AuroraMiddleware/skia2
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stop dropping AA when rect stays rect

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BUG=skia:

Review URL: https://codereview.chromium.org/1295523002
This commit is contained in:
joshualitt 2015-08-14 07:10:57 -07:00 committed by Commit bot
parent b0a32cc38f
commit 1bef9f59c5
1 changed files with 9 additions and 33 deletions
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42
src/gpu/GrDrawContext.cpp
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@ -204,35 +204,6 @@ void GrDrawContext::drawPaint(GrRenderTarget* rt,
}
}
static inline bool is_irect(const SkRect& r) {
return SkScalarIsInt(r.fLeft) && SkScalarIsInt(r.fTop) &&
SkScalarIsInt(r.fRight) && SkScalarIsInt(r.fBottom);
}
static bool apply_aa_to_rect(GrDrawTarget* target,
GrPipelineBuilder* pipelineBuilder,
SkRect* devBoundRect,
const SkRect& rect,
SkScalar strokeWidth,
const SkMatrix& combinedMatrix,
GrColor color) {
if (pipelineBuilder->getRenderTarget()->isUnifiedMultisampled() ||
!combinedMatrix.preservesAxisAlignment()) {
return false;
}
combinedMatrix.mapRect(devBoundRect, rect);
if (!combinedMatrix.rectStaysRect()) {
return true;
}
if (strokeWidth < 0) {
return !is_irect(*devBoundRect);
}
return true;
}
static inline bool rect_contains_inclusive(const SkRect& rect, const SkPoint& point) {
return point.fX >= rect.fLeft && point.fX <= rect.fRight &&
point.fY >= rect.fTop && point.fY <= rect.fBottom;
@ -297,13 +268,18 @@ void GrDrawContext::drawRect(GrRenderTarget* rt,
}
GrColor color = paint.getColor();
SkRect devBoundRect;
bool needAA = paint.isAntiAlias() &&
!pipelineBuilder.getRenderTarget()->isUnifiedMultisampled();
bool doAA = needAA && apply_aa_to_rect(fDrawTarget, &pipelineBuilder, &devBoundRect, rect,
width, viewMatrix, color);
if (doAA) {
// The fill path can handle rotation but not skew
// The stroke path needs the rect to remain axis aligned (no rotation or skew)
// None of our draw rect calls can handle perspective yet
SkASSERT(!viewMatrix.hasPerspective());
bool canApplyAA = width >=0 ? viewMatrix.rectStaysRect() : viewMatrix.preservesRightAngles();
if (needAA && canApplyAA) {
SkRect devBoundRect;
viewMatrix.mapRect(&devBoundRect, rect);
SkAutoTUnref<GrDrawBatch> batch;
if (width >= 0) {
batch.reset(GrRectBatchFactory::CreateStrokeAA(color, viewMatrix, rect, devBoundRect,