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

diff --git a/gl_textures.c b/gl_textures.c
index 448a9cd97bb4c74686d3ae5c9a13acbe60059565..e9b5d7101bc58961d6ce81f55fcfa7b134efb9e7 100644 (file)
--- a/gl_textures.c
+++ b/gl_textures.c
@@ -2206,5 +2206,5 @@ int R_PicmipForFlags(int flags)
                else
                        miplevel += gl_picmip_other.integer;
        }
-       return miplevel;
+       return max(0, miplevel);
 }