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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, 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...]
46 #include "wine/debug.h"
48 WINE_DEFAULT_DEBUG_CHANNEL(variant);
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 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
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 const 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 /* Allocate a descriptor for an array */
173 static HRESULT SAFEARRAY_AllocDescriptor(ULONG ulSize, SAFEARRAY **ppsaOut)
175 *ppsaOut = (SAFEARRAY*)((char*)SAFEARRAY_Malloc(ulSize + SAFEARRAY_HIDDEN_SIZE) + SAFEARRAY_HIDDEN_SIZE);
183 /* Set the features of an array */
184 static void SAFEARRAY_SetFeatures(VARTYPE vt, SAFEARRAY *psa)
186 /* Set the IID if we have one, otherwise set the type */
187 if (vt == VT_DISPATCH)
189 psa->fFeatures = FADF_HAVEIID;
190 SafeArraySetIID(psa, &IID_IDispatch);
192 else if (vt == VT_UNKNOWN)
194 psa->fFeatures = FADF_HAVEIID;
195 SafeArraySetIID(psa, &IID_IUnknown);
197 else if (vt == VT_RECORD)
198 psa->fFeatures = FADF_RECORD;
201 psa->fFeatures = FADF_HAVEVARTYPE;
202 SAFEARRAY_SetHiddenDWORD(psa, vt);
206 /* Create an array */
207 static SAFEARRAY* SAFEARRAY_Create(VARTYPE vt, UINT cDims, SAFEARRAYBOUND *rgsabound, ULONG ulSize)
209 SAFEARRAY *psa = NULL;
215 if (SUCCEEDED(SafeArrayAllocDescriptorEx(vt, cDims, &psa)))
219 case VT_BSTR: psa->fFeatures |= FADF_BSTR; break;
220 case VT_UNKNOWN: psa->fFeatures |= FADF_UNKNOWN; break;
221 case VT_DISPATCH: psa->fFeatures |= FADF_DISPATCH; break;
222 case VT_VARIANT: psa->fFeatures |= FADF_VARIANT; break;
225 for (i = 0; i < cDims; i++)
226 memcpy(psa->rgsabound + i, rgsabound + cDims - 1 - i, sizeof(SAFEARRAYBOUND));
229 psa->cbElements = ulSize;
231 if (FAILED(SafeArrayAllocData(psa)))
233 SafeArrayDestroyDescriptor(psa);
240 /* Create an array as a vector */
241 static SAFEARRAY* SAFEARRAY_CreateVector(VARTYPE vt, LONG lLbound, ULONG cElements, ULONG ulSize)
243 SAFEARRAY *psa = NULL;
245 if (ulSize || (vt == VT_RECORD))
247 /* Allocate the header and data together */
248 if (SUCCEEDED(SAFEARRAY_AllocDescriptor(sizeof(SAFEARRAY) + ulSize * cElements, &psa)))
250 SAFEARRAY_SetFeatures(vt, psa);
253 psa->fFeatures |= FADF_CREATEVECTOR;
254 psa->pvData = &psa[1]; /* Data follows the header */
255 psa->cbElements = ulSize;
256 psa->rgsabound[0].cElements = cElements;
257 psa->rgsabound[0].lLbound = lLbound;
261 case VT_BSTR: psa->fFeatures |= FADF_BSTR; break;
262 case VT_UNKNOWN: psa->fFeatures |= FADF_UNKNOWN; break;
263 case VT_DISPATCH: psa->fFeatures |= FADF_DISPATCH; break;
264 case VT_VARIANT: psa->fFeatures |= FADF_VARIANT; break;
271 /* Free data items in an array */
272 static HRESULT SAFEARRAY_DestroyData(SAFEARRAY *psa, ULONG ulStartCell)
274 if (psa->pvData && !(psa->fFeatures & FADF_DATADELETED))
276 ULONG ulCellCount = SAFEARRAY_GetCellCount(psa);
