1999.11.19 18:52 "Re: append mode using the TiffCopy program on WindowsNT", by Frank Warmerdam
I'm trying to use the TiffCopy program with the -a option using the Win32.c module. I can't seem to get files to append. Before I dig into the code and see why, does anyone have any experiences with this?
Ward,
Some changes were incorporated into tif_win32.c circa September 15 to fix append mode, and should be in the current release on www.libtiff.org. I have attached the current development tif_win32.c which includes the changes.
Best regards,
---------------------------------------+--------------------------------------
I set the clouds in motion - turned up | Frank Warmerdam, warmerda@home.com
light and sound - activate the windows | http://members.home.com/warmerda
and watch the world go round - Rush | Geospatial Programmer for Rent
/* $Header: /cvsroot/osrs/libtiff/libtiff/tif_win32.c,v 1.3 1999/09/15 01:28:47 warmerda 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 Win32-specific Routines. Adapted from tif_unix.c 4/5/95 by
* Scott Wagner (wagner@itek.com), Itek Graphix, Rochester, NY USA
*/
#include <windows.h>
#include "tiffiop.h"
static tsize_t
_tiffReadProc(thandle_t fd, tdata_t buf, tsize_t size)
{
DWORD dwSizeRead;
if (!ReadFile(fd, buf, size, &dwSizeRead, NULL))
return(0);
return ((tsize_t) dwSizeRead);
}
static tsize_t
_tiffWriteProc(thandle_t fd, tdata_t buf, tsize_t size)
{
DWORD dwSizeWritten;
if (!WriteFile(fd, buf, size, &dwSizeWritten, NULL))
return(0);
return ((tsize_t) dwSizeWritten);
}
static toff_t
_tiffSeekProc(thandle_t fd, toff_t off, int whence)
{
DWORD dwMoveMethod;
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;
}
return ((toff_t)SetFilePointer(fd, off, NULL, dwMoveMethod));
}
static int
_tiffCloseProc(thandle_t fd)
{
return (CloseHandle(fd) ? 0 : -1);
}
static toff_t
_tiffSizeProc(thandle_t fd)
{
return ((toff_t)GetFileSize(fd, NULL));
}
static int
_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
_tiffMapProc(thandle_t fd, tdata_t* pbase, toff_t* psize)
{
toff_t size;
HANDLE hMapFile;
if ((size = _tiffSizeProc(fd)) == (toff_t)-1)
return (0);
hMapFile = CreateFileMapping(fd, NULL, PAGE_READONLY, 0, size, 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, tdata_t base, toff_t size)
{
}
static void
_tiffUnmapProc(thandle_t fd, tdata_t base, toff_t 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;
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 dwMode;
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)CreateFile(name, (m == O_RDONLY) ? GENERIC_READ :
(GENERIC_READ | GENERIC_WRITE), FILE_SHARE_READ, NULL, dwMode,
(m == O_RDONLY) ? FILE_ATTRIBUTE_READONLY : FILE_ATTRIBUTE_NORMAL, NULL);
if (fd == INVALID_HANDLE_VALUE) {
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(GMEM_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 BYTE *pb1 = p1;
register const BYTE *pb2 = p2;
register DWORD dwTmp = c;
register int iTmp;
for (iTmp = 0; dwTmp-- && !iTmp; iTmp = (int)*pb1++ - (int)*pb2++)
;
return (iTmp);
}
static void
Win32WarningHandler(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);
MessageBox(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
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);
MessageBox(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;