FontCustomPlatformData.cpp [plain text]
#include "config.h"
#include "FontCustomPlatformData.h"
#include "SharedBuffer.h"
#include "FontPlatformData.h"
#include "OpenTypeSanitizer.h"
#include <wtf/UnusedParam.h>
namespace WebCore {
FontCustomPlatformData::~FontCustomPlatformData()
{
#if defined(BUILDING_ON_TIGER) || defined(BUILDING_ON_LEOPARD)
if (m_atsContainer)
ATSFontDeactivate(m_atsContainer, NULL, kATSOptionFlagsDefault);
#endif
CGFontRelease(m_cgFont);
}
FontPlatformData FontCustomPlatformData::fontPlatformData(int size, bool bold, bool italic, FontRenderingMode)
{
return FontPlatformData(m_cgFont, (ATSUFontID)m_atsFont, size, bold, italic);
}
FontCustomPlatformData* createFontCustomPlatformData(SharedBuffer* buffer)
{
ASSERT_ARG(buffer, buffer);
#if ENABLE(OPENTYPE_SANITIZER)
OpenTypeSanitizer sanitizer(buffer);
RefPtr<SharedBuffer> transcodeBuffer = sanitizer.sanitize();
if (!transcodeBuffer)
return 0; buffer = transcodeBuffer.get();
#endif
ATSFontContainerRef containerRef = 0;
ATSFontRef fontRef = 0;
RetainPtr<CGFontRef> cgFontRef;
#if !defined(BUILDING_ON_TIGER) && !defined(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
ATSFontActivateFromMemory((void*)buffer->data(), buffer->size(), 3, kATSFontFormatUnspecified, NULL, kATSOptionFlagsDefault, &containerRef);
if (!containerRef)
return 0;
ItemCount fontCount;
ATSFontFindFromContainer(containerRef, kATSOptionFlagsDefault, 0, NULL, &fontCount);
if (fontCount == 0) {
ATSFontDeactivate(containerRef, NULL, kATSOptionFlagsDefault);
return 0;
}
ATSFontFindFromContainer(containerRef, kATSOptionFlagsDefault, 1, &fontRef, NULL);
if (!fontRef) {
ATSFontDeactivate(containerRef, NULL, kATSOptionFlagsDefault);
return 0;
}
cgFontRef.adoptCF(CGFontCreateWithPlatformFont(&fontRef));
#ifndef BUILDING_ON_TIGER
if (cgFontRef && !CGFontGetNumberOfGlyphs(cgFontRef.get()))
cgFontRef = 0;
#endif
if (!cgFontRef) {
ATSFontDeactivate(containerRef, NULL, kATSOptionFlagsDefault);
return 0;
}
#endif // !defined(BUILDING_ON_TIGER) && !defined(BUILDING_ON_LEOPARD)
return new FontCustomPlatformData(containerRef, fontRef, cgFontRef.releaseRef());
}
}