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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/WebGLCompressedTexturePVRTC.h"
     29 
     30 #include "core/html/canvas/WebGLRenderingContextBase.h"
     31 
     32 namespace blink {
     33 
     34 WebGLCompressedTexturePVRTC::WebGLCompressedTexturePVRTC(WebGLRenderingContextBase* context)
     35     : WebGLExtension(context)
     36 {
     37     context->addCompressedTextureFormat(GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG);
     38     context->addCompressedTextureFormat(GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG);
     39     context->addCompressedTextureFormat(GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG);
     40     context->addCompressedTextureFormat(GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG);
     41 }
     42 
     43 WebGLCompressedTexturePVRTC::~WebGLCompressedTexturePVRTC()
     44 {
     45 }
     46 
     47 WebGLExtensionName WebGLCompressedTexturePVRTC::name() const
     48 {
     49     return WebGLCompressedTexturePVRTCName;
     50 }
     51 
     52 PassRefPtrWillBeRawPtr<WebGLCompressedTexturePVRTC> WebGLCompressedTexturePVRTC::create(WebGLRenderingContextBase* context)
     53 {
     54     return adoptRefWillBeNoop(new WebGLCompressedTexturePVRTC(context));
     55 }
     56 
     57 bool WebGLCompressedTexturePVRTC::supported(WebGLRenderingContextBase* context)
     58 {
     59     return context->extensionsUtil()->supportsExtension("GL_IMG_texture_compression_pvrtc");
     60 }
     61 
     62 const char* WebGLCompressedTexturePVRTC::extensionName()
     63 {
     64     return "WEBGL_compressed_texture_pvrtc";
     65 }
     66 
     67 } // namespace blink
     68