/**
* Copyright (c) 2008-2012 Ardor Labs, Inc.
*
* This file is part of Ardor3D.
*
* Ardor3D is free software: you can redistribute it and/or modify it
* under the terms of its license which may be found in the accompanying
* LICENSE file or at <http://www.ardor3d.com/LICENSE>.
*/
package com.ardor3d.scene.state.lwjgl;
import org.lwjgl.opengl.GL11;
import com.ardor3d.renderer.ContextManager;
import com.ardor3d.renderer.RenderContext;
import com.ardor3d.renderer.lwjgl.LwjglRenderer;
import com.ardor3d.renderer.state.RenderState.StateType;
import com.ardor3d.renderer.state.WireframeState;
import com.ardor3d.renderer.state.record.WireframeStateRecord;
public abstract class LwjglWireframeStateUtil {
public static void apply(final LwjglRenderer renderer, final WireframeState state) {
// ask for the current state record
final RenderContext context = ContextManager.getCurrentContext();
final WireframeStateRecord record = (WireframeStateRecord) context.getStateRecord(StateType.Wireframe);
context.setCurrentState(StateType.Wireframe, state);
if (state.isEnabled()) {
renderer.setupLineParameters(state.getLineWidth(), 1, (short) 0xFFFF, state.isAntialiased());
switch (state.getFace()) {
case Front:
applyPolyMode(GL11.GL_LINE, GL11.GL_FILL, record);
break;
case Back:
applyPolyMode(GL11.GL_FILL, GL11.GL_LINE, record);
break;
case FrontAndBack:
default:
applyPolyMode(GL11.GL_LINE, GL11.GL_LINE, record);
break;
}
} else {
applyPolyMode(GL11.GL_FILL, GL11.GL_FILL, record);
}
if (!record.isValid()) {
record.validate();
}
}
private static void applyPolyMode(final int frontMode, final int backMode, final WireframeStateRecord record) {
if (record.isValid()) {
if (frontMode == backMode && (record.frontMode != frontMode || record.backMode != backMode)) {
GL11.glPolygonMode(GL11.GL_FRONT_AND_BACK, frontMode);
record.frontMode = frontMode;
record.backMode = backMode;
} else if (frontMode != backMode) {
if (record.frontMode != frontMode) {
GL11.glPolygonMode(GL11.GL_FRONT, frontMode);
record.frontMode = frontMode;
}
if (record.backMode != backMode) {
GL11.glPolygonMode(GL11.GL_BACK, backMode);
record.backMode = backMode;
}
}
} else {
if (frontMode == backMode) {
GL11.glPolygonMode(GL11.GL_FRONT_AND_BACK, frontMode);
} else if (frontMode != backMode) {
GL11.glPolygonMode(GL11.GL_FRONT, frontMode);
GL11.glPolygonMode(GL11.GL_BACK, backMode);
}
record.frontMode = frontMode;
record.backMode = backMode;
}
}
}