331 lines
9.3 KiB
Java
331 lines
9.3 KiB
Java
/*
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* Copyright (c) 2002-2008 LWJGL 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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*
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* * Neither the name of 'LWJGL' 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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*/
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package org.lwjgl.test.opengles;
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import org.lwjgl.BufferUtils;
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import org.lwjgl.LWJGLException;
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import org.lwjgl.input.Keyboard;
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import org.lwjgl.opengl.Display;
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import org.lwjgl.opengl.DisplayMode;
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import org.lwjgl.opengles.PixelFormat;
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import org.lwjgl.opengles.PowerManagementEventException;
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import org.lwjgl.util.vector.Vector2f;
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import java.nio.FloatBuffer;
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import java.nio.IntBuffer;
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import static org.lwjgl.opengles.GLES20.*;
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import static org.lwjgl.test.opengles.util.GLMatrix.*;
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/**
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* Tests switching between windowed and fullscreen
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*
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* @author Brian Matzon <brian@matzon.dk>
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* @version $Revision: 3172 $
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* $Id: FullScreenWindowedTest.java 3172 2008-12-28 19:30:43Z elias_naur $
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*/
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public class FullScreenWindowedTest {
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/** Intended deiplay mode */
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private DisplayMode mode;
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/** our quad moving around */
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private Vector2f quadPosition;
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/** our quadVelocity */
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private Vector2f quadVelocity;
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/** angle of quad */
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private float angle;
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/** degrees to rotate per frame */
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private float angleRotation = 1.0f;
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/** Max speed of all changable attributes */
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private static final float MAX_SPEED = 20.0f;
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private static int buffer_id;
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private static int indices_buffer_id;
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private QuadRenderer renderer;
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/** Creates a FullScreenWindowedTest */
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public FullScreenWindowedTest() {
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}
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/** Executes the test */
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public void execute() {
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initialize();
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mainLoop();
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cleanup();
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}
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private void switchMode() throws LWJGLException {
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mode = findDisplayMode(1024, 600, Display.getDisplayMode().getBitsPerPixel());
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try {
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Display.setDisplayModeAndFullscreen(mode);
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} catch (PowerManagementEventException e) {
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e.printStackTrace();
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}
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}
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/** Initializes the test */
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private void initialize() {
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try {
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//find displaymode
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switchMode();
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quadPosition = new Vector2f(100f, 100f);
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quadVelocity = new Vector2f(1.0f, 1.0f);
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reinit();
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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private void reinit() throws LWJGLException {
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Display.create(new PixelFormat());
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glInit();
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renderer = new QuadRenderer();
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}
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/** Runs the main loop of the "test" */
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private void mainLoop() {
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while ( !Keyboard.isKeyDown(Keyboard.KEY_ESCAPE) && !Display.isCloseRequested() ) {
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if ( Display.isVisible() ) {
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// check keyboard input
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processKeyboard();
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// do "game" logic, and render it
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logic();
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render();
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} else {
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// no need to render/paint if nothing has changed (ie. window
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// dragged over)
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if ( Display.isDirty() ) {
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render();
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}
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// don't waste cpu time, sleep more
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try {
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Thread.sleep(100);
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} catch (InterruptedException inte) {
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}
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}
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// Update window
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try {
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Display.update();
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Display.sync(60);
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} catch (PowerManagementEventException e) {
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e.printStackTrace();
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}
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}
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}
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/** Performs the logic */
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private void logic() {
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angle += angleRotation;
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if ( angle > 90.0f ) {
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angle = 0.0f;
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}
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quadPosition.x += quadVelocity.x;
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quadPosition.y += quadVelocity.y;
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//check colision with vertical border border
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if ( quadPosition.x + 50 >= mode.getWidth() || quadPosition.x - 50 <= 0 ) {
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quadVelocity.x *= -1;
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}
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//check collision with horizontal border
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if ( quadPosition.y + 50 >= mode.getHeight() || quadPosition.y - 50 <= 0 ) {
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quadVelocity.y *= -1;
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}
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}
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private void render() {
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//clear background
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glClear(GL_COLOR_BUFFER_BIT);
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// draw white quad
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glPushMatrix();
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{
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glTranslatef(quadPosition.x, quadPosition.y, 0);
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glRotatef(angle, 0.0f, 0.0f, 1.0f);
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renderer.setMVPUniform();
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glDrawElements(GL_TRIANGLE_STRIP, 4, GL_UNSIGNED_INT, 0);
