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/*
* Copyright (c) 2010, 2016, 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 javafx.scene.effect;
import javafx.beans.property.BooleanProperty;
import javafx.beans.property.IntegerProperty;
import javafx.beans.property.IntegerPropertyBase;
import javafx.beans.property.SimpleBooleanProperty;
import com.sun.javafx.util.Utils;
/**
* A buffer that contains floating point data, intended for use as a parameter
* to effects such as {@link DisplacementMap}.
* @since JavaFX 2.0
*/
public class FloatMap {
private com.sun.scenario.effect.FloatMap map;
private float[] buf;
private boolean mapBufferDirty = true;
com.sun.scenario.effect.FloatMap getImpl() {
return map;
}
private void updateBuffer() {
if (getWidth() > 0 && getHeight() > 0) {
int w = Utils.clampMax(getWidth(), 4096);
int h = Utils.clampMax(getHeight(), 4096);
int size = w * h * 4;
buf = new float[size];
mapBufferDirty = true;
}
}
private void update() {
if (mapBufferDirty) {
map = new com.sun.scenario.effect.FloatMap(
Utils.clamp(1, getWidth(), 4096),
Utils.clamp(1, getHeight(), 4096));
mapBufferDirty = false;
}
map.put(buf);
}
void sync() {
if (isEffectDirty()) {
update();
clearDirty();
}
}
private BooleanProperty effectDirty;
private void setEffectDirty(boolean value) {
effectDirtyProperty().set(value);
}
final BooleanProperty effectDirtyProperty() {
if (effectDirty == null) {
effectDirty = new SimpleBooleanProperty(this, "effectDirty");
}
return effectDirty;
}
boolean isEffectDirty() {
return effectDirty == null ? false : effectDirty.get();
}
private void markDirty() {
setEffectDirty(true);
}
private void clearDirty() {
setEffectDirty(false);
}
/**
* Creates a new instance of FloatMap with default parameters.
*/
public FloatMap() {
updateBuffer();
markDirty();
}
/**
* Creates a new instance of FloatMap with the specified width and height.
* @param width the width of the map, in pixels
* @param height the height of the map, in pixels
* @since JavaFX 2.1
*/
public FloatMap(int width, int height) {
setWidth(width);
setHeight(height);
updateBuffer();
markDirty();
}
/**
* The width of the map, in pixels.
*
* @defaultValue 1
*/
private IntegerProperty height;
public final void setHeight(int value) {
heightProperty().set(value);
}
public final int getHeight() {
return height == null ? 1 : height.get();
}
public final IntegerProperty heightProperty() {
if (height == null) {
height = new IntegerPropertyBase(1) {
@Override
public void invalidated() {
updateBuffer();
markDirty();
}
@Override
public Object getBean() {
return FloatMap.this;
}
@Override
public String getName() {
return "height";
}
};
}
return height;
}
/**
* Sets the sample for a specific band at the given (x,y) location.
*
* @param x the x location
* @param y the y location
* @param band the band to set (must be 0, 1, 2, or 3)
* @param s the sample value to set
*/
public void setSample(int x, int y, int band, float s) {
buf[((x+(y*getWidth()))*4) + band] = s;
markDirty();
}
/**
* Sets the sample for the first band at the given (x,y) location.
*
* @param x the x location
* @param y the y location
* @param s0 the sample value to set for the first band
*/
public void setSamples(int x, int y, float s0)
{
int index = (x+(y*getWidth()))*4;
buf[index + 0] = s0;
markDirty();
}
/**
* Sets the sample for the first two bands at the given (x,y) location.
*
* @param x the x location
* @param y the y location
* @param s0 the sample value to set for the first band
* @param s1 the sample value to set for the second band
*/
public void setSamples(int x, int y, float s0, float s1)
{
int index = (x+(y*getWidth()))*4;
buf[index + 0] = s0;
buf[index + 1] = s1;
markDirty();
}
/**
* Sets the sample for the first three bands at the given (x,y) location.
*
* @param x the x location
* @param y the y location
* @param s0 the sample value to set for the first band
* @param s1 the sample value to set for the second band
* @param s2 the sample value to set for the third band
*/
public void setSamples(int x, int y, float s0, float s1, float s2)
{
int index = (x+(y*getWidth()))*4;
buf[index + 0] = s0;
buf[index + 1] = s1;
buf[index + 2] = s2;
markDirty();
}
/**
* Sets the sample for each of the four bands at the given (x,y) location.
*
* @param x the x location
* @param y the y location
* @param s0 the sample value to set for the first band
* @param s1 the sample value to set for the second band
* @param s2 the sample value to set for the third band
* @param s3 the sample value to set for the fourth band
*/
public void setSamples(int x, int y,
float s0, float s1, float s2, float s3)
{
int index = (x+(y*getWidth()))*4;
buf[index + 0] = s0;
buf[index + 1] = s1;
buf[index + 2] = s2;
buf[index + 3] = s3;
markDirty();
}
FloatMap copy() {
FloatMap dest = new FloatMap(this.getWidth(), this.getHeight());
System.arraycopy(buf, 0, dest.buf, 0, buf.length);
return dest;
}
}
