dlls/ddraw/ddraw_hal.c

   1 /*      DirectDraw HAL driver
   2  *
   3  * Copyright 2001 TransGaming Technologies Inc.
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  18  */
  19
  20 #include "config.h"
  21
  22 #include <assert.h>
  23 #include <stdarg.h>
  24 #include <stdlib.h>
  25
  26 #include "wine/debug.h"
  27 #include "windef.h"
  28 #include "winbase.h"
  29 #include "wingdi.h"
  30 #include "ddraw.h"
  31 #include "ddrawi.h"
  32 #include "d3dhal.h"
  33
  34 #include "ddraw_private.h"
  35
  36 WINE_DEFAULT_DEBUG_CHANNEL(ddraw);
  37
  38 static const IDirectDraw7Vtbl HAL_DirectDraw_VTable;
  39
  40 static DDVERSIONDATA hal_version;
  41 static DD32BITDRIVERDATA hal_driverdata;
  42 static HINSTANCE hal_instance;
  43
  44 static const DDDEVICEIDENTIFIER2 hal_device =
  45 {
  46     "display",
  47     "DirectDraw HAL",
  48     { { 0x00010001, 0x00010001 } },
  49     0, 0, 0, 0,
  50     /* 40c1b248-9d7d-4a29-b7d7-4cd8109f3d5d */
  51     {0x40c1b248,0x9d7d,0x4a29,{0xd7,0xb7,0x4c,0xd8,0x10,0x9f,0x3d,0x5d}},
  52     0
  53 };
  54
  55 HRESULT HAL_DirectDraw_Create(const GUID* pGUID, LPDIRECTDRAW7* pIface,
  56                               IUnknown* pUnkOuter, BOOL ex);
  57 HRESULT HAL_DirectDraw_Initialize(IDirectDrawImpl*, const GUID*);
  58
  59 static const ddraw_driver hal_driver =
  60 {
  61     &hal_device,
  62     100, /* we prefer the HAL */
  63     HAL_DirectDraw_Create,
  64     HAL_DirectDraw_Initialize
  65 };
  66
  67 static DDHAL_CALLBACKS dd_cbs;
  68 static DDRAWI_DIRECTDRAW_GBL dd_gbl;
  69
  70 static D3DHAL_GLOBALDRIVERDATA d3d_hal_data;
  71 static D3DHAL_D3DEXTENDEDCAPS d3d_hal_extcaps;
  72 static D3DHAL_CALLBACKS d3d_hal_cbs1;
  73 static D3DHAL_CALLBACKS2 d3d_hal_cbs2;
  74
  75 /* in real windoze, these entry points are 16-bit, but we can work in 32-bit */
  76 static BOOL WINAPI set_hal_info(LPDDHALINFO lpDDHalInfo, BOOL reset)
  77 {
  78     dd_cbs.HALDD        = *lpDDHalInfo->lpDDCallbacks;
  79     dd_cbs.HALDDSurface = *lpDDHalInfo->lpDDSurfaceCallbacks;
  80     dd_cbs.HALDDPalette = *lpDDHalInfo->lpDDPaletteCallbacks;
  81     if (lpDDHalInfo->lpDDExeBufCallbacks)
  82         dd_cbs.HALDDExeBuf      = *lpDDHalInfo->lpDDExeBufCallbacks;
  83
  84     dd_gbl.lpDDCBtmp = &dd_cbs;
  85
  86     dd_gbl.ddCaps                = lpDDHalInfo->ddCaps;
  87     dd_gbl.dwMonitorFrequency    = lpDDHalInfo->dwMonitorFrequency;
  88     dd_gbl.vmiData               = lpDDHalInfo->vmiData;
  89     dd_gbl.dwModeIndex           = lpDDHalInfo->dwModeIndex;
  90     dd_gbl.dwNumFourCC           = lpDDHalInfo->ddCaps.dwNumFourCCCodes;
  91     dd_gbl.lpdwFourCC            = lpDDHalInfo->lpdwFourCC;
  92     dd_gbl.dwNumModes            = lpDDHalInfo->dwNumModes;
  93     dd_gbl.lpModeInfo            = lpDDHalInfo->lpModeInfo;
