win32ss/reactx/dxg/ddraw.c

   1 /*
   2  * COPYRIGHT:        See COPYING in the top level directory
   3  * PROJECT:          ReactOS kernel
   4  * PURPOSE:          Native driver for dxg implementation
   5  * FILE:             win32ss/reactx/dxg/eng.c
   6  * PROGRAMER:        Magnus olsen (magnus@greatlord.com)
   7  *                   Sebastian Gasiorek (sebastian.gasiorek@reactos.org)
   8  * REVISION HISTORY:
   9  *       30/12-2007   Magnus Olsen
  10  */
  11
  12 #include <dxg_int.h>
  13
  14 /*++
  15 * @name intDdGetDriverInfo
  16 * @implemented
  17 *
  18 * The function intDdGetDriverInfo is used internally in dxg.sys
  19 * It retrieves driver information structures
  20 *
  21 * @param PEDD_DIRECTDRAW_GLOBAL peDdGl
  22 * DirectDraw global structure
  23 *
  24 * @param GUID guid
  25 * GUID of InfoData to read
  26 *
  27 * @param PVOID callbackStruct
  28 * Callback structure pointer
  29 *
  30 * @param ULONG callbackSize
  31 * Size of allocated callback structure
  32 *
  33 * @param ULONG *returnSize
  34 * Desired structure size returned by driver
  35 *
  36 * @return
  37 * Returns true on successful execution, false when error.
  38 *
  39 * @remarks.
  40 * Only used internally in dxg.sys
  41 *--*/
  42 BOOL intDdGetDriverInfo(PEDD_DIRECTDRAW_GLOBAL peDdGl, GUID guid, PVOID callbackStruct, ULONG callbackSize, ULONG *returnSize)
  43 {
  44     DD_GETDRIVERINFODATA ddGetDriverInfoData;
  45
  46     if (peDdGl->ddHalInfo.dwFlags & DDHALINFO_GETDRIVERINFOSET && peDdGl->ddHalInfo.GetDriverInfo)
  47     {
  48         memset(&ddGetDriverInfoData, 0, sizeof(DD_GETDRIVERINFODATA));
  49         ddGetDriverInfoData.dwSize = sizeof(DD_GETDRIVERINFODATA);
  50         ddGetDriverInfoData.dhpdev = peDdGl->dhpdev;
  51         memcpy(&ddGetDriverInfoData.guidInfo, &guid, sizeof(GUID));
  52         ddGetDriverInfoData.dwExpectedSize = callbackSize;
  53         ddGetDriverInfoData.lpvData = callbackStruct;
  54         ddGetDriverInfoData.ddRVal = DDERR_CURRENTLYNOTAVAIL;
  55         if (peDdGl->ddHalInfo.GetDriverInfo(&ddGetDriverInfoData) && !ddGetDriverInfoData.ddRVal)
  56         {
  57             if (returnSize)
  58                 *returnSize = ddGetDriverInfoData.dwActualSize;
  59             return TRUE;
  60         }
  61
  62     }
  63
  64     /* cleanup on error */
  65     memset(callbackStruct, 0, callbackSize);
  66     if (returnSize)
  67         *returnSize = 0;
  68     return FALSE;
  69 }
  70
  71 /*++
  72 * @name intDdGetAllDriverInfo
  73 * @implemented
  74 *
  75 * The function intDdGetAllDriverInfo is used internally in dxg.sys
  76 * It retrieves all possible driver information structures
  77 *
  78 * @param PEDD_DIRECTDRAW_GLOBAL peDdGl
  79 * Pointer to destination DirectDrawGlobal structure
  80 *
  81 * @remarks.
