StandardMonitorRender.java

/*
  StandardMonitorRender.java

  (c) 2011-2014 Edward Swartz

  All rights reserved. This program and the accompanying materials
  are made available under the terms of the Eclipse Public License v1.0
  which accompanies this distribution, and is available at
  http://www.eclipse.org/legal/epl-v10.html
 */
package v9t9.gui.client.swt.gl;

import static org.lwjgl.opengl.GL11.GL_QUADS;
import static org.lwjgl.opengl.GL11.glBegin;
import static org.lwjgl.opengl.GL11.glEnd;
import static org.lwjgl.opengl.GL11.glTexCoord2f;
import static org.lwjgl.opengl.GL11.glVertex2f;
import static org.lwjgl.opengl.GL13.GL_TEXTURE1;
import static org.lwjgl.opengl.GL13.glActiveTexture;
import static org.lwjgl.opengl.GL13.glMultiTexCoord2f;

/**
 * @author Ed
 *
 */
public class StandardMonitorRender extends BaseMonitorEffect {
	public static final StandardMonitorRender INSTANCE = new StandardMonitorRender();
	private boolean supportsMultiTexture;
	
	public StandardMonitorRender() {
	}
	
	@Override
	public void init() {
		try {
			glActiveTexture(GL_TEXTURE1);
			supportsMultiTexture = true;
		} catch (IllegalStateException e) {
		}
	}
	
	@Override
	public void render() {
		glBegin(GL_QUADS);
		
		drawQuad(0, 0, 1, 1, 0, 0, 1, 1);
		
		glEnd();
	}


	protected void drawQuad(float cx, float cy, float cx2, float cy2,
			float tx, float ty, float tx2, float ty2) {
		if (supportsMultiTexture)
			glMultiTexCoord2f(GL_TEXTURE1, tx, ty);
		glTexCoord2f(tx, ty);		
		glVertex2f(cx, cy);
		if (supportsMultiTexture)
			glMultiTexCoord2f(GL_TEXTURE1, tx, ty2);
		glTexCoord2f(tx, ty2);		
		glVertex2f(cx, cy2);
		if (supportsMultiTexture)
			glMultiTexCoord2f(GL_TEXTURE1, tx2, ty2);
		glTexCoord2f(tx2, ty2);		
		glVertex2f(cx2, cy2);
		if (supportsMultiTexture)
			glMultiTexCoord2f(GL_TEXTURE1, tx2, ty);
		glTexCoord2f(tx2, ty);		
		glVertex2f(cx2, cy);
	}
}