summaryrefslogtreecommitdiff
path: root/tiff/libtiff/tif_tile.c
diff options
context:
space:
mode:
Diffstat (limited to 'tiff/libtiff/tif_tile.c')
-rwxr-xr-xtiff/libtiff/tif_tile.c299
1 files changed, 0 insertions, 299 deletions
diff --git a/tiff/libtiff/tif_tile.c b/tiff/libtiff/tif_tile.c
deleted file mode 100755
index 0ff7e85..0000000
--- a/tiff/libtiff/tif_tile.c
+++ /dev/null
@@ -1,299 +0,0 @@
-/* $Id: tif_tile.c,v 1.23 2012-06-06 05:33:55 fwarmerdam 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.
- */
-uint32
-TIFFComputeTile(TIFF* tif, uint32 x, uint32 y, uint32 z, uint16 s)
-{
- TIFFDirectory *td = &tif->tif_dir;
- uint32 dx = td->td_tilewidth;
- uint32 dy = td->td_tilelength;
- uint32 dz = td->td_tiledepth;
- uint32 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_32(td->td_imagewidth, dx);
- uint32 ypt = TIFFhowmany_32(td->td_imagelength, dy);
- uint32 zpt = TIFFhowmany_32(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;
- }
- return (tile);
-}
-
-/*
- * Check an (x,y,z,s) coordinate
- * against the image bounds.
- */
-int
-TIFFCheckTile(TIFF* tif, uint32 x, uint32 y, uint32 z, uint16 s)
-{
- TIFFDirectory *td = &tif->tif_dir;
-
- if (x >= td->td_imagewidth) {
- TIFFErrorExt(tif->tif_clientdata, tif->tif_name,
- "%lu: Col out of range, max %lu",
- (unsigned long) x,
- (unsigned long) (td->td_imagewidth - 1));
- return (0);
- }
- if (y >= td->td_imagelength) {
- TIFFErrorExt(tif->tif_clientdata, tif->tif_name,
- "%lu: Row out of range, max %lu",
- (unsigned long) y,
- (unsigned long) (td->td_imagelength - 1));
- return (0);
- }
- if (z >= td->td_imagedepth) {
- TIFFErrorExt(tif->tif_clientdata, tif->tif_name,
- "%lu: Depth out of range, max %lu",
- (unsigned long) z,
- (unsigned long) (td->td_imagedepth - 1));
- return (0);
- }
- if (td->td_planarconfig == PLANARCONFIG_SEPARATE &&
- s >= td->td_samplesperpixel) {
- TIFFErrorExt(tif->tif_clientdata, tif->tif_name,
- "%lu: Sample out of range, max %lu",
- (unsigned long) s,
- (unsigned long) (td->td_samplesperpixel - 1));
- return (0);
- }
- return (1);
-}
-
-/*
- * Compute how many tiles are in an image.
- */
-uint32
-TIFFNumberOfTiles(TIFF* tif)
-{
- TIFFDirectory *td = &tif->tif_dir;
- uint32 dx = td->td_tilewidth;
- uint32 dy = td->td_tilelength;
- uint32 dz = td->td_tiledepth;
- uint32 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 :
- _TIFFMultiply32(tif, _TIFFMultiply32(tif, TIFFhowmany_32(td->td_imagewidth, dx),
- TIFFhowmany_32(td->td_imagelength, dy),
- "TIFFNumberOfTiles"),
- TIFFhowmany_32(td->td_imagedepth, dz), "TIFFNumberOfTiles");
- if (td->td_planarconfig == PLANARCONFIG_SEPARATE)
- ntiles = _TIFFMultiply32(tif, ntiles, td->td_samplesperpixel,
- "TIFFNumberOfTiles");
- return (ntiles);
-}
-
-/*
- * Compute the # bytes in each row of a tile.
- */
-uint64
-TIFFTileRowSize64(TIFF* tif)
-{
- TIFFDirectory *td = &tif->tif_dir;
- uint64 rowsize;
-
- if (td->td_tilelength == 0 || td->td_tilewidth == 0)
- return (0);
- rowsize = _TIFFMultiply64(tif, td->td_bitspersample, td->td_tilewidth,
- "TIFFTileRowSize");
- if (td->td_planarconfig == PLANARCONFIG_CONTIG)
- rowsize = _TIFFMultiply64(tif, rowsize, td->td_samplesperpixel,
- "TIFFTileRowSize");
- return (TIFFhowmany8_64(rowsize));
-}
-tmsize_t
-TIFFTileRowSize(TIFF* tif)
-{
- static const char module[] = "TIFFTileRowSize";
- uint64 m;
- tmsize_t n;
- m=TIFFTileRowSize64(tif);
- n=(tmsize_t)m;
- if ((uint64)n!=m)
- {
- TIFFErrorExt(tif->tif_clientdata,module,"Integer overflow");
- n=0;
- }
- return(n);
-}
-
-/*
- * Compute the # bytes in a variable length, row-aligned tile.
