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/**
* 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 jogamp.opengl.util;
import java.nio.Buffer;
import javax.media.opengl.GL;
import com.jogamp.opengl.util.GLArrayDataEditable;
/**
* Interleaved fixed function arrays, i.e. where this buffer data
* represents many arrays.
*/
public abstract class GLVBOArrayHandler implements GLArrayHandler {
protected GLArrayDataEditable ad;
public GLVBOArrayHandler(GLArrayDataEditable ad) {
this.ad = ad;
}
public final boolean bindBuffer(GL gl, boolean bind) {
if( !ad.isVBO() ) {
return false;
}
if(bind) {
// always bind and refresh the VBO mgr,
// in case more than one gl*Pointer objects are in use
gl.glBindBuffer(ad.getVBOTarget(), ad.getVBOName());
if(!ad.isVBOWritten()) {
final Buffer buffer = ad.getBuffer();
if(null!=buffer) {
gl.glBufferData(ad.getVBOTarget(), buffer.limit() * ad.getComponentSizeInBytes(), buffer, ad.getVBOUsage());
}
ad.setVBOWritten(true);
}
} else {
gl.glBindBuffer(ad.getVBOTarget(), 0);
}
return true;
}
}
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