maskb |= maskb << 1;
maskg |= maskg << 1;
for (i = 0; i < width; i++) {
- int px0 = input_pixel(2 * i + 0) >> shp;
- int px1 = input_pixel(2 * i + 1) >> shp;
+ unsigned px0 = input_pixel(2 * i + 0) >> shp;
+ unsigned px1 = input_pixel(2 * i + 1) >> shp;
int b, r, g = (px0 & maskgx) + (px1 & maskgx);
int rb = px0 + px1 - g;