  94     /* FIXME: dwFlags */
  95     dd_gbl.dwPDevice             = (DWORD)lpDDHalInfo->lpPDevice;
  96     dd_gbl.hInstance             = lpDDHalInfo->hInstance;
  97     /* DirectX 2 */
  98     if (lpDDHalInfo->lpD3DGlobalDriverData)
  99         memcpy(&d3d_hal_data, (LPVOID)lpDDHalInfo->lpD3DGlobalDriverData, sizeof(D3DDEVICEDESC_V1));
 100     else
 101         memset(&d3d_hal_data, 0, sizeof(D3DDEVICEDESC_V1));
 102     dd_gbl.lpD3DGlobalDriverData = (ULONG_PTR)&d3d_hal_data;
 103
 104     if (lpDDHalInfo->lpD3DHALCallbacks)
 105         memcpy(&d3d_hal_cbs1, (LPVOID)lpDDHalInfo->lpD3DHALCallbacks, sizeof(D3DHAL_CALLBACKS));
 106     else
 107         memset(&d3d_hal_cbs1, 0, sizeof(D3DHAL_CALLBACKS));
 108     dd_gbl.lpD3DHALCallbacks     = (ULONG_PTR)&d3d_hal_cbs1;
 109
 110     if (lpDDHalInfo->dwFlags & DDHALINFO_GETDRIVERINFOSET) {
 111         DDHAL_GETDRIVERINFODATA data;
 112         data.dwSize = sizeof(DDHAL_GETDRIVERINFODATA);
 113         data.dwFlags = 0; /* ? */
 114         data.dwContext = hal_driverdata.dwContext; /* ? */
 115
 116         data.guidInfo = GUID_D3DExtendedCaps;
 117         data.dwExpectedSize = sizeof(D3DHAL_D3DEXTENDEDCAPS);
 118         data.lpvData = &d3d_hal_extcaps;
 119         data.dwActualSize = 0;
 120         data.ddRVal = 0;
 121         lpDDHalInfo->GetDriverInfo(&data);
 122         d3d_hal_extcaps.dwSize = data.dwActualSize;
 123         dd_gbl.lpD3DExtendedCaps = (ULONG_PTR)&d3d_hal_extcaps;
 124
 125         data.guidInfo = GUID_D3DCallbacks2;
 126         data.dwExpectedSize = sizeof(D3DHAL_CALLBACKS2);
 127         data.lpvData = &d3d_hal_cbs2;
 128         data.dwActualSize = 0;
 129         data.ddRVal = 0;
 130         lpDDHalInfo->GetDriverInfo(&data);
 131         d3d_hal_cbs2.dwSize = data.dwActualSize;
 132         dd_gbl.lpD3DHALCallbacks2 = (ULONG_PTR)&d3d_hal_cbs2;
 133     }
 134
 135     if( opengl_initialized &&
 136            (d3d_hal_data.hwCaps.dwFlags & D3DDD_WINE_OPENGL_DEVICE) ) {
 137         /*GL_DirectDraw_Init(&dd_gbl);*/
 138     }
 139
 140     return FALSE;
 141 }
 142
 143 static DDHALDDRAWFNS hal_funcs = {
 144     sizeof(DDHALDDRAWFNS),
 145     set_hal_info,
 146     NULL, /* VidMemAlloc */
 147     NULL  /* VidMemFree */
 148 };
 149
 150 /* Called from DllInit, which is synchronised so there are no threading
 151  * concerns. */
 152 static BOOL initialize(void)
 153 {
 154     DCICMD cmd;
 155     INT ncmd = DCICOMMAND;
 156     BOOL ret;
 157     HDC dc = CreateDCA("DISPLAY", NULL, NULL, NULL);
 158     INT ver = Escape(dc, QUERYESCSUPPORT, sizeof(ncmd), (LPVOID)&ncmd, NULL);
 159     if (ver != DD_HAL_VERSION) {
 160         DeleteDC(dc);
 161         TRACE("DirectDraw HAL not available\n");
 162         return FALSE;
 163     }
 164     cmd.dwVersion = DD_VERSION;
 165     cmd.dwReserved = 0;
