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feat(#92): support Extend param with optional background

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This commit is contained in:
Tomas Aparicio 2016-09-30 22:56:59 +01:00
parent 44636a88f0
commit 522cf71c73
6 changed files with 73 additions and 7 deletions
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9
vips.h
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@ -207,7 +207,12 @@ vips_zoom_bridge(VipsImage *in, VipsImage **out, int xfac, int yfac) {
}
int
vips_embed_bridge(VipsImage *in, VipsImage **out, int left, int top, int width, int height, int extend) {
vips_embed_bridge(VipsImage *in, VipsImage **out, int left, int top, int width, int height, int extend, double r, double g, double b) {
if (extend == VIPS_EXTEND_BACKGROUND) {
double background[3] = {r, g, b};
VipsArrayDouble *vipsBackground = vips_array_double_new(background, 3);
return vips_embed(in, out, left, top, width, height, "extend", extend, "background", vipsBackground, NULL);
}
return vips_embed(in, out, left, top, width, height, "extend", extend, NULL);
}
@ -280,7 +285,7 @@ int
vips_flatten_background_brigde(VipsImage *in, VipsImage **out, double r, double g, double b) {
double background[3] = {r, g, b};
VipsArrayDouble *vipsBackground = vips_array_double_new(background, 3);
return vips_flatten(in, out,
"background", vipsBackground,
"max_alpha", vips_is_16bit(in->Type) ? 65535.0 : 255.0,