges:\n",
- dimension == AF_DIMENSION_HORZ ? "vertical"
- : "horizontal" ));
+ AF_DUMP(( "Table of %s edges:\n",
+ dimension == AF_DIMENSION_HORZ ? "vertical"
+ : "horizontal" ));
if ( axis->num_edges )
- FT_TRACE7(( " [ index | pos | dir | link"
- " | serif | blue | opos | pos | flags ]\n" ));
+ AF_DUMP(( " [ index | pos | dir | link"
+ " | serif | blue | opos | pos | flags ]\n" ));
else
- FT_TRACE7(( " (none)\n" ));
+ AF_DUMP(( " (none)\n" ));
for ( edge = edges; edge < limit; edge++ )
- FT_TRACE7(( " [ %5d | %5.2g | %5s | %4d"
- " | %5d | %c | %5.2f | %5.2f | %11s ]\n",
- edge - edges,
- (int)edge->opos / 64.0,
- af_dir_str( (AF_Direction)edge->dir ),
- AF_INDEX_NUM( edge->link, edges ),
- AF_INDEX_NUM( edge->serif, edges ),
- edge->blue_edge ? 'y' : 'n',
- edge->opos / 64.0,
- edge->pos / 64.0,
- af_edge_flags_to_string( (AF_Edge_Flags)edge->flags ) ));
- FT_TRACE7(( "\n" ));
+ AF_DUMP(( " [ %5d | %5.2g | %5s | %4d"
+ " | %5d | %c | %5.2f | %5.2f | %11s ]\n",
+ edge - edges,
+ (int)edge->opos / 64.0,
+ af_dir_str( (AF_Direction)edge->dir ),
+ AF_INDEX_NUM( edge->link, edges ),
+ AF_INDEX_NUM( edge->serif, edges ),
+ edge->blue_edge ? 'y' : 'n',
+ edge->opos / 64.0,
+ edge->pos / 64.0,
+ af_edge_flags_to_string( (AF_Edge_Flags)edge->flags ) ));
+ AF_DUMP(( "\n" ));
}
}
#ifdef __cplusplus
}
#endif
-#else /* !FT_DEBUG_AUTOFIT */
-
- /* these empty stubs are only used to link the `ftgrid' test program */
- /* if debugging is disabled */
-
-#ifdef __cplusplus
- extern "C" {
-#endif
-
- void
- af_glyph_hints_dump_points( AF_GlyphHints hints )
- {
- FT_UNUSED( hints );
- }
-
-
- void
- af_glyph_hints_dump_segments( AF_GlyphHints hints )
- {
- FT_UNUSED( hints );
- }
-
-
- FT_Error
- af_glyph_hints_get_num_segments( AF_GlyphHints hints,
- FT_Int dimension,
- FT_Int* num_segments )
- {
- FT_UNUSED( hints );
- FT_UNUSED( dimension );
- FT_UNUSED( num_segments );
-
- return 0;
- }
-
-
- FT_Error
- af_glyph_hints_get_segment_offset( AF_GlyphHints hints,
- FT_Int dimension,
- FT_Int idx,
- FT_Pos* offset )
- {
- FT_UNUSED( hints );
- FT_UNUSED( dimension );
- FT_UNUSED( idx );
- FT_UNUSED( offset );
-
- return 0;
- }
-
-
- void
- af_glyph_hints_dump_edges( AF_GlyphHints hints )
- {
- FT_UNUSED( hints );
- }
-
-#ifdef __cplusplus
- }
-#endif
+#undef AF_DUMP
#endif /* !FT_DEBUG_AUTOFIT */
@@ -740,6 +695,12 @@
FT_Pos in_y = 0;
AF_Direction in_dir = AF_DIR_NONE;
+ FT_Pos last_good_in_x = 0;
+ FT_Pos last_good_in_y = 0;
+
+ FT_UInt units_per_em = hints->metrics->scaler.face->units_per_EM;
+ FT_Int near_limit = 20 * units_per_em / 2048;
+
for ( point = points; point < point_limit; point++ )
{
@@ -749,15 +710,59 @@
if ( point == first )
{
- prev = first->prev;
- in_x = first->fx - prev->fx;
- in_y = first->fy - prev->fy;
+ prev = first->prev;
+
+ in_x = first->fx - prev->fx;
+ in_y = first->fy - prev->fy;
+
+ last_good_in_x = in_x;
+ last_good_in_y = in_y;
+
+ if ( FT_ABS( in_x ) + FT_ABS( in_y ) < near_limit )
+ {
+ /* search first non-near point to get a good `in_dir' value */
+
+ AF_Point point_ = prev;
+
+
+ while ( point_ != first )
+ {
+ AF_Point prev_ = point_->prev;
+
+ FT_Pos in_x_ = point_->fx - prev_->fx;
+ FT_Pos in_y_ = point_->fy - prev_->fy;
+
+
+ if ( FT_ABS( in_x_ ) + FT_ABS( in_y_ ) >= near_limit )
+ {
+ last_good_in_x = in_x_;
+ last_good_in_y = in_y_;
+
+ break;
+ }
+
+ point_ = prev_;
+ }
+ }
+
in_dir = af_direction_compute( in_x, in_y );
first = prev + 1;
}
point->in_dir = (FT_Char)in_dir;
+ /* check whether the current point is near to the previous one */
+ /* (value 20 in `near_limit' is heuristic; we use Taxicab */
+ /* metrics for the test) */
+
+ if ( FT_ABS( in_x ) + FT_ABS( in_y ) < near_limit )
+ point->flags |= AF_FLAG_NEAR;
+ else
+ {
+ last_good_in_x = in_x;
+ last_good_in_y = in_y;
+ }
+
next = point->next;
out_x = next->fx - point->fx;
out_y = next->fy - point->fy;
@@ -765,23 +770,43 @@
in_dir = af_direction_compute( out_x, out_y );
point->out_dir = (FT_Char)in_dir;
- /* check for weak points */
+ /* Check for weak points. The remaining points not collected */
+ /* in edges are then implicitly classified as strong points. */
if ( point->flags & AF_FLAG_CONTROL )
{
+ /* control points are always weak */
Is_Weak_Point:
point->flags |= AF_FLAG_WEAK_INTERPOLATION;
}
else if ( point->out_dir == point->in_dir )
{
if ( point->out_dir != AF_DIR_NONE )
+ {
+ /* current point lies on a horizontal or */
+ /* vertical segment (but doesn't start or end it) */
goto Is_Weak_Point;
+ }
- if ( ft_corner_is_flat( in_x, in_y, out_x, out_y ) )
+ /* test whether `in' and `out' direction is approximately */
+ /* the same (and use the last good `in' vector in case */
+ /* the current point is near to the previous one) */
+ if ( ft_corner_is_flat(
+ point->flags & AF_FLAG_NEAR ? last_good_in_x : in_x,
+ point->flags & AF_FLAG_NEAR ? last_good_in_y : in_y,
+ out_x,
+ out_y ) )
+ {
+ /* current point lies on a straight, diagonal line */
+ /* (more or less) */
goto Is_Weak_Point;
+ }
}
else if ( point->in_dir == -point->out_dir )
+ {
+ /* current point forms a spike */
goto Is_Weak_Point;
+ }
in_x = out_x;
in_y = out_y;
diff --git a/src/autofit/afhints.h b/src/autofit/afhints.h
index 776b3c8..ce52325 100644
--- a/src/autofit/afhints.h
+++ b/src/autofit/afhints.h
@@ -62,15 +62,19 @@
*
* by David Turner and Werner Lemberg
*
- * http://www.tug.org/TUGboat/Articles/tb24-3/lemberg.pdf
+ * http://www.tug.org/TUGboat/Articles/tb24-3/lemberg.pdf
+ *
+ * with appropriate updates.
*
*
* Segments
*
* `af_{cjk,latin,...}_hints_compute_segments' are the functions to
- * find segments in an outline. A segment is a series of consecutive
- * points that are approximately aligned along a coordinate axis. The
- * analysis to do so is specific to a script.
+ * find segments in an outline.
+ *
+ * A segment is a series of consecutive points that are approximately
+ * aligned along a coordinate axis. The analysis to do so is specific
+ * to a writing system.
*
* A segment must have at least two points, except in the case of
* `fake' segments that are generated to hint metrics appropriately,
@@ -79,16 +83,17 @@
*
* Edges
*
+ * `af_{cjk,latin,...}_hints_compute_edges' are the functions to find
+ * edges.
+ *
* As soon as segments are defined, the auto-hinter groups them into
* edges. An edge corresponds to a single position on the main
* dimension that collects one or more segments (allowing for a small
* threshold).
*
- * The auto-hinter first tries to grid fit edges, then to align
- * segments on the edges unless it detects that they form a serif.
- *
- * `af_{cjk,latin,...}_hints_compute_edges' are the functions to find
- * edges; they are specific to a script.
+ * As an example, the `latin' writing system first tries to grid-fit
+ * edges, then to align segments on the edges unless it detects that
+ * they form a serif.
*
*
* A H
@@ -107,6 +112,8 @@
*
* Stems
*
+ * Stems are detected by `af_{cjk,latin,...}_hint_edges'.
+ *
* Segments need to be `linked' to other ones in order to detect stems.
* A stem is made of two segments that face each other in opposite
* directions and that are sufficiently close to each other. Using
@@ -127,17 +134,21 @@
* The best candidate is stored in field `link' in structure
* `AF_Segment'.
*
- * Stems are detected by `af_{cjk,latin,...}_hint_edges'.
- *
* In the above ASCII drawing, the best candidate for both AB and CD is
* GH, while the best candidate for GH is AB. Similarly, the best
* candidate for EF and GH is AB, while the best candidate for AB is
* GH.
*
+ * The detection and handling of stems is dependent on the writing
+ * system.
+ *
*
* Serifs
*
- * On the opposite, a serif has
+ * Serifs are detected by `af_{cjk,latin,...}_hint_edges'.
+ *
+ * In comparison to a stem, a serif (as handled by the auto-hinter
+ * module which takes care of the `latin' writing system) has
*
* best segment_1 = segment_2 && best segment_2 != segment_1
*
@@ -147,8 +158,6 @@
* The best candidate is stored in field `serif' in structure
* `AF_Segment' (and `link' is set to NULL).
*
- * Serifs are detected by `af_{cjk,latin,...}_hint_edges'.
- *
*
* Touched points
*
@@ -178,7 +187,8 @@
* differ greatly)
*
* - inflection points (i.e., where the `in' and `out' angles are the
- * same, but the curvature changes sign)
+ * same, but the curvature changes sign) [currently, such points
+ * aren't handled in the auto-hinter]
*
* `af_glyph_hints_align_strong_points' is the function which takes
* care of such situations; it is equivalent to the TrueType `IP'
@@ -226,7 +236,10 @@
AF_FLAG_WEAK_INTERPOLATION = 1 << 8,
/* all inflection points in the outline have this flag set */
- AF_FLAG_INFLECTION = 1 << 9
+ AF_FLAG_INFLECTION = 1 << 9,
+
+ /* the current point is very near to another one */
+ AF_FLAG_NEAR = 1 << 10
} AF_Flags;
diff --git a/src/autofit/afindic.c b/src/autofit/afindic.c
index 8c24972..ef8299f 100644
--- a/src/autofit/afindic.c
+++ b/src/autofit/afindic.c
@@ -97,26 +97,10 @@
/*************************************************************************/
- static const AF_Script_UniRangeRec af_indic_uniranges[] =
- {
-#if 0
- AF_UNIRANGE_REC( 0x0100UL, 0xFFFFUL ), /* why this? */
-#endif
- AF_UNIRANGE_REC( 0x0900UL, 0x0DFFUL), /* Indic Range */
- AF_UNIRANGE_REC( 0x0F00UL, 0x0FFFUL), /* Tibetan */
- AF_UNIRANGE_REC( 0x1900UL, 0x194FUL), /* Limbu */
- AF_UNIRANGE_REC( 0x1B80UL, 0x1BBFUL), /* Sundanese */
- AF_UNIRANGE_REC( 0x1C80UL, 0x1CDFUL), /* Meetei Mayak */
- AF_UNIRANGE_REC( 0xA800UL, 0xA82FUL), /* Syloti Nagri */
- AF_UNIRANGE_REC( 0x11800UL, 0x118DFUL), /* Sharada */
- AF_UNIRANGE_REC( 0UL, 0UL)
- };
+ AF_DEFINE_WRITING_SYSTEM_CLASS(
+ af_indic_writing_system_class,
-
- AF_DEFINE_SCRIPT_CLASS( af_indic_script_class,
- AF_SCRIPT_INDIC,
- af_indic_uniranges,
- 'o', /* XXX */
+ AF_WRITING_SYSTEM_INDIC,
sizeof ( AF_CJKMetricsRec ),
@@ -128,18 +112,28 @@
(AF_Script_ApplyHintsFunc) af_indic_hints_apply
)
-#else /* !AF_CONFIG_OPTION_INDIC */
+ /* XXX: this should probably fine tuned to differentiate better between */
+ /* scripts... */
- static const AF_Script_UniRangeRec af_indic_uniranges[] =
+ static const AF_Script_UniRangeRec af_deva_uniranges[] =
{
- { 0, 0 }
+ AF_UNIRANGE_REC( 0x0900UL, 0x0DFFUL ), /* Indic Range */
+ AF_UNIRANGE_REC( 0x0F00UL, 0x0FFFUL ), /* Tibetan */
+ AF_UNIRANGE_REC( 0x1900UL, 0x194FUL ), /* Limbu */
+ AF_UNIRANGE_REC( 0x1B80UL, 0x1BBFUL ), /* Sundanese */
+ AF_UNIRANGE_REC( 0x1C80UL, 0x1CDFUL ), /* Meetei Mayak */
+ AF_UNIRANGE_REC( 0xA800UL, 0xA82FUL ), /* Syloti Nagri */
+ AF_UNIRANGE_REC( 0x11800UL, 0x118DFUL ), /* Sharada */
+ AF_UNIRANGE_REC( 0UL, 0UL )
};
- AF_DEFINE_SCRIPT_CLASS( af_indic_script_class,
- AF_SCRIPT_INDIC,
- af_indic_uniranges,
- 0,
+#else /* !AF_CONFIG_OPTION_INDIC */
+
+ AF_DEFINE_WRITING_SYSTEM_CLASS(
+ af_indic_writing_system_class,
+
+ AF_WRITING_SYSTEM_INDIC,
sizeof ( AF_CJKMetricsRec ),
@@ -151,7 +145,25 @@
(AF_Script_ApplyHintsFunc) NULL
)
+
+ static const AF_Script_UniRangeRec af_deva_uniranges[] =
+ {
+ AF_UNIRANGE_REC( 0UL, 0UL )
+ };
+
#endif /* !AF_CONFIG_OPTION_INDIC */
+ AF_DEFINE_SCRIPT_CLASS(
+ af_deva_script_class,
+
+ AF_SCRIPT_DEVA,
+ (AF_Blue_Stringset)0, /* XXX */
+ AF_WRITING_SYSTEM_INDIC,
+
+ af_deva_uniranges,
+ 'o' /* XXX */
+ )
+
+
/* END */
diff --git a/src/autofit/afindic.h b/src/autofit/afindic.h
index c252cf2..db38e96 100644
--- a/src/autofit/afindic.h
+++ b/src/autofit/afindic.h
@@ -4,7 +4,7 @@
/* */
/* Auto-fitter hinting routines for Indic scripts (specification). */
/* */
-/* Copyright 2007, 2012 by */
+/* Copyright 2007, 2012, 2013 by */
/* Rahul Bhalerao <rahul.bhalerao@redhat.com>, <b.rahul.pm@gmail.com>. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -25,9 +25,14 @@
FT_BEGIN_HEADER
- /* the Indic-specific script class */
+ /* the `indic' writing system */
- AF_DECLARE_SCRIPT_CLASS( af_indic_script_class )
+ AF_DECLARE_WRITING_SYSTEM_CLASS( af_indic_writing_system_class )
+
+
+ /* the indic-specific script classes */
+
+ AF_DECLARE_SCRIPT_CLASS( af_deva_script_class )
/* */
diff --git a/src/autofit/aflatin.c b/src/autofit/aflatin.c
index ef0157a..15a241e 100644
--- a/src/autofit/aflatin.c
+++ b/src/autofit/aflatin.c
@@ -60,8 +60,11 @@
AF_GlyphHintsRec hints[1];
- FT_TRACE5(( "standard widths computation\n"
- "===========================\n\n" ));
+ FT_TRACE5(( "\n"
+ "latin standard widths computation (script `%s')\n"
+ "=================================================\n"
+ "\n",
+ af_script_names[metrics->root.script_class->script] ));
af_glyph_hints_init( hints, face->memory );
@@ -76,13 +79,14 @@
AF_Scaler scaler = &dummy->root.scaler;
- glyph_index = FT_Get_Char_Index( face,
- metrics->root.clazz->standard_char );
+ glyph_index = FT_Get_Char_Index(
+ face,
+ metrics->root.script_class->standard_char );
if ( glyph_index == 0 )
goto Exit;
- FT_TRACE5(( "standard character: 0x%X (glyph index %d)\n",
- metrics->root.clazz->standard_char, glyph_index ));
+ FT_TRACE5(( "standard character: U+%04lX (glyph index %d)\n",
+ metrics->root.script_class->standard_char, glyph_index ));
error = FT_Load_Glyph( face, glyph_index, FT_LOAD_NO_SCALE );
if ( error || face->glyph->outline.n_points <= 0 )
@@ -146,22 +150,21 @@
}
/* this also replaces multiple almost identical stem widths */
- /* with a single one (the value 100 is heuristic) */
+ /* with a single one (the value 100 is heuristic) */
af_sort_and_quantize_widths( &num_widths, axis->widths,
dummy->units_per_em / 100 );
axis->width_count = num_widths;
}
- Exit:
+ Exit:
for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ )
{
AF_LatinAxis axis = &metrics->axis[dim];
FT_Pos stdw;
- stdw = ( axis->width_count > 0 )
- ? axis->widths[0].org
- : AF_LATIN_CONSTANT( metrics, 50 );
+ stdw = ( axis->width_count > 0 ) ? axis->widths[0].org
+ : AF_LATIN_CONSTANT( metrics, 50 );
/* let's try 20% of the smallest width */
axis->edge_distance_threshold = stdw / 5;
@@ -193,22 +196,6 @@
}
-
-#define AF_LATIN_MAX_TEST_CHARACTERS 12
-
-
- static const char af_latin_blue_chars[AF_LATIN_MAX_BLUES]
- [AF_LATIN_MAX_TEST_CHARACTERS + 1] =
- {
- "THEZOCQS",
- "HEZLOCUS",
- "fijkdbh",
- "xzroesc",
- "xzroesc",
- "pqgjy"
- };
-
-
/* Find all blue zones. Flat segments give the reference points, */
/* round segments the overshoot positions. */
@@ -216,39 +203,80 @@
af_latin_metrics_init_blues( AF_LatinMetrics metrics,
FT_Face face )
{
- FT_Pos flats [AF_LATIN_MAX_TEST_CHARACTERS];
- FT_Pos rounds[AF_LATIN_MAX_TEST_CHARACTERS];
+ FT_Pos flats [AF_BLUE_STRING_MAX_LEN];
+ FT_Pos rounds[AF_BLUE_STRING_MAX_LEN];
+
FT_Int num_flats;
FT_Int num_rounds;
- FT_Int bb;
+
AF_LatinBlue blue;
FT_Error error;
- AF_LatinAxis axis = &metrics->axis[AF_DIMENSION_VERT];
+ AF_LatinAxis axis = &metrics->axis[AF_DIMENSION_VERT];
FT_Outline outline;
+ AF_Blue_Stringset bss = metrics->root.script_class->blue_stringset;
+ const AF_Blue_StringRec* bs = &af_blue_stringsets[bss];
- /* we compute the blues simply by loading each character from the */
- /* `af_latin_blue_chars[blues]' string, then finding its top-most or */
- /* bottom-most points (depending on `AF_IS_TOP_BLUE') */
- FT_TRACE5(( "blue zones computation\n"
- "======================\n\n" ));
+ /* we walk over the blue character strings as specified in the */
+ /* script's entry in the `af_blue_stringset' array */
- for ( bb = 0; bb < AF_LATIN_BLUE_MAX; bb++ )
+ FT_TRACE5(( "latin blue zones computation\n"
+ "============================\n"
+ "\n" ));
+
+ for ( ; bs->string != AF_BLUE_STRING_MAX; bs++ )
{
- const char* p = af_latin_blue_chars[bb];
- const char* limit = p + AF_LATIN_MAX_TEST_CHARACTERS;
+ const char* p = &af_blue_strings[bs->string];
FT_Pos* blue_ref;
FT_Pos* blue_shoot;
- FT_TRACE5(( "blue zone %d:\n", bb ));
+#ifdef FT_DEBUG_LEVEL_TRACE
+ {
+ FT_Bool have_flag = 0;
+
+
+ FT_TRACE5(( "blue zone %d", axis->blue_count ));
+
+ if ( bs->properties )
+ {
+ FT_TRACE5(( " (" ));
+
+ if ( AF_LATIN_IS_TOP_BLUE( bs ) )
+ {
+ FT_TRACE5(( "top" ));
+ have_flag = 1;
+ }
+
+ if ( AF_LATIN_IS_X_HEIGHT_BLUE( bs ) )
+ {
+ if ( have_flag )
+ FT_TRACE5(( ", " ));
+ FT_TRACE5(( "small top" ));
+ have_flag = 1;
+ }
+
+ if ( AF_LATIN_IS_LONG_BLUE( bs ) )
+ {
+ if ( have_flag )
+ FT_TRACE5(( ", " ));
+ FT_TRACE5(( "long" ));
+ }
+
+ FT_TRACE5(( ")" ));
+ }
+
+ FT_TRACE5(( ":\n" ));
+ }
+#endif /* FT_DEBUG_LEVEL_TRACE */
num_flats = 0;
num_rounds = 0;
- for ( ; p < limit && *p; p++ )
+ while ( *p )
{
+ FT_ULong ch;
FT_UInt glyph_index;
FT_Pos best_y; /* same as points.y */
FT_Int best_point, best_contour_first, best_contour_last;
@@ -256,15 +284,23 @@
FT_Bool round = 0;
+ GET_UTF8_CHAR( ch, p );
+
/* load the character in the face -- skip unknown or empty ones */
- glyph_index = FT_Get_Char_Index( face, (FT_UInt)*p );
+ glyph_index = FT_Get_Char_Index( face, ch );
if ( glyph_index == 0 )
+ {
+ FT_TRACE5(( " U+%04lX unavailable\n", ch ));
continue;
+ }
error = FT_Load_Glyph( face, glyph_index, FT_LOAD_NO_SCALE );
outline = face->glyph->outline;
if ( error || outline.n_points <= 0 )
+ {
+ FT_TRACE5(( " U+%04lX contains no outlines\n", ch ));
continue;
+ }
/* now compute min or max point indices and coordinates */
points = outline.points;
@@ -289,11 +325,11 @@
/* Avoid single-point contours since they are never rasterized. */
/* In some fonts, they correspond to mark attachment points */
- /* which are way outside of the glyph's real outline. */
+ /* that are way outside of the glyph's real outline. */
if ( last <= first )
continue;
- if ( AF_LATIN_IS_TOP_BLUE( bb ) )
+ if ( AF_LATIN_IS_TOP_BLUE( bs ) )
{
for ( pp = first; pp <= last; pp++ )
if ( best_point < 0 || points[pp].y > best_y )
@@ -318,7 +354,6 @@
best_contour_last = last;
}
}
- FT_TRACE5(( " %c %ld", *p, best_y ));
}
/* now check whether the point belongs to a straight or round */
@@ -328,10 +363,14 @@
{
FT_Pos best_x = points[best_point].x;
FT_Int prev, next;
+ FT_Int best_segment_first, best_segment_last;
FT_Int best_on_point_first, best_on_point_last;
FT_Pos dist;
+ best_segment_first = best_point;
+ best_segment_last = best_point;
+
if ( FT_CURVE_TAG( outline.tags[best_point] ) == FT_CURVE_TAG_ON )
{
best_on_point_first = best_point;
@@ -343,8 +382,9 @@
best_on_point_last = -1;
}
- /* look for the previous and next points that are not on the */
- /* same Y coordinate, then threshold the `closeness'... */
+ /* look for the previous and next points on the contour */
+ /* that are not on the same Y coordinate, then threshold */
+ /* the `closeness'... */
prev = best_point;
next = prev;
@@ -362,6 +402,8 @@
if ( FT_ABS( points[prev].x - best_x ) <= 20 * dist )
break;
+ best_segment_first = prev;
+
if ( FT_CURVE_TAG( outline.tags[prev] ) == FT_CURVE_TAG_ON )
{
best_on_point_first = prev;
@@ -383,6 +425,8 @@
if ( FT_ABS( points[next].x - best_x ) <= 20 * dist )
break;
+ best_segment_last = next;
+
if ( FT_CURVE_TAG( outline.tags[next] ) == FT_CURVE_TAG_ON )
{
best_on_point_last = next;
@@ -392,8 +436,186 @@
} while ( next != best_point );
- /* now set the `round' flag depending on the segment's kind */
- /* (value 8 is heuristic) */
+ if ( AF_LATIN_IS_LONG_BLUE( bs ) )
+ {
+ /* If this flag is set, we have an additional constraint to */
+ /* get the blue zone distance: Find a segment of the topmost */
+ /* (or bottommost) contour that is longer than a heuristic */
+ /* threshold. This ensures that small bumps in the outline */
+ /* are ignored (for example, the `vertical serifs' found in */
+ /* many Hebrew glyph designs). */
+
+ /* If this segment is long enough, we are done. Otherwise, */
+ /* search the segment next to the extremum that is long */
+ /* enough, has the same direction, and a not too large */
+ /* vertical distance from the extremum. Note that the */
+ /* algorithm doesn't check whether the found segment is */
+ /* actually the one (vertically) nearest to the extremum. */
+
+ /* heuristic threshold value */
+ FT_Pos length_threshold = metrics->units_per_em / 25;
+
+
+ dist = FT_ABS( points[best_segment_last].x -
+ points[best_segment_first].x );
+
+ if ( dist < length_threshold &&
+ best_segment_last - best_segment_first + 2 <=
+ best_contour_last - best_contour_first )
+ {
+ /* heuristic threshold value */
+ FT_Pos height_threshold = metrics->units_per_em / 4;
+
+ FT_Int first;
+ FT_Int last;
+ FT_Bool hit;
+
+ FT_Bool left2right;
+
+
+ /* compute direction */
+ prev = best_point;
+
+ do
+ {
+ if ( prev > best_contour_first )
+ prev--;
+ else
+ prev = best_contour_last;
+
+ if ( points[prev].x != best_x )
+ break;
+
+ } while ( prev != best_point );
+
+ /* skip glyph for the degenerate case */
+ if ( prev == best_point )
+ continue;
+
+ left2right = FT_BOOL( points[prev].x < points[best_point].x );
+
+ first = best_segment_last;
+ last = first;
+ hit = 0;
+
+ do
+ {
+ FT_Bool l2r;
+ FT_Pos d;
+ FT_Int p_first, p_last;
+
+
+ if ( !hit )
+ {
+ /* no hit; adjust first point */
+ first = last;
+
+ /* also adjust first and last on point */
+ if ( FT_CURVE_TAG( outline.tags[first] ) ==
+ FT_CURVE_TAG_ON )
+ {
+ p_first = first;
+ p_last = first;
+ }
+ else
+ {
+ p_first = -1;
+ p_last = -1;
+ }
+
+ hit = 1;
+ }
+
+ if ( last < best_contour_last )
+ last++;
+ else
+ last = best_contour_first;
+
+ if ( FT_ABS( best_y - points[first].y ) > height_threshold )
+ {
+ /* vertical distance too large */
+ hit = 0;
+ continue;
+ }
+
+ /* same test as above */
+ dist = FT_ABS( points[last].y - points[first].y );
+ if ( dist > 5 )
+ if ( FT_ABS( points[last].x - points[first].x ) <=
+ 20 * dist )
+ {
+ hit = 0;
+ continue;
+ }
+
+ if ( FT_CURVE_TAG( outline.tags[last] ) == FT_CURVE_TAG_ON )
+ {
+ p_last = last;
+ if ( p_first < 0 )
+ p_first = last;
+ }
+
+ l2r = FT_BOOL( points[first].x < points[last].x );
+ d = FT_ABS( points[last].x - points[first].x );
+
+ if ( l2r == left2right &&
+ d >= length_threshold )
+ {
+ /* all constraints are met; update segment after finding */
+ /* its end */
+ do
+ {
+ if ( last < best_contour_last )
+ last++;
+ else
+ last = best_contour_first;
+
+ d = FT_ABS( points[last].y - points[first].y );
+ if ( d > 5 )
+ if ( FT_ABS( points[next].x - points[first].x ) <=
+ 20 * dist )
+ {
+ last--;
+ break;
+ }
+
+ p_last = last;
+
+ if ( FT_CURVE_TAG( outline.tags[last] ) ==
+ FT_CURVE_TAG_ON )
+ {
+ p_last = last;
+ if ( p_first < 0 )
+ p_first = last;
+ }
+
+ } while ( last != best_segment_first );
+
+ best_y = points[first].y;
+
+ best_segment_first = first;
+ best_segment_last = last;
+
+ best_on_point_first = p_first;
+ best_on_point_last = p_last;
+
+ break;
+ }
+
+ } while ( last != best_segment_first );
+ }
+ }
+
+ FT_TRACE5(( " U+%04lX: best_y = %5ld", ch, best_y ));
+
+ /* now set the `round' flag depending on the segment's kind: */
+ /* */
+ /* - if the horizontal distance between the first and last */
+ /* `on' point is larger than upem/8 (value 8 is heuristic) */
+ /* we have a flat segment */
+ /* - if either the first or the last point of the segment is */
+ /* an `off' point, the segment is round, otherwise it is */
+ /* flat */
if ( best_on_point_first >= 0 &&
best_on_point_last >= 0 &&
(FT_UInt)( FT_ABS( points[best_on_point_last].x -
@@ -402,8 +624,10 @@
round = 0;
else
round = FT_BOOL(
- FT_CURVE_TAG( outline.tags[prev] ) != FT_CURVE_TAG_ON ||
- FT_CURVE_TAG( outline.tags[next] ) != FT_CURVE_TAG_ON );
+ FT_CURVE_TAG( outline.tags[best_segment_first] ) !=
+ FT_CURVE_TAG_ON ||
+ FT_CURVE_TAG( outline.tags[best_segment_last] ) !=
+ FT_CURVE_TAG_ON );
FT_TRACE5(( " (%s)\n", round ? "round" : "flat" ));
}
@@ -448,7 +672,7 @@
}
else
{
- *blue_ref = flats[num_flats / 2];
+ *blue_ref = flats [num_flats / 2];
*blue_shoot = rounds[num_rounds / 2];
}
@@ -462,7 +686,7 @@
FT_Bool over_ref = FT_BOOL( shoot > ref );
- if ( AF_LATIN_IS_TOP_BLUE( bb ) ^ over_ref )
+ if ( AF_LATIN_IS_TOP_BLUE( bs ) ^ over_ref )
{
*blue_ref =
*blue_shoot = ( shoot + ref ) / 2;
@@ -473,7 +697,7 @@
}
blue->flags = 0;
- if ( AF_LATIN_IS_TOP_BLUE( bb ) )
+ if ( AF_LATIN_IS_TOP_BLUE( bs ) )
blue->flags |= AF_LATIN_BLUE_TOP;
/*
@@ -481,7 +705,7 @@
* in order to optimize the pixel grid alignment of the top of small
* letters.
*/
- if ( bb == AF_LATIN_BLUE_SMALL_TOP )
+ if ( AF_LATIN_IS_X_HEIGHT_BLUE( bs ) )
blue->flags |= AF_LATIN_BLUE_ADJUSTMENT;
FT_TRACE5(( " -> reference = %ld\n"
@@ -650,7 +874,20 @@
else
#endif
if ( dim == AF_DIMENSION_VERT )
+ {
scale = FT_MulDiv( scale, fitted, scaled );
+
+ FT_TRACE5((
+ "af_latin_metrics_scale_dim:"
+ " x height alignment (script `%s'):\n"
+ " "
+ " vertical scaling changed from %.4f to %.4f (by %d%%)\n"
+ "\n",
+ af_script_names[metrics->root.script_class->script],
+ axis->org_scale / 65536.0,
+ scale / 65536.0,
+ ( fitted - scaled ) * 100 / scaled ));
+ }
}
}
}
@@ -669,6 +906,10 @@
metrics->root.scaler.y_delta = delta;
}
+ FT_TRACE5(( "%s widths (script `%s')\n",
+ dim == AF_DIMENSION_HORZ ? "horizontal" : "vertical",
+ af_script_names[metrics->root.script_class->script] ));
+
/* scale the widths */
for ( nn = 0; nn < axis->width_count; nn++ )
{
@@ -677,15 +918,31 @@
width->cur = FT_MulFix( width->org, scale );
width->fit = width->cur;
+
+ FT_TRACE5(( " %d scaled to %.2f\n",
+ width->org,
+ width->cur / 64.0 ));
}
+ FT_TRACE5(( "\n" ));
+
/* an extra-light axis corresponds to a standard width that is */
/* smaller than 5/8 pixels */
axis->extra_light =
(FT_Bool)( FT_MulFix( axis->standard_width, scale ) < 32 + 8 );
+#ifdef FT_DEBUG_LEVEL_TRACE
+ if ( axis->extra_light )
+ FT_TRACE5(( "`%s' script is extra light (at current resolution)\n"
+ "\n",
+ af_script_names[metrics->root.script_class->script] ));
+#endif
+
if ( dim == AF_DIMENSION_VERT )
{
+ FT_TRACE5(( "blue zones (script `%s')\n",
+ af_script_names[metrics->root.script_class->script] ));
+
/* scale the blue zones */
for ( nn = 0; nn < axis->blue_count; nn++ )
{
@@ -757,6 +1014,19 @@
#endif
blue->flags |= AF_LATIN_BLUE_ACTIVE;
+
+ FT_TRACE5(( " reference %d: %d scaled to %.2f%s\n"
+ " overshoot %d: %d scaled to %.2f%s\n",
+ nn,
+ blue->ref.org,
+ blue->ref.fit / 64.0,
+ blue->flags & AF_LATIN_BLUE_ACTIVE ? ""
+ : " (inactive)",
+ nn,
+ blue->shoot.org,
+ blue->shoot.fit / 64.0,
+ blue->flags & AF_LATIN_BLUE_ACTIVE ? ""
+ : " (inactive)" ));
}
}
}
@@ -1654,8 +1924,8 @@
AF_Edge_Flags base_flags,
AF_Edge_Flags stem_flags )
{
- AF_LatinMetrics metrics = (AF_LatinMetrics) hints->metrics;
- AF_LatinAxis axis = & metrics->axis[dim];
+ AF_LatinMetrics metrics = (AF_LatinMetrics)hints->metrics;
+ AF_LatinAxis axis = &metrics->axis[dim];
FT_Pos dist = width;
FT_Int sign = 0;
FT_Int vertical = ( dim == AF_DIMENSION_VERT );
@@ -1878,8 +2148,9 @@
#endif
- FT_TRACE5(( "%s edge hinting\n",
- dim == AF_DIMENSION_VERT ? "horizontal" : "vertical" ));
+ FT_TRACE5(( "latin %s edge hinting (script `%s')\n",
+ dim == AF_DIMENSION_VERT ? "horizontal" : "vertical",
+ af_script_names[hints->metrics->script_class->script] ));
/* we begin by aligning all stems relative to the blue zone */
/* if needed -- that's only for horizontal edges */
@@ -2414,6 +2685,7 @@
af_glyph_hints_align_weak_points( hints, (AF_Dimension)dim );
}
}
+
af_glyph_hints_save( hints, outline );
Exit:
@@ -2430,47 +2702,10 @@
/*************************************************************************/
- /* XXX: this should probably fine tuned to differentiate better between */
- /* scripts... */
+ AF_DEFINE_WRITING_SYSTEM_CLASS(
+ af_latin_writing_system_class,
- static const AF_Script_UniRangeRec af_latin_uniranges[] =
- {
- AF_UNIRANGE_REC( 0x0020UL, 0x007FUL ), /* Basic Latin (no control chars) */
- AF_UNIRANGE_REC( 0x00A0UL, 0x00FFUL ), /* Latin-1 Supplement (no control chars) */
- AF_UNIRANGE_REC( 0x0100UL, 0x017FUL ), /* Latin Extended-A */
- AF_UNIRANGE_REC( 0x0180UL, 0x024FUL ), /* Latin Extended-B */
- AF_UNIRANGE_REC( 0x0250UL, 0x02AFUL ), /* IPA Extensions */
- AF_UNIRANGE_REC( 0x02B0UL, 0x02FFUL ), /* Spacing Modifier Letters */
- AF_UNIRANGE_REC( 0x0300UL, 0x036FUL ), /* Combining Diacritical Marks */
- AF_UNIRANGE_REC( 0x0370UL, 0x03FFUL ), /* Greek and Coptic */
- AF_UNIRANGE_REC( 0x0400UL, 0x04FFUL ), /* Cyrillic */
- AF_UNIRANGE_REC( 0x0500UL, 0x052FUL ), /* Cyrillic Supplement */
- AF_UNIRANGE_REC( 0x1D00UL, 0x1D7FUL ), /* Phonetic Extensions */
- AF_UNIRANGE_REC( 0x1D80UL, 0x1DBFUL ), /* Phonetic Extensions Supplement */
- AF_UNIRANGE_REC( 0x1DC0UL, 0x1DFFUL ), /* Combining Diacritical Marks Supplement */
- AF_UNIRANGE_REC( 0x1E00UL, 0x1EFFUL ), /* Latin Extended Additional */
- AF_UNIRANGE_REC( 0x1F00UL, 0x1FFFUL ), /* Greek Extended */
- AF_UNIRANGE_REC( 0x2000UL, 0x206FUL ), /* General Punctuation */
- AF_UNIRANGE_REC( 0x2070UL, 0x209FUL ), /* Superscripts and Subscripts */
- AF_UNIRANGE_REC( 0x20A0UL, 0x20CFUL ), /* Currency Symbols */
- AF_UNIRANGE_REC( 0x2150UL, 0x218FUL ), /* Number Forms */
- AF_UNIRANGE_REC( 0x2460UL, 0x24FFUL ), /* Enclosed Alphanumerics */
- AF_UNIRANGE_REC( 0x2C60UL, 0x2C7FUL ), /* Latin Extended-C */
- AF_UNIRANGE_REC( 0x2DE0UL, 0x2DFFUL ), /* Cyrillic Extended-A */
- AF_UNIRANGE_REC( 0x2E00UL, 0x2E7FUL ), /* Supplemental Punctuation */
- AF_UNIRANGE_REC( 0xA640UL, 0xA69FUL ), /* Cyrillic Extended-B */
- AF_UNIRANGE_REC( 0xA720UL, 0xA7FFUL ), /* Latin Extended-D */
- AF_UNIRANGE_REC( 0xFB00UL, 0xFB06UL ), /* Alphab. Present. Forms (Latin Ligs) */
- AF_UNIRANGE_REC( 0x1D400UL, 0x1D7FFUL ), /* Mathematical Alphanumeric Symbols */
- AF_UNIRANGE_REC( 0x1F100UL, 0x1F1FFUL ), /* Enclosed Alphanumeric Supplement */
- AF_UNIRANGE_REC( 0UL, 0UL )
- };
-
-
- AF_DEFINE_SCRIPT_CLASS( af_latin_script_class,
- AF_SCRIPT_LATIN,
- af_latin_uniranges,
- 'o',
+ AF_WRITING_SYSTEM_LATIN,
sizeof ( AF_LatinMetricsRec ),
@@ -2483,4 +2718,103 @@
)
+ /* XXX: this should probably fine tuned to differentiate better between */
+ /* scripts... */
+
+ static const AF_Script_UniRangeRec af_latn_uniranges[] =
+ {
+ AF_UNIRANGE_REC( 0x0020UL, 0x007FUL ), /* Basic Latin (no control chars) */
+ AF_UNIRANGE_REC( 0x00A0UL, 0x00FFUL ), /* Latin-1 Supplement (no control chars) */
+ AF_UNIRANGE_REC( 0x0100UL, 0x017FUL ), /* Latin Extended-A */
+ AF_UNIRANGE_REC( 0x0180UL, 0x024FUL ), /* Latin Extended-B */
+ AF_UNIRANGE_REC( 0x0250UL, 0x02AFUL ), /* IPA Extensions */
+ AF_UNIRANGE_REC( 0x02B0UL, 0x02FFUL ), /* Spacing Modifier Letters */
+ AF_UNIRANGE_REC( 0x0300UL, 0x036FUL ), /* Combining Diacritical Marks */
+ AF_UNIRANGE_REC( 0x1D00UL, 0x1D7FUL ), /* Phonetic Extensions */
+ AF_UNIRANGE_REC( 0x1D80UL, 0x1DBFUL ), /* Phonetic Extensions Supplement */
+ AF_UNIRANGE_REC( 0x1DC0UL, 0x1DFFUL ), /* Combining Diacritical Marks Supplement */
+ AF_UNIRANGE_REC( 0x1E00UL, 0x1EFFUL ), /* Latin Extended Additional */
+ AF_UNIRANGE_REC( 0x2000UL, 0x206FUL ), /* General Punctuation */
+ AF_UNIRANGE_REC( 0x2070UL, 0x209FUL ), /* Superscripts and Subscripts */
+ AF_UNIRANGE_REC( 0x20A0UL, 0x20CFUL ), /* Currency Symbols */
+ AF_UNIRANGE_REC( 0x2150UL, 0x218FUL ), /* Number Forms */
+ AF_UNIRANGE_REC( 0x2460UL, 0x24FFUL ), /* Enclosed Alphanumerics */
+ AF_UNIRANGE_REC( 0x2C60UL, 0x2C7FUL ), /* Latin Extended-C */
+ AF_UNIRANGE_REC( 0x2E00UL, 0x2E7FUL ), /* Supplemental Punctuation */
+ AF_UNIRANGE_REC( 0xA720UL, 0xA7FFUL ), /* Latin Extended-D */
+ AF_UNIRANGE_REC( 0xFB00UL, 0xFB06UL ), /* Alphab. Present. Forms (Latin Ligs) */
+ AF_UNIRANGE_REC( 0x1D400UL, 0x1D7FFUL ), /* Mathematical Alphanumeric Symbols */
+ AF_UNIRANGE_REC( 0x1F100UL, 0x1F1FFUL ), /* Enclosed Alphanumeric Supplement */
+ AF_UNIRANGE_REC( 0UL, 0UL )
+ };
+
+ static const AF_Script_UniRangeRec af_grek_uniranges[] =
+ {
+ AF_UNIRANGE_REC( 0x0370UL, 0x03FFUL ), /* Greek and Coptic */
+ AF_UNIRANGE_REC( 0x1F00UL, 0x1FFFUL ), /* Greek Extended */
+ AF_UNIRANGE_REC( 0UL, 0UL )
+ };
+
+ static const AF_Script_UniRangeRec af_cyrl_uniranges[] =
+ {
+ AF_UNIRANGE_REC( 0x0400UL, 0x04FFUL ), /* Cyrillic */
+ AF_UNIRANGE_REC( 0x0500UL, 0x052FUL ), /* Cyrillic Supplement */
+ AF_UNIRANGE_REC( 0x2DE0UL, 0x2DFFUL ), /* Cyrillic Extended-A */
+ AF_UNIRANGE_REC( 0xA640UL, 0xA69FUL ), /* Cyrillic Extended-B */
+ AF_UNIRANGE_REC( 0UL, 0UL )
+ };
+
+ static const AF_Script_UniRangeRec af_hebr_uniranges[] =
+ {
+ AF_UNIRANGE_REC( 0x0590UL, 0x05FFUL ), /* Hebrew */
+ AF_UNIRANGE_REC( 0xFB1DUL, 0xFB4FUL ), /* Alphab. Present. Forms (Hebrew) */
+ AF_UNIRANGE_REC( 0UL, 0UL )
+ };
+
+
+ AF_DEFINE_SCRIPT_CLASS(
+ af_latn_script_class,
+
+ AF_SCRIPT_LATN,
+ AF_BLUE_STRINGSET_LATN,
+ AF_WRITING_SYSTEM_LATIN,
+
+ af_latn_uniranges,
+ 'o'
+ )
+
+ AF_DEFINE_SCRIPT_CLASS(
+ af_grek_script_class,
+
+ AF_SCRIPT_GREK,
+ AF_BLUE_STRINGSET_GREK,
+ AF_WRITING_SYSTEM_LATIN,
+
+ af_grek_uniranges,
+ 0x3BF /* ο */
+ )
+
+ AF_DEFINE_SCRIPT_CLASS(
+ af_cyrl_script_class,
+
+ AF_SCRIPT_CYRL,
+ AF_BLUE_STRINGSET_CYRL,
+ AF_WRITING_SYSTEM_LATIN,
+
+ af_cyrl_uniranges,
+ 0x43E /* о */
+ )
+
+ AF_DEFINE_SCRIPT_CLASS(
+ af_hebr_script_class,
+
+ AF_SCRIPT_HEBR,
+ AF_BLUE_STRINGSET_HEBR,
+ AF_WRITING_SYSTEM_LATIN,
+
+ af_hebr_uniranges,
+ 0x5DD /* ם */
+ )
+
+
/* END */
diff --git a/src/autofit/aflatin.h b/src/autofit/aflatin.h
index d9170b3..c06cbd9 100644
--- a/src/autofit/aflatin.h
+++ b/src/autofit/aflatin.h
@@ -4,7 +4,7 @@
/* */
/* Auto-fitter hinting routines for latin script (specification). */
/* */
-/* Copyright 2003-2007, 2009, 2011-2012 by */
+/* Copyright 2003-2007, 2009, 2011-2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -24,10 +24,20 @@
FT_BEGIN_HEADER
+ /* the `latin' writing system */
- /* the latin-specific script class */
+ AF_DECLARE_WRITING_SYSTEM_CLASS( af_latin_writing_system_class )
- AF_DECLARE_SCRIPT_CLASS( af_latin_script_class )
+
+ /* the latin-specific script classes */
+
+ AF_DECLARE_SCRIPT_CLASS( af_cyrl_script_class )
+ AF_DECLARE_SCRIPT_CLASS( af_grek_script_class )
+ AF_DECLARE_SCRIPT_CLASS( af_latn_script_class )
+ AF_DECLARE_SCRIPT_CLASS( af_hebr_script_class )
+#if 0
+ AF_DECLARE_SCRIPT_CLASS( af_armn_script_class )
+#endif
/* constants are given with units_per_em == 2048 in mind */
@@ -51,27 +61,14 @@
*/
- /* Latin (global) metrics management */
-
- enum
- {
- AF_LATIN_BLUE_CAPITAL_TOP,
- AF_LATIN_BLUE_CAPITAL_BOTTOM,
- AF_LATIN_BLUE_SMALL_F_TOP,
- AF_LATIN_BLUE_SMALL_TOP,
- AF_LATIN_BLUE_SMALL_BOTTOM,
- AF_LATIN_BLUE_SMALL_MINOR,
-
- AF_LATIN_BLUE_MAX
- };
-
-
-#define AF_LATIN_IS_TOP_BLUE( b ) ( (b) == AF_LATIN_BLUE_CAPITAL_TOP || \
- (b) == AF_LATIN_BLUE_SMALL_F_TOP || \
- (b) == AF_LATIN_BLUE_SMALL_TOP )
+#define AF_LATIN_IS_TOP_BLUE( b ) \
+ ( (b)->properties & AF_BLUE_PROPERTY_LATIN_TOP )
+#define AF_LATIN_IS_X_HEIGHT_BLUE( b ) \
+ ( (b)->properties & AF_BLUE_PROPERTY_LATIN_X_HEIGHT )
+#define AF_LATIN_IS_LONG_BLUE( b ) \
+ ( (b)->properties & AF_BLUE_PROPERTY_LATIN_LONG )
#define AF_LATIN_MAX_WIDTHS 16
-#define AF_LATIN_MAX_BLUES AF_LATIN_BLUE_MAX
enum
@@ -106,7 +103,7 @@
/* ignored for horizontal metrics */
FT_UInt blue_count;
- AF_LatinBlueRec blues[AF_LATIN_BLUE_MAX];
+ AF_LatinBlueRec blues[AF_BLUE_STRINGSET_MAX];
FT_Fixed org_scale;
FT_Pos org_delta;
diff --git a/src/autofit/aflatin2.c b/src/autofit/aflatin2.c
index b1e9658..a6d564a 100644
--- a/src/autofit/aflatin2.c
+++ b/src/autofit/aflatin2.c
@@ -76,8 +76,9 @@
AF_Scaler scaler = &dummy->root.scaler;
- glyph_index = FT_Get_Char_Index( face,
- metrics->root.clazz->standard_char );
+ glyph_index = FT_Get_Char_Index(
+ face,
+ metrics->root.script_class->standard_char );
if ( glyph_index == 0 )
goto Exit;
@@ -409,11 +410,11 @@
blue->flags |= AF_LATIN_BLUE_TOP;
/*
- * The following flags is used later to adjust the y and x scales
+ * The following flag is used later to adjust the y and x scales
* in order to optimize the pixel grid alignment of the top of small
* letters.
