diff options
Diffstat (limited to 'src/jogl/classes/jogamp/opengl/util/GLVBOArrayHandler.java')
-rw-r--r-- | src/jogl/classes/jogamp/opengl/util/GLVBOArrayHandler.java | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/src/jogl/classes/jogamp/opengl/util/GLVBOArrayHandler.java b/src/jogl/classes/jogamp/opengl/util/GLVBOArrayHandler.java new file mode 100644 index 000000000..5198cacfa --- /dev/null +++ b/src/jogl/classes/jogamp/opengl/util/GLVBOArrayHandler.java @@ -0,0 +1,71 @@ +/** + * 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; + } + + @Override + 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; + } + +} + |