src/tiff/tif_os2.c

/* $Header$ */

/*
 * Copyright (c) 1988-1997 Sam Leffler
 * Copyright (c) 1991-1997 Silicon Graphics, Inc.
 *
 * modifed for use with OS/2 by David Webster
 *
 * 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 OS/2-specific Routines.  Adapted from tif_win32.c 2/16/00 by
 * David Webster (dwebster@bhmi.com), Baldwin, Hackett, and Meeks, Inc., Omaha, NE USA
 */
#define INCL_PM
#define INCL_BASE
#include <os2.h>
#include <stdio.h>
#include <stdlib.h>
#include "tiffiop.h"

/* Some windows datatypes */

typedef ULONG DWORD;
typedef ULONG HANDLE;
typedef PCHAR LPTSTR;
typedef const PCHAR LPCTSTR;
typedef CHAR TCHAR;
#define GlobalAlloc(a,b) malloc(b)
#define LocalAlloc(a,b) malloc(b)
#define GlobalFree(b) free(b)
#define LocalFree(b) free(b)
#define GlobalReAlloc(p, s, t) realloc(p, s)
#define CopyMemory(p, v, s) memcpy(p, v, s)
#define FillMemory(p, c, s) memset(p, c, s)
#define GlobalSize(p) sizeof(p)
#define wsprintf sprintf
#define wvsprintf vsprintf
#define lstrlen strlen

static tsize_t LINKAGEMODE
_tiffReadProc(thandle_t fd, tdata_t buf, tsize_t size)
{
	DWORD dwSizeRead;
	if (!DosRead((HFILE)fd, buf, size, &dwSizeRead))
		return(0);
	return ((tsize_t) dwSizeRead);
}

static tsize_t LINKAGEMODE
_tiffWriteProc(thandle_t fd, tdata_t buf, tsize_t size)
{
	DWORD dwSizeWritten;
	if (!DosWrite((HFILE)fd, buf, size, &dwSizeWritten))
		return(0);
	return ((tsize_t) dwSizeWritten);
}

static toff_t LINKAGEMODE
_tiffSeekProc(thandle_t fd, toff_t off, int whence)
{
	DWORD dwMoveMethod;
    ULONG ibActual;
	switch(whence)
	{
	case 0:
		dwMoveMethod = FILE_BEGIN;
		break;
	case 1:
		dwMoveMethod = FILE_CURRENT;
		break;
	case 2:
		dwMoveMethod = FILE_END;
		break;
	default:
		dwMoveMethod = FILE_BEGIN;
		break;
	}
	DosSetFilePtr((HFILE)fd, off, dwMoveMethod, &ibActual);
 return((toff_t)ibActual);
}

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

static toff_t LINKAGEMODE
_tiffSizeProc(thandle_t fd)
{
   FILESTATUS3    vStatus;

   DosQueryFileInfo((HFILE)fd, FIL_STANDARD, &vStatus, sizeof(FILESTATUS3));
   return (vStatus.cbFile);
}

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

static void LINKAGEMODE
_tiffDummyUnmapProc(thandle_t fd, tdata_t base, toff_t size)
{
}

static void LINKAGEMODE
_tiffUnmapProc(thandle_t fd, tdata_t base, toff_t size)
{
}

/*
 * 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;
	BOOL fSuppressMap = (mode[1] == 'u' || mode[2] == 'u');

	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);
}

/*
 * 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 dwOpenMode;
 DWORD dwOpenFlags;
 DWORD dwAction;
 APIRET ulrc;

	m = _TIFFgetMode(mode, module);

	switch(m)
	{
	case O_RDONLY:
		dwOpenMode = OPEN_ACCESS_READONLY;
		dwOpenFlags = OPEN_ACTION_FAIL_IF_NEW;
		break;
	case O_RDWR:
		dwOpenMode = OPEN_ACCESS_READWRITE;
		dwOpenFlags = OPEN_ACTION_FAIL_IF_NEW;
		break;
	case O_RDWR|O_CREAT:
		dwOpenMode = OPEN_ACCESS_READWRITE;
		dwOpenFlags = OPEN_ACTION_CREATE_IF_NEW;
		break;
	case O_RDWR|O_TRUNC:
		dwOpenMode = OPEN_ACCESS_READWRITE;
		dwOpenFlags = OPEN_ACTION_FAIL_IF_NEW | OPEN_ACTION_OPEN_IF_EXISTS;
		break;
	case O_RDWR|O_CREAT|O_TRUNC:
		dwOpenMode = OPEN_ACCESS_READWRITE;
		dwOpenFlags = OPEN_ACTION_CREATE_IF_NEW | OPEN_ACTION_REPLACE_IF_EXISTS;
		break;
	default:
		return ((TIFF*)0);
	}
 ulrc = DosOpen( name, (HFILE*)&fd, &dwAction, FILE_ARCHIVED|FILE_NORMAL
                ,1000L, dwOpenFlags, dwOpenMode, NULL
               );
	if (fd != NO_ERROR) {
		TIFFError(module, "%s: Cannot open", name);
		return ((TIFF *)0);
	}
	return (TIFFFdOpen((int)fd, name, mode));
}

