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/*
* Copyright (C) 2010 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef LayerRendererChromium_h
#define LayerRendererChromium_h
#if USE(ACCELERATED_COMPOSITING)
#include "CCCheckerboardDrawQuad.h"
#include "CCDebugBorderDrawQuad.h"
#include "CCDirectRenderer.h"
#include "CCIOSurfaceDrawQuad.h"
#include "CCRenderPassDrawQuad.h"
#include "CCRenderer.h"
#include "CCSolidColorDrawQuad.h"
#include "CCStreamVideoDrawQuad.h"
#include "CCTextureDrawQuad.h"
#include "CCTileDrawQuad.h"
#include "CCYUVVideoDrawQuad.h"
#include "Extensions3DChromium.h"
#include "TextureCopier.h"
#include <wtf/PassOwnPtr.h>
namespace WebKit {
class WebGraphicsContext3D;
}
namespace WebCore {
class CCScopedTexture;
class GeometryBinding;
class ScopedEnsureFramebufferAllocation;
// Class that handles drawing of composited render layers using GL.
class LayerRendererChromium : public CCDirectRenderer,
public WebKit::WebGraphicsContext3D::WebGraphicsSwapBuffersCompleteCallbackCHROMIUM,
public WebKit::WebGraphicsContext3D::WebGraphicsMemoryAllocationChangedCallbackCHROMIUM ,
public WebKit::WebGraphicsContext3D::WebGraphicsContextLostCallback {
WTF_MAKE_NONCOPYABLE(LayerRendererChromium);
public:
static PassOwnPtr<LayerRendererChromium> create(CCRendererClient*, CCResourceProvider*, TextureUploaderOption);
virtual ~LayerRendererChromium();
virtual const LayerRendererCapabilities& capabilities() const OVERRIDE { return m_capabilities; }
WebKit::WebGraphicsContext3D* context();
virtual void viewportChanged() OVERRIDE;
const FloatQuad& sharedGeometryQuad() const { return m_sharedGeometryQuad; }
// waits for rendering to finish
virtual void finish() OVERRIDE;
virtual void doNoOp() OVERRIDE;
// puts backbuffer onscreen
virtual bool swapBuffers() OVERRIDE;
static void debugGLCall(WebKit::WebGraphicsContext3D*, const char* command, const char* file, int line);
const GeometryBinding* sharedGeometry() const { return m_sharedGeometry.get(); }
virtual void getFramebufferPixels(void *pixels, const IntRect&) OVERRIDE;
bool getFramebufferTexture(CCScopedTexture*, const IntRect& deviceRect);
virtual TextureCopier* textureCopier() const OVERRIDE { return m_textureCopier.get(); }
virtual TextureUploader* textureUploader() const OVERRIDE { return m_textureUploader.get(); }
virtual bool isContextLost() OVERRIDE;
virtual void setVisible(bool) OVERRIDE;
protected:
LayerRendererChromium(CCRendererClient*, CCResourceProvider*, TextureUploaderOption);
bool isFramebufferDiscarded() const { return m_isFramebufferDiscarded; }
bool initialize();
void releaseRenderPassTextures();
virtual void bindFramebufferToOutputSurface(DrawingFrame&) OVERRIDE;
virtual bool bindFramebufferToTexture(DrawingFrame&, const CCScopedTexture*, const IntRect& framebufferRect) OVERRIDE;
virtual void setDrawViewportSize(const IntSize&) OVERRIDE;
virtual void enableScissorTestRect(const IntRect& scissorRect) OVERRIDE;
virtual void disableScissorTest() OVERRIDE;
virtual void clearFramebuffer(DrawingFrame&) OVERRIDE;
virtual void drawQuad(DrawingFrame&, const CCDrawQuad*) OVERRIDE;
virtual void beginDrawingFrame(DrawingFrame&) OVERRIDE;
virtual void finishDrawingFrame(DrawingFrame&) OVERRIDE;
private:
static void toGLMatrix(float*, const WebKit::WebTransformationMatrix&);
