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Add lossless option for saving webp

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This commit is contained in:
Mike Stead 2017-11-11 14:56:12 +11:00
parent 0df331cdeb
commit ce5ae9c7fe
4 changed files with 7 additions and 2 deletions
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4
vips.go
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@ -56,6 +56,7 @@ type vipsSaveOptions struct {
Interlace bool
NoProfile bool
StripMetadata bool
Lossless bool
OutputICC string // Absolute path to the output ICC profile
Interpretation Interpretation
}
@ -423,6 +424,7 @@ func vipsSave(image *C.VipsImage, o vipsSaveOptions) ([]byte, error) {
interlace := C.int(boolToInt(o.Interlace))
quality := C.int(o.Quality)
strip := C.int(boolToInt(o.StripMetadata))
lossless := C.int(boolToInt(o.Lossless))
if o.Type != 0 && !IsTypeSupportedSave(o.Type) {
return nil, fmt.Errorf("VIPS cannot save to %#v", ImageTypes[o.Type])
@ -430,7 +432,7 @@ func vipsSave(image *C.VipsImage, o vipsSaveOptions) ([]byte, error) {
var ptr unsafe.Pointer
switch o.Type {
case WEBP:
saveErr = C.vips_webpsave_bridge(tmpImage, &ptr, &length, strip, quality)
saveErr = C.vips_webpsave_bridge(tmpImage, &ptr, &length, strip, quality, lossless)
case PNG:
saveErr = C.vips_pngsave_bridge(tmpImage, &ptr, &length, strip, C.int(o.Compression), quality, interlace)
case TIFF: