mirror of
https://github.com/JorjBauer/aiie.git
synced 2024-12-27 14:30:22 +00:00
add delay during drawing to step down, targeting 40-60 FPS
This commit is contained in:
parent
691b2de8bb
commit
2060f366e5
29
sdl/aiie.cpp
29
sdl/aiie.cpp
@ -232,6 +232,7 @@ int main(int argc, char *argv[])
|
||||
}
|
||||
|
||||
while (1) {
|
||||
static uint32_t usleepcycles = 16384; // step-down for display drawing. FIXME: this constant works well for *my* machine. Dynamically generate?
|
||||
static uint32_t ctr = 0;
|
||||
if (++ctr == 0) {
|
||||
printf("hit: %llu; miss: %llu; pct: %f\n", hitcount, misscount, (double)misscount / (double)(misscount + hitcount));
|
||||
@ -254,20 +255,32 @@ int main(int argc, char *argv[])
|
||||
g_keyboard->maintainKeyboard();
|
||||
g_display->drawBatteryStatus(100);
|
||||
|
||||
#ifdef SHOWFPS
|
||||
// calculate FPS & dynamically step up/down as necessary
|
||||
static time_t startAt = time(NULL);
|
||||
static uint32_t loopCount = 0;
|
||||
loopCount++;
|
||||
|
||||
time_t lenSecs = time(NULL) - startAt;
|
||||
if (lenSecs >= 10) {
|
||||
uint32_t lenSecs = time(NULL) - startAt;
|
||||
if (lenSecs >= 5) {
|
||||
float fps = loopCount / lenSecs;
|
||||
#ifdef SHOWFPS
|
||||
char buf[25];
|
||||
sprintf(buf, "%lu FPS", loopCount / lenSecs);
|
||||
sprintf(buf, "%f FPS", fps);
|
||||
g_display->debugMsg(buf);
|
||||
startAt = time(NULL);
|
||||
loopCount = 0;
|
||||
}
|
||||
#endif
|
||||
if (fps > 60) {
|
||||
usleepcycles *= 2;
|
||||
} else if (fps < 40) {
|
||||
usleepcycles /= 2;
|
||||
}
|
||||
|
||||
// reset the counter & we'll adjust again in 5 seconds
|
||||
loopCount = 0;
|
||||
startAt = time(NULL);
|
||||
}
|
||||
if (usleepcycles >= 2) {
|
||||
usleep(usleepcycles);
|
||||
}
|
||||
|
||||
#ifdef SHOWPC
|
||||
{
|
||||
char buf[25];
|
||||
|
Loading…
Reference in New Issue
Block a user