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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
      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/OESTextureFloat.h"
     29 
     30 namespace blink {
     31 
     32 OESTextureFloat::OESTextureFloat(WebGLRenderingContextBase* context)
     33     : WebGLExtension(context)
     34 {
     35     if (context->extensionsUtil()->ensureExtensionEnabled("GL_OES_texture_float")) {
     36         // Implicitly enable rendering to float textures
     37         context->extensionsUtil()->ensureExtensionEnabled("GL_CHROMIUM_color_buffer_float_rgba");
     38         context->extensionsUtil()->ensureExtensionEnabled("GL_CHROMIUM_color_buffer_float_rgb");
     39     }
     40 }
     41 
     42 OESTextureFloat::~OESTextureFloat()
     43 {
     44 }
     45 
     46 WebGLExtensionName OESTextureFloat::name() const
     47 {
     48     return OESTextureFloatName;
     49 }
     50 
     51 PassRefPtrWillBeRawPtr<OESTextureFloat> OESTextureFloat::create(WebGLRenderingContextBase* context)
     52 {
     53     return adoptRefWillBeNoop(new OESTextureFloat(context));
     54 }
     55 
     56 bool OESTextureFloat::supported(WebGLRenderingContextBase* context)
     57 {
     58     return context->extensionsUtil()->supportsExtension("GL_OES_texture_float");
     59 }
     60 
     61 const char* OESTextureFloat::extensionName()
     62 {
     63     return "OES_texture_float";
     64 }
     65 
     66 } // namespace blink
     67