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texture.h
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texture.h
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// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef FLUTTER_FLOW_TEXTURE_H_
#define FLUTTER_FLOW_TEXTURE_H_
#include <map>
#include "lib/fxl/synchronization/waitable_event.h"
#include "third_party/skia/include/core/SkCanvas.h"
namespace flow {
class Texture {
protected:
Texture(int64_t id);
public:
// Called from GPU thread.
virtual ~Texture();
// Called from GPU thread.
virtual void Paint(SkCanvas& canvas, const SkRect& bounds) = 0;
// Called from GPU thread.
virtual void OnGrContextCreated() = 0;
// Called from GPU thread.
virtual void OnGrContextDestroyed() = 0;
// Called on GPU thread.
virtual void MarkNewFrameAvailable() = 0;
int64_t Id() { return id_; }
private:
int64_t id_;
FXL_DISALLOW_COPY_AND_ASSIGN(Texture);
};
class TextureRegistry {
public:
TextureRegistry();
~TextureRegistry();
// Called from GPU thread.
void RegisterTexture(std::shared_ptr<Texture> texture);
// Called from GPU thread.
void UnregisterTexture(int64_t id);
// Called from GPU thread.
std::shared_ptr<Texture> GetTexture(int64_t id);
// Called from GPU thread.
void OnGrContextCreated();
// Called from GPU thread.
void OnGrContextDestroyed();
private:
std::map<int64_t, std::shared_ptr<Texture>> mapping_;
FXL_DISALLOW_COPY_AND_ASSIGN(TextureRegistry);
};
} // namespace flow
#endif // FLUTTER_FLOW_TEXTURE_H_