Henri Verbeet : wined3d: Use the absolute source value in shader_glsl_rsq() .

[Alexandre Julliard]

Module: wine
Branch: master
Commit: c43c2a284513d85f3bb0a31da21e6177c97d41f1
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=c43c2a284513d85f3bb0a31da2...

Author: Henri Verbeet <hverbeet(a)codeweavers.com>
Date:   Mon Feb  1 13:52:59 2010 +0100

wined3d: Use the absolute source value in shader_glsl_rsq().

---

 dlls/wined3d/glsl_shader.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/dlls/wined3d/glsl_shader.c b/dlls/wined3d/glsl_shader.c
index 6357e06..4892bfe 100644
--- a/dlls/wined3d/glsl_shader.c
+++ b/dlls/wined3d/glsl_shader.c
@@ -2255,12 +2255,12 @@ static void shader_glsl_rsq(const struct wined3d_shader_instruction *ins)
 
     if (mask_size > 1)
     {
-        shader_addline(buffer, "vec%d(%s == 0.0 ? FLT_MAX : inversesqrt(%s)));\n",
+        shader_addline(buffer, "vec%d(%s == 0.0 ? FLT_MAX : inversesqrt(abs(%s))));\n",
                 mask_size, src_param.param_str, src_param.param_str);
     }
     else
     {
-        shader_addline(buffer, "%s == 0.0 ? FLT_MAX : inversesqrt(%s));\n",
+        shader_addline(buffer, "%s == 0.0 ? FLT_MAX : inversesqrt(abs(%s)));\n",
                 src_param.param_str, src_param.param_str);
     }
 }