278 if (ulStartCell > ulCellCount) {
279 FIXME("unexpted ulcellcount %ld, start %ld\n",ulCellCount,ulStartCell);
283 ulCellCount -= ulStartCell;
285 if (psa->fFeatures & (FADF_UNKNOWN|FADF_DISPATCH))
287 LPUNKNOWN *lpUnknown = (LPUNKNOWN *)psa->pvData + ulStartCell;
292 IUnknown_Release(*lpUnknown);
296 else if (psa->fFeatures & (FADF_RECORD))
298 IRecordInfo *lpRecInfo;
300 if (SUCCEEDED(SafeArrayGetRecordInfo(psa, &lpRecInfo)))
302 PBYTE pRecordData = (PBYTE)psa->pvData;
305 IRecordInfo_RecordClear(lpRecInfo, pRecordData);
306 pRecordData += psa->cbElements;
308 IRecordInfo_Release(lpRecInfo);
311 else if (psa->fFeatures & FADF_BSTR)
313 BSTR* lpBstr = (BSTR*)psa->pvData + ulStartCell;
318 SysFreeString(*lpBstr);
322 else if (psa->fFeatures & FADF_VARIANT)
324 VARIANT* lpVariant = (VARIANT*)psa->pvData + ulStartCell;
328 HRESULT hRet = VariantClear(lpVariant);
330 if (FAILED(hRet)) FIXME("VariantClear of element failed!\n");
338 /* Copy data items from one array to another */
339 static HRESULT SAFEARRAY_CopyData(SAFEARRAY *psa, SAFEARRAY *dest)
343 else if (!dest->pvData || psa->fFeatures & FADF_DATADELETED)
347 ULONG ulCellCount = SAFEARRAY_GetCellCount(psa);
349 dest->fFeatures = (dest->fFeatures & FADF_CREATEVECTOR) |
350 (psa->fFeatures & ~(FADF_CREATEVECTOR|FADF_DATADELETED));
352 if (psa->fFeatures & FADF_VARIANT)
354 VARIANT* lpVariant = (VARIANT*)psa->pvData;
355 VARIANT* lpDest = (VARIANT*)dest->pvData;
361 hRet = VariantCopy(lpDest, lpVariant);
362 if (FAILED(hRet)) FIXME("VariantCopy failed with 0x%lx\n", hRet);
367 else if (psa->fFeatures & FADF_BSTR)
369 BSTR* lpBstr = (BSTR*)psa->pvData;
370 BSTR* lpDest = (BSTR*)dest->pvData;
376 *lpDest = SysAllocStringByteLen((char*)*lpBstr, SysStringByteLen(*lpBstr));
378 return E_OUTOFMEMORY;
388 /* Copy the data over */
389 memcpy(dest->pvData, psa->pvData, ulCellCount * psa->cbElements);
391 if (psa->fFeatures & (FADF_UNKNOWN|FADF_DISPATCH))
393 LPUNKNOWN *lpUnknown = (LPUNKNOWN *)dest->pvData;
398 IUnknown_AddRef(*lpUnknown);
404 if (psa->fFeatures & FADF_RECORD)
406 IRecordInfo* pRecInfo = NULL;
408 SafeArrayGetRecordInfo(psa, &pRecInfo);
409 SafeArraySetRecordInfo(dest, pRecInfo);
413 /* Release because Get() adds a reference */
414 IRecordInfo_Release(pRecInfo);
417 else if (psa->fFeatures & FADF_HAVEIID)
420 SafeArrayGetIID(psa, &guid);
421 SafeArraySetIID(dest, &guid);
423 else if (psa->fFeatures & FADF_HAVEVARTYPE)
425 SAFEARRAY_SetHiddenDWORD(dest, SAFEARRAY_GetHiddenDWORD(psa));
431 /*************************************************************************
432 * SafeArrayAllocDescriptor (OLEAUT32.36)
434 * Allocate and initialise a descriptor for a SafeArray.
437 * cDims [I] Number of dimensions of the array
438 * ppsaOut [O] Destination for new descriptor
441 * Success: S_OK. ppsaOut is filled with a newly allocated descriptor.
442 * Failure: An HRESULT error code indicating the error.
