#include "tiffiop.h"
#include <stdio.h>
-static int gtTileContig(TIFFRGBAImage*, uint32*, uint32, uint32);
-static int gtTileSeparate(TIFFRGBAImage*, uint32*, uint32, uint32);
-static int gtStripContig(TIFFRGBAImage*, uint32*, uint32, uint32);
-static int gtStripSeparate(TIFFRGBAImage*, uint32*, uint32, uint32);
-static int pickTileContigCase(TIFFRGBAImage*);
-static int pickTileSeparateCase(TIFFRGBAImage*);
+static int gtTileContig(TIFFRGBAImage*, uint32*, uint32, uint32);
+static int gtTileSeparate(TIFFRGBAImage*, uint32*, uint32, uint32);
+static int gtStripContig(TIFFRGBAImage*, uint32*, uint32, uint32);
+static int gtStripSeparate(TIFFRGBAImage*, uint32*, uint32, uint32);
+static int PickContigCase(TIFFRGBAImage*);
+static int PickSeparateCase(TIFFRGBAImage*);
-static const char photoTag[] = "PhotometricInterpretation";
+static int BuildMapUaToAa(TIFFRGBAImage* img);
+static int BuildMapBitdepth16To8(TIFFRGBAImage* img);
+
+static const char photoTag[] = "PhotometricInterpretation";
/*
* Helper constants used in Orientation tag handling
* Color conversion constants. We will define display types here.
*/
-TIFFDisplay display_sRGB = {
+static const TIFFDisplay display_sRGB = {
{ /* XYZ -> luminance matrix */
{ 3.2410F, -1.5374F, -0.4986F },
{ -0.9692F, 1.8760F, 0.0416F },
int
TIFFRGBAImageOK(TIFF* tif, char emsg[1024])
{
- TIFFDirectory* td = &tif->tif_dir;
- uint16 photometric;
- int colorchannels;
+ TIFFDirectory* td = &tif->tif_dir;
+ uint16 photometric;
+ int colorchannels;
- if (!tif->tif_decodestatus) {
- sprintf(emsg, "Sorry, requested compression method is not configured");
- return (0);
- }
- switch (td->td_bitspersample) {
- case 1: case 2: case 4:
- case 8: case 16:
- break;
- default:
- sprintf(emsg, "Sorry, can not handle images with %d-bit samples",
- td->td_bitspersample);
- return (0);
- }
- colorchannels = td->td_samplesperpixel - td->td_extrasamples;
- if (!TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &photometric)) {
- switch (colorchannels) {
- case 1:
- photometric = PHOTOMETRIC_MINISBLACK;
- break;
- case 3:
- photometric = PHOTOMETRIC_RGB;
- break;
- default:
- sprintf(emsg, "Missing needed %s tag", photoTag);
- return (0);
- }
- }
- switch (photometric) {
- case PHOTOMETRIC_MINISWHITE:
- case PHOTOMETRIC_MINISBLACK:
- case PHOTOMETRIC_PALETTE:
- if (td->td_planarconfig == PLANARCONFIG_CONTIG
- && td->td_samplesperpixel != 1
- && td->td_bitspersample < 8 ) {
- sprintf(emsg,
- "Sorry, can not handle contiguous data with %s=%d, "
- "and %s=%d and Bits/Sample=%d",
- photoTag, photometric,
- "Samples/pixel", td->td_samplesperpixel,
- td->td_bitspersample);
- return (0);
+ if (!tif->tif_decodestatus) {
+ sprintf(emsg, "Sorry, requested compression method is not configured");
+ return (0);
}
- /*
- ** We should likely validate that any extra samples are either
- ** to be ignored, or are alpha, and if alpha we should try to use
- ** them. But for now we won't bother with this.
- */
- break;
- case PHOTOMETRIC_YCBCR:
- if (td->td_planarconfig != PLANARCONFIG_CONTIG) {
- sprintf(emsg, "Sorry, can not handle YCbCr images with %s=%d",
- "Planarconfiguration", td->td_planarconfig);
- return (0);
+ switch (td->td_bitspersample) {
+ case 1:
+ case 2:
+ case 4:
+ case 8:
+ case 16:
+ break;
+ default:
+ sprintf(emsg, "Sorry, can not handle images with %d-bit samples",
+ td->td_bitspersample);
+ return (0);
}
- break;
- case PHOTOMETRIC_RGB:
- if (colorchannels < 3) {
- sprintf(emsg, "Sorry, can not handle RGB image with %s=%d",
- "Color channels", colorchannels);
- return (0);
- }
- break;
- case PHOTOMETRIC_SEPARATED:
- {
- uint16 inkset;
- TIFFGetFieldDefaulted(tif, TIFFTAG_INKSET, &inkset);
- if (inkset != INKSET_CMYK) {
- sprintf(emsg,
- "Sorry, can not handle separated image with %s=%d",
- "InkSet", inkset);
- return 0;
- }
- if (td->td_samplesperpixel < 4) {
- sprintf(emsg,
- "Sorry, can not handle separated image with %s=%d",
- "Samples/pixel", td->td_samplesperpixel);
- return 0;
+ colorchannels = td->td_samplesperpixel - td->td_extrasamples;
+ if (!TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &photometric)) {
+ switch (colorchannels) {
+ case 1:
+ photometric = PHOTOMETRIC_MINISBLACK;
+ break;
+ case 3:
+ photometric = PHOTOMETRIC_RGB;
+ break;
+ default:
+ sprintf(emsg, "Missing needed %s tag", photoTag);
+ return (0);
}
- break;
}
- case PHOTOMETRIC_LOGL:
- if (td->td_compression != COMPRESSION_SGILOG) {
- sprintf(emsg, "Sorry, LogL data must have %s=%d",
- "Compression", COMPRESSION_SGILOG);
- return (0);
+ switch (photometric) {
+ case PHOTOMETRIC_MINISWHITE:
+ case PHOTOMETRIC_MINISBLACK:
+ case PHOTOMETRIC_PALETTE:
+ if (td->td_planarconfig == PLANARCONFIG_CONTIG
+ && td->td_samplesperpixel != 1
+ && td->td_bitspersample < 8 ) {
+ sprintf(emsg,
+ "Sorry, can not handle contiguous data with %s=%d, "
+ "and %s=%d and Bits/Sample=%d",
+ photoTag, photometric,
+ "Samples/pixel", td->td_samplesperpixel,
+ td->td_bitspersample);
+ return (0);
+ }
+ /*
+ * We should likely validate that any extra samples are either
+ * to be ignored, or are alpha, and if alpha we should try to use
+ * them. But for now we won't bother with this.
+ */
+ break;
+ case PHOTOMETRIC_YCBCR:
+ /*
+ * TODO: if at all meaningful and useful, make more complete
+ * support check here, or better still, refactor to let supporting
+ * code decide whether there is support and what meaningfull
+ * error to return
+ */
+ break;
+ case PHOTOMETRIC_RGB:
+ if (colorchannels < 3) {
+ sprintf(emsg, "Sorry, can not handle RGB image with %s=%d",
+ "Color channels", colorchannels);
+ return (0);
+ }
+ break;
+ case PHOTOMETRIC_SEPARATED:
+ {
+ uint16 inkset;
+ TIFFGetFieldDefaulted(tif, TIFFTAG_INKSET, &inkset);
+ if (inkset != INKSET_CMYK) {
+ sprintf(emsg,
+ "Sorry, can not handle separated image with %s=%d",
+ "InkSet", inkset);
+ return 0;
+ }
+ if (td->td_samplesperpixel < 4) {
+ sprintf(emsg,
+ "Sorry, can not handle separated image with %s=%d",
+ "Samples/pixel", td->td_samplesperpixel);
+ return 0;
+ }
+ break;
+ }
+ case PHOTOMETRIC_LOGL:
+ if (td->td_compression != COMPRESSION_SGILOG) {
+ sprintf(emsg, "Sorry, LogL data must have %s=%d",
+ "Compression", COMPRESSION_SGILOG);
+ return (0);
+ }
+ break;
+ case PHOTOMETRIC_LOGLUV:
+ if (td->td_compression != COMPRESSION_SGILOG &&
+ td->td_compression != COMPRESSION_SGILOG24) {
+ sprintf(emsg, "Sorry, LogLuv data must have %s=%d or %d",
+ "Compression", COMPRESSION_SGILOG, COMPRESSION_SGILOG24);
+ return (0);
+ }
+ if (td->td_planarconfig != PLANARCONFIG_CONTIG) {
+ sprintf(emsg, "Sorry, can not handle LogLuv images with %s=%d",
+ "Planarconfiguration", td->td_planarconfig);
+ return (0);
+ }
+ break;
+ case PHOTOMETRIC_CIELAB:
+ break;
+ default:
+ sprintf(emsg, "Sorry, can not handle image with %s=%d",
+ photoTag, photometric);
+ return (0);
}
- break;
- case PHOTOMETRIC_LOGLUV:
- if (td->td_compression != COMPRESSION_SGILOG &&
- td->td_compression != COMPRESSION_SGILOG24) {
- sprintf(emsg, "Sorry, LogLuv data must have %s=%d or %d",
- "Compression", COMPRESSION_SGILOG, COMPRESSION_SGILOG24);
- return (0);
- }
- if (td->td_planarconfig != PLANARCONFIG_CONTIG) {
- sprintf(emsg, "Sorry, can not handle LogLuv images with %s=%d",
- "Planarconfiguration", td->td_planarconfig);
- return (0);
- }
- break;
- case PHOTOMETRIC_CIELAB:
- break;
- default:
- sprintf(emsg, "Sorry, can not handle image with %s=%d",
- photoTag, photometric);
- return (0);
- }
- return (1);
+ return (1);
}
void
_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 );
_TIFFfree( img->greencmap );
_TIFFfree( img->bluecmap );
+ img->redcmap = img->greencmap = img->bluecmap = NULL;
}
}
int
TIFFRGBAImageBegin(TIFFRGBAImage* img, TIFF* tif, int stop, char emsg[1024])
{
- uint16* sampleinfo;
- uint16 extrasamples;
- uint16 planarconfig;
- uint16 compress;
- int colorchannels;
- uint16 *red_orig, *green_orig, *blue_orig;
- int n_color;
-
- /* Initialize to normal values */
