/*
* Copyright (c) 2009-2016 jMonkeyEngine
* 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 'jMonkeyEngine' 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
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.jme3.opencl.lwjgl;
import com.jme3.opencl.*;
import com.jme3.opencl.lwjgl.info.Info;
import java.nio.ByteBuffer;
import java.nio.IntBuffer;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.lwjgl.BufferUtils;
import org.lwjgl.PointerBuffer;
import org.lwjgl.opencl.*;
import org.lwjgl.system.MemoryUtil;
/**
*
* @author shaman
*/
public class LwjglProgram extends Program {
private static final Logger LOG = Logger.getLogger(LwjglProgram.class.getName());
private final long program;
private final LwjglContext context;
public LwjglProgram(long program, LwjglContext context) {
super(new ReleaserImpl(program));
this.program = program;
this.context = context;
}
public long getProgram() {
return program;
}
@Override
public void build(String args, Device... devices) throws KernelCompilationException {
PointerBuffer deviceList = null;
if (devices != null) {
deviceList = PointerBuffer.allocateDirect(devices.length);
deviceList.rewind();
for (Device d : devices) {
deviceList.put(((LwjglDevice) d).getDevice());
}
deviceList.flip();
}
int ret = CL10.clBuildProgram(program, deviceList, args, null, 0);
if (ret != CL10.CL_SUCCESS) {
String log = Log();
LOG.log(Level.WARNING, "Unable to compile program:\n{0}", log);
if (ret == CL10.CL_BUILD_PROGRAM_FAILURE) {
throw new KernelCompilationException("Failed to build program", ret, log);
} else {
Utils.checkError(ret, "clBuildProgram");
}
} else {
LOG.log(Level.INFO, "Program compiled:\n{0}", Log());
}
}
private String Log(long device) {
Utils.pointerBuffers[0].rewind();
int ret = CL10.clGetProgramBuildInfo(program, device, CL10.CL_PROGRAM_BUILD_LOG, (ByteBuffer) null, Utils.pointerBuffers[0]);
Utils.checkError(ret, "clGetProgramBuildInfo");
int count = (int) Utils.pointerBuffers[0].get(0);
final ByteBuffer buffer = BufferUtils.createByteBuffer(count);
ret = CL10.clGetProgramBuildInfo(program, device, CL10.CL_PROGRAM_BUILD_LOG, buffer, null);
Utils.checkError(ret, "clGetProgramBuildInfo");
return MemoryUtil.memASCII(buffer);
}
private String Log() {
StringBuilder str = new StringBuilder();
for (LwjglDevice device : context.getDevices()) {
long d = device.getDevice();
str.append(device.getName()).append(":\n");
//str.append(Info.clGetProgramBuildInfoStringASCII(program, d, CL10.CL_PROGRAM_BUILD_LOG)); //This throws an IllegalArgumentException in Buffer.limit()
str.append(Log(d));
str.append('\n');
}
return str.toString();
}
@Override
public Kernel createKernel(String name) {
long kernel = CL10.clCreateKernel(program, name, Utils.errorBuffer);
Utils.checkError(Utils.errorBuffer, "clCreateKernel");
return new LwjglKernel(kernel);
}
@Override
public Kernel[] createAllKernels() {
Utils.tempBuffers[0].b16i.rewind();
int ret = CL10.clCreateKernelsInProgram(program, null, Utils.tempBuffers[0].b16i);
Utils.checkError(ret, "clCreateKernelsInProgram");
int count = Utils.tempBuffers[0].b16i.get(0);
PointerBuffer buf = PointerBuffer.allocateDirect(count);
ret = CL10.clCreateKernelsInProgram(program, buf, (IntBuffer) null);
Utils.checkError(ret, "clCreateKernelsInProgram");
Kernel[] kx = new Kernel[count];
for (int i=0; i<count; ++i) {
kx[i] = new LwjglKernel(buf.get());
}
return kx;
}
@Override
public ByteBuffer getBinary(Device d) {
//throw new UnsupportedOperationException("Not supported yet, would crash the JVM");
LwjglDevice device = (LwjglDevice) d;
int numDevices = Info.clGetProgramInfoInt(program, CL10.CL_PROGRAM_NUM_DEVICES);
PointerBuffer devices = PointerBuffer.allocateDirect(numDevices);
int ret = CL10.clGetProgramInfo(program, CL10.CL_PROGRAM_DEVICES, devices, null);
Utils.checkError(ret, "clGetProgramInfo: CL_PROGRAM_DEVICES");
int index = -1;
for (int i=0; i<numDevices; ++i) {
if (devices.get(i) == device.getDevice()) {
index = i;
}
}
if (index == -1) {
throw new com.jme3.opencl.OpenCLException("Program was not built against the specified device "+device);
}
PointerBuffer sizes = PointerBuffer.allocateDirect(numDevices);
ret = CL10.clGetProgramInfo(program, CL10.CL_PROGRAM_BINARY_SIZES, sizes, null);
Utils.checkError(ret, "clGetProgramInfo: CL_PROGRAM_BINARY_SIZES");
int size = (int) sizes.get(index);
PointerBuffer binaryPointers = PointerBuffer.allocateDirect(numDevices);
for (int i=0; i<binaryPointers.capacity(); ++i) {
binaryPointers.put(0L);
}
binaryPointers.rewind();
ByteBuffer binaries = ByteBuffer.allocateDirect(size);
binaryPointers.put(index, binaries);
//Fixme: why the hell does this line throw a segfault ?!?
ret = CL10.clGetProgramInfo(program, CL10.CL_PROGRAM_BINARIES, binaryPointers, null);
Utils.checkError(ret, "clGetProgramInfo: CL_PROGRAM_BINARIES");
return binaries;
}
private static class ReleaserImpl implements ObjectReleaser {
private long program;
private ReleaserImpl(long program) {
this.program = program;
}
@Override
public void release() {
if (program != 0) {
int ret = CL10.clReleaseProgram(program);
program = 0;
Utils.reportError(ret, "clReleaseProgram");
}
}
}
}