reactos/lib/oleaut32/safearray.c

   1 /*************************************************************************
   2  * OLE Automation - SafeArray
   3  *
   4  * This file contains the implementation of the SafeArray functions.
   5  *
   6  * Copyright 1999 Sylvain St-Germain
   7  * Copyright 2002-2003 Marcus Meissner
   8  * Copyright 2003 Jon Griffiths
   9  *
  10  * This library is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU Lesser General Public
  12  * License as published by the Free Software Foundation; either
  13  * version 2.1 of the License, or (at your option) any later version.
  14  *
  15  * This library is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18  * Lesser General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU Lesser General Public
  21  * License along with this library; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  23  */
  24 /* Memory Layout of a SafeArray:
  25  *
  26  * -0x10: start of memory.
  27  * -0x10: GUID for VT_DISPATCH and VT_UNKNOWN safearrays (if FADF_HAVEIID)
  28  * -0x04: DWORD varianttype; (for all others, except VT_RECORD) (if FADF_HAVEVARTYPE)
  29  *  -0x4: IRecordInfo* iface;  (if FADF_RECORD, for VT_RECORD (can be NULL))
  30  *  0x00: SAFEARRAY,
  31  *  0x10: SAFEARRAYBOUNDS[0...]
  32  */
  33
  34 #include "config.h"
  35
  36 #include <string.h>
  37 #include <stdarg.h>
  38 #include <stdio.h>
  39
  40 #define COBJMACROS
  41
  42 #include "windef.h"
  43 #include "winerror.h"
  44 #include "winbase.h"
  45 #include "variant.h"
  46 #include "wine/debug.h"
  47
  48 WINE_DEFAULT_DEBUG_CHANNEL(variant);
  49
  50 /************************************************************************
  51  * SafeArray {OLEAUT32}
  52  *
  53  * NOTES
  54  * The SafeArray data type provides the underlying interface for Ole
  55  * Automations arrays, used for example to represent array types in
  56  * Visual Basic(tm) and to gather user defined parameters for invocation through
  57  * an IDispatch interface.
  58  *
  59  * Safe arrays provide bounds checking and automatically manage the data
  60  * types they contain, for example handing reference counting and copying
  61  * of interface pointers. User defined types can be stored in arrays
  62  * using the IRecordInfo interface.
  63  *
  64  * There are two types of SafeArray, normal and vectors. Normal arrays can have
  65  * multiple dimensions and the data for the array is allocated separately from
  66  * the array header. This is the most flexible type of array. Vectors, on the
  67  * other hand, are fixed in size and consist of a single allocated block, and a
  68  * single dimension.
  69  *
  70  * DATATYPES
  71  * The following types of data can be stored within a SafeArray.
  72  * Numeric:
  73  *|  VT_I1, VT_UI1, VT_I2, VT_UI2, VT_I4, VT_UI4, VT_I8, VT_UI8, VT_INT, VT_UINT,
  74  *|  VT_R4, VT_R8, VT_CY, VT_DECIMAL
  75  * Interfaces:
  76  *|  VT_DISPATCH, VT_UNKNOWN, VT_RECORD
  77  * Other:
  78  *|  VT_VARIANT, VT_INT_PTR, VT_UINT_PTR, VT_BOOL, VT_ERROR, VT_DATE, VT_BSTR
  79  *
  80  * FUNCTIONS
  81  *  BstrFromVector()
  82  *  VectorFromBstr()
  83  */
  84
  85 /* Undocumented hidden space before the start of a SafeArray descriptor */
  86 #define SAFEARRAY_HIDDEN_SIZE sizeof(GUID)
  87
  88 /* Allocate memory */
  89 static inline LPVOID SAFEARRAY_Malloc(ULONG ulSize)
  90 {
  91   /* FIXME: Memory should be allocated and freed using a per-thread IMalloc
  92    *        instance returned from CoGetMalloc().
  93    */
  94   return HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, ulSize);
  95 }
  96
  97 /* Free memory */
  98 static inline BOOL SAFEARRAY_Free(LPVOID lpData)
  99 {
 100   return HeapFree(GetProcessHeap(), 0, lpData);
 101 }
 102
 103 /* Get the size of a supported VT type (0 means unsupported) */
 104 static DWORD SAFEARRAY_GetVTSize(VARTYPE vt)
 105 {
 106   switch (vt)
 107   {
 108     case VT_I1:
 109     case VT_UI1:      return sizeof(BYTE);
 110     case VT_BOOL:
 111     case VT_I2:
 112     case VT_UI2:      return sizeof(SHORT);
 113     case VT_I4:
 114     case VT_UI4:
 115     case VT_R4:
 116     case VT_ERROR:    return sizeof(LONG);
 117     case VT_R8:
 118     case VT_I8:
 119     case VT_UI8:      return sizeof(LONG64);
 120     case VT_INT:
 121     case VT_UINT:     return sizeof(INT);
 122     case VT_INT_PTR:
 123     case VT_UINT_PTR: return sizeof(UINT_PTR);
 124     case VT_CY:       return sizeof(CY);
 125     case VT_DATE:     return sizeof(DATE);
 126     case VT_BSTR:     return sizeof(BSTR);
 127     case VT_DISPATCH: return sizeof(LPDISPATCH);
 128     case VT_VARIANT:  return sizeof(VARIANT);
 129     case VT_UNKNOWN:  return sizeof(LPUNKNOWN);
 130     case VT_DECIMAL:  return sizeof(DECIMAL);
 131     /* Note: Return a non-zero size to indicate vt is valid. The actual size
 132      * of a UDT is taken from the result of IRecordInfo_GetSize().
 133      */
 134     case VT_RECORD:   return 32;
 135   }
 136   return 0;
 137 }
 138
 139 /* Set the hidden data for an array */
 140 static inline void SAFEARRAY_SetHiddenDWORD(SAFEARRAY* psa, DWORD dw)
 141 {
 142   /* Implementation data is stored in the 4 bytes before the header */
 143   LPDWORD lpDw = (LPDWORD)psa;
 144   lpDw[-1] = dw;
 145 }
 146
 147 /* Get the hidden data from an array */
 148 static inline DWORD SAFEARRAY_GetHiddenDWORD(SAFEARRAY* psa)
 149 {
 150   LPDWORD lpDw = (LPDWORD)psa;
 151   return lpDw[-1];
 152 }
 153
 154 /* Get the number of cells in a SafeArray */
 155 static ULONG SAFEARRAY_GetCellCount(const SAFEARRAY *psa)
 156 {
 157   const SAFEARRAYBOUND* psab = psa->rgsabound;
 158   USHORT cCount = psa->cDims;
 159   ULONG ulNumCells = 1;
 160
 161   while (cCount--)
 162   {
 163     /* This is a valid bordercase. See testcases. -Marcus */
 164     if (!psab->cElements)
 165       return 0;
 166     ulNumCells *= psab->cElements;
 167     psab++;
 168   }
 169   return ulNumCells;
 170 }
 171
 172 /* Get the 0 based index of an index into a dimension */
 173 static inline ULONG SAFEARRAY_GetDimensionIndex(SAFEARRAYBOUND *psab, ULONG ulIndex)
 174 {
 175   return ulIndex - psab->lLbound;
 176 }
 177
 178 /* Get the size of a dimension in cells */
 179 static inline ULONG SAFEARRAY_GetDimensionCells(SAFEARRAY *psa, ULONG ulDim)
 180 {
 181   ULONG size = psa->rgsabound[0].cElements;
 182
 183   while (ulDim)
 184   {
 185     size *= psa->rgsabound[ulDim].cElements;
 186     ulDim--;
 187   }
 188   return size;
 189 }
 190
 191 /* Allocate a descriptor for an array */
 192 static HRESULT SAFEARRAY_AllocDescriptor(ULONG ulSize, SAFEARRAY **ppsaOut)
 193 {
 194   *ppsaOut = (SAFEARRAY*)((char*)SAFEARRAY_Malloc(ulSize + SAFEARRAY_HIDDEN_SIZE) + SAFEARRAY_HIDDEN_SIZE);
 195
 196   if (!*ppsaOut)
 197     return E_UNEXPECTED;
 198
 199   return S_OK;
 200 }
 201
 202 /* Set the features of an array */
 203 static void SAFEARRAY_SetFeatures(VARTYPE vt, SAFEARRAY *psa)
 204 {
 205   /* Set the IID if we have one, otherwise set the type */
 206   if (vt == VT_DISPATCH)
 207   {
 208     psa->fFeatures = FADF_HAVEIID;
 209     SafeArraySetIID(psa, &IID_IDispatch);
 210   }
 211   else if (vt == VT_UNKNOWN)
 212   {
