FontCacheKey FontDescription::cacheKey(const FontFaceCreationParams& creationParams, FontTraits desiredTraits) const
{
FontTraits fontTraits = desiredTraits.bitfield() ? desiredTraits : traits();
unsigned options =
static_cast<unsigned>(m_syntheticItalic) << 5 | // bit 6
static_cast<unsigned>(m_syntheticBold) << 4 | // bit 5
static_cast<unsigned>(m_textRendering) << 2 | // bits 3-4
static_cast<unsigned>(m_orientation) << 1 | // bit 2
static_cast<unsigned>(m_subpixelTextPosition); // bit 1
return FontCacheKey(creationParams, effectiveFontSize(), options | fontTraits.bitfield() << 8);
}
FontCacheKey FontDescription::cacheKey(const AtomicString& familyName, FontTraits desiredTraits) const
{
FontTraits fontTraits = desiredTraits.mask()
? desiredTraits
: traits();
unsigned options =
static_cast<unsigned>(m_syntheticItalic) << 7 | // bit 8
static_cast<unsigned>(m_syntheticBold) << 6 | // bit 7
static_cast<unsigned>(m_fontSmoothing) << 4 | // bits 5-6
static_cast<unsigned>(m_textRendering) << 2 | // bits 3-4
static_cast<unsigned>(m_orientation) << 1 | // bit 2
static_cast<unsigned>(m_subpixelTextPosition); // bit 1
return FontCacheKey(familyName, effectiveFontSize(), options | fontTraits.mask() << 8);
}
FontCacheKey FontDescription::cacheKey(const AtomicString& familyName, FontTraitsMask desiredTraits) const
{
FontTraitsMask traits = desiredTraits
? desiredTraits
: traitsMask();
unsigned options =
static_cast<unsigned>(m_syntheticItalic) << 8 | // bit 9
static_cast<unsigned>(m_syntheticBold) << 7 | // bit 8
static_cast<unsigned>(m_fontSmoothing) << 5 | // bits 6-7
static_cast<unsigned>(m_textRendering) << 3 | // bits 4-5
static_cast<unsigned>(m_orientation) << 2 | // bit 3
static_cast<unsigned>(m_usePrinterFont) << 1 | // bit 2
static_cast<unsigned>(m_subpixelTextPosition); // bit 1
return FontCacheKey(familyName, effectiveFontSize(), options | traits << 9);
}