 166
 167     /* the DDNEWCALLBACKFNS is supposed to give the 16-bit driver entry points
 168      * in ddraw16.dll, but since Wine doesn't have or use 16-bit display drivers,
 169      * we'll just work in 32-bit, who'll notice... */
 170     cmd.dwCommand = DDNEWCALLBACKFNS;
 171     cmd.dwParam1 = (DWORD)&hal_funcs;
 172     ExtEscape(dc, DCICOMMAND, sizeof(cmd), (LPVOID)&cmd, 0, NULL);
 173
 174     /* next, exchange version information */
 175     cmd.dwCommand = DDVERSIONINFO;
 176     cmd.dwParam1 = DD_RUNTIME_VERSION; /* not sure what should *really* go here */
 177     ExtEscape(dc, DCICOMMAND, sizeof(cmd), (LPVOID)&cmd, sizeof(hal_version), (LPVOID)&hal_version);
 178
 179     /* get 32-bit driver data (dll name and entry point) */
 180     cmd.dwCommand = DDGET32BITDRIVERNAME;
 181     ExtEscape(dc, DCICOMMAND, sizeof(cmd), (LPVOID)&cmd, sizeof(hal_driverdata), (LPVOID)&hal_driverdata);
 182     /* we're supposed to load the DLL in hal_driverdata.szName, then GetProcAddress
 183      * the hal_driverdata.szEntryPoint, and call it with hal_driverdata.dwContext
 184      * as a parameter... but since this is only more remains from the 16-bit world,
 185      * we'll ignore it */
 186
 187     /* finally, initialize the driver object */
 188     cmd.dwCommand = DDCREATEDRIVEROBJECT;
 189     ret = ExtEscape(dc, DCICOMMAND, sizeof(cmd), (LPVOID)&cmd, sizeof(hal_instance), (LPVOID)&hal_instance);
 190     if (ret) {
 191         /* the driver should have called our set_hal_info now */
 192         if (!dd_gbl.lpDDCBtmp) ret = FALSE;
 193     }
 194
 195     /* init done */
 196     DeleteDC(dc);
 197
 198     TRACE("%s DirectDraw HAL\n", ret ? "enabling" : "disabling");
 199
 200     return ret;
 201 }
 202
 203 static void cleanup(void)
 204 {
 205     DDHAL_DESTROYDRIVERDATA data;
 206
 207     if (!dd_cbs.HALDD.DestroyDriver) return;
 208
 209     data.lpDD = NULL;
 210     data.ddRVal = 0;
 211     data.DestroyDriver = dd_cbs.HALDD.DestroyDriver;
 212     data.DestroyDriver(&data);
 213 }
 214
 215 static DWORD choose_mode(DWORD dwWidth, DWORD dwHeight, DWORD dwBPP,
 216                          DWORD dwRefreshRate, DWORD dwFlags)
 217 {
 218     int best = -1;
 219     unsigned int i;
 220
 221     if (!dd_gbl.dwNumModes) return 0;
 222
 223 /* let's support HALs that cannot switch depths (XVidMode),
 224  * these should return dwBPP == 0 for all their resolutions */
 225 #define BPP_MATCH(dd, bpp) ((!(dd)) || ((dd) == bpp))
 226
 227 /* FIXME: we should try to match the refresh rate too */
 228
 229     /* Choose the smallest mode that is large enough. */
 230     for (i=0; i < dd_gbl.dwNumModes; i++)
 231     {
 232         if (dd_gbl.lpModeInfo[i].dwWidth >= dwWidth &&
 233             dd_gbl.lpModeInfo[i].dwHeight >= dwHeight &&
 234             BPP_MATCH(dd_gbl.lpModeInfo[i].dwBPP, dwBPP))
