src/tiff/libtiff/tif_win32.c

/* $Id$ */

/*
 * 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 Win32-specific Routines.  Adapted from tif_unix.c 4/5/95 by
 * Scott Wagner (wagner@itek.com), Itek Graphix, Rochester, NY USA
 */
#include "tiffiop.h"

#include <windows.h>

/* This define is missing from VC6 headers. */
#ifndef INVALID_SET_FILE_POINTER
#define INVALID_SET_FILE_POINTER ((DWORD)-1)
#endif

static tmsize_t
_tiffReadProc(thandle_t fd, void* buf, tmsize_t size)
{
	/* tmsize_t is 64bit on 64bit systems, but the WinAPI ReadFile takes
	 * 32bit sizes, so we loop through the data in suitable 32bit sized
	 * chunks */
	uint8* ma;
	uint64 mb;
	DWORD n;
	DWORD o;
	tmsize_t p;
	ma=(uint8*)buf;
	mb=size;
	p=0;
	while (mb>0)
	{
		n=0x80000000UL;
		if ((uint64)n>mb)
			n=(DWORD)mb;
		if (!ReadFile(fd,(LPVOID)ma,n,&o,NULL))
			return(0);
		ma+=o;
		mb-=o;
		p+=o;
		if (o!=n)
			break;
	}
	return(p);
}

static tmsize_t
_tiffWriteProc(thandle_t fd, void* buf, tmsize_t size)
{
	/* tmsize_t is 64bit on 64bit systems, but the WinAPI WriteFile takes
	 * 32bit sizes, so we loop through the data in suitable 32bit sized
	 * chunks */
	uint8* ma;
	uint64 mb;
	DWORD n;
	DWORD o;
	tmsize_t p;
	ma=(uint8*)buf;
	mb=size;
	p=0;
	while (mb>0)
	{
		n=0x80000000UL;
		if ((uint64)n>mb)
			n=(DWORD)mb;
		if (!WriteFile(fd,(LPVOID)ma,n,&o,NULL))
			return(0);
		ma+=o;
		mb-=o;
		p+=o;
		if (o!=n)
			break;
	}
	return(p);
}

static uint64
_tiffSeekProc(thandle_t fd, uint64 off, int whence)
{
	LARGE_INTEGER offli;
	DWORD dwMoveMethod;
	offli.QuadPart = off;
	switch(whence)
	{
		case SEEK_SET:
			dwMoveMethod = FILE_BEGIN;
			break;
		case SEEK_CUR:
			dwMoveMethod = FILE_CURRENT;
			break;
		case SEEK_END:
			dwMoveMethod = FILE_END;
			break;
		default:
			dwMoveMethod = FILE_BEGIN;
			break;
	}
	offli.LowPart=SetFilePointer(fd,offli.LowPart,&offli.HighPart,dwMoveMethod);
	if ((offli.LowPart==INVALID_SET_FILE_POINTER)&&(GetLastError()!=NO_ERROR))
		offli.QuadPart=0;
	return(offli.QuadPart);
}

static int
_tiffCloseProc(thandle_t fd)
{
	return (CloseHandle(fd) ? 0 : -1);
}

static uint64
_tiffSizeProc(thandle_t fd)
{
	ULARGE_INTEGER m;
	m.LowPart=GetFileSize(fd,&m.HighPart);
	return(m.QuadPart);
}

static int
_tiffDummyMapProc(thandle_t fd, void** pbase, toff_t* psize)
{
	(void) fd;
	(void) pbase;
	(void) psize;
	return (0);
}

/*
 * From "Hermann Josef Hill" <lhill@rhein-zeitung.de>:
 *
 * Windows uses both a handle and a pointer for file mapping,
 * but according to the SDK documentation and Richter's book
 * "Advanced Windows Programming" it is safe to free the handle
 * after obtaining the file mapping pointer
 *
 * This removes a nasty OS dependency and cures a problem
 * with Visual C++ 5.0
 */
static int
_tiffMapProc(thandle_t fd, void** pbase, toff_t* psize)
{
	uint64 size;
	tmsize_t sizem;
	HANDLE hMapFile;

	size = _tiffSizeProc(fd);
	sizem = (tmsize_t)size;
	if ((uint64)sizem!=size)
		return (0);

