1 /** 2 * Copyright 2010 JogAmp Community. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without modification, are 5 * permitted provided that the following conditions are met: 6 * 7 * 1. Redistributions of source code must retain the above copyright notice, this list of 8 * conditions and the following disclaimer. 9 * 10 * 2. Redistributions in binary form must reproduce the above copyright notice, this list 11 * of conditions and the following disclaimer in the documentation and/or other materials 12 * provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED 15 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND 16 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 19 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 21 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 22 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23 * 24 * The views and conclusions contained in the software and documentation are those of the 25 * authors and should not be interpreted as representing official policies, either expressed 26 * or implied, of JogAmp Community. 27 */ 28 29 package jogamp.opengl.util; 30 31 import java.nio.Buffer; 32 33 import com.jogamp.opengl.GL; 34 35 import com.jogamp.opengl.util.GLArrayDataEditable; 36 37 /** 38 * Interleaved fixed function arrays, i.e. where this buffer data 39 * represents many arrays. 40 */ 41 public abstract class GLVBOArrayHandler implements GLArrayHandler { 42 protected GLArrayDataEditable ad; 43 GLVBOArrayHandler(final GLArrayDataEditable ad)44 public GLVBOArrayHandler(final GLArrayDataEditable ad) { 45 this.ad = ad; 46 } 47 48 @Override bindBuffer(final GL gl, final boolean bind)49 public final boolean bindBuffer(final GL gl, final boolean bind) { 50 if( !ad.isVBO() ) { 51 return false; 52 } 53 if(bind) { 54 // always bind and refresh the VBO mgr, 55 // in case more than one gl*Pointer objects are in use 56 gl.glBindBuffer(ad.getVBOTarget(), ad.getVBOName()); 57 if(!ad.isVBOWritten()) { 58 final Buffer buffer = ad.getBuffer(); 59 if(null!=buffer) { 60 gl.glBufferData(ad.getVBOTarget(), buffer.limit() * ad.getComponentSizeInBytes(), buffer, ad.getVBOUsage()); 61 } 62 ad.setVBOWritten(true); 63 } 64 } else { 65 gl.glBindBuffer(ad.getVBOTarget(), 0); 66 } 67 return true; 68 } 69 70 } 71 72