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#include <allegro.h>
#include <time.h>
volatile int timerCounter = 0;
static void timerCounterUpdater(){
timerCounter++;
} END_OF_STATIC_FUNCTION(timerCounterUpdater);
const unsigned int SCREEN_W = 800;
const unsigned int SCREEN_H = 600;
int main() {
allegro_init();
install_keyboard();
install_timer();
vsync();
LOCK_FUNCTION(timerCounterUpdater);
LOCK_VARIABLE(timerCounter);
install_int_ex(timerCounterUpdater, BPS_TO_TIMER(60));
set_color_depth(32);
set_gfx_mode(GFX_AUTODETECT_FULLSCREEN, 800, 800, 0, 0);
BITMAP * doublebuffer = create_bitmap(SCREEN_H, SCREEN_W);
BITMAP * logo = load_bitmap("allegro.tga", NULL);
bool needsRefresh;
unsigned int cur_skip = 0;
unsigned int max_skip = 6;
if (timerCounter > 0) {
do {
timerCounter--;
cur_skip++;
if(cur_skip >= max_skip) {
timerCounter = 0;
break;
}
} while(timerCounter > 0);
needsRefresh = true;
}
if (needsRefresh) {
acquire_bitmap(doublebuffer);
clear(doublebuffer);
blit(logo, doublebuffer, 0, 0, 0, 0, logo->w, logo->h);
release_bitmap(doublebuffer);
blit(doublebuffer, screen, 0, 0, 0, 0, SCREEN_W, SCREEN_H);
needsRefresh = false;
}
} END_OF_MAIN();
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