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Diffstat (limited to 'src/3rdparty/libtiff/libtiff/tif_getimage.c')
-rw-r--r--src/3rdparty/libtiff/libtiff/tif_getimage.c159
1 files changed, 110 insertions, 49 deletions
diff --git a/src/3rdparty/libtiff/libtiff/tif_getimage.c b/src/3rdparty/libtiff/libtiff/tif_getimage.c
index a85273c..f49b73f 100644
--- a/src/3rdparty/libtiff/libtiff/tif_getimage.c
+++ b/src/3rdparty/libtiff/libtiff/tif_getimage.c
@@ -1,4 +1,4 @@
-/* $Id: tif_getimage.c,v 1.82 2012-06-06 00:17:49 fwarmerdam Exp $ */
+/* $Id: tif_getimage.c,v 1.90 2015-06-17 01:34:08 bfriesen Exp $ */
/*
* Copyright (c) 1991-1997 Sam Leffler
@@ -182,8 +182,23 @@ TIFFRGBAImageOK(TIFF* tif, char emsg[1024])
"Planarconfiguration", td->td_planarconfig);
return (0);
}
+ if( td->td_samplesperpixel != 3 )
+ {
+ sprintf(emsg,
+ "Sorry, can not handle image with %s=%d",
+ "Samples/pixel", td->td_samplesperpixel);
+ return 0;
+ }
break;
case PHOTOMETRIC_CIELAB:
+ if( td->td_samplesperpixel != 3 || td->td_bitspersample != 8 )
+ {
+ sprintf(emsg,
+ "Sorry, can not handle image with %s=%d and %s=%d",
+ "Samples/pixel", td->td_samplesperpixel,
+ "Bits/sample", td->td_bitspersample);
+ return 0;
+ }
break;
default:
sprintf(emsg, "Sorry, can not handle image with %s=%d",
@@ -597,6 +612,10 @@ gtTileContig(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h)
int32 fromskew, toskew;
uint32 nrow;
int ret = 1, flip;
+ uint32 this_tw, tocol;
+ int32 this_toskew, leftmost_toskew;
+ int32 leftmost_fromskew;
+ uint32 leftmost_tw;
buf = (unsigned char*) _TIFFmalloc(TIFFTileSize(tif));
if (buf == 0) {
@@ -617,37 +636,50 @@ gtTileContig(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h)
toskew = -(int32)(tw - w);
}
+ /*
+ * Leftmost tile is clipped on left side if col_offset > 0.
+ */
+ leftmost_fromskew = img->col_offset % tw;
+ leftmost_tw = tw - leftmost_fromskew;
+ leftmost_toskew = toskew + leftmost_fromskew;
for (row = 0; row < h; row += nrow)
{
rowstoread = th - (row + img->row_offset) % th;
nrow = (row + rowstoread > h ? h - row : rowstoread);
- for (col = 0; col < w; col += tw)
+ fromskew = leftmost_fromskew;
+ this_tw = leftmost_tw;
+ this_toskew = leftmost_toskew;
+ tocol = 0;
+ col = img->col_offset;
+ while (tocol < w)
{
- if (TIFFReadTile(tif, buf, col+img->col_offset,
+ if (TIFFReadTile(tif, buf, col,
row+img->row_offset, 0, 0)==(tmsize_t)(-1) && img->stoponerr)
{
ret = 0;
break;
}
-
- pos = ((row+img->row_offset) % th) * TIFFTileRowSize(tif);
-
- if (col + tw > w)
- {
- /*
- * Tile is clipped horizontally. Calculate
- * visible portion and skewing factors.
- */
- uint32 npix = w - col;
- fromskew = tw - npix;
- (*put)(img, raster+y*w+col, col, y,
- npix, nrow, fromskew, toskew + fromskew, buf + pos);
- }
- else
- {
- (*put)(img, raster+y*w+col, col, y, tw, nrow, 0, toskew, buf + pos);
- }
- }
+ pos = ((row+img->row_offset) % th) * TIFFTileRowSize(tif) + \
+ ((tmsize_t) fromskew * img->samplesperpixel);
+ if (tocol + this_tw > w)
+ {
+ /*
+ * Rightmost tile is clipped on right side.
