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This is a backport of OpenJFX 8 to run on Java 7.
The newest version!
/*
* 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.impl;
import com.sun.javafx.image.AlphaType;
import com.sun.javafx.image.IntPixelAccessor;
import com.sun.javafx.image.IntPixelGetter;
import com.sun.javafx.image.IntPixelSetter;
import com.sun.javafx.image.IntToBytePixelConverter;
import com.sun.javafx.image.IntToIntPixelConverter;
import com.sun.javafx.image.PixelUtils;
import java.nio.ByteBuffer;
import java.nio.IntBuffer;
public class IntArgb {
public static final IntPixelGetter getter = Accessor.instance;
public static final IntPixelSetter setter = Accessor.instance;
public static final IntPixelAccessor accessor = Accessor.instance;
public static final IntToBytePixelConverter ToByteBgraConverter =
new IntTo4ByteSameConverter(IntArgb.getter, ByteBgra.setter);
public static final IntToBytePixelConverter ToByteBgraPreConverter =
IntArgb.ToByteBgraPreConv.instance;
public static final IntToIntPixelConverter ToIntArgbConverter =
BaseIntToIntConverter.create(accessor);
public static final IntToIntPixelConverter ToIntArgbPreConverter =
IntArgb.ToIntArgbPreConv.instance;
static class Accessor implements IntPixelAccessor {
static final IntPixelAccessor instance = new Accessor();
private Accessor() {}
@Override
public AlphaType getAlphaType() {
return AlphaType.NONPREMULTIPLIED;
}
@Override
public int getNumElements() {
return 1;
}
@Override
public int getArgb(int arr[], int offset) {
return arr[offset];
}
@Override
public int getArgbPre(int arr[], int offset) {
return PixelUtils.NonPretoPre(arr[offset]);
}
@Override
public int getArgb(IntBuffer buffer, int offset) {
return buffer.get(offset);
}
@Override
public int getArgbPre(IntBuffer buffer, int offset) {
return PixelUtils.NonPretoPre(buffer.get(offset));
}
@Override
public void setArgb(int arr[], int offset, int argb) {
arr[offset] = argb;
}
@Override
public void setArgbPre(int arr[], int offset, int argbpre) {
arr[offset] = PixelUtils.PretoNonPre(argbpre);
}
@Override
public void setArgb(IntBuffer buffer, int offset, int argb) {
buffer.put(offset, argb);
}
@Override
public void setArgbPre(IntBuffer buffer, int offset, int argbpre) {
buffer.put(offset, PixelUtils.PretoNonPre(argbpre));
}
}
public static class ToIntArgbPreConv extends BaseIntToIntConverter {
public static final IntToIntPixelConverter instance =
new ToIntArgbPreConv();
private ToIntArgbPreConv() {
super(IntArgb.getter, IntArgbPre.setter);
}
@Override
void doConvert(int srcarr[], int srcoff, int srcscanints,
int dstarr[], int dstoff, int dstscanints,
int w, int h)
{
srcscanints -= w;
dstscanints -= w;
while (--h >= 0) {
for (int x = 0; x < w; x++) {
int pixel = srcarr[srcoff++];
int a = pixel >>> 24;
if (a < 0xff) {
if (a == 0) {
pixel = 0;
} else {
int r = (((pixel >> 16) & 0xff) * a + 0x7f) / 0xff;
int g = (((pixel >> 8) & 0xff) * a + 0x7f) / 0xff;
int b = (((pixel ) & 0xff) * a + 0x7f) / 0xff;
pixel = (a << 24) | (r << 16) | (g << 8) | b;
}
}
dstarr[dstoff++] = pixel;
}
srcoff += srcscanints;
dstoff += dstscanints;
}
}
@Override
void doConvert(IntBuffer srcbuf, int srcoff, int srcscanints,
IntBuffer dstbuf, int dstoff, int dstscanints,
int w, int h)
{
while (--h >= 0) {
for (int x = 0; x < w; x++) {
int pixel = srcbuf.get(srcoff + x);
int a = pixel >>> 24;
if (a < 0xff) {
if (a == 0) {
pixel = 0;
} else {
int r = (((pixel >> 16) & 0xff) * a + 0x7f) / 0xff;
int g = (((pixel >> 8) & 0xff) * a + 0x7f) / 0xff;
int b = (((pixel ) & 0xff) * a + 0x7f) / 0xff;
pixel = (a << 24) | (r << 16) | (g << 8) | b;
}
}
dstbuf.put(dstoff + x, pixel);
}
srcoff += srcscanints;
dstoff += dstscanints;
}
}
}
static class ToByteBgraPreConv extends BaseIntToByteConverter {
public static final IntToBytePixelConverter instance =
new ToByteBgraPreConv();
private ToByteBgraPreConv() {
super(IntArgb.getter, ByteBgraPre.setter);
}
@Override
void doConvert(int srcarr[], int srcoff, int srcscanints,
byte dstarr[], int dstoff, int dstscanbytes,
int w, int h)
{
srcscanints -= w;
dstscanbytes -= w * 4;
while (--h >= 0) {
for (int x = 0; x < w; x++) {
int pixel = srcarr[srcoff++];
int a = pixel >>> 24;
int r = pixel >> 16;
int g = pixel >> 8;
int b = pixel ;
if (a < 0xff) {
if (a == 0) {
b = g = r = 0;
} else {
b = ((b & 0xff) * a + 0x7f) / 0xff;
g = ((g & 0xff) * a + 0x7f) / 0xff;
r = ((r & 0xff) * a + 0x7f) / 0xff;
}
}
dstarr[dstoff++] = (byte) b;
dstarr[dstoff++] = (byte) g;
dstarr[dstoff++] = (byte) r;
dstarr[dstoff++] = (byte) a;
}
srcoff += srcscanints;
dstoff += dstscanbytes;
}
}
@Override
void doConvert(IntBuffer srcbuf, int srcoff, int srcscanints,
ByteBuffer dstbuf, int dstoff, int dstscanbytes,
int w, int h)
{
dstscanbytes -= w * 4;
while (--h >= 0) {
for (int x = 0; x < w; x++) {
int pixel = srcbuf.get(srcoff + x);
int a = pixel >>> 24;
int r = pixel >> 16;
int g = pixel >> 8;
int b = pixel ;
if (a < 0xff) {
if (a == 0) {
b = g = r = 0;
} else {
b = ((b & 0xff) * a + 0x7f) / 0xff;
g = ((g & 0xff) * a + 0x7f) / 0xff;
r = ((r & 0xff) * a + 0x7f) / 0xff;
}
}
dstbuf.put(dstoff , (byte) b);
dstbuf.put(dstoff + 1, (byte) g);
dstbuf.put(dstoff + 2, (byte) r);
dstbuf.put(dstoff + 3, (byte) a);
dstoff += 4;
}
srcoff += srcscanints;
dstoff += dstscanbytes;
}
}
}
}