  82 * Only used internally in dxg.sys
  83 * Missing some callbacks (VideoPort, DxApi, AGP)
  84 *--*/
  85 VOID intDdGetAllDriverInfo(PEDD_DIRECTDRAW_GLOBAL peDdGl)
  86 {
  87     if (peDdGl->ddHalInfo.GetDriverInfo && peDdGl->ddHalInfo.dwFlags & DDHALINFO_GETDRIVERINFOSET)
  88     {
  89         intDdGetDriverInfo(peDdGl, GUID_KernelCaps, &peDdGl->ddKernelCaps, sizeof(peDdGl->ddKernelCaps), 0);
  90         intDdGetDriverInfo(peDdGl, GUID_KernelCallbacks, &peDdGl->ddKernelCallbacks, sizeof(peDdGl->ddKernelCallbacks), 0);
  91
  92         if (intDdGetDriverInfo(peDdGl, GUID_D3DCallbacks3, &peDdGl->d3dNtHalCallbacks3, sizeof(peDdGl->d3dNtHalCallbacks3), 0))
  93             peDdGl->dwCallbackFlags |= EDDDGBL_D3DCALLBACKS3;
  94
  95         if (intDdGetDriverInfo(peDdGl, GUID_ColorControlCallbacks, &peDdGl->ddColorControlCallbacks, sizeof(peDdGl->ddColorControlCallbacks), 0))
  96             peDdGl->dwCallbackFlags |= EDDDGBL_COLORCONTROLCALLBACKS;
  97
  98         if (intDdGetDriverInfo(peDdGl, GUID_MiscellaneousCallbacks, &peDdGl->ddMiscellanousCallbacks, sizeof(peDdGl->ddMiscellanousCallbacks), 0))
  99             peDdGl->dwCallbackFlags |= EDDDGBL_MISCCALLBACKS;
 100
 101         if (intDdGetDriverInfo(peDdGl, GUID_Miscellaneous2Callbacks, &peDdGl->ddMiscellanous2Callbacks, sizeof(peDdGl->ddMiscellanous2Callbacks), 0))
 102             peDdGl->dwCallbackFlags |= EDDDGBL_MISC2CALLBACKS;
 103
 104         if (intDdGetDriverInfo(peDdGl, GUID_NTCallbacks, &peDdGl->ddNtCallbacks, sizeof(peDdGl->ddNtCallbacks), 0) )
 105             peDdGl->dwCallbackFlags |= EDDDGBL_NTCALLBACKS;
 106
 107         if (intDdGetDriverInfo(peDdGl, GUID_DDMoreCaps, &peDdGl->ddMoreCaps, sizeof(peDdGl->ddMoreCaps), 0) )
 108             peDdGl->dwCallbackFlags |= EDDDGBL_DDMORECAPS;
 109
 110         if (intDdGetDriverInfo(peDdGl, GUID_NTPrivateDriverCaps, &peDdGl->ddNtPrivateDriverCaps, sizeof(peDdGl->ddNtPrivateDriverCaps), 0) )
 111             peDdGl->dwCallbackFlags |= EDDDGBL_PRIVATEDRIVERCAPS;
 112
 113         if (intDdGetDriverInfo(peDdGl, GUID_MotionCompCallbacks, &peDdGl->ddMotionCompCallbacks, sizeof(peDdGl->ddMotionCompCallbacks), 0) )
 114             peDdGl->dwCallbackFlags |= EDDDGBL_MOTIONCOMPCALLBACKS;
 115     }
 116 }
 117
 118 /*++
 119 * @name intDdEnableDriver
 120 * @implemented
 121 *
 122 * The function intDdEnableDriver is used internally in dxg.sys
 123 * Fills in all EDD_DIRECTDRAW_GLOBAL structures and enables DirectDraw acceleration when possible
 124 *
 125 * @param PEDD_DIRECTDRAW_GLOBAL peDdGl
 126 * Pointer to destination DirectDrawGlobal structure
 127 *
 128 * @remarks.
 129 * Only used internally in dxg.sys
 130 *--*/
 131 VOID intDdEnableDriver(PEDD_DIRECTDRAW_GLOBAL peDdGl)
 132 {
 133     PDRIVER_FUNCTIONS  DriverFunctions;
 134     LPD3DNTHAL_GLOBALDRIVERDATA GlobalDriverData;
 135     LPD3DNTHAL_CALLBACKS HalCallbacks;
 136     PDD_D3DBUFCALLBACKS D3DBufCallbacks;
 137
 138
 139     gpEngFuncs.DxEngLockHdev(peDdGl->hDev);
 140     DriverFunctions = (PDRIVER_FUNCTIONS)gpEngFuncs.DxEngGetHdevData(peDdGl->hDev, DxEGShDevData_DrvFuncs);
 141
 142     // check if driver has DirectDraw functions
 143     if ((!DriverFunctions->GetDirectDrawInfo)||(!DriverFunctions->EnableDirectDraw)||(!DriverFunctions->DisableDirectDraw))
 144         peDdGl->dhpdev = 0;
 145
 146
 147     // reset acceleration flag
 148     peDdGl->fl = peDdGl->fl & 0xFFFFFFFE;
 149
 150     // ask for structure sizes
 151     if ((peDdGl->dhpdev)&&(DriverFunctions->GetDirectDrawInfo(peDdGl->dhpdev, &peDdGl->ddHalInfo, &peDdGl->dwNumHeaps, NULL, &peDdGl->dwNumFourCC, NULL)))
 152     {
 153         // allocate memory for DX data
 154         if (peDdGl->dwNumHeaps)
 155             peDdGl->pvmList = EngAllocMem(FL_ZERO_MEMORY, peDdGl->dwNumHeaps*sizeof(VIDEOMEMORY), TAG_GDDV);
