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authorSven Gothel <[email protected]>2013-10-31 02:28:06 +0100
committerSven Gothel <[email protected]>2013-10-31 02:28:06 +0100
commitc87c9ca2d60322ba15b18f8bb20568d7442985c3 (patch)
tree2afa7b993dd5ceccd96d40b7413a019cba88ed6b /src
parent17706bd9dee80f5dd2fccdc19e7c246cb3881a98 (diff)
parentbca7777fa507a509f413c6dc8919bab641fe0d15 (diff)
Merge remote-tracking branch 'mraynsford/mark'
Diffstat (limited to 'src')
-rw-r--r--src/jogl/classes/com/jogamp/opengl/math/Binary16.java569
-rw-r--r--src/jogl/classes/com/jogamp/opengl/math/Binary32.java116
-rw-r--r--src/jogl/classes/com/jogamp/opengl/math/Binary64.java116
-rw-r--r--src/test/com/jogamp/opengl/test/junit/jogl/math/Binary16Test.java685
-rw-r--r--src/test/com/jogamp/opengl/test/junit/jogl/math/Binary32Test.java93
-rw-r--r--src/test/com/jogamp/opengl/test/junit/jogl/math/Binary64Test.java93
6 files changed, 1672 insertions, 0 deletions
diff --git a/src/jogl/classes/com/jogamp/opengl/math/Binary16.java b/src/jogl/classes/com/jogamp/opengl/math/Binary16.java
new file mode 100644
index 000000000..33add46c2
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/math/Binary16.java
@@ -0,0 +1,569 @@
+/**
+ * Copyright 2013 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this list of
+ * conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice, this list
+ * of conditions and the following disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+
+package com.jogamp.opengl.math;
+
+/**
+ * <p>
+ * Functions to convert values to/from the <code>binary16</code> format
+ * specified in <code>IEEE 754 2008</code>.
+ * </p>
+ */
+
+public final class Binary16
+{
+ /**
+ * The encoded form of negative infinity <code>-∞</code>.
+ */
+
+ public static final char NEGATIVE_INFINITY;
+
+ /**
+ * The encoded form of positive infinity <code>∞</code>.
+ */
+
+ public static final char POSITIVE_INFINITY;
+
+ /**
+ * The encoded form of positive zero <code>0</code>.
+ */
+
+ public static final char POSITIVE_ZERO;
+
+ /**
+ * The encoded form of negative zero <code>-0</code>.
+ */
+
+ public static final char NEGATIVE_ZERO;
+
+ /**
+ * The <i>bias</i> value used to offset the encoded exponent. A given
+ * exponent <code>e</code> is encoded as <code>{@link #BIAS} + e</code>.
+ */
+
+ public static final int BIAS;
+
+ static {
+ NEGATIVE_INFINITY = 0xFC00;
+ POSITIVE_INFINITY = 0x7C00;
+ POSITIVE_ZERO = 0x0000;
+ NEGATIVE_ZERO = 0x8000;
+ BIAS = 15;
+ }
+
+ private static final int MASK_SIGN;
+ private static final int MASK_EXPONENT;
+ private static final int MASK_SIGNIFICAND;
+
+ static {
+ MASK_SIGN = 0x8000;
+ MASK_EXPONENT = 0x7C00;
+ MASK_SIGNIFICAND = 0x03FF;
+ }
+
+ /**
+ * One possible not-a-number value.
+ */
+
+ public static char exampleNaN()
+ {
+ final int n =
+ Binary16.packSetExponentUnbiasedUnchecked(16)
+ | Binary16.packSetSignificandUnchecked(1);
+ final char c = (char) n;
+ return c;
+ }
+
+ /**
+ * Return <code>true</code> if the given packed <code>binary16</code> value
+ * is infinite.
+ */
+
+ public static boolean isInfinite(
+ final char k)
+ {
+ if (Binary16.unpackGetExponentUnbiased(k) == 16) {
+ if (Binary16.unpackGetSignificand(k) == 0) {
+ return true;
+ }
+ }
+ return false;
+ }
+
+ /**
+ * Return <code>true</code> if the given packed <code>binary16</code> value
+ * is not a number (<code>NaN</code>).
+ */
+
+ public static boolean isNaN(
+ final char k)
+ {
+ final int e = Binary16.unpackGetExponentUnbiased(k);
+ final int s = Binary16.unpackGetSignificand(k);
+ return (e == 16) && (s > 0);
+ }
+
+ /**
+ * <p>
+ * Convert a double precision floating point value to a packed
+ * <code>binary16</code> value.
+ * </p>
+ * <p>
+ * For the following specific cases, the function returns:
+ * </p>
+ * <ul>
+ * <li><code>NaN</code> iff <code>isNaN(k)</code></li>
+ * <li>{@link #POSITIVE_INFINITY} iff
+ * <code>k == {@link Double#POSITIVE_INFINITY}</code></li>
+ * <li>{@link #NEGATIVE_INFINITY} iff
+ * <code>k == {@link Double#NEGATIVE_INFINITY}</code></li>
+ * <li>{@link #NEGATIVE_ZERO} iff <code>k == -0.0</code></li>
+ * <li>{@link #POSITIVE_ZERO} iff <code>k == 0.0</code></li>
+ * </ul>
+ * <p>
+ * Otherwise, the <code>binary16</code> value that most closely represents
+ * <code>k</code> is returned. This may obviously be an infinite value as
+ * the interval of double precision values is far larger than that of the
+ * <code>binary16</code> type.
+ * </p>
+ *
+ * @see #unpackDouble(char)
+ */
+
+ public static char packDouble(
+ final double k)
+ {
+ if (Double.isNaN(k)) {
+ return Binary16.exampleNaN();
+ }
+ if (k == Double.POSITIVE_INFINITY) {
+ return Binary16.POSITIVE_INFINITY;
+ }
+ if (k == Double.NEGATIVE_INFINITY) {
+ return Binary16.NEGATIVE_INFINITY;
+ }
+ if (Double.doubleToLongBits(k) == Binary64.NEGATIVE_ZERO_BITS) {
+ return Binary16.NEGATIVE_ZERO;
+ }
+ if (k == 0.0) {
+ return Binary16.POSITIVE_ZERO;
+ }
+
+ final long de = Binary64.unpackGetExponentUnbiased(k);
+ final long ds = Binary64.unpackGetSign(k);
+ final long dn = Binary64.unpackGetSignificand(k);
+ final char rsr = Binary16.packSetSignUnchecked((int) ds);
+
+ /**
+ * Extract the 5 least-significant bits of the exponent.