- img->row_offset = 0;
- img->col_offset = 0;
- img->redcmap = NULL;
- img->greencmap = NULL;
- img->bluecmap = NULL;
- img->req_orientation = ORIENTATION_BOTLEFT; /* It is the default */
-
- img->tif = tif;
- img->stoponerr = stop;
- TIFFGetFieldDefaulted(tif, TIFFTAG_BITSPERSAMPLE, &img->bitspersample);
- switch (img->bitspersample) {
- case 1: case 2: case 4:
- case 8: case 16:
- break;
- default:
- sprintf(emsg, "Sorry, can not handle images with %d-bit samples",
- img->bitspersample);
- return (0);
- }
- img->alpha = 0;
- TIFFGetFieldDefaulted(tif, TIFFTAG_SAMPLESPERPIXEL, &img->samplesperpixel);
- TIFFGetFieldDefaulted(tif, TIFFTAG_EXTRASAMPLES,
- &extrasamples, &sampleinfo);
- if (extrasamples >= 1)
- {
- switch (sampleinfo[0]) {
- case EXTRASAMPLE_UNSPECIFIED: /* Workaround for some images without */
- if (img->samplesperpixel > 3) /* correct info about alpha channel */
- img->alpha = EXTRASAMPLE_ASSOCALPHA;
- break;
- case EXTRASAMPLE_ASSOCALPHA: /* data is pre-multiplied */
- case EXTRASAMPLE_UNASSALPHA: /* data is not pre-multiplied */
- img->alpha = sampleinfo[0];
- break;
+ uint16* sampleinfo;
+ uint16 extrasamples;
+ uint16 planarconfig;
+ uint16 compress;
+ int colorchannels;
+ uint16 *red_orig, *green_orig, *blue_orig;
+ int n_color;
+
+ /* Initialize to normal values */
+ img->row_offset = 0;
+ img->col_offset = 0;
+ img->redcmap = NULL;
+ img->greencmap = NULL;
+ img->bluecmap = NULL;
+ img->req_orientation = ORIENTATION_BOTLEFT; /* It is the default */
+
+ img->tif = tif;
+ img->stoponerr = stop;
+ TIFFGetFieldDefaulted(tif, TIFFTAG_BITSPERSAMPLE, &img->bitspersample);
+ switch (img->bitspersample) {
+ case 1:
+ case 2:
+ case 4:
+ case 8:
+ case 16:
+ break;
+ default:
+ sprintf(emsg, "Sorry, can not handle images with %d-bit samples",
+ img->bitspersample);
+ goto fail_return;
+ }
+ img->alpha = 0;
+ TIFFGetFieldDefaulted(tif, TIFFTAG_SAMPLESPERPIXEL, &img->samplesperpixel);
+ TIFFGetFieldDefaulted(tif, TIFFTAG_EXTRASAMPLES,
+ &extrasamples, &sampleinfo);
+ if (extrasamples >= 1)
+ {
+ switch (sampleinfo[0]) {
+ case EXTRASAMPLE_UNSPECIFIED: /* Workaround for some images without */
+ if (img->samplesperpixel > 3) /* correct info about alpha channel */
+ img->alpha = EXTRASAMPLE_ASSOCALPHA;
+ break;
+ case EXTRASAMPLE_ASSOCALPHA: /* data is pre-multiplied */
+ case EXTRASAMPLE_UNASSALPHA: /* data is not pre-multiplied */
+ img->alpha = sampleinfo[0];
+ break;
+ }
}
- }
#ifdef DEFAULT_EXTRASAMPLE_AS_ALPHA
- if( !TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &img->photometric))
- img->photometric = PHOTOMETRIC_MINISWHITE;
-
- if( extrasamples == 0
- && img->samplesperpixel == 4
- && img->photometric == PHOTOMETRIC_RGB )
- {
- img->alpha = EXTRASAMPLE_ASSOCALPHA;
- extrasamples = 1;
- }
-#endif
-
- colorchannels = img->samplesperpixel - extrasamples;
- TIFFGetFieldDefaulted(tif, TIFFTAG_COMPRESSION, &compress);
- TIFFGetFieldDefaulted(tif, TIFFTAG_PLANARCONFIG, &planarconfig);
- if (!TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &img->photometric)) {
- switch (colorchannels) {
- case 1:
- if (isCCITTCompression(tif))
+ if( !TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &img->photometric))
img->photometric = PHOTOMETRIC_MINISWHITE;
- else
- img->photometric = PHOTOMETRIC_MINISBLACK;
- break;
- case 3:
- img->photometric = PHOTOMETRIC_RGB;
- break;
- default:
- sprintf(emsg, "Missing needed %s tag", photoTag);
- return (0);
- }
- }
- switch (img->photometric) {
- case PHOTOMETRIC_PALETTE:
- if (!TIFFGetField(tif, TIFFTAG_COLORMAP,
- &red_orig, &green_orig, &blue_orig)) {
- sprintf(emsg, "Missing required \"Colormap\" tag");
- return (0);
- }
-
- /* copy the colormaps so we can modify them */
- n_color = (1L << 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);
- if( !img->redcmap || !img->greencmap || !img->bluecmap ) {
- sprintf(emsg, "Out of memory for colormap copy");
- return (0);
- }
- _TIFFmemcpy( img->redcmap, red_orig, n_color * 2 );
- _TIFFmemcpy( img->greencmap, green_orig, n_color * 2 );
- _TIFFmemcpy( img->bluecmap, blue_orig, n_color * 2 );
-
- /* fall thru... */
- case PHOTOMETRIC_MINISWHITE:
- case PHOTOMETRIC_MINISBLACK:
- if (planarconfig == PLANARCONFIG_CONTIG
- && img->samplesperpixel != 1
- && img->bitspersample < 8 ) {
- sprintf(emsg,
- "Sorry, can not handle contiguous data with %s=%d, "
- "and %s=%d and Bits/Sample=%d",
- photoTag, img->photometric,
- "Samples/pixel", img->samplesperpixel,
- img->bitspersample);
- return (0);
- }
- break;
- case PHOTOMETRIC_YCBCR:
- if (planarconfig != PLANARCONFIG_CONTIG) {
- sprintf(emsg, "Sorry, can not handle YCbCr images with %s=%d",
- "Planarconfiguration", planarconfig);
- return (0);
+ if( extrasamples == 0
+ && img->samplesperpixel == 4
+ && img->photometric == PHOTOMETRIC_RGB )
+ {
+ img->alpha = EXTRASAMPLE_ASSOCALPHA;
+ extrasamples = 1;
}
- /* It would probably be nice to have a reality check here. */
- if (planarconfig == PLANARCONFIG_CONTIG)
- /* can rely on libjpeg to convert to RGB */
- /* XXX should restore current state on exit */
- switch (compress) {
- case COMPRESSION_OJPEG:
- case COMPRESSION_JPEG:
- TIFFSetField(tif, TIFFTAG_JPEGCOLORMODE, JPEGCOLORMODE_RGB);
- img->photometric = PHOTOMETRIC_RGB;
- break;
+#endif
- default:
- /* do nothing */;
- break;
- }
- break;
- case PHOTOMETRIC_RGB:
- if (colorchannels < 3) {
- sprintf(emsg, "Sorry, can not handle RGB image with %s=%d",
- "Color channels", colorchannels);
- return (0);
- }
- break;
- case PHOTOMETRIC_SEPARATED: {
- uint16 inkset;
- TIFFGetFieldDefaulted(tif, TIFFTAG_INKSET, &inkset);
- if (inkset != INKSET_CMYK) {
- sprintf(emsg, "Sorry, can not handle separated image with %s=%d",
- "InkSet", inkset);
- return (0);
- }
- if (img->samplesperpixel < 4) {
- sprintf(emsg, "Sorry, can not handle separated image with %s=%d",
- "Samples/pixel", img->samplesperpixel);
- return (0);
- }
- break;
- }
- case PHOTOMETRIC_LOGL:
- if (compress != COMPRESSION_SGILOG) {
- sprintf(emsg, "Sorry, LogL data must have %s=%d",
- "Compression", COMPRESSION_SGILOG);
- return (0);
- }
- TIFFSetField(tif, TIFFTAG_SGILOGDATAFMT, SGILOGDATAFMT_8BIT);
- img->photometric = PHOTOMETRIC_MINISBLACK; /* little white lie */
- img->bitspersample = 8;
- break;
- case PHOTOMETRIC_LOGLUV:
- if (compress != COMPRESSION_SGILOG && compress != COMPRESSION_SGILOG24) {
- sprintf(emsg, "Sorry, LogLuv data must have %s=%d or %d",
- "Compression", COMPRESSION_SGILOG, COMPRESSION_SGILOG24);
- return (0);
- }
- if (planarconfig != PLANARCONFIG_CONTIG) {
- sprintf(emsg, "Sorry, can not handle LogLuv images with %s=%d",
- "Planarconfiguration", planarconfig);
- return (0);
+ colorchannels = img->samplesperpixel - extrasamples;
+ TIFFGetFieldDefaulted(tif, TIFFTAG_COMPRESSION, &compress);
+ TIFFGetFieldDefaulted(tif, TIFFTAG_PLANARCONFIG, &planarconfig);
+ if (!TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &img->photometric)) {
+ switch (colorchannels) {
+ case 1:
+ if (isCCITTCompression(tif))
+ img->photometric = PHOTOMETRIC_MINISWHITE;
+ else
+ img->photometric = PHOTOMETRIC_MINISBLACK;
+ break;
+ case 3:
+ img->photometric = PHOTOMETRIC_RGB;
+ break;
+ default:
+ sprintf(emsg, "Missing needed %s tag", photoTag);
+ goto fail_return;
+ }
}
- TIFFSetField(tif, TIFFTAG_SGILOGDATAFMT, SGILOGDATAFMT_8BIT);
- img->photometric = PHOTOMETRIC_RGB; /* little white lie */
- img->bitspersample = 8;
- break;
- case PHOTOMETRIC_CIELAB:
- break;
- default:
- sprintf(emsg, "Sorry, can not handle image with %s=%d",
- photoTag, img->photometric);
- return (0);
- }
- img->Map = NULL;
- img->BWmap = NULL;
- img->PALmap = NULL;
- img->ycbcr = NULL;
- img->cielab = NULL;
- TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &img->width);
- TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &img->height);
- TIFFGetFieldDefaulted(tif, TIFFTAG_ORIENTATION, &img->orientation);
- img->isContig =
- !(planarconfig == PLANARCONFIG_SEPARATE && colorchannels > 1);
