forked from Lainports/opnsense-ports
26 lines
1.3 KiB
Text
26 lines
1.3 KiB
Text
See https://sourceforge.net/p/openil/patches/43/
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This patch will cause TIFFs with only a single color channel to be
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saved as such, rather than as RGB.
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--- src-IL/src/il_tiff.c (revision 1663)
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+++ src-IL/src/il_tiff.c (working copy)
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@@ -987,11 +987,15 @@
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TIFFSetField(File, TIFFTAG_IMAGEWIDTH, TempImage->Width);
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TIFFSetField(File, TIFFTAG_IMAGELENGTH, TempImage->Height);
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TIFFSetField(File, TIFFTAG_COMPRESSION, Compression);
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- TIFFSetField(File, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_RGB);
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+ if((TempImage->Format == IL_LUMINANCE) || (TempImage->Format == IL_LUMINANCE_ALPHA))
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+ TIFFSetField(File, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_MINISBLACK);
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+ else
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+ TIFFSetField(File, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_RGB);
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TIFFSetField(File, TIFFTAG_BITSPERSAMPLE, TempImage->Bpc << 3);
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TIFFSetField(File, TIFFTAG_SAMPLESPERPIXEL, TempImage->Bpp);
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- if (TempImage->Bpp == 4) //TODO: LUMINANCE, LUMINANCE_ALPHA
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- TIFFSetField(File, TIFFTAG_MATTEING, 1);
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+ if ((TempImage->Bpp == ilGetBppFormat(IL_RGBA)) ||
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+ (TempImage->Bpp == ilGetBppFormat(IL_LUMINANCE_ALPHA)))
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+ TIFFSetField(File, TIFFTAG_EXTRASAMPLES, EXTRASAMPLE_ASSOCALPHA);
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TIFFSetField(File, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
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TIFFSetField(File, TIFFTAG_ROWSPERSTRIP, 1);
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TIFFSetField(File, TIFFTAG_SOFTWARE, ilGetString(IL_VERSION_NUM));
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