1 /*************************************************************************
2 * OLE Automation - SafeArray
4 * This file contains the implementation of the SafeArray functions.
6 * Copyright 1999 Sylvain St-Germain
7 * Copyright 2002-2003 Marcus Meissner
8 * Copyright 2003 Jon Griffiths
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.
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.
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
24 /* Memory Layout of a SafeArray:
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))
31 * 0x10: SAFEARRAYBOUNDS[0...]
45 #include "wine/debug.h"
48 WINE_DEFAULT_DEBUG_CHANNEL(ole);
50 /************************************************************************
51 * SafeArray {OLEAUT32}
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.
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.
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 seperately from
66 * the array header. This is the most flexable type of array. Vectors, on the
67 * other hand, are fixed in size and consist of a single allocated block, and a
71 * The following types of data can be stored within a SafeArray.
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
76 *| VT_DISPATCH, VT_UNKNOWN, VT_RECORD
78 *| VT_VARIANT, VT_INT_PTR, VT_UINT_PTR, VT_BOOL, VT_ERROR, VT_DATE, VT_BSTR
85 /* Undocumented hidden space before the start of a SafeArray descriptor */
86 #define SAFEARRAY_HIDDEN_SIZE sizeof(GUID)
89 static inline LPVOID SAFEARRAY_Malloc(ULONG ulSize)
91 /* FIXME: Memory should be allocated and freed using a per-thread IMalloc
92 * instance returned from CoGetMalloc().
94 return HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, ulSize);
98 static inline BOOL SAFEARRAY_Free(LPVOID lpData)
100 return HeapFree(GetProcessHeap(), 0, lpData);
103 /* Get the size of a supported VT type (0 means unsupported) */
104 static DWORD SAFEARRAY_GetVTSize(VARTYPE vt)
109 case VT_UI1: return sizeof(BYTE);
112 case VT_UI2: return sizeof(SHORT);
116 case VT_ERROR: return sizeof(LONG);
119 case VT_UI8: return sizeof(LONG64);
121 case VT_UINT: return sizeof(INT);
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().
134 case VT_RECORD: return 32;
139 /* Set the hidden data for an array */
140 static inline void SAFEARRAY_SetHiddenDWORD(SAFEARRAY* psa, DWORD dw)
142 /* Implementation data is stored in the 4 bytes before the header */
143 LPDWORD lpDw = (LPDWORD)psa;
147 /* Get the hidden data from an array */
148 static inline DWORD SAFEARRAY_GetHiddenDWORD(SAFEARRAY* psa)
150 LPDWORD lpDw = (LPDWORD)psa;
154 /* Get the number of cells in a SafeArray */
155 static ULONG SAFEARRAY_GetCellCount(const SAFEARRAY *psa)
157 SAFEARRAYBOUND* psab = psa->rgsabound;
158 USHORT cCount = psa->cDims;
159 ULONG ulNumCells = 1;
163 /* This is a valid bordercase. See testcases. -Marcus */
164 if (!psab->cElements)
166 ulNumCells *= psab->cElements;
172 /* Get the 0 based index of an index into a dimension */
173 static inline ULONG SAFEARRAY_GetDimensionIndex(SAFEARRAYBOUND *psab, ULONG ulIndex)
175 return ulIndex - psab->lLbound;
178 /* Get the size of a dimension in cells */
179 static inline ULONG SAFEARRAY_GetDimensionCells(SAFEARRAY *psa, ULONG ulDim)
181 ULONG size = psa->rgsabound[0].cElements;
185 size *= psa->rgsabound[ulDim].cElements;
191 /* Allocate a descriptor for an array */
192 static HRESULT SAFEARRAY_AllocDescriptor(ULONG ulSize, SAFEARRAY **ppsaOut)
194 *ppsaOut = (SAFEARRAY*)((char*)SAFEARRAY_Malloc(ulSize + SAFEARRAY_HIDDEN_SIZE) + SAFEARRAY_HIDDEN_SIZE);
202 /* Set the features of an array */
203 static void SAFEARRAY_SetFeatures(VARTYPE vt, SAFEARRAY *psa)
205 /* Set the IID if we have one, otherwise set the type */
206 if (vt == VT_DISPATCH)
208 psa->fFeatures = FADF_HAVEIID;
209 SafeArraySetIID(psa, &IID_IDispatch);
211 else if (vt == VT_UNKNOWN)
213 psa->fFeatures = FADF_HAVEIID;
214 SafeArraySetIID(psa, &IID_IUnknown);
216 else if (vt == VT_RECORD)
217 psa->fFeatures = FADF_RECORD;
220 psa->fFeatures = FADF_HAVEVARTYPE;
221 SAFEARRAY_SetHiddenDWORD(psa, vt);
225 /* Create an array */
226 static SAFEARRAY* SAFEARRAY_Create(VARTYPE vt, UINT cDims, SAFEARRAYBOUND *rgsabound, ULONG ulSize)
228 SAFEARRAY *psa = NULL;
233 if (SUCCEEDED(SafeArrayAllocDescriptorEx(vt, cDims, &psa)))
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;
