wine/dlls/dxdiagn/provider.c

/* 
 * IDxDiagProvider Implementation
 * 
 * Copyright 2004-2005 Raphael Junqueira
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
 *
 */

#include "config.h"

#define COBJMACROS
#define NONAMELESSUNION
#define NONAMELESSSTRUCT
#include "dxdiag_private.h"
#include "wine/unicode.h"
#include "winver.h"
#include "objidl.h"
#include "dshow.h"
#include "vfw.h"
#include "mmddk.h"
#include "ddraw.h"
#include "d3d9.h"
#include "strmif.h"
#include "initguid.h"
#include "fil_data.h"

#include "wine/debug.h"

WINE_DEFAULT_DEBUG_CHANNEL(dxdiag);

static HRESULT DXDiag_InitRootDXDiagContainer(IDxDiagContainer* pRootCont, IDxDiagProvider *pProv);

static HRESULT build_information_tree(IDxDiagContainerImpl_Container **pinfo_root);
static void free_information_tree(IDxDiagContainerImpl_Container *node);

/* IDxDiagProvider IUnknown parts follow: */
static HRESULT WINAPI IDxDiagProviderImpl_QueryInterface(PDXDIAGPROVIDER iface, REFIID riid, LPVOID *ppobj)
{
    IDxDiagProviderImpl *This = (IDxDiagProviderImpl *)iface;

    if (!ppobj) return E_INVALIDARG;

    if (IsEqualGUID(riid, &IID_IUnknown)
        || IsEqualGUID(riid, &IID_IDxDiagProvider)) {
        IUnknown_AddRef(iface);
        *ppobj = This;
        return S_OK;
    }

    WARN("(%p)->(%s,%p),not found\n",This,debugstr_guid(riid),ppobj);
    *ppobj = NULL;
    return E_NOINTERFACE;
}

static ULONG WINAPI IDxDiagProviderImpl_AddRef(PDXDIAGPROVIDER iface) {
    IDxDiagProviderImpl *This = (IDxDiagProviderImpl *)iface;
    ULONG refCount = InterlockedIncrement(&This->ref);

    TRACE("(%p)->(ref before=%u)\n", This, refCount - 1);

    DXDIAGN_LockModule();

    return refCount;
}

static ULONG WINAPI IDxDiagProviderImpl_Release(PDXDIAGPROVIDER iface) {
    IDxDiagProviderImpl *This = (IDxDiagProviderImpl *)iface;
    ULONG refCount = InterlockedDecrement(&This->ref);

    TRACE("(%p)->(ref before=%u)\n", This, refCount + 1);

    if (!refCount) {
        free_information_tree(This->info_root);
        HeapFree(GetProcessHeap(), 0, This);
    }

    DXDIAGN_UnlockModule();
    
    return refCount;
}

/* IDxDiagProvider Interface follow: */
static HRESULT WINAPI IDxDiagProviderImpl_Initialize(PDXDIAGPROVIDER iface, DXDIAG_INIT_PARAMS* pParams) {
    IDxDiagProviderImpl *This = (IDxDiagProviderImpl *)iface;
    HRESULT hr;

    TRACE("(%p,%p)\n", iface, pParams);

    if (NULL == pParams) {
      return E_POINTER;
    }
    if (pParams->dwSize != sizeof(DXDIAG_INIT_PARAMS) ||
        pParams->dwDxDiagHeaderVersion != DXDIAG_DX9_SDK_VERSION) {
      return E_INVALIDARG;
    }

    if (!This->info_root)
    {
        hr = build_information_tree(&This->info_root);
        if (FAILED(hr))
            return hr;
    }

    This->init = TRUE;
    memcpy(&This->params, pParams, pParams->dwSize);
    return S_OK;
}

static HRESULT WINAPI IDxDiagProviderImpl_GetRootContainer(PDXDIAGPROVIDER iface, IDxDiagContainer** ppInstance) {
  HRESULT hr;
  IDxDiagProviderImpl *This = (IDxDiagProviderImpl *)iface;
  IDxDiagContainer *root;

  TRACE("(%p,%p)\n", iface, ppInstance);

  if (FALSE == This->init) {
    return CO_E_NOTINITIALIZED;
  }

  hr = DXDiag_CreateDXDiagContainer(&IID_IDxDiagContainer, (IDxDiagProvider *)This, (void **)&root);
  if (FAILED(hr)) {
    return hr;
  }

  DXDiag_InitRootDXDiagContainer(root, (IDxDiagProvider *)This);

  return IDxDiagContainerImpl_QueryInterface(root, &IID_IDxDiagContainer, (void **)ppInstance);
}

static const IDxDiagProviderVtbl DxDiagProvider_Vtbl =
{
    IDxDiagProviderImpl_QueryInterface,
    IDxDiagProviderImpl_AddRef,
    IDxDiagProviderImpl_Release,
    IDxDiagProviderImpl_Initialize,
    IDxDiagProviderImpl_GetRootContainer
};

HRESULT DXDiag_CreateDXDiagProvider(LPCLASSFACTORY iface, LPUNKNOWN punkOuter, REFIID riid, LPVOID *ppobj) {
  IDxDiagProviderImpl* provider;

  TRACE("(%p, %s, %p)\n", punkOuter, debugstr_guid(riid), ppobj);

  *ppobj = NULL;
  if (punkOuter) return CLASS_E_NOAGGREGATION;

  provider = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDxDiagProviderImpl));
  if (NULL == provider) return E_OUTOFMEMORY;
  provider->lpVtbl = &DxDiagProvider_Vtbl;
  provider->ref = 0; /* will be inited with QueryInterface */
  return IDxDiagProviderImpl_QueryInterface ((PDXDIAGPROVIDER)provider, riid, ppobj);
} 

static inline HRESULT add_prop_str( IDxDiagContainer* cont, LPCWSTR prop, LPCWSTR str )
{
    HRESULT hr;
    VARIANT var;

    V_VT( &var ) = VT_BSTR;
    V_BSTR( &var ) = SysAllocString( str );
    hr = IDxDiagContainerImpl_AddProp( cont, prop, &var );
    VariantClear( &var );

    return hr;
}

static inline HRESULT add_prop_ui4( IDxDiagContainer* cont, LPCWSTR prop, DWORD data )
{
    VARIANT var;

