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authorLiang Qi <liang.qi@digia.com>2013-03-04 10:22:52 +0100
committerThe Qt Project <gerrit-noreply@qt-project.org>2013-04-05 11:07:49 +0200
commit8b2b1b0f63d258ec5ea753cd44531731c0bdece8 (patch)
tree2c651bf7ba4d34ff8314d180eec11c7a7c3bbd52 /src/3rdparty/libtiff/libtiff/tif_tile.c
parent7a10649ea7b8963d66c14a0391b7356fc7d9ce9d (diff)
Upgrading libtiff: Adding clean copy of libtiff 4.0.3
This commit removes the previous version of the bundled libtiff (3.9.2), as well as all local modifications to it. It adds an unmodified copy of the official libtiff source distribution, except that various extraneous files have been removed, as usual. The patches required to build it in Qt will follow in separate commit(s). Task-number: QTBUG-25409 Change-Id: If47e02c25ce1a2b3b47eff94a875e2abea0c7e1c Reviewed-by: aavit <eirik.aavitsland@digia.com>
Diffstat (limited to 'src/3rdparty/libtiff/libtiff/tif_tile.c')
-rw-r--r--src/3rdparty/libtiff/libtiff/tif_tile.c204
1 files changed, 115 insertions, 89 deletions
diff --git a/src/3rdparty/libtiff/libtiff/tif_tile.c b/src/3rdparty/libtiff/libtiff/tif_tile.c
index 454fe5c..0ff7e85 100644
--- a/src/3rdparty/libtiff/libtiff/tif_tile.c
+++ b/src/3rdparty/libtiff/libtiff/tif_tile.c
@@ -1,4 +1,4 @@
-/* $Id: tif_tile.c,v 1.12 2006/02/09 16:15:43 dron Exp $ */
+/* $Id: tif_tile.c,v 1.23 2012-06-06 05:33:55 fwarmerdam Exp $ */
/*
* Copyright (c) 1991-1997 Sam Leffler
@@ -31,47 +31,17 @@
*/
#include "tiffiop.h"
-static uint32
-summarize(TIFF* tif, size_t summand1, size_t summand2, const char* where)
-{
- /*
- * XXX: We are using casting to uint32 here, because sizeof(size_t)
- * may be larger than sizeof(uint32) on 64-bit architectures.
- */
- uint32 bytes = summand1 + summand2;
-
- if (bytes - summand1 != summand2) {
- TIFFErrorExt(tif->tif_clientdata, tif->tif_name, "Integer overflow in %s", where);
- bytes = 0;
- }
-
- return (bytes);
-}
-
-static uint32
-multiply(TIFF* tif, size_t nmemb, size_t elem_size, const char* where)
-{
- uint32 bytes = nmemb * elem_size;
-
- if (elem_size && bytes / elem_size != nmemb) {
- TIFFErrorExt(tif->tif_clientdata, tif->tif_name, "Integer overflow in %s", where);
- bytes = 0;
- }
-
- return (bytes);
-}
-
/*
* 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)
+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;
- ttile_t tile = 1;
+ uint32 tile = 1;
if (td->td_imagedepth == 1)
z = 0;
@@ -82,9 +52,9 @@ TIFFComputeTile(TIFF* tif, uint32 x, uint32 y, uint32 z, tsample_t s)
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);
+ 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 +
@@ -102,7 +72,7 @@ TIFFComputeTile(TIFF* tif, uint32 x, uint32 y, uint32 z, tsample_t s)
* against the image bounds.
*/
int
-TIFFCheckTile(TIFF* tif, uint32 x, uint32 y, uint32 z, tsample_t s)
+TIFFCheckTile(TIFF* tif, uint32 x, uint32 y, uint32 z, uint16 s)
{
TIFFDirectory *td = &tif->tif_dir;
@@ -141,14 +111,14 @@ TIFFCheckTile(TIFF* tif, uint32 x, uint32 y, uint32 z, tsample_t s)
/*
* Compute how many tiles are in an image.
