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 <cutils/compiler.h> 21 #include <SkCanvas.h> 22 23 #include "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 SkiaCanvasProxy(Canvas* canvas, bool filterHwuiCalls = false); 43 virtual ~SkiaCanvasProxy() {} 44 45 protected: 46 47 virtual SkSurface* onNewSurface(const SkImageInfo&, const SkSurfaceProps&) override; 48 49 virtual void willSave() override; 50 virtual SaveLayerStrategy willSaveLayer(const SkRect*, const SkPaint*, SaveFlags) override; 51 virtual void willRestore() override; 52 53 virtual void didConcat(const SkMatrix&) override; 54 virtual void didSetMatrix(const SkMatrix&) override; 55 56 virtual void onDrawPaint(const SkPaint& paint) override; 57 virtual void onDrawPoints(PointMode, size_t count, const SkPoint pts[], 58 const SkPaint&) override; 59 virtual void onDrawOval(const SkRect&, const SkPaint&) override; 60 virtual void onDrawRect(const SkRect&, const SkPaint&) override; 61 virtual void onDrawRRect(const SkRRect&, const SkPaint&) override; 62 virtual void onDrawPath(const SkPath& path, const SkPaint&) override; 63 virtual void onDrawBitmap(const SkBitmap&, SkScalar left, SkScalar top, 64 const SkPaint*) override; 65 virtual void onDrawBitmapRect(const SkBitmap&, const SkRect* src, const SkRect& dst, 66 const SkPaint* paint, DrawBitmapRectFlags flags) override; 67 virtual void onDrawBitmapNine(const SkBitmap& bitmap, const SkIRect& center, 68 const SkRect& dst, const SkPaint*) override; 69 virtual void onDrawSprite(const SkBitmap&, int left, int top, 70 const SkPaint*) override; 71 virtual void onDrawVertices(VertexMode, int vertexCount, const SkPoint vertices[], 72 const SkPoint texs[], const SkColor colors[], SkXfermode*, 73 const uint16_t indices[], int indexCount, 74 const SkPaint&) override; 75 76 virtual void onDrawDRRect(const SkRRect&, const SkRRect&, const SkPaint&) override; 77 78 virtual void onDrawText(const void* text, size_t byteLength, SkScalar x, SkScalar y, 79 const SkPaint&) override; 80 virtual void onDrawPosText(const void* text, size_t byteLength, const SkPoint pos[], 81 const SkPaint&) override; 82 virtual void onDrawPosTextH(const void* text, size_t byteLength, const SkScalar xpos[], 83 SkScalar constY, const SkPaint&) override; 84 virtual void onDrawTextOnPath(const void* text, size_t byteLength, const SkPath& path, 85 const SkMatrix* matrix, const SkPaint&) override; 86 virtual void onDrawTextBlob(const SkTextBlob* blob, SkScalar x, SkScalar y, 87 const SkPaint& paint) override; 88 89 virtual void onDrawPatch(const SkPoint cubics[12], const SkColor colors[4], 90 const SkPoint texCoords[4], SkXfermode* xmode, 91 const SkPaint& paint) override; 92 93 virtual void onClipRect(const SkRect&, SkRegion::Op, ClipEdgeStyle) override; 94 virtual void onClipRRect(const SkRRect&, SkRegion::Op, ClipEdgeStyle) override; 95 virtual void onClipPath(const SkPath&, SkRegion::Op, ClipEdgeStyle) override; 96 virtual void onClipRegion(const SkRegion&, SkRegion::Op) override; 97 98 private: 99 Canvas* mCanvas; 100 bool mFilterHwuiCalls; 101 102 typedef SkCanvas INHERITED; 103 }; 104 105 }; // namespace uirenderer 106 }; // namespace android 107 108 #endif // SkiaCanvasProxy_DEFINED 109
