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/*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkRawCodec_DEFINED
#define SkRawCodec_DEFINED
#include "include/codec/SkCodec.h"
#include "include/core/SkEncodedImageFormat.h"
#include "include/core/SkSize.h"
#include "include/core/SkTypes.h"
#include <cstddef>
#include <memory>
class SkDngImage;
class SkStream;
struct SkImageInfo;
/*
*
* This class implements the decoding for RAW images
*
*/
class SkRawCodec : public SkCodec {
public:
/*
* Creates a RAW decoder
* Takes ownership of the stream
*/
static std::unique_ptr<SkCodec> MakeFromStream(std::unique_ptr<SkStream>, Result*);
~SkRawCodec() override;
protected:
Result onGetPixels(const SkImageInfo& dstInfo, void* dst, size_t dstRowBytes, const Options&,
int*) override;
SkEncodedImageFormat onGetEncodedFormat() const override {
return SkEncodedImageFormat::kDNG;
}
SkISize onGetScaledDimensions(float desiredScale) const override;
bool onDimensionsSupported(const SkISize&) override;
// SkCodec only applies the colorXform if it's necessary for color space
// conversion. SkRawCodec will always convert, so tell SkCodec not to.
bool usesColorXform() const override { return false; }
private:
/*
* Creates an instance of the decoder
* Called only by NewFromStream, takes ownership of dngImage.
*/
SkRawCodec(SkDngImage* dngImage);
std::unique_ptr<SkDngImage> fDngImage;
using INHERITED = SkCodec;
};
#endif