Merge "Add BlendComposite.java"
This commit is contained in:
Deepanshu Gupta
772
tools/layoutlib/bridge/src/android/graphics/BlendComposite.java
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772
tools/layoutlib/bridge/src/android/graphics/BlendComposite.java
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/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.graphics;
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import java.awt.Composite;
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import java.awt.CompositeContext;
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import java.awt.RenderingHints;
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import java.awt.image.ColorModel;
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import java.awt.image.DataBuffer;
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import java.awt.image.Raster;
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import java.awt.image.WritableRaster;
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/*
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* (non-Javadoc)
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* The class is adapted from a demo tool for Blending Modes written by
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* Romain Guy (romainguy@android.com). The tool is available at
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* http://www.curious-creature.org/2006/09/20/new-blendings-modes-for-java2d/
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*/
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public final class BlendComposite implements Composite {
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public enum BlendingMode {
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NORMAL,
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AVERAGE,
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MULTIPLY,
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SCREEN,
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DARKEN,
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LIGHTEN,
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OVERLAY,
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HARD_LIGHT,
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SOFT_LIGHT,
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DIFFERENCE,
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NEGATION,
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EXCLUSION,
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COLOR_DODGE,
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INVERSE_COLOR_DODGE,
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SOFT_DODGE,
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COLOR_BURN,
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INVERSE_COLOR_BURN,
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SOFT_BURN,
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REFLECT,
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GLOW,
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FREEZE,
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HEAT,
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ADD,
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SUBTRACT,
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STAMP,
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RED,
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GREEN,
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BLUE,
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HUE,
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SATURATION,
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COLOR,
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LUMINOSITY
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}
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public static final BlendComposite Normal = new BlendComposite(BlendingMode.NORMAL);
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public static final BlendComposite Average = new BlendComposite(BlendingMode.AVERAGE);
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public static final BlendComposite Multiply = new BlendComposite(BlendingMode.MULTIPLY);
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public static final BlendComposite Screen = new BlendComposite(BlendingMode.SCREEN);
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public static final BlendComposite Darken = new BlendComposite(BlendingMode.DARKEN);
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public static final BlendComposite Lighten = new BlendComposite(BlendingMode.LIGHTEN);
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public static final BlendComposite Overlay = new BlendComposite(BlendingMode.OVERLAY);
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public static final BlendComposite HardLight = new BlendComposite(BlendingMode.HARD_LIGHT);
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public static final BlendComposite SoftLight = new BlendComposite(BlendingMode.SOFT_LIGHT);
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public static final BlendComposite Difference = new BlendComposite(BlendingMode.DIFFERENCE);
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public static final BlendComposite Negation = new BlendComposite(BlendingMode.NEGATION);
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public static final BlendComposite Exclusion = new BlendComposite(BlendingMode.EXCLUSION);
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public static final BlendComposite ColorDodge = new BlendComposite(BlendingMode.COLOR_DODGE);
