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-rw-r--r--src/jogl/classes/jogamp/opengl/FPSCounterImpl.java137
1 files changed, 137 insertions, 0 deletions
diff --git a/src/jogl/classes/jogamp/opengl/FPSCounterImpl.java b/src/jogl/classes/jogamp/opengl/FPSCounterImpl.java
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+++ b/src/jogl/classes/jogamp/opengl/FPSCounterImpl.java
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+/**
+ * Copyright 2011 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this list of
+ * conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice, this list
+ * of conditions and the following disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+package jogamp.opengl;
+
+import java.io.PrintStream;
+import javax.media.opengl.FPSCounter;
+
+/**
+ * Default implementation of FPSCounter to be used for FPSCounter implementing renderer.
+ */
+public class FPSCounterImpl implements FPSCounter {
+ private int fpsUpdateFramesInterval;
+ private PrintStream fpsOutputStream ;
+ private long fpsStartTime, fpsLastUpdateTime, fpsLastPeriod, fpsTotalDuration;
+ private int fpsTotalFrames;
+ private float fpsLast, fpsTotal;
+
+ /** Creates a disabled instance */
+ public FPSCounterImpl() {
+ setUpdateFPSFrames(0, null);
+ }
+
+ /**
+ * Increases total frame count and updates values if feature is enabled and
+ * update interval is reached.<br>
+ *
+ * Shall be called by actual FPSCounter implementing renderer, after display a new frame.
+ *
+ */
+ public final synchronized void tickFPS() {
+ fpsTotalFrames++;
+ if(fpsUpdateFramesInterval>0 && fpsTotalFrames%fpsUpdateFramesInterval == 0) {
+ final long now = System.currentTimeMillis();
+ fpsLastPeriod = now - fpsLastUpdateTime;
+ fpsLastPeriod = Math.max(fpsLastPeriod, 1); // div 0
+ fpsLast = ( (float)fpsUpdateFramesInterval * 1000f ) / ( (float) fpsLastPeriod ) ;
+
+ fpsTotalDuration = now - fpsStartTime;
+ fpsTotalDuration = Math.max(fpsTotalDuration, 1); // div 0
+ fpsTotal= ( (float)fpsTotalFrames * 1000f ) / ( (float) fpsTotalDuration ) ;
+
+ if(null != fpsOutputStream) {
+ fpsOutputStream.println(toString());
+ }
+
+ fpsLastUpdateTime = now;
+ }
+ }
+
+ public StringBuilder toString(StringBuilder sb) {
+ if(null==sb) {
+ sb = new StringBuilder();
+ }
+ String fpsLastS = String.valueOf(fpsLast);
+ fpsLastS = fpsLastS.substring(0, fpsLastS.indexOf('.') + 2);
+ String fpsTotalS = String.valueOf(fpsTotal);
+ fpsTotalS = fpsTotalS.substring(0, fpsTotalS.indexOf('.') + 2);
+ sb.append(fpsTotalDuration/1000 +" s: "+ fpsUpdateFramesInterval+" f / "+ fpsLastPeriod+" ms, " + fpsLastS+" fps, "+ fpsLastPeriod/fpsUpdateFramesInterval+" ms/f; "+
+ "total: "+ fpsTotalFrames+" f, "+ fpsTotalS+ " fps, "+ fpsTotalDuration/fpsTotalFrames+" ms/f");
+ return sb;
+ }
+
+ public String toString() {
+ return toString(null).toString();
+ }
+
+ public final synchronized void setUpdateFPSFrames(int frames, PrintStream out) {
+ fpsUpdateFramesInterval = frames;
+ fpsOutputStream = out;
+ resetFPSCounter();
+ }
+
+ public final synchronized void resetFPSCounter() {
+ fpsStartTime = System.currentTimeMillis(); // overwrite startTime to real init one
+ fpsLastUpdateTime = fpsStartTime;
+ fpsLastPeriod = 0;
+ fpsTotalFrames = 0;
+ fpsLast = 0f; fpsTotal = 0f;
+ }
+
+ public final synchronized int getUpdateFPSFrames() {
+ return fpsUpdateFramesInterval;
+ }
+
+ public final synchronized long getFPSStartTime() {
+ return fpsStartTime;
+ }
+
+ public final synchronized long getLastFPSUpdateTime() {
+ return fpsLastUpdateTime;
+ }
+
+ public final synchronized long getLastFPSPeriod() {
+ return fpsLastPeriod;
+ }
+
+ public final synchronized float getLastFPS() {
+ return fpsLast;
+ }
+
+ public final synchronized int getTotalFPSFrames() {
+ return fpsTotalFrames;
+ }
+
+ public final synchronized long getTotalFPSDuration() {
+ return fpsTotalDuration;
+ }
+
+ public final synchronized float getTotalFPS() {
+ return fpsTotal;
+ }
+}