diff options
Diffstat (limited to 'plugins')
| -rwxr-xr-x | plugins/dfsound/dma.c | 25 |
1 files changed, 20 insertions, 5 deletions
diff --git a/plugins/dfsound/dma.c b/plugins/dfsound/dma.c index 15f44b11..ee3c8e54 100755 --- a/plugins/dfsound/dma.c +++ b/plugins/dfsound/dma.c @@ -44,23 +44,38 @@ unsigned short CALLBACK SPUreadDMA(void) void CALLBACK SPUreadDMAMem(unsigned short * pusPSXMem,int iSize) { int i; + unsigned char crc=0; spuStat |= STAT_DATA_BUSY; for(i=0;i<iSize;i++) { - Check_IRQ( spuAddr, 0 ); + Check_IRQ( spuAddr, 0 ); - - *pusPSXMem++=spuMem[spuAddr>>1]; // spu addr got by writeregister - spuAddr+=2; // inc spu addr + crc|=*pusPSXMem++=spuMem[spuAddr>>1]; // spu addr got by writeregister + spuAddr+=2; // inc spu addr + spuMem[spuAddr>>1]; - // guess based on Vib Ribbon (below) + // guess based on Vib Ribbon (below) if(spuAddr>0x7ffff) break; } iSpuAsyncWait=0; + /* + /* Toshiden Subaru "story screen" hack. + /* + /* After character selection screen, the game checks values inside returned + /* SPU buffer and all values cannot be 0x0. + /* Due to XA timings(?) we return buffer that has only NULLs. + /* Setting little lag to MixXA() causes buffer to have some non-NULL values, + /* but causes garbage sound so this hack is preferable. + /* + /* Note: When messing with xa.c like fixing Suikoden II's demo video sound issue + /* this should be handled as well. + */ + if (crc == 0) *--pusPSXMem=0xFF; + spuStat &= ~STAT_DATA_BUSY; spuStat &= ~STAT_DMA_NON; spuStat &= ~STAT_DMA_W; |