void RandomScalerContext::generateImage(const SkGlyph& glyph) {
// TODO: can force down but not up
/*
SkMask::Format format = (SkMask::Format)glyph.fMaskFormat;
switch (glyph.getGlyphID() % 4) {
case 0: format = SkMask::kLCD16_Format; break;
case 1: format = SkMask::kA8_Format; break;
case 2: format = SkMask::kARGB32_Format; break;
case 3: format = SkMask::kBW_Format; break;
}
const_cast<SkGlyph&>(glyph).fMaskFormat = format;
*/
if (fFakeIt) {
sk_bzero(glyph.fImage, glyph.computeImageSize());
return;
}
if (SkMask::kARGB32_Format != glyph.fMaskFormat) {
fProxy->getImage(glyph);
return;
}
// If the format is ARGB, just draw the glyph from path.
SkPath path;
if (!fProxy->getPath(glyph.getPackedID(), &path)) {
fProxy->getImage(glyph);
return;
}
SkBitmap bm;
bm.installPixels(SkImageInfo::MakeN32Premul(glyph.fWidth, glyph.fHeight),
glyph.fImage,
glyph.rowBytes());
bm.eraseColor(0);
SkCanvas canvas(bm);
canvas.translate(-SkIntToScalar(glyph.fLeft), -SkIntToScalar(glyph.fTop));
canvas.drawPath(path, this->getRandomTypeface()->paint());
}
