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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.IntPixelAccessor;
import com.sun.javafx.image.IntPixelGetter;
import com.sun.javafx.image.IntPixelSetter;
import com.sun.javafx.image.IntToIntPixelConverter;
import java.nio.IntBuffer;
public abstract class BaseIntToIntConverter
implements IntToIntPixelConverter
{
protected final IntPixelGetter getter;
protected final IntPixelSetter setter;
public BaseIntToIntConverter(IntPixelGetter getter, IntPixelSetter setter) {
this.getter = getter;
this.setter = setter;
}
@Override
public final IntPixelGetter getGetter() {
return getter;
}
@Override
public final IntPixelSetter getSetter() {
return setter;
}
abstract void doConvert(int srcarr[], int srcoff, int srcscanints,
int dstarr[], int dstoff, int dstscanints,
int w, int h);
abstract void doConvert(IntBuffer srcbuf, int srcoff, int srcscanints,
IntBuffer dstbuf, int dstoff, int dstscanints,
int w, int h);
@Override
public final void convert(int srcarr[], int srcoff, int srcscanints,
int dstarr[], int dstoff, int dstscanints,
int w, int h)
{
if (w <= 0 || h <= 0) return;
if (srcscanints == w &&
dstscanints == w)
{
w *= h;
h = 1;
}
doConvert(srcarr, srcoff, srcscanints,
dstarr, dstoff, dstscanints,
w, h);
}
@Override
public final void convert(IntBuffer srcbuf, int srcoff, int srcscanints,
IntBuffer dstbuf, int dstoff, int dstscanints,
int w, int h)
{
if (w <= 0 || h <= 0) return;
if (srcscanints == w &&
dstscanints == w)
{
w *= h;
h = 1;
}
if (srcbuf.hasArray() && dstbuf.hasArray()) {
srcoff += srcbuf.arrayOffset();
dstoff += dstbuf.arrayOffset();
doConvert(srcbuf.array(), srcoff, srcscanints,
dstbuf.array(), dstoff, dstscanints,
w, h);
} else {
doConvert(srcbuf, srcoff, srcscanints,
dstbuf, dstoff, dstscanints,
w, h);
}
}
@Override
public final void convert(IntBuffer srcbuf, int srcoff, int srcscanints,
int dstarr[], int dstoff, int dstscanints,
int w, int h)
{
if (w <= 0 || h <= 0) return;
if (srcscanints == w &&
dstscanints == w)
{
w *= h;
h = 1;
}
if (srcbuf.hasArray()) {
int srcarr[] = srcbuf.array();
srcoff += srcbuf.arrayOffset();
doConvert(srcarr, srcoff, srcscanints,
dstarr, dstoff, dstscanints,
w, h);
} else {
IntBuffer dstbuf = IntBuffer.wrap(dstarr);
doConvert(srcbuf, srcoff, srcscanints,
dstbuf, dstoff, dstscanints,
w, h);
}
}
@Override
public final void convert(int srcarr[], int srcoff, int srcscanints,
IntBuffer dstbuf, int dstoff, int dstscanints,
int w, int h)
{
if (w <= 0 || h <= 0) return;
if (srcscanints == w &&
dstscanints == w)
{
w *= h;
h = 1;
}
if (dstbuf.hasArray()) {
int dstarr[] = dstbuf.array();
dstoff += dstbuf.arrayOffset();
doConvert(srcarr, srcoff, srcscanints,
dstarr, dstoff, dstscanints,
w, h);
} else {
IntBuffer srcbuf = IntBuffer.wrap(srcarr);
doConvert(srcbuf, srcoff, srcscanints,
dstbuf, dstoff, dstscanints,
w, h);
}
}
static IntToIntPixelConverter create(IntPixelAccessor fmt) {
return new IntAnyToSameConverter(fmt);
}
static class IntAnyToSameConverter extends BaseIntToIntConverter {
IntAnyToSameConverter(IntPixelAccessor fmt) {
super(fmt, fmt);
}
@Override
void doConvert(int srcarr[], int srcoff, int srcscanints,
int dstarr[], int dstoff, int dstscanints,
int w, int h)
{
while (--h >= 0) {
System.arraycopy(srcarr, srcoff, dstarr, dstoff, w);
srcoff += srcscanints;
dstoff += dstscanints;
}
}
@Override
void doConvert(IntBuffer srcbuf, int srcoff, int srcscanints,
IntBuffer dstbuf, int dstoff, int dstscanints,
int w, int h)
{
int srclimit = srcbuf.limit();
int origsrcpos = srcbuf.position();
int origdstpos = dstbuf.position();
try {
while (--h >= 0) {
int newlimit = srcoff + w;
if (newlimit > srclimit) {
throw new IndexOutOfBoundsException("" + srclimit);
}
srcbuf.limit(newlimit);
srcbuf.position(srcoff);
dstbuf.position(dstoff);
dstbuf.put(srcbuf);
srcoff += srcscanints;
dstoff += dstscanints;
}
} finally {
srcbuf.limit(srclimit);
srcbuf.position(origsrcpos);
dstbuf.position(origdstpos);
}
}
}
}
