1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef SkiaCanvasProxy_DEFINED 18 #define SkiaCanvasProxy_DEFINED 19 20 #include <SkCanvas.h> 21 #include <cutils/compiler.h> 22 23 #include "hwui/Canvas.h" 24 25 namespace android { 26 namespace uirenderer { 27 28 /** 29 * This class serves as a proxy between Skia's SkCanvas and Android Framework's 30 * Canvas. The class does not maintain any draw-related state and will pass 31 * through most requests directly to the Canvas provided in the constructor. 32 * 33 * Upon construction it is expected that the provided Canvas has already been 34 * prepared for recording and will continue to be in the recording state while 35 * this proxy class is being used. 36 * 37 * If filterHwuiCalls is true, the proxy silently ignores away draw calls that 38 * aren't supported by HWUI. 39 */ 40 class ANDROID_API SkiaCanvasProxy : public SkCanvas { 41 public: 42 explicit SkiaCanvasProxy(Canvas* canvas, bool filterHwuiCalls = false); ~SkiaCanvasProxy()43 virtual ~SkiaCanvasProxy() {} 44 45 protected: 46 virtual sk_sp<SkSurface> onNewSurface(const SkImageInfo&, const SkSurfaceProps&) override; 47 48 virtual void willSave() override; 49 virtual SaveLayerStrategy getSaveLayerStrategy(const SaveLayerRec&) override; 50 virtual void willRestore() override; 51 52 virtual void didConcat(const SkMatrix&) override; 53 virtual void didSetMatrix(const SkMatrix&) override; 54 55 virtual void onDrawPaint(const SkPaint& paint) override; 56 virtual void onDrawPoints(PointMode, size_t count, const SkPoint pts[], 57 const SkPaint&) override; 58 virtual void onDrawOval(const SkRect&, const SkPaint&) override; 59 virtual void onDrawRect(const SkRect&, const SkPaint&) override; 60 virtual void onDrawRRect(const SkRRect&, const SkPaint&) override; 61 virtual void onDrawPath(const SkPath& path, const SkPaint&) override; 62 virtual void onDrawArc(const SkRect&, SkScalar startAngle, SkScalar sweepAngle, bool useCenter, 63 const SkPaint&) override; 64 virtual void onDrawBitmap(const SkBitmap&, SkScalar left, SkScalar top, 65 const SkPaint*) override; 66 virtual void onDrawBitmapRect(const SkBitmap&, const SkRect* src, const SkRect& dst, 67 const SkPaint* paint, SrcRectConstraint) override; 68 virtual void onDrawBitmapNine(const SkBitmap& bitmap, const SkIRect& center, const SkRect& dst, 69 const SkPaint*) override; 70 virtual void onDrawImage(const SkImage*, SkScalar dx, SkScalar dy, const SkPaint*); 71 virtual void onDrawImageRect(const SkImage*, const SkRect*, const SkRect&, const SkPaint*, 72 SrcRectConstraint); 73 virtual void onDrawImageNine(const SkImage*, const SkIRect& center, const SkRect& dst, 74 const SkPaint*); 75 virtual void onDrawImageLattice(const SkImage*, const Lattice& lattice, const SkRect& dst, 76 const SkPaint*); 77 virtual void onDrawVerticesObject(const SkVertices*, SkBlendMode, const SkPaint&) override; 78 79 virtual void onDrawDRRect(const SkRRect&, const SkRRect&, const SkPaint&) override; 80 81 virtual void onDrawText(const void* text, size_t byteLength, SkScalar x, SkScalar y, 82 const SkPaint&) override; 83 virtual void onDrawPosText(const void* text, size_t byteLength, const SkPoint pos[], 84 const SkPaint&) override; 85 virtual void onDrawPosTextH(const void* text, size_t byteLength, const SkScalar xpos[], 86 SkScalar constY, const SkPaint&) override; 87 virtual void onDrawTextOnPath(const void* text, size_t byteLength, const SkPath& path, 88 const SkMatrix* matrix, const SkPaint&) override; 89 virtual void onDrawTextRSXform(const void* text, size_t byteLength, const SkRSXform[], 90 const SkRect* cullRect, const SkPaint& paint); 91 virtual void onDrawTextBlob(const SkTextBlob* blob, SkScalar x, SkScalar y, 92 const SkPaint& paint) override; 93 94 virtual void onDrawPatch(const SkPoint cubics[12], const SkColor colors[4], 95 const SkPoint texCoords[4], SkBlendMode, 96 const SkPaint& paint) override; 97 98 virtual void onClipRect(const SkRect&, SkClipOp, ClipEdgeStyle) override; 99 virtual void onClipRRect(const SkRRect&, SkClipOp, ClipEdgeStyle) override; 100 virtual void onClipPath(const SkPath&, SkClipOp, ClipEdgeStyle) override; 101 102 private: 103 Canvas* mCanvas; 104 bool mFilterHwuiCalls; 105 106 typedef SkCanvas INHERITED; 107 }; 108 109 }; // namespace uirenderer 110 }; // namespace android 111 112 #endif // SkiaCanvasProxy_DEFINED 113