	/* By passing in 0 for the maximum file size, it specifies that we
	   create a file mapping object for the full file size. */
	hMapFile = CreateFileMapping(fd, NULL, PAGE_READONLY, 0, 0, NULL);
	if (hMapFile == NULL)
		return (0);
	*pbase = MapViewOfFile(hMapFile, FILE_MAP_READ, 0, 0, 0);
	CloseHandle(hMapFile);
	if (*pbase == NULL)
		return (0);
	*psize = size;
	return(1);
}

static void
_tiffDummyUnmapProc(thandle_t fd, void* base, toff_t size)
{
	(void) fd;
	(void) base;
	(void) size;
}

static void
_tiffUnmapProc(thandle_t fd, void* base, toff_t size)
{
	(void) fd;
	(void) size;
	UnmapViewOfFile(base);
}

/*
 * Open a TIFF file descriptor for read/writing.
 * Note that TIFFFdOpen and TIFFOpen recognise the character 'u' in the mode
 * string, which forces the file to be opened unmapped.
 */
TIFF*
TIFFFdOpen(int ifd, const char* name, const char* mode)
{
	TIFF* tif;
	int fSuppressMap;
	int m;
	fSuppressMap=0;
	for (m=0; mode[m]!=0; m++)
	{
		if (mode[m]=='u')
		{
			fSuppressMap=1;
			break;
		}
	}
	tif = TIFFClientOpen(name, mode, (thandle_t)ifd,
			_tiffReadProc, _tiffWriteProc,
			_tiffSeekProc, _tiffCloseProc, _tiffSizeProc,
			fSuppressMap ? _tiffDummyMapProc : _tiffMapProc,
			fSuppressMap ? _tiffDummyUnmapProc : _tiffUnmapProc);
	if (tif)
		tif->tif_fd = ifd;
	return (tif);
}

#ifndef _WIN32_WCE

/*
 * Open a TIFF file for read/writing.
 */
TIFF*
TIFFOpen(const char* name, const char* mode)
{
	static const char module[] = "TIFFOpen";
	thandle_t fd;
	int m;
	DWORD dwMode;
	TIFF* tif;

	m = _TIFFgetMode(mode, module);

	switch(m) {
		case O_RDONLY:			dwMode = OPEN_EXISTING; break;
		case O_RDWR:			dwMode = OPEN_ALWAYS;   break;
		case O_RDWR|O_CREAT:		dwMode = OPEN_ALWAYS;   break;
		case O_RDWR|O_TRUNC:		dwMode = CREATE_ALWAYS; break;
		case O_RDWR|O_CREAT|O_TRUNC:	dwMode = CREATE_ALWAYS; break;
		default:			return ((TIFF*)0);
	}

	fd = (thandle_t)CreateFileA(name,
		(m == O_RDONLY)?GENERIC_READ:(GENERIC_READ | GENERIC_WRITE),
		FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, dwMode,
		(m == O_RDONLY)?FILE_ATTRIBUTE_READONLY:FILE_ATTRIBUTE_NORMAL,
		NULL);
	if (fd == INVALID_HANDLE_VALUE) {
		TIFFErrorExt(0, module, "%s: Cannot open", name);
		return ((TIFF *)0);
	}

	tif = TIFFFdOpen((int)fd, name, mode);
	if(!tif)
		CloseHandle(fd);
	return tif;
}

/*
 * Open a TIFF file with a Unicode filename, for read/writing.
 */
TIFF*
TIFFOpenW(const wchar_t* name, const char* mode)
{
	static const char module[] = "TIFFOpenW";
	thandle_t fd;
	int m;
	DWORD dwMode;
	int mbsize;
	char *mbname;
	TIFF *tif;

	m = _TIFFgetMode(mode, module);

	switch(m) {
		case O_RDONLY:			dwMode = OPEN_EXISTING; break;
		case O_RDWR:			dwMode = OPEN_ALWAYS;   break;
		case O_RDWR|O_CREAT:		dwMode = OPEN_ALWAYS;   break;
		case O_RDWR|O_TRUNC:		dwMode = CREATE_ALWAYS; break;
		case O_RDWR|O_CREAT|O_TRUNC:	dwMode = CREATE_ALWAYS; break;
		default:			return ((TIFF*)0);
	}