 235         {
 236             if (best == -1) best = i;
 237             else
 238             {
 239                 if (dd_gbl.lpModeInfo[i].dwWidth < dd_gbl.lpModeInfo[best].dwWidth ||
 240                     dd_gbl.lpModeInfo[i].dwHeight < dd_gbl.lpModeInfo[best].dwHeight)
 241                     best = i;
 242             }
 243         }
 244     }
 245
 246     if (best == -1)
 247     {
 248         TRACE("all modes too small\n");
 249         /* ok, let's use the largest */
 250
 251         for (i=0; i < dd_gbl.dwNumModes; i++)
 252         {
 253             if (BPP_MATCH(dd_gbl.lpModeInfo[i].dwBPP, dwBPP))
 254             {
 255                 if (best == -1) best = i;
 256                 else
 257                 {
 258                     if (dd_gbl.lpModeInfo[i].dwWidth > dd_gbl.lpModeInfo[best].dwWidth ||
 259                         dd_gbl.lpModeInfo[i].dwHeight > dd_gbl.lpModeInfo[best].dwHeight)
 260                         best = i;
 261                 }
 262             }
 263         }
 264     }
 265 #undef BPP_MATCH
 266
 267     if (best == -1)
 268     {
 269         ERR("requested color depth (%ld) not available, try reconfiguring X server\n", dwBPP);
 270         return dd_gbl.dwModeIndex;
 271     }
 272
 273     TRACE("using mode %d\n", best);
 274
 275     return best;
 276 }
 277
 278 static HRESULT set_mode(IDirectDrawImpl *This, DWORD dwMode)
 279 {
 280     HRESULT hr = DD_OK;
 281
 282     if (dwMode != dd_gbl.dwModeIndex)
 283     {
 284         DDHAL_SETMODEDATA data;
 285         data.lpDD = &dd_gbl;
 286         data.dwModeIndex = dwMode;
 287         data.ddRVal = 0;
 288         data.SetMode = dd_cbs.HALDD.SetMode;
 289         data.inexcl = 0;
 290         data.useRefreshRate = FALSE;
 291         if (data.SetMode)
 292             data.SetMode(&data);
 293         hr = data.ddRVal;
 294         if (SUCCEEDED(hr))
 295             dd_gbl.dwModeIndex = dwMode;
 296     }
 297     return hr;
 298 }
 299
 300 static HRESULT set_exclusive_mode(IDirectDrawImpl *This, DWORD dwEnterExcl)
 301 {
 302     DDHAL_SETEXCLUSIVEMODEDATA data;
 303
 304     data.lpDD = &dd_gbl;
 305     data.dwEnterExcl = dwEnterExcl;
 306     data.dwReserved = 0;
 307     data.ddRVal = 0;
 308     data.SetExclusiveMode = dd_cbs.HALDD.SetExclusiveMode;
 309     if (data.SetExclusiveMode)
 310         data.SetExclusiveMode(&data);
 311     return data.ddRVal;
 312 }
 313
 314 BOOL DDRAW_HAL_Init(HINSTANCE hInstDLL, DWORD fdwReason, LPVOID lpv)
 315 {
 316     if (fdwReason == DLL_PROCESS_ATTACH)
 317     {
 318         if (initialize())
 319             DDRAW_register_driver(&hal_driver);
 320     }
 321     else if (fdwReason == DLL_PROCESS_DETACH)
 322     {
 323         cleanup();
 324     }
 325
 326     return TRUE;
 327 }
 328