*/
- if ( bb == AF_LATIN_BLUE_SMALL_TOP )
+ if ( AF_LATIN_IS_X_HEIGHT_BLUE( bb ) )
blue->flags |= AF_LATIN_BLUE_ADJUSTMENT;
FT_TRACE5(( " -> reference = %ld\n"
@@ -2379,18 +2380,10 @@
/*************************************************************************/
- static const AF_Script_UniRangeRec af_latin2_uniranges[] =
- {
- AF_UNIRANGE_REC( 32UL, 127UL ), /* TODO: Add new Unicode ranges here! */
- AF_UNIRANGE_REC( 160UL, 255UL ),
- AF_UNIRANGE_REC( 0UL, 0UL )
- };
+ AF_DEFINE_WRITING_SYSTEM_CLASS(
+ af_latin2_writing_system_class,
-
- AF_DEFINE_SCRIPT_CLASS( af_latin2_script_class,
- AF_SCRIPT_LATIN2,
- af_latin2_uniranges,
- 'o',
+ AF_WRITING_SYSTEM_LATIN2,
sizeof ( AF_LatinMetricsRec ),
@@ -2403,4 +2396,53 @@
)
+ /* XXX: this should probably fine tuned to differentiate better between */
+ /* scripts... */
+
+ static const AF_Script_UniRangeRec af_ltn2_uniranges[] =
+ {
+ AF_UNIRANGE_REC( 0x0020UL, 0x007FUL ), /* Basic Latin (no control chars) */
+ AF_UNIRANGE_REC( 0x00A0UL, 0x00FFUL ), /* Latin-1 Supplement (no control chars) */
+ AF_UNIRANGE_REC( 0x0100UL, 0x017FUL ), /* Latin Extended-A */
+ AF_UNIRANGE_REC( 0x0180UL, 0x024FUL ), /* Latin Extended-B */
+ AF_UNIRANGE_REC( 0x0250UL, 0x02AFUL ), /* IPA Extensions */
+ AF_UNIRANGE_REC( 0x02B0UL, 0x02FFUL ), /* Spacing Modifier Letters */
+ AF_UNIRANGE_REC( 0x0300UL, 0x036FUL ), /* Combining Diacritical Marks */
+ AF_UNIRANGE_REC( 0x0370UL, 0x03FFUL ), /* Greek and Coptic */
+ AF_UNIRANGE_REC( 0x0400UL, 0x04FFUL ), /* Cyrillic */
+ AF_UNIRANGE_REC( 0x0500UL, 0x052FUL ), /* Cyrillic Supplement */
+ AF_UNIRANGE_REC( 0x1D00UL, 0x1D7FUL ), /* Phonetic Extensions */
+ AF_UNIRANGE_REC( 0x1D80UL, 0x1DBFUL ), /* Phonetic Extensions Supplement */
+ AF_UNIRANGE_REC( 0x1DC0UL, 0x1DFFUL ), /* Combining Diacritical Marks Supplement */
+ AF_UNIRANGE_REC( 0x1E00UL, 0x1EFFUL ), /* Latin Extended Additional */
+ AF_UNIRANGE_REC( 0x1F00UL, 0x1FFFUL ), /* Greek Extended */
+ AF_UNIRANGE_REC( 0x2000UL, 0x206FUL ), /* General Punctuation */
+ AF_UNIRANGE_REC( 0x2070UL, 0x209FUL ), /* Superscripts and Subscripts */
+ AF_UNIRANGE_REC( 0x20A0UL, 0x20CFUL ), /* Currency Symbols */
+ AF_UNIRANGE_REC( 0x2150UL, 0x218FUL ), /* Number Forms */
+ AF_UNIRANGE_REC( 0x2460UL, 0x24FFUL ), /* Enclosed Alphanumerics */
+ AF_UNIRANGE_REC( 0x2C60UL, 0x2C7FUL ), /* Latin Extended-C */
+ AF_UNIRANGE_REC( 0x2DE0UL, 0x2DFFUL ), /* Cyrillic Extended-A */
+ AF_UNIRANGE_REC( 0x2E00UL, 0x2E7FUL ), /* Supplemental Punctuation */
+ AF_UNIRANGE_REC( 0xA640UL, 0xA69FUL ), /* Cyrillic Extended-B */
+ AF_UNIRANGE_REC( 0xA720UL, 0xA7FFUL ), /* Latin Extended-D */
+ AF_UNIRANGE_REC( 0xFB00UL, 0xFB06UL ), /* Alphab. Present. Forms (Latin Ligs) */
+ AF_UNIRANGE_REC( 0x1D400UL, 0x1D7FFUL ), /* Mathematical Alphanumeric Symbols */
+ AF_UNIRANGE_REC( 0x1F100UL, 0x1F1FFUL ), /* Enclosed Alphanumeric Supplement */
+ AF_UNIRANGE_REC( 0UL, 0UL )
+ };
+
+
+ AF_DEFINE_SCRIPT_CLASS(
+ af_ltn2_script_class,
+
+ AF_SCRIPT_LTN2,
+ AF_BLUE_STRINGSET_LATN,
+ AF_WRITING_SYSTEM_LATIN2,
+
+ af_ltn2_uniranges,
+ 'o'
+ )
+
+
/* END */
diff --git a/src/autofit/aflatin2.h b/src/autofit/aflatin2.h
index cbfa395..f7f6d8d 100644
--- a/src/autofit/aflatin2.h
+++ b/src/autofit/aflatin2.h
@@ -4,7 +4,7 @@
/* */
/* Auto-fitter hinting routines for latin script (specification). */
/* */
-/* Copyright 2003-2007, 2012 by */
+/* Copyright 2003-2007, 2012, 2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -25,9 +25,21 @@
FT_BEGIN_HEADER
- /* the latin-specific script class */
+ /* the `latin' writing system */
- AF_DECLARE_SCRIPT_CLASS( af_latin2_script_class )
+ AF_DECLARE_WRITING_SYSTEM_CLASS( af_latin2_writing_system_class )
+
+
+ /* the latin-specific script classes */
+
+ AF_DECLARE_SCRIPT_CLASS( af_ltn2_script_class ) /* XXX */
+#if 0
+ AF_DECLARE_SCRIPT_CLASS( af_arm2_script_class )
+ AF_DECLARE_SCRIPT_CLASS( af_cyr2_script_class )
+ AF_DECLARE_SCRIPT_CLASS( af_grk2_script_class )
+ AF_DECLARE_SCRIPT_CLASS( af_hbr2_script_class )
+#endif
+
/* */
diff --git a/src/autofit/afloader.c b/src/autofit/afloader.c
index 17a6fb7..400b01e 100644
--- a/src/autofit/afloader.c
+++ b/src/autofit/afloader.c
@@ -21,6 +21,7 @@
#include "afhints.h"
#include "aferrors.h"
#include "afmodule.h"
+#include "afpic.h"
/* Initialize glyph loader. */
@@ -180,10 +181,20 @@
/* now load the slot image into the auto-outline and run the */
/* automatic hinting process */
- if ( metrics->clazz->script_hints_apply )
- metrics->clazz->script_hints_apply( hints,
- &gloader->current.outline,
- metrics );
+ {
+#ifdef FT_CONFIG_OPTION_PIC
+ AF_FaceGlobals globals = loader->globals;
+#endif
+ AF_WritingSystemClass writing_system_class =
+ AF_WRITING_SYSTEM_CLASSES_GET
+ [metrics->script_class->writing_system];
+
+
+ if ( writing_system_class->script_hints_apply )
+ writing_system_class->script_hints_apply( hints,
+ &gloader->current.outline,
+ metrics );
+ }
/* we now need to adjust the metrics according to the change in */
/* width/positioning that occurred during the hinting process */
@@ -519,33 +530,41 @@
if ( !error )
{
AF_ScriptMetrics metrics;
- FT_UInt options = 0;
+ FT_UInt options = AF_SCRIPT_NONE;
#ifdef FT_OPTION_AUTOFIT2
- /* XXX: undocumented hook to activate the latin2 hinter */
+ /* XXX: undocumented hook to activate the latin2 writing system */
if ( load_flags & ( 1UL << 20 ) )
- options = 2;
+ options = AF_SCRIPT_LTN2;
#endif
error = af_face_globals_get_metrics( loader->globals, gindex,
options, &metrics );
if ( !error )
{
+#ifdef FT_CONFIG_OPTION_PIC
+ AF_FaceGlobals globals = loader->globals;
+#endif
+ AF_WritingSystemClass writing_system_class =
+ AF_WRITING_SYSTEM_CLASSES_GET
+ [metrics->script_class->writing_system];
+
+
loader->metrics = metrics;
- if ( metrics->clazz->script_metrics_scale )
- metrics->clazz->script_metrics_scale( metrics, &scaler );
+ if ( writing_system_class->script_metrics_scale )
+ writing_system_class->script_metrics_scale( metrics, &scaler );
else
metrics->scaler = scaler;
load_flags |= FT_LOAD_NO_SCALE | FT_LOAD_IGNORE_TRANSFORM;
load_flags &= ~FT_LOAD_RENDER;
- if ( metrics->clazz->script_hints_init )
+ if ( writing_system_class->script_hints_init )
{
- error = metrics->clazz->script_hints_init( &loader->hints,
- metrics );
+ error = writing_system_class->script_hints_init( &loader->hints,
+ metrics );
if ( error )
goto Exit;
}
diff --git a/src/autofit/afpic.c b/src/autofit/afpic.c
index 45e1448..92d696d 100644
--- a/src/autofit/afpic.c
+++ b/src/autofit/afpic.c
@@ -43,13 +43,10 @@
/* forward declaration of PIC init functions from script classes */
-#include "aflatin.h"
-#ifdef FT_OPTION_AUTOFIT2
-#include "aflatin2.h"
-#endif
-#include "afcjk.h"
-#include "afdummy.h"
-#include "afindic.h"
+#undef WRITING_SYSTEM
+#define WRITING_SYSTEM( ws, WS ) /* empty */
+
+#include "afwrtsys.h"
void
@@ -100,27 +97,31 @@
FT_Init_Class_af_service_properties( &container->af_service_properties );
- for ( ss = 0 ; ss < AF_SCRIPT_CLASSES_REC_COUNT ; ss++ )
- {
+ for ( ss = 0; ss < AF_WRITING_SYSTEM_MAX - 1; ss++ )
+ container->af_writing_system_classes[ss] =
+ &container->af_writing_system_classes_rec[ss];
+ container->af_writing_system_classes[AF_WRITING_SYSTEM_MAX - 1] = NULL;
+
+ for ( ss = 0; ss < AF_SCRIPT_MAX - 1; ss++ )
container->af_script_classes[ss] =
&container->af_script_classes_rec[ss];
- }
- container->af_script_classes[AF_SCRIPT_CLASSES_COUNT - 1] = NULL;
+ container->af_script_classes[AF_SCRIPT_MAX - 1] = NULL;
- /* add call to initialization function when you add new scripts */
+#undef WRITING_SYSTEM
+#define WRITING_SYSTEM( ws, WS ) \
+ FT_Init_Class_af_ ## ws ## _writing_system_class( \
+ &container->af_writing_system_classes_rec[ss++] );
+
ss = 0;
- FT_Init_Class_af_dummy_script_class(
- &container->af_script_classes_rec[ss++] );
-#ifdef FT_OPTION_AUTOFIT2
- FT_Init_Class_af_latin2_script_class(
- &container->af_script_classes_rec[ss++] );
-#endif
- FT_Init_Class_af_latin_script_class(
- &container->af_script_classes_rec[ss++] );
- FT_Init_Class_af_cjk_script_class(
- &container->af_script_classes_rec[ss++] );
- FT_Init_Class_af_indic_script_class(
- &container->af_script_classes_rec[ss++] );
+#include "afwrtsys.h"
+
+#undef SCRIPT
+#define SCRIPT( s, S, d ) \
+ FT_Init_Class_af_ ## s ## _script_class( \
+ &container->af_script_classes_rec[ss++] );
+
+ ss = 0;
+#include "afscript.h"
FT_Init_Class_af_autofitter_interface(
library, &container->af_autofitter_interface );
diff --git a/src/autofit/afpic.h b/src/autofit/afpic.h
index 0acf803..09f8258 100644
--- a/src/autofit/afpic.h
+++ b/src/autofit/afpic.h
@@ -4,7 +4,7 @@
/* */
/* The FreeType position independent code services for autofit module. */
/* */
-/* Copyright 2009, 2011-2012 by */
+/* Copyright 2009, 2011-2013 by */
/* Oran Agra and Mickey Gabel. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -27,11 +27,12 @@
#ifndef FT_CONFIG_OPTION_PIC
-#define AF_SERVICES_GET af_services
-#define AF_SERVICE_PROPERTIES_GET af_service_properties
+#define AF_SERVICES_GET af_services
+#define AF_SERVICE_PROPERTIES_GET af_service_properties
-#define AF_SCRIPT_CLASSES_GET af_script_classes
-#define AF_INTERFACE_GET af_autofitter_interface
+#define AF_WRITING_SYSTEM_CLASSES_GET af_writing_system_classes
+#define AF_SCRIPT_CLASSES_GET af_script_classes
+#define AF_INTERFACE_GET af_autofitter_interface
#else /* FT_CONFIG_OPTION_PIC */
@@ -40,24 +41,22 @@
#include "aftypes.h"
- /* increase these when you add new scripts, */
- /* and update autofit_module_class_pic_init */
-#ifdef FT_OPTION_AUTOFIT2
-#define AF_SCRIPT_CLASSES_COUNT 6
-#else
-#define AF_SCRIPT_CLASSES_COUNT 5
-#endif
-
-#define AF_SCRIPT_CLASSES_REC_COUNT ( AF_SCRIPT_CLASSES_COUNT - 1 )
-
typedef struct AFModulePIC_
{
FT_ServiceDescRec* af_services;
FT_Service_PropertiesRec af_service_properties;
- AF_ScriptClass af_script_classes[AF_SCRIPT_CLASSES_COUNT];
- AF_ScriptClassRec af_script_classes_rec[AF_SCRIPT_CLASSES_REC_COUNT];
+ AF_WritingSystemClass af_writing_system_classes
+ [AF_WRITING_SYSTEM_MAX];
+ AF_WritingSystemClassRec af_writing_system_classes_rec
+ [AF_WRITING_SYSTEM_MAX - 1];
+
+ AF_ScriptClass af_script_classes
+ [AF_SCRIPT_MAX];
+ AF_ScriptClassRec af_script_classes_rec
+ [AF_SCRIPT_MAX - 1];
+
FT_AutoHinter_InterfaceRec af_autofitter_interface;
} AFModulePIC;
@@ -71,6 +70,8 @@
#define AF_SERVICE_PROPERTIES_GET \
( GET_PIC( library )->af_service_properties )
+#define AF_WRITING_SYSTEM_CLASSES_GET \
+ ( GET_PIC( FT_FACE_LIBRARY( globals->face ) )->af_writing_system_classes )
#define AF_SCRIPT_CLASSES_GET \
( GET_PIC( FT_FACE_LIBRARY( globals->face ) )->af_script_classes )
#define AF_INTERFACE_GET \
diff --git a/src/autofit/afscript.h b/src/autofit/afscript.h
new file mode 100644
index 0000000..32ec2ca
--- /dev/null
+++ b/src/autofit/afscript.h
@@ -0,0 +1,37 @@
+/***************************************************************************/
+/* */
+/* afscript.h */
+/* */
+/* Auto-fitter scripts (specification only). */
+/* */
+/* Copyright 2013 by */
+/* David Turner, Robert Wilhelm, and Werner Lemberg. */
+/* */
+/* This file is part of the FreeType project, and may only be used, */
+/* modified, and distributed under the terms of the FreeType project */
+/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
+/* this file you indicate that you have read the license and */
+/* understand and accept it fully. */
+/* */
+/***************************************************************************/
+
+
+ /* The following part can be included multiple times. */
+ /* Define `SCRIPT' as needed. */
+
+
+ /* Add new scripts here. */
+
+ SCRIPT( cyrl, CYRL, "Cyrillic" )
+ SCRIPT( deva, DEVA, "Indic scripts" )
+ SCRIPT( none, NONE, "no script" )
+ SCRIPT( grek, GREK, "Greek" )
+ SCRIPT( hani, HANI, "CJKV ideographs" )
+ SCRIPT( hebr, HEBR, "Hebrew" )
+ SCRIPT( latn, LATN, "Latin" )
+#ifdef FT_OPTION_AUTOFIT2
+ SCRIPT( ltn2, LTN2, "Latin 2" )
+#endif
+
+
+/* END */
diff --git a/src/autofit/aftypes.h b/src/autofit/aftypes.h
index 9acd7ad..cda1f89 100644
--- a/src/autofit/aftypes.h
+++ b/src/autofit/aftypes.h
@@ -4,7 +4,7 @@
/* */
/* Auto-fitter types (specification only). */
/* */
-/* Copyright 2003-2009, 2011-2012 by */
+/* Copyright 2003-2009, 2011-2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -20,15 +20,12 @@
*
* The auto-fitter is a complete rewrite of the old auto-hinter.
* Its main feature is the ability to differentiate between different
- * scripts in order to apply language-specific rules.
+ * writing systems in order to apply script-specific rules.
*
* The code has also been compartmentized into several entities that
* should make algorithmic experimentation easier than with the old
* code.
*
- * Finally, we get rid of the Catharon license, since this code is
- * released under the FreeType one.
- *
*************************************************************************/
@@ -42,6 +39,8 @@
#include FT_INTERNAL_OBJECTS_H
#include FT_INTERNAL_DEBUG_H
+#include "afblue.h"
+
FT_BEGIN_HEADER
@@ -201,56 +200,21 @@
/*************************************************************************/
/*************************************************************************/
/***** *****/
- /***** S C R I P T S *****/
+ /***** S C R I P T M E T R I C S *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
- /*
- * The list of known scripts. Each different script corresponds to the
- * following information:
- *
- * - A set of Unicode ranges to test whether the face supports the
- * script.
- *
- * - A specific global analyzer that will compute global metrics
- * specific to the script.
- *
- * - A specific glyph analyzer that will compute segments and
- * edges for each glyph covered by the script.
- *
- * - A specific grid-fitting algorithm that will distort the
- * scaled glyph outline according to the results of the glyph
- * analyzer.
- *
- * Note that a given analyzer and/or grid-fitting algorithm can be
- * used by more than one script.
- */
+ /* This is the main structure which combines writing systems and script */
+ /* data (for a given face object, see below). */
- typedef enum AF_Script_
- {
- AF_SCRIPT_DUMMY = 0,
- AF_SCRIPT_LATIN = 1,
- AF_SCRIPT_CJK = 2,
- AF_SCRIPT_INDIC = 3,
-#ifdef FT_OPTION_AUTOFIT2
- AF_SCRIPT_LATIN2 = 4,
-#endif
-
- /* add new scripts here. Don't forget to update the list in */
- /* `afglobal.c'. */
-
- AF_SCRIPT_MAX /* do not remove */
-
- } AF_Script;
-
-
- typedef struct AF_ScriptClassRec_ const* AF_ScriptClass;
- typedef struct AF_FaceGlobalsRec_* AF_FaceGlobals;
+ typedef struct AF_WritingSystemClassRec_ const* AF_WritingSystemClass;
+ typedef struct AF_ScriptClassRec_ const* AF_ScriptClass;
+ typedef struct AF_FaceGlobalsRec_* AF_FaceGlobals;
typedef struct AF_ScriptMetricsRec_
{
- AF_ScriptClass clazz;
+ AF_ScriptClass script_class;
AF_ScalerRec scaler;
FT_Bool digits_have_same_width;
@@ -284,23 +248,54 @@
AF_ScriptMetrics metrics );
- typedef struct AF_Script_UniRangeRec_
+ /*************************************************************************/
+ /*************************************************************************/
+ /***** *****/
+ /***** W R I T I N G S Y S T E M S *****/
+ /***** *****/
+ /*************************************************************************/
+ /*************************************************************************/
+
+ /*
+ * In FreeType, a writing system consists of multiple scripts which can
+ * be handled similarly *in a typographical way*; the relationship is not
+ * based on history. For example, both the Greek and the unrelated
+ * Armenian scripts share the same features like ascender, descender,
+ * x-height, etc. Essentially, a writing system is covered by a
+ * submodule of the auto-fitter; it contains
+ *
+ * - a specific global analyzer which computes global metrics specific to
+ * the script (based on script-specific characters to identify ascender
+ * height, x-height, etc.),
+ *
+ * - a specific glyph analyzer that computes segments and edges for each
+ * glyph covered by the script,
+ *
+ * - a specific grid-fitting algorithm that distorts the scaled glyph
+ * outline according to the results of the glyph analyzer.
+ */
+
+#define __AFWRTSYS_H__ /* don't load header files */
+#undef WRITING_SYSTEM
+#define WRITING_SYSTEM( ws, WS ) \
+ AF_WRITING_SYSTEM_ ## WS,
+
+ /* The list of known writing systems. */
+ typedef enum AF_WritingSystem_
{
- FT_UInt32 first;
- FT_UInt32 last;
- } AF_Script_UniRangeRec;
+#include "afwrtsys.h"
-#define AF_UNIRANGE_REC( a, b ) { (FT_UInt32)(a), (FT_UInt32)(b) }
+ AF_WRITING_SYSTEM_MAX /* do not remove */
- typedef const AF_Script_UniRangeRec *AF_Script_UniRange;
+ } AF_WritingSystem;
+
+#undef __AFWRTSYS_H__
- typedef struct AF_ScriptClassRec_
+ typedef struct AF_WritingSystemClassRec_
{
- AF_Script script;
- AF_Script_UniRange script_uni_ranges; /* last must be { 0, 0 } */
- FT_UInt32 standard_char; /* for default width and height */
+ AF_WritingSystem writing_system;
FT_Offset script_metrics_size;
AF_Script_InitMetricsFunc script_metrics_init;
@@ -310,59 +305,167 @@
AF_Script_InitHintsFunc script_hints_init;
AF_Script_ApplyHintsFunc script_hints_apply;
+ } AF_WritingSystemClassRec;
+
+
+ /*************************************************************************/
+ /*************************************************************************/
+ /***** *****/
+ /***** S C R I P T S *****/
+ /***** *****/
+ /*************************************************************************/
+ /*************************************************************************/
+
+ /*
+ * Each script is associated with a set of Unicode ranges which gets used
+ * to test whether the font face supports the script. It also references
+ * the writing system it belongs to.
+ *
+ * We use four-letter script tags from the OpenType specification.
+ */
+
+#undef SCRIPT
+#define SCRIPT( s, S, d ) \
+ AF_SCRIPT_ ## S,
+
+ /* The list of known scripts. */
+ typedef enum AF_Script_
+ {
+
+#include "afscript.h"
+
+ AF_SCRIPT_MAX /* do not remove */
+
+ } AF_Script;
+
+
+ typedef struct AF_Script_UniRangeRec_
+ {
+ FT_UInt32 first;
+ FT_UInt32 last;
+
+ } AF_Script_UniRangeRec;
+
+#define AF_UNIRANGE_REC( a, b ) { (FT_UInt32)(a), (FT_UInt32)(b) }
+
+ typedef const AF_Script_UniRangeRec* AF_Script_UniRange;
+
+
+ typedef struct AF_ScriptClassRec_
+ {
+ AF_Script script;
+ AF_Blue_Stringset blue_stringset;
+ AF_WritingSystem writing_system;
+
+ AF_Script_UniRange script_uni_ranges; /* last must be { 0, 0 } */
+ FT_UInt32 standard_char; /* for default width and height */
+
} AF_ScriptClassRec;
/* Declare and define vtables for classes */
#ifndef FT_CONFIG_OPTION_PIC
+#define AF_DECLARE_WRITING_SYSTEM_CLASS( writing_system_class ) \
+ FT_CALLBACK_TABLE const AF_WritingSystemClassRec \
+ writing_system_class;
+
+#define AF_DEFINE_WRITING_SYSTEM_CLASS( \
+ writing_system_class, \
+ system, \
+ m_size, \
+ m_init, \
+ m_scale, \
+ m_done, \
+ h_init, \
+ h_apply ) \
+ FT_CALLBACK_TABLE_DEF \
+ const AF_WritingSystemClassRec writing_system_class = \
+ { \
+ system, \
+ \
+ m_size, \
+ \
+ m_init, \
+ m_scale, \
+ m_done, \
+ \
+ h_init, \
+ h_apply \
+ };
+
+
#define AF_DECLARE_SCRIPT_CLASS( script_class ) \
FT_CALLBACK_TABLE const AF_ScriptClassRec \
script_class;
-#define AF_DEFINE_SCRIPT_CLASS( script_class, script_, ranges, def_char, \
- m_size, \
- m_init, m_scale, m_done, h_init, h_apply ) \
- FT_CALLBACK_TABLE_DEF const AF_ScriptClassRec script_class = \
- { \
- script_, \
- ranges, \
- def_char, \
- \
- m_size, \
- \
- m_init, \
- m_scale, \
- m_done, \
- \
- h_init, \
- h_apply \
+#define AF_DEFINE_SCRIPT_CLASS( \
+ script_class, \
+ script_, \
+ blue_stringset_, \
+ writing_system_, \
+ ranges, \
+ std_char ) \
+ FT_CALLBACK_TABLE_DEF \
+ const AF_ScriptClassRec script_class = \
+ { \
+ script_, \
+ blue_stringset_, \
+ writing_system_, \
+ ranges, \
+ std_char \
};
#else /* FT_CONFIG_OPTION_PIC */
+#define AF_DECLARE_WRITING_SYSTEM_CLASS( writing_system_class ) \
+ FT_LOCAL( void ) \
+ FT_Init_Class_ ## writing_system_class( AF_WritingSystemClassRec* ac );
+
+#define AF_DEFINE_WRITING_SYSTEM_CLASS( \
+ writing_system_class, \
+ system, \
+ m_size, \
+ m_init, \
+ m_scale, \
+ m_done, \
+ h_init, \
+ h_apply ) \
+ FT_LOCAL_DEF( void ) \
+ FT_Init_Class_ ## writing_system_class( AF_WritingSystemClassRec* ac ) \
+ { \
+ ac->writing_system = system; \
+ \
+ ac->script_metrics_size = m_size; \
+ \
+ ac->script_metrics_init = m_init; \
+ ac->script_metrics_scale = m_scale; \
+ ac->script_metrics_done = m_done; \
+ \
+ ac->script_hints_init = h_init; \
+ ac->script_hints_apply = h_apply; \
+ }
+
+
#define AF_DECLARE_SCRIPT_CLASS( script_class ) \
FT_LOCAL( void ) \
FT_Init_Class_ ## script_class( AF_ScriptClassRec* ac );
-#define AF_DEFINE_SCRIPT_CLASS( script_class, script_, ranges, def_char, \
- m_size, \
- m_init, m_scale, m_done, h_init, h_apply ) \
- FT_LOCAL_DEF( void ) \
- FT_Init_Class_ ## script_class( AF_ScriptClassRec* ac ) \
- { \
- ac->script = script_; \
- ac->script_uni_ranges = ranges; \
- ac->default_char = def_char; \
- \
- ac->script_metrics_size = m_size; \
- \
- ac->script_metrics_init = m_init; \
- ac->script_metrics_scale = m_scale; \
- ac->script_metrics_done = m_done; \
- \
- ac->script_hints_init = h_init; \
- ac->script_hints_apply = h_apply; \
+#define AF_DEFINE_SCRIPT_CLASS( \
+ script_class, \
+ script_, \
+ blue_string_set_, \
+ writing_system_, \
+ ranges, \
+ std_char ) \
+ FT_LOCAL_DEF( void ) \
+ FT_Init_Class_ ## script_class( AF_ScriptClassRec* ac ) \
+ { \
+ ac->script = script_; \
+ ac->blue_stringset = blue_stringset_; \
+ ac->writing_system = writing_system_; \
+ ac->script_uni_ranges = ranges; \
+ ac->standard_char = std_char; \
}
#endif /* FT_CONFIG_OPTION_PIC */
diff --git a/src/autofit/afwrtsys.h b/src/autofit/afwrtsys.h
new file mode 100644
index 0000000..602c558
--- /dev/null
+++ b/src/autofit/afwrtsys.h
@@ -0,0 +1,51 @@
+/***************************************************************************/
+/* */
+/* afwrtsys.h */
+/* */
+/* Auto-fitter writing systems (specification only). */
+/* */
+/* Copyright 2013 by */
+/* David Turner, Robert Wilhelm, and Werner Lemberg. */
+/* */
+/* This file is part of the FreeType project, and may only be used, */
+/* modified, and distributed under the terms of the FreeType project */
+/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
+/* this file you indicate that you have read the license and */
+/* understand and accept it fully. */
+/* */
+/***************************************************************************/
+
+
+#ifndef __AFWRTSYS_H__
+#define __AFWRTSYS_H__
+
+ /* Since preprocessor directives can't create other preprocessor */
+ /* directives, we have to include the header files manually. */
+
+#include "afdummy.h"
+#include "aflatin.h"
+#include "afcjk.h"
+#include "afindic.h"
+#ifdef FT_OPTION_AUTOFIT2
+#include "aflatin2.h"
+#endif
+
+#endif /* __AFWRTSYS_H__ */
+
+
+ /* The following part can be included multiple times. */
+ /* Define `WRITING_SYSTEM' as needed. */
+
+
+ /* Add new writing systems here. */
+
+ WRITING_SYSTEM( dummy, DUMMY )
+ WRITING_SYSTEM( latin, LATIN )
+ WRITING_SYSTEM( cjk, CJK )
+ WRITING_SYSTEM( indic, INDIC )
+#ifdef FT_OPTION_AUTOFIT2
+ WRITING_SYSTEM( latin2, LATIN2 )
+#endif
+
+
+/* END */
diff --git a/src/autofit/autofit.c b/src/autofit/autofit.c
index 3883a0a..b23374a 100644
--- a/src/autofit/autofit.c
+++ b/src/autofit/autofit.c
@@ -4,7 +4,7 @@
/* */
/* Auto-fitter module (body). */
/* */
-/* Copyright 2003-2007, 2011 by */
+/* Copyright 2003-2007, 2011, 2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -20,6 +20,7 @@
#include <ft2build.h>
#include "afpic.c"
#include "afangles.c"
+#include "afblue.c"
#include "afglobal.c"
#include "afhints.c"
diff --git a/src/base/ftbbox.c b/src/base/ftbbox.c
index 6d1c44c..8d3f383 100644
--- a/src/base/ftbbox.c
+++ b/src/base/ftbbox.c
@@ -85,7 +85,7 @@
/* BBox_Conic_Check */
/* */
/* <Description> */
- /* Finds the extrema of a 1-dimensional conic Bezier curve and update */
+ /* Find the extrema of a 1-dimensional conic Bezier curve and update */
/* a bounding range. This version uses direct computation, as it */
/* doesn't need square roots. */
/* */
@@ -108,30 +108,19 @@
FT_Pos* min,
FT_Pos* max )
{
- if ( y1 <= y3 && y2 == y1 ) /* flat arc */
- goto Suite;
+ /* This function is only called when a control off-point is outside */
+ /* the bbox that contains all on-points. It finds a local extremum */
+ /* within the segment, equal to (y1*y3 - y2*y2)/(y1 - 2*y2 + y3). */
+ /* Or, offsetting from y2, we get */
- if ( y1 < y3 )
- {
- if ( y2 >= y1 && y2 <= y3 ) /* ascending arc */
- goto Suite;
- }
- else
- {
- if ( y2 >= y3 && y2 <= y1 ) /* descending arc */
- {
- y2 = y1;
- y1 = y3;
- y3 = y2;
- goto Suite;
- }
- }
+ y1 -= y2;
+ y3 -= y2;
+ y2 += FT_MulDiv( y1, y3, y1 + y3 );
- y1 = y3 = y1 - FT_MulDiv( y2 - y1, y2 - y1, y1 - 2*y2 + y3 );
-
- Suite:
- if ( y1 < *min ) *min = y1;
- if ( y3 > *max ) *max = y3;
+ if ( y2 < *min )
+ *min = y2;
+ if ( y2 > *max )
+ *max = y2;
}
@@ -195,9 +184,9 @@
/* BBox_Cubic_Check */
/* */
/* <Description> */
- /* Finds the extrema of a 1-dimensional cubic Bezier curve and */
- /* updates a bounding range. This version uses splitting because we */
- /* don't want to use square roots and extra accuracy. */
+ /* Find the extrema of a 1-dimensional cubic Bezier curve and */
+ /* update a bounding range. This version uses iterative splitting */
+ /* because it is faster than the exact solution with square roots. */
/* */
/* <Input> */
/* p1 :: The start coordinate. */
@@ -213,28 +202,16 @@
/* */
/* max :: The address of the current maximum. */
/* */
-
-#if 0
-
- static void
- BBox_Cubic_Check( FT_Pos p1,
- FT_Pos p2,
- FT_Pos p3,
- FT_Pos p4,
- FT_Pos* min,
- FT_Pos* max )
+ static FT_Pos
+ update_cubic_max( FT_Pos q1,
+ FT_Pos q2,
+ FT_Pos q3,
+ FT_Pos q4,
+ FT_Pos max )
{
- FT_Pos q1, q2, q3, q4;
-
-
- q1 = p1;
- q2 = p2;
- q3 = p3;
- q4 = p4;
-
- /* for a conic segment to possibly reach new maximum */
- /* one of its off-points must be above the current value */
- while ( q2 > *max || q3 > *max )
+ /* for a cubic segment to possibly reach new maximum, at least */
+ /* one of its off-points must stay above the current value */
+ while ( q2 > max || q3 > max )
{
/* determine which half contains the maximum and split */
if ( q1 + q2 > q3 + q4 ) /* first half */
@@ -260,232 +237,92 @@
q3 = q3 / 2;
}
- /* check if either end reached the maximum */
+ /* check whether either end reached the maximum */
if ( q1 == q2 && q1 >= q3 )
{
- *max = q1;
+ max = q1;
break;
}
if ( q3 == q4 && q2 <= q4 )
{
- *max = q4;
+ max = q4;
break;
}
}
- q1 = p1;
- q2 = p2;
- q3 = p3;
- q4 = p4;
-
- /* for a conic segment to possibly reach new minimum */
- /* one of its off-points must be below the current value */
- while ( q2 < *min || q3 < *min )
- {
- /* determine which half contains the minimum and split */
- if ( q1 + q2 < q3 + q4 ) /* first half */
- {
- q4 = q4 + q3;
- q3 = q3 + q2;
- q2 = q2 + q1;
- q4 = q4 + q3;
- q3 = q3 + q2;
- q4 = ( q4 + q3 ) / 8;
- q3 = q3 / 4;
- q2 = q2 / 2;
- }
- else /* second half */
- {
- q1 = q1 + q2;
- q2 = q2 + q3;
- q3 = q3 + q4;
- q1 = q1 + q2;
- q2 = q2 + q3;
- q1 = ( q1 + q2 ) / 8;
- q2 = q2 / 4;
- q3 = q3 / 2;
- }
-
- /* check if either end reached the minimum */
- if ( q1 == q2 && q1 <= q3 )
- {
- *min = q1;
- break;
- }
- if ( q3 == q4 && q2 >= q4 )
- {
- *min = q4;
- break;
- }
- }
- }
-
-#else
-
- static void
- test_cubic_extrema( FT_Pos y1,
- FT_Pos y2,
- FT_Pos y3,
- FT_Pos y4,
- FT_Fixed u,
- FT_Pos* min,
- FT_Pos* max )
- {
- /* FT_Pos a = y4 - 3*y3 + 3*y2 - y1; */
- FT_Pos b = y3 - 2*y2 + y1;
- FT_Pos c = y2 - y1;
- FT_Pos d = y1;
- FT_Pos y;
- FT_Fixed uu;
-
- FT_UNUSED ( y4 );
-
-
- /* The polynomial is */
- /* */
- /* P(x) = a*x^3 + 3b*x^2 + 3c*x + d , */
- /* */
- /* dP/dx = 3a*x^2 + 6b*x + 3c . */
- /* */
- /* However, we also have */
- /* */
- /* dP/dx(u) = 0 , */
- /* */
- /* which implies by subtraction that */
- /* */
- /* P(u) = b*u^2 + 2c*u + d . */
-
- if ( u > 0 && u < 0x10000L )
- {
- uu = FT_MulFix( u, u );
- y = d + FT_MulFix( c, 2*u ) + FT_MulFix( b, uu );
-
- if ( y < *min ) *min = y;
- if ( y > *max ) *max = y;
- }
+ return max;
}
static void
- BBox_Cubic_Check( FT_Pos y1,
- FT_Pos y2,
- FT_Pos y3,
- FT_Pos y4,
+ BBox_Cubic_Check( FT_Pos p1,
+ FT_Pos p2,
+ FT_Pos p3,
+ FT_Pos p4,
FT_Pos* min,
FT_Pos* max )
{
- /* always compare first and last points */
- if ( y1 < *min ) *min = y1;
- else if ( y1 > *max ) *max = y1;
+ FT_Pos nmin, nmax;
+ FT_Int shift;
- if ( y4 < *min ) *min = y4;
- else if ( y4 > *max ) *max = y4;
- /* now, try to see if there are split points here */
- if ( y1 <= y4 )
+ /* This function is only called when a control off-point is outside */
+ /* the bbox that contains all on-points. It finds a local extremum */
+ /* within the segment using iterative bisection of the segment. */
+ /* The fixed-point arithmetic of bisection is inherently stable */
+ /* but may loose accuracy in the two lowest bits. To compensate, */
+ /* we upscale the segment if there is room. Large values may need */
+ /* to be downscaled to avoid overflows during bisection. */
+ /* The control off-point outside the bbox is likely to have the top */
+ /* absolute value among arguments. */
+
+ shift = 27 - FT_MSB( FT_ABS( p2 ) | FT_ABS( p3 ) );
+
+ if ( shift > 0 )
{
- /* flat or ascending arc test */
- if ( y1 <= y2 && y2 <= y4 && y1 <= y3 && y3 <= y4 )
- return;
+ /* upscaling too much just wastes time */
+ if ( shift > 2 )
+ shift = 2;
+
+ p1 <<= shift;
+ p2 <<= shift;
+ p3 <<= shift;
+ p4 <<= shift;
+ nmin = *min << shift;
+ nmax = *max << shift;
}
- else /* y1 > y4 */
+ else
{
- /* descending arc test */
- if ( y1 >= y2 && y2 >= y4 && y1 >= y3 && y3 >= y4 )
- return;
+ p1 >>= -shift;
+ p2 >>= -shift;
+ p3 >>= -shift;
+ p4 >>= -shift;
+ nmin = *min >> -shift;
+ nmax = *max >> -shift;
}
- /* There are some split points. Find them. */
- /* We already made sure that a, b, and c below cannot be all zero. */
+ nmax = update_cubic_max( p1, p2, p3, p4, nmax );
+
+ /* now flip the signs to update the minimum */
+ nmin = -update_cubic_max( -p1, -p2, -p3, -p4, -nmin );
+
+ if ( shift > 0 )
{
- FT_Pos a = y4 - 3*y3 + 3*y2 - y1;
- FT_Pos b = y3 - 2*y2 + y1;
- FT_Pos c = y2 - y1;
- FT_Pos d;
- FT_Fixed t;
- FT_Int shift;
-
-
- /* We need to solve `ax^2+2bx+c' here, without floating points! */
- /* The trick is to normalize to a different representation in order */
- /* to use our 16.16 fixed-point routines. */
- /* */
- /* We compute FT_MulFix(b,b) and FT_MulFix(a,c) after normalization. */
- /* These values must fit into a single 16.16 value. */
- /* */
- /* We normalize a, b, and c to `8.16' fixed-point values to ensure */
- /* that their product is held in a `16.16' value including the sign. */
- /* Necessarily, we need to shift `a', `b', and `c' so that the most */
- /* significant bit of their absolute values is at position 22. */
- /* */
- /* This also means that we are using 23 bits of precision to compute */
- /* the zeros, independently of the range of the original polynomial */
- /* coefficients. */
- /* */
- /* This algorithm should ensure reasonably accurate values for the */
- /* zeros. Note that they are only expressed with 16 bits when */
- /* computing the extrema (the zeros need to be in 0..1 exclusive */
- /* to be considered part of the arc). */
-
- shift = FT_MSB( FT_ABS( a ) | FT_ABS( b ) | FT_ABS( c ) );
-
- if ( shift > 22 )
- {
- shift -= 22;
-
- /* this loses some bits of precision, but we use 23 of them */
- /* for the computation anyway */
- a >>= shift;
- b >>= shift;
- c >>= shift;
- }
- else
- {
- shift = 22 - shift;
-
- a <<= shift;
- b <<= shift;
- c <<= shift;
- }
-
- /* handle a == 0 */
- if ( a == 0 )
- {
- if ( b != 0 )
- {
- t = - FT_DivFix( c, b ) / 2;
- test_cubic_extrema( y1, y2, y3, y4, t, min, max );
- }
- }
- else
- {
- /* solve the equation now */
- d = FT_MulFix( b, b ) - FT_MulFix( a, c );
- if ( d < 0 )
- return;
-
- if ( d == 0 )
- {
- /* there is a single split point at -b/a */
- t = - FT_DivFix( b, a );
- test_cubic_extrema( y1, y2, y3, y4, t, min, max );
- }
- else
- {
- /* there are two solutions; we need to filter them */
- d = FT_SqrtFixed( (FT_Int32)d );
- t = - FT_DivFix( b - d, a );
- test_cubic_extrema( y1, y2, y3, y4, t, min, max );
-
- t = - FT_DivFix( b + d, a );
- test_cubic_extrema( y1, y2, y3, y4, t, min, max );
- }
- }
+ nmin >>= shift;
+ nmax >>= shift;
}
+ else
+ {
+ nmin <<= -shift;
+ nmax <<= -shift;
+ }
+
+ if ( nmin < *min )
+ *min = nmin;
+ if ( nmax > *max )
+ *max = nmax;
}
-#endif
-
/*************************************************************************/
/* */
@@ -521,8 +358,9 @@
FT_Vector* to,
TBBox_Rec* user )
{
- /* we don't need to check `to' since it is always an `on' point, thus */
- /* within the bbox */
+ /* We don't need to check `to' since it is always an on-point, */
+ /* thus within the bbox. Only segments with an off-point outside */
+ /* the bbox can possibly reach new extreme values. */
if ( CHECK_X( control1, user->bbox ) ||
CHECK_X( control2, user->bbox ) )
diff --git a/src/base/ftbitmap.c b/src/base/ftbitmap.c
index 975818e..182b1cc 100644
--- a/src/base/ftbitmap.c
+++ b/src/base/ftbitmap.c
@@ -385,6 +385,10 @@
FT_Long l;
+ /* Short-circuit transparent color to avoid div-by-zero. */
+ if ( !a )
+ return 0;
+
/*
* Luminosity for sRGB is defined using ~0.2126,0.7152,0.0722
* coefficients for RGB channels *on the linear colors*.
diff --git a/src/base/ftcalc.c b/src/base/ftcalc.c
index 0ec0d78..b23b4d4 100644
--- a/src/base/ftcalc.c
+++ b/src/base/ftcalc.c
@@ -816,6 +816,8 @@
}
+#if 0
+
/* documentation is in ftcalc.h */
FT_BASE_DEF( FT_Int32 )
@@ -850,6 +852,8 @@
return (FT_Int32)root;
}
+#endif /* 0 */
+
/* documentation is in ftcalc.h */
@@ -945,11 +949,27 @@
FT_Pos d_in, d_out, d_corner;
+ /* We approximate the Euclidean metric (sqrt(x^2 + y^2)) with */
+ /* the Taxicab metric (|x| + |y|), which can be computed much */
+ /* faster. If one of the two vectors is much longer than the */
+ /* other one, the direction of the shorter vector doesn't */
+ /* influence the result any more. */
+ /* */
+ /* corner */
+ /* x---------------------------x */
+ /* \ / */
+ /* \ / */
+ /* in \ / out */
+ /* \ / */
+ /* o */
+ /* Point */
+ /* */
+
if ( ax < 0 )
ax = -ax;
if ( ay < 0 )
ay = -ay;
- d_in = ax + ay;
+ d_in = ax + ay; /* d_in = || in || */
ax = out_x;
if ( ax < 0 )
@@ -957,7 +977,7 @@
ay = out_y;
if ( ay < 0 )
ay = -ay;
- d_out = ax + ay;
+ d_out = ax + ay; /* d_out = || out || */
ax = out_x + in_x;
if ( ax < 0 )
@@ -965,7 +985,11 @@
ay = out_y + in_y;
if ( ay < 0 )
ay = -ay;
- d_corner = ax + ay;
+ d_corner = ax + ay; /* d_corner = || in + out || */
+
+ /* now do a simple length comparison: */
+ /* */
+ /* d_in + d_out < 17/16 d_corner */
return ( d_in + d_out - d_corner ) < ( d_corner >> 4 );
}
diff --git a/src/base/ftdebug.c b/src/base/ftdebug.c
index b9156d1..39ac6ad 100644
--- a/src/base/ftdebug.c
+++ b/src/base/ftdebug.c
@@ -152,7 +152,7 @@
/* the memory and stream components which are set to 7 and 5, */
/* respectively. */
/* */
- /* See the file <include/freetype/internal/fttrace.h> for details of the */
+ /* See the file <include/internal/fttrace.h> for details of the */
/* available toggle names. */
/* */
/* The level must be between 0 and 7; 0 means quiet (except for serious */
diff --git a/src/base/ftgloadr.c b/src/base/ftgloadr.c
index 663db26..3cc5c7a 100644
--- a/src/base/ftgloadr.c
+++ b/src/base/ftgloadr.c
@@ -265,6 +265,9 @@
FT_GlyphLoader_Adjust_Points( loader );
Exit:
+ if ( error )
+ FT_GlyphLoader_Reset( loader );
+
return error;
}
diff --git a/src/base/ftglyph.c b/src/base/ftglyph.c
index 5dd28a8..c62b3db 100644
--- a/src/base/ftglyph.c
+++ b/src/base/ftglyph.c
@@ -424,15 +424,16 @@
FT_Matrix* matrix,
FT_Vector* delta )
{
- const FT_Glyph_Class* clazz;
- FT_Error error = FT_Err_Ok;
+ FT_Error error = FT_Err_Ok;
if ( !glyph || !glyph->clazz )
error = FT_THROW( Invalid_Argument );
else
{
- clazz = glyph->clazz;
+ const FT_Glyph_Class* clazz = glyph->clazz;
+
+
if ( clazz->glyph_transform )
{
/* transform glyph image */
@@ -466,38 +467,33 @@
if ( !glyph || !glyph->clazz )
return;
- else
+
+ clazz = glyph->clazz;
+ if ( !clazz->glyph_bbox )
+ return;
+
+ /* retrieve bbox in 26.6 coordinates */
+ clazz->glyph_bbox( glyph, acbox );
+
+ /* perform grid fitting if needed */
+ if ( bbox_mode == FT_GLYPH_BBOX_GRIDFIT ||
+ bbox_mode == FT_GLYPH_BBOX_PIXELS )
{
- clazz = glyph->clazz;
- if ( !clazz->glyph_bbox )
- return;
- else
- {
- /* retrieve bbox in 26.6 coordinates */
- clazz->glyph_bbox( glyph, acbox );
-
- /* perform grid fitting if needed */
- if ( bbox_mode == FT_GLYPH_BBOX_GRIDFIT ||
- bbox_mode == FT_GLYPH_BBOX_PIXELS )
- {
- acbox->xMin = FT_PIX_FLOOR( acbox->xMin );
- acbox->yMin = FT_PIX_FLOOR( acbox->yMin );
- acbox->xMax = FT_PIX_CEIL( acbox->xMax );
- acbox->yMax = FT_PIX_CEIL( acbox->yMax );
- }
-
- /* convert to integer pixels if needed */
- if ( bbox_mode == FT_GLYPH_BBOX_TRUNCATE ||
- bbox_mode == FT_GLYPH_BBOX_PIXELS )
- {
- acbox->xMin >>= 6;
- acbox->yMin >>= 6;
- acbox->xMax >>= 6;
- acbox->yMax >>= 6;
- }
- }
+ acbox->xMin = FT_PIX_FLOOR( acbox->xMin );
+ acbox->yMin = FT_PIX_FLOOR( acbox->yMin );
+ acbox->xMax = FT_PIX_CEIL( acbox->xMax );
+ acbox->yMax = FT_PIX_CEIL( acbox->yMax );
}
- return;
+
+ /* convert to integer pixels if needed */
+ if ( bbox_mode == FT_GLYPH_BBOX_TRUNCATE ||
+ bbox_mode == FT_GLYPH_BBOX_PIXELS )
+ {
+ acbox->xMin >>= 6;
+ acbox->yMin >>= 6;
+ acbox->xMax >>= 6;
+ acbox->yMax >>= 6;
+ }
}
diff --git a/src/base/ftinit.c b/src/base/ftinit.c
index 85f321f..6176273 100644
--- a/src/base/ftinit.c
+++ b/src/base/ftinit.c
@@ -23,8 +23,8 @@
/* FT_Add_Default_Modules(): */
/* This function is used to add the set of default modules to a */
/* fresh new library object. The set is taken from the header file */
- /* `freetype/config/ftmodule.h'. See the document `FreeType 2.0 */
- /* Build System' for more information. */
+ /* `config/ftmodule.h'. See the document `FreeType 2.0 Build */
+ /* System' for more information. */
/* */
/* FT_Init_FreeType(): */
/* This function creates a system object for the current platform, */
diff --git a/src/base/ftobjs.c b/src/base/ftobjs.c
index ac2a39c..bd0c66e 100644
--- a/src/base/ftobjs.c
+++ b/src/base/ftobjs.c
@@ -56,9 +56,7 @@
#endif /* _MSC_VER */
/* it's easiest to include `md5.c' directly */
-#define free md5_free /* suppress a shadow warning */
#include "md5.c"
-#undef free
#if defined( _MSC_VER )
#pragma warning( pop )
@@ -667,11 +665,18 @@
/* the check for `num_locations' assures that we actually */
/* test for instructions in a TTF and not in a CFF-based OTF */
+ /* */
+ /* since `maxSizeOfInstructions' might be unreliable, we */
+ /* check the size of the `fpgm' and `prep' tables, too -- */
+ /* the assumption is that there don't exist real TTFs where */
+ /* both `fpgm' and `prep' tables are missing */
if ( mode == FT_RENDER_MODE_LIGHT ||
face->internal->ignore_unpatented_hinter ||
( FT_IS_SFNT( face ) &&
ttface->num_locations &&
- ttface->max_profile.maxSizeOfInstructions == 0 ) )
+ ttface->max_profile.maxSizeOfInstructions == 0 &&
+ ttface->font_program_size == 0 &&
+ ttface->cvt_program_size == 0 ) )
autohint = TRUE;
}
}
@@ -1133,7 +1138,8 @@
/* */
static FT_Error
open_face( FT_Driver driver,
- FT_Stream stream,
+ FT_Stream *astream,
+ FT_Bool external_stream,
FT_Long face_index,
FT_Int num_params,
FT_Parameter* params,
@@ -1141,10 +1147,11 @@
{
FT_Memory memory;
FT_Driver_Class clazz;
- FT_Face face = 0;
- FT_Error error, error2;
+ FT_Face face = NULL;
FT_Face_Internal internal = NULL;
+ FT_Error error, error2;
+
clazz = driver->clazz;
memory = driver->root.memory;
@@ -1153,15 +1160,19 @@
if ( FT_ALLOC( face, clazz->face_object_size ) )
goto Fail;
+ face->driver = driver;
+ face->memory = memory;
+ face->stream = *astream;
+
+ /* set the FT_FACE_FLAG_EXTERNAL_STREAM bit for FT_Done_Face */
+ if ( external_stream )
+ face->face_flags |= FT_FACE_FLAG_EXTERNAL_STREAM;
+
if ( FT_NEW( internal ) )
goto Fail;
face->internal = internal;
- face->driver = driver;
- face->memory = memory;
- face->stream = stream;
-
#ifdef FT_CONFIG_OPTION_INCREMENTAL
{
int i;
@@ -1177,11 +1188,12 @@
#endif
if ( clazz->init_face )
- error = clazz->init_face( stream,
+ error = clazz->init_face( *astream,
face,
(FT_Int)face_index,
num_params,
params );
+ *astream = face->stream; /* Stream may have been changed. */
if ( error )
goto Fail;
@@ -2024,8 +2036,8 @@
FT_Face *aface )
{
FT_Error error;
- FT_Driver driver;
- FT_Memory memory;
+ FT_Driver driver = NULL;
+ FT_Memory memory = NULL;
FT_Stream stream = NULL;
FT_Face face = NULL;
FT_ListNode node = NULL;
@@ -2069,7 +2081,7 @@
params = args->params;
}
- error = open_face( driver, stream, face_index,
+ error = open_face( driver, &stream, external_stream, face_index,
num_params, params, &face );
if ( !error )
goto Success;
@@ -2105,7 +2117,7 @@
params = args->params;
}
- error = open_face( driver, stream, face_index,
+ error = open_face( driver, &stream, external_stream, face_index,
num_params, params, &face );
if ( !error )
goto Success;
@@ -2174,10 +2186,6 @@
Success:
FT_TRACE4(( "FT_Open_Face: New face object, adding to list\n" ));
- /* set the FT_FACE_FLAG_EXTERNAL_STREAM bit for FT_Done_Face */
- if ( external_stream )
- face->face_flags |= FT_FACE_FLAG_EXTERNAL_STREAM;
-
/* add the face object to its driver's list */
if ( FT_NEW( node ) )
goto Fail;
@@ -2265,7 +2273,10 @@
goto Exit;
Fail:
- FT_Done_Face( face );
+ if ( node )
+ FT_Done_Face( face ); /* face must be in the driver's list */
+ else if ( face )
+ destroy_face( memory, face, driver );
Exit:
FT_TRACE4(( "FT_Open_Face: Return %d\n", error ));
@@ -3377,8 +3388,10 @@
FT_CMap cmap = FT_CMAP( face->charmap );
- do {
+ do
+ {
gindex = cmap->clazz->char_next( cmap, &code );
+
} while ( gindex >= (FT_UInt)face->num_glyphs );
result = ( gindex == 0 ) ? 0 : code;
@@ -4308,7 +4321,8 @@
FT_Renderer renderer = FT_RENDERER( module );
- if ( renderer->clazz->glyph_format == FT_GLYPH_FORMAT_OUTLINE &&
+ if ( renderer->clazz &&
+ renderer->clazz->glyph_format == FT_GLYPH_FORMAT_OUTLINE &&
renderer->raster )
renderer->clazz->raster_class->raster_done( renderer->raster );
}
@@ -4513,9 +4527,9 @@
service = (FT_Service_Properties)interface;
if ( set )
- missing_func = !service->set_property;
+ missing_func = (FT_Bool)( !service->set_property );
else
- missing_func = !service->get_property;
+ missing_func = (FT_Bool)( !service->get_property );
if ( missing_func )
{
diff --git a/src/base/ftoutln.c b/src/base/ftoutln.c
index 54ca5cd..35df0cd 100644
--- a/src/base/ftoutln.c
+++ b/src/base/ftoutln.c
@@ -576,11 +576,13 @@
{
char* p = outline->tags + first;
char* q = outline->tags + last;
- char swap;
while ( p < q )
{
+ char swap;
+
+
swap = *p;
*p = *q;
*q = swap;
@@ -721,7 +723,8 @@
#if 0
#define FT_OUTLINE_GET_CONTOUR( outline, c, first, last ) \
- do { \
+ do \
+ { \
(first) = ( c > 0 ) ? (outline)->points + \
(outline)->contours[c - 1] + 1 \
: (outline)->points; \
diff --git a/src/base/ftpic.c b/src/base/ftpic.c
index 1c87101..9bd92f7 100644
--- a/src/base/ftpic.c
+++ b/src/base/ftpic.c
@@ -4,7 +4,7 @@
/* */
/* The FreeType position independent code services (body). */
/* */
-/* Copyright 2009 by */
+/* Copyright 2009, 2013 by */
/* Oran Agra and Mickey Gabel. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -29,7 +29,7 @@
ft_pic_container_init( FT_Library library )
{
FT_PIC_Container* pic_container = &library->pic_container;
- FT_Error error = FT_Err_Ok;
+ FT_Error error;
FT_MEM_SET( pic_container, 0, sizeof ( *pic_container ) );
diff --git a/src/base/ftsynth.c b/src/base/ftsynth.c
index 241d37f..3098a60 100644
--- a/src/base/ftsynth.c
+++ b/src/base/ftsynth.c
@@ -4,7 +4,7 @@
/* */
/* FreeType synthesizing code for emboldening and slanting (body). */
/* */
-/* Copyright 2000-2006, 2010, 2012 by */
+/* Copyright 2000-2006, 2010, 2012, 2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -139,10 +139,11 @@
if ( slot->advance.y )
slot->advance.y += ystr;
- slot->metrics.width += xstr;
- slot->metrics.height += ystr;
- slot->metrics.horiAdvance += xstr;
- slot->metrics.vertAdvance += ystr;
+ slot->metrics.width += xstr;
+ slot->metrics.height += ystr;
+ slot->metrics.horiAdvance += xstr;
+ slot->metrics.vertAdvance += ystr;
+ slot->metrics.horiBearingY += ystr;
/* XXX: 16-bit overflow case must be excluded before here */
if ( slot->format == FT_GLYPH_FORMAT_BITMAP )
diff --git a/src/base/md5.c b/src/base/md5.c
index 2f01c93..52d96ac 100644
--- a/src/base/md5.c
+++ b/src/base/md5.c
@@ -50,7 +50,8 @@
*/
#define F(x, y, z) ((z) ^ ((x) & ((y) ^ (z))))
#define G(x, y, z) ((y) ^ ((z) & ((x) ^ (y))))
-#define H(x, y, z) ((x) ^ (y) ^ (z))
+#define H(x, y, z) (((x) ^ (y)) ^ (z))
+#define H2(x, y, z) ((x) ^ ((y) ^ (z)))
#define I(x, y, z) ((y) ^ ((x) | ~(z)))
/*
@@ -89,13 +90,13 @@
* This processes one or more 64-byte data blocks, but does NOT update
* the bit counters. There are no alignment requirements.