- if (img->isContig) {
- img->get = TIFFIsTiled(tif) ? gtTileContig : gtStripContig;
- if (!pickTileContigCase(img)) {
- sprintf(emsg, "Sorry, can not handle image");
- return 0;
+ switch (img->photometric) {
+ case PHOTOMETRIC_PALETTE:
+ if (!TIFFGetField(tif, TIFFTAG_COLORMAP,
+ &red_orig, &green_orig, &blue_orig)) {
+ sprintf(emsg, "Missing required \"Colormap\" tag");
+ goto fail_return;
+ }
+
+ /* copy the colormaps so we can modify them */
+ n_color = (1L << 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);
+ if( !img->redcmap || !img->greencmap || !img->bluecmap ) {
+ sprintf(emsg, "Out of memory for colormap copy");
+ goto fail_return;
+ }
+
+ _TIFFmemcpy( img->redcmap, red_orig, n_color * 2 );
+ _TIFFmemcpy( img->greencmap, green_orig, n_color * 2 );
+ _TIFFmemcpy( img->bluecmap, blue_orig, n_color * 2 );
+
+ /* fall thru... */
+ case PHOTOMETRIC_MINISWHITE:
+ case PHOTOMETRIC_MINISBLACK:
+ if (planarconfig == PLANARCONFIG_CONTIG
+ && img->samplesperpixel != 1
+ && img->bitspersample < 8 ) {
+ sprintf(emsg,
+ "Sorry, can not handle contiguous data with %s=%d, "
+ "and %s=%d and Bits/Sample=%d",
+ photoTag, img->photometric,
+ "Samples/pixel", img->samplesperpixel,
+ img->bitspersample);
+ goto fail_return;
+ }
+ break;
+ case PHOTOMETRIC_YCBCR:
+ /* It would probably be nice to have a reality check here. */
+ if (planarconfig == PLANARCONFIG_CONTIG)
+ /* can rely on libjpeg to convert to RGB */
+ /* XXX should restore current state on exit */
+ switch (compress) {
+ case COMPRESSION_JPEG:
+ /*
+ * TODO: when complete tests verify complete desubsampling
+ * and YCbCr handling, remove use of TIFFTAG_JPEGCOLORMODE in
+ * favor of tif_getimage.c native handling
+ */
+ TIFFSetField(tif, TIFFTAG_JPEGCOLORMODE, JPEGCOLORMODE_RGB);
+ img->photometric = PHOTOMETRIC_RGB;
+ break;
+ default:
+ /* do nothing */;
+ break;
+ }
+ /*
+ * TODO: if at all meaningful and useful, make more complete
+ * support check here, or better still, refactor to let supporting
+ * code decide whether there is support and what meaningfull
+ * error to return
+ */
+ break;
+ case PHOTOMETRIC_RGB:
+ if (colorchannels < 3) {
+ sprintf(emsg, "Sorry, can not handle RGB image with %s=%d",
+ "Color channels", colorchannels);
+ goto fail_return;
+ }
+ break;
+ case PHOTOMETRIC_SEPARATED:
+ {
+ uint16 inkset;
+ TIFFGetFieldDefaulted(tif, TIFFTAG_INKSET, &inkset);
+ if (inkset != INKSET_CMYK) {
+ sprintf(emsg, "Sorry, can not handle separated image with %s=%d",
+ "InkSet", inkset);
+ goto fail_return;
+ }
+ if (img->samplesperpixel < 4) {
+ sprintf(emsg, "Sorry, can not handle separated image with %s=%d",
+ "Samples/pixel", img->samplesperpixel);
+ goto fail_return;
+ }
+ }
+ break;
+ case PHOTOMETRIC_LOGL:
+ if (compress != COMPRESSION_SGILOG) {
+ sprintf(emsg, "Sorry, LogL data must have %s=%d",
+ "Compression", COMPRESSION_SGILOG);
+ goto fail_return;
+ }
+ TIFFSetField(tif, TIFFTAG_SGILOGDATAFMT, SGILOGDATAFMT_8BIT);
+ img->photometric = PHOTOMETRIC_MINISBLACK; /* little white lie */
+ img->bitspersample = 8;
+ break;
+ case PHOTOMETRIC_LOGLUV:
+ if (compress != COMPRESSION_SGILOG && compress != COMPRESSION_SGILOG24) {
+ sprintf(emsg, "Sorry, LogLuv data must have %s=%d or %d",
+ "Compression", COMPRESSION_SGILOG, COMPRESSION_SGILOG24);
+ goto fail_return;
+ }
+ if (planarconfig != PLANARCONFIG_CONTIG) {
+ sprintf(emsg, "Sorry, can not handle LogLuv images with %s=%d",
+ "Planarconfiguration", planarconfig);
+ return (0);
+ }
+ TIFFSetField(tif, TIFFTAG_SGILOGDATAFMT, SGILOGDATAFMT_8BIT);
+ img->photometric = PHOTOMETRIC_RGB; /* little white lie */
+ img->bitspersample = 8;
+ break;
+ case PHOTOMETRIC_CIELAB:
+ break;
+ default:
+ sprintf(emsg, "Sorry, can not handle image with %s=%d",
+ photoTag, img->photometric);
+ goto fail_return;
}
- } else {
- img->get = TIFFIsTiled(tif) ? gtTileSeparate : gtStripSeparate;
- if (!pickTileSeparateCase(img)) {
- sprintf(emsg, "Sorry, can not handle image");
- return 0;
+ img->Map = NULL;
+ img->BWmap = NULL;
+ img->PALmap = NULL;
+ img->ycbcr = NULL;
+ img->cielab = NULL;
+ img->UaToAa = NULL;
+ img->Bitdepth16To8 = NULL;
+ TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &img->width);
+ TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &img->height);
+ TIFFGetFieldDefaulted(tif, TIFFTAG_ORIENTATION, &img->orientation);
+ img->isContig =
+ !(planarconfig == PLANARCONFIG_SEPARATE && img->samplesperpixel > 1);
+ if (img->isContig) {
+ if (!PickContigCase(img)) {
+ sprintf(emsg, "Sorry, can not handle image");
+ goto fail_return;
+ }
+ } else {
+ if (!PickSeparateCase(img)) {
+ sprintf(emsg, "Sorry, can not handle image");
+ goto fail_return;
+ }
}
- }
- return 1;
+ return 1;
+
+ fail_return:
+ _TIFFfree( img->redcmap );
+ _TIFFfree( img->greencmap );
+ _TIFFfree( img->bluecmap );
+ img->redcmap = img->greencmap = img->bluecmap = NULL;
+ return 0;
}
int
rwidth, img.height);
TIFFRGBAImageEnd(&img);
} else {
- TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), emsg);
+ TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "%s", emsg);
ok = 0;
}
return (ok);
TIFF* tif = img->tif;
tileContigRoutine put = img->put.contig;
uint32 col, row, y, rowstoread;
- uint32 pos;
+ tmsize_t pos;
uint32 tw, th;
unsigned char* buf;
int32 fromskew, toskew;
buf = (unsigned char*) _TIFFmalloc(TIFFTileSize(tif));
if (buf == 0) {
- TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "No space for tile buffer");
+ TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "%s", "No space for tile buffer");
return (0);
}
_TIFFmemset(buf, 0, TIFFTileSize(tif));
nrow = (row + rowstoread > h ? h - row : rowstoread);
for (col = 0; col < w; col += tw)
{
- if (TIFFReadTile(tif, buf, col+img->col_offset,
- row+img->row_offset, 0, 0) < 0 && img->stoponerr)
+ if (TIFFReadTile(tif, buf, col+img->col_offset,
+ row+img->row_offset, 0, 0)==(tmsize_t)(-1) && img->stoponerr)
{
ret = 0;
break;
}
- pos = ((row+img->row_offset) % th) * TIFFTileRowSize(tif);
+ pos = ((row+img->row_offset) % th) * TIFFTileRowSize(tif);
if (col + tw > w)
{
static int
gtTileSeparate(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h)
{
- TIFF* tif = img->tif;
- tileSeparateRoutine put = img->put.separate;
- uint32 col, row, y, rowstoread;
- uint32 pos;
- uint32 tw, th;
- unsigned char* buf;
- unsigned char* r;
- unsigned char* g;
- unsigned char* b;
- unsigned char* a;
- tsize_t tilesize;
- int32 fromskew, toskew;
- int alpha = img->alpha;
- uint32 nrow;
- int ret = 1, flip;
-
- tilesize = TIFFTileSize(tif);
- buf = (unsigned char*) _TIFFmalloc(4*tilesize);
- if (buf == 0) {
- TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "No space for tile buffer");
+ TIFF* tif = img->tif;
+ tileSeparateRoutine put = img->put.separate;
+ uint32 col, row, y, rowstoread;
+ tmsize_t pos;
+ uint32 tw, th;
+ unsigned char* buf;
+ unsigned char* p0;
+ unsigned char* p1;
+ unsigned char* p2;
+ unsigned char* pa;
+ tmsize_t tilesize;
+ tmsize_t bufsize;
+ int32 fromskew, toskew;
+ int alpha = img->alpha;
+ uint32 nrow;
+ int ret = 1, flip;
+ int colorchannels;
+
+ tilesize = TIFFTileSize(tif);
+ bufsize = TIFFSafeMultiply(tmsize_t,alpha?4:3,tilesize);
+ if (bufsize == 0) {
+ TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "Integer overflow in %s", "gtTileSeparate");
return (0);
- }
- _TIFFmemset(buf, 0, 4*tilesize);
- r = buf;
- g = r + tilesize;
- b = g + tilesize;
- a = b + tilesize;
- if (!alpha)
- _TIFFmemset(a, 0xff, tilesize);
- TIFFGetField(tif, TIFFTAG_TILEWIDTH, &tw);
- TIFFGetField(tif, TIFFTAG_TILELENGTH, &th);
-
- flip = setorientation(img);
- if (flip & FLIP_VERTICALLY) {
- y = h - 1;
- toskew = -(int32)(tw + w);
- }
- else {
- y = 0;
- toskew = -(int32)(tw - w);
- }
+ }
+ buf = (unsigned char*) _TIFFmalloc(bufsize);
+ if (buf == 0) {
+ TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "%s", "No space for tile buffer");
+ return (0);
+ }
+ _TIFFmemset(buf, 0, bufsize);
+ p0 = buf;
+ p1 = p0 + tilesize;
+ p2 = p1 + tilesize;
+ pa = (alpha?(p2+tilesize):NULL);
+ TIFFGetField(tif, TIFFTAG_TILEWIDTH, &tw);
+ TIFFGetField(tif, TIFFTAG_TILELENGTH, &th);
+
+ flip = setorientation(img);
+ if (flip & FLIP_VERTICALLY) {
+ y = h - 1;
+ toskew = -(int32)(tw + w);
+ }
+ else {
+ y = 0;
+ toskew = -(int32)(tw - w);
+ }
- 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)
+ switch( img->photometric )
{
- if (TIFFReadTile(tif, r, col+img->col_offset,
- row+img->row_offset,0,0) < 0 && img->stoponerr)
- {
- ret = 0;
- break;
- }
- if (TIFFReadTile(tif, g, col+img->col_offset,
- row+img->row_offset,0,1) < 0 && img->stoponerr)
- {
- ret = 0;
- break;
- }
- if (TIFFReadTile(tif, b, col+img->col_offset,
- row+img->row_offset,0,2) < 0 && img->stoponerr)
- {
- ret = 0;
- break;
- }
- if (alpha && TIFFReadTile(tif,a,col+img->col_offset,
- row+img->row_offset,0,3) < 0 && img->stoponerr)
- {
- ret = 0;
- break;
- }
-
- pos = ((row+img->row_offset) % th) * TIFFTileRowSize(tif);
+ case PHOTOMETRIC_MINISWHITE:
+ case PHOTOMETRIC_MINISBLACK:
+ case PHOTOMETRIC_PALETTE:
+ colorchannels = 1;
+ p2 = p1 = p0;
+ break;
- 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,
- r + pos, g + pos, b + pos, a + pos);
- } else {
- (*put)(img, raster+y*w+col, col, y,
- tw, nrow, 0, toskew, r + pos, g + pos, b + pos, a + pos);
- }
+ default:
+ colorchannels = 3;
+ break;
}
- y += (flip & FLIP_VERTICALLY ?-(int32) nrow : (int32) nrow);
- }
+ 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)
+ {
+ if (TIFFReadTile(tif, p0, col+img->col_offset,
+ row+img->row_offset,0,0)==(tmsize_t)(-1) && img->stoponerr)
+ {
+ ret = 0;
+ break;
+ }
+ if (colorchannels > 1
+ && TIFFReadTile(tif, p1, col+img->col_offset,
+ row+img->row_offset,0,1) == (tmsize_t)(-1)
+ && img->stoponerr)
+ {
+ ret = 0;
+ break;
+ }
+ if (colorchannels > 1
+ && TIFFReadTile(tif, p2, col+img->col_offset,
+ row+img->row_offset,0,2) == (tmsize_t)(-1)
+ && img->stoponerr)
+ {
+ ret = 0;
+ break;
+ }
+ if (alpha
+ && TIFFReadTile(tif,pa,col+img->col_offset,
+ row+img->row_offset,0,colorchannels) == (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,
+ 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));
+ }
+ }
- if (flip & FLIP_HORIZONTALLY) {
- uint32 line;
+ y += (flip & FLIP_VERTICALLY ?-(int32) nrow : (int32) nrow);
+ }
- for (line = 0; line < h; line++) {
- uint32 *left = raster + (line * w);
- uint32 *right = left + w - 1;
-
- while ( left < right ) {
- uint32 temp = *left;
- *left = *right;
- *right = temp;
- left++, right--;
- }
- }
- }
+ if (flip & FLIP_HORIZONTALLY) {
+ uint32 line;
- _TIFFfree(buf);
- return (ret);
+ for (line = 0; line < h; line++) {
+ uint32 *left = raster + (line * w);
+ uint32 *right = left + w - 1;
+
+ while ( left < right ) {
+ uint32 temp = *left;
+ *left = *right;
+ *right = temp;
+ left++, right--;
+ }
+ }
+ }
+
+ _TIFFfree(buf);
+ return (ret);
}
/*
static int
gtStripContig(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h)
{
- TIFF* tif = img->tif;
- tileContigRoutine put = img->put.contig;
- uint32 row, y, nrow, rowstoread;
- uint32 pos;
- unsigned char* buf;
- uint32 rowsperstrip;
- uint32 imagewidth = img->width;
- tsize_t scanline;
- int32 fromskew, toskew;
- int ret = 1, flip;
-
- buf = (unsigned char*) _TIFFmalloc(TIFFStripSize(tif));
- if (buf == 0) {
+ TIFF* tif = img->tif;
+ tileContigRoutine put = img->put.contig;
+ uint32 row, y, nrow, nrowsub, rowstoread;
+ tmsize_t pos;
+ unsigned char* buf;
+ uint32 rowsperstrip;
+ uint16 subsamplinghor,subsamplingver;
+ uint32 imagewidth = img->width;
+ tmsize_t scanline;
+ int32 fromskew, toskew;
+ int ret = 1, flip;
+
+ buf = (unsigned char*) _TIFFmalloc(TIFFStripSize(tif));
+ if (buf == 0) {
TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "No space for strip buffer");
return (0);
- }
- _TIFFmemset(buf, 0, TIFFStripSize(tif));
+ }
+ _TIFFmemset(buf, 0, TIFFStripSize(tif));
- flip = setorientation(img);
- if (flip & FLIP_VERTICALLY) {
- y = h - 1;
- toskew = -(int32)(w + w);
- } else {
- y = 0;
- toskew = -(int32)(w - w);
- }
+ flip = setorientation(img);
+ if (flip & FLIP_VERTICALLY) {
+ y = h - 1;
+ toskew = -(int32)(w + w);
+ } else {
+ y = 0;
+ toskew = -(int32)(w - w);
+ }
- TIFFGetFieldDefaulted(tif, TIFFTAG_ROWSPERSTRIP, &rowsperstrip);
- scanline = TIFFScanlineSize(tif);
- fromskew = (w < imagewidth ? imagewidth - w : 0);
- for (row = 0; row < h; row += nrow)
- {
- rowstoread = rowsperstrip - (row + img->row_offset) % rowsperstrip;
- nrow = (row + rowstoread > h ? h - row : rowstoread);
- if (TIFFReadEncodedStrip(tif,
- TIFFComputeStrip(tif,row+img->row_offset, 0),
- buf,
- ((row + img->row_offset)%rowsperstrip + nrow) * scanline) < 0
- && img->stoponerr)
- {
- ret = 0;
- break;
- }
+ 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)
+ {
+ rowstoread = rowsperstrip - (row + img->row_offset) % rowsperstrip;
+ nrow = (row + rowstoread > h ? h - row : rowstoread);
+ nrowsub = nrow;
+ if ((nrowsub%subsamplingver)!=0)
+ nrowsub+=subsamplingver-nrowsub%subsamplingver;
+ if (TIFFReadEncodedStrip(tif,
+ TIFFComputeStrip(tif,row+img->row_offset, 0),
+ buf,
+ ((row + img->row_offset)%rowsperstrip + nrowsub) * scanline)==(tmsize_t)(-1)
+ && img->stoponerr)
+ {
+ ret = 0;
+ break;
+ }
- pos = ((row + img->row_offset) % rowsperstrip) * scanline;
- (*put)(img, raster+y*w, 0, y, w, nrow, fromskew, toskew, buf + pos);
- y += (flip & FLIP_VERTICALLY ? -(int32) nrow : (int32) nrow);
- }
+ pos = ((row + img->row_offset) % rowsperstrip) * scanline;
+ (*put)(img, raster+y*w, 0, y, w, nrow, fromskew, toskew, buf + pos);
+ y += (flip & FLIP_VERTICALLY ? -(int32) nrow : (int32) nrow);
+ }
- if (flip & FLIP_HORIZONTALLY) {
- uint32 line;
+ if (flip & FLIP_HORIZONTALLY) {
+ uint32 line;
- for (line = 0; line < h; line++) {
- uint32 *left = raster + (line * w);
- uint32 *right = left + w - 1;
-
- while ( left < right ) {
- uint32 temp = *left;
- *left = *right;
- *right = temp;
- left++, right--;
- }
- }
- }
+ for (line = 0; line < h; line++) {
+ uint32 *left = raster + (line * w);
+ uint32 *right = left + w - 1;
- _TIFFfree(buf);
- return (ret);
+ while ( left < right ) {
+ uint32 temp = *left;
+ *left = *right;
+ *right = temp;
+ left++, right--;
+ }
+ }
+ }
+
+ _TIFFfree(buf);
+ return (ret);
}
/*
static int
gtStripSeparate(TIFFRGBAImage* img, uint32* raster, uint32 w, uint32 h)
{
- TIFF* tif = img->tif;
- tileSeparateRoutine put = img->put.separate;
- unsigned char *buf;
- unsigned char *r, *g, *b, *a;
- uint32 row, y, nrow, rowstoread;
- uint32 pos;
- tsize_t scanline;
- uint32 rowsperstrip, offset_row;
- uint32 imagewidth = img->width;
- tsize_t stripsize;
- int32 fromskew, toskew;
- int alpha = img->alpha;
- int ret = 1, flip;
-
- stripsize = TIFFStripSize(tif);
- r = buf = (unsigned char *)_TIFFmalloc(4*stripsize);
- if (buf == 0) {
+ TIFF* tif = img->tif;
+ tileSeparateRoutine put = img->put.separate;
+ unsigned char *buf;
+ unsigned char *p0, *p1, *p2, *pa;
+ uint32 row, y, nrow, rowstoread;
+ tmsize_t pos;
+ tmsize_t scanline;
+ uint32 rowsperstrip, offset_row;
+ uint32 imagewidth = img->width;
+ tmsize_t stripsize;
+ tmsize_t bufsize;
+ int32 fromskew, toskew;
+ int alpha = img->alpha;
+ int ret = 1, flip, colorchannels;
+
+ stripsize = TIFFStripSize(tif);
+ bufsize = TIFFSafeMultiply(tmsize_t,alpha?4:3,stripsize);
+ if (bufsize == 0) {
+ TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "Integer overflow in %s", "gtStripSeparate");
+ return (0);
+ }
+ p0 = buf = (unsigned char *)_TIFFmalloc(bufsize);
+ if (buf == 0) {
TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "No space for tile buffer");
return (0);
- }
- _TIFFmemset(buf, 0, 4*stripsize);
- g = r + stripsize;
- b = g + stripsize;
- a = b + stripsize;
- if (!alpha)
- _TIFFmemset(a, 0xff, stripsize);
-
- flip = setorientation(img);
- if (flip & FLIP_VERTICALLY) {
- y = h - 1;
- toskew = -(int32)(w + w);
- }
- else {
- y = 0;
- toskew = -(int32)(w - w);
