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/* $Id: tif_write.c,v 1.16 2006/10/28 19:36:43 drolon Exp $ */
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* Copyright (c) 1988-1997 Sam Leffler
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* Copyright (c) 1991-1997 Silicon Graphics, Inc.
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* Permission to use, copy, modify, distribute, and sell this software and
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* its documentation for any purpose is hereby granted without fee, provided
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* that (i) the above copyright notices and this permission notice appear in
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* all copies of the software and related documentation, and (ii) the names of
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* Sam Leffler and Silicon Graphics may not be used in any advertising or
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* publicity relating to the software without the specific, prior written
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* permission of Sam Leffler and Silicon Graphics.
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* THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
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* WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
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* IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
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* ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
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* OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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* WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
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* LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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* Scanline-oriented Write Support
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#define STRIPINCR 20 /* expansion factor on strip array */
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#define WRITECHECKSTRIPS(tif, module) \
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(((tif)->tif_flags&TIFF_BEENWRITING) || TIFFWriteCheck((tif),0,module))
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#define WRITECHECKTILES(tif, module) \
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(((tif)->tif_flags&TIFF_BEENWRITING) || TIFFWriteCheck((tif),1,module))
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#define BUFFERCHECK(tif) \
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((((tif)->tif_flags & TIFF_BUFFERSETUP) && tif->tif_rawdata) || \
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TIFFWriteBufferSetup((tif), NULL, (tsize_t) -1))
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static int TIFFGrowStrips(TIFF*, int, const char*);
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static int TIFFAppendToStrip(TIFF*, tstrip_t, tidata_t, tsize_t);
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TIFFWriteScanline(TIFF* tif, tdata_t buf, uint32 row, tsample_t sample)
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static const char module[] = "TIFFWriteScanline";
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register TIFFDirectory *td;
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int status, imagegrew = 0;
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if (!WRITECHECKSTRIPS(tif, module))
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* Handle delayed allocation of data buffer. This
60
* permits it to be sized more intelligently (using
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* directory information).
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if (!BUFFERCHECK(tif))
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* Extend image length if needed
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* (but only for PlanarConfig=1).
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if (row >= td->td_imagelength) { /* extend image */
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if (td->td_planarconfig == PLANARCONFIG_SEPARATE) {
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TIFFErrorExt(tif->tif_clientdata, tif->tif_name,
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"Can not change \"ImageLength\" when using separate planes");
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td->td_imagelength = row+1;
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* Calculate strip and check for crossings.
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if (td->td_planarconfig == PLANARCONFIG_SEPARATE) {
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if (sample >= td->td_samplesperpixel) {
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TIFFErrorExt(tif->tif_clientdata, tif->tif_name,
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"%d: Sample out of range, max %d",
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sample, td->td_samplesperpixel);
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strip = sample*td->td_stripsperimage + row/td->td_rowsperstrip;
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strip = row / td->td_rowsperstrip;
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* Check strip array to make sure there's space. We don't support
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* dynamically growing files that have data organized in separate
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* bitplanes because it's too painful. In that case we require that
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* the imagelength be set properly before the first write (so that the
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* strips array will be fully allocated above).
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if (strip >= td->td_nstrips && !TIFFGrowStrips(tif, 1, module))
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if (strip != tif->tif_curstrip) {
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* Changing strips -- flush any data present.
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if (!TIFFFlushData(tif))
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tif->tif_curstrip = strip;
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* Watch out for a growing image. The value of strips/image
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* will initially be 1 (since it can't be deduced until the
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* imagelength is known).
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if (strip >= td->td_stripsperimage && imagegrew)
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td->td_stripsperimage =
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TIFFhowmany(td->td_imagelength,td->td_rowsperstrip);
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(strip % td->td_stripsperimage) * td->td_rowsperstrip;
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if ((tif->tif_flags & TIFF_CODERSETUP) == 0) {
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if (!(*tif->tif_setupencode)(tif))
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tif->tif_flags |= TIFF_CODERSETUP;
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tif->tif_rawcp = tif->tif_rawdata;
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if( td->td_stripbytecount[strip] > 0 )
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/* if we are writing over existing tiles, zero length */
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td->td_stripbytecount[strip] = 0;
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/* this forces TIFFAppendToStrip() to do a seek */
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if (!(*tif->tif_preencode)(tif, sample))
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tif->tif_flags |= TIFF_POSTENCODE;
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* Ensure the write is either sequential or at the
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* beginning of a strip (or that we can randomly
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* access the data -- i.e. no encoding).