*/
-static void *body(MD5_CTX *ctx, void *data, unsigned long size)
+static const void *body(MD5_CTX *ctx, const void *data, unsigned long size)
{
- unsigned char *ptr;
+ const unsigned char *ptr;
MD5_u32plus a, b, c, d;
MD5_u32plus saved_a, saved_b, saved_c, saved_d;
- ptr = (unsigned char *)data;
+ ptr = (const unsigned char *)data;
a = ctx->a;
b = ctx->b;
@@ -146,21 +147,21 @@
/* Round 3 */
STEP(H, a, b, c, d, GET(5), 0xfffa3942, 4)
- STEP(H, d, a, b, c, GET(8), 0x8771f681, 11)
+ STEP(H2, d, a, b, c, GET(8), 0x8771f681, 11)
STEP(H, c, d, a, b, GET(11), 0x6d9d6122, 16)
- STEP(H, b, c, d, a, GET(14), 0xfde5380c, 23)
+ STEP(H2, b, c, d, a, GET(14), 0xfde5380c, 23)
STEP(H, a, b, c, d, GET(1), 0xa4beea44, 4)
- STEP(H, d, a, b, c, GET(4), 0x4bdecfa9, 11)
+ STEP(H2, d, a, b, c, GET(4), 0x4bdecfa9, 11)
STEP(H, c, d, a, b, GET(7), 0xf6bb4b60, 16)
- STEP(H, b, c, d, a, GET(10), 0xbebfbc70, 23)
+ STEP(H2, b, c, d, a, GET(10), 0xbebfbc70, 23)
STEP(H, a, b, c, d, GET(13), 0x289b7ec6, 4)
- STEP(H, d, a, b, c, GET(0), 0xeaa127fa, 11)
+ STEP(H2, d, a, b, c, GET(0), 0xeaa127fa, 11)
STEP(H, c, d, a, b, GET(3), 0xd4ef3085, 16)
- STEP(H, b, c, d, a, GET(6), 0x04881d05, 23)
+ STEP(H2, b, c, d, a, GET(6), 0x04881d05, 23)
STEP(H, a, b, c, d, GET(9), 0xd9d4d039, 4)
- STEP(H, d, a, b, c, GET(12), 0xe6db99e5, 11)
+ STEP(H2, d, a, b, c, GET(12), 0xe6db99e5, 11)
STEP(H, c, d, a, b, GET(15), 0x1fa27cf8, 16)
- STEP(H, b, c, d, a, GET(2), 0xc4ac5665, 23)
+ STEP(H2, b, c, d, a, GET(2), 0xc4ac5665, 23)
/* Round 4 */
STEP(I, a, b, c, d, GET(0), 0xf4292244, 6)
@@ -207,10 +208,10 @@
ctx->hi = 0;
}
-void MD5_Update(MD5_CTX *ctx, void *data, unsigned long size)
+void MD5_Update(MD5_CTX *ctx, const void *data, unsigned long size)
{
MD5_u32plus saved_lo;
- unsigned long used, free;
+ unsigned long used, available;
saved_lo = ctx->lo;
if ((ctx->lo = (saved_lo + size) & 0x1fffffff) < saved_lo)
@@ -220,16 +221,16 @@
used = saved_lo & 0x3f;
if (used) {
- free = 64 - used;
+ available = 64 - used;
- if (size < free) {
+ if (size < available) {
memcpy(&ctx->buffer[used], data, size);
return;
}
- memcpy(&ctx->buffer[used], data, free);
- data = (unsigned char *)data + free;
- size -= free;
+ memcpy(&ctx->buffer[used], data, available);
+ data = (const unsigned char *)data + available;
+ size -= available;
body(ctx, ctx->buffer, 64);
}
@@ -243,22 +244,22 @@
void MD5_Final(unsigned char *result, MD5_CTX *ctx)
{
- unsigned long used, free;
+ unsigned long used, available;
used = ctx->lo & 0x3f;
ctx->buffer[used++] = 0x80;
- free = 64 - used;
+ available = 64 - used;
- if (free < 8) {
- memset(&ctx->buffer[used], 0, free);
+ if (available < 8) {
+ memset(&ctx->buffer[used], 0, available);
body(ctx, ctx->buffer, 64);
used = 0;
- free = 64;
+ available = 64;
}
- memset(&ctx->buffer[used], 0, free - 8);
+ memset(&ctx->buffer[used], 0, available - 8);
ctx->lo <<= 3;
ctx->buffer[56] = ctx->lo;
diff --git a/src/base/md5.h b/src/base/md5.h
index f1a6857..2da44bf 100644
--- a/src/base/md5.h
+++ b/src/base/md5.h
@@ -39,7 +39,7 @@
} MD5_CTX;
extern void MD5_Init(MD5_CTX *ctx);
-extern void MD5_Update(MD5_CTX *ctx, void *data, unsigned long size);
+extern void MD5_Update(MD5_CTX *ctx, const void *data, unsigned long size);
extern void MD5_Final(unsigned char *result, MD5_CTX *ctx);
#endif
diff --git a/src/cff/cf2blues.c b/src/cff/cf2blues.c
index 5b34839..eec589e 100644
--- a/src/cff/cf2blues.c
+++ b/src/cff/cf2blues.c
@@ -86,11 +86,13 @@
size_t i;
CF2_Fixed emBoxBottom, emBoxTop;
+#if 0
CF2_Int unitsPerEm = font->unitsPerEm;
if ( unitsPerEm == 0 )
unitsPerEm = 1000;
+#endif
FT_ZERO( blues );
blues->scale = font->innerTransform.d;
diff --git a/src/cff/cf2font.c b/src/cff/cf2font.c
index 8b2331d..718d1e2 100644
--- a/src/cff/cf2font.c
+++ b/src/cff/cf2font.c
@@ -51,10 +51,59 @@
CF2_Fixed stemWidth,
CF2_Fixed* darkenAmount,
CF2_Fixed boldenAmount,
- FT_Bool stemDarkened )
+ FT_Bool stemDarkened,
+ FT_Int* darkenParams )
{
+ /*
+ * Total darkening amount is computed in 1000 unit character space
+ * using the modified 5 part curve as Adobe's Avalon rasterizer.
+ * The darkening amount is smaller for thicker stems.
+ * It becomes zero when the stem is thicker than 2.333 pixels.
+ *
+ * By default, we use
+ *
+ * darkenAmount = 0.4 pixels if scaledStem <= 0.5 pixels,
+ * darkenAmount = 0.275 pixels if 1 <= scaledStem <= 1.667 pixels,
+ * darkenAmount = 0 pixel if scaledStem >= 2.333 pixels,
+ *
+ * and piecewise linear in-between:
+ *
+ *
+ * darkening
+ * ^
+ * |
+ * | (x1,y1)
+ * |--------+
+ * | \
+ * | \
+ * | \ (x3,y3)
+ * | +----------+
+ * | (x2,y2) \
+ * | \
+ * | \
+ * | +-----------------
+ * | (x4,y4)
+ * +---------------------------------------------> stem
+ * thickness
+ *
+ *
+ * This corresponds to the following values for the
+ * `darkening-parameters' property:
+ *
+ * (x1, y1) = (500, 400)
+ * (x2, y2) = (1000, 275)
+ * (x3, y3) = (1667, 275)
+ * (x4, y4) = (2333, 0)
+ *
+ */
+
/* Internal calculations are done in units per thousand for */
- /* convenience. */
+ /* convenience. The x axis is scaled stem width in */
+ /* thousandths of a pixel. That is, 1000 is 1 pixel. */
+ /* The y axis is darkening amount in thousandths of a pixel.*/
+ /* In the code, below, dividing by ppem and */
+ /* adjusting for emRatio converts darkenAmount to character */
+ /* space (font units). */
CF2_Fixed stemWidthPer1000, scaledStem;
@@ -69,6 +118,16 @@
if ( stemDarkened )
{
+ FT_Int x1 = darkenParams[0];
+ FT_Int y1 = darkenParams[1];
+ FT_Int x2 = darkenParams[2];
+ FT_Int y2 = darkenParams[3];
+ FT_Int x3 = darkenParams[4];
+ FT_Int y3 = darkenParams[5];
+ FT_Int x4 = darkenParams[6];
+ FT_Int y4 = darkenParams[7];
+
+
/* convert from true character space to 1000 unit character space; */
/* add synthetic emboldening effect */
@@ -81,7 +140,7 @@
stemWidthPer1000 <= ( stemWidth + boldenAmount ) )
{
stemWidthPer1000 = 0; /* to pacify compiler */
- scaledStem = cf2_intToFixed( 2333 );
+ scaledStem = cf2_intToFixed( x4 );
}
else
{
@@ -89,39 +148,70 @@
if ( ppem > CF2_FIXED_ONE &&
scaledStem <= stemWidthPer1000 )
- scaledStem = cf2_intToFixed( 2333 );
+ scaledStem = cf2_intToFixed( x4 );
}
- /*
- * Total darkening amount is computed in 1000 unit character space
- * using the modified 5 part curve as Avalon rasterizer.
- * The darkening amount is smaller for thicker stems.
- * It becomes zero when the stem is thicker than 2.333 pixels.
- *
- * In Avalon rasterizer,
- *
- * darkenAmount = 0.5 pixels if scaledStem <= 0.5 pixels,
- * darkenAmount = 0.333 pixels if 1 <= scaledStem <= 1.667 pixels,
- * darkenAmount = 0 pixel if scaledStem >= 2.333 pixels,
- *
- * and piecewise linear in-between.
- *
- */
- if ( scaledStem < cf2_intToFixed( 500 ) )
- *darkenAmount = FT_DivFix( cf2_intToFixed( 400 ), ppem );
+ /* now apply the darkening parameters */
- else if ( scaledStem < cf2_intToFixed( 1000 ) )
- *darkenAmount = FT_DivFix( cf2_intToFixed( 525 ), ppem ) -
- FT_MulFix( stemWidthPer1000,
- cf2_floatToFixed( .25 ) );
+ if ( scaledStem < cf2_intToFixed( x1 ) )
+ *darkenAmount = FT_DivFix( cf2_intToFixed( y1 ), ppem );
- else if ( scaledStem < cf2_intToFixed( 1667 ) )
- *darkenAmount = FT_DivFix( cf2_intToFixed( 275 ), ppem );
+ else if ( scaledStem < cf2_intToFixed( x2 ) )
+ {
+ FT_Int xdelta = x2 - x1;
+ FT_Int ydelta = y2 - y1;
+ FT_Int x = stemWidthPer1000 -
+ FT_DivFix( cf2_intToFixed( x1 ), ppem );
- else if ( scaledStem < cf2_intToFixed( 2333 ) )
- *darkenAmount = FT_DivFix( cf2_intToFixed( 963 ), ppem ) -
- FT_MulFix( stemWidthPer1000,
- cf2_floatToFixed( .413 ) );
+
+ if ( !xdelta )
+ goto Try_x3;
+
+ *darkenAmount = FT_MulFix( x, FT_DivFix( ydelta, xdelta ) ) +
+ FT_DivFix( cf2_intToFixed( y1 ), ppem );
+ }
+
+ else if ( scaledStem < cf2_intToFixed( x3 ) )
+ {
+ Try_x3:
+ {
+ FT_Int xdelta = x3 - x2;
+ FT_Int ydelta = y3 - y2;
+ FT_Int x = stemWidthPer1000 -
+ FT_DivFix( cf2_intToFixed( x2 ), ppem );
+
+
+ if ( !xdelta )
+ goto Try_x4;
+
+ *darkenAmount = FT_MulFix( x, FT_DivFix( ydelta, xdelta ) ) +
+ FT_DivFix( cf2_intToFixed( y2 ), ppem );
+ }
+ }
+
+ else if ( scaledStem < cf2_intToFixed( x4 ) )
+ {
+ Try_x4:
+ {
+ FT_Int xdelta = x4 - x3;
+ FT_Int ydelta = y4 - y3;
+ FT_Int x = stemWidthPer1000 -
+ FT_DivFix( cf2_intToFixed( x3 ), ppem );
+
+
+ if ( !xdelta )
+ goto Use_y4;
+
+ *darkenAmount = FT_MulFix( x, FT_DivFix( ydelta, xdelta ) ) +
+ FT_DivFix( cf2_intToFixed( y3 ), ppem );
+ }
+ }
+
+ else
+ {
+ Use_y4:
+ *darkenAmount = FT_DivFix( cf2_intToFixed( y4 ), ppem );
+ }
/* use half the amount on each side and convert back to true */
/* character space */
@@ -157,7 +247,8 @@
/* if a CID fontDict has changed, we need to recompute some cached */
/* data */
- needExtraSetup = font->lastSubfont != cf2_getSubfont( decoder );
+ needExtraSetup =
+ (FT_Bool)( font->lastSubfont != cf2_getSubfont( decoder ) );
/* if ppem has changed, we need to recompute some cached data */
/* note: because of CID font matrix concatenation, ppem and transform */
@@ -170,7 +261,7 @@
}
/* copy hinted flag on each call */
- font->hinted = font->renderingFlags & CF2_FlagsHinted;
+ font->hinted = (FT_Bool)( font->renderingFlags & CF2_FlagsHinted );
/* determine if transform has changed; */
/* include Fontmatrix but ignore translation */
@@ -204,7 +295,8 @@
*/
if ( font->stemDarkened != ( font->renderingFlags & CF2_FlagsDarkened ) )
{
- font->stemDarkened = font->renderingFlags & CF2_FlagsDarkened;
+ font->stemDarkened =
+ (FT_Bool)( font->renderingFlags & CF2_FlagsDarkened );
/* blue zones depend on darkened flag */
needExtraSetup = TRUE;
@@ -266,7 +358,8 @@
font->stdVW,
&font->darkenX,
boldenX,
- FALSE );
+ FALSE,
+ font->darkenParams );
}
else
cf2_computeDarkening( emRatio,
@@ -274,7 +367,8 @@
font->stdVW,
&font->darkenX,
0,
- font->stemDarkened );
+ font->stemDarkened,
+ font->darkenParams );
#if 0
/* since hstem is measured in the y-direction, we use the `d' member */
@@ -301,7 +395,8 @@
font->stdHW,
&font->darkenY,
boldenY,
- font->stemDarkened );
+ font->stemDarkened,
+ font->darkenParams );
if ( font->darkenX != 0 || font->darkenY != 0 )
font->darkened = TRUE;
diff --git a/src/cff/cf2font.h b/src/cff/cf2font.h
index f9dd1bb..d8860ce 100644
--- a/src/cff/cf2font.h
+++ b/src/cff/cf2font.h
@@ -85,6 +85,8 @@
/* i.e. darkenX != 0 || darkenY != 0 */
FT_Bool stemDarkened;
+ FT_Int darkenParams[8]; /* 1000 unit character space */
+
/* variables that depend on both FontDict and Transform */
CF2_Fixed stdVW; /* in character space; depends on dict entry */
CF2_Fixed stdHW; /* in character space; depends on dict entry */
diff --git a/src/cff/cf2ft.c b/src/cff/cf2ft.c
index c09a024..4abbc9d 100644
--- a/src/cff/cf2ft.c
+++ b/src/cff/cf2ft.c
@@ -344,6 +344,15 @@
if ( scaled && !driver->no_stem_darkening )
font->renderingFlags |= CF2_FlagsDarkened;
+ font->darkenParams[0] = driver->darken_params[0];
+ font->darkenParams[1] = driver->darken_params[1];
+ font->darkenParams[2] = driver->darken_params[2];
+ font->darkenParams[3] = driver->darken_params[3];
+ font->darkenParams[4] = driver->darken_params[4];
+ font->darkenParams[5] = driver->darken_params[5];
+ font->darkenParams[6] = driver->darken_params[6];
+ font->darkenParams[7] = driver->darken_params[7];
+
/* now get an outline for this glyph; */
/* also get units per em to validate scale */
font->unitsPerEm = (CF2_Int)cf2_getUnitsPerEm( decoder );
diff --git a/src/cff/cf2hints.c b/src/cff/cf2hints.c
index 1666e4f..5f44161 100644
--- a/src/cff/cf2hints.c
+++ b/src/cff/cf2hints.c
@@ -217,52 +217,52 @@
FT_LOCAL_DEF( FT_Bool )
cf2_hint_isValid( const CF2_Hint hint )
{
- return hint->flags != 0;
+ return (FT_Bool)( hint->flags != 0 );
}
static FT_Bool
cf2_hint_isPair( const CF2_Hint hint )
{
- return ( hint->flags &
- ( CF2_PairBottom | CF2_PairTop ) ) != 0;
+ return (FT_Bool)( ( hint->flags &
+ ( CF2_PairBottom | CF2_PairTop ) ) != 0 );
}
static FT_Bool
cf2_hint_isPairTop( const CF2_Hint hint )
{
- return ( hint->flags & CF2_PairTop ) != 0;
+ return (FT_Bool)( ( hint->flags & CF2_PairTop ) != 0 );
}
FT_LOCAL_DEF( FT_Bool )
cf2_hint_isTop( const CF2_Hint hint )
{
- return ( hint->flags &
- ( CF2_PairTop | CF2_GhostTop ) ) != 0;
+ return (FT_Bool)( ( hint->flags &
+ ( CF2_PairTop | CF2_GhostTop ) ) != 0 );
}
FT_LOCAL_DEF( FT_Bool )
cf2_hint_isBottom( const CF2_Hint hint )
{
- return ( hint->flags &
- ( CF2_PairBottom | CF2_GhostBottom ) ) != 0;
+ return (FT_Bool)( ( hint->flags &
+ ( CF2_PairBottom | CF2_GhostBottom ) ) != 0 );
}
static FT_Bool
cf2_hint_isLocked( const CF2_Hint hint )
{
- return ( hint->flags & CF2_Locked ) != 0;
+ return (FT_Bool)( ( hint->flags & CF2_Locked ) != 0 );
}
static FT_Bool
cf2_hint_isSynthetic( const CF2_Hint hint )
{
- return ( hint->flags & CF2_Synthetic ) != 0;
+ return (FT_Bool)( ( hint->flags & CF2_Synthetic ) != 0 );
}
@@ -462,7 +462,8 @@
hintmap->edge[i].dsCoord + moveDown - downMinCounter )
{
move = moveDown;
- saveEdge = moveUp < -moveDown; /* true if non-optimum move */
+ /* true if non-optimum move */
+ saveEdge = (FT_Bool)( moveUp < -moveDown );
}
else
{
@@ -595,22 +596,31 @@
indexInsert = 0;
for ( ; indexInsert < hintmap->count; indexInsert++ )
{
- if ( hintmap->edge[indexInsert].csCoord > firstHintEdge->csCoord )
+ if ( hintmap->edge[indexInsert].csCoord >= firstHintEdge->csCoord )
break;
}
/*
- * Discard any hints that overlap in character space. Most often,
- * this is while building the initial map, but in theory, it can also
- * occur because of darkening.
+ * Discard any hints that overlap in character space. Most often, this
+ * is while building the initial map, where captured hints from all
+ * zones are combined. Define overlap to include hints that `touch'
+ * (overlap zero). Hiragino Sans/Gothic fonts have numerous hints that
+ * touch. Some fonts have non-ideographic glyphs that overlap our
+ * synthetic hints.
+ *
+ * Overlap also occurs when darkening stem hints that are close.
*
*/
if ( indexInsert < hintmap->count )
{
- /* we are inserting before an existing edge: */
+ /* we are inserting before an existing edge: */
+ /* verify that an existing edge is not the same */
+ if ( hintmap->edge[indexInsert].csCoord == firstHintEdge->csCoord )
+ return; /* ignore overlapping stem hint */
+
/* verify that a new pair does not straddle the next edge */
- if ( isPair &&
- hintmap->edge[indexInsert].csCoord < secondHintEdge->csCoord )
+ if ( isPair &&
+ hintmap->edge[indexInsert].csCoord <= secondHintEdge->csCoord )
return; /* ignore overlapping stem hint */
/* verify that we are not inserting between paired edges */
@@ -644,8 +654,27 @@
firstHintEdge->csCoord );
}
- /* discard any hints that overlap in device space; this can occur */
- /* because locked hints have been moved to align with blue zones */
+ /*
+ * Discard any hints that overlap in device space; this can occur
+ * because locked hints have been moved to align with blue zones.
+ *
+ * TODO: Although we might correct this later during adjustment, we
+ * don't currently have a way to delete a conflicting hint once it has
+ * been inserted. See v2.030 MinionPro-Regular, 12 ppem darkened,
+ * initial hint map for second path, glyph 945 (the perispomeni (tilde)
+ * in U+1F6E, Greek omega with psili and perispomeni). Darkening is
+ * 25. Pair 667,747 initially conflicts in design space with top edge
+ * 660. This is because 667 maps to 7.87, and the top edge was
+ * captured by a zone at 8.0. The pair is later successfully inserted
+ * in a zone without the top edge. In this zone it is adjusted to 8.0,
+ * and no longer conflicts with the top edge in design space. This
+ * means it can be included in yet a later zone which does have the top
+ * edge hint. This produces a small mismatch between the first and
+ * last points of this path, even though the hint masks are the same.
+ * The density map difference is tiny (1/256).
+ *
+ */
+
if ( indexInsert > 0 )
{
/* we are inserting after an existing edge */
@@ -1034,6 +1063,7 @@
glyphpath->moveIsPending = TRUE;
glyphpath->pathIsOpen = FALSE;
+ glyphpath->pathIsClosing = FALSE;
glyphpath->elemIsQueued = FALSE;
}
@@ -1174,12 +1204,16 @@
/*
* Push the cached element (glyphpath->prevElem*) to the outline
* consumer. When a darkening offset is used, the end point of the
- * cached element may be adjusted to an intersection point or it may be
- * connected by a line to the current element. This calculation must
- * use a HintMap that was valid at the time the element was saved. For
- * the first point in a subpath, that is a saved HintMap. For most
- * elements, it just means the caller has delayed building a HintMap
- * from the current HintMask.
+ * cached element may be adjusted to an intersection point or we may
+ * synthesize a connecting line to the current element. If we are
+ * closing a subpath, we may also generate a connecting line to the start
+ * point.
+ *
+ * This is where Character Space (CS) is converted to Device Space (DS)
+ * using a hint map. This calculation must use a HintMap that was valid
+ * at the time the element was saved. For the first point in a subpath,
+ * that is a saved HintMap. For most elements, it just means the caller
+ * has delayed building a HintMap from the current HintMask.
*
* Transform each point with outerTransform and call the outline
* callbacks. This is a general 3x3 transform:
@@ -1249,16 +1283,32 @@
params.op = CF2_PathOpLineTo;
/* note: pt2 and pt3 are unused */
- cf2_glyphpath_hintPoint( glyphpath,
- hintmap,
- ¶ms.pt1,
- glyphpath->prevElemP1.x,
- glyphpath->prevElemP1.y );
- glyphpath->callbacks->lineTo( glyphpath->callbacks, ¶ms );
+ if ( close )
+ {
+ /* use first hint map if closing */
+ cf2_glyphpath_hintPoint( glyphpath,
+ &glyphpath->firstHintMap,
+ ¶ms.pt1,
+ glyphpath->prevElemP1.x,
+ glyphpath->prevElemP1.y );
+ }
+ else
+ {
+ cf2_glyphpath_hintPoint( glyphpath,
+ hintmap,
+ ¶ms.pt1,
+ glyphpath->prevElemP1.x,
+ glyphpath->prevElemP1.y );
+ }
- glyphpath->currentDS = params.pt1;
+ /* output only non-zero length lines */
+ if ( params.pt0.x != params.pt1.x || params.pt0.y != params.pt1.y )
+ {
+ glyphpath->callbacks->lineTo( glyphpath->callbacks, ¶ms );
+ glyphpath->currentDS = params.pt1;
+ }
break;
case CF2_PathOpCubeTo:
@@ -1295,11 +1345,24 @@
/* note: at the end of a subpath, we might do both, so use `nextP0' */
/* before we change it, below */
- cf2_glyphpath_hintPoint( glyphpath,
- hintmap,
- ¶ms.pt1,
- nextP0->x,
- nextP0->y );
+ if ( close )
+ {
+ /* if we are closing the subpath, then nextP0 is in the first */
+ /* hint zone */
+ cf2_glyphpath_hintPoint( glyphpath,
+ &glyphpath->firstHintMap,
+ ¶ms.pt1,
+ nextP0->x,
+ nextP0->y );
+ }
+ else
+ {
+ cf2_glyphpath_hintPoint( glyphpath,
+ hintmap,
+ ¶ms.pt1,
+ nextP0->x,
+ nextP0->y );
+ }
if ( params.pt1.x != glyphpath->currentDS.x ||
params.pt1.y != glyphpath->currentDS.y )
@@ -1510,6 +1573,16 @@
}
+ /*
+ * The functions cf2_glyphpath_{moveTo,lineTo,curveTo,closeOpenPath} are
+ * called by the interpreter with Character Space (CS) coordinates. Each
+ * path element is placed into a queue of length one to await the
+ * calculation of the following element. At that time, the darkening
+ * offset of the following element is known and joins can be computed,
+ * including possible modification of this element, before mapping to
+ * Device Space (DS) and passing it on to the outline consumer.
+ *
+ */
FT_LOCAL_DEF( void )
cf2_glyphpath_moveTo( CF2_GlyphPath glyphpath,
CF2_Fixed x,
@@ -1547,10 +1620,46 @@
{
CF2_Fixed xOffset, yOffset;
FT_Vector P0, P1;
+ FT_Bool newHintMap;
+ /*
+ * New hints will be applied after cf2_glyphpath_pushPrevElem has run.
+ * In case this is a synthesized closing line, any new hints should be
+ * delayed until this path is closed (`cf2_hintmask_isNew' will be
+ * called again before the next line or curve).
+ */
- /* can't compute offset of zero length line, so ignore them */
- if ( glyphpath->currentCS.x == x && glyphpath->currentCS.y == y )
+ /* true if new hint map not on close */
+ newHintMap = cf2_hintmask_isNew( glyphpath->hintMask ) &&
+ !glyphpath->pathIsClosing;
+
+ /*
+ * Zero-length lines may occur in the charstring. Because we cannot
+ * compute darkening offsets or intersections from zero-length lines,
+ * it is best to remove them and avoid artifacts. However, zero-length
+ * lines in CS at the start of a new hint map can generate non-zero
+ * lines in DS due to hint substitution. We detect a change in hint
+ * map here and pass those zero-length lines along.
+ */
+
+ /*
+ * Note: Find explicitly closed paths here with a conditional
+ * breakpoint using
+ *
+ * !gp->pathIsClosing && gp->start.x == x && gp->start.y == y
+ *
+ */
+
+ if ( glyphpath->currentCS.x == x &&
+ glyphpath->currentCS.y == y &&
+ !newHintMap )
+ /*
+ * Ignore zero-length lines in CS where the hint map is the same
+ * because the line in DS will also be zero length.
+ *
+ * Ignore zero-length lines when we synthesize a closing line because
+ * the close will be handled in cf2_glyphPath_pushPrevElem.
+ */
return;
cf2_glyphpath_computeOffset( glyphpath,
@@ -1596,7 +1705,7 @@
glyphpath->prevElemP1 = P1;
/* update current map */
- if ( cf2_hintmask_isNew( glyphpath->hintMask ) )
+ if ( newHintMap )
cf2_hintmap_build( &glyphpath->hintMap,
glyphpath->hStemHintArray,
glyphpath->vStemHintArray,
@@ -1702,29 +1811,29 @@
{
if ( glyphpath->pathIsOpen )
{
- FT_ASSERT( cf2_hintmap_isValid( &glyphpath->firstHintMap ) );
+ /*
+ * A closing line in Character Space line is always generated below
+ * with `cf2_glyphPath_lineTo'. It may be ignored later if it turns
+ * out to be zero length in Device Space.
+ */
+ glyphpath->pathIsClosing = TRUE;
- /* since we need to apply an offset to the implicit lineto, we make */
- /* it explicit here */
cf2_glyphpath_lineTo( glyphpath,
glyphpath->start.x,
glyphpath->start.y );
- /* Draw previous element (the explicit LineTo we just created, */
- /* above) and connect it to the start point, but with the offset we */
- /* saved from the first element. */
- /* Use the saved HintMap, too. */
- FT_ASSERT( glyphpath->elemIsQueued );
-
- cf2_glyphpath_pushPrevElem( glyphpath,
- &glyphpath->firstHintMap,
- &glyphpath->offsetStart0,
- glyphpath->offsetStart1,
- TRUE );
+ /* empty the final element from the queue and close the path */
+ if ( glyphpath->elemIsQueued )
+ cf2_glyphpath_pushPrevElem( glyphpath,
+ &glyphpath->hintMap,
+ &glyphpath->offsetStart0,
+ glyphpath->offsetStart1,
+ TRUE );
/* reset state machine */
glyphpath->moveIsPending = TRUE;
glyphpath->pathIsOpen = FALSE;
+ glyphpath->pathIsClosing = FALSE;
glyphpath->elemIsQueued = FALSE;
}
}
diff --git a/src/cff/cf2hints.h b/src/cff/cf2hints.h
index c4fa922..f25d91b 100644
--- a/src/cff/cf2hints.h
+++ b/src/cff/cf2hints.h
@@ -204,6 +204,7 @@
#endif
FT_Bool pathIsOpen; /* true after MoveTo */
+ FT_Bool pathIsClosing; /* true when synthesizing closepath line */
FT_Bool darken; /* true if stem darkening */
FT_Bool moveIsPending; /* true between MoveTo and offset MoveTo */
@@ -229,7 +230,8 @@
FT_Vector currentCS;
/* current point, device space */
FT_Vector currentDS;
- FT_Vector start; /* start point of subpath */
+ /* start point of subpath, character space */
+ FT_Vector start;
/* the following members constitute the `queue' of one element */
FT_Bool elemIsQueued;
diff --git a/src/cff/cf2intrp.c b/src/cff/cf2intrp.c
index 5b73e60..5610917 100644
--- a/src/cff/cf2intrp.c
+++ b/src/cff/cf2intrp.c
@@ -287,7 +287,7 @@
{
CF2_UInt i;
CF2_UInt count = cf2_stack_count( opStack );
- FT_Bool hasWidthArg = count & 1;
+ FT_Bool hasWidthArg = (FT_Bool)( count & 1 );
/* variable accumulates delta values from operand stack */
CF2_Fixed position = hintOffset;
@@ -357,8 +357,8 @@
if ( doConditionalLastRead )
{
- FT_Bool lastIsX = cf2_fixedAbs( vals[10] - *curX ) >
- cf2_fixedAbs( vals[11] - *curY );
+ FT_Bool lastIsX = (FT_Bool)( cf2_fixedAbs( vals[10] - *curX ) >
+ cf2_fixedAbs( vals[11] - *curY ) );
CF2_Fixed lastVal = cf2_stack_getReal( opStack, index );
diff --git a/src/cff/cf2read.c b/src/cff/cf2read.c
index cb671ec..2b429e3 100644
--- a/src/cff/cf2read.c
+++ b/src/cff/cf2read.c
@@ -105,7 +105,7 @@
FT_LOCAL_DEF( FT_Bool )
cf2_buf_isEnd( CF2_Buffer buf )
{
- return buf->ptr >= buf->end;
+ return (FT_Bool)( buf->ptr >= buf->end );
}
diff --git a/src/cff/cffdrivr.c b/src/cff/cffdrivr.c
index c8ca96b..dde7d44 100644
--- a/src/cff/cffdrivr.c
+++ b/src/cff/cffdrivr.c
@@ -164,6 +164,8 @@
if ( !slot )
return FT_THROW( Invalid_Slot_Handle );
+ FT_TRACE1(( "cff_glyph_load: glyph index %d\n", glyph_index ));
+
/* check whether we want a scaled outline or bitmap */
if ( !size )
load_flags |= FT_LOAD_NO_SCALE | FT_LOAD_NO_HINTING;
@@ -586,7 +588,38 @@
CFF_Driver driver = (CFF_Driver)module;
- if ( !ft_strcmp( property_name, "hinting-engine" ) )
+ if ( !ft_strcmp( property_name, "darkening-parameters" ) )
+ {
+ FT_Int* darken_params = (FT_Int*)value;
+
+ FT_Int x1 = darken_params[0];
+ FT_Int y1 = darken_params[1];
+ FT_Int x2 = darken_params[2];
+ FT_Int y2 = darken_params[3];
+ FT_Int x3 = darken_params[4];
+ FT_Int y3 = darken_params[5];
+ FT_Int x4 = darken_params[6];
+ FT_Int y4 = darken_params[7];
+
+
+ if ( x1 < 0 || x2 < 0 || x3 < 0 || x4 < 0 ||
+ y1 < 0 || y2 < 0 || y3 < 0 || y4 < 0 ||
+ x1 > x2 || x2 > x3 || x3 > x4 ||
+ y1 > 500 || y2 > 500 || y3 > 500 || y4 > 500 )
+ return FT_THROW( Invalid_Argument );
+
+ driver->darken_params[0] = x1;
+ driver->darken_params[1] = y1;
+ driver->darken_params[2] = x2;
+ driver->darken_params[3] = y2;
+ driver->darken_params[4] = x3;
+ driver->darken_params[5] = y3;
+ driver->darken_params[6] = x4;
+ driver->darken_params[7] = y4;
+
+ return error;
+ }
+ else if ( !ft_strcmp( property_name, "hinting-engine" ) )
{
FT_UInt* hinting_engine = (FT_UInt*)value;
@@ -624,13 +657,28 @@
FT_Error error = FT_Err_Ok;
CFF_Driver driver = (CFF_Driver)module;
- FT_UInt hinting_engine = driver->hinting_engine;
- FT_Bool no_stem_darkening = driver->no_stem_darkening;
-
- if ( !ft_strcmp( property_name, "hinting-engine" ) )
+ if ( !ft_strcmp( property_name, "darkening-parameters" ) )
{
- FT_UInt* val = (FT_UInt*)value;
+ FT_Int* darken_params = driver->darken_params;
+ FT_Int* val = (FT_Int*)value;
+
+
+ val[0] = darken_params[0];
+ val[1] = darken_params[1];
+ val[2] = darken_params[2];
+ val[3] = darken_params[3];
+ val[4] = darken_params[4];
+ val[5] = darken_params[5];
+ val[6] = darken_params[6];
+ val[7] = darken_params[7];
+
+ return error;
+ }
+ else if ( !ft_strcmp( property_name, "hinting-engine" ) )
+ {
+ FT_UInt hinting_engine = driver->hinting_engine;
+ FT_UInt* val = (FT_UInt*)value;
*val = hinting_engine;
@@ -639,7 +687,8 @@
}
else if ( !ft_strcmp( property_name, "no-stem-darkening" ) )
{
- FT_Bool* val = (FT_Bool*)value;
+ FT_Bool no_stem_darkening = driver->no_stem_darkening;
+ FT_Bool* val = (FT_Bool*)value;
*val = no_stem_darkening;
diff --git a/src/cff/cffgload.c b/src/cff/cffgload.c
index 1904ca0..c8e9f91 100644
--- a/src/cff/cffgload.c
+++ b/src/cff/cffgload.c
@@ -434,7 +434,7 @@
goto Exit;
}
- FT_TRACE3(( "glyph index %d (subfont %d):\n", glyph_index, fd_index ));
+ FT_TRACE3(( " in subfont %d:\n", fd_index ));
sub = cff->subfonts[fd_index];
@@ -447,10 +447,6 @@
builder->hints_globals = (void *)internal->subfonts[fd_index];
}
}
-#ifdef FT_DEBUG_LEVEL_TRACE
- else
- FT_TRACE3(( "glyph index %d:\n", glyph_index ));
-#endif
decoder->num_locals = sub->local_subrs_index.count;
decoder->locals = sub->local_subrs;
@@ -2849,7 +2845,16 @@
/* as a consequence, glyphs larger than 2000ppem get rejected */
if ( FT_ERR_EQ( error, Glyph_Too_Big ) )
{
- /* XXX to be implemented */
+ /* this time, we retry unhinted and scale up the glyph later on */
+ /* (the engine uses and sets the hardcoded value 0x10000 / 64 = */
+ /* 0x400 for both `x_scale' and `y_scale' in this case) */
+ hinting = FALSE;
+ force_scaling = TRUE;
+ glyph->hint = hinting;
+
+ error = cf2_decoder_parse_charstrings( &decoder,
+ charstring,
+ charstring_len );
}
}
diff --git a/src/cff/cffload.c b/src/cff/cffload.c
index 64b4971..ff271f3 100644
--- a/src/cff/cffload.c
+++ b/src/cff/cffload.c
@@ -414,7 +414,7 @@
cur_offset = idx->offsets[0] - 1;
/* sanity check */
- if ( cur_offset >= idx->data_size )
+ if ( cur_offset != 0 )
{
FT_TRACE0(( "cff_index_get_pointers:"
" invalid first offset value %d set to zero\n",
@@ -432,11 +432,11 @@
FT_ULong next_offset = idx->offsets[n] - 1;
- /* empty slot + two sanity checks for invalid offset tables */
- if ( next_offset == 0 ||
- next_offset < cur_offset ||
- ( next_offset >= idx->data_size && n < idx->count ) )
+ /* two sanity checks for invalid offset tables */
+ if ( next_offset < cur_offset )
next_offset = cur_offset;
+ else if ( next_offset > idx->data_size )
+ next_offset = idx->data_size;
if ( !pool )
t[n] = org_bytes + next_offset;
diff --git a/src/cff/cffobjs.c b/src/cff/cffobjs.c
index dd750d1..29c3691 100644
--- a/src/cff/cffobjs.c
+++ b/src/cff/cffobjs.c
@@ -1055,7 +1055,7 @@
CFF_Driver driver = (CFF_Driver)module;
- /* set default property values */
+ /* set default property values, cf `ftcffdrv.h' */
#ifdef CFF_CONFIG_OPTION_OLD_ENGINE
driver->hinting_engine = FT_CFF_HINTING_FREETYPE;
#else
@@ -1063,6 +1063,15 @@
#endif
driver->no_stem_darkening = FALSE;
+ driver->darken_params[0] = 500;
+ driver->darken_params[1] = 400;
+ driver->darken_params[2] = 1000;
+ driver->darken_params[3] = 275;
+ driver->darken_params[4] = 1667;
+ driver->darken_params[5] = 275;
+ driver->darken_params[6] = 2333;
+ driver->darken_params[7] = 0;
+
return FT_Err_Ok;
}
diff --git a/src/cff/cffobjs.h b/src/cff/cffobjs.h
index b375c20..dfbf9a9 100644
--- a/src/cff/cffobjs.h
+++ b/src/cff/cffobjs.h
@@ -121,6 +121,8 @@
FT_UInt hinting_engine;
FT_Bool no_stem_darkening;
+ FT_Int darken_params[8];
+
} CFF_DriverRec;
diff --git a/src/gzip/adler32.c b/src/gzip/adler32.c
new file mode 100644
index 0000000..c53f9dd
--- /dev/null
+++ b/src/gzip/adler32.c
@@ -0,0 +1,48 @@
+/* adler32.c -- compute the Adler-32 checksum of a data stream
+ * Copyright (C) 1995-2002 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* @(#) $Id$ */
+
+#include "zlib.h"
+
+#define BASE 65521L /* largest prime smaller than 65536 */
+#define NMAX 5552
+/* NMAX is the largest n such that 255n(n+1)/2 + (n+1)(BASE-1) <= 2^32-1 */
+
+#define DO1(buf,i) {s1 += buf[i]; s2 += s1;}
+#define DO2(buf,i) DO1(buf,i); DO1(buf,i+1);
+#define DO4(buf,i) DO2(buf,i); DO2(buf,i+2);
+#define DO8(buf,i) DO4(buf,i); DO4(buf,i+4);
+#define DO16(buf) DO8(buf,0); DO8(buf,8);
+
+/* ========================================================================= */
+ZEXPORT(uLong) adler32( /* adler, buf, len) */
+ uLong adler,
+ const Bytef *buf,
+ uInt len )
+{
+ unsigned long s1 = adler & 0xffff;
+ unsigned long s2 = (adler >> 16) & 0xffff;
+ int k;
+
+ if (buf == Z_NULL) return 1L;
+
+ while (len > 0) {
+ k = len < NMAX ? len : NMAX;
+ len -= k;
+ while (k >= 16) {
+ DO16(buf);
+ buf += 16;
+ k -= 16;
+ }
+ if (k != 0) do {
+ s1 += *buf++;
+ s2 += s1;
+ } while (--k);
+ s1 %= BASE;
+ s2 %= BASE;
+ }
+ return (s2 << 16) | s1;
+}
diff --git a/src/gzip/ftgzip.c b/src/gzip/ftgzip.c
new file mode 100644
index 0000000..2c60b6c
--- /dev/null
+++ b/src/gzip/ftgzip.c
@@ -0,0 +1,778 @@
+/***************************************************************************/
+/* */
+/* ftgzip.c */
+/* */
+/* FreeType support for .gz compressed files. */
+/* */
+/* This optional component relies on zlib. It should mainly be used to */
+/* parse compressed PCF fonts, as found with many X11 server */
+/* distributions. */
+/* */
+/* Copyright 2002-2006, 2009-2013 by */
+/* David Turner, Robert Wilhelm, and Werner Lemberg. */
+/* */
+/* This file is part of the FreeType project, and may only be used, */
+/* modified, and distributed under the terms of the FreeType project */
+/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
+/* this file you indicate that you have read the license and */
+/* understand and accept it fully. */
+/* */
+/***************************************************************************/
+
+
+#include <ft2build.h>
+#include FT_INTERNAL_MEMORY_H
+#include FT_INTERNAL_STREAM_H
+#include FT_INTERNAL_DEBUG_H
+#include FT_GZIP_H
+#include FT_CONFIG_STANDARD_LIBRARY_H
+
+
+#include FT_MODULE_ERRORS_H
+
+#undef __FTERRORS_H__
+
+#undef FT_ERR_PREFIX
+#define FT_ERR_PREFIX Gzip_Err_
+#define FT_ERR_BASE FT_Mod_Err_Gzip
+
+#include FT_ERRORS_H
+
+
+#ifdef FT_CONFIG_OPTION_USE_ZLIB
+
+#ifdef FT_CONFIG_OPTION_PIC
+#error "gzip code does not support PIC yet"
+#endif
+
+#ifdef FT_CONFIG_OPTION_SYSTEM_ZLIB
+
+#include <zlib.h>
+
+#else /* !FT_CONFIG_OPTION_SYSTEM_ZLIB */
+
+ /* In this case, we include our own modified sources of the ZLib */
+ /* within the "ftgzip" component. The modifications were necessary */
+ /* to #include all files without conflicts, as well as preventing */
+ /* the definition of "extern" functions that may cause linking */
+ /* conflicts when a program is linked with both FreeType and the */
+ /* original ZLib. */
+
+#define NO_DUMMY_DECL
+#ifndef USE_ZLIB_ZCALLOC
+#define MY_ZCALLOC /* prevent all zcalloc() & zfree() in zutils.c */
+#endif
+
+#include "zlib.h"
+
+#undef SLOW
+#define SLOW 1 /* we can't use asm-optimized sources here! */
+
+#if defined( _MSC_VER ) /* Visual C++ (and Intel C++) */
+ /* We disable the warning `conversion from XXX to YYY, */
+ /* possible loss of data' in order to compile cleanly with */
+ /* the maximum level of warnings: zlib is non-FreeType */
+ /* code. */
+#pragma warning( push )
+#pragma warning( disable : 4244 )
+#endif /* _MSC_VER */
+
+ /* Urgh. `inflate_mask' must not be declared twice -- C++ doesn't like
+ this. We temporarily disable it and load all necessary header files. */
+#define NO_INFLATE_MASK
+#include "zutil.h"
+#include "inftrees.h"
+#include "infblock.h"
+#include "infcodes.h"
+#include "infutil.h"
+#undef NO_INFLATE_MASK
+
+ /* infutil.c must be included before infcodes.c */
+#include "zutil.c"
+#include "inftrees.c"
+#include "infutil.c"
+#include "infcodes.c"
+#include "infblock.c"
+#include "inflate.c"
+#include "adler32.c"
+
+#if defined( _MSC_VER )
+#pragma warning( pop )
+#endif
+
+#endif /* !FT_CONFIG_OPTION_SYSTEM_ZLIB */
+
+
+/***************************************************************************/
+/***************************************************************************/
+/***** *****/
+/***** Z L I B M E M O R Y M A N A G E M E N T *****/
+/***** *****/
+/***************************************************************************/
+/***************************************************************************/
+
+ /* it is better to use FreeType memory routines instead of raw
+ 'malloc/free' */
+
+ static voidpf
+ ft_gzip_alloc( FT_Memory memory,
+ uInt items,
+ uInt size )
+ {
+ FT_ULong sz = (FT_ULong)size * items;
+ FT_Error error;
+ FT_Pointer p = NULL;
+
+
+ (void)FT_ALLOC( p, sz );
+ return p;
+ }
+
+
+ static void
+ ft_gzip_free( FT_Memory memory,
+ voidpf address )
+ {
+ FT_MEM_FREE( address );
+ }
+
+
+#if !defined( FT_CONFIG_OPTION_SYSTEM_ZLIB ) && !defined( USE_ZLIB_ZCALLOC )
+
+ local voidpf
+ zcalloc ( voidpf opaque,
+ unsigned items,
+ unsigned size )
+ {
+ return ft_gzip_alloc( (FT_Memory)opaque, items, size );
+ }
+
+ local void
+ zcfree( voidpf opaque,
+ voidpf ptr )
+ {
+ ft_gzip_free( (FT_Memory)opaque, ptr );
+ }
+
+#endif /* !SYSTEM_ZLIB && !USE_ZLIB_ZCALLOC */
+
+
+/***************************************************************************/
+/***************************************************************************/
+/***** *****/
+/***** Z L I B F I L E D E S C R I P T O R *****/
+/***** *****/
+/***************************************************************************/
+/***************************************************************************/
+
+#define FT_GZIP_BUFFER_SIZE 4096
+
+ typedef struct FT_GZipFileRec_
+ {
+ FT_Stream source; /* parent/source stream */
+ FT_Stream stream; /* embedding stream */
+ FT_Memory memory; /* memory allocator */
+ z_stream zstream; /* zlib input stream */
+
+ FT_ULong start; /* starting position, after .gz header */
+ FT_Byte input[FT_GZIP_BUFFER_SIZE]; /* input read buffer */
+
+ FT_Byte buffer[FT_GZIP_BUFFER_SIZE]; /* output buffer */
+ FT_ULong pos; /* position in output */
+ FT_Byte* cursor;
+ FT_Byte* limit;
+
+ } FT_GZipFileRec, *FT_GZipFile;
+
+
+ /* gzip flag byte */
+#define FT_GZIP_ASCII_FLAG 0x01 /* bit 0 set: file probably ascii text */
+#define FT_GZIP_HEAD_CRC 0x02 /* bit 1 set: header CRC present */
+#define FT_GZIP_EXTRA_FIELD 0x04 /* bit 2 set: extra field present */
+#define FT_GZIP_ORIG_NAME 0x08 /* bit 3 set: original file name present */
+#define FT_GZIP_COMMENT 0x10 /* bit 4 set: file comment present */
+#define FT_GZIP_RESERVED 0xE0 /* bits 5..7: reserved */
+
+
+ /* check and skip .gz header - we don't support `transparent' compression */
+ static FT_Error
+ ft_gzip_check_header( FT_Stream stream )
+ {
+ FT_Error error;
+ FT_Byte head[4];
+
+
+ if ( FT_STREAM_SEEK( 0 ) ||
+ FT_STREAM_READ( head, 4 ) )
+ goto Exit;
+
+ /* head[0] && head[1] are the magic numbers; */
+ /* head[2] is the method, and head[3] the flags */
+ if ( head[0] != 0x1f ||
+ head[1] != 0x8b ||
+ head[2] != Z_DEFLATED ||
+ (head[3] & FT_GZIP_RESERVED) )
+ {
+ error = FT_THROW( Invalid_File_Format );
+ goto Exit;
+ }
+
+ /* skip time, xflags and os code */
+ (void)FT_STREAM_SKIP( 6 );
+
+ /* skip the extra field */
+ if ( head[3] & FT_GZIP_EXTRA_FIELD )
+ {
+ FT_UInt len;
+
+
+ if ( FT_READ_USHORT_LE( len ) ||
+ FT_STREAM_SKIP( len ) )
+ goto Exit;
+ }
+
+ /* skip original file name */
+ if ( head[3] & FT_GZIP_ORIG_NAME )
+ for (;;)
+ {
+ FT_UInt c;
+
+
+ if ( FT_READ_BYTE( c ) )
+ goto Exit;
+
+ if ( c == 0 )
+ break;
+ }
+
+ /* skip .gz comment */
+ if ( head[3] & FT_GZIP_COMMENT )
+ for (;;)
+ {
+ FT_UInt c;
+
+
+ if ( FT_READ_BYTE( c ) )
+ goto Exit;
+
+ if ( c == 0 )
+ break;
+ }
+
+ /* skip CRC */
+ if ( head[3] & FT_GZIP_HEAD_CRC )
+ if ( FT_STREAM_SKIP( 2 ) )
+ goto Exit;
+
+ Exit:
+ return error;
+ }
+
+
+ static FT_Error
+ ft_gzip_file_init( FT_GZipFile zip,
+ FT_Stream stream,
+ FT_Stream source )
+ {
+ z_stream* zstream = &zip->zstream;
+ FT_Error error = FT_Err_Ok;
+
+
+ zip->stream = stream;
+ zip->source = source;
+ zip->memory = stream->memory;
+
+ zip->limit = zip->buffer + FT_GZIP_BUFFER_SIZE;
+ zip->cursor = zip->limit;
+ zip->pos = 0;
+
+ /* check and skip .gz header */
+ {
+ stream = source;
+
+ error = ft_gzip_check_header( stream );
+ if ( error )
+ goto Exit;
+
+ zip->start = FT_STREAM_POS();
+ }
+
+ /* initialize zlib -- there is no zlib header in the compressed stream */
+ zstream->zalloc = (alloc_func)ft_gzip_alloc;
+ zstream->zfree = (free_func) ft_gzip_free;
+ zstream->opaque = stream->memory;
+
+ zstream->avail_in = 0;
+ zstream->next_in = zip->buffer;
+
+ if ( inflateInit2( zstream, -MAX_WBITS ) != Z_OK ||
+ zstream->next_in == NULL )
+ error = FT_THROW( Invalid_File_Format );
+
+ Exit:
+ return error;
+ }
+
+
+ static void
+ ft_gzip_file_done( FT_GZipFile zip )
+ {
+ z_stream* zstream = &zip->zstream;
+
+
+ inflateEnd( zstream );
+
+ /* clear the rest */
+ zstream->zalloc = NULL;
+ zstream->zfree = NULL;
+ zstream->opaque = NULL;
+ zstream->next_in = NULL;
+ zstream->next_out = NULL;
+ zstream->avail_in = 0;
+ zstream->avail_out = 0;
+
+ zip->memory = NULL;
+ zip->source = NULL;
+ zip->stream = NULL;
+ }
+
+
+ static FT_Error
+ ft_gzip_file_reset( FT_GZipFile zip )
+ {
+ FT_Stream stream = zip->source;
+ FT_Error error;
+
+
+ if ( !FT_STREAM_SEEK( zip->start ) )
+ {
+ z_stream* zstream = &zip->zstream;
+
+
+ inflateReset( zstream );
+
+ zstream->avail_in = 0;
+ zstream->next_in = zip->input;
+ zstream->avail_out = 0;
+ zstream->next_out = zip->buffer;
+
+ zip->limit = zip->buffer + FT_GZIP_BUFFER_SIZE;
+ zip->cursor = zip->limit;
+ zip->pos = 0;
+ }
+
+ return error;
+ }
+
+
+ static FT_Error
+ ft_gzip_file_fill_input( FT_GZipFile zip )
+ {
+ z_stream* zstream = &zip->zstream;
+ FT_Stream stream = zip->source;
+ FT_ULong size;
+
+
+ if ( stream->read )
+ {
+ size = stream->read( stream, stream->pos, zip->input,
+ FT_GZIP_BUFFER_SIZE );
+ if ( size == 0 )
+ return FT_THROW( Invalid_Stream_Operation );
+ }
+ else
+ {
+ size = stream->size - stream->pos;
+ if ( size > FT_GZIP_BUFFER_SIZE )
+ size = FT_GZIP_BUFFER_SIZE;
+
+ if ( size == 0 )
+ return FT_THROW( Invalid_Stream_Operation );
+
+ FT_MEM_COPY( zip->input, stream->base + stream->pos, size );
+ }
+ stream->pos += size;
+
+ zstream->next_in = zip->input;
+ zstream->avail_in = size;
+
+ return FT_Err_Ok;
+ }
+
+
+ static FT_Error
+ ft_gzip_file_fill_output( FT_GZipFile zip )
+ {
+ z_stream* zstream = &zip->zstream;
+ FT_Error error = FT_Err_Ok;
+
+
+ zip->cursor = zip->buffer;
+ zstream->next_out = zip->cursor;
+ zstream->avail_out = FT_GZIP_BUFFER_SIZE;
+
+ while ( zstream->avail_out > 0 )
+ {
+ int err;
+
+
+ if ( zstream->avail_in == 0 )
+ {
+ error = ft_gzip_file_fill_input( zip );
+ if ( error )
+ break;
+ }
+
+ err = inflate( zstream, Z_NO_FLUSH );
+
+ if ( err == Z_STREAM_END )
+ {
+ zip->limit = zstream->next_out;
+ if ( zip->limit == zip->cursor )
+ error = FT_THROW( Invalid_Stream_Operation );
+ break;
+ }
+ else if ( err != Z_OK )
+ {
+ error = FT_THROW( Invalid_Stream_Operation );
+ break;
+ }
+ }
+
+ return error;
+ }
+
+
+ /* fill output buffer; `count' must be <= FT_GZIP_BUFFER_SIZE */
+ static FT_Error
+ ft_gzip_file_skip_output( FT_GZipFile zip,
+ FT_ULong count )
+ {
+ FT_Error error = FT_Err_Ok;
+ FT_ULong delta;
+
+
+ for (;;)
+ {
+ delta = (FT_ULong)( zip->limit - zip->cursor );
+ if ( delta >= count )
+ delta = count;
+
+ zip->cursor += delta;
+ zip->pos += delta;
+
+ count -= delta;
+ if ( count == 0 )
+ break;
+
+ error = ft_gzip_file_fill_output( zip );
+ if ( error )
+ break;
+ }
+
+ return error;
+ }
+
+
+ static FT_ULong
+ ft_gzip_file_io( FT_GZipFile zip,
+ FT_ULong pos,
+ FT_Byte* buffer,
+ FT_ULong count )
+ {
+ FT_ULong result = 0;
+ FT_Error error;
+
+
+ /* Reset inflate stream if we're seeking backwards. */
+ /* Yes, that is not too efficient, but it saves memory :-) */
+ if ( pos < zip->pos )
+ {
+ error = ft_gzip_file_reset( zip );
+ if ( error )
+ goto Exit;
+ }
+
+ /* skip unwanted bytes */
+ if ( pos > zip->pos )
+ {
+ error = ft_gzip_file_skip_output( zip, (FT_ULong)( pos - zip->pos ) );
+ if ( error )
+ goto Exit;
+ }
+
+ if ( count == 0 )
+ goto Exit;
+
+ /* now read the data */
+ for (;;)
+ {
+ FT_ULong delta;
+
+
+ delta = (FT_ULong)( zip->limit - zip->cursor );
+ if ( delta >= count )
+ delta = count;
+
+ FT_MEM_COPY( buffer, zip->cursor, delta );
+ buffer += delta;
+ result += delta;
+ zip->cursor += delta;
+ zip->pos += delta;
+
+ count -= delta;
+ if ( count == 0 )
+ break;
+
+ error = ft_gzip_file_fill_output( zip );
+ if ( error )
+ break;
+ }
+
+ Exit:
+ return result;
+ }
+
+
+/***************************************************************************/
+/***************************************************************************/
+/***** *****/
+/***** G Z E M B E D D I N G S T R E A M *****/
+/***** *****/
+/***************************************************************************/
+/***************************************************************************/
+
+ static void
+ ft_gzip_stream_close( FT_Stream stream )
+ {
+ FT_GZipFile zip = (FT_GZipFile)stream->descriptor.pointer;
+ FT_Memory memory = stream->memory;
+
+
+ if ( zip )
+ {
+ /* finalize gzip file descriptor */
+ ft_gzip_file_done( zip );
+
+ FT_FREE( zip );
+
+ stream->descriptor.pointer = NULL;
+ }
+ }
+
+
+ static FT_ULong
+ ft_gzip_stream_io( FT_Stream stream,
+ FT_ULong pos,
+ FT_Byte* buffer,
+ FT_ULong count )
+ {
+ FT_GZipFile zip = (FT_GZipFile)stream->descriptor.pointer;
+
+
+ return ft_gzip_file_io( zip, pos, buffer, count );
+ }
+
+
+ static FT_ULong
+ ft_gzip_get_uncompressed_size( FT_Stream stream )
+ {
+ FT_Error error;
+ FT_ULong old_pos;
+ FT_ULong result = 0;
+
+
+ old_pos = stream->pos;
+ if ( !FT_Stream_Seek( stream, stream->size - 4 ) )
+ {
+ result = FT_Stream_ReadULong( stream, &error );
+ if ( error )
+ result = 0;
+
+ (void)FT_Stream_Seek( stream, old_pos );
+ }
+
+ return result;
+ }
+
+
+ /* documentation is in ftgzip.h */
+
+ FT_EXPORT_DEF( FT_Error )
+ FT_Stream_OpenGzip( FT_Stream stream,
+ FT_Stream source )
+ {
+ FT_Error error;
+ FT_Memory memory = source->memory;
+ FT_GZipFile zip = NULL;
+
+
+ /*
+ * check the header right now; this prevents allocating un-necessary
+ * objects when we don't need them
+ */
+ error = ft_gzip_check_header( source );
+ if ( error )
+ goto Exit;
+
+ FT_ZERO( stream );
+ stream->memory = memory;
+
+ if ( !FT_QNEW( zip ) )
+ {
+ error = ft_gzip_file_init( zip, stream, source );
+ if ( error )
+ {
+ FT_FREE( zip );
+ goto Exit;
+ }
+
+ stream->descriptor.pointer = zip;
+ }
+
+ /*
+ * We use the following trick to try to dramatically improve the
+ * performance while dealing with small files. If the original stream
+ * size is less than a certain threshold, we try to load the whole font
+ * file into memory. This saves us from using the 32KB buffer needed
+ * to inflate the file, plus the two 4KB intermediate input/output
+ * buffers used in the `FT_GZipFile' structure.