    V_VT( &var ) = VT_UI4;
    V_UI4( &var ) = data;
    return IDxDiagContainerImpl_AddProp( cont, prop, &var );
}

static inline HRESULT add_prop_bool( IDxDiagContainer* cont, LPCWSTR prop, BOOL data )
{
    VARIANT var;

    V_VT( &var ) = VT_BOOL;
    V_BOOL( &var ) = data;
    return IDxDiagContainerImpl_AddProp( cont, prop, &var );
}

static inline HRESULT add_prop_ull_as_str( IDxDiagContainer* cont, LPCWSTR prop, ULONGLONG data )
{
    HRESULT hr;
    VARIANT var;

    V_VT( &var ) = VT_UI8;
    V_UI8( &var ) = data;
    VariantChangeType( &var, &var, 0, VT_BSTR );
    hr = IDxDiagContainerImpl_AddProp( cont, prop, &var );
    VariantClear( &var );

    return hr;
}

static void get_display_device_id(WCHAR *szIdentifierBuffer)
{
    static const WCHAR szNA[] = {'n','/','a',0};

    HRESULT hr = E_FAIL;

    HMODULE                 d3d9_handle;
    IDirect3D9             *(WINAPI *pDirect3DCreate9)(UINT) = NULL;
    IDirect3D9             *pD3d = NULL;
    D3DADAPTER_IDENTIFIER9  adapter_ident;

    /* Retrieves the display device identifier from the d3d9 implementation. */
    d3d9_handle = LoadLibraryA("d3d9.dll");
    if(d3d9_handle)
        pDirect3DCreate9 = (void *)GetProcAddress(d3d9_handle, "Direct3DCreate9");
    if(pDirect3DCreate9)
        pD3d = pDirect3DCreate9(D3D_SDK_VERSION);
    if(pD3d)
        hr = IDirect3D9_GetAdapterIdentifier(pD3d, D3DADAPTER_DEFAULT, 0, &adapter_ident);
    if(SUCCEEDED(hr)) {
        StringFromGUID2(&adapter_ident.DeviceIdentifier, szIdentifierBuffer, 39);
    } else {
        memcpy(szIdentifierBuffer, szNA, sizeof(szNA));
    }

    if (pD3d)
        IDirect3D9_Release(pD3d);
    if (d3d9_handle)
        FreeLibrary(d3d9_handle);
}

/**
 * @param szFilePath: usually GetSystemDirectoryW
 * @param szFileName: name of the dll without path
 */
static HRESULT DXDiag_AddFileDescContainer(IDxDiagContainer* pSubCont, const WCHAR* szFilePath, const WCHAR* szFileName) {
  HRESULT hr = S_OK;
  /**/
  static const WCHAR szSlashSep[] = {'\\',0};
  static const WCHAR szPath[] = {'s','z','P','a','t','h',0};
  static const WCHAR szName[] = {'s','z','N','a','m','e',0};
  static const WCHAR szVersion[] = {'s','z','V','e','r','s','i','o','n',0};
  static const WCHAR szAttributes[] = {'s','z','A','t','t','r','i','b','u','t','e','s',0};
  static const WCHAR szLanguageEnglish[] = {'s','z','L','a','n','g','u','a','g','e','E','n','g','l','i','s','h',0};
  static const WCHAR dwFileTimeHigh[] = {'d','w','F','i','l','e','T','i','m','e','H','i','g','h',0};
  static const WCHAR dwFileTimeLow[] = {'d','w','F','i','l','e','T','i','m','e','L','o','w',0};
  static const WCHAR bBeta[] = {'b','B','e','t','a',0};
  static const WCHAR bDebug[] = {'b','D','e','b','u','g',0};
  static const WCHAR bExists[] = {'b','E','x','i','s','t','s',0};
  /** values */
  static const WCHAR szFinal_Retail_v[] = {'F','i','n','a','l',' ','R','e','t','a','i','l',0};
  static const WCHAR szEnglish_v[] = {'E','n','g','l','i','s','h',0};
  static const WCHAR szVersionFormat[] = {'%','u','.','%','0','2','u','.','%','0','4','u','.','%','0','4','u',0};

  WCHAR szFile[512];
  WCHAR szVersion_v[1024];
  DWORD retval, hdl;
  LPVOID pVersionInfo;
  BOOL boolret;
  UINT uiLength;
  VS_FIXEDFILEINFO* pFileInfo;

  TRACE("(%p,%s)\n", pSubCont, debugstr_w(szFileName));

  lstrcpyW(szFile, szFilePath);
  lstrcatW(szFile, szSlashSep);
  lstrcatW(szFile, szFileName);

  retval = GetFileVersionInfoSizeW(szFile, &hdl);
  pVersionInfo = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, retval);
  boolret = GetFileVersionInfoW(szFile, 0, retval, pVersionInfo);
  boolret = VerQueryValueW(pVersionInfo, szSlashSep, (LPVOID) &pFileInfo, &uiLength);

  add_prop_str(pSubCont, szPath, szFile);
  add_prop_str(pSubCont, szName, szFileName);
  add_prop_bool(pSubCont, bExists, boolret);

  if (boolret) {
    snprintfW(szVersion_v, sizeof(szVersion_v)/sizeof(szVersion_v[0]),
	      szVersionFormat,
	      HIWORD(pFileInfo->dwFileVersionMS), 
	      LOWORD(pFileInfo->dwFileVersionMS),
	      HIWORD(pFileInfo->dwFileVersionLS),
	      LOWORD(pFileInfo->dwFileVersionLS));

    TRACE("Found version as (%s)\n", debugstr_w(szVersion_v));

    add_prop_str(pSubCont, szVersion,         szVersion_v);
    add_prop_str(pSubCont, szAttributes,      szFinal_Retail_v);
    add_prop_str(pSubCont, szLanguageEnglish, szEnglish_v);
    add_prop_ui4(pSubCont, dwFileTimeHigh,    pFileInfo->dwFileDateMS);
    add_prop_ui4(pSubCont, dwFileTimeLow,     pFileInfo->dwFileDateLS);
    add_prop_bool(pSubCont, bBeta,  0 != ((pFileInfo->dwFileFlags & pFileInfo->dwFileFlagsMask) & VS_FF_PRERELEASE));
    add_prop_bool(pSubCont, bDebug, 0 != ((pFileInfo->dwFileFlags & pFileInfo->dwFileFlagsMask) & VS_FF_DEBUG));
  }

