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Merge pull request #88 from blippar/master

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Check for alpha channel before flattening image
This commit is contained in:
Tomás Aparicio 2016-05-16 19:46:37 +01:00
commit cb0afe5786
1 changed files with 7 additions and 6 deletions
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13
vips.go
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@ -274,14 +274,15 @@ func vipsFlattenBackground(image *C.VipsImage, background Color) (*C.VipsImage,
C.double(background.B), C.double(background.B),
} }
err := C.vips_flatten_background_brigde(image, &outImage, (*C.double)(&backgroundC[0])) if vipsHasAlpha(image) {
if int(err) != 0 { err := C.vips_flatten_background_brigde(image, &outImage, (*C.double)(&backgroundC[0]))
return nil, catchVipsError() if int(err) != 0 {
return nil, catchVipsError()
}
C.g_object_unref(C.gpointer(image))
image = outImage
} }
C.g_object_unref(C.gpointer(image))
image = outImage
return image, nil return image, nil
} }