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/*
* Copyright (C) 2011 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:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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 APPLE AND ITS 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 APPLE OR ITS 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.
*/
#include "config.h"
#include "core/html/canvas/WebGLCompressedTextureS3TC.h"
#include "core/html/canvas/WebGLRenderingContextBase.h"
namespace blink {
WebGLCompressedTextureS3TC::WebGLCompressedTextureS3TC(WebGLRenderingContextBase* context)
: WebGLExtension(context)
{
context->addCompressedTextureFormat(GL_COMPRESSED_RGB_S3TC_DXT1_EXT);
context->addCompressedTextureFormat(GL_COMPRESSED_RGBA_S3TC_DXT1_EXT);
context->addCompressedTextureFormat(GL_COMPRESSED_RGBA_S3TC_DXT3_EXT);
context->addCompressedTextureFormat(GL_COMPRESSED_RGBA_S3TC_DXT5_EXT);
}
WebGLCompressedTextureS3TC::~WebGLCompressedTextureS3TC()
{
}
WebGLExtensionName WebGLCompressedTextureS3TC::name() const
{
return WebGLCompressedTextureS3TCName;
}
PassRefPtrWillBeRawPtr<WebGLCompressedTextureS3TC> WebGLCompressedTextureS3TC::create(WebGLRenderingContextBase* context)
{
return adoptRefWillBeNoop(new WebGLCompressedTextureS3TC(context));
}
bool WebGLCompressedTextureS3TC::supported(WebGLRenderingContextBase* context)
{
Extensions3DUtil* extensionsUtil = context->extensionsUtil();
return extensionsUtil->supportsExtension("GL_EXT_texture_compression_s3tc")
|| (extensionsUtil->supportsExtension("GL_EXT_texture_compression_dxt1")
&& extensionsUtil->supportsExtension("GL_CHROMIUM_texture_compression_dxt3")
&& extensionsUtil->supportsExtension("GL_CHROMIUM_texture_compression_dxt5"));
}
const char* WebGLCompressedTextureS3TC::extensionName()
{
return "WEBGL_compressed_texture_s3tc";
}
} // namespace blink
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