| // Copyright (c) 2013 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 UI_ACCELERATED_WIDGET_MAC_IO_SURFACE_CONTEXT_H_ |
| #define UI_ACCELERATED_WIDGET_MAC_IO_SURFACE_CONTEXT_H_ |
| |
| #include <OpenGL/OpenGL.h> |
| |
| #include <map> |
| #include <memory> |
| |
| #include "base/mac/scoped_nsobject.h" |
| #include "base/memory/ref_counted.h" |
| #include "ui/accelerated_widget_mac/accelerated_widget_mac_export.h" |
| #include "ui/gl/gpu_switching_observer.h" |
| #include "ui/gl/scoped_cgl.h" |
| |
| namespace ui { |
| |
| class IOSurfaceContext |
| : public base::RefCounted<IOSurfaceContext>, |
| public ui::GpuSwitchingObserver { |
| public: |
| enum Type { |
| // The number used to look up the context used for async readback and for |
| // initializing the IOSurface. |
| kOffscreenContext = -2, |
| // The number used to look up the context used by CAOpenGLLayers. |
| kCALayerContext = -3, |
| }; |
| |
| // Get or create a GL context of the specified type. Share these GL contexts |
| // as much as possible because creating and destroying them can be expensive. |
| // http://crbug.com/180463 |
| ACCELERATED_WIDGET_MAC_EXPORT static scoped_refptr<IOSurfaceContext> Get( |
| Type type); |
| |
| // Mark that all the GL contexts in the same sharegroup as this context as |
| // invalid, so they shouldn't be returned anymore by Get, but rather, new |
| // contexts should be created. This is called as a precaution when unexpected |
| // GL errors occur, or after a GPU switch. |
| void PoisonContextAndSharegroup(); |
| bool HasBeenPoisoned() const { return poisoned_; } |
| |
| CGLContextObj cgl_context() const { return cgl_context_; } |
| |
| // ui::GpuSwitchingObserver implementation. |
| void OnGpuSwitched() override; |
| |
| private: |
| friend class base::RefCounted<IOSurfaceContext>; |
| |
| IOSurfaceContext( |
| Type type, |
| base::ScopedTypeRef<CGLContextObj> clg_context_strong); |
| virtual ~IOSurfaceContext(); |
| |
| Type type_; |
| base::ScopedTypeRef<CGLContextObj> cgl_context_; |
| |
| bool poisoned_; |
| }; |
| |
| } // namespace ui |
| |
| #endif // UI_ACCELERATED_WIDGET_MAC_IO_SURFACE_CONTEXT_H_ |