447 HRESULT WINAPI SafeArrayAllocDescriptor(UINT cDims, SAFEARRAY **ppsaOut)
451 TRACE("(%d,%p)\n", cDims, ppsaOut);
453 if (!cDims || cDims >= 0x10000) /* Maximum 65535 dimensions */
459 /* We need enough space for the header and its bounds */
460 allocSize = sizeof(SAFEARRAY) + sizeof(SAFEARRAYBOUND) * (cDims - 1);
462 if (FAILED(SAFEARRAY_AllocDescriptor(allocSize, ppsaOut)))
465 (*ppsaOut)->cDims = cDims;
467 TRACE("(%d): %lu bytes allocated for descriptor.\n", cDims, allocSize);
471 /*************************************************************************
472 * SafeArrayAllocDescriptorEx (OLEAUT32.41)
474 * Allocate and initialise a descriptor for a SafeArray of a given type.
477 * vt [I] The type of items to store in the array
478 * cDims [I] Number of dimensions of the array
479 * ppsaOut [O] Destination for new descriptor
482 * Success: S_OK. ppsaOut is filled with a newly allocated descriptor.
483 * Failure: An HRESULT error code indicating the error.
486 * - This function does not chack that vt is an allowed VARTYPE.
487 * - Unlike SafeArrayAllocDescriptor(), vt is associated with the array.
490 HRESULT WINAPI SafeArrayAllocDescriptorEx(VARTYPE vt, UINT cDims, SAFEARRAY **ppsaOut)
493 HRESULT hRet = E_UNEXPECTED;
495 TRACE("(%d->%s,%d,%p)\n", vt, debugstr_vt(vt), cDims, ppsaOut);
497 cbElements = SAFEARRAY_GetVTSize(vt);
499 WARN("Creating a descriptor with an invalid VARTYPE!\n");
501 hRet = SafeArrayAllocDescriptor(cDims, ppsaOut);
505 SAFEARRAY_SetFeatures(vt, *ppsaOut);
506 (*ppsaOut)->cbElements = cbElements;
511 /*************************************************************************
512 * SafeArrayAllocData (OLEAUT32.37)
514 * Allocate the data area of a SafeArray.
517 * psa [I] SafeArray to allocate the data area of.
520 * Success: S_OK. The data area is allocated and initialised.
521 * Failure: An HRESULT error code indicating the error.
526 HRESULT WINAPI SafeArrayAllocData(SAFEARRAY *psa)
528 HRESULT hRet = E_INVALIDARG;
530 TRACE("(%p)\n", psa);
534 ULONG ulSize = SAFEARRAY_GetCellCount(psa);
536 hRet = E_OUTOFMEMORY;
540 psa->pvData = SAFEARRAY_Malloc(ulSize * psa->cbElements);
545 TRACE("%lu bytes allocated for data at %p (%lu objects).\n",
546 ulSize * psa->cbElements, psa->pvData, ulSize);
553 /*************************************************************************
554 * SafeArrayCreate (OLEAUT32.15)
556 * Create a new SafeArray.
559 * vt [I] Type to store in the safe array
560 * cDims [I] Number of array dimensions
561 * rgsabound [I] Bounds of the array dimensions
564 * Success: A pointer to a new array object.
565 * Failure: NULL, if any parameter is invalid or memory allocation fails.
568 * Win32 allows arrays with 0 sized dimensions. This bug is not reproduced
569 * in the Wine implementation.
572 SAFEARRAY* WINAPI SafeArrayCreate(VARTYPE vt, UINT cDims, SAFEARRAYBOUND *rgsabound)
574 TRACE("(%d->%s,%d,%p)\n", vt, debugstr_vt(vt), cDims, rgsabound);
579 return SAFEARRAY_Create(vt, cDims, rgsabound, 0);
582 /*************************************************************************
583 * SafeArrayCreateEx (OLEAUT32.15)
585 * Create a new SafeArray.
