/* * Copyright (c) 2010, Google Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef WebGLContextAttributes_h #define WebGLContextAttributes_h #include "bindings/v8/ScriptWrappable.h" #include "core/html/canvas/CanvasContextAttributes.h" #include "public/platform/WebGraphicsContext3D.h" #include "wtf/PassRefPtr.h" namespace WebCore { class Settings; class WebGLContextAttributes FINAL : public CanvasContextAttributes, public ScriptWrappable { public: virtual ~WebGLContextAttributes(); // Create a new attributes object static PassRefPtr<WebGLContextAttributes> create(); // Create a copy of this object. PassRefPtr<WebGLContextAttributes> clone() const; // Whether or not the drawing buffer has an alpha channel; default=true bool alpha() const; void setAlpha(bool); // Whether or not the drawing buffer has a depth buffer; default=true bool depth() const; void setDepth(bool); // Whether or not the drawing buffer has a stencil buffer; default=false bool stencil() const; void setStencil(bool); // Whether or not the drawing buffer is antialiased; default=true bool antialias() const; void setAntialias(bool); // Whether or not to treat the values in the drawing buffer as // though their alpha channel has already been multiplied into the // color channels; default=true bool premultipliedAlpha() const; void setPremultipliedAlpha(bool); // Whether or not to preserve the drawing buffer after presentation to the // screen; default=false bool preserveDrawingBuffer() const; void setPreserveDrawingBuffer(bool); // Whether or not to fail context creation if performance will be // significantly degraded compared to a native GL context; default=false bool failIfMajorPerformanceCaveat() const; void setFailIfMajorPerformanceCaveat(bool); // Set up the attributes that can be used to initialize a WebGraphicsContext3D. // It's mostly based on WebGLContextAttributes, but would be adjusted based // on settings. blink::WebGraphicsContext3D::Attributes attributes(const blink::WebString&, Settings*) const; protected: WebGLContextAttributes(); WebGLContextAttributes(const WebGLContextAttributes&); private: bool m_alpha; bool m_depth; bool m_stencil; bool m_antialias; bool m_premultipliedAlpha; bool m_preserveDrawingBuffer; bool m_failIfMajorPerformanceCaveat; }; } // namespace WebCore #endif // WebGLContextAttributes_h