-/* $Id: tif_getimage.c,v 1.82 2012-06-06 00:17:49 fwarmerdam Exp $ */
+/* $Id: tif_getimage.c,v 1.98 2016-11-18 02:47:45 bfriesen Exp $ */
/*
* Copyright (c) 1991-1997 Sam Leffler
*/
#include <precomp.h>
+//#include <stdio.h>
static int gtTileContig(TIFFRGBAImage*, uint32*, uint32, uint32);
static int gtTileSeparate(TIFFRGBAImage*, uint32*, uint32, uint32);
td->td_bitspersample);
return (0);
}
+ if (td->td_sampleformat == SAMPLEFORMAT_IEEEFP) {
+ sprintf(emsg, "Sorry, can not handle images with IEEE floating-point samples");
+ return (0);
+ }
colorchannels = td->td_samplesperpixel - td->td_extrasamples;
if (!TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &photometric)) {
switch (colorchannels) {
"Planarconfiguration", td->td_planarconfig);
return (0);
}
+ if ( td->td_samplesperpixel != 3 || colorchannels != 3 ) {
+ sprintf(emsg,
+ "Sorry, can not handle image with %s=%d, %s=%d",
+ "Samples/pixel", td->td_samplesperpixel,
+ "colorchannels", colorchannels);
+ return 0;
+ }
break;
case PHOTOMETRIC_CIELAB:
+ if ( td->td_samplesperpixel != 3 || colorchannels != 3 || td->td_bitspersample != 8 ) {
+ sprintf(emsg,
+ "Sorry, can not handle image with %s=%d, %s=%d and %s=%d",
+ "Samples/pixel", td->td_samplesperpixel,
+ "colorchannels", colorchannels,
+ "Bits/sample", td->td_bitspersample);
+ return 0;
+ }
break;
- default:
+ default:
sprintf(emsg, "Sorry, can not handle image with %s=%d",
photoTag, photometric);
return (0);
void
TIFFRGBAImageEnd(TIFFRGBAImage* img)
{
- if (img->Map)
- _TIFFfree(img->Map), img->Map = NULL;
- if (img->BWmap)
- _TIFFfree(img->BWmap), img->BWmap = NULL;
- if (img->PALmap)
- _TIFFfree(img->PALmap), img->PALmap = NULL;
- if (img->ycbcr)
- _TIFFfree(img->ycbcr), img->ycbcr = NULL;
- if (img->cielab)
- _TIFFfree(img->cielab), img->cielab = NULL;
- if (img->UaToAa)
- _TIFFfree(img->UaToAa), img->UaToAa = NULL;
- if (img->Bitdepth16To8)
- _TIFFfree(img->Bitdepth16To8), img->Bitdepth16To8 = NULL;
+ if (img->Map) {
+ _TIFFfree(img->Map);
+ img->Map = NULL;
+ }
+ if (img->BWmap) {
+ _TIFFfree(img->BWmap);
+ img->BWmap = NULL;
+ }
+ if (img->PALmap) {
+ _TIFFfree(img->PALmap);
+ img->PALmap = NULL;
+ }
+ if (img->ycbcr) {
+ _TIFFfree(img->ycbcr);
+ img->ycbcr = NULL;
+ }
+ if (img->cielab) {
+ _TIFFfree(img->cielab);
+ img->cielab = NULL;
+ }
+ if (img->UaToAa) {
+ _TIFFfree(img->UaToAa);
+ img->UaToAa = NULL;
+ }
+ if (img->Bitdepth16To8) {
+ _TIFFfree(img->Bitdepth16To8);
+ img->Bitdepth16To8 = NULL;
+ }
if( img->redcmap ) {
_TIFFfree( img->redcmap );
int colorchannels;
uint16 *red_orig, *green_orig, *blue_orig;
int n_color;
+
+ if( !TIFFRGBAImageOK(tif, emsg) )
+ return 0;
/* Initialize to normal values */
img->row_offset = 0;
}
/* copy the colormaps so we can modify them */
- n_color = (1L << img->bitspersample);
+ n_color = (1U << img->bitspersample);
img->redcmap = (uint16 *) _TIFFmalloc(sizeof(uint16)*n_color);
img->greencmap = (uint16 *) _TIFFmalloc(sizeof(uint16)*n_color);
img->bluecmap = (uint16 *) _TIFFmalloc(sizeof(uint16)*n_color);
_TIFFmemcpy( img->greencmap, green_orig, n_color * 2 );
_TIFFmemcpy( img->bluecmap, blue_orig, n_color * 2 );
