shithub: 3dee

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med,solar,vis: better render loops

--- a/med.c

+++ b/med.c

@@ -501,6 +501,10 @@

 			nbsend(drawc, nil);

 			t0 = nanosec();

+		}else{

+			Δt = HZ2NS(60) - Δt;

+			if(Δt >= 1000000ULL)

+				sleep(Δt/1000000ULL);

 		}

 	}

 }

--- a/solar.c

+++ b/solar.c

@@ -584,6 +584,10 @@

 			unlockdisplay(display);

 			nbsend(drawc, nil);

 			t0 = nanosec();

+		}else{

+			Δt = HZ2NS(60) - Δt;

+			if(Δt >= 1000000ULL)

+				sleep(Δt/1000000ULL);

 		}

 	}

 }

--- a/vis.c

+++ b/vis.c

@@ -289,8 +289,9 @@

 			prim->mtl = mtl;

 	}

-	time = t0 = nanosec();

+	t0 = nanosec();

 	for(;;){

+		time = nanosec();

 		setuniform(shader, "time", VANumber, &time);

 		qlock(&scenelk);

@@ -312,9 +313,12 @@

 				if((mtl->diffusemap->image = readmemimage(fd)) == nil)

 					sysfatal("readmemimage: %r");

 			}

-			time = t0 = nanosec();

-		}else

-			time = t0 + Δt;

+			t0 = nanosec();

+		}else if(!doprof){

+			Δt = HZ2NS(60) - Δt;

+			if(Δt >= 1000000ULL)

+				sleep(Δt/1000000ULL);

+		}

 	}

 }

-- 

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