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amirh
7e0bb3bbe8
This is needed to avoid jank when resizing an embedded Android view. See https://github.com/flutter/flutter/issues/19572#issuecomment-410400724
73 lines
1.5 KiB
C++
73 lines
1.5 KiB
C++
// Copyright 2017 The Chromium 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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namespace flow {
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class Texture {
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protected:
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Texture(int64_t id);
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public:
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// Called from GPU thread.
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virtual ~Texture();
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// Called from GPU thread.
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virtual void Paint(SkCanvas& canvas, const SkRect& bounds, bool freeze) = 0;
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// Called from GPU thread.
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virtual void OnGrContextCreated() = 0;
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// Called from GPU thread.
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virtual void OnGrContextDestroyed() = 0;
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// Called on GPU thread.
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virtual void MarkNewFrameAvailable() = 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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~TextureRegistry();
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// Called from GPU thread.
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void RegisterTexture(std::shared_ptr<Texture> texture);
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// Called from GPU thread.
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void UnregisterTexture(int64_t id);
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// Called from GPU thread.
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std::shared_ptr<Texture> GetTexture(int64_t id);
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// Called from GPU thread.
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void OnGrContextCreated();
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// Called from GPU 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 flow
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#endif // FLUTTER_FLOW_TEXTURE_H_
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