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3 Commits

Author SHA1 Message Date
Nigel Tao
ce0faa1867 font/sfnt: flip the Y axis for LoadGlyph's Segments. 
The underlying font format's Y axis increases up. The Go standard
graphics libraries' Y axis increases down. This change makes the Go API
consistent with the other Go libraries.

Also change Segment.Args from [6]fixed.Int26_6 to [3]fixed.Point26_6 to
emphasize that the Args are consistent with other fixed.Point26_6 use.

Change-Id: Idd7b89eb4d86890dea477ac2ef96ff8f6b1dee8d
Reviewed-on: https://go-review.googlesource.com/39072
Reviewed-by: David Crawshaw <crawshaw@golang.org>
 2017-03-31 23:39:16 +00:00
Nigel Tao
793f3be7da font/sfnt: implement {hh,vv}curveto. 
Change-Id: I873f8b273d2fe9f39df7d333c36976f1b45239a0
Reviewed-on: https://go-review.googlesource.com/37917
Reviewed-by: David Crawshaw <crawshaw@golang.org>
 2017-03-12 00:23:23 +00:00
Nigel Tao
ed91dc314e font/sfnt: add a ppem arg to Font.LoadGlyph. 
This lets us load a glyph at e.g. 12 pixels per em.

Change-Id: I048b3db89af8670782953a8361afe0e6373df9b0
Reviewed-on: https://go-review.googlesource.com/37175
Reviewed-by: David Crawshaw <crawshaw@golang.org>
 2017-02-22 03:05:44 +00:00