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if (row != tif->tif_row) {
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if (row < tif->tif_row) {
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* Moving backwards within the same strip:
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* backup to the start and then decode
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tif->tif_row = (strip % td->td_stripsperimage) *
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tif->tif_rawcp = tif->tif_rawdata;
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* Seek forward to the desired row.
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if (!(*tif->tif_seek)(tif, row - tif->tif_row))
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/* swab if needed - note that source buffer will be altered */
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tif->tif_postdecode( tif, (tidata_t) buf, tif->tif_scanlinesize );
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status = (*tif->tif_encoderow)(tif, (tidata_t) buf,
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tif->tif_scanlinesize, sample);
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/* we are now poised at the beginning of the next row */
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tif->tif_row = row + 1;
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* Encode the supplied data and write it to the
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* NB: Image length must be setup before writing.
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TIFFWriteEncodedStrip(TIFF* tif, tstrip_t strip, tdata_t data, tsize_t cc)
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static const char module[] = "TIFFWriteEncodedStrip";
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TIFFDirectory *td = &tif->tif_dir;
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if (!WRITECHECKSTRIPS(tif, module))
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return ((tsize_t) -1);
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* Check strip array to make sure there's space.
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* We don't support dynamically growing files that
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* have data organized in separate bitplanes because
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* it's too painful. In that case we require that
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* the imagelength be set properly before the first
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* write (so that the strips array will be fully
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if (strip >= td->td_nstrips) {
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if (td->td_planarconfig == PLANARCONFIG_SEPARATE) {
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TIFFErrorExt(tif->tif_clientdata, tif->tif_name,
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"Can not grow image by strips when using separate planes");
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return ((tsize_t) -1);
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if (!TIFFGrowStrips(tif, 1, module))
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return ((tsize_t) -1);
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td->td_stripsperimage =
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TIFFhowmany(td->td_imagelength, td->td_rowsperstrip);
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* Handle delayed allocation of data buffer. This
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* permits it to be sized according to the directory
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if (!BUFFERCHECK(tif))
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return ((tsize_t) -1);
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tif->tif_curstrip = strip;
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tif->tif_row = (strip % td->td_stripsperimage) * td->td_rowsperstrip;
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if ((tif->tif_flags & TIFF_CODERSETUP) == 0) {
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if (!(*tif->tif_setupencode)(tif))
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return ((tsize_t) -1);
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tif->tif_flags |= TIFF_CODERSETUP;
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tif->tif_rawcp = tif->tif_rawdata;
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if( td->td_stripbytecount[strip] > 0 )
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/* if we are writing over existing tiles, zero length. */
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td->td_stripbytecount[strip] = 0;
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/* this forces TIFFAppendToStrip() to do a seek */
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tif->tif_flags &= ~TIFF_POSTENCODE;
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sample = (tsample_t)(strip / td->td_stripsperimage);
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if (!(*tif->tif_preencode)(tif, sample))
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return ((tsize_t) -1);
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/* swab if needed - note that source buffer will be altered */
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tif->tif_postdecode( tif, (tidata_t) data, cc );
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if (!(*tif->tif_encodestrip)(tif, (tidata_t) data, cc, sample))
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return ((tsize_t) 0);
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if (!(*tif->tif_postencode)(tif))
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return ((tsize_t) -1);
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if (!isFillOrder(tif, td->td_fillorder) &&
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(tif->tif_flags & TIFF_NOBITREV) == 0)
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TIFFReverseBits(tif->tif_rawdata, tif->tif_rawcc);
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if (tif->tif_rawcc > 0 &&
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!TIFFAppendToStrip(tif, strip, tif->tif_rawdata, tif->tif_rawcc))
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return ((tsize_t) -1);
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tif->tif_rawcp = tif->tif_rawdata;
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* Write the supplied data to the specified strip.
