From 63a4f6b6a3b0315590cd3009df2c92480ed2d98b Mon Sep 17 00:00:00 2001
From: notaz
Date: Fri, 2 Jan 2015 04:13:50 +0200
Subject: spu: threaded implementation

unlike original P.E.Op.S. implementation, the goal here is to carefully
avoid any side effects caused by having the thread enabled
---
 plugins/dfsound/dma.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'plugins/dfsound/dma.c')

diff --git a/plugins/dfsound/dma.c b/plugins/dfsound/dma.c
index d3706b9..8d647ff 100644
--- a/plugins/dfsound/dma.c
+++ b/plugins/dfsound/dma.c
@@ -43,7 +43,7 @@ void CALLBACK SPUreadDMAMem(unsigned short *pusPSXMem, int iSize,
 {
  int i;
 
- do_samples_if_needed(cycles);
+ do_samples_if_needed(cycles, 1);
 
  for(i=0;i<iSize;i++)
   {
@@ -82,7 +82,7 @@ void CALLBACK SPUwriteDMAMem(unsigned short *pusPSXMem, int iSize,
 {
  int i;
  
- do_samples_if_needed(cycles);
+ do_samples_if_needed(cycles, 1);
 
  if(spu.spuAddr + iSize*2 < 0x80000)
   {
-- 
cgit v1.2.3


From 5514a050f4e936f5c333fa1271b11bf5a6a9ea39 Mon Sep 17 00:00:00 2001
From: notaz
Date: Sun, 4 Jan 2015 01:43:23 +0200
Subject: spu: start offload code to TI C64x DSP

---
 plugins/dfsound/dma.c | 26 +++++++++++++-------------
 1 file changed, 13 insertions(+), 13 deletions(-)

(limited to 'plugins/dfsound/dma.c')

diff --git a/plugins/dfsound/dma.c b/plugins/dfsound/dma.c
index 8d647ff..4798a19 100644
--- a/plugins/dfsound/dma.c
+++ b/plugins/dfsound/dma.c
@@ -27,9 +27,9 @@
 
 unsigned short CALLBACK SPUreadDMA(void)
 {
- unsigned short s=spu.spuMem[spu.spuAddr>>1];
- spu.spuAddr+=2;
- if(spu.spuAddr>0x7ffff) spu.spuAddr=0;
+ unsigned short s = *(unsigned short *)(spu.spuMemC + spu.spuAddr);
+ spu.spuAddr += 2;
+ spu.spuAddr &= 0x7fffe;
 
  return s;
 }
@@ -47,9 +47,9 @@ void CALLBACK SPUreadDMAMem(unsigned short *pusPSXMem, int iSize,
 
  for(i=0;i<iSize;i++)
   {
-   *pusPSXMem++=spu.spuMem[spu.spuAddr>>1];            // spu addr got by writeregister
-   spu.spuAddr+=2;                                     // inc spu addr
-   if(spu.spuAddr>0x7ffff) spu.spuAddr=0;              // wrap
+   *pusPSXMem++ = *(unsigned short *)(spu.spuMemC + spu.spuAddr);
+   spu.spuAddr += 2;
+   spu.spuAddr &= 0x7fffe;
   }
 }
 
@@ -67,10 +67,10 @@ void CALLBACK SPUreadDMAMem(unsigned short *pusPSXMem, int iSize,
   
 void CALLBACK SPUwriteDMA(unsigned short val)
 {
- spu.spuMem[spu.spuAddr>>1] = val;                     // spu addr got by writeregister
+ *(unsigned short *)(spu.spuMemC + spu.spuAddr) = val;
 
- spu.spuAddr+=2;                                       // inc spu addr
- if(spu.spuAddr>0x7ffff) spu.spuAddr=0;                // wrap
+ spu.spuAddr += 2;
+ spu.spuAddr &= 0x7fffe;
 }
 
 ////////////////////////////////////////////////////////////////////////
@@ -86,16 +86,16 @@ void CALLBACK SPUwriteDMAMem(unsigned short *pusPSXMem, int iSize,
 
  if(spu.spuAddr + iSize*2 < 0x80000)
   {
-   memcpy(&spu.spuMem[spu.spuAddr>>1], pusPSXMem, iSize*2);
+   memcpy(spu.spuMemC + spu.spuAddr, pusPSXMem, iSize*2);
    spu.spuAddr += iSize*2;
    return;
   }
 
  for(i=0;i<iSize;i++)
   {
-   spu.spuMem[spu.spuAddr>>1] = *pusPSXMem++;          // spu addr got by writeregister
-   spu.spuAddr+=2;                                     // inc spu addr
-   spu.spuAddr&=0x7ffff;                               // wrap
+   *(unsigned short *)(spu.spuMemC + spu.spuAddr) = *pusPSXMem++;
+   spu.spuAddr += 2;
+   spu.spuAddr &= 0x7fffe;
   }
 }
 
-- 
cgit v1.2.3