From 17ed0d696a7a3649cc41dcf182e162c85002b33a Mon Sep 17 00:00:00 2001
From: notaz
Date: Sat, 26 Feb 2011 23:15:43 +0200
Subject: gte_neon: implement MVMVA, some fixes

---
 plugins/dfsound/oss.c | 5 +++--
 plugins/dfsound/spu.c | 7 ++++++-
 2 files changed, 9 insertions(+), 3 deletions(-)

(limited to 'plugins/dfsound')

diff --git a/plugins/dfsound/oss.c b/plugins/dfsound/oss.c
index f4dd215..929d921 100644
--- a/plugins/dfsound/oss.c
+++ b/plugins/dfsound/oss.c
@@ -65,9 +65,10 @@ void SetupSound(void)
   }
 
  // we use 64 fragments with 1024 bytes each
+ // rearmed: now using 10*4096 for better latency
 
- fragsize=10;
- myfrag=(63<<16)|fragsize;
+ fragsize=12;
+ myfrag=(10<<16)|fragsize;
 
  if(ioctl(oss_audio_fd,SNDCTL_DSP_SETFRAGMENT,&myfrag)==-1)
   {
diff --git a/plugins/dfsound/spu.c b/plugins/dfsound/spu.c
index c455d3d..afd5fd6 100644
--- a/plugins/dfsound/spu.c
+++ b/plugins/dfsound/spu.c
@@ -771,7 +771,7 @@ void CALLBACK SPUasync(unsigned long cycle)
  if(iSpuAsyncWait)
   {
    iSpuAsyncWait++;
-   if(iSpuAsyncWait<=64) return;
+   if(iSpuAsyncWait<=16) return;
    iSpuAsyncWait=0;
   }
 
@@ -780,6 +780,11 @@ void CALLBACK SPUasync(unsigned long cycle)
    if(!bSpuInit) return;                               // -> no init, no call
 
    MAINThread(0);                                      // -> linux high-compat mode
+
+   // abuse iSpuAsyncWait mechanism to reduce calls to above function
+   // to make it do larger chunks
+   // note: doing it less often than once per frame causes skips
+   iSpuAsyncWait=1;
   }
 }
 
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