src/gpu/graphite/Image_Base_Graphite.h

/*
 * Copyright 2023 Google LLC
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#ifndef skgpu_graphite_Image_Base_Graphite_DEFINED
#define skgpu_graphite_Image_Base_Graphite_DEFINED

#include "src/image/SkImage_Base.h"

#if SK_SUPPORT_GPU
#include "src/gpu/ganesh/GrSurfaceProxyView.h"
#endif

namespace skgpu::graphite {

class Context;
class Recorder;
class TextureProxy;

class Image_Base : public SkImage_Base {
public:
    ~Image_Base() override {}

    bool onReadPixels(GrDirectContext*,
                      const SkImageInfo& dstInfo,
                      void* dstPixels,
                      size_t dstRowBytes,
                      int srcX,
                      int srcY,
                      CachingHint) const override { return false; }

    bool isGraphiteBacked() const override { return true; }

    bool getROPixels(GrDirectContext*,
                     SkBitmap*,
                     CachingHint = kAllow_CachingHint) const override { return false; }

    sk_sp<SkImage> onMakeSubset(const SkIRect&, GrDirectContext*) const override;

    bool onIsValid(GrRecordingContext*) const override { return true; }

    sk_sp<SkImage> onMakeColorTypeAndColorSpace(SkColorType,
                                                sk_sp<SkColorSpace>,
                                                GrDirectContext*) const override;

    void onAsyncRescaleAndReadPixels(const SkImageInfo&,
                                     SkIRect srcRect,
                                     RescaleGamma,
                                     RescaleMode,
                                     ReadPixelsCallback,
                                     ReadPixelsContext) const override;

    void onAsyncRescaleAndReadPixelsYUV420(SkYUVColorSpace,
                                           sk_sp<SkColorSpace>,
                                           SkIRect srcRect,
                                           SkISize dstSize,
                                           RescaleGamma,
                                           RescaleMode,
                                           ReadPixelsCallback,
                                           ReadPixelsContext) const override;

protected:
    Image_Base(const SkImageInfo& info, uint32_t uniqueID)
        : SkImage_Base(info, uniqueID) {}

private:

#if SK_SUPPORT_GPU
    std::unique_ptr<GrFragmentProcessor> onAsFragmentProcessor(
            GrRecordingContext*,
            SkSamplingOptions,
            const SkTileMode[2],
            const SkMatrix&,
            const SkRect* subset,
            const SkRect* domain) const override;

    std::tuple<GrSurfaceProxyView, GrColorType> onAsView(
            GrRecordingContext*,
            GrMipmapped,
            GrImageTexGenPolicy policy) const override {
        return {};
    }
#endif
};

} // namespace skgpu::graphite

#endif // skgpu_graphite_Image_Base_Graphite_DEFINED