+ */
+ fromskew = tw - (w - tocol);
+ this_tw = tw - fromskew;
+ this_toskew = toskew + fromskew;
+ }
+ (*put)(img, raster+y*w+tocol, tocol, y, this_tw, nrow, fromskew, this_toskew, buf + pos);
+ tocol += this_tw;
+ col += this_tw;
+ /*
+ * After the leftmost tile, tiles are no longer clipped on left side.
+ */
+ fromskew = 0;
+ this_tw = tw;
+ this_toskew = toskew;
+ }
y += (flip & FLIP_VERTICALLY ? -(int32) nrow : (int32) nrow);
}
@@ -698,6 +730,10 @@ gtTileSeparate(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h)
uint32 nrow;
int ret = 1, flip;
int colorchannels;
+ uint32 this_tw, tocol;
+ int32 this_toskew, leftmost_toskew;
+ int32 leftmost_fromskew;
+ uint32 leftmost_tw;
tilesize = TIFFTileSize(tif);
bufsize = TIFFSafeMultiply(tmsize_t,alpha?4:3,tilesize);
@@ -742,20 +778,31 @@ gtTileSeparate(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h)
break;
}
+ /*
+ * Leftmost tile is clipped on left side if col_offset > 0.
+ */
+ leftmost_fromskew = img->col_offset % tw;
+ leftmost_tw = tw - leftmost_fromskew;
+ leftmost_toskew = toskew + leftmost_fromskew;
for (row = 0; row < h; row += nrow)
{
rowstoread = th - (row + img->row_offset) % th;
nrow = (row + rowstoread > h ? h - row : rowstoread);
- for (col = 0; col < w; col += tw)
+ fromskew = leftmost_fromskew;
+ this_tw = leftmost_tw;
+ this_toskew = leftmost_toskew;
+ tocol = 0;
+ col = img->col_offset;
+ while (tocol < w)
{
- if (TIFFReadTile(tif, p0, col+img->col_offset,
+ if (TIFFReadTile(tif, p0, col,
row+img->row_offset,0,0)==(tmsize_t)(-1) && img->stoponerr)
{
ret = 0;
break;
}
if (colorchannels > 1
- && TIFFReadTile(tif, p1, col+img->col_offset,
+ && TIFFReadTile(tif, p1, col,
row+img->row_offset,0,1) == (tmsize_t)(-1)
&& img->stoponerr)
{
@@ -763,7 +810,7 @@ gtTileSeparate(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h)
break;
}
if (colorchannels > 1
- && TIFFReadTile(tif, p2, col+img->col_offset,
+ && TIFFReadTile(tif, p2, col,
row+img->row_offset,0,2) == (tmsize_t)(-1)
&& img->stoponerr)
{
@@ -771,7 +818,7 @@ gtTileSeparate(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h)
break;
}
if (alpha
- && TIFFReadTile(tif,pa,col+img->col_offset,
+ && TIFFReadTile(tif,pa,col,
row+img->row_offset,0,colorchannels) == (tmsize_t)(-1)
&& img->stoponerr)
{
@@ -779,23 +826,27 @@ gtTileSeparate(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h)
break;
}
- pos = ((row+img->row_offset) % th) * TIFFTileRowSize(tif);
-
- if (col + tw > w)
+ pos = ((row+img->row_offset) % th) * TIFFTileRowSize(tif) + \
+ ((tmsize_t) fromskew * img->samplesperpixel);
+ if (tocol + this_tw > w)
{
/*
- * Tile is clipped horizontally. Calculate
- * visible portion and skewing factors.
+ * Rightmost tile is clipped on right side.
*/
- uint32 npix = w - col;
- fromskew = tw - npix;
- (*put)(img, raster+y*w+col, col, y,
- npix, nrow, fromskew, toskew + fromskew,
- p0 + pos, p1 + pos, p2 + pos, (alpha?(pa+pos):NULL));
- } else {
- (*put)(img, raster+y*w+col, col, y,
- tw, nrow, 0, toskew, p0 + pos, p1 + pos, p2 + pos, (alpha?(pa+pos):NULL));
+ fromskew = tw - (w - tocol);
+ this_tw = tw - fromskew;
+ this_toskew = toskew + fromskew;
}
+ (*put)(img, raster+y*w+tocol, tocol, y, this_tw, nrow, fromskew, this_toskew, \
+ p0 + pos, p1 + pos, p2 + pos, (alpha?(pa+pos):NULL));
+ tocol += this_tw;
+ col += this_tw;
+ /*
+ * After the leftmost tile, tiles are no longer clipped on left side.
