36 lines
836 B
Go

package main
import (
"github.com/animenotifier/arn"
"github.com/nfnt/resize"
)
// AvatarWebPFileOutput ...
type AvatarWebPFileOutput struct {
Directory string
Size int
Quality float32
}
// SaveAvatar writes the avatar in WebP format to the file system.
func (output *AvatarWebPFileOutput) SaveAvatar(avatar *Avatar) error {
img := avatar.Image
// Resize if needed
if img.Bounds().Dx() != output.Size {
// Use Lanczos interpolation for downscales
interpolation := resize.Lanczos3
// Use Mitchell interpolation for upscales
if output.Size > img.Bounds().Dx() {
interpolation = resize.MitchellNetravali
}
img = resize.Resize(arn.AvatarSmallSize, 0, img, interpolation)
}
// Write to file
fileName := output.Directory + avatar.User.ID + ".webp"
return arn.SaveWebP(img, fileName, output.Quality)
}