Source/WebCore/html/canvas/WebGLRenderingContext.h - Issue 14217005: Limit the number of WebGL contexts that are active at any given time

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Issue 14217005: Limit the number of WebGL contexts that are active at any given time (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master

Patch Set: Created 7 years, 8 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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317	317

318 void removeSharedObject(WebGLSharedObject*);	318 void removeSharedObject(WebGLSharedObject*);

319 void removeContextObject(WebGLContextObject*);	319 void removeContextObject(WebGLContextObject*);

320	320

321 unsigned getMaxVertexAttribs() const { return m_maxVertexAttribs; }	321 unsigned getMaxVertexAttribs() const { return m_maxVertexAttribs; }

322	322

323 // ActiveDOMObject notifications	323 // ActiveDOMObject notifications

324 virtual bool hasPendingActivity() const;	324 virtual bool hasPendingActivity() const;

325 virtual void stop();	325 virtual void stop();

326	326

	327 static void forceLostOldestContext();
	Ken Russell (switch to Gerrit) 2013/04/16 02:57:52 The naming convention is getting confusing; I sugg The naming convention is getting confusing; I suggest "forciblyLoseOldestContext" for this, even though it doesn't quite match the other related methods (which could perhaps be renamed).
	328

327 private:	329 private:

328 friend class EXTDrawBuffers;	330 friend class EXTDrawBuffers;

329 friend class WebGLFramebuffer;	331 friend class WebGLFramebuffer;

330 friend class WebGLObject;	332 friend class WebGLObject;

331 friend class OESVertexArrayObject;	333 friend class OESVertexArrayObject;

332 friend class WebGLDebugShaders;	334 friend class WebGLDebugShaders;

333 friend class WebGLCompressedTextureATC;	335 friend class WebGLCompressedTextureATC;

334 friend class WebGLCompressedTexturePVRTC;	336 friend class WebGLCompressedTexturePVRTC;

335 friend class WebGLCompressedTextureS3TC;	337 friend class WebGLCompressedTextureS3TC;

336 friend class WebGLRenderingContextErrorMessageCallback;	338 friend class WebGLRenderingContextErrorMessageCallback;

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775	777

776 void setBackDrawBuffer(GC3Denum);	778 void setBackDrawBuffer(GC3Denum);

777	779

778 void restoreCurrentFramebuffer();	780 void restoreCurrentFramebuffer();

779 void restoreCurrentTexture2D();	781 void restoreCurrentTexture2D();

780	782

781 // Check if EXT_draw_buffers extension is supported and if it satisfies the WebGL requirements.	783 // Check if EXT_draw_buffers extension is supported and if it satisfies the WebGL requirements.

782 bool supportsDrawBuffers();	784 bool supportsDrawBuffers();

783	785

784 friend class WebGLStateRestorer;	786 friend class WebGLStateRestorer;

	787

	788 static Vector<WebGLRenderingContext*>& activeContexts();

	789 static Vector<WebGLRenderingContext*>& inactiveContexts();

	790

	791 static void activateContext(WebGLRenderingContext*);

	792 static void deactivateContext(WebGLRenderingContext*, bool addToInactiveList );

	793 static void removeContext(WebGLRenderingContext*);
	Ken Russell (switch to Gerrit) 2013/04/16 02:57:52 "removeContext" is too generic a name. "willDestro "removeContext" is too generic a name. "willDestroyContext" might be better.
785 };	794 };

786	795

787 } // namespace WebCore	796 } // namespace WebCore

788	797

789 #endif	798 #endif

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