--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/java.desktop/share/classes/java/awt/image/DataBufferFloat.java Sun Aug 17 15:54:13 2014 +0100
@@ -0,0 +1,406 @@
+/*
+ * Copyright (c) 2000, 2014, 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 java.awt.image;
+
+import static sun.java2d.StateTrackable.State.*;
+
+/**
+ * This class extends <code>DataBuffer</code> and stores data internally
+ * in <code>float</code> form.
+ * <p>
+ * <a name="optimizations">
+ * Note that some implementations may function more efficiently
+ * if they can maintain control over how the data for an image is
+ * stored.
+ * For example, optimizations such as caching an image in video
+ * memory require that the implementation track all modifications
+ * to that data.
+ * Other implementations may operate better if they can store the
+ * data in locations other than a Java array.
+ * To maintain optimum compatibility with various optimizations
+ * it is best to avoid constructors and methods which expose the
+ * underlying storage as a Java array as noted below in the
+ * documentation for those methods.
+ * </a>
+ *
+ * @since 1.4
+ */
+
+public final class DataBufferFloat extends DataBuffer {
+
+ /** The array of data banks. */
+ float bankdata[][];
+
+ /** A reference to the default data bank. */
+ float data[];
+
+ /**
+ * Constructs a <code>float</code>-based <code>DataBuffer</code>
+ * with a specified size.
+ *
+ * @param size The number of elements in the DataBuffer.
+ */
+ public DataBufferFloat(int size) {
+ super(STABLE, TYPE_FLOAT, size);
+ data = new float[size];
+ bankdata = new float[1][];
+ bankdata[0] = data;
+ }
+
+ /**
+ * Constructs a <code>float</code>-based <code>DataBuffer</code>
+ * with a specified number of banks, all of which are of a
+ * specified size.
+ *
+ * @param size The number of elements in each bank of the
+ * <code>DataBuffer</code>.
+ * @param numBanks The number of banks in the
+ * <code>DataBuffer</code>.
+ */
+ public DataBufferFloat(int size, int numBanks) {
+ super(STABLE, TYPE_FLOAT, size, numBanks);
+ bankdata = new float[numBanks][];
+ for (int i= 0; i < numBanks; i++) {
+ bankdata[i] = new float[size];
+ }
+ data = bankdata[0];
+ }
+
+ /**
+ * Constructs a <code>float</code>-based <code>DataBuffer</code>
+ * with the specified data array. Only the first
+ * <code>size</code> elements are available for use by this
+ * <code>DataBuffer</code>. The array must be large enough to
+ * hold <code>size</code> elements.
+ * <p>
+ * Note that {@code DataBuffer} objects created by this constructor
+ * may be incompatible with <a href="#optimizations">performance
+ * optimizations</a> used by some implementations (such as caching
+ * an associated image in video memory).
+ *
+ * @param dataArray An array of <code>float</code>s to be used as the
+ * first and only bank of this <code>DataBuffer</code>.
+ * @param size The number of elements of the array to be used.
+ */
+ public DataBufferFloat(float dataArray[], int size) {
+ super(UNTRACKABLE, TYPE_FLOAT, size);
+ data = dataArray;
+ bankdata = new float[1][];
+ bankdata[0] = data;
+ }
+
+ /**
+ * Constructs a <code>float</code>-based <code>DataBuffer</code>
+ * with the specified data array. Only the elements between
+ * <code>offset</code> and <code>offset + size - 1</code> are
+ * available for use by this <code>DataBuffer</code>. The array
+ * must be large enough to hold <code>offset + size</code>
+ * elements.
+ * <p>
+ * Note that {@code DataBuffer} objects created by this constructor
+ * may be incompatible with <a href="#optimizations">performance
+ * optimizations</a> used by some implementations (such as caching
+ * an associated image in video memory).
+ *
+ * @param dataArray An array of <code>float</code>s to be used as the
+ * first and only bank of this <code>DataBuffer</code>.
+ * @param size The number of elements of the array to be used.
+ * @param offset The offset of the first element of the array
+ * that will be used.