 213     psa->fFeatures = FADF_HAVEIID;
 214     SafeArraySetIID(psa, &IID_IUnknown);
 215   }
 216   else if (vt == VT_RECORD)
 217     psa->fFeatures = FADF_RECORD;
 218   else
 219   {
 220     psa->fFeatures = FADF_HAVEVARTYPE;
 221     SAFEARRAY_SetHiddenDWORD(psa, vt);
 222   }
 223 }
 224
 225 /* Create an array */
 226 static SAFEARRAY* SAFEARRAY_Create(VARTYPE vt, UINT cDims, SAFEARRAYBOUND *rgsabound, ULONG ulSize)
 227 {
 228   SAFEARRAY *psa = NULL;
 229
 230   if (!rgsabound)
 231     return NULL;
 232
 233   if (SUCCEEDED(SafeArrayAllocDescriptorEx(vt, cDims, &psa)))
 234   {
 235     switch (vt)
 236     {
 237       case VT_BSTR:     psa->fFeatures |= FADF_BSTR; break;
 238       case VT_UNKNOWN:  psa->fFeatures |= FADF_UNKNOWN; break;
 239       case VT_DISPATCH: psa->fFeatures |= FADF_DISPATCH; break;
 240       case VT_VARIANT:  psa->fFeatures |= FADF_VARIANT; break;
 241     }
 242
 243     memcpy(psa->rgsabound, rgsabound, cDims * sizeof(SAFEARRAYBOUND));
 244
 245     if (ulSize)
 246       psa->cbElements = ulSize;
 247
 248     if (FAILED(SafeArrayAllocData(psa)))
 249     {
 250       SafeArrayDestroyDescriptor(psa);
 251       psa = NULL;
 252     }
 253   }
 254   return psa;
 255 }
 256
 257 /* Create an array as a vector */
 258 static SAFEARRAY* SAFEARRAY_CreateVector(VARTYPE vt, LONG lLbound, ULONG cElements, ULONG ulSize)
 259 {
 260   SAFEARRAY *psa = NULL;
 261
 262   if (ulSize || (vt == VT_RECORD))
 263   {
 264     /* Allocate the header and data together */
 265     if (SUCCEEDED(SAFEARRAY_AllocDescriptor(sizeof(SAFEARRAY) + ulSize * cElements, &psa)))
 266     {
 267       SAFEARRAY_SetFeatures(vt, psa);
 268
 269       psa->cDims = 1;
 270       psa->fFeatures |= FADF_CREATEVECTOR;
 271       psa->pvData = &psa[1]; /* Data follows the header */
 272       psa->cbElements = ulSize;
 273       psa->rgsabound[0].cElements = cElements;
 274       psa->rgsabound[0].lLbound = lLbound;
 275
 276       switch (vt)
 277       {
 278         case VT_BSTR:     psa->fFeatures |= FADF_BSTR; break;
 279         case VT_UNKNOWN:  psa->fFeatures |= FADF_UNKNOWN; break;
 280         case VT_DISPATCH: psa->fFeatures |= FADF_DISPATCH; break;
 281         case VT_VARIANT:  psa->fFeatures |= FADF_VARIANT; break;
 282       }
 283     }
 284   }
 285   return psa;
 286 }
 287
 288 /* Free data items in an array */
 289 static HRESULT SAFEARRAY_DestroyData(SAFEARRAY *psa, ULONG ulStartCell)
 290 {
 291   if (psa->pvData && !(psa->fFeatures & FADF_DATADELETED))
 292   {
 293     ULONG ulCellCount = SAFEARRAY_GetCellCount(psa);
 294
 295     if (ulStartCell > ulCellCount) {
 296       FIXME("unexpted ulcellcount %ld, start %ld\n",ulCellCount,ulStartCell);
 297       return E_UNEXPECTED;
 298     }
 299
 300     ulCellCount -= ulStartCell;
 301
 302     if (psa->fFeatures & (FADF_UNKNOWN|FADF_DISPATCH))
 303     {
 304       LPUNKNOWN *lpUnknown = (LPUNKNOWN *)psa->pvData + ulStartCell * psa->cbElements;
 305
 306       while(ulCellCount--)
 307       {
 308         if (*lpUnknown)
 309           IUnknown_Release(*lpUnknown);
 310         lpUnknown++;
 311       }
 312     }
 313     else if (psa->fFeatures & (FADF_RECORD))
 314     {
 315       IRecordInfo *lpRecInfo;
 316
 317       if (SUCCEEDED(SafeArrayGetRecordInfo(psa, &lpRecInfo)))
 318       {
 319         PBYTE pRecordData = (PBYTE)psa->pvData;
 320         while(ulCellCount--)
 321         {
 322           IRecordInfo_RecordClear(lpRecInfo, pRecordData);
 323           pRecordData += psa->cbElements;
 324         }
 325         IRecordInfo_Release(lpRecInfo);
 326       }
 327     }
 328     else if (psa->fFeatures & FADF_BSTR)
 329     {
 330       BSTR* lpBstr = (BSTR*)psa->pvData + ulStartCell * psa->cbElements;
 331
 332       while(ulCellCount--)
 333       {
 334         if (*lpBstr)
 335           SysFreeString(*lpBstr);
 336         lpBstr++;
 337       }
 338     }
 339     else if (psa->fFeatures & FADF_VARIANT)
 340     {
 341       VARIANT* lpVariant = (VARIANT*)psa->pvData + ulStartCell * psa->cbElements;
 342
 343       while(ulCellCount--)
 344       {
 345         HRESULT hRet = VariantClear(lpVariant);
 346
 347         if (FAILED(hRet)) FIXME("VariantClear of element failed!\n");
 348         lpVariant++;
 349       }
 350     }
 351   }
 352   return S_OK;
 353 }
 354
 355 /* Copy data items from one array to another */
 356 static HRESULT SAFEARRAY_CopyData(SAFEARRAY *psa, SAFEARRAY *dest)
 357 {
 358   if (!psa->pvData || !dest->pvData || psa->fFeatures & FADF_DATADELETED)
 359     return E_INVALIDARG;
 360   else
 361   {
 362     ULONG ulCellCount = SAFEARRAY_GetCellCount(psa);
 363
 364     dest->fFeatures = (dest->fFeatures & FADF_CREATEVECTOR) |
 365                       (psa->fFeatures & ~(FADF_CREATEVECTOR|FADF_DATADELETED));
 366
 367     if (psa->fFeatures & FADF_VARIANT)
 368     {
 369       VARIANT* lpVariant = (VARIANT*)psa->pvData;
 370       VARIANT* lpDest = (VARIANT*)dest->pvData;
 371
 372       while(ulCellCount--)
 373       {
 374         HRESULT hRet;
 375
 376         hRet = VariantCopy(lpDest, lpVariant);
 377         if (FAILED(hRet)) FIXME("VariantCopy failed with 0x%lx\n", hRet);
 378         lpVariant++;
 379         lpDest++;
 380       }
 381     }
 382     else if (psa->fFeatures & FADF_BSTR)
 383     {
 384       BSTR* lpBstr = (BSTR*)psa->pvData;
 385       BSTR* lpDest = (BSTR*)dest->pvData;
 386
 387       while(ulCellCount--)
 388       {
 389         if (*lpBstr)
 390         {
 391           *lpDest = SysAllocStringByteLen((char*)*lpBstr, SysStringByteLen(*lpBstr));
 392           if (!*lpDest)
 393             return E_OUTOFMEMORY;
 394         }
 395         else
 396           *lpDest = NULL;
 397         lpBstr++;
 398         lpDest++;
 399       }
 400     }
 401     else
 402     {
 403       /* Copy the data over */
 404       memcpy(dest->pvData, psa->pvData, ulCellCount * psa->cbElements);
 405
 406       if (psa->fFeatures & (FADF_UNKNOWN|FADF_DISPATCH))
 407       {
 408         LPUNKNOWN *lpUnknown = (LPUNKNOWN *)dest->pvData;
 409
 410         while(ulCellCount--)
 411         {
 412           if (*lpUnknown)
 413             IUnknown_AddRef(*lpUnknown);
 414           lpUnknown++;
 415         }
 416       }
 417     }
 418
 419     if (psa->fFeatures & FADF_RECORD)
 420     {
 421       IRecordInfo* pRecInfo = NULL;
 422
 423       SafeArrayGetRecordInfo(psa, &pRecInfo);
 424       SafeArraySetRecordInfo(dest, pRecInfo);
 425
 426       if (pRecInfo)
 427       {
 428         /* Release because Get() adds a reference */
 429         IRecordInfo_Release(pRecInfo);
 430       }
 431     }
 432     else if (psa->fFeatures & FADF_HAVEIID)
 433     {
 434       GUID guid;
 435       SafeArrayGetIID(psa, &guid);
 436       SafeArraySetIID(dest, &guid);
 437     }
 438     else if (psa->fFeatures & FADF_HAVEVARTYPE)
 439     {
 440       SAFEARRAY_SetHiddenDWORD(dest, SAFEARRAY_GetHiddenDWORD(psa));
 441     }
 442   }
 443   return S_OK;
 444 }
 445
 446 /*************************************************************************
 447  *              SafeArrayAllocDescriptor (OLEAUT32.36)
 448  *
 449  * Allocate and initialise a descriptor for a SafeArray.