	fd = (thandle_t)CreateFileW(name,
		(m == O_RDONLY)?GENERIC_READ:(GENERIC_READ|GENERIC_WRITE),
		FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, dwMode,
		(m == O_RDONLY)?FILE_ATTRIBUTE_READONLY:FILE_ATTRIBUTE_NORMAL,
		NULL);
	if (fd == INVALID_HANDLE_VALUE) {
		TIFFErrorExt(0, module, "%S: Cannot open", name);
		return ((TIFF *)0);
	}

	mbname = NULL;
	mbsize = WideCharToMultiByte(CP_ACP, 0, name, -1, NULL, 0, NULL, NULL);
	if (mbsize > 0) {
		mbname = (char *)_TIFFmalloc(mbsize);
		if (!mbname) {
			TIFFErrorExt(0, module,
			"Can't allocate space for filename conversion buffer");
			return ((TIFF*)0);
		}

		WideCharToMultiByte(CP_ACP, 0, name, -1, mbname, mbsize,
				    NULL, NULL);
	}

	tif = TIFFFdOpen((int)fd,
			 (mbname != NULL) ? mbname : "<unknown>", mode);
	if(!tif)
		CloseHandle(fd);

	_TIFFfree(mbname);

	return tif;
}

#endif /* ndef _WIN32_WCE */

void*
_TIFFmalloc(tmsize_t s)
{
	return (malloc((size_t) s));
}

void
_TIFFfree(void* p)
{
	free(p);
}

void*
_TIFFrealloc(void* p, tmsize_t s)
{
	return (realloc(p, (size_t) s));
}

void
_TIFFmemset(void* p, int v, tmsize_t c)
{
	memset(p, v, (size_t) c);
}

void
_TIFFmemcpy(void* d, const void* s, tmsize_t c)
{
	memcpy(d, s, (size_t) c);
}

int
_TIFFmemcmp(const void* p1, const void* p2, tmsize_t c)
{
	return (memcmp(p1, p2, (size_t) c));
}

#ifndef _WIN32_WCE

#if defined(_MSC_VER) && (_MSC_VER < 1500)
#  define vsnprintf _vsnprintf
#endif

static void
Win32WarningHandler(const char* module, const char* fmt, va_list ap)
{
#ifndef TIF_PLATFORM_CONSOLE
	char *szTitle;
	char *szTmp;
	const char *szTitleText = "%s Warning";
	const char *szDefaultModule = "LIBTIFF";
	const char *szTmpModule = (module == NULL) ? szDefaultModule : module;
	SIZE_T nBufSize = (strlen(szTmpModule) +
			strlen(szTitleText) + strlen(fmt) + 256)*sizeof(char);

	if ((szTitle = (char*)LocalAlloc(LMEM_FIXED, nBufSize)) == NULL)
		return;
	sprintf(szTitle, szTitleText, szTmpModule);
	szTmp = szTitle + (strlen(szTitle)+2)*sizeof(char);
	vsnprintf(szTmp, nBufSize-(strlen(szTitle)+2)*sizeof(char), fmt, ap);
	MessageBoxA(GetFocus(), szTmp, szTitle, MB_OK | MB_ICONINFORMATION);
	LocalFree(szTitle);

	return;
#else
	if (module != NULL)
		fprintf(stderr, "%s: ", module);
	fprintf(stderr, "Warning, ");
	vfprintf(stderr, fmt, ap);
	fprintf(stderr, ".\n");
#endif
}
TIFFErrorHandler _TIFFwarningHandler = Win32WarningHandler;

static void
Win32ErrorHandler(const char *module, const char *fmt, va_list ap)
{
#ifndef TIF_PLATFORM_CONSOLE
	char *szTitle;
	char *szTmp;
	const char *szTitleText = "%s Error";
	const char *szDefaultModule = "LIBTIFF";
	const char *szTmpModule = (module == NULL) ? szDefaultModule : module;
	SIZE_T nBufSize = (strlen(szTmpModule) +
			strlen(szTitleText) + strlen(fmt) + 256)*sizeof(char);

	if ((szTitle = (char*)LocalAlloc(LMEM_FIXED, nBufSize)) == NULL)
		return;
	sprintf(szTitle, szTitleText, szTmpModule);
	szTmp = szTitle + (strlen(szTitle)+2)*sizeof(char);
	vsnprintf(szTmp, nBufSize-(strlen(szTitle)+2)*sizeof(char), fmt, ap);
	MessageBoxA(GetFocus(), szTmp, szTitle, MB_OK | MB_ICONEXCLAMATION);
	LocalFree(szTitle);
	return;
#else
	if (module != NULL)
		fprintf(stderr, "%s: ", module);
	vfprintf(stderr, fmt, ap);
	fprintf(stderr, ".\n");
#endif
}
TIFFErrorHandler _TIFFerrorHandler = Win32ErrorHandler;