void drawCheckerboardQuad(const DrawingFrame&, const CCCheckerboardDrawQuad*);
void drawDebugBorderQuad(const DrawingFrame&, const CCDebugBorderDrawQuad*);
PassOwnPtr<CCScopedTexture> drawBackgroundFilters(DrawingFrame&, const CCRenderPassDrawQuad*, const WebKit::WebFilterOperations&, const WebKit::WebTransformationMatrix& deviceTransform);
void drawRenderPassQuad(DrawingFrame&, const CCRenderPassDrawQuad*);
void drawSolidColorQuad(const DrawingFrame&, const CCSolidColorDrawQuad*);
void drawStreamVideoQuad(const DrawingFrame&, const CCStreamVideoDrawQuad*);
void drawTextureQuad(const DrawingFrame&, const CCTextureDrawQuad*);
void drawIOSurfaceQuad(const DrawingFrame&, const CCIOSurfaceDrawQuad*);
void drawTileQuad(const DrawingFrame&, const CCTileDrawQuad*);
void drawYUVVideoQuad(const DrawingFrame&, const CCYUVVideoDrawQuad*);
void setShaderOpacity(float opacity, int alphaLocation);
void setShaderFloatQuad(const FloatQuad&, int quadLocation);
void drawQuadGeometry(const DrawingFrame&, const WebKit::WebTransformationMatrix& drawTransform, const FloatRect& quadRect, int matrixLocation);
void copyTextureToFramebuffer(const DrawingFrame&, int textureId, const IntRect&, const WebKit::WebTransformationMatrix& drawMatrix);
bool useScopedTexture(DrawingFrame&, const CCScopedTexture*, const IntRect& viewportRect);
bool makeContextCurrent();
bool initializeSharedObjects();
void cleanupSharedObjects();
// WebKit::WebGraphicsContext3D::WebGraphicsSwapBuffersCompleteCallbackCHROMIUM implementation.
virtual void onSwapBuffersComplete() OVERRIDE;
// WebKit::WebGraphicsContext3D::WebGraphicsMemoryAllocationChangedCallbackCHROMIUM implementation.
virtual void onMemoryAllocationChanged(WebKit::WebGraphicsMemoryAllocation) OVERRIDE;
void onMemoryAllocationChangedOnImplThread(WebKit::WebGraphicsMemoryAllocation);
void discardFramebuffer();
void ensureFramebuffer();
// WebGraphicsContext3D::WebGraphicsContextLostCallback implementation.
virtual void onContextLost() OVERRIDE;
LayerRendererCapabilities m_capabilities;
unsigned m_offscreenFramebufferId;
OwnPtr<GeometryBinding> m_sharedGeometry;
FloatQuad m_sharedGeometryQuad;
// This block of bindings defines all of the programs used by the compositor itself.
// Tiled layer shaders.
typedef ProgramBinding<VertexShaderTile, FragmentShaderRGBATexAlpha> TileProgram;
typedef ProgramBinding<VertexShaderTile, FragmentShaderRGBATexClampAlphaAA> TileProgramAA;
typedef ProgramBinding<VertexShaderTile, FragmentShaderRGBATexClampSwizzleAlphaAA> TileProgramSwizzleAA;
typedef ProgramBinding<VertexShaderTile, FragmentShaderRGBATexOpaque> TileProgramOpaque;
typedef ProgramBinding<VertexShaderTile, FragmentShaderRGBATexSwizzleAlpha> TileProgramSwizzle;
typedef ProgramBinding<VertexShaderTile, FragmentShaderRGBATexSwizzleOpaque> TileProgramSwizzleOpaque;
typedef ProgramBinding<VertexShaderPosTex, FragmentShaderCheckerboard> TileCheckerboardProgram;
// Render surface shaders.
typedef ProgramBinding<VertexShaderPosTex, FragmentShaderRGBATexAlpha> RenderPassProgram;
typedef ProgramBinding<VertexShaderPosTex, FragmentShaderRGBATexAlphaMask> RenderPassMaskProgram;
typedef ProgramBinding<VertexShaderQuad, FragmentShaderRGBATexAlphaAA> RenderPassProgramAA;
typedef ProgramBinding<VertexShaderQuad, FragmentShaderRGBATexAlphaMaskAA> RenderPassMaskProgramAA;
// Texture shaders.