243 memcpy(psa->rgsabound, rgsabound, cDims * sizeof(SAFEARRAYBOUND));
246 psa->cbElements = ulSize;
248 if (FAILED(SafeArrayAllocData(psa)))
250 SafeArrayDestroyDescriptor(psa);
257 /* Create an array as a vector */
258 static SAFEARRAY* SAFEARRAY_CreateVector(VARTYPE vt, LONG lLbound, ULONG cElements, ULONG ulSize)
260 SAFEARRAY *psa = NULL;
262 if (ulSize || (vt == VT_RECORD))
264 /* Allocate the header and data together */
265 if (SUCCEEDED(SAFEARRAY_AllocDescriptor(sizeof(SAFEARRAY) + ulSize * cElements, &psa)))
267 SAFEARRAY_SetFeatures(vt, psa);
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;
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;
288 /* Free data items in an array */
289 static HRESULT SAFEARRAY_DestroyData(SAFEARRAY *psa, ULONG ulStartCell)
291 if (psa->pvData && !(psa->fFeatures & FADF_DATADELETED))
293 ULONG ulCellCount = SAFEARRAY_GetCellCount(psa);
295 if (ulStartCell > ulCellCount) {
296 FIXME("unexpted ulcellcount %ld, start %ld\n",ulCellCount,ulStartCell);
300 ulCellCount -= ulStartCell;
302 if (psa->fFeatures & (FADF_UNKNOWN|FADF_DISPATCH))
304 LPUNKNOWN *lpUnknown = (LPUNKNOWN *)psa->pvData + ulStartCell * psa->cbElements;
309 IUnknown_Release(*lpUnknown);
313 else if (psa->fFeatures & (FADF_RECORD))
315 IRecordInfo *lpRecInfo;
317 if (SUCCEEDED(SafeArrayGetRecordInfo(psa, &lpRecInfo)))
319 PBYTE pRecordData = (PBYTE)psa->pvData;
322 IRecordInfo_RecordClear(lpRecInfo, pRecordData);
323 pRecordData += psa->cbElements;
325 IRecordInfo_Release(lpRecInfo);
328 else if (psa->fFeatures & FADF_BSTR)
330 BSTR* lpBstr = (BSTR*)psa->pvData + ulStartCell * psa->cbElements;
335 SysFreeString(*lpBstr);
339 else if (psa->fFeatures & FADF_VARIANT)
341 VARIANT* lpVariant = (VARIANT*)psa->pvData + ulStartCell * psa->cbElements;
345 VariantClear(lpVariant);
353 /* Copy data items from one array to another */
354 static HRESULT SAFEARRAY_CopyData(SAFEARRAY *psa, SAFEARRAY *dest)
356 if (!psa->pvData || !dest->pvData || psa->fFeatures & FADF_DATADELETED)
360 ULONG ulCellCount = SAFEARRAY_GetCellCount(psa);
362 dest->fFeatures = (dest->fFeatures & FADF_CREATEVECTOR) |
363 (psa->fFeatures & ~(FADF_CREATEVECTOR|FADF_DATADELETED));
365 if (psa->fFeatures & FADF_VARIANT)
367 VARIANT* lpVariant = (VARIANT*)psa->pvData;
368 VARIANT* lpDest = (VARIANT*)dest->pvData;
372 VariantCopy(lpDest, lpVariant);
377 else if (psa->fFeatures & FADF_BSTR)
379 BSTR* lpBstr = (BSTR*)psa->pvData;
380 BSTR* lpDest = (BSTR*)dest->pvData;
386 *lpDest = SysAllocStringByteLen((char*)*lpBstr, SysStringByteLen(*lpBstr));
388 return E_OUTOFMEMORY;
398 /* Copy the data over */
399 memcpy(dest->pvData, psa->pvData, ulCellCount * psa->cbElements);
401 if (psa->fFeatures & (FADF_UNKNOWN|FADF_DISPATCH))
403 LPUNKNOWN *lpUnknown = (LPUNKNOWN *)dest->pvData;
408 IUnknown_AddRef(*lpUnknown);
414 if (psa->fFeatures & FADF_RECORD)
416 IRecordInfo* pRecInfo = NULL;
418 SafeArrayGetRecordInfo(psa, &pRecInfo);
419 SafeArraySetRecordInfo(dest, pRecInfo);
423 /* Release because Get() adds a reference */
424 IRecordInfo_Release(pRecInfo);
427 else if (psa->fFeatures & FADF_HAVEIID)
430 SafeArrayGetIID(psa, &guid);
431 SafeArraySetIID(dest, &guid);
433 else if (psa->fFeatures & FADF_HAVEVARTYPE)
435 SAFEARRAY_SetHiddenDWORD(dest, SAFEARRAY_GetHiddenDWORD(psa));
441 /*************************************************************************
442 * SafeArrayAllocDescriptor (OLEAUT32.36)
444 * Allocate and initialise a descriptor for a SafeArray.
447 * cDims [I] Number of dimensions of the array
448 * ppsaOut [O] Destination for new descriptor
451 * Success: S_OK. ppsaOut is filled with a newly allocated descriptor.
452 * Failure: An HRESULT error code indicating the error.
457 HRESULT WINAPI SafeArrayAllocDescriptor(UINT cDims, SAFEARRAY **ppsaOut)
461 TRACE("(%d,%p)\n", cDims, ppsaOut);
463 if (!cDims || cDims >= 0x10000) /* Maximum 65535 dimensions */
469 /* We need enough space for the header and its bounds */
470 allocSize = sizeof(SAFEARRAY) + sizeof(SAFEARRAYBOUND) * (cDims - 1);
472 if (FAILED(SAFEARRAY_AllocDescriptor(allocSize, ppsaOut)))
475 (*ppsaOut)->cDims = cDims;
477 TRACE("(%d): %lu bytes allocated for descriptor.\n", cDims, allocSize);
481 /*************************************************************************
482 * SafeArrayAllocDescriptorEx (OLEAUT32.41)
484 * Allocate and initialise a descriptor for a SafeArray of a given type.