+ */
+ {
+ FT_ULong zip_size = ft_gzip_get_uncompressed_size( source );
+
+
+ if ( zip_size != 0 && zip_size < 40 * 1024 )
+ {
+ FT_Byte* zip_buff = NULL;
+
+
+ if ( !FT_ALLOC( zip_buff, zip_size ) )
+ {
+ FT_ULong count;
+
+
+ count = ft_gzip_file_io( zip, 0, zip_buff, zip_size );
+ if ( count == zip_size )
+ {
+ ft_gzip_file_done( zip );
+ FT_FREE( zip );
+
+ stream->descriptor.pointer = NULL;
+
+ stream->size = zip_size;
+ stream->pos = 0;
+ stream->base = zip_buff;
+ stream->read = NULL;
+ stream->close = ft_gzip_stream_close;
+
+ goto Exit;
+ }
+
+ ft_gzip_file_io( zip, 0, NULL, 0 );
+ FT_FREE( zip_buff );
+ }
+ error = FT_Err_Ok;
+ }
+ }
+
+ stream->size = 0x7FFFFFFFL; /* don't know the real size! */
+ stream->pos = 0;
+ stream->base = 0;
+ stream->read = ft_gzip_stream_io;
+ stream->close = ft_gzip_stream_close;
+
+ Exit:
+ return error;
+ }
+
+
+ /* documentation is in ftgzip.h */
+
+ FT_EXPORT_DEF( FT_Error )
+ FT_Gzip_Uncompress( FT_Memory memory,
+ FT_Byte* output,
+ FT_ULong* output_len,
+ const FT_Byte* input,
+ FT_ULong input_len )
+ {
+ z_stream stream;
+ int err;
+
+
+ /* this function is modeled after zlib's `uncompress' function */
+
+ stream.next_in = (Bytef*)input;
+ stream.avail_in = (uInt)input_len;
+
+ stream.next_out = output;
+ stream.avail_out = (uInt)*output_len;
+
+ stream.zalloc = (alloc_func)ft_gzip_alloc;
+ stream.zfree = (free_func) ft_gzip_free;
+ stream.opaque = memory;
+
+ err = inflateInit2( &stream, MAX_WBITS );
+ if ( err != Z_OK )
+ return FT_THROW( Invalid_Argument );
+
+ err = inflate( &stream, Z_FINISH );
+ if ( err != Z_STREAM_END )
+ {
+ inflateEnd( &stream );
+ if ( err == Z_OK )
+ err = Z_BUF_ERROR;
+ }
+ else
+ {
+ *output_len = stream.total_out;
+
+ err = inflateEnd( &stream );
+ }
+
+ if ( err == Z_MEM_ERROR )
+ return FT_THROW( Out_Of_Memory );
+
+ if ( err == Z_BUF_ERROR )
+ return FT_THROW( Array_Too_Large );
+
+ if ( err == Z_DATA_ERROR )
+ return FT_THROW( Invalid_Table );
+
+ return FT_Err_Ok;
+ }
+
+
+#else /* !FT_CONFIG_OPTION_USE_ZLIB */
+
+ FT_EXPORT_DEF( FT_Error )
+ FT_Stream_OpenGzip( FT_Stream stream,
+ FT_Stream source )
+ {
+ FT_UNUSED( stream );
+ FT_UNUSED( source );
+
+ return FT_THROW( Unimplemented_Feature );
+ }
+
+
+ FT_EXPORT_DEF( FT_Error )
+ FT_Gzip_Uncompress( FT_Memory memory,
+ FT_Byte* output,
+ FT_ULong* output_len,
+ const FT_Byte* input,
+ FT_ULong input_len )
+ {
+ FT_UNUSED( memory );
+ FT_UNUSED( output );
+ FT_UNUSED( output_len );
+ FT_UNUSED( input );
+ FT_UNUSED( input_len );
+
+ return FT_THROW( Unimplemented_Feature );
+ }
+
+#endif /* !FT_CONFIG_OPTION_USE_ZLIB */
+
+
+/* END */
diff --git a/src/gzip/infblock.c b/src/gzip/infblock.c
new file mode 100644
index 0000000..d6e2dc2
--- /dev/null
+++ b/src/gzip/infblock.c
@@ -0,0 +1,387 @@
+/* infblock.c -- interpret and process block types to last block
+ * Copyright (C) 1995-2002 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+#include "zutil.h"
+#include "infblock.h"
+#include "inftrees.h"
+#include "infcodes.h"
+#include "infutil.h"
+
+
+/* simplify the use of the inflate_huft type with some defines */
+#define exop word.what.Exop
+#define bits word.what.Bits
+
+/* Table for deflate from PKZIP's appnote.txt. */
+local const uInt border[] = { /* Order of the bit length code lengths */
+ 16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15};
+
+/*
+ Notes beyond the 1.93a appnote.txt:
+
+ 1. Distance pointers never point before the beginning of the output
+ stream.
+ 2. Distance pointers can point back across blocks, up to 32k away.
+ 3. There is an implied maximum of 7 bits for the bit length table and
+ 15 bits for the actual data.
+ 4. If only one code exists, then it is encoded using one bit. (Zero
+ would be more efficient, but perhaps a little confusing.) If two
+ codes exist, they are coded using one bit each (0 and 1).
+ 5. There is no way of sending zero distance codes--a dummy must be
+ sent if there are none. (History: a pre 2.0 version of PKZIP would
+ store blocks with no distance codes, but this was discovered to be
+ too harsh a criterion.) Valid only for 1.93a. 2.04c does allow
+ zero distance codes, which is sent as one code of zero bits in
+ length.
+ 6. There are up to 286 literal/length codes. Code 256 represents the
+ end-of-block. Note however that the static length tree defines
+ 288 codes just to fill out the Huffman codes. Codes 286 and 287
+ cannot be used though, since there is no length base or extra bits
+ defined for them. Similarily, there are up to 30 distance codes.
+ However, static trees define 32 codes (all 5 bits) to fill out the
+ Huffman codes, but the last two had better not show up in the data.
+ 7. Unzip can check dynamic Huffman blocks for complete code sets.
+ The exception is that a single code would not be complete (see #4).
+ 8. The five bits following the block type is really the number of
+ literal codes sent minus 257.
+ 9. Length codes 8,16,16 are interpreted as 13 length codes of 8 bits
+ (1+6+6). Therefore, to output three times the length, you output
+ three codes (1+1+1), whereas to output four times the same length,
+ you only need two codes (1+3). Hmm.
+ 10. In the tree reconstruction algorithm, Code = Code + Increment
+ only if BitLength(i) is not zero. (Pretty obvious.)
+ 11. Correction: 4 Bits: # of Bit Length codes - 4 (4 - 19)
+ 12. Note: length code 284 can represent 227-258, but length code 285
+ really is 258. The last length deserves its own, short code
+ since it gets used a lot in very redundant files. The length
+ 258 is special since 258 - 3 (the min match length) is 255.
+ 13. The literal/length and distance code bit lengths are read as a
+ single stream of lengths. It is possible (and advantageous) for
+ a repeat code (16, 17, or 18) to go across the boundary between
+ the two sets of lengths.
+ */
+
+
+local void inflate_blocks_reset( /* s, z, c) */
+inflate_blocks_statef *s,
+z_streamp z,
+uLongf *c )
+{
+ if (c != Z_NULL)
+ *c = s->check;
+ if (s->mode == BTREE || s->mode == DTREE)
+ ZFREE(z, s->sub.trees.blens);
+ if (s->mode == CODES)
+ inflate_codes_free(s->sub.decode.codes, z);
+ s->mode = TYPE;
+ s->bitk = 0;
+ s->bitb = 0;
+ s->read = s->write = s->window;
+ if (s->checkfn != Z_NULL)
+ z->adler = s->check = (*s->checkfn)(0L, (const Bytef *)Z_NULL, 0);
+ Tracev((stderr, "inflate: blocks reset\n"));
+}
+
+
+local inflate_blocks_statef *inflate_blocks_new( /* z, c, w) */
+z_streamp z,
+check_func c,
+uInt w )
+{
+ inflate_blocks_statef *s;
+
+ if ((s = (inflate_blocks_statef *)ZALLOC
+ (z,1,sizeof(struct inflate_blocks_state))) == Z_NULL)
+ return s;
+ if ((s->hufts =
+ (inflate_huft *)ZALLOC(z, sizeof(inflate_huft), MANY)) == Z_NULL)
+ {
+ ZFREE(z, s);
+ return Z_NULL;
+ }
+ if ((s->window = (Bytef *)ZALLOC(z, 1, w)) == Z_NULL)
+ {
+ ZFREE(z, s->hufts);
+ ZFREE(z, s);
+ return Z_NULL;
+ }
+ s->end = s->window + w;
+ s->checkfn = c;
+ s->mode = TYPE;
+ Tracev((stderr, "inflate: blocks allocated\n"));
+ inflate_blocks_reset(s, z, Z_NULL);
+ return s;
+}
+
+
+local int inflate_blocks( /* s, z, r) */
+inflate_blocks_statef *s,
+z_streamp z,
+int r )
+{
+ uInt t; /* temporary storage */
+ uLong b; /* bit buffer */
+ uInt k; /* bits in bit buffer */
+ Bytef *p; /* input data pointer */
+ uInt n; /* bytes available there */
+ Bytef *q; /* output window write pointer */
+ uInt m; /* bytes to end of window or read pointer */
+
+ /* copy input/output information to locals (UPDATE macro restores) */
+ LOAD
+
+ /* process input based on current state */
+ while (1) switch (s->mode)
+ {
+ case TYPE:
+ NEEDBITS(3)
+ t = (uInt)b & 7;
+ s->last = t & 1;
+ switch (t >> 1)
+ {
+ case 0: /* stored */
+ Tracev((stderr, "inflate: stored block%s\n",
+ s->last ? " (last)" : ""));
+ DUMPBITS(3)
+ t = k & 7; /* go to byte boundary */
+ DUMPBITS(t)
+ s->mode = LENS; /* get length of stored block */
+ break;
+ case 1: /* fixed */
+ Tracev((stderr, "inflate: fixed codes block%s\n",
+ s->last ? " (last)" : ""));
+ {
+ uInt bl, bd;
+ inflate_huft *tl, *td;
+
+ inflate_trees_fixed(&bl, &bd, (const inflate_huft**)&tl,
+ (const inflate_huft**)&td, z);
+ s->sub.decode.codes = inflate_codes_new(bl, bd, tl, td, z);
+ if (s->sub.decode.codes == Z_NULL)
+ {
+ r = Z_MEM_ERROR;
+ LEAVE
+ }
+ }
+ DUMPBITS(3)
+ s->mode = CODES;
+ break;
+ case 2: /* dynamic */
+ Tracev((stderr, "inflate: dynamic codes block%s\n",
+ s->last ? " (last)" : ""));
+ DUMPBITS(3)
+ s->mode = TABLE;
+ break;
+ case 3: /* illegal */
+ DUMPBITS(3)
+ s->mode = BAD;
+ z->msg = (char*)"invalid block type";
+ r = Z_DATA_ERROR;
+ LEAVE
+ }
+ break;
+ case LENS:
+ NEEDBITS(32)
+ if ((((~b) >> 16) & 0xffff) != (b & 0xffff))
+ {
+ s->mode = BAD;
+ z->msg = (char*)"invalid stored block lengths";
+ r = Z_DATA_ERROR;
+ LEAVE
+ }
+ s->sub.left = (uInt)b & 0xffff;
+ b = k = 0; /* dump bits */
+ Tracev((stderr, "inflate: stored length %u\n", s->sub.left));
+ s->mode = s->sub.left ? STORED : (s->last ? DRY : TYPE);
+ break;
+ case STORED:
+ if (n == 0)
+ LEAVE
+ NEEDOUT
+ t = s->sub.left;
+ if (t > n) t = n;
+ if (t > m) t = m;
+ zmemcpy(q, p, t);
+ p += t; n -= t;
+ q += t; m -= t;
+ if ((s->sub.left -= t) != 0)
+ break;
+ Tracev((stderr, "inflate: stored end, %lu total out\n",
+ z->total_out + (q >= s->read ? q - s->read :
+ (s->end - s->read) + (q - s->window))));
+ s->mode = s->last ? DRY : TYPE;
+ break;
+ case TABLE:
+ NEEDBITS(14)
+ s->sub.trees.table = t = (uInt)b & 0x3fff;
+#ifndef PKZIP_BUG_WORKAROUND
+ if ((t & 0x1f) > 29 || ((t >> 5) & 0x1f) > 29)
+ {
+ s->mode = BAD;
+ z->msg = (char*)"too many length or distance symbols";
+ r = Z_DATA_ERROR;
+ LEAVE
+ }
+#endif
+ t = 258 + (t & 0x1f) + ((t >> 5) & 0x1f);
+ if ((s->sub.trees.blens = (uIntf*)ZALLOC(z, t, sizeof(uInt))) == Z_NULL)
+ {
+ r = Z_MEM_ERROR;
+ LEAVE
+ }
+ DUMPBITS(14)
+ s->sub.trees.index = 0;
+ Tracev((stderr, "inflate: table sizes ok\n"));
+ s->mode = BTREE;
+ case BTREE:
+ while (s->sub.trees.index < 4 + (s->sub.trees.table >> 10))
+ {
+ NEEDBITS(3)
+ s->sub.trees.blens[border[s->sub.trees.index++]] = (uInt)b & 7;
+ DUMPBITS(3)
+ }
+ while (s->sub.trees.index < 19)
+ s->sub.trees.blens[border[s->sub.trees.index++]] = 0;
+ s->sub.trees.bb = 7;
+ t = inflate_trees_bits(s->sub.trees.blens, &s->sub.trees.bb,
+ &s->sub.trees.tb, s->hufts, z);
+ if (t != Z_OK)
+ {
+ r = t;
+ if (r == Z_DATA_ERROR)
+ {
+ ZFREE(z, s->sub.trees.blens);
+ s->mode = BAD;
+ }
+ LEAVE
+ }
+ s->sub.trees.index = 0;
+ Tracev((stderr, "inflate: bits tree ok\n"));
+ s->mode = DTREE;
+ case DTREE:
+ while (t = s->sub.trees.table,
+ s->sub.trees.index < 258 + (t & 0x1f) + ((t >> 5) & 0x1f))
+ {
+ inflate_huft *h;
+ uInt i, j, c;
+
+ t = s->sub.trees.bb;
+ NEEDBITS(t)
+ h = s->sub.trees.tb + ((uInt)b & inflate_mask[t]);
+ t = h->bits;
+ c = h->base;
+ if (c < 16)
+ {
+ DUMPBITS(t)
+ s->sub.trees.blens[s->sub.trees.index++] = c;
+ }
+ else /* c == 16..18 */
+ {
+ i = c == 18 ? 7 : c - 14;
+ j = c == 18 ? 11 : 3;
+ NEEDBITS(t + i)
+ DUMPBITS(t)
+ j += (uInt)b & inflate_mask[i];
+ DUMPBITS(i)
+ i = s->sub.trees.index;
+ t = s->sub.trees.table;
+ if (i + j > 258 + (t & 0x1f) + ((t >> 5) & 0x1f) ||
+ (c == 16 && i < 1))
+ {
+ ZFREE(z, s->sub.trees.blens);
+ s->mode = BAD;
+ z->msg = (char*)"invalid bit length repeat";
+ r = Z_DATA_ERROR;
+ LEAVE
+ }
+ c = c == 16 ? s->sub.trees.blens[i - 1] : 0;
+ do {
+ s->sub.trees.blens[i++] = c;
+ } while (--j);
+ s->sub.trees.index = i;
+ }
+ }
+ s->sub.trees.tb = Z_NULL;
+ {
+ uInt bl, bd;
+ inflate_huft *tl, *td;
+ inflate_codes_statef *c;
+
+ bl = 9; /* must be <= 9 for lookahead assumptions */
+ bd = 6; /* must be <= 9 for lookahead assumptions */
+ t = s->sub.trees.table;
+ t = inflate_trees_dynamic(257 + (t & 0x1f), 1 + ((t >> 5) & 0x1f),
+ s->sub.trees.blens, &bl, &bd, &tl, &td,
+ s->hufts, z);
+ if (t != Z_OK)
+ {
+ if (t == (uInt)Z_DATA_ERROR)
+ {
+ ZFREE(z, s->sub.trees.blens);
+ s->mode = BAD;
+ }
+ r = t;
+ LEAVE
+ }
+ Tracev((stderr, "inflate: trees ok\n"));
+ if ((c = inflate_codes_new(bl, bd, tl, td, z)) == Z_NULL)
+ {
+ r = Z_MEM_ERROR;
+ LEAVE
+ }
+ s->sub.decode.codes = c;
+ }
+ ZFREE(z, s->sub.trees.blens);
+ s->mode = CODES;
+ case CODES:
+ UPDATE
+ if ((r = inflate_codes(s, z, r)) != Z_STREAM_END)
+ return inflate_flush(s, z, r);
+ r = Z_OK;
+ inflate_codes_free(s->sub.decode.codes, z);
+ LOAD
+ Tracev((stderr, "inflate: codes end, %lu total out\n",
+ z->total_out + (q >= s->read ? q - s->read :
+ (s->end - s->read) + (q - s->window))));
+ if (!s->last)
+ {
+ s->mode = TYPE;
+ break;
+ }
+ s->mode = DRY;
+ case DRY:
+ FLUSH
+ if (s->read != s->write)
+ LEAVE
+ s->mode = DONE;
+ case DONE:
+ r = Z_STREAM_END;
+ LEAVE
+ case BAD:
+ r = Z_DATA_ERROR;
+ LEAVE
+ default:
+ r = Z_STREAM_ERROR;
+ LEAVE
+ }
+#ifdef NEED_DUMMY_RETURN
+ return 0;
+#endif
+}
+
+
+local int inflate_blocks_free( /* s, z) */
+inflate_blocks_statef *s,
+z_streamp z )
+{
+ inflate_blocks_reset(s, z, Z_NULL);
+ ZFREE(z, s->window);
+ ZFREE(z, s->hufts);
+ ZFREE(z, s);
+ Tracev((stderr, "inflate: blocks freed\n"));
+ return Z_OK;
+}
+
+
diff --git a/src/gzip/infblock.h b/src/gzip/infblock.h
new file mode 100644
index 0000000..c2535a1
--- /dev/null
+++ b/src/gzip/infblock.h
@@ -0,0 +1,36 @@
+/* infblock.h -- header to use infblock.c
+ * Copyright (C) 1995-2002 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* WARNING: this file should *not* be used by applications. It is
+ part of the implementation of the compression library and is
+ subject to change. Applications should only use zlib.h.
+ */
+
+#ifndef _INFBLOCK_H
+#define _INFBLOCK_H
+
+struct inflate_blocks_state;
+typedef struct inflate_blocks_state FAR inflate_blocks_statef;
+
+local inflate_blocks_statef * inflate_blocks_new OF((
+ z_streamp z,
+ check_func c, /* check function */
+ uInt w)); /* window size */
+
+local int inflate_blocks OF((
+ inflate_blocks_statef *,
+ z_streamp ,
+ int)); /* initial return code */
+
+local void inflate_blocks_reset OF((
+ inflate_blocks_statef *,
+ z_streamp ,
+ uLongf *)); /* check value on output */
+
+local int inflate_blocks_free OF((
+ inflate_blocks_statef *,
+ z_streamp));
+
+#endif /* _INFBLOCK_H */
diff --git a/src/gzip/infcodes.c b/src/gzip/infcodes.c
new file mode 100644
index 0000000..f7bfd58
--- /dev/null
+++ b/src/gzip/infcodes.c
@@ -0,0 +1,250 @@
+/* infcodes.c -- process literals and length/distance pairs
+ * Copyright (C) 1995-2002 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+#include "zutil.h"
+#include "inftrees.h"
+#include "infblock.h"
+#include "infcodes.h"
+#include "infutil.h"
+
+/* simplify the use of the inflate_huft type with some defines */
+#define exop word.what.Exop
+#define bits word.what.Bits
+
+typedef enum { /* waiting for "i:"=input, "o:"=output, "x:"=nothing */
+ START, /* x: set up for LEN */
+ LEN, /* i: get length/literal/eob next */
+ LENEXT, /* i: getting length extra (have base) */
+ DIST, /* i: get distance next */
+ DISTEXT, /* i: getting distance extra */
+ COPY, /* o: copying bytes in window, waiting for space */
+ LIT, /* o: got literal, waiting for output space */
+ WASH, /* o: got eob, possibly still output waiting */
+ END, /* x: got eob and all data flushed */
+ BADCODE} /* x: got error */
+inflate_codes_mode;
+
+/* inflate codes private state */
+struct inflate_codes_state {
+
+ /* mode */
+ inflate_codes_mode mode; /* current inflate_codes mode */
+
+ /* mode dependent information */
+ uInt len;
+ union {
+ struct {
+ inflate_huft *tree; /* pointer into tree */
+ uInt need; /* bits needed */
+ } code; /* if LEN or DIST, where in tree */
+ uInt lit; /* if LIT, literal */
+ struct {
+ uInt get; /* bits to get for extra */
+ uInt dist; /* distance back to copy from */
+ } copy; /* if EXT or COPY, where and how much */
+ } sub; /* submode */
+
+ /* mode independent information */
+ Byte lbits; /* ltree bits decoded per branch */
+ Byte dbits; /* dtree bits decoder per branch */
+ inflate_huft *ltree; /* literal/length/eob tree */
+ inflate_huft *dtree; /* distance tree */
+
+};
+
+
+local inflate_codes_statef *inflate_codes_new( /* bl, bd, tl, td, z) */
+uInt bl, uInt bd,
+inflate_huft *tl,
+inflate_huft *td, /* need separate declaration for Borland C++ */
+z_streamp z )
+{
+ inflate_codes_statef *c;
+
+ if ((c = (inflate_codes_statef *)
+ ZALLOC(z,1,sizeof(struct inflate_codes_state))) != Z_NULL)
+ {
+ c->mode = START;
+ c->lbits = (Byte)bl;
+ c->dbits = (Byte)bd;
+ c->ltree = tl;
+ c->dtree = td;
+ Tracev((stderr, "inflate: codes new\n"));
+ }
+ return c;
+}
+
+
+local int inflate_codes( /* s, z, r) */
+inflate_blocks_statef *s,
+z_streamp z,
+int r )
+{
+ uInt j; /* temporary storage */
+ inflate_huft *t; /* temporary pointer */
+ uInt e; /* extra bits or operation */
+ uLong b; /* bit buffer */
+ uInt k; /* bits in bit buffer */
+ Bytef *p; /* input data pointer */
+ uInt n; /* bytes available there */
+ Bytef *q; /* output window write pointer */
+ uInt m; /* bytes to end of window or read pointer */
+ Bytef *f; /* pointer to copy strings from */
+ inflate_codes_statef *c = s->sub.decode.codes; /* codes state */
+
+ /* copy input/output information to locals (UPDATE macro restores) */
+ LOAD
+
+ /* process input and output based on current state */
+ while (1) switch (c->mode)
+ { /* waiting for "i:"=input, "o:"=output, "x:"=nothing */
+ case START: /* x: set up for LEN */
+#ifndef SLOW
+ if (m >= 258 && n >= 10)
+ {
+ UPDATE
+ r = inflate_fast(c->lbits, c->dbits, c->ltree, c->dtree, s, z);
+ LOAD
+ if (r != Z_OK)
+ {
+ c->mode = r == Z_STREAM_END ? WASH : BADCODE;
+ break;
+ }
+ }
+#endif /* !SLOW */
+ c->sub.code.need = c->lbits;
+ c->sub.code.tree = c->ltree;
+ c->mode = LEN;
+ case LEN: /* i: get length/literal/eob next */
+ j = c->sub.code.need;
+ NEEDBITS(j)
+ t = c->sub.code.tree + ((uInt)b & inflate_mask[j]);
+ DUMPBITS(t->bits)
+ e = (uInt)(t->exop);
+ if (e == 0) /* literal */
+ {
+ c->sub.lit = t->base;
+ Tracevv((stderr, t->base >= 0x20 && t->base < 0x7f ?
+ "inflate: literal '%c'\n" :
+ "inflate: literal 0x%02x\n", t->base));
+ c->mode = LIT;
+ break;
+ }
+ if (e & 16) /* length */
+ {
+ c->sub.copy.get = e & 15;
+ c->len = t->base;
+ c->mode = LENEXT;
+ break;
+ }
+ if ((e & 64) == 0) /* next table */
+ {
+ c->sub.code.need = e;
+ c->sub.code.tree = t + t->base;
+ break;
+ }
+ if (e & 32) /* end of block */
+ {
+ Tracevv((stderr, "inflate: end of block\n"));
+ c->mode = WASH;
+ break;
+ }
+ c->mode = BADCODE; /* invalid code */
+ z->msg = (char*)"invalid literal/length code";
+ r = Z_DATA_ERROR;
+ LEAVE
+ case LENEXT: /* i: getting length extra (have base) */
+ j = c->sub.copy.get;
+ NEEDBITS(j)
+ c->len += (uInt)b & inflate_mask[j];
+ DUMPBITS(j)
+ c->sub.code.need = c->dbits;
+ c->sub.code.tree = c->dtree;
+ Tracevv((stderr, "inflate: length %u\n", c->len));
+ c->mode = DIST;
+ case DIST: /* i: get distance next */
+ j = c->sub.code.need;
+ NEEDBITS(j)
+ t = c->sub.code.tree + ((uInt)b & inflate_mask[j]);
+ DUMPBITS(t->bits)
+ e = (uInt)(t->exop);
+ if (e & 16) /* distance */
+ {
+ c->sub.copy.get = e & 15;
+ c->sub.copy.dist = t->base;
+ c->mode = DISTEXT;
+ break;
+ }
+ if ((e & 64) == 0) /* next table */
+ {
+ c->sub.code.need = e;
+ c->sub.code.tree = t + t->base;
+ break;
+ }
+ c->mode = BADCODE; /* invalid code */
+ z->msg = (char*)"invalid distance code";
+ r = Z_DATA_ERROR;
+ LEAVE
+ case DISTEXT: /* i: getting distance extra */
+ j = c->sub.copy.get;
+ NEEDBITS(j)
+ c->sub.copy.dist += (uInt)b & inflate_mask[j];
+ DUMPBITS(j)
+ Tracevv((stderr, "inflate: distance %u\n", c->sub.copy.dist));
+ c->mode = COPY;
+ case COPY: /* o: copying bytes in window, waiting for space */
+ f = q - c->sub.copy.dist;
+ while (f < s->window) /* modulo window size-"while" instead */
+ f += s->end - s->window; /* of "if" handles invalid distances */
+ while (c->len)
+ {
+ NEEDOUT
+ OUTBYTE(*f++)
+ if (f == s->end)
+ f = s->window;
+ c->len--;
+ }
+ c->mode = START;
+ break;
+ case LIT: /* o: got literal, waiting for output space */
+ NEEDOUT
+ OUTBYTE(c->sub.lit)
+ c->mode = START;
+ break;
+ case WASH: /* o: got eob, possibly more output */
+ if (k > 7) /* return unused byte, if any */
+ {
+ Assert(k < 16, "inflate_codes grabbed too many bytes")
+ k -= 8;
+ n++;
+ p--; /* can always return one */
+ }
+ FLUSH
+ if (s->read != s->write)
+ LEAVE
+ c->mode = END;
+ case END:
+ r = Z_STREAM_END;
+ LEAVE
+ case BADCODE: /* x: got error */
+ r = Z_DATA_ERROR;
+ LEAVE
+ default:
+ r = Z_STREAM_ERROR;
+ LEAVE
+ }
+#ifdef NEED_DUMMY_RETURN
+ return Z_STREAM_ERROR; /* Some dumb compilers complain without this */
+#endif
+}
+
+
+local void inflate_codes_free( /* c, z) */
+inflate_codes_statef *c,
+z_streamp z )
+{
+ ZFREE(z, c);
+ Tracev((stderr, "inflate: codes free\n"));
+}
diff --git a/src/gzip/infcodes.h b/src/gzip/infcodes.h
new file mode 100644
index 0000000..154d7f8
--- /dev/null
+++ b/src/gzip/infcodes.h
@@ -0,0 +1,31 @@
+/* infcodes.h -- header to use infcodes.c
+ * Copyright (C) 1995-2002 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* WARNING: this file should *not* be used by applications. It is
+ part of the implementation of the compression library and is
+ subject to change. Applications should only use zlib.h.
+ */
+
+#ifndef _INFCODES_H
+#define _INFCODES_H
+
+struct inflate_codes_state;
+typedef struct inflate_codes_state FAR inflate_codes_statef;
+
+local inflate_codes_statef *inflate_codes_new OF((
+ uInt, uInt,
+ inflate_huft *, inflate_huft *,
+ z_streamp ));
+
+local int inflate_codes OF((
+ inflate_blocks_statef *,
+ z_streamp ,
+ int));
+
+local void inflate_codes_free OF((
+ inflate_codes_statef *,
+ z_streamp ));
+
+#endif /* _INFCODES_H */
diff --git a/src/gzip/inffixed.h b/src/gzip/inffixed.h
new file mode 100644
index 0000000..4d4760e
--- /dev/null
+++ b/src/gzip/inffixed.h
@@ -0,0 +1,151 @@
+/* inffixed.h -- table for decoding fixed codes
+ * Generated automatically by the maketree.c program
+ */
+
+/* WARNING: this file should *not* be used by applications. It is
+ part of the implementation of the compression library and is
+ subject to change. Applications should only use zlib.h.