tdata_t
_TIFFmalloc(tsize_t s)
{
	return ((tdata_t)GlobalAlloc(GMEM_FIXED, s));
}

void
_TIFFfree(tdata_t p)
{
	GlobalFree(p);
	return;
}

tdata_t
_TIFFrealloc(tdata_t p, tsize_t s)
{
	void* pvTmp;
	if ((pvTmp = GlobalReAlloc(p, s, 0)) == NULL) {
		if ((pvTmp = GlobalAlloc(sGMEM_FIXED, s)) != NULL) {
			CopyMemory(pvTmp, p, GlobalSize(p));
			GlobalFree(p);
		}
	}
	return ((tdata_t)pvTmp);
}

void
_TIFFmemset(void* p, int v, tsize_t c)
{
	FillMemory(p, c, (BYTE)v);
}

void
_TIFFmemcpy(void* d, const tdata_t s, tsize_t c)
{
	CopyMemory(d, s, c);
}

int
_TIFFmemcmp(const tdata_t p1, const tdata_t p2, tsize_t c)
{
	register const *pb1 = (const int*)p1;
	register const *pb2 = (const int*)p2;
	register DWORD dwTmp = c;
	register int iTmp;
	for (iTmp = 0; dwTmp-- && !iTmp; iTmp = (int)*pb1++ - (int)*pb2++)
		;
	return (iTmp);
}

static void LINKAGEMODE
Os2WarningHandler(const char* module, const char* fmt, va_list ap)
{
#ifndef TIF_PLATFORM_CONSOLE
	LPTSTR szTitle;
	LPTSTR szTmp;
	LPCTSTR szTitleText = "%s Warning";
	LPCTSTR szDefaultModule = "TIFFLIB";
	szTmp = (module == NULL) ? (LPTSTR)szDefaultModule : (LPTSTR)module;
	if ((szTitle = (LPTSTR)LocalAlloc(LMEM_FIXED, (lstrlen(szTmp) +
			lstrlen(szTitleText) + lstrlen(fmt) + 128)*sizeof(TCHAR))) == NULL)
		return;
	wsprintf(szTitle, szTitleText, szTmp);
	szTmp = szTitle + (lstrlen(szTitle)+2)*sizeof(TCHAR);
	wvsprintf(szTmp, fmt, ap);
	WinMessageBox( HWND_DESKTOP
               ,WinQueryFocus(HWND_DESKTOP)
               ,szTmp
               ,szTitle
               ,0
               ,MB_OK | MB_INFORMATION
              );
	LocalFree(szTitle);
	return;
#else
	if (module != NULL)
		fprintf(stderr, "%s: ", module);
	fprintf(stderr, "Warning, ");
	vfprintf(stderr, fmt, ap);
	fprintf(stderr, ".\n");
#endif
}
TIFFErrorHandler _TIFFwarningHandler = Os2WarningHandler;