- */
-uint64
-TIFFVTileSize64(TIFF* tif, uint32 nrows)
-{
- static const char module[] = "TIFFVTileSize64";
- TIFFDirectory *td = &tif->tif_dir;
- if (td->td_tilelength == 0 || td->td_tilewidth == 0 ||
- td->td_tiledepth == 0)
- return (0);
- if ((td->td_planarconfig==PLANARCONFIG_CONTIG)&&
- (td->td_photometric==PHOTOMETRIC_YCBCR)&&
- (td->td_samplesperpixel==3)&&
- (!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.
- */
- uint16 ycbcrsubsampling[2];
- uint16 samplingblock_samples;
- uint32 samplingblocks_hor;
- uint32 samplingblocks_ver;
- uint64 samplingrow_samples;
- uint64 samplingrow_size;
- TIFFGetFieldDefaulted(tif,TIFFTAG_YCBCRSUBSAMPLING,ycbcrsubsampling+0,
- ycbcrsubsampling+1);
- if ((ycbcrsubsampling[0] != 1 && ycbcrsubsampling[0] != 2 && ycbcrsubsampling[0] != 4)
- ||(ycbcrsubsampling[1] != 1 && ycbcrsubsampling[1] != 2 && ycbcrsubsampling[1] != 4))
- {
- TIFFErrorExt(tif->tif_clientdata,module,
- "Invalid YCbCr subsampling (%dx%d)",
- ycbcrsubsampling[0],
- ycbcrsubsampling[1] );
- return 0;
- }
- samplingblock_samples=ycbcrsubsampling[0]*ycbcrsubsampling[1]+2;
- samplingblocks_hor=TIFFhowmany_32(td->td_tilewidth,ycbcrsubsampling[0]);
- samplingblocks_ver=TIFFhowmany_32(nrows,ycbcrsubsampling[1]);
- samplingrow_samples=_TIFFMultiply64(tif,samplingblocks_hor,samplingblock_samples,module);
- samplingrow_size=TIFFhowmany8_64(_TIFFMultiply64(tif,samplingrow_samples,td->td_bitspersample,module));
- return(_TIFFMultiply64(tif,samplingrow_size,samplingblocks_ver,module));
- }
- else
- return(_TIFFMultiply64(tif,nrows,TIFFTileRowSize64(tif),module));
-}
-tmsize_t
-TIFFVTileSize(TIFF* tif, uint32 nrows)
-{
- static const char module[] = "TIFFVTileSize";
- uint64 m;
- tmsize_t n;
- m=TIFFVTileSize64(tif,nrows);
- n=(tmsize_t)m;
- if ((uint64)n!=m)
- {
- TIFFErrorExt(tif->tif_clientdata,module,"Integer overflow");
- n=0;
- }
- return(n);
-}
-
-/*
- * Compute the # bytes in a row-aligned tile.
- */
-uint64
-TIFFTileSize64(TIFF* tif)
-{
- return (TIFFVTileSize64(tif, tif->tif_dir.td_tilelength));
-}
-tmsize_t
-TIFFTileSize(TIFF* tif)
-{
- static const char module[] = "TIFFTileSize";
- uint64 m;
- tmsize_t n;
- m=TIFFTileSize64(tif);
- n=(tmsize_t)m;
- if ((uint64)n!=m)
- {
- TIFFErrorExt(tif->tif_clientdata,module,"Integer overflow");
- n=0;
- }
- return(n);
-}
-
-/*
- * 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_32(*tw, 16);
- if (*th & 0xf)
- *th = TIFFroundup_32(*th, 16);
-}
-
-/* vim: set ts=8 sts=8 sw=8 noet: */
-/*
- * Local Variables:
- * mode: c
- * c-basic-offset: 8
- * fill-column: 78
- * End:
- */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-09 15:26:58 +0000