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TIFF and LibTiff Mail List Archive

Thread

1999.11.19 01:47 "append mode using the TiffCopy program on WindowsNT", by Ward Cannon
1999.11.19 18:52 "Re: append mode using the TiffCopy program on WindowsNT", by Frank Warmerdam

1999.11.19 18:52 "Re: append mode using the TiffCopy program on WindowsNT", by Frank Warmerdam

> Ward Cannon wrote:

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 $ */

/*

*

*/

/*

 */
#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>:
 *

*

 */
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);
}

/*

 */
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;