| // Copyright 2014 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_OZONE_PLATFORM_DRI_GBM_SURFACE_H_ |
| #define UI_OZONE_PLATFORM_DRI_GBM_SURFACE_H_ |
| |
| #include "base/macros.h" |
| #include "base/memory/scoped_ptr.h" |
| #include "ui/gfx/geometry/size.h" |
| #include "ui/ozone/platform/dri/scanout_surface.h" |
| |
| struct gbm_bo; |
| struct gbm_device; |
| struct gbm_surface; |
| |
| namespace ui { |
| |
| class DriBuffer; |
| class DriWrapper; |
| |
| // Implement the ScanoutSurface interface on top of GBM (Generic Buffer |
| // Manager). GBM provides generic access to hardware accelerated surfaces which |
| // can be used in association with EGL to provide accelerated drawing. |
| class GbmSurface : public ScanoutSurface { |
| public: |
| GbmSurface(gbm_device* device, DriWrapper* dri, const gfx::Size& size); |
| virtual ~GbmSurface(); |
| |
| // ScanoutSurface: |
| virtual bool Initialize() OVERRIDE; |
| virtual uint32_t GetFramebufferId() const OVERRIDE; |
| virtual uint32_t GetHandle() const OVERRIDE; |
| virtual gfx::Size Size() const OVERRIDE; |
| virtual void PreSwapBuffers() OVERRIDE; |
| virtual void SwapBuffers() OVERRIDE; |
| |
| gbm_surface* native_surface() { return native_surface_; }; |
| |
| private: |
| gbm_device* gbm_device_; |
| |
| DriWrapper* dri_; |
| |
| gfx::Size size_; |
| |
| // The native GBM surface. In EGL this represents the EGLNativeWindowType. |
| gbm_surface* native_surface_; |
| |
| // Backing GBM buffers. One is the current front buffer. The other is the |
| // current backbuffer that is pending scan out. |
| gbm_bo* buffers_[2]; |
| |
| // Index to the front buffer. |
| int front_buffer_; |
| |
| // We can't lock (and get) an accelerated buffer from the GBM surface until |
| // after something draws into it. But modesetting needs to happen earlier, |
| // before an actual window is created and draws. So, we create a dumb buffer |
| // for this purpose. |
| scoped_ptr<DriBuffer> dumb_buffer_; |
| |
| DISALLOW_COPY_AND_ASSIGN(GbmSurface); |
| }; |
| |
| } // namespace ui |
| |
| #endif // UI_OZONE_PLATFORM_DRI_GBM_SURFACE_H_ |