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| 1 /* | 1 /* | 
| 2  * Copyright (C) 2009 Apple Inc. All rights reserved. | 2  * Copyright (C) 2009 Apple Inc. All rights reserved. | 
| 3  * | 3  * | 
| 4  * Redistribution and use in source and binary forms, with or without | 4  * Redistribution and use in source and binary forms, with or without | 
| 5  * modification, are permitted provided that the following conditions | 5  * modification, are permitted provided that the following conditions | 
| 6  * are met: | 6  * are met: | 
| 7  * 1. Redistributions of source code must retain the above copyright | 7  * 1. Redistributions of source code must retain the above copyright | 
| 8  *    notice, this list of conditions and the following disclaimer. | 8  *    notice, this list of conditions and the following disclaimer. | 
| 9  * 2. Redistributions in binary form must reproduce the above copyright | 9  * 2. Redistributions in binary form must reproduce the above copyright | 
| 10  *    notice, this list of conditions and the following disclaimer in the | 10  *    notice, this list of conditions and the following disclaimer in the | 
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| 110     virtual ~WebGLRenderingContextBase(); | 110     virtual ~WebGLRenderingContextBase(); | 
| 111 | 111 | 
| 112     virtual unsigned version() const = 0; | 112     virtual unsigned version() const = 0; | 
| 113     virtual String contextName() const = 0; | 113     virtual String contextName() const = 0; | 
| 114     virtual void registerContextExtensions() = 0; | 114     virtual void registerContextExtensions() = 0; | 
| 115 | 115 | 
| 116     virtual void initializeNewContext(); | 116     virtual void initializeNewContext(); | 
| 117 | 117 | 
| 118     static unsigned getWebGLVersion(const CanvasRenderingContext*); | 118     static unsigned getWebGLVersion(const CanvasRenderingContext*); | 
| 119 | 119 | 
| 120     static PassOwnPtr<blink::WebGraphicsContext3D> createWebGraphicsContext3D(HT
      MLCanvasElement*, WebGLContextAttributes, unsigned webGLVersion); | 120     static PassOwnPtr<WebGraphicsContext3D> createWebGraphicsContext3D(HTMLCanva
      sElement*, WebGLContextAttributes, unsigned webGLVersion); | 
| 121     static void forceNextWebGLContextCreationToFail(); | 121     static void forceNextWebGLContextCreationToFail(); | 
| 122 | 122 | 
| 123     int drawingBufferWidth() const; | 123     int drawingBufferWidth() const; | 
| 124     int drawingBufferHeight() const; | 124     int drawingBufferHeight() const; | 
| 125 | 125 | 
| 126     void activeTexture(GLenum texture); | 126     void activeTexture(GLenum texture); | 
| 127     void attachShader(WebGLProgram*, WebGLShader*); | 127     void attachShader(WebGLProgram*, WebGLShader*); | 
| 128     void bindAttribLocation(WebGLProgram*, GLuint index, const String& name); | 128     void bindAttribLocation(WebGLProgram*, GLuint index, const String& name); | 
| 129     void bindBuffer(GLenum target, WebGLBuffer*); | 129     void bindBuffer(GLenum target, WebGLBuffer*); | 
| 130     virtual void bindFramebuffer(GLenum target, WebGLFramebuffer*); | 130     virtual void bindFramebuffer(GLenum target, WebGLFramebuffer*); | 
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| 344         // Restore when resources are available. | 344         // Restore when resources are available. | 
| 345         WhenAvailable, | 345         WhenAvailable, | 
| 346 | 346 | 
| 347         // Restore as soon as possible. | 347         // Restore as soon as possible. | 
| 348         Auto | 348         Auto | 
| 349     }; | 349     }; | 
| 350     void forceLostContext(LostContextMode, AutoRecoveryMethod); | 350     void forceLostContext(LostContextMode, AutoRecoveryMethod); | 
| 351     void forceRestoreContext(); | 351     void forceRestoreContext(); | 
| 352     void loseContextImpl(LostContextMode, AutoRecoveryMethod); | 352     void loseContextImpl(LostContextMode, AutoRecoveryMethod); | 
| 353 | 353 | 
| 354     blink::WebGraphicsContext3D* webContext() const { return drawingBuffer()->co
      ntext(); } | 354     WebGraphicsContext3D* webContext() const { return drawingBuffer()->context()
      ; } | 
| 355     WebGLContextGroup* contextGroup() const { return m_contextGroup.get(); } | 355     WebGLContextGroup* contextGroup() const { return m_contextGroup.get(); } | 
| 356     Extensions3DUtil* extensionsUtil(); | 356     Extensions3DUtil* extensionsUtil(); | 
| 357 | 357 | 
| 358     void reshape(int width, int height); | 358     void reshape(int width, int height); | 
| 359 | 359 | 
| 360     void markLayerComposited(); | 360     void markLayerComposited(); | 
