1 /* 2 * Copyright (C) 2013 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 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 17 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 18 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 20 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 21 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #include "config.h" 27 28 #include "core/html/canvas/EXTFragDepth.h" 29 30 #include "core/platform/graphics/Extensions3D.h" 31 32 namespace WebCore { 33 34 EXTFragDepth::EXTFragDepth(WebGLRenderingContext* context) 35 : WebGLExtension(context) 36 { 37 ScriptWrappable::init(this); 38 context->graphicsContext3D()->getExtensions()->ensureEnabled("GL_EXT_frag_depth"); 39 } 40 41 EXTFragDepth::~EXTFragDepth() 42 { 43 } 44 45 WebGLExtension::ExtensionName EXTFragDepth::getName() const 46 { 47 return EXTFragDepthName; 48 } 49 50 PassRefPtr<EXTFragDepth> EXTFragDepth::create(WebGLRenderingContext* context) 51 { 52 return adoptRef(new EXTFragDepth(context)); 53 } 54 55 bool EXTFragDepth::supported(WebGLRenderingContext* context) 56 { 57 Extensions3D* extensions = context->graphicsContext3D()->getExtensions(); 58 return extensions->supports("GL_EXT_frag_depth"); 59 } 60 61 const char* EXTFragDepth::getExtensionName() 62 { 63 return "EXT_frag_depth"; 64 } 65 66 } // namespace WebCore 67