+ */
+ public DataBufferFloat(float dataArray[], int size, int offset) {
+ super(UNTRACKABLE, TYPE_FLOAT, size, 1, offset);
+ data = dataArray;
+ bankdata = new float[1][];
+ bankdata[0] = data;
+ }
+
+ /**
+ * Constructs a <code>float</code>-based <code>DataBuffer</code>
+ * with the specified data arrays. Only the first
+ * <code>size</code> elements of each array are available for use
+ * by this <code>DataBuffer</code>. The number of banks will be
+ * equal to <code>dataArray.length</code>.
+ * <p>
+ * Note that {@code DataBuffer} objects created by this constructor
+ * may be incompatible with <a href="#optimizations">performance
+ * optimizations</a> used by some implementations (such as caching
+ * an associated image in video memory).
+ *
+ * @param dataArray An array of arrays of <code>float</code>s to be
+ * used as the banks of this <code>DataBuffer</code>.
+ * @param size The number of elements of each array to be used.
+ */
+ public DataBufferFloat(float dataArray[][], int size) {
+ super(UNTRACKABLE, TYPE_FLOAT, size, dataArray.length);
+ bankdata = dataArray.clone();
+ data = bankdata[0];
+ }
+
+ /**
+ * Constructs a <code>float</code>-based <code>DataBuffer</code>
+ * with the specified data arrays, size, and per-bank offsets.
+ * The number of banks is equal to <code>dataArray.length</code>.
+ * Each array must be at least as large as <code>size</code> plus the
+ * corresponding offset. There must be an entry in the offsets
+ * array for each data array.
+ * <p>
+ * Note that {@code DataBuffer} objects created by this constructor
+ * may be incompatible with <a href="#optimizations">performance
+ * optimizations</a> used by some implementations (such as caching
+ * an associated image in video memory).
+ *
+ * @param dataArray An array of arrays of <code>float</code>s to be
+ * used as the banks of this <code>DataBuffer</code>.
+ * @param size The number of elements of each array to be used.
+ * @param offsets An array of integer offsets, one for each bank.
+ */
+ public DataBufferFloat(float dataArray[][], int size, int offsets[]) {
+ super(UNTRACKABLE, TYPE_FLOAT, size,dataArray.length, offsets);
+ bankdata = dataArray.clone();
+ data = bankdata[0];
+ }
+
+ /**
+ * Returns the default (first) <code>float</code> data array.
+ * <p>
+ * Note that calling this method may cause this {@code DataBuffer}
+ * object to be incompatible with <a href="#optimizations">performance
+ * optimizations</a> used by some implementations (such as caching
+ * an associated image in video memory).
+ *
+ * @return the first float data array.
+ */
+ public float[] getData() {
+ theTrackable.setUntrackable();
+ return data;
+ }
+
+ /**
+ * Returns the data array for the specified bank.
+ * <p>
+ * Note that calling this method may cause this {@code DataBuffer}
+ * object to be incompatible with <a href="#optimizations">performance
+ * optimizations</a> used by some implementations (such as caching
+ * an associated image in video memory).
+ *
+ * @param bank the data array
+ * @return the data array specified by <code>bank</code>.
+ */
+ public float[] getData(int bank) {
+ theTrackable.setUntrackable();
+ return bankdata[bank];
+ }
+
+ /**
+ * Returns the data array for all banks.
+ * <p>
+ * Note that calling this method may cause this {@code DataBuffer}
+ * object to be incompatible with <a href="#optimizations">performance
+ * optimizations</a> used by some implementations (such as caching
+ * an associated image in video memory).
+ *
+ * @return all data arrays for this data buffer.
+ */
+ public float[][] getBankData() {
+ theTrackable.setUntrackable();
+ return bankdata.clone();
+ }
+
+ /**
+ * Returns the requested data array element from the first
+ * (default) bank as an <code>int</code>.
+ *
+ * @param i The desired data array element.
+ *
+ * @return The data entry as an <code>int</code>.
+ * @see #setElem(int, int)
+ * @see #setElem(int, int, int)
+ */
+ public int getElem(int i) {
+ return (int)(data[i+offset]);
+ }
+
+ /**
+ * Returns the requested data array element from the specified
+ * bank as an <code>int</code>.
+ *
+ * @param bank The bank number.
+ * @param i The desired data array element.
+ *
+ * @return The data entry as an <code>int</code>.
+ * @see #setElem(int, int)
+ * @see #setElem(int, int, int)
+ */
+ public int getElem(int bank, int i) {
+ return (int)(bankdata[bank][i+offsets[bank]]);
+ }
+
+ /**
+ * Sets the requested data array element in the first (default)
+ * bank to the given <code>int</code>.