 450  *
 451  * PARAMS
 452  *  cDims   [I] Number of dimensions of the array
 453  *  ppsaOut [O] Destination for new descriptor
 454  *
 455  * RETURNS
 456  * Success: S_OK. ppsaOut is filled with a newly allocated descriptor.
 457  * Failure: An HRESULT error code indicating the error.
 458  *
 459  * NOTES
 460  * See SafeArray.
 461  */
 462 HRESULT WINAPI SafeArrayAllocDescriptor(UINT cDims, SAFEARRAY **ppsaOut)
 463 {
 464   LONG allocSize;
 465
 466   TRACE("(%d,%p)\n", cDims, ppsaOut);
 467
 468   if (!cDims || cDims >= 0x10000) /* Maximum 65535 dimensions */
 469     return E_INVALIDARG;
 470
 471   if (!ppsaOut)
 472     return E_POINTER;
 473
 474   /* We need enough space for the header and its bounds */
 475   allocSize = sizeof(SAFEARRAY) + sizeof(SAFEARRAYBOUND) * (cDims - 1);
 476
 477   if (FAILED(SAFEARRAY_AllocDescriptor(allocSize, ppsaOut)))
 478     return E_UNEXPECTED;
 479
 480   (*ppsaOut)->cDims = cDims;
 481
 482   TRACE("(%d): %lu bytes allocated for descriptor.\n", cDims, allocSize);
 483   return S_OK;
 484 }
 485
 486 /*************************************************************************
 487  *              SafeArrayAllocDescriptorEx (OLEAUT32.41)
 488  *
 489  * Allocate and initialise a descriptor for a SafeArray of a given type.
 490  *
 491  * PARAMS
 492  *  vt      [I] The type of items to store in the array
 493  *  cDims   [I] Number of dimensions of the array
 494  *  ppsaOut [O] Destination for new descriptor
 495  *
 496  * RETURNS
 497  *  Success: S_OK. ppsaOut is filled with a newly allocated descriptor.
 498  *  Failure: An HRESULT error code indicating the error.
 499  *
 500  * NOTES
 501  *  - This function does not chack that vt is an allowed VARTYPE.
 502  *  - Unlike SafeArrayAllocDescriptor(), vt is associated with the array.
 503  *  See SafeArray.
 504  */
 505 HRESULT WINAPI SafeArrayAllocDescriptorEx(VARTYPE vt, UINT cDims, SAFEARRAY **ppsaOut)
 506 {
 507   ULONG cbElements;
 508   HRESULT hRet = E_UNEXPECTED;
 509
 510   TRACE("(%d->%s,%d,%p)\n", vt, debugstr_vt(vt), cDims, ppsaOut);
 511
 512   cbElements = SAFEARRAY_GetVTSize(vt);
 513   if (!cbElements)
 514     WARN("Creating a descriptor with an invalid VARTYPE!\n");
 515
 516   hRet = SafeArrayAllocDescriptor(cDims, ppsaOut);
 517
 518   if (SUCCEEDED(hRet))
 519   {
 520     SAFEARRAY_SetFeatures(vt, *ppsaOut);
 521     (*ppsaOut)->cbElements = cbElements;
 522   }
 523   return hRet;
 524 }
 525
 526 /*************************************************************************
 527  *              SafeArrayAllocData (OLEAUT32.37)
 528  *
 529  * Allocate the data area of a SafeArray.
 530  *
 531  * PARAMS
 532  *  psa [I] SafeArray to allocate the data area of.
 533  *
 534  * RETURNS
 535  *  Success: S_OK. The data area is allocated and initialised.
 536  *  Failure: An HRESULT error code indicating the error.
 537  *
 538  * NOTES
 539  *  See SafeArray.
 540  */
 541 HRESULT WINAPI SafeArrayAllocData(SAFEARRAY *psa)
 542 {
 543   HRESULT hRet = E_INVALIDARG;
 544
 545   TRACE("(%p)\n", psa);
 546
 547   if (psa)
 548   {
 549     ULONG ulSize = SAFEARRAY_GetCellCount(psa);
 550
 551     hRet = E_OUTOFMEMORY;
 552
 553     if (psa->cbElements)
 554     {
 555       psa->pvData = SAFEARRAY_Malloc(ulSize * psa->cbElements);
 556
 557       if (psa->pvData)
 558       {
 559         hRet = S_OK;
 560         TRACE("%lu bytes allocated for data at %p (%lu objects).\n",
 561               ulSize * psa->cbElements, psa->pvData, ulSize);
 562       }
 563     }
 564   }
 565   return hRet;
 566 }
 567
 568 /*************************************************************************
 569  *              SafeArrayCreate (OLEAUT32.15)
 570  *
 571  * Create a new SafeArray.
 572  *
 573  * PARAMS
 574  *  vt        [I] Type to store in the safe array
 575  *  cDims     [I] Number of array dimensions
 576  *  rgsabound [I] Bounds of the array dimensions
 577  *
 578  * RETURNS
 579  *  Success: A pointer to a new array object.
 580  *  Failure: NULL, if any parameter is invalid or memory allocation fails.
 581  *
 582  * NOTES
 583  *  Win32 allows arrays with 0 sized dimensions. This bug is not reproduced
 584  *  in the Wine implementation.
 585  *  See SafeArray.
 586  */
 587 SAFEARRAY* WINAPI SafeArrayCreate(VARTYPE vt, UINT cDims, SAFEARRAYBOUND *rgsabound)
 588 {
 589   TRACE("(%d->%s,%d,%p)\n", vt, debugstr_vt(vt), cDims, rgsabound);
 590
 591   if (vt == VT_RECORD)
 592     return NULL;
 593
 594   return SAFEARRAY_Create(vt, cDims, rgsabound, 0);
 595 }
 596
 597 /*************************************************************************
 598  *              SafeArrayCreateEx (OLEAUT32.15)
 599  *
 600  * Create a new SafeArray.
 601  *
 602  * PARAMS
 603  *  vt        [I] Type to store in the safe array
 604  *  cDims     [I] Number of array dimensions
 605  *  rgsabound [I] Bounds of the array dimensions
 606  *  pvExtra   [I] Extra data
 607  *
 608  * RETURNS
 609  *  Success: A pointer to a new array object.
 610  *  Failure: NULL, if any parameter is invalid or memory allocation fails.
 611  *
 612  * NOTES
 613  * See SafeArray.