  HeapFree(GetProcessHeap(), 0, pVersionInfo);

  return hr;
}

static HRESULT DXDiag_InitDXDiagSystemInfoContainer(IDxDiagContainer* pSubCont, IDxDiagProvider *pProv) {
  static const WCHAR dwDirectXVersionMajor[] = {'d','w','D','i','r','e','c','t','X','V','e','r','s','i','o','n','M','a','j','o','r',0};
  static const WCHAR dwDirectXVersionMinor[] = {'d','w','D','i','r','e','c','t','X','V','e','r','s','i','o','n','M','i','n','o','r',0};
  static const WCHAR szDirectXVersionLetter[] = {'s','z','D','i','r','e','c','t','X','V','e','r','s','i','o','n','L','e','t','t','e','r',0};
  static const WCHAR szDirectXVersionLetter_v[] = {'c',0};
  static const WCHAR bDebug[] = {'b','D','e','b','u','g',0};
  static const WCHAR szDirectXVersionEnglish[] = {'s','z','D','i','r','e','c','t','X','V','e','r','s','i','o','n','E','n','g','l','i','s','h',0};
  static const WCHAR szDirectXVersionEnglish_v[] = {'4','.','0','9','.','0','0','0','0','.','0','9','0','4',0};
  static const WCHAR szDirectXVersionLongEnglish[] = {'s','z','D','i','r','e','c','t','X','V','e','r','s','i','o','n','L','o','n','g','E','n','g','l','i','s','h',0};
  static const WCHAR szDirectXVersionLongEnglish_v[] = {'=',' ','"','D','i','r','e','c','t','X',' ','9','.','0','c',' ','(','4','.','0','9','.','0','0','0','0','.','0','9','0','4',')',0};
  static const WCHAR ullPhysicalMemory[] = {'u','l','l','P','h','y','s','i','c','a','l','M','e','m','o','r','y',0};
  static const WCHAR ullUsedPageFile[]   = {'u','l','l','U','s','e','d','P','a','g','e','F','i','l','e',0};
  static const WCHAR ullAvailPageFile[]  = {'u','l','l','A','v','a','i','l','P','a','g','e','F','i','l','e',0};
  /*static const WCHAR szDxDiagVersion[] = {'s','z','D','x','D','i','a','g','V','e','r','s','i','o','n',0};*/
  static const WCHAR szWindowsDir[] = {'s','z','W','i','n','d','o','w','s','D','i','r',0};
  static const WCHAR dwOSMajorVersion[] = {'d','w','O','S','M','a','j','o','r','V','e','r','s','i','o','n',0};
  static const WCHAR dwOSMinorVersion[] = {'d','w','O','S','M','i','n','o','r','V','e','r','s','i','o','n',0};
  static const WCHAR dwOSBuildNumber[] = {'d','w','O','S','B','u','i','l','d','N','u','m','b','e','r',0};
  static const WCHAR dwOSPlatformID[] = {'d','w','O','S','P','l','a','t','f','o','r','m','I','D',0};
  static const WCHAR szCSDVersion[] = {'s','z','C','S','D','V','e','r','s','i','o','n',0};
  MEMORYSTATUSEX msex;
  OSVERSIONINFOW info;
  WCHAR buffer[MAX_PATH];

  add_prop_ui4(pSubCont, dwDirectXVersionMajor, 9);
  add_prop_ui4(pSubCont, dwDirectXVersionMinor, 0);
  add_prop_str(pSubCont, szDirectXVersionLetter, szDirectXVersionLetter_v);
  add_prop_str(pSubCont, szDirectXVersionEnglish, szDirectXVersionEnglish_v);
  add_prop_str(pSubCont, szDirectXVersionLongEnglish, szDirectXVersionLongEnglish_v);
  add_prop_bool(pSubCont, bDebug, FALSE);

  msex.dwLength = sizeof(msex);
  GlobalMemoryStatusEx( &msex );
  add_prop_ull_as_str(pSubCont, ullPhysicalMemory, msex.ullTotalPhys);
  add_prop_ull_as_str(pSubCont, ullUsedPageFile, msex.ullTotalPageFile - msex.ullAvailPageFile);
  add_prop_ull_as_str(pSubCont, ullAvailPageFile, msex.ullAvailPageFile);

  info.dwOSVersionInfoSize = sizeof(info);
  GetVersionExW( &info );
  add_prop_ui4(pSubCont, dwOSMajorVersion, info.dwMajorVersion);
  add_prop_ui4(pSubCont, dwOSMinorVersion, info.dwMinorVersion);
  add_prop_ui4(pSubCont, dwOSBuildNumber,  info.dwBuildNumber);
  add_prop_ui4(pSubCont, dwOSPlatformID,   info.dwPlatformId);
  add_prop_str(pSubCont, szCSDVersion,     info.szCSDVersion);

  GetWindowsDirectoryW(buffer, MAX_PATH);
  add_prop_str(pSubCont, szWindowsDir, buffer);

  return S_OK;
}

static HRESULT DXDiag_InitDXDiagSystemDevicesContainer(IDxDiagContainer* pSubCont, IDxDiagProvider *pProv) {
  HRESULT hr = S_OK;
  /*
  static const WCHAR szDescription[] = {'s','z','D','e','s','c','r','i','p','t','i','o','n',0};
  static const WCHAR szDeviceID[] = {'s','z','D','e','v','i','c','e','I','D',0};

  static const WCHAR szDrivers[] = {'s','z','D','r','i','v','e','r','s',0};