- }
+ }
+ _TIFFmemset(buf, 0, bufsize);
+ p1 = p0 + stripsize;
+ p2 = p1 + stripsize;
+ pa = (alpha?(p2+stripsize):NULL);
+
+ flip = setorientation(img);
+ if (flip & FLIP_VERTICALLY) {
+ y = h - 1;
+ toskew = -(int32)(w + w);
+ }
+ else {
+ y = 0;
+ toskew = -(int32)(w - w);
+ }
- TIFFGetFieldDefaulted(tif, TIFFTAG_ROWSPERSTRIP, &rowsperstrip);
- scanline = TIFFScanlineSize(tif);
- fromskew = (w < imagewidth ? imagewidth - w : 0);
- for (row = 0; row < h; row += nrow)
- {
- rowstoread = rowsperstrip - (row + img->row_offset) % rowsperstrip;
- nrow = (row + rowstoread > h ? h - row : rowstoread);
- offset_row = row + img->row_offset;
- if (TIFFReadEncodedStrip(tif, TIFFComputeStrip(tif, offset_row, 0),
- r, ((row + img->row_offset)%rowsperstrip + nrow) * scanline) < 0
- && img->stoponerr)
+ switch( img->photometric )
{
- ret = 0;
+ case PHOTOMETRIC_MINISWHITE:
+ case PHOTOMETRIC_MINISBLACK:
+ case PHOTOMETRIC_PALETTE:
+ colorchannels = 1;
+ p2 = p1 = p0;
break;
- }
- if (TIFFReadEncodedStrip(tif, TIFFComputeStrip(tif, offset_row, 1),
- g, ((row + img->row_offset)%rowsperstrip + nrow) * scanline) < 0
- && img->stoponerr)
- {
- ret = 0;
- break;
- }
- if (TIFFReadEncodedStrip(tif, TIFFComputeStrip(tif, offset_row, 2),
- b, ((row + img->row_offset)%rowsperstrip + nrow) * scanline) < 0
- && img->stoponerr)
- {
- ret = 0;
- break;
- }
- if (alpha &&
- (TIFFReadEncodedStrip(tif, TIFFComputeStrip(tif, offset_row, 3),
- a, ((row + img->row_offset)%rowsperstrip + nrow) * scanline) < 0
- && img->stoponerr))
- {
- ret = 0;
+
+ default:
+ colorchannels = 3;
break;
}
- pos = ((row + img->row_offset) % rowsperstrip) * scanline;
- (*put)(img, raster+y*w, 0, y, w, nrow, fromskew, toskew, r + pos, g + pos,
- b + pos, a + pos);
- y += (flip & FLIP_VERTICALLY ? -(int32) nrow : (int32) nrow);
- }
+ TIFFGetFieldDefaulted(tif, TIFFTAG_ROWSPERSTRIP, &rowsperstrip);
+ scanline = TIFFScanlineSize(tif);
+ fromskew = (w < imagewidth ? imagewidth - w : 0);
+ for (row = 0; row < h; row += nrow)
+ {
+ rowstoread = rowsperstrip - (row + img->row_offset) % rowsperstrip;
+ nrow = (row + rowstoread > h ? h - row : rowstoread);
+ offset_row = row + img->row_offset;
+ if (TIFFReadEncodedStrip(tif, TIFFComputeStrip(tif, offset_row, 0),
+ p0, ((row + img->row_offset)%rowsperstrip + nrow) * scanline)==(tmsize_t)(-1)
+ && img->stoponerr)
+ {
+ ret = 0;
+ break;
+ }
+ if (colorchannels > 1
+ && TIFFReadEncodedStrip(tif, TIFFComputeStrip(tif, offset_row, 1),
+ p1, ((row + img->row_offset)%rowsperstrip + nrow) * scanline) == (tmsize_t)(-1)
+ && img->stoponerr)
+ {
+ ret = 0;
+ break;
+ }
+ if (colorchannels > 1
+ && TIFFReadEncodedStrip(tif, TIFFComputeStrip(tif, offset_row, 2),
+ p2, ((row + img->row_offset)%rowsperstrip + nrow) * scanline) == (tmsize_t)(-1)
+ && img->stoponerr)
+ {
+ ret = 0;
+ break;
+ }
+ if (alpha)
+ {
+ if (TIFFReadEncodedStrip(tif, TIFFComputeStrip(tif, offset_row, colorchannels),
+ pa, ((row + img->row_offset)%rowsperstrip + nrow) * scanline)==(tmsize_t)(-1)
+ && img->stoponerr)
+ {
+ ret = 0;
+ break;
+ }
+ }
- if (flip & FLIP_HORIZONTALLY) {
- uint32 line;
+ pos = ((row + img->row_offset) % rowsperstrip) * scanline;
+ (*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);
+ }
- for (line = 0; line < h; line++) {
- uint32 *left = raster + (line * w);
- uint32 *right = left + w - 1;
-
- while ( left < right ) {
- uint32 temp = *left;
- *left = *right;
- *right = temp;
- left++, right--;
- }
- }
- }
+ if (flip & FLIP_HORIZONTALLY) {
+ uint32 line;
- _TIFFfree(buf);
- return (ret);
+ for (line = 0; line < h; line++) {
+ uint32 *left = raster + (line * w);
+ uint32 *right = left + w - 1;
+
+ while ( left < right ) {
+ uint32 temp = *left;
+ *left = *right;
+ *right = temp;
+ left++, right--;
+ }
+ }
+ }
+
+ _TIFFfree(buf);
+ return (ret);
}
/*
* ABGR pixels (i.e. suitable for passing to lrecwrite.)
*
* The routines have been created according to the most
- * important cases and optimized. pickTileContigCase and
- * pickTileSeparateCase analyze the parameters and select
- * the appropriate "put" routine to use.
+ * important cases and optimized. PickContigCase and
+ * PickSeparateCase analyze the parameters and select
+ * the appropriate "get" and "put" routine to use.
*/
#define REPEAT8(op) REPEAT4(op); REPEAT4(op)
#define REPEAT4(op) REPEAT2(op); REPEAT2(op)
#define PACK4(r,g,b,a) \
((uint32)(r)|((uint32)(g)<<8)|((uint32)(b)<<16)|((uint32)(a)<<24))
#define W2B(v) (((v)>>8)&0xff)
+/* TODO: PACKW should have be made redundant in favor of Bitdepth16To8 LUT */
#define PACKW(r,g,b) \
((uint32)W2B(r)|((uint32)W2B(g)<<8)|((uint32)W2B(b)<<16)|A1)
#define PACKW4(r,g,b,a) \
}
}
+/*
+ * 8-bit greyscale with associated alpha => colormap/RGBA
+ */
+DECLAREContigPutFunc(putagreytile)
+{
+ int samplesperpixel = img->samplesperpixel;
+ uint32** BWmap = img->BWmap;
+
+ (void) y;
+ while (h-- > 0) {
+ for (x = w; x-- > 0;)
+ {
+ *cp++ = BWmap[*pp][0] & (*(pp+1) << 24 | ~A1);
+ pp += samplesperpixel;
+ }
+ cp += toskew;
+ pp += fromskew;
+ }
+}
+
/*
* 16-bit greyscale => colormap/RGB
*/
}
}
-/*
- * 8-bit packed samples, w/ Map => RGB
- */
-DECLAREContigPutFunc(putRGBcontig8bitMaptile)
-{
- TIFFRGBValue* Map = img->Map;
- int samplesperpixel = img->samplesperpixel;
-
- (void) y;
- fromskew *= samplesperpixel;
- while (h-- > 0) {
- for (x = w; x-- > 0;) {
- *cp++ = PACK(Map[pp[0]], Map[pp[1]], Map[pp[2]]);
- pp += samplesperpixel;
- }
- pp += fromskew;
- cp += toskew;
- }
-}
-
/*
* 8-bit packed samples => RGBA w/ associated alpha
* (known to have Map == NULL)
*/
DECLAREContigPutFunc(putRGBUAcontig8bittile)
{
- int samplesperpixel = img->samplesperpixel;
-
- (void) y;
- fromskew *= samplesperpixel;
- while (h-- > 0) {
- uint32 r, g, b, a;
- for (x = w; x-- > 0;) {
- a = pp[3];
- r = (pp[0] * a) / 255;
- g = (pp[1] * a) / 255;
- b = (pp[2] * a) / 255;
- *cp++ = PACK4(r,g,b,a);
- pp += samplesperpixel;
+ int samplesperpixel = img->samplesperpixel;
+ (void) y;
+ fromskew *= samplesperpixel;
+ while (h-- > 0) {
+ uint32 r, g, b, a;
+ uint8* m;
+ for (x = w; x-- > 0;) {
+ a = pp[3];
+ m = img->UaToAa+(a<<8);
+ r = m[pp[0]];
+ g = m[pp[1]];
+ b = m[pp[2]];
+ *cp++ = PACK4(r,g,b,a);
+ pp += samplesperpixel;
+ }
+ cp += toskew;
+ pp += fromskew;
}
- cp += toskew;
- pp += fromskew;
- }
}
/*
*/
DECLAREContigPutFunc(putRGBcontig16bittile)
{
- int samplesperpixel = img->samplesperpixel;
- uint16 *wp = (uint16 *)pp;
-
- (void) y;
- fromskew *= samplesperpixel;
- while (h-- > 0) {
- for (x = w; x-- > 0;) {
- *cp++ = PACKW(wp[0], wp[1], wp[2]);
- wp += samplesperpixel;
+ int samplesperpixel = img->samplesperpixel;
+ uint16 *wp = (uint16 *)pp;
+ (void) y;
+ fromskew *= samplesperpixel;
+ while (h-- > 0) {
+ for (x = w; x-- > 0;) {
+ *cp++ = PACK(img->Bitdepth16To8[wp[0]],
+ img->Bitdepth16To8[wp[1]],
+ img->Bitdepth16To8[wp[2]]);
+ wp += samplesperpixel;
+ }
+ cp += toskew;
+ wp += fromskew;
}
- cp += toskew;
- wp += fromskew;
- }
}
/*
*/
DECLAREContigPutFunc(putRGBAAcontig16bittile)
{
- int samplesperpixel = img->samplesperpixel;
- uint16 *wp = (uint16 *)pp;
-
- (void) y;
- fromskew *= samplesperpixel;
- while (h-- > 0) {
- for (x = w; x-- > 0;) {
- *cp++ = PACKW4(wp[0], wp[1], wp[2], wp[3]);
- wp += samplesperpixel;
+ int samplesperpixel = img->samplesperpixel;
+ uint16 *wp = (uint16 *)pp;
+ (void) y;
+ fromskew *= samplesperpixel;
+ while (h-- > 0) {
+ for (x = w; x-- > 0;) {
+ *cp++ = PACK4(img->Bitdepth16To8[wp[0]],
+ img->Bitdepth16To8[wp[1]],
+ img->Bitdepth16To8[wp[2]],
+ img->Bitdepth16To8[wp[3]]);
+ wp += samplesperpixel;
+ }
+ cp += toskew;
+ wp += fromskew;
}
- cp += toskew;
- wp += fromskew;
- }
}
/*
*/
DECLAREContigPutFunc(putRGBUAcontig16bittile)
{
- int samplesperpixel = img->samplesperpixel;
- uint16 *wp = (uint16 *)pp;
-
- (void) y;
- fromskew *= samplesperpixel;
- while (h-- > 0) {
- uint32 r,g,b,a;
- /*
- * We shift alpha down four bits just in case unsigned
- * arithmetic doesn't handle the full range.
