games/nes: best commit (fixed audio and timing)

[plan9front.git] / sys / src / games / nes / ppu.c

diff --git a/sys/src/games/nes/ppu.c b/sys/src/games/nes/ppu.c
index fd788d56108e58c43783d7a7ded5498829683f3d..3c7c320fdf0c68a1236a39f6e715ca631d3b943e 100644 (file)
--- a/sys/src/games/nes/ppu.c
+++ b/sys/src/games/nes/ppu.c
@@ -255,6 +255,8 @@ flush(void)
        extern Rectangle picr;
        extern Image *tmp, *bg;
        extern Mousectl *mc;
+       static vlong old, diff;
+       vlong new;
        Mouse m;
        Point p;
        int h;
@@ -282,6 +284,15 @@ flush(void)
                loadimage(screen, picr, pic + oflag*8*256*4*scale*scale, 256*h*4*scale*scale);
        flushimage(display, 1);
        memset(pic, sizeof pic, 0);
+       if(audioout() < 0){
+               new = nsec();
+               if(old != 0){
+                       diff = BILLION/60 - (new - old);
+                       if(diff >= MILLION)
+                               sleep(diff/MILLION);
+               }
+               old = new;
+       }
 }
 
 void