Move helper functions

src/rtextures.c

@@ -223,6 +223,8 @@ extern void LoadFontDefault(void);          // [Module: text] Loads default font
 //----------------------------------------------------------------------------------
 // Module specific Functions Declaration
 //----------------------------------------------------------------------------------
+static float HalfToFloat(unsigned short x);
+static unsigned short FloatToHalf(float x);
 static Vector4 *LoadImageDataNormalized(Image image);       // Load pixel data from image as Vector4 array (float normalized)
 
 //----------------------------------------------------------------------------------
@@ -4662,6 +4664,24 @@ int GetPixelDataSize(int width, int height, int format)
 //----------------------------------------------------------------------------------
 // Module specific Functions Definition
 //----------------------------------------------------------------------------------
+// From https://stackoverflow.com/questions/1659440/32-bit-to-16-bit-floating-point-conversion/60047308#60047308
+
+static float HalfToFloat(unsigned short x) {
+    const unsigned int e = (x&0x7C00)>>10; // exponent
+    const unsigned int m = (x&0x03FF)<<13; // mantissa
+    const float fm = (float)m;
+    const unsigned int v = (*(unsigned int*)&fm)>>23; // evil log2 bit hack to count leading zeros in denormalized format
+    const unsigned int r = (x&0x8000)<<16 | (e!=0)*((e+112)<<23|m) | ((e==0)&(m!=0))*((v-37)<<23|((m<<(150-v))&0x007FE000)); // sign : normalized : denormalized
+    return *(float*)&r;
+}
+
+static unsigned short FloatToHalf(float x) {
+    const unsigned int b = (*(unsigned int*)&x)+0x00001000; // round-to-nearest-even: add last bit after truncated mantissa
+    const unsigned int e = (b&0x7F800000)>>23; // exponent
+    const unsigned int m = b&0x007FFFFF; // mantissa; in line below: 0x007FF000 = 0x00800000-0x00001000 = decimal indicator flag - initial rounding
+    return (b&0x80000000)>>16 | (e>112)*((((e-112)<<10)&0x7C00)|m>>13) | ((e<113)&(e>101))*((((0x007FF000+m)>>(125-e))+1)>>1) | (e>143)*0x7FFF; // sign : normalized : denormalized : saturate
+}
+
 // Get pixel data from image as Vector4 array (float normalized)
 static Vector4 *LoadImageDataNormalized(Image image)
 {

src/utils.c

@@ -488,26 +488,3 @@ static int android_close(void *cookie)
     return 0;
 }
 #endif  // PLATFORM_ANDROID
-
-// From https://stackoverflow.com/questions/1659440/32-bit-to-16-bit-floating-point-conversion/60047308#60047308
-
-unsigned int AsUnsignedInt(const float x) {
-    return *(unsigned int*)&x;
-}
-float AsFloat(const unsigned int x) {
-    return *(float*)&x;
-}
-
-float HalfToFloat(unsigned short x) {
-    const unsigned int e = (x&0x7C00)>>10; // exponent
-    const unsigned int m = (x&0x03FF)<<13; // mantissa
-    const unsigned int v = AsUnsignedInt((float)m)>>23; // evil log2 bit hack to count leading zeros in denormalized format
-    return AsFloat((x&0x8000)<<16 | (e!=0)*((e+112)<<23|m) | ((e==0)&(m!=0))*((v-37)<<23|((m<<(150-v))&0x007FE000))); // sign : normalized : denormalized
-}
-
-unsigned short FloatToHalf(float x) {
-    const unsigned int b = AsUnsignedInt(x)+0x00001000; // round-to-nearest-even: add last bit after truncated mantissa
-    const unsigned int e = (b&0x7F800000)>>23; // exponent
-    const unsigned int m = b&0x007FFFFF; // mantissa; in line below: 0x007FF000 = 0x00800000-0x00001000 = decimal indicator flag - initial rounding
-    return (b&0x80000000)>>16 | (e>112)*((((e-112)<<10)&0x7C00)|m>>13) | ((e<113)&(e>101))*((((0x007FF000+m)>>(125-e))+1)>>1) | (e>143)*0x7FFF; // sign : normalized : denormalized : saturate
-}

src/utils.h

@@ -74,9 +74,6 @@ void InitAssetManager(AAssetManager *manager, const char *dataPath);   // Initia
 FILE *android_fopen(const char *fileName, const char *mode);           // Replacement for fopen() -> Read-only!
 #endif
 
-float HalfToFloat(unsigned short x);
-unsigned short FloatToHalf(float x);
-
 #if defined(__cplusplus)
 }
 #endif