Michael Karcher : ddraw: Ensure to load wined3d before attempting to create a clipper.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 606186d4c5f1942e74c1bb1c563ea91252cfee8f
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=606186d4c5f1942e74c1bb1c563ea91252cfee8f

Author: Michael Karcher <wine at mkarcher.dialup.fu-berlin.de>
Date:   Sat Jun 21 16:02:49 2008 +0200

ddraw: Ensure to load wined3d before attempting to create a clipper.

---

 dlls/ddraw/ddraw.c         |    6 ++++++
 dlls/ddraw/ddraw_private.h |    3 +++
 dlls/ddraw/main.c          |   38 ++++++++++++++++++++++++++------------
 3 files changed, 35 insertions(+), 12 deletions(-)

diff --git a/dlls/ddraw/ddraw.c b/dlls/ddraw/ddraw.c
index ab78c4b..dfd77fa 100644
--- a/dlls/ddraw/ddraw.c
+++ b/dlls/ddraw/ddraw.c
@@ -3241,6 +3241,12 @@ DirectDrawCreateClipper(DWORD Flags,
         return CLASS_E_NOAGGREGATION;
     }
 
+    if (!LoadWineD3D())
+    {
+        LeaveCriticalSection(&ddraw_cs);
+        return DDERR_NODIRECTDRAWSUPPORT;
+    }
+
     object = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
                      sizeof(IDirectDrawClipperImpl));
     if (object == NULL)
diff --git a/dlls/ddraw/ddraw_private.h b/dlls/ddraw/ddraw_private.h
index f256c50..9842260 100644
--- a/dlls/ddraw/ddraw_private.h
+++ b/dlls/ddraw/ddraw_private.h
@@ -644,6 +644,9 @@ void DDRAW_dump_cooperativelevel(DWORD cooplevel);
  * IDirect3DExecuteBuffer isn't in WineD3D */
 void multiply_matrix(LPD3DMATRIX dest, const D3DMATRIX *src1, const D3DMATRIX *src2);
 
+/* Helper function in main.c */
+BOOL LoadWineD3D(void);
+
 /* Used for generic dumping */
 typedef struct
 {
diff --git a/dlls/ddraw/main.c b/dlls/ddraw/main.c
index ac1378d..d03a89c 100644
--- a/dlls/ddraw/main.c
+++ b/dlls/ddraw/main.c
@@ -49,7 +49,6 @@
 
 typedef IWineD3D* (WINAPI *fnWineDirect3DCreate)(UINT, UINT, IUnknown *);
 
-static HMODULE hWineD3D = (HMODULE) -1;
 static fnWineDirect3DCreate pWineDirect3DCreate;
 
 WINE_DEFAULT_DEBUG_CHANNEL(ddraw);
@@ -72,6 +71,31 @@ CRITICAL_SECTION ddraw_cs = { &ddraw_cs_debug, -1, 0, 0, 0, 0 };
 /* value of ForceRefreshRate */
 DWORD force_refresh_rate = 0;
 
+/*
+ * Helper Function for DDRAW_Create and DirectDrawCreateClipper for
+ * lazy loading of the Wine D3D driver.
+ *
+ * Returns
+ *  TRUE on success
+ *  FALSE on failure.
+ */
+
+BOOL LoadWineD3D(void)
+{
+    static HMODULE hWineD3D = (HMODULE) -1;
+    if (hWineD3D == (HMODULE) -1)
+    {
+        hWineD3D = LoadLibraryA("wined3d");
+        if (hWineD3D)
+        {
+            pWineDirect3DCreate = (fnWineDirect3DCreate) GetProcAddress(hWineD3D, "WineDirect3DCreate");
+            pWineDirect3DCreateClipper = (fnWineDirect3DCreateClipper) GetProcAddress(hWineD3D, "WineDirect3DCreateClipper");
+            return TRUE;
+        }
+    }
+    return hWineD3D != NULL;
+}
+
 /***********************************************************************
  *
  * Helper function for DirectDrawCreate and friends
@@ -171,17 +195,7 @@ DDRAW_Create(const GUID *guid,
     This->orig_width = GetSystemMetrics(SM_CXSCREEN);
     This->orig_height = GetSystemMetrics(SM_CYSCREEN);
 
-    if (hWineD3D == (HMODULE) -1)
-    {
-        hWineD3D = LoadLibraryA("wined3d");
-        if (hWineD3D)
-        {
-            pWineDirect3DCreate = (fnWineDirect3DCreate) GetProcAddress(hWineD3D, "WineDirect3DCreate");
-            pWineDirect3DCreateClipper = (fnWineDirect3DCreateClipper) GetProcAddress(hWineD3D, "WineDirect3DCreateClipper");
-        }
-    }
-
-    if (!hWineD3D)
+    if (!LoadWineD3D())
     {
         ERR("Couldn't load WineD3D - OpenGL libs not present?\n");
         hr = DDERR_NODIRECTDRAWSUPPORT;