From d479dd1aab1c1cb907932c6595b0ef33523fc797 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?J=C3=B6rg=20Frings-F=C3=BCrst?= Date: Fri, 6 Nov 2015 07:14:47 +0100 Subject: Imported Upstream version 1.8.3 --- tiff/libtiff/tif_write.c | 771 ----------------------------------------------- 1 file changed, 771 deletions(-) delete mode 100755 tiff/libtiff/tif_write.c (limited to 'tiff/libtiff/tif_write.c') diff --git a/tiff/libtiff/tif_write.c b/tiff/libtiff/tif_write.c deleted file mode 100755 index cb610fc..0000000 --- a/tiff/libtiff/tif_write.c +++ /dev/null @@ -1,771 +0,0 @@ -/* $Id: tif_write.c,v 1.38 2013-01-18 21:57:12 fwarmerdam 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. - * - * Scanline-oriented Write Support - */ -#include "tiffiop.h" -#include - -#define STRIPINCR 20 /* expansion factor on strip array */ - -#define WRITECHECKSTRIPS(tif, module) \ - (((tif)->tif_flags&TIFF_BEENWRITING) || TIFFWriteCheck((tif),0,module)) -#define WRITECHECKTILES(tif, module) \ - (((tif)->tif_flags&TIFF_BEENWRITING) || TIFFWriteCheck((tif),1,module)) -#define BUFFERCHECK(tif) \ - ((((tif)->tif_flags & TIFF_BUFFERSETUP) && tif->tif_rawdata) || \ - TIFFWriteBufferSetup((tif), NULL, (tmsize_t) -1)) - -static int TIFFGrowStrips(TIFF* tif, uint32 delta, const char* module); -static int TIFFAppendToStrip(TIFF* tif, uint32 strip, uint8* data, tmsize_t cc); - -int -TIFFWriteScanline(TIFF* tif, void* buf, uint32 row, uint16 sample) -{ - static const char module[] = "TIFFWriteScanline"; - register TIFFDirectory *td; - int status, imagegrew = 0; - uint32 strip; - - if (!WRITECHECKSTRIPS(tif, module)) - return (-1); - /* - * Handle delayed allocation of data buffer. This - * permits it to be sized more intelligently (using - * directory information). - */ - if (!BUFFERCHECK(tif)) - return (-1); - tif->tif_flags |= TIFF_BUF4WRITE; /* not strictly sure this is right*/ - - td = &tif->tif_dir; - /* - * Extend image length if needed - * (but only for PlanarConfig=1). - */ - if (row >= td->td_imagelength) { /* extend image */ - if (td->td_planarconfig == PLANARCONFIG_SEPARATE) { - TIFFErrorExt(tif->tif_clientdata, module, - "Can not change \"ImageLength\" when using separate planes"); - return (-1); - } - td->td_imagelength = row+1; - imagegrew = 1; - } - /* - * Calculate strip and check for crossings. - */ - if (td->td_planarconfig == PLANARCONFIG_SEPARATE) { - if (sample >= td->td_samplesperpixel) { - TIFFErrorExt(tif->tif_clientdata, module, - "%lu: Sample out of range, max %lu", - (unsigned long) sample, (unsigned long) td->td_samplesperpixel); - return (-1); - } - strip = sample*td->td_stripsperimage + row/td->td_rowsperstrip; - } else - strip = row / td->td_rowsperstrip; - /* - * Check strip array to make sure there's space. We don't support - * dynamically growing files that have data organized in separate - * bitplanes because it's too painful. In that case we require that - * the imagelength be set properly before the first write (so that the - * strips array will be fully allocated above). - */ - if (strip >= td->td_nstrips && !TIFFGrowStrips(tif, 1, module)) - return (-1); - if (strip != tif->tif_curstrip) { - /* - * Changing strips -- flush any data present. - */ - if (!TIFFFlushData(tif)) - return (-1); - tif->tif_curstrip = strip; - /* - * Watch out for a growing image. The value of strips/image - * will initially be 1 (since it can't be deduced until the - * imagelength is known). - */ - if (strip >= td->td_stripsperimage && imagegrew) - td->td_stripsperimage = - TIFFhowmany_32(td->td_imagelength,td->td_rowsperstrip); - tif->tif_row = - (strip % td->td_stripsperimage) * td->td_rowsperstrip; - if ((tif->tif_flags & TIFF_CODERSETUP) == 0) { - if (!