+ */
+
+ final int rem = (int) (de & 0x001F);
+ final char rer = Binary16.packSetExponentUnbiasedUnchecked(rem);
+
+ /**
+ * Extract the 10 most-significant bits of the significand.
+ */
+
+ final long rnm = dn & 0xFFC0000000000L;
+ final long rns = rnm >> 42;
+ final char rnr = Binary16.packSetSignificandUnchecked((int) rns);
+
+ /**
+ * Combine the results.
+ */
+
+ return (char) (rsr | rer | rnr);
+ }
+
+ /**
+ * <p>
+ * Convert a single precision floating point value to a packed
+ * <code>binary16</code> value.
+ * </p>
+ * <p>
+ * For the following specific cases, the function returns:
+ * </p>
+ * <ul>
+ * <li><code>NaN</code> iff <code>isNaN(k)</code></li>
+ * <li>{@link #POSITIVE_INFINITY} iff
+ * <code>k == {@link Float#POSITIVE_INFINITY}</code></li>
+ * <li>{@link #NEGATIVE_INFINITY} iff
+ * <code>k == {@link Float#NEGATIVE_INFINITY}</code></li>
+ * <li>{@link #NEGATIVE_ZERO} iff <code>k == -0.0</code></li>
+ * <li>{@link #POSITIVE_ZERO} iff <code>k == 0.0</code></li>
+ * </ul>
+ * <p>
+ * Otherwise, the <code>binary16</code> value that most closely represents
+ * <code>k</code> is returned. This may obviously be an infinite value as
+ * the interval of single precision values is far larger than that of the
+ * <code>binary16</code> type.
+ * </p>
+ *
+ * @see #unpackFloat(char)
+ */
+
+ public static char packFloat(
+ final float k)
+ {
+ if (Float.isNaN(k)) {
+ return Binary16.exampleNaN();
+ }
+ if (k == Float.POSITIVE_INFINITY) {
+ return Binary16.POSITIVE_INFINITY;
+ }
+ if (k == Float.NEGATIVE_INFINITY) {
+ return Binary16.NEGATIVE_INFINITY;
+ }
+ if (Float.floatToIntBits(k) == Binary32.NEGATIVE_ZERO_BITS) {
+ return Binary16.NEGATIVE_ZERO;
+ }
+ if (k == 0.0) {
+ return Binary16.POSITIVE_ZERO;
+ }
+
+ final long de = Binary32.unpackGetExponentUnbiased(k);
+ final long ds = Binary32.unpackGetSign(k);
+ final long dn = Binary32.unpackGetSignificand(k);
+ final char rsr = Binary16.packSetSignUnchecked((int) ds);
+
+ /**
+ * Extract the 5 least-significant bits of the exponent.
+ */
+
+ final int rem = (int) (de & 0x001F);
+ final char rer = Binary16.packSetExponentUnbiasedUnchecked(rem);
+
+ /**
+ * Extract the 10 most-significant bits of the significand.
+ */
+
+ final long rnm = dn & 0x7FE000L;
+ final long rns = rnm >> 13;
+ final char rnr = Binary16.packSetSignificandUnchecked((int) rns);
+
+ /**
+ * Combine the results.
+ */
+
+ return (char) (rsr | rer | rnr);
+ }
+
+ /**
+ * <p>
+ * Encode the unbiased exponent <code>e</code>. Values should be in the
+ * range <code>[-15, 16]</code> - values outside of this range will be
+ * truncated.
+ * </p>
+ *
+ * @see #unpackGetExponentUnbiased(char)
+ */
+
+ public static char packSetExponentUnbiasedUnchecked(
+ final int e)
+ {
+ final int eb = e + Binary16.BIAS;
+ final int es = eb << 10;
+ final int em = es & Binary16.MASK_EXPONENT;
+ return (char) em;
+ }
+
+ /**
+ * <p>
+ * Encode the significand <code>s</code>. Values should be in the range
+ * <code>[0, 1023]</code>. Values outside of this range will be truncated.
+ * </p>
+ *
+ * @see #unpackGetSignificand(char)
+ */
+
+ public static char packSetSignificandUnchecked(
+ final int s)
+ {
+ final int sm = s & Binary16.MASK_SIGNIFICAND;
+ return (char) sm;
+ }
+
+ /**
+ * <p>
+ * Encode the sign bit <code>s</code>. Values should be in the range
+ * <code>[0, 1]</code>, with <code>0</code> ironically denoting a positive
+ * value. Values outside of this range will be truncated.
+ * </p>
+ *
+ * @see #unpackGetSign(char)
+ */
+
+ public static char packSetSignUnchecked(
+ final int s)
+ {
+ final int ss = s << 15;
+ final int sm = ss & Binary16.MASK_SIGN;
+ return (char) sm;
+ }
+
+ /**
+ * Show the given raw packed <code>binary16</code> value as a string of
+ * binary digits.
+ */
+
+ public static String toRawBinaryString(
+ final char k)
+ {
+ final StringBuilder b = new StringBuilder();
+ int z = k;
+ for (int i = 0; i < 16; ++i) {
+ if ((z & 1) == 1) {
+ b.insert(0, "1");
+ } else {
+ b.insert(0, "0");
+ }
+ z >>= 1;
+ }
+ return b.toString();
+ }
+
+ /**
+ * <p>
+ * Convert a packed <code>binary16</code> value <code>k</code> to a
+ * double-precision floating point value.
+ * </p>
+ * <p>
+ * The function returns:
+ * </p>
+ * <ul>
+ * <li><code>NaN</code> iff <code>isNaN(k)</code></li>
+ * <li>{@link Double#POSITIVE_INFINITY} iff
+ * <code>k == {@link #POSITIVE_INFINITY}</code></li>
+ * <li>{@link Double#NEGATIVE_INFINITY} iff
+ * <code>k == {@link #NEGATIVE_INFINITY}</code></li>
+ * <li><code>-0.0</code> iff <code>k == {@link #NEGATIVE_ZERO}</code></li>
+ * <li><code>0.0</code> iff <code>k == {@link #POSITIVE_ZERO}</code></li>
+ * <li><code>(-1.0 * n) * (2 ^ e) * 1.s</code>, for the decoded sign
+ * <code>n</code> of <code>k</code>, the decoded exponent <code>e</code> of
+ * <code>k</code>, and the decoded significand <code>s</code> of
+ * <code>k</code>.</li>
+ * </ul>
+ *
+ * @see #packDouble(double)
+ */
+
+ public static double unpackDouble(
+ final char k)
+ {
+ if (Binary16.isNaN(k)) {
+ return Double.NaN;
+ }
+ if (k == Binary16.POSITIVE_INFINITY) {
+ return Double.POSITIVE_INFINITY;
+ }
+ if (k == Binary16.NEGATIVE_INFINITY) {
+ return Double.NEGATIVE_INFINITY;
+ }
+ if (k == Binary16.NEGATIVE_ZERO) {
+ return -0.0;
+ }
+ if (k == Binary16.POSITIVE_ZERO) {
+ return 0.0;
+ }
+
+ final long e = Binary16.unpackGetExponentUnbiased(k);
+ final long s = Binary16.unpackGetSign(k);
+ final long n = Binary16.unpackGetSignificand(k);
+
+ /**
+ * Shift the sign bit to the position at which it will appear in the
+ * resulting value.
