| /* |
| * 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/Hasher.h> |
| #include <wtf/text/AtomStringHash.h> |
| #include <wtf/text/TextStream.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 |
| |
| } |