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      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/WebGLCompressedTextureATC.h"
     29 
     30 namespace blink {
     31 
     32 WebGLCompressedTextureATC::WebGLCompressedTextureATC(WebGLRenderingContextBase* context)
     33     : WebGLExtension(context)
     34 {
     35     context->addCompressedTextureFormat(GC3D_COMPRESSED_ATC_RGB_AMD);
     36     context->addCompressedTextureFormat(GC3D_COMPRESSED_ATC_RGBA_EXPLICIT_ALPHA_AMD);
     37     context->addCompressedTextureFormat(GC3D_COMPRESSED_ATC_RGBA_INTERPOLATED_ALPHA_AMD);
     38 }
     39 
     40 WebGLCompressedTextureATC::~WebGLCompressedTextureATC()
     41 {
     42 }
     43 
     44 WebGLExtensionName WebGLCompressedTextureATC::name() const
     45 {
     46     return WebGLCompressedTextureATCName;
     47 }
     48 
     49 PassRefPtrWillBeRawPtr<WebGLCompressedTextureATC> WebGLCompressedTextureATC::create(WebGLRenderingContextBase* context)
     50 {
     51     return adoptRefWillBeNoop(new WebGLCompressedTextureATC(context));
     52 }
     53 
     54 bool WebGLCompressedTextureATC::supported(WebGLRenderingContextBase* context)
     55 {
     56     return context->extensionsUtil()->supportsExtension("GL_AMD_compressed_ATC_texture");
     57 }
     58 
     59 const char* WebGLCompressedTextureATC::extensionName()
     60 {
     61     return "WEBGL_compressed_texture_atc";
     62 }
     63 
     64 } // namespace blink
     65