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use lwjgl method to keep constant framerate

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codeanticode
2015-01-23 11:15:47 -05:00
parent 59339fb929
commit 18b7c2c4b8
1 changed files with 32 additions and 31 deletions
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java/libraries/lwjgl/src/processing/lwjgl/PSurfaceLWJGL.java
+32 -31
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@@ -64,7 +64,7 @@ public class PSurfaceLWJGL implements PSurface {
/** As of release 0116, frameRate(60) is called as a default */
protected float frameRateTarget = 60;
protected long frameRatePeriod = 1000000000L / 60L;
// protected long frameRatePeriod = 1000000000L / 60L;
PSurfaceLWJGL(PGraphics graphics) {
this.graphics = graphics;
@@ -327,7 +327,7 @@ public class PSurfaceLWJGL implements PSurface {
@Override
public void setFrameRate(float fps) {
frameRateTarget = fps;
frameRatePeriod = (long) (1000000000.0 / frameRateTarget);
// frameRatePeriod = (long) (1000000000.0 / frameRateTarget);
}
@@ -462,15 +462,15 @@ public class PSurfaceLWJGL implements PSurface {
mousePoller = new MousePoller(sketch);
mousePoller.start();
System.err.println(Mouse.getNativeCursor());
// System.err.println(Mouse.getNativeCursor());
long beforeTime = System.nanoTime();
long overSleepTime = 0L;
// long beforeTime = System.nanoTime();
// long overSleepTime = 0L;
int noDelays = 0;
// int noDelays = 0;
// Number of frames with a delay of 0 ms before the
// animation thread yields to other running threads.
final int NO_DELAYS_PER_YIELD = 15;
// final int NO_DELAYS_PER_YIELD = 15;
// If size un-initialized, might be a Canvas. Call setSize() here since
// we now have a parent object that this Canvas can use as a peer.
@@ -511,30 +511,30 @@ public class PSurfaceLWJGL implements PSurface {
// this is necessary since the drawing is sometimes in a
// separate thread, meaning that the next frame will start
// before the update/paint is completed
long afterTime = System.nanoTime();
long timeDiff = afterTime - beforeTime;
//System.out.println("time diff is " + timeDiff);
long sleepTime = (frameRatePeriod - timeDiff) - overSleepTime;
if (sleepTime > 0) { // some time left in this cycle
try {
Thread.sleep(sleepTime / 1000000L, (int) (sleepTime % 1000000L));
noDelays = 0; // Got some sleep, not delaying anymore
} catch (InterruptedException ex) { }
overSleepTime = (System.nanoTime() - afterTime) - sleepTime;
} else { // sleepTime <= 0; the frame took longer than the period
overSleepTime = 0L;
noDelays++;
if (noDelays > NO_DELAYS_PER_YIELD) {
Thread.yield(); // give another thread a chance to run
noDelays = 0;
}
}
beforeTime = System.nanoTime();
// Display.sync((int)frameRateTarget);
// long afterTime = System.nanoTime();
// long timeDiff = afterTime - beforeTime;
// //System.out.println("time diff is " + timeDiff);
// long sleepTime = (frameRatePeriod - timeDiff) - overSleepTime;
//
// if (sleepTime > 0) { // some time left in this cycle
// try {
// Thread.sleep(sleepTime / 1000000L, (int) (sleepTime % 1000000L));
// noDelays = 0; // Got some sleep, not delaying anymore
// } catch (InterruptedException ex) { }
//
// overSleepTime = (System.nanoTime() - afterTime) - sleepTime;
//
// } else { // sleepTime <= 0; the frame took longer than the period
// overSleepTime = 0L;
// noDelays++;
//
// if (noDelays > NO_DELAYS_PER_YIELD) {
// Thread.yield(); // give another thread a chance to run
// noDelays = 0;
// }
// }
// beforeTime = System.nanoTime();
Display.sync((int)frameRateTarget);
if (Display.isCloseRequested()) break;
}
@@ -566,6 +566,7 @@ public class PSurfaceLWJGL implements PSurface {
@Override
public void setVisible(boolean visible) {
// Display.isVisible()
// Display.setVisible(visible);
}