src/tiff/libtiff/tif_apple.c

/* $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;
Commit	Line	Data
	1	/* $Header: /cvs/maptools/cvsroot/libtiff/libtiff/tif_apple.c,v 1.3 2005/12/21 12:23:13 joris Exp $ */
	2
	3	/*
	4	* Copyright (c) 1988-1997 Sam Leffler
	5	* Copyright (c) 1991-1997 Silicon Graphics, Inc.
	6	*
	7	* Permission to use, copy, modify, distribute, and sell this software and
	8	* its documentation for any purpose is hereby granted without fee, provided
	9	* that (i) the above copyright notices and this permission notice appear in
	10	* all copies of the software and related documentation, and (ii) the names of
	11	* Sam Leffler and Silicon Graphics may not be used in any advertising or
	12	* publicity relating to the software without the specific, prior written
	13	* permission of Sam Leffler and Silicon Graphics.
	14	*
	15	* THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
	16	* EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
	17	* WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
	18	*
	19	* IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
	20	* ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
	21	* OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
	22	* WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
	23	* LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
	24	* OF THIS SOFTWARE.
	25	*/
	26
	27	/*
	28	* TIFF Library Macintosh-specific routines.
	29	*
	30	* These routines use only Toolbox and high-level File Manager traps.
	31	* They make no calls to the THINK C "unix" compatibility library. Also,
	32	* malloc is not used directly but it is still referenced internally by
	33	* the ANSI library in rare cases. Heap fragmentation by the malloc ring
	34	* buffer is therefore minimized.
	35	*
	36	* O_RDONLY and O_RDWR are treated identically here. The tif_mode flag is
	37	* checked in TIFFWriteCheck().
	38	*
	39	* Create below fills in a blank creator signature and sets the file type
	40	* to 'TIFF'. It is much better for the application to do this by Create'ing
	41	* the file first and TIFFOpen'ing it later.
	42	* ---------
	43	* This code has been "Carbonized", and may not work with older MacOS versions.
	44	* If so, grab the tif_apple.c out of an older libtiff distribution, like
	45	* 3.5.5 from www.libtiff.org.
	46	*/
	47
	48	#include "tiffiop.h"
	49	#include <Errors.h>
	50	#include <Files.h>
	51	#include <Memory.h>
	52	#include <Script.h>
	53
	54	#if defined(__PPCC__) \|\| defined(__SC__) \|\| defined(__MRC__) \|\| defined(applec)
	55	#define CtoPstr c2pstr
	56	#endif
	57
	58	static tsize_t
	59	_tiffReadProc(thandle_t fd, tdata_t buf, tsize_t size)
	60	{
	61	return (FSRead((short) fd, (long) &size, (char) buf) == noErr ?
	62	size : (tsize_t) -1);
	63	}
	64
	65	static tsize_t
	66	_tiffWriteProc(thandle_t fd, tdata_t buf, tsize_t size)
	67	{
	68	return (FSWrite((short) fd, (long) &size, (char) buf) == noErr ?
	69	size : (tsize_t) -1);
	70	}
	71
	72	static toff_t
	73	_tiffSeekProc(thandle_t fd, toff_t off, int whence)
	74	{
	75	long fpos, size;
	76
	77	if (GetEOF((short) fd, &size) != noErr)
	78	return EOF;
	79	(void) GetFPos((short) fd, &fpos);
	80
	81	switch (whence) {
	82	case SEEK_CUR:
	83	if (off + fpos > size)
	84	SetEOF((short) fd, off + fpos);
	85	if (SetFPos((short) fd, fsFromMark, off) != noErr)
	86	return EOF;
	87	break;
	88	case SEEK_END:
	89	if (off > 0)
	90	SetEOF((short) fd, off + size);
	91	if (SetFPos((short) fd, fsFromStart, off + size) != noErr)
	92	return EOF;
	93	break;
	94	case SEEK_SET:
	95	if (off > size)
	96	SetEOF((short) fd, off);
	97	if (SetFPos((short) fd, fsFromStart, off) != noErr)
	98	return EOF;
	99	break;
	100	}
	101
	102	return (toff_t)(GetFPos((short) fd, &fpos) == noErr ? fpos : EOF);
	103	}
	104
	105	static int
	106	_tiffMapProc(thandle_t fd, tdata_t* pbase, toff_t* psize)
	107	{
	108	return (0);
	109	}
	110
	111	static void
	112	_tiffUnmapProc(thandle_t fd, tdata_t base, toff_t size)
	113	{
	114	}
	115
	116	static int
	117	_tiffCloseProc(thandle_t fd)
	118	{
	119	return (FSClose((short) fd));
	120	}
	121
	122	static toff_t
	123	_tiffSizeProc(thandle_t fd)
	124	{
	125	long size;
	126
	127	if (GetEOF((short) fd, &size) != noErr) {
	128	TIFFErrorExt(fd, "_tiffSizeProc", "%s: Cannot get file size");
	129	return (-1L);
	130	}
	131	return ((toff_t) size);
	132	}
	133
	134	/*
	135	* Open a TIFF file descriptor for read/writing.
