aboutsummaryrefslogtreecommitdiff
path: root/lib/cximage-6.0/tiff/tif_tile.c
diff options
context:
space:
mode:
Diffstat (limited to 'lib/cximage-6.0/tiff/tif_tile.c')
-rw-r--r--lib/cximage-6.0/tiff/tif_tile.c219
1 files changed, 0 insertions, 219 deletions
diff --git a/lib/cximage-6.0/tiff/tif_tile.c b/lib/cximage-6.0/tiff/tif_tile.c
deleted file mode 100644
index fafb353354..0000000000
--- a/lib/cximage-6.0/tiff/tif_tile.c
+++ /dev/null
@@ -1,219 +0,0 @@
-/* $Header: /cvsroot/osrs/libtiff/libtiff/tif_tile.c,v 1.1.1.1 1999/07/27 21:50:27 mike Exp $ */
-
-/*
- * 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.
- */
-ttile_t
-TIFFComputeTile(TIFF* tif, uint32 x, uint32 y, uint32 z, tsample_t s)
-{
- TIFFDirectory *td = &tif->tif_dir;
- uint32 dx = td->td_tilewidth;
- uint32 dy = td->td_tilelength;
- uint32 dz = td->td_tiledepth;
- ttile_t tile = 1;
-
- if (td->td_imagedepth == 1)
- z = 0;
- if (dx == (uint32) -1)
- dx = td->td_imagewidth;
- if (dy == (uint32) -1)
- dy = td->td_imagelength;
- if (dz == (uint32) -1)
- dz = td->td_imagedepth;
- if (dx != 0 && dy != 0 && dz != 0) {
- uint32 xpt = TIFFhowmany(td->td_imagewidth, dx);
- uint32 ypt = TIFFhowmany(td->td_imagelength, dy);
- uint32 zpt = TIFFhowmany(td->td_imagedepth, dz);
-
- if (td->td_planarconfig == PLANARCONFIG_SEPARATE)
- tile = (xpt*ypt*zpt)*s +
- (xpt*ypt)*(z/dz) +
- xpt*(y/dy) +
- x/dx;
- else
- tile = (xpt*ypt)*(z/dz) + xpt*(y/dy) + x/dx + s;
- }
- return (tile);
-}
-
-/*
- * Check an (x,y,z,s) coordinate
- * against the image bounds.
- */
-int
-TIFFCheckTile(TIFF* tif, uint32 x, uint32 y, uint32 z, tsample_t s)
-{
- TIFFDirectory *td = &tif->tif_dir;
-
- if (x >= td->td_imagewidth) {
- TIFFError(tif->tif_name, "Col %ld out of range, max %lu",
- (long) x, (u_long) td->td_imagewidth);
- return (0);
- }
- if (y >= td->td_imagelength) {
- TIFFError(tif->tif_name, "Row %ld out of range, max %lu",
- (long) y, (u_long) td->td_imagelength);
- return (0);
- }
- if (z >= td->td_imagedepth) {
- TIFFError(tif->tif_name, "Depth %ld out of range, max %lu",
- (long) z, (u_long) td->td_imagedepth);
- return (0);
- }
- if (td->td_planarconfig == PLANARCONFIG_SEPARATE &&
- s >= td->td_samplesperpixel) {
- TIFFError(tif->tif_name, "Sample %d out of range, max %u",
- (int) s, td->td_samplesperpixel);
- return (0);
- }
- return (1);
-}
-
-/*
- * Compute how many tiles are in an image.
