cc/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_SOFTWARE_RENDERER_H_
   6 #define CC_SOFTWARE_RENDERER_H_
   7
   8 #include "base/basictypes.h"
   9 #include "cc/cc_export.h"
  10 #include "cc/direct_renderer.h"
  11
  12 namespace cc {
  13
  14 class DebugBorderDrawQuad;
  15 class RendererClient;
  16 class RenderPassDrawQuad;
  17 class ResourceProvider;
  18 class SoftwareOutputDevice;
  19 class SolidColorDrawQuad;
  20 class TextureDrawQuad;
  21 class TileDrawQuad;
  22
  23 class CC_EXPORT SoftwareRenderer : public DirectRenderer {
  24 public:
  25     static scoped_ptr<SoftwareRenderer> create(RendererClient*, ResourceProvider*, SoftwareOutputDevice*);
  26     virtual ~SoftwareRenderer();
  27
  28     virtual const RendererCapabilities& capabilities() const OVERRIDE;
  29
  30     virtual void viewportChanged() OVERRIDE;
  31
  32     virtual void finish() OVERRIDE;
  33
  34     virtual bool swapBuffers() OVERRIDE;
  35
  36     virtual void getFramebufferPixels(void *pixels, const gfx::Rect&) OVERRIDE;
  37
  38     virtual void setVisible(bool) OVERRIDE;
  39
  40     virtual void sendManagedMemoryStats(size_t bytesVisible, size_t bytesVisibleAndNearby, size_t bytesAllocated) OVERRIDE  { }
  41
  42 protected:
  43     virtual void bindFramebufferToOutputSurface(DrawingFrame&) OVERRIDE;
  44     virtual bool bindFramebufferToTexture(DrawingFrame&, const ScopedResource*, const gfx::Rect& framebufferRect) OVERRIDE;
  45     virtual void setDrawViewportSize(const gfx::Size&) OVERRIDE;
  46     virtual void setScissorTestRect(const gfx::Rect& scissorRect) OVERRIDE;
  47     virtual void clearFramebuffer(DrawingFrame&) OVERRIDE;
  48     virtual void drawQuad(DrawingFrame&, const DrawQuad*) OVERRIDE;
  49     virtual void beginDrawingFrame(DrawingFrame&) OVERRIDE;
  50     virtual void finishDrawingFrame(DrawingFrame&) OVERRIDE;
  51     virtual bool flippedFramebuffer() const OVERRIDE;
  52     virtual void ensureScissorTestEnabled() OVERRIDE;
  53     virtual void ensureScissorTestDisabled() OVERRIDE;
  54
  55 private:
  56     SoftwareRenderer(RendererClient*, ResourceProvider*, SoftwareOutputDevice*);
  57
  58     bool isSoftwareResource(ResourceProvider::ResourceId) const;
  59
  60     void drawDebugBorderQuad(const DrawingFrame&, const DebugBorderDrawQuad*);
  61     void drawSolidColorQuad(const DrawingFrame&, const SolidColorDrawQuad*);
  62     void drawTextureQuad(const DrawingFrame&, const TextureDrawQuad*);
  63     void drawTileQuad(const DrawingFrame&, const TileDrawQuad*);
  64     void drawRenderPassQuad(const DrawingFrame& frame, const RenderPassDrawQuad*);
  65     void drawUnsupportedQuad(const DrawingFrame&, const DrawQuad*);
  66
  67     RendererCapabilities m_capabilities;
  68     bool m_visible;
  69
  70     SoftwareOutputDevice* m_outputDevice;
  71     scoped_ptr<SkCanvas> m_skRootCanvas;
  72     SkCanvas* m_skCurrentCanvas;
  73     SkPaint m_skCurrentPaint;
  74     scoped_ptr<ResourceProvider::ScopedWriteLockSoftware> m_currentFramebufferLock;
  75
  76     DISALLOW_COPY_AND_ASSIGN(SoftwareRenderer);
  77 };
  78
  79 }
  80
  81 #endif  // CC_SOFTWARE_RENDERER_H_