 156         if (peDdGl->dwNumFourCC)
 157             peDdGl->pdwFourCC = EngAllocMem(FL_ZERO_MEMORY, peDdGl->dwNumFourCC * 4, TAG_GDDF);
 158
 159         // get data from driver
 160         if (!DriverFunctions->GetDirectDrawInfo(peDdGl->dhpdev, &peDdGl->ddHalInfo, &peDdGl->dwNumHeaps, peDdGl->pvmList, &peDdGl->dwNumFourCC, peDdGl->pdwFourCC))
 161         {
 162             // failed - cleanup and exit
 163             if (peDdGl->pvmList)
 164                 EngFreeMem(peDdGl->pvmList);
 165             if (peDdGl->pdwFourCC)
 166                 EngFreeMem(peDdGl->pdwFourCC);
 167             gpEngFuncs.DxEngUnlockHdev(peDdGl->hDev);
 168             return;
 169         }
 170
 171         // check if we can enable DirectDraw acceleration
 172         if ((peDdGl->ddHalInfo.vmiData.pvPrimary) &&
 173             (DriverFunctions->EnableDirectDraw(peDdGl->dhpdev, &peDdGl->ddCallbacks, &peDdGl->ddSurfaceCallbacks, &peDdGl->ddPaletteCallbacks))&&
 174             !(gpEngFuncs.DxEngGetHdevData(peDdGl->hDev, DxEGShDevData_dd_flags) & CapOver_DisableD3DAccel)&&
 175             (peDdGl->ddHalInfo.dwSize == sizeof(DD_HALINFO)))
 176         {
 177             GlobalDriverData = peDdGl->ddHalInfo.lpD3DGlobalDriverData;
 178             HalCallbacks = peDdGl->ddHalInfo.lpD3DHALCallbacks;
 179             D3DBufCallbacks = peDdGl->ddHalInfo.lpD3DHALCallbacks;
 180
 181             if (GlobalDriverData && GlobalDriverData->dwSize == sizeof(D3DNTHAL_GLOBALDRIVERDATA))
 182                 memcpy(&peDdGl->d3dNtGlobalDriverData, GlobalDriverData, sizeof(D3DNTHAL_GLOBALDRIVERDATA));
 183
 184             if (HalCallbacks && HalCallbacks->dwSize == sizeof(D3DNTHAL_CALLBACKS))
 185                 memcpy(&peDdGl->d3dNtHalCallbacks, HalCallbacks, sizeof(D3DNTHAL_CALLBACKS));
 186
 187             if (D3DBufCallbacks && D3DBufCallbacks->dwSize == sizeof(DD_D3DBUFCALLBACKS))
 188                 memcpy(&peDdGl->d3dBufCallbacks, D3DBufCallbacks, sizeof(DD_D3DBUFCALLBACKS));
 189
 190             intDdGetAllDriverInfo(peDdGl);
 191
 192             // enable DirectDraw acceleration
 193             peDdGl->fl |= 1;
 194         }
 195         else
 196         {
 197             // failed - cleanup and exit
 198             if (peDdGl->pvmList)
 199                 EngFreeMem(peDdGl->pvmList);
 200             if (peDdGl->pdwFourCC)
 201                 EngFreeMem(peDdGl->pdwFourCC);
 202         }
 203     }
 204
 205     gpEngFuncs.DxEngUnlockHdev(peDdGl->hDev);
 206 }
 207
 208 PVOID
 209 FASTCALL
 210 intDdCreateDirectDrawLocal(HDEV hDev)
 211 {
 212     PEDD_DIRECTDRAW_GLOBAL peDdGl = NULL;
 213     PEDD_DIRECTDRAW_LOCAL peDdL = NULL;
 214     PDD_ENTRY AllocRet;
 215
 216     peDdGl = (PEDD_DIRECTDRAW_GLOBAL)gpEngFuncs.DxEngGetHdevData(hDev, DxEGShDevData_eddg);
 217
 218     AllocRet = DdHmgAlloc(sizeof(EDD_DIRECTDRAW_LOCAL), ObjType_DDLOCAL_TYPE, TRUE);
 219     if (!AllocRet)
 220         return NULL;
 221
 222     peDdL = (PEDD_DIRECTDRAW_LOCAL)AllocRet->pobj;
 223
 224     /* initialize DIRECTDRAW_LOCAL */
 225     peDdL->peDirectDrawLocal_prev = peDdGl->peDirectDrawLocalList;
 226     peDdL->hCreatorProcess = PsGetCurrentThreadProcessId();
 227     peDdL->Process = PsGetCurrentProcess();
 228
 229     // link DirectDrawGlobal and DirectDrawLocal
 230     peDdGl->peDirectDrawLocalList = peDdL;
 231     peDdL->peDirectDrawGlobal = peDdGl;
 232     peDdL->peDirectDrawGlobal2 = peDdGl;
 233
 234     gpEngFuncs.DxEngReferenceHdev(hDev);
 235
 236     InterlockedDecrement((VOID*)&peDdL->pobj.cExclusiveLock);
 237
 238     return peDdL->pobj.hHmgr;
 239 }
 240
 241 /*++
 242 * @name DxDdCreateDirectDrawObject
 243 * @implemented
 244 *
 245 * Function creates new DirectDraw object
 246 *
 247 * @param HDC hDC
 248 * Device context handle
 249 *
 250 * @return
 251 * Newly created DirectDraw object handle.