 329 /* Not called from the vtable. */
 330 HRESULT HAL_DirectDraw_Construct(IDirectDrawImpl *This, BOOL ex)
 331 {
 332     HRESULT hr;
 333
 334     TRACE("(%p,%d)\n", This, ex);
 335
 336     hr = User_DirectDraw_Construct(This, ex);
 337     if (FAILED(hr)) return hr;
 338
 339     This->local.lpGbl = &dd_gbl;
 340
 341     This->final_release = HAL_DirectDraw_final_release;
 342     This->set_exclusive_mode = set_exclusive_mode;
 343
 344     This->create_palette = HAL_DirectDrawPalette_Create;
 345
 346     This->create_primary    = HAL_DirectDraw_create_primary;
 347     This->create_backbuffer = HAL_DirectDraw_create_backbuffer;
 348     This->create_texture    = HAL_DirectDraw_create_texture;
 349
 350     ICOM_INIT_INTERFACE(This, IDirectDraw7, HAL_DirectDraw_VTable);
 351
 352     /* merge HAL caps */
 353     This->caps.dwCaps |= dd_gbl.ddCaps.dwCaps;
 354     This->caps.dwCaps2 |= dd_gbl.ddCaps.dwCaps2;
 355     This->caps.dwCKeyCaps |= dd_gbl.ddCaps.dwCKeyCaps;
 356     This->caps.dwFXCaps |= dd_gbl.ddCaps.dwFXCaps;
 357     This->caps.dwPalCaps |= dd_gbl.ddCaps.dwPalCaps;
 358     /* FIXME: merge more caps */
 359     This->caps.ddsCaps.dwCaps |= dd_gbl.ddCaps.ddsCaps.dwCaps;
 360     This->caps.ddsCaps.dwCaps2 |= dd_gbl.ddsCapsMore.dwCaps2;
 361     This->caps.ddsCaps.dwCaps3 |= dd_gbl.ddsCapsMore.dwCaps3;
 362     This->caps.ddsCaps.dwCaps4 |= dd_gbl.ddsCapsMore.dwCaps4;
 363     This->caps.ddsOldCaps.dwCaps = This->caps.ddsCaps.dwCaps;
 364
 365     return S_OK;
 366 }
 367
 368 /* This function is called from DirectDrawCreate(Ex) on the most-derived
 369  * class to start construction.
 370  * Not called from the vtable. */
 371 HRESULT HAL_DirectDraw_Create(const GUID* pGUID, LPDIRECTDRAW7* pIface,
 372                               IUnknown* pUnkOuter, BOOL ex)
 373 {
 374     HRESULT hr;
 375     IDirectDrawImpl* This;
 376
 377     TRACE("\n");
 378
 379     assert(pUnkOuter == NULL);
 380
 381     This = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
 382                      sizeof(IDirectDrawImpl)
 383                      + sizeof(HAL_DirectDrawImpl));
 384     if (This == NULL) return E_OUTOFMEMORY;
 385
 386     /* Note that this relation does *not* hold true if the DD object was
 387      * CoCreateInstanced then Initialized. */
 388     This->private = (HAL_DirectDrawImpl *)(This+1);
 389
 390     /* Initialize the DDCAPS structure */
 391     This->caps.dwSize = sizeof(This->caps);
 392
 393     hr = HAL_DirectDraw_Construct(This, ex);
 394     if (FAILED(hr))
 395         HeapFree(GetProcessHeap(), 0, This);
 396     else
 397         *pIface = ICOM_INTERFACE(This, IDirectDraw7);
 398
 399     return hr;
 400 }
 401
 402 /* This function is called from Uninit_DirectDraw_Initialize on the
 403  * most-derived-class to start initialization.
