2004-02-04 17:06:18 -05:00
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/*
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* Copyright (c) 2002-2004 Light Weight Java Game Library Project
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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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2003-03-27 17:32:48 -05:00
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*
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2004-02-04 17:06:18 -05:00
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* * Neither the name of 'Light Weight Java Game Library' nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software 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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2003-03-27 17:32:48 -05:00
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*/
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2004-02-04 17:06:18 -05:00
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2003-08-04 06:09:40 -04:00
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package org.lwjgl.opengl;
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2003-03-27 17:32:48 -05:00
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/**
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2003-08-03 18:05:40 -04:00
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* This is the abstract class for a Window in LWJGL. LWJGL windows have some
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2003-03-27 17:32:48 -05:00
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* peculiar characteristics:
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*
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* - width and height are always fixed and cannot be changed
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* - the position of the window may or may not be programmable but once specified
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* cannot be changed programmatically
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2003-03-27 17:32:48 -05:00
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* - the window may be closeable by the user or operating system, and may be minimized
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* by the user or operating system
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2003-03-27 17:46:25 -05:00
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* - only one window may ever be open at once
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2003-03-27 17:32:48 -05:00
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* - the operating system may or may not be able to do fullscreen or windowed windows.
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*
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* @author foo
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*/
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2003-08-04 06:09:40 -04:00
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2004-02-08 15:41:00 -05:00
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import java.util.HashSet;
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2003-08-04 06:09:40 -04:00
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import org.lwjgl.Display;
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import org.lwjgl.Sys;
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2003-08-03 18:05:40 -04:00
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public final class Window {
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2003-03-27 17:32:48 -05:00
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static {
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System.loadLibrary(Sys.getLibraryName());
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2003-10-01 05:33:22 -04:00
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}
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2003-09-29 05:26:20 -04:00
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2003-03-28 14:02:24 -05:00
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/** Whether the window is currently created, ie. has a native peer */
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2003-08-02 13:11:33 -04:00
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private static boolean created;
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/** X coordinate of the window */
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private static int x;
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2003-03-27 17:32:48 -05:00
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/**
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* Y coordinate of the window. Y in window coordinates is from the top of the display down,
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* unlike GL, where it is typically at the bottom of the display.
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*/
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private static int y;
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2003-03-27 17:32:48 -05:00
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/** Width of the window */
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private static int width;
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/** Height of the window */
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private static int height;
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/** Title of the window */
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private static String title;
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/** Fullscreen */
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private static boolean fullscreen;
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2004-02-15 10:27:02 -05:00
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2003-10-20 10:17:47 -04:00
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/** Vsync */
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private static boolean vsync;
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2003-08-03 18:05:40 -04:00
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2003-08-04 19:00:49 -04:00
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/** Tracks VBO state for the window context */
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private static VBOTracker vbo_tracker;
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2003-11-03 06:23:56 -05:00
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/** A unique context object, so we can track different contexts between creates() and destroys() */
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private static Window context;
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2003-03-27 17:32:48 -05:00
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/**
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* Only constructed by ourselves
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*/
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private Window() {
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}
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/**
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* @return the width of the window
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*/
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public static int getWidth() {
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assert isCreated() : "Cannot get width on uncreated window";
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return width;
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}
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2003-08-03 18:05:40 -04:00
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2003-03-27 17:32:48 -05:00
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/**
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* @return the height of the window
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*/
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2003-08-02 13:11:33 -04:00
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public static int getHeight() {
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2003-08-06 15:46:34 -04:00
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assert isCreated() : "Cannot get height on uncreated window";
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2003-03-27 17:32:48 -05:00
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return height;
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}
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2003-08-03 18:05:40 -04:00
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2003-03-27 17:32:48 -05:00
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/**
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* @return the title of the window
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*/
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public static String getTitle() {
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assert isCreated() : "Cannot get title on uncreated window";
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return title;
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}
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2003-08-06 15:46:34 -04:00
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2003-09-26 09:59:50 -04:00
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/**
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* @return whether this window is in fullscreen mode
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*/
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public static boolean isFullscreen() {
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assert isCreated() : "Cannot determine state of uncreated window";
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return fullscreen;
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}
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2003-08-03 18:05:40 -04:00
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2003-03-27 17:32:48 -05:00
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/**
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* Set the title of the window. This may be ignored by the underlying OS.
