From: Toni Wilen <twilen@winuae.net>
Date: Tue, 8 Apr 2025 15:47:34 +0000 (+0300)
Subject: Very low audio period hack improvement (R-Type II)
X-Git-Url: https://git.unchartedbackwaters.co.uk/w/?a=commitdiff_plain;h=cac78257923a0e57dd3b320decdf0dd4d31ee8e0;p=francis%2Fwinuae.git

Very low audio period hack improvement (R-Type II)
---

diff --git a/audio.cpp b/audio.cpp
index 14846165..f51876c4 100644
--- a/audio.cpp
+++ b/audio.cpp
@@ -2506,8 +2506,15 @@ void event_audxdat_func(uae_u32 v)
 			if (cdp->wlen == 1) {
 				cdp->wlen = cdp->len;
 				// if very low period sample repeats, set higher period value to not cause huge performance drop
-				if (cdp->per < PERIOD_MIN_LOOP * CYCLE_UNIT) {
-					cdp->minperloop++;
+				// For example: Spaceport, R-Type II, Rambo III
+				if (cdp->per < PERIOD_MIN_LOOP * CYCLE_UNIT && !(intena & (1 << (nr + 7))) && !(currprefs.cs_hacks & 32)) {
+					int add = 1;
+					if (cdp->len == 0 || cdp->len > 10000) {
+						add = PERIOD_MIN_LOOP_COUNT;
+					} else if (cdp->len > 1000) {
+						add = 5;
+					}
+					cdp->minperloop += add;
 					if (cdp->minperloop >= PERIOD_MIN_LOOP_COUNT) {
 						cdp->per = PERIOD_MIN_LOOP * CYCLE_UNIT;
 					}