+ */
+
+local const uInt fixed_bl = 9;
+local const uInt fixed_bd = 5;
+local const inflate_huft fixed_tl[] = {
+ {{{96,7}},256}, {{{0,8}},80}, {{{0,8}},16}, {{{84,8}},115},
+ {{{82,7}},31}, {{{0,8}},112}, {{{0,8}},48}, {{{0,9}},192},
+ {{{80,7}},10}, {{{0,8}},96}, {{{0,8}},32}, {{{0,9}},160},
+ {{{0,8}},0}, {{{0,8}},128}, {{{0,8}},64}, {{{0,9}},224},
+ {{{80,7}},6}, {{{0,8}},88}, {{{0,8}},24}, {{{0,9}},144},
+ {{{83,7}},59}, {{{0,8}},120}, {{{0,8}},56}, {{{0,9}},208},
+ {{{81,7}},17}, {{{0,8}},104}, {{{0,8}},40}, {{{0,9}},176},
+ {{{0,8}},8}, {{{0,8}},136}, {{{0,8}},72}, {{{0,9}},240},
+ {{{80,7}},4}, {{{0,8}},84}, {{{0,8}},20}, {{{85,8}},227},
+ {{{83,7}},43}, {{{0,8}},116}, {{{0,8}},52}, {{{0,9}},200},
+ {{{81,7}},13}, {{{0,8}},100}, {{{0,8}},36}, {{{0,9}},168},
+ {{{0,8}},4}, {{{0,8}},132}, {{{0,8}},68}, {{{0,9}},232},
+ {{{80,7}},8}, {{{0,8}},92}, {{{0,8}},28}, {{{0,9}},152},
+ {{{84,7}},83}, {{{0,8}},124}, {{{0,8}},60}, {{{0,9}},216},
+ {{{82,7}},23}, {{{0,8}},108}, {{{0,8}},44}, {{{0,9}},184},
+ {{{0,8}},12}, {{{0,8}},140}, {{{0,8}},76}, {{{0,9}},248},
+ {{{80,7}},3}, {{{0,8}},82}, {{{0,8}},18}, {{{85,8}},163},
+ {{{83,7}},35}, {{{0,8}},114}, {{{0,8}},50}, {{{0,9}},196},
+ {{{81,7}},11}, {{{0,8}},98}, {{{0,8}},34}, {{{0,9}},164},
+ {{{0,8}},2}, {{{0,8}},130}, {{{0,8}},66}, {{{0,9}},228},
+ {{{80,7}},7}, {{{0,8}},90}, {{{0,8}},26}, {{{0,9}},148},
+ {{{84,7}},67}, {{{0,8}},122}, {{{0,8}},58}, {{{0,9}},212},
+ {{{82,7}},19}, {{{0,8}},106}, {{{0,8}},42}, {{{0,9}},180},
+ {{{0,8}},10}, {{{0,8}},138}, {{{0,8}},74}, {{{0,9}},244},
+ {{{80,7}},5}, {{{0,8}},86}, {{{0,8}},22}, {{{192,8}},0},
+ {{{83,7}},51}, {{{0,8}},118}, {{{0,8}},54}, {{{0,9}},204},
+ {{{81,7}},15}, {{{0,8}},102}, {{{0,8}},38}, {{{0,9}},172},
+ {{{0,8}},6}, {{{0,8}},134}, {{{0,8}},70}, {{{0,9}},236},
+ {{{80,7}},9}, {{{0,8}},94}, {{{0,8}},30}, {{{0,9}},156},
+ {{{84,7}},99}, {{{0,8}},126}, {{{0,8}},62}, {{{0,9}},220},
+ {{{82,7}},27}, {{{0,8}},110}, {{{0,8}},46}, {{{0,9}},188},
+ {{{0,8}},14}, {{{0,8}},142}, {{{0,8}},78}, {{{0,9}},252},
+ {{{96,7}},256}, {{{0,8}},81}, {{{0,8}},17}, {{{85,8}},131},
+ {{{82,7}},31}, {{{0,8}},113}, {{{0,8}},49}, {{{0,9}},194},
+ {{{80,7}},10}, {{{0,8}},97}, {{{0,8}},33}, {{{0,9}},162},
+ {{{0,8}},1}, {{{0,8}},129}, {{{0,8}},65}, {{{0,9}},226},
+ {{{80,7}},6}, {{{0,8}},89}, {{{0,8}},25}, {{{0,9}},146},
+ {{{83,7}},59}, {{{0,8}},121}, {{{0,8}},57}, {{{0,9}},210},
+ {{{81,7}},17}, {{{0,8}},105}, {{{0,8}},41}, {{{0,9}},178},
+ {{{0,8}},9}, {{{0,8}},137}, {{{0,8}},73}, {{{0,9}},242},
+ {{{80,7}},4}, {{{0,8}},85}, {{{0,8}},21}, {{{80,8}},258},
+ {{{83,7}},43}, {{{0,8}},117}, {{{0,8}},53}, {{{0,9}},202},
+ {{{81,7}},13}, {{{0,8}},101}, {{{0,8}},37}, {{{0,9}},170},
+ {{{0,8}},5}, {{{0,8}},133}, {{{0,8}},69}, {{{0,9}},234},
+ {{{80,7}},8}, {{{0,8}},93}, {{{0,8}},29}, {{{0,9}},154},
+ {{{84,7}},83}, {{{0,8}},125}, {{{0,8}},61}, {{{0,9}},218},
+ {{{82,7}},23}, {{{0,8}},109}, {{{0,8}},45}, {{{0,9}},186},
+ {{{0,8}},13}, {{{0,8}},141}, {{{0,8}},77}, {{{0,9}},250},
+ {{{80,7}},3}, {{{0,8}},83}, {{{0,8}},19}, {{{85,8}},195},
+ {{{83,7}},35}, {{{0,8}},115}, {{{0,8}},51}, {{{0,9}},198},
+ {{{81,7}},11}, {{{0,8}},99}, {{{0,8}},35}, {{{0,9}},166},
+ {{{0,8}},3}, {{{0,8}},131}, {{{0,8}},67}, {{{0,9}},230},
+ {{{80,7}},7}, {{{0,8}},91}, {{{0,8}},27}, {{{0,9}},150},
+ {{{84,7}},67}, {{{0,8}},123}, {{{0,8}},59}, {{{0,9}},214},
+ {{{82,7}},19}, {{{0,8}},107}, {{{0,8}},43}, {{{0,9}},182},
+ {{{0,8}},11}, {{{0,8}},139}, {{{0,8}},75}, {{{0,9}},246},
+ {{{80,7}},5}, {{{0,8}},87}, {{{0,8}},23}, {{{192,8}},0},
+ {{{83,7}},51}, {{{0,8}},119}, {{{0,8}},55}, {{{0,9}},206},
+ {{{81,7}},15}, {{{0,8}},103}, {{{0,8}},39}, {{{0,9}},174},
+ {{{0,8}},7}, {{{0,8}},135}, {{{0,8}},71}, {{{0,9}},238},
+ {{{80,7}},9}, {{{0,8}},95}, {{{0,8}},31}, {{{0,9}},158},
+ {{{84,7}},99}, {{{0,8}},127}, {{{0,8}},63}, {{{0,9}},222},
+ {{{82,7}},27}, {{{0,8}},111}, {{{0,8}},47}, {{{0,9}},190},
+ {{{0,8}},15}, {{{0,8}},143}, {{{0,8}},79}, {{{0,9}},254},
+ {{{96,7}},256}, {{{0,8}},80}, {{{0,8}},16}, {{{84,8}},115},
+ {{{82,7}},31}, {{{0,8}},112}, {{{0,8}},48}, {{{0,9}},193},
+ {{{80,7}},10}, {{{0,8}},96}, {{{0,8}},32}, {{{0,9}},161},
+ {{{0,8}},0}, {{{0,8}},128}, {{{0,8}},64}, {{{0,9}},225},
+ {{{80,7}},6}, {{{0,8}},88}, {{{0,8}},24}, {{{0,9}},145},
+ {{{83,7}},59}, {{{0,8}},120}, {{{0,8}},56}, {{{0,9}},209},
+ {{{81,7}},17}, {{{0,8}},104}, {{{0,8}},40}, {{{0,9}},177},
+ {{{0,8}},8}, {{{0,8}},136}, {{{0,8}},72}, {{{0,9}},241},
+ {{{80,7}},4}, {{{0,8}},84}, {{{0,8}},20}, {{{85,8}},227},
+ {{{83,7}},43}, {{{0,8}},116}, {{{0,8}},52}, {{{0,9}},201},
+ {{{81,7}},13}, {{{0,8}},100}, {{{0,8}},36}, {{{0,9}},169},
+ {{{0,8}},4}, {{{0,8}},132}, {{{0,8}},68}, {{{0,9}},233},
+ {{{80,7}},8}, {{{0,8}},92}, {{{0,8}},28}, {{{0,9}},153},
+ {{{84,7}},83}, {{{0,8}},124}, {{{0,8}},60}, {{{0,9}},217},
+ {{{82,7}},23}, {{{0,8}},108}, {{{0,8}},44}, {{{0,9}},185},
+ {{{0,8}},12}, {{{0,8}},140}, {{{0,8}},76}, {{{0,9}},249},
+ {{{80,7}},3}, {{{0,8}},82}, {{{0,8}},18}, {{{85,8}},163},
+ {{{83,7}},35}, {{{0,8}},114}, {{{0,8}},50}, {{{0,9}},197},
+ {{{81,7}},11}, {{{0,8}},98}, {{{0,8}},34}, {{{0,9}},165},
+ {{{0,8}},2}, {{{0,8}},130}, {{{0,8}},66}, {{{0,9}},229},
+ {{{80,7}},7}, {{{0,8}},90}, {{{0,8}},26}, {{{0,9}},149},
+ {{{84,7}},67}, {{{0,8}},122}, {{{0,8}},58}, {{{0,9}},213},
+ {{{82,7}},19}, {{{0,8}},106}, {{{0,8}},42}, {{{0,9}},181},
+ {{{0,8}},10}, {{{0,8}},138}, {{{0,8}},74}, {{{0,9}},245},
+ {{{80,7}},5}, {{{0,8}},86}, {{{0,8}},22}, {{{192,8}},0},
+ {{{83,7}},51}, {{{0,8}},118}, {{{0,8}},54}, {{{0,9}},205},
+ {{{81,7}},15}, {{{0,8}},102}, {{{0,8}},38}, {{{0,9}},173},
+ {{{0,8}},6}, {{{0,8}},134}, {{{0,8}},70}, {{{0,9}},237},
+ {{{80,7}},9}, {{{0,8}},94}, {{{0,8}},30}, {{{0,9}},157},
+ {{{84,7}},99}, {{{0,8}},126}, {{{0,8}},62}, {{{0,9}},221},
+ {{{82,7}},27}, {{{0,8}},110}, {{{0,8}},46}, {{{0,9}},189},
+ {{{0,8}},14}, {{{0,8}},142}, {{{0,8}},78}, {{{0,9}},253},
+ {{{96,7}},256}, {{{0,8}},81}, {{{0,8}},17}, {{{85,8}},131},
+ {{{82,7}},31}, {{{0,8}},113}, {{{0,8}},49}, {{{0,9}},195},
+ {{{80,7}},10}, {{{0,8}},97}, {{{0,8}},33}, {{{0,9}},163},
+ {{{0,8}},1}, {{{0,8}},129}, {{{0,8}},65}, {{{0,9}},227},
+ {{{80,7}},6}, {{{0,8}},89}, {{{0,8}},25}, {{{0,9}},147},
+ {{{83,7}},59}, {{{0,8}},121}, {{{0,8}},57}, {{{0,9}},211},
+ {{{81,7}},17}, {{{0,8}},105}, {{{0,8}},41}, {{{0,9}},179},
+ {{{0,8}},9}, {{{0,8}},137}, {{{0,8}},73}, {{{0,9}},243},
+ {{{80,7}},4}, {{{0,8}},85}, {{{0,8}},21}, {{{80,8}},258},
+ {{{83,7}},43}, {{{0,8}},117}, {{{0,8}},53}, {{{0,9}},203},
+ {{{81,7}},13}, {{{0,8}},101}, {{{0,8}},37}, {{{0,9}},171},
+ {{{0,8}},5}, {{{0,8}},133}, {{{0,8}},69}, {{{0,9}},235},
+ {{{80,7}},8}, {{{0,8}},93}, {{{0,8}},29}, {{{0,9}},155},
+ {{{84,7}},83}, {{{0,8}},125}, {{{0,8}},61}, {{{0,9}},219},
+ {{{82,7}},23}, {{{0,8}},109}, {{{0,8}},45}, {{{0,9}},187},
+ {{{0,8}},13}, {{{0,8}},141}, {{{0,8}},77}, {{{0,9}},251},
+ {{{80,7}},3}, {{{0,8}},83}, {{{0,8}},19}, {{{85,8}},195},
+ {{{83,7}},35}, {{{0,8}},115}, {{{0,8}},51}, {{{0,9}},199},
+ {{{81,7}},11}, {{{0,8}},99}, {{{0,8}},35}, {{{0,9}},167},
+ {{{0,8}},3}, {{{0,8}},131}, {{{0,8}},67}, {{{0,9}},231},
+ {{{80,7}},7}, {{{0,8}},91}, {{{0,8}},27}, {{{0,9}},151},
+ {{{84,7}},67}, {{{0,8}},123}, {{{0,8}},59}, {{{0,9}},215},
+ {{{82,7}},19}, {{{0,8}},107}, {{{0,8}},43}, {{{0,9}},183},
+ {{{0,8}},11}, {{{0,8}},139}, {{{0,8}},75}, {{{0,9}},247},
+ {{{80,7}},5}, {{{0,8}},87}, {{{0,8}},23}, {{{192,8}},0},
+ {{{83,7}},51}, {{{0,8}},119}, {{{0,8}},55}, {{{0,9}},207},
+ {{{81,7}},15}, {{{0,8}},103}, {{{0,8}},39}, {{{0,9}},175},
+ {{{0,8}},7}, {{{0,8}},135}, {{{0,8}},71}, {{{0,9}},239},
+ {{{80,7}},9}, {{{0,8}},95}, {{{0,8}},31}, {{{0,9}},159},
+ {{{84,7}},99}, {{{0,8}},127}, {{{0,8}},63}, {{{0,9}},223},
+ {{{82,7}},27}, {{{0,8}},111}, {{{0,8}},47}, {{{0,9}},191},
+ {{{0,8}},15}, {{{0,8}},143}, {{{0,8}},79}, {{{0,9}},255}
+ };
+local const inflate_huft fixed_td[] = {
+ {{{80,5}},1}, {{{87,5}},257}, {{{83,5}},17}, {{{91,5}},4097},
+ {{{81,5}},5}, {{{89,5}},1025}, {{{85,5}},65}, {{{93,5}},16385},
+ {{{80,5}},3}, {{{88,5}},513}, {{{84,5}},33}, {{{92,5}},8193},
+ {{{82,5}},9}, {{{90,5}},2049}, {{{86,5}},129}, {{{192,5}},24577},
+ {{{80,5}},2}, {{{87,5}},385}, {{{83,5}},25}, {{{91,5}},6145},
+ {{{81,5}},7}, {{{89,5}},1537}, {{{85,5}},97}, {{{93,5}},24577},
+ {{{80,5}},4}, {{{88,5}},769}, {{{84,5}},49}, {{{92,5}},12289},
+ {{{82,5}},13}, {{{90,5}},3073}, {{{86,5}},193}, {{{192,5}},24577}
+ };
diff --git a/src/gzip/inflate.c b/src/gzip/inflate.c
new file mode 100644
index 0000000..8877fa3
--- /dev/null
+++ b/src/gzip/inflate.c
@@ -0,0 +1,273 @@
+/* inflate.c -- zlib interface to inflate modules
+ * Copyright (C) 1995-2002 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+#include "zutil.h"
+#include "infblock.h"
+
+#define DONE INFLATE_DONE
+#define BAD INFLATE_BAD
+
+typedef enum {
+ METHOD, /* waiting for method byte */
+ FLAG, /* waiting for flag byte */
+ DICT4, /* four dictionary check bytes to go */
+ DICT3, /* three dictionary check bytes to go */
+ DICT2, /* two dictionary check bytes to go */
+ DICT1, /* one dictionary check byte to go */
+ DICT0, /* waiting for inflateSetDictionary */
+ BLOCKS, /* decompressing blocks */
+ CHECK4, /* four check bytes to go */
+ CHECK3, /* three check bytes to go */
+ CHECK2, /* two check bytes to go */
+ CHECK1, /* one check byte to go */
+ DONE, /* finished check, done */
+ BAD} /* got an error--stay here */
+inflate_mode;
+
+/* inflate private state */
+struct internal_state {
+
+ /* mode */
+ inflate_mode mode; /* current inflate mode */
+
+ /* mode dependent information */
+ union {
+ uInt method; /* if FLAGS, method byte */
+ struct {
+ uLong was; /* computed check value */
+ uLong need; /* stream check value */
+ } check; /* if CHECK, check values to compare */
+ uInt marker; /* if BAD, inflateSync's marker bytes count */
+ } sub; /* submode */
+
+ /* mode independent information */
+ int nowrap; /* flag for no wrapper */
+ uInt wbits; /* log2(window size) (8..15, defaults to 15) */
+ inflate_blocks_statef
+ *blocks; /* current inflate_blocks state */
+
+};
+
+
+ZEXPORT(int) inflateReset( /* z) */
+z_streamp z )
+{
+ if (z == Z_NULL || z->state == Z_NULL)
+ return Z_STREAM_ERROR;
+ z->total_in = z->total_out = 0;
+ z->msg = Z_NULL;
+ z->state->mode = z->state->nowrap ? BLOCKS : METHOD;
+ inflate_blocks_reset(z->state->blocks, z, Z_NULL);
+ Tracev((stderr, "inflate: reset\n"));
+ return Z_OK;
+}
+
+
+ZEXPORT(int) inflateEnd( /* z) */
+z_streamp z )
+{
+ if (z == Z_NULL || z->state == Z_NULL || z->zfree == Z_NULL)
+ return Z_STREAM_ERROR;
+ if (z->state->blocks != Z_NULL)
+ inflate_blocks_free(z->state->blocks, z);
+ ZFREE(z, z->state);
+ z->state = Z_NULL;
+ Tracev((stderr, "inflate: end\n"));
+ return Z_OK;
+}
+
+
+ZEXPORT(int) inflateInit2_( /* z, w, version, stream_size) */
+z_streamp z,
+int w,
+const char *version,
+int stream_size )
+{
+ if (version == Z_NULL || version[0] != ZLIB_VERSION[0] ||
+ stream_size != sizeof(z_stream))
+ return Z_VERSION_ERROR;
+
+ /* initialize state */
+ if (z == Z_NULL)
+ return Z_STREAM_ERROR;
+ z->msg = Z_NULL;
+ if (z->zalloc == Z_NULL)
+ {
+ z->zalloc = zcalloc;
+ z->opaque = (voidpf)0;
+ }
+ if (z->zfree == Z_NULL) z->zfree = zcfree;
+ if ((z->state = (struct internal_state FAR *)
+ ZALLOC(z,1,sizeof(struct internal_state))) == Z_NULL)
+ return Z_MEM_ERROR;
+ z->state->blocks = Z_NULL;
+
+ /* handle undocumented nowrap option (no zlib header or check) */
+ z->state->nowrap = 0;
+ if (w < 0)
+ {
+ w = - w;
+ z->state->nowrap = 1;
+ }
+
+ /* set window size */
+ if (w < 8 || w > 15)
+ {
+ inflateEnd(z);
+ return Z_STREAM_ERROR;
+ }
+ z->state->wbits = (uInt)w;
+
+ /* create inflate_blocks state */
+ if ((z->state->blocks =
+ inflate_blocks_new(z, z->state->nowrap ? Z_NULL : adler32, (uInt)1 << w))
+ == Z_NULL)
+ {
+ inflateEnd(z);
+ return Z_MEM_ERROR;
+ }
+ Tracev((stderr, "inflate: allocated\n"));
+
+ /* reset state */
+ inflateReset(z);
+ return Z_OK;
+}
+
+
+
+#undef NEEDBYTE
+#define NEEDBYTE {if(z->avail_in==0)return r;r=f;}
+
+#undef NEXTBYTE
+#define NEXTBYTE (z->avail_in--,z->total_in++,*z->next_in++)
+
+
+ZEXPORT(int) inflate( /* z, f) */
+z_streamp z,
+int f )
+{
+ int r;
+ uInt b;
+
+ if (z == Z_NULL || z->state == Z_NULL || z->next_in == Z_NULL)
+ return Z_STREAM_ERROR;
+ f = f == Z_FINISH ? Z_BUF_ERROR : Z_OK;
+ r = Z_BUF_ERROR;
+ while (1) switch (z->state->mode)
+ {
+ case METHOD:
+ NEEDBYTE
+ if (((z->state->sub.method = NEXTBYTE) & 0xf) != Z_DEFLATED)
+ {
+ z->state->mode = BAD;
+ z->msg = (char*)"unknown compression method";
+ z->state->sub.marker = 5; /* can't try inflateSync */
+ break;
+ }
+ if ((z->state->sub.method >> 4) + 8 > z->state->wbits)
+ {
+ z->state->mode = BAD;
+ z->msg = (char*)"invalid window size";
+ z->state->sub.marker = 5; /* can't try inflateSync */
+ break;
+ }
+ z->state->mode = FLAG;
+ case FLAG:
+ NEEDBYTE
+ b = NEXTBYTE;
+ if (((z->state->sub.method << 8) + b) % 31)
+ {
+ z->state->mode = BAD;
+ z->msg = (char*)"incorrect header check";
+ z->state->sub.marker = 5; /* can't try inflateSync */
+ break;
+ }
+ Tracev((stderr, "inflate: zlib header ok\n"));
+ if (!(b & PRESET_DICT))
+ {
+ z->state->mode = BLOCKS;
+ break;
+ }
+ z->state->mode = DICT4;
+ case DICT4:
+ NEEDBYTE
+ z->state->sub.check.need = (uLong)NEXTBYTE << 24;
+ z->state->mode = DICT3;
+ case DICT3:
+ NEEDBYTE
+ z->state->sub.check.need += (uLong)NEXTBYTE << 16;
+ z->state->mode = DICT2;
+ case DICT2:
+ NEEDBYTE
+ z->state->sub.check.need += (uLong)NEXTBYTE << 8;
+ z->state->mode = DICT1;
+ case DICT1:
+ NEEDBYTE
+ z->state->sub.check.need += (uLong)NEXTBYTE;
+ z->adler = z->state->sub.check.need;
+ z->state->mode = DICT0;
+ return Z_NEED_DICT;
+ case DICT0:
+ z->state->mode = BAD;
+ z->msg = (char*)"need dictionary";
+ z->state->sub.marker = 0; /* can try inflateSync */
+ return Z_STREAM_ERROR;
+ case BLOCKS:
+ r = inflate_blocks(z->state->blocks, z, r);
+ if (r == Z_DATA_ERROR)
+ {
+ z->state->mode = BAD;
+ z->state->sub.marker = 0; /* can try inflateSync */
+ break;
+ }
+ if (r == Z_OK)
+ r = f;
+ if (r != Z_STREAM_END)
+ return r;
+ r = f;
+ inflate_blocks_reset(z->state->blocks, z, &z->state->sub.check.was);
+ if (z->state->nowrap)
+ {
+ z->state->mode = DONE;
+ break;
+ }
+ z->state->mode = CHECK4;
+ case CHECK4:
+ NEEDBYTE
+ z->state->sub.check.need = (uLong)NEXTBYTE << 24;
+ z->state->mode = CHECK3;
+ case CHECK3:
+ NEEDBYTE
+ z->state->sub.check.need += (uLong)NEXTBYTE << 16;
+ z->state->mode = CHECK2;
+ case CHECK2:
+ NEEDBYTE
+ z->state->sub.check.need += (uLong)NEXTBYTE << 8;
+ z->state->mode = CHECK1;
+ case CHECK1:
+ NEEDBYTE
+ z->state->sub.check.need += (uLong)NEXTBYTE;
+
+ if (z->state->sub.check.was != z->state->sub.check.need)
+ {
+ z->state->mode = BAD;
+ z->msg = (char*)"incorrect data check";
+ z->state->sub.marker = 5; /* can't try inflateSync */
+ break;
+ }
+ Tracev((stderr, "inflate: zlib check ok\n"));
+ z->state->mode = DONE;
+ case DONE:
+ return Z_STREAM_END;
+ case BAD:
+ return Z_DATA_ERROR;
+ default:
+ return Z_STREAM_ERROR;
+ }
+#ifdef NEED_DUMMY_RETURN
+ return Z_STREAM_ERROR; /* Some dumb compilers complain without this */
+#endif
+}
+
diff --git a/src/gzip/inftrees.c b/src/gzip/inftrees.c
new file mode 100644
index 0000000..ef53652
--- /dev/null
+++ b/src/gzip/inftrees.c
@@ -0,0 +1,468 @@
+/* inftrees.c -- generate Huffman trees for efficient decoding
+ * Copyright (C) 1995-2002 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+#include "zutil.h"
+#include "inftrees.h"
+
+#if !defined(BUILDFIXED) && !defined(STDC)
+# define BUILDFIXED /* non ANSI compilers may not accept inffixed.h */
+#endif
+
+
+#if 0
+local const char inflate_copyright[] =
+ " inflate 1.1.4 Copyright 1995-2002 Mark Adler ";
+#endif
+/*
+ If you use the zlib library in a product, an acknowledgment is welcome
+ in the documentation of your product. If for some reason you cannot
+ include such an acknowledgment, I would appreciate that you keep this
+ copyright string in the executable of your product.
+ */
+
+/* simplify the use of the inflate_huft type with some defines */
+#define exop word.what.Exop
+#define bits word.what.Bits
+
+
+local int huft_build OF((
+ uIntf *, /* code lengths in bits */
+ uInt, /* number of codes */
+ uInt, /* number of "simple" codes */
+ const uIntf *, /* list of base values for non-simple codes */
+ const uIntf *, /* list of extra bits for non-simple codes */
+ inflate_huft * FAR*,/* result: starting table */
+ uIntf *, /* maximum lookup bits (returns actual) */
+ inflate_huft *, /* space for trees */
+ uInt *, /* hufts used in space */
+ uIntf * )); /* space for values */
+
+/* Tables for deflate from PKZIP's appnote.txt. */
+local const uInt cplens[31] = { /* Copy lengths for literal codes 257..285 */
+ 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31,
+ 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0};
+ /* see note #13 above about 258 */
+local const uInt cplext[31] = { /* Extra bits for literal codes 257..285 */
+ 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2,
+ 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0, 112, 112}; /* 112==invalid */
+local const uInt cpdist[30] = { /* Copy offsets for distance codes 0..29 */
+ 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193,
+ 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145,
+ 8193, 12289, 16385, 24577};
+local const uInt cpdext[30] = { /* Extra bits for distance codes */
+ 0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6,
+ 7, 7, 8, 8, 9, 9, 10, 10, 11, 11,
+ 12, 12, 13, 13};
+
+/*
+ Huffman code decoding is performed using a multi-level table lookup.
+ The fastest way to decode is to simply build a lookup table whose
+ size is determined by the longest code. However, the time it takes
+ to build this table can also be a factor if the data being decoded
+ is not very long. The most common codes are necessarily the
+ shortest codes, so those codes dominate the decoding time, and hence
+ the speed. The idea is you can have a shorter table that decodes the
+ shorter, more probable codes, and then point to subsidiary tables for
+ the longer codes. The time it costs to decode the longer codes is
+ then traded against the time it takes to make longer tables.
+
+ This results of this trade are in the variables lbits and dbits
+ below. lbits is the number of bits the first level table for literal/
+ length codes can decode in one step, and dbits is the same thing for
+ the distance codes. Subsequent tables are also less than or equal to
+ those sizes. These values may be adjusted either when all of the
+ codes are shorter than that, in which case the longest code length in
+ bits is used, or when the shortest code is *longer* than the requested
+ table size, in which case the length of the shortest code in bits is
+ used.
+
+ There are two different values for the two tables, since they code a
+ different number of possibilities each. The literal/length table
+ codes 286 possible values, or in a flat code, a little over eight
+ bits. The distance table codes 30 possible values, or a little less
+ than five bits, flat. The optimum values for speed end up being
+ about one bit more than those, so lbits is 8+1 and dbits is 5+1.
+ The optimum values may differ though from machine to machine, and
+ possibly even between compilers. Your mileage may vary.
+ */
+
+
+/* If BMAX needs to be larger than 16, then h and x[] should be uLong. */
+#define BMAX 15 /* maximum bit length of any code */
+
+local int huft_build( /* b, n, s, d, e, t, m, hp, hn, v) */
+uIntf *b, /* code lengths in bits (all assumed <= BMAX) */
+uInt n, /* number of codes (assumed <= 288) */
+uInt s, /* number of simple-valued codes (0..s-1) */
+const uIntf *d, /* list of base values for non-simple codes */
+const uIntf *e, /* list of extra bits for non-simple codes */
+inflate_huft * FAR *t, /* result: starting table */
+uIntf *m, /* maximum lookup bits, returns actual */
+inflate_huft *hp, /* space for trees */
+uInt *hn, /* hufts used in space */
+uIntf *v /* working area: values in order of bit length */
+/* Given a list of code lengths and a maximum table size, make a set of
+ tables to decode that set of codes. Return Z_OK on success, Z_BUF_ERROR
+ if the given code set is incomplete (the tables are still built in this
+ case), or Z_DATA_ERROR if the input is invalid. */
+)
+{
+
+ uInt a; /* counter for codes of length k */
+ uInt c[BMAX+1]; /* bit length count table */
+ uInt f; /* i repeats in table every f entries */
+ int g; /* maximum code length */
+ int h; /* table level */
+ register uInt i; /* counter, current code */
+ register uInt j; /* counter */
+ register int k; /* number of bits in current code */
+ int l; /* bits per table (returned in m) */
+ uInt mask; /* (1 << w) - 1, to avoid cc -O bug on HP */
+ register uIntf *p; /* pointer into c[], b[], or v[] */
+ inflate_huft *q; /* points to current table */
+ struct inflate_huft_s r; /* table entry for structure assignment */
+ inflate_huft *u[BMAX]; /* table stack */
+ register int w; /* bits before this table == (l * h) */
+ uInt x[BMAX+1]; /* bit offsets, then code stack */
+ uIntf *xp; /* pointer into x */
+ int y; /* number of dummy codes added */
+ uInt z; /* number of entries in current table */
+
+
+ /* Make compiler happy */
+ r.base = 0;
+
+ /* Generate counts for each bit length */
+ p = c;
+#define C0 *p++ = 0;
+#define C2 C0 C0 C0 C0
+#define C4 C2 C2 C2 C2
+ C4 /* clear c[]--assume BMAX+1 is 16 */
+ p = b; i = n;
+ do {
+ c[*p++]++; /* assume all entries <= BMAX */
+ } while (--i);
+ if (c[0] == n) /* null input--all zero length codes */
+ {
+ *t = (inflate_huft *)Z_NULL;
+ *m = 0;
+ return Z_OK;
+ }
+
+
+ /* Find minimum and maximum length, bound *m by those */
+ l = *m;
+ for (j = 1; j <= BMAX; j++)
+ if (c[j])
+ break;
+ k = j; /* minimum code length */
+ if ((uInt)l < j)
+ l = j;
+ for (i = BMAX; i; i--)
+ if (c[i])
+ break;
+ g = i; /* maximum code length */
+ if ((uInt)l > i)
+ l = i;
+ *m = l;
+
+
+ /* Adjust last length count to fill out codes, if needed */
+ for (y = 1 << j; j < i; j++, y <<= 1)
+ if ((y -= c[j]) < 0)
+ return Z_DATA_ERROR;
+ if ((y -= c[i]) < 0)
+ return Z_DATA_ERROR;
+ c[i] += y;
+
+
+ /* Generate starting offsets into the value table for each length */
+ x[1] = j = 0;
+ p = c + 1; xp = x + 2;
+ while (--i) { /* note that i == g from above */
+ *xp++ = (j += *p++);
+ }
+
+
+ /* Make a table of values in order of bit lengths */
+ p = b; i = 0;
+ do {
+ if ((j = *p++) != 0)
+ v[x[j]++] = i;
+ } while (++i < n);
+ n = x[g]; /* set n to length of v */
+
+
+ /* Generate the Huffman codes and for each, make the table entries */
+ x[0] = i = 0; /* first Huffman code is zero */
+ p = v; /* grab values in bit order */
+ h = -1; /* no tables yet--level -1 */
+ w = -l; /* bits decoded == (l * h) */
+ u[0] = (inflate_huft *)Z_NULL; /* just to keep compilers happy */
+ q = (inflate_huft *)Z_NULL; /* ditto */
+ z = 0; /* ditto */
+
+ /* go through the bit lengths (k already is bits in shortest code) */
+ for (; k <= g; k++)
+ {
+ a = c[k];
+ while (a--)
+ {
+ /* here i is the Huffman code of length k bits for value *p */
+ /* make tables up to required level */
+ while (k > w + l)
+ {
+ h++;
+ w += l; /* previous table always l bits */
+
+ /* compute minimum size table less than or equal to l bits */
+ z = g - w;
+ z = z > (uInt)l ? (uInt)l : z; /* table size upper limit */
+ if ((f = 1 << (j = k - w)) > a + 1) /* try a k-w bit table */
+ { /* too few codes for k-w bit table */
+ f -= a + 1; /* deduct codes from patterns left */
+ xp = c + k;
+ if (j < z)
+ while (++j < z) /* try smaller tables up to z bits */
+ {
+ if ((f <<= 1) <= *++xp)
+ break; /* enough codes to use up j bits */
+ f -= *xp; /* else deduct codes from patterns */
+ }
+ }
+ z = 1 << j; /* table entries for j-bit table */
+
+ /* allocate new table */
+ if (*hn + z > MANY) /* (note: doesn't matter for fixed) */
+ return Z_DATA_ERROR; /* overflow of MANY */
+ u[h] = q = hp + *hn;
+ *hn += z;
+
+ /* connect to last table, if there is one */
+ if (h)
+ {
+ x[h] = i; /* save pattern for backing up */
+ r.bits = (Byte)l; /* bits to dump before this table */
+ r.exop = (Byte)j; /* bits in this table */
+ j = i >> (w - l);
+ r.base = (uInt)(q - u[h-1] - j); /* offset to this table */
+ u[h-1][j] = r; /* connect to last table */
+ }
+ else
+ *t = q; /* first table is returned result */
+ }
+
+ /* set up table entry in r */
+ r.bits = (Byte)(k - w);
+ if (p >= v + n)
+ r.exop = 128 + 64; /* out of values--invalid code */
+ else if (*p < s)
+ {
+ r.exop = (Byte)(*p < 256 ? 0 : 32 + 64); /* 256 is end-of-block */
+ r.base = *p++; /* simple code is just the value */
+ }
+ else
+ {
+ r.exop = (Byte)(e[*p - s] + 16 + 64);/* non-simple--look up in lists */
+ r.base = d[*p++ - s];
+ }
+
+ /* fill code-like entries with r */
+ f = 1 << (k - w);
+ for (j = i >> w; j < z; j += f)
+ q[j] = r;
+
+ /* backwards increment the k-bit code i */
+ for (j = 1 << (k - 1); i & j; j >>= 1)
+ i ^= j;
+ i ^= j;
+
+ /* backup over finished tables */
+ mask = (1 << w) - 1; /* needed on HP, cc -O bug */
+ while ((i & mask) != x[h])
+ {
+ h--; /* don't need to update q */
+ w -= l;
+ mask = (1 << w) - 1;
+ }
+ }
+ }
+
+
+ /* Return Z_BUF_ERROR if we were given an incomplete table */
+ return y != 0 && g != 1 ? Z_BUF_ERROR : Z_OK;
+}
+
+
+local int inflate_trees_bits( /* c, bb, tb, hp, z) */
+uIntf *c, /* 19 code lengths */
+uIntf *bb, /* bits tree desired/actual depth */
+inflate_huft * FAR *tb, /* bits tree result */
+inflate_huft *hp, /* space for trees */
+z_streamp z /* for messages */
+)
+{
+ int r;
+ uInt hn = 0; /* hufts used in space */
+ uIntf *v; /* work area for huft_build */
+
+ if ((v = (uIntf*)ZALLOC(z, 19, sizeof(uInt))) == Z_NULL)
+ return Z_MEM_ERROR;
+ r = huft_build(c, 19, 19, (uIntf*)Z_NULL, (uIntf*)Z_NULL,
+ tb, bb, hp, &hn, v);
+ if (r == Z_DATA_ERROR)
+ z->msg = (char*)"oversubscribed dynamic bit lengths tree";
+ else if (r == Z_BUF_ERROR || *bb == 0)
+ {
+ z->msg = (char*)"incomplete dynamic bit lengths tree";
+ r = Z_DATA_ERROR;
+ }
+ ZFREE(z, v);
+ return r;
+}
+
+
+local int inflate_trees_dynamic( /* nl, nd, c, bl, bd, tl, td, hp, z) */
+uInt nl, /* number of literal/length codes */
+uInt nd, /* number of distance codes */
+uIntf *c, /* that many (total) code lengths */
+uIntf *bl, /* literal desired/actual bit depth */
+uIntf *bd, /* distance desired/actual bit depth */
+inflate_huft * FAR *tl, /* literal/length tree result */
+inflate_huft * FAR *td, /* distance tree result */
+inflate_huft *hp, /* space for trees */
+z_streamp z /* for messages */
+)
+{
+ int r;
+ uInt hn = 0; /* hufts used in space */
+ uIntf *v; /* work area for huft_build */
+
+ /* allocate work area */
+ if ((v = (uIntf*)ZALLOC(z, 288, sizeof(uInt))) == Z_NULL)
+ return Z_MEM_ERROR;
+
+ /* build literal/length tree */
+ r = huft_build(c, nl, 257, cplens, cplext, tl, bl, hp, &hn, v);
+ if (r != Z_OK || *bl == 0)
+ {
+ if (r == Z_DATA_ERROR)
+ z->msg = (char*)"oversubscribed literal/length tree";
+ else if (r != Z_MEM_ERROR)
+ {
+ z->msg = (char*)"incomplete literal/length tree";
+ r = Z_DATA_ERROR;
+ }
+ ZFREE(z, v);
+ return r;
+ }
+
+ /* build distance tree */
+ r = huft_build(c + nl, nd, 0, cpdist, cpdext, td, bd, hp, &hn, v);
+ if (r != Z_OK || (*bd == 0 && nl > 257))
+ {
+ if (r == Z_DATA_ERROR)
+ z->msg = (char*)"oversubscribed distance tree";
+ else if (r == Z_BUF_ERROR) {
+#if 0
+ {
+#endif
+#ifdef PKZIP_BUG_WORKAROUND
+ r = Z_OK;
+ }
+#else
+ z->msg = (char*)"incomplete distance tree";
+ r = Z_DATA_ERROR;
+ }
+ else if (r != Z_MEM_ERROR)
+ {
+ z->msg = (char*)"empty distance tree with lengths";
+ r = Z_DATA_ERROR;
+ }
+ ZFREE(z, v);
+ return r;
+#endif
+ }
+
+ /* done */
+ ZFREE(z, v);
+ return Z_OK;
+}
+
+
+/* build fixed tables only once--keep them here */
+#ifdef BUILDFIXED
+local int fixed_built = 0;
+#define FIXEDH 544 /* number of hufts used by fixed tables */
+local inflate_huft fixed_mem[FIXEDH];
+local uInt fixed_bl;
+local uInt fixed_bd;
+local inflate_huft *fixed_tl;
+local inflate_huft *fixed_td;
+#else
+#include "inffixed.h"
+#endif
+
+
+local int inflate_trees_fixed( /* bl, bd, tl, td, z) */
+uIntf *bl, /* literal desired/actual bit depth */
+uIntf *bd, /* distance desired/actual bit depth */
+const inflate_huft * FAR *tl, /* literal/length tree result */
+const inflate_huft * FAR *td, /* distance tree result */
+z_streamp z /* for memory allocation */
+)
+{
+#ifdef BUILDFIXED
+ /* build fixed tables if not already */
+ if (!fixed_built)
+ {
+ int k; /* temporary variable */
+ uInt f = 0; /* number of hufts used in fixed_mem */
+ uIntf *c; /* length list for huft_build */
+ uIntf *v; /* work area for huft_build */
+
+ /* allocate memory */
+ if ((c = (uIntf*)ZALLOC(z, 288, sizeof(uInt))) == Z_NULL)
+ return Z_MEM_ERROR;
+ if ((v = (uIntf*)ZALLOC(z, 288, sizeof(uInt))) == Z_NULL)
+ {
+ ZFREE(z, c);
+ return Z_MEM_ERROR;
+ }
+
+ /* literal table */
+ for (k = 0; k < 144; k++)
+ c[k] = 8;
+ for (; k < 256; k++)
+ c[k] = 9;
+ for (; k < 280; k++)
+ c[k] = 7;
+ for (; k < 288; k++)
+ c[k] = 8;
+ fixed_bl = 9;
+ huft_build(c, 288, 257, cplens, cplext, &fixed_tl, &fixed_bl,
+ fixed_mem, &f, v);
+
+ /* distance table */
+ for (k = 0; k < 30; k++)
+ c[k] = 5;
+ fixed_bd = 5;
+ huft_build(c, 30, 0, cpdist, cpdext, &fixed_td, &fixed_bd,
+ fixed_mem, &f, v);
+
+ /* done */
+ ZFREE(z, v);
+ ZFREE(z, c);
+ fixed_built = 1;
+ }
+#else
+ FT_UNUSED(z);
+#endif
+ *bl = fixed_bl;
+ *bd = fixed_bd;
+ *tl = fixed_tl;
+ *td = fixed_td;
+ return Z_OK;
+}
diff --git a/src/gzip/inftrees.h b/src/gzip/inftrees.h
new file mode 100644
index 0000000..07bf2aa
--- /dev/null
+++ b/src/gzip/inftrees.h
@@ -0,0 +1,63 @@
+/* inftrees.h -- header to use inftrees.c
+ * Copyright (C) 1995-2002 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* WARNING: this file should *not* be used by applications. It is
+ part of the implementation of the compression library and is
+ subject to change. Applications should only use zlib.h.
+ */
+
+/* Huffman code lookup table entry--this entry is four bytes for machines
+ that have 16-bit pointers (e.g. PC's in the small or medium model). */
+
+#ifndef _INFTREES_H
+#define _INFTREES_H
+
+typedef struct inflate_huft_s FAR inflate_huft;
+
+struct inflate_huft_s {
+ union {
+ struct {
+ Byte Exop; /* number of extra bits or operation */
+ Byte Bits; /* number of bits in this code or subcode */
+ } what;
+ uInt pad; /* pad structure to a power of 2 (4 bytes for */
+ } word; /* 16-bit, 8 bytes for 32-bit int's) */
+ uInt base; /* literal, length base, distance base,
+ or table offset */
+};
+
+/* Maximum size of dynamic tree. The maximum found in a long but non-
+ exhaustive search was 1004 huft structures (850 for length/literals
+ and 154 for distances, the latter actually the result of an
+ exhaustive search). The actual maximum is not known, but the
+ value below is more than safe. */
+#define MANY 1440
+
+local int inflate_trees_bits OF((
+ uIntf *, /* 19 code lengths */
+ uIntf *, /* bits tree desired/actual depth */
+ inflate_huft * FAR *, /* bits tree result */
+ inflate_huft *, /* space for trees */
+ z_streamp)); /* for messages */
+
+local int inflate_trees_dynamic OF((
+ uInt, /* number of literal/length codes */
+ uInt, /* number of distance codes */
+ uIntf *, /* that many (total) code lengths */
+ uIntf *, /* literal desired/actual bit depth */
+ uIntf *, /* distance desired/actual bit depth */
+ inflate_huft * FAR *, /* literal/length tree result */
+ inflate_huft * FAR *, /* distance tree result */
+ inflate_huft *, /* space for trees */
+ z_streamp)); /* for messages */
+
+local int inflate_trees_fixed OF((
+ uIntf *, /* literal desired/actual bit depth */
+ uIntf *, /* distance desired/actual bit depth */
+ const inflate_huft * FAR *, /* literal/length tree result */
+ const inflate_huft * FAR *, /* distance tree result */
+ z_streamp)); /* for memory allocation */
+
+#endif /* _INFTREES_H */
diff --git a/src/gzip/infutil.c b/src/gzip/infutil.c
new file mode 100644
index 0000000..6087b40
--- /dev/null
+++ b/src/gzip/infutil.c
@@ -0,0 +1,86 @@
+/* inflate_util.c -- data and routines common to blocks and codes
+ * Copyright (C) 1995-2002 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+#include "zutil.h"
+#include "infblock.h"
+#include "inftrees.h"
+#include "infcodes.h"
+#include "infutil.h"
+
+
+/* And'ing with mask[n] masks the lower n bits */
+local const uInt inflate_mask[17] = {
+ 0x0000,
+ 0x0001, 0x0003, 0x0007, 0x000f, 0x001f, 0x003f, 0x007f, 0x00ff,
+ 0x01ff, 0x03ff, 0x07ff, 0x0fff, 0x1fff, 0x3fff, 0x7fff, 0xffff
+};
+
+
+/* copy as much as possible from the sliding window to the output area */
+local int inflate_flush( /* s, z, r) */
+inflate_blocks_statef *s,
+z_streamp z,
+int r )
+{
+ uInt n;
+ Bytef *p;
+ Bytef *q;
+
+ /* local copies of source and destination pointers */
+ p = z->next_out;
+ q = s->read;
+
+ /* compute number of bytes to copy as far as end of window */
+ n = (uInt)((q <= s->write ? s->write : s->end) - q);
+ if (n > z->avail_out) n = z->avail_out;
+ if (n && r == Z_BUF_ERROR) r = Z_OK;
+
+ /* update counters */
+ z->avail_out -= n;
+ z->total_out += n;
+
+ /* update check information */
+ if (s->checkfn != Z_NULL)
+ z->adler = s->check = (*s->checkfn)(s->check, q, n);
+
+ /* copy as far as end of window */
+ zmemcpy(p, q, n);
+ p += n;
+ q += n;
+
+ /* see if more to copy at beginning of window */
+ if (q == s->end)
+ {
+ /* wrap pointers */
+ q = s->window;
+ if (s->write == s->end)
+ s->write = s->window;
+
+ /* compute bytes to copy */
+ n = (uInt)(s->write - q);
+ if (n > z->avail_out) n = z->avail_out;
+ if (n && r == Z_BUF_ERROR) r = Z_OK;
+
+ /* update counters */
+ z->avail_out -= n;
+ z->total_out += n;
+
+ /* update check information */
+ if (s->checkfn != Z_NULL)
+ z->adler = s->check = (*s->checkfn)(s->check, q, n);
+
+ /* copy */
+ zmemcpy(p, q, n);
+ p += n;
+ q += n;
+ }
+
+ /* update pointers */
+ z->next_out = p;
+ s->read = q;
+
+ /* done */
+ return r;
+}
diff --git a/src/gzip/infutil.h b/src/gzip/infutil.h
new file mode 100644
index 0000000..7174b6d
--- /dev/null
+++ b/src/gzip/infutil.h
@@ -0,0 +1,98 @@
+/* infutil.h -- types and macros common to blocks and codes
+ * Copyright (C) 1995-2002 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* WARNING: this file should *not* be used by applications. It is
+ part of the implementation of the compression library and is
+ subject to change. Applications should only use zlib.h.
+ */
+
+#ifndef _INFUTIL_H
+#define _INFUTIL_H
+
+typedef enum {
+ TYPE, /* get type bits (3, including end bit) */
+ LENS, /* get lengths for stored */
+ STORED, /* processing stored block */
+ TABLE, /* get table lengths */
+ BTREE, /* get bit lengths tree for a dynamic block */
+ DTREE, /* get length, distance trees for a dynamic block */
+ CODES, /* processing fixed or dynamic block */
+ DRY, /* output remaining window bytes */
+ DONE, /* finished last block, done */
+ BAD} /* got a data error--stuck here */
+inflate_block_mode;
+
+/* inflate blocks semi-private state */
+struct inflate_blocks_state {
+
+ /* mode */
+ inflate_block_mode mode; /* current inflate_block mode */
+
+ /* mode dependent information */
+ union {
+ uInt left; /* if STORED, bytes left to copy */
+ struct {
+ uInt table; /* table lengths (14 bits) */
+ uInt index; /* index into blens (or border) */
+ uIntf *blens; /* bit lengths of codes */
+ uInt bb; /* bit length tree depth */
+ inflate_huft *tb; /* bit length decoding tree */
+ } trees; /* if DTREE, decoding info for trees */
+ struct {
+ inflate_codes_statef
+ *codes;
+ } decode; /* if CODES, current state */
+ } sub; /* submode */
+ uInt last; /* true if this block is the last block */
+
+ /* mode independent information */
+ uInt bitk; /* bits in bit buffer */
+ uLong bitb; /* bit buffer */
+ inflate_huft *hufts; /* single malloc for tree space */
+ Bytef *window; /* sliding window */
+ Bytef *end; /* one byte after sliding window */
+ Bytef *read; /* window read pointer */
+ Bytef *write; /* window write pointer */
+ check_func checkfn; /* check function */
+ uLong check; /* check on output */
+
+};
+
+
+/* defines for inflate input/output */
+/* update pointers and return */
+#define UPDBITS {s->bitb=b;s->bitk=k;}
+#define UPDIN {z->avail_in=n;z->total_in+=p-z->next_in;z->next_in=p;}
+#define UPDOUT {s->write=q;}
+#define UPDATE {UPDBITS UPDIN UPDOUT}
+#define LEAVE {UPDATE return inflate_flush(s,z,r);}
+/* get bytes and bits */
+#define LOADIN {p=z->next_in;n=z->avail_in;b=s->bitb;k=s->bitk;}
+#define NEEDBYTE {if(n)r=Z_OK;else LEAVE}
+#define NEXTBYTE (n--,*p++)
+#define NEEDBITS(j) {while(k<(j)){NEEDBYTE;b|=((uLong)NEXTBYTE)<<k;k+=8;}}
+#define DUMPBITS(j) {b>>=(j);k-=(j);}
+/* output bytes */
+#define WAVAIL (uInt)(q<s->read?s->read-q-1:s->end-q)
+#define LOADOUT {q=s->write;m=(uInt)WAVAIL;}
+#define WRAP {if(q==s->end&&s->read!=s->window){q=s->window;m=(uInt)WAVAIL;}}
+#define FLUSH {UPDOUT r=inflate_flush(s,z,r); LOADOUT}
+#define NEEDOUT {if(m==0){WRAP if(m==0){FLUSH WRAP if(m==0) LEAVE}}r=Z_OK;}
+#define OUTBYTE(a) {*q++=(Byte)(a);m--;}
+/* load local pointers */
+#define LOAD {LOADIN LOADOUT}
+
+/* masks for lower bits (size given to avoid silly warnings with Visual C++) */
+#ifndef NO_INFLATE_MASK
+local uInt inflate_mask[17];
+#endif
+
+/* copy as much as possible from the sliding window to the output area */
+local int inflate_flush OF((
+ inflate_blocks_statef *,
+ z_streamp ,
+ int));
+
+#endif
diff --git a/src/gzip/zconf.h b/src/gzip/zconf.h
new file mode 100644
index 0000000..3abf0ba
--- /dev/null
+++ b/src/gzip/zconf.h
@@ -0,0 +1,284 @@
+/* zconf.h -- configuration of the zlib compression library
+ * Copyright (C) 1995-2002 Jean-loup Gailly.
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* @(#) $Id$ */
+
+#ifndef _ZCONF_H
+#define _ZCONF_H
+
+/*
+ * If you *really* need a unique prefix for all types and library functions,
+ * compile with -DZ_PREFIX. The "standard" zlib should be compiled without it.
+ */
+#ifdef Z_PREFIX
+# define deflateInit_ z_deflateInit_
+# define deflate z_deflate
+# define deflateEnd z_deflateEnd
+# define inflateInit_ z_inflateInit_
+# define inflate z_inflate
+# define inflateEnd z_inflateEnd
+# define deflateInit2_ z_deflateInit2_
+# define deflateSetDictionary z_deflateSetDictionary
+# define deflateCopy z_deflateCopy
+# define deflateReset z_deflateReset
+# define deflateParams z_deflateParams
+# define inflateInit2_ z_inflateInit2_
+# define inflateSetDictionary z_inflateSetDictionary
+# define inflateSync z_inflateSync
+# define inflateSyncPoint z_inflateSyncPoint
+# define inflateReset z_inflateReset
+# define compress z_compress
+# define compress2 z_compress2
+# define uncompress z_uncompress
+# define adler32 z_adler32
+# define crc32 z_crc32
+# define get_crc_table z_get_crc_table
+
+# define Byte z_Byte
+# define uInt z_uInt
+# define uLong z_uLong
+# define Bytef z_Bytef
+# define charf z_charf
+# define intf z_intf
+# define uIntf z_uIntf
+# define uLongf z_uLongf
+# define voidpf z_voidpf
+# define voidp z_voidp
+#endif
+
+#if (defined(_WIN32) || defined(__WIN32__)) && !defined(WIN32)
+# define WIN32
+#endif
+#if defined(__GNUC__) || defined(WIN32) || defined(__386__) || defined(i386)
+# ifndef __32BIT__
+# define __32BIT__
+# endif
+#endif
+#if defined(__MSDOS__) && !defined(MSDOS)
+# define MSDOS
+#endif
+
+/* WinCE doesn't have errno.h */
+#ifdef _WIN32_WCE
+# define NO_ERRNO_H
+#endif
+
+
+/*
+ * Compile with -DMAXSEG_64K if the alloc function cannot allocate more
+ * than 64k bytes at a time (needed on systems with 16-bit int).
+ */
+#if defined(MSDOS) && !defined(__32BIT__)
+# define MAXSEG_64K
+#endif
+#ifdef MSDOS
+# define UNALIGNED_OK
+#endif
+
+#if (defined(MSDOS) || defined(_WINDOWS) || defined(WIN32)) && !defined(STDC)
+# define STDC
+#endif
+#if defined(__STDC__) || defined(__cplusplus) || defined(__OS2__)
+# ifndef STDC
+# define STDC
+# endif
+#endif
+
+#ifndef STDC
+# ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */
+# define const
+# endif
+#endif
+
+/* Some Mac compilers merge all .h files incorrectly: */
+#if defined(__MWERKS__) || defined(applec) ||defined(THINK_C) ||defined(__SC__)
+# define NO_DUMMY_DECL
+#endif
+
+/* Old Borland C and LCC incorrectly complains about missing returns: */
+#if defined(__BORLANDC__) && (__BORLANDC__ < 0x500)
+# define NEED_DUMMY_RETURN
+#endif
+
+#if defined(__LCC__)
+# define NEED_DUMMY_RETURN
+#endif
+
+/* Maximum value for memLevel in deflateInit2 */
+#ifndef MAX_MEM_LEVEL
+# ifdef MAXSEG_64K
+# define MAX_MEM_LEVEL 8
+# else
+# define MAX_MEM_LEVEL 9
+# endif
+#endif
+
+/* Maximum value for windowBits in deflateInit2 and inflateInit2.
+ * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files
+ * created by gzip. (Files created by minigzip can still be extracted by
+ * gzip.)
+ */
+#ifndef MAX_WBITS
+# define MAX_WBITS 15 /* 32K LZ77 window */
+#endif
+
+/* The memory requirements for deflate are (in bytes):
+ (1 << (windowBits+2)) + (1 << (memLevel+9))
+ that is: 128K for windowBits=15 + 128K for memLevel = 8 (default values)
+ plus a few kilobytes for small objects. For example, if you want to reduce
+ the default memory requirements from 256K to 128K, compile with
+ make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7"
+ Of course this will generally degrade compression (there's no free lunch).
+
+ The memory requirements for inflate are (in bytes) 1 << windowBits
+ that is, 32K for windowBits=15 (default value) plus a few kilobytes
+ for small objects.
+*/
+
+ /* Type declarations */
+
+#ifndef OF /* function prototypes */
+# ifdef STDC
+# define OF(args) args
+# else
+# define OF(args) ()
+# endif
+#endif
+
+/* The following definitions for FAR are needed only for MSDOS mixed
+ * model programming (small or medium model with some far allocations).
+ * This was tested only with MSC; for other MSDOS compilers you may have
+ * to define NO_MEMCPY in zutil.h. If you don't need the mixed model,
+ * just define FAR to be empty.
+ */
+#if (defined(M_I86SM) || defined(M_I86MM)) && !defined(__32BIT__)
+ /* MSC small or medium model */
+# define SMALL_MEDIUM
+# ifdef _MSC_VER
+# define FAR _far
+# else
+# define FAR far
+# endif
+#endif
+#if defined(__BORLANDC__) && (defined(__SMALL__) || defined(__MEDIUM__))
+# ifndef __32BIT__
+# define SMALL_MEDIUM
+# define FAR _far
+# endif
+#endif
+
+/* Compile with -DZLIB_DLL for Windows DLL support */
+#if defined(ZLIB_DLL)
+# if defined(_WINDOWS) || defined(WINDOWS)
+# ifdef FAR
+# undef FAR
+# endif
+# include <windows.h>
+# define ZEXPORT(x) x WINAPI
+# ifdef WIN32
+# define ZEXPORTVA(x) x WINAPIV
+# else
+# define ZEXPORTVA(x) x FAR _cdecl _export
+# endif
+# endif
+# if defined (__BORLANDC__)
+# if (__BORLANDC__ >= 0x0500) && defined (WIN32)
+# include <windows.h>
+# define ZEXPORT(x) x __declspec(dllexport) WINAPI
+# define ZEXPORTRVA(x) x __declspec(dllexport) WINAPIV
+# else
+# if defined (_Windows) && defined (__DLL__)
+# define ZEXPORT(x) x _export
+# define ZEXPORTVA(x) x _export
+# endif
+# endif
+# endif
+#endif
+
+
+#ifndef ZEXPORT
+# define ZEXPORT(x) static x
+#endif
+#ifndef ZEXPORTVA
+# define ZEXPORTVA(x) static x
+#endif
+#ifndef ZEXTERN
+# define ZEXTERN(x) static x
+#endif
+#ifndef ZEXTERNDEF
+# define ZEXTERNDEF(x) static x
+#endif
+
+#ifndef FAR
+# define FAR
+#endif
+
+#if !defined(MACOS) && !defined(TARGET_OS_MAC)
+typedef unsigned char Byte; /* 8 bits */
+#endif
+typedef unsigned int uInt; /* 16 bits or more */
+typedef unsigned long uLong; /* 32 bits or more */
+
+#ifdef SMALL_MEDIUM
+ /* Borland C/C++ and some old MSC versions ignore FAR inside typedef */
+# define Bytef Byte FAR
+#else
+ typedef Byte FAR Bytef;
+#endif
+typedef char FAR charf;
+typedef int FAR intf;
+typedef uInt FAR uIntf;
+typedef uLong FAR uLongf;
+
+#ifdef STDC
+ typedef void FAR *voidpf;
+ typedef void *voidp;
+#else
+ typedef Byte FAR *voidpf;
+ typedef Byte *voidp;
+#endif
+
+#ifdef HAVE_UNISTD_H
+# include <sys/types.h> /* for off_t */
+# include <unistd.h> /* for SEEK_* and off_t */
+# define z_off_t off_t
+#endif
+#ifndef SEEK_SET
+# define SEEK_SET 0 /* Seek from beginning of file. */
+# define SEEK_CUR 1 /* Seek from current position. */
+# define SEEK_END 2 /* Set file pointer to EOF plus "offset" */
+#endif
+#ifndef z_off_t
+# define z_off_t long
+#endif
+
+/* MVS linker does not support external names larger than 8 bytes */
+#if defined(__MVS__)
+# pragma map(deflateInit_,"DEIN")
+# pragma map(deflateInit2_,"DEIN2")
+# pragma map(deflateEnd,"DEEND")
+# pragma map(inflateInit_,"ININ")
+# pragma map(inflateInit2_,"ININ2")
+# pragma map(inflateEnd,"INEND")
+# pragma map(inflateSync,"INSY")
+# pragma map(inflateSetDictionary,"INSEDI")
+# pragma map(inflate_blocks,"INBL")
+# pragma map(inflate_blocks_new,"INBLNE")
+# pragma map(inflate_blocks_free,"INBLFR")
+# pragma map(inflate_blocks_reset,"INBLRE")
+# pragma map(inflate_codes_free,"INCOFR")
+# pragma map(inflate_codes,"INCO")
+# pragma map(inflate_fast,"INFA")
+# pragma map(inflate_flush,"INFLU")
+# pragma map(inflate_mask,"INMA")
+# pragma map(inflate_set_dictionary,"INSEDI2")
+# pragma map(inflate_copyright,"INCOPY")
+# pragma map(inflate_trees_bits,"INTRBI")
+# pragma map(inflate_trees_dynamic,"INTRDY")
+# pragma map(inflate_trees_fixed,"INTRFI")
+# pragma map(inflate_trees_free,"INTRFR")
+#endif
+
+#endif /* _ZCONF_H */
diff --git a/src/gzip/zlib.h b/src/gzip/zlib.h
new file mode 100644
index 0000000..50d0d3f
--- /dev/null
+++ b/src/gzip/zlib.h
@@ -0,0 +1,830 @@
+/* zlib.h -- interface of the 'zlib' general purpose compression library
+ version 1.1.4, March 11th, 2002
+
+ Copyright (C) 1995-2002 Jean-loup Gailly and Mark Adler
+
+ This software is provided 'as-is', without any express or implied
+ warranty. In no event will the authors be held liable for any damages
+ arising from the use of this software.
