added test for context switching.
Changing the OpenCL platform and device by restarting the application works.
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/*
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* Copyright (c) 2009-2016 jMonkeyEngine
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* * Neither the name of 'jMonkeyEngine' nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package jme3test.opencl;
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import com.jme3.app.SimpleApplication;
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import com.jme3.niftygui.NiftyJmeDisplay;
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import com.jme3.opencl.*;
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import com.jme3.system.AppSettings;
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import de.lessvoid.nifty.Nifty;
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import de.lessvoid.nifty.NiftyEventSubscriber;
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import de.lessvoid.nifty.controls.*;
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import de.lessvoid.nifty.screen.Screen;
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import de.lessvoid.nifty.screen.ScreenController;
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import java.util.Collections;
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import java.util.List;
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import java.util.logging.Level;
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import java.util.logging.Logger;
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/**
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*
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* @author Sebastian Weiss
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*/
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public class TestContextSwitching extends SimpleApplication implements ScreenController {
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private static final Logger LOG = Logger.getLogger(TestContextSwitching.class.getName());
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private Nifty nifty;
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private Label infoLabel;
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private Button applyButton;
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private ListBox<String> platformListBox;
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private ListBox<String> deviceListBox;
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private static String selectedPlatform;
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private static String selectedDevice;
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private Context clContext;
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private static List<? extends Platform> availabePlatforms;
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private Buffer testBuffer;
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private boolean bufferCreated;
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/**
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* @param args the command line arguments
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*/
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public static void main(String[] args) {
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new TestContextSwitching().start();
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}
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public TestContextSwitching() {
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AppSettings settings = new AppSettings(true);
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settings.setOpenCLSupport(true);
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settings.setVSync(true);
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settings.setWidth(800);
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settings.setHeight(600);
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settings.setOpenCLPlatformChooser(CustomPlatformChooser.class);
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//settings.setRenderer(AppSettings.JOGL_OPENGL_FORWARD_COMPATIBLE);
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setSettings(settings);
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setShowSettings(false);
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}
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@Override
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public void simpleInitApp() {
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clContext = null;
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NiftyJmeDisplay niftyDisplay = NiftyJmeDisplay.newNiftyJmeDisplay(
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assetManager,
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inputManager,
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audioRenderer,
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guiViewPort);
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nifty = niftyDisplay.getNifty();
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nifty.fromXml("jme3test/opencl/ContextSwitchingScreen.xml", "Screen", this);
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guiViewPort.addProcessor(niftyDisplay);
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inputManager.setCursorVisible(true);
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flyCam.setEnabled(false);
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}
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@Override
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public void simpleUpdate(float tpf) {
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if (applyButton != null) {
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updateInfos();
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}
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}
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@Override
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@SuppressWarnings("unchecked")
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public void bind(Nifty nifty, Screen screen) {
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applyButton = screen.findNiftyControl("ApplyButton", Button.class);
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platformListBox = screen.findNiftyControl("PlatformListBox", ListBox.class);
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deviceListBox = screen.findNiftyControl("DeviceListBox", ListBox.class);
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infoLabel = screen.findNiftyControl("InfoLabel", Label.class);
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updateInfos();
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platformListBox.clear();
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for (Platform p : availabePlatforms) {
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platformListBox.addItem(p.getName());
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}
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platformListBox.selectItem(selectedPlatform);
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changePlatform(selectedPlatform);
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}
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private void updateInfos() {
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if (testBuffer == null && clContext != null && !bufferCreated) {
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try {
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testBuffer = clContext.createBuffer(1024);
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testBuffer.register();
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LOG.info("Test buffer created");
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} catch (OpenCLException ex) {
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LOG.log(Level.SEVERE, "Unable to create buffer", ex);
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}
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bufferCreated = true;
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}
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Context c = context.getOpenCLContext();
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if (c == clContext) {
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return;
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}
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clContext = c;
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LOG.info("context changed");
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testBuffer = null;
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bufferCreated = false;
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StringBuilder text = new StringBuilder();
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text.append("Current context:\n");
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text.append(" Platform: ").append(clContext.getDevices().get(0).getPlatform().getName()).append("\n");
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text.append(" Device: ").append(clContext.getDevices().get(0).getName()).append("\n");
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text.append(" Profile: ").append(clContext.getDevices().get(0).getProfile()).append("\n");
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text.append(" Memory: ").append(clContext.getDevices().get(0).getGlobalMemorySize()).append(" B\n");
