com.metsci.glimpse.painter.texture.TextureUnit Maven / Gradle / Ivy

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/*
 * Copyright (c) 2016, Metron, Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * 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.
 *     * Neither the name of Metron, Inc. nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 METRON, INC. 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.
 */
package com.metsci.glimpse.painter.texture;

import javax.media.opengl.GL2;

import com.metsci.glimpse.gl.texture.Texture;

public class TextureUnit
{
    protected int textureUnit;
    protected D texture;

    public TextureUnit( D texture )
    {
        this( 0, texture );
    }

    public TextureUnit( int textureUnit, D texture )
    {
        this.textureUnit = textureUnit;
        this.texture = texture;
    }

    public boolean prepare( GL2 gl )
    {
        return texture.prepare( gl, textureUnit );
    }

    public int getTextureUnit( )
    {
        return textureUnit;
    }

    public D getTexture( )
    {
        return texture;
    }

    @Override
    public int hashCode( )
    {
        return 31 + ( ( texture == null ) ? 0 : texture.hashCode( ) );
    }

    @Override
    public boolean equals( Object obj )
    {
        if ( this == obj ) return true;
        if ( obj == null ) return false;
        if ( getClass( ) != obj.getClass( ) ) return false;
        TextureUnit other = ( TextureUnit ) obj;
        if ( texture == null ) return other.texture == null;
        return texture.equals( other.texture );
    }
}