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mirror of https://github.com/imgproxy/imgproxy.git synced 2024-11-24 08:12:38 +02:00
imgproxy/processing/padding.go

27 lines
769 B
Go

package processing
import (
"github.com/imgproxy/imgproxy/v3/imagedata"
"github.com/imgproxy/imgproxy/v3/imath"
"github.com/imgproxy/imgproxy/v3/options"
"github.com/imgproxy/imgproxy/v3/vips"
)
func padding(pctx *pipelineContext, img *vips.Image, po *options.ProcessingOptions, imgdata *imagedata.ImageData) error {
if !po.Padding.Enabled {
return nil
}
paddingTop := imath.ScaleToEven(po.Padding.Top, pctx.dprScale)
paddingRight := imath.ScaleToEven(po.Padding.Right, pctx.dprScale)
paddingBottom := imath.ScaleToEven(po.Padding.Bottom, pctx.dprScale)
paddingLeft := imath.ScaleToEven(po.Padding.Left, pctx.dprScale)
return img.Embed(
img.Width()+paddingLeft+paddingRight,
img.Height()+paddingTop+paddingBottom,
paddingLeft,
paddingTop,
)
}