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Solving issue 1776: "Support for TIFF files with alpha channel (RGBA)"

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natureh 510
2013-03-20 22:16:07 +01:00
parent ab22580efd
commit ea6b286325
1 changed files with 28 additions and 30 deletions
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58
rtengine/imageio.cc
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@@ -532,43 +532,41 @@ int ImageIO::getTIFFSampleFormat (Glib::ustring fname, IIOSampleFormat &sFormat,
TIFFClose(in);
if (samplesperpixel==3) {
if (photometric == PHOTOMETRIC_RGB) {
if (sampleformat==SAMPLEFORMAT_UINT) {
if (bitspersample==8) {
sFormat = IIOSF_UNSIGNED_CHAR;
return IMIO_SUCCESS;
}
if (bitspersample==16) {
sFormat = IIOSF_UNSIGNED_SHORT;
return IMIO_SUCCESS;
}
if (photometric == PHOTOMETRIC_RGB) {
if ((samplesperpixel==3 || samplesperpixel==4) && sampleformat==SAMPLEFORMAT_UINT) {
if (bitspersample==8) {
sFormat = IIOSF_UNSIGNED_CHAR;
return IMIO_SUCCESS;
}
else if (sampleformat==SAMPLEFORMAT_IEEEFP) {
/*
* Not yet supported
*
if (bitspersample==16) {
sFormat = IIOSF_HALF;
return IMIO_SUCCESS;
}*/
if (bitspersample==32) {
sFormat = IIOSF_FLOAT;
return IMIO_SUCCESS;
}
if (bitspersample==16) {
sFormat = IIOSF_UNSIGNED_SHORT;
return IMIO_SUCCESS;
}
}
else if (photometric == PHOTOMETRIC_LOGLUV) {
if (compression==COMPRESSION_SGILOG24) {
sFormat = IIOSF_LOGLUV24;
return IMIO_SUCCESS;
}
else if (compression==COMPRESSION_SGILOG) {
sFormat = IIOSF_LOGLUV32;
else if (samplesperpixel==3 && sampleformat==SAMPLEFORMAT_IEEEFP) {
/*
* Not yet supported
*
if (bitspersample==16) {
sFormat = IIOSF_HALF;
return IMIO_SUCCESS;
}*/
if ((samplesperpixel==3 || samplesperpixel==4) && bitspersample==32) {
sFormat = IIOSF_FLOAT;
return IMIO_SUCCESS;
}
}
}
else if (samplesperpixel==3 && photometric == PHOTOMETRIC_LOGLUV) {
if (compression==COMPRESSION_SGILOG24) {
sFormat = IIOSF_LOGLUV24;
return IMIO_SUCCESS;
}
else if (compression==COMPRESSION_SGILOG) {
sFormat = IIOSF_LOGLUV32;
return IMIO_SUCCESS;
}
}
return IMIO_VARIANTNOTSUPPORTED;
}