content/browser/compositor/offscreen_browser_compositor_output_surface.h

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CONTENT_BROWSER_COMPOSITOR_OFFSCREEN_BROWSER_COMPOSITOR_OUTPUT_SURFACE_H_
   6 #define CONTENT_BROWSER_COMPOSITOR_OFFSCREEN_BROWSER_COMPOSITOR_OUTPUT_SURFACE_H_
   7
   8 #include "base/cancelable_callback.h"
   9 #include "base/memory/weak_ptr.h"
  10 #include "content/browser/compositor/browser_compositor_output_surface.h"
  11
  12 namespace ui {
  13 class CompositorVSyncManager;
  14 }
  15
  16 namespace content {
  17 class CommandBufferProxyImpl;
  18
  19 class OffscreenBrowserCompositorOutputSurface
  20     : public BrowserCompositorOutputSurface {
  21  public:
  22   OffscreenBrowserCompositorOutputSurface(
  23       const scoped_refptr<ContextProviderCommandBuffer>& context,
  24       const scoped_refptr<ui::CompositorVSyncManager>& vsync_manager,
  25       scoped_ptr<BrowserCompositorOverlayCandidateValidator>
  26           overlay_candidate_validator);
  27
  28   ~OffscreenBrowserCompositorOutputSurface() override;
  29
  30  protected:
  31   // cc::OutputSurface:
  32   void EnsureBackbuffer() override;
  33   void DiscardBackbuffer() override;
  34   void Reshape(const gfx::Size& size, float scale_factor) override;
  35   void BindFramebuffer() override;
  36   void SwapBuffers(cc::CompositorFrame* frame) override;
  37
  38 #if defined(OS_MACOSX)
  39   void OnSurfaceDisplayed() override {};
  40   void SetSurfaceSuspendedForRecycle(bool suspended) override {};
  41   bool SurfaceShouldNotShowFramesAfterSuspendForRecycle() const override;
  42 #endif
  43
  44   uint32 fbo_;
  45   bool is_backbuffer_discarded_;
  46   uint32 backing_texture_id_;
  47
  48   base::WeakPtrFactory<OffscreenBrowserCompositorOutputSurface>
  49       weak_ptr_factory_;
  50
  51  private:
  52   DISALLOW_COPY_AND_ASSIGN(OffscreenBrowserCompositorOutputSurface);
  53 };
  54
  55 }  // namespace content
  56
  57 #endif  // CONTENT_BROWSER_COMPOSITOR_OFFSCREEN_BROWSER_COMPOSITOR_OUTPUT_SURFACE_H_