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Dont scan all pixels of JPEG images when EXIF rotated to check for opacity

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Kovid Goyal
2023-01-03 10:27:31 +05:30
parent 458adf967a
commit 2d3da1db6d
1 changed files with 7 additions and 1 deletions
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8
tools/cmd/icat/native.go
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@@ -28,7 +28,13 @@ func resize_frame(imgd *image_data, img image.Image) (image.Image, image.Rectang
} }
func add_frame(imgd *image_data, img image.Image) *image_frame { func add_frame(imgd *image_data, img image.Image) *image_frame {
is_opaque := images.IsOpaque(img) is_opaque := false
if imgd.format_uppercase == "JPEG" {
// special cased because EXIF orientation could have already changed this image to an NRGBA making IsOpaque() very slow
is_opaque = true
} else {
is_opaque = images.IsOpaque(img)
}
b := img.Bounds() b := img.Bounds()
if imgd.scaled_frac.x != 0 { if imgd.scaled_frac.x != 0 {
img, b = resize_frame(imgd, img) img, b = resize_frame(imgd, img)