From bca7777fa507a509f413c6dc8919bab641fe0d15 Mon Sep 17 00:00:00 2001 From: Mark Raynsford Date: Thu, 31 Oct 2013 01:07:48 +0000 Subject: Add functions for converting to and from binary16 half-precision floating point values. Derived from http://mvn.io7m.com/ieee754b16, of which I am the original author. --- .../opengl/test/junit/jogl/math/Binary16Test.java | 685 +++++++++++++++++++++ .../opengl/test/junit/jogl/math/Binary32Test.java | 93 +++ .../opengl/test/junit/jogl/math/Binary64Test.java | 93 +++ 3 files changed, 871 insertions(+) create mode 100644 src/test/com/jogamp/opengl/test/junit/jogl/math/Binary16Test.java create mode 100644 src/test/com/jogamp/opengl/test/junit/jogl/math/Binary32Test.java create mode 100644 src/test/com/jogamp/opengl/test/junit/jogl/math/Binary64Test.java (limited to 'src/test/com') 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); + } +} -- cgit v1.2.3