/*

 * 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/SkColorSpace.h"

#include "include/core/SkImageInfo.h"

#include "include/core/SkTypes.h"

class SkDngImage;

class SkStream;

/*

 *

 * 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