tif_write.c | Explore in Territory

/*
 * 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 <stdio.h>

#define STRIPINCR …

#define WRITECHECKSTRIPS(tif, module) …
#define WRITECHECKTILES(tif, module) …
#define BUFFERCHECK(tif) …

static int TIFFGrowStrips(TIFF *tif, uint32_t delta, const char *module);
static int TIFFAppendToStrip(TIFF *tif, uint32_t strip, uint8_t *data,
                             tmsize_t cc);

int TIFFWriteScanline(TIFF *tif, void *buf, uint32_t row, uint16_t sample)
{ … }

/* Make sure that at the first attempt of rewriting a tile/strip, 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) */
static int _TIFFReserveLargeEnoughWriteBuffer(TIFF *tif, uint32_t strip_or_tile)
{ … }

/*
 * 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_t strip, void *data,
                               tmsize_t cc)
{ … }

/*
 * Write the supplied data to the specified strip.
 *
 * NB: Image length must be setup before writing.
 */
tmsize_t TIFFWriteRawStrip(TIFF *tif, uint32_t strip, void *data, tmsize_t cc)
{ … }

/*
 * 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_t x, uint32_t y, uint32_t z,
                       uint16_t s)
{ … }

/*
 * 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_t tile, void *data, tmsize_t 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_t tile, void *data, tmsize_t cc)
{ … }

#define isUnspecified …

int TIFFSetupStrips(TIFF *tif)
{ … }
#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)
{ … }

/*
 * Setup the raw data buffer used for encoding.
 */
int TIFFWriteBufferSetup(TIFF *tif, void *bp, tmsize_t size)
{ … }

/*
 * Grow the strip data structures by delta strips.
 */
static int TIFFGrowStrips(TIFF *tif, uint32_t delta, const char *module)
{ … }

/*
 * Append the data to the specified strip.
 */
static int TIFFAppendToStrip(TIFF *tif, uint32_t strip, uint8_t *data,
                             tmsize_t cc)
{ … }

/*
 * Internal version of TIFFFlushData that can be
 * called by ``encodestrip routines'' w/o concern
 * for infinite recursion.
 */
int TIFFFlushData1(TIFF *tif)
{ … }

/*
 * 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)
{ … }
chromium/third_party/pdfium/third_party/libtiff/tif_write.c