(*tif->tif_setupencode)(tif)) - return (-1); - tif->tif_flags |= TIFF_CODERSETUP; - } - - tif->tif_rawcc = 0; - tif->tif_rawcp = tif->tif_rawdata; - - if( td->td_stripbytecount[strip] > 0 ) - { - /* if we are writing over existing tiles, zero length */ - td->td_stripbytecount[strip] = 0; - - /* this forces TIFFAppendToStrip() to do a seek */ - tif->tif_curoff = 0; - } - - if (!(*tif->tif_preencode)(tif, sample)) - return (-1); - tif->tif_flags |= TIFF_POSTENCODE; - } - /* - * Ensure the write is either sequential or at the - * beginning of a strip (or that we can randomly - * access the data -- i.e. no encoding). - */ - if (row != tif->tif_row) { - if (row < tif->tif_row) { - /* - * Moving backwards within the same strip: - * backup to the start and then decode - * forward (below). - */ - tif->tif_row = (strip % td->td_stripsperimage) * - td->td_rowsperstrip; - tif->tif_rawcp = tif->tif_rawdata; - } - /* - * Seek forward to the desired row. - */ - if (!(*tif->tif_seek)(tif, row - tif->tif_row)) - return (-1); - tif->tif_row = row; - } - - /* swab if needed - note that source buffer will be altered */ - tif->tif_postdecode( tif, (uint8*) buf, tif->tif_scanlinesize ); - - status = (*tif->tif_encoderow)(tif, (uint8*) buf, - tif->tif_scanlinesize, sample); - - /* we are now poised at the beginning of the next row */ - tif->tif_row = row + 1; - return (status); -} - -/* - * Encode the supplied data and write it to the - * specified strip. - * - * NB: Image length must be setup before writing. - */ -tmsize_t -TIFFWriteEncodedStrip(TIFF* tif, uint32 strip, void* data, tmsize_t cc) -{ - static const char module[] = "TIFFWriteEncodedStrip"; - TIFFDirectory *td = &tif->tif_dir; - uint16 sample; - - if (!WRITECHECKSTRIPS(tif, module)) - return ((tmsize_t) -1); - /* - * Check strip array to make sure there's space. - * We don't support dynamically growing files that - * have data organized in separate bitplanes because - * it's too painful. In that case we require that - * the imagelength be set properly before the first - * write (so that the strips array will be fully - * allocated above). - */ - if (strip >= td->td_nstrips) { - if (td->td_planarconfig == PLANARCONFIG_SEPARATE) { - TIFFErrorExt(tif->tif_clientdata, module, - "Can not grow image by strips when using separate planes"); - return ((tmsize_t) -1); - } - if (!TIFFGrowStrips(tif, 1, module)) - return ((tmsize_t) -1); - td->td_stripsperimage = - TIFFhowmany_32(td->td_imagelength, td->td_rowsperstrip); - } - /* - * Handle delayed allocation of data buffer. This - * permits it to be sized according to the directory - * info. - */ - if (!BUFFERCHECK(tif)) - return ((tmsize_t) -1); - - tif->tif_flags |= TIFF_BUF4WRITE; - tif->tif_curstrip = strip; - - tif->tif_row = (strip % td->td_stripsperimage) * td->td_rowsperstrip; - if ((tif->tif_flags & TIFF_CODERSETUP) == 0) { - if (!