From 52d59718c72049649d95518fe8a5b007c8cb6c94 Mon Sep 17 00:00:00 2001
From: Roderick Colenbrander <thunderbird2k@gmx.net>
Date: Sun, 23 Nov 2008 22:33:29 +0100
Subject: [PATCH] wined3d: Add registry key for overriding pci device id.

---
 dlls/wined3d/directx.c         |  6 ++++++
 dlls/wined3d/wined3d_main.c    | 27 ++++++++++++++++++++++++++-
 dlls/wined3d/wined3d_private.h |  3 +++
 3 files changed, 35 insertions(+), 1 deletion(-)

diff --git a/dlls/wined3d/directx.c b/dlls/wined3d/directx.c
index e096c86972..8b6317305f 100644
--- a/dlls/wined3d/directx.c
+++ b/dlls/wined3d/directx.c
@@ -1669,6 +1669,12 @@ static HRESULT WINAPI IWineD3DImpl_GetAdapterIdentifier(IWineD3D *iface, UINT Ad
     *(pIdentifier->Revision) = 0;
     *pIdentifier->DeviceIdentifier = IID_D3DDEVICE_D3DUID;
 
+    if(wined3d_settings.pci_device_id != PCI_DEVICE_NONE)
+    {
+        TRACE_(d3d_caps)("Overriding pci device id with: %x\n", wined3d_settings.pci_device_id);
+        *(pIdentifier->DeviceId) = wined3d_settings.pci_device_id;
+    }
+
     if (Flags & WINED3DENUM_NO_WHQL_LEVEL) {
         *(pIdentifier->WHQLLevel) = 0;
     } else {
diff --git a/dlls/wined3d/wined3d_main.c b/dlls/wined3d/wined3d_main.c
index fa1d0284f6..3175c3d7bf 100644
--- a/dlls/wined3d/wined3d_main.c
+++ b/dlls/wined3d/wined3d_main.c
@@ -43,6 +43,7 @@ wined3d_settings_t wined3d_settings =
     TRUE,           /* Use of GLSL enabled by default */
     ORM_BACKBUFFER, /* Use the backbuffer to do offscreen rendering */
     RTL_AUTO,       /* Automatically determine best locking method */
+    PCI_DEVICE_NONE,/* PCI Device ID */
     0,              /* The default of memory is set in FillGLCaps */
     NULL,           /* No wine logo by default */
     FALSE           /* Disable multisampling for now due to Nvidia driver bugs which happens for some users */
@@ -77,6 +78,15 @@ static inline DWORD get_config_key(HKEY defkey, HKEY appkey, const char* name, c
     return ERROR_FILE_NOT_FOUND;
 }
 
+static inline DWORD get_config_key_dword(HKEY defkey, HKEY appkey, const char* name, DWORD *data)
+{
+    DWORD type;
+    DWORD size = sizeof(DWORD);
+    if (0 != appkey && !RegQueryValueExA( appkey, name, 0, &type, (LPBYTE) data, &size ) && (type == REG_DWORD)) return 0;
+    if (0 != defkey && !RegQueryValueExA( defkey, name, 0, &type, (LPBYTE) data, &size ) && (type == REG_DWORD)) return 0;
+    return ERROR_FILE_NOT_FOUND;
+}
+
 static void wined3d_do_nothing(void)
 {
 }
@@ -92,7 +102,7 @@ BOOL WINAPI DllMain(HINSTANCE hInstDLL, DWORD fdwReason, LPVOID lpv)
        DWORD size = sizeof(buffer);
        HKEY hkey = 0;
        HKEY appkey = 0;
-       DWORD len;
+       DWORD len, tmpvalue;
        WNDCLASSA wc;
 
        /* We need our own window class for a fake window which we use to retrieve GL capabilities */
@@ -238,6 +248,21 @@ BOOL WINAPI DllMain(HINSTANCE hInstDLL, DWORD fdwReason, LPVOID lpv)
                     wined3d_settings.rendertargetlock_mode = RTL_TEXTEX;
                 }
             }
+            if ( !get_config_key_dword( hkey, appkey, "VideoPciDeviceID", &tmpvalue) )
+            {
+                int pci_device_id = tmpvalue;
+
+                /* A pci device id is 16-bit */
+                if(pci_device_id > 0xffff)
+                {
+                    ERR("Invalid value for VideoPciDeviceID. The value should be smaller or equal to 65535 or 0xffff\n");
+                }
+                else
+                {
+                    TRACE("Using PCI Device ID %04x\n", pci_device_id);
+                    wined3d_settings.pci_device_id = pci_device_id;
+                }
+            }
             if ( !get_config_key( hkey, appkey, "VideoMemorySize", buffer, size) )
             {
                 int TmpVideoMemorySize = atoi(buffer);
diff --git a/dlls/wined3d/wined3d_private.h b/dlls/wined3d/wined3d_private.h
index fb05ec0d7a..0e8fe52bb2 100644
--- a/dlls/wined3d/wined3d_private.h
+++ b/dlls/wined3d/wined3d_private.h
@@ -185,6 +185,8 @@ static inline float float_16_to_32(const unsigned short *in) {
 #define RTL_TEXDRAW    3
 #define RTL_TEXTEX     4
 
+#define PCI_DEVICE_NONE 0xffff /* e.g. 0x14f for a Geforce6200 */
+
 /* NOTE: When adding fields to this structure, make sure to update the default
  * values in wined3d_main.c as well. */
 typedef struct wined3d_settings_s {
@@ -198,6 +200,7 @@ typedef struct wined3d_settings_s {
   BOOL glslRequested;
   int offscreen_rendering_mode;
   int rendertargetlock_mode;
+  unsigned short pci_device_id;
 /* Memory tracking and object counting */
   unsigned int emulated_textureram;
   char *logo;