static void LINKAGEMODE
Os2ErrorHandler(const char* module, const char* fmt, va_list ap)
{
#ifndef TIF_PLATFORM_CONSOLE
	LPTSTR szTitle;
	LPTSTR szTmp;
	LPCTSTR szTitleText = "%s Error";
	LPCTSTR szDefaultModule = "TIFFLIB";
	szTmp = (module == NULL) ? (LPTSTR)szDefaultModule : (LPTSTR)module;
	if ((szTitle = (LPTSTR)LocalAlloc(LMEM_FIXED, (lstrlen(szTmp) +
			lstrlen(szTitleText) + lstrlen(fmt) + 128)*sizeof(TCHAR))) == NULL)
		return;
	wsprintf(szTitle, szTitleText, szTmp);
	szTmp = szTitle + (lstrlen(szTitle)+2)*sizeof(TCHAR);
	wvsprintf(szTmp, fmt, ap);
	WinMessageBox( HWND_DESKTOP
               ,WinQueryFocus(HWND_DESKTOP)
               ,szTmp
               ,szTitle
               ,0
               ,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 = Os2ErrorHandler;
Commit	Line	Data
	1	/* $Header$ */
	2
	3	/*
	4	* Copyright (c) 1988-1997 Sam Leffler
	5	* Copyright (c) 1991-1997 Silicon Graphics, Inc.
	6	*
	7	* modifed for use with OS/2 by David Webster
	8	*
	9	* Permission to use, copy, modify, distribute, and sell this software and
	10	* its documentation for any purpose is hereby granted without fee, provided
	11	* that (i) the above copyright notices and this permission notice appear in
	12	* all copies of the software and related documentation, and (ii) the names of
	13	* Sam Leffler and Silicon Graphics may not be used in any advertising or
	14	* publicity relating to the software without the specific, prior written
	15	* permission of Sam Leffler and Silicon Graphics.
	16	*
	17	* THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
	18	* EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
	19	* WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
	20	*
	21	* IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
	22	* ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
	23	* OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
	24	* WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
	25	* LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
	26	* OF THIS SOFTWARE.
	27	*/
	28
	29	/*
	30	* TIFF Library OS/2-specific Routines. Adapted from tif_win32.c 2/16/00 by
	31	* David Webster (dwebster@bhmi.com), Baldwin, Hackett, and Meeks, Inc., Omaha, NE USA
	32	*/
	33	#define INCL_PM
	34	#define INCL_BASE
	35	#include <os2.h>
	36	#include <stdio.h>
	37	#include <stdlib.h>
	38	#include "tiffiop.h"
	39
	40	/* Some windows datatypes */
	41
	42	typedef ULONG DWORD;
	43	typedef ULONG HANDLE;
	44	typedef PCHAR LPTSTR;
	45	typedef const PCHAR LPCTSTR;
	46	typedef CHAR TCHAR;
	47	#define GlobalAlloc(a,b) malloc(b)
	48	#define LocalAlloc(a,b) malloc(b)
	49	#define GlobalFree(b) free(b)
	50	#define LocalFree(b) free(b)
	51	#define GlobalReAlloc(p, s, t) realloc(p, s)
	52	#define CopyMemory(p, v, s) memcpy(p, v, s)
	53	#define FillMemory(p, c, s) memset(p, c, s)
	54	#define GlobalSize(p) sizeof(p)
	55	#define wsprintf sprintf
	56	#define wvsprintf vsprintf
	57	#define lstrlen strlen
	58
	59	static tsize_t LINKAGEMODE
	60	_tiffReadProc(thandle_t fd, tdata_t buf, tsize_t size)
	61	{
	62	DWORD dwSizeRead;
	63	if (!DosRead((HFILE)fd, buf, size, &dwSizeRead))
	64	return(0);
	65	return ((tsize_t) dwSizeRead);
	66	}
	67
	68	static tsize_t LINKAGEMODE
	69	_tiffWriteProc(thandle_t fd, tdata_t buf, tsize_t size)
	70	{
	71	DWORD dwSizeWritten;
	72	if (!DosWrite((HFILE)fd, buf, size, &dwSizeWritten))
	73	return(0);
	74	return ((tsize_t) dwSizeWritten);
	75	}
	76
	77	static toff_t LINKAGEMODE