588 * vt [I] Type to store in the safe array
589 * cDims [I] Number of array dimensions
590 * rgsabound [I] Bounds of the array dimensions
591 * pvExtra [I] Extra data
594 * Success: A pointer to a new array object.
595 * Failure: NULL, if any parameter is invalid or memory allocation fails.
600 SAFEARRAY* WINAPI SafeArrayCreateEx(VARTYPE vt, UINT cDims, SAFEARRAYBOUND *rgsabound, LPVOID pvExtra)
603 IRecordInfo* iRecInfo = (IRecordInfo*)pvExtra;
606 TRACE("(%d->%s,%d,%p,%p)\n", vt, debugstr_vt(vt), cDims, rgsabound, pvExtra);
612 IRecordInfo_GetSize(iRecInfo, &ulSize);
614 psa = SAFEARRAY_Create(vt, cDims, rgsabound, ulSize);
621 SafeArraySetRecordInfo(psa, pvExtra);
625 SafeArraySetIID(psa, pvExtra);
632 /************************************************************************
633 * SafeArrayCreateVector (OLEAUT32.411)
635 * Create a one dimensional, contiguous SafeArray.
638 * vt [I] Type to store in the safe array
639 * lLbound [I] Lower bound of the array
640 * cElements [I] Number of elements in the array
643 * Success: A pointer to a new array object.
644 * Failure: NULL, if any parameter is invalid or memory allocation fails.
649 SAFEARRAY* WINAPI SafeArrayCreateVector(VARTYPE vt, LONG lLbound, ULONG cElements)
651 TRACE("(%d->%s,%ld,%ld\n", vt, debugstr_vt(vt), lLbound, cElements);
656 return SAFEARRAY_CreateVector(vt, lLbound, cElements, SAFEARRAY_GetVTSize(vt));
659 /************************************************************************
660 * SafeArrayCreateVectorEx (OLEAUT32.411)
662 * Create a one dimensional, contiguous SafeArray.
665 * vt [I] Type to store in the safe array
666 * lLbound [I] Lower bound of the array
667 * cElements [I] Number of elements in the array
668 * pvExtra [I] Extra data
671 * Success: A pointer to a new array object.
672 * Failure: NULL, if any parameter is invalid or memory allocation fails.
677 SAFEARRAY* WINAPI SafeArrayCreateVectorEx(VARTYPE vt, LONG lLbound, ULONG cElements, LPVOID pvExtra)
680 IRecordInfo* iRecInfo = (IRecordInfo*)pvExtra;
683 TRACE("(%d->%s,%ld,%ld,%p\n", vt, debugstr_vt(vt), lLbound, cElements, pvExtra);
689 IRecordInfo_GetSize(iRecInfo, &ulSize);
692 ulSize = SAFEARRAY_GetVTSize(vt);
694 psa = SAFEARRAY_CreateVector(vt, lLbound, cElements, ulSize);
701 SafeArraySetRecordInfo(psa, iRecInfo);
705 SafeArraySetIID(psa, pvExtra);
712 /*************************************************************************
713 * SafeArrayDestroyDescriptor (OLEAUT32.38)
715 * Destroy a SafeArray.
718 * psa [I] SafeArray to destroy.
721 * Success: S_OK. The resources used by the array are freed.
722 * Failure: An HRESULT error code indicating the error.
727 HRESULT WINAPI SafeArrayDestroyDescriptor(SAFEARRAY *psa)
729 TRACE("(%p)\n", psa);
733 LPVOID lpv = (char*)psa - SAFEARRAY_HIDDEN_SIZE;
736 return DISP_E_ARRAYISLOCKED; /* Can't destroy a locked array */
738 if (psa->fFeatures & FADF_RECORD)
739 SafeArraySetRecordInfo(psa, NULL);
741 if (psa->fFeatures & FADF_CREATEVECTOR &&
742 !(psa->fFeatures & FADF_DATADELETED))
743 SAFEARRAY_DestroyData(psa, 0); /* Data not previously deleted */
745 if (!SAFEARRAY_Free(lpv))
751 /*************************************************************************
752 * SafeArrayLock (OLEAUT32.21)
754 * Increment the lock counter of a SafeArray.
