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/*
* Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
* 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.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package com.sun.javafx.image;
import java.nio.ByteBuffer;
import java.nio.IntBuffer;
public interface IntToBytePixelConverter
extends PixelConverter
{
/**
* Copies a rectangular region of data from the source array to the
* destination array using the following relationship:
*
* for each xy : 0 <= x,y < w,h {
* int srcpos = y * srcscanints + x * srcintsperpixel + srcoff;
* int dstpos = y * dstscanbytes + x * dstbytesperpixel + dstoff;
* for each j : 0 <= j < srcintsperpixel {
* load data from srcarr[srcpos + j];
* }
* convert data to destination pixel format
* for each k : 0 <= k < dstbytesperpixel {
* store data into dstarr[dstpos + k] = pixel data;
* }
* }
*
*
* @param srcbuf the int array containing the source data
* @param srcoff the index in the array of the first source pixel data
* @param srcscanints number of array indices between rows of data in the source
* @param dstbuf the byte array containing the destination data
* @param dstoff the index in the array of the first destination pixel data
* @param dstscanbytes number of array indices 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(int srcarr[], int srcoff, int srcscanints,
byte dstarr[], int dstoff, int dstscanbytes,
int w, int h);
/**
* Copies a rectangular region of data from the source buffer to the
* destination array using the following relationship:
*
* for each xy : 0 <= x,y < w,h {
* int srcpos = y * srcscanints + x * srcintsperpixel + srcoff;
* int dstpos = y * dstscanbytes + x * dstbytesperpixel + dstoff;
* for each j : 0 <= j < srcintsperpixel {
* load data from srcbuf.get(srcpos + j);
* }
* convert data to destination pixel format
* for each k : 0 <= k < dstbytesperpixel {
* store data into dstarr[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 srcscanints number of buffer elements between rows of data in the source
* @param dstbuf the byte array containing the destination data
* @param dstoff the index in the array of the first destination pixel data
* @param dstscanbytes number of array indices 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(IntBuffer srcbuf, int srcoff, int srcscanints,
byte dstarr[], int dstoff, int dstscanbytes,
int w, int h);
/**
* Copies a rectangular region of data from the source array to the
* destination buffer using the following relationship:
*
* for each xy : 0 <= x,y < w,h {
* int srcpos = y * srcscanints + x * srcintsperpixel + srcoff;
* int dstpos = y * dstscanbytes + x * dstbytesperpixel + dstoff;
* for each j : 0 <= j < srcintsperpixel {
* load data from srcarr[srcpos + j];
* }
* convert data to destination pixel format
* for each k : 0 <= k < dstbytesperpixel {
* store data into dstbuf.put(dstpos + k, pixel data);
* }
* }
*
*
* @param srcbuf the int array containing the source data
* @param srcoff the index in the array of the first source pixel data
* @param srcscanints number of array indices 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 dstscanbytes 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(int srcarr[], int srcoff, int srcscanints,
ByteBuffer dstbuf, int dstoff, int dstscanbytes,
int w, int h);
}