 252 *
 253 * @remarks.
 254 * Missing all AGP stuff
 255 *--*/
 256 DWORD
 257 NTAPI
 258 DxDdCreateDirectDrawObject(
 259     HDC hDC)
 260 {
 261     PDC pDC = NULL;
 262     HDEV hDev = NULL;
 263     DWORD_PTR retVal = 0;
 264
 265     pDC = gpEngFuncs.DxEngLockDC(hDC);
 266     if (!pDC)
 267         return 0;
 268
 269     // get driver hDev from DC
 270     hDev = (HDEV)gpEngFuncs.DxEngGetDCState(hDC, 3);
 271     if (!hDev) {
 272         gpEngFuncs.DxEngUnlockDC(pDC);
 273         return 0;
 274     }
 275
 276     // is this primary display?
 277     if (!gpEngFuncs.DxEngGetHdevData(hDev, DxEGShDevData_display))
 278     {
 279         gpEngFuncs.DxEngUnlockDC(pDC);
 280         return 0;
 281     }
 282
 283     gpEngFuncs.DxEngLockHdev(hDev);
 284
 285     // create object only for 8BPP and more
 286     if (gpEngFuncs.DxEngGetHdevData(hDev, DxEGShDevData_DitherFmt) >= BMF_8BPP)
 287         retVal = (DWORD_PTR)intDdCreateDirectDrawLocal(hDev);
 288
 289     gpEngFuncs.DxEngUnlockHdev(hDev);
 290     gpEngFuncs.DxEngUnlockDC(pDC);
 291     return retVal;
 292 }
 293
 294
 295 /*++
 296 * @name DxDdGetDriverInfo
 297 * @implemented
 298 *
 299 * Function queries the driver for DirectDraw and Direct3D functionality
 300 *
 301 * @param HANDLE DdHandle
 302 * Handle to DirectDraw object
 303 *
 304 * @param PDD_GETDRIVERINFODATA drvInfoData
 305 * Pointer to in/out driver info data structure
 306 *--*/
 307 DWORD
 308 NTAPI
 309 DxDdGetDriverInfo(HANDLE DdHandle, PDD_GETDRIVERINFODATA drvInfoData)
 310 {
 311     PEDD_DIRECTDRAW_LOCAL peDdL;
 312     PEDD_DIRECTDRAW_GLOBAL peDdGl;
 313     PVOID pInfo = NULL;
 314     DWORD dwInfoSize = 0;
 315     BYTE callbackStruct[1024];
 316     DWORD RetVal = FALSE;
 317
 318     peDdL = (PEDD_DIRECTDRAW_LOCAL)DdHmgLock(DdHandle, ObjType_DDLOCAL_TYPE, FALSE);
 319     if (!peDdL)
 320         return RetVal;
 321
 322     peDdGl = peDdL->peDirectDrawGlobal2;
 323
 324     // check VideoPort related callbacks
 325     if (peDdGl->dwCallbackFlags & EDDDGBL_VIDEOPORTCALLBACKS)
 326     {
 327         if (InlineIsEqualGUID(&drvInfoData->guidInfo, &GUID_VideoPortCallbacks))
 328         {
 329             dwInfoSize = sizeof(DD_VIDEOPORTCALLBACKS);
 330             pInfo = (VOID*)&peDdGl->ddVideoPortCallback;
 331         }
 332         if (InlineIsEqualGUID(&drvInfoData->guidInfo, &GUID_VideoPortCaps))
 333         {
 334             pInfo = (VOID*)peDdGl->lpDDVideoPortCaps;
 335             dwInfoSize = 72 * peDdGl->ddHalInfo.ddCaps.dwMaxVideoPorts;
 336         }
 337         if (InlineIsEqualGUID(&drvInfoData->guidInfo, &GUID_D3DCallbacks3))
 338         {
 339             dwInfoSize = sizeof(D3DNTHAL_CALLBACKS3);
 340             pInfo = (VOID*)&peDdGl->d3dNtHalCallbacks3;
 341         }
 342     }
 343
 344     // check ColorControl related callbacks
