static int
tiffcvt(TIFF* in, TIFF* out)
{
uint32 width, height; /* image width & height */
uint32* raster; /* retrieve RGBA image */
uint16 shortv;
float floatv;
char *stringv;
uint32 longv;
TIFFGetField(in, TIFFTAG_IMAGEWIDTH, &width);
TIFFGetField(in, TIFFTAG_IMAGELENGTH, &height);
raster = (uint32*)_TIFFmalloc(width * height * sizeof (uint32));
if (raster == 0) {
TIFFError(TIFFFileName(in), "No space for raster buffer");
return (0);
}
if (!TIFFReadRGBAImage(in, width, height, raster, 0)) {
_TIFFfree(raster);
return (0);
}
CopyField(TIFFTAG_SUBFILETYPE, longv);
TIFFSetField(out, TIFFTAG_IMAGEWIDTH, width);
TIFFSetField(out, TIFFTAG_IMAGELENGTH, height);
TIFFSetField(out, TIFFTAG_BITSPERSAMPLE, 8);
TIFFSetField(out, TIFFTAG_COMPRESSION, compression);
TIFFSetField(out, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_YCBCR);
if (compression == COMPRESSION_JPEG)
TIFFSetField(out, TIFFTAG_JPEGCOLORMODE, JPEGCOLORMODE_RAW);
CopyField(TIFFTAG_FILLORDER, shortv);
TIFFSetField(out, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT);
TIFFSetField(out, TIFFTAG_SAMPLESPERPIXEL, 3);
CopyField(TIFFTAG_XRESOLUTION, floatv);
CopyField(TIFFTAG_YRESOLUTION, floatv);
CopyField(TIFFTAG_RESOLUTIONUNIT, shortv);
TIFFSetField(out, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
{ char buf[2048];
char *cp = strrchr(TIFFFileName(in), '/');
sprintf(buf, "YCbCr conversion of %s", cp ? cp+1 : TIFFFileName(in));
TIFFSetField(out, TIFFTAG_IMAGEDESCRIPTION, buf);
}
TIFFSetField(out, TIFFTAG_SOFTWARE, TIFFGetVersion());
CopyField(TIFFTAG_DOCUMENTNAME, stringv);
TIFFSetField(out, TIFFTAG_REFERENCEBLACKWHITE, refBlackWhite);
TIFFSetField(out, TIFFTAG_YCBCRSUBSAMPLING,
horizSubSampling, vertSubSampling);
TIFFSetField(out, TIFFTAG_YCBCRPOSITIONING, YCBCRPOSITION_CENTERED);
TIFFSetField(out, TIFFTAG_YCBCRCOEFFICIENTS, ycbcrCoeffs);
rowsperstrip = TIFFDefaultStripSize(out, rowsperstrip);
TIFFSetField(out, TIFFTAG_ROWSPERSTRIP, rowsperstrip);
return (cvtRaster(out, raster, width, height));
}
static int
tiffcvt(TIFF* in, TIFF* out)
{
uint32 width, height; /* image width & height */
uint32* raster; /* retrieve RGBA image */
uint16 shortv;
float floatv;
char *stringv;
uint32 longv;
size_t pixel_count;
TIFFGetField(in, TIFFTAG_IMAGEWIDTH, &width);
TIFFGetField(in, TIFFTAG_IMAGELENGTH, &height);
pixel_count = width * height;
/* XXX: Check the integer overflow. */
if (!width || !height || pixel_count / width != height) {
TIFFError(TIFFFileName(in),
"Malformed input file; "
"can't allocate buffer for raster of %lux%lu size",
(unsigned long)width, (unsigned long)height);
return 0;
}
raster = (uint32*)_TIFFCheckMalloc(in, pixel_count, sizeof(uint32),
"raster buffer");
if (raster == 0) {
TIFFError(TIFFFileName(in),
"Requested buffer size is %lu elements %lu each",
(unsigned long)pixel_count,
(unsigned long)sizeof(uint32));
return (0);
}
if (!TIFFReadRGBAImage(in, width, height, raster, 0)) {
_TIFFfree(raster);
return (0);
}
CopyField(TIFFTAG_SUBFILETYPE, longv);
TIFFSetField(out, TIFFTAG_IMAGEWIDTH, width);
TIFFSetField(out, TIFFTAG_IMAGELENGTH, height);
TIFFSetField(out, TIFFTAG_BITSPERSAMPLE, 8);
TIFFSetField(out, TIFFTAG_COMPRESSION, compression);
TIFFSetField(out, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_YCBCR);
if (compression == COMPRESSION_JPEG)
TIFFSetField(out, TIFFTAG_JPEGCOLORMODE, JPEGCOLORMODE_RAW);
CopyField(TIFFTAG_FILLORDER, shortv);
TIFFSetField(out, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT);
TIFFSetField(out, TIFFTAG_SAMPLESPERPIXEL, 3);
CopyField(TIFFTAG_XRESOLUTION, floatv);
CopyField(TIFFTAG_YRESOLUTION, floatv);
CopyField(TIFFTAG_RESOLUTIONUNIT, shortv);
TIFFSetField(out, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
{ char buf[2048];
char *cp = strrchr(TIFFFileName(in), '/');
sprintf(buf, "YCbCr conversion of %s", cp ? cp+1 : TIFFFileName(in));
TIFFSetField(out, TIFFTAG_IMAGEDESCRIPTION, buf);
}
TIFFSetField(out, TIFFTAG_SOFTWARE, TIFFGetVersion());
CopyField(TIFFTAG_DOCUMENTNAME, stringv);
TIFFSetField(out, TIFFTAG_REFERENCEBLACKWHITE, refBlackWhite);
TIFFSetField(out, TIFFTAG_YCBCRSUBSAMPLING,
horizSubSampling, vertSubSampling);
TIFFSetField(out, TIFFTAG_YCBCRPOSITIONING, YCBCRPOSITION_CENTERED);
TIFFSetField(out, TIFFTAG_YCBCRCOEFFICIENTS, ycbcrCoeffs);
rowsperstrip = TIFFDefaultStripSize(out, rowsperstrip);
TIFFSetField(out, TIFFTAG_ROWSPERSTRIP, rowsperstrip);
return (cvtRaster(out, raster, width, height));
}