wined3d: Use NAN.

dlls/wined3d/drawprim.c

@@ -25,6 +25,8 @@
  */
 
 #include "config.h"
+#include "wine/port.h"
+
 #include "wined3d_private.h"
 
 WINE_DEFAULT_DEBUG_CHANNEL(d3d_draw);

dlls/wined3d/utils.c

@@ -25,6 +25,8 @@
  */
 
 #include "config.h"
+#include "wine/port.h"
+
 #include "wined3d_private.h"
 
 WINE_DEFAULT_DEBUG_CHANNEL(d3d);

dlls/wined3d/wined3d_private.h

@@ -200,7 +200,7 @@ static inline float float_16_to_32(const unsigned short *in) {
         return sgn * powf(2, (float)e - 15.0f) * (1.0f + ((float)m / 1024.0f));
     } else {
         if(m == 0) return sgn / 0.0f; /* +INF / -INF */
-        else return 0.0f / 0.0f; /* NAN */
+        else return NAN;
     }
 }
 
@@ -222,7 +222,7 @@ static inline float float_24_to_32(DWORD in)
     else
     {
         if (m == 0) return sgn / 0.0f; /* +INF / -INF */
-        else return 0.0f / 0.0f; /* NAN */
+        else return NAN;
     }
 }