1 2 /* 3 * Copyright 2011 Google Inc. 4 * 5 * Use of this source code is governed by a BSD-style license that can be 6 * found in the LICENSE file. 7 */ 8 #ifndef SkPicturePlayback_DEFINED 9 #define SkPicturePlayback_DEFINED 10 11 #include "SkPicture.h" 12 #include "SkReader32.h" 13 14 #include "SkBitmap.h" 15 #include "SkMatrix.h" 16 #include "SkPaint.h" 17 #include "SkPath.h" 18 #include "SkPathHeap.h" 19 #include "SkRegion.h" 20 #include "SkPictureFlat.h" 21 22 #ifdef SK_BUILD_FOR_ANDROID 23 #include "SkThread.h" 24 #endif 25 26 class SkPictureRecord; 27 class SkStream; 28 class SkWStream; 29 30 class SkPicturePlayback { 31 public: 32 SkPicturePlayback(); 33 SkPicturePlayback(const SkPicturePlayback& src); 34 explicit SkPicturePlayback(const SkPictureRecord& record); 35 explicit SkPicturePlayback(SkStream*, uint32_t pictureVersion = PICTURE_VERSION_JB); 36 37 virtual ~SkPicturePlayback(); 38 39 void draw(SkCanvas& canvas); 40 41 void serialize(SkWStream*) const; 42 43 void dumpSize() const; 44 45 // Can be called in the middle of playback (the draw() call). WIll abort the 46 // drawing and return from draw() after the "current" op code is done 47 void abort(); 48 49 private: 50 51 class TextContainer { 52 public: length()53 size_t length() { return fByteLength; } text()54 const void* text() { return (const void*) fText; } 55 size_t fByteLength; 56 const char* fText; 57 }; 58 getBitmap()59 const SkBitmap& getBitmap() { 60 int index = getInt(); 61 SkASSERT(index > 0); 62 return fBitmaps[index - 1]; 63 } 64 getIndex()65 int getIndex() { return fReader.readInt(); } getInt()66 int getInt() { return fReader.readInt(); } 67 getMatrix()68 const SkMatrix* getMatrix() { 69 int index = getInt(); 70 if (index == 0) { 71 return NULL; 72 } 73 SkASSERT(index > 0 && index <= fMatrixCount); 74 return &fMatrices[index - 1]; 75 } 76 getPath()77 const SkPath& getPath() { 78 return (*fPathHeap)[getInt() - 1]; 79 } 80 getPicture()81 SkPicture& getPicture() { 82 int index = getInt(); 83 SkASSERT(index > 0 && index <= fPictureCount); 84 return *fPictureRefs[index - 1]; 85 } 86 getPaint()87 const SkPaint* getPaint() { 88 int index = getInt(); 89 if (index == 0) { 90 return NULL; 91 } 92 SkASSERT(index > 0 && index <= fPaintCount); 93 return &fPaints[index - 1]; 94 } 95 getRectPtr()96 const SkRect* getRectPtr() { 97 if (fReader.readBool()) { 98 return &fReader.skipT<SkRect>(); 99 } else { 100 return NULL; 101 } 102 } 103 getIRectPtr()104 const SkIRect* getIRectPtr() { 105 if (fReader.readBool()) { 106 return &fReader.skipT<SkIRect>(); 107 } else { 108 return NULL; 109 } 110 } 111 getRegion()112 const SkRegion& getRegion() { 113 int index = getInt(); 114 SkASSERT(index > 0); 115 return fRegions[index - 1]; 116 } 117 getScalar()118 SkScalar getScalar() { return fReader.readScalar(); } 119 getText(TextContainer * text)120 void getText(TextContainer* text) { 121 size_t length = text->fByteLength = getInt(); 122 text->fText = (const char*)fReader.skip(length); 123 } 124 125 void init(); 126 127 #ifdef SK_DEBUG_SIZE 128 public: 129 int size(size_t* sizePtr); 130 int bitmaps(size_t* size); 131 int paints(size_t* size); 132 int paths(size_t* size); 133 int regions(size_t* size); 134 #endif 135 136 #ifdef SK_DEBUG_DUMP 137 private: 138 void dumpBitmap(const SkBitmap& bitmap) const; 139 void dumpMatrix(const SkMatrix& matrix) const; 140 void dumpPaint(const SkPaint& paint) const; 141 void dumpPath(const SkPath& path) const; 142 void dumpPicture(const SkPicture& picture) const; 143 void dumpRegion(const SkRegion& region) const; 144 int dumpDrawType(char* bufferPtr, char* buffer, DrawType drawType); 145 int dumpInt(char* bufferPtr, char* buffer, char* name); 146 int dumpRect(char* bufferPtr, char* buffer, char* name); 147 int dumpPoint(char* bufferPtr, char* buffer, char* name); 148 void dumpPointArray(char** bufferPtrPtr, char* buffer, int count); 149 int dumpPtr(char* bufferPtr, char* buffer, char* name, void* ptr); 150 int dumpRectPtr(char* bufferPtr, char* buffer, char* name); 151 int dumpScalar(char* bufferPtr, char* buffer, char* name); 152 void dumpText(char** bufferPtrPtr, char* buffer); 153 void dumpStream(); 154 155 public: 156 void dump() const; 157 #endif 158 159 private: 160 SkPathHeap* fPathHeap; // reference counted 161 SkBitmap* fBitmaps; 162 int fBitmapCount; 163 SkMatrix* fMatrices; 164 int fMatrixCount; 165 SkPaint* fPaints; 166 int fPaintCount; 167 SkRegion* fRegions; 168 int fRegionCount; 169 mutable SkFlattenableReadBuffer fReader; 170 171 SkPicture** fPictureRefs; 172 int fPictureCount; 173 174 SkRefCntPlayback fRCPlayback; 175 SkTypefacePlayback fTFPlayback; 176 SkFactoryPlayback* fFactoryPlayback; 177 #ifdef SK_BUILD_FOR_ANDROID 178 SkMutex fDrawMutex; 179 #endif 180 }; 181 182 #endif 183