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Use vips reduce when downscaling

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This commit is contained in:
Adam Scarr 2017-07-04 11:33:13 +10:00
parent 878125c410
commit dc3286965b
3 changed files with 22 additions and 1 deletions
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12
vips.go
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@ -513,6 +513,18 @@ func vipsShrink(input *C.VipsImage, shrink int) (*C.VipsImage, error) {
return image, nil
}
func vipsReduce(input *C.VipsImage, xshrink float64, yshrink float64) (*C.VipsImage, error) {
var image *C.VipsImage
defer C.g_object_unref(C.gpointer(input))
err := C.vips_reduce_bridge(input, &image, C.double(xshrink), C.double(yshrink))
if err != 0 {
return nil, catchVipsError()
}
return image, nil
}
func vipsEmbed(input *C.VipsImage, left, top, width, height int, extend Extend, background Color) (*C.VipsImage, error) {
var image *C.VipsImage