+
+ Permission is granted to anyone to use this software for any purpose,
+ including commercial applications, and to alter it and redistribute it
+ freely, subject to the following restrictions:
+
+ 1. The origin of this software must not be misrepresented; you must not
+ claim that you wrote the original software. If you use this software
+ in a product, an acknowledgment in the product documentation would be
+ appreciated but is not required.
+ 2. Altered source versions must be plainly marked as such, and must not be
+ misrepresented as being the original software.
+ 3. This notice may not be removed or altered from any source distribution.
+
+ Jean-loup Gailly Mark Adler
+ jloup@gzip.org madler@alumni.caltech.edu
+
+
+ The data format used by the zlib library is described by RFCs (Request for
+ Comments) 1950 to 1952 in the files ftp://ds.internic.net/rfc/rfc1950.txt
+ (zlib format), rfc1951.txt (deflate format) and rfc1952.txt (gzip format).
+*/
+
+#ifndef _ZLIB_H
+#define _ZLIB_H
+
+#include "zconf.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define ZLIB_VERSION "1.1.4"
+
+/*
+ The 'zlib' compression library provides in-memory compression and
+ decompression functions, including integrity checks of the uncompressed
+ data. This version of the library supports only one compression method
+ (deflation) but other algorithms will be added later and will have the same
+ stream interface.
+
+ Compression can be done in a single step if the buffers are large
+ enough (for example if an input file is mmap'ed), or can be done by
+ repeated calls of the compression function. In the latter case, the
+ application must provide more input and/or consume the output
+ (providing more output space) before each call.
+
+ The library also supports reading and writing files in gzip (.gz) format
+ with an interface similar to that of stdio.
+
+ The library does not install any signal handler. The decoder checks
+ the consistency of the compressed data, so the library should never
+ crash even in case of corrupted input.
+*/
+
+typedef voidpf (*alloc_func) OF((voidpf opaque, uInt items, uInt size));
+typedef void (*free_func) OF((voidpf opaque, voidpf address));
+
+struct internal_state;
+
+typedef struct z_stream_s {
+ Bytef *next_in; /* next input byte */
+ uInt avail_in; /* number of bytes available at next_in */
+ uLong total_in; /* total nb of input bytes read so far */
+
+ Bytef *next_out; /* next output byte should be put there */
+ uInt avail_out; /* remaining free space at next_out */
+ uLong total_out; /* total nb of bytes output so far */
+
+ char *msg; /* last error message, NULL if no error */
+ struct internal_state FAR *state; /* not visible by applications */
+
+ alloc_func zalloc; /* used to allocate the internal state */
+ free_func zfree; /* used to free the internal state */
+ voidpf opaque; /* private data object passed to zalloc and zfree */
+
+ int data_type; /* best guess about the data type: ascii or binary */
+ uLong adler; /* adler32 value of the uncompressed data */
+ uLong reserved; /* reserved for future use */
+} z_stream;
+
+typedef z_stream FAR *z_streamp;
+
+/*
+ The application must update next_in and avail_in when avail_in has
+ dropped to zero. It must update next_out and avail_out when avail_out
+ has dropped to zero. The application must initialize zalloc, zfree and
+ opaque before calling the init function. All other fields are set by the
+ compression library and must not be updated by the application.
+
+ The opaque value provided by the application will be passed as the first
+ parameter for calls of zalloc and zfree. This can be useful for custom
+ memory management. The compression library attaches no meaning to the
+ opaque value.
+
+ zalloc must return Z_NULL if there is not enough memory for the object.
+ If zlib is used in a multi-threaded application, zalloc and zfree must be
+ thread safe.
+
+ On 16-bit systems, the functions zalloc and zfree must be able to allocate
+ exactly 65536 bytes, but will not be required to allocate more than this
+ if the symbol MAXSEG_64K is defined (see zconf.h). WARNING: On MSDOS,
+ pointers returned by zalloc for objects of exactly 65536 bytes *must*
+ have their offset normalized to zero. The default allocation function
+ provided by this library ensures this (see zutil.c). To reduce memory
+ requirements and avoid any allocation of 64K objects, at the expense of
+ compression ratio, compile the library with -DMAX_WBITS=14 (see zconf.h).
+
+ The fields total_in and total_out can be used for statistics or
+ progress reports. After compression, total_in holds the total size of
+ the uncompressed data and may be saved for use in the decompressor
+ (particularly if the decompressor wants to decompress everything in
+ a single step).
+*/
+
+ /* constants */
+
+#define Z_NO_FLUSH 0
+#define Z_PARTIAL_FLUSH 1 /* will be removed, use Z_SYNC_FLUSH instead */
+#define Z_SYNC_FLUSH 2
+#define Z_FULL_FLUSH 3
+#define Z_FINISH 4
+/* Allowed flush values; see deflate() below for details */
+
+#define Z_OK 0
+#define Z_STREAM_END 1
+#define Z_NEED_DICT 2
+#define Z_ERRNO (-1)
+#define Z_STREAM_ERROR (-2)
+#define Z_DATA_ERROR (-3)
+#define Z_MEM_ERROR (-4)
+#define Z_BUF_ERROR (-5)
+#define Z_VERSION_ERROR (-6)
+/* Return codes for the compression/decompression functions. Negative
+ * values are errors, positive values are used for special but normal events.
+ */
+
+#define Z_NO_COMPRESSION 0
+#define Z_BEST_SPEED 1
+#define Z_BEST_COMPRESSION 9
+#define Z_DEFAULT_COMPRESSION (-1)
+/* compression levels */
+
+#define Z_FILTERED 1
+#define Z_HUFFMAN_ONLY 2
+#define Z_DEFAULT_STRATEGY 0
+/* compression strategy; see deflateInit2() below for details */
+
+#define Z_BINARY 0
+#define Z_ASCII 1
+#define Z_UNKNOWN 2
+/* Possible values of the data_type field */
+
+#define Z_DEFLATED 8
+/* The deflate compression method (the only one supported in this version) */
+
+#define Z_NULL 0 /* for initializing zalloc, zfree, opaque */
+
+
+ /* basic functions */
+
+/* The application can compare zlibVersion and ZLIB_VERSION for consistency.
+ If the first character differs, the library code actually used is
+ not compatible with the zlib.h header file used by the application.
+ This check is automatically made by deflateInit and inflateInit.
+ */
+
+/*
+ZEXTERN(int) deflateInit OF((z_streamp strm, int level));
+
+ Initializes the internal stream state for compression. The fields
+ zalloc, zfree and opaque must be initialized before by the caller.
+ If zalloc and zfree are set to Z_NULL, deflateInit updates them to
+ use default allocation functions.
+
+ The compression level must be Z_DEFAULT_COMPRESSION, or between 0 and 9:
+ 1 gives best speed, 9 gives best compression, 0 gives no compression at
+ all (the input data is simply copied a block at a time).
+ Z_DEFAULT_COMPRESSION requests a default compromise between speed and
+ compression (currently equivalent to level 6).
+
+ deflateInit returns Z_OK if success, Z_MEM_ERROR if there was not
+ enough memory, Z_STREAM_ERROR if level is not a valid compression level,
+ Z_VERSION_ERROR if the zlib library version (zlib_version) is incompatible
+ with the version assumed by the caller (ZLIB_VERSION).
+ msg is set to null if there is no error message. deflateInit does not
+ perform any compression: this will be done by deflate().
+*/
+
+
+/*
+ deflate compresses as much data as possible, and stops when the input
+ buffer becomes empty or the output buffer becomes full. It may introduce some
+ output latency (reading input without producing any output) except when
+ forced to flush.
+
+ The detailed semantics are as follows. deflate performs one or both of the
+ following actions:
+
+ - Compress more input starting at next_in and update next_in and avail_in
+ accordingly. If not all input can be processed (because there is not
+ enough room in the output buffer), next_in and avail_in are updated and
+ processing will resume at this point for the next call of deflate().
+
+ - Provide more output starting at next_out and update next_out and avail_out
+ accordingly. This action is forced if the parameter flush is non zero.
+ Forcing flush frequently degrades the compression ratio, so this parameter
+ should be set only when necessary (in interactive applications).
+ Some output may be provided even if flush is not set.
+
+ Before the call of deflate(), the application should ensure that at least
+ one of the actions is possible, by providing more input and/or consuming
+ more output, and updating avail_in or avail_out accordingly; avail_out
+ should never be zero before the call. The application can consume the
+ compressed output when it wants, for example when the output buffer is full
+ (avail_out == 0), or after each call of deflate(). If deflate returns Z_OK
+ and with zero avail_out, it must be called again after making room in the
+ output buffer because there might be more output pending.
+
+ If the parameter flush is set to Z_SYNC_FLUSH, all pending output is
+ flushed to the output buffer and the output is aligned on a byte boundary, so
+ that the decompressor can get all input data available so far. (In particular
+ avail_in is zero after the call if enough output space has been provided
+ before the call.) Flushing may degrade compression for some compression
+ algorithms and so it should be used only when necessary.
+
+ If flush is set to Z_FULL_FLUSH, all output is flushed as with
+ Z_SYNC_FLUSH, and the compression state is reset so that decompression can
+ restart from this point if previous compressed data has been damaged or if
+ random access is desired. Using Z_FULL_FLUSH too often can seriously degrade
+ the compression.
+
+ If deflate returns with avail_out == 0, this function must be called again
+ with the same value of the flush parameter and more output space (updated
+ avail_out), until the flush is complete (deflate returns with non-zero
+ avail_out).
+
+ If the parameter flush is set to Z_FINISH, pending input is processed,
+ pending output is flushed and deflate returns with Z_STREAM_END if there
+ was enough output space; if deflate returns with Z_OK, this function must be
+ called again with Z_FINISH and more output space (updated avail_out) but no
+ more input data, until it returns with Z_STREAM_END or an error. After
+ deflate has returned Z_STREAM_END, the only possible operations on the
+ stream are deflateReset or deflateEnd.
+
+ Z_FINISH can be used immediately after deflateInit if all the compression
+ is to be done in a single step. In this case, avail_out must be at least
+ 0.1% larger than avail_in plus 12 bytes. If deflate does not return
+ Z_STREAM_END, then it must be called again as described above.
+
+ deflate() sets strm->adler to the adler32 checksum of all input read
+ so far (that is, total_in bytes).
+
+ deflate() may update data_type if it can make a good guess about
+ the input data type (Z_ASCII or Z_BINARY). In doubt, the data is considered
+ binary. This field is only for information purposes and does not affect
+ the compression algorithm in any manner.
+
+ deflate() returns Z_OK if some progress has been made (more input
+ processed or more output produced), Z_STREAM_END if all input has been
+ consumed and all output has been produced (only when flush is set to
+ Z_FINISH), Z_STREAM_ERROR if the stream state was inconsistent (for example
+ if next_in or next_out was NULL), Z_BUF_ERROR if no progress is possible
+ (for example avail_in or avail_out was zero).
+*/
+
+
+/*
+ All dynamically allocated data structures for this stream are freed.
+ This function discards any unprocessed input and does not flush any
+ pending output.
+
+ deflateEnd returns Z_OK if success, Z_STREAM_ERROR if the
+ stream state was inconsistent, Z_DATA_ERROR if the stream was freed
+ prematurely (some input or output was discarded). In the error case,
+ msg may be set but then points to a static string (which must not be
+ deallocated).
+*/
+
+
+/*
+ZEXTERN(int) inflateInit OF((z_streamp strm));
+
+ Initializes the internal stream state for decompression. The fields
+ next_in, avail_in, zalloc, zfree and opaque must be initialized before by
+ the caller. If next_in is not Z_NULL and avail_in is large enough (the exact
+ value depends on the compression method), inflateInit determines the
+ compression method from the zlib header and allocates all data structures
+ accordingly; otherwise the allocation will be deferred to the first call of
+ inflate. If zalloc and zfree are set to Z_NULL, inflateInit updates them to
+ use default allocation functions.
+
+ inflateInit returns Z_OK if success, Z_MEM_ERROR if there was not enough
+ memory, Z_VERSION_ERROR if the zlib library version is incompatible with the
+ version assumed by the caller. msg is set to null if there is no error
+ message. inflateInit does not perform any decompression apart from reading
+ the zlib header if present: this will be done by inflate(). (So next_in and
+ avail_in may be modified, but next_out and avail_out are unchanged.)
+*/
+
+
+ZEXTERN(int) inflate OF((z_streamp strm, int flush));
+/*
+ inflate decompresses as much data as possible, and stops when the input
+ buffer becomes empty or the output buffer becomes full. It may some
+ introduce some output latency (reading input without producing any output)
+ except when forced to flush.
+
+ The detailed semantics are as follows. inflate performs one or both of the
+ following actions:
+
+ - Decompress more input starting at next_in and update next_in and avail_in
+ accordingly. If not all input can be processed (because there is not
+ enough room in the output buffer), next_in is updated and processing
+ will resume at this point for the next call of inflate().
+
+ - Provide more output starting at next_out and update next_out and avail_out
+ accordingly. inflate() provides as much output as possible, until there
+ is no more input data or no more space in the output buffer (see below
+ about the flush parameter).
+
+ Before the call of inflate(), the application should ensure that at least
+ one of the actions is possible, by providing more input and/or consuming
+ more output, and updating the next_* and avail_* values accordingly.
+ The application can consume the uncompressed output when it wants, for
+ example when the output buffer is full (avail_out == 0), or after each
+ call of inflate(). If inflate returns Z_OK and with zero avail_out, it
+ must be called again after making room in the output buffer because there
+ might be more output pending.
+
+ If the parameter flush is set to Z_SYNC_FLUSH, inflate flushes as much
+ output as possible to the output buffer. The flushing behavior of inflate is
+ not specified for values of the flush parameter other than Z_SYNC_FLUSH
+ and Z_FINISH, but the current implementation actually flushes as much output
+ as possible anyway.
+
+ inflate() should normally be called until it returns Z_STREAM_END or an
+ error. However if all decompression is to be performed in a single step
+ (a single call of inflate), the parameter flush should be set to
+ Z_FINISH. In this case all pending input is processed and all pending
+ output is flushed; avail_out must be large enough to hold all the
+ uncompressed data. (The size of the uncompressed data may have been saved
+ by the compressor for this purpose.) The next operation on this stream must
+ be inflateEnd to deallocate the decompression state. The use of Z_FINISH
+ is never required, but can be used to inform inflate that a faster routine
+ may be used for the single inflate() call.
+
+ If a preset dictionary is needed at this point (see inflateSetDictionary
+ below), inflate sets strm-adler to the adler32 checksum of the
+ dictionary chosen by the compressor and returns Z_NEED_DICT; otherwise
+ it sets strm->adler to the adler32 checksum of all output produced
+ so far (that is, total_out bytes) and returns Z_OK, Z_STREAM_END or
+ an error code as described below. At the end of the stream, inflate()
+ checks that its computed adler32 checksum is equal to that saved by the
+ compressor and returns Z_STREAM_END only if the checksum is correct.
+
+ inflate() returns Z_OK if some progress has been made (more input processed
+ or more output produced), Z_STREAM_END if the end of the compressed data has
+ been reached and all uncompressed output has been produced, Z_NEED_DICT if a
+ preset dictionary is needed at this point, Z_DATA_ERROR if the input data was
+ corrupted (input stream not conforming to the zlib format or incorrect
+ adler32 checksum), Z_STREAM_ERROR if the stream structure was inconsistent
+ (for example if next_in or next_out was NULL), Z_MEM_ERROR if there was not
+ enough memory, Z_BUF_ERROR if no progress is possible or if there was not
+ enough room in the output buffer when Z_FINISH is used. In the Z_DATA_ERROR
+ case, the application may then call inflateSync to look for a good
+ compression block.
+*/
+
+
+ZEXTERN(int) inflateEnd OF((z_streamp strm));
+/*
+ All dynamically allocated data structures for this stream are freed.
+ This function discards any unprocessed input and does not flush any
+ pending output.
+
+ inflateEnd returns Z_OK if success, Z_STREAM_ERROR if the stream state
+ was inconsistent. In the error case, msg may be set but then points to a
+ static string (which must not be deallocated).
+*/
+
+ /* Advanced functions */
+
+/*
+ The following functions are needed only in some special applications.
+*/
+
+/*
+ZEXTERN(int) deflateInit2 OF((z_streamp strm,
+ int level,
+ int method,
+ int windowBits,
+ int memLevel,
+ int strategy));
+
+ This is another version of deflateInit with more compression options. The
+ fields next_in, zalloc, zfree and opaque must be initialized before by
+ the caller.
+
+ The method parameter is the compression method. It must be Z_DEFLATED in
+ this version of the library.
+
+ The windowBits parameter is the base two logarithm of the window size
+ (the size of the history buffer). It should be in the range 8..15 for this
+ version of the library. Larger values of this parameter result in better
+ compression at the expense of memory usage. The default value is 15 if
+ deflateInit is used instead.
+
+ The memLevel parameter specifies how much memory should be allocated
+ for the internal compression state. memLevel=1 uses minimum memory but
+ is slow and reduces compression ratio; memLevel=9 uses maximum memory
+ for optimal speed. The default value is 8. See zconf.h for total memory
+ usage as a function of windowBits and memLevel.
+
+ The strategy parameter is used to tune the compression algorithm. Use the
+ value Z_DEFAULT_STRATEGY for normal data, Z_FILTERED for data produced by a
+ filter (or predictor), or Z_HUFFMAN_ONLY to force Huffman encoding only (no
+ string match). Filtered data consists mostly of small values with a
+ somewhat random distribution. In this case, the compression algorithm is
+ tuned to compress them better. The effect of Z_FILTERED is to force more
+ Huffman coding and less string matching; it is somewhat intermediate
+ between Z_DEFAULT and Z_HUFFMAN_ONLY. The strategy parameter only affects
+ the compression ratio but not the correctness of the compressed output even
+ if it is not set appropriately.
+
+ deflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough
+ memory, Z_STREAM_ERROR if a parameter is invalid (such as an invalid
+ method). msg is set to null if there is no error message. deflateInit2 does
+ not perform any compression: this will be done by deflate().
+*/
+
+/*
+ Initializes the compression dictionary from the given byte sequence
+ without producing any compressed output. This function must be called
+ immediately after deflateInit, deflateInit2 or deflateReset, before any
+ call of deflate. The compressor and decompressor must use exactly the same
+ dictionary (see inflateSetDictionary).
+
+ The dictionary should consist of strings (byte sequences) that are likely
+ to be encountered later in the data to be compressed, with the most commonly
+ used strings preferably put towards the end of the dictionary. Using a
+ dictionary is most useful when the data to be compressed is short and can be
+ predicted with good accuracy; the data can then be compressed better than
+ with the default empty dictionary.
+
+ Depending on the size of the compression data structures selected by
+ deflateInit or deflateInit2, a part of the dictionary may in effect be
+ discarded, for example if the dictionary is larger than the window size in
+ deflate or deflate2. Thus the strings most likely to be useful should be
+ put at the end of the dictionary, not at the front.
+
+ Upon return of this function, strm->adler is set to the Adler32 value
+ of the dictionary; the decompressor may later use this value to determine
+ which dictionary has been used by the compressor. (The Adler32 value
+ applies to the whole dictionary even if only a subset of the dictionary is
+ actually used by the compressor.)
+
+ deflateSetDictionary returns Z_OK if success, or Z_STREAM_ERROR if a
+ parameter is invalid (such as NULL dictionary) or the stream state is
+ inconsistent (for example if deflate has already been called for this stream
+ or if the compression method is bsort). deflateSetDictionary does not
+ perform any compression: this will be done by deflate().
+*/
+
+/*
+ Sets the destination stream as a complete copy of the source stream.
+
+ This function can be useful when several compression strategies will be
+ tried, for example when there are several ways of pre-processing the input
+ data with a filter. The streams that will be discarded should then be freed
+ by calling deflateEnd. Note that deflateCopy duplicates the internal
+ compression state which can be quite large, so this strategy is slow and
+ can consume lots of memory.
+
+ deflateCopy returns Z_OK if success, Z_MEM_ERROR if there was not
+ enough memory, Z_STREAM_ERROR if the source stream state was inconsistent
+ (such as zalloc being NULL). msg is left unchanged in both source and
+ destination.
+*/
+
+/*
+ This function is equivalent to deflateEnd followed by deflateInit,
+ but does not free and reallocate all the internal compression state.
+ The stream will keep the same compression level and any other attributes
+ that may have been set by deflateInit2.
+
+ deflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source
+ stream state was inconsistent (such as zalloc or state being NULL).
+*/
+
+/*
+ Dynamically update the compression level and compression strategy. The
+ interpretation of level and strategy is as in deflateInit2. This can be
+ used to switch between compression and straight copy of the input data, or
+ to switch to a different kind of input data requiring a different
+ strategy. If the compression level is changed, the input available so far
+ is compressed with the old level (and may be flushed); the new level will
+ take effect only at the next call of deflate().
+
+ Before the call of deflateParams, the stream state must be set as for
+ a call of deflate(), since the currently available input may have to
+ be compressed and flushed. In particular, strm->avail_out must be non-zero.
+
+ deflateParams returns Z_OK if success, Z_STREAM_ERROR if the source
+ stream state was inconsistent or if a parameter was invalid, Z_BUF_ERROR
+ if strm->avail_out was zero.
+*/
+
+/*
+ZEXTERN(int) inflateInit2 OF((z_streamp strm,
+ int windowBits));
+
+ This is another version of inflateInit with an extra parameter. The
+ fields next_in, avail_in, zalloc, zfree and opaque must be initialized
+ before by the caller.
+
+ The windowBits parameter is the base two logarithm of the maximum window
+ size (the size of the history buffer). It should be in the range 8..15 for
+ this version of the library. The default value is 15 if inflateInit is used
+ instead. If a compressed stream with a larger window size is given as
+ input, inflate() will return with the error code Z_DATA_ERROR instead of
+ trying to allocate a larger window.
+
+ inflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough
+ memory, Z_STREAM_ERROR if a parameter is invalid (such as a negative
+ memLevel). msg is set to null if there is no error message. inflateInit2
+ does not perform any decompression apart from reading the zlib header if
+ present: this will be done by inflate(). (So next_in and avail_in may be
+ modified, but next_out and avail_out are unchanged.)
+*/
+
+/*
+ Initializes the decompression dictionary from the given uncompressed byte
+ sequence. This function must be called immediately after a call of inflate
+ if this call returned Z_NEED_DICT. The dictionary chosen by the compressor
+ can be determined from the Adler32 value returned by this call of
+ inflate. The compressor and decompressor must use exactly the same
+ dictionary (see deflateSetDictionary).
+
+ inflateSetDictionary returns Z_OK if success, Z_STREAM_ERROR if a
+ parameter is invalid (such as NULL dictionary) or the stream state is
+ inconsistent, Z_DATA_ERROR if the given dictionary doesn't match the
+ expected one (incorrect Adler32 value). inflateSetDictionary does not
+ perform any decompression: this will be done by subsequent calls of
+ inflate().
+*/
+
+/*
+ Skips invalid compressed data until a full flush point (see above the
+ description of deflate with Z_FULL_FLUSH) can be found, or until all
+ available input is skipped. No output is provided.
+
+ inflateSync returns Z_OK if a full flush point has been found, Z_BUF_ERROR
+ if no more input was provided, Z_DATA_ERROR if no flush point has been found,
+ or Z_STREAM_ERROR if the stream structure was inconsistent. In the success
+ case, the application may save the current current value of total_in which
+ indicates where valid compressed data was found. In the error case, the
+ application may repeatedly call inflateSync, providing more input each time,
+ until success or end of the input data.
+*/
+
+ZEXTERN(int) inflateReset OF((z_streamp strm));
+/*
+ This function is equivalent to inflateEnd followed by inflateInit,
+ but does not free and reallocate all the internal decompression state.
+ The stream will keep attributes that may have been set by inflateInit2.
+
+ inflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source
+ stream state was inconsistent (such as zalloc or state being NULL).
+*/
+
+
+ /* utility functions */
+
+/*
+ The following utility functions are implemented on top of the
+ basic stream-oriented functions. To simplify the interface, some
+ default options are assumed (compression level and memory usage,
+ standard memory allocation functions). The source code of these
+ utility functions can easily be modified if you need special options.
+*/
+
+/*
+ Compresses the source buffer into the destination buffer. sourceLen is
+ the byte length of the source buffer. Upon entry, destLen is the total
+ size of the destination buffer, which must be at least 0.1% larger than
+ sourceLen plus 12 bytes. Upon exit, destLen is the actual size of the
+ compressed buffer.
+ This function can be used to compress a whole file at once if the
+ input file is mmap'ed.
+ compress returns Z_OK if success, Z_MEM_ERROR if there was not
+ enough memory, Z_BUF_ERROR if there was not enough room in the output
+ buffer.
+*/
+
+/*
+ Compresses the source buffer into the destination buffer. The level
+ parameter has the same meaning as in deflateInit. sourceLen is the byte
+ length of the source buffer. Upon entry, destLen is the total size of the
+ destination buffer, which must be at least 0.1% larger than sourceLen plus
+ 12 bytes. Upon exit, destLen is the actual size of the compressed buffer.
+
+ compress2 returns Z_OK if success, Z_MEM_ERROR if there was not enough
+ memory, Z_BUF_ERROR if there was not enough room in the output buffer,
+ Z_STREAM_ERROR if the level parameter is invalid.
+*/
+
+/*
+ Decompresses the source buffer into the destination buffer. sourceLen is
+ the byte length of the source buffer. Upon entry, destLen is the total
+ size of the destination buffer, which must be large enough to hold the
+ entire uncompressed data. (The size of the uncompressed data must have
+ been saved previously by the compressor and transmitted to the decompressor
+ by some mechanism outside the scope of this compression library.)
+ Upon exit, destLen is the actual size of the compressed buffer.
+ This function can be used to decompress a whole file at once if the
+ input file is mmap'ed.
+
+ uncompress returns Z_OK if success, Z_MEM_ERROR if there was not
+ enough memory, Z_BUF_ERROR if there was not enough room in the output
+ buffer, or Z_DATA_ERROR if the input data was corrupted.
+*/
+
+
+/*
+ Opens a gzip (.gz) file for reading or writing. The mode parameter
+ is as in fopen ("rb" or "wb") but can also include a compression level
+ ("wb9") or a strategy: 'f' for filtered data as in "wb6f", 'h' for
+ Huffman only compression as in "wb1h". (See the description
+ of deflateInit2 for more information about the strategy parameter.)
+
+ gzopen can be used to read a file which is not in gzip format; in this
+ case gzread will directly read from the file without decompression.
+
+ gzopen returns NULL if the file could not be opened or if there was
+ insufficient memory to allocate the (de)compression state; errno
+ can be checked to distinguish the two cases (if errno is zero, the
+ zlib error is Z_MEM_ERROR). */
+
+/*
+ gzdopen() associates a gzFile with the file descriptor fd. File
+ descriptors are obtained from calls like open, dup, creat, pipe or
+ fileno (in the file has been previously opened with fopen).
+ The mode parameter is as in gzopen.
+ The next call of gzclose on the returned gzFile will also close the
+ file descriptor fd, just like fclose(fdopen(fd), mode) closes the file
+ descriptor fd. If you want to keep fd open, use gzdopen(dup(fd), mode).
+ gzdopen returns NULL if there was insufficient memory to allocate
+ the (de)compression state.
+*/
+
+/*
+ Dynamically update the compression level or strategy. See the description
+ of deflateInit2 for the meaning of these parameters.
+ gzsetparams returns Z_OK if success, or Z_STREAM_ERROR if the file was not
+ opened for writing.
+*/
+
+/*
+ Reads the given number of uncompressed bytes from the compressed file.
+ If the input file was not in gzip format, gzread copies the given number
+ of bytes into the buffer.
+ gzread returns the number of uncompressed bytes actually read (0 for
+ end of file, -1 for error). */
+
+/*
+ Writes the given number of uncompressed bytes into the compressed file.
+ gzwrite returns the number of uncompressed bytes actually written
+ (0 in case of error).
+*/
+
+/*
+ Converts, formats, and writes the args to the compressed file under
+ control of the format string, as in fprintf. gzprintf returns the number of
+ uncompressed bytes actually written (0 in case of error).
+*/
+
+/*
+ Writes the given null-terminated string to the compressed file, excluding
+ the terminating null character.
+ gzputs returns the number of characters written, or -1 in case of error.
+*/
+
+/*
+ Reads bytes from the compressed file until len-1 characters are read, or
+ a newline character is read and transferred to buf, or an end-of-file
+ condition is encountered. The string is then terminated with a null
+ character.
+ gzgets returns buf, or Z_NULL in case of error.
+*/
+
+/*
+ Writes c, converted to an unsigned char, into the compressed file.
+ gzputc returns the value that was written, or -1 in case of error.
+*/
+
+/*
+ Reads one byte from the compressed file. gzgetc returns this byte
+ or -1 in case of end of file or error.
+*/
+
+/*
+ Flushes all pending output into the compressed file. The parameter
+ flush is as in the deflate() function. The return value is the zlib
+ error number (see function gzerror below). gzflush returns Z_OK if
+ the flush parameter is Z_FINISH and all output could be flushed.
+ gzflush should be called only when strictly necessary because it can
+ degrade compression.
+*/
+
+/*
+ Sets the starting position for the next gzread or gzwrite on the
+ given compressed file. The offset represents a number of bytes in the
+ uncompressed data stream. The whence parameter is defined as in lseek(2);
+ the value SEEK_END is not supported.
+ If the file is opened for reading, this function is emulated but can be
+ extremely slow. If the file is opened for writing, only forward seeks are
+ supported; gzseek then compresses a sequence of zeroes up to the new
+ starting position.
+
+ gzseek returns the resulting offset location as measured in bytes from
+ the beginning of the uncompressed stream, or -1 in case of error, in
+ particular if the file is opened for writing and the new starting position
+ would be before the current position.
+*/
+
+/*
+ Rewinds the given file. This function is supported only for reading.
+
+ gzrewind(file) is equivalent to (int)gzseek(file, 0L, SEEK_SET)
+*/
+
+/*
+ Returns the starting position for the next gzread or gzwrite on the
+ given compressed file. This position represents a number of bytes in the
+ uncompressed data stream.
+
+ gztell(file) is equivalent to gzseek(file, 0L, SEEK_CUR)
+*/
+
+/*
+ Returns 1 when EOF has previously been detected reading the given
+ input stream, otherwise zero.
+*/
+
+/*
+ Flushes all pending output if necessary, closes the compressed file
+ and deallocates all the (de)compression state. The return value is the zlib
+ error number (see function gzerror below).
+*/
+
+/*
+ Returns the error message for the last error which occurred on the
+ given compressed file. errnum is set to zlib error number. If an
+ error occurred in the file system and not in the compression library,
+ errnum is set to Z_ERRNO and the application may consult errno
+ to get the exact error code.
+*/
+
+ /* checksum functions */
+
+/*
+ These functions are not related to compression but are exported
+ anyway because they might be useful in applications using the
+ compression library.
+*/
+
+ZEXTERN(uLong) adler32 OF((uLong adler, const Bytef *buf, uInt len));
+
+/*
+ Update a running Adler-32 checksum with the bytes buf[0..len-1] and
+ return the updated checksum. If buf is NULL, this function returns
+ the required initial value for the checksum.
+ An Adler-32 checksum is almost as reliable as a CRC32 but can be computed
+ much faster. Usage example:
+
+ uLong adler = adler32(0L, Z_NULL, 0);
+
+ while (read_buffer(buffer, length) != EOF) {
+ adler = adler32(adler, buffer, length);
+ }
+ if (adler != original_adler) error();
+*/
+
+/*
+ Update a running crc with the bytes buf[0..len-1] and return the updated
+ crc. If buf is NULL, this function returns the required initial value
+ for the crc. Pre- and post-conditioning (one's complement) is performed
+ within this function so it shouldn't be done by the application.
+ Usage example:
+
+ uLong crc = crc32(0L, Z_NULL, 0);
+
+ while (read_buffer(buffer, length) != EOF) {
+ crc = crc32(crc, buffer, length);
+ }
+ if (crc != original_crc) error();
+*/
+
+
+ /* various hacks, don't look :) */
+
+/* deflateInit and inflateInit are macros to allow checking the zlib version
+ * and the compiler's view of z_stream:
+ */
+ZEXTERN(int) inflateInit2_ OF((z_streamp strm, int windowBits,
+ const char *version, int stream_size));
+#define deflateInit(strm, level) \
+ deflateInit_((strm), (level), ZLIB_VERSION, sizeof(z_stream))
+#define inflateInit(strm) \
+ inflateInit_((strm), ZLIB_VERSION, sizeof(z_stream))
+#define deflateInit2(strm, level, method, windowBits, memLevel, strategy) \
+ deflateInit2_((strm),(level),(method),(windowBits),(memLevel),\
+ (strategy), ZLIB_VERSION, sizeof(z_stream))
+#define inflateInit2(strm, windowBits) \
+ inflateInit2_((strm), (windowBits), ZLIB_VERSION, sizeof(z_stream))
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _ZLIB_H */
diff --git a/src/gzip/zutil.c b/src/gzip/zutil.c
new file mode 100644
index 0000000..7ad0c1f
--- /dev/null
+++ b/src/gzip/zutil.c
@@ -0,0 +1,181 @@
+/* zutil.c -- target dependent utility functions for the compression library
+ * Copyright (C) 1995-2002 Jean-loup Gailly.
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* @(#) $Id$ */
+
+#include "zutil.h"
+
+#ifndef STDC
+extern void exit OF((int));
+#endif
+
+
+#ifndef HAVE_MEMCPY
+
+void zmemcpy(dest, source, len)
+ Bytef* dest;
+ const Bytef* source;
+ uInt len;
+{
+ if (len == 0) return;
+ do {
+ *dest++ = *source++; /* ??? to be unrolled */
+ } while (--len != 0);
+}
+
+int zmemcmp(s1, s2, len)
+ const Bytef* s1;
+ const Bytef* s2;
+ uInt len;
+{
+ uInt j;
+
+ for (j = 0; j < len; j++) {
+ if (s1[j] != s2[j]) return 2*(s1[j] > s2[j])-1;
+ }
+ return 0;
+}
+
+void zmemzero(dest, len)
+ Bytef* dest;
+ uInt len;
+{
+ if (len == 0) return;
+ do {
+ *dest++ = 0; /* ??? to be unrolled */
+ } while (--len != 0);
+}
+#endif
+
+#if defined( MSDOS ) && defined( __TURBOC__ ) && !defined( MY_ZCALLOC )
+#if (defined( __BORLANDC__) || !defined(SMALL_MEDIUM)) && !defined(__32BIT__)
+/* Small and medium model in Turbo C are for now limited to near allocation
+ * with reduced MAX_WBITS and MAX_MEM_LEVEL
+ */
+# define MY_ZCALLOC
+
+/* Turbo C malloc() does not allow dynamic allocation of 64K bytes
+ * and farmalloc(64K) returns a pointer with an offset of 8, so we
+ * must fix the pointer. Warning: the pointer must be put back to its
+ * original form in order to free it, use zcfree().
+ */
+
+#define MAX_PTR 10
+/* 10*64K = 640K */
+
+local int next_ptr = 0;
+
+typedef struct ptr_table_s {
+ voidpf org_ptr;
+ voidpf new_ptr;
+} ptr_table;
+
+local ptr_table table[MAX_PTR];
+/* This table is used to remember the original form of pointers
+ * to large buffers (64K). Such pointers are normalized with a zero offset.
+ * Since MSDOS is not a preemptive multitasking OS, this table is not
+ * protected from concurrent access. This hack doesn't work anyway on
+ * a protected system like OS/2. Use Microsoft C instead.
+ */
+
+voidpf zcalloc (voidpf opaque, unsigned items, unsigned size)
+{
+ voidpf buf = opaque; /* just to make some compilers happy */
+ ulg bsize = (ulg)items*size;
+
+ /* If we allocate less than 65520 bytes, we assume that farmalloc
+ * will return a usable pointer which doesn't have to be normalized.
+ */
+ if (bsize < 65520L) {
+ buf = farmalloc(bsize);
+ if (*(ush*)&buf != 0) return buf;
+ } else {
+ buf = farmalloc(bsize + 16L);
+ }
+ if (buf == NULL || next_ptr >= MAX_PTR) return NULL;
+ table[next_ptr].org_ptr = buf;
+
+ /* Normalize the pointer to seg:0 */
+ *((ush*)&buf+1) += ((ush)((uch*)buf-0) + 15) >> 4;
+ *(ush*)&buf = 0;
+ table[next_ptr++].new_ptr = buf;
+ return buf;
+}
+
+void zcfree (voidpf opaque, voidpf ptr)
+{
+ int n;
+ if (*(ush*)&ptr != 0) { /* object < 64K */
+ farfree(ptr);
+ return;
+ }
+ /* Find the original pointer */
+ for (n = 0; n < next_ptr; n++) {
+ if (ptr != table[n].new_ptr) continue;
+
+ farfree(table[n].org_ptr);
+ while (++n < next_ptr) {
+ table[n-1] = table[n];
+ }
+ next_ptr--;
+ return;
+ }
+ ptr = opaque; /* just to make some compilers happy */
+ Assert(0, "zcfree: ptr not found");
+}
+#endif
+#endif /* MSDOS && __TURBOC__ */
+
+
+#if defined(M_I86) && !defined(__32BIT__) && !defined( MY_ZCALLOC )
+/* Microsoft C in 16-bit mode */
+
+# define MY_ZCALLOC
+
+#if (!defined(_MSC_VER) || (_MSC_VER <= 600))
+# define _halloc halloc
+# define _hfree hfree
+#endif
+
+voidpf zcalloc (voidpf opaque, unsigned items, unsigned size)
+{
+ if (opaque) opaque = 0; /* to make compiler happy */
+ return _halloc((long)items, size);
+}
+
+void zcfree (voidpf opaque, voidpf ptr)
+{
+ if (opaque) opaque = 0; /* to make compiler happy */
+ _hfree(ptr);
+}
+
+#endif /* MSC */
+
+
+#ifndef MY_ZCALLOC /* Any system without a special alloc function */
+
+#ifndef STDC
+extern voidp ft_scalloc OF((uInt items, uInt size));
+extern void ft_sfree OF((voidpf ptr));
+#endif
+
+voidpf zcalloc (opaque, items, size)
+ voidpf opaque;
+ unsigned items;
+ unsigned size;
+{
+ if (opaque) items += size - size; /* make compiler happy */
+ return (voidpf)ft_scalloc(items, size);
+}
+
+void zcfree (opaque, ptr)
+ voidpf opaque;
+ voidpf ptr;
+{
+ ft_sfree(ptr);
+ if (opaque) return; /* make compiler happy */
+}
+
+#endif /* MY_ZCALLOC */
diff --git a/src/gzip/zutil.h b/src/gzip/zutil.h
new file mode 100644
index 0000000..c9688cd
--- /dev/null
+++ b/src/gzip/zutil.h
@@ -0,0 +1,215 @@
+/* zutil.h -- internal interface and configuration of the compression library
+ * Copyright (C) 1995-2002 Jean-loup Gailly.
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* WARNING: this file should *not* be used by applications. It is
+ part of the implementation of the compression library and is
+ subject to change. Applications should only use zlib.h.
+ */
+
+/* @(#) $Id$ */
+
+#ifndef _Z_UTIL_H
+#define _Z_UTIL_H
+
+#include "zlib.h"
+
+#ifdef STDC
+# include <stddef.h>
+# include <string.h>
+# include <stdlib.h>
+#endif
+#ifdef NO_ERRNO_H
+ extern int errno;
+#else
+# include <errno.h>
+#endif
+
+#ifndef local
+# define local static
+#endif
+/* compile with -Dlocal if your debugger can't find static symbols */
+
+typedef unsigned char uch;
+typedef uch FAR uchf;
+typedef unsigned short ush;
+typedef ush FAR ushf;
+typedef unsigned long ulg;
+
+
+#define ERR_RETURN(strm,err) \
+ return (strm->msg = (char*)ERR_MSG(err), (err))
+/* To be used only when the state is known to be valid */
+
+ /* common constants */
+
+#ifndef DEF_WBITS
+# define DEF_WBITS MAX_WBITS
+#endif
+/* default windowBits for decompression. MAX_WBITS is for compression only */
+
+#if MAX_MEM_LEVEL >= 8
+# define DEF_MEM_LEVEL 8
+#else
+# define DEF_MEM_LEVEL MAX_MEM_LEVEL
+#endif
+/* default memLevel */
+
+#define STORED_BLOCK 0
+#define STATIC_TREES 1
+#define DYN_TREES 2
+/* The three kinds of block type */
+
+#define MIN_MATCH 3
+#define MAX_MATCH 258
+/* The minimum and maximum match lengths */
+
+#define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */
+
+ /* target dependencies */
+
+#ifdef MSDOS
+# define OS_CODE 0x00
+# if defined(__TURBOC__) || defined(__BORLANDC__)
+# if(__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__))
+ /* Allow compilation with ANSI keywords only enabled */
+ void _Cdecl farfree( void *block );
+ void *_Cdecl farmalloc( unsigned long nbytes );
+# else
+# include <alloc.h>
+# endif
+# else /* MSC or DJGPP */
+# endif
+#endif
+
+#ifdef OS2
+# define OS_CODE 0x06
+#endif
+
+#ifdef WIN32 /* Window 95 & Windows NT */
+# define OS_CODE 0x0b
+#endif
+
+#if defined(VAXC) || defined(VMS)
+# define OS_CODE 0x02
+# define F_OPEN(name, mode) \
+ ft_fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512")
+#endif
+
+#ifdef AMIGA
+# define OS_CODE 0x01
+#endif
+
+#if defined(ATARI) || defined(atarist)
+# define OS_CODE 0x05
+#endif
+
+#if defined(MACOS) || defined(TARGET_OS_MAC)
+# define OS_CODE 0x07
+# if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os
+# include <unix.h> /* for fdopen */
+# else
+# ifndef fdopen
+# define fdopen(fd,mode) NULL /* No fdopen() */
+# endif
+# endif
+#endif
+
+#ifdef __50SERIES /* Prime/PRIMOS */
+# define OS_CODE 0x0F
+#endif
+
+#ifdef TOPS20
+# define OS_CODE 0x0a
+#endif
+
+#if defined(_BEOS_) || defined(RISCOS)
+# define fdopen(fd,mode) NULL /* No fdopen() */
+#endif
+
+#if (defined(_MSC_VER) && (_MSC_VER > 600))
+# define fdopen(fd,type) _fdopen(fd,type)
+#endif
+
+
+ /* Common defaults */
+
+#ifndef OS_CODE
+# define OS_CODE 0x03 /* assume Unix */
+#endif
+
+#ifndef F_OPEN
+# define F_OPEN(name, mode) ft_fopen((name), (mode))
+#endif
+
+ /* functions */
+
+#ifdef HAVE_STRERROR
+ extern char *strerror OF((int));
+# define zstrerror(errnum) strerror(errnum)
+#else
+# define zstrerror(errnum) ""
+#endif
+
+#if defined(pyr)
+# define NO_MEMCPY
+#endif
+#if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__)
+ /* Use our own functions for small and medium model with MSC <= 5.0.
+ * You may have to use the same strategy for Borland C (untested).
+ * The __SC__ check is for Symantec.