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* @param newTitle The new window title
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*/
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2003-08-02 13:11:33 -04:00
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public static void setTitle(String newTitle) {
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assert isCreated() : "Cannot set title of uncreated window";
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title = newTitle;
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2003-03-30 14:26:39 -05:00
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nSetTitle(title);
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}
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2003-08-03 18:05:40 -04:00
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2003-03-27 17:32:48 -05:00
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/**
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* Native implementation of setTitle(). This will read the window's title member
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* and stash it in the native title of the window.
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*/
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2003-08-02 13:11:33 -04:00
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private static native void nSetTitle(String title);
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2003-07-28 06:09:58 -04:00
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/**
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* @return true if the user or operating system has asked the window to close
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*/
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2003-08-02 13:11:33 -04:00
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public static boolean isCloseRequested() {
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2003-08-06 15:46:34 -04:00
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assert isCreated() : "Cannot determine state of uncreated window";
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2003-10-01 05:33:22 -04:00
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return nIsCloseRequested();
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2003-07-28 06:09:58 -04:00
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}
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2003-08-04 06:09:40 -04:00
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private static native boolean nIsCloseRequested();
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2003-03-27 17:32:48 -05:00
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/**
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* @return true if the window is minimized or otherwise not visible
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*/
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2003-08-02 13:11:33 -04:00
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public static boolean isMinimized() {
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assert isCreated() : "Cannot determine state of uncreated window";
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2003-08-04 06:09:40 -04:00
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return nIsMinimized();
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}
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2003-08-04 06:09:40 -04:00
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private static native boolean nIsMinimized();
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2003-07-28 06:09:58 -04:00
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/**
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* @return true if window is focused
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*/
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2003-08-02 13:11:33 -04:00
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public static boolean isFocused() {
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assert isCreated() : "Cannot determine state of uncreated window";
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return nIsFocused();
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2003-07-28 06:09:58 -04:00
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}
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2003-08-04 06:09:40 -04:00
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private static native boolean nIsFocused();
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2003-06-04 17:49:46 -04:00
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/**
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* Minimize the game and allow the operating system's default display to become
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2003-06-12 10:08:10 -04:00
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* visible. It is the responsibility of LWJGL's native code to restore the display
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2003-06-04 17:49:46 -04:00
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* to its normal display settings.
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*
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* If the display is already minimized then this is a no-op.
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*/
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2003-08-02 13:11:33 -04:00
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public static native void minimize();
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2003-06-04 17:49:46 -04:00
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/**
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2003-06-12 10:08:10 -04:00
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* Restore the game and hide the operating system away. It is the responsibility of
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2003-06-04 17:49:46 -04:00
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* LWJGL's native code to restore the display to its game display settings.
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*
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* If the display is not minimized then this is a no-op/
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*/
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2003-08-02 13:11:33 -04:00
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public static native void restore();
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2003-03-27 17:32:48 -05:00
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/**
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* Determine if the window's contents have been damaged by external events.
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* If you are writing a straightforward game rendering loop and simply paint
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* every frame regardless, you can ignore this flag altogether. If you are
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* trying to be kind to other processes you can check this flag and only
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* redraw when it returns true. The flag is cleared when you call paint().
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*
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* @return true if the window has been damaged by external changes
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* and needs to repaint itself
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*/
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2003-08-02 13:11:33 -04:00
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public static boolean isDirty() {
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2003-08-06 15:46:34 -04:00
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assert isCreated() : "Cannot determine state of uncreated window";
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2003-08-04 06:09:40 -04:00
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return nIsDirty();
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2003-03-27 17:32:48 -05:00
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}
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2003-08-03 18:05:40 -04:00
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2003-08-04 06:09:40 -04:00
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private static native boolean nIsDirty();
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2003-03-27 17:32:48 -05:00
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/**
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* Paint the window. This clears the dirty flag and swaps the buffers.
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*/
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2003-08-02 13:11:33 -04:00
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public static void paint() {
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assert isCreated() : "Cannot paint uncreated window";
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2003-08-03 18:05:40 -04:00
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swapBuffers();
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}
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2003-03-30 14:26:39 -05:00
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2003-03-28 14:02:24 -05:00
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/**
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* Swap double buffers.
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2003-03-28 14:02:24 -05:00
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*/
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2003-08-03 18:05:40 -04:00
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private static native void swapBuffers();
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/**
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* Create a fullscreen window. If the underlying OS does not
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* support fullscreen mode, then a window will be created instead. If this
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* fails too then an Exception will be thrown.
