git.oblomov.eu Git - wine/blob - dlls/ddraw/ddraw/hal.c

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