 614  */
 615 SAFEARRAY* WINAPI SafeArrayCreateEx(VARTYPE vt, UINT cDims, SAFEARRAYBOUND *rgsabound, LPVOID pvExtra)
 616 {
 617   ULONG ulSize = 0;
 618   IRecordInfo* iRecInfo = (IRecordInfo*)pvExtra;
 619   SAFEARRAY* psa;
 620
 621   TRACE("(%d->%s,%d,%p,%p)\n", vt, debugstr_vt(vt), cDims, rgsabound, pvExtra);
 622
 623   if (vt == VT_RECORD)
 624   {
 625     if  (!iRecInfo)
 626       return NULL;
 627     IRecordInfo_GetSize(iRecInfo, &ulSize);
 628   }
 629   psa = SAFEARRAY_Create(vt, cDims, rgsabound, ulSize);
 630
 631   if (pvExtra)
 632   {
 633     switch(vt)
 634     {
 635       case VT_RECORD:
 636         SafeArraySetRecordInfo(psa, pvExtra);
 637         break;
 638       case VT_UNKNOWN:
 639       case VT_DISPATCH:
 640         SafeArraySetIID(psa, pvExtra);
 641         break;
 642     }
 643   }
 644   return psa;
 645 }
 646
 647 /************************************************************************
 648  *              SafeArrayCreateVector (OLEAUT32.411)
 649  *
 650  * Create a one dimensional, contiguous SafeArray.
 651  *
 652  * PARAMS
 653  *  vt        [I] Type to store in the safe array
 654  *  lLbound   [I] Lower bound of the array
 655  *  cElements [I] Number of elements in the array
 656  *
 657  * RETURNS
 658  *  Success: A pointer to a new array object.
 659  *  Failure: NULL, if any parameter is invalid or memory allocation fails.
 660  *
 661  * NOTES
 662  * See SafeArray.
 663  */
 664 SAFEARRAY* WINAPI SafeArrayCreateVector(VARTYPE vt, LONG lLbound, ULONG cElements)
 665 {
 666   TRACE("(%d->%s,%ld,%ld\n", vt, debugstr_vt(vt), lLbound, cElements);
 667
 668   if (vt == VT_RECORD)
 669     return NULL;
 670
 671   return SAFEARRAY_CreateVector(vt, lLbound, cElements, SAFEARRAY_GetVTSize(vt));
 672 }
 673
 674 /************************************************************************
 675  *              SafeArrayCreateVectorEx (OLEAUT32.411)
 676  *
 677  * Create a one dimensional, contiguous SafeArray.
 678  *
 679  * PARAMS
 680  *  vt        [I] Type to store in the safe array
 681  *  lLbound   [I] Lower bound of the array
 682  *  cElements [I] Number of elements in the array
 683  *  pvExtra   [I] Extra data
 684  *
 685  * RETURNS
 686  *  Success: A pointer to a new array object.
 687  *  Failure: NULL, if any parameter is invalid or memory allocation fails.
 688  *
 689  * NOTES
 690  * See SafeArray.
 691  */
 692 SAFEARRAY* WINAPI SafeArrayCreateVectorEx(VARTYPE vt, LONG lLbound, ULONG cElements, LPVOID pvExtra)
 693 {
 694   ULONG ulSize;
 695   IRecordInfo* iRecInfo = (IRecordInfo*)pvExtra;
 696   SAFEARRAY* psa;
 697
 698  TRACE("(%d->%s,%ld,%ld,%p\n", vt, debugstr_vt(vt), lLbound, cElements, pvExtra);
 699
 700   if (vt == VT_RECORD)
 701   {
 702     if  (!iRecInfo)
 703       return NULL;
 704     IRecordInfo_GetSize(iRecInfo, &ulSize);
 705   }
 706   else
 707     ulSize = SAFEARRAY_GetVTSize(vt);
 708
 709   psa = SAFEARRAY_CreateVector(vt, lLbound, cElements, ulSize);
 710
 711   if (pvExtra)
 712   {
 713     switch(vt)
 714     {
 715       case VT_RECORD:
 716         SafeArraySetRecordInfo(psa, iRecInfo);
 717         break;
 718       case VT_UNKNOWN:
 719       case VT_DISPATCH:
 720         SafeArraySetIID(psa, pvExtra);
 721         break;
 722     }
 723   }
 724   return psa;
 725 }
 726
 727 /*************************************************************************
 728  *              SafeArrayDestroyDescriptor (OLEAUT32.38)
 729  *
 730  * Destroy a SafeArray.
 731  *
 732  * PARAMS
 733  *  psa [I] SafeArray to destroy.
 734  *
 735  * RETURNS
 736  *  Success: S_OK. The resources used by the array are freed.
 737  *  Failure: An HRESULT error code indicating the error.
 738  *
 739  * NOTES
 740  * See SafeArray.
 741  */
 742 HRESULT WINAPI SafeArrayDestroyDescriptor(SAFEARRAY *psa)
 743 {
 744   TRACE("(%p)\n", psa);
 745
 746   if (psa)
 747   {
 748     LPVOID lpv = (char*)psa - SAFEARRAY_HIDDEN_SIZE;
 749
 750     if (psa->cLocks)
 751       return DISP_E_ARRAYISLOCKED; /* Can't destroy a locked array */
 752
 753     if (psa->fFeatures & FADF_RECORD)
 754       SafeArraySetRecordInfo(psa, NULL);
 755
 756     if (psa->fFeatures & FADF_CREATEVECTOR &&
 757         !(psa->fFeatures & FADF_DATADELETED))
 758         SAFEARRAY_DestroyData(psa, 0); /* Data not previously deleted */
 759
 760     if (!SAFEARRAY_Free(lpv))
 761       return E_UNEXPECTED;
 762   }
 763   return S_OK;
 764 }
 765
 766 /*************************************************************************
 767  *              SafeArrayLock (OLEAUT32.21)
 768  *
 769  * Increment the lock counter of a SafeArray.
 770  *
 771  * PARAMS
 772  *  psa [O] SafeArray to lock
 773  *
 774  * RETURNS
 775  *  Success: S_OK. The array lock is incremented.
 776  *  Failure: E_INVALIDARG if psa is NULL, or E_UNEXPECTED if too many locks
 777  *           are held on the array at once.
 778  *
 779  * NOTES
 780  *  In Win32 these locks are not thread safe.
 781  *  See SafeArray.
 782  */
 783 HRESULT WINAPI SafeArrayLock(SAFEARRAY *psa)
 784 {
 785   ULONG ulLocks;
 786
 787   TRACE("(%p)\n", psa);
 788
 789   if (!psa)
 790     return E_INVALIDARG;
 791
 792   ulLocks = InterlockedIncrement(&psa->cLocks);
 793
 794   if (ulLocks > 0xffff) /* Maximum of 16384 locks at a time */
 795   {
 796     WARN("Out of locks!\n");
 797     InterlockedDecrement(&psa->cLocks);
 798     return E_UNEXPECTED;
 799   }
 800   return S_OK;
 801 }
 802
 803 /*************************************************************************
 804  *              SafeArrayUnlock (OLEAUT32.22)
 805  *
 806  * Decrement the lock counter of a SafeArray.
 807  *
 808  * PARAMS
 809  *  psa [O] SafeArray to unlock
 810  *
 811  * RETURNS
 812  *  Success: S_OK. The array lock is decremented.
 813  *  Failure: E_INVALIDARG if psa is NULL, or E_UNEXPECTED if no locks are
 814  *           held on the array.
 815  *
 816  * NOTES
 817  * See SafeArray.
 818  */
 819 HRESULT WINAPI SafeArrayUnlock(SAFEARRAY *psa)
 820 {
 821   TRACE("(%p)\n", psa);
 822
 823   if (!psa)
 824     return E_INVALIDARG;
 825
 826   if ((LONG)InterlockedDecrement(&psa->cLocks) < 0)
 827   {
 828     WARN("Unlocked but no lock held!\n");
 829     InterlockedIncrement(&psa->cLocks);
 830     return E_UNEXPECTED;
 831   }
 832   return S_OK;
 833 }
 834
 835 /*************************************************************************
 836  *              SafeArrayPutElement (OLEAUT32.26)
 837  *
 838  * Put an item into a SafeArray.
