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