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* NB: Image length must be setup before writing.
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TIFFWriteRawStrip(TIFF* tif, tstrip_t strip, tdata_t data, tsize_t cc)
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static const char module[] = "TIFFWriteRawStrip";
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TIFFDirectory *td = &tif->tif_dir;
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if (!WRITECHECKSTRIPS(tif, module))
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return ((tsize_t) -1);
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* Check strip array to make sure there's space.
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* We don't support dynamically growing files that
276
* have data organized in separate bitplanes because
277
* it's too painful. In that case we require that
278
* the imagelength be set properly before the first
279
* write (so that the strips array will be fully
282
if (strip >= td->td_nstrips) {
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if (td->td_planarconfig == PLANARCONFIG_SEPARATE) {
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TIFFErrorExt(tif->tif_clientdata, tif->tif_name,
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"Can not grow image by strips when using separate planes");
286
return ((tsize_t) -1);
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* Watch out for a growing image. The value of
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* strips/image will initially be 1 (since it
291
* can't be deduced until the imagelength is known).
293
if (strip >= td->td_stripsperimage)
294
td->td_stripsperimage =
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TIFFhowmany(td->td_imagelength,td->td_rowsperstrip);
296
if (!TIFFGrowStrips(tif, 1, module))
297
return ((tsize_t) -1);
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tif->tif_curstrip = strip;
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tif->tif_row = (strip % td->td_stripsperimage) * td->td_rowsperstrip;
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return (TIFFAppendToStrip(tif, strip, (tidata_t) data, cc) ?
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* Write and compress a tile of data. The
307
* tile is selected by the (x,y,z,s) coordinates.
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TIFFWriteTile(TIFF* tif,
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tdata_t buf, uint32 x, uint32 y, uint32 z, tsample_t s)
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if (!TIFFCheckTile(tif, x, y, z, s))
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* NB: A tile size of -1 is used instead of tif_tilesize knowing
317
* that TIFFWriteEncodedTile will clamp this to the tile size.
318
* This is done because the tile size may not be defined until
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* after the output buffer is setup in TIFFWriteBufferSetup.
321
return (TIFFWriteEncodedTile(tif,
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TIFFComputeTile(tif, x, y, z, s), buf, (tsize_t) -1));
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* Encode the supplied data and write it to the
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* specified tile. There must be space for the
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* data. The function clamps individual writes
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* to a tile to the tile size, but does not (and
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* can not) check that multiple writes to the same
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* tile do not write more than tile size data.
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* NB: Image length must be setup before writing; this
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* interface does not support automatically growing
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* the image on each write (as TIFFWriteScanline does).
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TIFFWriteEncodedTile(TIFF* tif, ttile_t tile, tdata_t data, tsize_t cc)
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static const char module[] = "TIFFWriteEncodedTile";
344
if (!WRITECHECKTILES(tif, module))
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return ((tsize_t) -1);
347
if (tile >= td->td_nstrips) {
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TIFFErrorExt(tif->tif_clientdata, module, "%s: Tile %lu out of range, max %lu",
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tif->tif_name, (unsigned long) tile, (unsigned long) td->td_nstrips);
350
return ((tsize_t) -1);
353
* Handle delayed allocation of data buffer. This
354
* permits it to be sized more intelligently (using
355
* directory information).
357
if (!BUFFERCHECK(tif))
358
return ((tsize_t) -1);
359
tif->tif_curtile = tile;
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tif->tif_rawcp = tif->tif_rawdata;
364
if( td->td_stripbytecount[tile] > 0 )
366
/* if we are writing over existing tiles, zero length. */
367
td->td_stripbytecount[tile] = 0;
369
/* this forces TIFFAppendToStrip() to do a seek */
374
* Compute tiles per row & per column to compute
375
* current row and column
377
tif->tif_row = (tile % TIFFhowmany(td->td_imagelength, td->td_tilelength))
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tif->tif_col = (tile % TIFFhowmany(td->td_imagewidth, td->td_tilewidth))
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if ((tif->tif_flags & TIFF_CODERSETUP) == 0) {
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if (!(*tif->tif_setupencode)(tif))
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return ((tsize_t) -1);
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tif->tif_flags |= TIFF_CODERSETUP;
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tif->tif_flags &= ~TIFF_POSTENCODE;
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sample = (tsample_t)(tile/td->td_stripsperimage);
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if (!(*tif->tif_preencode)(tif, sample))
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return ((tsize_t) -1);
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* Clamp write amount to the tile size. This is mostly
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* done so that callers can pass in some large number
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* (e.g. -1) and have the tile size used instead.
