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freetype
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Don't crash when a glyph has no contours.

This commit is contained in:
Nigel Tao 2016-12-08 17:47:10 +11:00
parent 38b4c392ad
commit d9be45aaf7
1 changed files with 5 additions and 0 deletions
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5
truetype/glyph.go
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@ -209,6 +209,7 @@ func (g *GlyphBuf) load(recursion uint32, i Index, useMyMetrics bool) (err error
g.addPhantomsAndScale(len(g.Points), len(g.Points), true, true)
copy(g.phantomPoints[:], g.Points[len(g.Points)-4:])
g.Points = g.Points[:len(g.Points)-4]
// TODO: also trim g.InFontUnits and g.Unhinted?
return nil
}
@ -282,6 +283,10 @@ func (g *GlyphBuf) loadSimple(glyf []byte, ne int) (program []byte) {
program = glyf[offset : offset+instrLen]
offset += instrLen
if ne == 0 {
return program
}
np0 := len(g.Points)
np1 := np0 + int(g.Ends[len(g.Ends)-1])