 345     if (peDdGl->dwCallbackFlags & EDDDGBL_COLORCONTROLCALLBACKS)
 346     {
 347         if (InlineIsEqualGUID(&drvInfoData->guidInfo, &GUID_ColorControlCallbacks))
 348         {
 349             dwInfoSize = sizeof(DD_COLORCONTROLCALLBACKS);
 350             pInfo = (VOID*)&peDdGl->ddColorControlCallbacks;
 351         }
 352         if (InlineIsEqualGUID(&drvInfoData->guidInfo, &GUID_NTCallbacks))
 353         {
 354             dwInfoSize = sizeof(DD_NTCALLBACKS);
 355             pInfo = (VOID*)&peDdGl->ddNtCallbacks;
 356         }
 357     }
 358
 359     // check Miscellaneous callbacks
 360     if (peDdGl->dwCallbackFlags & EDDDGBL_MISCCALLBACKS)
 361     {
 362         if (InlineIsEqualGUID(&drvInfoData->guidInfo, &GUID_MiscellaneousCallbacks))
 363         {
 364             dwInfoSize = sizeof(DD_MISCELLANEOUSCALLBACKS);
 365             pInfo = (VOID*)&peDdGl->ddMiscellanousCallbacks;
 366         }
 367         if (InlineIsEqualGUID(&drvInfoData->guidInfo, &GUID_DDMoreCaps))
 368         {
 369             dwInfoSize = sizeof(DD_MORECAPS);
 370             pInfo = &peDdGl->ddMoreCaps;
 371         }
 372     }
 373
 374     if (peDdGl->dwCallbackFlags & EDDDGBL_MISC2CALLBACKS &&
 375         InlineIsEqualGUID(&drvInfoData->guidInfo, &GUID_Miscellaneous2Callbacks))
 376     {
 377         dwInfoSize = sizeof(DD_MISCELLANEOUS2CALLBACKS);
 378         pInfo = (VOID*)&peDdGl->ddMiscellanous2Callbacks;
 379     }
 380
 381     if (peDdGl->dwCallbackFlags & EDDDGBL_MOTIONCOMPCALLBACKS &&
 382         InlineIsEqualGUID(&drvInfoData->guidInfo, &GUID_MotionCompCallbacks))
 383     {
 384         dwInfoSize = sizeof(DD_MOTIONCOMPCALLBACKS);
 385         pInfo = (VOID*)&peDdGl->ddMotionCompCallbacks;
 386     }
 387
 388     if (InlineIsEqualGUID(&drvInfoData->guidInfo, &GUID_KernelCaps) )
 389     {
 390         dwInfoSize = sizeof(DD_KERNELCALLBACKS);
 391         pInfo = &peDdGl->ddKernelCaps;
 392     }
 393
 394     if (InlineIsEqualGUID(&drvInfoData->guidInfo, &GUID_DDMoreSurfaceCaps))
 395     {
 396         dwInfoSize = sizeof(DDMORESURFACECAPS);
 397         pInfo = &peDdGl->ddMoreSurfaceCaps;
 398     }
 399
 400     if (dwInfoSize && pInfo)
 401     {
 402         gpEngFuncs.DxEngLockHdev(peDdGl->hDev);
 403         intDdGetDriverInfo(peDdGl, drvInfoData->guidInfo, &callbackStruct, dwInfoSize, &dwInfoSize);
 404         gpEngFuncs.DxEngUnlockHdev(peDdGl->hDev);
 405         memcpy(drvInfoData->lpvData, callbackStruct, dwInfoSize);
 406     }
 407
 408     InterlockedDecrement((VOID*)&peDdL->pobj.cExclusiveLock);
 409
 410     return TRUE;
 411 }
 412
 413 /*++
 414 * @name DxDdQueryDirectDrawObject
 415 * @implemented
 416 *
 417 * Function queries the DirectDraw object for its functionality
 418 *
 419 * @return
 420 * TRUE on success.
