third_party/WebKit/Source/modules/webgl/WebGLRenderingContextBase.h - Issue 1881563003: Implement OffscreenCanvas.getContext('webgl')

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Issue 1881563003: Implement OffscreenCanvas.getContext('webgl') (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: rebase and remove static_cast Created 4 years, 7 months ago

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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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145	145

146 virtual unsigned version() const = 0;	146 virtual unsigned version() const = 0;

147 virtual String contextName() const = 0;	147 virtual String contextName() const = 0;

148 virtual void registerContextExtensions() = 0;	148 virtual void registerContextExtensions() = 0;

149	149

150 virtual void initializeNewContext();	150 virtual void initializeNewContext();

151	151

152 static unsigned getWebGLVersion(const CanvasRenderingContext*);	152 static unsigned getWebGLVersion(const CanvasRenderingContext*);

153	153

154 static PassOwnPtr<WebGraphicsContext3DProvider> createWebGraphicsContext3DPr ovider(HTMLCanvasElement*, WebGLContextAttributes, unsigned webGLVersion);	154 static PassOwnPtr<WebGraphicsContext3DProvider> createWebGraphicsContext3DPr ovider(HTMLCanvasElement*, WebGLContextAttributes, unsigned webGLVersion);

	155 static PassOwnPtr<WebGraphicsContext3DProvider> createWebGraphicsContext3DPr ovider(ScriptState*, WebGLContextAttributes, unsigned webGLVersion);

155 static void forceNextWebGLContextCreationToFail();	156 static void forceNextWebGLContextCreationToFail();

156	157

157 int drawingBufferWidth() const;	158 int drawingBufferWidth() const;

158 int drawingBufferHeight() const;	159 int drawingBufferHeight() const;

159	160

160 void activeTexture(GLenum texture);	161 void activeTexture(GLenum texture);

161 void attachShader(ScriptState, WebGLProgram, WebGLShader*);	162 void attachShader(ScriptState, WebGLProgram, WebGLShader*);

162 void bindAttribLocation(WebGLProgram*, GLuint index, const String& name);	163 void bindAttribLocation(WebGLProgram*, GLuint index, const String& name);

163 void bindBuffer(ScriptState, GLenum target, WebGLBuffer);	164 void bindBuffer(ScriptState, GLenum target, WebGLBuffer);

164 virtual void bindFramebuffer(ScriptState, GLenum target, WebGLFramebuffer) ;	165 virtual void bindFramebuffer(ScriptState, GLenum target, WebGLFramebuffer) ;

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436 friend class WebGLCompressedTextureATC;	437 friend class WebGLCompressedTextureATC;

437 friend class WebGLCompressedTextureETC1;	438 friend class WebGLCompressedTextureETC1;

438 friend class WebGLCompressedTexturePVRTC;	439 friend class WebGLCompressedTexturePVRTC;

439 friend class WebGLCompressedTextureS3TC;	440 friend class WebGLCompressedTextureS3TC;

440 friend class WebGLRenderingContextErrorMessageCallback;	441 friend class WebGLRenderingContextErrorMessageCallback;

441 friend class WebGLVertexArrayObjectBase;	442 friend class WebGLVertexArrayObjectBase;

442 friend class ScopedTexture2DRestorer;	443 friend class ScopedTexture2DRestorer;

443 friend class ScopedFramebufferRestorer;	444 friend class ScopedFramebufferRestorer;

444	445

445 WebGLRenderingContextBase(HTMLCanvasElement*, PassOwnPtr<WebGraphicsContext3 DProvider>, const WebGLContextAttributes&);	446 WebGLRenderingContextBase(HTMLCanvasElement*, PassOwnPtr<WebGraphicsContext3 DProvider>, const WebGLContextAttributes&);

	447 WebGLRenderingContextBase(OffscreenCanvas*, PassOwnPtr<WebGraphicsContext3DP rovider>, const WebGLContextAttributes&);

446 PassRefPtr<DrawingBuffer> createDrawingBuffer(PassOwnPtr<WebGraphicsContext3 DProvider>);	448 PassRefPtr<DrawingBuffer> createDrawingBuffer(PassOwnPtr<WebGraphicsContext3 DProvider>);

447 void setupFlags();	449 void setupFlags();

448	450

449 // CanvasRenderingContext implementation.	451 // CanvasRenderingContext implementation.

450 bool is3d() const override { return true; }	452 bool is3d() const override { return true; }

451 bool isAccelerated() const override { return true; }	453 bool isAccelerated() const override { return true; }

452 void setIsHidden(bool) override;	454 void setIsHidden(bool) override;

453 bool paintRenderingResultsToCanvas(SourceDrawingBuffer) override;	455 bool paintRenderingResultsToCanvas(SourceDrawingBuffer) override;

454 WebLayer* platformLayer() const override;	456 WebLayer* platformLayer() const override;

455 void stop() override;	457 void stop() override;

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1067 static void addToEvictedList(WebGLRenderingContextBase*);	1069 static void addToEvictedList(WebGLRenderingContextBase*);

1068 static void removeFromEvictedList(WebGLRenderingContextBase*);	1070 static void removeFromEvictedList(WebGLRenderingContextBase*);

1069 static void willDestroyContext(WebGLRenderingContextBase*);	1071 static void willDestroyContext(WebGLRenderingContextBase*);

1070 static void forciblyLoseOldestContext(const String& reason);	1072 static void forciblyLoseOldestContext(const String& reason);

1071 // Return the least recently used context's position in the active context v ector.	1073 // Return the least recently used context's position in the active context v ector.

1072 // If the vector is empty, return the maximum allowed active context number.	1074 // If the vector is empty, return the maximum allowed active context number.

1073 static WebGLRenderingContextBase* oldestContext();	1075 static WebGLRenderingContextBase* oldestContext();

1074 static WebGLRenderingContextBase* oldestEvictedContext();	1076 static WebGLRenderingContextBase* oldestEvictedContext();

1075	1077

1076 CrossThreadWeakPersistentThisPointer<WebGLRenderingContextBase> createWeakTh isPointer() { return CrossThreadWeakPersistentThisPointer<WebGLRenderingContextB ase>(this); }	1078 CrossThreadWeakPersistentThisPointer<WebGLRenderingContextBase> createWeakTh isPointer() { return CrossThreadWeakPersistentThisPointer<WebGLRenderingContextB ase>(this); }

	1079

	1080 private:

	1081 WebGLRenderingContextBase(HTMLCanvasElement, OffscreenCanvas, PassOwnPtr<W ebGraphicsContext3DProvider>, const WebGLContextAttributes&);

1077 };	1082 };

1078	1083

1079 DEFINE_TYPE_CASTS(WebGLRenderingContextBase, CanvasRenderingContext, context, co ntext->is3d(), context.is3d());	1084 DEFINE_TYPE_CASTS(WebGLRenderingContextBase, CanvasRenderingContext, context, co ntext->is3d(), context.is3d());

1080	1085

1081 } // namespace blink	1086 } // namespace blink

1082	1087

1083 WTF_ALLOW_MOVE_INIT_AND_COMPARE_WITH_MEM_FUNCTIONS(blink::WebGLRenderingContextB ase::TextureUnitState);	1088 WTF_ALLOW_MOVE_INIT_AND_COMPARE_WITH_MEM_FUNCTIONS(blink::WebGLRenderingContextB ase::TextureUnitState);

1084	1089

1085 #endif // WebGLRenderingContextBase_h	1090 #endif // WebGLRenderingContextBase_h

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