	78	_tiffSeekProc(thandle_t fd, toff_t off, int whence)
	79	{
	80	DWORD dwMoveMethod;
	81	ULONG ibActual;
	82	switch(whence)
	83	{
	84	case 0:
	85	dwMoveMethod = FILE_BEGIN;
	86	break;
	87	case 1:
	88	dwMoveMethod = FILE_CURRENT;
	89	break;
	90	case 2:
	91	dwMoveMethod = FILE_END;
	92	break;
	93	default:
	94	dwMoveMethod = FILE_BEGIN;
	95	break;
	96	}
	97	DosSetFilePtr((HFILE)fd, off, dwMoveMethod, &ibActual);
	98	return((toff_t)ibActual);
	99	}
	100
	101	static int LINKAGEMODE
	102	_tiffCloseProc(thandle_t fd)
	103	{
	104	return (DosClose((HFILE)fd) ? 0 : -1);
	105	}
	106
	107	static toff_t LINKAGEMODE
	108	_tiffSizeProc(thandle_t fd)
	109	{
	110	FILESTATUS3 vStatus;
	111
	112	DosQueryFileInfo((HFILE)fd, FIL_STANDARD, &vStatus, sizeof(FILESTATUS3));
	113	return (vStatus.cbFile);
	114	}
	115
	116	static int LINKAGEMODE
	117	_tiffDummyMapProc(thandle_t fd, tdata_t* pbase, toff_t* psize)
	118	{
	119	return (0);
	120	}
	121
	122	/*
	123	* From "Hermann Josef Hill" <lhill@rhein-zeitung.de>:
	124	*
	125	* Windows uses both a handle and a pointer for file mapping,
	126	* but according to the SDK documentation and Richter's book
	127	* "Advanced Windows Programming" it is safe to free the handle
	128	* after obtaining the file mapping pointer
	129	*
	130	* This removes a nasty OS dependency and cures a problem
	131	* with Visual C++ 5.0
	132	*/
	133	static int LINKAGEMODE
	134	_tiffMapProc(thandle_t fd, tdata_t* pbase, toff_t* psize)
	135	{
	136	return(0);
	137	}
	138
	139	static void LINKAGEMODE
	140	_tiffDummyUnmapProc(thandle_t fd, tdata_t base, toff_t size)
	141	{
	142	}
	143
	144	static void LINKAGEMODE
	145	_tiffUnmapProc(thandle_t fd, tdata_t base, toff_t size)
	146	{
	147	}
	148
	149	/*
	150	* Open a TIFF file descriptor for read/writing.
	151	* Note that TIFFFdOpen and TIFFOpen recognise the character 'u' in the mode
	152	* string, which forces the file to be opened unmapped.
	153	*/
	154	TIFF*
	155	TIFFFdOpen(int ifd, const char* name, const char* mode)
	156	{
	157	TIFF* tif;
	158	BOOL fSuppressMap = (mode[1] == 'u' \|\| mode[2] == 'u');
	159
	160	tif = TIFFClientOpen(name, mode,
	161	(thandle_t)ifd,
	162	_tiffReadProc, _tiffWriteProc,
	163	_tiffSeekProc, _tiffCloseProc, _tiffSizeProc,
	164	fSuppressMap ? _tiffDummyMapProc : _tiffMapProc,
	165	fSuppressMap ? _tiffDummyUnmapProc : _tiffUnmapProc);
	166	if (tif)
	167	tif->tif_fd = ifd;
	168	return (tif);
	169	}
	170
	171	/*
	172	* Open a TIFF file for read/writing.
	173	*/
	174	TIFF*
	175	TIFFOpen(const char* name, const char* mode)
	176	{
	177	static const char module[] = "TIFFOpen";
	178	thandle_t fd;
	179	int m;
	180	DWORD dwOpenMode;
	181	DWORD dwOpenFlags;
	182	DWORD dwAction;
	183	APIRET ulrc;
	184
	185	m = _TIFFgetMode(mode, module);
	186
	187	switch(m)
	188	{
	189	case O_RDONLY:
	190	dwOpenMode = OPEN_ACCESS_READONLY;
	191	dwOpenFlags = OPEN_ACTION_FAIL_IF_NEW;
	192	break;
	193	case O_RDWR:
	194	dwOpenMode = OPEN_ACCESS_READWRITE;
	195	dwOpenFlags = OPEN_ACTION_FAIL_IF_NEW;
	196	break;
	197	case O_RDWR\|O_CREAT:
	198	dwOpenMode = OPEN_ACCESS_READWRITE;
	199	dwOpenFlags = OPEN_ACTION_CREATE_IF_NEW;
	200	break;
	201	case O_RDWR\|O_TRUNC:
	202	dwOpenMode = OPEN_ACCESS_READWRITE;
	203	dwOpenFlags = OPEN_ACTION_FAIL_IF_NEW \| OPEN_ACTION_OPEN_IF_EXISTS;
	204	break;
	205	case O_RDWR\|O_CREAT\|O_TRUNC:
	206	dwOpenMode = OPEN_ACCESS_READWRITE;
	207	dwOpenFlags = OPEN_ACTION_CREATE_IF_NEW \| OPEN_ACTION_REPLACE_IF_EXISTS;
	208	break;
	209	default:
	210	return ((TIFF*)0);
	211	}
	212	ulrc = DosOpen( name, (HFILE*)&fd, &dwAction, FILE_ARCHIVED\|FILE_NORMAL
	213	,1000L, dwOpenFlags, dwOpenMode, NULL
	214	);
	215	if (fd != NO_ERROR) {
	216	TIFFError(module, "%s: Cannot open", name);
	217	return ((TIFF *)0);
	218	}
	219	return (TIFFFdOpen((int)fd, name, mode));
	220	}
	221
	222	tdata_t
	223	_TIFFmalloc(tsize_t s)
	224	{
	225	return ((tdata_t)GlobalAlloc(GMEM_FIXED, s));
	226	}
	227
	228	void
	229	_TIFFfree(tdata_t p)
	230	{
	231	GlobalFree(p);
	232	return;
	233	}
	234
	235	tdata_t
	236	_TIFFrealloc(tdata_t p, tsize_t s)
	237	{
	238	void* pvTmp;
	239	if ((pvTmp = GlobalReAlloc(p, s, 0)) == NULL) {
	240	if ((pvTmp = GlobalAlloc(sGMEM_FIXED, s)) != NULL) {
	241	CopyMemory(pvTmp, p, GlobalSize(p));
	242	GlobalFree(p);
	243	}
	244	}
	245	return ((tdata_t)pvTmp);
	246	}
	247
	248	void
	249	_TIFFmemset(void* p, int v, tsize_t c)
	250	{
	251	FillMemory(p, c, (BYTE)v);
	252	}
	253
	254	void
	255	_TIFFmemcpy(void* d, const tdata_t s, tsize_t c)
	256	{
	257	CopyMemory(d, s, c);
	258	}
	259
	260	int
	261	_TIFFmemcmp(const tdata_t p1, const tdata_t p2, tsize_t c)
	262	{
	263	register const pb1 = (const int)p1;
	264	register const pb2 = (const int)p2;
	265	register DWORD dwTmp = c;
	266	register int iTmp;
	267	for (iTmp = 0; dwTmp-- && !iTmp; iTmp = (int)pb1++ - (int)pb2++)
	268	;
	269	return (iTmp);
	270	}
	271
	272	static void LINKAGEMODE
	273	Os2WarningHandler(const char* module, const char* fmt, va_list ap)
	274	{
	275	#ifndef TIF_PLATFORM_CONSOLE
	276	LPTSTR szTitle;
	277	LPTSTR szTmp;
	278	LPCTSTR szTitleText = "%s Warning";
	279	LPCTSTR szDefaultModule = "TIFFLIB";
	280	szTmp = (module == NULL) ? (LPTSTR)szDefaultModule : (LPTSTR)module;
	281	if ((szTitle = (LPTSTR)LocalAlloc(LMEM_FIXED, (lstrlen(szTmp) +
	282	lstrlen(szTitleText) + lstrlen(fmt) + 128)*sizeof(TCHAR))) == NULL)
	283	return;
	284	wsprintf(szTitle, szTitleText, szTmp);
	285	szTmp = szTitle + (lstrlen(szTitle)+2)*sizeof(TCHAR);
	286	wvsprintf(szTmp, fmt, ap);
	287	WinMessageBox( HWND_DESKTOP
	288	,WinQueryFocus(HWND_DESKTOP)
	289	,szTmp
	290	,szTitle
	291	,0
	292	,MB_OK \| MB_INFORMATION
	293	);
	294	LocalFree(szTitle);
	295	return;
	296	#else
	297	if (module != NULL)
	298	fprintf(stderr, "%s: ", module);
	299	fprintf(stderr, "Warning, ");
	300	vfprintf(stderr, fmt, ap);
	301	fprintf(stderr, ".\n");
	302	#endif
	303	}
	304	TIFFErrorHandler _TIFFwarningHandler = Os2WarningHandler;
	305
	306	static void LINKAGEMODE
	307	Os2ErrorHandler(const char* module, const char* fmt, va_list ap)
	308	{
	309	#ifndef TIF_PLATFORM_CONSOLE
	310	LPTSTR szTitle;
	311	LPTSTR szTmp;
	312	LPCTSTR szTitleText = "%s Error";
	313	LPCTSTR szDefaultModule = "TIFFLIB";
	314	szTmp = (module == NULL) ? (LPTSTR)szDefaultModule : (LPTSTR)module;
	315	if ((szTitle = (LPTSTR)LocalAlloc(LMEM_FIXED, (lstrlen(szTmp) +
	316	lstrlen(szTitleText) + lstrlen(fmt) + 128)*sizeof(TCHAR))) == NULL)
	317	return;
	318	wsprintf(szTitle, szTitleText, szTmp);
	319	szTmp = szTitle + (lstrlen(szTitle)+2)*sizeof(TCHAR);
	320	wvsprintf(szTmp, fmt, ap);
	321	WinMessageBox( HWND_DESKTOP
	322	,WinQueryFocus(HWND_DESKTOP)
	323	,szTmp
	324	,szTitle
	325	,0
	326	,MB_OK \| MB_ICONEXCLAMATION
	327	);
	328	LocalFree(szTitle);
	329	return;
	330	#else
	331	if (module != NULL)
	332	fprintf(stderr, "%s: ", module);
	333	vfprintf(stderr, fmt, ap);
	334	fprintf(stderr, ".\n");
	335	#endif
	336	}
	337	TIFFErrorHandler _TIFFerrorHandler = Os2ErrorHandler;
	338