757 * psa [O] SafeArray to lock
760 * Success: S_OK. The array lock is incremented.
761 * Failure: E_INVALIDARG if psa is NULL, or E_UNEXPECTED if too many locks
762 * are held on the array at once.
765 * In Win32 these locks are not thread safe.
768 HRESULT WINAPI SafeArrayLock(SAFEARRAY *psa)
772 TRACE("(%p)\n", psa);
777 ulLocks = InterlockedIncrement( (LONG*) &psa->cLocks);
779 if (ulLocks > 0xffff) /* Maximum of 16384 locks at a time */
781 WARN("Out of locks!\n");
782 InterlockedDecrement( (LONG*) &psa->cLocks);
788 /*************************************************************************
789 * SafeArrayUnlock (OLEAUT32.22)
791 * Decrement the lock counter of a SafeArray.
794 * psa [O] SafeArray to unlock
797 * Success: S_OK. The array lock is decremented.
798 * Failure: E_INVALIDARG if psa is NULL, or E_UNEXPECTED if no locks are
804 HRESULT WINAPI SafeArrayUnlock(SAFEARRAY *psa)
806 TRACE("(%p)\n", psa);
811 if ((LONG)InterlockedDecrement( (LONG*) &psa->cLocks) < 0)
813 WARN("Unlocked but no lock held!\n");
814 InterlockedIncrement( (LONG*) &psa->cLocks);
820 /*************************************************************************
821 * SafeArrayPutElement (OLEAUT32.26)
823 * Put an item into a SafeArray.
826 * psa [I] SafeArray to insert into
827 * rgIndices [I] Indices to insert at
828 * pvData [I] Data to insert
831 * Success: S_OK. The item is inserted
832 * Failure: An HRESULT error code indicating the error.
837 HRESULT WINAPI SafeArrayPutElement(SAFEARRAY *psa, LONG *rgIndices, void *pvData)
841 TRACE("(%p,%p,%p)\n", psa, rgIndices, pvData);
843 if (!psa || !rgIndices)
848 ERR("Invalid pvData would crash under Win32!\n");
852 hRet = SafeArrayLock(psa);
858 hRet = SafeArrayPtrOfIndex(psa, rgIndices, &lpvDest);
862 if (psa->fFeatures & FADF_VARIANT)
864 VARIANT* lpVariant = (VARIANT*)pvData;
865 VARIANT* lpDest = (VARIANT*)lpvDest;
867 hRet = VariantClear(lpDest);
868 if (FAILED(hRet)) FIXME("VariantClear failed with 0x%lx\n", hRet);
869 hRet = VariantCopy(lpDest, lpVariant);
870 if (FAILED(hRet)) FIXME("VariantCopy failed with 0x%lx\n", hRet);
872 else if (psa->fFeatures & FADF_BSTR)
874 BSTR lpBstr = (BSTR)pvData;
875 BSTR* lpDest = (BSTR*)lpvDest;
878 SysFreeString(*lpDest);
880 *lpDest = SysAllocStringByteLen((char*)lpBstr, SysStringByteLen(lpBstr));
882 hRet = E_OUTOFMEMORY;
886 if (psa->fFeatures & (FADF_UNKNOWN|FADF_DISPATCH))
888 LPUNKNOWN lpUnknown = (LPUNKNOWN)pvData;
889 LPUNKNOWN *lpDest = (LPUNKNOWN *)lpvDest;
892 IUnknown_AddRef(lpUnknown);
894 IUnknown_Release(*lpDest);
897 /* Copy the data over */
898 memcpy(lpvDest, pvData, psa->cbElements);
902 SafeArrayUnlock(psa);
908 /*************************************************************************
909 * SafeArrayGetElement (OLEAUT32.25)
911 * Get an item from a SafeArray.
914 * psa [I] SafeArray to get from
915 * rgIndices [I] Indices to get from
916 * pvData [O] Destination for data
919 * Success: S_OK. The item data is returned in pvData.
920 * Failure: An HRESULT error code indicating the error.
