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imgproxy/processing/extend.go

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package processing
import (
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"github.com/imgproxy/imgproxy/v3/imagedata"
"github.com/imgproxy/imgproxy/v3/options"
"github.com/imgproxy/imgproxy/v3/vips"
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)
func extend(pctx *pipelineContext, img *vips.Image, po *options.ProcessingOptions, imgdata *imagedata.ImageData) error {
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resultWidth, resultHeight := resultSize(po)
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if !po.Extend.Enabled || (resultWidth <= img.Width() && resultHeight <= img.Height()) {
return nil
}
offX, offY := calcPosition(resultWidth, resultHeight, img.Width(), img.Height(), &po.Extend.Gravity, false)
return img.Embed(resultWidth, resultHeight, offX, offY)
}