Nonsignal based interval timing is now working.
This would be a good time to look at cleaning up the code structure a bit.
This commit is contained in:
curt
parent
fa97396939
commit
c24e18e0fc
2 changed files with 55 additions and 18 deletions
|
|
@ -70,10 +70,15 @@ double view_offset = 0.0;
|
|||
double goal_view_offset = 0.0;
|
||||
|
||||
/* Another hack */
|
||||
#define DEFAULT_MODEL_HZ 20
|
||||
#define DEFAULT_TIMER_HZ 20
|
||||
#define DEFAULT_MULTILOOP 6
|
||||
#define DEFAULT_MODEL_HZ (DEFAULT_TIMER_HZ * DEFAULT_MULTILOOP)
|
||||
|
||||
double Simtime;
|
||||
|
||||
/* Another hack */
|
||||
int use_signals = 0;
|
||||
|
||||
|
||||
/**************************************************************************
|
||||
* fgInitVisuals() -- Initialize various GL/view parameters
|
||||
|
|
@ -208,13 +213,19 @@ static void fgUpdateVisuals( void ) {
|
|||
* Update internal time dependent calculations (i.e. flight model)
|
||||
**************************************************************************/
|
||||
|
||||
void fgUpdateTimeDepCalcs() {
|
||||
void fgUpdateTimeDepCalcs(int multi_loop) {
|
||||
struct flight_params *f;
|
||||
|
||||
f = ¤t_aircraft.flight;
|
||||
|
||||
/* update the flight model */
|
||||
if ( multi_loop < 0 ) {
|
||||
printf("updating flight model with default = %d\n", DEFAULT_MULTILOOP);
|
||||
fgFlightModelUpdate(FG_LARCSIM, f, DEFAULT_MULTILOOP);
|
||||
} else {
|
||||
printf("updating flight model with dynamic = %d\n", multi_loop);
|
||||
fgFlightModelUpdate(FG_LARCSIM, f, multi_loop);
|
||||
}
|
||||
|
||||
if ( fabs(goal_view_offset - view_offset) < 0.09 ) {
|
||||
view_offset = goal_view_offset;
|
||||
|
|
@ -244,7 +255,7 @@ void fgUpdateTimeDepCalcs() {
|
|||
|
||||
void fgInitTimeDepCalcs() {
|
||||
/* initialize timer */
|
||||
fgTimerInit( 1.0 / DEFAULT_MODEL_HZ, fgUpdateTimeDepCalcs );
|
||||
fgTimerInit( 1.0 / DEFAULT_TIMER_HZ, fgUpdateTimeDepCalcs );
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -276,11 +287,25 @@ static void fgSceneryDraw() {
|
|||
|
||||
/* What should we do when we have nothing else to do? How about get
|
||||
* ready for the next move?*/
|
||||
static void fgMainLoop( void )
|
||||
{
|
||||
printf("Time interval is = %d\n", fgGetTimeInterval());
|
||||
static void fgMainLoop( void ) {
|
||||
static int remainder = 0;
|
||||
int elapsed, multi_loop;
|
||||
|
||||
elapsed = fgGetTimeInterval();
|
||||
printf("Time interval is = %d, previous remainder is = %d\n", elapsed,
|
||||
remainder);
|
||||
|
||||
multi_loop = ((float)elapsed * 0.001) * DEFAULT_MODEL_HZ;
|
||||
remainder = elapsed - ((multi_loop*1000) / DEFAULT_MODEL_HZ);
|
||||
printf("Model iterations needed = %d, new remainder = %d\n", multi_loop,
|
||||
remainder);
|
||||
|
||||
aircraft_debug(1);
|
||||
fgUpdateVisuals();
|
||||
|
||||
if ( ! use_signals ) {
|
||||
fgUpdateTimeDepCalcs(multi_loop);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -393,11 +418,13 @@ int main( int argc, char *argv[] ) {
|
|||
/* fgSlewInit(-335340,162540, 15, 4.38); */
|
||||
/* fgSlewInit(-398673.28,120625.64, 53, 4.38); */
|
||||
|
||||
fgFlightModelInit(FG_LARCSIM, f, 1.0/(DEFAULT_MODEL_HZ*DEFAULT_MULTILOOP));
|
||||
fgFlightModelInit( FG_LARCSIM, f, 1.0 / DEFAULT_MODEL_HZ );
|
||||
|
||||
printf("Ready to initialize timer\n");
|
||||
/* init timer routines, signals, etc. */
|
||||
if ( use_signals ) {
|
||||
/* init timer routines, signals, etc. Arrange for an alarm
|
||||
signal to be generated, etc. */
|
||||
fgInitTimeDepCalcs();
|
||||
}
|
||||
|
||||
/* build all objects */
|
||||
fgSceneryInit();
|
||||
|
|
@ -443,9 +470,13 @@ int main( int argc, char *argv[] ) {
|
|||
|
||||
|
||||
/* $Log$
|
||||
/* Revision 1.14 1997/06/16 19:32:51 curt
|
||||
/* Starting to add general timer support.
|
||||
/* Revision 1.15 1997/06/17 03:41:10 curt
|
||||
/* Nonsignal based interval timing is now working.
|
||||
/* This would be a good time to look at cleaning up the code structure a bit.
|
||||
/*
|
||||
* Revision 1.14 1997/06/16 19:32:51 curt
|
||||
* Starting to add general timer support.
|
||||
*
|
||||
* Revision 1.13 1997/06/02 03:40:06 curt
|
||||
* A tiny bit more view tweaking.
|
||||
*
|
||||
|
|
|
|||
|
|
@ -35,7 +35,7 @@
|
|||
|
||||
unsigned long int fgSimTime;
|
||||
static struct itimerval t, ot;
|
||||
static void (*callbackfunc)();
|
||||
static void (*callbackfunc)(int multi_loop);
|
||||
|
||||
|
||||
/* This routine catches the SIGALRM */
|
||||
|
|
@ -45,7 +45,9 @@ void fgTimerCatch() {
|
|||
|
||||
/* printf("In fgTimerCatch()\n"); */
|
||||
|
||||
callbackfunc();
|
||||
/* -1 tells the routine to use default interval rather than something
|
||||
dynamically calculated based on frame rate */
|
||||
callbackfunc(-1);
|
||||
|
||||
signal(SIGALRM, fgTimerCatch);
|
||||
}
|
||||
|
|
@ -94,15 +96,19 @@ int fgGetTimeInterval() {
|
|||
ftime(¤t);
|
||||
interval = 1000 * (current.time - last.time) +
|
||||
(current.millitm - last.millitm);
|
||||
last = current;
|
||||
}
|
||||
|
||||
last = current;
|
||||
return(interval);
|
||||
}
|
||||
|
||||
|
||||
/* $Log$
|
||||
/* Revision 1.1 1997/06/16 19:24:20 curt
|
||||
/* Initial revision.
|
||||
/* Revision 1.2 1997/06/17 03:41:10 curt
|
||||
/* Nonsignal based interval timing is now working.
|
||||
/* This would be a good time to look at cleaning up the code structure a bit.
|
||||
/*
|
||||
* Revision 1.1 1997/06/16 19:24:20 curt
|
||||
* Initial revision.
|
||||
*
|
||||
*/
|
||||
|
|
|
|||
Loading…
Reference in a new issue