Re: [cairo] Color fonts

[Behdad Esfahbod]

On Fri, Jul 7, 2017 at 5:53 PM, Matthias Clasen 
wrote:

> On Sat, Jul 1, 2017 at 2:25 AM, Uli Schlachter  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.

-- 
behdad
http://behdad.org/
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Re: [cairo] Color fonts

[Behdad Esfahbod]

On Fri, Jul 7, 2017 at 5:55 PM, Matthias Clasen 
wrote:

> It would be great to know if this approach, following Behdad's
> recommendation, will be acceptable.
>

Thanks for the quick implementation.  I quite like your changes and think
this is the right way to do it.


> Review of the changes in https://github.com/matthiasclasen/cairo/tree/
> emoji-again would appreciated as well.
>

I like it after your simplification.  I'll try to review the tricky part
you requested.


> I admit that I haven't thought about necessary documentation updates yet.
>



-- 
behdad
http://behdad.org/
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