 421 *--*/
 422 BOOL
 423 NTAPI
 424 DxDdQueryDirectDrawObject(
 425     HANDLE DdHandle,
 426     DD_HALINFO* pDdHalInfo,
 427     DWORD* pCallBackFlags,
 428     LPD3DNTHAL_CALLBACKS pd3dNtHalCallbacks,
 429     LPD3DNTHAL_GLOBALDRIVERDATA pd3dNtGlobalDriverData,
 430     PDD_D3DBUFCALLBACKS pd3dBufCallbacks,
 431     LPDDSURFACEDESC pTextureFormats,
 432     DWORD* p8,
 433     VIDEOMEMORY* p9,
 434     DWORD* pdwNumFourCC,
 435     DWORD* pdwFourCC)
 436 {
 437     PEDD_DIRECTDRAW_LOCAL peDdL;
 438     PEDD_DIRECTDRAW_GLOBAL peDdGl;
 439     BOOL RetVal = FALSE;
 440
 441     if (!DdHandle)
 442         return RetVal;
 443
 444     if (!pDdHalInfo)
 445         return RetVal;
 446
 447     if (!gpEngFuncs.DxEngScreenAccessCheck())
 448         return RetVal;
 449
 450     peDdL = (PEDD_DIRECTDRAW_LOCAL)DdHmgLock(DdHandle, ObjType_DDLOCAL_TYPE, FALSE);
 451     if (peDdL)
 452     {
 453         peDdGl = peDdL->peDirectDrawGlobal2;
 454         gpEngFuncs.DxEngLockHdev(peDdGl->hDev);
 455
 456         memcpy(pDdHalInfo, &peDdGl->ddHalInfo, sizeof(DD_HALINFO));
 457
 458         if (pCallBackFlags)
 459         {
 460             *(DWORD*)pCallBackFlags = peDdGl->ddCallbacks.dwFlags;
 461             *(DWORD*)((ULONG_PTR)pCallBackFlags + 4) = peDdGl->ddSurfaceCallbacks.dwFlags;
 462             *(DWORD*)((ULONG_PTR)pCallBackFlags + 8) = peDdGl->ddPaletteCallbacks.dwFlags;
 463         }
 464
 465         if (pd3dNtHalCallbacks)
 466             memcpy(pd3dNtHalCallbacks, &peDdGl->d3dNtHalCallbacks, sizeof(peDdGl->d3dNtHalCallbacks));
 467
 468         if (pd3dNtGlobalDriverData)
 469             memcpy(pd3dNtGlobalDriverData, &peDdGl->d3dNtGlobalDriverData, sizeof(peDdGl->d3dNtGlobalDriverData));
 470
 471         if (pd3dBufCallbacks)
 472             memcpy(pd3dBufCallbacks, &peDdGl->d3dBufCallbacks, sizeof(peDdGl->d3dBufCallbacks));
 473
 474         if (pTextureFormats)
 475             memcpy(pTextureFormats, &peDdGl->d3dNtGlobalDriverData.lpTextureFormats, peDdGl->d3dNtGlobalDriverData.dwNumTextureFormats * sizeof(DDSURFACEDESC2));
 476
 477         if (pdwNumFourCC)
 478             *pdwNumFourCC = peDdGl->dwNumFourCC;
 479
 480         if (pdwFourCC)
 481             memcpy(pdwFourCC, &peDdGl->pdwFourCC, 4 * peDdGl->dwNumFourCC);
 482
 483         RetVal = TRUE;
 484
 485         gpEngFuncs.DxEngUnlockHdev(peDdGl->hDev);
 486
 487         InterlockedDecrement((VOID*)&peDdL->pobj.cExclusiveLock);
 488     }
 489
 490     return RetVal;
 491 }
 492
 493 /*++
 494 * @name DxDdEnableDirectDraw
 495 * @implemented
 496 *
 497 * Function enables DirectDraw
 498 *
 499 * @param PEDD_DIRECTDRAW_GLOBAL peDdGl
 500 * Pointer to destination DirectDrawGlobal structure
 501 *--*/
 502 BOOL
 503 NTAPI
 504 DxDdEnableDirectDraw(HANDLE hDev, BOOL arg2/*What for?*/)
 505 {
 506     PEDD_DIRECTDRAW_GLOBAL peDdGl = NULL;
 507
 508     if (gpEngFuncs.DxEngGetHdevData(hDev, DxEGShDevData_display))
 509     {
 510         peDdGl = (PEDD_DIRECTDRAW_GLOBAL)gpEngFuncs.DxEngGetHdevData(hDev, DxEGShDevData_eddg);
 511         peDdGl->hDev = hDev;
 512         peDdGl->bSuspended = FALSE;
 513         peDdGl->dhpdev = (PVOID)gpEngFuncs.DxEngGetHdevData(hDev, DxEGShDevData_dhpdev);
 514         intDdEnableDriver(peDdGl);
 515         return TRUE;
 516     }
 517
 518     return FALSE;
 519 }
 520
 521 /*++
 522 * @name DxDdReenableDirectDrawObject
 523 * @implemented
 524 *
 525 * Function re-enables DirectDraw object after mode switch
 526 *
 527 * @param HANDLE DdHandle
 528 * DirectDraw object handle
 529 *
 530 * @param PVOID p2
 531 * ???