 404  * Not called from the vtable. */
 405 HRESULT HAL_DirectDraw_Initialize(IDirectDrawImpl *This, const GUID* guid)
 406 {
 407     HRESULT hr;
 408
 409     TRACE("\n");
 410
 411     This->private = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
 412                               sizeof(HAL_DirectDrawImpl));
 413     if (This->private == NULL) return E_OUTOFMEMORY;
 414
 415     /* Initialize the DDCAPS structure */
 416     This->caps.dwSize = sizeof(This->caps);
 417
 418     hr = HAL_DirectDraw_Construct(This, TRUE); /* XXX ex? */
 419     if (FAILED(hr))
 420     {
 421         HeapFree(GetProcessHeap(), 0, This->private);
 422         return hr;
 423     }
 424
 425     return DD_OK;
 426 }
 427
 428 /* Called from an internal function pointer. */
 429 void HAL_DirectDraw_final_release(IDirectDrawImpl *This)
 430 {
 431     if (dd_gbl.dwFlags & DDRAWI_MODECHANGED) set_mode(This, dd_gbl.dwModeIndexOrig);
 432     User_DirectDraw_final_release(This);
 433 }
 434
 435 HRESULT HAL_DirectDraw_create_primary(IDirectDrawImpl* This,
 436                                       const DDSURFACEDESC2* pDDSD,
 437                                       LPDIRECTDRAWSURFACE7* ppSurf,
 438                                       IUnknown* pUnkOuter)
 439 {
 440     if (This->cooperative_level & DDSCL_EXCLUSIVE)
 441         return HAL_DirectDrawSurface_Create(This, pDDSD, ppSurf, pUnkOuter);
 442     else
 443         return User_DirectDrawSurface_Create(This, pDDSD, ppSurf, pUnkOuter);
 444 }
 445
 446 HRESULT HAL_DirectDraw_create_backbuffer(IDirectDrawImpl* This,
 447                                          const DDSURFACEDESC2* pDDSD,
 448                                          LPDIRECTDRAWSURFACE7* ppSurf,
 449                                          IUnknown* pUnkOuter,
 450                                          IDirectDrawSurfaceImpl* primary)
 451 {
 452     if (This->cooperative_level & DDSCL_EXCLUSIVE)
 453         return HAL_DirectDrawSurface_Create(This, pDDSD, ppSurf, pUnkOuter);
 454     else
 455         return User_DirectDrawSurface_Create(This, pDDSD, ppSurf, pUnkOuter);
 456 }
 457
 458 HRESULT HAL_DirectDraw_create_texture(IDirectDrawImpl* This,
 459                                       const DDSURFACEDESC2* pDDSD,
 460                                       LPDIRECTDRAWSURFACE7* ppSurf,
 461                                       LPUNKNOWN pOuter,
 462                                       DWORD dwMipMapLevel)
 463 {
 464     return HAL_DirectDrawSurface_Create(This, pDDSD, ppSurf, pOuter);
 465 }
 466
 467 HRESULT WINAPI
 468 HAL_DirectDraw_GetDeviceIdentifier(LPDIRECTDRAW7 iface,
 469                                    LPDDDEVICEIDENTIFIER2 pDDDI,
 470                                    DWORD dwFlags)
 471 {
 472     *pDDDI = hal_device;
 473     return DD_OK;
 474 }
 475
 476 HRESULT WINAPI
 477 HAL_DirectDraw_RestoreDisplayMode(LPDIRECTDRAW7 iface)
 478 {
 479     IDirectDrawImpl *This = (IDirectDrawImpl *)iface;
 480     HRESULT hr;
 481
 482     TRACE("(%p)\n", iface);
 483
 484     if (!(dd_gbl.dwFlags & DDRAWI_MODECHANGED)) return DD_OK;
 485
 486     hr = Main_DirectDraw_RestoreDisplayMode(iface);
 487     if (SUCCEEDED(hr)) {
 488         hr = set_mode(This, dd_gbl.dwModeIndexOrig);
 489         if (SUCCEEDED(hr)) dd_gbl.dwFlags &= ~DDRAWI_MODECHANGED;
