added HalfFloatTest.cpp,removed ColorTest.cpp

CMakeLists.txt

@@ -15,8 +15,8 @@ macro(cm_example_project project_name)
     set_property(TARGET ${project_name} PROPERTY FOLDER "CM/Examples")
 endmacro()
 
-add_executable(ColorTest ColorTest.cpp)
-cm_example_project(ColorTest)
+add_executable(HalfFloatTest HalfFloatTest.cpp)
+cm_example_project(HalfFloatTest)
 
 add_executable(GetCpuInfo GetCpuInfo.cpp)
 cm_example_project(GetCpuInfo)

ColorTest.cpp

@@ -1,21 +0,0 @@
-#include<hgl/color/ColorFormat.h>
-#include<iostream>
-
-using namespace hgl;
-using namespace std;
-
-void half_float_test()
-{
-    const float         f_12_34 =12.34f;
-    const half_float    hf_12_23=float2half(12.34f);
-    const float         f_12_23_hf=half2float(hf_12_23);
-
-    cout<<"f_12_34="<<f_12_34<<endl;
-    cout<<"hf_12_23="<<hf_12_23<<endl;
-    cout<<"f_12_23_hf="<<f_12_23_hf<<endl;
-}
-
-void main(int,char **)
-{
-    half_float_test();
-}

HalfFloatTest.cpp

@@ -0,0 +1,61 @@
+#include<hgl/math/HalfFloat.h>
+#include<iostream>
+#include<cstdlib>
+#include<cmath>
+
+using namespace hgl;
+using namespace std;
+
+static float origin_float[4];
+
+void InitFloat4()
+{
+    //随机产生4个f32浮点数
+    {
+        srand(time(nullptr));
+
+        uint8 *p=(uint8 *)origin_float;
+    
+        for(uint i=0;i<16;i++)
+            p[i]=rand()%0xFF;
+    }
+
+    for(uint i=0;i<4;i++)
+    {
+        origin_float[i]=abs(origin_float[i]);
+    }
+}
+
+void OutputFloat4(const char *hint,const float *f)
+{
+    cout<<hint<<" float4: "<<f[0]<<","<<f[1]<<","<<f[2]<<","<<f[3]<<endl;
+}
+
+void OutputHalfFloat(const char *hint,const half_float *hf)
+{
+    cout<<hint<<" half_float: "<<hf[0]<<","<<hf[1]<<","<<hf[2]<<","<<hf[3]<<endl;
+}
+
+void half_float_test()
+{
+    OutputFloat4("origin",origin_float);
+
+    half_float hf_fast[4];
+    half_float hf_std[4];
+
+    float_to_half(hf_fast,origin_float,4);
+    Float32toFloat16(hf_std,origin_float,4);
+
+    for(uint i=0;i<4;i++)
+        hf_std[i]&=0x7FFF;      //去掉符号位
+
+    OutputHalfFloat("fast",hf_fast);
+    OutputHalfFloat("std ",hf_std);
+}
+
+void main(int,char **)
+{
+    InitFloat4();
+
+    half_float_test();
+}