  VARIANT v;
  IDxDiagContainer* pDeviceSubCont = NULL;
  IDxDiagContainer* pDriversCont = NULL;

  hr = DXDiag_CreateDXDiagContainer(&IID_IDxDiagContainer, &pDeviceSubCont);
  if (FAILED(hr)) { return hr; }
  V_VT(pvarProp) = VT_BSTR; V_BSTR(pvarProp) = SysAllocString(property->psz);
  hr = IDxDiagContainerImpl_AddProp(pDeviceSubCont, szDescription, &v);
  VariantClear(&v);
  V_VT(pvarProp) = VT_BSTR; V_BSTR(pvarProp) = SysAllocString(property->psz);
  hr = IDxDiagContainerImpl_AddProp(pDeviceSubCont, szDeviceID, &v);
  VariantClear(&v);

  hr = IDxDiagContainerImpl_AddChildContainer(pSubCont, "", pDeviceSubCont);
  */

  /*
   * Drivers Cont contains Files Desc Containers
   */
  /*
  hr = DXDiag_CreateDXDiagContainer(&IID_IDxDiagContainer, &pDriversCont);
  if (FAILED(hr)) { return hr; }
  hr = IDxDiagContainerImpl_AddChildContainer(pDeviceSubCont, szDrivers, pDriversCont);

  */
  return hr;
}

static HRESULT DXDiag_InitDXDiagLogicalDisksContainer(IDxDiagContainer* pSubCont, IDxDiagProvider *pProv) {
  HRESULT hr = S_OK;
  /*
  static const WCHAR szDriveLetter[] = {'s','z','D','r','i','v','e','L','e','t','t','e','r',0};
  static const WCHAR szFreeSpace[] = {'s','z','F','r','e','e','S','p','a','c','e',0};
  static const WCHAR szMaxSpace[] = {'s','z','M','a','x','S','p','a','c','e',0};
  static const WCHAR szFileSystem[] = {'s','z','F','i','l','e','S','y','s','t','e','m',0};
  static const WCHAR szModel[] = {'s','z','M','o','d','e','l',0};
  static const WCHAR szPNPDeviceID[] = {'s','z','P','N','P','D','e','v','i','c','e','I','D',0};
  static const WCHAR dwHardDriveIndex[] = {'d','w','H','a','r','d','D','r','i','v','e','I','n','d','e','x',0};

  static const WCHAR szDrivers[] = {'s','z','D','r','i','v','e','r','s',0};
 
  VARIANT v;
  IDxDiagContainer* pDiskSubCont = NULL;
  IDxDiagContainer* pDriversCont = NULL;

  hr = DXDiag_CreateDXDiagContainer(&IID_IDxDiagContainer, &pDiskSubCont);
  if (FAILED(hr)) { return hr; }
  hr = IDxDiagContainerImpl_AddChildContainer(pSubCont, "" , pDiskSubCont);
  */
  
  /*
   * Drivers Cont contains Files Desc Containers
   */
  /*
  hr = DXDiag_CreateDXDiagContainer(&IID_IDxDiagContainer, &pDriversCont);
  if (FAILED(hr)) { return hr; }
  hr = IDxDiagContainerImpl_AddChildContainer(pDeviceSubCont, szDrivers, pDriversCont);
  */
  return hr;
}

static HRESULT DXDiag_InitDXDiagDirectXFilesContainer(IDxDiagContainer* pSubCont, IDxDiagProvider *pProv)
{
    HRESULT hr = S_OK;
    static const WCHAR dlls[][15] =
    {
        {'d','3','d','8','.','d','l','l',0},
        {'d','3','d','9','.','d','l','l',0},
        {'d','d','r','a','w','.','d','l','l',0},
        {'d','e','v','e','n','u','m','.','d','l','l',0},
        {'d','i','n','p','u','t','8','.','d','l','l',0},
        {'d','i','n','p','u','t','.','d','l','l',0},
        {'d','m','b','a','n','d','.','d','l','l',0},
        {'d','m','c','o','m','p','o','s','.','d','l','l',0},
        {'d','m','i','m','e','.','d','l','l',0},
        {'d','m','l','o','a','d','e','r','.','d','l','l',0},
        {'d','m','s','c','r','i','p','t','.','d','l','l',0},
        {'d','m','s','t','y','l','e','.','d','l','l',0},
        {'d','m','s','y','n','t','h','.','d','l','l',0},
        {'d','m','u','s','i','c','.','d','l','l',0},
        {'d','p','l','a','y','x','.','d','l','l',0},
        {'d','p','n','e','t','.','d','l','l',0},
        {'d','s','o','u','n','d','.','d','l','l',0},
        {'d','s','w','a','v','e','.','d','l','l',0},
        {'d','x','d','i','a','g','n','.','d','l','l',0},
        {'q','u','a','r','t','z','.','d','l','l',0}
    };
    WCHAR szFilePath[MAX_PATH];
    INT i;

    GetSystemDirectoryW(szFilePath, MAX_PATH);

    for (i = 0; i < sizeof(dlls) / sizeof(dlls[0]); i++)
    {
        static const WCHAR szFormat[] = {'%','d',0};
        WCHAR szFileID[5];
        IDxDiagContainer *pDXFileSubCont;

        snprintfW(szFileID, sizeof(szFileID)/sizeof(szFileID[0]), szFormat, i);

        hr = DXDiag_CreateDXDiagContainer(&IID_IDxDiagContainer, pProv, (void**) &pDXFileSubCont);
        if (FAILED(hr)) continue;

        if (FAILED(DXDiag_AddFileDescContainer(pDXFileSubCont, szFilePath, dlls[i])) ||
            FAILED(IDxDiagContainerImpl_AddChildContainer(pSubCont, szFileID, pDXFileSubCont)))
        {
            IUnknown_Release(pDXFileSubCont);
            continue;
        }
    }
    return hr;
}

static HRESULT DXDiag_InitDXDiagDisplayContainer(IDxDiagContainer* pSubCont, IDxDiagProvider *pProv)
{
    static const WCHAR szDescription[] = {'s','z','D','e','s','c','r','i','p','t','i','o','n',0};
    static const WCHAR szDeviceName[] = {'s','z','D','e','v','i','c','e','N','a','m','e',0};
    static const WCHAR szKeyDeviceID[] = {'s','z','K','e','y','D','e','v','i','c','e','I','D',0};
    static const WCHAR szKeyDeviceKey[] = {'s','z','K','e','y','D','e','v','i','c','e','K','e','y',0};
    static const WCHAR szVendorId[] = {'s','z','V','e','n','d','o','r','I','d',0};
    static const WCHAR szDeviceId[] = {'s','z','D','e','v','i','c','e','I','d',0};
    static const WCHAR szDeviceIdentifier[] = {'s','z','D','e','v','i','c','e','I','d','e','n','t','i','f','i','e','r',0};
    static const WCHAR dwWidth[] = {'d','w','W','i','d','t','h',0};
    static const WCHAR dwHeight[] = {'d','w','H','e','i','g','h','t',0};
    static const WCHAR dwBpp[] = {'d','w','B','p','p',0};
    static const WCHAR szDisplayMemoryLocalized[] = {'s','z','D','i','s','p','l','a','y','M','e','m','o','r','y','L','o','c','a','l','i','z','e','d',0};
    static const WCHAR szDisplayMemoryEnglish[] = {'s','z','D','i','s','p','l','a','y','M','e','m','o','r','y','E','n','g','l','i','s','h',0};

    static const WCHAR szAdapterID[] = {'0',0};
    static const WCHAR szEmpty[] = {0};

