| /* |
| * Copyright 2016 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef SkPipeCanvas_DEFINED |
| #define SkPipeCanvas_DEFINED |
| |
| #include "SkCanvas.h" |
| #include "SkDeduper.h" |
| #include "SkImage.h" |
| #include "SkPipe.h" |
| #include "SkTypeface.h" |
| #include "SkWriteBuffer.h" |
| |
| class SkPipeCanvas; |
| class SkPipeWriter; |
| |
| template <typename T> class SkTIndexSet { |
| public: |
| void reset() { fArray.reset(); } |
| |
| // returns the found index or 0 |
| int find(const T& key) const { |
| const Rec* stop = fArray.end(); |
| for (const Rec* curr = fArray.begin(); curr < stop; ++curr) { |
| if (key == curr->fKey) { |
| return curr->fIndex; |
| } |
| } |
| return 0; |
| } |
| |
| // returns the new index |
| int add(const T& key) { |
| Rec* rec = fArray.append(); |
| rec->fKey = key; |
| rec->fIndex = fNextIndex++; |
| return rec->fIndex; |
| } |
| |
| private: |
| struct Rec { |
| T fKey; |
| int fIndex; |
| }; |
| |
| SkTDArray<Rec> fArray; |
| int fNextIndex = 1; |
| }; |
| |
| class SkPipeDeduper : public SkDeduper { |
| public: |
| void resetCaches() { |
| fImages.reset(); |
| fPictures.reset(); |
| fTypefaces.reset(); |
| fFactories.reset(); |
| } |
| |
| void setCanvas(SkPipeCanvas* canvas) { fPipeCanvas = canvas; } |
| void setStream(SkWStream* stream) { fStream = stream; } |
| void setTypefaceSerializer(SkTypefaceSerializer* tfs) { fTFSerializer = tfs; } |
| void setImageSerializer(SkImageSerializer* ims) { fIMSerializer = ims; } |
| |
| // returns 0 if not found |
| int findImage(SkImage* image) const { return fImages.find(image->uniqueID()); } |
| int findPicture(SkPicture* picture) const { return fPictures.find(picture->uniqueID()); } |
| |
| int findOrDefineImage(SkImage*) override; |
| int findOrDefinePicture(SkPicture*) override; |
| int findOrDefineTypeface(SkTypeface*) override; |
| int findOrDefineFactory(SkFlattenable*) override; |
| |
| private: |
| SkPipeCanvas* fPipeCanvas = nullptr; |
| SkWStream* fStream = nullptr; |
| |
| SkTypefaceSerializer* fTFSerializer = nullptr; |
| SkImageSerializer* fIMSerializer = nullptr; |
| |
| // All our keys (at the moment) are 32bit uniqueIDs |
| SkTIndexSet<uint32_t> fImages; |
| SkTIndexSet<uint32_t> fPictures; |
| SkTIndexSet<uint32_t> fTypefaces; |
| SkTIndexSet<SkFlattenable::Factory> fFactories; |
| }; |
| |
| |
| class SkPipeCanvas : public SkCanvas { |
| public: |
| SkPipeCanvas(const SkRect& cull, SkPipeDeduper*, SkWStream*); |
| ~SkPipeCanvas() override; |
| |
| protected: |
| void willSave() override; |
| SaveLayerStrategy getSaveLayerStrategy(const SaveLayerRec&) override; |
| void willRestore() override; |
| |
| void didConcat(const SkMatrix&) override; |
| void didSetMatrix(const SkMatrix&) override; |
| |
| void onDrawArc(const SkRect&, SkScalar startAngle, SkScalar sweepAngle, bool useCenter, |
| const SkPaint&) override; |
| void onDrawAtlas(const SkImage*, const SkRSXform[], const SkRect[], const SkColor[], |
| int count, SkBlendMode, const SkRect* cull, const SkPaint*) override; |
| void onDrawDRRect(const SkRRect&, const SkRRect&, const SkPaint&) override; |
| void onDrawText(const void* text, size_t byteLength, SkScalar x, SkScalar y, |
| const SkPaint&) override; |
| void onDrawPosText(const void* text, size_t byteLength, const SkPoint pos[], |
| const SkPaint&) override; |
| void onDrawPosTextH(const void* text, size_t byteLength, const SkScalar xpos[], |
| SkScalar constY, const SkPaint&) override; |
| void onDrawTextOnPath(const void* text, size_t byteLength, const SkPath&, const SkMatrix*, |
| const SkPaint&) override; |
| void onDrawTextBlob(const SkTextBlob* blob, SkScalar x, SkScalar y, const SkPaint&) override; |
| void onDrawTextRSXform(const void* text, size_t byteLength, const SkRSXform xform[], |
| const SkRect* cull, const SkPaint& paint) override; |
| void onDrawPatch(const SkPoint cubics[12], const SkColor colors[4], const SkPoint texCoords[4], |
| SkBlendMode, const SkPaint&) override; |
| |
| void onDrawPaint(const SkPaint&) override; |
| void onDrawPoints(PointMode, size_t count, const SkPoint pts[], const SkPaint&) override; |
| void onDrawRect(const SkRect&, const SkPaint&) override; |
| void onDrawOval(const SkRect&, const SkPaint&) override; |
| void onDrawRegion(const SkRegion&, const SkPaint&) override; |
| void onDrawRRect(const SkRRect&, const SkPaint&) override; |
| void onDrawPath(const SkPath&, const SkPaint&) override; |
| |
| void onDrawImage(const SkImage*, SkScalar left, SkScalar top, const SkPaint*) override; |
| void onDrawImageRect(const SkImage*, const SkRect* src, const SkRect& dst, |
| const SkPaint*, SrcRectConstraint) override; |
| void onDrawImageNine(const SkImage*, const SkIRect& center, const SkRect& dst, |
| const SkPaint*) override; |
| void onDrawImageLattice(const SkImage*, const Lattice& lattice, const SkRect& dst, |
| const SkPaint*) override; |
| void onDrawVertices(VertexMode vmode, int vertexCount, |
| const SkPoint vertices[], const SkPoint texs[], |
| const SkColor colors[], SkBlendMode, |
| const uint16_t indices[], int indexCount, |
| const SkPaint&) override; |
| |
| void onClipRect(const SkRect&, ClipOp, ClipEdgeStyle) override; |
| void onClipRRect(const SkRRect&, ClipOp, ClipEdgeStyle) override; |
| void onClipPath(const SkPath&, ClipOp, ClipEdgeStyle) override; |
| void onClipRegion(const SkRegion&, ClipOp) override; |
| |
| void onDrawPicture(const SkPicture*, const SkMatrix*, const SkPaint*) override; |
| void onDrawAnnotation(const SkRect&, const char[], SkData*) override; |
| |
| // These we turn into images |
| void onDrawBitmap(const SkBitmap&, SkScalar left, SkScalar top, const SkPaint*) override; |
| void onDrawBitmapRect(const SkBitmap&, const SkRect* src, const SkRect& dst, const SkPaint*, |
| SrcRectConstraint) override; |
| void onDrawBitmapNine(const SkBitmap&, const SkIRect& center, const SkRect& dst, |
| const SkPaint*) override; |
| void onDrawBitmapLattice(const SkBitmap&, const Lattice& lattice, const SkRect& dst, |
| const SkPaint*) override; |
| |
| private: |
| SkPipeDeduper* fDeduper; |
| SkWStream* fStream; |
| |
| friend class SkPipeWriter; |
| |
| typedef SkCanvas INHERITED; |
| }; |
| |
| |
| #endif |