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enable vipsAffine to use Extend option value and send it to lipvips

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this will change the default from the one that lipvips use which is `background` to the ones that bimg use which is  `C.VIPS_EXTEND_BLACK`
but because the lip add extra 1 or .5 pix the background is considered black anyway so this will not affect anyone
but will fix the bug of having border on the right and bottom of some images

[ch15924]
This commit is contained in:
Eslam Mahmoud 2019-11-15 10:08:31 -06:00 • committed by Matt Drollette
parent daafbf6d97
commit cd2783eff0
3 changed files with 9 additions and 5 deletions
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2
resizer.go
View file

@ -216,7 +216,7 @@ func transformImage(image *C.VipsImage, o Options, shrink int, residual float64)
if residualx < 1 && residualy < 1 {
image, err = vipsReduce(image, 1/residualx, 1/residualy)
} else {
image, err = vipsAffine(image, residualx, residualy, o.Interpolator)
image, err = vipsAffine(image, residualx, residualy, o.Interpolator, o.Extend)
}
if err != nil {
return nil, err

8
vips.go
View file

@ -595,7 +595,11 @@ func vipsEmbed(input *C.VipsImage, left, top, width, height int, extend Extend,
return image, nil
}
func vipsAffine(input *C.VipsImage, residualx, residualy float64, i Interpolator) (*C.VipsImage, error) {
func vipsAffine(input *C.VipsImage, residualx, residualy float64, i Interpolator, extend Extend) (*C.VipsImage, error) {
if extend > 5 {
extend = ExtendBackground
}
var image *C.VipsImage
cstring := C.CString(i.String())
interpolator := C.vips_interpolate_new(cstring)
@ -604,7 +608,7 @@ func vipsAffine(input *C.VipsImage, residualx, residualy float64, i Interpolator
defer C.g_object_unref(C.gpointer(input))
defer C.g_object_unref(C.gpointer(interpolator))
err := C.vips_affine_interpolator(input, &image, C.double(residualx), 0, 0, C.double(residualy), interpolator)
err := C.vips_affine_interpolator(input, &image, C.double(residualx), 0, 0, C.double(residualy), interpolator, C.int(extend))
if err != 0 {
return nil, catchVipsError()
}

4
vips.h
View file

@ -102,8 +102,8 @@ vips_enable_cache_set_trace() {
}
int
vips_affine_interpolator(VipsImage *in, VipsImage **out, double a, double b, double c, double d, VipsInterpolate *interpolator) {
return vips_affine(in, out, a, b, c, d, "interpolate", interpolator, NULL);
vips_affine_interpolator(VipsImage *in, VipsImage **out, double a, double b, double c, double d, VipsInterpolate *interpolator, int extend) {
return vips_affine(in, out, a, b, c, d, "interpolate", interpolator, "extend", extend, NULL);
}
int