    HRESULT                 hr;
    IDxDiagContainer       *pDisplayAdapterSubCont = NULL;

    IDirectDraw7           *pDirectDraw;
    DDSCAPS2                dd_caps;
    DISPLAY_DEVICEW         disp_dev;
    DDSURFACEDESC2          surface_descr;
    DWORD                   tmp;
    WCHAR                   buffer[256];

    hr = DXDiag_CreateDXDiagContainer( &IID_IDxDiagContainer, pProv, (void**) &pDisplayAdapterSubCont );
    if (FAILED( hr )) return hr;
    hr = IDxDiagContainerImpl_AddChildContainer( pSubCont, szAdapterID, pDisplayAdapterSubCont );
    if (FAILED( hr )) return hr;

    disp_dev.cb = sizeof(disp_dev);
    if (EnumDisplayDevicesW( NULL, 0, &disp_dev, 0 ))
    {
        add_prop_str( pDisplayAdapterSubCont, szDeviceName, disp_dev.DeviceName );
        add_prop_str( pDisplayAdapterSubCont, szDescription, disp_dev.DeviceString );
    }

    hr = DirectDrawCreateEx( NULL, (LPVOID *)&pDirectDraw, &IID_IDirectDraw7, NULL);
    if (FAILED( hr )) return hr;

    dd_caps.dwCaps = DDSCAPS_LOCALVIDMEM | DDSCAPS_VIDEOMEMORY;
    dd_caps.dwCaps2 = dd_caps.dwCaps3 = dd_caps.dwCaps4 = 0;
    hr = IDirectDraw7_GetAvailableVidMem( pDirectDraw, &dd_caps, &tmp, NULL );
    if (SUCCEEDED(hr))
    {
        static const WCHAR mem_fmt[] = {'%','.','1','f',' ','M','B',0};

        snprintfW( buffer, sizeof(buffer)/sizeof(buffer[0]), mem_fmt, ((float)tmp) / 1000000.0 );
        add_prop_str( pDisplayAdapterSubCont, szDisplayMemoryLocalized, buffer );
        add_prop_str( pDisplayAdapterSubCont, szDisplayMemoryEnglish, buffer );
    }

    surface_descr.dwSize = sizeof(surface_descr);
    hr = IDirectDraw7_GetDisplayMode( pDirectDraw, &surface_descr );
    if (SUCCEEDED(hr))
    {
        if (surface_descr.dwFlags & DDSD_WIDTH)
            add_prop_ui4( pDisplayAdapterSubCont, dwWidth, surface_descr.dwWidth );
        if (surface_descr.dwFlags & DDSD_HEIGHT)
            add_prop_ui4( pDisplayAdapterSubCont, dwHeight, surface_descr.dwHeight );
        if (surface_descr.dwFlags & DDSD_PIXELFORMAT)
            add_prop_ui4( pDisplayAdapterSubCont, dwBpp, surface_descr.u4.ddpfPixelFormat.u1.dwRGBBitCount );
    }

    get_display_device_id( buffer );
    add_prop_str( pDisplayAdapterSubCont, szDeviceIdentifier, buffer );

    add_prop_str( pDisplayAdapterSubCont, szVendorId, szEmpty );
    add_prop_str( pDisplayAdapterSubCont, szDeviceId, szEmpty );
    add_prop_str( pDisplayAdapterSubCont, szKeyDeviceKey, szEmpty );
    add_prop_str( pDisplayAdapterSubCont, szKeyDeviceID, szEmpty );

    IUnknown_Release( pDirectDraw );
    return hr;
}

static HRESULT DXDiag_InitDXDiagDirectSoundContainer(IDxDiagContainer* pSubCont, IDxDiagProvider *pProv) {
  HRESULT hr = S_OK;
  static const WCHAR DxDiag_SoundDevices[] = {'D','x','D','i','a','g','_','S','o','u','n','d','D','e','v','i','c','e','s',0};
  static const WCHAR DxDiag_SoundCaptureDevices[] = {'D','x','D','i','a','g','_','S','o','u','n','d','C','a','p','t','u','r','e','D','e','v','i','c','e','s',0};
  IDxDiagContainer* pSubSubCont = NULL;

  hr = DXDiag_CreateDXDiagContainer(&IID_IDxDiagContainer, pProv, (void**) &pSubSubCont);
  if (FAILED(hr)) { return hr; }
  hr = IDxDiagContainerImpl_AddChildContainer(pSubCont, DxDiag_SoundDevices, pSubSubCont);

  hr = DXDiag_CreateDXDiagContainer(&IID_IDxDiagContainer, pProv, (void**) &pSubSubCont);
  if (FAILED(hr)) { return hr; }
  hr = IDxDiagContainerImpl_AddChildContainer(pSubCont, DxDiag_SoundCaptureDevices, pSubSubCont);

  return hr;
}

static HRESULT DXDiag_InitDXDiagDirectMusicContainer(IDxDiagContainer* pSubCont, IDxDiagProvider *pProv) {
  HRESULT hr = S_OK;
  return hr;
}

static HRESULT DXDiag_InitDXDiagDirectInputContainer(IDxDiagContainer* pSubCont, IDxDiagProvider *pProv) {
  HRESULT hr = S_OK;
  return hr;
}

static HRESULT DXDiag_InitDXDiagDirectPlayContainer(IDxDiagContainer* pSubCont, IDxDiagProvider *pProv) {
  HRESULT hr = S_OK;
  return hr;
}