+ *
+ * @param i The desired data array element.
+ * @param val The value to be set.
+ * @see #getElem(int)
+ * @see #getElem(int, int)
+ */
+ public void setElem(int i, int val) {
+ data[i+offset] = (float)val;
+ theTrackable.markDirty();
+ }
+
+ /**
+ * Sets the requested data array element in the specified bank to
+ * the given <code>int</code>.
+ *
+ * @param bank The bank number.
+ * @param i The desired data array element.
+ * @param val The value to be set.
+ * @see #getElem(int)
+ * @see #getElem(int, int)
+ */
+ public void setElem(int bank, int i, int val) {
+ bankdata[bank][i+offsets[bank]] = (float)val;
+ theTrackable.markDirty();
+ }
+
+ /**
+ * Returns the requested data array element from the first
+ * (default) bank as a <code>float</code>.
+ *
+ * @param i The desired data array element.
+ *
+ * @return The data entry as a <code>float</code>.
+ * @see #setElemFloat(int, float)
+ * @see #setElemFloat(int, int, float)
+ */
+ public float getElemFloat(int i) {
+ return data[i+offset];
+ }
+
+ /**
+ * Returns the requested data array element from the specified
+ * bank as a <code>float</code>.
+ *
+ * @param bank The bank number.
+ * @param i The desired data array element.
+ *
+ * @return The data entry as a <code>float</code>.
+ * @see #setElemFloat(int, float)
+ * @see #setElemFloat(int, int, float)
+ */
+ public float getElemFloat(int bank, int i) {
+ return bankdata[bank][i+offsets[bank]];
+ }
+
+ /**
+ * Sets the requested data array element in the first (default)
+ * bank to the given <code>float</code>.
+ *
+ * @param i The desired data array element.
+ * @param val The value to be set.
+ * @see #getElemFloat(int)
+ * @see #getElemFloat(int, int)
+ */
+ public void setElemFloat(int i, float val) {
+ data[i+offset] = val;
+ theTrackable.markDirty();
+ }
+
+ /**
+ * Sets the requested data array element in the specified bank to
+ * the given <code>float</code>.
+ *
+ * @param bank The bank number.
+ * @param i The desired data array element.
+ * @param val The value to be set.
+ * @see #getElemFloat(int)
+ * @see #getElemFloat(int, int)
+ */
+ public void setElemFloat(int bank, int i, float val) {
+ bankdata[bank][i+offsets[bank]] = val;
+ theTrackable.markDirty();
+ }
+
+ /**
+ * Returns the requested data array element from the first
+ * (default) bank as a <code>double</code>.
+ *
+ * @param i The desired data array element.
+ *
+ * @return The data entry as a <code>double</code>.
+ * @see #setElemDouble(int, double)
+ * @see #setElemDouble(int, int, double)
+ */
+ public double getElemDouble(int i) {
+ return (double)data[i+offset];
+ }
+
+ /**
+ * Returns the requested data array element from the specified
+ * bank as a <code>double</code>.
+ *
+ * @param bank The bank number.
+ * @param i The desired data array element.
+ *
+ * @return The data entry as a <code>double</code>.
+ * @see #setElemDouble(int, double)
+ * @see #setElemDouble(int, int, double)
+ */
+ public double getElemDouble(int bank, int i) {
+ return (double)bankdata[bank][i+offsets[bank]];
+ }
+
+ /**
+ * Sets the requested data array element in the first (default)
+ * bank to the given <code>double</code>.
+ *
+ * @param i The desired data array element.
+ * @param val The value to be set.
+ * @see #getElemDouble(int)
+ * @see #getElemDouble(int, int)
+ */
+ public void setElemDouble(int i, double val) {
+ data[i+offset] = (float)val;
+ theTrackable.markDirty();
+ }
+
+ /**
+ * Sets the requested data array element in the specified bank to
+ * the given <code>double</code>.
+ *
+ * @param bank The bank number.
+ * @param i The desired data array element.
+ * @param val The value to be set.
+ * @see #getElemDouble(int)
+ * @see #getElemDouble(int, int)
+ */
+ public void setElemDouble(int bank, int i, double val) {
+ bankdata[bank][i+offsets[bank]] = (float)val;
+ theTrackable.markDirty();
+ }
+}