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/*
* Copyright (c) 2012, 2014, 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.impl;
import com.sun.javafx.image.AlphaType;
import com.sun.javafx.image.BytePixelAccessor;
import com.sun.javafx.image.BytePixelGetter;
import com.sun.javafx.image.BytePixelSetter;
import com.sun.javafx.image.ByteToBytePixelConverter;
import com.sun.javafx.image.ByteToIntPixelConverter;
import com.sun.javafx.image.IntPixelSetter;
import com.sun.javafx.image.PixelUtils;
import java.nio.ByteBuffer;
import java.nio.IntBuffer;
public class ByteGray {
public static final BytePixelGetter getter = Accessor.instance;
public static final BytePixelSetter setter = Accessor.instance;
public static final BytePixelAccessor accessor = Accessor.instance;
private static ByteToBytePixelConverter ToByteGrayObj;
public static ByteToBytePixelConverter ToByteGrayConverter() {
if (ToByteGrayObj == null) {
ToByteGrayObj = BaseByteToByteConverter.create(accessor);
}
return ToByteGrayObj;
}
public static ByteToBytePixelConverter ToByteBgraConverter() {
return ByteGray.ToByteBgrfConv.nonpremult;
}
public static ByteToBytePixelConverter ToByteBgraPreConverter() {
return ByteGray.ToByteBgrfConv.premult;
}
public static ByteToIntPixelConverter ToIntArgbConverter() {
return ByteGray.ToIntFrgbConv.nonpremult;
}
public static ByteToIntPixelConverter ToIntArgbPreConverter() {
return ByteGray.ToIntFrgbConv.premult;
}
public static ByteToBytePixelConverter ToByteBgrConverter() {
return ByteGray.ToByteRgbAnyConv.bgr;
}
static class Accessor implements BytePixelAccessor {
static final BytePixelAccessor instance = new Accessor();
private Accessor() {}
@Override
public AlphaType getAlphaType() {
return AlphaType.OPAQUE;
}
@Override
public int getNumElements() {
return 1;
}
@Override
public int getArgb(byte arr[], int offset) {
int g = arr[offset] & 0xff;
return (0xff000000 | (g << 16) | (g << 8) | g);
}
@Override
public int getArgbPre(byte arr[], int offset) {
int g = arr[offset] & 0xff;
return (0xff000000 | (g << 16) | (g << 8) | g);
}
@Override
public int getArgb(ByteBuffer buf, int offset) {
int g = buf.get(offset) & 0xff;
return (0xff000000 | (g << 16) | (g << 8) | g);
}
@Override
public int getArgbPre(ByteBuffer buf, int offset) {
int g = buf.get(offset) & 0xff;
return (0xff000000 | (g << 16) | (g << 8) | g);
}
@Override
public void setArgb(byte arr[], int offset, int argb) {
arr[offset] = (byte) PixelUtils.RgbToGray(argb);
}
@Override
public void setArgbPre(byte arr[], int offset, int argbpre) {
setArgb(arr, offset, PixelUtils.PretoNonPre(argbpre));
}
@Override
public void setArgb(ByteBuffer buf, int offset, int argb) {
buf.put(offset, (byte) PixelUtils.RgbToGray(argb));
}
@Override
public void setArgbPre(ByteBuffer buf, int offset, int argbpre) {
setArgb(buf, offset, PixelUtils.PretoNonPre(argbpre));
}
}
static class ToByteBgrfConv extends BaseByteToByteConverter {
public static final ByteToBytePixelConverter nonpremult =
