Nozomi Kodama : d3dx9: Do not use relative error for small numbers.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 97317528317bf485f3b911f17530edd4a5a8ba19
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=97317528317bf485f3b911f17530edd4a5a8ba19

Author: Nozomi Kodama <nozomi.kodama at yahoo.com>
Date:   Sun Mar 31 13:35:24 2013 -1000

d3dx9: Do not use relative error for small numbers.

---

 dlls/d3dx9_36/tests/math.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/dlls/d3dx9_36/tests/math.c b/dlls/d3dx9_36/tests/math.c
index c093ad8..f44240f 100644
--- a/dlls/d3dx9_36/tests/math.c
+++ b/dlls/d3dx9_36/tests/math.c
@@ -27,7 +27,7 @@
 
 #define admitted_error 0.0001f
 
-#define relative_error(exp, out) ((exp == 0.0f) ? fabs(exp - out) : (fabs(1.0f - (out) / (exp))))
+#define relative_error(exp, out) (fabs(exp) < 0.01f ? fabs(exp - out) : fabs(1.0f - (out) / (exp)))
 
 #define expect_color(expectedcolor,gotcolor) ok((relative_error(expectedcolor.r, gotcolor.r)<admitted_error)&&(relative_error(expectedcolor.g, gotcolor.g)<admitted_error)&&(relative_error(expectedcolor.b, gotcolor.b)<admitted_error)&&(relative_error(expectedcolor.a, gotcolor.a)<admitted_error),"Expected Color= (%f, %f, %f, %f)\n , Got Color= (%f, %f, %f, %f)\n", expectedcolor.r, expectedcolor.g, expectedcolor.b, expectedcolor.a, gotcolor.r, gotcolor.g, gotcolor.b, gotcolor.a);