HWB2              358 ext/gd/libgd/gd.c 	HWBType HWB1, HWB2;
HWB2              365 ext/gd/libgd/gd.c 	RGB_to_HWB(RGB2, &HWB2);
HWB2              372 ext/gd/libgd/gd.c 	if ((HWB1.H == HWB_UNDEFINED) || (HWB2.H == HWB_UNDEFINED)) {
HWB2              375 ext/gd/libgd/gd.c 		diff = fabsf(HWB1.H - HWB2.H);
HWB2              381 ext/gd/libgd/gd.c 	diff = diff * diff + (HWB1.W - HWB2.W) * (HWB1.W - HWB2.W) + (HWB1.B - HWB2.B) * (HWB1.B - HWB2.B);