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/*
* Copyright (C) 2017-2020 Apple 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 INC. ``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 INC. OR
* 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 "UTIRegistry.h"
#if USE(CG)
#include "ImageSourceCG.h"
#include "MIMETypeRegistry.h"
#include <ImageIO/ImageIO.h>
#include <wtf/HashSet.h>
#include <wtf/NeverDestroyed.h>
#include <wtf/RobinHoodHashSet.h>
namespace WebCore {
const MemoryCompactLookupOnlyRobinHoodHashSet<String>& defaultSupportedImageTypes()
{
static NeverDestroyed defaultSupportedImageTypes = [] {
static constexpr std::array defaultSupportedImageTypes = {
"com.compuserve.gif"_s,
"com.microsoft.bmp"_s,
"com.microsoft.cur"_s,
"com.microsoft.ico"_s,
"public.jpeg"_s,
"public.png"_s,
"public.tiff"_s,
#if !PLATFORM(WIN)
"public.jpeg-2000"_s,
"public.mpo-image"_s,
#endif
#if HAVE(WEBP)
"public.webp"_s,
"com.google.webp"_s,
"org.webmproject.webp"_s,
#endif
};
auto systemSupportedCFImageTypes = adoptCF(CGImageSourceCopyTypeIdentifiers());
CFIndex count = CFArrayGetCount(systemSupportedCFImageTypes.get());
HashSet<String> systemSupportedImageTypes;
CFArrayApplyFunction(systemSupportedCFImageTypes.get(), CFRangeMake(0, count), [](const void *value, void *context) {
String imageType = static_cast<CFStringRef>(value);
static_cast<HashSet<String>*>(context)->add(imageType);
}, &systemSupportedImageTypes);
MemoryCompactLookupOnlyRobinHoodHashSet<String> filtered;
for (auto& imageType : defaultSupportedImageTypes) {
if (systemSupportedImageTypes.contains(imageType))
filtered.add(imageType);
}
return filtered;
}();
return defaultSupportedImageTypes;
}
MemoryCompactRobinHoodHashSet<String>& additionalSupportedImageTypes()
{
static NeverDestroyed<MemoryCompactRobinHoodHashSet<String>> additionalSupportedImageTypes;
return additionalSupportedImageTypes;
}
void setAdditionalSupportedImageTypes(const Vector<String>& imageTypes)
{
MIMETypeRegistry::additionalSupportedImageMIMETypes().clear();
for (const auto& imageType : imageTypes) {
additionalSupportedImageTypes().add(imageType);
auto mimeType = MIMETypeForImageType(imageType);
if (!mimeType.isEmpty())
MIMETypeRegistry::additionalSupportedImageMIMETypes().add(mimeType);
}
}
void setAdditionalSupportedImageTypesForTesting(const String& imageTypes)
{
setAdditionalSupportedImageTypes(imageTypes.split(';'));
}
bool isSupportedImageType(const String& imageType)
{
if (imageType.isEmpty())
return false;
return defaultSupportedImageTypes().contains(imageType) || additionalSupportedImageTypes().contains(imageType);
}
bool isGIFImageType(StringView imageType)
{
return imageType == "com.compuserve.gif"_s;
}
}
#endif