925 HRESULT WINAPI SafeArrayGetElement(SAFEARRAY *psa, LONG *rgIndices, void *pvData)
929 TRACE("(%p,%p,%p)\n", psa, rgIndices, pvData);
931 if (!psa || !rgIndices || !pvData)
934 hRet = SafeArrayLock(psa);
940 hRet = SafeArrayPtrOfIndex(psa, rgIndices, &lpvSrc);
944 if (psa->fFeatures & FADF_VARIANT)
946 VARIANT* lpVariant = (VARIANT*)lpvSrc;
947 VARIANT* lpDest = (VARIANT*)pvData;
949 /* The original content of pvData is ignored. */
950 V_VT(lpDest) = VT_EMPTY;
951 hRet = VariantCopy(lpDest, lpVariant);
952 if (FAILED(hRet)) FIXME("VariantCopy failed with 0x%lx\n", hRet);
954 else if (psa->fFeatures & FADF_BSTR)
956 BSTR* lpBstr = (BSTR*)lpvSrc;
957 BSTR* lpDest = (BSTR*)pvData;
961 *lpDest = SysAllocStringByteLen((char*)*lpBstr, SysStringByteLen(*lpBstr));
963 hRet = E_OUTOFMEMORY;
970 if (psa->fFeatures & (FADF_UNKNOWN|FADF_DISPATCH))
972 LPUNKNOWN *lpUnknown = (LPUNKNOWN *)lpvSrc;
975 IUnknown_AddRef(*lpUnknown);
977 /* Copy the data over */
978 memcpy(pvData, lpvSrc, psa->cbElements);
981 SafeArrayUnlock(psa);
986 /*************************************************************************
987 * SafeArrayGetUBound (OLEAUT32.19)
989 * Get the upper bound for a given SafeArray dimension
992 * psa [I] Array to get dimension upper bound from
993 * nDim [I] The dimension number to get the upper bound of
994 * plUbound [O] Destination for the upper bound
997 * Success: S_OK. plUbound contains the dimensions upper bound.
998 * Failure: An HRESULT error code indicating the error.
1003 HRESULT WINAPI SafeArrayGetUBound(SAFEARRAY *psa, UINT nDim, LONG *plUbound)
1005 TRACE("(%p,%d,%p)\n", psa, nDim, plUbound);
1007 if (!psa || !plUbound)
1008 return E_INVALIDARG;
1010 if(!nDim || nDim > psa->cDims)
1011 return DISP_E_BADINDEX;
1013 *plUbound = psa->rgsabound[psa->cDims - nDim].lLbound +
1014 psa->rgsabound[psa->cDims - nDim].cElements - 1;
1019 /*************************************************************************
1020 * SafeArrayGetLBound (OLEAUT32.20)
1022 * Get the lower bound for a given SafeArray dimension
1025 * psa [I] Array to get dimension lower bound from
1026 * nDim [I] The dimension number to get the lowe bound of
1027 * plLbound [O] Destination for the lower bound
1030 * Success: S_OK. plUbound contains the dimensions lower bound.
1031 * Failure: An HRESULT error code indicating the error.
1036 HRESULT WINAPI SafeArrayGetLBound(SAFEARRAY *psa, UINT nDim, LONG *plLbound)
1038 TRACE("(%p,%d,%p)\n", psa, nDim, plLbound);
1040 if (!psa || !plLbound)
1041 return E_INVALIDARG;
1043 if(!nDim || nDim > psa->cDims)
1044 return DISP_E_BADINDEX;
1046 *plLbound = psa->rgsabound[psa->cDims - nDim].lLbound;
1050 /*************************************************************************
1051 * SafeArrayGetDim (OLEAUT32.17)
1053 * Get the number of dimensions in a SafeArray.
1056 * psa [I] Array to get the dimensions of
1059 * The number of array dimensions in psa, or 0 if psa is NULL.
