/* * Copyright (C) 2011 Google Inc. All rights reserved. * Copyright (C) 2016 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 "FontTaggedSettings.h" #include <wtf/text/TextStream.h> #include <wtf/text/AtomicStringHash.h> namespace WebCore { template <> unsigned FontFeatureSettings::hash() const { IntegerHasher hasher; for (auto& feature : m_list) { hasher.add(FourCharacterTagHash::hash(feature.tag())); hasher.add(feature.value()); } return hasher.hash(); } #if ENABLE(VARIATION_FONTS) template <> unsigned FontVariationSettings::hash() const { static_assert(sizeof(float) == sizeof(int), "IntegerHasher needs to accept floats too"); union { float f; int i; } floatToInt; IntegerHasher hasher; for (auto& variation : m_list) { hasher.add(FourCharacterTagHash::hash(variation.tag())); floatToInt.f = variation.value(); hasher.add(floatToInt.i); } return hasher.hash(); } TextStream& operator<<(TextStream& ts, const FontVariationSettings& item) { for (unsigned i = 0; i < item.size(); ++i) { auto& variation = item.at(i); StringBuilder s; s.append(variation.tag()[0]); s.append(variation.tag()[1]); s.append(variation.tag()[2]); s.append(variation.tag()[3]); ts.dumpProperty(s.toString(), item.at(i).value()); } return ts; } #endif }