206 lines
5.5 KiB
Java
206 lines
5.5 KiB
Java
/*
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* Copyright (c) 2002-2010 LWJGL Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* * Neither the name of 'LWJGL' nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package org.lwjgl.opencl;
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import org.lwjgl.PointerBuffer;
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/**
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* This class is a wrapper around a cl_device_id pointer.
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*
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* @author Spasi
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*/
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public final class CLDevice extends CLObjectChild<CLDevice> {
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private static final InfoUtil<CLDevice> util = CLPlatform.getInfoUtilInstance(CLDevice.class, "CL_DEVICE_UTIL");
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private final CLPlatform platform;
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private final CLObjectRegistry<CLDevice> subCLDevices;
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private Object caps;
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CLDevice(final long pointer, final CLPlatform platform) {
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this(pointer, null, platform);
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}
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/**
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* EXT_device_fission constructor.
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*
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* @param pointer the sub-device pointer
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* @param parent the parent CLDevice
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*/
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CLDevice(final long pointer, final CLDevice parent) {
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this(pointer, parent, parent.getPlatform());
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}
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CLDevice(final long pointer, final CLDevice parent, final CLPlatform platform) {
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super(pointer, parent);
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if ( isValid() ) {
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this.platform = platform;
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platform.getCLDeviceRegistry().registerObject(this);
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this.subCLDevices = new CLObjectRegistry<CLDevice>();
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if ( parent != null )
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parent.subCLDevices.registerObject(this);
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} else {
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this.platform = null;
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this.subCLDevices = null;
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}
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}
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public CLPlatform getPlatform() {
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return platform;
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}
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/**
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* Returns a sub-device of this device.
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*
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* @param id the sub-device object id
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*
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* @return the CLDevice object
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*/
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public CLDevice getSubCLDevice(final long id) { return subCLDevices.getObject(id); }
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// ---------------[ UTILITY METHODS ]---------------
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/**
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* Returns the value of the specified String parameter.
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*
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* @param param_name the parameter
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*
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* @return the parameter value
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*/
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public String getInfoString(int param_name) {
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return util.getInfoString(this, param_name);
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}
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/**
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* Returns the integer value of the specified parameter.
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*
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* @param param_name the parameter
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*
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* @return the parameter value
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*/
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public int getInfoInt(int param_name) {
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return util.getInfoInt(this, param_name);
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}
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/**
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* Returns the boolean value of the specified parameter.
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*
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* @param param_name the parameter
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*
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* @return the parameter value
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*/
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public boolean getInfoBoolean(int param_name) {
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return util.getInfoInt(this, param_name) != 0;
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}
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/**
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* Returns the size_t value of the specified parameter.
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*
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* @param param_name the parameter
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*
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* @return the parameter value
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*/
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public long getInfoSize(int param_name) {
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return util.getInfoSize(this, param_name);
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}
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/**
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* Returns an array of size_t values of the specified parameter.
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*
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* @param param_name the parameter
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*
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* @return the parameter values
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*/
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public long[] getInfoSizeArray(int param_name) {
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return util.getInfoSizeArray(this, param_name);
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}
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/**
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* Returns the long value of the specified parameter. Can be used
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* for both cl_ulong and cl_bitfield parameters.
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*
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* @param param_name the parameter
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*
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* @return the parameter value
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*/
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public long getInfoLong(int param_name) {
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return util.getInfoLong(this, param_name);
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}
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// -------[ IMPLEMENTATION STUFF BELOW ]-------
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void setCapabilities(final Object caps) {
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this.caps = caps;
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}
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Object getCapabilities() {
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return caps;
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}
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int retain() {
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if ( getParent() == null )
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return getReferenceCount(); // NO-OP, root devices cannot be retained
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return super.retain();
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}
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int release() {
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if ( getParent() == null )
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return getReferenceCount(); // NO-OP, root devices cannot be released
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try {
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return super.release();
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} finally {
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if ( !isValid() )
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getParent().subCLDevices.unregisterObject(this);
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}
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}
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CLObjectRegistry<CLDevice> getSubCLDeviceRegistry() { return subCLDevices; }
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/**
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* Called from clCreateSubDevicesEXT to register new sub-devices.
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*
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* @param devices a buffer containing CLDevice pointers.
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*/
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void registerSubCLDevices(final PointerBuffer devices) {
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for ( int i = devices.position(); i < devices.limit(); i++ ) {
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final long pointer = devices.get(i);
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if ( pointer != 0 )
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new CLDevice(pointer, this);
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}
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}
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} |