 490     }
 491
 492     return hr;
 493 }
 494
 495 HRESULT WINAPI
 496 HAL_DirectDraw_SetDisplayMode(LPDIRECTDRAW7 iface, DWORD dwWidth,
 497                               DWORD dwHeight, DWORD dwBPP,
 498                               DWORD dwRefreshRate, DWORD dwFlags)
 499 {
 500     IDirectDrawImpl *This = (IDirectDrawImpl *)iface;
 501
 502     HRESULT hr;
 503
 504     TRACE("(%p)->(%ldx%ldx%ld,%ld Hz,%08lx)\n",This,dwWidth,dwHeight,dwBPP,dwRefreshRate,dwFlags);
 505     hr = User_DirectDraw_SetDisplayMode(iface, dwWidth, dwHeight, dwBPP,
 506                                         dwRefreshRate, dwFlags);
 507
 508     if (SUCCEEDED(hr)) {
 509         if (!(dd_gbl.dwFlags & DDRAWI_MODECHANGED)) dd_gbl.dwModeIndexOrig = dd_gbl.dwModeIndex;
 510         hr = set_mode(This, choose_mode(dwWidth, dwHeight, dwBPP, dwRefreshRate, dwFlags));
 511         if (SUCCEEDED(hr)) dd_gbl.dwFlags |= DDRAWI_MODECHANGED;
 512     }
 513
 514     return hr;
 515 }
 516
 517 HRESULT WINAPI
 518 HAL_DirectDraw_GetFourCCCodes(LPDIRECTDRAW7 iface, LPDWORD pNumCodes,
 519                                LPDWORD pCodes)
 520 {
 521     unsigned int i;
 522     IDirectDrawImpl *This = (IDirectDrawImpl *)iface;
 523     if (*pNumCodes)
 524         *pNumCodes=dd_gbl.dwNumFourCC;
 525     if (pCodes && dd_gbl.dwNumFourCC)
 526         memcpy(pCodes,dd_gbl.lpdwFourCC,sizeof(pCodes[0])*dd_gbl.dwNumFourCC);
 527     FIXME("(%p,%p,%p)\n",This,pNumCodes,pCodes);
 528     if (dd_gbl.dwNumFourCC) {
 529         if (pCodes && FIXME_ON(ddraw)) {
 530             FIXME("returning: ");
 531             for (i=0;i<dd_gbl.dwNumFourCC;i++) {
 532                 MESSAGE("%c%c%c%c,",
 533                         ((LPBYTE)(pCodes+i))[0],
 534                         ((LPBYTE)(pCodes+i))[1],
 535                         ((LPBYTE)(pCodes+i))[2],
 536                         ((LPBYTE)(pCodes+i))[3]
 537                 );
 538             }
 539             MESSAGE("\n");
 540         }
 541     }
 542     return DD_OK;
 543 }
 544
 545
 546 static const IDirectDraw7Vtbl HAL_DirectDraw_VTable =
 547 {
 548     Main_DirectDraw_QueryInterface,
 549     Main_DirectDraw_AddRef,
 550     Main_DirectDraw_Release,
 551     Main_DirectDraw_Compact,
 552     Main_DirectDraw_CreateClipper,
 553     Main_DirectDraw_CreatePalette,
 554     Main_DirectDraw_CreateSurface,
 555     Main_DirectDraw_DuplicateSurface,
 556     User_DirectDraw_EnumDisplayModes,
 557     Main_DirectDraw_EnumSurfaces,
 558     Main_DirectDraw_FlipToGDISurface,
 559     Main_DirectDraw_GetCaps,
 560     Main_DirectDraw_GetDisplayMode,
 561     HAL_DirectDraw_GetFourCCCodes,
 562     Main_DirectDraw_GetGDISurface,
 563     Main_DirectDraw_GetMonitorFrequency,
 564     Main_DirectDraw_GetScanLine,
 565     Main_DirectDraw_GetVerticalBlankStatus,
 566     Main_DirectDraw_Initialize,
 567     HAL_DirectDraw_RestoreDisplayMode,
 568     Main_DirectDraw_SetCooperativeLevel,
 569     HAL_DirectDraw_SetDisplayMode,
 570     Main_DirectDraw_WaitForVerticalBlank,
 571     Main_DirectDraw_GetAvailableVidMem,
 572     Main_DirectDraw_GetSurfaceFromDC,
 573     Main_DirectDraw_RestoreAllSurfaces,
 574     Main_DirectDraw_TestCooperativeLevel,
 575     HAL_DirectDraw_GetDeviceIdentifier,
 576     Main_DirectDraw_StartModeTest,
 577     Main_DirectDraw_EvaluateMode
 578 };