/*
* Copyright (c) 2006, 2007, 2008, Google 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:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "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 THE COPYRIGHT
* OWNER 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 "platform/fonts/FontPlatformData.h"
#include "SkEndian.h"
#include "SkTypeface.h"
#include "platform/fonts/FontCache.h"
namespace WebCore {
#if !OS(MACOSX)
unsigned FontPlatformData::hash() const
{
unsigned h = SkTypeface::UniqueID(m_typeface.get());
h ^= 0x01010101 * ((static_cast<int>(m_orientation) << 2) | (static_cast<int>(m_syntheticBold) << 1) | static_cast<int>(m_syntheticItalic));
// This memcpy is to avoid a reinterpret_cast that breaks strict-aliasing
// rules. Memcpy is generally optimized enough so that performance doesn't
// matter here.
uint32_t textSizeBytes;
memcpy(&textSizeBytes, &m_textSize, sizeof(uint32_t));
h ^= textSizeBytes;
return h;
}
#endif
#if ENABLE(OPENTYPE_VERTICAL)
PassRefPtr<OpenTypeVerticalData> FontPlatformData::verticalData() const
{
return FontCache::fontCache()->getVerticalData(typeface()->uniqueID(), *this);
}
PassRefPtr<SharedBuffer> FontPlatformData::openTypeTable(uint32_t table) const
{
RefPtr<SharedBuffer> buffer;
SkFontTableTag tag = SkEndianSwap32(table);
const size_t tableSize = m_typeface->getTableSize(tag);
if (tableSize) {
Vector<char> tableBuffer(tableSize);
m_typeface->getTableData(tag, 0, tableSize, &tableBuffer[0]);
buffer = SharedBuffer::adoptVector(tableBuffer);
}
return buffer.release();
}
#endif
} // namespace WebCore