make sure the return value of R_PicmipForFlags can't get negative

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@10374 d7cf8633-e32d-0410-b094-e92efae38249
::stable-branch::merge=4ac44fe8bfceff11a0ff0bd8ccb8d095ad9c873b

diff --git a/gl_textures.c b/gl_textures.c
index f7245a9892cbb859d09a79f8809378f4a5c1e27f..cbf5da9f2b35a38c5cfef88a15809dcb60239606 100644 (file)
--- a/gl_textures.c
+++ b/gl_textures.c
@@ -1584,5 +1584,5 @@ int R_PicmipForFlags(int flags)
                else
                        miplevel += gl_picmip_other.integer;
        }
-       return miplevel;
+       return max(0, miplevel);
 }