1064 UINT WINAPI SafeArrayGetDim(SAFEARRAY *psa)
1066 TRACE("(%p) returning %ld\n", psa, psa ? psa->cDims : 0ul);
1067 return psa ? psa->cDims : 0;
1070 /*************************************************************************
1071 * SafeArrayGetElemsize (OLEAUT32.18)
1073 * Get the size of an element in a SafeArray.
1076 * psa [I] Array to get the element size from
1079 * The size of a single element in psa, or 0 if psa is NULL.
1084 UINT WINAPI SafeArrayGetElemsize(SAFEARRAY *psa)
1086 TRACE("(%p) returning %ld\n", psa, psa ? psa->cbElements : 0ul);
1087 return psa ? psa->cbElements : 0;
1090 /*************************************************************************
1091 * SafeArrayAccessData (OLEAUT32.23)
1093 * Lock a SafeArray and return a pointer to its data.
1096 * psa [I] Array to get the data pointer from
1097 * ppvData [O] Destination for the arrays data pointer
1100 * Success: S_OK. ppvData contains the arrays data pointer, and the array
1102 * Failure: An HRESULT error code indicating the error.
1107 HRESULT WINAPI SafeArrayAccessData(SAFEARRAY *psa, void **ppvData)
1109 TRACE("(%p,%p)\n", psa, ppvData);
1111 if(!psa || !ppvData)
1112 return E_INVALIDARG;
1114 if (SUCCEEDED(SafeArrayLock(psa)))
1116 *ppvData = psa->pvData;
1120 return E_UNEXPECTED;
1124 /*************************************************************************
1125 * SafeArrayUnaccessData (OLEAUT32.24)
1127 * Unlock a SafeArray after accessing its data.
1130 * psa [I] Array to unlock
1133 * Success: S_OK. The array is unlocked.
1134 * Failure: An HRESULT error code indicating the error.
1139 HRESULT WINAPI SafeArrayUnaccessData(SAFEARRAY *psa)
1141 TRACE("(%p)\n", psa);
1142 return SafeArrayUnlock(psa);
1145 /************************************************************************
1146 * SafeArrayPtrOfIndex (OLEAUT32.148)
1148 * Get the address of an item in a SafeArray.
1151 * psa [I] Array to get the items address from
1152 * rgIndices [I] Index of the item in the array
1153 * ppvData [O] Destination for item address
1156 * Success: S_OK. ppvData contains a pointer to the item.
1157 * Failure: An HRESULT error code indicating the error.
1160 * This function does not lock the array.
1165 HRESULT WINAPI SafeArrayPtrOfIndex(SAFEARRAY *psa, LONG *rgIndices, void **ppvData)
1168 ULONG cell = 0, dimensionSize = 1;
1169 SAFEARRAYBOUND* psab;
1172 TRACE("(%p,%p,%p)\n", psa, rgIndices, ppvData);
1174 /* The general formula for locating the cell number of an entry in an n
1175 * dimensional array (where cn = coordinate in dimension dn) is:
1177 * c1 + c2 * sizeof(d1) + c3 * sizeof(d2) ... + cn * sizeof(c(n-1))
1179 * We calculate the size of the last dimension at each step through the
1180 * dimensions to avoid recursing to calculate the last dimensions size.
1182 if (!psa || !rgIndices || !ppvData)
1183 return E_INVALIDARG;
1185 psab = psa->rgsabound + psa->cDims - 1;
1188 if (c1 < psab->lLbound || c1 >= psab->lLbound + (LONG)psab->cElements)
1189 return DISP_E_BADINDEX; /* Initial index out of bounds */
1191 for (dim = 1; dim < psa->cDims; dim++)
1193 dimensionSize *= psab->cElements;
1197 if (!psab->cElements ||
1198 *rgIndices < psab->lLbound ||
1199 *rgIndices >= psab->lLbound + (LONG)psab->cElements)
1200 return DISP_E_BADINDEX; /* Index out of bounds */
1202 cell += (*rgIndices - psab->lLbound) * dimensionSize;
1206 cell += (c1 - psa->rgsabound[psa->cDims - 1].lLbound);
1208 *ppvData = (char*)psa->pvData + cell * psa->cbElements;
1212 /************************************************************************
1213 * SafeArrayDestroyData (OLEAUT32.39)
1215 * Destroy the data associated with a SafeArray.
