116 lines
3.6 KiB
Java
116 lines
3.6 KiB
Java
/*
|
|
* Copyright (c) 2002-2008 LWJGL Project
|
|
* 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 'LWJGL' 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
|
|
* 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.
|
|
*/
|
|
package org.lwjgl.openal;
|
|
|
|
import java.nio.IntBuffer;
|
|
|
|
import org.lwjgl.BufferUtils;
|
|
|
|
/**
|
|
* The ALCcontext class represents a context opened in OpenAL space.
|
|
*
|
|
* All operations of the AL core API affect a current AL context. Within the scope of AL,
|
|
* the ALC is implied - it is not visible as a handle or function parameter. Only one AL
|
|
* Context per process can be current at a time. Applications maintaining multiple AL
|
|
* Contexts, whether threaded or not, have to set the current context accordingly.
|
|
* Applications can have multiple threads that share one more or contexts. In other words,
|
|
* AL and ALC are threadsafe.
|
|
*
|
|
* @author Brian Matzon <brian@matzon.dk>
|
|
* @version $Revision$
|
|
* $Id$
|
|
*/
|
|
public final class ALCcontext {
|
|
|
|
/** Address of actual context */
|
|
final long context;
|
|
|
|
/** Whether this context is valid */
|
|
private boolean valid;
|
|
|
|
/**
|
|
* Creates a new instance of ALCcontext
|
|
*
|
|
* @param context address of actual context
|
|
*/
|
|
ALCcontext(long context) {
|
|
this.context = context;
|
|
this.valid = true;
|
|
}
|
|
|
|
/*
|
|
* @see java.lang.Object#equals(java.lang.Object)
|
|
*/
|
|
public boolean equals(Object context) {
|
|
if(context instanceof ALCcontext) {
|
|
return ((ALCcontext)context).context == this.context;
|
|
}
|
|
return super.equals(context);
|
|
}
|
|
|
|
/**
|
|
* Creates an attribute list in a ByteBuffer
|
|
* @param contextFrequency Frequency to add
|
|
* @param contextRefresh Refresh rate to add
|
|
* @param contextSynchronized Whether to synchronize the context
|
|
* @return attribute list
|
|
*/
|
|
static IntBuffer createAttributeList(int contextFrequency, int contextRefresh, int contextSynchronized) {
|
|
IntBuffer attribList = BufferUtils.createIntBuffer(7);
|
|
|
|
attribList.put(ALC10.ALC_FREQUENCY);
|
|
attribList.put(contextFrequency);
|
|
attribList.put(ALC10.ALC_REFRESH);
|
|
attribList.put(contextRefresh);
|
|
attribList.put(ALC10.ALC_SYNC);
|
|
attribList.put(contextSynchronized);
|
|
attribList.put(0); //terminating int
|
|
|
|
return attribList;
|
|
}
|
|
|
|
/**
|
|
* Marks this context as invalid
|
|
*
|
|
*/
|
|
void setInvalid() {
|
|
valid = false;
|
|
}
|
|
|
|
/**
|
|
* @return true if this context is still valid
|
|
*/
|
|
public boolean isValid() {
|
|
return valid;
|
|
}
|
|
}
|