487 * vt [I] The type of items to store in the array
488 * cDims [I] Number of dimensions of the array
489 * ppsaOut [O] Destination for new descriptor
492 * Success: S_OK. ppsaOut is filled with a newly allocated descriptor.
493 * Failure: An HRESULT error code indicating the error.
496 * - This function does not chack that vt is an allowed VARTYPE.
497 * - Unlike SafeArrayAllocDescriptor(), vt is associated with the array.
500 HRESULT WINAPI SafeArrayAllocDescriptorEx(VARTYPE vt, UINT cDims, SAFEARRAY **ppsaOut)
503 HRESULT hRet = E_UNEXPECTED;
505 TRACE("(%d->%s,%d,%p)\n", vt, debugstr_vt(vt), cDims, ppsaOut);
507 cbElements = SAFEARRAY_GetVTSize(vt);
509 WARN("Creating a descriptor with an invalid VARTYPE!\n");
511 hRet = SafeArrayAllocDescriptor(cDims, ppsaOut);
515 SAFEARRAY_SetFeatures(vt, *ppsaOut);
516 (*ppsaOut)->cbElements = cbElements;
521 /*************************************************************************
522 * SafeArrayAllocData (OLEAUT32.37)
524 * Allocate the data area of a SafeArray.
527 * psa [I] SafeArray to allocate the data area of.
530 * Success: S_OK. The data area is allocated and initialised.
531 * Failure: An HRESULT error code indicating the error.
536 HRESULT WINAPI SafeArrayAllocData(SAFEARRAY *psa)
538 HRESULT hRet = E_INVALIDARG;
540 TRACE("(%p)\n", psa);
544 ULONG ulSize = SAFEARRAY_GetCellCount(psa);
546 hRet = E_OUTOFMEMORY;
550 psa->pvData = SAFEARRAY_Malloc(ulSize * psa->cbElements);
555 TRACE("%lu bytes allocated for data at %p (%lu objects).\n",
556 ulSize * psa->cbElements, psa->pvData, ulSize);
563 /*************************************************************************
564 * SafeArrayCreate (OLEAUT32.15)
566 * Create a new SafeArray.
569 * vt [I] Type to store in the safe array
570 * cDims [I] Number of array dimensions
571 * rgsabound [I] Bounds of the array dimensions
574 * Success: A pointer to a new array object.
575 * Failure: NULL, if any parameter is invalid or memory allocation fails.
578 * Win32 allows arrays with 0 sized dimensions. This bug is not reproduced
579 * in the Wine implementation.
582 SAFEARRAY* WINAPI SafeArrayCreate(VARTYPE vt, UINT cDims, SAFEARRAYBOUND *rgsabound)
584 TRACE("(%d->%s,%d,%p)\n", vt, debugstr_vt(vt), cDims, rgsabound);
589 return SAFEARRAY_Create(vt, cDims, rgsabound, 0);
592 /*************************************************************************
593 * SafeArrayCreateEx (OLEAUT32.15)
595 * Create a new SafeArray.
598 * vt [I] Type to store in the safe array
599 * cDims [I] Number of array dimensions
600 * rgsabound [I] Bounds of the array dimensions
601 * pvExtra [I] Extra data
604 * Success: A pointer to a new array object.
605 * Failure: NULL, if any parameter is invalid or memory allocation fails.
610 SAFEARRAY* WINAPI SafeArrayCreateEx(VARTYPE vt, UINT cDims, SAFEARRAYBOUND *rgsabound, LPVOID pvExtra)
613 IRecordInfo* iRecInfo = (IRecordInfo*)pvExtra;
616 TRACE("(%d->%s,%d,%p,%p)\n", vt, debugstr_vt(vt), cDims, rgsabound, pvExtra);
622 IRecordInfo_GetSize(iRecInfo, &ulSize);
624 psa = SAFEARRAY_Create(vt, cDims, rgsabound, ulSize);
631 SafeArraySetRecordInfo(psa, pvExtra);
635 SafeArraySetIID(psa, pvExtra);
642 /************************************************************************
643 * SafeArrayCreateVector (OLEAUT32.411)
645 * Create a one dimensional, contigous SafeArray.
648 * vt [I] Type to store in the safe array
649 * lLbound [I] Lower bound of the array
650 * cElements [I] Number of elements in the array
653 * Success: A pointer to a new array object.
654 * Failure: NULL, if any parameter is invalid or memory allocation fails.
659 SAFEARRAY* WINAPI SafeArrayCreateVector(VARTYPE vt, LONG lLbound, ULONG cElements)
661 TRACE("(%d->%s,%ld,%ld\n", vt, debugstr_vt(vt), lLbound, cElements);
666 return SAFEARRAY_CreateVector(vt, lLbound, cElements, SAFEARRAY_GetVTSize(vt));
669 /************************************************************************
670 * SafeArrayCreateVectorEx (OLEAUT32.411)
672 * Create a one dimensional, contigous SafeArray.
675 * vt [I] Type to store in the safe array
676 * lLbound [I] Lower bound of the array
677 * cElements [I] Number of elements in the array
678 * pvExtra [I] Extra data
681 * Success: A pointer to a new array object.