(*tif->tif_setupencode)(tif)) - return ((tmsize_t) -1); - tif->tif_flags |= TIFF_CODERSETUP; - } - - if( td->td_stripbytecount[strip] > 0 ) - { - /* Make sure that at the first attempt of rewriting the tile, we will have */ - /* more bytes available in the output buffer than the previous byte count, */ - /* so that TIFFAppendToStrip() will detect the overflow when it is called the first */ - /* time if the new compressed tile is bigger than the older one. (GDAL #4771) */ - if( tif->tif_rawdatasize <= (tmsize_t)td->td_stripbytecount[strip] ) - { - if( !(TIFFWriteBufferSetup(tif, NULL, - (tmsize_t)TIFFroundup_64((uint64)(td->td_stripbytecount[strip] + 1), 1024))) ) - return ((tmsize_t)(-1)); - } - - /* Force TIFFAppendToStrip() to consider placing data at end - of file. */ - tif->tif_curoff = 0; - } - - tif->tif_rawcc = 0; - tif->tif_rawcp = tif->tif_rawdata; - - tif->tif_flags &= ~TIFF_POSTENCODE; - sample = (uint16)(strip / td->td_stripsperimage); - if (!(*tif->tif_preencode)(tif, sample)) - return ((tmsize_t) -1); - - /* swab if needed - note that source buffer will be altered */ - tif->tif_postdecode( tif, (uint8*) data, cc ); - - if (!(*tif->tif_encodestrip)(tif, (uint8*) data, cc, sample)) - return (0); - if (!(*tif->tif_postencode)(tif)) - return ((tmsize_t) -1); - if (!isFillOrder(tif, td->td_fillorder) && - (tif->tif_flags & TIFF_NOBITREV) == 0) - TIFFReverseBits(tif->tif_rawdata, tif->tif_rawcc); - if (tif->tif_rawcc > 0 && - !TIFFAppendToStrip(tif, strip, tif->tif_rawdata, tif->tif_rawcc)) - return ((tmsize_t) -1); - tif->tif_rawcc = 0; - tif->tif_rawcp = tif->tif_rawdata; - return (cc); -} - -/* - * Write the supplied data to the specified strip. - * - * NB: Image length must be setup before writing. - */ -tmsize_t -TIFFWriteRawStrip(TIFF* tif, uint32 strip, void* data, tmsize_t cc) -{ - static const char module[] = "TIFFWriteRawStrip"; - TIFFDirectory *td = &tif->tif_dir; - - if (!WRITECHECKSTRIPS(tif, module)) - return ((tmsize_t) -1); - /* - * Check strip array to make sure there's space. - * We don't support dynamically growing files that - * have data organized in separate bitplanes because - * it's too painful. In that case we require that - * the imagelength be set properly before the first - * write (so that the strips array will be fully - * allocated above). - */ - if (strip >= td->td_nstrips) { - if (td->td_planarconfig == PLANARCONFIG_SEPARATE) { - TIFFErrorExt(tif->tif_clientdata, module, - "Can not grow image by strips when using separate planes"); - return ((tmsize_t) -1); - } - /* - * Watch out for a growing image. The value of - * strips/image will initially be 1 (since it - * can't be deduced until the imagelength is known). - */ - if (strip >= td->td_stripsperimage) - td->td_stripsperimage = - TIFFhowmany_32(td->td_imagelength,td->td_rowsperstrip); - if (!TIFFGrowStrips(tif, 1, module)) - return ((tmsize_t) -1); - } - tif->tif_curstrip = strip; - tif->tif_row = (strip % td->td_stripsperimage) * td->td_rowsperstrip; - return (TIFFAppendToStrip(tif, strip, (uint8*) data, cc) ? - cc : (tmsize_t) -1); -} - -/* - * Write and compress a tile of data. The - * tile is selected by the (x,y,z,s) coordinates. - */ -tmsize_t -TIFFWriteTile(TIFF* tif, void* buf, uint32 x, uint32 y, uint32 z, uint16 s) -{ - if (!TIFFCheckTile(tif, x, y, z, s)) - return ((tmsize_t)(-1)); - /* - * NB: