From 9cae851aec88f74297e85c6cc92d619f438e797d Mon Sep 17 00:00:00 2001
From: Gregor Brunmar <gbrunmar.ros@gmail.com>
Date: Fri, 14 Dec 2007 07:13:21 +0000
Subject: [PATCH] * Added helper function to read Direct3D registry properties
 * Started implementing Direct3DCreate9

svn path=/trunk/; revision=31206
---
 reactos/dll/directx/d3d9/d3d9.c         | 35 ++++++++++++++++++++++++-
 reactos/dll/directx/d3d9/d3d9.rbuild    |  5 ++++
 reactos/dll/directx/d3d9/d3d9_helpers.c | 34 ++++++++++++++++++++++++
 reactos/dll/directx/d3d9/d3d9_helpers.h | 11 ++++++++
 reactos/dll/directx/d3d9/d3d9_private.h | 12 ++++++++-
 5 files changed, 95 insertions(+), 2 deletions(-)
 create mode 100644 reactos/dll/directx/d3d9/d3d9_helpers.c
 create mode 100644 reactos/dll/directx/d3d9/d3d9_helpers.h

diff --git a/reactos/dll/directx/d3d9/d3d9.c b/reactos/dll/directx/d3d9/d3d9.c
index e64714070a7..9fbee835621 100644
--- a/reactos/dll/directx/d3d9/d3d9.c
+++ b/reactos/dll/directx/d3d9/d3d9.c
@@ -1,5 +1,15 @@
+/*
+ * COPYRIGHT:       See COPYING in the top level directory
+ * PROJECT:         ReactOS ReactX
+ * FILE:            dll/directx/d3d9/d3d9.c
+ * PURPOSE:         d3d9.dll implementation
+ * PROGRAMERS:      Magnus Olsen <greatlrd (at) reactos (dot) org>
+ *                  Gregor Brunmar <gregor (dot) brunmar (at) home (dot) se>
+ */
+
 #include <windows.h>
 #include "d3d9_private.h"
+#include "d3d9_helpers.h"
 
 #include <debug.h>
 
@@ -41,8 +51,31 @@ HRESULT DebugSetMute(DWORD dw1)
 DLLAPI
 IDirect3D9* WINAPI Direct3DCreate9(UINT SDKVersion)
 {
+    HINSTANCE hDebugDll;
+    DWORD LoadDebugDll;
+    DWORD LoadDebugDllSize;
+    LPDIRECT3D9 D3D9Obj = 0;
+    LPDIRECT3DCREATE9 DebugDirect3DCreate9 = 0;
+
     UNIMPLEMENTED
-    return 0;
+
+    LoadDebugDllSize = sizeof(LoadDebugDll);
+    if (ReadRegistryValue(REG_DWORD, "LoadDebugRuntime", (LPBYTE)&LoadDebugDll, &LoadDebugDllSize))
+    {
+        if (0 != LoadDebugDll)
+        {
+            hDebugDll = LoadLibrary("d3d9d.dll");
+
+            if (0 != hDebugDll)
+            {
+                DebugDirect3DCreate9 = (LPDIRECT3DCREATE9)GetProcAddress(hDebugDll, "Direct3DCreate9");
+
+                D3D9Obj = DebugDirect3DCreate9(SDKVersion);
+            }
+        }
+    }
+
+    return D3D9Obj;
 }
 
 BOOL APIENTRY DllMain(HANDLE hModule, DWORD ul_reason_for_call, LPVOID lpReserved)
diff --git a/reactos/dll/directx/d3d9/d3d9.rbuild b/reactos/dll/directx/d3d9/d3d9.rbuild
index cf23c5445b2..25cc7133e0e 100644
--- a/reactos/dll/directx/d3d9/d3d9.rbuild
+++ b/reactos/dll/directx/d3d9/d3d9.rbuild
@@ -2,6 +2,11 @@
 <!DOCTYPE module SYSTEM "../../../tools/rbuild/project.dtd">
 <module name="d3d9" type="win32dll" entrypoint="0" installbase="system32" installname="d3d9.dll">
 	<importlibrary definition="d3d9.def" />
+
+	<library>advapi32</library>
+	<library>kernel32</library>
+
 	<file>d3d9.c</file>
+	<file>d3d9_helpers.c</file>
 	<file>d3d9.rc</file>
 </module>
diff --git a/reactos/dll/directx/d3d9/d3d9_helpers.c b/reactos/dll/directx/d3d9/d3d9_helpers.c
new file mode 100644
index 00000000000..25925984a93
--- /dev/null
+++ b/reactos/dll/directx/d3d9/d3d9_helpers.c
@@ -0,0 +1,34 @@
+/*
+ * COPYRIGHT:       See COPYING in the top level directory
+ * PROJECT:         ReactOS ReactX
+ * FILE:            dll/directx/d3d9/d3d9_helpers.c
+ * PURPOSE:         d3d9.dll helper functions
+ * PROGRAMERS:      Gregor Brunmar <gregor (dot) brunmar (at) home (dot) se>
+ */
+
+#include "d3d9_helpers.h"
+
+
+static LPCSTR D3dDebugRegPath = "Software\\Microsoft\\Direct3D";
+
+BOOL ReadRegistryValue(IN DWORD ValueType, IN LPCSTR ValueName, OUT LPBYTE DataBuffer, IN OUT LPDWORD DataBufferSize)
+{
+    HKEY hKey;
+    DWORD Type;
+    LONG Ret;
+
+    if (ERROR_SUCCESS != RegOpenKeyEx(HKEY_LOCAL_MACHINE, D3dDebugRegPath, 0, KEY_QUERY_VALUE, &hKey))
+        return FALSE;
+
+    Ret = RegQueryValueEx(hKey, ValueName, 0, &Type, DataBuffer, DataBufferSize);
+
+    RegCloseKey(hKey);
+
+    if (ERROR_SUCCESS != Ret)
+        return FALSE;
+
+    if (Type != ValueType)
+        return FALSE;
+
+    return TRUE;
+}
diff --git a/reactos/dll/directx/d3d9/d3d9_helpers.h b/reactos/dll/directx/d3d9/d3d9_helpers.h
new file mode 100644
index 00000000000..f17e818ee3a
--- /dev/null
+++ b/reactos/dll/directx/d3d9/d3d9_helpers.h
@@ -0,0 +1,11 @@
+/*
+ * COPYRIGHT:       See COPYING in the top level directory
+ * PROJECT:         ReactOS ReactX
+ * FILE:            dll/directx/d3d9/d3d9_helpers.h
+ * PURPOSE:         d3d9.dll helper functions
+ * PROGRAMERS:      Gregor Brunmar <gregor (dot) brunmar (at) home (dot) se>
+ */
+
+#include <windows.h>
+
+BOOL ReadRegistryValue(IN DWORD ValueType, IN LPCSTR ValueName, OUT LPBYTE DataBuffer, IN OUT LPDWORD DataBufferSize);
diff --git a/reactos/dll/directx/d3d9/d3d9_private.h b/reactos/dll/directx/d3d9/d3d9_private.h
index 6c36eb85d30..af30eee55fc 100644
--- a/reactos/dll/directx/d3d9/d3d9_private.h
+++ b/reactos/dll/directx/d3d9/d3d9_private.h
@@ -1,8 +1,18 @@
+/*
+ * COPYRIGHT:       See COPYING in the top level directory
+ * PROJECT:         ReactOS ReactX
+ * FILE:            dll/directx/d3d9/d3d9_helpers.c
+ * PURPOSE:         d3d9.dll helper functions
+ * PROGRAMERS:      Gregor Brunmar <gregor (dot) brunmar (at) home (dot) se>
+ */
+
 #include <windows.h>
 #include <d3d9.h>
 
 #define DLLAPI __declspec(dllexport)
 
+typedef IDirect3D9* WINAPI (*LPDIRECT3DCREATE9)(UINT);
+
 struct _tagDIRECTD3D9_INT_
 {
 /* 0x0000 */    LPVOID lpVtbl; /* LPDIRECTD3D9 functoions table */
@@ -11,7 +21,7 @@ struct _tagDIRECTD3D9_INT_
 /* 0x0020 */    DWORD dwProcessId; 
 /* 0x0024 */    struct _tagDIRECTD3D9_INT_ * lpInt; 
 /* 0x0028 */    DWORD dwIntRefCnt;      /* Increases and decreases by AddRef() and Release() */
-/* 0x002c */    DWORD unknown000011;      /* 0x00000001 - Probably AdapterIndex */
+/* 0x002c */    DWORD unknown000011;    /* 0x00000001 - Probably AdapterIndex */
 /* 0x0030 */    GUID DisplayGuid;       /*? Always {67685559-3106-11D0-B971-00AA00342F9F} ? */
 /* 0x0040 */    CHAR DeviceName[16];
 /* 0x0050 */    DWORD unknown000020; 
-- 
2.17.1