vsync in mga/xmga

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@48 b3059339-0415-0410-9bf9-f77b7e298cf2

1 files changed, 9 insertions, 9 deletions

diff --git a/libvo/vo_xmga.c b/libvo/vo_xmga.c
index c84f7778c3..ee91a2e231 100644
--- a/libvo/vo_xmga.c
+++ b/libvo/vo_xmga.c
@@ -55,9 +55,7 @@ static vo_info_t vo_info =
 
 static mga_vid_config_t       mga_vid_config;
 static uint8_t              * vid_data;
-static uint8_t              * frame0;
-static uint8_t              * frame1;
-static int                    next_frame=0;
+static uint8_t              * frames[4];
 static int                    f;
 
 static Display              * mDisplay;
@@ -277,12 +275,14 @@ static uint32_t init( uint32_t width, uint32_t height, uint32_t d_width, uint32_
 #endif
 
  frame_size=( ( width + 31 ) & ~31 ) * height + ( ( ( width + 31 ) & ~31 ) * height ) / 2;
- frame_mem=(char*)mmap( 0,frame_size*2,PROT_WRITE,MAP_SHARED,f,0 );
- frame0=frame_mem;
- frame1=frame_mem + frame_size;
- vid_data=frame0;
- next_frame=0;
- memset( frame_mem,0x80,frame_size * 2 );
+ frame_mem=(char*)mmap( 0,frame_size*4,PROT_WRITE,MAP_SHARED,f,0 );
+ frames[0] = frame_mem;
+ frames[1] = frame_mem + 1*frame_size;
+ frames[2] = frame_mem + 2*frame_size;
+ frames[3] = frame_mem + 3*frame_size;
+ mga_next_frame=0;
+ vid_data=frames[mga_next_frame];
+ memset( frame_mem,0x80,frame_size * 4 );
 
  XFlush( mDisplay );
  XSync( mDisplay,False );