A tile size of -1 is used instead of tif_tilesize knowing - * that TIFFWriteEncodedTile will clamp this to the tile size. - * This is done because the tile size may not be defined until - * after the output buffer is setup in TIFFWriteBufferSetup. - */ - return (TIFFWriteEncodedTile(tif, - TIFFComputeTile(tif, x, y, z, s), buf, (tmsize_t)(-1))); -} - -/* - * Encode the supplied data and write it to the - * specified tile. There must be space for the - * data. The function clamps individual writes - * to a tile to the tile size, but does not (and - * can not) check that multiple writes to the same - * tile do not write more than tile size data. - * - * NB: Image length must be setup before writing; this - * interface does not support automatically growing - * the image on each write (as TIFFWriteScanline does). - */ -tmsize_t -TIFFWriteEncodedTile(TIFF* tif, uint32 tile, void* data, tmsize_t cc) -{ - static const char module[] = "TIFFWriteEncodedTile"; - TIFFDirectory *td; - uint16 sample; - - if (!WRITECHECKTILES(tif, module)) - return ((tmsize_t)(-1)); - td = &tif->tif_dir; - if (tile >= td->td_nstrips) { - TIFFErrorExt(tif->tif_clientdata, module, "Tile %lu out of range, max %lu", - (unsigned long) tile, (unsigned long) td->td_nstrips); - return ((tmsize_t)(-1)); - } - /* - * Handle delayed allocation of data buffer. This - * permits it to be sized more intelligently (using - * directory information). - */ - if (!BUFFERCHECK(tif)) - return ((tmsize_t)(-1)); - - tif->tif_flags |= TIFF_BUF4WRITE; - tif->tif_curtile = tile; - - if( td->td_stripbytecount[tile] > 0 ) - { - /* Make sure that at the first attempt of rewriting the tile, we will have */ - /* more bytes available in the output buffer than the previous byte count, */ - /* so that TIFFAppendToStrip() will detect the overflow when it is called the first */ - /* time if the new compressed tile is bigger than the older one. (GDAL #4771) */ - if( tif->tif_rawdatasize <= (tmsize_t) td->td_stripbytecount[tile] ) - { - if( !(TIFFWriteBufferSetup(tif, NULL, - (tmsize_t)TIFFroundup_64((uint64)(td->td_stripbytecount[tile] + 1), 1024))) ) - return ((tmsize_t)(-1)); - } - - /* Force TIFFAppendToStrip() to consider placing data at end - of file. */ - tif->tif_curoff = 0; - } - - tif->tif_rawcc = 0; - tif->tif_rawcp = tif->tif_rawdata; - - /* - * Compute tiles per row & per column to compute - * current row and column - */ - tif->tif_row = (tile % TIFFhowmany_32(td->td_imagelength, td->td_tilelength)) - * td->td_tilelength; - tif->tif_col = (tile % TIFFhowmany_32(td->td_imagewidth, td->td_tilewidth)) - * td->td_tilewidth; - - if ((tif->tif_flags & TIFF_CODERSETUP) == 0) { - if (!(*tif->tif_setupencode)(tif)) - return ((tmsize_t)(-1)); - tif->tif_flags |= TIFF_CODERSETUP; - } - tif->tif_flags &= ~TIFF_POSTENCODE; - sample = (uint16)(tile/td->td_stripsperimage); - if (!(*tif->tif_preencode)(tif, sample)) - return ((tmsize_t)(-1)); - /* - * Clamp write amount to the tile size. This is mostly - * done so that callers can pass in some large number - * (e.g. -1) and have the tile size used instead. - */ - if ( cc < 1 || cc > tif->tif_tilesize) - cc = tif->tif_tilesize; - - /* swab if needed - note that source buffer will be altered */ - tif->tif_postdecode( tif, (uint8*) data, cc ); - - if (!