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