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package com.jogamp.opencl;
import com.jogamp.common.nio.PointerBuffer;
import java.nio.Buffer;
import static com.jogamp.opencl.CL.*;
/**
*
* @author Michael Bien
*/
public abstract class CLImage<B extends Buffer> extends CLMemory<B> {
protected CLImageFormat format;
final CLInfoAccessor imageInfo;
public final int width;
public final int height;
protected CLImage(CLContext context, B directBuffer, CLImageFormat format, int width, int height, long id, int flags) {
this(context, directBuffer, format, new CLImageInfoAccessor(context.cl, id), width, height, id, flags);
}
protected CLImage(CLContext context, B directBuffer, CLImageFormat format, CLImageInfoAccessor accessor, int width, int height, long id, int flags) {
super(context, directBuffer, getSizeImpl(context.cl, id), id, flags);
this.imageInfo = accessor;
this.format = format;
this.width = width;
this.height = height;
}
protected static CLImageFormat createUninitializedImageFormat() {
return new CLImageFormat();
}
/**
* Returns the image format descriptor specified when image was created.
*/
public CLImageFormat getFormat() {
return format;
}
/**
* Returns the size of each element of the image memory object given by image.
* An element is made up of n channels. The value of n is given in {@link CLImageFormat} descriptor.
*/
public int getElementSize() {
return (int)imageInfo.getLong(CL_IMAGE_ELEMENT_SIZE);
}
/**
* Returns the size in bytes of a row of elements of the image object given by image.
*/
public int getRowPitch() {
return (int)imageInfo.getLong(CL_IMAGE_ROW_PITCH);
}
/**
* Returns width of this image in pixels.
*/
public int getWidth() {
return width;
}
/**
* Returns the height of this image in pixels.
*/
public int getHeight() {
return height;
}
protected final static class CLImageInfoAccessor extends CLInfoAccessor {
private final long id;
private final CL cl;
public CLImageInfoAccessor(CL cl, long id) {
this.cl = cl;
this.id = id;
}
@Override
public int getInfo(int name, long valueSize, Buffer value, PointerBuffer valueSizeRet) {
return cl.clGetImageInfo(id, name, valueSize, value, valueSizeRet);
}
}
}
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