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text.append(" Compute Units: ").append(clContext.getDevices().get(0).getComputeUnits()).append("\n");
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infoLabel.setText(text.toString());
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}
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@NiftyEventSubscriber(id="ApplyButton")
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public void onButton(String id, ButtonClickedEvent event) {
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LOG.log(Level.INFO, "Change context: platorm={0}, device={1}", new Object[]{selectedPlatform, selectedDevice});
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restart();
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}
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private void changePlatform(String platform) {
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selectedPlatform = platform;
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Platform p = null;
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for (Platform p2 : availabePlatforms) {
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if (p2.getName().equals(selectedPlatform)) {
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p = p2;
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break;
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}
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}
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deviceListBox.clear();
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if (p == null) {
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return;
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}
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for (Device d : p.getDevices()) {
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deviceListBox.addItem(d.getName());
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}
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deviceListBox.selectItem(selectedDevice);
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}
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@NiftyEventSubscriber(id="PlatformListBox")
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public void onPlatformChanged(String id, ListBoxSelectionChangedEvent<String> event) {
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String p = event.getSelection().isEmpty() ? null : event.getSelection().get(0);
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LOG.log(Level.INFO, "Selected platform changed to {0}", p);
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selectedPlatform = p;
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changePlatform(p);
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}
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@NiftyEventSubscriber(id="DeviceListBox")
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public void onDeviceChanged(String id, ListBoxSelectionChangedEvent<String> event) {
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String d = event.getSelection().isEmpty() ? null : event.getSelection().get(0);
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LOG.log(Level.INFO, "Selected device changed to {0}", d);
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selectedDevice = d;
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}
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@Override
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public void onStartScreen() {
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}
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@Override
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public void onEndScreen() {
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}
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public static class CustomPlatformChooser implements PlatformChooser {
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public CustomPlatformChooser() {}
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@Override
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public List<? extends Device> chooseDevices(List<? extends Platform> platforms) {
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availabePlatforms = platforms;
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Platform platform = null;
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for (Platform p : platforms) {
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if (p.getName().equals(selectedPlatform)) {
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platform = p;
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break;
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}
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}
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if (platform == null) {
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platform = platforms.get(0);
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}
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selectedPlatform = platform.getName();
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Device device = null;
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for (Device d : platform.getDevices()) {
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if (d.getName().equals(selectedDevice)) {
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device = d;
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break;
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}
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}
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if (device == null) {
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for (Device d : platform.getDevices()) {
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if (d.getDeviceType() == Device.DeviceType.GPU) {
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device = d;
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break;
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}
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}
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}
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if (device == null) {
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device = platform.getDevices().get(0);
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}
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selectedDevice = device.getName();
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return Collections.singletonList(device);
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}
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}
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}
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@ -0,0 +1,27 @@
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<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
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<nifty xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xmlns="http://nifty-gui.lessvoid.com/nifty-gui"
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xsi:schemaLocation="https://raw.githubusercontent.com/void256/nifty-gui/1.4/nifty-core/src/main/resources/nifty.xsd https://raw.githubusercontent.com/void256/nifty-gui/1.4/nifty-core/src/main/resources/nifty.xsd">
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<useStyles filename="nifty-default-styles.xml" />
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<useControls filename="nifty-default-controls.xml" />
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<screen id="Screen" controller="jme3test.opencl.TestContextSwitching">
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<layer id="Layer0" childLayout="vertical">
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<control name="label" id="InfoLabel" text="Current device:\n Platform: \n Device: \n Profile: \n Memory: \n Compute Units: " padding="10px" height="30%" />
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<panel childLayout="horizontal" height="30%" >
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<panel childLayout="vertical" width="50%" >
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<control name="label" text="Select Platform" padding="10px"/>
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<control id="PlatformListBox" name="listBox" vertical="optional" horizontal="optional" displayItems="4" selection="Single" padding="10px" />
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</panel>
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<panel childLayout="vertical" width="50%" >
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<control name="label" text="Select Device" padding="10px"/>
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<control id="DeviceListBox" name="listBox" vertical="optional" horizontal="optional" displayItems="4" selection="Single" padding="10px" />
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</panel>
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</panel>
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<control name="button" id="ApplyButton" label="Change Context" align="center" valing="top" height="5%" padding="10px" />
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<panel childLayout="center" height="30%" />
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</layer>
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</screen>
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</nifty>
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