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Fix transparency problem when converting 32-bit images to WebP

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Fixes #8729
This commit is contained in:
Bjørn Erik Pedersen
2021-07-07 09:34:39 +02:00
parent 8ddbc95466
commit 8f40f34cd1
17 changed files with 73 additions and 2 deletions
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14
resources/images/image.go
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@@ -17,6 +17,7 @@ import (
"fmt"
"image"
"image/color"
"image/draw"
"image/gif"
"image/jpeg"
"image/png"
@@ -236,7 +237,18 @@ func (p *ImageProcessor) ApplyFiltersFromConfig(src image.Image, conf ImageConfi
func (p *ImageProcessor) Filter(src image.Image, filters ...gift.Filter) (image.Image, error) {
g := gift.New(filters...)
dst := image.NewRGBA(g.Bounds(src.Bounds()))
bounds := g.Bounds(src.Bounds())
var dst draw.Image
switch src.(type) {
case *image.RGBA:
dst = image.NewRGBA(bounds)
case *image.NRGBA:
dst = image.NewNRGBA(bounds)
case *image.Gray:
dst = image.NewGray(bounds)
default:
dst = image.NewNRGBA(bounds)
}
g.Draw(dst, src)
return dst, nil
}