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63 lines
1.9 KiB
C++
63 lines
1.9 KiB
C++
// Copyright 2015 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 SHELL_GPU_DIRECT_GPU_RASTERIZER_H_
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#define SHELL_GPU_DIRECT_GPU_RASTERIZER_H_
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#include "flutter/flow/compositor_context.h"
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#include "flutter/shell/common/rasterizer.h"
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#include "lib/fxl/memory/weak_ptr.h"
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#include "lib/fxl/synchronization/waitable_event.h"
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namespace shell {
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class Surface;
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class GPURasterizer : public Rasterizer {
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public:
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GPURasterizer(std::unique_ptr<flow::ProcessInfo> info);
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~GPURasterizer() override;
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void Setup(std::unique_ptr<Surface> surface,
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fxl::Closure continuation,
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fxl::AutoResetWaitableEvent* setup_completion_event) override;
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void Clear(SkColor color, const SkISize& size) override;
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void Teardown(
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fxl::AutoResetWaitableEvent* teardown_completion_event) override;
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fml::WeakPtr<Rasterizer> GetWeakRasterizerPtr() override;
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flow::LayerTree* GetLastLayerTree() override;
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void Draw(fxl::RefPtr<flutter::Pipeline<flow::LayerTree>> pipeline) override;
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// Set a callback to be called once when the next frame is drawn.
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void AddNextFrameCallback(fxl::Closure nextFrameCallback) override;
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private:
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std::unique_ptr<Surface> surface_;
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flow::CompositorContext compositor_context_;
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std::unique_ptr<flow::LayerTree> last_layer_tree_;
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// A closure to be called when the underlaying surface presents a frame the
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// next time. NULL if there is no callback or the callback was set back to
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// NULL after being called.
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fxl::Closure nextFrameCallback_;
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fml::WeakPtrFactory<GPURasterizer> weak_factory_;
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void DoDraw(std::unique_ptr<flow::LayerTree> layer_tree);
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void DrawToSurface(flow::LayerTree& layer_tree);
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void NotifyNextFrameOnce();
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FXL_DISALLOW_COPY_AND_ASSIGN(GPURasterizer);
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};
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} // namespace shell
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#endif // SHELL_GPU_DIRECT_GPU_RASTERIZER_H_
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