- /* fall thru... */
+ /* fall through... */
case PHOTOMETRIC_MINISWHITE:
case PHOTOMETRIC_MINISBLACK:
if (planarconfig == PLANARCONFIG_CONTIG
int ok;
if (TIFFRGBAImageOK(tif, emsg) && TIFFRGBAImageBegin(&img, tif, stop, emsg)) {
- img.req_orientation = orientation;
+ img.req_orientation = (uint16)orientation;
/* XXX verify rwidth and rheight against width and height */
ok = TIFFRGBAImageGet(&img, raster+(rheight-img.height)*rwidth,
rwidth, img.height);
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) {
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);
}
uint32 temp = *left;
*left = *right;
*right = temp;
- left++, right--;
+ left++;
+ right--;
}
}
}
int alpha = img->alpha;
uint32 nrow;
int ret = 1, flip;
- int colorchannels;
+ uint16 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);
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)
{
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)
{
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)
{
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);
uint32 temp = *left;
*left = *right;
*right = temp;
- left++, right--;
+ left++;
+ right--;
}
}
}
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");
}
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)
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);
}
uint32 temp = *left;
*left = *right;
*right = temp;
- left++, right--;
+ left++;
+ right--;
}
}
}
tmsize_t bufsize;
int32 fromskew, toskew;
int alpha = img->alpha;
- int ret = 1, flip, colorchannels;
+ int ret = 1, flip;
+ uint16 colorchannels;
stripsize = TIFFStripSize(tif);
bufsize = TIFFSafeMultiply(tmsize_t,alpha?4:3,stripsize);
}
}
- 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);
uint32 temp = *left;
*left = *right;
*right = temp;
- left++, right--;
+ left++;
+ right--;
}
}
}
uint8* m;
for (x = w; x-- > 0;) {
a = pp[3];
- m = img->UaToAa+(a<<8);
+ m = img->UaToAa+((size_t) a<<8);
r = m[pp[0]];
g = m[pp[1]];
b = m[pp[2]];
uint8* m;
for (x = w; x-- > 0;) {
a = img->Bitdepth16To8[wp[3]];
- m = img->UaToAa+(a<<8);
+ m = img->UaToAa+((size_t) a<<8);
r = m[img->Bitdepth16To8[wp[0]]];
g = m[img->Bitdepth16To8[wp[1]]];
b = m[img->Bitdepth16To8[wp[2]]];
uint8* m;
for (x = w; x-- > 0;) {
av = *a++;
- m = img->UaToAa+(av<<8);
+ m = img->UaToAa+((size_t) av<<8);
rv = m[*r++];
gv = m[*g++];
bv = m[*b++];
uint16 *wa = (uint16*) a;
(void) img; (void) y;
while (h-- > 0) {
- uint32 r,g,b,a;
+ uint32 r2,g2,b2,a2;
uint8* m;
for (x = w; x-- > 0;) {
- a = img->Bitdepth16To8[*wa++];
- m = img->UaToAa+(a<<8);
- r = m[img->Bitdepth16To8[*wr++]];
- g = m[img->Bitdepth16To8[*wg++]];
- b = m[img->Bitdepth16To8[*wb++]];
- *cp++ = PACK4(r,g,b,a);
+ a2 = img->Bitdepth16To8[*wa++];
+ m = img->UaToAa+((size_t) a2<<8);
+ r2 = m[img->Bitdepth16To8[*wr++]];
+ g2 = m[img->Bitdepth16To8[*wg++]];
+ b2 = m[img->Bitdepth16To8[*wb++]];
+ *cp++ = PACK4(r2,g2,b2,a2);
}
SKEW4(wr, wg, wb, wa, fromskew);
cp += toskew;
YCbCrtoRGB(cp3[2], pp[14]);
YCbCrtoRGB(cp3[3], pp[15]);
- cp += 4, cp1 += 4, cp2 += 4, cp3 += 4;
+ cp += 4;
+ cp1 += 4;
+ cp2 += 4;
+ cp3 += 4;
pp += 18;
} while (--x);
