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text: Fix nil pointer dereference in drawGlyph (#1732)

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drawGlyph can panic when provided with a nil *ebiten.DrawImageOptions
reference. Check that the pointer is not nil before dereferencing.
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nanoslayer 2021-07-27 14:20:35 -04:00 committed by GitHub
parent 6efe7cbb8b
commit e52a933506
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1 changed files with 3 additions and 1 deletions
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text/text.go
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@ -61,7 +61,9 @@ func drawGlyph(dst *ebiten.Image, face font.Face, r rune, img *ebiten.Image, dx,
} }
op2.GeoM.Reset() op2.GeoM.Reset()
op2.GeoM.Translate(float64((dx+b.Min.X)>>6), float64((dy+b.Min.Y)>>6)) op2.GeoM.Translate(float64((dx+b.Min.X)>>6), float64((dy+b.Min.Y)>>6))
op2.GeoM.Concat(op.GeoM) if op != nil {
op2.GeoM.Concat(op.GeoM)
}
dst.DrawImage(img, op2) dst.DrawImage(img, op2)
} }