Java tutorial
/******************************************************************************* * Copyright 2011 See AUTHORS file. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. ******************************************************************************/ package com.badlogic.gdx.backends.lwjgl; import java.awt.GraphicsDevice; import java.awt.GraphicsEnvironment; import java.util.ArrayList; import com.badlogic.gdx.Application; import com.badlogic.gdx.Files.FileType; import com.badlogic.gdx.Graphics; import com.badlogic.gdx.Graphics.DisplayMode; import com.badlogic.gdx.graphics.Color; import com.badlogic.gdx.utils.Array; public class LwjglApplicationConfiguration { /** If true, OpenAL will not be used. This means {@link Application#getAudio()} returns null and the gdx-openal.jar and OpenAL * natives are not needed. */ static public boolean disableAudio; /** whether to attempt use OpenGL ES 3.0. **/ public boolean useGL30 = false; /** number of bits per color channel **/ public int r = 8, g = 8, b = 8, a = 8; /** number of bits for depth and stencil buffer **/ public int depth = 16, stencil = 0; /** number of samples for MSAA **/ public int samples = 0; /** width & height of application window **/ public int width = 640, height = 480; /** x & y of application window, -1 for center **/ public int x = -1, y = -1; /** fullscreen **/ public boolean fullscreen = false; /** used to emulate screen densities **/ public int overrideDensity = -1; /** whether to enable vsync, can be changed at runtime via {@link Graphics#setVSync(boolean)} **/ public boolean vSyncEnabled = true; /** title of application **/ public String title; /** whether to call System.exit() on tear-down. Needed for Webstarts on some versions of Mac OS X it seems **/ public boolean forceExit = true; /** whether the window is resizable **/ public boolean resizable = true; /** the maximum number of sources that can be played simultaneously */ public int audioDeviceSimultaneousSources = 16; /** the audio device buffer size in samples **/ public int audioDeviceBufferSize = 512; /** the audio device buffer count **/ public int audioDeviceBufferCount = 9; public Color initialBackgroundColor = Color.BLACK; /** Target framerate when the window is in the foreground. The CPU sleeps as needed. Use 0 to never sleep. **/ public int foregroundFPS = 60; /** Target framerate when the window is not in the foreground. The CPU sleeps as needed. Use 0 to never sleep, -1 to not render. **/ public int backgroundFPS = 60; /** Allows software OpenGL rendering if hardware acceleration was not available. * @see LwjglGraphics#isSoftwareMode() */ public boolean allowSoftwareMode = false; /** Preferences directory on the desktop. Default is ".prefs/". */ public String preferencesDirectory = ".prefs/"; /** Callback used when trying to create a display, can handle failures, default value is null (disabled) */ public LwjglGraphics.SetDisplayModeCallback setDisplayModeCallback; Array<String> iconPaths = new Array(); Array<FileType> iconFileTypes = new Array(); /** Adds a window icon. Icons are tried in the order added, the first one that works is used. Typically three icons should be * provided: 128x128 (for Mac), 32x32 (for Windows and Linux), and 16x16 (for Windows). */ public void addIcon(String path, FileType fileType) { iconPaths.add(path); iconFileTypes.add(fileType); } /** Sets the r, g, b and a bits per channel based on the given {@link DisplayMode} and sets the fullscreen flag to true. * @param mode */ public void setFromDisplayMode(DisplayMode mode) { this.width = mode.width; this.height = mode.height; if (mode.bitsPerPixel == 16) { this.r = 5; this.g = 6; this.b = 5; this.a = 0; } if (mode.bitsPerPixel == 24) { this.r = 8; this.g = 8; this.b = 8; this.a = 0; } if (mode.bitsPerPixel == 32) { this.r = 8; this.g = 8; this.b = 8; this.a = 8; } this.fullscreen = true; } protected static class LwjglApplicationConfigurationDisplayMode extends DisplayMode { protected LwjglApplicationConfigurationDisplayMode(int width, int height, int refreshRate, int bitsPerPixel) { super(width, height, refreshRate, bitsPerPixel); } } public static DisplayMode getDesktopDisplayMode() { GraphicsEnvironment genv = GraphicsEnvironment.getLocalGraphicsEnvironment(); GraphicsDevice device = genv.getDefaultScreenDevice(); java.awt.DisplayMode mode = device.getDisplayMode(); return new LwjglApplicationConfigurationDisplayMode(mode.getWidth(), mode.getHeight(), mode.getRefreshRate(), mode.getBitDepth()); } public static DisplayMode[] getDisplayModes() { GraphicsEnvironment genv = GraphicsEnvironment.getLocalGraphicsEnvironment(); GraphicsDevice device = genv.getDefaultScreenDevice(); java.awt.DisplayMode desktopMode = device.getDisplayMode(); java.awt.DisplayMode[] displayModes = device.getDisplayModes(); ArrayList<DisplayMode> modes = new ArrayList<DisplayMode>(); int idx = 0; for (java.awt.DisplayMode mode : displayModes) { boolean duplicate = false; for (int i = 0; i < modes.size(); i++) { if (modes.get(i).width == mode.getWidth() && modes.get(i).height == mode.getHeight() && modes.get(i).bitsPerPixel == mode.getBitDepth()) { duplicate = true; break; } } if (duplicate) continue; if (mode.getBitDepth() != desktopMode.getBitDepth()) continue; modes.add(new LwjglApplicationConfigurationDisplayMode(mode.getWidth(), mode.getHeight(), mode.getRefreshRate(), mode.getBitDepth())); } return modes.toArray(new DisplayMode[modes.size()]); } }