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Uses the same technique used during OpenGL composition to elide root surface access. The refactoring of this approach is tracked in https://github.com/flutter/flutter/issues/38466 Fixes https://github.com/flutter/flutter/issues/39009.
52 lines
1.5 KiB
C++
52 lines
1.5 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_SHELL_GPU_GPU_SURFACE_SOFTWARE_H_
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#define FLUTTER_SHELL_GPU_GPU_SURFACE_SOFTWARE_H_
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#include "flutter/fml/macros.h"
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#include "flutter/fml/memory/weak_ptr.h"
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#include "flutter/shell/common/surface.h"
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#include "flutter/shell/gpu/gpu_surface_software_delegate.h"
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namespace flutter {
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class GPUSurfaceSoftware : public Surface {
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public:
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GPUSurfaceSoftware(GPUSurfaceSoftwareDelegate* delegate,
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bool render_to_surface);
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~GPUSurfaceSoftware() override;
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// |Surface|
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bool IsValid() override;
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// |Surface|
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std::unique_ptr<SurfaceFrame> AcquireFrame(const SkISize& size) override;
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// |Surface|
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SkMatrix GetRootTransformation() const override;
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// |Surface|
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GrContext* GetContext() override;
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// |Surface|
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flutter::ExternalViewEmbedder* GetExternalViewEmbedder() override;
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private:
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GPUSurfaceSoftwareDelegate* delegate_;
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// TODO(38466): Refactor GPU surface APIs take into account the fact that an
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// external view embedder may want to render to the root surface. This is a
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// hack to make avoid allocating resources for the root surface when an
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// external view embedder is present.
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const bool render_to_surface_;
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fml::WeakPtrFactory<GPUSurfaceSoftware> weak_factory_;
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FML_DISALLOW_COPY_AND_ASSIGN(GPUSurfaceSoftware);
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};
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} // namespace flutter
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#endif // FLUTTER_SHELL_GPU_GPU_SURFACE_SOFTWARE_H_
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