Initial HyperDRM 0.6.0: webOS ambient light app and native service

native/test_interpolation.c

@@ -0,0 +1,16 @@
+#include <assert.h>
+#include <stdio.h>
+#include "interpolation.h"
+int main(void){
+ const unsigned char a[3]={255,0,0},b[3]={0,255,0};unsigned char out[3];
+ blend_color(a,b,0,out);assert(out[0]==255 && out[1]==0 && out[2]==0);
+ blend_color(a,b,65535,out);assert(out[0]==0 && out[1]==255 && out[2]==0);
+ blend_color(a,b,32768,out);assert(out[0]==127 && out[1]==128 && out[2]==0);
+ unsigned previous=0;
+ for(unsigned w=0;w<=65535;w++){
+  blend_color(a,b,w,out);assert(out[1]>=previous && out[2]==0);previous=out[1];
+  unsigned char gray[3]={173,173,173};blend_color(gray,gray,w,out);
+  assert(out[0]==173 && out[1]==173 && out[2]==173);
+ }
+ puts("PASS: endpoints, midpoint, all weights monotonic, constant gray preserved");
+}