com.sun.javafx.image.PixelConverter Maven / Gradle / Ivy
/*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
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package com.sun.javafx.image;
import java.nio.Buffer;
public interface PixelConverter {
/**
* Copies a rectangular region of data from the source buffer to the
* destination buffer using the following relationship:
*
* for each xy : 0 <= x,y < w,h {
* int srcpos = y * srcscanelems + x * srcelemsperpixel + srcoff;
* int dstpos = y * dstscanelems + x * dstelemsperpixel + dstoff;
* for each j : 0 <= j < srcelemsperpixel {
* load data from srcbuf.get(srcpos + j);
* }
* convert data to destination pixel format
* for each k : 0 <= k < dstelemsperpixel {
* store data into dstbuf.put(dstpos + k, pixel data);
* }
* }
*
*
* @param srcbuf the nio buffer containing the source data
* @param srcoff the absolute location in the buffer of the first source pixel data
* @param srcscanelems number of buffer elements between rows of data in the source
* @param dstbuf the nio buffer containing the destination data
* @param dstoff the absolute location in the buffer of the first destination pixel data
* @param dstscanelems number of buffer elements between rows of data in the destination
* @param w the number of pixels to process across before moving to the next row
* @param h the number of rows of pixels to process
*/
public void convert(T srcbuf, int srcoff, int srcscanelems,
U dstbuf, int dstoff, int dstscanelems,
int w, int h);
public PixelGetter getGetter();
public PixelSetter getSetter();
}