typedef ProgramBinding<VertexShaderPosTexTransform, FragmentShaderRGBATexAlpha> TextureProgram;
typedef ProgramBinding<VertexShaderPosTexTransform, FragmentShaderRGBATexFlipAlpha> TextureProgramFlip;
typedef ProgramBinding<VertexShaderPosTexTransform, FragmentShaderRGBATexRectAlpha> TextureIOSurfaceProgram;
// Video shaders.
typedef ProgramBinding<VertexShaderVideoTransform, FragmentShaderOESImageExternal> VideoStreamTextureProgram;
typedef ProgramBinding<VertexShaderPosTexYUVStretch, FragmentShaderYUVVideo> VideoYUVProgram;
// Special purpose / effects shaders.
typedef ProgramBinding<VertexShaderPos, FragmentShaderColor> SolidColorProgram;
const TileProgram* tileProgram();
const TileProgramOpaque* tileProgramOpaque();
const TileProgramAA* tileProgramAA();
const TileProgramSwizzle* tileProgramSwizzle();
const TileProgramSwizzleOpaque* tileProgramSwizzleOpaque();
const TileProgramSwizzleAA* tileProgramSwizzleAA();
const TileCheckerboardProgram* tileCheckerboardProgram();
const RenderPassProgram* renderPassProgram();
const RenderPassProgramAA* renderPassProgramAA();
const RenderPassMaskProgram* renderPassMaskProgram();
const RenderPassMaskProgramAA* renderPassMaskProgramAA();
const TextureProgram* textureProgram();
const TextureProgramFlip* textureProgramFlip();
const TextureIOSurfaceProgram* textureIOSurfaceProgram();
const VideoYUVProgram* videoYUVProgram();
const VideoStreamTextureProgram* videoStreamTextureProgram();
const SolidColorProgram* solidColorProgram();
OwnPtr<TileProgram> m_tileProgram;
OwnPtr<TileProgramOpaque> m_tileProgramOpaque;
OwnPtr<TileProgramAA> m_tileProgramAA;
OwnPtr<TileProgramSwizzle> m_tileProgramSwizzle;
OwnPtr<TileProgramSwizzleOpaque> m_tileProgramSwizzleOpaque;
OwnPtr<TileProgramSwizzleAA> m_tileProgramSwizzleAA;
OwnPtr<TileCheckerboardProgram> m_tileCheckerboardProgram;
OwnPtr<RenderPassProgram> m_renderPassProgram;
OwnPtr<RenderPassProgramAA> m_renderPassProgramAA;
OwnPtr<RenderPassMaskProgram> m_renderPassMaskProgram;
OwnPtr<RenderPassMaskProgramAA> m_renderPassMaskProgramAA;
OwnPtr<TextureProgram> m_textureProgram;
OwnPtr<TextureProgramFlip> m_textureProgramFlip;
OwnPtr<TextureIOSurfaceProgram> m_textureIOSurfaceProgram;
OwnPtr<VideoYUVProgram> m_videoYUVProgram;
OwnPtr<VideoStreamTextureProgram> m_videoStreamTextureProgram;
OwnPtr<SolidColorProgram> m_solidColorProgram;
OwnPtr<AcceleratedTextureCopier> m_textureCopier;
OwnPtr<TextureUploader> m_textureUploader;
WebKit::WebGraphicsContext3D* m_context;
IntRect m_swapBufferRect;
bool m_isViewportChanged;
bool m_isFramebufferDiscarded;
bool m_isUsingBindUniform;
bool m_visible;
TextureUploaderOption m_textureUploaderSetting;
OwnPtr<CCResourceProvider::ScopedWriteLockGL> m_currentFramebufferLock;
};
// Setting DEBUG_GL_CALLS to 1 will call glGetError() after almost every GL
// call made by the compositor. Useful for debugging rendering issues but
// will significantly degrade performance.
#define DEBUG_GL_CALLS 0
#if DEBUG_GL_CALLS && !defined ( NDEBUG )
#define GLC(context, x) (x, LayerRendererChromium::debugGLCall(&*context, #x, __FILE__, __LINE__))
#else
#define GLC(context, x) (x)
#endif
}
#endif // USE(ACCELERATED_COMPOSITING)
#endif
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