 839  *
 840  * PARAMS
 841  *  psa       [I] SafeArray to insert into
 842  *  rgIndices [I] Indices to insert at
 843  *  pvData    [I] Data to insert
 844  *
 845  * RETURNS
 846  *  Success: S_OK. The item is inserted
 847  *  Failure: An HRESULT error code indicating the error.
 848  *
 849  * NOTES
 850  * See SafeArray.
 851  */
 852 HRESULT WINAPI SafeArrayPutElement(SAFEARRAY *psa, LONG *rgIndices, void *pvData)
 853 {
 854   HRESULT hRet;
 855
 856   TRACE("(%p,%p,%p)\n", psa, rgIndices, pvData);
 857
 858   if (!psa || !rgIndices)
 859     return E_INVALIDARG;
 860
 861   if (!pvData)
 862   {
 863     ERR("Invalid pvData would crash under Win32!\n");
 864     return E_INVALIDARG;
 865   }
 866
 867   hRet = SafeArrayLock(psa);
 868
 869   if (SUCCEEDED(hRet))
 870   {
 871     PVOID lpvDest;
 872
 873     hRet = SafeArrayPtrOfIndex(psa, rgIndices, &lpvDest);
 874
 875     if (SUCCEEDED(hRet))
 876     {
 877       if (psa->fFeatures & FADF_VARIANT)
 878       {
 879         VARIANT* lpVariant = (VARIANT*)pvData;
 880         VARIANT* lpDest = (VARIANT*)lpvDest;
 881
 882         hRet = VariantClear(lpDest);
 883         if (FAILED(hRet)) FIXME("VariantClear failed with 0x%lx\n", hRet);
 884         hRet = VariantCopy(lpDest, lpVariant);
 885         if (FAILED(hRet)) FIXME("VariantCopy failed with 0x%lx\n", hRet);
 886       }
 887       else if (psa->fFeatures & FADF_BSTR)
 888       {
 889         BSTR  lpBstr = (BSTR)pvData;
 890         BSTR* lpDest = (BSTR*)lpvDest;
 891
 892         if (*lpDest)
 893          SysFreeString(*lpDest);
 894
 895         if (lpBstr)
 896         {
 897           *lpDest = SysAllocStringByteLen((char*)lpBstr, SysStringByteLen(lpBstr));
 898           if (!*lpDest)
 899             hRet = E_OUTOFMEMORY;
 900         }
 901         else
 902           *lpDest = NULL;
 903       }
 904       else
 905       {
 906         if (psa->fFeatures & (FADF_UNKNOWN|FADF_DISPATCH))
 907         {
 908           LPUNKNOWN  lpUnknown = (LPUNKNOWN)pvData;
 909           LPUNKNOWN *lpDest = (LPUNKNOWN *)lpvDest;
 910
 911           if (lpUnknown)
 912             IUnknown_AddRef(lpUnknown);
 913           if (*lpDest)
 914             IUnknown_Release(*lpDest);
 915           *lpDest = lpUnknown;
 916         } else {
 917           /* Copy the data over */
 918           memcpy(lpvDest, pvData, psa->cbElements);
 919         }
 920       }
 921     }
 922     SafeArrayUnlock(psa);
 923   }
 924   return hRet;
 925 }
 926
 927
 928 /*************************************************************************
 929  *              SafeArrayGetElement (OLEAUT32.25)
 930  *
 931  * Get an item from a SafeArray.
 932  *
 933  * PARAMS
 934  *  psa       [I] SafeArray to get from
 935  *  rgIndices [I] Indices to get from
 936  *  pvData    [O] Destination for data
 937  *
 938  * RETURNS
 939  *  Success: S_OK. The item data is returned in pvData.
 940  *  Failure: An HRESULT error code indicating the error.
 941  *
 942  * NOTES
 943  * See SafeArray.
 944  */
 945 HRESULT WINAPI SafeArrayGetElement(SAFEARRAY *psa, LONG *rgIndices, void *pvData)
 946 {
 947   HRESULT hRet;
 948
 949   TRACE("(%p,%p,%p)\n", psa, rgIndices, pvData);
 950
 951   if (!psa || !rgIndices || !pvData)
 952     return E_INVALIDARG;
 953
 954   hRet = SafeArrayLock(psa);
 955
 956   if (SUCCEEDED(hRet))
 957   {
 958     PVOID lpvSrc;
 959
 960     hRet = SafeArrayPtrOfIndex(psa, rgIndices, &lpvSrc);
 961
 962     if (SUCCEEDED(hRet))
 963     {
 964       if (psa->fFeatures & FADF_VARIANT)
 965       {
 966         VARIANT* lpVariant = (VARIANT*)lpvSrc;
 967         VARIANT* lpDest = (VARIANT*)pvData;
 968
 969         /* The original content of pvData is ignored. */
 970         V_VT(lpDest) = VT_EMPTY;
 971         hRet = VariantCopy(lpDest, lpVariant);
 972         if (FAILED(hRet)) FIXME("VariantCopy failed with 0x%lx\n", hRet);
 973       }
 974       else if (psa->fFeatures & FADF_BSTR)
 975       {
 976         BSTR* lpBstr = (BSTR*)lpvSrc;
 977         BSTR* lpDest = (BSTR*)pvData;
 978
 979         if (*lpBstr)
 980         {
 981           *lpDest = SysAllocStringByteLen((char*)*lpBstr, SysStringByteLen(*lpBstr));
 982           if (!*lpBstr)
 983             hRet = E_OUTOFMEMORY;
 984         }
 985         else
 986           *lpDest = NULL;
 987       }
 988       else
 989       {
 990         if (psa->fFeatures & (FADF_UNKNOWN|FADF_DISPATCH))
 991         {
 992           LPUNKNOWN *lpUnknown = (LPUNKNOWN *)lpvSrc;
 993
 994           if (*lpUnknown)
 995             IUnknown_AddRef(*lpUnknown);
 996         }
 997         /* Copy the data over */
 998         memcpy(pvData, lpvSrc, psa->cbElements);
 999       }
1000     }
1001     SafeArrayUnlock(psa);
1002   }
1003   return hRet;
1004 }
1005
1006 /*************************************************************************
1007  *              SafeArrayGetUBound (OLEAUT32.19)
1008  *
1009  * Get the upper bound for a given SafeArray dimension
1010  *
1011  * PARAMS
1012  *  psa      [I] Array to get dimension upper bound from
1013  *  nDim     [I] The dimension number to get the upper bound of
1014  *  plUbound [O] Destination for the upper bound
1015  *
1016  * RETURNS
1017  *  Success: S_OK. plUbound contains the dimensions upper bound.
1018  *  Failure: An HRESULT error code indicating the error.
1019  *
1020  * NOTES
1021  * See SafeArray.
1022  */
1023 HRESULT WINAPI SafeArrayGetUBound(SAFEARRAY *psa, UINT nDim, LONG *plUbound)
1024 {
1025   TRACE("(%p,%d,%p)\n", psa, nDim, plUbound);
1026
1027   if (!psa || !plUbound)
1028     return E_INVALIDARG;
1029
1030   if(!nDim || nDim > psa->cDims)
1031     return DISP_E_BADINDEX;
1032
1033   *plUbound = psa->rgsabound[nDim - 1].lLbound +
1034               psa->rgsabound[nDim - 1].cElements - 1;
1035
1036   return S_OK;
1037 }
1038
1039 /*************************************************************************
1040  *              SafeArrayGetLBound (OLEAUT32.20)
1041  *
1042  * Get the lower bound for a given SafeArray dimension
1043  *
1044  * PARAMS
1045  *  psa      [I] Array to get dimension lower bound from
1046  *  nDim     [I] The dimension number to get the lowe bound of
1047  *  plLbound [O] Destination for the lower bound
1048  *
1049  * RETURNS
1050  *  Success: S_OK. plUbound contains the dimensions lower bound.
1051  *  Failure: An HRESULT error code indicating the error.
1052  *
1053  * NOTES
1054  * See SafeArray.
