/**
 * Copyright 2010 JogAmp Community. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification, are
 * permitted provided that the following conditions are met:
 *
 *    1. Redistributions of source code must retain the above copyright notice, this list of
 *       conditions and the following disclaimer.
 *
 *    2. Redistributions in binary form must reproduce the above copyright notice, this list
 *       of conditions and the following disclaimer in the documentation and/or other materials
 *       provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * The views and conclusions contained in the software and documentation are those of the
 * authors and should not be interpreted as representing official policies, either expressed
 * or implied, of JogAmp Community.
 */
package com.jogamp.opengl.test.junit.util;

import com.jogamp.newt.Display;
import com.jogamp.newt.NewtFactory;
import com.jogamp.newt.Screen;
import com.jogamp.newt.Window;

import javax.media.opengl.GLCapabilities;
import javax.media.opengl.GLContext;
import javax.media.opengl.GLDrawable;
import javax.media.opengl.GLDrawableFactory;

import org.junit.Assert;

public class NEWTGLContext {

    public static class WindowContext {
        public final Window window;
        public final GLDrawable drawable;
        public final GLContext context;

        public WindowContext(final Window w, final GLDrawable d, final GLContext c) {
            window = w;
            drawable = d;
            context = c;
        }
    }

    public static WindowContext createOffscreenWindow(final GLCapabilities caps, final int width, final int height, final boolean debugGL) throws InterruptedException {
        caps.setOnscreen(false);
        caps.setPBuffer(true);

        //
        // Create native windowing resources .. X11/Win/OSX
        //
        final Display display = NewtFactory.createDisplay(null); // local display
        Assert.assertNotNull(display);

        final Screen screen  = NewtFactory.createScreen(display, 0); // screen 0
        Assert.assertNotNull(screen);

        final Window window = NewtFactory.createWindow(screen, caps);
        Assert.assertNotNull(window);
        window.setSize(width, height);
        window.setVisible(true);
        Assert.assertTrue(AWTRobotUtil.waitForVisible(window, true));
        Assert.assertTrue(AWTRobotUtil.waitForRealized(window, true));

        final GLDrawableFactory factory = GLDrawableFactory.getFactory(caps.getGLProfile());
        final GLDrawable drawable = factory.createGLDrawable(window);
        Assert.assertNotNull(drawable);

        drawable.setRealized(true);
        Assert.assertTrue(drawable.isRealized());

        final GLContext context = drawable.createContext(null);
        Assert.assertNotNull(context);

        context.enableGLDebugMessage(debugGL);

        final int res = context.makeCurrent();
        Assert.assertTrue(GLContext.CONTEXT_CURRENT_NEW==res || GLContext.CONTEXT_CURRENT==res);

        return new WindowContext(window, drawable, context);
    }

    public static WindowContext createOnscreenWindow(final GLCapabilities caps, final int width, final int height, final boolean debugGL) throws InterruptedException {
        //
        // Create native windowing resources .. X11/Win/OSX
        //
        final Display display = NewtFactory.createDisplay(null); // local display
        Assert.assertNotNull(display);

        final Screen screen  = NewtFactory.createScreen(display, 0); // screen 0
        Assert.assertNotNull(screen);

        final Window window = NewtFactory.createWindow(screen, caps);
        Assert.assertNotNull(window);
        window.setSize(width, height);
        window.setVisible(true);
        Assert.assertTrue(AWTRobotUtil.waitForVisible(window, true));
        Assert.assertTrue(AWTRobotUtil.waitForRealized(window, true));

        final GLDrawableFactory factory = GLDrawableFactory.getFactory(caps.getGLProfile());
        final GLDrawable drawable = factory.createGLDrawable(window);
        Assert.assertNotNull(drawable);

        drawable.setRealized(true);
        Assert.assertTrue(drawable.isRealized());

        final GLContext context = drawable.createContext(null);
        Assert.assertNotNull(context);

        context.enableGLDebugMessage(debugGL);

        final int res = context.makeCurrent();
        Assert.assertTrue(GLContext.CONTEXT_CURRENT_NEW==res || GLContext.CONTEXT_CURRENT==res);

        return new WindowContext(window, drawable, context);
    }

    public static void destroyWindow(final WindowContext winctx) {
        final GLDrawable drawable = winctx.context.getGLDrawable();

        Assert.assertNotNull(winctx.context);
        winctx.context.destroy();

        Assert.assertNotNull(drawable);
        drawable.setRealized(false);

        Assert.assertNotNull(winctx.window);
        winctx.window.destroy();
    }

}