static HRESULT DXDiag_InitDXDiagDirectShowFiltersContainer(IDxDiagContainer* pSubCont, IDxDiagProvider *pProv) {
  HRESULT hr = S_OK;
  static const WCHAR szName[] = {'s','z','N','a','m','e',0};
  static const WCHAR szVersionW[] = {'s','z','V','e','r','s','i','o','n',0};
  static const WCHAR szCatName[] = {'s','z','C','a','t','N','a','m','e',0};
  static const WCHAR ClsidCatW[] = {'C','l','s','i','d','C','a','t',0};
  static const WCHAR ClsidFilterW[] = {'C','l','s','i','d','F','i','l','t','e','r',0};
  static const WCHAR dwInputs[] = {'d','w','I','n','p','u','t','s',0};
  static const WCHAR dwOutputs[] = {'d','w','O','u','t','p','u','t','s',0};
  static const WCHAR dwMeritW[] = {'d','w','M','e','r','i','t',0};
  /*
  static const WCHAR szFileName[] = {'s','z','F','i','l','e','N','a','m','e',0};
  static const WCHAR szFileVersion[] = {'s','z','F','i','l','e','V','e','r','s','i','o','n',0};
  */
  VARIANT v;

  static const WCHAR wszClsidName[] = {'C','L','S','I','D',0};
  static const WCHAR wszFriendlyName[] = {'F','r','i','e','n','d','l','y','N','a','m','e',0};  
  static const WCHAR wszFilterDataName[] = {'F','i','l','t','e','r','D','a','t','a',0};

  static const WCHAR szVersionFormat[] = {'v','%','d',0};
  static const WCHAR szIdFormat[] = {'%','d',0};
  int i = 0;


  ICreateDevEnum* pCreateDevEnum = NULL;
  IEnumMoniker* pEmCat = NULL;
  IMoniker* pMCat = NULL;
  /** */
  hr = CoCreateInstance(&CLSID_SystemDeviceEnum, 
			NULL, 
			CLSCTX_INPROC_SERVER,
			&IID_ICreateDevEnum, 
			(void**) &pCreateDevEnum);
  if (FAILED(hr)) return hr; 
  
  hr = ICreateDevEnum_CreateClassEnumerator(pCreateDevEnum, &CLSID_ActiveMovieCategories, &pEmCat, 0);
  if (FAILED(hr)) goto out_show_filters; 

  VariantInit(&v);

  while (S_OK == IEnumMoniker_Next(pEmCat, 1, &pMCat, NULL)) {
    IPropertyBag* pPropBag = NULL;
    CLSID clsidCat; 
    hr = IMoniker_BindToStorage(pMCat, NULL, NULL, &IID_IPropertyBag, (void**) &pPropBag);
    if (SUCCEEDED(hr)) {
      WCHAR* wszCatName = NULL;
      WCHAR* wszCatClsid = NULL;

      hr = IPropertyBag_Read(pPropBag, wszFriendlyName, &v, 0);
      wszCatName = SysAllocString(V_BSTR(&v));
      VariantClear(&v);

      hr = IPropertyBag_Read(pPropBag, wszClsidName, &v, 0);
      wszCatClsid = SysAllocString(V_BSTR(&v));
      hr = CLSIDFromString(V_UNION(&v, bstrVal), &clsidCat);
      VariantClear(&v);

      /*
      hr = IPropertyBag_Read(pPropBag, wszMeritName, &v, 0);
      hr = IDxDiagContainerImpl_AddProp(pSubCont, dwMerit, &v);
      VariantClear(&v);
      */

      if (SUCCEEDED(hr)) {
	IEnumMoniker* pEnum = NULL;
	IMoniker* pMoniker = NULL;
        hr = ICreateDevEnum_CreateClassEnumerator(pCreateDevEnum, &clsidCat, &pEnum, 0);        
        TRACE("\tClassEnumerator for clsid(%s) pEnum(%p)\n", debugstr_guid(&clsidCat), pEnum);
        if (FAILED(hr) || pEnum == NULL) {
          goto class_enum_failed;
        }
        while (NULL != pEnum && S_OK == IEnumMoniker_Next(pEnum, 1, &pMoniker, NULL)) {          
	  IPropertyBag* pPropFilterBag = NULL;
          TRACE("\tIEnumMoniker_Next(%p, 1, %p)\n", pEnum, pMoniker);
	  hr = IMoniker_BindToStorage(pMoniker, NULL, NULL, &IID_IPropertyBag, (void**) &pPropFilterBag);
	  if (SUCCEEDED(hr)) {
	    LPBYTE pData = NULL;
	    DWORD dwNOutputs = 0;
	    DWORD dwNInputs = 0;
	    DWORD dwMerit = 0;
            WCHAR bufferW[10];
            IDxDiagContainer *pDShowSubCont = NULL;
            IFilterMapper2 *pFileMapper = NULL;
            IAMFilterData *pFilterData = NULL;

            snprintfW(bufferW, sizeof(bufferW)/sizeof(bufferW[0]), szIdFormat, i);
            if (FAILED(DXDiag_CreateDXDiagContainer(&IID_IDxDiagContainer, pProv, (void**) &pDShowSubCont)) ||
                FAILED(IDxDiagContainerImpl_AddChildContainer(pSubCont, bufferW, pDShowSubCont)))
            {
              IPropertyBag_Release(pPropFilterBag);
              if (pDShowSubCont) IUnknown_Release(pDShowSubCont);
              continue;
            }

            bufferW[0] = 0;
	    hr = IPropertyBag_Read(pPropFilterBag, wszFriendlyName, &v, 0);
	    hr = IDxDiagContainerImpl_AddProp(pDShowSubCont, szName, &v);
            TRACE("\tName:%s\n", debugstr_w(V_BSTR(&v)));
	    VariantClear(&v);

	    hr = IPropertyBag_Read(pPropFilterBag, wszClsidName, &v, 0);
            TRACE("\tClsid:%s\n", debugstr_w(V_BSTR(&v)));
	    hr = IDxDiagContainerImpl_AddProp(pDShowSubCont, ClsidFilterW, &v);
	    VariantClear(&v);

            hr = CoCreateInstance(&CLSID_FilterMapper2, NULL, CLSCTX_INPROC, &IID_IFilterMapper2,
                                  (LPVOID*)&pFileMapper);
            if (SUCCEEDED(hr) &&
                SUCCEEDED(IFilterMapper2_QueryInterface(pFileMapper, &IID_IAMFilterData, (void **)&pFilterData)))
            {
              DWORD array_size;
              REGFILTER2 *pRF;