1055  */
1056 HRESULT WINAPI SafeArrayGetLBound(SAFEARRAY *psa, UINT nDim, LONG *plLbound)
1057 {
1058   TRACE("(%p,%d,%p)\n", psa, nDim, plLbound);
1059
1060   if (!psa || !plLbound)
1061     return E_INVALIDARG;
1062
1063   if(!nDim || nDim > psa->cDims)
1064     return DISP_E_BADINDEX;
1065
1066   *plLbound = psa->rgsabound[nDim - 1].lLbound;
1067   return S_OK;
1068 }
1069
1070 /*************************************************************************
1071  *              SafeArrayGetDim (OLEAUT32.17)
1072  *
1073  * Get the number of dimensions in a SafeArray.
1074  *
1075  * PARAMS
1076  *  psa [I] Array to get the dimensions of
1077  *
1078  * RETURNS
1079  *  The number of array dimensions in psa, or 0 if psa is NULL.
1080  *
1081  * NOTES
1082  * See SafeArray.
1083  */
1084 UINT WINAPI SafeArrayGetDim(SAFEARRAY *psa)
1085 {
1086   TRACE("(%p) returning %ld\n", psa, psa ? psa->cDims : 0ul);
1087   return psa ? psa->cDims : 0;
1088 }
1089
1090 /*************************************************************************
1091  *              SafeArrayGetElemsize (OLEAUT32.18)
1092  *
1093  * Get the size of an element in a SafeArray.
1094  *
1095  * PARAMS
1096  *  psa [I] Array to get the element size from
1097  *
1098  * RETURNS
1099  *  The size of a single element in psa, or 0 if psa is NULL.
1100  *
1101  * NOTES
1102  * See SafeArray.
1103  */
1104 UINT WINAPI SafeArrayGetElemsize(SAFEARRAY *psa)
1105 {
1106   TRACE("(%p) returning %ld\n", psa, psa ? psa->cbElements : 0ul);
1107   return psa ? psa->cbElements : 0;
1108 }
1109
1110 /*************************************************************************
1111  *              SafeArrayAccessData (OLEAUT32.23)
1112  *
1113  * Lock a SafeArray and return a pointer to its data.
1114  *
1115  * PARAMS
1116  *  psa     [I] Array to get the data pointer from
1117  *  ppvData [O] Destination for the arrays data pointer
1118  *
1119  * RETURNS
1120  *  Success: S_OK. ppvData contains the arrays data pointer, and the array
1121  *           is locked.
1122  *  Failure: An HRESULT error code indicating the error.
1123  *
1124  * NOTES
1125  * See SafeArray.
1126  */
1127 HRESULT WINAPI SafeArrayAccessData(SAFEARRAY *psa, void **ppvData)
1128 {
1129   TRACE("(%p,%p)\n", psa, ppvData);
1130
1131   if(!psa || !ppvData)
1132     return E_INVALIDARG;
1133
1134   if (SUCCEEDED(SafeArrayLock(psa)))
1135   {
1136     *ppvData = psa->pvData;
1137     return S_OK;
1138   }
1139   *ppvData = NULL;
1140   return E_UNEXPECTED;
1141 }
1142
1143
1144 /*************************************************************************
1145  *              SafeArrayUnaccessData (OLEAUT32.24)
1146  *
1147  * Unlock a SafeArray after accessing its data.
1148  *
1149  * PARAMS
1150  *  psa     [I] Array to unlock
1151  *
1152  * RETURNS
1153  *  Success: S_OK. The array is unlocked.
1154  *  Failure: An HRESULT error code indicating the error.
1155  *
1156  * NOTES
1157  * See SafeArray.
1158  */
1159 HRESULT WINAPI SafeArrayUnaccessData(SAFEARRAY *psa)
1160 {
1161   TRACE("(%p)\n", psa);
1162   return SafeArrayUnlock(psa);
1163 }
1164
1165 /************************************************************************
1166  *              SafeArrayPtrOfIndex (OLEAUT32.148)
1167  *
1168  * Get the address of an item in a SafeArray.
1169  *
1170  * PARAMS
1171  *  psa       [I] Array to get the items address from
1172  *  rgIndices [I] Index of the item in the array
1173  *  ppvData   [O] Destination for item address
1174  *
1175  * RETURNS
1176  *  Success: S_OK. ppvData contains a pointer to the item.
1177  *  Failure: An HRESULT error code indicating the error.
1178  *
1179  * NOTES
1180  *  This function does not lock the array.
1181  *
1182  * NOTES
1183  * See SafeArray.
1184  */
1185 HRESULT WINAPI SafeArrayPtrOfIndex(SAFEARRAY *psa, LONG *rgIndices, void **ppvData)
1186 {
1187   USHORT dim;
1188   ULONG cell = 0, dimensionSize = 1;
1189   SAFEARRAYBOUND* psab;
1190   LONG c1;
1191
1192   TRACE("(%p,%p,%p)\n", psa, rgIndices, ppvData);
1193
1194   /* The general formula for locating the cell number of an entry in an n
1195    * dimensional array (where cn = coordinate in dimension dn) is:
1196    *
1197    * c1 + c2 * sizeof(d1) + c3 * sizeof(d2) ... + cn * sizeof(c(n-1))
1198    *
1199    * We calculate the size of the last dimension at each step through the
1200    * dimensions to avoid recursing to calculate the last dimensions size.
1201    */
1202   if (!psa || !rgIndices || !ppvData)
1203     return E_INVALIDARG;
1204
1205   psab = psa->rgsabound;
1206   c1 = *rgIndices++;
1207
1208   if (c1 < psab->lLbound || c1 >= psab->lLbound + (LONG)psab->cElements)
1209     return DISP_E_BADINDEX; /* Initial index out of bounds */
1210
1211   for (dim = 1; dim < psa->cDims; dim++)
1212   {
1213     dimensionSize *= psab->cElements;
1214
1215     psab++;
1216
1217     if (!psab->cElements ||
1218         *rgIndices < psab->lLbound ||
1219         *rgIndices >= psab->lLbound + (LONG)psab->cElements)
1220     return DISP_E_BADINDEX; /* Index out of bounds */
1221
1222     cell += (*rgIndices - psab->lLbound) * dimensionSize;
1223     rgIndices++;
1224   }
1225
1226   cell += (c1 - psa->rgsabound[0].lLbound);
1227
1228   *ppvData = (char*)psa->pvData + cell * psa->cbElements;
1229   return S_OK;
1230 }
1231
1232 /************************************************************************
1233  *              SafeArrayDestroyData (OLEAUT32.39)
1234  *
1235  * Destroy the data associated with a SafeArray.
1236  *
1237  * PARAMS
1238  *  psa [I] Array to delete the data from
1239  *
1240  * RETURNS
1241  *  Success: S_OK. All items and the item data are freed.
1242  *  Failure: An HRESULT error code indicating the error.
1243  *
1244  * NOTES
1245  * See SafeArray.
1246  */
1247 HRESULT WINAPI SafeArrayDestroyData(SAFEARRAY *psa)
1248 {
1249   TRACE("(%p)\n", psa);
1250
1251   if (!psa)
1252     return E_INVALIDARG;
1253
1254   if (psa->cLocks)
1255     return DISP_E_ARRAYISLOCKED; /* Can't delete a locked array */
1256
1257   /* If static, keep pvData and don't free */
1258   if (psa->pvData && !(psa->fFeatures & FADF_STATIC))
1259   {
1260     /* Delete the actual item data */
1261     if (FAILED(SAFEARRAY_DestroyData(psa, 0)))
1262       return E_UNEXPECTED;
1263
1264     /* If this is not a vector, free the data memory block */
1265     if (!(psa->fFeatures & FADF_CREATEVECTOR))
1266     {
1267       if (!SAFEARRAY_Free(psa->pvData))
1268         return E_UNEXPECTED;
1269       psa->pvData = NULL;
1270     }
1271     else
1272       psa->fFeatures |= FADF_DATADELETED; /* Mark the data deleted */
1273
1274   }
1275   return S_OK;
1276 }
1277
1278 /************************************************************************
1279  *              SafeArrayCopyData (OLEAUT32.412)
1280  *
1281  * Copy all data from one SafeArray to another.
1282  *
1283  * PARAMS
1284  *  psaSource [I] Source for copy
1285  *  psaTarget [O] Destination for copy
1286  *
1287  * RETURNS
1288  *  Success: S_OK. psaTarget contains a copy of psaSource.