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public static final BlendComposite InverseColorDodge = new BlendComposite(BlendingMode.INVERSE_COLOR_DODGE);
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public static final BlendComposite SoftDodge = new BlendComposite(BlendingMode.SOFT_DODGE);
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public static final BlendComposite ColorBurn = new BlendComposite(BlendingMode.COLOR_BURN);
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public static final BlendComposite InverseColorBurn = new BlendComposite(BlendingMode.INVERSE_COLOR_BURN);
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public static final BlendComposite SoftBurn = new BlendComposite(BlendingMode.SOFT_BURN);
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public static final BlendComposite Reflect = new BlendComposite(BlendingMode.REFLECT);
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public static final BlendComposite Glow = new BlendComposite(BlendingMode.GLOW);
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public static final BlendComposite Freeze = new BlendComposite(BlendingMode.FREEZE);
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public static final BlendComposite Heat = new BlendComposite(BlendingMode.HEAT);
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public static final BlendComposite Add = new BlendComposite(BlendingMode.ADD);
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public static final BlendComposite Subtract = new BlendComposite(BlendingMode.SUBTRACT);
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public static final BlendComposite Stamp = new BlendComposite(BlendingMode.STAMP);
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public static final BlendComposite Red = new BlendComposite(BlendingMode.RED);
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public static final BlendComposite Green = new BlendComposite(BlendingMode.GREEN);
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public static final BlendComposite Blue = new BlendComposite(BlendingMode.BLUE);
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public static final BlendComposite Hue = new BlendComposite(BlendingMode.HUE);
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public static final BlendComposite Saturation = new BlendComposite(BlendingMode.SATURATION);
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public static final BlendComposite Color = new BlendComposite(BlendingMode.COLOR);
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public static final BlendComposite Luminosity = new BlendComposite(BlendingMode.LUMINOSITY);
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private float alpha;
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private BlendingMode mode;
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private BlendComposite(BlendingMode mode) {
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this(mode, 1.0f);
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}
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private BlendComposite(BlendingMode mode, float alpha) {
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this.mode = mode;
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setAlpha(alpha);
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}
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public static BlendComposite getInstance(BlendingMode mode) {
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return new BlendComposite(mode);
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}
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public static BlendComposite getInstance(BlendingMode mode, float alpha) {
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return new BlendComposite(mode, alpha);
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}
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public BlendComposite derive(BlendingMode mode) {
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return this.mode == mode ? this : new BlendComposite(mode, getAlpha());
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}
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public BlendComposite derive(float alpha) {
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return this.alpha == alpha ? this : new BlendComposite(getMode(), alpha);
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}
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public float getAlpha() {
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return alpha;
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}
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public BlendingMode getMode() {
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return mode;
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}
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private void setAlpha(float alpha) {
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if (alpha < 0.0f || alpha > 1.0f) {
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throw new IllegalArgumentException(
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"alpha must be comprised between 0.0f and 1.0f");
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}
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this.alpha = alpha;
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}
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@Override
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public int hashCode() {
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return Float.floatToIntBits(alpha) * 31 + mode.ordinal();
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}
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@Override
