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/scoped_ptr.h"
  10 #include "base/memory/weak_ptr.h"
  11 #include "content/browser/compositor/browser_compositor_output_surface.h"
  12
  13 namespace ui {
  14 class CompositorVSyncManager;
  15 }
  16
  17 namespace content {
  18 class CommandBufferProxyImpl;
  19 class ReflectorTexture;
  20
  21 class OffscreenBrowserCompositorOutputSurface
  22     : public BrowserCompositorOutputSurface {
  23  public:
  24   OffscreenBrowserCompositorOutputSurface(
  25       const scoped_refptr<ContextProviderCommandBuffer>& context,
  26       const scoped_refptr<ContextProviderCommandBuffer>& worker_context,
  27       const scoped_refptr<ui::CompositorVSyncManager>& vsync_manager,
  28       scoped_ptr<BrowserCompositorOverlayCandidateValidator>
  29           overlay_candidate_validator);
  30
  31   ~OffscreenBrowserCompositorOutputSurface() override;
  32
  33  protected:
  34   // cc::OutputSurface:
  35   void EnsureBackbuffer() override;
  36   void DiscardBackbuffer() override;
  37   void Reshape(const gfx::Size& size, float scale_factor) override;
  38   void BindFramebuffer() override;
  39   void SwapBuffers(cc::CompositorFrame* frame) override;
  40
  41   // BrowserCompositorOutputSurface
  42   void OnReflectorChanged() override;
  43   base::Closure CreateCompositionStartedCallback() override;
  44 #if defined(OS_MACOSX)
  45   void OnSurfaceDisplayed() override {};
  46   void SetSurfaceSuspendedForRecycle(bool suspended) override {};
  47   bool SurfaceShouldNotShowFramesAfterSuspendForRecycle() const override;
  48 #endif
  49
  50   uint32 fbo_;
  51   bool is_backbuffer_discarded_;
  52   scoped_ptr<ReflectorTexture> reflector_texture_;
  53
  54   base::WeakPtrFactory<OffscreenBrowserCompositorOutputSurface>
  55       weak_ptr_factory_;
  56
  57  private:
  58   DISALLOW_COPY_AND_ASSIGN(OffscreenBrowserCompositorOutputSurface);
  59 };
  60
  61 }  // namespace content
  62
  63 #endif  // CONTENT_BROWSER_COMPOSITOR_OFFSCREEN_BROWSER_COMPOSITOR_OUTPUT_SURFACE_H_