55 lines
1.7 KiB
C++
55 lines
1.7 KiB
C++
/*
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* Copyright 2023 Google LLC
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef GrExternalTextureGenerator_DEFINED
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#define GrExternalTextureGenerator_DEFINED
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#include "include/core/SkRefCnt.h"
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#include "include/gpu/ganesh/GrBackendSurface.h"
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#include "include/private/base/SkAPI.h"
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#include "include/private/gpu/ganesh/GrTextureGenerator.h"
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#include <memory>
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class GrRecordingContext;
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class GrSurfaceProxyView;
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class SkImage;
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enum class GrImageTexGenPolicy : int;
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namespace skgpu { enum class Mipmapped : bool; }
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struct SkImageInfo;
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class GrExternalTexture {
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public:
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virtual ~GrExternalTexture() = default;
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virtual GrBackendTexture getBackendTexture() = 0;
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virtual void dispose() = 0;
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};
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class SK_API GrExternalTextureGenerator : public GrTextureGenerator {
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public:
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explicit GrExternalTextureGenerator(const SkImageInfo& info);
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GrSurfaceProxyView onGenerateTexture(GrRecordingContext*,
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const SkImageInfo&,
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skgpu::Mipmapped,
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GrImageTexGenPolicy) override;
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virtual std::unique_ptr<GrExternalTexture> generateExternalTexture(GrRecordingContext *,
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skgpu::Mipmapped) = 0;
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};
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namespace SkImages {
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/**
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* Like SkImages::DeferredFromGenerator except allows for the use of GrTextureGenerator.
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*
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* @param gen producer of textures
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* @return created SkImage, or nullptr
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*/
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SK_API sk_sp<SkImage> DeferredFromTextureGenerator(std::unique_ptr<GrTextureGenerator> gen);
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}
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#endif // GrExternalTextureGenerator_DEFINED
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