682 * Failure: NULL, if any parameter is invalid or memory allocation fails.
687 SAFEARRAY* WINAPI SafeArrayCreateVectorEx(VARTYPE vt, LONG lLbound, ULONG cElements, LPVOID pvExtra)
690 IRecordInfo* iRecInfo = (IRecordInfo*)pvExtra;
693 TRACE("(%d->%s,%ld,%ld,%p\n", vt, debugstr_vt(vt), lLbound, cElements, pvExtra);
699 IRecordInfo_GetSize(iRecInfo, &ulSize);
702 ulSize = SAFEARRAY_GetVTSize(vt);
704 psa = SAFEARRAY_CreateVector(vt, lLbound, cElements, ulSize);
711 SafeArraySetRecordInfo(psa, iRecInfo);
715 SafeArraySetIID(psa, pvExtra);
722 /*************************************************************************
723 * SafeArrayDestroyDescriptor (OLEAUT32.38)
725 * Destroy a SafeArray.
728 * psa [I] SafeArray to destroy.
731 * Success: S_OK. The resources used by the array are freed.
732 * Failure: An HRESULT error code indicating the error.
737 HRESULT WINAPI SafeArrayDestroyDescriptor(SAFEARRAY *psa)
739 TRACE("(%p)\n", psa);
743 LPVOID lpv = (char*)psa - SAFEARRAY_HIDDEN_SIZE;
746 return DISP_E_ARRAYISLOCKED; /* Can't destroy a locked array */
748 if (psa->fFeatures & FADF_RECORD)
749 SafeArraySetRecordInfo(psa, NULL);
751 if (psa->fFeatures & FADF_CREATEVECTOR &&
752 !(psa->fFeatures & FADF_DATADELETED))
753 SAFEARRAY_DestroyData(psa, 0); /* Data not previously deleted */
755 if (!SAFEARRAY_Free(lpv))
761 /*************************************************************************
762 * SafeArrayLock (OLEAUT32.21)
764 * Increment the lock counter of a SafeArray.
767 * psa [O] SafeArray to lock
770 * Success: S_OK. The array lock is incremented.
771 * Failure: E_INVALIDARG if psa is NULL, or E_UNEXPECTED if too many locks
772 * are held on the array at once.
775 * In Win32 these locks are not thread safe.
778 HRESULT WINAPI SafeArrayLock(SAFEARRAY *psa)
782 TRACE("(%p)\n", psa);
787 ulLocks = InterlockedIncrement(&psa->cLocks);
789 if (ulLocks > 0xffff) /* Maximum of 16384 locks at a time */
791 WARN("Out of locks!\n");
792 InterlockedDecrement(&psa->cLocks);
798 /*************************************************************************
799 * SafeArrayUnlock (OLEAUT32.22)
801 * Decrement the lock counter of a SafeArray.
804 * psa [O] SafeArray to unlock
807 * Success: S_OK. The array lock is decremented.
808 * Failure: E_INVALIDARG if psa is NULL, or E_UNEXPECTED if no locks are
814 HRESULT WINAPI SafeArrayUnlock(SAFEARRAY *psa)
816 TRACE("(%p)\n", psa);
821 if ((LONG)InterlockedDecrement(&psa->cLocks) < 0)
823 WARN("Unlocked but no lock held!\n");
824 InterlockedIncrement(&psa->cLocks);
830 /*************************************************************************
831 * SafeArrayPutElement (OLEAUT32.26)
833 * Put an item into a SafeArray.
836 * psa [I] SafeArray to insert into
837 * rgIndices [I] Indices to insert at
838 * pvData [I] Data to insert
841 * Success: S_OK. The item is inserted
842 * Failure: An HRESULT error code indicating the error.
847 HRESULT WINAPI SafeArrayPutElement(SAFEARRAY *psa, LONG *rgIndices, void *pvData)
851 TRACE("(%p,%p,%p)\n", psa, rgIndices, pvData);
853 if (!psa || !rgIndices)
858 ERR("Invalid pvData would crash under Win32!\n");
862 hRet = SafeArrayLock(psa);
868 hRet = SafeArrayPtrOfIndex(psa, rgIndices, &lpvDest);
872 if (psa->fFeatures & FADF_VARIANT)
874 VARIANT* lpVariant = (VARIANT*)pvData;
875 VARIANT* lpDest = (VARIANT*)lpvDest;
877 VariantClear(lpDest);
878 VariantCopy(lpDest, lpVariant);
880 else if (psa->fFeatures & FADF_BSTR)
882 BSTR lpBstr = (BSTR)pvData;
883 BSTR* lpDest = (BSTR*)lpvDest;
886 SysFreeString(*lpDest);
890 *lpDest = SysAllocStringByteLen((char*)lpBstr, SysStringByteLen(lpBstr));
892 hRet = E_OUTOFMEMORY;
899 if (psa->fFeatures & (FADF_UNKNOWN|FADF_DISPATCH))
901 LPUNKNOWN lpUnknown = (LPUNKNOWN)pvData;
902 LPUNKNOWN *lpDest = (LPUNKNOWN *)lpvDest;
905 IUnknown_AddRef(lpUnknown);
907 IUnknown_Release(*lpDest);
910 /* Copy the data over */
911 memcpy(lpvDest, pvData, psa->cbElements);
915 SafeArrayUnlock(psa);
921 /*************************************************************************
922 * SafeArrayGetElement (OLEAUT32.25)
924 * Get an item from a SafeArray.