+ */
+# define NO_MEMCPY
+#endif
+#if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY)
+# define HAVE_MEMCPY
+#endif
+#ifdef HAVE_MEMCPY
+# ifdef SMALL_MEDIUM /* MSDOS small or medium model */
+# define zmemcpy _fmemcpy
+# define zmemcmp _fmemcmp
+# define zmemzero(dest, len) _fmemset(dest, 0, len)
+# else
+# define zmemcpy ft_memcpy
+# define zmemcmp ft_memcmp
+# define zmemzero(dest, len) ft_memset(dest, 0, len)
+# endif
+#else
+ extern void zmemcpy OF((Bytef* dest, const Bytef* source, uInt len));
+ extern int zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len));
+ extern void zmemzero OF((Bytef* dest, uInt len));
+#endif
+
+/* Diagnostic functions */
+#ifdef DEBUG
+# include <stdio.h>
+ extern int z_verbose;
+ extern void z_error OF((char *m));
+# define Assert(cond,msg) {if(!(cond)) z_error(msg);}
+# define Trace(x) {if (z_verbose>=0) fprintf x ;}
+# define Tracev(x) {if (z_verbose>0) fprintf x ;}
+# define Tracevv(x) {if (z_verbose>1) fprintf x ;}
+# define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;}
+# define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;}
+#else
+# define Assert(cond,msg)
+# define Trace(x)
+# define Tracev(x)
+# define Tracevv(x)
+# define Tracec(c,x)
+# define Tracecv(c,x)
+#endif
+
+
+typedef uLong (*check_func) OF((uLong check, const Bytef *buf,
+ uInt len));
+local voidpf zcalloc OF((voidpf opaque, unsigned items, unsigned size));
+local void zcfree OF((voidpf opaque, voidpf ptr));
+
+#define ZALLOC(strm, items, size) \
+ (*((strm)->zalloc))((strm)->opaque, (items), (size))
+#define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr))
+#define TRY_FREE(s, p) {if (p) ZFREE(s, p);}
+
+#endif /* _Z_UTIL_H */
diff --git a/src/pshinter/pshglob.c b/src/pshinter/pshglob.c
index 9285efc..f75bae4 100644
--- a/src/pshinter/pshglob.c
+++ b/src/pshinter/pshglob.c
@@ -5,7 +5,7 @@
/* PostScript hinter global hinting management (body). */
/* Inspired by the new auto-hinter module. */
/* */
-/* Copyright 2001-2004, 2006, 2010, 2012 by */
+/* Copyright 2001-2004, 2006, 2010, 2012, 2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used */
@@ -757,7 +757,7 @@
FT_Fixed x_delta,
FT_Fixed y_delta )
{
- PSH_Dimension dim = &globals->dimension[0];
+ PSH_Dimension dim;
dim = &globals->dimension[0];
diff --git a/src/raster/ftraster.c b/src/raster/ftraster.c
index 4865994..8aa1113 100644
--- a/src/raster/ftraster.c
+++ b/src/raster/ftraster.c
@@ -24,8 +24,8 @@
/* */
/* - copy `src/raster/ftraster.c' (this file) to your current directory */
/* */
- /* - copy `include/freetype/ftimage.h' and `src/raster/ftmisc.h' */
- /* to your current directory */
+ /* - copy `include/ftimage.h' and `src/raster/ftmisc.h' to your current */
+ /* directory */
/* */
/* - compile `ftraster' with the _STANDALONE_ macro defined, as in */
/* */
@@ -453,8 +453,10 @@
#define FRAC( x ) ( (x) & ( ras.precision - 1 ) )
#define SCALED( x ) ( ( (ULong)(x) << ras.scale_shift ) - ras.precision_half )
-#define IS_BOTTOM_OVERSHOOT( x ) ( CEILING( x ) - x >= ras.precision_half )
-#define IS_TOP_OVERSHOOT( x ) ( x - FLOOR( x ) >= ras.precision_half )
+#define IS_BOTTOM_OVERSHOOT( x ) \
+ (Bool)( CEILING( x ) - x >= ras.precision_half )
+#define IS_TOP_OVERSHOOT( x ) \
+ (Bool)( x - FLOOR( x ) >= ras.precision_half )
/* The most used variables are positioned at the top of the structure. */
/* Thus, their offset can be coded with less opcodes, resulting in a */
diff --git a/src/sfnt/pngshim.c b/src/sfnt/pngshim.c
index 408f879..878de1f 100644
--- a/src/sfnt/pngshim.c
+++ b/src/sfnt/pngshim.c
@@ -122,7 +122,7 @@
error_callback( png_structp png,
png_const_charp error_msg )
{
- FT_Error* error = png_get_error_ptr( png );
+ FT_Error* error = (FT_Error*)png_get_error_ptr( png );
FT_UNUSED( error_msg );
@@ -159,7 +159,7 @@
if ( FT_FRAME_ENTER( length ) )
{
- FT_Error* e = png_get_error_ptr( png );
+ FT_Error* e = (FT_Error*)png_get_error_ptr( png );
*e = FT_THROW( Invalid_Stream_Read );
@@ -174,16 +174,18 @@
}
- static FT_Error
- Load_SBit_Png( FT_Bitmap* map,
+ FT_LOCAL_DEF( FT_Error )
+ Load_SBit_Png( FT_GlyphSlot slot,
FT_Int x_offset,
FT_Int y_offset,
FT_Int pix_bits,
TT_SBit_Metrics metrics,
FT_Memory memory,
FT_Byte* data,
- FT_UInt png_len )
+ FT_UInt png_len,
+ FT_Bool populate_map_and_metrics )
{
+ FT_Bitmap *map = &slot->bitmap;
FT_Error error = FT_Err_Ok;
FT_StreamRec stream;
@@ -193,12 +195,21 @@
int bitdepth, color_type, interlace;
FT_Int i;
- png_byte* *rows;
+ png_byte* *rows = NULL; /* pacify compiler */
- if ( x_offset < 0 || x_offset + metrics->width > map->width ||
- y_offset < 0 || y_offset + metrics->height > map->rows ||
- pix_bits != 32 || map->pixel_mode != FT_PIXEL_MODE_BGRA )
+ if ( x_offset < 0 ||
+ y_offset < 0 )
+ {
+ error = FT_THROW( Invalid_Argument );
+ goto Exit;
+ }
+
+ if ( !populate_map_and_metrics &&
+ ( x_offset + metrics->width > map->width ||
+ y_offset + metrics->height > map->rows ||
+ pix_bits != 32 ||
+ map->pixel_mode != FT_PIXEL_MODE_BGRA ) )
{
error = FT_THROW( Invalid_Argument );
goto Exit;
@@ -238,11 +249,33 @@
&bitdepth, &color_type, &interlace,
NULL, NULL );
- if ( error != FT_Err_Ok ||
- (FT_Int)imgWidth != metrics->width ||
- (FT_Int)imgHeight != metrics->height )
+ if ( error ||
+ ( !populate_map_and_metrics &&
+ ( (FT_Int)imgWidth != metrics->width ||
+ (FT_Int)imgHeight != metrics->height ) ) )
goto DestroyExit;
+ if ( populate_map_and_metrics )
+ {
+ FT_Long size;
+
+
+ metrics->width = (FT_Int)imgWidth;
+ metrics->height = (FT_Int)imgHeight;
+
+ map->width = metrics->width;
+ map->rows = metrics->height;
+ map->pixel_mode = FT_PIXEL_MODE_BGRA;
+ map->pitch = map->width * 4;
+ map->num_grays = 256;
+
+ size = map->rows * map->pitch;
+
+ error = ft_glyphslot_alloc_bitmap( slot, size );
+ if ( error )
+ goto DestroyExit;
+ }
+
/* convert palette/gray image to rgb */
if ( color_type == PNG_COLOR_TYPE_PALETTE )
png_set_palette_to_rgb( png );
diff --git a/src/sfnt/pngshim.h b/src/sfnt/pngshim.h
index 8a2e69c..dc9ecaf 100644
--- a/src/sfnt/pngshim.h
+++ b/src/sfnt/pngshim.h
@@ -29,14 +29,15 @@
#ifdef FT_CONFIG_OPTION_USE_PNG
FT_LOCAL( FT_Error )
- Load_SBit_Png( FT_Bitmap* map,
+ Load_SBit_Png( FT_GlyphSlot slot,
FT_Int x_offset,
FT_Int y_offset,
FT_Int pix_bits,
TT_SBit_Metrics metrics,
FT_Memory memory,
FT_Byte* data,
- FT_UInt png_len );
+ FT_UInt png_len,
+ FT_Bool populate_map_and_metrics );
#endif
diff --git a/src/sfnt/sfdriver.c b/src/sfnt/sfdriver.c
index a368b8c..e0132c9 100644
--- a/src/sfnt/sfdriver.c
+++ b/src/sfnt/sfdriver.c
@@ -499,8 +499,8 @@
tt_face_load_hmtx,
/* see `ttsbit.h' and `sfnt.h' */
- PUT_EMBEDDED_BITMAPS( tt_face_load_eblc ),
- PUT_EMBEDDED_BITMAPS( tt_face_free_eblc ),
+ PUT_EMBEDDED_BITMAPS( tt_face_load_sbit ),
+ PUT_EMBEDDED_BITMAPS( tt_face_free_sbit ),
PUT_EMBEDDED_BITMAPS( tt_face_set_sbit_strike ),
PUT_EMBEDDED_BITMAPS( tt_face_load_strike_metrics ),
diff --git a/src/sfnt/sfobjs.c b/src/sfnt/sfobjs.c
index f975e71..a31c77c 100644
--- a/src/sfnt/sfobjs.c
+++ b/src/sfnt/sfobjs.c
@@ -27,6 +27,7 @@
#include FT_TRUETYPE_TAGS_H
#include FT_SERVICE_POSTSCRIPT_CMAPS_H
#include FT_SFNT_NAMES_H
+#include FT_GZIP_H
#include "sferrors.h"
#ifdef TT_CONFIG_OPTION_BDF
@@ -347,6 +348,380 @@
}
+#define WRITE_BYTE( p, v ) \
+ do \
+ { \
+ *(p)++ = (v) >> 0; \
+ \
+ } while ( 0 )
+
+#define WRITE_USHORT( p, v ) \
+ do \
+ { \
+ *(p)++ = (v) >> 8; \
+ *(p)++ = (v) >> 0; \
+ \
+ } while ( 0 )
+
+#define WRITE_ULONG( p, v ) \
+ do \
+ { \
+ *(p)++ = (v) >> 24; \
+ *(p)++ = (v) >> 16; \
+ *(p)++ = (v) >> 8; \
+ *(p)++ = (v) >> 0; \
+ \
+ } while ( 0 )
+
+
+ static void
+ sfnt_stream_close( FT_Stream stream )
+ {
+ FT_Memory memory = stream->memory;
+
+
+ FT_FREE( stream->base );
+
+ stream->size = 0;
+ stream->base = 0;
+ stream->close = 0;
+ }
+
+
+ FT_CALLBACK_DEF( int )
+ compare_offsets( const void* a,
+ const void* b )
+ {
+ WOFF_Table table1 = *(WOFF_Table*)a;
+ WOFF_Table table2 = *(WOFF_Table*)b;
+
+ FT_ULong offset1 = table1->Offset;
+ FT_ULong offset2 = table2->Offset;
+
+
+ if ( offset1 > offset2 )
+ return 1;
+ else if ( offset1 < offset2 )
+ return -1;
+ else
+ return 0;
+ }
+
+
+ /* Replace `face->root.stream' with a stream containing the extracted */
+ /* SFNT of a WOFF font. */
+
+ static FT_Error
+ woff_open_font( FT_Stream stream,
+ TT_Face face )
+ {
+ FT_Memory memory = stream->memory;
+ FT_Error error = FT_Err_Ok;
+
+ WOFF_HeaderRec woff;
+ WOFF_Table tables = NULL;
+ WOFF_Table* indices = NULL;
+
+ FT_ULong woff_offset;
+
+ FT_Byte* sfnt = NULL;
+ FT_Stream sfnt_stream = NULL;
+
+ FT_Byte* sfnt_header;
+ FT_ULong sfnt_offset;
+
+ FT_Int nn;
+ FT_ULong old_tag = 0;
+
+ static const FT_Frame_Field woff_header_fields[] =
+ {
+#undef FT_STRUCTURE
+#define FT_STRUCTURE WOFF_HeaderRec
+
+ FT_FRAME_START( 44 ),
+ FT_FRAME_ULONG ( signature ),
+ FT_FRAME_ULONG ( flavor ),
+ FT_FRAME_ULONG ( length ),
+ FT_FRAME_USHORT( num_tables ),
+ FT_FRAME_USHORT( reserved ),
+ FT_FRAME_ULONG ( totalSfntSize ),
+ FT_FRAME_USHORT( majorVersion ),
+ FT_FRAME_USHORT( minorVersion ),
+ FT_FRAME_ULONG ( metaOffset ),
+ FT_FRAME_ULONG ( metaLength ),
+ FT_FRAME_ULONG ( metaOrigLength ),
+ FT_FRAME_ULONG ( privOffset ),
+ FT_FRAME_ULONG ( privLength ),
+ FT_FRAME_END
+ };
+
+
+ FT_ASSERT( stream == face->root.stream );
+ FT_ASSERT( FT_STREAM_POS() == 0 );
+
+ if ( FT_STREAM_READ_FIELDS( woff_header_fields, &woff ) )
+ return error;
+
+ /* Make sure we don't recurse back here or hit TTC code. */
+ if ( woff.flavor == TTAG_wOFF || woff.flavor == TTAG_ttcf )
+ return FT_THROW( Invalid_Table );
+
+ /* Miscellaneous checks. */
+ if ( woff.length != stream->size ||
+ woff.num_tables == 0 ||
+ 44 + woff.num_tables * 20UL >= woff.length ||
+ 12 + woff.num_tables * 16UL >= woff.totalSfntSize ||
+ ( woff.totalSfntSize & 3 ) != 0 ||
+ ( woff.metaOffset == 0 && ( woff.metaLength != 0 ||
+ woff.metaOrigLength != 0 ) ) ||
+ ( woff.metaLength != 0 && woff.metaOrigLength == 0 ) ||
+ ( woff.privOffset == 0 && woff.privLength != 0 ) )
+ return FT_THROW( Invalid_Table );
+
+ if ( FT_ALLOC( sfnt, woff.totalSfntSize ) ||
+ FT_NEW( sfnt_stream ) )
+ goto Exit;
+
+ sfnt_header = sfnt;
+
+ /* Write sfnt header. */
+ {
+ FT_UInt searchRange, entrySelector, rangeShift, x;
+
+
+ x = woff.num_tables;
+ entrySelector = 0;
+ while ( x )
+ {
+ x >>= 1;
+ entrySelector += 1;
+ }
+ entrySelector--;
+
+ searchRange = ( 1 << entrySelector ) * 16;
+ rangeShift = woff.num_tables * 16 - searchRange;
+
+ WRITE_ULONG ( sfnt_header, woff.flavor );
+ WRITE_USHORT( sfnt_header, woff.num_tables );
+ WRITE_USHORT( sfnt_header, searchRange );
+ WRITE_USHORT( sfnt_header, entrySelector );
+ WRITE_USHORT( sfnt_header, rangeShift );
+ }
+
+ /* While the entries in the sfnt header must be sorted by the */
+ /* tag value, the tables themselves are not. We thus have to */
+ /* sort them by offset and check that they don't overlap. */
+
+ if ( FT_NEW_ARRAY( tables, woff.num_tables ) ||
+ FT_NEW_ARRAY( indices, woff.num_tables ) )
+ goto Exit;
+
+ FT_TRACE2(( "\n"
+ " tag offset compLen origLen checksum\n"
+ " -------------------------------------------\n" ));
+
+ if ( FT_FRAME_ENTER( 20L * woff.num_tables ) )
+ goto Exit;
+
+ for ( nn = 0; nn < woff.num_tables; nn++ )
+ {
+ WOFF_Table table = tables + nn;
+
+ table->Tag = FT_GET_TAG4();
+ table->Offset = FT_GET_ULONG();
+ table->CompLength = FT_GET_ULONG();
+ table->OrigLength = FT_GET_ULONG();
+ table->CheckSum = FT_GET_ULONG();
+
+ FT_TRACE2(( " %c%c%c%c %08lx %08lx %08lx %08lx\n",
+ (FT_Char)( table->Tag >> 24 ),
+ (FT_Char)( table->Tag >> 16 ),
+ (FT_Char)( table->Tag >> 8 ),
+ (FT_Char)( table->Tag ),
+ table->Offset,
+ table->CompLength,
+ table->OrigLength,
+ table->CheckSum ));
+
+ if ( table->Tag <= old_tag )
+ {
+ FT_FRAME_EXIT();
+ error = FT_THROW( Invalid_Table );
+ goto Exit;
+ }
+
+ old_tag = table->Tag;
+ indices[nn] = table;
+ }
+
+ FT_FRAME_EXIT();
+
+ /* Sort by offset. */
+
+ ft_qsort( indices,
+ woff.num_tables,
+ sizeof ( WOFF_Table ),
+ compare_offsets );
+
+ /* Check offsets and lengths. */
+
+ woff_offset = 44 + woff.num_tables * 20L;
+ sfnt_offset = 12 + woff.num_tables * 16L;
+
+ for ( nn = 0; nn < woff.num_tables; nn++ )
+ {
+ WOFF_Table table = indices[nn];
+
+
+ if ( table->Offset != woff_offset ||
+ table->Offset + table->CompLength > woff.length ||
+ sfnt_offset + table->OrigLength > woff.totalSfntSize ||
+ table->CompLength > table->OrigLength )
+ {
+ error = FT_THROW( Invalid_Table );
+ goto Exit;
+ }
+
+ table->OrigOffset = sfnt_offset;
+
+ /* The offsets must be multiples of 4. */
+ woff_offset += ( table->CompLength + 3 ) & ~3;
+ sfnt_offset += ( table->OrigLength + 3 ) & ~3;
+ }
+
+ /*
+ * Final checks!
+ *
+ * We don't decode and check the metadata block.
+ * We don't check table checksums either.
+ * But other than those, I think we implement all
+ * `MUST' checks from the spec.
+ */
+
+ if ( woff.metaOffset )
+ {
+ if ( woff.metaOffset != woff_offset ||
+ woff.metaOffset + woff.metaLength > woff.length )
+ {
+ error = FT_THROW( Invalid_Table );
+ goto Exit;
+ }
+
+ /* We have padding only ... */
+ woff_offset += woff.metaLength;
+ }
+
+ if ( woff.privOffset )
+ {
+ /* ... if it isn't the last block. */
+ woff_offset = ( woff_offset + 3 ) & ~3;
+
+ if ( woff.privOffset != woff_offset ||
+ woff.privOffset + woff.privLength > woff.length )
+ {
+ error = FT_THROW( Invalid_Table );
+ goto Exit;
+ }
+
+ /* No padding for the last block. */
+ woff_offset += woff.privLength;
+ }
+
+ if ( sfnt_offset != woff.totalSfntSize ||
+ woff_offset != woff.length )
+ {
+ error = FT_THROW( Invalid_Table );
+ goto Exit;
+ }
+
+ /* Write the tables. */
+
+ for ( nn = 0; nn < woff.num_tables; nn++ )
+ {
+ WOFF_Table table = tables + nn;
+
+
+ /* Write SFNT table entry. */
+ WRITE_ULONG( sfnt_header, table->Tag );
+ WRITE_ULONG( sfnt_header, table->CheckSum );
+ WRITE_ULONG( sfnt_header, table->OrigOffset );
+ WRITE_ULONG( sfnt_header, table->OrigLength );
+
+ /* Write table data. */
+ if ( FT_STREAM_SEEK( table->Offset ) ||
+ FT_FRAME_ENTER( table->CompLength ) )
+ goto Exit;
+
+ if ( table->CompLength == table->OrigLength )
+ {
+ /* Uncompressed data; just copy. */
+ ft_memcpy( sfnt + table->OrigOffset,
+ stream->cursor,
+ table->OrigLength );
+ }
+ else
+ {
+ /* Uncompress with zlib. */
+ FT_ULong output_len = table->OrigLength;
+
+
+ error = FT_Gzip_Uncompress( memory,
+ sfnt + table->OrigOffset, &output_len,
+ stream->cursor, table->CompLength );
+ if ( error )
+ goto Exit;
+ if ( output_len != table->OrigLength )
+ {
+ error = FT_THROW( Invalid_Table );
+ goto Exit;
+ }
+ }
+
+ FT_FRAME_EXIT();
+
+ /* We don't check whether the padding bytes in the WOFF file are */
+ /* actually '\0'. For the output, however, we do set them properly. */
+ sfnt_offset = table->OrigOffset + table->OrigLength;
+ while ( sfnt_offset & 3 )
+ {
+ sfnt[sfnt_offset] = '\0';
+ sfnt_offset++;
+ }
+ }
+
+ /* Ok! Finally ready. Swap out stream and return. */
+ FT_Stream_OpenMemory( sfnt_stream, sfnt, woff.totalSfntSize );
+ sfnt_stream->memory = stream->memory;
+ sfnt_stream->close = sfnt_stream_close;
+
+ FT_Stream_Free(
+ face->root.stream,
+ ( face->root.face_flags & FT_FACE_FLAG_EXTERNAL_STREAM ) != 0 );
+
+ face->root.stream = sfnt_stream;
+
+ face->root.face_flags &= ~FT_FACE_FLAG_EXTERNAL_STREAM;
+
+ Exit:
+ FT_FREE( tables );
+ FT_FREE( indices );
+
+ if ( error )
+ {
+ FT_FREE( sfnt );
+ FT_Stream_Close( sfnt_stream );
+ FT_FREE( sfnt_stream );
+ }
+
+ return error;
+ }
+
+
+#undef WRITE_BYTE
+#undef WRITE_USHORT
+#undef WRITE_ULONG
+
+
/* Fill in face->ttc_header. If the font is not a TTC, it is */
/* synthesized into a TTC with one offset table. */
static FT_Error
@@ -373,11 +748,28 @@
face->ttc_header.version = 0;
face->ttc_header.count = 0;
+ retry:
offset = FT_STREAM_POS();
if ( FT_READ_ULONG( tag ) )
return error;
+ if ( tag == TTAG_wOFF )
+ {
+ FT_TRACE2(( "sfnt_open_font: file is a WOFF; synthesizing SFNT\n" ));
+
+ if ( FT_STREAM_SEEK( offset ) )
+ return error;
+
+ error = woff_open_font( stream, face );
+ if ( error )
+ return error;
+
+ /* Swap out stream and retry! */
+ stream = face->root.stream;
+ goto retry;
+ }
+
if ( tag != 0x00010000UL &&
tag != TTAG_ttcf &&
tag != TTAG_OTTO &&
@@ -480,6 +872,9 @@
if ( error )
return error;
+ /* Stream may have changed in sfnt_open_font. */
+ stream = face->root.stream;
+
FT_TRACE2(( "sfnt_init_face: %08p, %ld\n", face, face_index ));
if ( face_index < 0 )
@@ -504,7 +899,8 @@
#define LOAD_( x ) \
- do { \
+ do \
+ { \
FT_TRACE2(( "`" #x "' " )); \
FT_TRACE3(( "-->\n" )); \
\
@@ -519,7 +915,8 @@
} while ( 0 )
#define LOADM_( x, vertical ) \
- do { \
+ do \
+ { \
FT_TRACE2(( "`%s" #x "' ", \
vertical ? "vertical " : "" )); \
FT_TRACE3(( "-->\n" )); \
@@ -535,7 +932,8 @@
} while ( 0 )
#define GET_NAME( id, field ) \
- do { \
+ do \
+ { \
error = tt_face_get_name( face, TT_NAME_ID_ ## id, field ); \
if ( error ) \
goto Exit; \
@@ -555,6 +953,7 @@
#endif
FT_Bool has_outline;
FT_Bool is_apple_sbit;
+ FT_Bool is_apple_sbix;
FT_Bool ignore_preferred_family = FALSE;
FT_Bool ignore_preferred_subfamily = FALSE;
@@ -608,6 +1007,14 @@
#endif
is_apple_sbit = 0;
+ is_apple_sbix = !face->goto_table( face, TTAG_sbix, stream, 0 );
+
+ /* Apple 'sbix' color bitmaps are rendered scaled and then the 'glyf'
+ * outline rendered on top. We don't support that yet, so just ignore
+ * the 'glyf' outline and advertise it as a bitmap-only font. */
+ if ( is_apple_sbix )
+ has_outline = FALSE;
+
/* if this font doesn't contain outlines, we try to load */
/* a `bhed' table */
@@ -619,7 +1026,7 @@
/* load the font header (`head' table) if this isn't an Apple */
/* sbit font file */
- if ( !is_apple_sbit )
+ if ( !is_apple_sbit || is_apple_sbix )
{
LOAD_( head );
if ( error )
@@ -803,6 +1210,10 @@
/* */
/* Compute face flags. */
/* */
+ if ( face->sbit_table_type == TT_SBIT_TABLE_TYPE_CBLC ||
+ face->sbit_table_type == TT_SBIT_TABLE_TYPE_SBIX )
+ flags |= FT_FACE_FLAG_COLOR; /* color glyphs */
+
if ( has_outline == TRUE )
flags |= FT_FACE_FLAG_SCALABLE; /* scalable outlines */
@@ -931,7 +1342,7 @@
if ( em_size == 0 || face->os2.version == 0xFFFFU )
{
- avgwidth = 0;
+ avgwidth = 1;
em_size = 1;
}
diff --git a/src/sfnt/ttcmap.c b/src/sfnt/ttcmap.c
index 1507202..9b7856b 100644
--- a/src/sfnt/ttcmap.c
+++ b/src/sfnt/ttcmap.c
@@ -320,9 +320,8 @@
/* parse sub-headers */
for ( n = 0; n <= max_subs; n++ )
{
- FT_UInt first_code, code_count, offset;
- FT_Int delta;
- FT_Byte* ids;
+ FT_UInt first_code, code_count, offset;
+ FT_Int delta;
first_code = TT_NEXT_USHORT( p );
@@ -344,6 +343,9 @@
/* check offset */
if ( offset != 0 )
{
+ FT_Byte* ids;
+
+
ids = p - 2 + offset;
if ( ids < glyph_ids || ids + code_count*2 > table + length )
FT_INVALID_OFFSET;
@@ -3208,7 +3210,6 @@
{
FT_Byte *p = tt_cmap14_find_variant( cmap->data + 6,
variantSelector );
- FT_UInt32 *ret;
FT_Int i;
FT_ULong defOff;
FT_ULong nondefOff;
@@ -3242,6 +3243,8 @@
FT_Byte* dp;
FT_UInt di, ni, k;
+ FT_UInt32 *ret;
+
p = cmap->data + nondefOff;
dp = cmap->data + defOff;
diff --git a/src/sfnt/ttkern.c b/src/sfnt/ttkern.c
index 60ee546..32c4008 100644
--- a/src/sfnt/ttkern.c
+++ b/src/sfnt/ttkern.c
@@ -5,7 +5,7 @@
/* Load the basic TrueType kerning table. This doesn't handle */
/* kerning data within the GPOS table at the moment. */
/* */
-/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009, 2010 by */
+/* Copyright 1996-2007, 2009, 2010, 2013 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -183,7 +183,7 @@
FT_UInt right_glyph )
{
FT_Int result = 0;
- FT_UInt count, mask = 1;
+ FT_UInt count, mask;
FT_Byte* p = face->kern_table;
FT_Byte* p_limit = p + face->kern_table_size;
@@ -196,7 +196,7 @@
count--, mask <<= 1 )
{
FT_Byte* base = p;
- FT_Byte* next = base;
+ FT_Byte* next;
FT_UInt version = FT_NEXT_USHORT( p );
FT_UInt length = FT_NEXT_USHORT( p );
FT_UInt coverage = FT_NEXT_USHORT( p );
diff --git a/src/sfnt/ttload.c b/src/sfnt/ttload.c
index fbe70f7..0a3cd29 100644
--- a/src/sfnt/ttload.c
+++ b/src/sfnt/ttload.c
@@ -236,7 +236,8 @@
*/
if ( table.Length < 0x36 )
{
- FT_TRACE2(( "check_table_dir: `head' table too small\n" ));
+ FT_TRACE2(( "check_table_dir:"
+ " `head' or `bhed' table too small\n" ));
error = FT_THROW( Table_Missing );
goto Exit;
}
@@ -246,12 +247,8 @@
goto Exit;
if ( magic != 0x5F0F3CF5UL )
- {
FT_TRACE2(( "check_table_dir:"
- " no magic number found in `head' table\n"));
- error = FT_THROW( Table_Missing );
- goto Exit;
- }
+ " invalid magic number in `head' or `bhed' table\n"));
if ( FT_STREAM_SEEK( offset + ( nn + 1 ) * 16 ) )
goto Exit;
@@ -394,8 +391,8 @@
{
entry->Tag = FT_GET_TAG4();
entry->CheckSum = FT_GET_ULONG();
- entry->Offset = FT_GET_LONG();
- entry->Length = FT_GET_LONG();
+ entry->Offset = FT_GET_ULONG();
+ entry->Length = FT_GET_ULONG();
/* ignore invalid tables */
if ( entry->Offset + entry->Length > stream->size )
@@ -1006,7 +1003,8 @@
FT_FRAME_END
};
- static const FT_Frame_Field os2_fields_extra[] =
+ /* `OS/2' version 1 and newer */
+ static const FT_Frame_Field os2_fields_extra1[] =
{
FT_FRAME_START( 8 ),
FT_FRAME_ULONG( ulCodePageRange1 ),
@@ -1014,6 +1012,7 @@
FT_FRAME_END
};
+ /* `OS/2' version 2 and newer */
static const FT_Frame_Field os2_fields_extra2[] =
{
FT_FRAME_START( 10 ),
@@ -1025,6 +1024,15 @@
FT_FRAME_END
};
+ /* `OS/2' version 5 and newer */
+ static const FT_Frame_Field os2_fields_extra5[] =
+ {
+ FT_FRAME_START( 4 ),
+ FT_FRAME_USHORT( usLowerOpticalPointSize ),
+ FT_FRAME_USHORT( usUpperOpticalPointSize ),
+ FT_FRAME_END
+ };
+
/* We now support old Mac fonts where the OS/2 table doesn't */
/* exist. Simply put, we set the `version' field to 0xFFFF */
@@ -1038,18 +1046,20 @@
if ( FT_STREAM_READ_FIELDS( os2_fields, os2 ) )
goto Exit;
- os2->ulCodePageRange1 = 0;
- os2->ulCodePageRange2 = 0;
- os2->sxHeight = 0;
- os2->sCapHeight = 0;
- os2->usDefaultChar = 0;
- os2->usBreakChar = 0;
- os2->usMaxContext = 0;
+ os2->ulCodePageRange1 = 0;
+ os2->ulCodePageRange2 = 0;
+ os2->sxHeight = 0;
+ os2->sCapHeight = 0;
+ os2->usDefaultChar = 0;
+ os2->usBreakChar = 0;
+ os2->usMaxContext = 0;
+ os2->usLowerOpticalPointSize = 0;
+ os2->usUpperOpticalPointSize = 0xFFFF;
if ( os2->version >= 0x0001 )
{
/* only version 1 tables */
- if ( FT_STREAM_READ_FIELDS( os2_fields_extra, os2 ) )
+ if ( FT_STREAM_READ_FIELDS( os2_fields_extra1, os2 ) )
goto Exit;
if ( os2->version >= 0x0002 )
@@ -1057,6 +1067,13 @@
/* only version 2 tables */
if ( FT_STREAM_READ_FIELDS( os2_fields_extra2, os2 ) )
goto Exit;
+
+ if ( os2->version >= 0x0005 )
+ {
+ /* only version 5 tables */
+ if ( FT_STREAM_READ_FIELDS( os2_fields_extra5, os2 ) )
+ goto Exit;
+ }
}
}
@@ -1164,6 +1181,7 @@
FT_FRAME_USHORT( Style ),
FT_FRAME_USHORT( TypeFamily ),
FT_FRAME_USHORT( CapHeight ),
+ FT_FRAME_USHORT( SymbolSet ),
FT_FRAME_BYTES ( TypeFace, 16 ),
FT_FRAME_BYTES ( CharacterComplement, 8 ),
FT_FRAME_BYTES ( FileName, 6 ),
diff --git a/src/sfnt/ttmtx.c b/src/sfnt/ttmtx.c
index 371a9ed..a8cc63a 100644
--- a/src/sfnt/ttmtx.c
+++ b/src/sfnt/ttmtx.c
@@ -183,20 +183,23 @@
/* tt_face_get_metrics */
/* */
/* <Description> */
- /* Returns the horizontal or vertical metrics in font units for a */
- /* given glyph. The metrics are the left side bearing (resp. top */
- /* side bearing) and advance width (resp. advance height). */
+ /* Return the horizontal or vertical metrics in font units for a */
+ /* given glyph. The values are the left side bearing (top side */
+ /* bearing for vertical metrics) and advance width (advance height */
+ /* for vertical metrics). */
/* */
/* <Input> */
- /* header :: A pointer to either the horizontal or vertical metrics */
- /* structure. */
+ /* face :: A pointer to the TrueType face structure. */
/* */
- /* idx :: The glyph index. */
+ /* vertical :: If set to TRUE, get vertical metrics. */
+ /* */
+ /* gindex :: The glyph index. */
/* */
/* <Output> */
- /* bearing :: The bearing, either left side or top side. */
+ /* abearing :: The bearing, either left side or top side. */
/* */
- /* advance :: The advance width resp. advance height. */
+ /* aadvance :: The advance width or advance height, depending on */
+ /* the `vertical' flag. */
/* */
FT_LOCAL_DEF( FT_Error )
tt_face_get_metrics( TT_Face face,
diff --git a/src/sfnt/ttsbit.c b/src/sfnt/ttsbit.c
index cd3e5a4..7469ff1 100644
--- a/src/sfnt/ttsbit.c
+++ b/src/sfnt/ttsbit.c
@@ -28,6 +28,7 @@
#include "sferrors.h"
+#include "ttmtx.h"
#include "pngshim.h"
@@ -42,25 +43,36 @@
FT_LOCAL_DEF( FT_Error )
- tt_face_load_eblc( TT_Face face,
+ tt_face_load_sbit( TT_Face face,
FT_Stream stream )
{
- FT_Error error = FT_Err_Ok;
- FT_Fixed version;
- FT_ULong num_strikes, table_size;
- FT_Byte* p;
- FT_Byte* p_limit;
- FT_UInt count;
+ FT_Error error;
+ FT_ULong table_size;
+ face->sbit_table = NULL;
+ face->sbit_table_size = 0;
+ face->sbit_table_type = TT_SBIT_TABLE_TYPE_NONE;
face->sbit_num_strikes = 0;
- /* this table is optional */
error = face->goto_table( face, TTAG_CBLC, stream, &table_size );
- if ( error )
+ if ( !error )
+ face->sbit_table_type = TT_SBIT_TABLE_TYPE_CBLC;
+ else
+ {
error = face->goto_table( face, TTAG_EBLC, stream, &table_size );
+ if ( error )
+ error = face->goto_table( face, TTAG_bloc, stream, &table_size );
+ if ( !error )
+ face->sbit_table_type = TT_SBIT_TABLE_TYPE_EBLC;
+ }
+
if ( error )
- error = face->goto_table( face, TTAG_bloc, stream, &table_size );
+ {
+ error = face->goto_table( face, TTAG_sbix, stream, &table_size );
+ if ( !error )
+ face->sbit_table_type = TT_SBIT_TABLE_TYPE_SBIX;
+ }
if ( error )
goto Exit;
@@ -71,53 +83,130 @@
goto Exit;
}
- if ( FT_FRAME_EXTRACT( table_size, face->sbit_table ) )
- goto Exit;
-
- face->sbit_table_size = table_size;
-
- p = face->sbit_table;
- p_limit = p + table_size;
-
- version = FT_NEXT_ULONG( p );
- num_strikes = FT_NEXT_ULONG( p );
-
- if ( version != 0x00020000UL || num_strikes >= 0x10000UL )
+ switch ( (FT_UInt)face->sbit_table_type )
{
- FT_ERROR(( "tt_face_load_sbit_strikes: invalid table version\n" ));
- error = FT_THROW( Invalid_File_Format );
- goto Fail;
+ case TT_SBIT_TABLE_TYPE_EBLC:
+ case TT_SBIT_TABLE_TYPE_CBLC:
+ {
+ FT_Byte* p;
+ FT_Fixed version;
+ FT_ULong num_strikes;
+ FT_UInt count;
+
+
+ if ( FT_FRAME_EXTRACT( table_size, face->sbit_table ) )
+ goto Exit;
+
+ face->sbit_table_size = table_size;
+
+ p = face->sbit_table;
+
+ version = FT_NEXT_ULONG( p );
+ num_strikes = FT_NEXT_ULONG( p );
+
+ if ( ( version & 0xFFFF0000UL ) != 0x00020000UL )
+ {
+ error = FT_THROW( Unknown_File_Format );
+ goto Exit;
+ }
+
+ if ( num_strikes >= 0x10000UL )
+ {
+ error = FT_THROW( Invalid_File_Format );
+ goto Exit;
+ }
+
+ /*
+ * Count the number of strikes available in the table. We are a bit
+ * paranoid there and don't trust the data.
+ */
+ count = (FT_UInt)num_strikes;
+ if ( 8 + 48UL * count > table_size )
+ count = (FT_UInt)( ( table_size - 8 ) / 48 );
+
+ face->sbit_num_strikes = count;
+ }
+ break;
+
+ case TT_SBIT_TABLE_TYPE_SBIX:
+ {
+ FT_UShort version;
+ FT_UShort flags;
+ FT_ULong num_strikes;
+ FT_UInt count;
+
+
+ if ( FT_FRAME_ENTER( 8 ) )
+ goto Exit;
+
+ version = FT_GET_USHORT();
+ flags = FT_GET_USHORT();
+ num_strikes = FT_GET_ULONG();
+
+ FT_FRAME_EXIT();
+
+ if ( version < 1 )
+ {
+ error = FT_THROW( Unknown_File_Format );
+ goto Exit;
+ }
+ if ( flags != 0x0001 || num_strikes >= 0x10000UL )
+ {
+ error = FT_THROW( Invalid_File_Format );
+ goto Exit;
+ }
+
+ /*
+ * Count the number of strikes available in the table. We are a bit
+ * paranoid there and don't trust the data.
+ */
+ count = (FT_UInt)num_strikes;
+ if ( 8 + 4UL * count > table_size )
+ count = (FT_UInt)( ( table_size - 8 ) / 4 );
+
+ if ( FT_STREAM_SEEK( FT_STREAM_POS() - 8 ) )
+ goto Exit;
+
+ face->sbit_table_size = 8 + count * 4;
+ if ( FT_FRAME_EXTRACT( face->sbit_table_size, face->sbit_table ) )
+ goto Exit;
+
+ face->sbit_num_strikes = count;
+ }
+ break;
+
+ default:
+ error = FT_THROW( Unknown_File_Format );
+ break;
}
- /*
- * Count the number of strikes available in the table. We are a bit
- * paranoid there and don't trust the data.
- */
- count = (FT_UInt)num_strikes;
- if ( 8 + 48UL * count > table_size )
- count = (FT_UInt)( ( p_limit - p ) / 48 );
+ if ( !error )
+ FT_TRACE3(( "sbit_num_strikes: %u\n", face->sbit_num_strikes ));
- face->sbit_num_strikes = count;
+ return FT_Err_Ok;
- FT_TRACE3(( "sbit_num_strikes: %u\n", count ));
Exit:
- return error;
+ if ( error )
+ {
+ if ( face->sbit_table )
+ FT_FRAME_RELEASE( face->sbit_table );
+ face->sbit_table_size = 0;
+ face->sbit_table_type = TT_SBIT_TABLE_TYPE_NONE;
+ }
- Fail:
- FT_FRAME_RELEASE( face->sbit_table );
- face->sbit_table_size = 0;
- goto Exit;
+ return error;
}
FT_LOCAL_DEF( void )
- tt_face_free_eblc( TT_Face face )
+ tt_face_free_sbit( TT_Face face )
{
FT_Stream stream = face->root.stream;
FT_FRAME_RELEASE( face->sbit_table );
face->sbit_table_size = 0;
+ face->sbit_table_type = TT_SBIT_TABLE_TYPE_NONE;
face->sbit_num_strikes = 0;
}
@@ -136,28 +225,85 @@
FT_ULong strike_index,
FT_Size_Metrics* metrics )
{
- FT_Byte* strike;
-
-
if ( strike_index >= (FT_ULong)face->sbit_num_strikes )
return FT_THROW( Invalid_Argument );
- strike = face->sbit_table + 8 + strike_index * 48;
+ switch ( (FT_UInt)face->sbit_table_type )
+ {
+ case TT_SBIT_TABLE_TYPE_EBLC:
+ case TT_SBIT_TABLE_TYPE_CBLC:
+ {
+ FT_Byte* strike;
- metrics->x_ppem = (FT_UShort)strike[44];
- metrics->y_ppem = (FT_UShort)strike[45];
- metrics->ascender = (FT_Char)strike[16] << 6; /* hori.ascender */
- metrics->descender = (FT_Char)strike[17] << 6; /* hori.descender */
- metrics->height = metrics->ascender - metrics->descender;
+ strike = face->sbit_table + 8 + strike_index * 48;
- /* XXX: Is this correct? */
- metrics->max_advance = ( (FT_Char)strike[22] + /* min_origin_SB */
- strike[18] + /* max_width */
- (FT_Char)strike[23] /* min_advance_SB */
- ) << 6;
+ metrics->x_ppem = (FT_UShort)strike[44];
+ metrics->y_ppem = (FT_UShort)strike[45];
- return FT_Err_Ok;
+ metrics->ascender = (FT_Char)strike[16] << 6; /* hori.ascender */
+ metrics->descender = (FT_Char)strike[17] << 6; /* hori.descender */
+ metrics->height = metrics->ascender - metrics->descender;
+
+ /* Is this correct? */
+ metrics->max_advance = ( (FT_Char)strike[22] + /* min_origin_SB */
+ strike[18] + /* max_width */
+ (FT_Char)strike[23] /* min_advance_SB */
+ ) << 6;
+ return FT_Err_Ok;
+ }
+
+ case TT_SBIT_TABLE_TYPE_SBIX:
+ {
+ FT_Stream stream = face->root.stream;
+ FT_UInt offset, ppem, resolution, upem;
+ TT_HoriHeader *hori;
+ FT_ULong table_size;
+
+ FT_Error error;
+ FT_Byte* p;
+
+
+ p = face->sbit_table + 8 + 4 * strike_index;
+ offset = FT_NEXT_ULONG( p );
+
+ error = face->goto_table( face, TTAG_sbix, stream, &table_size );
+ if ( error )
+ return error;
+
+ if ( offset + 4 > table_size )
+ return FT_THROW( Invalid_File_Format );
+
+ if ( FT_STREAM_SEEK( FT_STREAM_POS() + offset ) ||
+ FT_FRAME_ENTER( 4 ) )
+ return error;
+
+ ppem = FT_GET_USHORT();
+ resolution = FT_GET_USHORT();
+
+ FT_UNUSED( resolution ); /* What to do with this? */
+
+ FT_FRAME_EXIT();
+
+ upem = face->header.Units_Per_EM;
+ hori = &face->horizontal;
+
+ metrics->x_ppem = ppem;
+ metrics->y_ppem = ppem;
+
+ metrics->ascender = ppem * hori->Ascender * 64 / upem;
+ metrics->descender = ppem * hori->Descender * 64 / upem;
+ metrics->height = ppem * ( hori->Ascender -
+ hori->Descender +
+ hori->Line_Gap ) * 64 / upem;
+ metrics->max_advance = ppem * hori->advance_Width_Max * 64 / upem;
+
+ return error;
+ }
+
+ default:
+ return FT_THROW( Unknown_File_Format );
+ }
}
@@ -253,8 +399,7 @@
static FT_Error
- tt_sbit_decoder_alloc_bitmap( TT_SBitDecoder decoder,
- FT_UInt load_flags )
+ tt_sbit_decoder_alloc_bitmap( TT_SBitDecoder decoder )
{
FT_Error error = FT_Err_Ok;
FT_UInt width, height;
@@ -301,18 +446,9 @@
break;
case 32:
- if ( load_flags & FT_LOAD_COLOR )
- {
- map->pixel_mode = FT_PIXEL_MODE_BGRA;
- map->pitch = map->width * 4;
- map->num_grays = 256;
- }
- else
- {
- map->pixel_mode = FT_PIXEL_MODE_GRAY;
- map->pitch = map->width;
- map->num_grays = 256;
- }
+ map->pixel_mode = FT_PIXEL_MODE_BGRA;
+ map->pitch = map->width * 4;
+ map->num_grays = 256;
break;
default:
@@ -382,13 +518,11 @@
/* forward declaration */
static FT_Error
tt_sbit_decoder_load_image( TT_SBitDecoder decoder,
- FT_UInt load_flags,
FT_UInt glyph_index,
FT_Int x_pos,
FT_Int y_pos );
typedef FT_Error (*TT_SBitDecoder_LoadFunc)( TT_SBitDecoder decoder,
- FT_UInt load_flags,
FT_Byte* p,
FT_Byte* plimit,
FT_Int x_pos,
@@ -397,7 +531,6 @@
static FT_Error
tt_sbit_decoder_load_byte_aligned( TT_SBitDecoder decoder,
- FT_UInt load_flags,
FT_Byte* p,
FT_Byte* limit,
FT_Int x_pos,
@@ -408,8 +541,6 @@
FT_Int bit_height, bit_width, pitch, width, height, line_bits, h;
FT_Bitmap* bitmap;
- FT_UNUSED( load_flags );
-
/* check that we can write the glyph into the bitmap */
bitmap = decoder->bitmap;
@@ -538,7 +669,6 @@
static FT_Error
tt_sbit_decoder_load_bit_aligned( TT_SBitDecoder decoder,
- FT_UInt load_flags,
FT_Byte* p,
FT_Byte* limit,
FT_Int x_pos,
@@ -550,8 +680,6 @@
FT_Bitmap* bitmap;
FT_UShort rval;
- FT_UNUSED( load_flags );
-
/* check that we can write the glyph into the bitmap */
bitmap = decoder->bitmap;
@@ -664,7 +792,6 @@
static FT_Error
tt_sbit_decoder_load_compound( TT_SBitDecoder decoder,
- FT_UInt load_flags,
FT_Byte* p,
FT_Byte* limit,
FT_Int x_pos,
@@ -702,7 +829,7 @@
/* NB: a recursive call */
- error = tt_sbit_decoder_load_image( decoder, load_flags, gindex,
+ error = tt_sbit_decoder_load_image( decoder, gindex,
x_pos + dx, y_pos + dy );
if ( error )
break;
@@ -732,7 +859,6 @@
static FT_Error
tt_sbit_decoder_load_png( TT_SBitDecoder decoder,
- FT_UInt load_flags,
FT_Byte* p,
FT_Byte* limit,
FT_Int x_pos,
@@ -741,8 +867,6 @@
FT_Error error = FT_Err_Ok;
FT_ULong png_len;
- FT_UNUSED( load_flags );
-
if ( limit - p < 4 )
{
@@ -759,14 +883,15 @@
goto Exit;
}
- error = Load_SBit_Png( decoder->bitmap,
+ error = Load_SBit_Png( decoder->face->root.glyph,
x_pos,
y_pos,
decoder->bit_depth,
decoder->metrics,
decoder->stream->memory,
p,
- png_len );
+ png_len,
+ FALSE );
Exit:
if ( !error )
@@ -779,7 +904,6 @@
static FT_Error
tt_sbit_decoder_load_bitmap( TT_SBitDecoder decoder,
- FT_UInt load_flags,
FT_UInt glyph_format,
FT_ULong glyph_start,
FT_ULong glyph_size,
@@ -845,7 +969,32 @@
case 2:
case 5:
case 7:
- loader = tt_sbit_decoder_load_bit_aligned;
+ {
+ /* Don't trust `glyph_format'. For example, Apple's main Korean */
+ /* system font, `AppleMyungJo.ttf' (version 7.0d2e6), uses glyph */
+ /* format 7, but the data is format 6. We check whether we have */
+ /* an excessive number of bytes in the image: If it is equal to */
+ /* the value for a byte-aligned glyph, use the other loading */
+ /* routine. */
+ /* */
+ /* Note that for some (width,height) combinations, where the */
+ /* width is not a multiple of 8, the sizes for bit- and */
+ /* byte-aligned data are equal, for example (7,7) or (15,6). We */
+ /* then prefer what `glyph_format' specifies. */
+
+ FT_UInt width = decoder->metrics->width;
+ FT_UInt height = decoder->metrics->height;
+
+ FT_UInt bit_size = ( width * height + 7 ) >> 3;
+ FT_UInt byte_size = height * ( ( width + 7 ) >> 3 );
+
+
+ if ( bit_size < byte_size &&
+ byte_size == (FT_UInt)( p_limit - p ) )
+ loader = tt_sbit_decoder_load_byte_aligned;
+ else
+ loader = tt_sbit_decoder_load_bit_aligned;
+ }
break;
case 8:
@@ -859,13 +1008,15 @@
loader = tt_sbit_decoder_load_compound;
break;
-#ifdef FT_CONFIG_OPTION_USE_PNG
case 17: /* small metrics, PNG image data */
case 18: /* big metrics, PNG image data */
case 19: /* metrics in EBLC, PNG image data */
+#ifdef FT_CONFIG_OPTION_USE_PNG
loader = tt_sbit_decoder_load_png;
- break;
+#else
+ error = FT_THROW( Unimplemented_Feature );
#endif /* FT_CONFIG_OPTION_USE_PNG */
+ break;
default:
error = FT_THROW( Invalid_Table );
@@ -874,64 +1025,12 @@
if ( !decoder->bitmap_allocated )
{
- error = tt_sbit_decoder_alloc_bitmap( decoder, load_flags );
+ error = tt_sbit_decoder_alloc_bitmap( decoder );
if ( error )
goto Fail;
}
- if ( decoder->bit_depth == 32 &&
- decoder->bitmap->pixel_mode != FT_PIXEL_MODE_BGRA )
- {
- /* Flatten color bitmaps if color was not requested. */
-
- FT_Library library = decoder->face->root.glyph->library;
- FT_Memory memory = decoder->stream->memory;
-
- FT_Bitmap color, *orig;
-
-
- if ( decoder->bitmap->pixel_mode != FT_PIXEL_MODE_GRAY ||
- x_pos != 0 || y_pos != 0 )
- {
- /* Shouldn't happen. */
- error = FT_THROW( Invalid_Table );
- goto Fail;
- }
-
- FT_Bitmap_New( &color );
-
- color.rows = decoder->bitmap->rows;
- color.width = decoder->bitmap->width;
- color.pitch = color.width * 4;
- color.pixel_mode = FT_PIXEL_MODE_BGRA;
-
- if ( FT_ALLOC( color.buffer, color.rows * color.pitch ) )
- goto Fail;
-
- orig = decoder->bitmap;
- decoder->bitmap = &color;
-
- error = loader( decoder, load_flags, p, p_limit, x_pos, y_pos );
-
- decoder->bitmap = orig;
-
- /* explicitly test against FT_Err_Ok to avoid compiler warnings */
- /* (we do an assignment within a conditional) */
- if ( error ||
- ( error = FT_Bitmap_Convert( library,
- &color,
- decoder->bitmap,
- 1 ) ) != FT_Err_Ok )
- {
- FT_Bitmap_Done( library, &color );
- goto Fail;
- }
-
- FT_Bitmap_Done( library, &color );
- }
-
- else
- error = loader( decoder, load_flags, p, p_limit, x_pos, y_pos );
+ error = loader( decoder, p, p_limit, x_pos, y_pos );
}
Fail:
@@ -944,7 +1043,6 @@
static FT_Error
tt_sbit_decoder_load_image( TT_SBitDecoder decoder,
- FT_UInt load_flags,
FT_UInt glyph_index,
FT_Int x_pos,
FT_Int y_pos )
@@ -993,17 +1091,15 @@
switch ( index_format )
{
case 1: /* 4-byte offsets relative to `image_offset' */
- {
- p += 4 * ( glyph_index - start );
- if ( p + 8 > p_limit )
- goto NoBitmap;
+ p += 4 * ( glyph_index - start );
+ if ( p + 8 > p_limit )
+ goto NoBitmap;
- image_start = FT_NEXT_ULONG( p );
- image_end = FT_NEXT_ULONG( p );
+ image_start = FT_NEXT_ULONG( p );
+ image_end = FT_NEXT_ULONG( p );
- if ( image_start == image_end ) /* missing glyph */
- goto NoBitmap;
- }
+ if ( image_start == image_end ) /* missing glyph */
+ goto NoBitmap;
break;
case 2: /* big metrics, constant image size */
@@ -1025,17 +1121,15 @@
break;
case 3: /* 2-byte offsets relative to 'image_offset' */
- {
- p += 2 * ( glyph_index - start );
- if ( p + 4 > p_limit )
- goto NoBitmap;
+ p += 2 * ( glyph_index - start );
+ if ( p + 4 > p_limit )
+ goto NoBitmap;
- image_start = FT_NEXT_USHORT( p );
- image_end = FT_NEXT_USHORT( p );
+ image_start = FT_NEXT_USHORT( p );
+ image_end = FT_NEXT_USHORT( p );
- if ( image_start == image_end ) /* missing glyph */
- goto NoBitmap;
- }
+ if ( image_start == image_end ) /* missing glyph */
+ goto NoBitmap;
break;
case 4: /* sparse glyph array with (glyph,offset) pairs */
@@ -1124,7 +1218,6 @@
image_format, glyph_index ));
return tt_sbit_decoder_load_bitmap( decoder,
- load_flags,
image_format,
image_start,
image_end,
@@ -1142,6 +1235,129 @@
}
+ static FT_Error
+ tt_face_load_sbix_image( TT_Face face,
+ FT_ULong strike_index,
+ FT_UInt glyph_index,
+ FT_Stream stream,
+ FT_Bitmap *map,
+ TT_SBit_MetricsRec *metrics )
+ {
+ FT_UInt sbix_pos, strike_offset, glyph_start, glyph_end;
+ FT_ULong table_size, data_size;
+ FT_Int originOffsetX, originOffsetY;
+ FT_Tag graphicType;
+ FT_Int recurse_depth = 0;
+
+ FT_Error error;
+ FT_Byte* p;
+
+ FT_UNUSED( map );
+
+
+ metrics->width = 0;
+ metrics->height = 0;
+
+ p = face->sbit_table + 8 + 4 * strike_index;
+ strike_offset = FT_NEXT_ULONG( p );
+