| 361     PassRefPtrWillBeRawPtr<ImageData> paintRenderingResultsToImageData(SourceDra
      wingBuffer); | 361     PassRefPtrWillBeRawPtr<ImageData> paintRenderingResultsToImageData(SourceDra
      wingBuffer); | 
| 362 | 362 | 
| 363     void removeSharedObject(WebGLSharedObject*); | 363     void removeSharedObject(WebGLSharedObject*); | 
| 364     void removeContextObject(WebGLContextObject*); | 364     void removeContextObject(WebGLContextObject*); | 
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| 401     friend class WebGLDebugShaders; | 401     friend class WebGLDebugShaders; | 
| 402     friend class WebGLCompressedTextureATC; | 402     friend class WebGLCompressedTextureATC; | 
| 403     friend class WebGLCompressedTextureETC1; | 403     friend class WebGLCompressedTextureETC1; | 
| 404     friend class WebGLCompressedTexturePVRTC; | 404     friend class WebGLCompressedTexturePVRTC; | 
| 405     friend class WebGLCompressedTextureS3TC; | 405     friend class WebGLCompressedTextureS3TC; | 
| 406     friend class WebGLRenderingContextErrorMessageCallback; | 406     friend class WebGLRenderingContextErrorMessageCallback; | 
| 407     friend class WebGLVertexArrayObjectOES; | 407     friend class WebGLVertexArrayObjectOES; | 
| 408     friend class ScopedTexture2DRestorer; | 408     friend class ScopedTexture2DRestorer; | 
| 409     friend class ScopedFramebufferRestorer; | 409     friend class ScopedFramebufferRestorer; | 
| 410 | 410 | 
| 411     WebGLRenderingContextBase(HTMLCanvasElement*, PassOwnPtr<blink::WebGraphicsC
      ontext3D>, const WebGLContextAttributes&); | 411     WebGLRenderingContextBase(HTMLCanvasElement*, PassOwnPtr<WebGraphicsContext3
      D>, const WebGLContextAttributes&); | 
| 412     PassRefPtr<DrawingBuffer> createDrawingBuffer(PassOwnPtr<blink::WebGraphicsC
      ontext3D>); | 412     PassRefPtr<DrawingBuffer> createDrawingBuffer(PassOwnPtr<WebGraphicsContext3
      D>); | 
| 413     void setupFlags(); | 413     void setupFlags(); | 
| 414 | 414 | 
| 415 #if ENABLE(OILPAN) | 415 #if ENABLE(OILPAN) | 
| 416     PassRefPtr<WebGLSharedWebGraphicsContext3D> sharedWebGraphicsContext3D() con
      st; | 416     PassRefPtr<WebGLSharedWebGraphicsContext3D> sharedWebGraphicsContext3D() con
      st; | 
| 417 #endif | 417 #endif | 
| 418 | 418 | 
| 419     // CanvasRenderingContext implementation. | 419     // CanvasRenderingContext implementation. | 
| 420     virtual bool is3d() const override { return true; } | 420     virtual bool is3d() const override { return true; } | 
| 421     virtual bool isAccelerated() const override { return true; } | 421     virtual bool isAccelerated() const override { return true; } | 
| 422     virtual void setIsHidden(bool) override; | 422     virtual void setIsHidden(bool) override; | 
| 423     bool paintRenderingResultsToCanvas(SourceDrawingBuffer) override; | 423     bool paintRenderingResultsToCanvas(SourceDrawingBuffer) override; | 
| 424     virtual blink::WebLayer* platformLayer() const override; | 424     virtual WebLayer* platformLayer() const override; | 
| 425     void stop() override; | 425     void stop() override; | 
| 426 | 426 | 
| 427     bool isWebGL2OrHigher() { return version() >= 2; } | 427     bool isWebGL2OrHigher() { return version() >= 2; } | 
| 428 | 428 | 
| 429     void addSharedObject(WebGLSharedObject*); | 429     void addSharedObject(WebGLSharedObject*); | 
| 430     void addContextObject(WebGLContextObject*); | 430     void addContextObject(WebGLContextObject*); | 
| 431     void detachAndRemoveAllObjects(); | 431     void detachAndRemoveAllObjects(); | 
| 432 | 432 | 
| 433     void destroyContext(); | 433     void destroyContext(); | 
| 434     void markContextChanged(ContentChangeType); | 434     void markContextChanged(ContentChangeType); | 
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| 1007     static IntSize oldestContextSize(); | 1007     static IntSize oldestContextSize(); | 
| 1008 }; | 1008 }; | 
| 1009 | 1009 | 
| 1010 DEFINE_TYPE_CASTS(WebGLRenderingContextBase, CanvasRenderingContext, context, co
      ntext->is3d(), context.is3d()); | 1010 DEFINE_TYPE_CASTS(WebGLRenderingContextBase, CanvasRenderingContext, context, co
      ntext->is3d(), context.is3d()); | 
| 1011 | 1011 | 
| 1012 } // namespace blink | 1012 } // namespace blink | 
| 1013 | 1013 | 
| 1014 WTF_ALLOW_MOVE_INIT_AND_COMPARE_WITH_MEM_FUNCTIONS(blink::WebGLRenderingContextB
      ase::TextureUnitState); | 1014 WTF_ALLOW_MOVE_INIT_AND_COMPARE_WITH_MEM_FUNCTIONS(blink::WebGLRenderingContextB
      ase::TextureUnitState); | 
| 1015 | 1015 | 
| 1016 #endif // WebGLRenderingContextBase_h | 1016 #endif // WebGLRenderingContextBase_h | 
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