+ */
+
+ final long rsr = s << 63;
+
+ /**
+ * 1. Bias the exponent.
+ *
+ * 2. Shift the result left to the position at which it will appear in the
+ * resulting value.
+ */
+
+ final long reb = (e + Binary64.BIAS);
+ final long rer = reb << 52;
+
+ /**
+ * Shift the significand left to the position at which it will appear in
+ * the resulting value.
+ */
+
+ final long rnr = n << 42;
+ return Double.longBitsToDouble(rsr | rer | rnr);
+ }
+
+ /**
+ * <p>
+ * Convert a packed <code>binary16</code> value <code>k</code> to a
+ * single-precision floating point value.
+ * </p>
+ * <p>
+ * The function returns:
+ * </p>
+ * <ul>
+ * <li><code>NaN</code> iff <code>isNaN(k)</code></li>
+ * <li>{@link Float#POSITIVE_INFINITY} iff
+ * <code>k == {@link #POSITIVE_INFINITY}</code></li>
+ * <li>{@link Float#NEGATIVE_INFINITY} iff
+ * <code>k == {@link #NEGATIVE_INFINITY}</code></li>
+ * <li><code>-0.0</code> iff <code>k == {@link #NEGATIVE_ZERO}</code></li>
+ * <li><code>0.0</code> iff <code>k == {@link #POSITIVE_ZERO}</code></li>
+ * <li><code>(-1.0 * n) * (2 ^ e) * 1.s</code>, for the decoded sign
+ * <code>n</code> of <code>k</code>, the decoded exponent <code>e</code> of
+ * <code>k</code>, and the decoded significand <code>s</code> of
+ * <code>k</code>.</li>
+ * </ul>
+ *
+ * @see #packFloat(float)
+ */
+
+ public static float unpackFloat(
+ final char k)
+ {
+ if (Binary16.isNaN(k)) {
+ return Float.NaN;
+ }
+ if (k == Binary16.POSITIVE_INFINITY) {
+ return Float.POSITIVE_INFINITY;
+ }
+ if (k == Binary16.NEGATIVE_INFINITY) {
+ return Float.NEGATIVE_INFINITY;
+ }
+ if (k == Binary16.NEGATIVE_ZERO) {
+ return -0.0f;
+ }
+ if (k == Binary16.POSITIVE_ZERO) {
+ return 0.0f;
+ }
+
+ final int e = Binary16.unpackGetExponentUnbiased(k);
+ final int s = Binary16.unpackGetSign(k);
+ final int n = Binary16.unpackGetSignificand(k);
+
+ /**
+ * Shift the sign bit to the position at which it will appear in the
+ * resulting value.
+ */
+
+ final int rsr = s << 31;
+
+ /**
+ * 1. Bias the exponent.
+ *
+ * 2. Shift the result left to the position at which it will appear in the
+ * resulting value.
+ */
+
+ final int reb = (e + Binary32.BIAS);
+ final int rer = reb << 23;
+
+ /**
+ * Shift the significand left to the position at which it will appear in
+ * the resulting value.
+ */
+
+ final int rnr = n << 13;
+ return Float.intBitsToFloat(rsr | rer | rnr);
+ }
+
+ /**
+ * <p>
+ * Extract and unbias the exponent of the given packed <code>binary16</code>
+ * value.
+ * </p>
+ * <p>
+ * The exponent is encoded <i>biased</i> as a number in the range
+ * <code>[0, 31]</code>, with <code>0</code> indicating that the number is
+ * <i>subnormal</i> and <code>[1, 30]</code> denoting the actual exponent
+ * plus {@link #BIAS}. Infinite and <code>NaN</code> values always have an
+ * exponent of <code>31</code>.
+ * </p>
+ * <p>
+ * This function will therefore return:
+ * </p>
+ * <ul>
+ * <li>
+ * <code>0 - {@link #BIAS} = -15</code> iff the input is a <i>subnormal</i>
+ * number.</li>
+ * <li>An integer in the range
+ * <code>[1 - {@link #BIAS}, 30 - {@link #BIAS}] = [-14, 15]</code> iff the
+ * input is a <i>normal</i> number.</li>
+ * <li>
+ * <code>16</code> iff the input is {@link #POSITIVE_INFINITY},
+ * {@link #NEGATIVE_INFINITY}, or <code>NaN</code>.</li>
+ * </ul>
+ *
+ * @see #packSetExponentUnbiasedUnchecked(int)
+ */
+
+ public static int unpackGetExponentUnbiased(
+ final char k)
+ {
+ final int em = k & Binary16.MASK_EXPONENT;
+ final int es = em >> 10;
+ return es - Binary16.BIAS;
+ }
+
+ /**
+ * Retrieve the sign bit of the given packed <code>binary16</code> value, as
+ * an integer in the range <code>[0, 1]</code>.
+ *
+ * @see Binary16#packSetSignUnchecked(int)
+ */
+
+ public static int unpackGetSign(
+ final char k)
+ {
+ return (k & Binary16.MASK_SIGN) >> 15;
+ }
+
+ /**
+ * <p>
+ * Return the significand of the given packed <code>binary16</code> value as
+ * an integer in the range <code>[0, 1023]</code>.
+ * </p>
+ *
+ * @see Binary16#packSetSignificandUnchecked(int)
+ */
+
+ public static int unpackGetSignificand(
+ final char k)
+ {
+ return k & Binary16.MASK_SIGNIFICAND;
+ }
+
+ private Binary16()
+ {
+ throw new AssertionError("Unreachable code, report this bug!");
+ }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/math/Binary32.java b/src/jogl/classes/com/jogamp/opengl/math/Binary32.java
new file mode 100644
index 000000000..d98815d9f
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/math/Binary32.java
@@ -0,0 +1,116 @@
+/**
+ * Copyright 2013 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this list of
+ * conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice, this list
+ * of conditions and the following disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+
+package com.jogamp.opengl.math;
+
+/**
+ * Functions for interrogating <code>binary32</code> (float) values.
