Function get_r

utility/image_saver.cpp:462–464

namespace {

constexpr uint8_t get_r(uint32_t rgbe) {
	return (uint8_t)((rgbe >> 1) & 0xFF);
}
constexpr uint8_t get_g(uint32_t rgbe) {
	return (uint8_t)((rgbe >> 10) & 0xFF);
}