(*tif->tif_encodetile)(tif, (uint8*) data, cc, sample)) - return (0); - if (!(*tif->tif_postencode)(tif)) - return ((tmsize_t)(-1)); - if (!isFillOrder(tif, td->td_fillorder) && - (tif->tif_flags & TIFF_NOBITREV) == 0) - TIFFReverseBits((uint8*)tif->tif_rawdata, tif->tif_rawcc); - if (tif->tif_rawcc > 0 && !TIFFAppendToStrip(tif, tile, - tif->tif_rawdata, tif->tif_rawcc)) - return ((tmsize_t)(-1)); - tif->tif_rawcc = 0; - tif->tif_rawcp = tif->tif_rawdata; - return (cc); -} - -/* - * Write the supplied data to the specified strip. - * There must be space for the data; we don't check - * if strips overlap! - * - * NB: Image length must be setup before writing; this - * interface does not support automatically growing - * the image on each write (as TIFFWriteScanline does). - */ -tmsize_t -TIFFWriteRawTile(TIFF* tif, uint32 tile, void* data, tmsize_t cc) -{ - static const char module[] = "TIFFWriteRawTile"; - - if (!WRITECHECKTILES(tif, module)) - return ((tmsize_t)(-1)); - if (tile >= tif->tif_dir.td_nstrips) { - TIFFErrorExt(tif->tif_clientdata, module, "Tile %lu out of range, max %lu", - (unsigned long) tile, - (unsigned long) tif->tif_dir.td_nstrips); - return ((tmsize_t)(-1)); - } - return (TIFFAppendToStrip(tif, tile, (uint8*) data, cc) ? - cc : (tmsize_t)(-1)); -} - -#define isUnspecified(tif, f) \ - (TIFFFieldSet(tif,f) && (tif)->tif_dir.td_imagelength == 0) - -int -TIFFSetupStrips(TIFF* tif) -{ - TIFFDirectory* td = &tif->tif_dir; - - if (isTiled(tif)) - td->td_stripsperimage = - isUnspecified(tif, FIELD_TILEDIMENSIONS) ? - td->td_samplesperpixel : TIFFNumberOfTiles(tif); - else - td->td_stripsperimage = - isUnspecified(tif, FIELD_ROWSPERSTRIP) ? - td->td_samplesperpixel : TIFFNumberOfStrips(tif); - td->td_nstrips = td->td_stripsperimage; - if (td->td_planarconfig == PLANARCONFIG_SEPARATE) - td->td_stripsperimage /= td->td_samplesperpixel; - td->td_stripoffset = (uint64 *) - _TIFFmalloc(td->td_nstrips * sizeof (uint64)); - td->td_stripbytecount = (uint64 *) - _TIFFmalloc(td->td_nstrips * sizeof (uint64)); - if (td->td_stripoffset == NULL || td->td_stripbytecount == NULL) - return (0); - /* - * Place data at the end-of-file - * (by setting offsets to zero). - */ - _TIFFmemset(td->td_stripoffset, 0, td->td_nstrips*sizeof (uint64)); - _TIFFmemset(td->td_stripbytecount, 0, td->td_nstrips*sizeof (uint64)); - TIFFSetFieldBit(tif, FIELD_STRIPOFFSETS); - TIFFSetFieldBit(tif, FIELD_STRIPBYTECOUNTS); - return (1); -} -#undef isUnspecified - -/* - * Verify file is writable and that the directory - * information is setup properly. In doing the latter - * we also "freeze" the state of the directory so - * that important information is not changed. - */ -int -TIFFWriteCheck(TIFF* tif, int tiles, const char* module) -{ - if (tif->tif_mode == O_RDONLY) { - TIFFErrorExt(tif->tif_clientdata, module, "File not open for writing"); - return (0); - } - if (tiles ^ isTiled(tif)) { - TIFFErrorExt(tif->tif_clientdata, module, tiles ? - "Can not write tiles to a stripped image" : - "Can not write scanlines to a tiled image"); - return (0); - } - - _TIFFFillStriles( tif ); - - /* - * On the first write verify all the required information - * has been setup and initialize any data structures that - * had to wait until directory information was set. - * Note that a lot of our work is