[PATCH 1/1] wined3d: Check that format_id is >= 0 before assuming it's an index.

[Rémi Bernon]

From: Rémi Bernon

Some FOURCC values such as 0xdeadbeef will en up being negative when cast to the
enum type, and may cause a random crash later on. This happens randomly in the
ddraw tests, depending on the compiler being used.
---
 dlls/wined3d/utils.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dlls/wined3d/utils.c b/dlls/wined3d/utils.c
index 30572bc0ded..181914986f6 100644
--- a/dlls/wined3d/utils.c
+++ b/dlls/wined3d/utils.c
@@ -1933,7 +1933,7 @@ static inline int get_format_idx(enum wined3d_format_id format_id)
 {
     unsigned int i;

-    if (format_id < WINED3D_FORMAT_FOURCC_BASE)
+    if (format_id >= 0 && format_id < WINED3D_FORMAT_FOURCC_BASE)
         return format_id;

for (i = 0; i < ARRAY_SIZE(format_index_remap); ++i)