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/*
* 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 GrExternalTextureGenerator_DEFINED
#define GrExternalTextureGenerator_DEFINED
#include "include/core/SkRefCnt.h"
#include "include/gpu/ganesh/GrBackendSurface.h"
#include "include/private/base/SkAPI.h"
#include "include/private/gpu/ganesh/GrTextureGenerator.h"
#include <memory>
class GrRecordingContext;
class GrSurfaceProxyView;
class SkImage;
enum class GrImageTexGenPolicy : int;
namespace skgpu { enum class Mipmapped : bool; }
struct SkImageInfo;
class GrExternalTexture {
public:
virtual ~GrExternalTexture() = default;
virtual GrBackendTexture getBackendTexture() = 0;
virtual void dispose() = 0;
};
class SK_API GrExternalTextureGenerator : public GrTextureGenerator {
public:
GrExternalTextureGenerator(const SkImageInfo& info);
GrSurfaceProxyView onGenerateTexture(GrRecordingContext*,
const SkImageInfo&,
skgpu::Mipmapped,
GrImageTexGenPolicy) override;
virtual std::unique_ptr<GrExternalTexture> generateExternalTexture(GrRecordingContext *,
skgpu::Mipmapped) = 0;
};
namespace SkImages {
/**
* Like SkImages::DeferredFromGenerator except allows for the use of GrTextureGenerator.
*
* @param gen producer of textures
* @return created SkImage, or nullptr
*/
SK_API sk_sp<SkImage> DeferredFromTextureGenerator(std::unique_ptr<GrTextureGenerator> gen);
}
#endif // GrExternalTextureGenerator_DEFINED
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