/*******************************************************************************
 * 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.graphics.g3d.utils;

import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.files.FileHandle;
import com.badlogic.gdx.graphics.g3d.Renderable;
import com.badlogic.gdx.graphics.g3d.Shader;
import com.badlogic.gdx.graphics.g3d.shaders.DefaultShader;
import com.badlogic.gdx.graphics.g3d.shaders.GLES10Shader;
import com.badlogic.gdx.utils.GdxRuntimeException;

public class DefaultShaderProvider extends BaseShaderProvider {
	public final DefaultShader.Config config;
	
	public DefaultShaderProvider(final DefaultShader.Config config) {
		if (!Gdx.graphics.isGL20Available())
			throw new RuntimeException("The default shader requires OpenGL ES 2.0");
		this.config = (config == null) ? new DefaultShader.Config() : config;
	}
	
	public DefaultShaderProvider(final String vertexShader, final String fragmentShader) {
		this(new DefaultShader.Config(vertexShader, fragmentShader));
	}
	
	public DefaultShaderProvider(final FileHandle vertexShader, final FileHandle fragmentShader) {
		this(vertexShader.readString(), fragmentShader.readString());
	}
	
	public DefaultShaderProvider() {
		this(null);
	}
	
	@Override
	protected Shader createShader(final Renderable renderable) {
	   return new DefaultShader(renderable, config);
	}
}