bool SVGFontData::fillSVGGlyphPage(GlyphPage* pageToFill, unsigned offset, unsigned length, UChar* buffer, unsigned bufferLength, const SimpleFontData* fontData) const
{
ASSERT(fontData->isCustomFont());
ASSERT(fontData->isSVGFont());
SVGFontFaceElement* fontFaceElement = this->svgFontFaceElement();
ASSERT(fontFaceElement);
SVGFontElement* fontElement = fontFaceElement->associatedFontElement();
ASSERT(fontElement);
if (bufferLength == length)
return fillBMPGlyphs(fontElement, pageToFill, offset, length, buffer, fontData);
ASSERT(bufferLength == 2 * length);
return fillNonBMPGlyphs(fontElement, pageToFill, offset, length, buffer, fontData);
}
// We're supposed to return true if there are any glyphs in the range
// specified by |offset| and |length| in our font,
// false if there are none.
bool GlyphPage::fill(unsigned offset, unsigned length, UChar* characterBuffer,
unsigned bufferLength, const SimpleFontData* fontData)
{
// We have to handle BMP and non-BMP characters differently.
// FIXME: Add assertions to make sure that buffer is entirely in BMP
// or entirely in non-BMP.
if (bufferLength == length)
return fillBMPGlyphs(offset, length, characterBuffer, this, fontData, true);
if (bufferLength == 2 * length) {
// A non-BMP input buffer will be twice as long as output glyph buffer
// because each character in the non-BMP input buffer will be
// represented by a surrogate pair (two UChar's).
return fillNonBMPGlyphs(offset, length, characterBuffer, this, fontData);
}
ASSERT_NOT_REACHED();
return false;
}
