cdrom: more timing hacks

diff --git a/libpcsxcore/cdrom.c b/libpcsxcore/cdrom.c
index 7bc57cf..90ec0d3 100644 (file)
--- a/libpcsxcore/cdrom.c
+++ b/libpcsxcore/cdrom.c
@@ -102,7 +102,7 @@ static struct {
        u16 CmdInProgress;
        u8 Irq1Pending;
        u8 unused5;
-       u32 unused6;
+       u32 LastReadCycles;
 
        u8 unused7;
 
@@ -562,26 +562,18 @@ static void cdrPlayInterrupt_Autopause()
        }
 }
 
+// LastReadCycles
 static int cdrSeekTime(unsigned char *target)
 {
        int diff = msf2sec(cdr.SetSectorPlay) - msf2sec(target);
-       int seekTime = abs(diff) * (cdReadTime / 200);
-       /*
-       * Gameblabla :
-       * It was originally set to 1000000 for Driver, however it is not high enough for Worms Pinball
-       * and was unreliable for that game.
-       * I also tested it against Mednafen and Driver's titlescreen music starts 25 frames later, not immediatly.
-       *
-       * Obviously, this isn't perfect but right now, it should be a bit better.
-       * Games to test this against if you change that setting :
-       * - Driver (titlescreen music delay and retry mission)
-       * - Worms Pinball (Will either not boot or crash in the memory card screen)
-       * - Viewpoint (short pauses if the delay in the ingame music is too long)
-       *
-       * It seems that 3386880 * 5 is too much for Driver's titlescreen and it starts skipping.
-       * However, 1000000 is not enough for Worms Pinball to reliably boot.
-       */
-       if(seekTime > 3386880 * 2) seekTime = 3386880 * 2;
+       int pausePenalty, seekTime = abs(diff) * (cdReadTime / 2000);
+       seekTime = MAX_VALUE(seekTime, 20000);
+
+       // need this stupidly long penalty or else Spyro2 intro desyncs
+       pausePenalty = (s32)(psxRegs.cycle - cdr.LastReadCycles) > cdReadTime * 4 ? cdReadTime * 25 : 0;
+       seekTime += pausePenalty;
+
+       seekTime = MIN_VALUE(seekTime, PSXCLK * 2 / 3);
        CDR_LOG("seek: %.2f %.2f\n", (float)seekTime / PSXCLK, (float)seekTime / cdReadTime);
        return seekTime;
 }
@@ -634,6 +626,8 @@ static void msfiAdd(u8 *msfi, u32 count)
 
 void cdrPlayReadInterrupt(void)
 {
+       cdr.LastReadCycles = psxRegs.cycle;
+
        if (cdr.Reading) {
                cdrReadInterrupt();
                return;
@@ -914,7 +908,7 @@ void cdrInterrupt(void) {
                        }
                        else
                        {
-                               second_resp_time = (((cdr.Mode & MODE_SPEED) ? 2 : 1) * 1000000);
+                               second_resp_time = (((cdr.Mode & MODE_SPEED) ? 1 : 2) * 1097107);
                        }
                        SetPlaySeekRead(cdr.StatP, 0);
                        break;