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| author | Robin Watts <robin.watts@artifex.com> | 2016-10-06 16:53:35 +0100 |
|---|---|---|
| committer | Robin Watts <robin.watts@artifex.com> | 2016-10-07 16:56:46 +0100 |
| commit | e28172f2caef1b89e4f43cc76bf2d510eeb1dc3e (patch) | |
| tree | 15ca079c2c67a2f034a533afda2b2ca242232720 | |
| parent | 0e84c79eee422eb4724ff25baa4183d5e0fdb662 (diff) | |
| download | mupdf-e28172f2caef1b89e4f43cc76bf2d510eeb1dc3e.tar.xz | |
Tweak painters.
If we have a source alpha, and it's 0, then nothing to paint.
| -rw-r--r-- | source/fitz/draw-paint.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/source/fitz/draw-paint.c b/source/fitz/draw-paint.c index 00b3868d..96bff706 100644 --- a/source/fitz/draw-paint.c +++ b/source/fitz/draw-paint.c @@ -847,7 +847,7 @@ template_span_with_mask_1_general(byte * restrict dp, int da, const byte * restr int masa; int ma = *mp++; ma = FZ_EXPAND(ma); - if (ma == 0) + if (ma == 0 || (sa && sp[1] == 0)) { dp += 1 + da; sp += 1 + sa; @@ -915,7 +915,7 @@ template_span_with_mask_3_general(byte * restrict dp, int da, const byte * restr int masa; int ma = *mp++; ma = FZ_EXPAND(ma); - if (ma == 0) + if (ma == 0 || (sa && sp[3] == 0)) { dp += 3 + da; sp += 3 + sa; @@ -1008,7 +1008,7 @@ template_span_with_mask_4_general(byte * restrict dp, int da, const byte * restr int masa; int ma = *mp++; ma = FZ_EXPAND(ma); - if (ma == 0) + if (ma == 0 || (sa && sp[4] == 0)) { dp += 4 + da; sp += 4 + sa; @@ -1097,7 +1097,7 @@ template_span_with_mask_N_general(byte * restrict dp, int da, const byte * restr { int ma = *mp++; ma = FZ_EXPAND(ma); - if (ma == 0) + if (ma == 0 || (sa && sp[n] == 0)) { dp += n + da; sp += n + sa; |