chromium/third_party/pdfium/third_party/libtiff/tif_tile.c

/*
 * Copyright (c) 1991-1997 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.
 *
 * Tiled Image Support Routines.
 */
#include "tiffiop.h"

/*
 * Compute which tile an (x,y,z,s) value is in.
 */
uint32_t TIFFComputeTile(TIFF *tif, uint32_t x, uint32_t y, uint32_t z,
                         uint16_t s)
{ … }

/*
 * Check an (x,y,z,s) coordinate
 * against the image bounds.
 */
int TIFFCheckTile(TIFF *tif, uint32_t x, uint32_t y, uint32_t z, uint16_t s)
{ … }

/*
 * Compute how many tiles are in an image.
 */
uint32_t TIFFNumberOfTiles(TIFF *tif)
{ … }

/*
 * Compute the # bytes in each row of a tile.
 */
uint64_t TIFFTileRowSize64(TIFF *tif)
{ … }
tmsize_t TIFFTileRowSize(TIFF *tif)
{ … }

/*
 * Compute the # bytes in a variable length, row-aligned tile.
 */
uint64_t TIFFVTileSize64(TIFF *tif, uint32_t nrows)
{ … }
tmsize_t TIFFVTileSize(TIFF *tif, uint32_t nrows)
{ … }

/*
 * Compute the # bytes in a row-aligned tile.
 */
uint64_t TIFFTileSize64(TIFF *tif)
{ … }
tmsize_t TIFFTileSize(TIFF *tif)
{ … }

/*
 * Compute a default tile size based on the image
 * characteristics and a requested value.  If a
 * request is <1 then we choose a size according
 * to certain heuristics.
 */
void TIFFDefaultTileSize(TIFF *tif, uint32_t *tw, uint32_t *th)
{ … }

void _TIFFDefaultTileSize(TIFF *tif, uint32_t *tw, uint32_t *th)
{ … }