+ */
+
+public final class Binary32
+{
+ static final int NEGATIVE_ZERO_BITS;
+ static final int MASK_SIGN;
+ static final int MASK_EXPONENT;
+ static final int MASK_SIGNIFICAND;
+ static final int BIAS;
+
+ static {
+ NEGATIVE_ZERO_BITS = 0x80000000;
+ MASK_SIGN = 0x80000000;
+ MASK_EXPONENT = 0x7ff00000;
+ MASK_SIGNIFICAND = 0x7fffff;
+ BIAS = 127;
+ }
+
+ /**
+ * <p>
+ * Extract and unbias the exponent of the given packed <code>float</code>
+ * value.
+ * </p>
+ * <p>
+ * The exponent is encoded <i>biased</i> as a number in the range
+ * <code>[0, 255]</code>, with <code>0</code> indicating that the number is
+ * <i>subnormal</i> and <code>[1, 254]</code> denoting the actual exponent
+ * plus {@link #BIAS}. Infinite and <code>NaN</code> values always have a
+ * biased exponent of <code>255</code>.
+ * </p>
+ * <p>
+ * This function will therefore return:
+ * </p>
+ * <ul>
+ * <li>
+ * <code>0 - {@link #BIAS} = -127</code> iff the input is a <i>subnormal</i>
+ * number.</li>
+ * <li>An integer in the range
+ * <code>[1 - {@link #BIAS}, 254 - {@link #BIAS}] = [-126, 127]</code> iff
+ * the input is a <i>normal</i> number.</li>
+ * <li>
+ * <code>255 - {@link #BIAS} = 128</code> iff the input is
+ * {@link #POSITIVE_INFINITY}, {@link #NEGATIVE_INFINITY}, or
+ * <code>NaN</code>.</li>
+ * </ul>
+ *
+ * @see #packSetExponentUnbiasedUnchecked(int)
+ */
+
+ public static int unpackGetExponentUnbiased(
+ final float d)
+ {
+ final int b = Float.floatToRawIntBits(d);
+ final int em = b & Binary32.MASK_EXPONENT;
+ final int es = em >> 23;
+ return es - Binary32.BIAS;
+ }
+
+ /**
+ * <p>
+ * Return the sign of the given float value.
+ * </p>
+ */
+
+ public static int unpackGetSign(
+ final float d)
+ {
+ final int b = Float.floatToRawIntBits(d);
+ return ((b & Binary32.MASK_SIGN) >> 31) & 1;
+ }
+
+ /**
+ * <p>
+ * Return the significand of the given float value.
+ * </p>
+ */
+
+ public static int unpackGetSignificand(
+ final float d)
+ {
+ final int b = Float.floatToRawIntBits(d);
+ return b & Binary32.MASK_SIGNIFICAND;
+ }
+}
diff --git a/src/jogl/classes/com/jogamp/opengl/math/Binary64.java b/src/jogl/classes/com/jogamp/opengl/math/Binary64.java
new file mode 100644
index 000000000..5efad433a
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/math/Binary64.java
@@ -0,0 +1,116 @@
+/**
+ * Copyright 2013 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this list of
+ * conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice, this list
+ * of conditions and the following disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+
+package com.jogamp.opengl.math;
+
+/**
+ * Functions for interrogating <code>binary64</code> (double) values.
+ */
+
+public final class Binary64
+{
+ static final long NEGATIVE_ZERO_BITS;
+ static final long MASK_SIGN;
+ static final long MASK_EXPONENT;
+ static final long MASK_SIGNIFICAND;
+ static final long BIAS;
+
+ static {
+ NEGATIVE_ZERO_BITS = 0x8000000000000000L;
+ MASK_SIGN = 0x8000000000000000L;
+ MASK_EXPONENT = 0x7ff0000000000000L;
+ MASK_SIGNIFICAND = 0x000fffffffffffffL;
+ BIAS = 1023;
+ }
+
+ /**
+ * <p>
+ * Extract and unbias the exponent of the given packed <code>double</code>
+ * value.
+ * </p>
+ * <p>
+ * The exponent is encoded <i>biased</i> as a number in the range
+ * <code>[0, 2047]</code>, with <code>0</code> indicating that the number is
+ * <i>subnormal</i> and <code>[1, 2046]</code> denoting the actual exponent
+ * plus {@link #BIAS}. Infinite and <code>NaN</code> values always have a
+ * biased exponent of <code>2047</code>.
+ * </p>
+ * <p>
+ * This function will therefore return:
+ * </p>
+ * <ul>
+ * <li>
+ * <code>0 - {@link #BIAS} = -1023</code> iff the input is a
+ * <i>subnormal</i> number.</li>
+ * <li>An integer in the range
+ * <code>[1 - {@link #BIAS}, 2046 - {@link #BIAS}] = [-1022, 1023]</code>
+ * iff the input is a <i>normal</i> number.</li>
+ * <li>
+ * <code>2047 - {@link #BIAS} = 1024</code> iff the input is
+ * {@link #POSITIVE_INFINITY}, {@link #NEGATIVE_INFINITY}, or
+ * <code>NaN</code>.</li>
+ * </ul>
+ *
+ * @see #packSetExponentUnbiasedUnchecked(int)
+ */
+
+ public static long unpackGetExponentUnbiased(
+ final double d)
+ {
+ final long b = Double.doubleToRawLongBits(d);
+ final long em = b & Binary64.MASK_EXPONENT;
+ final long es = em >> 52;
+ return es - Binary64.BIAS;
+ }
+
+ /**
+ * <p>
+ * Return the significand of the given double value.
+ * </p>
+ */
+
+ public static long unpackGetSignificand(
+ final double d)
+ {
+ final long b = Double.doubleToRawLongBits(d);
+ return b & Binary64.MASK_SIGNIFICAND;
+ }
+
+ /**
+ * <p>
+ * Return the sign of the given double value.
+ * </p>
+ */
+
+ public static long unpackGetSign(
+ final double d)
+ {
+ final long b = Double.doubleToRawLongBits(d);
+ return ((b & Binary64.MASK_SIGN) >> 63) & 1;
+ }
+}
diff --git a/src/test/com/jogamp/opengl/test/junit/jogl/math/Binary16Test.java b/src/test/com/jogamp/opengl/test/junit/jogl/math/Binary16Test.java
new file mode 100644
index 000000000..d9e84eeab
--- /dev/null
+++ b/src/test/com/jogamp/opengl/test/junit/jogl/math/Binary16Test.java
@@ -0,0 +1,685 @@
+/**
+ * Copyright 2013 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this list of
+ * conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice, this list
+ * of conditions and the following disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+
+package com.jogamp.opengl.test.junit.jogl.math;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+import com.jogamp.opengl.math.Binary16;
+
+public final class Binary16Test
+{
+ /**
+ * Exponents in the range [-15, 16] are encoded and decoded correctly.
