/*******************************************************************************
 * Copyright 2011 See AUTHORS file.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 ******************************************************************************/

package com.badlogic.gdx.tests;

import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.graphics.Pixmap;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;
import com.badlogic.gdx.graphics.g2d.TextureRegion;
import com.badlogic.gdx.tests.utils.GdxTest;

public class PixmapTest extends GdxTest {
	Pixmap pixmap;
	Texture texture;
	SpriteBatch batch;
	TextureRegion region;

	public void create () {
		// Create an empty dynamic pixmap
		pixmap = new Pixmap(800, 480, Pixmap.Format.RGBA8888); // Pixmap.Format.RGBA8888);

		// Create a texture to contain the pixmap
		texture = new Texture(1024, 1024, Pixmap.Format.RGBA8888); // Pixmap.Format.RGBA8888);
		texture.setFilter(Texture.TextureFilter.Nearest, Texture.TextureFilter.Linear);
		texture.setWrap(Texture.TextureWrap.ClampToEdge, Texture.TextureWrap.ClampToEdge);

		pixmap.setColor(1.0f, 0.0f, 0.0f, 1.0f); // Red
		pixmap.drawLine(0, 0, 100, 100);

		pixmap.setColor(0.0f, 0.0f, 1.0f, 1.0f); // Blue
		pixmap.drawLine(100, 100, 200, 0);

		pixmap.setColor(0.0f, 1.0f, 0.0f, 1.0f); // Green
		pixmap.drawLine(100, 0, 100, 100);

		pixmap.setColor(1.0f, 1.0f, 1.0f, 1.0f); // White
		pixmap.drawCircle(400, 300, 100);

		// Blit the composited overlay to a texture
		texture.draw(pixmap, 0, 0);
		region = new TextureRegion(texture, 0, 0, 800, 480);
		batch = new SpriteBatch();

		Pixmap pixmap = new Pixmap(512, 1024, Pixmap.Format.RGBA8888);
		for (int y = 0; y < pixmap.getHeight(); y++) { // 1024
			for (int x = 0; x < pixmap.getWidth(); x++) { // 512
				pixmap.getPixel(x, y);
			}
		}
		pixmap.dispose();
	}

	public void render () {
		Gdx.gl.glClearColor(0.6f, 0.6f, 0.6f, 1);
		Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
		batch.begin();
		batch.draw(region, 0, 0);
		batch.end();
	}
}