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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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+
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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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+ *
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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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+
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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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+
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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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+ /**
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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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+
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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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+
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+ setSettings(settings);
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+ setShowSettings(false);
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+ }
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+
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+ @Override
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+ public void simpleInitApp() {
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+
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+ clContext = null;
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+
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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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+
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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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+
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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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+
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+ updateInfos();
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+
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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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+
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+ private void updateInfos() {
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+
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+
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+ @Override
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+ public void onStartScreen() {
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+
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+ }
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+
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+ @Override
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+ public void onEndScreen() {
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+
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+ }
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+
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+ public static class CustomPlatformChooser implements PlatformChooser {
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+
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+ public CustomPlatformChooser() {}
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+
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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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+
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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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+
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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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+
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+ return Collections.singletonList(device);
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+ }
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+
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+ }
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+}
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shamanDevel