+ */
+ fromskew = 0;
+ this_tw = tw;
+ this_toskew = toskew;
}
y += (flip & FLIP_VERTICALLY ?-(int32) nrow : (int32) nrow);
@@ -842,6 +893,12 @@ gtStripContig(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h)
int32 fromskew, toskew;
int ret = 1, flip;
+ TIFFGetFieldDefaulted(tif, TIFFTAG_YCBCRSUBSAMPLING, &subsamplinghor, &subsamplingver);
+ if( subsamplingver == 0 ) {
+ TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "Invalid vertical YCbCr subsampling");
+ return (0);
+ }
+
buf = (unsigned char*) _TIFFmalloc(TIFFStripSize(tif));
if (buf == 0) {
TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "No space for strip buffer");
@@ -859,7 +916,7 @@ gtStripContig(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h)
}
TIFFGetFieldDefaulted(tif, TIFFTAG_ROWSPERSTRIP, &rowsperstrip);
- TIFFGetFieldDefaulted(tif, TIFFTAG_YCBCRSUBSAMPLING, &subsamplinghor, &subsamplingver);
+
scanline = TIFFScanlineSize(tif);
fromskew = (w < imagewidth ? imagewidth - w : 0);
for (row = 0; row < h; row += nrow)
@@ -879,7 +936,8 @@ gtStripContig(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h)
break;
}
- pos = ((row + img->row_offset) % rowsperstrip) * scanline;
+ pos = ((row + img->row_offset) % rowsperstrip) * scanline + \
+ ((tmsize_t) img->col_offset * img->samplesperpixel);
(*put)(img, raster+y*w, 0, y, w, nrow, fromskew, toskew, buf + pos);
y += (flip & FLIP_VERTICALLY ? -(int32) nrow : (int32) nrow);
}
@@ -1010,7 +1068,8 @@ gtStripSeparate(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h)
}
}
- pos = ((row + img->row_offset) % rowsperstrip) * scanline;
+ pos = ((row + img->row_offset) % rowsperstrip) * scanline + \
+ ((tmsize_t) img->col_offset * img->samplesperpixel);
(*put)(img, raster+y*w, 0, y, w, nrow, fromskew, toskew, p0 + pos, p1 + pos,
p2 + pos, (alpha?(pa+pos):NULL));
y += (flip & FLIP_VERTICALLY ? -(int32) nrow : (int32) nrow);
@@ -1852,7 +1911,7 @@ DECLAREContigPutFunc(putcontig8bitYCbCr42tile)
(void) y;
fromskew = (fromskew * 10) / 4;
- if ((h & 3) == 0 && (w & 1) == 0) {
+ if ((w & 3) == 0 && (h & 1) == 0) {
for (; h >= 2; h -= 2) {
x = w>>2;
do {
@@ -1929,7 +1988,7 @@ DECLAREContigPutFunc(putcontig8bitYCbCr41tile)
/* XXX adjust fromskew */
do {
x = w>>2;
- do {
+ while(x>0) {
int32 Cb = pp[4];
int32 Cr = pp[5];
@@ -1940,7 +1999,8 @@ DECLAREContigPutFunc(putcontig8bitYCbCr41tile)
cp += 4;
pp += 6;
- } while (--x);
+ x--;
+ }
if( (w&3) != 0 )
{
@@ -2031,7 +2091,7 @@ DECLAREContigPutFunc(putcontig8bitYCbCr21tile)
fromskew = (fromskew * 4) / 2;
do {
x = w>>1;
- do {
+ while(x>0) {
int32 Cb = pp[2];
int32 Cr = pp[3];
@@ -2040,7 +2100,8 @@ DECLAREContigPutFunc(putcontig8bitYCbCr21tile)
cp += 2;
pp += 4;
- } while (--x);
+ x --;
+ }
if( (w&1) != 0 )
{
@@ -2541,7 +2602,7 @@ PickContigCase(TIFFRGBAImage* img)
* must always be <= horizontal subsampling; so
* there are only a few possibilities and we just
* enumerate the cases.
- * Joris: added support for the [1,2] case, nonetheless, to accomodate
+ * Joris: added support for the [1,2] case, nonetheless, to accommodate
* some OJPEG files
*/
uint16 SubsamplingHor;
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-03 18:43:27 +0000