| /* |
| * Copyright 2011 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef SkPictureData_DEFINED |
| #define SkPictureData_DEFINED |
| |
| #include "SkBitmap.h" |
| #include "SkPicture.h" |
| #include "SkPictureContentInfo.h" |
| #include "SkPictureFlat.h" |
| |
| class SkData; |
| class SkPictureRecord; |
| class SkPixelSerializer; |
| class SkReader32; |
| class SkStream; |
| class SkWStream; |
| class SkBBoxHierarchy; |
| class SkMatrix; |
| class SkPaint; |
| class SkPath; |
| class SkReadBuffer; |
| class SkTextBlob; |
| |
| struct SkPictInfo { |
| enum Flags { |
| kCrossProcess_Flag = 1 << 0, |
| kScalarIsFloat_Flag = 1 << 1, |
| kPtrIs64Bit_Flag = 1 << 2, |
| }; |
| |
| char fMagic[8]; |
| uint32_t fVersion; |
| SkRect fCullRect; |
| uint32_t fFlags; |
| }; |
| |
| #define SK_PICT_READER_TAG SkSetFourByteTag('r', 'e', 'a', 'd') |
| #define SK_PICT_FACTORY_TAG SkSetFourByteTag('f', 'a', 'c', 't') |
| #define SK_PICT_TYPEFACE_TAG SkSetFourByteTag('t', 'p', 'f', 'c') |
| #define SK_PICT_PICTURE_TAG SkSetFourByteTag('p', 'c', 't', 'r') |
| |
| // This tag specifies the size of the ReadBuffer, needed for the following tags |
| #define SK_PICT_BUFFER_SIZE_TAG SkSetFourByteTag('a', 'r', 'a', 'y') |
| // these are all inside the ARRAYS tag |
| #define SK_PICT_BITMAP_BUFFER_TAG SkSetFourByteTag('b', 't', 'm', 'p') |
| #define SK_PICT_PAINT_BUFFER_TAG SkSetFourByteTag('p', 'n', 't', ' ') |
| #define SK_PICT_PATH_BUFFER_TAG SkSetFourByteTag('p', 't', 'h', ' ') |
| #define SK_PICT_TEXTBLOB_BUFFER_TAG SkSetFourByteTag('b', 'l', 'o', 'b') |
| #define SK_PICT_IMAGE_BUFFER_TAG SkSetFourByteTag('i', 'm', 'a', 'g') |
| |
| // Always write this guy last (with no length field afterwards) |
| #define SK_PICT_EOF_TAG SkSetFourByteTag('e', 'o', 'f', ' ') |
| |
| class SkPictureData { |
| public: |
| SkPictureData(const SkPictureRecord& record, const SkPictInfo&, bool deepCopyOps); |
| // Does not affect ownership of SkStream. |
| static SkPictureData* CreateFromStream(SkStream*, |
| const SkPictInfo&, |
| SkPicture::InstallPixelRefProc); |
| static SkPictureData* CreateFromBuffer(SkReadBuffer&, const SkPictInfo&); |
| |
| virtual ~SkPictureData(); |
| |
| void serialize(SkWStream*, SkPixelSerializer*) const; |
| void flatten(SkWriteBuffer&) const; |
| |
| bool containsBitmaps() const; |
| |
| bool hasText() const { return fContentInfo.hasText(); } |
| |
| int opCount() const { return fContentInfo.numOperations(); } |
| |
| const SkData* opData() const { return fOpData; } |
| |
| protected: |
| explicit SkPictureData(const SkPictInfo& info); |
| |
| // Does not affect ownership of SkStream. |
| bool parseStream(SkStream*, SkPicture::InstallPixelRefProc); |
| bool parseBuffer(SkReadBuffer& buffer); |
| |
| public: |
| const SkBitmap& getBitmap(SkReader32* reader) const { |
| const int index = reader->readInt(); |
| return fBitmaps[index]; |
| } |
| |
| const SkImage* getImage(SkReader32* reader) const { |
| const int index = reader->readInt(); |
| return fImageRefs[index]; |
| } |
| |
| const SkPath& getPath(SkReader32* reader) const { |
| int index = reader->readInt() - 1; |
| return fPaths[index]; |
| } |
| |
| const SkPicture* getPicture(SkReader32* reader) const { |
| int index = reader->readInt(); |
| SkASSERT(index > 0 && index <= fPictureCount); |
| return fPictureRefs[index - 1]; |
| } |
| |
| const SkPaint* getPaint(SkReader32* reader) const { |
| int index = reader->readInt(); |
| if (index == 0) { |
| return NULL; |
| } |
| return &fPaints[index - 1]; |
| } |
| |
| const SkTextBlob* getTextBlob(SkReader32* reader) const { |
| int index = reader->readInt(); |
| SkASSERT(index > 0 && index <= fTextBlobCount); |
| return fTextBlobRefs[index - 1]; |
| } |
| |
| #if SK_SUPPORT_GPU |
| /** |
| * sampleCount is the number of samples-per-pixel or zero if non-MSAA. |
| * It is defaulted to be zero. |
| */ |
| bool suitableForGpuRasterization(GrContext* context, const char **reason, |
| int sampleCount = 0) const; |
| |
| /** |
| * Calls getRecommendedSampleCount with GrPixelConfig and dpi to calculate sampleCount |
| * and then calls the above version of suitableForGpuRasterization |
| */ |
| bool suitableForGpuRasterization(GrContext* context, const char **reason, |
| GrPixelConfig config, SkScalar dpi) const; |
| |
| bool suitableForLayerOptimization() const; |
| #endif |
| |
| private: |
| void init(); |
| |
| // these help us with reading/writing |
| // Does not affect ownership of SkStream. |
| bool parseStreamTag(SkStream*, uint32_t tag, uint32_t size, SkPicture::InstallPixelRefProc); |
| bool parseBufferTag(SkReadBuffer&, uint32_t tag, uint32_t size); |
| void flattenToBuffer(SkWriteBuffer&) const; |
| |
| // Only used by getBitmap() if the passed in index is SkBitmapHeap::INVALID_SLOT. This empty |
| // bitmap allows playback to draw nothing and move on. |
| SkBitmap fBadBitmap; |
| |
| SkTArray<SkBitmap> fBitmaps; |
| SkTArray<SkPaint> fPaints; |
| SkTArray<SkPath> fPaths; |
| |
| SkData* fOpData; // opcodes and parameters |
| |
| const SkPicture** fPictureRefs; |
| int fPictureCount; |
| const SkTextBlob** fTextBlobRefs; |
| int fTextBlobCount; |
| const SkImage** fImageRefs; |
| int fImageCount; |
| |
| SkPictureContentInfo fContentInfo; |
| |
| SkTypefacePlayback fTFPlayback; |
| SkFactoryPlayback* fFactoryPlayback; |
| |
| const SkPictInfo fInfo; |
| |
| static void WriteFactories(SkWStream* stream, const SkFactorySet& rec); |
| static void WriteTypefaces(SkWStream* stream, const SkRefCntSet& rec); |
| |
| void initForPlayback() const; |
| }; |
| |
| #endif |