/* $Header: /cvs/maptools/cvsroot/libtiff/libtiff/tif_apple.c,v 1.3 2005/12/21 12:23:13 joris Exp $ */ | |
/* | |
* Copyright (c) 1988-1997 Sam Leffler | |
* Copyright (c) 1991-1997 Silicon Graphics, Inc. | |
* | |
* Permission to use, copy, modify, distribute, and sell this software and | |
* its documentation for any purpose is hereby granted without fee, provided | |
* that (i) the above copyright notices and this permission notice appear in | |
* all copies of the software and related documentation, and (ii) the names of | |
* Sam Leffler and Silicon Graphics may not be used in any advertising or | |
* publicity relating to the software without the specific, prior written | |
* permission of Sam Leffler and Silicon Graphics. | |
* | |
* THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, | |
* EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY | |
* WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. | |
* | |
* IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR | |
* ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, | |
* OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, | |
* WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF | |
* LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE | |
* OF THIS SOFTWARE. | |
*/ | |
/* | |
* TIFF Library Macintosh-specific routines. | |
* | |
* These routines use only Toolbox and high-level File Manager traps. | |
* They make no calls to the THINK C "unix" compatibility library. Also, | |
* malloc is not used directly but it is still referenced internally by | |
* the ANSI library in rare cases. Heap fragmentation by the malloc ring | |
* buffer is therefore minimized. | |
* | |
* O_RDONLY and O_RDWR are treated identically here. The tif_mode flag is | |
* checked in TIFFWriteCheck(). | |
* | |
* Create below fills in a blank creator signature and sets the file type | |
* to 'TIFF'. It is much better for the application to do this by Create'ing | |
* the file first and TIFFOpen'ing it later. | |
* --------- | |
* This code has been "Carbonized", and may not work with older MacOS versions. | |
* If so, grab the tif_apple.c out of an older libtiff distribution, like | |
* 3.5.5 from www.libtiff.org. | |
*/ | |
#include "tiffiop.h" | |
#include <Errors.h> | |
#include <Files.h> | |
#include <Memory.h> | |
#include <Script.h> | |
#if defined(__PPCC__) || defined(__SC__) || defined(__MRC__) || defined(applec) | |
#define CtoPstr c2pstr | |
#endif | |
static tsize_t | |
_tiffReadProc(thandle_t fd, tdata_t buf, tsize_t size) | |
{ | |
return (FSRead((short) fd, (long*) &size, (char*) buf) == noErr ? | |
size : (tsize_t) -1); | |
} | |
static tsize_t | |
_tiffWriteProc(thandle_t fd, tdata_t buf, tsize_t size) | |
{ | |
return (FSWrite((short) fd, (long*) &size, (char*) buf) == noErr ? | |
size : (tsize_t) -1); | |
} | |
static toff_t | |
_tiffSeekProc(thandle_t fd, toff_t off, int whence) | |
{ | |
long fpos, size; | |
if (GetEOF((short) fd, &size) != noErr) | |
return EOF; | |
(void) GetFPos((short) fd, &fpos); | |
switch (whence) { | |
case SEEK_CUR: | |
if (off + fpos > size) | |
SetEOF((short) fd, off + fpos); | |
if (SetFPos((short) fd, fsFromMark, off) != noErr) | |
return EOF; | |
break; | |
case SEEK_END: | |
if (off > 0) | |
SetEOF((short) fd, off + size); | |
if (SetFPos((short) fd, fsFromStart, off + size) != noErr) | |
return EOF; | |
break; | |
case SEEK_SET: | |
if (off > size) | |
SetEOF((short) fd, off); | |
if (SetFPos((short) fd, fsFromStart, off) != noErr) | |
return EOF; | |
break; | |
} | |
return (toff_t)(GetFPos((short) fd, &fpos) == noErr ? fpos : EOF); | |
} | |
static int | |
_tiffMapProc(thandle_t fd, tdata_t* pbase, toff_t* psize) | |
{ | |
