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fix bug in PictureDataFromImage

This commit is contained in:
faiface 2017-03-01 12:34:30 +01:00
parent 0644103ba1
commit b1311c29b6
1 changed files with 7 additions and 5 deletions
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10
data.go
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@ -160,11 +160,13 @@ func verticalFlip(nrgba *image.NRGBA) {
// //
// The resulting PictureData's Bounds will be the equivalent of the supplied image.Image's Bounds. // The resulting PictureData's Bounds will be the equivalent of the supplied image.Image's Bounds.
func PictureDataFromImage(img image.Image) PictureData { func PictureDataFromImage(img image.Image) PictureData {
nrgba := image.NewNRGBA(image.Rect( var nrgba *image.NRGBA
0, 0, if img, ok := img.(*image.NRGBA); ok {
img.Bounds().Dx(), img.Bounds().Dy(), nrgba = img
)) } else {
nrgba = image.NewNRGBA(img.Bounds())
draw.Draw(nrgba, nrgba.Bounds(), img, img.Bounds().Min, draw.Src) draw.Draw(nrgba, nrgba.Bounds(), img, img.Bounds().Min, draw.Src)
}
verticalFlip(nrgba) verticalFlip(nrgba)