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*
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* @param title The title of the window
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* @param bpp Minimum bits per pixel
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* @param alpha Minimum bits per pixel in alpha buffer
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* @param depth Minimum bits per pixel in depth buffer
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* @param stencil Minimum bits per pixel in stencil buffer
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2004-02-15 10:27:02 -05:00
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* @param samples Minimum samples in multisample buffer (corresponds to GL_SAMPLES_ARB in GL_ARB_multisample spec).
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Pass 0 to disable multisampling. This parameter is ignored if GL_ARB_multisample is not supported.
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* @throws Exception if the window could not be created for any reason; typically because
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* the minimum requirements could not be met satisfactorily
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*/
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2004-02-15 10:27:02 -05:00
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public static void create(String title, int bpp, int alpha, int depth, int stencil, int samples) throws Exception {
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if (isCreated())
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throw new Exception("Only one LWJGL window may be instantiated at any one time.");
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2004-02-15 10:27:02 -05:00
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Window.fullscreen = true;
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2003-08-03 18:05:40 -04:00
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Window.x = 0;
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Window.y = 0;
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Window.width = Display.getWidth();
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Window.height = Display.getHeight();
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2004-02-15 10:27:02 -05:00
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Window.title = title;
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createWindow(bpp, alpha, depth, stencil, samples);
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}
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2003-03-28 14:02:24 -05:00
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/**
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2003-08-03 18:05:40 -04:00
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* Create a window. If the underlying OS does not have "floating" windows, then a fullscreen
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* display will be created instead. If this fails too then an Exception will be thrown.
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* If the window is created fullscreen, then its size may not match the specified size
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* here.
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*
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* @param title The title of the window
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* @param x The position of the window on the x axis. May be ignored.
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* @param y The position of the window on the y axis. May be ignored.
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* @param width The width of the window's client area
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* @param height The height of the window's client area
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* @param bpp Minimum bits per pixel
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* @param alpha Minimum bits per pixel in alpha buffer
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* @param depth Minimum bits per pixel in depth buffer
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* @param stencil Minimum bits per pixel in stencil buffer
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2004-02-15 10:27:02 -05:00
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* @param samples Minimum samples in multisample buffer (corresponds to GL_SAMPLES_ARB in GL_ARB_multisample spec).
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Pass 0 to disable multisampling. This parameter is ignored if GL_ARB_multisample is not supported.
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2003-08-03 18:05:40 -04:00
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* @throws Exception if the window could not be created for any reason; typically because
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* the minimum requirements could not be met satisfactorily
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*/
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2004-02-15 10:27:02 -05:00
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public static void create(String title, int x, int y, int width, int height, int bpp, int alpha, int depth, int stencil, int samples)
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2003-08-03 18:05:40 -04:00
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throws Exception {
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if (isCreated())
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throw new Exception("Only one LWJGL window may be instantiated at any one time.");
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2004-02-15 10:27:02 -05:00
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Window.fullscreen = false;
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2003-08-03 18:05:40 -04:00
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Window.x = x;
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Window.y = y;
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Window.width = width;
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Window.height = height;
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Window.title = title;
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2004-02-15 10:27:02 -05:00
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createWindow(bpp, alpha, depth, stencil, samples);
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2003-08-03 18:05:40 -04:00
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Create the native window peer.
|
2003-03-28 14:02:24 -05:00
|
|
|
* @throws Exception
|
|
|
|
*/
|
2003-08-03 18:05:40 -04:00
|
|
|
private static native void nCreate(
|
|
|
|
String title,
|
|
|
|
int x,
|
|
|
|
int y,
|
|
|
|
int width,
|
|
|
|
int height,
|
|
|
|
boolean fullscreen,
|
|
|
|
int bpp,
|
|
|
|
int alpha,
|
|
|
|
int depth,
|
2003-09-26 09:59:50 -04:00
|
|
|
int stencil,
|
2004-02-15 10:27:02 -05:00
|
|
|
int samples,
|
2003-09-26 09:59:50 -04:00
|
|
|
HashSet extensions)
|
2003-08-03 18:05:40 -04:00
|
|
|
throws Exception;
|
|
|
|
|
2004-02-15 10:27:02 -05:00
|
|
|
private static void createWindow(int bpp, int alpha, int depth, int stencil, int samples) throws Exception {
|
2003-09-26 09:59:50 -04:00
|
|
|
HashSet extensions = new HashSet();
|
2004-02-15 10:27:02 -05:00
|
|
|
nCreate(title, x, y, width, height, fullscreen, bpp, alpha, depth, stencil, samples, extensions);
|
2003-09-26 09:59:50 -04:00
|
|
|
GLCaps.determineAvailableExtensions(extensions);
|
2003-11-03 06:23:56 -05:00
|
|
|
context = new Window();
|
2004-02-05 11:27:22 -05:00
|
|
|
created = true;
|
2003-08-04 19:00:49 -04:00
|
|
|
}
|
|
|
|
|
2003-03-27 17:32:48 -05:00
|
|
|
/**
|
|
|
|
* Destroy the window.