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public boolean equals(Object obj) {
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if (!(obj instanceof BlendComposite)) {
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return false;
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}
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BlendComposite bc = (BlendComposite) obj;
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if (mode != bc.mode) {
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return false;
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}
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return alpha == bc.alpha;
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}
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public CompositeContext createContext(ColorModel srcColorModel,
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ColorModel dstColorModel,
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RenderingHints hints) {
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return new BlendingContext(this);
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}
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private static final class BlendingContext implements CompositeContext {
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private final Blender blender;
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private final BlendComposite composite;
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private BlendingContext(BlendComposite composite) {
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this.composite = composite;
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this.blender = Blender.getBlenderFor(composite);
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}
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public void dispose() {
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}
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public void compose(Raster src, Raster dstIn, WritableRaster dstOut) {
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if (src.getSampleModel().getDataType() != DataBuffer.TYPE_INT ||
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dstIn.getSampleModel().getDataType() != DataBuffer.TYPE_INT ||
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dstOut.getSampleModel().getDataType() != DataBuffer.TYPE_INT) {
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throw new IllegalStateException(
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"Source and destination must store pixels as INT.");
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}
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int width = Math.min(src.getWidth(), dstIn.getWidth());
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int height = Math.min(src.getHeight(), dstIn.getHeight());
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float alpha = composite.getAlpha();
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int[] srcPixel = new int[4];
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int[] dstPixel = new int[4];
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int[] srcPixels = new int[width];
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int[] dstPixels = new int[width];
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for (int y = 0; y < height; y++) {
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src.getDataElements(0, y, width, 1, srcPixels);
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dstIn.getDataElements(0, y, width, 1, dstPixels);
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for (int x = 0; x < width; x++) {
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// pixels are stored as INT_ARGB
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// our arrays are [R, G, B, A]
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int pixel = srcPixels[x];
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srcPixel[0] = (pixel >> 16) & 0xFF;
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srcPixel[1] = (pixel >> 8) & 0xFF;
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srcPixel[2] = (pixel ) & 0xFF;
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srcPixel[3] = (pixel >> 24) & 0xFF;
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pixel = dstPixels[x];
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dstPixel[0] = (pixel >> 16) & 0xFF;
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dstPixel[1] = (pixel >> 8) & 0xFF;
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dstPixel[2] = (pixel ) & 0xFF;
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dstPixel[3] = (pixel >> 24) & 0xFF;
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int[] result = blender.blend(srcPixel, dstPixel);
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// mixes the result with the opacity
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dstPixels[x] = ((int) (dstPixel[3] + (result[3] - dstPixel[3]) * alpha) & 0xFF) << 24 |
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((int) (dstPixel[0] + (result[0] - dstPixel[0]) * alpha) & 0xFF) << 16 |
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((int) (dstPixel[1] + (result[1] - dstPixel[1]) * alpha) & 0xFF) << 8 |
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(int) (dstPixel[2] + (result[2] - dstPixel[2]) * alpha) & 0xFF;
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}
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dstOut.setDataElements(0, y, width, 1, dstPixels);
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}
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}