- cp += incr, cp1 += incr, cp2 += incr, cp3 += incr;
+ cp += incr;
+ cp1 += incr;
+ cp2 += incr;
+ cp3 += incr;
pp += fromskew;
}
} else {
if (h <= 4)
break;
h -= 4;
- cp += incr, cp1 += incr, cp2 += incr, cp3 += incr;
+ cp += incr;
+ cp1 += incr;
+ cp2 += incr;
+ cp3 += incr;
pp += fromskew;
}
}
(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 {
YCbCrtoRGB(cp1[2], pp[6]);
YCbCrtoRGB(cp1[3], pp[7]);
- cp += 4, cp1 += 4;
+ cp += 4;
+ cp1 += 4;
pp += 10;
} while (--x);
- cp += incr, cp1 += incr;
+ cp += incr;
+ cp1 += incr;
pp += fromskew;
}
} else {
if (h <= 2)
break;
h -= 2;
- cp += incr, cp1 += incr;
+ cp += incr;
+ cp1 += incr;
pp += fromskew;
}
}
/* XXX adjust fromskew */
do {
x = w>>2;
- do {
+ while(x>0) {
int32 Cb = pp[4];
int32 Cr = pp[5];
cp += 4;
pp += 6;
- } while (--x);
+ x--;
+ }
if( (w&3) != 0 )
{
fromskew = (fromskew * 4) / 2;
do {
x = w>>1;
- do {
+ while(x>0) {
int32 Cb = pp[2];
int32 Cr = pp[3];
cp += 2;
pp += 4;
- } while (--x);
+ x --;
+ }
if( (w&1) != 0 )
{
if (!makebwmap(img))
return (0);
/* no longer need Map, free it */
- _TIFFfree(img->Map), img->Map = NULL;
+ _TIFFfree(img->Map);
+ img->Map = NULL;
}
return (1);
}
case PHOTOMETRIC_SEPARATED:
if (img->bitspersample == 8)
break;
- /* fall thru... */
+ /* fall through... */
case PHOTOMETRIC_MINISBLACK:
case PHOTOMETRIC_MINISWHITE:
if (!setupMap(img))
case PHOTOMETRIC_RGB:
switch (img->bitspersample) {
case 8:
- if (img->alpha == EXTRASAMPLE_ASSOCALPHA)
+ if (img->alpha == EXTRASAMPLE_ASSOCALPHA &&
+ img->samplesperpixel >= 4)
img->put.contig = putRGBAAcontig8bittile;
- else if (img->alpha == EXTRASAMPLE_UNASSALPHA)
+ else if (img->alpha == EXTRASAMPLE_UNASSALPHA &&
+ img->samplesperpixel >= 4)
{
if (BuildMapUaToAa(img))
img->put.contig = putRGBUAcontig8bittile;
}
- else
+ else if( img->samplesperpixel >= 3 )
img->put.contig = putRGBcontig8bittile;
break;
case 16:
- if (img->alpha == EXTRASAMPLE_ASSOCALPHA)
+ if (img->alpha == EXTRASAMPLE_ASSOCALPHA &&
+ img->samplesperpixel >=4 )
{
if (BuildMapBitdepth16To8(img))
img->put.contig = putRGBAAcontig16bittile;
}
- else if (img->alpha == EXTRASAMPLE_UNASSALPHA)
+ else if (img->alpha == EXTRASAMPLE_UNASSALPHA &&
+ img->samplesperpixel >=4 )
{
if (BuildMapBitdepth16To8(img) &&
BuildMapUaToAa(img))
img->put.contig = putRGBUAcontig16bittile;
}
- else
+ else if( img->samplesperpixel >=3 )
{
if (BuildMapBitdepth16To8(img))
img->put.contig = putRGBcontig16bittile;
}
break;
case PHOTOMETRIC_SEPARATED:
- if (buildMap(img)) {
+ if (img->samplesperpixel >=4 && buildMap(img)) {
if (img->bitspersample == 8) {
if (!img->Map)
img->put.contig = putRGBcontig8bitCMYKtile;
* 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;
}
break;
case PHOTOMETRIC_CIELAB:
- if (buildMap(img)) {
+ if (img->samplesperpixel == 3 && buildMap(img)) {
if (img->bitspersample == 8)
img->put.contig = initCIELabConversion(img);
break;
for (na=0; na<256; na++)
{
for (nv=0; nv<256; nv++)
- *m++=(nv*na+127)/255;
+ *m++=(uint8)((nv*na+127)/255);
}
return(1);
}
}
m=img->Bitdepth16To8;
for (n=0; n<65536; n++)
- *m++=(n+128)/257;
+ *m++=(uint8)((n+128)/257);
return(1);
}
projects / reactos.git / blobdiff