Dump FourCC correctly, print conversion messages, add reference to

dlls/ddraw/dsurface/main.c

@@ -1084,6 +1084,8 @@ HRESULT WINAPI IDirectDrawSurface4Impl_GetDDInterface(
     FIXME("(%p)->(%p),stub!\n", This, lplpDD);
 
     /* Not sure about that... */
+
+    IDirectDraw_AddRef((LPDIRECTDRAW)This->s.ddraw),
     *lplpDD = (void *) This->s.ddraw;
 
     return DD_OK;

dlls/ddraw/helper.c

@@ -221,8 +221,14 @@ void _dump_pixelformat(void *in) {
 
     DPRINTF("( ");
     _dump_pixelformat_flag(pf->dwFlags);
-    if (pf->dwFlags & DDPF_FOURCC)
-	DPRINTF(", dwFourCC : %ld", pf->dwFourCC);
+    if (pf->dwFlags & DDPF_FOURCC) {
+	DPRINTF(", dwFourCC : %c%c%c%c",
+		(pf->dwFourCC>>24)&0xff,
+		(pf->dwFourCC>>16)&0xff,
+		(pf->dwFourCC>> 8)&0xff,
+		 pf->dwFourCC     &0xff
+	);
+    }
     if (pf->dwFlags & DDPF_RGB) {
 	char *cmd;
 	DPRINTF(", RGB bits: %ld, ", pf->u.dwRGBBitCount);

dlls/ddraw/x11.c

@@ -71,7 +71,12 @@ static HRESULT X11_Create( LPDIRECTDRAW *lplpDD ) {
     /* At DirectDraw creation, the depth is the default depth */
     depth = DefaultDepthOfScreen(X11DRV_GetXScreen());
 
-    _common_depth_to_pixelformat(depth,(LPDIRECTDRAW)ddraw);
+    switch (_common_depth_to_pixelformat(depth,(LPDIRECTDRAW)ddraw)) {
+    case -2: ERR("no depth conversion mode for depth %d found\n",depth); break;
+    case -1: WARN("No conversion needed for depth %d.\n",depth); break;
+    case 0: MESSAGE("Conversion needed from %d.\n",depth); break;
+    }
+
     ddraw->d.height = MONITOR_GetHeight(&MONITOR_PrimaryMonitor);
     ddraw->d.width = MONITOR_GetWidth(&MONITOR_PrimaryMonitor);
 #ifdef HAVE_LIBXXSHM