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fix cairoblend input 1 alpha not copied

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Dan Dennedy
2021-12-23 13:16:56 -08:00
parent 5e74dfa3ad
commit e48da90c4e
1 changed files with 2 additions and 0 deletions
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2
include/frei0r_cairo.h
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@@ -292,6 +292,8 @@ void frei0r_cairo_premultiply_rgba2 (unsigned char *in, unsigned char *out,
out[0] = ( in[0] * a ) >> 8; out[0] = ( in[0] * a ) >> 8;
out[1] = ( in[1] * a ) >> 8; out[1] = ( in[1] * a ) >> 8;
out[2] = ( in[2] * a ) >> 8; out[2] = ( in[2] * a ) >> 8;
if (alpha < 0)
out[3] = a;
} }
if (alpha >= 0) if (alpha >= 0)
out[3] = alpha; out[3] = alpha;