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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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39 #include "core/frame/Settings.h" | 39 #include "core/frame/Settings.h" |
40 #include "core/html/HTMLCanvasElement.h" | 40 #include "core/html/HTMLCanvasElement.h" |
41 #include "core/html/HTMLImageElement.h" | 41 #include "core/html/HTMLImageElement.h" |
42 #include "core/html/HTMLVideoElement.h" | 42 #include "core/html/HTMLVideoElement.h" |
43 #include "core/html/ImageData.h" | 43 #include "core/html/ImageData.h" |
44 #include "core/inspector/ConsoleMessage.h" | 44 #include "core/inspector/ConsoleMessage.h" |
45 #include "core/inspector/InspectorInstrumentation.h" | 45 #include "core/inspector/InspectorInstrumentation.h" |
46 #include "core/layout/LayoutBox.h" | 46 #include "core/layout/LayoutBox.h" |
47 #include "core/loader/FrameLoader.h" | 47 #include "core/loader/FrameLoader.h" |
48 #include "core/loader/FrameLoaderClient.h" | 48 #include "core/loader/FrameLoaderClient.h" |
| 49 #include "core/origin_trials/OriginTrials.h" |
49 #include "gpu/command_buffer/client/gles2_interface.h" | 50 #include "gpu/command_buffer/client/gles2_interface.h" |
50 #include "modules/webgl/ANGLEInstancedArrays.h" | 51 #include "modules/webgl/ANGLEInstancedArrays.h" |
51 #include "modules/webgl/EXTBlendMinMax.h" | 52 #include "modules/webgl/EXTBlendMinMax.h" |
52 #include "modules/webgl/EXTFragDepth.h" | 53 #include "modules/webgl/EXTFragDepth.h" |
53 #include "modules/webgl/EXTShaderTextureLOD.h" | 54 #include "modules/webgl/EXTShaderTextureLOD.h" |
54 #include "modules/webgl/EXTTextureFilterAnisotropic.h" | 55 #include "modules/webgl/EXTTextureFilterAnisotropic.h" |
55 #include "modules/webgl/GLStringQuery.h" | 56 #include "modules/webgl/GLStringQuery.h" |
56 #include "modules/webgl/OESElementIndexUint.h" | 57 #include "modules/webgl/OESElementIndexUint.h" |
57 #include "modules/webgl/OESStandardDerivatives.h" | 58 #include "modules/webgl/OESStandardDerivatives.h" |
58 #include "modules/webgl/OESTextureFloat.h" | 59 #include "modules/webgl/OESTextureFloat.h" |
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616 ScriptState* scriptState, | 617 ScriptState* scriptState, |
617 const CanvasContextCreationAttributes& attributes, | 618 const CanvasContextCreationAttributes& attributes, |
618 unsigned webGLVersion) { | 619 unsigned webGLVersion) { |
619 // Exactly one of these must be provided. | 620 // Exactly one of these must be provided. |
620 DCHECK_EQ(!canvas, !!scriptState); | 621 DCHECK_EQ(!canvas, !!scriptState); |
621 // The canvas is only given on the main thread. | 622 // The canvas is only given on the main thread. |
622 DCHECK(!canvas || isMainThread()); | 623 DCHECK(!canvas || isMainThread()); |
623 | 624 |
624 Platform::ContextAttributes contextAttributes = | 625 Platform::ContextAttributes contextAttributes = |
625 toPlatformContextAttributes(attributes, webGLVersion); | 626 toPlatformContextAttributes(attributes, webGLVersion); |
| 627 |
| 628 // If there's a possibility this context may be used with WebVR make sure it |
| 629 // is created with an offscreen surface that can be swapped out for a |
| 630 // VR-specific surface if needed. We can only check the origin trial |
| 631 // if called with a scriptState, not for a canvas. |
| 632 if (RuntimeEnabledFeatures::webVREnabled() || |
| 633 (scriptState && |
| 634 OriginTrials::webVREnabled(scriptState->getExecutionContext()))) { |
| 635 contextAttributes.supportOwnOffscreenSurface = true; |
| 636 } |
| 637 |
626 Platform::GraphicsInfo glInfo; | 638 Platform::GraphicsInfo glInfo; |
627 std::unique_ptr<WebGraphicsContext3DProvider> contextProvider; | 639 std::unique_ptr<WebGraphicsContext3DProvider> contextProvider; |
628 const auto& url = canvas ? canvas->document().topDocument().url() | 640 const auto& url = canvas ? canvas->document().topDocument().url() |
629 : scriptState->getExecutionContext()->url(); | 641 : scriptState->getExecutionContext()->url(); |
630 if (isMainThread()) { | 642 if (isMainThread()) { |
631 contextProvider = WTF::wrapUnique( | 643 contextProvider = WTF::wrapUnique( |
632 Platform::current()->createOffscreenGraphicsContext3DProvider( | 644 Platform::current()->createOffscreenGraphicsContext3DProvider( |
633 contextAttributes, url, 0, &glInfo)); | 645 contextAttributes, url, 0, &glInfo)); |
634 } else { | 646 } else { |
635 contextProvider = | 647 contextProvider = |
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7795 | 7807 |
7796 void WebGLRenderingContextBase::getHTMLOrOffscreenCanvas( | 7808 void WebGLRenderingContextBase::getHTMLOrOffscreenCanvas( |
7797 HTMLCanvasElementOrOffscreenCanvas& result) const { | 7809 HTMLCanvasElementOrOffscreenCanvas& result) const { |
7798 if (canvas()) | 7810 if (canvas()) |
7799 result.setHTMLCanvasElement(canvas()); | 7811 result.setHTMLCanvasElement(canvas()); |
7800 else | 7812 else |
7801 result.setOffscreenCanvas(offscreenCanvas()); | 7813 result.setOffscreenCanvas(offscreenCanvas()); |
7802 } | 7814 } |
7803 | 7815 |
7804 } // namespace blink | 7816 } // namespace blink |
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