 532 *
 533 * @return
 534 * TRUE on success.
 535 *
 536 * @remarks
 537 * Missing all AGP stuff and second parameter handling
 538 *--*/
 539 DWORD
 540 NTAPI
 541 DxDdReenableDirectDrawObject(
 542     HANDLE DdHandle,
 543     PVOID p2)
 544 {
 545     PEDD_DIRECTDRAW_LOCAL peDdL;
 546     PEDD_DIRECTDRAW_GLOBAL peDdGl;
 547     HDC hDC;
 548     DWORD RetVal = FALSE;
 549
 550     peDdL = (PEDD_DIRECTDRAW_LOCAL)DdHmgLock(DdHandle, ObjType_DDLOCAL_TYPE, FALSE);
 551
 552     if (!peDdL)
 553         return RetVal;
 554
 555     peDdGl = peDdL->peDirectDrawGlobal2;
 556
 557     hDC = gpEngFuncs.DxEngGetDesktopDC(0, FALSE, FALSE);
 558
 559     gpEngFuncs.DxEngLockShareSem();
 560     gpEngFuncs.DxEngLockHdev(peDdGl->hDev);
 561
 562     if (peDdGl->fl & 1 &&
 563         gpEngFuncs.DxEngGetDCState(hDC, 2) != 1 &&
 564         !(gpEngFuncs.DxEngGetHdevData(peDdGl->hDev, DxEGShDevData_OpenRefs)) &&
 565         !(gpEngFuncs.DxEngGetHdevData(peDdGl->hDev, DxEGShDevData_disable)) &&
 566         !(gpEngFuncs.DxEngGetHdevData(peDdGl->hDev, DxEGShDevData_dd_nCount)) &&
 567         gpEngFuncs.DxEngGetHdevData(peDdGl->hDev, DxEGShDevData_DitherFmt) >= BMF_8BPP)
 568     {
 569         // reset acceleration and suspend flags
 570         peDdGl->fl &= 0xFFFFFFFD;
 571         peDdGl->bSuspended = 0;
 572         peDdGl->dhpdev = (PVOID)gpEngFuncs.DxEngGetHdevData(peDdGl->hDev, DxEGShDevData_dhpdev);
 573
 574         RetVal = TRUE;
 575         // FIXME AGP Stuff
 576     }
 577
 578     gpEngFuncs.DxEngUnlockHdev(peDdGl->hDev);
 579     gpEngFuncs.DxEngUnlockShareSem();
 580
 581     InterlockedDecrement((VOID*)&peDdL->pobj.cExclusiveLock);
 582
 583     return RetVal;
 584 }
 585
 586 PEDD_SURFACE
 587 NTAPI
 588 intDdCreateNewSurfaceObject(PEDD_DIRECTDRAW_LOCAL peDdL, HANDLE hDirectDrawLocal, PDD_SURFACE_GLOBAL pDdSurfGlob, PDD_SURFACE_LOCAL pDdSurfLoc, PDD_SURFACE_MORE pDdSurfMore)
 589 {
 590     PEDD_SURFACE pSurface = NULL;
 591
 592     // first check if we can assign it from current ddHandle
 593     if (hDirectDrawLocal)
 594     {
 595         pSurface = (PEDD_SURFACE)DdHmgLock(hDirectDrawLocal, ObjType_DDSURFACE_TYPE, FALSE);
 596         // check if surface is locked and belongs to correct DirectDrawLocal
 597         if ((pSurface)&&((pSurface->peDirectDrawLocal != peDdL)||(!pSurface->hSecure)))
 598         {
 599             InterlockedDecrement((VOID*)&peDdL->pobj.cExclusiveLock);
 600             return NULL;
 601         }
 602     }
 603
 604     // if surface not found from ddHandle or ddHandle not provided
 605     if (!pSurface)
 606     {
 607         // create new surface object
 608         pSurface = (PEDD_SURFACE)DdHmgAlloc(sizeof(EDD_SURFACE), ObjType_DDSURFACE_TYPE, TRUE);
 609         if (pSurface)
 610         {
 611             pSurface->ddsSurfaceLocal.lpGbl = &pSurface->ddsSurfaceGlobal;
 612             pSurface->ddsSurfaceLocal.lpSurfMore = &pSurface->ddsSurfaceMore;
