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e5614964f4
This is part of a larger effort to expose the difference between GrDirectContext, which runs on the GPU thread and can directly perform operations like uploading textures, and GrRecordingContext, which can only queue up work to be delivered to the GrDirectContext later.
78 lines
1.8 KiB
C++
78 lines
1.8 KiB
C++
// Copyright 2013 The Flutter Authors. All rights reserved.
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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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#ifndef FLUTTER_FLOW_TEXTURE_H_
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#define FLUTTER_FLOW_TEXTURE_H_
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#include <map>
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#include "flutter/fml/macros.h"
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#include "flutter/fml/synchronization/waitable_event.h"
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#include "third_party/skia/include/core/SkCanvas.h"
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class GrDirectContext;
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namespace flutter {
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class Texture {
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public:
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Texture(int64_t id); // Called from UI or raster thread.
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virtual ~Texture(); // Called from raster thread.
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// Called from raster thread.
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virtual void Paint(SkCanvas& canvas,
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const SkRect& bounds,
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bool freeze,
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GrDirectContext* context,
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SkFilterQuality quality) = 0;
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// Called from raster thread.
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virtual void OnGrContextCreated() = 0;
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// Called from raster thread.
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virtual void OnGrContextDestroyed() = 0;
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// Called on raster thread.
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virtual void MarkNewFrameAvailable() = 0;
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// Called on raster thread.
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virtual void OnTextureUnregistered() = 0;
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int64_t Id() { return id_; }
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private:
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int64_t id_;
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FML_DISALLOW_COPY_AND_ASSIGN(Texture);
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};
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class TextureRegistry {
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public:
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TextureRegistry();
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// Called from raster thread.
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void RegisterTexture(std::shared_ptr<Texture> texture);
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// Called from raster thread.
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void UnregisterTexture(int64_t id);
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// Called from raster thread.
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std::shared_ptr<Texture> GetTexture(int64_t id);
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// Called from raster thread.
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void OnGrContextCreated();
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// Called from raster thread.
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void OnGrContextDestroyed();
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private:
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std::map<int64_t, std::shared_ptr<Texture>> mapping_;
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FML_DISALLOW_COPY_AND_ASSIGN(TextureRegistry);
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};
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} // namespace flutter
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#endif // FLUTTER_FLOW_TEXTURE_H_
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