927 * psa [I] SafeArray to get from
928 * rgIndices [I] Indices to get from
929 * pvData [O] Destination for data
932 * Success: S_OK. The item data is returned in pvData.
933 * Failure: An HRESULT error code indicating the error.
938 HRESULT WINAPI SafeArrayGetElement(SAFEARRAY *psa, LONG *rgIndices, void *pvData)
942 TRACE("(%p,%p,%p)\n", psa, rgIndices, pvData);
944 if (!psa || !rgIndices || !pvData)
947 hRet = SafeArrayLock(psa);
953 hRet = SafeArrayPtrOfIndex(psa, rgIndices, &lpvSrc);
957 if (psa->fFeatures & FADF_VARIANT)
959 VARIANT* lpVariant = (VARIANT*)lpvSrc;
960 VARIANT* lpDest = (VARIANT*)pvData;
962 VariantCopy(lpDest, lpVariant);
964 else if (psa->fFeatures & FADF_BSTR)
966 BSTR* lpBstr = (BSTR*)lpvSrc;
967 BSTR* lpDest = (BSTR*)pvData;
971 *lpDest = SysAllocStringByteLen((char*)*lpBstr, SysStringByteLen(*lpBstr));
973 hRet = E_OUTOFMEMORY;
980 if (psa->fFeatures & (FADF_UNKNOWN|FADF_DISPATCH))
982 LPUNKNOWN *lpUnknown = (LPUNKNOWN *)lpvSrc;
985 IUnknown_AddRef(*lpUnknown);
987 /* Copy the data over */
988 memcpy(pvData, lpvSrc, psa->cbElements);
991 SafeArrayUnlock(psa);
996 /*************************************************************************
997 * SafeArrayGetUBound (OLEAUT32.19)
999 * Get the upper bound for a given SafeArray dimension
1002 * psa [I] Array to get dimension upper bound from
1003 * nDim [I] The dimension number to get the upper bound of
1004 * plUbound [O] Destination for the upper bound
1007 * Success: S_OK. plUbound contains the dimensions upper bound.
1008 * Failure: An HRESULT error code indicating the error.
1013 HRESULT WINAPI SafeArrayGetUBound(SAFEARRAY *psa, UINT nDim, LONG *plUbound)
1015 TRACE("(%p,%d,%p)\n", psa, nDim, plUbound);
1017 if (!psa || !plUbound)
1018 return E_INVALIDARG;
1020 if(!nDim || nDim > psa->cDims)
1021 return DISP_E_BADINDEX;
1023 *plUbound = psa->rgsabound[nDim - 1].lLbound +
1024 psa->rgsabound[nDim - 1].cElements - 1;
1029 /*************************************************************************
1030 * SafeArrayGetLBound (OLEAUT32.20)
1032 * Get the lower bound for a given SafeArray dimension
1035 * psa [I] Array to get dimension lower bound from
1036 * nDim [I] The dimension number to get the lowe bound of
1037 * plLbound [O] Destination for the lower bound
1040 * Success: S_OK. plUbound contains the dimensions lower bound.
1041 * Failure: An HRESULT error code indicating the error.
1046 HRESULT WINAPI SafeArrayGetLBound(SAFEARRAY *psa, UINT nDim, LONG *plLbound)
1048 TRACE("(%p,%d,%p)\n", psa, nDim, plLbound);
1050 if (!psa || !plLbound)
1051 return E_INVALIDARG;
1053 if(!nDim || nDim > psa->cDims)
1054 return DISP_E_BADINDEX;
1056 *plLbound = psa->rgsabound[nDim - 1].lLbound;
1060 /*************************************************************************
1061 * SafeArrayGetDim (OLEAUT32.17)
1063 * Get the number of dimensions in a SafeArray.
1066 * psa [I] Array to get the dimensions of
1069 * The number of array dimensions in psa, or 0 if psa is NULL.
1074 UINT WINAPI SafeArrayGetDim(SAFEARRAY *psa)
1076 TRACE("(%p) returning %ld\n", psa, psa ? psa->cDims : 0ul);
1077 return psa ? psa->cDims : 0;
1080 /*************************************************************************
1081 * SafeArrayGetElemsize (OLEAUT32.18)
1083 * Get the size of an element in a SafeArray.
1086 * psa [I] Array to get the element size from
1089 * The size of a single element in psa, or 0 if psa is NULL.
1094 UINT WINAPI SafeArrayGetElemsize(SAFEARRAY *psa)
1096 TRACE("(%p) returning %ld\n", psa, psa ? psa->cbElements : 0ul);
1097 return psa ? psa->cbElements : 0;
1100 /*************************************************************************
1101 * SafeArrayAccessData (OLEAUT32.23)
1103 * Lock a SafeArray and return a pointer to its data.
1106 * psa [I] Array to get the data pointer from
1107 * ppvData [O] Destination for the arrays data pointer
1110 * Success: S_OK. ppvData contains the arrays data pointer, and the array
1112 * Failure: An HRESULT error code indicating the error.