return (0); | |
} | |
static void | |
_tiffUnmapProc(thandle_t fd, tdata_t base, toff_t size) | |
{ | |
} | |
static int | |
_tiffCloseProc(thandle_t fd) | |
{ | |
return (FSClose((short) fd)); | |
} | |
static toff_t | |
_tiffSizeProc(thandle_t fd) | |
{ | |
long size; | |
if (GetEOF((short) fd, &size) != noErr) { | |
TIFFErrorExt(fd, "_tiffSizeProc", "%s: Cannot get file size"); | |
return (-1L); | |
} | |
return ((toff_t) size); | |
} | |
/* | |
* Open a TIFF file descriptor for read/writing. | |
*/ | |
TIFF* | |
TIFFFdOpen(int fd, const char* name, const char* mode) | |
{ | |
TIFF* tif; | |
tif = TIFFClientOpen(name, mode, (thandle_t) fd, | |
_tiffReadProc, _tiffWriteProc, _tiffSeekProc, _tiffCloseProc, | |
_tiffSizeProc, _tiffMapProc, _tiffUnmapProc); | |
if (tif) | |
tif->tif_fd = fd; | |
return (tif); | |
} | |
static void ourc2pstr( char* inString ) | |
{ | |
int sLen = strlen( inString ); | |
BlockMoveData( inString, &inString[1], sLen ); | |
inString[0] = sLen; | |
} | |
/* | |
* Open a TIFF file for read/writing. | |
*/ | |
TIFF* | |
TIFFOpen(const char* name, const char* mode) | |
{ | |
static const char module[] = "TIFFOpen"; | |
Str255 pname; | |
FInfo finfo; | |
short fref; | |
OSErr err; | |
FSSpec fSpec; | |
strcpy((char*) pname, name); | |
ourc2pstr((char*) pname); | |
err = FSMakeFSSpec( 0, 0, pname, &fSpec ); | |
switch (_TIFFgetMode(mode, module)) { | |
default: | |
return ((TIFF*) 0); | |
case O_RDWR | O_CREAT | O_TRUNC: | |
if (FSpGetFInfo(&fSpec, &finfo) == noErr) | |
FSpDelete(&fSpec); | |
/* fall through */ | |
case O_RDWR | O_CREAT: | |
if ((err = FSpGetFInfo(&fSpec, &finfo)) == fnfErr) { | |
if (FSpCreate(&fSpec, ' ', 'TIFF', smSystemScript) != noErr) | |
goto badCreate; | |
if (FSpOpenDF(&fSpec, fsRdWrPerm, &fref) != noErr) | |
goto badOpen; | |
} else if (err == noErr) { | |
if (FSpOpenDF(&fSpec, fsRdWrPerm, &fref) != noErr) | |
goto badOpen; | |
} else | |
goto badOpen; | |
break; | |
case O_RDONLY: | |
if (FSpOpenDF(&fSpec, fsRdPerm, &fref) != noErr) | |
goto badOpen; | |
break; | |
case O_RDWR: | |
if (FSpOpenDF(&fSpec, fsRdWrPerm, &fref) != noErr) | |
goto badOpen; | |
break; | |
} | |
return (TIFFFdOpen((int) fref, name, mode)); | |
badCreate: | |
TIFFErrorExt(0, module, "%s: Cannot create", name); | |
return ((TIFF*) 0); | |
badOpen: | |
TIFFErrorExt(0, module, "%s: Cannot open", name); | |
return ((TIFF*) 0); | |
} | |
void | |
_TIFFmemset(tdata_t p, int v, tsize_t c) | |
{ | |
memset(p, v, (size_t) c); | |
} | |
void | |
_TIFFmemcpy(tdata_t d, const tdata_t s, tsize_t c) | |
{ | |
memcpy(d, s, (size_t) c); | |
} | |
int | |
_TIFFmemcmp(const tdata_t p1, const tdata_t p2, tsize_t c) | |
{ | |
return (memcmp(p1, p2, (size_t) c)); | |
} | |
tdata_t | |
_TIFFmalloc(tsize_t s) | |
{ | |
return (NewPtr((size_t) s)); | |
} | |
void | |
_TIFFfree(tdata_t p) | |
{ | |
DisposePtr(p); | |
} | |
tdata_t | |
_TIFFrealloc(tdata_t p, tsize_t s) | |
{ | |
Ptr n = p; | |
SetPtrSize(p, (size_t) s); | |
if (MemError() && (n = NewPtr((size_t) s)) != NULL) { | |
BlockMove(p, n, GetPtrSize(p)); | |
DisposePtr(p); | |
} | |
return ((tdata_t) n); | |
} | |
static void | |
appleWarningHandler(const char* module, const char* fmt, va_list ap) | |
{ | |
if (module != NULL) | |
fprintf(stderr, "%s: ", module); | |
fprintf(stderr, "Warning, "); | |
vfprintf(stderr, fmt, ap); | |
fprintf(stderr, ".\n"); | |
} | |
TIFFErrorHandler _TIFFwarningHandler = appleWarningHandler; | |
static void | |
appleErrorHandler(const char* module, const char* fmt, va_list ap) | |
{ | |
if (module != NULL) | |
fprintf(stderr, "%s: ", module); | |
vfprintf(stderr, fmt, ap); | |
fprintf(stderr, ".\n"); | |
} | |
TIFFErrorHandler _TIFFerrorHandler = appleErrorHandler; |