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}
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private static abstract class Blender {
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public abstract int[] blend(int[] src, int[] dst);
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private static void RGBtoHSL(int r, int g, int b, float[] hsl) {
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float var_R = (r / 255f);
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float var_G = (g / 255f);
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float var_B = (b / 255f);
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float var_Min;
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float var_Max;
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float del_Max;
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if (var_R > var_G) {
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var_Min = var_G;
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var_Max = var_R;
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} else {
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var_Min = var_R;
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var_Max = var_G;
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}
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if (var_B > var_Max) {
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var_Max = var_B;
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}
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if (var_B < var_Min) {
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var_Min = var_B;
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}
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del_Max = var_Max - var_Min;
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float H, S, L;
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L = (var_Max + var_Min) / 2f;
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if (del_Max - 0.01f <= 0.0f) {
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H = 0;
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S = 0;
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} else {
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if (L < 0.5f) {
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S = del_Max / (var_Max + var_Min);
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} else {
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S = del_Max / (2 - var_Max - var_Min);
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}
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float del_R = (((var_Max - var_R) / 6f) + (del_Max / 2f)) / del_Max;
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float del_G = (((var_Max - var_G) / 6f) + (del_Max / 2f)) / del_Max;
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float del_B = (((var_Max - var_B) / 6f) + (del_Max / 2f)) / del_Max;
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if (var_R == var_Max) {
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H = del_B - del_G;
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} else if (var_G == var_Max) {
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H = (1 / 3f) + del_R - del_B;
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} else {
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H = (2 / 3f) + del_G - del_R;
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}
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if (H < 0) {
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H += 1;
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}
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if (H > 1) {
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H -= 1;
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}
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}
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hsl[0] = H;
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hsl[1] = S;
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hsl[2] = L;
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}
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private static void HSLtoRGB(float h, float s, float l, int[] rgb) {
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int R, G, B;
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if (s - 0.01f <= 0.0f) {
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R = (int) (l * 255.0f);
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G = (int) (l * 255.0f);
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B = (int) (l * 255.0f);
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} else {
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float var_1, var_2;
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if (l < 0.5f) {
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var_2 = l * (1 + s);
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} else {
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var_2 = (l + s) - (s * l);
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}
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var_1 = 2 * l - var_2;
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R = (int) (255.0f * hue2RGB(var_1, var_2, h + (1.0f / 3.0f)));
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G = (int) (255.0f * hue2RGB(var_1, var_2, h));
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B = (int) (255.0f * hue2RGB(var_1, var_2, h - (1.0f / 3.0f)));
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}
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rgb[0] = R;
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rgb[1] = G;
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rgb[2] = B;
