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/*
* 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 SkOrderedWriteBuffer_DEFINED
#define SkOrderedWriteBuffer_DEFINED
#include "SkFlattenableBuffers.h"
#include "SkRefCnt.h"
#include "SkBitmapHeap.h"
#include "SkPath.h"
#include "SkPicture.h"
#include "SkWriter32.h"
class SkBitmap;
class SkFlattenable;
class SkFactorySet;
class SkNamedFactorySet;
class SkRefCntSet;
class SkOrderedWriteBuffer : public SkFlattenableWriteBuffer {
public:
SkOrderedWriteBuffer(size_t minSize);
SkOrderedWriteBuffer(size_t minSize, void* initialStorage, size_t storageSize);
virtual ~SkOrderedWriteBuffer();
virtual bool isOrderedBinaryBuffer() SK_OVERRIDE { return true; }
virtual SkOrderedWriteBuffer* getOrderedBinaryBuffer() SK_OVERRIDE { return this; }
SkWriter32* getWriter32() { return &fWriter; }
void reset(void* storage, size_t storageSize) { fWriter.reset(storage, storageSize); }
// Returns true if we've written only into the storage passed into constructor or reset.
// (You may be able to use this to avoid a call to writeToMemory.)
bool wroteOnlyToStorage() const { return fWriter.wroteOnlyToStorage(); }
void writeToMemory(void* dst) { fWriter.flatten(dst); }
uint32_t* reserve(size_t size) { return fWriter.reserve(size); }
uint32_t bytesWritten() const { return fWriter.bytesWritten(); }
// Deprecated. Please call bytesWritten instead. TODO(mtklein): clean up
uint32_t size() const { return this->bytesWritten(); }
virtual void writeByteArray(const void* data, size_t size) SK_OVERRIDE;
virtual void writeBool(bool value) SK_OVERRIDE;
virtual void writeFixed(SkFixed value) SK_OVERRIDE;
virtual void writeScalar(SkScalar value) SK_OVERRIDE;
virtual void writeScalarArray(const SkScalar* value, uint32_t count) SK_OVERRIDE;
virtual void writeInt(int32_t value) SK_OVERRIDE;
virtual void writeIntArray(const int32_t* value, uint32_t count) SK_OVERRIDE;
virtual void writeUInt(uint32_t value) SK_OVERRIDE;
virtual void write32(int32_t value) SK_OVERRIDE;
virtual void writeString(const char* value) SK_OVERRIDE;
virtual void writeEncodedString(const void* value, size_t byteLength,
SkPaint::TextEncoding encoding) SK_OVERRIDE;
virtual void writeFlattenable(SkFlattenable* flattenable) SK_OVERRIDE;
virtual void writeColor(const SkColor& color) SK_OVERRIDE;
virtual void writeColorArray(const SkColor* color, uint32_t count) SK_OVERRIDE;
virtual void writePoint(const SkPoint& point) SK_OVERRIDE;
virtual void writePointArray(const SkPoint* point, uint32_t count) SK_OVERRIDE;
virtual void writeMatrix(const SkMatrix& matrix) SK_OVERRIDE;
virtual void writeIRect(const SkIRect& rect)SK_OVERRIDE;
virtual void writeRect(const SkRect& rect) SK_OVERRIDE;
virtual void writeRegion(const SkRegion& region) SK_OVERRIDE;
virtual void writePath(const SkPath& path) SK_OVERRIDE;
virtual size_t writeStream(SkStream* stream, size_t length) SK_OVERRIDE;
virtual void writeBitmap(const SkBitmap& bitmap) SK_OVERRIDE;
virtual void writeTypeface(SkTypeface* typeface) SK_OVERRIDE;
virtual bool writeToStream(SkWStream*) SK_OVERRIDE;
SkFactorySet* setFactoryRecorder(SkFactorySet*);
SkNamedFactorySet* setNamedFactoryRecorder(SkNamedFactorySet*);
SkRefCntSet* getTypefaceRecorder() const { return fTFSet; }
SkRefCntSet* setTypefaceRecorder(SkRefCntSet*);
/**
* Set an SkBitmapHeap to store bitmaps rather than flattening.
*
* Incompatible with an EncodeBitmap function. If an EncodeBitmap function is set, setting an
* SkBitmapHeap will set the function to NULL in release mode and crash in debug.
*/
void setBitmapHeap(SkBitmapHeap*);
/**
* Provide a function to encode an SkBitmap to an SkData. writeBitmap will attempt to use
* bitmapEncoder to store the SkBitmap. If the reader does not provide a function to decode, it
* will not be able to restore SkBitmaps, but will still be able to read the rest of the stream.
* bitmapEncoder will never be called with a NULL pixelRefOffset.
*
* Incompatible with the SkBitmapHeap. If an encoder is set fBitmapHeap will be set to NULL in
* release and crash in debug.
*/
void setBitmapEncoder(SkPicture::EncodeBitmap bitmapEncoder);
private:
SkFactorySet* fFactorySet;
SkNamedFactorySet* fNamedFactorySet;
SkWriter32 fWriter;
SkBitmapHeap* fBitmapHeap;
SkRefCntSet* fTFSet;
SkPicture::EncodeBitmap fBitmapEncoder;
typedef SkFlattenableWriteBuffer INHERITED;
};
#endif // SkOrderedWriteBuffer_DEFINED
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