1117 HRESULT WINAPI SafeArrayAccessData(SAFEARRAY *psa, void **ppvData)
1119 TRACE("(%p,%p)\n", psa, ppvData);
1121 if(!psa || !ppvData)
1122 return E_INVALIDARG;
1124 if (SUCCEEDED(SafeArrayLock(psa)))
1126 *ppvData = psa->pvData;
1130 return E_UNEXPECTED;
1134 /*************************************************************************
1135 * SafeArrayUnaccessData (OLEAUT32.24)
1137 * Unlock a SafeArray after accessing its data.
1140 * psa [I] Array to unlock
1143 * Success: S_OK. The array is unlocked.
1144 * Failure: An HRESULT error code indicating the error.
1149 HRESULT WINAPI SafeArrayUnaccessData(SAFEARRAY *psa)
1151 TRACE("(%p)\n", psa);
1152 return SafeArrayUnlock(psa);
1155 /************************************************************************
1156 * SafeArrayPtrOfIndex (OLEAUT32.148)
1158 * Get the address of an item in a SafeArray.
1161 * psa [I] Array to get the items address from
1162 * rgIndices [I] Index of the item in the array
1163 * ppvData [O] Destination for item address
1166 * Success: S_OK. ppvData contains a pointer to the item.
1167 * Failure: An HRESULT error code indicating the error.
1170 * This function does not lock the array.
1175 HRESULT WINAPI SafeArrayPtrOfIndex(SAFEARRAY *psa, LONG *rgIndices, void **ppvData)
1178 ULONG cell = 0, dimensionSize = 1;
1179 SAFEARRAYBOUND* psab;
1182 TRACE("(%p,%p,%p)\n", psa, rgIndices, ppvData);
1184 /* The general formula for locating the cell number of an entry in an n
1185 * dimensional array (where cn = coordinate in dimension dn) is:
1187 * c1 + c2 * sizeof(d1) + c3 * sizeof(d2) ... + cn * sizeof(c(n-1))
1189 * We calculate the size of the last dimension at each step through the
1190 * dimensions to avoid recursing to calculate the last dimensions size.
1192 if (!psa || !rgIndices || !ppvData)
1193 return E_INVALIDARG;
1195 psab = psa->rgsabound;
1198 if (c1 < psab->lLbound || c1 >= psab->lLbound + (LONG)psab->cElements)
1199 return DISP_E_BADINDEX; /* Initial index out of bounds */
1201 for (dim = 1; dim < psa->cDims; dim++)
1203 dimensionSize *= psab->cElements;
1207 if (!psab->cElements ||
1208 *rgIndices < psab->lLbound ||
1209 *rgIndices >= psab->lLbound + (LONG)psab->cElements)
1210 return DISP_E_BADINDEX; /* Index out of bounds */
1212 cell += (*rgIndices - psab->lLbound) * dimensionSize;
1216 cell += (c1 - psa->rgsabound[0].lLbound);
1218 *ppvData = (char*)psa->pvData + cell * psa->cbElements;
1222 /************************************************************************
1223 * SafeArrayDestroyData (OLEAUT32.39)
1225 * Destroy the data associated with a SafeArray.
1228 * psa [I] Array to delete the data from
1231 * Success: S_OK. All items and the item data are freed.
1232 * Failure: An HRESULT error code indicating the error.
1237 HRESULT WINAPI SafeArrayDestroyData(SAFEARRAY *psa)
1239 TRACE("(%p)\n", psa);
1242 return E_INVALIDARG;
1245 return DISP_E_ARRAYISLOCKED; /* Cant delete a locked array */
1249 /* Delete the actual item data */
1250 if (FAILED(SAFEARRAY_DestroyData(psa, 0)))
1251 return E_UNEXPECTED;
1253 /* If this is not a vector, free the data memory block */
1254 if (!(psa->fFeatures & FADF_CREATEVECTOR))
1256 if (!SAFEARRAY_Free(psa->pvData))
1257 return E_UNEXPECTED;
1261 psa->fFeatures |= FADF_DATADELETED; /* Mark the data deleted */
1267 /************************************************************************
1268 * SafeArrayCopyData (OLEAUT32.412)
1270 * Copy all data from one SafeArray to another.
1273 * psaSource [I] Source for copy
1274 * psaTarget [O] Destination for copy
1277 * Success: S_OK. psaTarget contains a copy of psaSource.
1278 * Failure: An HRESULT error code indicating the error.
1281 * The two arrays must have the same number of dimensions and elements.
1286 HRESULT WINAPI SafeArrayCopyData(SAFEARRAY *psaSource, SAFEARRAY *psaTarget)
1290 TRACE("(%p,%p)\n", psaSource, psaTarget);
1292 if (!psaSource || !psaTarget ||
1293 psaSource->cDims != psaTarget->cDims ||
1294 psaSource->cbElements != psaTarget->cbElements)
1295 return E_INVALIDARG;
1297 /* Each dimension must be the same size */
1298 for (dim = psaSource->cDims - 1; dim >= 0 ; dim--)
1299 if (psaSource->rgsabound[dim].cElements !=
1300 psaTarget->rgsabound[dim].cElements)
1301 return E_INVALIDARG;
1303 if (SUCCEEDED(SAFEARRAY_DestroyData(psaTarget, 0)) &&
1304 SUCCEEDED(SAFEARRAY_CopyData(psaSource, psaTarget)))
1306 return E_UNEXPECTED;
1309 /************************************************************************
1310 * SafeArrayDestroy (OLEAUT32.16)
1312 * Destroy a SafeArray.
1315 * psa [I] Array to destroy
1318 * Success: S_OK. All resources used by the array are freed.
