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Hairline stroke 1px wide paths.

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Review URL: http://codereview.appspot.com/4317041/



git-svn-id: http://skia.googlecode.com/svn/trunk@1008 2bbb7eff-a529-9590-31e7-b0007b416f81
This commit is contained in:
bsalomon@google.com 2011-03-25 18:04:43 +00:00
parent 7eb492e839
commit 04de782d7c
1 changed files with 16 additions and 1 deletions
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17
src/gpu/SkGpuDevice.cpp
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@ -771,7 +771,22 @@ void SkGpuDevice::drawPath(const SkDraw& draw, const SkPath& origSrcPath,
// at this point we're done with prePathMatrix
SkDEBUGCODE(prePathMatrix = (const SkMatrix*)0x50FF8001;)
if (paint.getPathEffect() || paint.getStyle() != SkPaint::kFill_Style) {
// This "if" is not part of the SkDraw::drawPath() lift.
// When we get a 1.0 wide stroke we hairline stroke it instead of creating
// a new stroked-path. This is motivated by canvas2D sites that draw
// lines as 1.0 wide stroked paths. We can consider doing an alpha-modulated-
// hairline for width < 1.0 when AA is enabled.
static const int gMatrixMask = ~(SkMatrix::kIdentity_Mask |
SkMatrix::kTranslate_Mask);
if (!paint.getPathEffect() &&
SkPaint::kStroke_Style == paint.getStyle() &&
!(draw.fMatrix->getType() & gMatrixMask) &&
SK_Scalar1 == paint.getStrokeWidth()) {
doFill = false;
}
if (doFill && (paint.getPathEffect() ||
paint.getStyle() != SkPaint::kFill_Style)) {
doFill = paint.getFillPath(*pathPtr, &tmpPath);
pathPtr = &tmpPath;
}