- */
-ttile_t
-TIFFNumberOfTiles(TIFF* tif)
-{
- TIFFDirectory *td = &tif->tif_dir;
- uint32 dx = td->td_tilewidth;
- uint32 dy = td->td_tilelength;
- uint32 dz = td->td_tiledepth;
- ttile_t ntiles;
-
- if (dx == (uint32) -1)
- dx = td->td_imagewidth;
- if (dy == (uint32) -1)
- dy = td->td_imagelength;
- if (dz == (uint32) -1)
- dz = td->td_imagedepth;
- ntiles = (dx == 0 || dy == 0 || dz == 0) ? 0 :
- (TIFFhowmany(td->td_imagewidth, dx) *
- TIFFhowmany(td->td_imagelength, dy) *
- TIFFhowmany(td->td_imagedepth, dz));
- if (td->td_planarconfig == PLANARCONFIG_SEPARATE)
- ntiles *= td->td_samplesperpixel;
- return (ntiles);
-}
-
-/*
- * Compute the # bytes in each row of a tile.
- */
-tsize_t
-TIFFTileRowSize(TIFF* tif)
-{
- TIFFDirectory *td = &tif->tif_dir;
- tsize_t rowsize;
-
- if (td->td_tilelength == 0 || td->td_tilewidth == 0)
- return ((tsize_t) 0);
- rowsize = td->td_bitspersample * td->td_tilewidth;
- if (td->td_planarconfig == PLANARCONFIG_CONTIG)
- rowsize *= td->td_samplesperpixel;
- return ((tsize_t) TIFFhowmany(rowsize, 8));
-}
-
-/*
- * Compute the # bytes in a variable length, row-aligned tile.
- */
-tsize_t
-TIFFVTileSize(TIFF* tif, uint32 nrows)
-{
- TIFFDirectory *td = &tif->tif_dir;
- tsize_t tilesize;
-
- if (td->td_tilelength == 0 || td->td_tilewidth == 0 ||
- td->td_tiledepth == 0)
- return ((tsize_t) 0);
-#ifdef YCBCR_SUPPORT
- if (td->td_planarconfig == PLANARCONFIG_CONTIG &&
- td->td_photometric == PHOTOMETRIC_YCBCR &&
- !isUpSampled(tif)) {
- /*
- * Packed YCbCr data contain one Cb+Cr for every
- * HorizontalSampling*VerticalSampling Y values.
- * Must also roundup width and height when calculating
- * since images that are not a multiple of the
- * horizontal/vertical subsampling area include
- * YCbCr data for the extended image.
- */
- tsize_t w =
- TIFFroundup(td->td_tilewidth, td->td_ycbcrsubsampling[0]);
- tsize_t rowsize = TIFFhowmany(w*td->td_bitspersample, 8);
- tsize_t samplingarea =
- td->td_ycbcrsubsampling[0]*td->td_ycbcrsubsampling[1];
- nrows = TIFFroundup(nrows, td->td_ycbcrsubsampling[1]);
- /* NB: don't need TIFFhowmany here 'cuz everything is rounded */
- tilesize = nrows*rowsize + 2*(nrows*rowsize / samplingarea);
- } else
-#endif
- tilesize = nrows * TIFFTileRowSize(tif);
- return ((tsize_t)(tilesize * td->td_tiledepth));
-}
-
-/*
- * Compute the # bytes in a row-aligned tile.
- */
-tsize_t
-TIFFTileSize(TIFF* tif)
-{
- return (TIFFVTileSize(tif, tif->tif_dir.td_tilelength));
-}
-
-/*
- * 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* tw, uint32* th)
-{
- (*tif->tif_deftilesize)(tif, tw, th);
-}
-
-void
-_TIFFDefaultTileSize(TIFF* tif, uint32* tw, uint32* th)
-{
- (void) tif;
- if (*(int32*) tw < 1)
- *tw = 256;
- if (*(int32*) th < 1)
- *th = 256;
- /* roundup to a multiple of 16 per the spec */
- if (*tw & 0xf)
- *tw = TIFFroundup(*tw, 16);
- if (*th & 0xf)
- *th = TIFFroundup(*th, 16);
-}
generated by cgit v1.2.3 (git 2.26.2) at 2025-01-13 18:46:11 +0000