|
|
|
|
*/
|
2003-08-03 18:05:40 -04:00
|
|
|
public static void destroy() {
|
2003-03-28 14:02:24 -05:00
|
|
|
if (!created)
|
|
|
|
return;
|
2003-08-03 18:05:40 -04:00
|
|
|
nDestroy();
|
2003-03-28 14:02:24 -05:00
|
|
|
created = false;
|
2003-11-03 06:23:56 -05:00
|
|
|
context = null;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* @return the unique Window context
|
|
|
|
*/
|
|
|
|
public static final Window getContext() {
|
|
|
|
return context;
|
2003-03-27 17:46:25 -05:00
|
|
|
}
|
2003-08-03 18:05:40 -04:00
|
|
|
|
2003-03-27 17:32:48 -05:00
|
|
|
/**
|
2003-08-03 18:05:40 -04:00
|
|
|
* Destroy the native window peer.
|
2003-03-27 17:32:48 -05:00
|
|
|
*/
|
2003-08-03 18:05:40 -04:00
|
|
|
private native static void nDestroy();
|
|
|
|
|
2003-03-27 18:01:14 -05:00
|
|
|
/**
|
2003-03-28 14:02:24 -05:00
|
|
|
* @return true if the window's native peer has been created
|
2003-03-27 18:01:14 -05:00
|
|
|
*/
|
2003-08-02 13:11:33 -04:00
|
|
|
public static boolean isCreated() {
|
2003-03-28 14:02:24 -05:00
|
|
|
return created;
|
2003-03-27 18:01:14 -05:00
|
|
|
}
|
2003-08-03 18:05:40 -04:00
|
|
|
|
2003-03-27 17:32:48 -05:00
|
|
|
/**
|
2003-08-17 05:27:32 -04:00
|
|
|
* Updates the windows internal state. This must be called at least once per video frame
|
2003-03-27 17:32:48 -05:00
|
|
|
* to handle window close requests, moves, paints, etc.
|
|
|
|
*/
|
2003-08-17 14:40:58 -04:00
|
|
|
public static native void update();
|
2003-10-20 10:17:47 -04:00
|
|
|
|
|
|
|
/**
|
|
|
|
* Determines to the best of the platform's ability whether monitor vysnc is enabled on
|
|
|
|
* this window. The failsafe assumption is that when vsync cannot be determined, this
|
|
|
|
* method returns false, and you should rely on using a hires timer to throttle your
|
|
|
|
* framerate rather than relying on monitor sync (even if monitor sync is actually working).
|
|
|
|
* Therefore you can guarantee that if we return true from this method that we're pretty
|
|
|
|
* certain vsync is enabled.
|
|
|
|
* @return boolean
|
|
|
|
*/
|
|
|
|
public static boolean isVSyncEnabled() {
|
|
|
|
assert isCreated() : "Cannot determine sync of uncreated window";
|
|
|
|
return nIsVSyncEnabled();
|
|
|
|
}
|
|
|
|
|
|
|
|
private static native boolean nIsVSyncEnabled();
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Enable or disable vertical monitor synchronization. This call is a best-attempt at changing
|
|
|
|
* the vertical refresh synchronization of the monitor, and is not guaranteed to be successful.
|
|
|
|
* To check whether the call <em>might</em> have been successful, call isVSyncEnabled().
|
|
|
|
* @param sync true to synchronize; false to ignore synchronization
|
|
|
|
*/
|
|
|
|
public static void setVSyncEnabled(boolean sync) {
|
|
|
|
assert isCreated() : "Cannot set sync of uncreated window";
|
|
|
|
nSetVSyncEnabled(sync);
|
|
|
|
}
|
|
|
|
|
2003-11-25 17:34:04 -05:00
|
|
|
private static native void nSetVSyncEnabled(boolean sync);
|
2003-10-20 10:17:47 -04:00
|
|
|
|
|
|
|
|
2003-03-27 17:32:48 -05:00
|
|
|
}
|