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use correct blend proc instead of fourbyteinterp, since the src may not be opaque

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fixes DumpRenderTree failure



git-svn-id: http://skia.googlecode.com/svn/trunk@6457 2bbb7eff-a529-9590-31e7-b0007b416f81
This commit is contained in:
reed@google.com 2012-11-16 14:46:00 +00:00
parent aef73617d1
commit 59d968fb29
1 changed files with 2 additions and 2 deletions
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4
src/core/SkBlitter_ARGB32.cpp
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@ -631,10 +631,10 @@ void SkARGB32_Shader_Blitter::blitV(int x, int y, int height, SkAlpha alpha) {
device = (uint32_t*)((char*)device + deviceRB);
} while (--height > 0);
} else {
// can't use fProc, since we need to use an unknown alpha
SkBlitRow::Proc32 proc = (255 == alpha) ? fProc32 : fProc32Blend;
do {
shader->shadeSpan(x, y, span, 1);
*device = SkFourByteInterp(*span, *device, alpha);
proc(device, span, 1, alpha);
y += 1;
device = (uint32_t*)((char*)device + deviceRB);
} while (--height > 0);