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Fix rect clips

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R=joshualitt@google.com

Review URL: https://codereview.chromium.org/987653004
This commit is contained in:
bsalomon 2015-03-06 07:13:01 -08:00 committed by Commit bot
parent 91fd7371ec
commit 96e02a8f3f
1 changed files with 44 additions and 48 deletions
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92
src/gpu/GrClipMaskManager.cpp
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@ -165,7 +165,7 @@ bool GrClipMaskManager::installClipEffects(GrPipelineBuilder* pipelineBuilder,
invert ? kInverseFillAA_GrProcessorEdgeType : kFillAA_GrProcessorEdgeType;
} else {
edgeType =
invert ? kInverseFillBW_GrProcessorEdgeType : kFillBW_GrProcessorEdgeType;
invert ? kInverseFillBW_GrProcessorEdgeType : kFillBW_GrProcessorEdgeType;
}
SkAutoTUnref<GrFragmentProcessor> fp;
switch (iter.get()->getType()) {
@ -229,57 +229,53 @@ bool GrClipMaskManager::setupClipping(GrPipelineBuilder* pipelineBuilder,
SkIRect clipSpaceRTIBounds = SkIRect::MakeWH(rt->width(), rt->height());
const GrClip& clip = pipelineBuilder->clip();
// TODO we shouldn't be ignoring the clip mask manager's clip. This is temporary.
bool ignoreClip = clip.isWideOpen(clipSpaceRTIBounds);
if (!ignoreClip) {
// The clip mask manager always draws with a single IRect so we special case that logic here
// Image filters just use a rect, so we also special case that logic
switch (clip.clipType()) {
case GrClip::kWideOpen_ClipType:
// we should have handled this case above
SkASSERT(false);
case GrClip::kIRect_ClipType: {
clipSpaceIBounds = clip.irect();
SkNEW_INSERT_AT_LLIST_HEAD(&elements,
Element,
(SkRect::Make(clipSpaceIBounds),
SkRegion::kIntersect_Op, false));
} break;
case GrClip::kRect_ClipType: {
clipSpaceIBounds.setLTRB(SkScalarCeilToInt(clip.rect().fLeft),
SkScalarCeilToInt(clip.rect().fTop),
SkScalarCeilToInt(clip.rect().fRight),
SkScalarCeilToInt(clip.rect().fBottom));
SkNEW_INSERT_AT_LLIST_HEAD(&elements,
Element,
(SkRect::Make(clipSpaceIBounds),
SkRegion::kIntersect_Op, false));
} break;
case GrClip::kClipStack_ClipType: {
clipSpaceRTIBounds.offset(clip.origin());
GrReducedClip::ReduceClipStack(*clip.clipStack(),
clipSpaceRTIBounds,
&elements,
&genID,
&initialState,
&clipSpaceIBounds,
&requiresAA);
if (elements.isEmpty()) {
if (GrReducedClip::kAllIn_InitialState == initialState) {
ignoreClip = clipSpaceIBounds == clipSpaceRTIBounds;
} else {
return false;
}
}
} break;
}
}
if (ignoreClip) {
if (clip.isWideOpen(clipSpaceRTIBounds)) {
this->setPipelineBuilderStencil(pipelineBuilder, ars);
return true;
}
// The clip mask manager always draws with a single IRect so we special case that logic here
// Image filters just use a rect, so we also special case that logic
switch (clip.clipType()) {
case GrClip::kWideOpen_ClipType:
SkFAIL("Should have caught this with clip.isWideOpen()");
return true;
case GrClip::kIRect_ClipType:
scissorState->set(clip.irect());
this->setPipelineBuilderStencil(pipelineBuilder, ars);
return true;
case GrClip::kRect_ClipType: {
const SkRect& rect = clip.rect();
SkIRect scissor;
scissor.fLeft = SkScalarRoundToInt(rect.fLeft);
scissor.fTop = SkScalarRoundToInt(rect.fTop);
scissor.fRight = SkScalarRoundToInt(rect.fRight);
scissor.fBottom = SkScalarRoundToInt(rect.fBottom);
scissorState->set(scissor);
this->setPipelineBuilderStencil(pipelineBuilder, ars);
} return true;
case GrClip::kClipStack_ClipType: {
clipSpaceRTIBounds.offset(clip.origin());
GrReducedClip::ReduceClipStack(*clip.clipStack(),
clipSpaceRTIBounds,
&elements,
&genID,
&initialState,
&clipSpaceIBounds,
&requiresAA);
if (elements.isEmpty()) {
if (GrReducedClip::kAllIn_InitialState == initialState) {
if (clipSpaceIBounds == clipSpaceRTIBounds) {
this->setPipelineBuilderStencil(pipelineBuilder, ars);
return true;
}
} else {
return false;
}
}
} break;
}
// An element count of 4 was chosen because of the common pattern in Blink of:
// isect RR
// diff RR