From 2d34422469ec621c6c74dd349356a96236f3eee1 Mon Sep 17 00:00:00 2001
From: "SND\\shalma_cp" <SND\shalma_cp@e17a0e51-4ae3-4d35-97c3-1a29b211df97>
Date: Fri, 4 Feb 2011 23:23:41 +0000
Subject: dfsound -spu.c- use different async math (usable precision)

experimental patch
-dma.c- r/w irq (spu2-x)

disabled by default

git-svn-id: https://pcsxr.svn.codeplex.com/svn/pcsxr@62926 e17a0e51-4ae3-4d35-97c3-1a29b211df97
---
 plugins/dfsound/dma.c | 25 +++++++++++++++++++++++--
 plugins/dfsound/spu.c |  8 ++++----
 2 files changed, 27 insertions(+), 6 deletions(-)

(limited to 'plugins')

diff --git a/plugins/dfsound/dma.c b/plugins/dfsound/dma.c
index f92d0666..d46afa55 100644
--- a/plugins/dfsound/dma.c
+++ b/plugins/dfsound/dma.c
@@ -46,7 +46,18 @@ void CALLBACK SPUreadDMAMem(unsigned short * pusPSXMem,int iSize)
 
  for(i=0;i<iSize;i++)
   {
-   *pusPSXMem++=spuMem[spuAddr>>1];                    // spu addr got by writeregister
+#if 0
+		if(irqCallback && (spuCtrl&0x40))         // some callback and irq active?
+		{
+			// SPU2-X
+			if(pSpuIrq == spuMemC+spuAddr) {
+				irqCallback();                        // -> call main emu
+			}
+		}
+#endif
+
+		
+	 *pusPSXMem++=spuMem[spuAddr>>1];                    // spu addr got by writeregister
    spuAddr+=2;                                         // inc spu addr
    if(spuAddr>0x7ffff) spuAddr=0;                      // wrap
   }
@@ -86,7 +97,17 @@ void CALLBACK SPUwriteDMAMem(unsigned short * pusPSXMem,int iSize)
 
  for(i=0;i<iSize;i++)
   {
-   spuMem[spuAddr>>1] = *pusPSXMem++;                  // spu addr got by writeregister
+#if 0
+		if(irqCallback && (spuCtrl&0x40))         // some callback and irq active?
+		{
+			// SPU2-X
+			if(pSpuIrq == spuMemC+spuAddr) {
+				irqCallback();                        // -> call main emu
+			}
+		}
+#endif
+
+	 spuMem[spuAddr>>1] = *pusPSXMem++;                  // spu addr got by writeregister
    spuAddr+=2;                                         // inc spu addr
    if(spuAddr>0x7ffff) spuAddr=0;                      // wrap
   }
diff --git a/plugins/dfsound/spu.c b/plugins/dfsound/spu.c
index 40e32094..232c1c46 100644
--- a/plugins/dfsound/spu.c
+++ b/plugins/dfsound/spu.c
@@ -1005,9 +1005,9 @@ void CALLBACK SPUasync(unsigned long cycle)
  if(iUseTimer==2)                                      // special mode, only used in Linux by this spu (or if you enable the experimental Windows mode)
   {
    if(!bSpuInit) return;                               // -> no init, no call
-
-	 // 1 ms updates
-	 while( cpu_cycles >= CPU_CLOCK / INTERVAL_TIME )
+
+	 // note: usable precision difference (not using interval_time)
+	 while( cpu_cycles >= CPU_CLOCK / 44100 * NSSIZE )
 	 {
 	#ifdef _WINDOWS
 		 MAINProc(0,0,0,0,0);                                // -> experimental win mode... not really tested... don't like the drawbacks
@@ -1015,7 +1015,7 @@ void CALLBACK SPUasync(unsigned long cycle)
 		 MAINThread(0);                                      // -> linux high-compat mode
 	#endif
 
-		 cpu_cycles -= CPU_CLOCK / INTERVAL_TIME;
+		 cpu_cycles -= CPU_CLOCK / 44100 * NSSIZE;
 	 }
   }
 }
-- 
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