| /* $Header: /cvsroot/freeimage/FreeImage/Source/LibTIFF/tif_apple.c,v 1.27 2009/09/06 13:11:26 drolon 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; |