diff options
| -rw-r--r-- | libpcsxcore/mdec.c | 49 |
1 files changed, 48 insertions, 1 deletions
diff --git a/libpcsxcore/mdec.c b/libpcsxcore/mdec.c index 28a03fb5..2f4c565e 100644 --- a/libpcsxcore/mdec.c +++ b/libpcsxcore/mdec.c @@ -607,7 +607,54 @@ void mdec1Interrupt() { // MDECOUTDMA_INT(psxRegs.intCycle[PSXINT_MDECOUTDMA].cycle * 8); HW_DMA1_CHCR &= SWAP32(~0x01000000); - DMA_INTERRUPT(1); + DMA_INTERRUPT(1);
+
+
+#if 0
+ /*
+ Destruction Derby Raw: stall 4+ blocks
+ - Fixes boot movies
+
+ Final Fantasy 9: stall 4+ blocks
+ - Prevent Dali video from infinite stall, corruption
+
+ Rebel Assault 2: stall 8+ blocks
+ - Fixes boot movies, stage 6 play
+ */
+
+ {
+ int blk[DSIZE2 * 6];
+ int lcv, size;
+ u16 *img;
+
+
+#define PRECACHE_STALL 8
+
+ img = mdec.rl;
+ size = mdec.rlsize * 4;
+ for( lcv = 0; lcv < PRECACHE_STALL; lcv++ ) {
+ u8 *old_img;
+
+ old_img = (u8 *) img;
+ img = rl2blk(blk, img);
+
+ size -= (u8 *) img - old_img;
+ if( size < 0 ) break;
+ }
+
+ // pre-cache input stall - turn off mdec
+ if( size < 0 )
+ {
+ #ifdef CDR_LOG
+ CDR_LOG( "BUSY STALL %X [IN = %X, SIZE = %X]\n",
+ lcv, ((u8 *)img - (u8 *)mdec.rl)/4, mdec.rlsize );
+ #endif
+
+ // drain input + wait before timing out
+ MDECOUTDMA_INT( (PRECACHE_STALL * 1) * (16 * 16 * 3) );
+ }
+ }
+#endif } else { mdec.reg1 &= ~MDEC1_BUSY; } |