#endif /* ndef _WIN32_WCE */

/* vim: set ts=8 sts=8 sw=8 noet: */
/*
 * Local Variables:
 * mode: c
 * c-basic-offset: 8
 * fill-column: 78
 * End:
 */
Commit	Line	Data
	1	/* $Id$ */
	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 Win32-specific Routines. Adapted from tif_unix.c 4/5/95 by
	29	* Scott Wagner (wagner@itek.com), Itek Graphix, Rochester, NY USA
	30	*/
	31	#include "tiffiop.h"
	32
	33	#include <windows.h>
	34
	35	/* This define is missing from VC6 headers. */
	36	#ifndef INVALID_SET_FILE_POINTER
	37	#define INVALID_SET_FILE_POINTER ((DWORD)-1)
	38	#endif
	39
	40	static tmsize_t
	41	_tiffReadProc(thandle_t fd, void* buf, tmsize_t size)
	42	{
	43	/* tmsize_t is 64bit on 64bit systems, but the WinAPI ReadFile takes
	44	* 32bit sizes, so we loop through the data in suitable 32bit sized
	45	* chunks */
	46	uint8* ma;
	47	uint64 mb;
	48	DWORD n;
	49	DWORD o;
	50	tmsize_t p;
	51	ma=(uint8*)buf;
	52	mb=size;
	53	p=0;
	54	while (mb>0)
	55	{
	56	n=0x80000000UL;
	57	if ((uint64)n>mb)
	58	n=(DWORD)mb;
	59	if (!ReadFile(fd,(LPVOID)ma,n,&o,NULL))
	60	return(0);
	61	ma+=o;
	62	mb-=o;
	63	p+=o;
	64	if (o!=n)
	65	break;
	66	}
	67	return(p);
	68	}
	69
	70	static tmsize_t
	71	_tiffWriteProc(thandle_t fd, void* buf, tmsize_t size)
	72	{
	73	/* tmsize_t is 64bit on 64bit systems, but the WinAPI WriteFile takes
	74	* 32bit sizes, so we loop through the data in suitable 32bit sized
	75	* chunks */
	76	uint8* ma;
	77	uint64 mb;
	78	DWORD n;
	79	DWORD o;
	80	tmsize_t p;
	81	ma=(uint8*)buf;
	82	mb=size;
	83	p=0;
	84	while (mb>0)
	85	{
	86	n=0x80000000UL;
	87	if ((uint64)n>mb)
	88	n=(DWORD)mb;
	89	if (!WriteFile(fd,(LPVOID)ma,n,&o,NULL))
	90	return(0);
	91	ma+=o;
	92	mb-=o;
	93	p+=o;
	94	if (o!=n)
	95	break;
	96	}
	97	return(p);
	98	}
	99
	100	static uint64
	101	_tiffSeekProc(thandle_t fd, uint64 off, int whence)
	102	{
	103	LARGE_INTEGER offli;
	104	DWORD dwMoveMethod;
	105	offli.QuadPart = off;
	106	switch(whence)
	107	{
	108	case SEEK_SET:
	109	dwMoveMethod = FILE_BEGIN;
	110	break;
	111	case SEEK_CUR:
	112	dwMoveMethod = FILE_CURRENT;
	113	break;
	114	case SEEK_END:
	115	dwMoveMethod = FILE_END;
	116	break;
	117	default:
	118	dwMoveMethod = FILE_BEGIN;
	119	break;
	120	}
	121	offli.LowPart=SetFilePointer(fd,offli.LowPart,&offli.HighPart,dwMoveMethod);
	122	if ((offli.LowPart==INVALID_SET_FILE_POINTER)&&(GetLastError()!=NO_ERROR))
	123	offli.QuadPart=0;
	124	return(offli.QuadPart);
	125	}
	126
	127	static int
	128	_tiffCloseProc(thandle_t fd)
	129	{
	130	return (CloseHandle(fd) ? 0 : -1);
	131	}
	132
	133	static uint64
	134	_tiffSizeProc(thandle_t fd)
	135	{
	136	ULARGE_INTEGER m;
	137	m.LowPart=GetFileSize(fd,&m.HighPart);
	138	return(m.QuadPart);
	139	}
	140
	141	static int