1289  *  Failure: An HRESULT error code indicating the error.
1290  *
1291  * NOTES
1292  *  The two arrays must have the same number of dimensions and elements.
1293  *
1294  * NOTES
1295  * See SafeArray.
1296  */
1297 HRESULT WINAPI SafeArrayCopyData(SAFEARRAY *psaSource, SAFEARRAY *psaTarget)
1298 {
1299   int dim;
1300
1301   TRACE("(%p,%p)\n", psaSource, psaTarget);
1302
1303   if (!psaSource || !psaTarget ||
1304       psaSource->cDims != psaTarget->cDims ||
1305       psaSource->cbElements != psaTarget->cbElements)
1306     return E_INVALIDARG;
1307
1308   /* Each dimension must be the same size */
1309   for (dim = psaSource->cDims - 1; dim >= 0 ; dim--)
1310     if (psaSource->rgsabound[dim].cElements !=
1311        psaTarget->rgsabound[dim].cElements)
1312       return E_INVALIDARG;
1313
1314   if (SUCCEEDED(SAFEARRAY_DestroyData(psaTarget, 0)) &&
1315       SUCCEEDED(SAFEARRAY_CopyData(psaSource, psaTarget)))
1316     return S_OK;
1317   return E_UNEXPECTED;
1318 }
1319
1320 /************************************************************************
1321  *              SafeArrayDestroy (OLEAUT32.16)
1322  *
1323  * Destroy a SafeArray.
1324  *
1325  * PARAMS
1326  *  psa [I] Array to destroy
1327  *
1328  * RETURNS
1329  *  Success: S_OK. All resources used by the array are freed.
1330  *  Failure: An HRESULT error code indicating the error.
1331  *
1332  * NOTES
1333  * See SafeArray.
1334  */
1335 HRESULT WINAPI SafeArrayDestroy(SAFEARRAY *psa)
1336 {
1337   TRACE("(%p)\n", psa);
1338
1339   if(!psa)
1340     return S_OK;
1341
1342   if(psa->cLocks > 0)
1343     return DISP_E_ARRAYISLOCKED;
1344
1345   /* Native doesn't check to see if the free succeeds */
1346   SafeArrayDestroyData(psa);
1347   SafeArrayDestroyDescriptor(psa);
1348   return S_OK;
1349 }
1350
1351 /************************************************************************
1352  *              SafeArrayCopy (OLEAUT32.27)
1353  *
1354  * Make a duplicate of a SafeArray.
1355  *
1356  * PARAMS
1357  *  psa     [I] Source for copy
1358  *  ppsaOut [O] Destination for new copy
1359  *
1360  * RETURNS
1361  *  Success: S_OK. ppsaOut contains a copy of the array.
1362  *  Failure: An HRESULT error code indicating the error.
1363  *
1364  * NOTES
1365  * See SafeArray.
1366  */
1367 HRESULT WINAPI SafeArrayCopy(SAFEARRAY *psa, SAFEARRAY **ppsaOut)
1368 {
1369   HRESULT hRet;
1370
1371   TRACE("(%p,%p)\n", psa, ppsaOut);
1372
1373   if (!ppsaOut)
1374     return E_INVALIDARG;
1375
1376   *ppsaOut = NULL;
1377
1378   if (!psa)
1379     return S_OK; /* Handles copying of NULL arrays */
1380
1381   if (psa->fFeatures & (FADF_RECORD|FADF_HAVEIID|FADF_HAVEVARTYPE))
1382   {
1383     VARTYPE vt;
1384     if (FAILED(SafeArrayGetVartype(psa, &vt)))
1385       hRet = E_UNEXPECTED;
1386     else
1387       hRet = SafeArrayAllocDescriptorEx(vt, psa->cDims, ppsaOut);
1388   }
1389   else
1390   {
1391     hRet = SafeArrayAllocDescriptor(psa->cDims, ppsaOut);
1392     if (SUCCEEDED(hRet))
1393     {
1394       (*ppsaOut)->fFeatures = psa->fFeatures & ~FADF_CREATEVECTOR;
1395       (*ppsaOut)->cbElements = psa->cbElements;
1396     }
1397   }
1398
1399   if (SUCCEEDED(hRet))
1400   {
1401     /* Copy dimension bounds */
1402     memcpy((*ppsaOut)->rgsabound, psa->rgsabound, psa->cDims * sizeof(SAFEARRAYBOUND));
1403
1404     (*ppsaOut)->pvData = SAFEARRAY_Malloc(SAFEARRAY_GetCellCount(psa) * psa->cbElements);
1405
1406     if ((*ppsaOut)->pvData)
1407     {
1408       hRet = SAFEARRAY_CopyData(psa, *ppsaOut);
1409
1410       if (SUCCEEDED(hRet))
1411         return hRet;
1412
1413       SAFEARRAY_Free((*ppsaOut)->pvData);
1414     }
1415     SafeArrayDestroyDescriptor(*ppsaOut);
1416   }
1417   *ppsaOut = NULL;
1418   return hRet;
1419 }
1420
1421 /************************************************************************
1422  *              SafeArrayRedim (OLEAUT32.40)
1423  *
1424  * Changes the characteristics of the last dimension of a SafeArray
1425  *
1426  * PARAMS
1427  *  psa      [I] Array to change
1428  *  psabound [I] New bound details for the last dimension
1429  *
1430  * RETURNS
1431  *  Success: S_OK. psa is updated to reflect the new bounds.
1432  *  Failure: An HRESULT error code indicating the error.
1433  *
1434  * NOTES
1435  * See SafeArray.
1436  */
1437 HRESULT WINAPI SafeArrayRedim(SAFEARRAY *psa, SAFEARRAYBOUND *psabound)
1438 {
1439   SAFEARRAYBOUND *oldBounds;
1440
1441   TRACE("(%p,%p)\n", psa, psabound);
1442
1443   if (!psa || psa->fFeatures & FADF_FIXEDSIZE || !psabound)
1444     return E_INVALIDARG;
1445
1446   if (psa->cLocks > 0)
1447     return DISP_E_ARRAYISLOCKED;
1448
1449   if (FAILED(SafeArrayLock(psa)))
1450     return E_UNEXPECTED;
1451
1452   oldBounds = &psa->rgsabound[psa->cDims - 1];
1453   oldBounds->lLbound = psabound->lLbound;
1454
1455   if (psabound->cElements != oldBounds->cElements)
1456   {
1457     if (psabound->cElements < oldBounds->cElements)
1458     {
1459       /* Shorten the final dimension. */
1460       ULONG ulStartCell = psa->cDims == 1 ? 0 : SAFEARRAY_GetDimensionCells(psa, psa->cDims - 1);
1461
1462       ulStartCell += psabound->cElements;
1463       SAFEARRAY_DestroyData(psa, ulStartCell);
1464     }
1465     else
1466     {
1467       /* Lengthen the final dimension */
1468       ULONG ulOldSize, ulNewSize;
1469       PVOID pvNewData;
1470
1471       ulOldSize = SAFEARRAY_GetCellCount(psa) * psa->cbElements;
1472       if (ulOldSize)
1473         ulNewSize = (ulOldSize / oldBounds->cElements) * psabound->cElements;
1474       else {
1475         int oldelems = oldBounds->cElements;
1476         oldBounds->cElements = psabound->cElements;
1477         ulNewSize = SAFEARRAY_GetCellCount(psa) * psa->cbElements;
1478         oldBounds->cElements = oldelems;
1479       }
1480
1481       if (!(pvNewData = SAFEARRAY_Malloc(ulNewSize)))
1482       {
1483         SafeArrayUnlock(psa);
1484         return E_UNEXPECTED;
1485       }
1486
1487       memcpy(pvNewData, psa->pvData, ulOldSize);
1488       SAFEARRAY_Free(psa->pvData);
1489       psa->pvData = pvNewData;
1490     }
1491     oldBounds->cElements = psabound->cElements;
1492   }
1493
1494   SafeArrayUnlock(psa);
1495   return S_OK;
1496 }
1497
1498 /************************************************************************
1499  *              SafeArrayGetVartype (OLEAUT32.77)
1500  *
1501  * Get the type of the items in a SafeArray.
