cc/output/software_renderer.h

   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
  13 namespace cc {
  14
  15 class OutputSurface;
  16 class RendererClient;
  17 class ResourceProvider;
  18 class SoftwareOutputDevice;
  19
  20 class CheckerboardDrawQuad;
  21 class DebugBorderDrawQuad;
  22 class PictureDrawQuad;
  23 class RenderPassDrawQuad;
  24 class SolidColorDrawQuad;
  25 class TextureDrawQuad;
  26 class TileDrawQuad;
  27
  28 class CC_EXPORT SoftwareRenderer : public DirectRenderer {
  29  public:
  30   static scoped_ptr<SoftwareRenderer> Create(
  31       RendererClient* client,
  32       OutputSurface* output_surface,
  33       ResourceProvider* resource_provider);
  34
  35   virtual ~SoftwareRenderer();
  36   virtual const RendererCapabilities& Capabilities() const OVERRIDE;
  37   virtual void Finish() OVERRIDE;
  38   virtual void SwapBuffers() 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 ReceiveSwapBuffersAck(
  46       const CompositorFrameAck& ack) OVERRIDE;
  47   virtual void SetDiscardBackBufferWhenNotVisible(bool discard) OVERRIDE;
  48
  49  protected:
  50   virtual void BindFramebufferToOutputSurface(DrawingFrame* frame) OVERRIDE;
  51   virtual bool BindFramebufferToTexture(
  52       DrawingFrame* frame,
  53       const ScopedResource* texture,
  54       gfx::Rect target_rect) OVERRIDE;
  55   virtual void SetDrawViewport(gfx::Rect window_space_viewport) OVERRIDE;
  56   virtual void SetScissorTestRect(gfx::Rect scissor_rect) OVERRIDE;
  57   virtual void ClearFramebuffer(DrawingFrame* frame) OVERRIDE;
  58   virtual void DoDrawQuad(DrawingFrame* frame, const DrawQuad* quad) OVERRIDE;
  59   virtual void BeginDrawingFrame(DrawingFrame* frame) OVERRIDE;
  60   virtual void FinishDrawingFrame(DrawingFrame* frame) OVERRIDE;
  61   virtual bool FlippedFramebuffer() const OVERRIDE;
  62   virtual void EnsureScissorTestEnabled() OVERRIDE;
  63   virtual void EnsureScissorTestDisabled() OVERRIDE;
  64   virtual void CopyCurrentRenderPassToBitmap(
  65       DrawingFrame* frame,
  66       scoped_ptr<CopyOutputRequest> request) OVERRIDE;
  67
  68   SoftwareRenderer(
  69       RendererClient* client,
  70       OutputSurface* output_surface,
  71       ResourceProvider* resource_provider);
  72
  73  private:
  74   void ClearCanvas(SkColor color);
  75   void SetClipRect(gfx::Rect rect);
  76   bool IsSoftwareResource(ResourceProvider::ResourceId resource_id) const;
  77
  78   void DrawCheckerboardQuad(const DrawingFrame* frame,
  79                             const CheckerboardDrawQuad* quad);
  80   void DrawDebugBorderQuad(const DrawingFrame* frame,
  81                            const DebugBorderDrawQuad* quad);
  82   void DrawPictureQuad(const DrawingFrame* frame,
  83                        const PictureDrawQuad* quad);
  84   void DrawRenderPassQuad(const DrawingFrame* frame,
  85                           const RenderPassDrawQuad* quad);
  86   void DrawSolidColorQuad(const DrawingFrame* frame,
  87                           const SolidColorDrawQuad* quad);
  88   void DrawTextureQuad(const DrawingFrame* frame,
  89                        const TextureDrawQuad* quad);
  90   void DrawTileQuad(const DrawingFrame* frame,
  91                     const TileDrawQuad* quad);
  92   void DrawUnsupportedQuad(const DrawingFrame* frame,
  93                            const DrawQuad* quad);
  94
  95   RendererCapabilities capabilities_;
  96   bool visible_;
  97   bool is_scissor_enabled_;
  98   gfx::Rect scissor_rect_;
  99
 100   SoftwareOutputDevice* output_device_;
 101   SkCanvas* root_canvas_;
 102   SkCanvas* current_canvas_;
 103   SkPaint current_paint_;
 104   scoped_ptr<ResourceProvider::ScopedWriteLockSoftware>
 105       current_framebuffer_lock_;
 106   scoped_ptr<SoftwareFrameData> current_frame_data_;
 107
 108   DISALLOW_COPY_AND_ASSIGN(SoftwareRenderer);
 109 };
 110
 111 }  // namespace cc
 112
 113 #endif  // CC_OUTPUT_SOFTWARE_RENDERER_H_