/* $Header: /cvs/maptools/cvsroot/libtiff/libtiff/Attic/tif_apple.c,v 1.3.2.1 2010-06-08 18:50:41 bfriesen 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;

/*

 * Local Variables:

 * mode: c

 * c-basic-offset: 8

 * fill-column: 78

 * End:

 */