+ */
+
+ @SuppressWarnings("static-method") @Test public void testExponentIdentity()
+ {
+ System.out.println("-- Exponent identities");
+ for (int e = -15; e <= 16; ++e) {
+ final char p = Binary16.packSetExponentUnbiasedUnchecked(e);
+ final int u = Binary16.unpackGetExponentUnbiased(p);
+ System.out.println("e: " + e);
+ System.out.println("p: " + Integer.toHexString(p));
+ System.out.println("u: " + u);
+ Assert.assertEquals(e, u);
+ }
+ }
+
+ /**
+ * Infinities are infinite.
+ */
+
+ @SuppressWarnings("static-method") @Test public void testInfinite()
+ {
+ Assert.assertTrue(Binary16.isInfinite(Binary16.POSITIVE_INFINITY));
+ Assert.assertTrue(Binary16.isInfinite(Binary16.NEGATIVE_INFINITY));
+ Assert.assertFalse(Binary16.isInfinite(Binary16.exampleNaN()));
+
+ for (int i = 0; i <= 65535; ++i) {
+ Assert.assertFalse(Binary16.isInfinite(Binary16.packDouble(i)));
+ }
+ }
+
+ /**
+ * The unencoded exponent of infinity is 16.
+ */
+
+ @SuppressWarnings("static-method") @Test public void testInfinityExponent()
+ {
+ Assert.assertEquals(
+ 16,
+ Binary16.unpackGetExponentUnbiased(Binary16.POSITIVE_INFINITY));
+ }
+
+ /**
+ * The unencoded exponent of infinity is 16.
+ */
+
+ @SuppressWarnings("static-method") @Test public
+ void
+ testInfinityNegativeExponent()
+ {
+ Assert.assertEquals(
+ 16,
+ Binary16.unpackGetExponentUnbiased(Binary16.NEGATIVE_INFINITY));
+ }
+
+ /**
+ * The sign of negative infinity is 1.
+ */
+
+ @SuppressWarnings("static-method") @Test public
+ void
+ testInfinityNegativeSign()
+ {
+ Assert
+ .assertEquals(1, Binary16.unpackGetSign(Binary16.NEGATIVE_INFINITY));
+ }
+
+ /**
+ * The significand of infinity is 0.
+ */
+
+ @SuppressWarnings("static-method") @Test public
+ void
+ testInfinityNegativeSignificand()
+ {
+ Assert.assertEquals(
+ 0,
+ Binary16.unpackGetSignificand(Binary16.NEGATIVE_INFINITY));
+ }
+
+ /**
+ * The sign of positive infinity is 0.
+ */
+
+ @SuppressWarnings("static-method") @Test public void testInfinitySign()
+ {
+ Assert
+ .assertEquals(0, Binary16.unpackGetSign(Binary16.POSITIVE_INFINITY));
+ }
+
+ /**
+ * The significand of infinity is 0.
+ */
+
+ @SuppressWarnings("static-method") @Test public
+ void
+ testInfinitySignificand()
+ {
+ Assert.assertEquals(
+ 0,
+ Binary16.unpackGetSignificand(Binary16.POSITIVE_INFINITY));
+ }
+
+ /**
+ * NaN is NaN.
+ */
+
+ @SuppressWarnings("static-method") @Test public void testNaN()
+ {
+ final int n =
+ Binary16.packSetExponentUnbiasedUnchecked(16)
+ | Binary16.packSetSignificandUnchecked(1);
+ final char c = (char) n;
+ Assert.assertEquals(16, Binary16.unpackGetExponentUnbiased(c));
+ Assert.assertEquals(1, Binary16.unpackGetSignificand(c));
+ Assert.assertEquals(
+ 16,
+ Binary16.unpackGetExponentUnbiased(Binary16.exampleNaN()));
+ Assert.assertEquals(
+ 1,
+ Binary16.unpackGetSignificand(Binary16.exampleNaN()));
+ Assert.assertTrue(Binary16.isNaN(c));
+ Assert.assertTrue(Binary16.isNaN(Binary16.exampleNaN()));
+ }
+
+ /**
+ * Packing NaN results in NaN.
+ */
+
+ @SuppressWarnings("static-method") @Test public void testPackDoubleNaN()
+ {
+ final double k = Double.NaN;
+ final char r = Binary16.packDouble(k);
+ Assert.assertTrue(Binary16.isNaN(r));
+ }
+
+ /**
+ * Packing negative infinity results in negative infinity.
+ */
+
+ @SuppressWarnings("static-method") @Test public
+ void
+ testPackDoubleNegativeInfinity()
+ {
+ Assert.assertTrue(Binary16.NEGATIVE_INFINITY == Binary16
+ .packDouble(Double.NEGATIVE_INFINITY));
+ }
+
+ /**
+ * Packing negative zero results in negative zero.
+ */
+
+ @SuppressWarnings("static-method") @Test public
+ void
+ testPackDoubleNegativeZero()
+ {
+ Assert.assertTrue(Binary16.NEGATIVE_ZERO == Binary16.packDouble(-0.0));
+ }
+
+ /**
+ * Packing positive infinity results in positive infinity.
+ */
+
+ @SuppressWarnings("static-method") @Test public
+ void
+ testPackDoublePositiveInfinity()
+ {
+ Assert.assertTrue(Binary16.POSITIVE_INFINITY == Binary16
+ .packDouble(Double.POSITIVE_INFINITY));
+ }
+
+ /**
+ * Packing positive zero results in positive zero.
+ */
+
+ @SuppressWarnings("static-method") @Test public
+ void
+ testPackDoublePositiveZero()
+ {
+ Assert.assertTrue(Binary16.POSITIVE_ZERO == Binary16.packDouble(0.0));
+ }
+
+ /**
+ * Integers in the range [0, 65520] should be representable.
