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support Palette option for png

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This commit is contained in:
Azuma Fan 2020-06-08 16:43:04 +08:00
parent 3a950d13cd
commit dfd363a962
4 changed files with 8 additions and 3 deletions
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4
vips.go
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@ -55,6 +55,7 @@ type vipsSaveOptions struct {
InputICC string // Absolute path to the input ICC profile
OutputICC string // Absolute path to the output ICC profile
Interpretation Interpretation
Palette bool
}
type vipsWatermarkOptions struct {
@ -458,6 +459,7 @@ func vipsSave(image *C.VipsImage, o vipsSaveOptions) ([]byte, error) {
quality := C.int(o.Quality)
strip := C.int(boolToInt(o.StripMetadata))
lossless := C.int(boolToInt(o.Lossless))
palette := C.int(boolToInt(o.Palette))
if o.Type != 0 && !IsTypeSupportedSave(o.Type) {
return nil, fmt.Errorf("VIPS cannot save to %#v", ImageTypes[o.Type])
@ -467,7 +469,7 @@ func vipsSave(image *C.VipsImage, o vipsSaveOptions) ([]byte, error) {
case WEBP:
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)
saveErr = C.vips_pngsave_bridge(tmpImage, &ptr, &length, strip, C.int(o.Compression), quality, interlace, palette)
case TIFF:
saveErr = C.vips_tiffsave_bridge(tmpImage, &ptr, &length)
case HEIF: