Various cleanup.

[xonotic/darkplaces.git] / image.c

diff --git a/image.c b/image.c
index d72ceca744644700e558808c08a4dd86dc1fbd85..1f15a2fce253d4d330d7edb1e05d5935d800222d 100644 (file)
--- a/image.c
+++ b/image.c
@@ -801,22 +801,36 @@ qboolean LoadWAL_GetMetadata(const unsigned char *f, int filesize, int *retwidth
        if (filesize < (int) sizeof(q2wal_t))
        {
                Con_Print("LoadWAL: invalid WAL file\n");
-               *retwidth = 16;
-               *retheight = 16;
-               *retflags = 0;
-               *retvalue = 0;
-               *retcontents = 0;
-               memset(retanimname32c, 0, 32);
+               if (retwidth)
+                       *retwidth = 16;
+               if (retheight)
+                       *retheight = 16;
+               if (retflags)
+                       *retflags = 0;
+               if (retvalue)
+                       *retvalue = 0;
+               if (retcontents)
+                       *retcontents = 0;
+               if (retanimname32c)
+                       memset(retanimname32c, 0, 32);
                return false;
        }
 
-       *retwidth = LittleLong(inwal->width);
-       *retheight = LittleLong(inwal->height);
-       *retflags = LittleLong(inwal->flags);
-       *retvalue = LittleLong(inwal->value);
-       *retcontents = LittleLong(inwal->contents);
-       memcpy(retanimname32c, inwal->animname, 32);
-       retanimname32c[31] = 0;
+       if (retwidth)
+               *retwidth = LittleLong(inwal->width);
+       if (retheight)
+               *retheight = LittleLong(inwal->height);
+       if (retflags)
+               *retflags = LittleLong(inwal->flags);
+       if (retvalue)
+               *retvalue = LittleLong(inwal->value);
+       if (retcontents)
+               *retcontents = LittleLong(inwal->contents);
+       if (retanimname32c)
+       {
+               memcpy(retanimname32c, inwal->animname, 32);
+               retanimname32c[31] = 0;
+       }
        return true;
 }