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/*
* Copyright (c) 2009 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;
import com.jogamp.common.nio.PointerBuffer;
import com.jogamp.opencl.impl.CLTLInfoAccessor;
import java.nio.Buffer;
import static com.jogamp.opencl.CLException.*;
import static com.jogamp.opencl.CL.*;
import static com.jogamp.opencl.util.CLUtil.*;
/**
* Object representing an OpenCL sampler.
* @see CLContext#createSampler(com.jogamp.opencl.CLSampler.AddressingMode, com.jogamp.opencl.CLSampler.FilteringMode, boolean)
* @author Michael Bien
*/
public class CLSampler extends CLObject implements CLResource {
private final CLSamplerInfoAccessor samplerInfo;
private CLSampler(CLContext context, long id, AddressingMode addrMode, FilteringMode filtMode, boolean normalizedCoords) {
super(context, id);
this.samplerInfo = new CLSamplerInfoAccessor();
}
static CLSampler create(CLContext context, AddressingMode addrMode, FilteringMode filtMode, boolean normalizedCoords) {
int[] error = new int[1];
long id = context.cl.clCreateSampler(context.ID, clBoolean(normalizedCoords), addrMode.MODE, filtMode.MODE, error, 0);
checkForError(error[0], "can not create sampler");
return new CLSampler(context, id, addrMode, filtMode, normalizedCoords);
}
public FilteringMode getFilteringMode() {
int info = (int)samplerInfo.getLong(CL_SAMPLER_FILTER_MODE);
return FilteringMode.valueOf(info);
}
public AddressingMode getAddressingMode() {
int info = (int)samplerInfo.getLong(CL_SAMPLER_ADDRESSING_MODE);
return AddressingMode.valueOf(info);
}
public boolean hasNormalizedCoords() {
return samplerInfo.getLong(CL_SAMPLER_NORMALIZED_COORDS) == CL_TRUE;
}
@Override
public void release() {
int ret = cl.clReleaseSampler(ID);
context.onSamplerReleased(this);
if(ret != CL.CL_SUCCESS) {
throw newException(ret, "can not release "+this);
}
}
private class CLSamplerInfoAccessor extends CLTLInfoAccessor {
@Override
protected int getInfo(int name, long valueSize, Buffer value, PointerBuffer valueSizeRet) {
return cl.clGetSamplerInfo(ID, name, valueSize, value, valueSizeRet);
}
}
public enum FilteringMode {
NEAREST(CL_FILTER_NEAREST),
LINEAR(CL_FILTER_LINEAR);
/**
* Value of wrapped OpenCL sampler filtering mode type.
*/
public final int MODE;
private FilteringMode(int mode) {
this.MODE = mode;
}
public static FilteringMode valueOf(int mode) {
switch(mode) {
case(CL_FILTER_NEAREST):
return NEAREST;
case(CL_FILTER_LINEAR):
return LINEAR;
}
return null;
}
}
public enum AddressingMode {
REPEAT(CL_ADDRESS_REPEAT),
CLAMP_TO_EDGE(CL_ADDRESS_CLAMP_TO_EDGE),
CLAMP(CL_ADDRESS_CLAMP),
NONE(CL_ADDRESS_NONE);
/**
* Value of wrapped OpenCL sampler addressing mode type.
*/
public final int MODE;
private AddressingMode(int mode) {
this.MODE = mode;
}
public static AddressingMode valueOf(int mode) {
switch(mode) {
case(CL_ADDRESS_REPEAT):
return REPEAT;
case(CL_ADDRESS_CLAMP_TO_EDGE):
return CLAMP_TO_EDGE;
case(CL_ADDRESS_CLAMP):
return CLAMP;
case(CL_ADDRESS_NONE):
return NONE;
}
return null;
}
}
}
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