Source/WebCore/html/canvas/WebGLCompressedTextureS3TCsRGB.cpp

/*
 * Copyright (C) 2020 Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
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 *
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 * 2.  Redistributions in binary form must reproduce the above copyright
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 *
 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
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 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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#include "config.h"

#if ENABLE(WEBGL)
#include "WebGLCompressedTextureS3TCsRGB.h"

#include "ExtensionsGL.h"
#include "WebGLRenderingContextBase.h"
#include <wtf/IsoMallocInlines.h>

namespace WebCore {

WTF_MAKE_ISO_ALLOCATED_IMPL(WebGLCompressedTextureS3TCsRGB);

WebGLCompressedTextureS3TCsRGB::WebGLCompressedTextureS3TCsRGB(WebGLRenderingContextBase& context)
    : WebGLExtension(context)
{
    auto& extensions = context.graphicsContextGL()->getExtensions();
    extensions.ensureEnabled("GL_EXT_texture_compression_s3tc_srgb");

    context.addCompressedTextureFormat(ExtensionsGL::COMPRESSED_SRGB_S3TC_DXT1_EXT);
    context.addCompressedTextureFormat(ExtensionsGL::COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT);
    context.addCompressedTextureFormat(ExtensionsGL::COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT);
    context.addCompressedTextureFormat(ExtensionsGL::COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT);
}

WebGLCompressedTextureS3TCsRGB::~WebGLCompressedTextureS3TCsRGB() = default;

WebGLExtension::ExtensionName WebGLCompressedTextureS3TCsRGB::getName() const
{
    return WebGLCompressedTextureS3TCsRGBName;
}

bool WebGLCompressedTextureS3TCsRGB::supported(WebGLRenderingContextBase& context)
{
    auto& extensions = context.graphicsContextGL()->getExtensions();
    return extensions.supports("GL_EXT_texture_compression_s3tc_srgb");
}

} // namespace WebCore

#endif // ENABLE(WEBGL)