| // Copyright 2016 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 SHELL_GPU_GPU_SURFACE_GL_H_ |
| #define SHELL_GPU_GPU_SURFACE_GL_H_ |
| |
| #include "flutter/fml/macros.h" |
| #include "flutter/fml/memory/weak_ptr.h" |
| #include "flutter/shell/common/surface.h" |
| #include "third_party/skia/include/gpu/GrContext.h" |
| |
| namespace shell { |
| |
| class GPUSurfaceGLDelegate { |
| public: |
| virtual bool GLContextMakeCurrent() = 0; |
| |
| virtual bool GLContextClearCurrent() = 0; |
| |
| virtual bool GLContextPresent() = 0; |
| |
| virtual intptr_t GLContextFBO() const = 0; |
| |
| virtual bool GLContextFBOResetAfterPresent() const { return false; } |
| |
| virtual bool UseOffscreenSurface() const { return false; } |
| }; |
| |
| class GPUSurfaceGL : public Surface { |
| public: |
| GPUSurfaceGL(GPUSurfaceGLDelegate* delegate); |
| |
| ~GPUSurfaceGL() override; |
| |
| bool IsValid() override; |
| |
| std::unique_ptr<SurfaceFrame> AcquireFrame(const SkISize& size) override; |
| |
| GrContext* GetContext() override; |
| |
| private: |
| GPUSurfaceGLDelegate* delegate_; |
| sk_sp<GrContext> context_; |
| sk_sp<SkSurface> onscreen_surface_; |
| sk_sp<SkSurface> offscreen_surface_; |
| bool valid_ = false; |
| fml::WeakPtrFactory<GPUSurfaceGL> weak_factory_; |
| |
| bool CreateOrUpdateSurfaces(const SkISize& size); |
| |
| sk_sp<SkSurface> AcquireRenderSurface(const SkISize& size); |
| |
| bool PresentSurface(SkCanvas* canvas); |
| |
| FML_DISALLOW_COPY_AND_ASSIGN(GPUSurfaceGL); |
| }; |
| |
| } // namespace shell |
| |
| #endif // SHELL_GPU_GPU_SURFACE_GL_H_ |