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| import java.awt.event.*; import javax.swing.JFrame; import javax.media.opengl.*; import javax.media.opengl.glu.*; import com.sun.opengl.util.*; import java.nio.IntBuffer;
public class texbind extends JFrame implements GLEventListener, KeyListener {
private GLCapabilities caps; private GLCanvas canvas; private GLU glu; private GLUT glut; private static final int rgba = 4; private static final int checkImageWidth = 64; private static final int checkImageHeight = 64; private IntBuffer checkImageBuf = BufferUtil.newIntBuffer(checkImageWidth * checkImageHeight * rgba); private IntBuffer otherImageBuf = BufferUtil.newIntBuffer(checkImageWidth * checkImageHeight * rgba); private int[] texName = new int[2];
public texbind() { super("texbind");
caps = new GLCapabilities(); canvas = new GLCanvas(caps); canvas.addGLEventListener(this); canvas.addKeyListener(this);
getContentPane().add(canvas); }
public void run() { setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setSize(250, 250); setLocationRelativeTo(null); setVisible(true); canvas.requestFocusInWindow(); }
public static void main(String[] args) { new texbind().run(); }
public void init(GLAutoDrawable drawable) { GL gl = drawable.getGL(); glu = new GLU();
gl.glClearColor(0.0f, 0.0f, 0.0f, 0.0f); gl.glShadeModel(GL.GL_FLAT); gl.glEnable(GL.GL_DEPTH_TEST);
makeCheckImages();
gl.glPixelStorei(GL.GL_UNPACK_ALIGNMENT, 1);
gl.glGenTextures(2, texName, 0); gl.glBindTexture(GL.GL_TEXTURE_2D, texName[0]); gl.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_WRAP_S, GL.GL_CLAMP); gl.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_WRAP_T, GL.GL_CLAMP); gl.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MAG_FILTER, GL.GL_NEAREST); gl.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MIN_FILTER, GL.GL_NEAREST); gl.glTexImage2D(GL.GL_TEXTURE_2D, 0, GL.GL_RGBA, checkImageWidth, checkImageHeight, 0, GL.GL_RGBA, GL.GL_INT, checkImageBuf);
gl.glBindTexture(GL.GL_TEXTURE_2D, texName[1]); gl.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_WRAP_S, GL.GL_CLAMP); gl.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_WRAP_T, GL.GL_CLAMP); gl.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MAG_FILTER, GL.GL_NEAREST); gl.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MIN_FILTER, GL.GL_NEAREST); gl.glTexEnvf(GL.GL_TEXTURE_ENV, GL.GL_TEXTURE_ENV_MODE, GL.GL_DECAL); gl.glTexImage2D(GL.GL_TEXTURE_2D, 0, GL.GL_RGBA, checkImageWidth, checkImageHeight, 0, GL.GL_RGBA, GL.GL_INT, otherImageBuf); gl.glEnable(GL.GL_TEXTURE_2D); }
public void display(GLAutoDrawable drawable) { GL gl = drawable.getGL();
gl.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);
gl.glBindTexture(GL.GL_TEXTURE_2D, texName[0]); gl.glBegin(GL.GL_QUADS); gl.glTexCoord2d(0.0, 0.0); gl.glVertex3d(-2.0, -1.0, 0.0); gl.glTexCoord2d(0.0, 1.0); gl.glVertex3d(-2.0, 1.0, 0.0); gl.glTexCoord2d(1.0, 1.0); gl.glVertex3d(0.0, 1.0, 0.0); gl.glTexCoord2d(1.0, 0.0); gl.glVertex3d(0.0, -1.0, 0.0); gl.glEnd();
gl.glBindTexture(GL.GL_TEXTURE_2D, texName[1]); gl.glBegin(GL.GL_QUADS); gl.glTexCoord2d(0.0, 0.0); gl.glVertex3d(1.0, -1.0, 0.0); gl.glTexCoord2d(0.0, 1.0); gl.glVertex3d(1.0, 1.0, 0.0); gl.glTexCoord2d(1.0, 1.0); gl.glVertex3d(2.41421, 1.0, -1.41421); gl.glTexCoord2d(1.0, 0.0); gl.glVertex3d(2.41421, -1.0, -1.41421); gl.glEnd(); gl.glFlush(); }
public void reshape(GLAutoDrawable drawable, int x, int y, int w, int h) { GL gl = drawable.getGL();
gl.glViewport(0, 0, w, h); gl.glMatrixMode(GL.GL_PROJECTION); gl.glLoadIdentity(); glu.gluPerspective(60.0, (float) w / (float) h, 1.0, 30.0); gl.glMatrixMode(GL.GL_MODELVIEW); gl.glLoadIdentity(); gl.glTranslated(0.0, 0.0, -3.6); }
public void displayChanged(GLAutoDrawable drawable, boolean modeChanged, boolean deviceChanged) { }
private void makeCheckImages() { for (int i = 0; i < checkImageWidth; i++) { for (int j = 0; j < checkImageHeight; j++) { checkImageBuf.put((int) (Math.random()*256)); checkImageBuf.put((int) (Math.random()*256)); checkImageBuf.put((int) (Math.random()*256)); checkImageBuf.put((int) (Math.random()*256)); otherImageBuf.put((int) (Math.random()*256)); otherImageBuf.put((int) (Math.random()*256)); otherImageBuf.put((int) (Math.random()*256)); otherImageBuf.put((int) (Math.random()*256));
} } checkImageBuf.rewind(); otherImageBuf.rewind(); }
public void keyTyped(KeyEvent key) { }
public void keyPressed(KeyEvent key) { switch (key.getKeyCode()) { case KeyEvent.VK_ESCAPE: System.exit(0); default: break; } }
public void keyReleased(KeyEvent key) { } } |