- * We still have plenty of accuracy, since the output is 8 bits.
- * So we have (r * 0xffff) * (a * 0xfff)) = r*a * (0xffff*0xfff)
- * Since we want r*a * 0xff for eight bit output,
- * we divide by (0xffff * 0xfff) / 0xff == 0x10eff.
- */
- for (x = w; x-- > 0;) {
- a = wp[3] >> 4;
- r = (wp[0] * a) / 0x10eff;
- g = (wp[1] * a) / 0x10eff;
- b = (wp[2] * a) / 0x10eff;
- *cp++ = PACK4(r,g,b,a);
- wp += samplesperpixel;
+ int samplesperpixel = img->samplesperpixel;
+ uint16 *wp = (uint16 *)pp;
+ (void) y;
+ fromskew *= samplesperpixel;
+ while (h-- > 0) {
+ uint32 r,g,b,a;
+ uint8* m;
+ for (x = w; x-- > 0;) {
+ a = img->Bitdepth16To8[wp[3]];
+ m = img->UaToAa+(a<<8);
+ r = m[img->Bitdepth16To8[wp[0]]];
+ g = m[img->Bitdepth16To8[wp[1]]];
+ b = m[img->Bitdepth16To8[wp[2]]];
+ *cp++ = PACK4(r,g,b,a);
+ wp += samplesperpixel;
+ }
+ cp += toskew;
+ wp += fromskew;
}
- cp += toskew;
- wp += fromskew;
- }
}
/*
}
/*
- * 8-bit unpacked samples => RGB
+ * 8-bit unpacked samples => RGBA w/ associated alpha
*/
-DECLARESepPutFunc(putRGBseparate8bitMaptile)
+DECLARESepPutFunc(putRGBAAseparate8bittile)
{
- TIFFRGBValue* Map = img->Map;
-
- (void) y; (void) a;
- while (h-- > 0) {
- for (x = w; x > 0; x--)
- *cp++ = PACK(Map[*r++], Map[*g++], Map[*b++]);
- SKEW(r, g, b, fromskew);
- cp += toskew;
- }
+ (void) img; (void) x; (void) y;
+ while (h-- > 0) {
+ UNROLL8(w, NOP, *cp++ = PACK4(*r++, *g++, *b++, *a++));
+ SKEW4(r, g, b, a, fromskew);
+ cp += toskew;
+ }
}
/*
- * 8-bit unpacked samples => RGBA w/ associated alpha
+ * 8-bit unpacked CMYK samples => RGBA
*/
-DECLARESepPutFunc(putRGBAAseparate8bittile)
+DECLARESepPutFunc(putCMYKseparate8bittile)
{
- (void) img; (void) x; (void) y;
- while (h-- > 0) {
- UNROLL8(w, NOP, *cp++ = PACK4(*r++, *g++, *b++, *a++));
- SKEW4(r, g, b, a, fromskew);
- cp += toskew;
- }
+ (void) img; (void) y;
+ while (h-- > 0) {
+ uint32 rv, gv, bv, kv;
+ for (x = w; x-- > 0;) {
+ kv = 255 - *a++;
+ rv = (kv*(255-*r++))/255;
+ gv = (kv*(255-*g++))/255;
+ bv = (kv*(255-*b++))/255;
+ *cp++ = PACK4(rv,gv,bv,255);
+ }
+ SKEW4(r, g, b, a, fromskew);
+ cp += toskew;
+ }
}
/*
*/
DECLARESepPutFunc(putRGBUAseparate8bittile)
{
- (void) img; (void) y;
- while (h-- > 0) {
- uint32 rv, gv, bv, av;
- for (x = w; x-- > 0;) {
- av = *a++;
- rv = (*r++ * av) / 255;
- gv = (*g++ * av) / 255;
- bv = (*b++ * av) / 255;
- *cp++ = PACK4(rv,gv,bv,av);
+ (void) img; (void) y;
+ while (h-- > 0) {
+ uint32 rv, gv, bv, av;
+ uint8* m;
+ for (x = w; x-- > 0;) {
+ av = *a++;
+ m = img->UaToAa+(av<<8);
+ rv = m[*r++];
+ gv = m[*g++];
+ bv = m[*b++];
+ *cp++ = PACK4(rv,gv,bv,av);
+ }
+ SKEW4(r, g, b, a, fromskew);
+ cp += toskew;
}
- SKEW4(r, g, b, a, fromskew);
- cp += toskew;
- }
}
/*
*/
DECLARESepPutFunc(putRGBseparate16bittile)
{
- uint16 *wr = (uint16*) r;
- uint16 *wg = (uint16*) g;
- uint16 *wb = (uint16*) b;
-
- (void) img; (void) y; (void) a;
- while (h-- > 0) {
- for (x = 0; x < w; x++)
- *cp++ = PACKW(*wr++, *wg++, *wb++);
- SKEW(wr, wg, wb, fromskew);
- cp += toskew;
- }
+ uint16 *wr = (uint16*) r;
+ uint16 *wg = (uint16*) g;
+ uint16 *wb = (uint16*) b;
+ (void) img; (void) y; (void) a;
+ while (h-- > 0) {
+ for (x = 0; x < w; x++)
+ *cp++ = PACK(img->Bitdepth16To8[*wr++],
+ img->Bitdepth16To8[*wg++],
+ img->Bitdepth16To8[*wb++]);
+ SKEW(wr, wg, wb, fromskew);
+ cp += toskew;
+ }
}
/*
*/
DECLARESepPutFunc(putRGBAAseparate16bittile)
{
- uint16 *wr = (uint16*) r;
- uint16 *wg = (uint16*) g;
- uint16 *wb = (uint16*) b;
- uint16 *wa = (uint16*) a;
-
- (void) img; (void) y;
- while (h-- > 0) {
- for (x = 0; x < w; x++)
- *cp++ = PACKW4(*wr++, *wg++, *wb++, *wa++);
- SKEW4(wr, wg, wb, wa, fromskew);
- cp += toskew;
- }
+ uint16 *wr = (uint16*) r;
+ uint16 *wg = (uint16*) g;
+ uint16 *wb = (uint16*) b;
+ uint16 *wa = (uint16*) a;
+ (void) img; (void) y;
+ while (h-- > 0) {
+ for (x = 0; x < w; x++)
+ *cp++ = PACK4(img->Bitdepth16To8[*wr++],
+ img->Bitdepth16To8[*wg++],
+ img->Bitdepth16To8[*wb++],
+ img->Bitdepth16To8[*wa++]);
+ SKEW4(wr, wg, wb, wa, fromskew);
+ cp += toskew;
+ }
}
/*
*/
DECLARESepPutFunc(putRGBUAseparate16bittile)
{
- uint16 *wr = (uint16*) r;
- uint16 *wg = (uint16*) g;
- uint16 *wb = (uint16*) b;
- uint16 *wa = (uint16*) a;
-
- (void) img; (void) y;
- while (h-- > 0) {
- uint32 r,g,b,a;
- /*
- * We shift alpha down four bits just in case unsigned
- * arithmetic doesn't handle the full range.
- * We still have plenty of accuracy, since the output is 8 bits.
- * So we have (r * 0xffff) * (a * 0xfff)) = r*a * (0xffff*0xfff)
- * Since we want r*a * 0xff for eight bit output,
- * we divide by (0xffff * 0xfff) / 0xff == 0x10eff.
