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/*
* Copyright 2009 - 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 com.jogamp.opencl.gl;
import com.jogamp.opencl.CLBuffer;
import com.jogamp.opencl.CLCommandQueue;
import com.jogamp.opencl.CLContext;
import com.jogamp.opencl.CLException;
import com.jogamp.opencl.llb.gl.CLGL;
import java.nio.Buffer;
import javax.media.opengl.GLContext;
/**
* Shared buffer between OpenGL and OpenCL contexts.
* @author Michael Bien
*/
public final class CLGLBuffer<B extends Buffer> extends CLBuffer<B> implements CLGLObject {
/**
* The OpenGL object handle.
*/
public final int GLID;
private CLGLBuffer(CLContext context, B directBuffer, long id, int glObject, long size, int flags) {
super(context, directBuffer, size, id, flags);
this.GLID = glObject;
}
static <B extends Buffer> CLGLBuffer<B> create(CLContext context, B directBuffer, long size, int flags, int glObject) {
checkBuffer(directBuffer, flags);
CLGL clgli = (CLGL)getCL(context);
int[] result = new int[1];
long id = clgli.clCreateFromGLBuffer(context.ID, flags, glObject, result, 0);
CLException.checkForError(result[0], "can not create CLGLObject from #"+glObject);
return new CLGLBuffer<B>(context, directBuffer, id, glObject, size, flags);
}
static <B extends Buffer> void checkBuffer(B directBuffer, int flags) throws IllegalArgumentException {
if (directBuffer != null && !directBuffer.isDirect()) {
throw new IllegalArgumentException("buffer is not a direct buffer");
}
if (isHostPointerFlag(flags)) {
throw new IllegalArgumentException("CL_MEM_COPY_HOST_PTR or CL_MEM_USE_HOST_PTR can not be used with OpenGL Buffers.");
}
}
/**
* Updates the size of this CLGLBuffer by querying OpenGL.
* This method may only be called if this memory object has been acquired by calling
* {@link CLCommandQueue#putAcquireGLObject(com.jogamp.opencl.gl.CLGLObject)}.
*/
public void updateSize() {
size = getSizeImpl(cl, ID);
initCLCapacity();
}
@Override
public int getGLObjectID() {
return GLID;
}
@Override
public GLObjectType getGLObjectType() {
return GLObjectType.GL_OBJECT_BUFFER;
}
@Override
public CLGLContext getContext() {
return (CLGLContext) super.getContext();
}
@Override
public GLContext getGLContext() {
return getContext().getGLContext();
}
@Override
public <T extends Buffer> CLGLBuffer<T> cloneWith(T directBuffer) {
return new CLGLBuffer<T>(context, directBuffer, ID, GLID, size, FLAGS);
}
@Override
public String toString() {
return getClass().getSimpleName()+" [id: " + ID+" glID: "+GLID+"]";
}
}
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