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}
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glPopMatrix();
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}
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/** Processes keyboard input */
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private void processKeyboard() {
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//check for fullscreen key
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if ( Keyboard.isKeyDown(Keyboard.KEY_F) ) {
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try {
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cleanup();
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switchMode();
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reinit();
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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//check for window key
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if ( Keyboard.isKeyDown(Keyboard.KEY_W) ) {
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try {
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cleanup();
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mode = new DisplayMode(800, 480);
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Display.setDisplayModeAndFullscreen(mode);
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reinit();
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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//check for speed changes
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if ( Keyboard.isKeyDown(Keyboard.KEY_UP) ) {
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quadVelocity.y += 0.1f;
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}
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if ( Keyboard.isKeyDown(Keyboard.KEY_DOWN) ) {
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quadVelocity.y -= 0.1f;
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}
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if ( Keyboard.isKeyDown(Keyboard.KEY_RIGHT) ) {
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quadVelocity.x += 0.1f;
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}
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if ( Keyboard.isKeyDown(Keyboard.KEY_LEFT) ) {
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quadVelocity.x -= 0.1f;
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}
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if ( Keyboard.isKeyDown(Keyboard.KEY_ADD) ) {
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angleRotation += 0.1f;
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}
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if ( Keyboard.isKeyDown(Keyboard.KEY_SUBTRACT) ) {
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angleRotation -= 0.1f;
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}
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//throttle
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if ( quadVelocity.x < -MAX_SPEED ) {
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quadVelocity.x = -MAX_SPEED;
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}
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if ( quadVelocity.x > MAX_SPEED ) {
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quadVelocity.x = MAX_SPEED;
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}
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if ( quadVelocity.y < -MAX_SPEED ) {
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quadVelocity.y = -MAX_SPEED;
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}
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if ( quadVelocity.y > MAX_SPEED ) {
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quadVelocity.y = MAX_SPEED;
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}
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if ( angleRotation < 0.0f ) {
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angleRotation = 0.0f;
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}
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if ( angleRotation > MAX_SPEED ) {
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angleRotation = MAX_SPEED;
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}
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}
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/** Cleans up the test */
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private void cleanup() {
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renderer.cleanup();
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IntBuffer int_buffer = BufferUtils.createIntBuffer(2);
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int_buffer.put(0, buffer_id);
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int_buffer.put(1, indices_buffer_id);
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glDeleteBuffers(int_buffer);
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Display.destroy();
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}
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/**
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* Retrieves a displaymode, if one such is available
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*
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* @param width Required width
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* @param height Required height
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* @param bpp Minimum required bits per pixel
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*
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* @return
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*/
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private static DisplayMode findDisplayMode(int width, int height, int bpp) throws LWJGLException {
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DisplayMode[] modes = Display.getAvailableDisplayModes();
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for ( int i = 0; i < modes.length; i++ ) {
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if ( modes[i].getWidth() == width && modes[i].getHeight() == height && modes[i].getBitsPerPixel() >= bpp && modes[i].getFrequency() <= 60 ) {
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return modes[i];
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}
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}
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return Display.getDesktopDisplayMode();
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}
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/** Initializes OGL */
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private void glInit() throws LWJGLException {
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// Go into orthographic projection mode.
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glMatrixMode(GL_PROJECTION);
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glLoadIdentity();
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glOrtho(0, mode.getWidth(), 0, mode.getHeight(), -1.0f, 1.0f);
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glMatrixMode(GL_MODELVIEW);
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glLoadIdentity();
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glViewport(0, 0, mode.getWidth(), mode.getHeight());
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//set clear color to black
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glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
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//sync frame (only works on windows)
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Display.setVSyncEnabled(true);
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final IntBuffer int_buffer = BufferUtils.createIntBuffer(2);
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glGenBuffers(int_buffer);
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buffer_id = int_buffer.get(0);
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indices_buffer_id = int_buffer.get(1);
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glBindBuffer(GL_ARRAY_BUFFER, buffer_id);
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glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, indices_buffer_id);
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final FloatBuffer vertices = BufferUtils.createFloatBuffer(2 * 4);
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vertices
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.put(-50).put(-50)
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.put(50).put(-50)
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.put(-50).put(50)
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.put(50).put(50);
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vertices.rewind();
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final IntBuffer indices = BufferUtils.createIntBuffer(4);
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indices.put(0).put(1).put(2).put(3);
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indices.rewind();
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glBufferData(GL_ARRAY_BUFFER, vertices, GL_STATIC_DRAW);
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glBufferData(GL_ELEMENT_ARRAY_BUFFER, indices, GL_STATIC_DRAW);
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}
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/** Test entry point */
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public static void main(String[] args) {
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System.out.println("Change between fullscreen and windowed mode, by pressing F and W respectively");
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System.out.println("Move quad using arrowkeys, and change rotation using +/-");
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FullScreenWindowedTest fswTest = new FullScreenWindowedTest();
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fswTest.execute();
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System.exit(0);
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}
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}
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