              if (SUCCEEDED(IPropertyBag_Read(pPropFilterBag, wszFilterDataName, &v, NULL)) &&
                  SUCCEEDED(SafeArrayAccessData(V_UNION(&v, parray), (LPVOID*) &pData)))
              {
                ULONG j;
                array_size = V_UNION(&v, parray)->rgsabound->cElements;

                if (SUCCEEDED(IAMFilterData_ParseFilterData(pFilterData, pData, array_size, (BYTE **)&pRF)))
                {
                  snprintfW(bufferW, sizeof(bufferW)/sizeof(bufferW[0]), szVersionFormat, pRF->dwVersion);
                  if (pRF->dwVersion == 1)
                  {
                    for (j = 0; j < pRF->u.s.cPins; j++)
                      if (pRF->u.s.rgPins[j].bOutput)
                        dwNOutputs++;
                      else
                        dwNInputs++;
                  }
                  else if (pRF->dwVersion == 2)
                  {
                    for (j = 0; j < pRF->u.s1.cPins2; j++)
                      if (pRF->u.s1.rgPins2[j].dwFlags & REG_PINFLAG_B_OUTPUT)
                        dwNOutputs++;
                      else
                        dwNInputs++;
                  }

                  dwMerit = pRF->dwMerit;
                  CoTaskMemFree(pRF);
                }

                SafeArrayUnaccessData(V_UNION(&v, parray));
                VariantClear(&v);
              }
              IFilterMapper2_Release(pFilterData);
            }
            if (pFileMapper) IFilterMapper2_Release(pFileMapper);

            add_prop_str(pDShowSubCont, szVersionW, bufferW);
            add_prop_str(pDShowSubCont, szCatName, wszCatName);
            add_prop_str(pDShowSubCont, ClsidCatW, wszCatClsid);
            add_prop_ui4(pDShowSubCont, dwInputs,  dwNInputs);
            add_prop_ui4(pDShowSubCont, dwOutputs, dwNOutputs);
            add_prop_ui4(pDShowSubCont, dwMeritW, dwMerit);

            i++;
	  }
	  IPropertyBag_Release(pPropFilterBag); pPropFilterBag = NULL;
	}
	IEnumMoniker_Release(pEnum); pEnum = NULL;
      }
class_enum_failed:      
      SysFreeString(wszCatName);
      SysFreeString(wszCatClsid);
      IPropertyBag_Release(pPropBag); pPropBag = NULL;
    }
    IEnumMoniker_Release(pMCat); pMCat = NULL;
  }

out_show_filters:
  if (NULL != pEmCat) { IEnumMoniker_Release(pEmCat); pEmCat = NULL; }
  if (NULL != pCreateDevEnum) { ICreateDevEnum_Release(pCreateDevEnum); pCreateDevEnum = NULL; }
  return hr;
}

static HRESULT DXDiag_InitRootDXDiagContainer(IDxDiagContainer* pRootCont, IDxDiagProvider *pProv) {
  static const WCHAR DxDiag_SystemInfo[] = {'D','x','D','i','a','g','_','S','y','s','t','e','m','I','n','f','o',0};
  static const WCHAR DxDiag_DisplayDevices[] = {'D','x','D','i','a','g','_','D','i','s','p','l','a','y','D','e','v','i','c','e','s',0};
  static const WCHAR DxDiag_DirectSound[] = {'D','x','D','i','a','g','_','D','i','r','e','c','t','S','o','u','n','d',0};
  static const WCHAR DxDiag_DirectMusic[] = {'D','x','D','i','a','g','_','D','i','r','e','c','t','M','u','s','i','c',0};
  static const WCHAR DxDiag_DirectInput[] = {'D','x','D','i','a','g','_','D','i','r','e','c','t','I','n','p','u','t',0};
  static const WCHAR DxDiag_DirectPlay[] = {'D','x','D','i','a','g','_','D','i','r','e','c','t','P','l','a','y',0};
  static const WCHAR DxDiag_SystemDevices[] = {'D','x','D','i','a','g','_','S','y','s','t','e','m','D','e','v','i','c','e','s',0};
  static const WCHAR DxDiag_DirectXFiles[] = {'D','x','D','i','a','g','_','D','i','r','e','c','t','X','F','i','l','e','s',0};
  static const WCHAR DxDiag_DirectShowFilters[] = {'D','x','D','i','a','g','_','D','i','r','e','c','t','S','h','o','w','F','i','l','t','e','r','s',0};
  static const WCHAR DxDiag_LogicalDisks[] = {'D','x','D','i','a','g','_','L','o','g','i','c','a','l','D','i','s','k','s',0};

  static const struct
  {
    const WCHAR *name;
    HRESULT (*initfunc)(IDxDiagContainer*, IDxDiagProvider*);
  } containers[] =
  {
    {DxDiag_SystemInfo,        DXDiag_InitDXDiagSystemInfoContainer},
    {DxDiag_DisplayDevices,    DXDiag_InitDXDiagDisplayContainer},
    {DxDiag_DirectSound,       DXDiag_InitDXDiagDirectSoundContainer},
    {DxDiag_DirectMusic,       DXDiag_InitDXDiagDirectMusicContainer},
    {DxDiag_DirectInput,       DXDiag_InitDXDiagDirectInputContainer},
    {DxDiag_DirectPlay,        DXDiag_InitDXDiagDirectPlayContainer},
    {DxDiag_SystemDevices,     DXDiag_InitDXDiagSystemDevicesContainer},
    {DxDiag_DirectXFiles,      DXDiag_InitDXDiagDirectXFilesContainer},
    {DxDiag_DirectShowFilters, DXDiag_InitDXDiagDirectShowFiltersContainer},
    {DxDiag_LogicalDisks,      DXDiag_InitDXDiagLogicalDisksContainer},
  };

  size_t index;

