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/*
* Copyright (C) 2007, 2008, 2010 Apple Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#include "config.h"
#include "FontCustomPlatformData.h"
#include "FontPlatformData.h"
#include "OpenTypeSanitizer.h"
#include "SharedBuffer.h"
#include "WOFFFileFormat.h"
#include <ApplicationServices/ApplicationServices.h>
namespace WebCore {
FontCustomPlatformData::~FontCustomPlatformData()
{
#ifdef BUILDING_ON_LEOPARD
if (m_atsContainer)
ATSFontDeactivate(m_atsContainer, NULL, kATSOptionFlagsDefault);
#endif
CGFontRelease(m_cgFont);
}
FontPlatformData FontCustomPlatformData::fontPlatformData(int size, bool bold, bool italic, FontOrientation orientation, TextOrientation textOrientation, FontWidthVariant widthVariant, FontRenderingMode)
{
return FontPlatformData(m_cgFont, size, bold, italic, orientation, textOrientation, widthVariant);
}
FontCustomPlatformData* createFontCustomPlatformData(SharedBuffer* buffer)
{
ASSERT_ARG(buffer, buffer);
#if ENABLE(OPENTYPE_SANITIZER)
OpenTypeSanitizer sanitizer(buffer);
RefPtr<SharedBuffer> transcodeBuffer = sanitizer.sanitize();
if (!transcodeBuffer)
return 0; // validation failed.
buffer = transcodeBuffer.get();
#else
RefPtr<SharedBuffer> sfntBuffer;
if (isWOFF(buffer)) {
Vector<char> sfnt;
if (!convertWOFFToSfnt(buffer, sfnt))
return 0;
sfntBuffer = SharedBuffer::adoptVector(sfnt);
buffer = sfntBuffer.get();
}
#endif
ATSFontContainerRef containerRef = 0;
RetainPtr<CGFontRef> cgFontRef;
#ifndef BUILDING_ON_LEOPARD
RetainPtr<CFDataRef> bufferData(AdoptCF, buffer->createCFData());
RetainPtr<CGDataProviderRef> dataProvider(AdoptCF, CGDataProviderCreateWithCFData(bufferData.get()));
cgFontRef.adoptCF(CGFontCreateWithDataProvider(dataProvider.get()));
if (!cgFontRef)
return 0;
#else
// Use ATS to activate the font.
// The value "3" means that the font is private and can't be seen by anyone else.
ATSFontActivateFromMemory((void*)buffer->data(), buffer->size(), 3, kATSFontFormatUnspecified, NULL, kATSOptionFlagsDefault, &containerRef);
if (!containerRef)
return 0;
ItemCount fontCount;
ATSFontFindFromContainer(containerRef, kATSOptionFlagsDefault, 0, NULL, &fontCount);
// We just support the first font in the list.
if (fontCount == 0) {
ATSFontDeactivate(containerRef, NULL, kATSOptionFlagsDefault);
return 0;
}
ATSFontRef fontRef = 0;
ATSFontFindFromContainer(containerRef, kATSOptionFlagsDefault, 1, &fontRef, NULL);
if (!fontRef) {
ATSFontDeactivate(containerRef, NULL, kATSOptionFlagsDefault);
return 0;
}
cgFontRef.adoptCF(CGFontCreateWithPlatformFont(&fontRef));
// Workaround for <rdar://problem/5675504>.
if (cgFontRef && !CGFontGetNumberOfGlyphs(cgFontRef.get()))
cgFontRef = 0;
if (!cgFontRef) {
ATSFontDeactivate(containerRef, NULL, kATSOptionFlagsDefault);
return 0;
}
#endif // !defined(BUILDING_ON_LEOPARD)
return new FontCustomPlatformData(containerRef, cgFontRef.releaseRef());
}
bool FontCustomPlatformData::supportsFormat(const String& format)
{
return equalIgnoringCase(format, "truetype") || equalIgnoringCase(format, "opentype") || equalIgnoringCase(format, "woff");
}
}
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