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if ( cc < 1 || cc > tif->tif_tilesize)
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cc = tif->tif_tilesize;
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/* swab if needed - note that source buffer will be altered */
400
tif->tif_postdecode( tif, (tidata_t) data, cc );
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if (!(*tif->tif_encodetile)(tif, (tidata_t) data, cc, sample))
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return ((tsize_t) 0);
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if (!(*tif->tif_postencode)(tif))
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return ((tsize_t) -1);
406
if (!isFillOrder(tif, td->td_fillorder) &&
407
(tif->tif_flags & TIFF_NOBITREV) == 0)
408
TIFFReverseBits((unsigned char *)tif->tif_rawdata, tif->tif_rawcc);
409
if (tif->tif_rawcc > 0 && !TIFFAppendToStrip(tif, tile,
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tif->tif_rawdata, tif->tif_rawcc))
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return ((tsize_t) -1);
413
tif->tif_rawcp = tif->tif_rawdata;
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* Write the supplied data to the specified strip.
419
* There must be space for the data; we don't check
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* NB: Image length must be setup before writing; this
423
* interface does not support automatically growing
424
* the image on each write (as TIFFWriteScanline does).
427
TIFFWriteRawTile(TIFF* tif, ttile_t tile, tdata_t data, tsize_t cc)
429
static const char module[] = "TIFFWriteRawTile";
431
if (!WRITECHECKTILES(tif, module))
432
return ((tsize_t) -1);
433
if (tile >= tif->tif_dir.td_nstrips) {
434
TIFFErrorExt(tif->tif_clientdata, module, "%s: Tile %lu out of range, max %lu",
435
tif->tif_name, (unsigned long) tile,
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(unsigned long) tif->tif_dir.td_nstrips);
437
return ((tsize_t) -1);
439
return (TIFFAppendToStrip(tif, tile, (tidata_t) data, cc) ?
443
#define isUnspecified(tif, f) \
444
(TIFFFieldSet(tif,f) && (tif)->tif_dir.td_imagelength == 0)
447
TIFFSetupStrips(TIFF* tif)
449
TIFFDirectory* td = &tif->tif_dir;
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td->td_stripsperimage =
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isUnspecified(tif, FIELD_TILEDIMENSIONS) ?
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td->td_samplesperpixel : TIFFNumberOfTiles(tif);
456
td->td_stripsperimage =
457
isUnspecified(tif, FIELD_ROWSPERSTRIP) ?
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td->td_samplesperpixel : TIFFNumberOfStrips(tif);
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td->td_nstrips = td->td_stripsperimage;
460
if (td->td_planarconfig == PLANARCONFIG_SEPARATE)
461
td->td_stripsperimage /= td->td_samplesperpixel;
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td->td_stripoffset = (uint32 *)
463
_TIFFmalloc(td->td_nstrips * sizeof (uint32));
464
td->td_stripbytecount = (uint32 *)
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_TIFFmalloc(td->td_nstrips * sizeof (uint32));
466
if (td->td_stripoffset == NULL || td->td_stripbytecount == NULL)
469
* Place data at the end-of-file
470
* (by setting offsets to zero).
472
_TIFFmemset(td->td_stripoffset, 0, td->td_nstrips*sizeof (uint32));
473
_TIFFmemset(td->td_stripbytecount, 0, td->td_nstrips*sizeof (uint32));
474
TIFFSetFieldBit(tif, FIELD_STRIPOFFSETS);
475
TIFFSetFieldBit(tif, FIELD_STRIPBYTECOUNTS);
481
* Verify file is writable and that the directory
482
* information is setup properly. In doing the latter
483
* we also "freeze" the state of the directory so
484
* that important information is not changed.
