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package com.mbien.opencl;
import static com.mbien.opencl.CLException.*;
/**
*
* @author Michael Bien
*/
public class CLCommandQueue {
public final long ID;
private final CLContext context;
private final CLDevice device;
private final CL cl;
CLCommandQueue(CLContext context, CLDevice device, long properties) {
this.context = context;
this.cl = context.cl;
this.device = device;
int[] status = new int[1];
this.ID = cl.clCreateCommandQueue(context.ID, device.ID, properties, status, 0);
if(status[0] != CL.CL_SUCCESS)
throw new CLException(status[0], "can not create command queue on "+device);
}
public CLCommandQueue putWriteBuffer(CLBuffer writeBuffer, boolean blockingWrite) {
int ret = cl.clEnqueueWriteBuffer(
ID, writeBuffer.ID, blockingWrite ? CL.CL_TRUE : CL.CL_FALSE,
0, writeBuffer.buffer.capacity(), writeBuffer.buffer,
// 0, null, null); //TODO solve NPE in gluegen when PointerBuffer == null (fast dircet memory path)
0, null, 0, null, 0); //TODO events
if(ret != CL.CL_SUCCESS)
throw new CLException(ret, "can not enqueue WriteBuffer: " + writeBuffer);
return this;
}
public CLCommandQueue putReadBuffer(CLBuffer readBuffer, boolean blockingRead) {
int ret = cl.clEnqueueReadBuffer(
ID, readBuffer.ID, blockingRead ? CL.CL_TRUE : CL.CL_FALSE,
0, readBuffer.buffer.capacity(), readBuffer.buffer,
// 0, null, null); //TODO solve NPE in gluegen when PointerBuffer == null (fast dircet memory path)
0, null, 0, null, 0); //TODO events
if(ret != CL.CL_SUCCESS)
throw new CLException(ret, "can not enqueue ReadBuffer: " + readBuffer);
return this;
}
public CLCommandQueue putBarrier() {
int ret = cl.clEnqueueBarrier(ID);
checkForError(ret, "can not enqueue Barrier");
return this;
}
public CLCommandQueue putCopyBuffer(CLBuffer src, CLBuffer dest, long bytesToCopy) {
int ret = cl.clEnqueueCopyBuffer(
ID, src.ID, dest.ID, src.buffer.position(), dest.buffer.position(), bytesToCopy,
// 0, null, null); //TODO solve NPE in gluegen when PointerBuffer == null
0, null, 0, null, 0); //TODO events
checkForError(ret, "can not copy Buffer");
return this;
}
//TODO implement remaining methods
/*
public CLCommandQueue putCopyImage() {
return this;
}
public CLCommandQueue putCopyBufferToImage() {
return this;
}
public CLCommandQueue putCopyImageToBuffer() {
return this;
}
public CLCommandQueue putMarker() {
return this;
}
public CLCommandQueue putWriteImage() {
return this;
}
public CLCommandQueue putReadImage() {
return this;
}
public CLCommandQueue putTask() {
return this;
}
public CLBuffer putMapBuffer() {
return null;
}
public CLCommandQueue putMapImage() {
return this;
}
public CLCommandQueue putUnmapMemObject() {
return this;
}
public CLCommandQueue putWaitForEvents() {
return this;
}
*/
// public CLCommandQueue putNDRangeKernel(CLKernel kernel, int workDimension, long globalWorkOffset, long globalWorkSize, long localWorkSize) {
// return this.putNDRangeKernel(kernel, workDimension,
// new long[] {globalWorkOffset}, new long[] {globalWorkSize}, new long[] {localWorkSize});
// }
public CLCommandQueue putNDRangeKernel(CLKernel kernel, int workDimension, long[] globalWorkOffset, long[] globalWorkSize, long[] localWorkSize) {
int ret = cl.clEnqueueNDRangeKernel(
ID, kernel.ID, 1,
globalWorkOffset, 0,
globalWorkSize, 0,
localWorkSize, 0,
0,
null, 0,
null, 0 );
if(ret != CL.CL_SUCCESS)
throw new CLException(ret, "can not enqueue NDRangeKernel: " + kernel);
return this;
}
public void release() {
int ret = cl.clReleaseCommandQueue(ID);
context.commandQueueReleased(device, this);
checkForError(ret, "can not release command queue");
}
}
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