android_webview/browser/hardware_renderer.h

   1 // Copyright 2014 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 ANDROID_WEBVIEW_BROWSER_HARDWARE_RENDERER_H_
   6 #define ANDROID_WEBVIEW_BROWSER_HARDWARE_RENDERER_H_
   7
   8 #include "android_webview/browser/parent_compositor_draw_constraints.h"
   9 #include "android_webview/browser/shared_renderer_state.h"
  10 #include "base/memory/scoped_ptr.h"
  11 #include "cc/layers/delegated_frame_resource_collection.h"
  12 #include "cc/trees/layer_tree_host_client.h"
  13 #include "cc/trees/layer_tree_host_single_thread_client.h"
  14
  15 struct AwDrawGLInfo;
  16
  17 namespace cc {
  18 class DelegatedFrameProvider;
  19 class DelegatedRendererLayer;
  20 class Layer;
  21 class LayerTreeHost;
  22 }
  23
  24 namespace android_webview {
  25
  26 class AwGLSurface;
  27 class ParentOutputSurface;
  28
  29 class HardwareRenderer : public cc::LayerTreeHostClient,
  30                          public cc::LayerTreeHostSingleThreadClient,
  31                          public cc::DelegatedFrameResourceCollectionClient {
  32  public:
  33   explicit HardwareRenderer(SharedRendererState* state);
  34   virtual ~HardwareRenderer();
  35
  36   void DrawGL(bool stencil_enabled,
  37               int framebuffer_binding_ext,
  38               AwDrawGLInfo* draw_info);
  39   void CommitFrame();
  40
  41   // cc::LayerTreeHostClient overrides.
  42   virtual void WillBeginMainFrame(int frame_id) override {}
  43   virtual void DidBeginMainFrame() override;
  44   virtual void BeginMainFrame(const cc::BeginFrameArgs& args) override {}
  45   virtual void Layout() override {}
  46   virtual void ApplyViewportDeltas(
  47       const gfx::Vector2d& inner_delta,
  48       const gfx::Vector2d& outer_delta,
  49       const gfx::Vector2dF& elastic_overscroll_delta,
  50       float page_scale,
  51       float top_controls_delta) override {}
  52   virtual void ApplyViewportDeltas(const gfx::Vector2d& scroll_delta,
  53                                    float page_scale,
  54                                    float top_controls_delta) override {}
  55   virtual void RequestNewOutputSurface() override;
  56   virtual void DidInitializeOutputSurface() override {}
  57   virtual void DidFailToInitializeOutputSurface() override;
  58   virtual void WillCommit() override {}
  59   virtual void DidCommit() override {}
  60   virtual void DidCommitAndDrawFrame() override {}
  61   virtual void DidCompleteSwapBuffers() override {}
  62
  63   // cc::LayerTreeHostSingleThreadClient overrides.
  64   virtual void DidPostSwapBuffers() override {}
  65   virtual void DidAbortSwapBuffers() override {}
  66
  67   // cc::DelegatedFrameResourceCollectionClient overrides.
  68   virtual void UnusedResourcesAreAvailable() override;
  69
  70  private:
  71   void SetFrameData();
  72
  73   SharedRendererState* shared_renderer_state_;
  74
  75   typedef void* EGLContext;
  76   EGLContext last_egl_context_;
  77
  78   scoped_ptr<cc::CompositorFrame> committed_frame_;
  79
  80   // Information about last delegated frame.
  81   gfx::Size frame_size_;
  82
  83   // Infromation from UI on last commit.
  84   gfx::Vector2d scroll_offset_;
  85
  86   // Information from draw.
  87   gfx::Size viewport_;
  88   gfx::Rect clip_;
  89   bool stencil_enabled_;
  90   bool viewport_clip_valid_for_dcheck_;
  91
  92   scoped_refptr<AwGLSurface> gl_surface_;
  93
  94   scoped_ptr<cc::LayerTreeHost> layer_tree_host_;
  95   scoped_refptr<cc::Layer> root_layer_;
  96
  97   scoped_refptr<cc::DelegatedFrameResourceCollection> resource_collection_;
  98   scoped_refptr<cc::DelegatedFrameProvider> frame_provider_;
  99   scoped_refptr<cc::DelegatedRendererLayer> delegated_layer_;
 100
 101   // This is owned indirectly by |layer_tree_host_|.
 102   ParentOutputSurface* output_surface_;
 103
 104   ParentCompositorDrawConstraints draw_constraints_;
 105
 106   DISALLOW_COPY_AND_ASSIGN(HardwareRenderer);
 107 };
 108
 109 }  // namespace android_webview
 110
 111 #endif  // ANDROID_WEBVIEW_BROWSER_HARDWARE_RENDERER_H_