1319 * Failure: An HRESULT error code indicating the error.
1324 HRESULT WINAPI SafeArrayDestroy(SAFEARRAY *psa)
1326 TRACE("(%p)\n", psa);
1329 return E_INVALIDARG;
1332 return DISP_E_ARRAYISLOCKED;
1334 /* Native doesn't check to see if the free succeeds */
1335 SafeArrayDestroyData(psa);
1336 SafeArrayDestroyDescriptor(psa);
1340 /************************************************************************
1341 * SafeArrayCopy (OLEAUT32.27)
1343 * Make a duplicate of a SafeArray.
1346 * psa [I] Source for copy
1347 * ppsaOut [O] Destination for new copy
1350 * Success: S_OK. ppsaOut contains a copy of the array.
1351 * Failure: An HRESULT error code indicating the error.
1356 HRESULT WINAPI SafeArrayCopy(SAFEARRAY *psa, SAFEARRAY **ppsaOut)
1360 TRACE("(%p,%p)\n", psa, ppsaOut);
1363 return E_INVALIDARG;
1368 return S_OK; /* Handles copying of NULL arrays */
1370 if (psa->fFeatures & (FADF_RECORD|FADF_HAVEIID|FADF_HAVEVARTYPE))
1373 if (FAILED(SafeArrayGetVartype(psa, &vt)))
1374 hRet = E_UNEXPECTED;
1376 hRet = SafeArrayAllocDescriptorEx(vt, psa->cDims, ppsaOut);
1380 hRet = SafeArrayAllocDescriptor(psa->cDims, ppsaOut);
1381 if (SUCCEEDED(hRet))
1383 (*ppsaOut)->fFeatures = psa->fFeatures & ~FADF_CREATEVECTOR;
1384 (*ppsaOut)->cbElements = psa->cbElements;
1388 if (SUCCEEDED(hRet))
1390 /* Copy dimension bounds */
1391 memcpy((*ppsaOut)->rgsabound, psa->rgsabound, psa->cDims * sizeof(SAFEARRAYBOUND));
1393 (*ppsaOut)->pvData = SAFEARRAY_Malloc(SAFEARRAY_GetCellCount(psa) * psa->cbElements);
1395 if ((*ppsaOut)->pvData)
1397 hRet = SAFEARRAY_CopyData(psa, *ppsaOut);
1399 if (SUCCEEDED(hRet))
1402 SAFEARRAY_Free((*ppsaOut)->pvData);
1404 SafeArrayDestroyDescriptor(*ppsaOut);
1410 /************************************************************************
1411 * SafeArrayRedim (OLEAUT32.40)
1413 * Changes the characteristics of the last dimension of a SafeArray
1416 * psa [I] Array to change
1417 * psabound [I] New bound details for the last dimension
1420 * Success: S_OK. psa is updated to reflect the new bounds.
1421 * Failure: An HRESULT error code indicating the error.
1426 HRESULT WINAPI SafeArrayRedim(SAFEARRAY *psa, SAFEARRAYBOUND *psabound)
1428 SAFEARRAYBOUND *oldBounds;
1430 TRACE("(%p,%p)\n", psa, psabound);
1432 if (!psa || psa->fFeatures & FADF_FIXEDSIZE || !psabound)
1433 return E_INVALIDARG;
1435 if (psa->cLocks > 0)
1436 return DISP_E_ARRAYISLOCKED;
1438 if (FAILED(SafeArrayLock(psa)))
1439 return E_UNEXPECTED;
1441 oldBounds = &psa->rgsabound[psa->cDims - 1];
1442 oldBounds->lLbound = psabound->lLbound;
1444 if (psabound->cElements != oldBounds->cElements)
1446 if (psabound->cElements < oldBounds->cElements)
1448 /* Shorten the final dimension. */
1449 ULONG ulStartCell = psa->cDims == 1 ? 0 : SAFEARRAY_GetDimensionCells(psa, psa->cDims - 1);
1451 ulStartCell += psabound->cElements;
1452 SAFEARRAY_DestroyData(psa, ulStartCell);
1456 /* Lengthen the final dimension */
1457 ULONG ulOldSize, ulNewSize;
1460 ulOldSize = SAFEARRAY_GetCellCount(psa) * psa->cbElements;
1462 ulNewSize = (ulOldSize / oldBounds->cElements) * psabound->cElements;
1464 int oldelems = oldBounds->cElements;
1465 oldBounds->cElements = psabound->cElements;
1466 ulNewSize = SAFEARRAY_GetCellCount(psa) * psa->cbElements;
1467 oldBounds->cElements = oldelems;
1470 if (!(pvNewData = SAFEARRAY_Malloc(ulNewSize)))
1472 SafeArrayUnlock(psa);
1473 return E_UNEXPECTED;
1476 memcpy(pvNewData, psa->pvData, ulOldSize);
1477 SAFEARRAY_Free(psa->pvData);
1478 psa->pvData = pvNewData;
1480 oldBounds->cElements = psabound->cElements;
1483 SafeArrayUnlock(psa);
1487 /************************************************************************
1488 * SafeArrayGetVartype (OLEAUT32.77)
1490 * Get the type of the items in a SafeArray.
1493 * psa [I] Array to get the type from
1494 * pvt [O] Destination for the type
1497 * Success: S_OK. pvt contains the type of the items.
1498 * Failure: An HRESULT error code indicating the error.
