lxdream.org :: lxdream/src/pvr2/pvr2.c r1291:8884bf45f010

filename	src/pvr2/pvr2.c
changeset	1291:8884bf45f010
prev	1282:9f445c5e252b
author	nkeynes
date	Sat Aug 04 08:46:28 2012 +1000 (11 years ago)
permissions	-rw-r--r--
last change	Handle corner case in pvr2_run_slice when we've previously slightly overrun the end of the time slice

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     1.1 --- a/src/pvr2/pvr2.c	Tue Mar 27 08:23:52 2012 +1000
     1.2 +++ b/src/pvr2/pvr2.c	Sat Aug 04 08:46:28 2012 +1000
     1.3 @@ -345,8 +345,12 @@
     1.4  
     1.5  static uint32_t pvr2_run_slice( uint32_t nanosecs ) 
     1.6  {
     1.7 -    pvr2_update_raster_posn( nanosecs );
     1.8 -    pvr2_state.cycles_run = 0;
     1.9 +    if( nanosecs <= pvr2_state.cycles_run ) {
    1.10 +        pvr2_state.cycles_run -= nanosecs;
    1.11 +    } else {
    1.12 +        pvr2_update_raster_posn( nanosecs );
    1.13 +        pvr2_state.cycles_run = 0;
    1.14 +    }
    1.15      return nanosecs;
    1.16  }
    1.17