Added packF11F11F10 implementation

test/gtc/CMakeLists.txt

@@ -6,6 +6,7 @@ glmCreateTestGTC(gtc_matrix_integer)
 glmCreateTestGTC(gtc_matrix_inverse)
 glmCreateTestGTC(gtc_matrix_transform)
 glmCreateTestGTC(gtc_noise)
+glmCreateTestGTC(gtc_packing)
 glmCreateTestGTC(gtc_quaternion)
 glmCreateTestGTC(gtc_random)
 glmCreateTestGTC(gtc_reciprocal)

test/gtc/gtc_packing.cpp

@@ -0,0 +1,142 @@
+///////////////////////////////////////////////////////////////////////////////////
+/// OpenGL Mathematics (glm.g-truc.net)
+///
+/// Copyright (c) 2005 - 2013 G-Truc Creation (www.g-truc.net)
+/// Permission is hereby granted, free of charge, to any person obtaining a copy
+/// of this software and associated documentation files (the "Software"), to deal
+/// in the Software without restriction, including without limitation the rights
+/// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+/// copies of the Software, and to permit persons to whom the Software is
+/// furnished to do so, subject to the following conditions:
+/// 
+/// The above copyright notice and this permission notice shall be included in
+/// all copies or substantial portions of the Software.
+/// 
+/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+/// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+/// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+/// THE SOFTWARE.
+///
+/// @ref test
+/// @file test/gtc/packing.cpp
+/// @date 2013-08-09 / 2013-08-09
+/// @author Christophe Riccio
+///////////////////////////////////////////////////////////////////////////////////
+
+
+#include <glm/glm.hpp>
+#include <glm/gtc/packing.hpp>
+
+void print_bits(glm::half const & s)
+{
+    union
+    {
+        glm::detail::hdata h;
+        unsigned short i;
+    } uif;
+    
+    uif.h = s._data();
+    
+    printf("f16: ");
+    for(std::size_t j = sizeof(s) * 8; j > 0; --j)
+    {
+        if(j == 10 || j == 15)
+            printf(" ");
+        printf("%d", (uif.i & (1 << (j - 1))) ? 1 : 0);
+    }
+}
+
+void print_bits(float const & s)
+{
+    union
+    {
+        float f;
+        unsigned int i;
+    } uif;
+    
+    uif.f = s;
+    
+    printf("f32: ");
+    for(std::size_t j = sizeof(s) * 8; j > 0; --j)
+    {
+        if(j == 23 || j == 31)
+            printf(" ");
+        printf("%d", (uif.i & (1 << (j - 1))) ? 1 : 0);
+    }
+}
+
+void print_10bits(glm::uint const & s)
+{
+    printf("10b: ");
+    for(std::size_t j = 10; j > 0; --j)
+    {
+        if(j == 5)
+            printf(" ");
+        printf("%d", (s & (1 << (j - 1))) ? 1 : 0);
+    }
+}
+
+void print_11bits(glm::uint const & s)
+{
+    printf("11b: ");
+    for(std::size_t j = 11; j > 0; --j)
+    {
+        if(j == 6)
+            printf(" ");
+        printf("%d", (s & (1 << (j - 1))) ? 1 : 0);
+    }
+}
+
+void print_value(float const & s)
+{
+    printf("%2.5f, ", s);
+    print_bits(s);
+    printf(", ");
+    print_bits(glm::half(s));
+    printf(", ");
+    print_11bits(detail::floatTo11bit(s));
+    printf(", ");
+    print_10bits(detail::floatTo10bit(s));
+    printf("\n");
+}
+
+int test_half()
+{
+    int Error = 0;
+
+    print_value(0.0);
+    print_value(0.1);
+    print_value(0.2);
+    print_value(0.3);
+    print_value(0.4);
+    print_value(0.5);
+    print_value(0.6);
+    print_value(1.0);
+    print_value(1.1);
+    print_value(1.2);
+    print_value(1.3);
+    print_value(1.4);
+    print_value(1.5);
+    print_value(1.6);
+    print_value(2.0);
+    print_value(2.1);
+    print_value(2.2);
+    print_value(2.3);
+    print_value(2.4);
+    print_value(2.5);
+    print_value(2.6);
+    
+    return Error;
+}
+
+int main()
+{
+	int Error(0);
+
+    Error += test_half();
+
+	return Error;
+}