	136	*/
	137	TIFF*
	138	TIFFFdOpen(int fd, const char* name, const char* mode)
	139	{
	140	TIFF* tif;
	141
	142	tif = TIFFClientOpen(name, mode, (thandle_t) fd,
	143	_tiffReadProc, _tiffWriteProc, _tiffSeekProc, _tiffCloseProc,
	144	_tiffSizeProc, _tiffMapProc, _tiffUnmapProc);
	145	if (tif)
	146	tif->tif_fd = fd;
	147	return (tif);
	148	}
	149
	150	static void ourc2pstr( char* inString )
	151	{
	152	int sLen = strlen( inString );
	153	BlockMoveData( inString, &inString[1], sLen );
	154	inString[0] = sLen;
	155	}
	156
	157	/*
	158	* Open a TIFF file for read/writing.
	159	*/
	160	TIFF*
	161	TIFFOpen(const char* name, const char* mode)
	162	{
	163	static const char module[] = "TIFFOpen";
	164	Str255 pname;
	165	FInfo finfo;
	166	short fref;
	167	OSErr err;
	168	FSSpec fSpec;
	169
	170	strcpy((char*) pname, name);
	171	ourc2pstr((char*) pname);
	172
	173	err = FSMakeFSSpec( 0, 0, pname, &fSpec );
	174
	175	switch (_TIFFgetMode(mode, module)) {
	176	default:
	177	return ((TIFF*) 0);
	178	case O_RDWR \| O_CREAT \| O_TRUNC:
	179	if (FSpGetFInfo(&fSpec, &finfo) == noErr)
	180	FSpDelete(&fSpec);
	181	/* fall through */
	182	case O_RDWR \| O_CREAT:
	183	if ((err = FSpGetFInfo(&fSpec, &finfo)) == fnfErr) {
	184	if (FSpCreate(&fSpec, ' ', 'TIFF', smSystemScript) != noErr)
	185	goto badCreate;
	186	if (FSpOpenDF(&fSpec, fsRdWrPerm, &fref) != noErr)
	187	goto badOpen;
	188	} else if (err == noErr) {
	189	if (FSpOpenDF(&fSpec, fsRdWrPerm, &fref) != noErr)
	190	goto badOpen;
	191	} else
	192	goto badOpen;
	193	break;
	194	case O_RDONLY:
	195	if (FSpOpenDF(&fSpec, fsRdPerm, &fref) != noErr)
	196	goto badOpen;
	197	break;
	198	case O_RDWR:
	199	if (FSpOpenDF(&fSpec, fsRdWrPerm, &fref) != noErr)
	200	goto badOpen;
	201	break;
	202	}
	203	return (TIFFFdOpen((int) fref, name, mode));
	204	badCreate:
	205	TIFFErrorExt(0, module, "%s: Cannot create", name);
	206	return ((TIFF*) 0);
	207	badOpen:
	208	TIFFErrorExt(0, module, "%s: Cannot open", name);
	209	return ((TIFF*) 0);
	210	}
	211
	212	void
	213	_TIFFmemset(tdata_t p, int v, tsize_t c)
	214	{
	215	memset(p, v, (size_t) c);
	216	}
	217
	218	void
	219	_TIFFmemcpy(tdata_t d, const tdata_t s, tsize_t c)
	220	{
	221	memcpy(d, s, (size_t) c);
	222	}
	223
	224	int
	225	_TIFFmemcmp(const tdata_t p1, const tdata_t p2, tsize_t c)
	226	{
	227	return (memcmp(p1, p2, (size_t) c));
	228	}
	229
	230	tdata_t
	231	_TIFFmalloc(tsize_t s)
	232	{
	233	return (NewPtr((size_t) s));
	234	}
	235
	236	void
	237	_TIFFfree(tdata_t p)
	238	{
	239	DisposePtr(p);
	240	}
	241
	242	tdata_t
	243	_TIFFrealloc(tdata_t p, tsize_t s)
	244	{
	245	Ptr n = p;
	246
	247	SetPtrSize(p, (size_t) s);
	248	if (MemError() && (n = NewPtr((size_t) s)) != NULL) {
	249	BlockMove(p, n, GetPtrSize(p));
	250	DisposePtr(p);
	251	}
	252	return ((tdata_t) n);
	253	}
	254
	255	static void
	256	appleWarningHandler(const char* module, const char* fmt, va_list ap)
	257	{
	258	if (module != NULL)
	259	fprintf(stderr, "%s: ", module);
	260	fprintf(stderr, "Warning, ");
	261	vfprintf(stderr, fmt, ap);
	262	fprintf(stderr, ".\n");
	263	}
	264	TIFFErrorHandler _TIFFwarningHandler = appleWarningHandler;
	265
	266	static void
	267	appleErrorHandler(const char* module, const char* fmt, va_list ap)
	268	{
	269	if (module != NULL)
	270	fprintf(stderr, "%s: ", module);
	271	vfprintf(stderr, fmt, ap);
	272	fprintf(stderr, ".\n");
	273	}
	274	TIFFErrorHandler _TIFFerrorHandler = appleErrorHandler;