+ */
+
+ @SuppressWarnings({ "static-method", "boxing" }) @Test public
+ void
+ testPackDoubleUnpackFloat()
+ {
+ for (int i = 0; i <= 65536; ++i) {
+ final double in = i;
+ final char packed = Binary16.packDouble(in);
+ final float r = Binary16.unpackFloat(packed);
+ System.out.println(String.format(
+ "packed: 0x%04x 0b%s in: %f unpacked: %f",
+ (int) packed,
+ Binary16.toRawBinaryString(packed),
+ in,
+ r));
+
+ if (i <= 2048) {
+ Assert.assertEquals(in, r, 0.0);
+ }
+ if ((i > 2048) && (i <= 4096)) {
+ Assert.assertTrue((r % 2) == 0);
+ }
+ if ((i > 4096) && (i <= 8192)) {
+ Assert.assertTrue((r % 4) == 0);
+ }
+ if ((i > 8192) && (i <= 16384)) {
+ Assert.assertTrue((r % 8) == 0);
+ }
+ if ((i > 16384) && (i <= 32768)) {
+ Assert.assertTrue((r % 16) == 0);
+ }
+ if ((i > 32768) && (i < 65536)) {
+ Assert.assertTrue((r % 32) == 0);
+ }
+ if (i == 65536) {
+ Assert.assertTrue(Double.isInfinite(r));
+ }
+ }
+ }
+
+ /**
+ * Integers in the range [0, 65520] should be representable.
+ */
+
+ @SuppressWarnings({ "static-method", "boxing" }) @Test public
+ void
+ testPackFloatDoubleEquivalent()
+ {
+ for (int i = 0; i <= 65536; ++i) {
+ final float f_in = i;
+ final double d_in = i;
+ final char pf = Binary16.packFloat(f_in);
+ final char pd = Binary16.packDouble(d_in);
+
+ System.out.println("i: " + i);
+ System.out.println(String.format(
+ "pack_f: 0x%04x 0b%s",
+ (int) pf,
+ Binary16.toRawBinaryString(pf)));
+ System.out.println(String.format(
+ "pack_d: 0x%04x 0b%s",
+ (int) pd,
+ Binary16.toRawBinaryString(pd)));
+
+ Assert.assertEquals(pf, pd);
+ }
+ }
+
+ /**
+ * Packing NaN results in NaN.
+ */
+
+ @SuppressWarnings("static-method") @Test public void testPackFloatNaN()
+ {
+ final float k = Float.NaN;
+ final char r = Binary16.packFloat(k);
+ Assert.assertTrue(Binary16.isNaN(r));
+ }
+
+ /**
+ * Packing negative infinity results in negative infinity.
+ */
+
+ @SuppressWarnings("static-method") @Test public
+ void
+ testPackFloatNegativeInfinity()
+ {
+ Assert.assertTrue(Binary16.NEGATIVE_INFINITY == Binary16
+ .packFloat(Float.NEGATIVE_INFINITY));
+ }
+
+ /**
+ * Packing negative zero results in negative zero.
+ */
+
+ @SuppressWarnings("static-method") @Test public
+ void
+ testPackFloatNegativeZero()
+ {
+ Assert.assertTrue(Binary16.NEGATIVE_ZERO == Binary16.packFloat(-0.0f));
+ }
+
+ /**
+ * Packing positive infinity results in positive infinity.
+ */
+
+ @SuppressWarnings("static-method") @Test public
+ void
+ testPackFloatPositiveInfinity()
+ {
+ Assert.assertTrue(Binary16.POSITIVE_INFINITY == Binary16
+ .packFloat(Float.POSITIVE_INFINITY));
+ }
+
+ /**
+ * Packing positive zero results in positive zero.
+ */
+
+ @SuppressWarnings("static-method") @Test public
+ void
+ testPackFloatPositiveZero()
+ {
+ Assert.assertTrue(Binary16.POSITIVE_ZERO == Binary16.packFloat(0.0f));
+ }
+
+ /**
+ * Integers in the range [0, 65520] should be representable.
+ */
+
+ @SuppressWarnings({ "static-method", "boxing" }) @Test public
+ void
+ testPackFloatUnpackDouble()
+ {
+ for (int i = 0; i <= 65536; ++i) {
+ final float in = i;
+ final char packed = Binary16.packFloat(in);
+ final double r = Binary16.unpackDouble(packed);
+ System.out.println(String.format(
+ "packed: 0x%04x 0b%s in: %f unpacked: %f",
+ (int) packed,
+ Binary16.toRawBinaryString(packed),
+ in,
+ r));
+
+ if (i <= 2048) {
+ Assert.assertEquals(in, r, 0.0);
+ }
+ if ((i > 2048) && (i <= 4096)) {
+ Assert.assertTrue((r % 2) == 0);
+ }
+ if ((i > 4096) && (i <= 8192)) {
+ Assert.assertTrue((r % 4) == 0);
+ }
+ if ((i > 8192) && (i <= 16384)) {
+ Assert.assertTrue((r % 8) == 0);
+ }
+ if ((i > 16384) && (i <= 32768)) {
+ Assert.assertTrue((r % 16) == 0);
+ }
+ if ((i > 32768) && (i < 65536)) {
+ Assert.assertTrue((r % 32) == 0);
+ }
+ if (i == 65536) {
+ Assert.assertTrue(Double.isInfinite(r));
+ }
+ }
+ }
+
+ /**
+ * Integers in the range [0, 65520] should be representable.
+ */
+
+ @SuppressWarnings({ "static-method", "boxing" }) @Test public
+ void
+ testPackUnpackDouble()
+ {
+ for (int i = 0; i <= 65536; ++i) {
+ final double in = i;
+ final char packed = Binary16.packDouble(in);
+ final double r = Binary16.unpackDouble(packed);
+ System.out.println(String.format(
+ "packed: 0x%04x 0b%s in: %f unpacked: %f",
+ (int) packed,
+ Binary16.toRawBinaryString(packed),
+ in,
+ r));
+
+ if (i <= 2048) {
+ Assert.assertEquals(in, r, 0.0);
+ }
+ if ((i > 2048) && (i <= 4096)) {
+ Assert.assertTrue((r % 2) == 0);
+ }
+ if ((i > 4096) && (i <= 8192)) {
+ Assert.assertTrue((r % 4) == 0);
+ }
+ if ((i > 8192) && (i <= 16384)) {
+ Assert.assertTrue((r % 8) == 0);
+ }
+ if ((i > 16384) && (i <= 32768)) {
+ Assert.assertTrue((r % 16) == 0);
+ }
+ if ((i > 32768) && (i < 65536)) {
+ Assert.assertTrue((r % 32) == 0);
+ }
+ if (i == 65536) {
+ Assert.assertTrue(Double.isInfinite(r));
+ }
+ }
+ }
+
+ /**
+ * Integers in the range [0, 65520] should be representable.