assumed to remain valid - * because we disallow any of the important parameters - * from changing after we start writing (i.e. once - * TIFF_BEENWRITING is set, TIFFSetField will only allow - * the image's length to be changed). - */ - if (!TIFFFieldSet(tif, FIELD_IMAGEDIMENSIONS)) { - TIFFErrorExt(tif->tif_clientdata, module, - "Must set \"ImageWidth\" before writing data"); - return (0); - } - if (tif->tif_dir.td_samplesperpixel == 1) { - /* - * Planarconfiguration is irrelevant in case of single band - * images and need not be included. We will set it anyway, - * because this field is used in other parts of library even - * in the single band case. - */ - if (!TIFFFieldSet(tif, FIELD_PLANARCONFIG)) - tif->tif_dir.td_planarconfig = PLANARCONFIG_CONTIG; - } else { - if (!TIFFFieldSet(tif, FIELD_PLANARCONFIG)) { - TIFFErrorExt(tif->tif_clientdata, module, - "Must set \"PlanarConfiguration\" before writing data"); - return (0); - } - } - if (tif->tif_dir.td_stripoffset == NULL && !TIFFSetupStrips(tif)) { - tif->tif_dir.td_nstrips = 0; - TIFFErrorExt(tif->tif_clientdata, module, "No space for %s arrays", - isTiled(tif) ? "tile" : "strip"); - return (0); - } - if (isTiled(tif)) - { - tif->tif_tilesize = TIFFTileSize(tif); - if (tif->tif_tilesize == 0) - return (0); - } - else - tif->tif_tilesize = (tmsize_t)(-1); - tif->tif_scanlinesize = TIFFScanlineSize(tif); - if (tif->tif_scanlinesize == 0) - return (0); - tif->tif_flags |= TIFF_BEENWRITING; - return (1); -} - -/* - * Setup the raw data buffer used for encoding. - */ -int -TIFFWriteBufferSetup(TIFF* tif, void* bp, tmsize_t size) -{ - static const char module[] = "TIFFWriteBufferSetup"; - - if (tif->tif_rawdata) { - if (tif->tif_flags & TIFF_MYBUFFER) { - _TIFFfree(tif->tif_rawdata); - tif->tif_flags &= ~TIFF_MYBUFFER; - } - tif->tif_rawdata = NULL; - } - if (size == (tmsize_t)(-1)) { - size = (isTiled(tif) ? - tif->tif_tilesize : TIFFStripSize(tif)); - /* - * Make raw data buffer at least 8K - */ - if (size < 8*1024) - size = 8*1024; - bp = NULL; /* NB: force malloc */ - } - if (bp == NULL) { - bp = _TIFFmalloc(size); - if (bp == NULL) { - TIFFErrorExt(tif->tif_clientdata, module, "No space for output buffer"); - return (0); - } - tif->tif_flags |= TIFF_MYBUFFER; - } else - tif->tif_flags &= ~TIFF_MYBUFFER; - tif->tif_rawdata = (uint8*) bp; - tif->tif_rawdatasize = size; - tif->tif_rawcc = 0; - tif->tif_rawcp = tif->tif_rawdata; - tif->tif_flags |= TIFF_BUFFERSETUP; - return (1); -} - -/* - * Grow the strip data structures by delta strips. - */ -static int -TIFFGrowStrips(TIFF* tif, uint32 delta, const char* module) -{ - TIFFDirectory *td = &tif->tif_dir; - uint64* new_stripoffset; - uint64* new_stripbytecount; - - assert(td->td_planarconfig == PLANARCONFIG_CONTIG); - new_stripoffset = (uint64*)_TIFFrealloc(td->td_stripoffset, - (td->td_nstrips + delta) * sizeof (uint64)); - new_stripbytecount = (uint64*)_TIFFrealloc(td->td_stripbytecount, - (td->td_nstrips + delta) * sizeof (uint64)); - if (new_stripoffset == NULL || new_stripbytecount == NULL) { - if (new_stripoffset) - _TIFFfree(new_stripoffset); - if (new_stripbytecount) - _TIFFfree(new_stripbytecount); - td->td_nstrips = 0; - TIFFErrorExt(tif->tif_clientdata, module, "No space to expand strip arrays"); - return (0); - } - td->td_stripoffset = new_stripoffset; - td->td_stripbytecount = new_stripbytecount; - _TIFFmemset(td->td_stripoffset + td->td_nstrips, - 0, delta*sizeof (uint64)); - _TIFFmemset(td->td_stripbytecount + td->td_nstrips, - 0, delta*sizeof (uint64)); - td->td_nstrips += delta; - tif->tif_flags |= TIFF_DIRTYDIRECT; - - return (1); -} - -/* - * Append the data to the specified strip. - */ -static int -TIFFAppendToStrip(TIFF* tif, uint32 strip, uint8* data, tmsize_t cc) -{ - static const char module[] = "TIFFAppendToStrip"; - TIFFDirectory *td = &tif->tif_dir; - uint64 m; - int64 old_byte_count = -1; - - if (td->td_stripoffset[strip] == 0 || tif->tif_curoff == 0) { - assert(td->td_nstrips > 0); - - if( td->td_stripbytecount[strip] != 0 - && td->td_stripoffset[strip] != 0 - && td->td_stripbytecount[strip] >= (uint64) cc ) - { - /* - * There is already tile data on disk, and the new tile - * data we have will fit in the same space. The only - * aspect of this that is risky is that there could be - * more data to append to this strip before we are done - * depending on how we are getting called. - */ - if (!SeekOK(tif, td->td_stripoffset[strip])) { - TIFFErrorExt(tif->tif_clientdata, module, - "Seek error at scanline %lu", - (unsigned long)tif->tif_row); - return (0); - } - } - else - { - /* - * Seek to end of file, and set that as our location to - * write this strip. - */ - td->td_stripoffset[strip] = TIFFSeekFile(tif, 0, SEEK_END); - tif->tif_flags |= TIFF_DIRTYSTRIP; - } - - tif->tif_curoff = td->td_stripoffset[strip]; - - /* - * We are starting a fresh strip/tile, so set the size to zero. - */ - old_byte_count = td->td_stripbytecount[strip]; - td->td_stripbytecount[strip] = 0; - } - - m = tif->tif_curoff+cc; - if (!(tif->tif_flags&TIFF_BIGTIFF)) - m = (uint32)m; - if ((mtif_curoff)||(m<(uint64)cc)) - { - TIFFErrorExt(tif->tif_clientdata, module, "Maximum TIFF file size exceeded"); - return (0); - } - if (!WriteOK(tif, data, cc)) { - TIFFErrorExt(tif->tif_clientdata, module, "Write error at scanline %lu", - (unsigned long) tif->tif_row); - return (0); - } - tif->tif_curoff = m; - td->td_stripbytecount[strip] += cc; - - if( (int64) td->td_stripbytecount[strip] != old_byte_count ) - tif->tif_flags |= TIFF_DIRTYSTRIP; - - return (1); -} - -/* - * Internal version of TIFFFlushData that can be - * called by ``encodestrip routines'' w/o concern - * for infinite recursion. - */ -int -TIFFFlushData1(TIFF* tif) -{ - if (tif->tif_rawcc > 0 && tif->tif_flags & TIFF_BUF4WRITE ) { - if (!isFillOrder(tif, tif->tif_dir.td_fillorder) && - (tif->tif_flags & TIFF_NOBITREV) == 0) - TIFFReverseBits((uint8*)tif->tif_rawdata, - tif->tif_rawcc); - if (!TIFFAppendToStrip(tif, - isTiled(tif) ? tif->tif_curtile : tif->tif_curstrip, - tif->tif_rawdata, tif->tif_rawcc)) - return (0); - tif->tif_rawcc = 0; - tif->tif_rawcp = tif->tif_rawdata; - } - return (1); -} - -/* - * Set the current write offset. This should only be - * used to set the offset to a known previous location - * (very carefully), or to 0 so that the next write gets - * appended to the end of the file. - */ -void -TIFFSetWriteOffset(TIFF* tif, toff_t off) -{ - tif->tif_curoff = off; -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ -/* - * Local Variables: - * mode: c - * c-basic-offset: 8 - * fill-column: 78 - * End: - */ -- cgit v1.2.3