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Re: [cairo] Color fonts




On Fri, Jul 7, 2017 at 5:53 PM, Matthias Clasen <matthias.clasen@xxxxxxxxx> wrote:
On Sat, Jul 1, 2017 at 2:25 AM, Uli Schlachter <psychon@xxxxxx> wrote:

Okay... so what is the new model? What happens when I draw a color glyph
with operator XOR and a red source?

The red source is ignored for color glyphs because they are used as the source.

Note that while with Google's (CBDT/CBLC) and Apple's (sbix) color font formats the red source will be ignored, with the Microsoft (COLR/CPAL) and Adobe's (SVG/CPAL) the font can have color imaging as well as using the current foreground color.  So, the glyph image won't be just a source either.  It will be a mix of source and mask...  Right now those two formats are not implemented in FreeType though.
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