Function checkqualifiers

src/inputdevice.cpp:6362–6414

#endif

static bool checkqualifiers (int evt, uae_u64 flags, uae_u64 *qualmask, uae_s16 events[MAX_INPUT_SUB_EVENT_ALL])
{
	int i, j;
	int qualid = getqualid (evt);
	int nomatch = 0;
	bool isspecial = (qualifiers & (ID_FLAG_QUALIFIER_SPECIAL | ID_FLAG_QUALIFIER_SPECIAL_R)) != 0;

	flags &= ID_FLAG_QUALIFIER_MASK;
	if (qualid >= 0 && events)
		qualifiers_evt[qualid] = events;
	/* special set and new qualifier pressed? do not sent it to Amiga-side */
	if ((qualifiers & (ID_FLAG_QUALIFIER_SPECIAL | ID_FLAG_QUALIFIER_SPECIAL_R)) && qualid >= 0)
		return false;

	for (i = 0; i < MAX_INPUT_SUB_EVENT; i++) {
		if (qualmask[i])
			break;
	}
	if (i == MAX_INPUT_SUB_EVENT) {
		 // no qualifiers in any slot and no special = always match
		return isspecial == false;
	}

	// do we have any subevents with qualifier set?
	for (i = 0; i < MAX_INPUT_SUB_EVENT; i++) {
		for (j = 0; j < MAX_INPUT_QUALIFIERS; j++) {
			uae_u64 mask = (ID_FLAG_QUALIFIER1 | ID_FLAG_QUALIFIER1_R) << (j * 2);
			bool isqualmask = (qualmask[i] & mask) != 0;
			bool isqual = (qualifiers & mask) != 0;
			if (isqualmask != isqual) {
				nomatch++;
				break;
			}
		}
	}
	if (nomatch == MAX_INPUT_SUB_EVENT) {
		// no matched qualifiers in any slot
		// allow all slots without qualifiers
		// special = never accept
		if (isspecial)
			return false;
		return flags ? false : true;
	}

	for (i = 0; i < MAX_INPUT_QUALIFIERS; i++) {
		uae_u64 mask = (ID_FLAG_QUALIFIER1 | ID_FLAG_QUALIFIER1_R) << (i * 2);
		bool isflags = (flags & mask) != 0;
		bool isqual = (qualifiers & mask) != 0;
		if (isflags != isqual)
			return false;
	}
	return true;
}

static void setqualifiers (int evt, int state)
{