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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.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.PixelUtils;
import java.nio.ByteBuffer;
import java.nio.IntBuffer;
public class ByteBgraPre {
public static final BytePixelGetter getter = Accessor.instance;
public static final BytePixelSetter setter = Accessor.instance;
public static final BytePixelAccessor accessor = Accessor.instance;
public static final ByteToBytePixelConverter ToByteBgraConverter =
ByteBgraPre.ToByteBgraConv.instance;
public static final ByteToBytePixelConverter ToByteBgraPreConverter =
BaseByteToByteConverter.create(accessor);
public static final ByteToIntPixelConverter ToIntArgbConverter =
ByteBgraPre.ToIntArgbConv.instance;
public static final ByteToIntPixelConverter ToIntArgbPreConverter =
ByteBgra.ToIntArgbSameConv.premul;
static class Accessor implements BytePixelAccessor {
static final BytePixelAccessor instance = new Accessor();
private Accessor() {}
@Override
public AlphaType getAlphaType() {
return AlphaType.PREMULTIPLIED;
}
@Override
public int getNumElements() {
return 4;
}
@Override
public int getArgb(byte arr[], int offset) {
return PixelUtils.PretoNonPre(getArgbPre(arr, offset));
}
@Override
public int getArgbPre(byte arr[], int offset) {
return (((arr[offset ] & 0xff) ) |
((arr[offset + 1] & 0xff) << 8) |
((arr[offset + 2] & 0xff) << 16) |
((arr[offset + 3] ) << 24));
}
@Override
public int getArgb(ByteBuffer buffer, int offset) {
return PixelUtils.PretoNonPre(getArgbPre(buffer, offset));
}
@Override
public int getArgbPre(ByteBuffer buffer, int offset) {
return (((buffer.get(offset ) & 0xff) ) |
((buffer.get(offset + 1) & 0xff) << 8) |
((buffer.get(offset + 2) & 0xff) << 16) |
((buffer.get(offset + 3) ) << 24));
}
@Override
public void setArgb(byte arr[], int offset, int argb) {
setArgbPre(arr, offset, PixelUtils.NonPretoPre(argb));
}
@Override
public void setArgbPre(byte arr[], int offset, int argbpre) {
arr[offset ] = (byte) (argbpre );
arr[offset + 1] = (byte) (argbpre >> 8);
arr[offset + 2] = (byte) (argbpre >> 16);
arr[offset + 3] = (byte) (argbpre >> 24);
}
@Override
public void setArgb(ByteBuffer buffer, int offset, int argb) {
setArgbPre(buffer, offset, PixelUtils.NonPretoPre(argb));
}
@Override
public void setArgbPre(ByteBuffer buffer, int offset, int argbpre) {
buffer.put(offset , (byte) (argbpre ));
buffer.put(offset + 1, (byte) (argbpre >> 8));
buffer.put(offset + 2, (byte) (argbpre >> 16));
buffer.put(offset + 3, (byte) (argbpre >> 24));
}
}
public static class ToByteBgraConv extends BaseByteToByteConverter {
public static final ByteToBytePixelConverter instance =
new ToByteBgraConv();
private ToByteBgraConv() {
super(ByteBgraPre.getter, ByteBgra.setter);
}
@Override
void doConvert(byte srcarr[], int srcoff, int srcscanbytes,
byte dstarr[], int dstoff, int dstscanbytes,
int w, int h)
{
srcscanbytes -= w * 4;
dstscanbytes -= w * 4;
while (--h >= 0) {
for (int x = 0; x < w; x++) {
byte b = srcarr[srcoff++];
byte g = srcarr[srcoff++];
byte r = srcarr[srcoff++];
int a = srcarr[srcoff++] & 0xff;
if (a > 0 && a < 0xff) {
int halfa = a >> 1;
b = (byte) (((b & 0xff) * 0xff + halfa) / a);
g = (byte) (((g & 0xff) * 0xff + halfa) / a);
r = (byte) (((r & 0xff) * 0xff + halfa) / a);
}
dstarr[dstoff++] = b;
dstarr[dstoff++] = g;
dstarr[dstoff++] = r;
dstarr[dstoff++] = (byte) a;
}
srcoff += srcscanbytes;
dstoff += dstscanbytes;
}
}
@Override
void doConvert(ByteBuffer srcbuf, int srcoff, int srcscanbytes,
ByteBuffer dstbuf, int dstoff, int dstscanbytes,
int w, int h)
{
srcscanbytes -= w * 4;
dstscanbytes -= w * 4;
while (--h >= 0) {
for (int x = 0; x < w; x++) {
byte b = srcbuf.get(srcoff );
byte g = srcbuf.get(srcoff + 1);
byte r = srcbuf.get(srcoff + 2);
int a = srcbuf.get(srcoff + 3) & 0xff;
srcoff += 4;
if (a > 0 && a < 0xff) {
int halfa = a >> 1;
b = (byte) (((b & 0xff) * 0xff + halfa) / a);
g = (byte) (((g & 0xff) * 0xff + halfa) / a);
r = (byte) (((r & 0xff) * 0xff + halfa) / a);
}
dstbuf.put(dstoff , b);
dstbuf.put(dstoff + 1, g);
dstbuf.put(dstoff + 2, r);
dstbuf.put(dstoff + 3, (byte) a);
dstoff += 4;
}
srcoff += srcscanbytes;
dstoff += dstscanbytes;
}
}
}
public static class ToIntArgbConv extends BaseByteToIntConverter {
public static final ByteToIntPixelConverter instance =
new ToIntArgbConv();
private ToIntArgbConv() {
super(ByteBgraPre.getter, IntArgb.setter);
}
@Override
void doConvert(byte srcarr[], int srcoff, int srcscanbytes,
int dstarr[], int dstoff, int dstscanints,
int w, int h)
{
srcscanbytes -= w * 4;
dstscanints -= w;
while (--h >= 0) {
for (int x = 0; x < w; x++) {
int b = srcarr[srcoff++] & 0xff;
int g = srcarr[srcoff++] & 0xff;
int r = srcarr[srcoff++] & 0xff;
int a = srcarr[srcoff++] & 0xff;
if (a > 0 && a < 0xff) {
int halfa = a >> 1;
r = (r * 0xff + halfa) / a;
g = (g * 0xff + halfa) / a;
b = (b * 0xff + halfa) / a;
}
dstarr[dstoff++] =
(a << 24) | (r << 16) | (g << 8) | b;
}
dstoff += dstscanints;
srcoff += srcscanbytes;
}
}
@Override
void doConvert(ByteBuffer srcbuf, int srcoff, int srcscanbytes,
IntBuffer dstbuf, int dstoff, int dstscanints,
int w, int h)
{
srcscanbytes -= w * 4;
while (--h >= 0) {
for (int x = 0; x < w; x++) {
int b = srcbuf.get(srcoff ) & 0xff;
int g = srcbuf.get(srcoff + 1) & 0xff;
int r = srcbuf.get(srcoff + 2) & 0xff;
int a = srcbuf.get(srcoff + 3) & 0xff;
srcoff += 4;
if (a > 0 && a < 0xff) {
int halfa = a >> 1;
r = (r * 0xff + halfa) / a;
g = (g * 0xff + halfa) / a;
b = (b * 0xff + halfa) / a;
}
dstbuf.put(dstoff + x, (a << 24) | (r << 16) | (g << 8) | b);
}
dstoff += dstscanints;
srcoff += srcscanbytes;
}
}
}
}