	142	_tiffDummyMapProc(thandle_t fd, void** pbase, toff_t* psize)
	143	{
	144	(void) fd;
	145	(void) pbase;
	146	(void) psize;
	147	return (0);
	148	}
	149
	150	/*
	151	* From "Hermann Josef Hill" <lhill@rhein-zeitung.de>:
	152	*
	153	* Windows uses both a handle and a pointer for file mapping,
	154	* but according to the SDK documentation and Richter's book
	155	* "Advanced Windows Programming" it is safe to free the handle
	156	* after obtaining the file mapping pointer
	157	*
	158	* This removes a nasty OS dependency and cures a problem
	159	* with Visual C++ 5.0
	160	*/
	161	static int
	162	_tiffMapProc(thandle_t fd, void** pbase, toff_t* psize)
	163	{
	164	uint64 size;
	165	tmsize_t sizem;
	166	HANDLE hMapFile;
	167
	168	size = _tiffSizeProc(fd);
	169	sizem = (tmsize_t)size;
	170	if ((uint64)sizem!=size)
	171	return (0);
	172
	173	/* By passing in 0 for the maximum file size, it specifies that we
	174	create a file mapping object for the full file size. */
	175	hMapFile = CreateFileMapping(fd, NULL, PAGE_READONLY, 0, 0, NULL);
	176	if (hMapFile == NULL)
	177	return (0);
	178	*pbase = MapViewOfFile(hMapFile, FILE_MAP_READ, 0, 0, 0);
	179	CloseHandle(hMapFile);
	180	if (*pbase == NULL)
	181	return (0);
	182	*psize = size;
	183	return(1);
	184	}
	185
	186	static void
	187	_tiffDummyUnmapProc(thandle_t fd, void* base, toff_t size)
	188	{
	189	(void) fd;
	190	(void) base;
	191	(void) size;
	192	}
	193
	194	static void
	195	_tiffUnmapProc(thandle_t fd, void* base, toff_t size)
	196	{
	197	(void) fd;
	198	(void) size;
	199	UnmapViewOfFile(base);
	200	}
	201
	202	/*
	203	* Open a TIFF file descriptor for read/writing.
	204	* Note that TIFFFdOpen and TIFFOpen recognise the character 'u' in the mode
	205	* string, which forces the file to be opened unmapped.
	206	*/
	207	TIFF*
	208	TIFFFdOpen(int ifd, const char* name, const char* mode)
	209	{
	210	TIFF* tif;
	211	int fSuppressMap;
	212	int m;
	213	fSuppressMap=0;
	214	for (m=0; mode[m]!=0; m++)
	215	{
	216	if (mode[m]=='u')
	217	{
	218	fSuppressMap=1;
	219	break;
	220	}
	221	}
	222	tif = TIFFClientOpen(name, mode, (thandle_t)ifd,
	223	_tiffReadProc, _tiffWriteProc,
	224	_tiffSeekProc, _tiffCloseProc, _tiffSizeProc,
	225	fSuppressMap ? _tiffDummyMapProc : _tiffMapProc,
	226	fSuppressMap ? _tiffDummyUnmapProc : _tiffUnmapProc);
	227	if (tif)
	228	tif->tif_fd = ifd;
	229	return (tif);
	230	}
	231
	232	#ifndef _WIN32_WCE
	233
	234	/*
	235	* Open a TIFF file for read/writing.
	236	*/
	237	TIFF*
	238	TIFFOpen(const char* name, const char* mode)
	239	{
	240	static const char module[] = "TIFFOpen";
	241	thandle_t fd;
	242	int m;
	243	DWORD dwMode;
	244	TIFF* tif;
	245
	246	m = _TIFFgetMode(mode, module);
	247
	248	switch(m) {
	249	case O_RDONLY: dwMode = OPEN_EXISTING; break;
