wined3d: Make the texunit field in struct stb_const_desc unsigned.

diff --git a/dlls/wined3d/wined3d_private.h b/dlls/wined3d/wined3d_private.h
index 2125366d4695bdf0effb54cba9b596639f4f6cdd..c90a77dbd499d4db1efa3651eb22b733f22da4f9 100644 (file)
--- a/dlls/wined3d/wined3d_private.h
+++ b/dlls/wined3d/wined3d_private.h
@@ -438,7 +438,7 @@ enum vertexprocessing_mode {
 #define WINED3D_CONST_NUM_UNUSED ~0U
 
 struct stb_const_desc {
-    char                    texunit;
+    unsigned char           texunit;
     UINT                    const_num;
 };