From: Jason Ekstrand <jason.ekstr...@intel.com>
This patch fixes the return of a wrong value when x is lower than
-MAX_INT(src_bits) as the result would not be between [-1.0 1.0].
v2 by Samuel Iglesias <sigles...@igalia.com>:
- Modify snorm_to_float() to avoid doing the division when
x == -MAX_INT(src_bits)
Reviewed-by: Ian Romanick <ian.d.roman...@intel.com>
---
src/mesa/main/format_utils.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/mesa/main/format_utils.c b/src/mesa/main/format_utils.c
index 93a0cea..5dd0848 100644
--- a/src/mesa/main/format_utils.c
+++ b/src/mesa/main/format_utils.c
@@ -152,7 +152,7 @@ unorm_to_float(unsigned x, unsigned src_bits)
static inline float
snorm_to_float(int x, unsigned src_bits)
{
- if (x == -MAX_INT(src_bits))
+ if (x <= -MAX_INT(src_bits))
return -1.0f;
else
return x * (1.0f / (float)MAX_INT(src_bits));
--
1.9.1
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