From: Jason Ekstrand <jason.ekstrand@intel.com>
Date: Fri, 1 Aug 2014 23:41:16 +0000 (-0700)
Subject: mesa/imports: Add a _mesa_half_is_negative helper function
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=452d64986bd510753d13b56b33951f1b4348e3a9;p=mesa.git

mesa/imports: Add a _mesa_half_is_negative helper function

Signed-off-by: Jason Ekstrand <jason.ekstrand@intel.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
---

diff --git a/src/mesa/main/imports.h b/src/mesa/main/imports.h
index 09e55ebf0ff..023ef2e6399 100644
--- a/src/mesa/main/imports.h
+++ b/src/mesa/main/imports.h
@@ -552,6 +552,11 @@ _mesa_float_to_half(float f);
 extern float
 _mesa_half_to_float(GLhalfARB h);
 
+static inline bool
+_mesa_half_is_negative(GLhalfARB h)
+{
+   return h & 0x8000;
+}
 
 extern void *
 _mesa_bsearch( const void *key, const void *base, size_t nmemb, size_t size,