| /* |
| * Copyright 2015 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef GrDrawPathBatch_DEFINED |
| #define GrDrawPathBatch_DEFINED |
| |
| #include "GrBatchFlushState.h" |
| #include "GrDrawBatch.h" |
| #include "GrGpu.h" |
| #include "GrPath.h" |
| #include "GrPathRendering.h" |
| #include "GrPathProcessor.h" |
| |
| #include "SkTLList.h" |
| |
| class GrDrawPathBatchBase : public GrDrawBatch { |
| public: |
| void getInvariantOutputColor(GrInitInvariantOutput* out) const override { |
| out->setKnownFourComponents(fColor); |
| } |
| |
| void getInvariantOutputCoverage(GrInitInvariantOutput* out) const override { |
| out->setKnownSingleComponent(0xff); |
| } |
| |
| void setStencilSettings(const GrStencilSettings& stencil) { fStencilSettings = stencil; } |
| |
| protected: |
| GrDrawPathBatchBase(uint32_t classID, const SkMatrix& viewMatrix, GrColor initialColor) |
| : INHERITED(classID) |
| , fViewMatrix(viewMatrix) |
| , fColor(initialColor) {} |
| |
| const GrStencilSettings& stencilSettings() const { return fStencilSettings; } |
| const GrPipelineOptimizations& opts() const { return fOpts; } |
| const SkMatrix& viewMatrix() const { return fViewMatrix; } |
| GrColor color() const { return fColor; } |
| |
| private: |
| void initBatchTracker(const GrPipelineOptimizations& opts) override { |
| opts.getOverrideColorIfSet(&fColor); |
| fOpts = opts; |
| } |
| |
| SkMatrix fViewMatrix; |
| GrColor fColor; |
| GrStencilSettings fStencilSettings; |
| GrPipelineOptimizations fOpts; |
| |
| typedef GrDrawBatch INHERITED; |
| }; |
| |
| class GrDrawPathBatch final : public GrDrawPathBatchBase { |
| public: |
| DEFINE_BATCH_CLASS_ID |
| |
| // This can't return a more abstract type because we install the stencil settings late :( |
| static GrDrawPathBatchBase* Create(const SkMatrix& viewMatrix, GrColor color, |
| const GrPath* path) { |
| return new GrDrawPathBatch(viewMatrix, color, path); |
| } |
| |
| const char* name() const override { return "DrawPath"; } |
| |
| SkString dumpInfo() const override; |
| |
| private: |
| GrDrawPathBatch(const SkMatrix& viewMatrix, GrColor color, const GrPath* path) |
| : INHERITED(ClassID(), viewMatrix, color) |
| , fPath(path) { |
| fBounds = path->getBounds(); |
| viewMatrix.mapRect(&fBounds); |
| } |
| |
| bool onCombineIfPossible(GrBatch* t, const GrCaps& caps) override { return false; } |
| |
| void onPrepare(GrBatchFlushState*) override {} |
| |
| void onDraw(GrBatchFlushState* state) override; |
| |
| GrPendingIOResource<const GrPath, kRead_GrIOType> fPath; |
| |
| typedef GrDrawPathBatchBase INHERITED; |
| }; |
| |
| /** |
| * This could be nested inside the batch class, but for now it must be declarable in a public |
| * header (GrDrawContext) |
| */ |
| class GrPathRangeDraw : public GrNonAtomicRef { |
| public: |
| typedef GrPathRendering::PathTransformType TransformType; |
| |
| static GrPathRangeDraw* Create(TransformType transformType, int reserveCnt) { |
| return new GrPathRangeDraw(transformType, reserveCnt); |
| } |
| |
| void append(uint16_t index, float transform[]) { |
| fTransforms.push_back_n(GrPathRendering::PathTransformSize(fTransformType), transform); |
| fIndices.push_back(index); |
| } |
| |
| int count() const { return fIndices.count(); } |
| |
| TransformType transformType() const { return fTransformType; } |
| |
| const float* transforms() const { return fTransforms.begin(); } |
| |
| const uint16_t* indices() const { return fIndices.begin(); } |
| |
| static bool CanMerge(const GrPathRangeDraw& a, const GrPathRangeDraw& b) { |
| return a.transformType() == b.transformType(); |
| } |
| |
| private: |
| GrPathRangeDraw(TransformType transformType, int reserveCnt) |
| : fTransformType(transformType) |
| , fIndices(reserveCnt) |
| , fTransforms(reserveCnt * GrPathRendering::PathTransformSize(transformType)) { |
| SkDEBUGCODE(fUsedInBatch = false;) |
| } |
| |
| // Reserve space for 64 paths where indices are 16 bit and transforms are translations. |
| static const int kIndexReserveCnt = 64; |
| static const int kTransformBufferReserveCnt = 2 * 64; |
| |
| GrPathRendering::PathTransformType fTransformType; |
| SkSTArray<kIndexReserveCnt, uint16_t, true> fIndices; |
| SkSTArray<kTransformBufferReserveCnt, float, true> fTransforms; |
| |
| // To ensure we don't reuse these across batches. |
| #ifdef SK_DEBUG |
| bool fUsedInBatch; |
| friend class GrDrawPathRangeBatch; |
| #endif |
| |
| typedef GrNonAtomicRef INHERITED; |
| }; |
| |
| // Template this if we decide to support index types other than 16bit |
| class GrDrawPathRangeBatch final : public GrDrawPathBatchBase { |
| public: |
| DEFINE_BATCH_CLASS_ID |
| |
| // This can't return a more abstract type because we install the stencil settings late :( |
| static GrDrawPathBatchBase* Create(const SkMatrix& viewMatrix, const SkMatrix& localMatrix, |
| GrColor color, GrPathRange* range, GrPathRangeDraw* draw) { |
| return new GrDrawPathRangeBatch(viewMatrix, localMatrix, color, range, draw); |
| } |
| |
| ~GrDrawPathRangeBatch() override; |
| |
| const char* name() const override { return "DrawPathRange"; } |
| |
| SkString dumpInfo() const override; |
| |
| private: |
| inline bool isWinding() const; |
| |
| GrDrawPathRangeBatch(const SkMatrix& viewMatrix, const SkMatrix& localMatrix, GrColor color, |
| GrPathRange* range, GrPathRangeDraw* draw); |
| |
| bool onCombineIfPossible(GrBatch* t, const GrCaps& caps) override; |
| |
| void onPrepare(GrBatchFlushState*) override {} |
| |
| void onDraw(GrBatchFlushState* state) override; |
| |
| typedef GrPendingIOResource<const GrPathRange, kRead_GrIOType> PendingPathRange; |
| typedef SkTLList<GrPathRangeDraw*> DrawList; |
| PendingPathRange fPathRange; |
| DrawList fDraws; |
| int fTotalPathCount; |
| SkMatrix fLocalMatrix; |
| |
| typedef GrDrawPathBatchBase INHERITED; |
| }; |
| |
| #endif |