src/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(const gfx::Vector2d& inner_delta,
  47                                    const gfx::Vector2d& outer_delta,
  48                                    float page_scale,
  49                                    float top_controls_delta) override {}
  50   virtual void ApplyViewportDeltas(const gfx::Vector2d& scroll_delta,
  51                                    float page_scale,
  52                                    float top_controls_delta) override {}
  53   virtual void RequestNewOutputSurface(bool fallback) override;
  54   virtual void DidInitializeOutputSurface() override {}
  55   virtual void WillCommit() override {}
  56   virtual void DidCommit() override {}
  57   virtual void DidCommitAndDrawFrame() override {}
  58   virtual void DidCompleteSwapBuffers() override {}
  59
  60   // cc::LayerTreeHostSingleThreadClient overrides.
  61   virtual void DidPostSwapBuffers() override {}
  62   virtual void DidAbortSwapBuffers() override {}
  63
  64   // cc::DelegatedFrameResourceCollectionClient overrides.
  65   virtual void UnusedResourcesAreAvailable() override;
  66
  67  private:
  68   void SetFrameData();
  69
  70   SharedRendererState* shared_renderer_state_;
  71
  72   typedef void* EGLContext;
  73   EGLContext last_egl_context_;
  74
  75   scoped_ptr<cc::CompositorFrame> committed_frame_;
  76
  77   // Information about last delegated frame.
  78   gfx::Size frame_size_;
  79
  80   // Infromation from UI on last commit.
  81   gfx::Vector2d scroll_offset_;
  82
  83   // Information from draw.
  84   gfx::Size viewport_;
  85   gfx::Rect clip_;
  86   bool stencil_enabled_;
  87   bool viewport_clip_valid_for_dcheck_;
  88
  89   scoped_refptr<AwGLSurface> gl_surface_;
  90
  91   scoped_ptr<cc::LayerTreeHost> layer_tree_host_;
  92   scoped_refptr<cc::Layer> root_layer_;
  93
  94   scoped_refptr<cc::DelegatedFrameResourceCollection> resource_collection_;
  95   scoped_refptr<cc::DelegatedFrameProvider> frame_provider_;
  96   scoped_refptr<cc::DelegatedRendererLayer> delegated_layer_;
  97
  98   // This is owned indirectly by |layer_tree_host_|.
  99   ParentOutputSurface* output_surface_;
 100
 101   ParentCompositorDrawConstraints draw_constraints_;
 102
 103   DISALLOW_COPY_AND_ASSIGN(HardwareRenderer);
 104 };
 105
 106 }  // namespace android_webview
 107
 108 #endif  // ANDROID_WEBVIEW_BROWSER_HARDWARE_RENDERER_H_