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if we are extending past our clip in antihairlines, don't draw that last

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row/col (setting its scale to 0), so we don't violate the clip-rule and
possibly double-draw the last pixel.



git-svn-id: http://skia.googlecode.com/svn/trunk@3366 2bbb7eff-a529-9590-31e7-b0007b416f81
This commit is contained in:
reed@google.com 2012-03-12 20:26:17 +00:00
parent f9f258c656
commit adb2e24018
1 changed files with 4 additions and 4 deletions
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8
src/core/SkScan_Antihair.cpp
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@ -271,9 +271,9 @@ static void do_anti_hairline(SkFDot6 x0, SkFDot6 y0, SkFDot6 x1, SkFDot6 y1,
istart = clip->fLeft;
scaleStart = 64;
}
if (istop > clip->fRight) {
if (istop >= clip->fRight) {
istop = clip->fRight;
scaleStop = 64;
scaleStop = 0; // so we don't draw this last column
}
SkASSERT(istart <= istop);
if (istart == istop) {
@ -340,9 +340,9 @@ static void do_anti_hairline(SkFDot6 x0, SkFDot6 y0, SkFDot6 x1, SkFDot6 y1,
istart = clip->fTop;
scaleStart = 64;
}
if (istop > clip->fBottom) {
if (istop >= clip->fBottom) {
istop = clip->fBottom;
scaleStop = 64;
scaleStop = 0; // so we don't draw this last row
}
SkASSERT(istart <= istop);
if (istart == istop)