	250	case O_RDWR: dwMode = OPEN_ALWAYS; break;
	251	case O_RDWR\|O_CREAT: dwMode = OPEN_ALWAYS; break;
	252	case O_RDWR\|O_TRUNC: dwMode = CREATE_ALWAYS; break;
	253	case O_RDWR\|O_CREAT\|O_TRUNC: dwMode = CREATE_ALWAYS; break;
	254	default: return ((TIFF*)0);
	255	}
	256
	257	fd = (thandle_t)CreateFileA(name,
	258	(m == O_RDONLY)?GENERIC_READ:(GENERIC_READ \| GENERIC_WRITE),
	259	FILE_SHARE_READ \| FILE_SHARE_WRITE, NULL, dwMode,
	260	(m == O_RDONLY)?FILE_ATTRIBUTE_READONLY:FILE_ATTRIBUTE_NORMAL,
	261	NULL);
	262	if (fd == INVALID_HANDLE_VALUE) {
	263	TIFFErrorExt(0, module, "%s: Cannot open", name);
	264	return ((TIFF *)0);
	265	}
	266
	267	tif = TIFFFdOpen((int)fd, name, mode);
	268	if(!tif)
	269	CloseHandle(fd);
	270	return tif;
	271	}
	272
	273	/*
	274	* Open a TIFF file with a Unicode filename, for read/writing.
	275	*/
	276	TIFF*
	277	TIFFOpenW(const wchar_t* name, const char* mode)
	278	{
	279	static const char module[] = "TIFFOpenW";
	280	thandle_t fd;
	281	int m;
	282	DWORD dwMode;
	283	int mbsize;
	284	char *mbname;
	285	TIFF *tif;
	286
	287	m = _TIFFgetMode(mode, module);
	288
	289	switch(m) {
	290	case O_RDONLY: dwMode = OPEN_EXISTING; break;
	291	case O_RDWR: dwMode = OPEN_ALWAYS; break;
	292	case O_RDWR\|O_CREAT: dwMode = OPEN_ALWAYS; break;
	293	case O_RDWR\|O_TRUNC: dwMode = CREATE_ALWAYS; break;
	294	case O_RDWR\|O_CREAT\|O_TRUNC: dwMode = CREATE_ALWAYS; break;
	295	default: return ((TIFF*)0);
	296	}
	297
	298	fd = (thandle_t)CreateFileW(name,
	299	(m == O_RDONLY)?GENERIC_READ:(GENERIC_READ\|GENERIC_WRITE),
	300	FILE_SHARE_READ \| FILE_SHARE_WRITE, NULL, dwMode,
	301	(m == O_RDONLY)?FILE_ATTRIBUTE_READONLY:FILE_ATTRIBUTE_NORMAL,
	302	NULL);
	303	if (fd == INVALID_HANDLE_VALUE) {
	304	TIFFErrorExt(0, module, "%S: Cannot open", name);
	305	return ((TIFF *)0);
	306	}
	307
	308	mbname = NULL;
	309	mbsize = WideCharToMultiByte(CP_ACP, 0, name, -1, NULL, 0, NULL, NULL);
	310	if (mbsize > 0) {
	311	mbname = (char *)_TIFFmalloc(mbsize);
	312	if (!mbname) {
	313	TIFFErrorExt(0, module,
	314	"Can't allocate space for filename conversion buffer");
	315	return ((TIFF*)0);
	316	}
	317
	318	WideCharToMultiByte(CP_ACP, 0, name, -1, mbname, mbsize,
	319	NULL, NULL);
	320	}
	321
	322	tif = TIFFFdOpen((int)fd,
	323	(mbname != NULL) ? mbname : "<unknown>", mode);
	324	if(!tif)
	325	CloseHandle(fd);
	326
	327	_TIFFfree(mbname);
	328
	329	return tif;
	330	}
	331
	332	#endif /* ndef _WIN32_WCE */
	333
	334	void*
	335	_TIFFmalloc(tmsize_t s)
	336	{
	337	return (malloc((size_t) s));
	338	}
	339
	340	void
	341	_TIFFfree(void* p)
	342	{
	343	free(p);
	344	}
	345
	346	void*
	347	_TIFFrealloc(void* p, tmsize_t s)
	348	{
	349	return (realloc(p, (size_t) s));
	350	}
	351
	352	void
	353	_TIFFmemset(void* p, int v, tmsize_t c)