 613             pSurface->ddsSurfaceInt.lpLcl = &pSurface->ddsSurfaceLocal;
 614             pSurface->peDirectDrawLocal = peDdL;
 615             pSurface->peDirectDrawGlobalNext = peDdL->peDirectDrawGlobal2;
 616             pSurface->ldev = gpEngFuncs.DxEngGetHdevData(pSurface->peDirectDrawGlobalNext->hDev, DxEGShDevData_ldev);
 617             pSurface->gdev = gpEngFuncs.DxEngGetHdevData(pSurface->peDirectDrawGlobalNext->hDev, DxEGShDevData_GDev);
 618             pSurface->hSecure = (VOID*)1;
 619         }
 620     }
 621
 622     if (pSurface)
 623     {
 624         pSurface->ddsSurfaceGlobal.fpVidMem = pDdSurfGlob->fpVidMem;
 625         pSurface->ddsSurfaceGlobal.lPitch = pDdSurfGlob->lPitch;
 626         pSurface->ddsSurfaceGlobal.wWidth = pDdSurfGlob->wWidth;
 627         pSurface->ddsSurfaceGlobal.wHeight = pDdSurfGlob->wHeight;
 628         pSurface->wWidth = pDdSurfGlob->wWidth;
 629         pSurface->wHeight = pDdSurfGlob->wHeight;
 630         memcpy(&pSurface->ddsSurfaceGlobal.ddpfSurface, &pDdSurfGlob->ddpfSurface, sizeof(pSurface->ddsSurfaceGlobal.ddpfSurface));
 631         pSurface->ddsSurfaceLocal.ddsCaps.dwCaps = pDdSurfLoc->ddsCaps.dwCaps;
 632         pSurface->ddsSurfaceMore.ddsCapsEx.dwCaps2 = pDdSurfMore->ddsCapsEx.dwCaps2;
 633         pSurface->ddsSurfaceMore.ddsCapsEx.dwCaps3 = pDdSurfMore->ddsCapsEx.dwCaps3;
 634         pSurface->ddsSurfaceMore.ddsCapsEx.dwCaps4 = pDdSurfMore->ddsCapsEx.dwCaps4;
 635         pSurface->ddsSurfaceMore.dwSurfaceHandle = pDdSurfMore->dwSurfaceHandle;
 636         pSurface->hSecure = (VOID*)1;
 637
 638         peDdL->peSurface_DdList = pSurface;
 639         peDdL->hSurface = (ULONG_PTR)pSurface->pobj.hHmgr;
 640     }
 641
 642     return pSurface;
 643 }
 644
 645 HANDLE
 646 NTAPI
 647 DxDdCreateSurfaceObject(HANDLE hDirectDrawLocal,
 648                         HANDLE hSurface,
 649                         PDD_SURFACE_LOCAL puSurfaceLocal,
 650                         PDD_SURFACE_MORE puSurfaceMore,
 651                         PDD_SURFACE_GLOBAL puSurfaceGlobal,
 652                         BOOL bComplete)
 653 {
 654     HANDLE RetVal = FALSE;
 655     PEDD_DIRECTDRAW_LOCAL peDdL = NULL;
 656     PEDD_SURFACE pDdSurface = NULL;
 657
 658     peDdL = (PEDD_DIRECTDRAW_LOCAL)DdHmgLock(hDirectDrawLocal, ObjType_DDLOCAL_TYPE, FALSE);
 659
 660     if (!peDdL)
 661         return RetVal;
 662
 663     pDdSurface = intDdCreateNewSurfaceObject(peDdL, hSurface, puSurfaceGlobal, puSurfaceLocal, puSurfaceMore);
 664     if (!pDdSurface)
 665     {
 666         InterlockedDecrement((VOID*)&peDdL->pobj.cExclusiveLock);
 667         return RetVal;
 668     }
 669
 670     RetVal = pDdSurface->pobj.hHmgr;
 671
 672     InterlockedDecrement((VOID*)&pDdSurface->pobj.cExclusiveLock);
 673     InterlockedDecrement((VOID*)&peDdL->pobj.cExclusiveLock);
 674
 675     return RetVal;
 676 }