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}
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private static float hue2RGB(float v1, float v2, float vH) {
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if (vH < 0.0f) {
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vH += 1.0f;
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}
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if (vH > 1.0f) {
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vH -= 1.0f;
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}
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if ((6.0f * vH) < 1.0f) {
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return (v1 + (v2 - v1) * 6.0f * vH);
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}
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if ((2.0f * vH) < 1.0f) {
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return (v2);
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}
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if ((3.0f * vH) < 2.0f) {
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return (v1 + (v2 - v1) * ((2.0f / 3.0f) - vH) * 6.0f);
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}
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return (v1);
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}
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public static Blender getBlenderFor(BlendComposite composite) {
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switch (composite.getMode()) {
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case NORMAL:
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return new Blender() {
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@Override
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public int[] blend(int[] src, int[] dst) {
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return src;
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}
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};
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case ADD:
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return new Blender() {
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@Override
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public int[] blend(int[] src, int[] dst) {
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return new int[] {
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Math.min(255, src[0] + dst[0]),
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Math.min(255, src[1] + dst[1]),
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Math.min(255, src[2] + dst[2]),
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Math.min(255, src[3] + dst[3])
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};
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}
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};
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case AVERAGE:
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return new Blender() {
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@Override
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public int[] blend(int[] src, int[] dst) {
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return new int[] {
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(src[0] + dst[0]) >> 1,
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(src[1] + dst[1]) >> 1,
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(src[2] + dst[2]) >> 1,
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Math.min(255, src[3] + dst[3])
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};
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}
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};
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case BLUE:
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return new Blender() {
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@Override
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public int[] blend(int[] src, int[] dst) {
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return new int[] {
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dst[0],
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src[1],
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dst[2],
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Math.min(255, src[3] + dst[3])
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};
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}
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};
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case COLOR:
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return new Blender() {
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@Override
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public int[] blend(int[] src, int[] dst) {
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float[] srcHSL = new float[3];
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RGBtoHSL(src[0], src[1], src[2], srcHSL);
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float[] dstHSL = new float[3];
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RGBtoHSL(dst[0], dst[1], dst[2], dstHSL);
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int[] result = new int[4];
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HSLtoRGB(srcHSL[0], srcHSL[1], dstHSL[2], result);
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result[3] = Math.min(255, src[3] + dst[3]);
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return result;
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}
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};