	354	{
	355	memset(p, v, (size_t) c);
	356	}
	357
	358	void
	359	_TIFFmemcpy(void* d, const void* s, tmsize_t c)
	360	{
	361	memcpy(d, s, (size_t) c);
	362	}
	363
	364	int
	365	_TIFFmemcmp(const void* p1, const void* p2, tmsize_t c)
	366	{
	367	return (memcmp(p1, p2, (size_t) c));
	368	}
	369
	370	#ifndef _WIN32_WCE
	371
	372	#if defined(_MSC_VER) && (_MSC_VER < 1500)
	373	# define vsnprintf _vsnprintf
	374	#endif
	375
	376	static void
	377	Win32WarningHandler(const char* module, const char* fmt, va_list ap)
	378	{
	379	#ifndef TIF_PLATFORM_CONSOLE
	380	char *szTitle;
	381	char *szTmp;
	382	const char *szTitleText = "%s Warning";
	383	const char *szDefaultModule = "LIBTIFF";
	384	const char *szTmpModule = (module == NULL) ? szDefaultModule : module;
	385	SIZE_T nBufSize = (strlen(szTmpModule) +
	386	strlen(szTitleText) + strlen(fmt) + 256)*sizeof(char);
	387
	388	if ((szTitle = (char*)LocalAlloc(LMEM_FIXED, nBufSize)) == NULL)
	389	return;
	390	sprintf(szTitle, szTitleText, szTmpModule);
	391	szTmp = szTitle + (strlen(szTitle)+2)*sizeof(char);
	392	vsnprintf(szTmp, nBufSize-(strlen(szTitle)+2)*sizeof(char), fmt, ap);
	393	MessageBoxA(GetFocus(), szTmp, szTitle, MB_OK \| MB_ICONINFORMATION);
	394	LocalFree(szTitle);
	395
	396	return;
	397	#else
	398	if (module != NULL)
	399	fprintf(stderr, "%s: ", module);
	400	fprintf(stderr, "Warning, ");
	401	vfprintf(stderr, fmt, ap);
	402	fprintf(stderr, ".\n");
	403	#endif
	404	}
	405	TIFFErrorHandler _TIFFwarningHandler = Win32WarningHandler;
	406
	407	static void
	408	Win32ErrorHandler(const char module, const char fmt, va_list ap)
	409	{
	410	#ifndef TIF_PLATFORM_CONSOLE
	411	char *szTitle;
	412	char *szTmp;
	413	const char *szTitleText = "%s Error";
	414	const char *szDefaultModule = "LIBTIFF";
	415	const char *szTmpModule = (module == NULL) ? szDefaultModule : module;
	416	SIZE_T nBufSize = (strlen(szTmpModule) +
	417	strlen(szTitleText) + strlen(fmt) + 256)*sizeof(char);
	418
	419	if ((szTitle = (char*)LocalAlloc(LMEM_FIXED, nBufSize)) == NULL)
	420	return;
	421	sprintf(szTitle, szTitleText, szTmpModule);
	422	szTmp = szTitle + (strlen(szTitle)+2)*sizeof(char);
	423	vsnprintf(szTmp, nBufSize-(strlen(szTitle)+2)*sizeof(char), fmt, ap);
	424	MessageBoxA(GetFocus(), szTmp, szTitle, MB_OK \| MB_ICONEXCLAMATION);
	425	LocalFree(szTitle);
	426	return;
	427	#else
	428	if (module != NULL)
	429	fprintf(stderr, "%s: ", module);
	430	vfprintf(stderr, fmt, ap);
	431	fprintf(stderr, ".\n");
	432	#endif
	433	}
	434	TIFFErrorHandler _TIFFerrorHandler = Win32ErrorHandler;
	435
	436	#endif /* ndef _WIN32_WCE */
	437
	438	/* vim: set ts=8 sts=8 sw=8 noet: */
	439	/*
	440	* Local Variables:
	441	* mode: c
	442	* c-basic-offset: 8
	443	* fill-column: 78
	444	* End:
	445	*/