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| 1 /* | |
| 2 * Copyright (c) 2010, Google Inc. All rights reserved. | |
| 3 * | |
| 4 * Redistribution and use in source and binary forms, with or without | |
| 5 * modification, are permitted provided that the following conditions are | |
| 6 * met: | |
| 7 * * Redistributions of source code must retain the above copyright | |
| 8 * notice, this list of conditions and the following disclaimer. | |
| 9 * * Redistributions in binary form must reproduce the above | |
| 10 * copyright notice, this list of conditions and the following disclaimer | |
| 11 * in the documentation and/or other materials provided with the | |
| 12 * distribution. | |
| 13 * | |
| 14 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 15 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 16 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 17 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 18 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 19 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 20 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 25 */ | |
| 26 | |
| 27 #ifndef WebGLContextAttributes_h | |
| 28 #define WebGLContextAttributes_h | |
| 29 | |
| 30 #include "bindings/core/v8/ScriptWrappable.h" | |
| 31 #include "core/html/canvas/CanvasContextAttributes.h" | |
| 32 #include "public/platform/WebGraphicsContext3D.h" | |
| 33 #include "wtf/PassRefPtr.h" | |
| 34 | |
| 35 namespace blink { | |
| 36 | |
| 37 class Settings; | |
| 38 | |
| 39 class WebGLContextAttributes final : public CanvasContextAttributes, public Scri
ptWrappable { | |
| 40 DECLARE_EMPTY_VIRTUAL_DESTRUCTOR_WILL_BE_REMOVED(WebGLContextAttributes); | |
| 41 DEFINE_WRAPPERTYPEINFO(); | |
| 42 public: | |
| 43 // Create a new attributes object | |
| 44 static PassRefPtrWillBeRawPtr<WebGLContextAttributes> create(); | |
| 45 | |
| 46 // Create a copy of this object. | |
| 47 PassRefPtrWillBeRawPtr<WebGLContextAttributes> clone() const; | |
| 48 | |
| 49 // Whether or not the drawing buffer has an alpha channel; default=true | |
| 50 bool alpha() const; | |
| 51 void setAlpha(bool); | |
| 52 | |
| 53 // Whether or not the drawing buffer has a depth buffer; default=true | |
| 54 bool depth() const; | |
| 55 void setDepth(bool); | |
| 56 | |
| 57 // Whether or not the drawing buffer has a stencil buffer; default=false | |
| 58 bool stencil() const; | |
| 59 void setStencil(bool); | |
| 60 | |
| 61 // Whether or not the drawing buffer is antialiased; default=true | |
| 62 bool antialias() const; | |
| 63 void setAntialias(bool); | |
| 64 | |
| 65 // Whether or not to treat the values in the drawing buffer as | |
| 66 // though their alpha channel has already been multiplied into the | |
| 67 // color channels; default=true | |
| 68 bool premultipliedAlpha() const; | |
| 69 void setPremultipliedAlpha(bool); | |
| 70 | |
| 71 // Whether or not to preserve the drawing buffer after presentation to the | |
| 72 // screen; default=false | |
| 73 bool preserveDrawingBuffer() const; | |
| 74 void setPreserveDrawingBuffer(bool); | |
| 75 | |
| 76 // Whether or not to fail context creation if performance will be | |
| 77 // significantly degraded compared to a native GL context; default=false | |
| 78 bool failIfMajorPerformanceCaveat() const; | |
| 79 void setFailIfMajorPerformanceCaveat(bool); | |
| 80 | |
| 81 // Set up the attributes that can be used to initialize a WebGraphicsContext
3D. | |
| 82 // It's mostly based on WebGLContextAttributes, but would be adjusted based | |
| 83 // on settings. | |
| 84 blink::WebGraphicsContext3D::Attributes attributes(const blink::WebString&,
Settings*, unsigned webGLVersion) const; | |
| 85 | |
| 86 protected: | |
| 87 WebGLContextAttributes(); | |
| 88 WebGLContextAttributes(const WebGLContextAttributes&); | |
| 89 | |
| 90 private: | |
| 91 bool m_alpha; | |
| 92 bool m_depth; | |
| 93 bool m_stencil; | |
| 94 bool m_antialias; | |
| 95 bool m_premultipliedAlpha; | |
| 96 bool m_preserveDrawingBuffer; | |
| 97 bool m_failIfMajorPerformanceCaveat; | |
| 98 }; | |
| 99 | |
| 100 } // namespace blink | |
| 101 | |
| 102 #endif // WebGLContextAttributes_h | |
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Chromium Code Reviews
Issue 795833004:
Use dictionaries for context creation attributes. Eliminate custom bindings. (Closed)
Base URL: svn://svn.chromium.org/blink/trunk