new ToByteBgrfConv(ByteBgra.setter);
public static final ByteToBytePixelConverter premult =
new ToByteBgrfConv(ByteBgraPre.setter);
ToByteBgrfConv(BytePixelSetter setter) {
super(ByteGray.getter, setter);
}
@Override
void doConvert(byte srcarr[], int srcoff, int srcscanbytes,
byte dstarr[], int dstoff, int dstscanbytes,
int w, int h)
{
dstscanbytes -= w * 4;
while (--h >= 0) {
for (int x = 0; x < w; x++) {
byte g = srcarr[srcoff + x];
dstarr[dstoff++] = g;
dstarr[dstoff++] = g;
dstarr[dstoff++] = g;
dstarr[dstoff++] = (byte) 0xff;
}
srcoff += srcscanbytes;
dstoff += dstscanbytes;
}
}
@Override
void doConvert(ByteBuffer srcbuf, int srcoff, int srcscanbytes,
ByteBuffer dstbuf, int dstoff, int dstscanbytes,
int w, int h)
{
dstscanbytes -= w * 4;
while (--h >= 0) {
for (int x = 0; x < w; x++) {
byte g = srcbuf.get(srcoff + x);
dstbuf.put(dstoff , g);
dstbuf.put(dstoff + 1, g);
dstbuf.put(dstoff + 2, g);
dstbuf.put(dstoff + 3, (byte) 0xff);
dstoff += 4;
}
srcoff += srcscanbytes;
dstoff += dstscanbytes;
}
}
}
static class ToIntFrgbConv extends BaseByteToIntConverter {
public static final ByteToIntPixelConverter nonpremult =
new ToIntFrgbConv(IntArgb.setter);
public static final ByteToIntPixelConverter premult =
new ToIntFrgbConv(IntArgbPre.setter);
private ToIntFrgbConv(IntPixelSetter setter) {
super(ByteGray.getter, setter);
}
@Override
void doConvert(byte srcarr[], int srcoff, int srcscanbytes,
int dstarr[], int dstoff, int dstscanints,
int w, int h)
{
while (--h >= 0) {
for (int x = 0; x < w; x++) {
int g = srcarr[srcoff + x] & 0xff;
dstarr[dstoff + x] = 0xff000000 | (g << 16) | (g << 8) | g;
}
srcoff += srcscanbytes;
dstoff += dstscanints;
}
}
@Override
void doConvert(ByteBuffer srcbuf, int srcoff, int srcscanbytes,
IntBuffer dstbuf, int dstoff, int dstscanints,
int w, int h)
{
while (--h >= 0) {
for (int x = 0; x < w; x++) {
int g = srcbuf.get(srcoff + x) & 0xff;
dstbuf.put(dstoff + x, 0xff000000 | (g << 16) | (g << 8) | g);
}
srcoff += srcscanbytes;
dstoff += dstscanints;
}
}
}
static class ToByteRgbAnyConv extends BaseByteToByteConverter {
static ToByteRgbAnyConv bgr = new ToByteRgbAnyConv(ByteBgr.setter);
private ToByteRgbAnyConv(BytePixelSetter setter) {
super(ByteGray.getter, setter);
}
@Override
void doConvert(byte[] srcarr, int srcoff, int srcscanbytes,
byte[] dstarr, int dstoff, int dstscanbytes,
int w, int h)
{
dstscanbytes -= w * 3;
while (--h >= 0) {
for (int x = 0; x < w; x++) {
int g = srcarr[srcoff + x] & 0xff;
dstarr[dstoff++] = (byte) g;
dstarr[dstoff++] = (byte) g;
dstarr[dstoff++] = (byte) g;
}
srcoff += srcscanbytes;
dstoff += dstscanbytes;
}
}
@Override
void doConvert(ByteBuffer srcbuf, int srcoff, int srcscanbytes,
ByteBuffer dstbuf, int dstoff, int dstscanbytes,
int w, int h)
{
dstscanbytes -= w * 3;
while (--h >= 0) {
for (int x = 0; x < w; x++) {
int g = srcbuf.get(srcoff + x) & 0xff;
dstbuf.put(dstoff++, (byte) g);
dstbuf.put(dstoff++, (byte) g);
dstbuf.put(dstoff++, (byte) g);
}
srcoff += srcscanbytes;
dstoff += dstscanbytes;
}
}
}
}
