Source/WebCore/html/canvas/EXTTextureCompressionRGTC.cpp

/*
 * Copyright (C) 2020 Google Inc. All rights reserved.
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 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
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#include "config.h"

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

#include <wtf/IsoMallocInlines.h>

namespace WebCore {

WTF_MAKE_ISO_ALLOCATED_IMPL(EXTTextureCompressionRGTC);

EXTTextureCompressionRGTC::EXTTextureCompressionRGTC(WebGLRenderingContextBase& context)
    : WebGLExtension(context)
{
    context.graphicsContextGL()->ensureExtensionEnabled("GL_EXT_texture_compression_rgtc"_s);

    context.addCompressedTextureFormat(GraphicsContextGL::COMPRESSED_RED_RGTC1_EXT);
    context.addCompressedTextureFormat(GraphicsContextGL::COMPRESSED_SIGNED_RED_RGTC1_EXT);
    context.addCompressedTextureFormat(GraphicsContextGL::COMPRESSED_RED_GREEN_RGTC2_EXT);
    context.addCompressedTextureFormat(GraphicsContextGL::COMPRESSED_SIGNED_RED_GREEN_RGTC2_EXT);
}

EXTTextureCompressionRGTC::~EXTTextureCompressionRGTC() = default;

WebGLExtension::ExtensionName EXTTextureCompressionRGTC::getName() const
{
    return EXTTextureCompressionRGTCName;
}

bool EXTTextureCompressionRGTC::supported(GraphicsContextGL& context)
{
    return context.supportsExtension("GL_EXT_texture_compression_rgtc"_s)
        || context.supportsExtension("GL_ARB_texture_compression_rgtc"_s);
}

} // namespace WebCore

#endif // ENABLE(WEBGL)