software_renderer.h revision b2df76ea8fec9e32f6f3718986dba0d95315b29c 
1// Copyright 2012 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 CC_OUTPUT_SOFTWARE_RENDERER_H_
6#define CC_OUTPUT_SOFTWARE_RENDERER_H_
7
8#include "base/basictypes.h"
9#include "cc/base/cc_export.h"
10#include "cc/output/compositor_frame.h"
11#include "cc/output/direct_renderer.h"
12
13namespace cc {
14
15class OutputSurface;
16class SoftwareOutputDevice;
17class ContentDrawQuadBase;
18class DebugBorderDrawQuad;
19class PictureDrawQuad;
20class RendererClient;
21class RenderPassDrawQuad;
22class ResourceProvider;
23class SolidColorDrawQuad;
24class TextureDrawQuad;
25class TileDrawQuad;
26
27class CC_EXPORT SoftwareRenderer : public DirectRenderer {
28 public:
29  static scoped_ptr<SoftwareRenderer> Create(
30      RendererClient* client,
31      OutputSurface* output_surface,
32      ResourceProvider* resource_provider);
33
34  virtual ~SoftwareRenderer();
35  virtual const RendererCapabilities& Capabilities() const OVERRIDE;
36  virtual void ViewportChanged() OVERRIDE;
37  virtual void Finish() OVERRIDE;
38  virtual void SwapBuffers(const LatencyInfo& latency_info) OVERRIDE;
39  virtual void GetFramebufferPixels(void* pixels, gfx::Rect rect) OVERRIDE;
40  virtual void SetVisible(bool visible) OVERRIDE;
41  virtual void SendManagedMemoryStats(
42      size_t bytes_visible,
43      size_t bytes_visible_and_nearby,
44      size_t bytes_allocated) OVERRIDE  {}
45  virtual void ReceiveCompositorFrameAck(
46      const CompositorFrameAck& ack) OVERRIDE;
47
48 protected:
49  virtual void BindFramebufferToOutputSurface(DrawingFrame* frame) OVERRIDE;
50  virtual bool BindFramebufferToTexture(
51      DrawingFrame* frame,
52      const ScopedResource* texture,
53      gfx::Rect framebuffer_rect) OVERRIDE;
54  virtual void SetDrawViewportSize(gfx::Size viewport_size) OVERRIDE;
55  virtual void SetScissorTestRect(gfx::Rect scissor_rect) OVERRIDE;
56  virtual void ClearFramebuffer(DrawingFrame* frame) OVERRIDE;
57  virtual void DoDrawQuad(DrawingFrame* frame, const DrawQuad* quad) OVERRIDE;
58  virtual void BeginDrawingFrame(DrawingFrame* frame) OVERRIDE;
59  virtual void FinishDrawingFrame(DrawingFrame* frame) OVERRIDE;
60  virtual bool FlippedFramebuffer() const OVERRIDE;
61  virtual void EnsureScissorTestEnabled() OVERRIDE;
62  virtual void EnsureScissorTestDisabled() OVERRIDE;
63  virtual void CopyCurrentRenderPassToBitmap(
64      DrawingFrame* frame,
65      const CopyRenderPassCallback& callback) OVERRIDE;
66
67 private:
68  SoftwareRenderer(
69      RendererClient* client,
70      OutputSurface* output_surface,
71      ResourceProvider* resource_provider);
72
73  void ClearCanvas(SkColor color);
74  void SetClipRect(gfx::Rect rect);
75  bool IsSoftwareResource(ResourceProvider::ResourceId resource_id) const;
76
77  void DrawDebugBorderQuad(const DrawingFrame* frame,
78                           const DebugBorderDrawQuad* quad);
79  void DrawPictureQuad(const DrawingFrame* frame,
80                       const PictureDrawQuad* quad);
81  void DrawSolidColorQuad(const DrawingFrame* frame,
82                          const SolidColorDrawQuad* quad);
83  void DrawTextureQuad(const DrawingFrame* frame,
84                       const TextureDrawQuad* quad);
85  void DrawTileQuad(const DrawingFrame* frame,
86                    const TileDrawQuad* quad);
87  void DrawRenderPassQuad(const DrawingFrame* frame,
88                          const RenderPassDrawQuad* quad);
89  void DrawUnsupportedQuad(const DrawingFrame* frame,
90                           const DrawQuad* quad);
91
92  RendererCapabilities capabilities_;
93  bool visible_;
94  bool is_scissor_enabled_;
95  bool is_viewport_changed_;
96  gfx::Rect scissor_rect_;
97
98  OutputSurface* output_surface_;
99  SoftwareOutputDevice* output_device_;
100  SkCanvas* root_canvas_;
101  SkCanvas* current_canvas_;
102  SkPaint current_paint_;
103  scoped_ptr<ResourceProvider::ScopedWriteLockSoftware>
104      current_framebuffer_lock_;
105  CompositorFrame compositor_frame_;
106
107  DISALLOW_COPY_AND_ASSIGN(SoftwareRenderer);
108};
109
110}  // namespace cc
111
112#endif  // CC_OUTPUT_SOFTWARE_RENDERER_H_
113