- */
- for (x = w; x-- > 0;) {
- a = *wa++ >> 4;
- r = (*wr++ * a) / 0x10eff;
- g = (*wg++ * a) / 0x10eff;
- b = (*wb++ * a) / 0x10eff;
- *cp++ = PACK4(r,g,b,a);
+ uint16 *wr = (uint16*) r;
+ uint16 *wg = (uint16*) g;
+ uint16 *wb = (uint16*) b;
+ uint16 *wa = (uint16*) a;
+ (void) img; (void) y;
+ while (h-- > 0) {
+ uint32 r,g,b,a;
+ 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);
+ }
+ SKEW4(wr, wg, wb, wa, fromskew);
+ cp += toskew;
}
- SKEW4(wr, wg, wb, wa, fromskew);
- cp += toskew;
- }
}
/*
*/
DECLAREContigPutFunc(putcontig8bitYCbCr22tile)
{
- uint32* cp1 = cp+w+toskew;
- int32 incr = 2*toskew+w;
-
- (void) y;
- fromskew = (fromskew * 6) / 2;
- if ((h & 1) == 0 && (w & 1) == 0) {
- for (; h >= 2; h -= 2) {
- x = w>>1;
- do {
- int32 Cb = pp[4];
- int32 Cr = pp[5];
-
- YCbCrtoRGB(cp [0], pp[0]);
- YCbCrtoRGB(cp [1], pp[1]);
- YCbCrtoRGB(cp1[0], pp[2]);
- YCbCrtoRGB(cp1[1], pp[3]);
-
- cp += 2, cp1 += 2;
- pp += 6;
- } while (--x);
- cp += incr, cp1 += incr;
- pp += fromskew;
- }
- } else {
- while (h > 0) {
- for (x = w; x > 0;) {
- int32 Cb = pp[4];
- int32 Cr = pp[5];
- switch (x) {
- default:
- switch (h) {
- default: YCbCrtoRGB(cp1[1], pp[ 3]); /* FALLTHROUGH */
- case 1: YCbCrtoRGB(cp [1], pp[ 1]); /* FALLTHROUGH */
- } /* FALLTHROUGH */
- case 1:
- switch (h) {
- default: YCbCrtoRGB(cp1[0], pp[ 2]); /* FALLTHROUGH */
- case 1: YCbCrtoRGB(cp [0], pp[ 0]); /* FALLTHROUGH */
- } /* FALLTHROUGH */
- }
- if (x < 2) {
- cp += x; cp1 += x;
- x = 0;
- }
- else {
- cp += 2; cp1 += 2;
- x -= 2;
- }
- pp += 6;
- }
- if (h <= 2)
- break;
- h -= 2;
- cp += incr, cp1 += incr;
- pp += fromskew;
- }
- }
+ uint32* cp2;
+ int32 incr = 2*toskew+w;
+ (void) y;
+ fromskew = (fromskew / 2) * 6;
+ cp2 = cp+w+toskew;
+ while (h>=2) {
+ x = w;
+ while (x>=2) {
+ uint32 Cb = pp[4];
+ uint32 Cr = pp[5];
+ YCbCrtoRGB(cp[0], pp[0]);
+ YCbCrtoRGB(cp[1], pp[1]);
+ YCbCrtoRGB(cp2[0], pp[2]);
+ YCbCrtoRGB(cp2[1], pp[3]);
+ cp += 2;
+ cp2 += 2;
+ pp += 6;
+ x -= 2;
+ }
+ if (x==1) {
+ uint32 Cb = pp[4];
+ uint32 Cr = pp[5];
+ YCbCrtoRGB(cp[0], pp[0]);
+ YCbCrtoRGB(cp2[0], pp[2]);
+ cp ++ ;
+ cp2 ++ ;
+ pp += 6;
+ }
+ cp += incr;
+ cp2 += incr;
+ pp += fromskew;
+ h-=2;
+ }
+ if (h==1) {
+ x = w;
+ while (x>=2) {
+ uint32 Cb = pp[4];
+ uint32 Cr = pp[5];
+ YCbCrtoRGB(cp[0], pp[0]);
+ YCbCrtoRGB(cp[1], pp[1]);
+ cp += 2;
+ cp2 += 2;
+ pp += 6;
+ x -= 2;
+ }
+ if (x==1) {
+ uint32 Cb = pp[4];
+ uint32 Cr = pp[5];
+ YCbCrtoRGB(cp[0], pp[0]);
+ }
+ }
}
/*
*/
DECLAREContigPutFunc(putcontig8bitYCbCr21tile)
{
- (void) y;
- fromskew = (fromskew * 4) / 2;
- do {
- x = w>>1;
+ (void) y;
+ fromskew = (fromskew * 4) / 2;
do {
- int32 Cb = pp[2];
- int32 Cr = pp[3];
+ x = w>>1;
+ do {
+ int32 Cb = pp[2];
+ int32 Cr = pp[3];
- YCbCrtoRGB(cp[0], pp[0]);
- YCbCrtoRGB(cp[1], pp[1]);
+ YCbCrtoRGB(cp[0], pp[0]);
+ YCbCrtoRGB(cp[1], pp[1]);
- cp += 2;
- pp += 4;
- } while (--x);
+ cp += 2;
+ pp += 4;
+ } while (--x);
- if( (w&1) != 0 )
- {
- int32 Cb = pp[2];
- int32 Cr = pp[3];
-
- YCbCrtoRGB(cp [0], pp[0]);
+ if( (w&1) != 0 )
+ {
+ int32 Cb = pp[2];
+ int32 Cr = pp[3];
- cp += 1;
- pp += 4;
- }
+ YCbCrtoRGB(cp[0], pp[0]);
- cp += toskew;
- pp += fromskew;
- } while (--h);
+ cp += 1;
+ pp += 4;
+ }
+
+ cp += toskew;
+ pp += fromskew;
+ } while (--h);
+}
+
+/*
+ * 8-bit packed YCbCr samples w/ 1,2 subsampling => RGB
+ */
+DECLAREContigPutFunc(putcontig8bitYCbCr12tile)
+{
+ uint32* cp2;
+ int32 incr = 2*toskew+w;
+ (void) y;
+ fromskew = (fromskew / 2) * 4;
+ cp2 = cp+w+toskew;
+ while (h>=2) {
+ x = w;
+ do {
+ uint32 Cb = pp[2];
+ uint32 Cr = pp[3];
+ YCbCrtoRGB(cp[0], pp[0]);
+ YCbCrtoRGB(cp2[0], pp[1]);
+ cp ++;
+ cp2 ++;
+ pp += 4;
+ } while (--x);
+ cp += incr;
+ cp2 += incr;
+ pp += fromskew;
+ h-=2;
+ }
+ if (h==1) {
+ x = w;
+ do {
+ uint32 Cb = pp[2];
+ uint32 Cr = pp[3];
+ YCbCrtoRGB(cp[0], pp[0]);
+ cp ++;
+ pp += 4;
+ } while (--x);
+ }
}
/*
*/
DECLAREContigPutFunc(putcontig8bitYCbCr11tile)
{
- (void) y;
- fromskew *= 3;
- do {
- x = w; /* was x = w>>1; patched 2000/09/25 warmerda@home.com */
+ (void) y;
+ fromskew *= 3;
do {
- int32 Cb = pp[1];
- int32 Cr = pp[2];
+ x = w; /* was x = w>>1; patched 2000/09/25 warmerda@home.com */
+ do {
+ int32 Cb = pp[1];
+ int32 Cr = pp[2];
- YCbCrtoRGB(*cp++, pp[0]);
+ YCbCrtoRGB(*cp++, pp[0]);
- pp += 3;
- } while (--x);
- cp += toskew;
- pp += fromskew;
- } while (--h);
+ pp += 3;
+ } while (--x);
+ cp += toskew;
+ pp += fromskew;
+ } while (--h);
}
-#undef YCbCrtoRGB
-static tileContigRoutine
+/*
+ * 8-bit packed YCbCr samples w/ no subsampling => RGB
+ */
+DECLARESepPutFunc(putseparate8bitYCbCr11tile)
+{
+ (void) y;
+ (void) a;
+ /* TODO: naming of input vars is still off, change obfuscating declaration inside define, or resolve obfuscation */
+ while (h-- > 0) {
+ x = w;
+ do {
+ uint32 dr, dg, db;
+ TIFFYCbCrtoRGB(img->ycbcr,*r++,*g++,*b++,&dr,&dg,&db);
+ *cp++ = PACK(dr,dg,db);
+ } while (--x);
+ SKEW(r, g, b, fromskew);
+ cp += toskew;
+ }
+}
+#undef YCbCrtoRGB
+
+static int
initYCbCrConversion(TIFFRGBAImage* img)
{
- static char module[] = "initCIELabConversion";
+ static const char module[] = "initYCbCrConversion";
float *luma, *refBlackWhite;
- uint16 hs, vs;
if (img->ycbcr == NULL) {
- img->ycbcr = (TIFFYCbCrToRGB*) _TIFFmalloc(
- TIFFroundup(sizeof (TIFFYCbCrToRGB), sizeof (long))
+ img->ycbcr = (TIFFYCbCrToRGB*) _TIFFmalloc(
+ TIFFroundup_32(sizeof (TIFFYCbCrToRGB), sizeof (long))
+ 4*256*sizeof (TIFFRGBValue)
+ 2*256*sizeof (int)
+ 3*256*sizeof (int32)
- );
- if (img->ycbcr == NULL) {
+ );
+ if (img->ycbcr == NULL) {
TIFFErrorExt(img->tif->tif_clientdata, module,
- "No space for YCbCr->RGB conversion state");
- return (NULL);
- }
+ "No space for YCbCr->RGB conversion state");
+ return (0);
+ }
}
TIFFGetFieldDefaulted(img->tif, TIFFTAG_YCBCRCOEFFICIENTS, &luma);
TIFFGetFieldDefaulted(img->tif, TIFFTAG_REFERENCEBLACKWHITE,
- &refBlackWhite);
+ &refBlackWhite);
if (TIFFYCbCrToRGBInit(img->ycbcr, luma, refBlackWhite) < 0)
- return NULL;
-
- /*
- * The 6.0 spec says that subsampling must be
- * one of 1, 2, or 4, and that vertical subsampling
- * must always be <= horizontal subsampling; so
- * there are only a few possibilities and we just
- * enumerate the cases.
- */
- TIFFGetFieldDefaulted(img->tif, TIFFTAG_YCBCRSUBSAMPLING, &hs, &vs);
- switch ((hs<<4)|vs) {
- case 0x44: return (putcontig8bitYCbCr44tile);
- case 0x42: return (putcontig8bitYCbCr42tile);
- case 0x41: return (putcontig8bitYCbCr41tile);
- case 0x22: return (putcontig8bitYCbCr22tile);
- case 0x21: return (putcontig8bitYCbCr21tile);
- case 0x11: return (putcontig8bitYCbCr11tile);
- }
-
- return (NULL);
+ return(0);
+ return (1);
}
static tileContigRoutine
initCIELabConversion(TIFFRGBAImage* img)
{
- static char module[] = "initCIELabConversion";
+ static const char module[] = "initCIELabConversion";
float *whitePoint;
float refWhite[3];
return NULL;
}
- return putcontig8bitCIELab;
+ return &putcontig8bitCIELab;
}
/*
* Select the appropriate conversion routine for packed data.
