// access pixel by coordinate
ColorVal operator()(const int p, const uint32_t r, const uint32_t c) const {
assert(p>=0);
assert(depth == 8 || depth == 16);
if (p<4 && constant[p]) return constant_val[p];
#ifdef SUPPORT_HDR
if (depth <= 8) {
#endif
switch(p) {
case 0: return plane_8_1->get(r,c);
case 1: return plane_16_1->get(r,c);
case 2: return plane_16_2->get(r,c);
case 3: return plane_8_2->get(r,c);
default: return plane_frame_lookbacks->get(r,c);
}
#ifdef SUPPORT_HDR
} else {
switch(p) {
case 0: return plane_16_1->get(r,c);
case 1: return plane_32_1->get(r,c);
case 2: return plane_32_2->get(r,c);
case 3: return plane_16_2->get(r,c);
default: return plane_frame_lookbacks->get(r,c);
}
}
#endif
}
