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// Copyright 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CC_OUTPUT_SOFTWARE_RENDERER_H_
#define CC_OUTPUT_SOFTWARE_RENDERER_H_
#include "base/basictypes.h"
#include "cc/base/cc_export.h"
#include "cc/output/compositor_frame.h"
#include "cc/output/direct_renderer.h"
namespace cc {
class OutputSurface;
class RendererClient;
class ResourceProvider;
class SoftwareOutputDevice;
class CheckerboardDrawQuad;
class DebugBorderDrawQuad;
class PictureDrawQuad;
class RenderPassDrawQuad;
class SolidColorDrawQuad;
class TextureDrawQuad;
class TileDrawQuad;
class CC_EXPORT SoftwareRenderer : public DirectRenderer {
public:
static scoped_ptr<SoftwareRenderer> Create(
RendererClient* client,
const LayerTreeSettings* settings,
OutputSurface* output_surface,
ResourceProvider* resource_provider);
virtual ~SoftwareRenderer();
virtual const RendererCapabilitiesImpl& Capabilities() const OVERRIDE;
virtual void Finish() OVERRIDE;
virtual void SwapBuffers(const CompositorFrameMetadata& metadata) OVERRIDE;
virtual void GetFramebufferPixels(void* pixels,
const gfx::Rect& rect) OVERRIDE;
virtual void SendManagedMemoryStats(
size_t bytes_visible,
size_t bytes_visible_and_nearby,
size_t bytes_allocated) OVERRIDE {}
virtual void ReceiveSwapBuffersAck(
const CompositorFrameAck& ack) OVERRIDE;
virtual void DiscardBackbuffer() OVERRIDE;
virtual void EnsureBackbuffer() OVERRIDE;
protected:
virtual void BindFramebufferToOutputSurface(DrawingFrame* frame) OVERRIDE;
virtual bool BindFramebufferToTexture(
DrawingFrame* frame,
const ScopedResource* texture,
const gfx::Rect& target_rect) OVERRIDE;
virtual void SetDrawViewport(const gfx::Rect& window_space_viewport) OVERRIDE;
virtual void SetScissorTestRect(const gfx::Rect& scissor_rect) OVERRIDE;
virtual void DiscardPixels(bool has_external_stencil_test,
bool draw_rect_covers_full_surface) OVERRIDE;
virtual void ClearFramebuffer(DrawingFrame* frame,
bool has_external_stencil_test) OVERRIDE;
virtual void DoDrawQuad(DrawingFrame* frame, const DrawQuad* quad) OVERRIDE;
virtual void BeginDrawingFrame(DrawingFrame* frame) OVERRIDE;
virtual void FinishDrawingFrame(DrawingFrame* frame) OVERRIDE;
virtual bool FlippedFramebuffer() const OVERRIDE;
virtual void EnsureScissorTestEnabled() OVERRIDE;
virtual void EnsureScissorTestDisabled() OVERRIDE;
virtual void CopyCurrentRenderPassToBitmap(
DrawingFrame* frame,
scoped_ptr<CopyOutputRequest> request) OVERRIDE;
SoftwareRenderer(RendererClient* client,
const LayerTreeSettings* settings,
OutputSurface* output_surface,
ResourceProvider* resource_provider);
virtual void DidChangeVisibility() OVERRIDE;
private:
void ClearCanvas(SkColor color);
void SetClipRect(const gfx::Rect& rect);
bool IsSoftwareResource(ResourceProvider::ResourceId resource_id) const;
void DrawCheckerboardQuad(const DrawingFrame* frame,
const CheckerboardDrawQuad* quad);
void DrawDebugBorderQuad(const DrawingFrame* frame,
const DebugBorderDrawQuad* quad);
void DrawPictureQuad(const DrawingFrame* frame,
const PictureDrawQuad* quad);
void DrawRenderPassQuad(const DrawingFrame* frame,
const RenderPassDrawQuad* quad);
void DrawSolidColorQuad(const DrawingFrame* frame,
const SolidColorDrawQuad* quad);
void DrawTextureQuad(const DrawingFrame* frame,
const TextureDrawQuad* quad);
void DrawTileQuad(const DrawingFrame* frame,
const TileDrawQuad* quad);
void DrawUnsupportedQuad(const DrawingFrame* frame,
const DrawQuad* quad);
RendererCapabilitiesImpl capabilities_;
bool is_scissor_enabled_;
bool is_backbuffer_discarded_;
gfx::Rect scissor_rect_;
SoftwareOutputDevice* output_device_;
SkCanvas* root_canvas_;
SkCanvas* current_canvas_;
SkPaint current_paint_;
scoped_ptr<ResourceProvider::ScopedWriteLockSoftware>
current_framebuffer_lock_;
scoped_ptr<SoftwareFrameData> current_frame_data_;
DISALLOW_COPY_AND_ASSIGN(SoftwareRenderer);
};
} // namespace cc
#endif // CC_OUTPUT_SOFTWARE_RENDERER_H_
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