+ */
+
+ @SuppressWarnings({ "static-method", "boxing" }) @Test public
+ void
+ testPackUnpackFloat()
+ {
+ for (int i = 0; i <= 65536; ++i) {
+ final float in = i;
+ final char packed = Binary16.packFloat(in);
+ final float r = Binary16.unpackFloat(packed);
+ System.out.println(String.format(
+ "packed: 0x%04x 0b%s in: %f unpacked: %f",
+ (int) packed,
+ Binary16.toRawBinaryString(packed),
+ in,
+ r));
+ if (i <= 2048) {
+ Assert.assertEquals(in, r, 0.0);
+ }
+ if ((i > 2048) && (i <= 4096)) {
+ Assert.assertTrue((r % 2) == 0);
+ }
+ if ((i > 4096) && (i <= 8192)) {
+ Assert.assertTrue((r % 4) == 0);
+ }
+ if ((i > 8192) && (i <= 16384)) {
+ Assert.assertTrue((r % 8) == 0);
+ }
+ if ((i > 16384) && (i <= 32768)) {
+ Assert.assertTrue((r % 16) == 0);
+ }
+ if ((i > 32768) && (i < 65536)) {
+ Assert.assertTrue((r % 32) == 0);
+ }
+ if (i == 65536) {
+ Assert.assertTrue(Float.isInfinite(r));
+ }
+ }
+ }
+
+ /**
+ * Signs in the range [0, 1] are encoded and decoded correctly.
+ */
+
+ @SuppressWarnings("static-method") @Test public void testSignIdentity()
+ {
+ System.out.println("-- Sign identities");
+ for (int e = 0; e <= 1; ++e) {
+ final char p = Binary16.packSetSignUnchecked(e);
+ final int u = Binary16.unpackGetSign(p);
+ System.out.println("e: " + e);
+ System.out.println("p: " + Integer.toHexString(p));
+ System.out.println("u: " + u);
+ Assert.assertEquals(e, u);
+ }
+ }
+
+ /**
+ * Significands in the range [0, 1023] are encoded and decoded correctly.
+ */
+
+ @SuppressWarnings("static-method") @Test public
+ void
+ testSignificandIdentity()
+ {
+ System.out.println("-- Significand identities");
+ for (int e = 0; e <= 1023; ++e) {
+ final char p = Binary16.packSetSignificandUnchecked(e);
+ final int u = Binary16.unpackGetSignificand(p);
+ System.out.println("e: " + e);
+ System.out.println("p: " + Integer.toHexString(p));
+ System.out.println("u: " + u);
+ Assert.assertEquals(e, u);
+ }
+ }
+
+ /**
+ * Unpacking NaN results in NaN.
+ */
+
+ @SuppressWarnings("static-method") @Test public void testUnpackDoubleNaN()
+ {
+ final double k = Binary16.unpackDouble(Binary16.exampleNaN());
+ Assert.assertTrue(Double.isNaN(k));
+ }
+
+ /**
+ * Unpacking negative infinity results in negative infinity.
+ */
+
+ @SuppressWarnings("static-method") @Test public
+ void
+ testUnpackDoubleNegativeInfinity()
+ {
+ Assert.assertTrue(Double.NEGATIVE_INFINITY == Binary16
+ .unpackDouble(Binary16.NEGATIVE_INFINITY));
+ }
+
+ /**
+ * Unpacking negative zero results in negative zero.
+ */
+
+ @SuppressWarnings("static-method") @Test public
+ void
+ testUnpackDoubleNegativeZero()
+ {
+ Assert.assertTrue(-0.0 == Binary16.unpackDouble(Binary16.NEGATIVE_ZERO));
+ }
+
+ /**
+ * Unpacking 1.0 results in 1.0.
+ */
+
+ @SuppressWarnings({ "static-method", "boxing" }) @Test public
+ void
+ testUnpackDoubleOne()
+ {
+ final char one = 0x3C00;
+ final double r = Binary16.unpackDouble(one);
+ System.out.println(String.format("0x%04x -> %f", (int) one, r));
+ Assert.assertEquals(r, 1.0, 0.0);
+ }
+
+ /**
+ * Unpacking -1.0 results in -1.0.
+ */
+
+ @SuppressWarnings({ "static-method", "boxing" }) @Test public
+ void
+ testUnpackDoubleOneNegative()
+ {
+ final char one = 0xBC00;
+ final double r = Binary16.unpackDouble(one);
+ System.out.println(String.format("0x%04x -> %f", (int) one, r));
+ Assert.assertEquals(r, -1.0, 0.0);
+ }
+
+ /**
+ * Unpacking positive infinity results in positive infinity.
+ */
+
+ @SuppressWarnings("static-method") @Test public
+ void
+ testUnpackDoublePositiveInfinity()
+ {
+ Assert.assertTrue(Double.POSITIVE_INFINITY == Binary16
+ .unpackDouble(Binary16.POSITIVE_INFINITY));
+ }
+
+ /**
+ * Unpacking positive zero results in positive zero.
+ */
+
+ @SuppressWarnings("static-method") @Test public
+ void
+ testUnpackDoublePositiveZero()
+ {
+ Assert.assertTrue(0.0 == Binary16.unpackDouble(Binary16.POSITIVE_ZERO));
+ }
+
+ /**
+ * Unpacking 2.0 results in 2.0.
+ */
+
+ @SuppressWarnings({ "static-method", "boxing" }) @Test public
+ void
+ testUnpackDoubleTwo()
+ {
+ final char one = 0x4000;
+ final double r = Binary16.unpackDouble(one);
+ System.out.println(String.format("%04x -> %f", (int) one, r));
+ Assert.assertEquals(r, 2.0, 0.0);
+ }
+
+ /**
+ * Unpacking -2.0 results in -2.0.
+ */
+
+ @SuppressWarnings({ "static-method", "boxing" }) @Test public
+ void
+ testUnpackDoubleTwoNegative()
+ {
+ final char one = 0xC000;
+ final double r = Binary16.unpackDouble(one);
+ System.out.println(String.format("%04x -> %f", (int) one, r));
+ Assert.assertEquals(r, -2.0, 0.0);
+ }
+
+ /**
+ * Unpacking NaN results in NaN.
+ */
+
+ @SuppressWarnings("static-method") @Test public void testUnpackFloatNaN()
+ {
+ final float k = Binary16.unpackFloat(Binary16.exampleNaN());
+ Assert.assertTrue(Float.isNaN(k));
+ }
+
+ /**
+ * Unpacking negative infinity results in negative infinity.
