Source/core/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: Discovered I was doing RefPtr's wrong while debugging 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 forciblyLoseOldestContext();

	328 static IntSize oldestContextSize();

	329

327 private:	330 private:

328 friend class EXTDrawBuffers;	331 friend class EXTDrawBuffers;

329 friend class WebGLFramebuffer;	332 friend class WebGLFramebuffer;

330 friend class WebGLObject;	333 friend class WebGLObject;

331 friend class OESVertexArrayObject;	334 friend class OESVertexArrayObject;

332 friend class WebGLDebugShaders;	335 friend class WebGLDebugShaders;

333 friend class WebGLCompressedTextureATC;	336 friend class WebGLCompressedTextureATC;

334 friend class WebGLCompressedTexturePVRTC;	337 friend class WebGLCompressedTexturePVRTC;

335 friend class WebGLCompressedTextureS3TC;	338 friend class WebGLCompressedTextureS3TC;

336 friend class WebGLRenderingContextErrorMessageCallback;	339 friend class WebGLRenderingContextErrorMessageCallback;

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775	778

776 void setBackDrawBuffer(GC3Denum);	779 void setBackDrawBuffer(GC3Denum);

777	780

778 void restoreCurrentFramebuffer();	781 void restoreCurrentFramebuffer();

779 void restoreCurrentTexture2D();	782 void restoreCurrentTexture2D();

780	783

781 // Check if EXT_draw_buffers extension is supported and if it satisfies the WebGL requirements.	784 // Check if EXT_draw_buffers extension is supported and if it satisfies the WebGL requirements.

782 bool supportsDrawBuffers();	785 bool supportsDrawBuffers();

783	786

784 friend class WebGLStateRestorer;	787 friend class WebGLStateRestorer;

	788

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

	790 static Vector<WebGLRenderingContext*>& forciblyEvictedContexts();

	791

	792 static void activateContext(WebGLRenderingContext*);

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

	794 static void willDestroyContext(WebGLRenderingContext*);

785 };	795 };

786	796

787 } // namespace WebCore	797 } // namespace WebCore

788	798

789 #endif	799 #endif

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