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text: Avoid creating 0-sized image

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This commit is contained in:
Hajime Hoshi 2018-04-26 02:11:45 +09:00
parent dff492955d
commit 6caebc2310
1 changed files with 38 additions and 36 deletions
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2
text/text.go
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@ -148,6 +148,7 @@ func getGlyphImages(face font.Face, runes []rune) []*glyphImage {
neededGlyphs[i] = b
}
if len(neededGlyphs) > 0 {
// TODO: What if w2 is too big (e.g. > 4096)?
w2 := 0
h2 := 0
@ -189,6 +190,7 @@ func getGlyphImages(face font.Face, runes []rune) []*glyphImage {
x += w
}
}
return imgs
}