+ */
+
+ @SuppressWarnings("static-method") @Test public
+ void
+ testUnpackFloatNegativeInfinity()
+ {
+ Assert.assertTrue(Float.NEGATIVE_INFINITY == Binary16
+ .unpackFloat(Binary16.NEGATIVE_INFINITY));
+ }
+
+ /**
+ * Unpacking negative zero results in negative zero.
+ */
+
+ @SuppressWarnings("static-method") @Test public
+ void
+ testUnpackFloatNegativeZero()
+ {
+ Assert.assertTrue(-0.0 == Binary16.unpackFloat(Binary16.NEGATIVE_ZERO));
+ }
+
+ /**
+ * Unpacking 1.0 results in 1.0.
+ */
+
+ @SuppressWarnings({ "static-method", "boxing" }) @Test public
+ void
+ testUnpackFloatOne()
+ {
+ final char one = 0x3C00;
+ final float r = Binary16.unpackFloat(one);
+ System.out.println(String.format("0x%04x -> %f", (int) one, r));
+ Assert.assertEquals(r, 1.0, 0.0);
+ }
+
+ /**
+ * Unpacking -1.0 results in -1.0.
+ */
+
+ @SuppressWarnings({ "static-method", "boxing" }) @Test public
+ void
+ testUnpackFloatOneNegative()
+ {
+ final char one = 0xBC00;
+ final float r = Binary16.unpackFloat(one);
+ System.out.println(String.format("0x%04x -> %f", (int) one, r));
+ Assert.assertEquals(r, -1.0, 0.0);
+ }
+}
diff --git a/src/test/com/jogamp/opengl/test/junit/jogl/math/Binary32Test.java b/src/test/com/jogamp/opengl/test/junit/jogl/math/Binary32Test.java
new file mode 100644
index 000000000..42e7f08a1
--- /dev/null
+++ b/src/test/com/jogamp/opengl/test/junit/jogl/math/Binary32Test.java
@@ -0,0 +1,93 @@
+/**
+ * Copyright 2013 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this list of
+ * conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice, this list
+ * of conditions and the following disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+
+package com.jogamp.opengl.test.junit.jogl.math;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+import com.jogamp.opengl.math.Binary32;
+
+public class Binary32Test
+{
+ @SuppressWarnings("static-method") @Test public void testInfinityExponent()
+ {
+ Assert.assertEquals(
+ 128,
+ Binary32.unpackGetExponentUnbiased(Float.POSITIVE_INFINITY));
+ }
+
+ @SuppressWarnings("static-method") @Test public
+ void
+ testInfinityNegativeExponent()
+ {
+ Assert.assertEquals(
+ 128,
+ Binary32.unpackGetExponentUnbiased(Float.NEGATIVE_INFINITY));
+ }
+
+ @SuppressWarnings("static-method") @Test public
+ void
+ testInfinityNegativeSign()
+ {
+ Assert.assertEquals(1, Binary32.unpackGetSign(Float.NEGATIVE_INFINITY));
+ }
+
+ @SuppressWarnings("static-method") @Test public
+ void
+ testInfinityNegativeSignificand()
+ {
+ Assert.assertEquals(
+ 0,
+ Binary32.unpackGetSignificand(Float.NEGATIVE_INFINITY));
+ }
+
+ @SuppressWarnings("static-method") @Test public void testInfinitySign()
+ {
+ Assert.assertEquals(0, Binary32.unpackGetSign(Float.POSITIVE_INFINITY));
+ }
+
+ @SuppressWarnings("static-method") @Test public
+ void
+ testInfinitySignificand()
+ {
+ Assert.assertEquals(
+ 0,
+ Binary32.unpackGetSignificand(Float.POSITIVE_INFINITY));
+ }
+
+ @SuppressWarnings("static-method") @Test public void testNaNExponent()
+ {
+ Assert.assertEquals(128, Binary32.unpackGetExponentUnbiased(Float.NaN));
+ }
+
+ @SuppressWarnings("static-method") @Test public void testNaNSignificand()
+ {
+ Assert.assertTrue(Binary32.unpackGetSignificand(Float.NaN) > 0);
+ }
+}
diff --git a/src/test/com/jogamp/opengl/test/junit/jogl/math/Binary64Test.java b/src/test/com/jogamp/opengl/test/junit/jogl/math/Binary64Test.java
new file mode 100644
index 000000000..78806985f
--- /dev/null
+++ b/src/test/com/jogamp/opengl/test/junit/jogl/math/Binary64Test.java
@@ -0,0 +1,93 @@
+/**
+ * Copyright 2013 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this list of
+ * conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice, this list
+ * of conditions and the following disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+
+package com.jogamp.opengl.test.junit.jogl.math;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+import com.jogamp.opengl.math.Binary64;
+
+public class Binary64Test
+{
+ @SuppressWarnings("static-method") @Test public void testInfinityExponent()
+ {
+ Assert.assertEquals(
+ 1024,
+ Binary64.unpackGetExponentUnbiased(Double.POSITIVE_INFINITY));
+ }
+
+ @SuppressWarnings("static-method") @Test public
+ void
+ testInfinityNegativeExponent()
+ {
+ Assert.assertEquals(
+ 1024,
+ Binary64.unpackGetExponentUnbiased(Double.NEGATIVE_INFINITY));
+ }
+
+ @SuppressWarnings("static-method") @Test public
+ void
+ testInfinityNegativeSign()
+ {
+ Assert.assertEquals(1, Binary64.unpackGetSign(Double.NEGATIVE_INFINITY));
+ }
+
+ @SuppressWarnings("static-method") @Test public
+ void
+ testInfinityNegativeSignificand()
+ {
+ Assert.assertEquals(
+ 0,
+ Binary64.unpackGetSignificand(Double.NEGATIVE_INFINITY));
+ }
+
+ @SuppressWarnings("static-method") @Test public void testInfinitySign()
+ {
+ Assert.assertEquals(0, Binary64.unpackGetSign(Double.POSITIVE_INFINITY));
+ }
+
+ @SuppressWarnings("static-method") @Test public
+ void
+ testInfinitySignificand()
+ {
+ Assert.assertEquals(
+ 0,
+ Binary64.unpackGetSignificand(Double.POSITIVE_INFINITY));
+ }
+
+ @SuppressWarnings("static-method") @Test public void testNaNExponent()
+ {
+ Assert.assertEquals(1024, Binary64.unpackGetExponentUnbiased(Double.NaN));
+ }
+
+ @SuppressWarnings("static-method") @Test public void testNaNSignificand()
+ {
+ Assert.assertTrue(Binary64.unpackGetSignificand(Double.NaN) > 0);
+ }
+}