  TRACE("(%p)\n", pRootCont);

  for (index = 0; index < sizeof(containers)/sizeof(containers[0]); index++)
  {
    IDxDiagContainer* pSubCont;
    HRESULT hr;

    hr = DXDiag_CreateDXDiagContainer(&IID_IDxDiagContainer, pProv, (void**) &pSubCont);
    if (FAILED(hr))
      return hr;

    hr = IDxDiagContainerImpl_AddChildContainer(pRootCont, containers[index].name, pSubCont);
    if (FAILED(hr))
    {
      IDxDiagContainer_Release(pSubCont);
      return hr;
    }

    /* The return value is ignored for now. */
    containers[index].initfunc(pSubCont, pProv);
  }

  return S_OK;
}

static void free_information_tree(IDxDiagContainerImpl_Container *node)
{
    IDxDiagContainerImpl_Container *ptr, *cursor2;

    if (!node)
        return;

    HeapFree(GetProcessHeap(), 0, node->contName);

    LIST_FOR_EACH_ENTRY_SAFE(ptr, cursor2, &node->subContainers, IDxDiagContainerImpl_Container, entry)
    {
        list_remove(&ptr->entry);
        free_information_tree(ptr);
    }

    HeapFree(GetProcessHeap(), 0, node);
}

static IDxDiagContainerImpl_Container *allocate_information_node(const WCHAR *name)
{
    IDxDiagContainerImpl_Container *ret;

    ret = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*ret));
    if (!ret)
        return NULL;

    if (name)
    {
        ret->contName = HeapAlloc(GetProcessHeap(), 0, (strlenW(name) + 1) * sizeof(*name));
        if (!ret->contName)
        {
            HeapFree(GetProcessHeap(), 0, ret);
            return NULL;
        }
        strcpyW(ret->contName, name);
    }

    list_init(&ret->subContainers);
    list_init(&ret->properties);

    return ret;
}

static inline void add_subcontainer(IDxDiagContainerImpl_Container *node, IDxDiagContainerImpl_Container *subCont)
{
    list_add_tail(&node->subContainers, &subCont->entry);
    ++node->nSubContainers;
}

static HRESULT build_systeminfo_tree(IDxDiagContainerImpl_Container *node)
{
    return S_OK;
}

static HRESULT build_displaydevices_tree(IDxDiagContainerImpl_Container *node)
{
    return S_OK;
}

static HRESULT build_directsound_tree(IDxDiagContainerImpl_Container *node)
{
    return S_OK;
}

static HRESULT build_directmusic_tree(IDxDiagContainerImpl_Container *node)
{
    return S_OK;
}

static HRESULT build_directinput_tree(IDxDiagContainerImpl_Container *node)
{
    return S_OK;
}

static HRESULT build_directplay_tree(IDxDiagContainerImpl_Container *node)
{
    return S_OK;
}

static HRESULT build_systemdevices_tree(IDxDiagContainerImpl_Container *node)
{
    return S_OK;
}

static HRESULT build_directxfiles_tree(IDxDiagContainerImpl_Container *node)
{
    return S_OK;
}

static HRESULT build_directshowfilters_tree(IDxDiagContainerImpl_Container *node)
{
    return S_OK;
}

static HRESULT build_logicaldisks_tree(IDxDiagContainerImpl_Container *node)
{
    return S_OK;
}

static HRESULT build_information_tree(IDxDiagContainerImpl_Container **pinfo_root)
{
    static const WCHAR DxDiag_SystemInfo[] = {'D','x','D','i','a','g','_','S','y','s','t','e','m','I','n','f','o',0};
    static const WCHAR DxDiag_DisplayDevices[] = {'D','x','D','i','a','g','_','D','i','s','p','l','a','y','D','e','v','i','c','e','s',0};
    static const WCHAR DxDiag_DirectSound[] = {'D','x','D','i','a','g','_','D','i','r','e','c','t','S','o','u','n','d',0};
    static const WCHAR DxDiag_DirectMusic[] = {'D','x','D','i','a','g','_','D','i','r','e','c','t','M','u','s','i','c',0};
    static const WCHAR DxDiag_DirectInput[] = {'D','x','D','i','a','g','_','D','i','r','e','c','t','I','n','p','u','t',0};
    static const WCHAR DxDiag_DirectPlay[] = {'D','x','D','i','a','g','_','D','i','r','e','c','t','P','l','a','y',0};
    static const WCHAR DxDiag_SystemDevices[] = {'D','x','D','i','a','g','_','S','y','s','t','e','m','D','e','v','i','c','e','s',0};
    static const WCHAR DxDiag_DirectXFiles[] = {'D','x','D','i','a','g','_','D','i','r','e','c','t','X','F','i','l','e','s',0};
    static const WCHAR DxDiag_DirectShowFilters[] = {'D','x','D','i','a','g','_','D','i','r','e','c','t','S','h','o','w','F','i','l','t','e','r','s',0};
    static const WCHAR DxDiag_LogicalDisks[] = {'D','x','D','i','a','g','_','L','o','g','i','c','a','l','D','i','s','k','s',0};

    static const struct
    {
        const WCHAR *name;
        HRESULT (*initfunc)(IDxDiagContainerImpl_Container *);
    } root_children[] =
    {
        {DxDiag_SystemInfo, build_systeminfo_tree},
        {DxDiag_DisplayDevices, build_displaydevices_tree},
        {DxDiag_DirectSound, build_directsound_tree},
        {DxDiag_DirectMusic, build_directmusic_tree},
        {DxDiag_DirectInput, build_directinput_tree},
        {DxDiag_DirectPlay, build_directplay_tree},
        {DxDiag_SystemDevices, build_systemdevices_tree},
        {DxDiag_DirectXFiles, build_directxfiles_tree},
        {DxDiag_DirectShowFilters, build_directshowfilters_tree},
        {DxDiag_LogicalDisks, build_logicaldisks_tree},
    };

    IDxDiagContainerImpl_Container *info_root;
    size_t index;

    info_root = allocate_information_node(NULL);
    if (!info_root)
        return E_OUTOFMEMORY;

    for (index = 0; index < sizeof(root_children)/sizeof(root_children[0]); index++)
    {
        IDxDiagContainerImpl_Container *node;

        node = allocate_information_node(root_children[index].name);
        if (!node)
        {
            free_information_tree(info_root);
            return E_OUTOFMEMORY;
        }

        root_children[index].initfunc(node);

        add_subcontainer(info_root, node);
    }

    *pinfo_root = info_root;
    return S_OK;
}