1502  *
1503  * PARAMS
1504  *  psa [I] Array to get the type from
1505  *  pvt [O] Destination for the type
1506  *
1507  * RETURNS
1508  *  Success: S_OK. pvt contains the type of the items.
1509  *  Failure: An HRESULT error code indicating the error.
1510  *
1511  * NOTES
1512  * See SafeArray.
1513  */
1514 HRESULT WINAPI SafeArrayGetVartype(SAFEARRAY* psa, VARTYPE* pvt)
1515 {
1516   TRACE("(%p,%p)\n", psa, pvt);
1517
1518   if (!psa || !pvt)
1519     return E_INVALIDARG;
1520
1521   if (psa->fFeatures & FADF_RECORD)
1522     *pvt = VT_RECORD;
1523   else if (psa->fFeatures & FADF_HAVEIID)
1524     *pvt = VT_UNKNOWN;
1525   else if (psa->fFeatures & FADF_HAVEVARTYPE)
1526   {
1527     VARTYPE vt = SAFEARRAY_GetHiddenDWORD(psa);
1528     *pvt = vt;
1529   }
1530   else
1531     return E_INVALIDARG;
1532
1533   return S_OK;
1534 }
1535
1536 /************************************************************************
1537  *              SafeArraySetRecordInfo (OLEAUT32.@)
1538  *
1539  * Set the record info for a SafeArray.
1540  *
1541  * PARAMS
1542  *  psa    [I] Array to set the record info for
1543  *  pRinfo [I] Record info
1544  *
1545  * RETURNS
1546  *  Success: S_OK. The record info is stored with the array.
1547  *  Failure: An HRESULT error code indicating the error.
1548  *
1549  * NOTES
1550  * See SafeArray.
1551  */
1552 HRESULT WINAPI SafeArraySetRecordInfo(SAFEARRAY *psa, IRecordInfo *pRinfo)
1553 {
1554   IRecordInfo** dest = (IRecordInfo**)psa;
1555
1556   TRACE("(%p,%p)\n", psa, pRinfo);
1557
1558   if (!psa || !(psa->fFeatures & FADF_RECORD))
1559     return E_INVALIDARG;
1560
1561   if (pRinfo)
1562     IRecordInfo_AddRef(pRinfo);
1563
1564   if (dest[-1])
1565     IRecordInfo_Release(dest[-1]);
1566
1567   dest[-1] = pRinfo;
1568   return S_OK;
1569 }
1570
1571 /************************************************************************
1572  *              SafeArrayGetRecordInfo (OLEAUT32.@)
1573  *
1574  * Get the record info from a SafeArray.
1575  *
1576  * PARAMS
1577  *  psa    [I] Array to get the record info from
1578  *  pRinfo [O] Destination for the record info
1579  *
1580  * RETURNS
1581  *  Success: S_OK. pRinfo contains the record info, or NULL if there was none.
1582  *  Failure: An HRESULT error code indicating the error.
1583  *
1584  * NOTES
1585  * See SafeArray.
1586  */
1587 HRESULT WINAPI SafeArrayGetRecordInfo(SAFEARRAY *psa, IRecordInfo **pRinfo)
1588 {
1589   IRecordInfo** src = (IRecordInfo**)psa;
1590
1591   TRACE("(%p,%p)\n", psa, pRinfo);
1592
1593   if (!psa || !pRinfo || !(psa->fFeatures & FADF_RECORD))
1594     return E_INVALIDARG;
1595
1596   *pRinfo = src[-1];
1597
1598   if (*pRinfo)
1599     IRecordInfo_AddRef(*pRinfo);
1600   return S_OK;
1601 }
1602
1603 /************************************************************************
1604  *              SafeArraySetIID (OLEAUT32.@)
1605  *
1606  * Set the IID for a SafeArray.
1607  *
1608  * PARAMS
1609  *  psa  [I] Array to set the IID from
1610  *  guid [I] IID
1611  *
1612  * RETURNS
1613  *  Success: S_OK. The IID is stored with the array
1614  *  Failure: An HRESULT error code indicating the error.
1615  *
1616  * NOTES
1617  * See SafeArray.
1618  */
1619 HRESULT WINAPI SafeArraySetIID(SAFEARRAY *psa, REFGUID guid)
1620 {
1621   GUID* dest = (GUID*)psa;
1622
1623   TRACE("(%p,%s)\n", psa, debugstr_guid(guid));
1624
1625   if (!psa || !guid || !(psa->fFeatures & FADF_HAVEIID))
1626     return E_INVALIDARG;
1627
1628   dest[-1] = *guid;
1629   return S_OK;
1630 }
1631
1632 /************************************************************************
1633  *              SafeArrayGetIID (OLEAUT32.@)
1634  *
1635  * Get the IID from a SafeArray.
1636  *
1637  * PARAMS
1638  *  psa   [I] Array to get the ID from
1639  *  pGuid [O] Destination for the IID
1640  *
1641  * RETURNS
1642  *  Success: S_OK. pRinfo contains the IID, or NULL if there was none.
1643  *  Failure: An HRESULT error code indicating the error.
1644  *
1645  * NOTES
1646  * See SafeArray.
1647  */
1648 HRESULT WINAPI SafeArrayGetIID(SAFEARRAY *psa, GUID *pGuid)
1649 {
1650   GUID* src = (GUID*)psa;
1651
1652   TRACE("(%p,%p)\n", psa, pGuid);
1653
1654   if (!psa || !pGuid || !(psa->fFeatures & FADF_HAVEIID))
1655     return E_INVALIDARG;
1656
1657   *pGuid = src[-1];
1658   return S_OK;
1659 }
1660
1661 /************************************************************************
1662  *              VectorFromBstr (OLEAUT32.@)
1663  *
1664  * Create a SafeArray Vector from the bytes of a BSTR.
1665  *
1666  * PARAMS
1667  *  bstr [I] String to get bytes from
1668  *  ppsa [O] Destination for the array
1669  *
1670  * RETURNS
1671  *  Success: S_OK. ppsa contains the strings bytes as a VT_UI1 array.
1672  *  Failure: An HRESULT error code indicating the error.
1673  *
1674  * NOTES
1675  * See SafeArray.
1676  */
1677 HRESULT WINAPI VectorFromBstr(BSTR bstr, SAFEARRAY **ppsa)
1678 {
1679   SAFEARRAYBOUND sab;
1680
1681   TRACE("(%p,%p)\n", bstr, ppsa);
1682
1683   if (!ppsa)
1684     return E_INVALIDARG;
1685
1686   sab.lLbound = 0;
1687   sab.cElements = SysStringByteLen(bstr);
1688
1689   *ppsa = SAFEARRAY_Create(VT_UI1, 1, &sab, 0);
1690
1691   if (*ppsa)
1692   {
1693     memcpy((*ppsa)->pvData, bstr, sab.cElements);
1694     return S_OK;
1695   }
1696   return E_OUTOFMEMORY;
1697 }
1698
1699 /************************************************************************
1700  *              BstrFromVector (OLEAUT32.@)
1701  *
1702  * Create a BSTR from a SafeArray.
1703  *
1704  * PARAMS
1705  *  psa   [I] Source array
1706  *  pbstr [O] Destination for output BSTR
1707  *
1708  * RETURNS
1709  *  Success: S_OK. pbstr contains the arrays data.
1710  *  Failure: An HRESULT error code indicating the error.
1711  *
1712  * NOTES
1713  *  psa must be a 1 dimensional array of a 1 byte type.
1714  *
1715  * NOTES
1716  * See SafeArray.
1717  */
1718 HRESULT WINAPI BstrFromVector(SAFEARRAY *psa, BSTR *pbstr)
1719 {
1720   TRACE("(%p,%p)\n", psa, pbstr);
1721
1722   if (!pbstr)
1723     return E_INVALIDARG;
1724
1725   *pbstr = NULL;
1726
1727   if (!psa || psa->cbElements != 1 || psa->cDims != 1)
1728     return E_INVALIDARG;
1729
1730   *pbstr = SysAllocStringByteLen(psa->pvData, psa->rgsabound[0].cElements);
1731   if (!*pbstr)
1732     return E_OUTOFMEMORY;
1733   return S_OK;
1734 }