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case COLOR_BURN:
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return new Blender() {
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@Override
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public int[] blend(int[] src, int[] dst) {
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return new int[] {
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src[0] == 0 ? 0 :
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Math.max(0, 255 - (((255 - dst[0]) << 8) / src[0])),
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src[1] == 0 ? 0 :
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Math.max(0, 255 - (((255 - dst[1]) << 8) / src[1])),
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src[2] == 0 ? 0 :
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Math.max(0, 255 - (((255 - dst[2]) << 8) / src[2])),
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Math.min(255, src[3] + dst[3])
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};
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}
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};
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case COLOR_DODGE:
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return new Blender() {
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@Override
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public int[] blend(int[] src, int[] dst) {
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return new int[] {
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||||
src[0] == 255 ? 255 :
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Math.min((dst[0] << 8) / (255 - src[0]), 255),
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src[1] == 255 ? 255 :
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Math.min((dst[1] << 8) / (255 - src[1]), 255),
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src[2] == 255 ? 255 :
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Math.min((dst[2] << 8) / (255 - src[2]), 255),
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Math.min(255, src[3] + dst[3])
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};
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||||
}
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||||
};
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case DARKEN:
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return new Blender() {
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||||
@Override
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||||
public int[] blend(int[] src, int[] dst) {
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return new int[] {
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||||
Math.min(src[0], dst[0]),
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||||
Math.min(src[1], dst[1]),
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||||
Math.min(src[2], dst[2]),
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Math.min(255, src[3] + dst[3])
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||||
};
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||||
}
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||||
};
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case DIFFERENCE:
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return new Blender() {
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||||
@Override
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||||
public int[] blend(int[] src, int[] dst) {
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||||
return new int[] {
|
||||
Math.abs(dst[0] - src[0]),
|
||||
Math.abs(dst[1] - src[1]),
|
||||
Math.abs(dst[2] - src[2]),
|
||||
Math.min(255, src[3] + dst[3])
|
||||
};
|
||||
}
|
||||
};
|
||||
case EXCLUSION:
|
||||
return new Blender() {
|
||||
@Override
|
||||
public int[] blend(int[] src, int[] dst) {
|
||||
return new int[] {
|
||||
dst[0] + src[0] - (dst[0] * src[0] >> 7),
|
||||
dst[1] + src[1] - (dst[1] * src[1] >> 7),
|
||||
dst[2] + src[2] - (dst[2] * src[2] >> 7),
|
||||
Math.min(255, src[3] + dst[3])
|
||||
};
|
||||
}
|
||||
};
|
||||
case FREEZE:
|
||||
return new Blender() {
|
||||
@Override
|
||||
public int[] blend(int[] src, int[] dst) {
|
||||
return new int[] {
|
||||
src[0] == 0 ? 0 : Math.max(0, 255 - (255 - dst[0]) * (255 - dst[0]) / src[0]),
|
||||
src[1] == 0 ? 0 : Math.max(0, 255 - (255 - dst[1]) * (255 - dst[1]) / src[1]),
|
||||
src[2] == 0 ? 0 : Math.max(0, 255 - (255 - dst[2]) * (255 - dst[2]) / src[2]),
|
||||
Math.min(255, src[3] + dst[3])
|
||||
};
|
||||
}
|
||||
};
|
||||
case GLOW:
|
||||
return new Blender() {
|
||||
@Override
|
||||
public int[] blend(int[] src, int[] dst) {
|
||||
return new int[] {
|
||||
dst[0] == 255 ? 255 : Math.min(255, src[0] * src[0] / (255 - dst[0])),
|
||||
dst[1] == 255 ? 255 : Math.min(255, src[1] * src[1] / (255 - dst[1])),
|
||||
dst[2] == 255 ? 255 : Math.min(255, src[2] * src[2] / (255 - dst[2])),
|
||||
Math.min(255, src[3] + dst[3])
|
||||
};
|
||||
}
|
||||
};
|
||||
case GREEN:
|
||||
return new Blender() {
|
||||
@Override
|
||||
public int[] blend(int[] src, int[] dst) {
|
||||
return new int[] {
|
||||
dst[0],
|
||||
dst[1],
|
||||
src[2],
|
||||
Math.min(255, src[3] + dst[3])
|
||||
};
|
||||
}
|
||||
};
|
||||
case HARD_LIGHT:
|
||||
return new Blender() {
|
||||
@Override
|
||||
public int[] blend(int[] src, int[] dst) {
|
||||
return new int[] {
|
||||
src[0] < 128 ? dst[0] * src[0] >> 7 :
|
||||
255 - ((255 - src[0]) * (255 - dst[0]) >> 7),
|
||||
src[1] < 128 ? dst[1] * src[1] >> 7 :
|
||||
255 - ((255 - src[1]) * (255 - dst[1]) >> 7),
|
||||
src[2] < 128 ? dst[2] * src[2] >> 7 :
|
||||