*/
-ttile_t
+uint32
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;
+ uint32 ntiles;
if (dx == (uint32) -1)
dx = td->td_imagewidth;
@@ -157,50 +127,66 @@ TIFFNumberOfTiles(TIFF* tif)
if (dz == (uint32) -1)
dz = td->td_imagedepth;
ntiles = (dx == 0 || dy == 0 || dz == 0) ? 0 :
- multiply(tif, multiply(tif, TIFFhowmany(td->td_imagewidth, dx),
- TIFFhowmany(td->td_imagelength, dy),
- "TIFFNumberOfTiles"),
- TIFFhowmany(td->td_imagedepth, dz), "TIFFNumberOfTiles");
+ _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 = multiply(tif, ntiles, td->td_samplesperpixel,
- "TIFFNumberOfTiles");
+ ntiles = _TIFFMultiply32(tif, ntiles, td->td_samplesperpixel,
+ "TIFFNumberOfTiles");
return (ntiles);
}
/*
* Compute the # bytes in each row of a tile.
*/
-tsize_t
-TIFFTileRowSize(TIFF* tif)
+uint64
+TIFFTileRowSize64(TIFF* tif)
{
TIFFDirectory *td = &tif->tif_dir;
- tsize_t rowsize;
-
+ uint64 rowsize;
+
if (td->td_tilelength == 0 || td->td_tilewidth == 0)
- return ((tsize_t) 0);
- rowsize = multiply(tif, td->td_bitspersample, td->td_tilewidth,
- "TIFFTileRowSize");
+ return (0);
+ rowsize = _TIFFMultiply64(tif, td->td_bitspersample, td->td_tilewidth,
+ "TIFFTileRowSize");
if (td->td_planarconfig == PLANARCONFIG_CONTIG)
- rowsize = multiply(tif, rowsize, td->td_samplesperpixel,
- "TIFFTileRowSize");
- return ((tsize_t) TIFFhowmany8(rowsize));
+ 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.
*/
-tsize_t
-TIFFVTileSize(TIFF* tif, uint32 nrows)
+uint64
+TIFFVTileSize64(TIFF* tif, uint32 nrows)
{
+ static const char module[] = "TIFFVTileSize64";
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);
- if (td->td_planarconfig == PLANARCONFIG_CONTIG &&
- td->td_photometric == PHOTOMETRIC_YCBCR &&
- !isUpSampled(tif)) {
+ 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.
@@ -209,38 +195,71 @@ TIFFVTileSize(TIFF* tif, uint32 nrows)
* 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 =
- TIFFhowmany8(multiply(tif, w, td->td_bitspersample,
- "TIFFVTileSize"));
- tsize_t samplingarea =
- td->td_ycbcrsubsampling[0]*td->td_ycbcrsubsampling[1];
- if (samplingarea == 0) {
- TIFFErrorExt(tif->tif_clientdata, tif->tif_name, "Invalid YCbCr subsampling");
+ 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;
}
- nrows = TIFFroundup(nrows, td->td_ycbcrsubsampling[1]);
- /* NB: don't need TIFFhowmany here 'cuz everything is rounded */
- tilesize = multiply(tif, nrows, rowsize, "TIFFVTileSize");
- tilesize = summarize(tif, tilesize,
- multiply(tif, 2, tilesize / samplingarea,
- "TIFFVTileSize"),
- "TIFFVTileSize");
- } else
- tilesize = multiply(tif, nrows, TIFFTileRowSize(tif),
- "TIFFVTileSize");
- return ((tsize_t)
- multiply(tif, tilesize, td->td_tiledepth, "TIFFVTileSize"));
+ 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.
*/
-tsize_t
+uint64
+TIFFTileSize64(TIFF* tif)
+{
+ return (TIFFVTileSize64(tif, tif->tif_dir.td_tilelength));
+}
+tmsize_t
TIFFTileSize(TIFF* tif)
{
- return (TIFFVTileSize(tif, tif->tif_dir.td_tilelength));
+ 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);
}
/*
@@ -265,9 +284,16 @@ _TIFFDefaultTileSize(TIFF* tif, uint32* tw, uint32* th)
*th = 256;
/* roundup to a multiple of 16 per the spec */
if (*tw & 0xf)
- *tw = TIFFroundup(*tw, 16);
+ *tw = TIFFroundup_32(*tw, 16);
if (*th & 0xf)
- *th = TIFFroundup(*th, 16);
+ *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:
+ */