487
TIFFWriteCheck(TIFF* tif, int tiles, const char* module)
489
if (tif->tif_mode == O_RDONLY) {
490
TIFFErrorExt(tif->tif_clientdata, module, "%s: File not open for writing",
494
if (tiles ^ isTiled(tif)) {
495
TIFFErrorExt(tif->tif_clientdata, tif->tif_name, tiles ?
496
"Can not write tiles to a stripped image" :
497
"Can not write scanlines to a tiled image");
502
* On the first write verify all the required information
503
* has been setup and initialize any data structures that
504
* had to wait until directory information was set.
505
* Note that a lot of our work is assumed to remain valid
506
* because we disallow any of the important parameters
507
* from changing after we start writing (i.e. once
508
* TIFF_BEENWRITING is set, TIFFSetField will only allow
509
* the image's length to be changed).
511
if (!TIFFFieldSet(tif, FIELD_IMAGEDIMENSIONS)) {
512
TIFFErrorExt(tif->tif_clientdata, module,
513
"%s: Must set \"ImageWidth\" before writing data",
517
if (tif->tif_dir.td_samplesperpixel == 1) {
519
* Planarconfiguration is irrelevant in case of single band
520
* images and need not be included. We will set it anyway,
521
* because this field is used in other parts of library even
522
* in the single band case.
524
tif->tif_dir.td_planarconfig = PLANARCONFIG_CONTIG;
526
if (!TIFFFieldSet(tif, FIELD_PLANARCONFIG)) {
527
TIFFErrorExt(tif->tif_clientdata, module,
528
"%s: Must set \"PlanarConfiguration\" before writing data",
533
if (tif->tif_dir.td_stripoffset == NULL && !TIFFSetupStrips(tif)) {
534
tif->tif_dir.td_nstrips = 0;
535
TIFFErrorExt(tif->tif_clientdata, module, "%s: No space for %s arrays",
536
tif->tif_name, isTiled(tif) ? "tile" : "strip");
539
tif->tif_tilesize = isTiled(tif) ? TIFFTileSize(tif) : (tsize_t) -1;
540
tif->tif_scanlinesize = TIFFScanlineSize(tif);
541
tif->tif_flags |= TIFF_BEENWRITING;
546
* Setup the raw data buffer used for encoding.
549
TIFFWriteBufferSetup(TIFF* tif, tdata_t bp, tsize_t size)
551
static const char module[] = "TIFFWriteBufferSetup";
553
if (tif->tif_rawdata) {
554
if (tif->tif_flags & TIFF_MYBUFFER) {
555
_TIFFfree(tif->tif_rawdata);
556
tif->tif_flags &= ~TIFF_MYBUFFER;
558
tif->tif_rawdata = NULL;
560
if (size == (tsize_t) -1) {
561
size = (isTiled(tif) ?
562
tif->tif_tilesize : TIFFStripSize(tif));
564
* Make raw data buffer at least 8K
568
bp = NULL; /* NB: force malloc */
571
bp = _TIFFmalloc(size);
573
TIFFErrorExt(tif->tif_clientdata, module, "%s: No space for output buffer",
577
tif->tif_flags |= TIFF_MYBUFFER;
579
tif->tif_flags &= ~TIFF_MYBUFFER;
580
tif->tif_rawdata = (tidata_t) bp;
581
tif->tif_rawdatasize = size;
583
tif->tif_rawcp = tif->tif_rawdata;
584
tif->tif_flags |= TIFF_BUFFERSETUP;
589
* Grow the strip data structures by delta strips.
