mirror of https://github.com/BOINC/boinc.git
82 lines
1.9 KiB
C
82 lines
1.9 KiB
C
#include "util.h"
|
|
#include "app_ipc.h"
|
|
#include "shmem.h"
|
|
#include "boinc_api.h"
|
|
#include "graphics2.h"
|
|
|
|
double boinc_max_fps = 30.;
|
|
double boinc_max_gfx_cpu_frac;
|
|
|
|
bool throttled_app_render(int x, int y, double t) {
|
|
static double total_render_time = 0;
|
|
static double time_until_render = 0;
|
|
static double last_now = 0;
|
|
static double elapsed_time = 0;
|
|
double now, t0, t1, diff, frac;
|
|
bool ok_to_render = true;
|
|
|
|
now = dtime();
|
|
diff = now - last_now;
|
|
last_now = now;
|
|
|
|
// ignore interval if negative or more than 1 second
|
|
//
|
|
if ((diff<0) || (diff>1.0)) {
|
|
diff = 0;
|
|
}
|
|
|
|
// enforce frames/sec restriction
|
|
//
|
|
if (boinc_max_fps) {
|
|
time_until_render -= diff;
|
|
if (time_until_render < 0) {
|
|
time_until_render += 1./boinc_max_fps;
|
|
} else {
|
|
ok_to_render = false;
|
|
}
|
|
}
|
|
|
|
// enforce max CPU time restriction
|
|
//
|
|
if (boinc_max_gfx_cpu_frac) {
|
|
elapsed_time += diff;
|
|
if (elapsed_time) {
|
|
frac = total_render_time/elapsed_time;
|
|
if (frac > boinc_max_gfx_cpu_frac) {
|
|
ok_to_render = false;
|
|
}
|
|
}
|
|
}
|
|
|
|
// render if allowed
|
|
//
|
|
if (ok_to_render) {
|
|
if (boinc_max_gfx_cpu_frac) {
|
|
boinc_calling_thread_cpu_time(t0);
|
|
}
|
|
app_graphics_render(x, y, t);
|
|
if (boinc_max_gfx_cpu_frac) {
|
|
boinc_calling_thread_cpu_time(t1);
|
|
total_render_time += t1 - t0;
|
|
}
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void get_window_title(char* buf, int len) {
|
|
APP_INIT_DATA aid;
|
|
boinc_get_init_data(aid);
|
|
if (aid.app_version) {
|
|
snprintf(buf, len,
|
|
"%s version %.2f [workunit: %s]",
|
|
aid.app_name, aid.app_version/100.0, aid.wu_name
|
|
);
|
|
} else {
|
|
snprintf(buf, len,
|
|
"%s [workunit: %s]",
|
|
aid.app_name, aid.wu_name
|
|
);
|
|
}
|
|
}
|