255 - ((255 - src[2]) * (255 - dst[2]) >> 7),
|
||||
Math.min(255, src[3] + dst[3])
|
||||
};
|
||||
}
|
||||
};
|
||||
case HEAT:
|
||||
return new Blender() {
|
||||
@Override
|
||||
public int[] blend(int[] src, int[] dst) {
|
||||
return new int[] {
|
||||
dst[0] == 0 ? 0 : Math.max(0, 255 - (255 - src[0]) * (255 - src[0]) / dst[0]),
|
||||
dst[1] == 0 ? 0 : Math.max(0, 255 - (255 - src[1]) * (255 - src[1]) / dst[1]),
|
||||
dst[2] == 0 ? 0 : Math.max(0, 255 - (255 - src[2]) * (255 - src[2]) / dst[2]),
|
||||
Math.min(255, src[3] + dst[3])
|
||||
};
|
||||
}
|
||||
};
|
||||
case HUE:
|
||||
return new Blender() {
|
||||
@Override
|
||||
public int[] blend(int[] src, int[] dst) {
|
||||
float[] srcHSL = new float[3];
|
||||
RGBtoHSL(src[0], src[1], src[2], srcHSL);
|
||||
float[] dstHSL = new float[3];
|
||||
RGBtoHSL(dst[0], dst[1], dst[2], dstHSL);
|
||||
|
||||
int[] result = new int[4];
|
||||
HSLtoRGB(srcHSL[0], dstHSL[1], dstHSL[2], result);
|
||||
result[3] = Math.min(255, src[3] + dst[3]);
|
||||
|
||||
return result;
|
||||
}
|
||||
};
|
||||
case INVERSE_COLOR_BURN:
|
||||
return new Blender() {
|
||||
@Override
|
||||
public int[] blend(int[] src, int[] dst) {
|
||||
return new int[] {
|
||||
dst[0] == 0 ? 0 :
|
||||
Math.max(0, 255 - (((255 - src[0]) << 8) / dst[0])),
|
||||
dst[1] == 0 ? 0 :
|
||||
Math.max(0, 255 - (((255 - src[1]) << 8) / dst[1])),
|
||||
dst[2] == 0 ? 0 :
|
||||
Math.max(0, 255 - (((255 - src[2]) << 8) / dst[2])),
|
||||
Math.min(255, src[3] + dst[3])
|
||||
};
|
||||
}
|
||||
};
|
||||
case INVERSE_COLOR_DODGE:
|
||||
return new Blender() {
|
||||
@Override
|
||||
public int[] blend(int[] src, int[] dst) {
|
||||
return new int[] {
|
||||
dst[0] == 255 ? 255 :
|
||||
Math.min((src[0] << 8) / (255 - dst[0]), 255),
|
||||
dst[1] == 255 ? 255 :
|
||||
Math.min((src[1] << 8) / (255 - dst[1]), 255),
|
||||
dst[2] == 255 ? 255 :
|
||||
Math.min((src[2] << 8) / (255 - dst[2]), 255),
|
||||
Math.min(255, src[3] + dst[3])
|
||||
};
|
||||
}
|
||||
};
|
||||
case LIGHTEN:
|
||||
return new Blender() {
|
||||
@Override
|
||||
public int[] blend(int[] src, int[] dst) {
|
||||
return new int[] {
|
||||
Math.max(src[0], dst[0]),
|
||||
Math.max(src[1], dst[1]),
|
||||
Math.max(src[2], dst[2]),
|
||||
Math.min(255, src[3] + dst[3])
|
||||
};
|
||||
}
|
||||
};
|
||||
case LUMINOSITY:
|
||||
return new Blender() {
|
||||
@Override
|
||||
public int[] blend(int[] src, int[] dst) {
|
||||
float[] srcHSL = new float[3];
|
||||
RGBtoHSL(src[0], src[1], src[2], srcHSL);
|
||||
float[] dstHSL = new float[3];
|
||||
RGBtoHSL(dst[0], dst[1], dst[2], dstHSL);
|
||||
|
||||
int[] result = new int[4];
|
||||
HSLtoRGB(dstHSL[0], dstHSL[1], srcHSL[2], result);
|
||||
result[3] = Math.min(255, src[3] + dst[3]);
|
||||
|
||||
return result;
|
||||
}
|
||||
};
|
||||
case MULTIPLY:
|
||||
return new Blender() {
|
||||
@Override
|
||||
public int[] blend(int[] src, int[] dst) {
|
||||
return new int[] {
|
||||
(src[0] * dst[0]) >> 8,
|
||||
(src[1] * dst[1]) >> 8,
|
||||
(src[2] * dst[2]) >> 8,
|
||||
Math.min(255, src[3] + dst[3])
|
||||
};
|
||||
}
|
||||
};
|
||||
case NEGATION:
|
||||
return new Blender() {
|
||||
@Override
|
||||
public int[] blend(int[] src, int[] dst) {
|
||||
return new int[] {
|
||||
255 - Math.abs(255 - dst[0] - src[0]),
|
||||
255 - Math.abs(255 - dst[1] - src[1]),
|
||||
255 - Math.abs(255 - dst[2] - src[2]),
|
||||
Math.min(255, src[3] + dst[3])
|
||||
};
|
||||
}
|
||||
};
|
||||
case OVERLAY:
|
||||
return new Blender() {
|
||||
@Override
|
||||
public int[] blend(int[] src, int[] dst) {
|
||||
return new int[] {
|
||||
dst[0] < 128 ? dst[0] * src[0] >> 7 :
|
||||
255 - ((255 - dst[0]) * (255 - src[0]) >> 7),
|
||||
dst[1] < 128 ? dst[1] * src[1] >> 7 :
|
||||
255 - ((255 - dst[1]) * (255 - src[1]) >> 7),
|
||||
dst[2] < 128 ? dst[2] * src[2] >> 7 :
|
||||
255 - ((255 - dst[2]) * (255 - src[2]) >> 7),
|
||||
Math.min(255, src[3] + dst[3])
|
||||
};
|
||||
}
|
||||
};
|
||||
case RED:
|
||||
return new Blender() {
|
||||
@Override
|
||||
public int[] blend(int[] src, int[] dst) {
|
||||
return new int[] {
|
||||
src[0],
|
||||
dst[1],
|
||||
dst[2],
|
||||
Math.min(255, src[3] + dst[3])
|
||||
};
|
||||
}
|
||||
};
|
||||
case REFLECT:
|
||||
return new Blender() {
|
||||
@Override
|
||||
public int[] blend(int[] src, int[] dst) {
|
||||
return new int[] {
|
||||
src[0] == 255 ? 255 : Math.min(255, dst[0] * dst[0] / (255 - src[0])),
|
||||
src[1] == 255 ? 255 : Math.min(255, dst[1] * dst[1] / (255 - src[1])),
|
||||
src[2] == 255 ? 255 : Math.min(255, dst[2] * dst[2] / (255 - src[2])),
|
||||
Math.min(255, src[3] + dst[3])
|
||||
};
|
||||
}
|
||||
};
|
||||
case SATURATION:
|
||||
return new Blender() {
|
||||
@Override
|
||||
public int[] blend(int[] src, int[] dst) {
|
||||
float[] srcHSL = new float[3];
|
||||
RGBtoHSL(src[0], src[1], src[2], srcHSL);
|
||||
float[] dstHSL = new float[3];
|
||||
RGBtoHSL(dst[0], dst[1], dst[2], dstHSL);
|
||||
|
||||
int[] result = new int[4];
|
||||
HSLtoRGB(dstHSL[0], srcHSL[1], dstHSL[2], result);
|
||||
result[3] = Math.min(255, src[3] + dst[3]);
|
||||
|
||||
return result;
|
||||
}
|
||||
};
|
||||
case SCREEN:
|
||||
return new Blender() {
|
||||
@Override
|
||||
public int[] blend(int[] src, int[] dst) {
|
||||
return new int[] {
|
||||
255 - ((255 - src[0]) * (255 - dst[0]) >> 8),
|
||||
255 - ((255 - src[1]) * (255 - dst[1]) >> 8),
|
||||
255 - ((255 - src[2]) * (255 - dst[2]) >> 8),
|
||||
Math.min(255, src[3] + dst[3])
|
||||
};
|
||||
}
|
||||
};
|
||||
case SOFT_BURN:
|
||||
return new Blender() {
|
||||
@Override
|
||||
public int[] blend(int[] src, int[] dst) {
|
||||
return new int[] {
|
||||
dst[0] + src[0] < 256 ?
