/*
* Copyright (c) 2002-2012 LWJGL Project
* 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 'LWJGL' 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 THE COPYRIGHT OWNER 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
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.lwjgl.util.stream;
import static org.lwjgl.opengl.GL15.*;
/** Base functionality for streaming PBO transfers. */
abstract class StreamBufferedPBO extends StreamBuffered {
protected final int[] pbos;
protected StreamBufferedPBO(final StreamHandler handler, final int transfersToBuffer) {
super(handler, transfersToBuffer);
pbos = new int[transfersToBuffer];
}
protected void resizeBuffers(final int height, final int stride, final int pboTarget, final int pboUsage) {
final int renderBytes = height * stride;
for ( int i = 0; i < pbos.length; i++ ) {
pbos[i] = glGenBuffers();
glBindBuffer(pboTarget, pbos[i]);
glBufferData(pboTarget, renderBytes, pboUsage);
pinnedBuffers[i] = null;
}
glBindBuffer(pboTarget, 0);
}
}