/*
|
* Copyright 2011 Google Inc.
|
*
|
* Use of this source code is governed by a BSD-style license that can be
|
* found in the LICENSE file.
|
*/
|
|
#include "GrPathRenderer.h"
|
#include "GrCaps.h"
|
#include "GrContextPriv.h"
|
#include "GrPaint.h"
|
#include "GrRenderTargetContext.h"
|
#include "GrShape.h"
|
#include "GrUserStencilSettings.h"
|
#include "SkDrawProcs.h"
|
|
#ifdef SK_DEBUG
|
void GrPathRenderer::StencilPathArgs::validate() const {
|
SkASSERT(fContext);
|
SkASSERT(fRenderTargetContext);
|
SkASSERT(fClipConservativeBounds);
|
SkASSERT(fViewMatrix);
|
SkASSERT(fShape);
|
SkASSERT(fShape->style().isSimpleFill());
|
SkASSERT(GrAAType::kCoverage != fAAType);
|
SkPath path;
|
fShape->asPath(&path);
|
SkASSERT(!path.isInverseFillType());
|
}
|
#endif
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
GrPathRenderer::GrPathRenderer() {}
|
|
GrPathRenderer::StencilSupport GrPathRenderer::getStencilSupport(const GrShape& shape) const {
|
SkDEBUGCODE(SkPath path;)
|
SkDEBUGCODE(shape.asPath(&path);)
|
SkASSERT(shape.style().isSimpleFill());
|
SkASSERT(!path.isInverseFillType());
|
return this->onGetStencilSupport(shape);
|
}
|
|
bool GrPathRenderer::drawPath(const DrawPathArgs& args) {
|
#ifdef SK_DEBUG
|
args.validate();
|
CanDrawPathArgs canArgs;
|
canArgs.fCaps = args.fContext->contextPriv().caps();
|
canArgs.fClipConservativeBounds = args.fClipConservativeBounds;
|
canArgs.fViewMatrix = args.fViewMatrix;
|
canArgs.fShape = args.fShape;
|
canArgs.fAAType = args.fAAType;
|
canArgs.fTargetIsWrappedVkSecondaryCB = args.fRenderTargetContext->wrapsVkSecondaryCB();
|
canArgs.validate();
|
|
canArgs.fHasUserStencilSettings = !args.fUserStencilSettings->isUnused();
|
SkASSERT(!(canArgs.fAAType == GrAAType::kMSAA &&
|
GrFSAAType::kUnifiedMSAA != args.fRenderTargetContext->fsaaType()));
|
SkASSERT(!(canArgs.fAAType == GrAAType::kMixedSamples &&
|
GrFSAAType::kMixedSamples != args.fRenderTargetContext->fsaaType()));
|
SkASSERT(CanDrawPath::kNo != this->canDrawPath(canArgs));
|
if (!args.fUserStencilSettings->isUnused()) {
|
SkPath path;
|
args.fShape->asPath(&path);
|
SkASSERT(args.fShape->style().isSimpleFill());
|
SkASSERT(kNoRestriction_StencilSupport == this->getStencilSupport(*args.fShape));
|
}
|
#endif
|
return this->onDrawPath(args);
|
}
|
|
bool GrPathRenderer::IsStrokeHairlineOrEquivalent(const GrStyle& style, const SkMatrix& matrix,
|
SkScalar* outCoverage) {
|
if (style.pathEffect()) {
|
return false;
|
}
|
const SkStrokeRec& stroke = style.strokeRec();
|
if (stroke.isHairlineStyle()) {
|
if (outCoverage) {
|
*outCoverage = SK_Scalar1;
|
}
|
return true;
|
}
|
return stroke.getStyle() == SkStrokeRec::kStroke_Style &&
|
SkDrawTreatAAStrokeAsHairline(stroke.getWidth(), matrix, outCoverage);
|
}
|
|
|
void GrPathRenderer::GetPathDevBounds(const SkPath& path,
|
int devW, int devH,
|
const SkMatrix& matrix,
|
SkRect* bounds) {
|
if (path.isInverseFillType()) {
|
*bounds = SkRect::MakeWH(SkIntToScalar(devW), SkIntToScalar(devH));
|
return;
|
}
|
*bounds = path.getBounds();
|
matrix.mapRect(bounds);
|
}
|
|
void GrPathRenderer::onStencilPath(const StencilPathArgs& args) {
|
static constexpr GrUserStencilSettings kIncrementStencil(
|
GrUserStencilSettings::StaticInit<
|
0xffff,
|
GrUserStencilTest::kAlways,
|
0xffff,
|
GrUserStencilOp::kReplace,
|
GrUserStencilOp::kReplace,
|
0xffff>()
|
);
|
|
GrPaint paint;
|
DrawPathArgs drawArgs{args.fContext,
|
std::move(paint),
|
&kIncrementStencil,
|
args.fRenderTargetContext,
|
nullptr, // clip
|
args.fClipConservativeBounds,
|
args.fViewMatrix,
|
args.fShape,
|
args.fAAType,
|
false};
|
this->drawPath(drawArgs);
|
}
|