+ error = face->goto_table( face, TTAG_sbix, stream, &table_size );
+ if ( error )
+ return error;
+ sbix_pos = FT_STREAM_POS();
+
+ retry:
+ if ( glyph_index > (FT_UInt)face->root.num_glyphs )
+ return FT_THROW( Invalid_Argument );
+
+ if ( strike_offset >= table_size ||
+ table_size - strike_offset < 4 + glyph_index * 4 + 8 )
+ return FT_THROW( Invalid_File_Format );
+
+ if ( FT_STREAM_SEEK( sbix_pos + strike_offset + 4 + glyph_index * 4 ) ||
+ FT_FRAME_ENTER( 8 ) )
+ return error;
+
+ glyph_start = FT_GET_ULONG();
+ glyph_end = FT_GET_ULONG();
+
+ FT_FRAME_EXIT();
+
+ if ( glyph_start == glyph_end )
+ return FT_THROW( Invalid_Argument );
+ if ( glyph_start > glyph_end ||
+ glyph_end - glyph_start < 8 ||
+ table_size - strike_offset < glyph_end )
+ return FT_THROW( Invalid_File_Format );
+
+ if ( FT_STREAM_SEEK( sbix_pos + strike_offset + glyph_start ) ||
+ FT_FRAME_ENTER( glyph_end - glyph_start ) )
+ return error;
+
+ originOffsetX = FT_GET_SHORT();
+ originOffsetY = FT_GET_SHORT();
+
+ graphicType = FT_GET_TAG4();
+ data_size = glyph_end - glyph_start - 8;
+
+ switch ( graphicType )
+ {
+ case FT_MAKE_TAG( 'd', 'u', 'p', 'e' ):
+ if ( recurse_depth < 4 )
+ {
+ glyph_index = FT_GET_USHORT();
+ FT_FRAME_EXIT();
+ recurse_depth++;
+ goto retry;
+ }
+ error = FT_THROW( Invalid_File_Format );
+ break;
+
+ case FT_MAKE_TAG( 'p', 'n', 'g', ' ' ):
+#ifdef FT_CONFIG_OPTION_USE_PNG
+ error = Load_SBit_Png( face->root.glyph,
+ 0,
+ 0,
+ 32,
+ metrics,
+ stream->memory,
+ stream->cursor,
+ data_size,
+ TRUE );
+#else
+ error = FT_THROW( Unimplemented_Feature );
+#endif
+ break;
+
+ case FT_MAKE_TAG( 'j', 'p', 'g', ' ' ):
+ case FT_MAKE_TAG( 't', 'i', 'f', 'f' ):
+ error = FT_THROW( Unknown_File_Format );
+ break;
+
+ default:
+ error = FT_THROW( Unimplemented_Feature );
+ break;
+ }
+
+ FT_FRAME_EXIT();
+
+ if ( !error )
+ {
+ FT_Short abearing;
+ FT_UShort aadvance;
+
+
+ tt_face_get_metrics( face, FALSE, glyph_index, &abearing, &aadvance );
+
+ metrics->horiBearingX = originOffsetX;
+ metrics->horiBearingY = -originOffsetY + metrics->height;
+ metrics->horiAdvance = aadvance * face->root.size->metrics.x_ppem /
+ face->header.Units_Per_EM;
+ }
+
+ return error;
+ }
+
FT_LOCAL( FT_Error )
tt_face_load_sbit_image( TT_Face face,
FT_ULong strike_index,
@@ -1151,23 +1367,67 @@
FT_Bitmap *map,
TT_SBit_MetricsRec *metrics )
{
- TT_SBitDecoderRec decoder[1];
- FT_Error error;
-
- FT_UNUSED( load_flags );
- FT_UNUSED( stream );
- FT_UNUSED( map );
+ FT_Error error = FT_Err_Ok;
- error = tt_sbit_decoder_init( decoder, face, strike_index, metrics );
- if ( !error )
+ switch ( (FT_UInt)face->sbit_table_type )
{
- error = tt_sbit_decoder_load_image( decoder,
- load_flags,
- glyph_index,
- 0,
- 0 );
- tt_sbit_decoder_done( decoder );
+ case TT_SBIT_TABLE_TYPE_EBLC:
+ case TT_SBIT_TABLE_TYPE_CBLC:
+ {
+ TT_SBitDecoderRec decoder[1];
+
+
+ error = tt_sbit_decoder_init( decoder, face, strike_index, metrics );
+ if ( !error )
+ {
+ error = tt_sbit_decoder_load_image( decoder,
+ glyph_index,
+ 0,
+ 0 );
+ tt_sbit_decoder_done( decoder );
+ }
+ }
+ break;
+
+ case TT_SBIT_TABLE_TYPE_SBIX:
+ error = tt_face_load_sbix_image( face,
+ strike_index,
+ glyph_index,
+ stream,
+ map,
+ metrics );
+ break;
+
+ default:
+ error = FT_THROW( Unknown_File_Format );
+ break;
+ }
+
+ /* Flatten color bitmaps if color was not requested. */
+ if ( !error &&
+ !( load_flags & FT_LOAD_COLOR ) &&
+ map->pixel_mode == FT_PIXEL_MODE_BGRA )
+ {
+ FT_Bitmap new_map;
+ FT_Library library = face->root.glyph->library;
+
+
+ FT_Bitmap_New( &new_map );
+
+ /* Convert to 8bit grayscale. */
+ error = FT_Bitmap_Convert( library, map, &new_map, 1 );
+ if ( error )
+ FT_Bitmap_Done( library, &new_map );
+ else
+ {
+ map->pixel_mode = new_map.pixel_mode;
+ map->pitch = new_map.pitch;
+ map->num_grays = new_map.num_grays;
+
+ ft_glyphslot_set_bitmap( face->root.glyph, new_map.buffer );
+ face->root.glyph->internal->flags |= FT_GLYPH_OWN_BITMAP;
+ }
}
return error;
diff --git a/src/sfnt/ttsbit.h b/src/sfnt/ttsbit.h
index ea0b5f8..695d0d8 100644
--- a/src/sfnt/ttsbit.h
+++ b/src/sfnt/ttsbit.h
@@ -28,11 +28,11 @@
FT_LOCAL( FT_Error )
- tt_face_load_eblc( TT_Face face,
+ tt_face_load_sbit( TT_Face face,
FT_Stream stream );
FT_LOCAL( void )
- tt_face_free_eblc( TT_Face face );
+ tt_face_free_sbit( TT_Face face );
FT_LOCAL( FT_Error )
diff --git a/src/smooth/ftgrays.c b/src/smooth/ftgrays.c
index d2158e7..2c51e9f 100644
--- a/src/smooth/ftgrays.c
+++ b/src/smooth/ftgrays.c
@@ -24,8 +24,8 @@
/* */
/* - copy `src/smooth/ftgrays.c' (this file) to your current directory */
/* */
- /* - copy `include/freetype/ftimage.h' and `src/smooth/ftgrays.h' to the */
- /* same directory */
+ /* - copy `include/ftimage.h' and `src/smooth/ftgrays.h' to the same */
+ /* directory */
/* */
/* - compile `ftgrays' with the _STANDALONE_ macro defined, as in */
/* */
@@ -310,6 +310,40 @@
#endif
+ /* Compute `dividend / divisor' and return both its quotient and */
+ /* remainder, cast to a specific type. This macro also ensures that */
+ /* the remainder is always positive. */
+#define FT_DIV_MOD( type, dividend, divisor, quotient, remainder ) \
+ FT_BEGIN_STMNT \
+ (quotient) = (type)( (dividend) / (divisor) ); \
+ (remainder) = (type)( (dividend) % (divisor) ); \
+ if ( (remainder) < 0 ) \
+ { \
+ (quotient)--; \
+ (remainder) += (type)(divisor); \
+ } \
+ FT_END_STMNT
+
+#ifdef __arm__
+ /* Work around a bug specific to GCC which make the compiler fail to */
+ /* optimize a division and modulo operation on the same parameters */
+ /* into a single call to `__aeabi_idivmod'. See */
+ /* */
+ /* http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43721 */
+#undef FT_DIV_MOD
+#define FT_DIV_MOD( type, dividend, divisor, quotient, remainder ) \
+ FT_BEGIN_STMNT \
+ (quotient) = (type)( (dividend) / (divisor) ); \
+ (remainder) = (type)( (dividend) - (quotient) * (divisor) ); \
+ if ( (remainder) < 0 ) \
+ { \
+ (quotient)--; \
+ (remainder) += (type)(divisor); \
+ } \
+ FT_END_STMNT
+#endif /* __arm__ */
+
+
/*************************************************************************/
/* */
/* TYPE DEFINITIONS */
@@ -358,6 +392,14 @@
} TCell;
+#if defined( _MSC_VER ) /* Visual C++ (and Intel C++) */
+ /* We disable the warning `structure was padded due to */
+ /* __declspec(align())' in order to compile cleanly with */
+ /* the maximum level of warnings. */
+#pragma warning( push )
+#pragma warning( disable : 4324 )
+#endif /* _MSC_VER */
+
typedef struct gray_TWorker_
{
TCoord ex, ey;
@@ -405,6 +447,10 @@
} gray_TWorker, *gray_PWorker;
+#if defined( _MSC_VER )
+#pragma warning( pop )
+#endif
+
#ifndef FT_STATIC_RASTER
#define ras (*worker)
@@ -536,7 +582,7 @@
static void
gray_record_cell( RAS_ARG )
{
- if ( !ras.invalid && ( ras.area | ras.cover ) )
+ if ( ras.area | ras.cover )
{
PCell cell = gray_find_cell( RAS_VAR );
@@ -585,10 +631,10 @@
ras.area = 0;
ras.cover = 0;
+ ras.ex = ex;
+ ras.ey = ey;
}
- ras.ex = ex;
- ras.ey = ey;
ras.invalid = ( (unsigned)ey >= (unsigned)ras.count_ey ||
ex >= ras.count_ex );
}
@@ -674,13 +720,7 @@
dx = -dx;
}
- delta = (TCoord)( p / dx );
- mod = (TCoord)( p % dx );
- if ( mod < 0 )
- {
- delta--;
- mod += (TCoord)dx;
- }
+ FT_DIV_MOD( TCoord, p, dx, delta, mod );
ras.area += (TArea)(( fx1 + first ) * delta);
ras.cover += delta;
@@ -694,14 +734,8 @@
TCoord lift, rem;
- p = ONE_PIXEL * ( y2 - y1 + delta );
- lift = (TCoord)( p / dx );
- rem = (TCoord)( p % dx );
- if ( rem < 0 )
- {
- lift--;
- rem += (TCoord)dx;
- }
+ p = ONE_PIXEL * ( y2 - y1 + delta );
+ FT_DIV_MOD( TCoord, p, dx, lift, rem );
mod -= (int)dx;
@@ -751,9 +785,6 @@
dx = to_x - ras.x;
dy = to_y - ras.y;
- /* XXX: we should do something about the trivial case where dx == 0, */
- /* as it happens very often! */
-
/* perform vertical clipping */
{
TCoord min, max;
@@ -832,13 +863,7 @@
dy = -dy;
}
- delta = (int)( p / dy );
- mod = (int)( p % dy );
- if ( mod < 0 )
- {
- delta--;
- mod += (TCoord)dy;
- }
+ FT_DIV_MOD( int, p, dy, delta, mod );
x = ras.x + delta;
gray_render_scanline( RAS_VAR_ ey1, ras.x, fy1, x, (TCoord)first );
@@ -849,13 +874,7 @@
if ( ey1 != ey2 )
{
p = ONE_PIXEL * dx;
- lift = (int)( p / dy );
- rem = (int)( p % dy );
- if ( rem < 0 )
- {
- lift--;
- rem += (int)dy;
- }
+ FT_DIV_MOD( int, p, dy, lift, rem );
mod -= (int)dy;
while ( ey1 != ey2 )
@@ -1159,7 +1178,8 @@
/* record current cell, if any */
- gray_record_cell( RAS_VAR );
+ if ( !ras.invalid )
+ gray_record_cell( RAS_VAR );
/* start to a new position */
x = UPSCALE( to->x );
@@ -1769,7 +1789,8 @@
if ( ft_setjmp( ras.jump_buffer ) == 0 )
{
error = FT_Outline_Decompose( &ras.outline, &func_interface, &ras );
- gray_record_cell( RAS_VAR );
+ if ( !ras.invalid )
+ gray_record_cell( RAS_VAR );
}
else
error = FT_THROW( Memory_Overflow );
diff --git a/src/truetype/ttdriver.c b/src/truetype/ttdriver.c
index fb25706..36d23a2 100644
--- a/src/truetype/ttdriver.c
+++ b/src/truetype/ttdriver.c
@@ -215,7 +215,8 @@
FT_UShort ah;
- TT_Get_VMetrics( face, start + nn, &tsb, &ah );
+ /* since we don't need `tsb', we use zero for `yMax' parameter */
+ TT_Get_VMetrics( face, start + nn, 0, &tsb, &ah );
advances[nn] = ah;
}
}
diff --git a/src/truetype/ttgload.c b/src/truetype/ttgload.c
index f640a6c..b10e390 100644
--- a/src/truetype/ttgload.c
+++ b/src/truetype/ttgload.c
@@ -85,51 +85,36 @@
/*************************************************************************/
/* */
/* Return the vertical metrics in font units for a given glyph. */
- /* Greg Hitchcock from Microsoft told us that if there were no `vmtx' */
- /* table, typoAscender/Descender from the `OS/2' table would be used */
- /* instead, and if there were no `OS/2' table, use ascender/descender */
- /* from the `hhea' table. But that is not what Microsoft's rasterizer */
- /* apparently does: It uses the ppem value as the advance height, and */
- /* sets the top side bearing to be zero. */
+ /* See macro `TT_LOADER_SET_PP' below for explanations. */
/* */
FT_LOCAL_DEF( void )
TT_Get_VMetrics( TT_Face face,
FT_UInt idx,
+ FT_Pos yMax,
FT_Short* tsb,
FT_UShort* ah )
{
if ( face->vertical_info )
( (SFNT_Service)face->sfnt )->get_metrics( face, 1, idx, tsb, ah );
-#if 1 /* Empirically determined, at variance with what MS said */
-
- else
- {
- *tsb = 0;
- *ah = face->root.units_per_EM;
- }
-
-#else /* This is what MS said to do. It isn't what they do, however. */
-
else if ( face->os2.version != 0xFFFFU )
{
- *tsb = face->os2.sTypoAscender;
+ *tsb = face->os2.sTypoAscender - yMax;
*ah = face->os2.sTypoAscender - face->os2.sTypoDescender;
}
+
else
{
- *tsb = face->horizontal.Ascender;
+ *tsb = face->horizontal.Ascender - yMax;
*ah = face->horizontal.Ascender - face->horizontal.Descender;
}
-#endif
-
FT_TRACE5(( " advance height (font units): %d\n", *ah ));
FT_TRACE5(( " top side bearing (font units): %d\n", *tsb ));
}
- static void
+ static FT_Error
tt_get_metrics( TT_Loader loader,
FT_UInt glyph_index )
{
@@ -138,17 +123,28 @@
TT_Driver driver = (TT_Driver)FT_FACE_DRIVER( face );
#endif
+ FT_Error error;
+ FT_Stream stream = loader->stream;
+
FT_Short left_bearing = 0, top_bearing = 0;
FT_UShort advance_width = 0, advance_height = 0;
+ /* we must preserve the stream position */
+ /* (which gets altered by the metrics functions) */
+ FT_ULong pos = FT_STREAM_POS();
+
TT_Get_HMetrics( face, glyph_index,
&left_bearing,
&advance_width );
TT_Get_VMetrics( face, glyph_index,
+ loader->bbox.yMax,
&top_bearing,
&advance_height );
+ if ( FT_STREAM_SEEK( pos ) )
+ return error;
+
loader->left_bearing = left_bearing;
loader->advance = advance_width;
loader->top_bearing = top_bearing;
@@ -171,6 +167,8 @@
loader->linear_def = 1;
loader->linear = advance_width;
}
+
+ return FT_Err_Ok;
}
@@ -350,9 +348,9 @@
FT_GlyphLoader gloader = load->gloader;
FT_Int n_contours = load->n_contours;
FT_Outline* outline;
- TT_Face face = (TT_Face)load->face;
FT_UShort n_ins;
FT_Int n_points;
+ FT_ULong tmp;
FT_Byte *flag, *flag_limit;
FT_Byte c, count;
@@ -418,14 +416,7 @@
FT_TRACE5(( " Instructions size: %u\n", n_ins ));
- if ( n_ins > face->max_profile.maxSizeOfInstructions )
- {
- FT_TRACE0(( "TT_Load_Simple_Glyph: too many instructions (%d)\n",
- n_ins ));
- error = FT_THROW( Too_Many_Hints );
- goto Fail;
- }
-
+ /* check it */
if ( ( limit - p ) < n_ins )
{
FT_TRACE0(( "TT_Load_Simple_Glyph: instruction count mismatch\n" ));
@@ -437,6 +428,20 @@
if ( IS_HINTED( load->load_flags ) )
{
+ /* we don't trust `maxSizeOfInstructions' in the `maxp' table */
+ /* and thus update the bytecode array size by ourselves */
+
+ tmp = load->exec->glyphSize;
+ error = Update_Max( load->exec->memory,
+ &tmp,
+ sizeof ( FT_Byte ),
+ (void*)&load->exec->glyphIns,
+ n_ins );
+
+ load->exec->glyphSize = (FT_UShort)tmp;
+ if ( error )
+ return error;
+
load->glyph->control_len = n_ins;
load->glyph->control_data = load->exec->glyphIns;
@@ -733,7 +738,6 @@
#endif
TT_GlyphZone zone = &loader->zone;
- FT_Pos origin;
#ifdef TT_USE_BYTECODE_INTERPRETER
FT_UInt n_ins;
@@ -745,19 +749,12 @@
#ifdef TT_USE_BYTECODE_INTERPRETER
if ( loader->glyph->control_len > 0xFFFFL )
{
- FT_TRACE1(( "TT_Hint_Glyph: too long instructions " ));
- FT_TRACE1(( "(0x%lx byte) is truncated\n",
+ FT_TRACE1(( "TT_Hint_Glyph: too long instructions" ));
+ FT_TRACE1(( " (0x%lx byte) is truncated\n",
loader->glyph->control_len ));
}
n_ins = (FT_UInt)( loader->glyph->control_len );
-#endif
- origin = zone->cur[zone->n_points - 4].x;
- origin = FT_PIX_ROUND( origin ) - origin;
- if ( origin )
- translate_array( zone->n_points, zone->cur, origin, 0 );
-
-#ifdef TT_USE_BYTECODE_INTERPRETER
/* save original point position in org */
if ( n_ins > 0 )
FT_ARRAY_COPY( zone->org, zone->cur, zone->n_points );
@@ -783,9 +780,13 @@
}
#endif
- /* round pp2 and pp4 */
+ /* round phantom points */
+ zone->cur[zone->n_points - 4].x =
+ FT_PIX_ROUND( zone->cur[zone->n_points - 4].x );
zone->cur[zone->n_points - 3].x =
FT_PIX_ROUND( zone->cur[zone->n_points - 3].x );
+ zone->cur[zone->n_points - 2].y =
+ FT_PIX_ROUND( zone->cur[zone->n_points - 2].y );
zone->cur[zone->n_points - 1].y =
FT_PIX_ROUND( zone->cur[zone->n_points - 1].y );
@@ -823,13 +824,10 @@
#endif
/* save glyph phantom points */
- if ( !loader->preserve_pps )
- {
- loader->pp1 = zone->cur[zone->n_points - 4];
- loader->pp2 = zone->cur[zone->n_points - 3];
- loader->pp3 = zone->cur[zone->n_points - 2];
- loader->pp4 = zone->cur[zone->n_points - 1];
- }
+ loader->pp1 = zone->cur[zone->n_points - 4];
+ loader->pp2 = zone->cur[zone->n_points - 3];
+ loader->pp3 = zone->cur[zone->n_points - 2];
+ loader->pp4 = zone->cur[zone->n_points - 1];
#ifdef TT_CONFIG_OPTION_SUBPIXEL_HINTING
if ( driver->interpreter_version == TT_INTERPRETER_VERSION_38 )
@@ -1077,9 +1075,9 @@
if ( !x && !y )
return FT_Err_Ok;
- /* Use a default value dependent on */
- /* TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED. This is useful for old TT */
- /* fonts which don't set the xxx_COMPONENT_OFFSET bit. */
+ /* Use a default value dependent on */
+ /* TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED. This is useful for old */
+ /* TT fonts which don't set the xxx_COMPONENT_OFFSET bit. */
if ( have_scale &&
#ifdef TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED
@@ -1091,10 +1089,10 @@
#if 0
- /*************************************************************************/
- /* */
- /* This algorithm is what Apple documents. But it doesn't work. */
- /* */
+ /*******************************************************************/
+ /* */
+ /* This algorithm is what Apple documents. But it doesn't work. */
+ /* */
int a = subglyph->transform.xx > 0 ? subglyph->transform.xx
: -subglyph->transform.xx;
int b = subglyph->transform.yx > 0 ? subglyph->transform.yx
@@ -1114,12 +1112,12 @@
x = FT_MulFix( x, m );
y = FT_MulFix( y, n );
-#else /* 0 */
+#else /* 1 */
- /*************************************************************************/
- /* */
- /* This algorithm is a guess and works much better than the above. */
- /* */
+ /*******************************************************************/
+ /* */
+ /* This algorithm is a guess and works much better than the above. */
+ /* */
FT_Fixed mac_xscale = FT_Hypot( subglyph->transform.xx,
subglyph->transform.xy );
FT_Fixed mac_yscale = FT_Hypot( subglyph->transform.yy,
@@ -1129,7 +1127,7 @@
x = FT_MulFix( x, mac_xscale );
y = FT_MulFix( y, mac_yscale );
-#endif /* 0 */
+#endif /* 1 */
}
@@ -1218,21 +1216,23 @@
max_ins = ((TT_Face)loader->face)->max_profile.maxSizeOfInstructions;
if ( n_ins > max_ins )
{
- /* acroread ignores this field, so we only do a rough safety check */
+ /* don't trust `maxSizeOfInstructions'; */
+ /* only do a rough safety check */
if ( (FT_Int)n_ins > loader->byte_len )
{
- FT_TRACE1(( "TT_Process_Composite_Glyph: "
- "too many instructions (%d) for glyph with length %d\n",
+ FT_TRACE1(( "TT_Process_Composite_Glyph:"
+ " too many instructions (%d) for glyph with length %d\n",
n_ins, loader->byte_len ));
return FT_THROW( Too_Many_Hints );
}
- tmp = loader->exec->glyphSize;
+ tmp = loader->exec->glyphSize;
error = Update_Max( loader->exec->memory,
&tmp,
sizeof ( FT_Byte ),
(void*)&loader->exec->glyphIns,
n_ins );
+
loader->exec->glyphSize = (FT_UShort)tmp;
if ( error )
return error;
@@ -1254,7 +1254,7 @@
/* Some points are likely touched during execution of */
/* instructions on components. So let's untouch them. */
- for ( i = start_point; i < loader->zone.n_points; i++ )
+ for ( i = 0; i < loader->zone.n_points; i++ )
loader->zone.tags[i] &= ~FT_CURVE_TAG_TOUCH_BOTH;
loader->zone.n_points += 4;
@@ -1263,21 +1263,131 @@
}
- /* Calculate the four phantom points. */
- /* The first two stand for horizontal origin and advance. */
- /* The last two stand for vertical origin and advance. */
+ /*
+ * Calculate the phantom points
+ *
+ * Defining the right side bearing (rsb) as
+ *
+ * rsb = aw - (lsb + xmax - xmin)
+ *
+ * (with `aw' the advance width, `lsb' the left side bearing, and `xmin'
+ * and `xmax' the glyph's minimum and maximum x value), the OpenType
+ * specification defines the initial position of horizontal phantom points
+ * as
+ *
+ * pp1 = (round(xmin - lsb), 0) ,
+ * pp2 = (round(pp1 + aw), 0) .
+ *
+ * Note that the rounding to the grid (in the device space) is not
+ * documented currently in the specification.
+ *
+ * However, the specification lacks the precise definition of vertical
+ * phantom points. Greg Hitchcock provided the following explanation.
+ *
+ * - a `vmtx' table is present
+ *
+ * For any glyph, the minimum and maximum y values (`ymin' and `ymax')
+ * are given in the `glyf' table, the top side bearing (tsb) and advance
+ * height (ah) are given in the `vmtx' table. The bottom side bearing
+ * (bsb) is then calculated as
+ *
+ * bsb = ah - (tsb + ymax - ymin) ,
+ *
+ * and the initial position of vertical phantom points is
+ *
+ * pp3 = (x, round(ymax + tsb)) ,
+ * pp4 = (x, round(pp3 - ah)) .
+ *
+ * See below for value `x'.
+ *
+ * - no `vmtx' table in the font
+ *
+ * If there is an `OS/2' table, we set
+ *
+ * DefaultAscender = sTypoAscender ,
+ * DefaultDescender = sTypoDescender ,
+ *
+ * otherwise we use data from the `hhea' table:
+ *
+ * DefaultAscender = Ascender ,
+ * DefaultDescender = Descender .
+ *
+ * With these two variables we can now set
+ *
+ * ah = DefaultAscender - sDefaultDescender ,
+ * tsb = DefaultAscender - yMax ,
+ *
+ * and proceed as if a `vmtx' table was present.
+ *
+ * Usually we have
+ *
+ * x = aw / 2 , (1)
+ *
+ * but there is one compatibility case where it can be set to
+ *
+ * x = -DefaultDescender -
+ * ((DefaultAscender - DefaultDescender - aw) / 2) . (2)
+ *
+ * and another one with
+ *
+ * x = 0 . (3)
+ *
+ * In Windows, the history of those values is quite complicated,
+ * depending on the hinting engine (that is, the graphics framework).
+ *
+ * framework from to formula
+ * ----------------------------------------------------------
+ * GDI Windows 98 current (1)
+ * (Windows 2000 for NT)
+ * GDI+ Windows XP Windows 7 (2)
+ * GDI+ Windows 8 current (3)
+ * DWrite Windows 7 current (3)
+ *
+ * For simplicity, FreeType uses (1) for grayscale subpixel hinting and
+ * (3) for everything else.
+ *
+ */
+#ifdef TT_CONFIG_OPTION_SUBPIXEL_HINTING
+
#define TT_LOADER_SET_PP( loader ) \
- do { \
+ do \
+ { \
+ FT_Bool subpixel_ = loader->exec ? loader->exec->subpixel \
+ : 0; \
+ FT_Bool grayscale_ = loader->exec ? loader->exec->grayscale \
+ : 0; \
+ FT_Bool use_aw_2_ = (FT_Bool)( subpixel_ && grayscale_ ); \
+ \
+ \
(loader)->pp1.x = (loader)->bbox.xMin - (loader)->left_bearing; \
(loader)->pp1.y = 0; \
(loader)->pp2.x = (loader)->pp1.x + (loader)->advance; \
(loader)->pp2.y = 0; \
+ \
+ (loader)->pp3.x = use_aw_2_ ? (loader)->advance / 2 : 0; \
+ (loader)->pp3.y = (loader)->bbox.yMax + (loader)->top_bearing; \
+ (loader)->pp4.x = use_aw_2_ ? (loader)->advance / 2 : 0; \
+ (loader)->pp4.y = (loader)->pp3.y - (loader)->vadvance; \
+ } while ( 0 )
+
+#else /* !TT_CONFIG_OPTION_SUBPIXEL_HINTING */
+
+#define TT_LOADER_SET_PP( loader ) \
+ do \
+ { \
+ (loader)->pp1.x = (loader)->bbox.xMin - (loader)->left_bearing; \
+ (loader)->pp1.y = 0; \
+ (loader)->pp2.x = (loader)->pp1.x + (loader)->advance; \
+ (loader)->pp2.y = 0; \
+ \
(loader)->pp3.x = 0; \
- (loader)->pp3.y = (loader)->top_bearing + (loader)->bbox.yMax; \
+ (loader)->pp3.y = (loader)->bbox.yMax + (loader)->top_bearing; \
(loader)->pp4.x = 0; \
(loader)->pp4.y = (loader)->pp3.y - (loader)->vadvance; \
} while ( 0 )
+#endif /* !TT_CONFIG_OPTION_SUBPIXEL_HINTING */
+
/*************************************************************************/
/* */
@@ -1341,8 +1451,6 @@
y_scale = 0x10000L;
}
- tt_get_metrics( loader, glyph_index );
-
/* Set `offset' to the start of the glyph relative to the start of */
/* the `glyf' table, and `byte_len' to the length of the glyph in */
/* bytes. */
@@ -1402,7 +1510,17 @@
/* read glyph header first */
error = face->read_glyph_header( loader );
- if ( error || header_only )
+ if ( error )
+ goto Exit;
+
+ /* the metrics must be computed after loading the glyph header */
+ /* since we need the glyph's `yMax' value in case the vertical */
+ /* metrics must be emulated */
+ error = tt_get_metrics( loader, glyph_index );
+ if ( error )
+ goto Exit;
+
+ if ( header_only )
goto Exit;
}
@@ -1413,6 +1531,10 @@
loader->bbox.yMin = 0;
loader->bbox.yMax = 0;
+ error = tt_get_metrics( loader, glyph_index );
+ if ( error )
+ goto Exit;
+
if ( header_only )
goto Exit;
@@ -1437,21 +1559,32 @@
if ( error )
goto Exit;
- loader->pp1.x += deltas[0].x; loader->pp1.y += deltas[0].y;
- loader->pp2.x += deltas[1].x; loader->pp2.y += deltas[1].y;
- loader->pp3.x += deltas[2].x; loader->pp3.y += deltas[2].y;
- loader->pp4.x += deltas[3].x; loader->pp4.y += deltas[3].y;
+ loader->pp1.x += deltas[0].x;
+ loader->pp1.y += deltas[0].y;
+ loader->pp2.x += deltas[1].x;
+ loader->pp2.y += deltas[1].y;
+
+ loader->pp3.x += deltas[2].x;
+ loader->pp3.y += deltas[2].y;
+ loader->pp4.x += deltas[3].x;
+ loader->pp4.y += deltas[3].y;
FT_FREE( deltas );
}
-#endif
+#endif /* TT_CONFIG_OPTION_GX_VAR_SUPPORT */
+ /* scale phantom points, if necessary; */
+ /* they get rounded in `TT_Hint_Glyph' */
if ( ( loader->load_flags & FT_LOAD_NO_SCALE ) == 0 )
{
loader->pp1.x = FT_MulFix( loader->pp1.x, x_scale );
loader->pp2.x = FT_MulFix( loader->pp2.x, x_scale );
+ /* pp1.y and pp2.y are always zero */
+
+ loader->pp3.x = FT_MulFix( loader->pp3.x, x_scale );
loader->pp3.y = FT_MulFix( loader->pp3.y, y_scale );
+ loader->pp4.x = FT_MulFix( loader->pp4.x, x_scale );
loader->pp4.y = FT_MulFix( loader->pp4.y, y_scale );
}
@@ -1459,8 +1592,8 @@
goto Exit;
}
- /* must initialize points before (possibly) overriding */
- /* glyph metrics from the incremental interface */
+ /* must initialize phantom points before (possibly) overriding */
+ /* glyph metrics from the incremental interface */
TT_LOADER_SET_PP( loader );
#ifdef FT_CONFIG_OPTION_INCREMENTAL
@@ -1533,7 +1666,7 @@
face,
glyph_index,
&deltas,
- gloader->current.num_subglyphs + 4 )) != 0 )
+ gloader->current.num_subglyphs + 4 ) ) != 0 )
goto Exit;
subglyph = gloader->current.subglyphs + gloader->base.num_subglyphs;
@@ -1551,21 +1684,32 @@
}
}
- loader->pp1.x += deltas[i + 0].x; loader->pp1.y += deltas[i + 0].y;
- loader->pp2.x += deltas[i + 1].x; loader->pp2.y += deltas[i + 1].y;
- loader->pp3.x += deltas[i + 2].x; loader->pp3.y += deltas[i + 2].y;
- loader->pp4.x += deltas[i + 3].x; loader->pp4.y += deltas[i + 3].y;
+ loader->pp1.x += deltas[i + 0].x;
+ loader->pp1.y += deltas[i + 0].y;
+ loader->pp2.x += deltas[i + 1].x;
+ loader->pp2.y += deltas[i + 1].y;
+
+ loader->pp3.x += deltas[i + 2].x;
+ loader->pp3.y += deltas[i + 2].y;
+ loader->pp4.x += deltas[i + 3].x;
+ loader->pp4.y += deltas[i + 3].y;
FT_FREE( deltas );
}
#endif /* TT_CONFIG_OPTION_GX_VAR_SUPPORT */
+ /* scale phantom points, if necessary; */
+ /* they get rounded in `TT_Hint_Glyph' */
if ( ( loader->load_flags & FT_LOAD_NO_SCALE ) == 0 )
{
loader->pp1.x = FT_MulFix( loader->pp1.x, x_scale );
loader->pp2.x = FT_MulFix( loader->pp2.x, x_scale );
+ /* pp1.y and pp2.y are always zero */
+
+ loader->pp3.x = FT_MulFix( loader->pp3.x, x_scale );
loader->pp3.y = FT_MulFix( loader->pp3.y, y_scale );
+ loader->pp4.x = FT_MulFix( loader->pp4.x, x_scale );
loader->pp4.y = FT_MulFix( loader->pp4.y, y_scale );
}
@@ -1625,6 +1769,7 @@
/* restore subglyph pointer */
subglyph = gloader->base.subglyphs + num_base_subgs + n;
+ /* restore phantom points if necessary */
if ( !( subglyph->flags & USE_MY_METRICS ) )
{
loader->pp1 = pp[0];
@@ -1961,8 +2106,7 @@
#ifdef TT_CONFIG_OPTION_SUBPIXEL_HINTING
TT_Driver driver = (TT_Driver)FT_FACE_DRIVER( face );
- FT_Bool subpixel_hinting = FALSE;
- FT_Bool grayscale_hinting = TRUE;
+ FT_Bool subpixel = FALSE;
#if 0
/* not used yet */
@@ -1995,24 +2139,24 @@
if ( driver->interpreter_version == TT_INTERPRETER_VERSION_38 )
{
- subpixel_hinting = FT_BOOL( ( FT_LOAD_TARGET_MODE( load_flags )
- != FT_RENDER_MODE_MONO ) &&
- SPH_OPTION_SET_SUBPIXEL );
+ subpixel = FT_BOOL( ( FT_LOAD_TARGET_MODE( load_flags ) !=
+ FT_RENDER_MODE_MONO ) &&
+ SPH_OPTION_SET_SUBPIXEL );
- if ( subpixel_hinting )
- grayscale = grayscale_hinting = FALSE;
+ if ( subpixel )
+ grayscale = FALSE;
else if ( SPH_OPTION_SET_GRAYSCALE )
{
- grayscale = grayscale_hinting = TRUE;
- subpixel_hinting = FALSE;
+ grayscale = TRUE;
+ subpixel = FALSE;
}
else
- grayscale = grayscale_hinting = FALSE;
+ grayscale = FALSE;
if ( FT_IS_TRICKY( glyph->face ) )
- subpixel_hinting = grayscale_hinting = FALSE;
+ subpixel = FALSE;
- exec->ignore_x_mode = subpixel_hinting || grayscale_hinting;
+ exec->ignore_x_mode = subpixel || grayscale;
exec->rasterizer_version = SPH_OPTION_SET_RASTERIZER_VERSION;
if ( exec->sph_tweak_flags & SPH_TWEAK_RASTERIZER_35 )
exec->rasterizer_version = TT_INTERPRETER_VERSION_35;
@@ -2055,24 +2199,24 @@
{
/* a change from mono to subpixel rendering (and vice versa) */
/* requires a re-execution of the CVT program */
- if ( subpixel_hinting != exec->subpixel_hinting )
+ if ( subpixel != exec->subpixel )
{
FT_TRACE4(( "tt_loader_init: subpixel hinting change,"
" re-executing `prep' table\n" ));
- exec->subpixel_hinting = subpixel_hinting;
- reexecute = TRUE;
+ exec->subpixel = subpixel;
+ reexecute = TRUE;
}
/* a change from mono to grayscale rendering (and vice versa) */
/* requires a re-execution of the CVT program */
- if ( grayscale != exec->grayscale_hinting )
+ if ( grayscale != exec->grayscale )
{
FT_TRACE4(( "tt_loader_init: grayscale hinting change,"
" re-executing `prep' table\n" ));
- exec->grayscale_hinting = grayscale_hinting;
- reexecute = TRUE;
+ exec->grayscale = grayscale;
+ reexecute = TRUE;
}
}
else
@@ -2204,6 +2348,8 @@
error = FT_Err_Ok;
+ FT_TRACE1(( "TT_Load_Glyph: glyph index %d\n", glyph_index ));
+
#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS
/* try to load embedded bitmap if any */
diff --git a/src/truetype/ttgload.h b/src/truetype/ttgload.h
index 05f7588..3f1699e 100644
--- a/src/truetype/ttgload.h
+++ b/src/truetype/ttgload.h
@@ -43,6 +43,7 @@
FT_LOCAL( void )
TT_Get_VMetrics( TT_Face face,
FT_UInt idx,
+ FT_Pos yMax,
FT_Short* tsb,
FT_UShort* ah );
diff --git a/src/truetype/ttinterp.c b/src/truetype/ttinterp.c
index 798d4a9..3f110c2 100644
--- a/src/truetype/ttinterp.c
+++ b/src/truetype/ttinterp.c
@@ -1437,8 +1437,107 @@
#undef PACK
-#if 1
+#ifndef FT_CONFIG_OPTION_NO_ASSEMBLER
+
+#if defined( __arm__ ) && \
+ ( defined( __thumb2__ ) || !defined( __thumb__ ) )
+
+#define TT_MulFix14 TT_MulFix14_arm
+
+ static FT_Int32
+ TT_MulFix14_arm( FT_Int32 a,
+ FT_Int b )
+ {
+ register FT_Int32 t, t2;
+
+
+#if defined( __CC_ARM ) || defined( __ARMCC__ )
+
+ __asm
+ {
+ smull t2, t, b, a /* (lo=t2,hi=t) = a*b */
+ mov a, t, asr #31 /* a = (hi >> 31) */
+ add a, a, #0x2000 /* a += 0x2000 */
+ adds t2, t2, a /* t2 += a */
+ adc t, t, #0 /* t += carry */
+ mov a, t2, lsr #14 /* a = t2 >> 14 */
+ orr a, a, t, lsl #18 /* a |= t << 18 */
+ }
+
+#elif defined( __GNUC__ )
+
+ __asm__ __volatile__ (
+ "smull %1, %2, %4, %3\n\t" /* (lo=%1,hi=%2) = a*b */
+ "mov %0, %2, asr #31\n\t" /* %0 = (hi >> 31) */
+#ifdef __clang__
+ "add.w %0, %0, #0x2000\n\t" /* %0 += 0x2000 */
+#else
+ "add %0, %0, #0x2000\n\t" /* %0 += 0x2000 */
+#endif
+ "adds %1, %1, %0\n\t" /* %1 += %0 */
+ "adc %2, %2, #0\n\t" /* %2 += carry */
+ "mov %0, %1, lsr #14\n\t" /* %0 = %1 >> 16 */
+ "orr %0, %0, %2, lsl #18\n\t" /* %0 |= %2 << 16 */
+ : "=r"(a), "=&r"(t2), "=&r"(t)
+ : "r"(a), "r"(b)
+ : "cc" );
+
+#endif
+
+ return a;
+ }
+
+#endif /* __arm__ && ( __thumb2__ || !__thumb__ ) */
+
+#endif /* !FT_CONFIG_OPTION_NO_ASSEMBLER */
+
+
+#if defined( __GNUC__ ) && \
+ ( defined( __i386__ ) || defined( __x86_64__ ) )
+
+#define TT_MulFix14 TT_MulFix14_long_long
+
+ /* Temporarily disable the warning that C90 doesn't support `long long'. */
+#if ( __GNUC__ * 100 + __GNUC_MINOR__ ) >= 406
+#pragma GCC diagnostic push
+#endif
+#pragma GCC diagnostic ignored "-Wlong-long"
+
+ /* This is declared `noinline' because inlining the function results */
+ /* in slower code. The `pure' attribute indicates that the result */
+ /* only depends on the parameters. */
+ static __attribute__(( noinline ))
+ __attribute__(( pure )) FT_Int32
+ TT_MulFix14_long_long( FT_Int32 a,
+ FT_Int b )
+ {
+
+ long long ret = (long long)a * b;
+
+ /* The following line assumes that right shifting of signed values */
+ /* will actually preserve the sign bit. The exact behaviour is */
+ /* undefined, but this is true on x86 and x86_64. */
+ long long tmp = ret >> 63;
+
+
+ ret += 0x2000 + tmp;
+
+ return (FT_Int32)( ret >> 14 );
+ }
+
+#if ( __GNUC__ * 100 + __GNUC_MINOR__ ) >= 406
+#pragma GCC diagnostic pop
+#endif
+
+#endif /* __GNUC__ && ( __i386__ || __x86_64__ ) */
+
+
+#ifndef TT_MulFix14
+
+ /* Compute (a*b)/2^14 with maximum accuracy and rounding. */
+ /* This is optimized to be faster than calling FT_MulFix() */
+ /* for platforms where sizeof(int) == 2. */
static FT_Int32
TT_MulFix14( FT_Int32 a,
FT_Int b )
@@ -1470,37 +1569,50 @@
return sign >= 0 ? (FT_Int32)mid : -(FT_Int32)mid;
}
-#else
+#endif /* !TT_MulFix14 */
- /* compute (a*b)/2^14 with maximum accuracy and rounding */
- static FT_Int32
- TT_MulFix14( FT_Int32 a,
- FT_Int b )
+
+#if defined( __GNUC__ ) && \
+ ( defined( __i386__ ) || \
+ defined( __x86_64__ ) || \
+ defined( __arm__ ) )
+
+#define TT_DotFix14 TT_DotFix14_long_long
+
+#if ( __GNUC__ * 100 + __GNUC_MINOR__ ) >= 406
+#pragma GCC diagnostic push
+#endif
+#pragma GCC diagnostic ignored "-Wlong-long"
+
+ static __attribute__(( pure )) FT_Int32
+ TT_DotFix14_long_long( FT_Int32 ax,
+ FT_Int32 ay,
+ FT_Int bx,
+ FT_Int by )
{
- FT_Int32 m, s, hi;
- FT_UInt32 l, lo;
+ /* Temporarily disable the warning that C90 doesn't support */
+ /* `long long'. */
+
+ long long temp1 = (long long)ax * bx;
+ long long temp2 = (long long)ay * by;
- /* compute ax*bx as 64-bit value */
- l = (FT_UInt32)( ( a & 0xFFFFU ) * b );
- m = ( a >> 16 ) * b;
+ temp1 += temp2;
+ temp2 = temp1 >> 63;
+ temp1 += 0x2000 + temp2;
- lo = l + ( (FT_UInt32)m << 16 );
- hi = ( m >> 16 ) + ( (FT_Int32)l >> 31 ) + ( lo < l );
+ return (FT_Int32)( temp1 >> 14 );
- /* divide the result by 2^14 with rounding */
- s = hi >> 31;
- l = lo + (FT_UInt32)s;
- hi += s + ( l < lo );
- lo = l;
-
- l = lo + 0x2000U;
- hi += l < lo;
-
- return (FT_Int32)( ( (FT_UInt32)hi << 18 ) | ( l >> 14 ) );
}
+
+#if ( __GNUC__ * 100 + __GNUC_MINOR__ ) >= 406
+#pragma GCC diagnostic pop
#endif
+#endif /* __GNUC__ && (__arm__ || __i386__ || __x86_64__) */
+
+
+#ifndef TT_DotFix14
/* compute (ax*bx+ay*by)/2^14 with maximum accuracy and rounding */
static FT_Int32
@@ -1543,6 +1655,8 @@
return (FT_Int32)( ( (FT_UInt32)hi << 18 ) | ( l >> 14 ) );
}
+#endif /* TT_DotFix14 */
+
/*************************************************************************/
/* */
@@ -3037,42 +3151,42 @@
}
-#define DO_JROT \
- if ( args[1] != 0 ) \
- { \
- if ( args[0] == 0 && CUR.args == 0 ) \
- CUR.error = FT_THROW( Bad_Argument ); \
- CUR.IP += args[0]; \
- if ( CUR.IP < 0 || \
- ( CUR.callTop > 0 && \
- CUR.IP > CUR.callStack[CUR.callTop - 1].Cur_End ) ) \
- CUR.error = FT_THROW( Bad_Argument ); \
- CUR.step_ins = FALSE; \
+#define DO_JROT \
+ if ( args[1] != 0 ) \
+ { \
+ if ( args[0] == 0 && CUR.args == 0 ) \
+ CUR.error = FT_THROW( Bad_Argument ); \
+ CUR.IP += args[0]; \
+ if ( CUR.IP < 0 || \
+ ( CUR.callTop > 0 && \
+ CUR.IP > CUR.callStack[CUR.callTop - 1].Def->end ) ) \
+ CUR.error = FT_THROW( Bad_Argument ); \
+ CUR.step_ins = FALSE; \
}
-#define DO_JMPR \
- if ( args[0] == 0 && CUR.args == 0 ) \
- CUR.error = FT_THROW( Bad_Argument ); \
- CUR.IP += args[0]; \
- if ( CUR.IP < 0 || \
- ( CUR.callTop > 0 && \
- CUR.IP > CUR.callStack[CUR.callTop - 1].Cur_End ) ) \
- CUR.error = FT_THROW( Bad_Argument ); \
+#define DO_JMPR \
+ if ( args[0] == 0 && CUR.args == 0 ) \
+ CUR.error = FT_THROW( Bad_Argument ); \
+ CUR.IP += args[0]; \
+ if ( CUR.IP < 0 || \
+ ( CUR.callTop > 0 && \
+ CUR.IP > CUR.callStack[CUR.callTop - 1].Def->end ) ) \
+ CUR.error = FT_THROW( Bad_Argument ); \
CUR.step_ins = FALSE;
-#define DO_JROF \
- if ( args[1] == 0 ) \
- { \
- if ( args[0] == 0 && CUR.args == 0 ) \
- CUR.error = FT_THROW( Bad_Argument ); \
- CUR.IP += args[0]; \
- if ( CUR.IP < 0 || \
- ( CUR.callTop > 0 && \
- CUR.IP > CUR.callStack[CUR.callTop - 1].Cur_End ) ) \
- CUR.error = FT_THROW( Bad_Argument ); \
- CUR.step_ins = FALSE; \
+#define DO_JROF \
+ if ( args[1] == 0 ) \
+ { \
+ if ( args[0] == 0 && CUR.args == 0 ) \
+ CUR.error = FT_THROW( Bad_Argument ); \
+ CUR.IP += args[0]; \
+ if ( CUR.IP < 0 || \
+ ( CUR.callTop > 0 && \
+ CUR.IP > CUR.callStack[CUR.callTop - 1].Def->end ) ) \
+ CUR.error = FT_THROW( Bad_Argument ); \
+ CUR.step_ins = FALSE; \
}
@@ -4788,7 +4902,7 @@
if ( pRec->Cur_Count > 0 )
{
CUR.callTop++;
- CUR.IP = pRec->Cur_Restart;
+ CUR.IP = pRec->Def->start;
}
else
/* Loop through the current function */
@@ -4878,8 +4992,7 @@
pCrec->Caller_Range = CUR.curRange;
pCrec->Caller_IP = CUR.IP + 1;
pCrec->Cur_Count = 1;
- pCrec->Cur_Restart = def->start;
- pCrec->Cur_End = def->end;
+ pCrec->Def = def;
CUR.callTop++;
@@ -4967,8 +5080,7 @@
pCrec->Caller_Range = CUR.curRange;
pCrec->Caller_IP = CUR.IP + 1;
pCrec->Cur_Count = (FT_Int)args[0];
- pCrec->Cur_Restart = def->start;
- pCrec->Cur_End = def->end;
+ pCrec->Def = def;
CUR.callTop++;
@@ -6173,7 +6285,7 @@
FT_F26Dot6 distance;
#ifdef TT_CONFIG_OPTION_SUBPIXEL_HINTING
- FT_F26Dot6 control_value_cutin;
+ FT_F26Dot6 control_value_cutin = 0; /* pacify compiler */
if ( SUBPIXEL_HINTING )
@@ -6542,8 +6654,8 @@
control_value_cutin,
minimum_distance;
#ifdef TT_CONFIG_OPTION_SUBPIXEL_HINTING
- FT_Int B1;
- FT_Int B2;
+ FT_Int B1 = 0; /* pacify compiler */
+ FT_Int B2 = 0;
FT_Bool reverse_move = FALSE;
#endif /* TT_CONFIG_OPTION_SUBPIXEL_HINTING */
@@ -7708,26 +7820,16 @@
CUR.ignore_x_mode &&
CUR.rasterizer_version >= TT_INTERPRETER_VERSION_35 )
{
- /********************************/
- /* HINTING FOR GRAYSCALE */
- /* Selector Bit: 5 */
- /* Return Bit(s): 12 */
- /* */
- if ( ( args[0] & 32 ) != 0 && CUR.grayscale_hinting )
- K |= 1 << 12;
- /********************************/
- /* HINTING FOR SUBPIXEL */
- /* Selector Bit: 6 */
- /* Return Bit(s): 13 */
- /* */
- if ( ( args[0] & 64 ) != 0 &&
- CUR.subpixel_hinting &&
- CUR.rasterizer_version >= 37 )
+ if ( CUR.rasterizer_version >= 37 )
{
- K |= 1 << 13;
-
- /* the stuff below is irrelevant if subpixel_hinting is not set */
+ /********************************/
+ /* HINTING FOR SUBPIXEL */
+ /* Selector Bit: 6 */
+ /* Return Bit(s): 13 */
+ /* */
+ if ( ( args[0] & 64 ) != 0 && CUR.subpixel )
+ K |= 1 << 13;
/********************************/
/* COMPATIBLE WIDTHS ENABLED */
@@ -7803,8 +7905,7 @@
call->Caller_Range = CUR.curRange;
call->Caller_IP = CUR.IP + 1;
call->Cur_Count = 1;
- call->Cur_Restart = def->start;
- call->Cur_End = def->end;
+ call->Def = def;
INS_Goto_CodeRange( def->range, def->start );
@@ -8860,8 +8961,7 @@
callrec->Caller_Range = CUR.curRange;
callrec->Caller_IP = CUR.IP + 1;
callrec->Cur_Count = 1;
- callrec->Cur_Restart = def->start;
- callrec->Cur_End = def->end;
+ callrec->Def = def;
if ( INS_Goto_CodeRange( def->range, def->start ) == FAILURE )
goto LErrorLabel_;
diff --git a/src/truetype/ttinterp.h b/src/truetype/ttinterp.h
index 69f5011..1d8825d 100644
--- a/src/truetype/ttinterp.h
+++ b/src/truetype/ttinterp.h
@@ -101,8 +101,8 @@
FT_Int Caller_Range;
FT_Long Caller_IP;
FT_Long Cur_Count;
- FT_Long Cur_Restart;
- FT_Long Cur_End;
+
+ TT_DefRecord *Def; /* either FDEF or IDEF */
} TT_CallRec, *TT_CallStack;
@@ -263,12 +263,10 @@
#ifdef TT_CONFIG_OPTION_SUBPIXEL_HINTING
TT_Round_Func func_round_sphn; /* subpixel rounding function */
- FT_Bool grayscale_hinting; /* Using grayscale hinting? */
- FT_Bool subpixel_hinting; /* Using subpixel hinting? */
- FT_Bool native_hinting; /* Using native hinting? */
+ FT_Bool subpixel; /* Using subpixel hinting? */
FT_Bool ignore_x_mode; /* Standard rendering mode for */
/* subpixel hinting. On if gray */
- /* or subpixel hinting is on ) */
+ /* or subpixel hinting is on. */
/* The following 4 aren't fully implemented but here for MS rasterizer */
/* compatibility. */
diff --git a/src/truetype/ttobjs.c b/src/truetype/ttobjs.c
index 7897efa..4adba58 100644
--- a/src/truetype/ttobjs.c
+++ b/src/truetype/ttobjs.c
@@ -150,20 +150,21 @@
tt_check_trickyness_family( FT_String* name )
{
-#define TRICK_NAMES_MAX_CHARACTERS 16
-#define TRICK_NAMES_COUNT 8
+#define TRICK_NAMES_MAX_CHARACTERS 19
+#define TRICK_NAMES_COUNT 9
static const char trick_names[TRICK_NAMES_COUNT]
[TRICK_NAMES_MAX_CHARACTERS + 1] =
{
- "DFKaiSho-SB", /* dfkaisb.ttf */
+ "DFKaiSho-SB", /* dfkaisb.ttf */
"DFKaiShu",
- "DFKai-SB", /* kaiu.ttf */
- "HuaTianKaiTi?", /* htkt2.ttf */
- "HuaTianSongTi?", /* htst3.ttf */
- "MingLiU", /* mingliu.ttf & mingliu.ttc */
- "PMingLiU", /* mingliu.ttc */
- "MingLi43", /* mingli.ttf */
+ "DFKai-SB", /* kaiu.ttf */
+ "HuaTianKaiTi?", /* htkt2.ttf */
+ "HuaTianSongTi?", /* htst3.ttf */
+ "Ming(for ISO10646)", /* hkscsiic.ttf & iicore.ttf */
+ "MingLiU", /* mingliu.ttf & mingliu.ttc */
+ "PMingLiU", /* mingliu.ttc */
+ "MingLi43", /* mingli.ttf */
};
int nn;
@@ -532,6 +533,10 @@
/* check that we have a valid TrueType file */
error = sfnt->init_face( stream, face, face_index, num_params, params );
+
+ /* Stream may have changed. */
+ stream = face->root.stream;
+
if ( error )
goto Exit;
