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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"
#if ENABLE(WEBGL)
#include "WebGLCompressedTextureS3TC.h"
#include "WebGLRenderingContextBase.h"
#include <wtf/IsoMallocInlines.h>
namespace WebCore {
WTF_MAKE_ISO_ALLOCATED_IMPL(WebGLCompressedTextureS3TC);
WebGLCompressedTextureS3TC::WebGLCompressedTextureS3TC(WebGLRenderingContextBase& context)
: WebGLExtension(context)
{
auto* gcgl = context.graphicsContextGL();
gcgl->ensureExtensionEnabled("GL_EXT_texture_compression_dxt1");
gcgl->ensureExtensionEnabled("GL_ANGLE_texture_compression_dxt3");
gcgl->ensureExtensionEnabled("GL_ANGLE_texture_compression_dxt5");
context.addCompressedTextureFormat(GraphicsContextGL::COMPRESSED_RGB_S3TC_DXT1_EXT);
context.addCompressedTextureFormat(GraphicsContextGL::COMPRESSED_RGBA_S3TC_DXT1_EXT);
context.addCompressedTextureFormat(GraphicsContextGL::COMPRESSED_RGBA_S3TC_DXT3_EXT);
context.addCompressedTextureFormat(GraphicsContextGL::COMPRESSED_RGBA_S3TC_DXT5_EXT);
}
WebGLCompressedTextureS3TC::~WebGLCompressedTextureS3TC() = default;
WebGLExtension::ExtensionName WebGLCompressedTextureS3TC::getName() const
{
return WebGLCompressedTextureS3TCName;
}
bool WebGLCompressedTextureS3TC::supported(GraphicsContextGL& context)
{
#if USE(ANGLE)
return context.supportsExtension("GL_EXT_texture_compression_dxt1")
&& context.supportsExtension("GL_ANGLE_texture_compression_dxt3")
&& context.supportsExtension("GL_ANGLE_texture_compression_dxt5");
#else
return context.supportsExtension("GL_EXT_texture_compression_s3tc")
|| context.supportsExtension("GL_EXT_texture_compression_dxt1");
#endif
}
} // namespace WebCore
#endif // ENABLE(WEBGL)
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