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The GPUSurfaceGL holds references to Skia objects that may own GL objects. If the GL objects are destructed on the GPU thread after the EGL context has been dropped, then the GL delete calls will not take effect.
80 lines
1.8 KiB
C++
80 lines
1.8 KiB
C++
// Copyright 2016 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_GPU_SURFACE_GL_H_
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#define SHELL_GPU_GPU_SURFACE_GL_H_
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#include "flutter/shell/common/surface.h"
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#include "flutter/synchronization/debug_thread_checker.h"
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#include "lib/ftl/macros.h"
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#include "lib/ftl/memory/weak_ptr.h"
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namespace shell {
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class GPUSurfaceGLDelegate {
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public:
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virtual bool GLContextMakeCurrent() = 0;
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virtual bool GLContextClearCurrent() = 0;
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virtual bool GLContextPresent() = 0;
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virtual intptr_t GLContextFBO() const = 0;
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};
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class GPUSurfaceGL : public Surface {
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public:
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GPUSurfaceGL(GPUSurfaceGLDelegate* delegate);
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~GPUSurfaceGL() override;
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bool Setup() override;
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bool IsValid() override;
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std::unique_ptr<SurfaceFrame> AcquireFrame(const SkISize& size) override;
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GrContext* GetContext() override;
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private:
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GPUSurfaceGLDelegate* delegate_;
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sk_sp<GrContext> context_;
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sk_sp<SkSurface> cached_surface_;
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ftl::WeakPtrFactory<GPUSurfaceGL> weak_factory_;
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sk_sp<SkSurface> CreateSurface(const SkISize& size);
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sk_sp<SkSurface> AcquireSurface(const SkISize& size);
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bool PresentSurface(SkCanvas* canvas);
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bool SelectPixelConfig(GrPixelConfig* config);
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FTL_DISALLOW_COPY_AND_ASSIGN(GPUSurfaceGL);
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};
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class GPUSurfaceFrameGL : public SurfaceFrame {
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public:
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using SubmitCallback = std::function<bool(SkCanvas* canvas)>;
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GPUSurfaceFrameGL(sk_sp<SkSurface> surface, SubmitCallback submit_callback);
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~GPUSurfaceFrameGL();
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SkCanvas* SkiaCanvas() override;
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private:
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FLUTTER_THREAD_CHECKER_DECLARE(checker_);
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sk_sp<SkSurface> surface_;
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SubmitCallback submit_callback_;
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bool PerformSubmit() override;
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FTL_DISALLOW_COPY_AND_ASSIGN(GPUSurfaceFrameGL);
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};
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} // namespace shell
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#endif // SHELL_GPU_GPU_SURFACE_GL_H_
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