592
TIFFGrowStrips(TIFF* tif, int delta, const char* module)
594
TIFFDirectory *td = &tif->tif_dir;
595
uint32 *new_stripoffset, *new_stripbytecount;
597
assert(td->td_planarconfig == PLANARCONFIG_CONTIG);
598
new_stripoffset = (uint32*)_TIFFrealloc(td->td_stripoffset,
599
(td->td_nstrips + delta) * sizeof (uint32));
600
new_stripbytecount = (uint32*)_TIFFrealloc(td->td_stripbytecount,
601
(td->td_nstrips + delta) * sizeof (uint32));
602
if (new_stripoffset == NULL || new_stripbytecount == NULL) {
604
_TIFFfree(new_stripoffset);
605
if (new_stripbytecount)
606
_TIFFfree(new_stripbytecount);
608
TIFFErrorExt(tif->tif_clientdata, module, "%s: No space to expand strip arrays",
612
td->td_stripoffset = new_stripoffset;
613
td->td_stripbytecount = new_stripbytecount;
614
_TIFFmemset(td->td_stripoffset + td->td_nstrips,
615
0, delta*sizeof (uint32));
616
_TIFFmemset(td->td_stripbytecount + td->td_nstrips,
617
0, delta*sizeof (uint32));
618
td->td_nstrips += delta;
623
* Append the data to the specified strip.
626
TIFFAppendToStrip(TIFF* tif, tstrip_t strip, tidata_t data, tsize_t cc)
628
TIFFDirectory *td = &tif->tif_dir;
629
static const char module[] = "TIFFAppendToStrip";
631
if (td->td_stripoffset[strip] == 0 || tif->tif_curoff == 0) {
633
* No current offset, set the current strip.
635
assert(td->td_nstrips > 0);
636
if (td->td_stripoffset[strip] != 0) {
638
* Prevent overlapping of the data chunks. We need
639
* this to enable in place updating of the compressed
640
* images. Larger blocks will be moved at the end of
641
* the file without any optimization of the spare
642
* space, so such scheme is not too much effective.
644
if (td->td_stripbytecountsorted) {
645
if (strip == td->td_nstrips - 1
646
|| td->td_stripoffset[strip + 1] <
647
td->td_stripoffset[strip] + cc) {
648
td->td_stripoffset[strip] =
649
TIFFSeekFile(tif, (toff_t)0,
654
for (i = 0; i < td->td_nstrips; i++) {
655
if (td->td_stripoffset[i] >
656
td->td_stripoffset[strip]
657
&& td->td_stripoffset[i] <
658
td->td_stripoffset[strip] + cc) {
659
td->td_stripoffset[strip] =
667
if (!SeekOK(tif, td->td_stripoffset[strip])) {
668
TIFFErrorExt(tif->tif_clientdata, module,
669
"%s: Seek error at scanline %lu",
671
(unsigned long)tif->tif_row);
675
td->td_stripoffset[strip] =
676
TIFFSeekFile(tif, (toff_t) 0, SEEK_END);
677
tif->tif_curoff = td->td_stripoffset[strip];
680
if (!WriteOK(tif, data, cc)) {
681
TIFFErrorExt(tif->tif_clientdata, module, "%s: Write error at scanline %lu",
682
tif->tif_name, (unsigned long) tif->tif_row);
685
tif->tif_curoff += cc;
686
td->td_stripbytecount[strip] += cc;
691
* Internal version of TIFFFlushData that can be
692
* called by ``encodestrip routines'' w/o concern
693
* for infinite recursion.
696
TIFFFlushData1(TIFF* tif)
698
if (tif->tif_rawcc > 0) {
699
if (!isFillOrder(tif, tif->tif_dir.td_fillorder) &&
700
(tif->tif_flags & TIFF_NOBITREV) == 0)
701
TIFFReverseBits((unsigned char *)tif->tif_rawdata,
703
if (!TIFFAppendToStrip(tif,
704
isTiled(tif) ? tif->tif_curtile : tif->tif_curstrip,
705
tif->tif_rawdata, tif->tif_rawcc))
708
tif->tif_rawcp = tif->tif_rawdata;
714
* Set the current write offset. This should only be
715
* used to set the offset to a known previous location
716
* (very carefully), or to 0 so that the next write gets
717
* appended to the end of the file.
720
TIFFSetWriteOffset(TIFF* tif, toff_t off)
722
tif->tif_curoff = off;
725
/* vim: set ts=8 sts=8 sw=8 noet: */
added
removed
FreeImage/Source/LibTIFF/tif_write.c
