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openSUSE:Maintenance:17658
mupdf.openSUSE_Backports_SLE-15-SP3_Update
0001-Bug-701176-Handle-TIFFs-with-alpha-that-ha...
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File 0001-Bug-701176-Handle-TIFFs-with-alpha-that-have-more-th.patch of Package mupdf.openSUSE_Backports_SLE-15-SP3_Update
From cdd916c66d1f66caa57b2bb738bfc4a202d388e4 Mon Sep 17 00:00:00 2001 From: Sebastian Rasmussen <sebras@gmail.com> Date: Mon, 10 Jun 2019 13:58:28 +0200 Subject: [PATCH 1/2] Bug 701176: Handle TIFFs with alpha that have more than 8 bits per sample. (cherry picked from commit b7892cdc7fae62aa57d63ae62144e1f11b5f9275) --- source/fitz/load-tiff.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/source/fitz/load-tiff.c b/source/fitz/load-tiff.c index 80abd6f1f..993f24bba 100644 --- a/source/fitz/load-tiff.c +++ b/source/fitz/load-tiff.c @@ -268,7 +268,10 @@ tiff_expand_colormap(fz_context *ctx, struct tiff *tiff) *dst++ = tiff->colormap[c + 0] >> 8; *dst++ = tiff->colormap[c + maxval] >> 8; *dst++ = tiff->colormap[c + maxval * 2] >> 8; - *dst++ = a << (8 - tiff->bitspersample); + if (tiff->bitspersample <= 8) + *dst++ = a << (8 - tiff->bitspersample); + else + *dst++ = a >> (tiff->bitspersample - 8); } else { -- 2.31.1
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