From: José Fonseca <jfonseca@vmware.com>
Date: Fri, 1 Jan 2010 19:39:09 +0000 (+0000)
Subject: util: Silent potential loss of precision warnings.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=c852e960ccb5d2727ccaaf2829e89596a6be3128;p=mesa.git

util: Silent potential loss of precision warnings.

Also ensure multiplication doesn't happen for negative numbers.
---

diff --git a/src/gallium/auxiliary/util/u_math.h b/src/gallium/auxiliary/util/u_math.h
index 81aeb83cbb5..b2969a210a7 100644
--- a/src/gallium/auxiliary/util/u_math.h
+++ b/src/gallium/auxiliary/util/u_math.h
@@ -585,13 +585,12 @@ do {                                     \
 
 static INLINE uint32_t util_unsigned_fixed(float value, unsigned frac_bits)
 {
-   value *= (1<<frac_bits);
-   return value < 0 ? 0 : value;
+   return value < 0 ? 0 : (uint32_t)(value * (1<<frac_bits));
 }
 
 static INLINE int32_t util_signed_fixed(float value, unsigned frac_bits)
 {
-   return value * (1<<frac_bits);
+   return (int32_t)(value * (1<<frac_bits));
 }