|
||||
(dst[0] == 255 ? 255 :
|
||||
Math.min(255, (src[0] << 7) / (255 - dst[0]))) :
|
||||
Math.max(0, 255 - (((255 - dst[0]) << 7) / src[0])),
|
||||
dst[1] + src[1] < 256 ?
|
||||
(dst[1] == 255 ? 255 :
|
||||
Math.min(255, (src[1] << 7) / (255 - dst[1]))) :
|
||||
Math.max(0, 255 - (((255 - dst[1]) << 7) / src[1])),
|
||||
dst[2] + src[2] < 256 ?
|
||||
(dst[2] == 255 ? 255 :
|
||||
Math.min(255, (src[2] << 7) / (255 - dst[2]))) :
|
||||
Math.max(0, 255 - (((255 - dst[2]) << 7) / src[2])),
|
||||
Math.min(255, src[3] + dst[3])
|
||||
};
|
||||
}
|
||||
};
|
||||
case SOFT_DODGE:
|
||||
return new Blender() {
|
||||
@Override
|
||||
public int[] blend(int[] src, int[] dst) {
|
||||
return new int[] {
|
||||
dst[0] + src[0] < 256 ?
|
||||
(src[0] == 255 ? 255 :
|
||||
Math.min(255, (dst[0] << 7) / (255 - src[0]))) :
|
||||
Math.max(0, 255 - (((255 - src[0]) << 7) / dst[0])),
|
||||
dst[1] + src[1] < 256 ?
|
||||
(src[1] == 255 ? 255 :
|
||||
Math.min(255, (dst[1] << 7) / (255 - src[1]))) :
|
||||
Math.max(0, 255 - (((255 - src[1]) << 7) / dst[1])),
|
||||
dst[2] + src[2] < 256 ?
|
||||
(src[2] == 255 ? 255 :
|
||||
Math.min(255, (dst[2] << 7) / (255 - src[2]))) :
|
||||
Math.max(0, 255 - (((255 - src[2]) << 7) / dst[2])),
|
||||
Math.min(255, src[3] + dst[3])
|
||||
};
|
||||
}
|
||||
};
|
||||
case SOFT_LIGHT:
|
||||
break;
|
||||
case STAMP:
|
||||
return new Blender() {
|
||||
@Override
|
||||
public int[] blend(int[] src, int[] dst) {
|
||||
return new int[] {
|
||||
Math.max(0, Math.min(255, dst[0] + 2 * src[0] - 256)),
|
||||
Math.max(0, Math.min(255, dst[1] + 2 * src[1] - 256)),
|
||||
Math.max(0, Math.min(255, dst[2] + 2 * src[2] - 256)),
|
||||
Math.min(255, src[3] + dst[3])
|
||||
};
|
||||
}
|
||||
};
|
||||
case SUBTRACT:
|
||||
return new Blender() {
|
||||
@Override
|
||||
public int[] blend(int[] src, int[] dst) {
|
||||
return new int[] {
|
||||
Math.max(0, src[0] + dst[0] - 256),
|
||||
Math.max(0, src[1] + dst[1] - 256),
|
||||
Math.max(0, src[2] + dst[2] - 256),
|
||||
Math.min(255, src[3] + dst[3])
|
||||
};
|
||||
}
|
||||
};
|
||||
}
|
||||
throw new IllegalArgumentException("Blender not implement for " +
|
||||
composite.getMode().name());
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user