Buffers: Add normalized put methods, i.e. incl. value range conversion; New util. ValueConv for primitive type value conversion

1 files changed, 137 insertions, 0 deletions

diff --git a/src/junit/com/jogamp/common/util/TestValueConversion.java b/src/junit/com/jogamp/common/util/TestValueConversion.java
new file mode 100644
index 0000000..2a437b8
--- /dev/null
+++ b/src/junit/com/jogamp/common/util/TestValueConversion.java
@@ -0,0 +1,137 @@
+/**
+ * Copyright 2012 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.common.util;
+
+import junit.framework.Assert;
+
+import org.junit.Test;
+
+import static com.jogamp.common.util.ValueConv.*;
+
+/**
+ * Testing ValueConv's value conversion of primitive types
+ */
+public class TestValueConversion {
+        
+    @Test
+    public void testBaseFloat() {
+        Assert.assertEquals(Byte.MAX_VALUE, float_to_byte( 1.0f, true));
+        Assert.assertEquals(Byte.MIN_VALUE, float_to_byte(-1.0f, true));
+        Assert.assertEquals( 1.0f, byte_to_float( Byte.MAX_VALUE, true));
+        Assert.assertEquals(-1.0f, byte_to_float( Byte.MIN_VALUE, true));
+        
+        Assert.assertEquals(Short.MAX_VALUE, float_to_short( 1.0f, true));
+        Assert.assertEquals(Short.MIN_VALUE, float_to_short(-1.0f, true));
+        Assert.assertEquals( 1.0f, short_to_float( Short.MAX_VALUE, true));
+        Assert.assertEquals(-1.0f, short_to_float( Short.MIN_VALUE, true));
+        
+        Assert.assertEquals(Integer.MAX_VALUE, float_to_int( 1.0f, true));
+        Assert.assertEquals(Integer.MIN_VALUE, float_to_int(-1.0f, true));
+        Assert.assertEquals( 1.0f, int_to_float( Integer.MAX_VALUE, true));
+        Assert.assertEquals(-1.0f, int_to_float( Integer.MIN_VALUE, true));
+                
+        Assert.assertEquals((byte)0xff, float_to_byte( 1.0f, false));
+        Assert.assertEquals( 1.0f, byte_to_float( (byte)0xff, false));
+        
+        Assert.assertEquals((short)0xffff, float_to_short( 1.0f, false));
+        Assert.assertEquals( 1.0f, short_to_float( (short)0xffff, false));
+        
+        Assert.assertEquals(0xffffffff, float_to_int( 1.0f, false));
+        Assert.assertEquals( 1.0f, int_to_float( 0xffffffff, false));
+    }
+        
+    @Test
+    public void testBaseDouble() {
+        Assert.assertEquals(Byte.MAX_VALUE, double_to_byte( 1.0, true));
+        Assert.assertEquals(Byte.MIN_VALUE, double_to_byte(-1.0, true));
+        Assert.assertEquals( 1.0, byte_to_double( Byte.MAX_VALUE, true));
+        Assert.assertEquals(-1.0, byte_to_double( Byte.MIN_VALUE, true));
+        
+        Assert.assertEquals(Short.MAX_VALUE, double_to_short( 1.0, true));
+        Assert.assertEquals(Short.MIN_VALUE, double_to_short(-1.0, true));
+        Assert.assertEquals( 1.0, short_to_double( Short.MAX_VALUE, true));
+        Assert.assertEquals(-1.0, short_to_double( Short.MIN_VALUE, true));
+        
+        Assert.assertEquals(Integer.MAX_VALUE, double_to_int( 1.0, true));
+        Assert.assertEquals(Integer.MIN_VALUE, double_to_int(-1.0, true));
+        Assert.assertEquals( 1.0, int_to_double( Integer.MAX_VALUE, true));
+        Assert.assertEquals(-1.0, int_to_double( Integer.MIN_VALUE, true));
+                
+        Assert.assertEquals((byte)0xff, double_to_byte( 1.0, false));
+        Assert.assertEquals( 1.0, byte_to_double( (byte)0xff, false));
+        
+        Assert.assertEquals((short)0xffff, double_to_short( 1.0, false));
+        Assert.assertEquals( 1.0, short_to_double( (short)0xffff, false));
+        
+        Assert.assertEquals(0xffffffff, double_to_int( 1.0, false));
+        Assert.assertEquals( 1.0, int_to_double( 0xffffffff, false));
+    }
+    
+    @Test
+    public void testConversion() {                        
+        byte sb0 = 127;
+        byte sb1 = -128;
+        
+        float sf0 = byte_to_float(sb0, true);
+        float sf1 = byte_to_float(sb1, true);
+        short ss0 = byte_to_short(sb0, true, true);
+        short ss1 = byte_to_short(sb1, true, true);
+        int si0 = byte_to_int(sb0, true, true);
+        int si1 = byte_to_int(sb1, true, true);
+        
+        Assert.assertEquals(1.0f, sf0);
+        Assert.assertEquals(-1.0f, sf1);
+        Assert.assertEquals(Short.MAX_VALUE, ss0);
+        Assert.assertEquals(Short.MIN_VALUE, ss1);
+        Assert.assertEquals(Integer.MAX_VALUE, si0);
+        Assert.assertEquals(Integer.MIN_VALUE, si1);
+        
+        Assert.assertEquals(sb0, short_to_byte(ss0, true, true));
+        Assert.assertEquals(sb1, short_to_byte(ss1, true, true));
+        Assert.assertEquals(sb0, int_to_byte(si0, true, true));
+        Assert.assertEquals(sb1, int_to_byte(si1, true, true));
+        
+        byte ub0 = (byte) 0xff;
+        float uf0 = byte_to_float(ub0, false);
+        short us0 = byte_to_short(ub0, false, false);
+        int ui0 = byte_to_int(ub0, false, false);
+                
+        Assert.assertEquals(1.0f, uf0);
+        Assert.assertEquals((short)0xffff, us0);
+        Assert.assertEquals(0xffffffff, ui0);
+        
+        Assert.assertEquals(ub0, short_to_byte(us0, false, false));
+        Assert.assertEquals(us0, int_to_short(ui0, false, false));
+    }
+    
+    public static void main(String args[]) {
+        org.junit.runner.JUnitCore.main(TestValueConversion.class.getName());
+    }
+
+}