void gfx_step(void)
{
int i;
static int toogle=0;
ALLEGRO_EVENT ev;
for (i = 0; i < MOVE_FRAMES; i++) {
do {
al_wait_for_event(G.ev, &ev);
switch (ev.type) {
case ALLEGRO_EVENT_KEY_DOWN:
if (toogle ^= 1) al_stop_timer(G.tick);
else al_start_timer(G.tick);
break;
default:
break;
}
} while (ev.type != ALLEGRO_EVENT_TIMER);
gfx_render(i);
}
}
void eng_update()
{
/* variables for fps calculation */
static float elapsed_tm = 0.0f;
static uint frame_cnt = 0;
static int simulated = FALSE;
/* reset frame stack on start of each frame */
struct allocator* tmp_alloc = tsk_get_tmpalloc(0);
A_SAVE(tmp_alloc);
uint64 start_tick = timer_querytick();
g_eng->frame_stats.start_tick = start_tick;
/* check for file changes (dev-mode) */
if (BIT_CHECK(g_eng->params.flags, ENG_FLAG_DEV))
fio_mon_update();
/* update all timers */
timer_update(start_tick);
/* do all the work ... */
float dt = g_eng->timer->dt;
/* resource manager */
rs_update();
/* physics */
if (!BIT_CHECK(g_eng->params.flags, ENG_FLAG_DISABLEPHX)) {
if (simulated)
phx_wait();
phx_update_xforms(simulated); /* gather results */
}
/* update scripting */
sct_update();
/* physics: run simulation */
if (!BIT_CHECK(g_eng->params.flags, ENG_FLAG_DISABLEPHX))
simulated = phx_update_sim(dt);
/* update component system stages */
PRF_OPENSAMPLE("Component (pre-render)");
cmp_update(dt, CMP_UPDATE_STAGE1);
cmp_update(dt, CMP_UPDATE_STAGE2);
cmp_update(dt, CMP_UPDATE_STAGE3);
cmp_update(dt, CMP_UPDATE_STAGE4);
PRF_CLOSESAMPLE();
/* cull and render active scene */
PRF_OPENSAMPLE("Render");
gfx_render();
PRF_CLOSESAMPLE();
PRF_OPENSAMPLE("Component (post-render)");
cmp_update(dt, CMP_UPDATE_STAGE5);
PRF_CLOSESAMPLE();
/* clear update list of components */
cmp_clear_updates();
/* final frame stats calculation */
fl64 ft = timer_calctm(start_tick, timer_querytick());
if (g_eng->fps_lock > 0) {
fl64 target_ft = 1.0 / (fl64)g_eng->fps_lock;
while (ft < target_ft) {
ft = timer_calctm(start_tick, timer_querytick());
}
}
#if defined(_PROFILE_)
/* present samples in _PROFILE_ mode */
prf_presentsamples(ft);
#endif
g_eng->frame_stats.ft = (float)ft;
g_eng->frame_stats.frame ++;
frame_cnt ++;
elapsed_tm += (float)ft;
if (elapsed_tm > 1.0f) {
g_eng->frame_stats.fps = frame_cnt;
frame_cnt = 0;
elapsed_tm = 0.0f;
}
A_LOAD(tmp_alloc);
}
