Fix build errors/warnings.

extern/poshlib/posh.h

@@ -692,8 +692,8 @@ typedef unsigned long posh_u64_t;
 #  define POSH_64BIT_INTEGER 1
 typedef __int64 posh_i64_t;
 typedef unsigned __int64 posh_u64_t;
-#  define POSH_I64( x ) ((posh_i64_t)x)
-#  define POSH_U64( x ) ((posh_u64_t)x)
+#  define POSH_I64( x ) ((posh_i64_t)(x##i64))
+#  define POSH_U64( x ) ((posh_u64_t)(x##ui64))
 #  define POSH_I64_PRINTF_PREFIX "I64"
 #elif defined __GNUC__ || defined __MWERKS__ || defined __SUNPRO_C || defined __SUNPRO_CC || defined __APPLE_CC__ || defined POSH_OS_IRIX || defined _LONG_LONG || defined _CRAYC
 #  define POSH_64BIT_INTEGER 1

src/nvmath/nvmath.h

@@ -238,15 +238,17 @@ namespace nv
     // I'm always confused about which quantizer to use. I think we should choose a quantizer based on how the values are expanded later and this is generally using the 'exact endpoints' rule.
 
     // Quantize a [0, 1] full precision float, using exact endpoints.
-    inline float quantizeFloat(float f, int bits) {
-        float scale = (1 << bits) - 1;
+    inline float quantizeFloat(float f, uint bits) {
+        nvDebugCheck(bits <= 16);
+        float scale = float((1 << bits) - 1);
         float offset = 0.0f;
         return floor(saturate(f) * scale + offset) / scale;
     }
 
     // Quantize a [0, 1] full precision float, using uniform bins.
-    /*inline float quantizeFloat(float f, int bits) {
-        float scale = (1 << bits);
+    /*inline float quantizeFloat(float f, uint bits) {
+        nvDebugCheck(bits <= 16);
+        float scale = float(1 << bits);
         float offset = 0.5f;
         return floor(saturate(f) * scale + offset) / scale;
     }*/

src/nvtt/Surface.cpp

@@ -1469,10 +1469,10 @@ void Surface::toRGBE(int mantissaBits, int exponentBits)
         int E = max(- exponentBias - 1, floatExponent(M)) + 1 + exponentBias;
         nvDebugCheck(E >= 0 && E < (1 << exponentBits));
 
-        double denom = pow(2, E - exponentBias - mantissaBits);
+        double denom = pow(2.0, double(E - exponentBias - mantissaBits));
 
         // Refine exponent:
-        int m = iround(M / denom);
+        int m = iround(float(M / denom));
         nvDebugCheck(m <= (1 << mantissaBits));
 
         if (m == (1 << mantissaBits)) {
@@ -1481,9 +1481,9 @@ void Surface::toRGBE(int mantissaBits, int exponentBits)
             nvDebugCheck(E < (1 << exponentBits));
         }
 
-        R = floatRound(R / denom);
-        G = floatRound(G / denom);
-        B = floatRound(B / denom);
+        R = floatRound(float(R / denom));
+        G = floatRound(float(G / denom));
+        B = floatRound(float(B / denom));
 
         nvDebugCheck(R >= 0 && R < (1 << mantissaBits));
         nvDebugCheck(G >= 0 && G < (1 << mantissaBits));
@@ -1493,7 +1493,7 @@ void Surface::toRGBE(int mantissaBits, int exponentBits)
         r[i] = R / ((1 << mantissaBits) - 1);
         g[i] = G / ((1 << mantissaBits) - 1);
         b[i] = B / ((1 << mantissaBits) - 1);
-        a[i] = E / ((1 << exponentBits) - 1);
+        a[i] = float(E) / ((1 << exponentBits) - 1);
     }
 }
 
@@ -1529,7 +1529,7 @@ void Surface::fromRGBE(int mantissaBits, int exponentBits)
     detach();
 
     // exponent bias: 5 -> 15, 8 -> 127
-    const float exponentBias = (1 << (exponentBits - 1)) - 1;
+    const int exponentBias = (1 << (exponentBits - 1)) - 1;
 
     FloatImage * img = m->image;
     float * r = img->channel(0);
@@ -1545,7 +1545,7 @@ void Surface::fromRGBE(int mantissaBits, int exponentBits)
         int B = iround(b[i] * ((1 << mantissaBits) - 1));
         int E = iround(a[i] * ((1 << exponentBits) - 1));
 
-        float scale = powf(2, E - exponentBias - mantissaBits);
+        float scale = powf(2, float(E - exponentBias - mantissaBits));
 
         r[i] = R * scale;
         g[i] = G * scale;