*/
static int
-pickTileContigCase(TIFFRGBAImage* img)
+PickContigCase(TIFFRGBAImage* img)
{
- tileContigRoutine put = 0;
-
- if (buildMap(img)) {
+ img->get = TIFFIsTiled(img->tif) ? gtTileContig : gtStripContig;
+ img->put.contig = NULL;
switch (img->photometric) {
- case PHOTOMETRIC_RGB:
- switch (img->bitspersample) {
- case 8:
- if (!img->Map) {
- if (img->alpha == EXTRASAMPLE_ASSOCALPHA)
- put = putRGBAAcontig8bittile;
- else if (img->alpha == EXTRASAMPLE_UNASSALPHA)
- put = putRGBUAcontig8bittile;
- else
- put = putRGBcontig8bittile;
- } else
- put = putRGBcontig8bitMaptile;
- break;
- case 16:
- put = putRGBcontig16bittile;
- if (!img->Map) {
- if (img->alpha == EXTRASAMPLE_ASSOCALPHA)
- put = putRGBAAcontig16bittile;
- else if (img->alpha == EXTRASAMPLE_UNASSALPHA)
- put = putRGBUAcontig16bittile;
- }
- break;
- }
- break;
- case PHOTOMETRIC_SEPARATED:
- if (img->bitspersample == 8) {
- if (!img->Map)
- put = putRGBcontig8bitCMYKtile;
- else
- put = putRGBcontig8bitCMYKMaptile;
- }
- break;
- case PHOTOMETRIC_PALETTE:
- switch (img->bitspersample) {
- case 8: put = put8bitcmaptile; break;
- case 4: put = put4bitcmaptile; break;
- case 2: put = put2bitcmaptile; break;
- case 1: put = put1bitcmaptile; break;
- }
- break;
- case PHOTOMETRIC_MINISWHITE:
- case PHOTOMETRIC_MINISBLACK:
- switch (img->bitspersample) {
- case 16: put = put16bitbwtile; break;
- case 8: put = putgreytile; break;
- case 4: put = put4bitbwtile; break;
- case 2: put = put2bitbwtile; break;
- case 1: put = put1bitbwtile; break;
- }
- break;
- case PHOTOMETRIC_YCBCR:
- if (img->bitspersample == 8)
- put = initYCbCrConversion(img);
- break;
- case PHOTOMETRIC_CIELAB:
- if (img->bitspersample == 8)
- put = initCIELabConversion(img);
- break;
+ case PHOTOMETRIC_RGB:
+ switch (img->bitspersample) {
+ case 8:
+ if (img->alpha == EXTRASAMPLE_ASSOCALPHA)
+ img->put.contig = putRGBAAcontig8bittile;
+ else if (img->alpha == EXTRASAMPLE_UNASSALPHA)
+ {
+ if (BuildMapUaToAa(img))
+ img->put.contig = putRGBUAcontig8bittile;
+ }
+ else
+ img->put.contig = putRGBcontig8bittile;
+ break;
+ case 16:
+ if (img->alpha == EXTRASAMPLE_ASSOCALPHA)
+ {
+ if (BuildMapBitdepth16To8(img))
+ img->put.contig = putRGBAAcontig16bittile;
+ }
+ else if (img->alpha == EXTRASAMPLE_UNASSALPHA)
+ {
+ if (BuildMapBitdepth16To8(img) &&
+ BuildMapUaToAa(img))
+ img->put.contig = putRGBUAcontig16bittile;
+ }
+ else
+ {
+ if (BuildMapBitdepth16To8(img))
+ img->put.contig = putRGBcontig16bittile;
+ }
+ break;
+ }
+ break;
+ case PHOTOMETRIC_SEPARATED:
+ if (buildMap(img)) {
+ if (img->bitspersample == 8) {
+ if (!img->Map)
+ img->put.contig = putRGBcontig8bitCMYKtile;
+ else
+ img->put.contig = putRGBcontig8bitCMYKMaptile;
+ }
+ }
+ break;
+ case PHOTOMETRIC_PALETTE:
+ if (buildMap(img)) {
+ switch (img->bitspersample) {
+ case 8:
+ img->put.contig = put8bitcmaptile;
+ break;
+ case 4:
+ img->put.contig = put4bitcmaptile;
+ break;
+ case 2:
+ img->put.contig = put2bitcmaptile;
+ break;
+ case 1:
+ img->put.contig = put1bitcmaptile;
+ break;
+ }
+ }
+ break;
+ case PHOTOMETRIC_MINISWHITE:
+ case PHOTOMETRIC_MINISBLACK:
+ if (buildMap(img)) {
+ switch (img->bitspersample) {
+ case 16:
+ img->put.contig = put16bitbwtile;
+ break;
+ case 8:
+ if (img->alpha && img->samplesperpixel == 2)
+ img->put.contig = putagreytile;
+ else
+ img->put.contig = putgreytile;
+ break;
+ case 4:
+ img->put.contig = put4bitbwtile;
+ break;
+ case 2:
+ img->put.contig = put2bitbwtile;
+ break;
+ case 1:
+ img->put.contig = put1bitbwtile;
+ break;
+ }
+ }
+ break;
+ case PHOTOMETRIC_YCBCR:
+ if ((img->bitspersample==8) && (img->samplesperpixel==3))
+ {
+ if (initYCbCrConversion(img)!=0)
+ {
+ /*
+ * The 6.0 spec says that subsampling must be
+ * one of 1, 2, or 4, and that vertical subsampling
+ * 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
+ * some OJPEG files
+ */
+ uint16 SubsamplingHor;
+ uint16 SubsamplingVer;
+ TIFFGetFieldDefaulted(img->tif, TIFFTAG_YCBCRSUBSAMPLING, &SubsamplingHor, &SubsamplingVer);
+ switch ((SubsamplingHor<<4)|SubsamplingVer) {
+ case 0x44:
+ img->put.contig = putcontig8bitYCbCr44tile;
+ break;
+ case 0x42:
+ img->put.contig = putcontig8bitYCbCr42tile;
+ break;
+ case 0x41:
+ img->put.contig = putcontig8bitYCbCr41tile;
+ break;
+ case 0x22:
+ img->put.contig = putcontig8bitYCbCr22tile;
+ break;
+ case 0x21:
+ img->put.contig = putcontig8bitYCbCr21tile;
+ break;
+ case 0x12:
+ img->put.contig = putcontig8bitYCbCr12tile;
+ break;
+ case 0x11:
+ img->put.contig = putcontig8bitYCbCr11tile;
+ break;
+ }
+ }
+ }
+ break;
+ case PHOTOMETRIC_CIELAB:
+ if (buildMap(img)) {
+ if (img->bitspersample == 8)
+ img->put.contig = initCIELabConversion(img);
+ break;
+ }
}
- }
- return ((img->put.contig = put) != 0);
+ return ((img->get!=NULL) && (img->put.contig!=NULL));
}
/*
* to the "packed routines.
*/
static int
-pickTileSeparateCase(TIFFRGBAImage* img)
+PickSeparateCase(TIFFRGBAImage* img)
{
- tileSeparateRoutine put = 0;
-
- if (buildMap(img)) {
+ img->get = TIFFIsTiled(img->tif) ? gtTileSeparate : gtStripSeparate;
+ img->put.separate = NULL;
switch (img->photometric) {
+ case PHOTOMETRIC_MINISWHITE:
+ case PHOTOMETRIC_MINISBLACK:
+ /* greyscale images processed pretty much as RGB by gtTileSeparate */
case PHOTOMETRIC_RGB:
- switch (img->bitspersample) {
- case 8:
- if (!img->Map) {
- if (img->alpha == EXTRASAMPLE_ASSOCALPHA)
- put = putRGBAAseparate8bittile;
- else if (img->alpha == EXTRASAMPLE_UNASSALPHA)
- put = putRGBUAseparate8bittile;
- else
- put = putRGBseparate8bittile;
- } else
- put = putRGBseparate8bitMaptile;
+ switch (img->bitspersample) {
+ case 8:
+ if (img->alpha == EXTRASAMPLE_ASSOCALPHA)
+ img->put.separate = putRGBAAseparate8bittile;
+ else if (img->alpha == EXTRASAMPLE_UNASSALPHA)
+ {
+ if (BuildMapUaToAa(img))
+ img->put.separate = putRGBUAseparate8bittile;
+ }
+ else
+ img->put.separate = putRGBseparate8bittile;
+ break;
+ case 16:
+ if (img->alpha == EXTRASAMPLE_ASSOCALPHA)
+ {
+ if (BuildMapBitdepth16To8(img))
+ img->put.separate = putRGBAAseparate16bittile;
+ }
+ else if (img->alpha == EXTRASAMPLE_UNASSALPHA)
+ {
+ if (BuildMapBitdepth16To8(img) &&
+ BuildMapUaToAa(img))
+ img->put.separate = putRGBUAseparate16bittile;
+ }
+ else
+ {
+ if (BuildMapBitdepth16To8(img))
+ img->put.separate = putRGBseparate16bittile;
+ }
+ break;
+ }
break;
- case 16:
- put = putRGBseparate16bittile;
- if (!img->Map) {
- if (img->alpha == EXTRASAMPLE_ASSOCALPHA)
- put = putRGBAAseparate16bittile;
- else if (img->alpha == EXTRASAMPLE_UNASSALPHA)
- put = putRGBUAseparate16bittile;
+ case PHOTOMETRIC_SEPARATED:
+ if (img->bitspersample == 8 && img->samplesperpixel == 4)
+ {
+ img->alpha = 1; // Not alpha, but seems like the only way to get 4th band
+ img->put.separate = putCMYKseparate8bittile;
+ }
+ break;
+ case PHOTOMETRIC_YCBCR:
+ if ((img->bitspersample==8) && (img->samplesperpixel==3))
+ {
+ if (initYCbCrConversion(img)!=0)
+ {
+ uint16 hs, vs;
+ TIFFGetFieldDefaulted(img->tif, TIFFTAG_YCBCRSUBSAMPLING, &hs, &vs);
+ switch ((hs<<4)|vs) {
+ case 0x11:
+ img->put.separate = putseparate8bitYCbCr11tile;
+ break;
+ /* TODO: add other cases here */
+ }
+ }
}
break;
- }
- break;
}
- }
- return ((img->put.separate = put) != 0);
+ return ((img->get!=NULL) && (img->put.separate!=NULL));
+}
+
+static int
+BuildMapUaToAa(TIFFRGBAImage* img)
+{
+ static const char module[]="BuildMapUaToAa";
+ uint8* m;
+ uint16 na,nv;
+ assert(img->UaToAa==NULL);
+ img->UaToAa=_TIFFmalloc(65536);
+ if (img->UaToAa==NULL)
+ {
+ TIFFErrorExt(img->tif->tif_clientdata,module,"Out of memory");
+ return(0);
+ }
+ m=img->UaToAa;
+ for (na=0; na<256; na++)
+ {
+ for (nv=0; nv<256; nv++)
+ *m++=(nv*na+127)/255;
+ }
+ return(1);
+}
+
+static int
+BuildMapBitdepth16To8(TIFFRGBAImage* img)
+{
+ static const char module[]="BuildMapBitdepth16To8";
+ uint8* m;
+ uint32 n;
+ assert(img->Bitdepth16To8==NULL);
+ img->Bitdepth16To8=_TIFFmalloc(65536);
+ if (img->Bitdepth16To8==NULL)
+ {
+ TIFFErrorExt(img->tif->tif_clientdata,module,"Out of memory");
+ return(0);
+ }
+ m=img->Bitdepth16To8;
+ for (n=0; n<65536; n++)
+ *m++=(n+128)/257;
+ return(1);
}
+
/*
* Read a whole strip off data from the file, and convert to RGBA form.
* If this is the last strip, then it will only contain the portion of
TIFFRGBAImageEnd(&img);
} else {
- TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), emsg);
+ TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "%s", emsg);
ok = 0;
}
if (!TIFFRGBAImageOK(tif, emsg)
|| !TIFFRGBAImageBegin(&img, tif, 0, emsg)) {
- TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), emsg);
+ TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif), "%s", emsg);
return( 0 );
}
}
/* vim: set ts=8 sts=8 sw=8 noet: */
+/*
+ * Local Variables:
+ * mode: c
+ * c-basic-offset: 8
+ * fill-column: 78
+ * End:
+ */
projects / wxWidgets.git / blobdiff