[ros-diffs] [tfaber] 56432: [WINED3D] - Do not rely on undefined behavior to get values easily accessible as constants. - Quick build fix. Will be sent to Wine, possibly modified.

[tfaber]

Author: tfaber
Date: Thu Apr 26 17:20:53 2012
New Revision: 56432

URL: http://svn.reactos.org/svn/reactos?rev=56432&view=rev
Log:
[WINED3D]
- Do not rely on undefined behavior to get values easily accessible as 
constants.
- Quick build fix. Will be sent to Wine, possibly modified.

Modified:
    trunk/reactos/dll/directx/wine/CMakeLists.txt
    trunk/reactos/dll/directx/wine/wined3d/state.c
    trunk/reactos/dll/directx/wine/wined3d/wined3d_private.h

Modified: trunk/reactos/dll/directx/wine/CMakeLists.txt
URL: 
http://svn.reactos.org/svn/reactos/trunk/reactos/dll/directx/wine/CMakeLists.txt?rev=56432&r1=56431&r2=56432&view=diff
==============================================================================
--- trunk/reactos/dll/directx/wine/CMakeLists.txt [iso-8859-1] (original)
+++ trunk/reactos/dll/directx/wine/CMakeLists.txt [iso-8859-1] Thu Apr 26 
17:20:53 2012
@@ -23,6 +23,4 @@
 add_subdirectory(d3dx9_41)
 add_subdirectory(d3dx9_42)
 add_subdirectory(ddraw)
-if(NOT MSVC)
-    add_subdirectory(wined3d)
-endif()
+add_subdirectory(wined3d)

Modified: trunk/reactos/dll/directx/wine/wined3d/state.c
URL: 
http://svn.reactos.org/svn/reactos/trunk/reactos/dll/directx/wine/wined3d/state.c?rev=56432&r1=56431&r2=56432&view=diff
==============================================================================
--- trunk/reactos/dll/directx/wine/wined3d/state.c [iso-8859-1] (original)
+++ trunk/reactos/dll/directx/wine/wined3d/state.c [iso-8859-1] Thu Apr 26 
17:20:53 2012
@@ -1042,7 +1042,7 @@
             fogend = tmpvalue.f;
             /* In GL, fogstart == fogend disables fog, in D3D everything's 
fogged.*/
             if(fogstart == fogend) {
-                fogstart = -1.0f / 0.0f;
+                fogstart = -INFINITY;
                 fogend = 0.0f;
             }
             break;

Modified: trunk/reactos/dll/directx/wine/wined3d/wined3d_private.h
URL: 
http://svn.reactos.org/svn/reactos/trunk/reactos/dll/directx/wine/wined3d/wined3d_private.h?rev=56432&r1=56431&r2=56432&view=diff
==============================================================================
--- trunk/reactos/dll/directx/wine/wined3d/wined3d_private.h [iso-8859-1] 
(original)
+++ trunk/reactos/dll/directx/wine/wined3d/wined3d_private.h [iso-8859-1] Thu 
Apr 26 17:20:53 2012
@@ -199,8 +199,8 @@
     } else if(e < 31) {
         return sgn * powf(2, (float)e - 15.0f) * (1.0f + ((float)m / 1024.0f));
     } else {
-        if(m == 0) return sgn / 0.0f; /* +INF / -INF */
-        else return 0.0f / 0.0f; /* NAN */
+        if(m == 0) return sgn * INFINITY; /* +INF / -INF */
+        else return NAN; /* NAN */
     }
 }
 
@@ -221,8 +221,8 @@
     }
     else
     {
-        if (m == 0) return sgn / 0.0f; /* +INF / -INF */
-        else return 0.0f / 0.0f; /* NAN */
+        if (m == 0) return sgn * INFINITY; /* +INF / -INF */
+        else return NAN; /* NAN */
     }
 }