1503 HRESULT WINAPI SafeArrayGetVartype(SAFEARRAY* psa, VARTYPE* pvt)
1505 TRACE("(%p,%p)\n", psa, pvt);
1508 return E_INVALIDARG;
1510 if (psa->fFeatures & FADF_RECORD)
1512 else if (psa->fFeatures & FADF_HAVEIID)
1514 else if (psa->fFeatures & FADF_HAVEVARTYPE)
1516 VARTYPE vt = SAFEARRAY_GetHiddenDWORD(psa);
1520 return E_INVALIDARG;
1525 /************************************************************************
1526 * SafeArraySetRecordInfo (OLEAUT32.@)
1528 * Set the record info for a SafeArray.
1531 * psa [I] Array to set the record info for
1532 * pRinfo [I] Record info
1535 * Success: S_OK. The record info is stored with the array.
1536 * Failure: An HRESULT error code indicating the error.
1541 HRESULT WINAPI SafeArraySetRecordInfo(SAFEARRAY *psa, IRecordInfo *pRinfo)
1543 IRecordInfo** dest = (IRecordInfo**)psa;
1545 TRACE("(%p,%p)\n", psa, pRinfo);
1547 if (!psa || !(psa->fFeatures & FADF_RECORD))
1548 return E_INVALIDARG;
1551 IRecordInfo_AddRef(pRinfo);
1554 IRecordInfo_Release(dest[-1]);
1560 /************************************************************************
1561 * SafeArrayGetRecordInfo (OLEAUT32.@)
1563 * Get the record info from a SafeArray.
1566 * psa [I] Array to get the record info from
1567 * pRinfo [O] Destination for the record info
1570 * Success: S_OK. pRinfo contains the record info, or NULL if there was none.
1571 * Failure: An HRESULT error code indicating the error.
1576 HRESULT WINAPI SafeArrayGetRecordInfo(SAFEARRAY *psa, IRecordInfo **pRinfo)
1578 IRecordInfo** src = (IRecordInfo**)psa;
1580 TRACE("(%p,%p)\n", psa, pRinfo);
1582 if (!psa || !pRinfo || !(psa->fFeatures & FADF_RECORD))
1583 return E_INVALIDARG;
1588 IRecordInfo_AddRef(*pRinfo);
1592 /************************************************************************
1593 * SafeArraySetIID (OLEAUT32.@)
1595 * Set the IID for a SafeArray.
1598 * psa [I] Array to set the IID from
1602 * Success: S_OK. The IID is stored with the array
1603 * Failure: An HRESULT error code indicating the error.
1608 HRESULT WINAPI SafeArraySetIID(SAFEARRAY *psa, REFGUID guid)
1610 GUID* dest = (GUID*)psa;
1612 TRACE("(%p,%s)\n", psa, debugstr_guid(guid));
1614 if (!psa || !guid || !(psa->fFeatures & FADF_HAVEIID))
1615 return E_INVALIDARG;
1621 /************************************************************************
1622 * SafeArrayGetIID (OLEAUT32.@)
1624 * Get the IID from a SafeArray.
1627 * psa [I] Array to get the ID from
1628 * pGuid [O] Destination for the IID
1631 * Success: S_OK. pRinfo contains the IID, or NULL if there was none.
1632 * Failure: An HRESULT error code indicating the error.
1637 HRESULT WINAPI SafeArrayGetIID(SAFEARRAY *psa, GUID *pGuid)
1639 GUID* src = (GUID*)psa;
1641 TRACE("(%p,%p)\n", psa, pGuid);
1643 if (!psa || !pGuid || !(psa->fFeatures & FADF_HAVEIID))
1644 return E_INVALIDARG;
1650 /************************************************************************
1651 * VectorFromBstr (OLEAUT32.@)
1653 * Create a SafeArray Vector from the bytes of a BSTR.
1656 * bstr [I] String to get bytes from
1657 * ppsa [O] Destination for the array
1660 * Success: S_OK. ppsa contains the strings bytes as a VT_UI1 array.
1661 * Failure: An HRESULT error code indicating the error.
1666 HRESULT WINAPI VectorFromBstr(BSTR bstr, SAFEARRAY **ppsa)
1670 TRACE("(%p,%p)\n", bstr, ppsa);
1673 return E_INVALIDARG;
1676 sab.cElements = SysStringByteLen(bstr);
1678 *ppsa = SAFEARRAY_Create(VT_UI1, 1, &sab, 0);
1682 memcpy((*ppsa)->pvData, bstr, sab.cElements);
1685 return E_OUTOFMEMORY;
1688 /************************************************************************
1689 * BstrFromVector (OLEAUT32.@)
1691 * Create a BSTR from a SafeArray.
1694 * psa [I] Source array
1695 * pbstr [O] Destination for output BSTR
1698 * Success: S_OK. pbstr contains the arrays data.
1699 * Failure: An HRESULT error code indicating the error.
1702 * psa must be a 1 dimensional array of a 1 byte type.
1707 HRESULT WINAPI BstrFromVector(SAFEARRAY *psa, BSTR *pbstr)
1709 TRACE("(%p,%p)\n", psa, pbstr);
1712 return E_INVALIDARG;
1716 if (!psa || psa->cbElements != 1 || psa->cDims != 1)
1717 return E_INVALIDARG;
1719 *pbstr = SysAllocStringByteLen(psa->pvData, psa->rgsabound[0].cElements);
1721 return E_OUTOFMEMORY;