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| author | Robin Watts <robin.watts@artifex.com> | 2016-10-06 17:45:36 +0100 |
|---|---|---|
| committer | Robin Watts <robin.watts@artifex.com> | 2016-10-07 16:56:46 +0100 |
| commit | a9543691208e92c4ff8f7d1ff39d95543b557c60 (patch) | |
| tree | 190c42e1c43553d6a5a59c2c3a96522c5b54243f /source/fitz/draw-paint.c | |
| parent | e28172f2caef1b89e4f43cc76bf2d510eeb1dc3e (diff) | |
| download | mupdf-a9543691208e92c4ff8f7d1ff39d95543b557c60.tar.xz | |
Tweak painters: If painting 0 alpha, skip it.
Diffstat (limited to 'source/fitz/draw-paint.c')
| -rw-r--r-- | source/fitz/draw-paint.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/source/fitz/draw-paint.c b/source/fitz/draw-paint.c index 96bff706..061ee630 100644 --- a/source/fitz/draw-paint.c +++ b/source/fitz/draw-paint.c @@ -879,6 +879,12 @@ template_span_with_mask_1_general(byte * restrict dp, int da, const byte * restr { if (sa) { + if (sp[1] == 0) + { + sp += 2; + dp += 1+da; + continue; + } masa = FZ_COMBINE(sp[1], ma); masa = 255 - masa; masa = FZ_EXPAND(masa); @@ -964,6 +970,12 @@ template_span_with_mask_3_general(byte * restrict dp, int da, const byte * restr /* FIXME: There is potential for SWAR optimisation here */ if (sa) { + if (sp[3] == 0) + { + sp += 4; + dp += 3+da; + continue; + } masa = FZ_COMBINE(sp[3], ma); masa = 255 - masa; masa = FZ_EXPAND(masa); @@ -1051,6 +1063,12 @@ template_span_with_mask_4_general(byte * restrict dp, int da, const byte * restr { if (sa) { + if (sp[4] == 0) + { + sp += 5; + dp += 4+da; + continue; + } masa = FZ_COMBINE(sp[4], ma); masa = 255 - masa; masa = FZ_EXPAND(masa); @@ -1140,6 +1158,12 @@ template_span_with_mask_N_general(byte * restrict dp, int da, const byte * restr if (sa) { int masa; + if (sp[n] == 0) + { + sp += n+1; + dp += n+da; + continue; + } masa = FZ_COMBINE(sp[n], ma); masa = 255-masa; masa = FZ_EXPAND(masa); |