1218 * psa [I] Array to delete the data from
1221 * Success: S_OK. All items and the item data are freed.
1222 * Failure: An HRESULT error code indicating the error.
1227 HRESULT WINAPI SafeArrayDestroyData(SAFEARRAY *psa)
1229 TRACE("(%p)\n", psa);
1232 return E_INVALIDARG;
1235 return DISP_E_ARRAYISLOCKED; /* Can't delete a locked array */
1237 /* Delete the actual item data */
1238 if (FAILED(SAFEARRAY_DestroyData(psa, 0)))
1239 return E_UNEXPECTED;
1243 if (psa->fFeatures & FADF_STATIC)
1245 ZeroMemory(psa->pvData, SAFEARRAY_GetCellCount(psa) * psa->cbElements);
1248 /* If this is not a vector, free the data memory block */
1249 if (!(psa->fFeatures & FADF_CREATEVECTOR))
1251 if (!SAFEARRAY_Free(psa->pvData))
1252 return E_UNEXPECTED;
1256 psa->fFeatures |= FADF_DATADELETED; /* Mark the data deleted */
1262 /************************************************************************
1263 * SafeArrayCopyData (OLEAUT32.412)
1265 * Copy all data from one SafeArray to another.
1268 * psaSource [I] Source for copy
1269 * psaTarget [O] Destination for copy
1272 * Success: S_OK. psaTarget contains a copy of psaSource.
1273 * Failure: An HRESULT error code indicating the error.
1276 * The two arrays must have the same number of dimensions and elements.
1281 HRESULT WINAPI SafeArrayCopyData(SAFEARRAY *psaSource, SAFEARRAY *psaTarget)
1285 TRACE("(%p,%p)\n", psaSource, psaTarget);
1287 if (!psaSource || !psaTarget ||
1288 psaSource->cDims != psaTarget->cDims ||
1289 psaSource->cbElements != psaTarget->cbElements)
1290 return E_INVALIDARG;
1292 /* Each dimension must be the same size */
1293 for (dim = psaSource->cDims - 1; dim >= 0 ; dim--)
1294 if (psaSource->rgsabound[dim].cElements !=
1295 psaTarget->rgsabound[dim].cElements)
1296 return E_INVALIDARG;
1298 if (SUCCEEDED(SAFEARRAY_DestroyData(psaTarget, 0)) &&
1299 SUCCEEDED(SAFEARRAY_CopyData(psaSource, psaTarget)))
1301 return E_UNEXPECTED;
1304 /************************************************************************
1305 * SafeArrayDestroy (OLEAUT32.16)
1307 * Destroy a SafeArray.
1310 * psa [I] Array to destroy
1313 * Success: S_OK. All resources used by the array are freed.
1314 * Failure: An HRESULT error code indicating the error.
1319 HRESULT WINAPI SafeArrayDestroy(SAFEARRAY *psa)
1321 TRACE("(%p)\n", psa);
1327 return DISP_E_ARRAYISLOCKED;
1329 /* Native doesn't check to see if the free succeeds */
1330 SafeArrayDestroyData(psa);
1331 SafeArrayDestroyDescriptor(psa);
1335 /************************************************************************
1336 * SafeArrayCopy (OLEAUT32.27)
1338 * Make a duplicate of a SafeArray.
1341 * psa [I] Source for copy
1342 * ppsaOut [O] Destination for new copy
1345 * Success: S_OK. ppsaOut contains a copy of the array.
1346 * Failure: An HRESULT error code indicating the error.
1351 HRESULT WINAPI SafeArrayCopy(SAFEARRAY *psa, SAFEARRAY **ppsaOut)
1355 TRACE("(%p,%p)\n", psa, ppsaOut);
1358 return E_INVALIDARG;
1363 return S_OK; /* Handles copying of NULL arrays */
1365 if (!psa->cbElements)
1367 ERR("not copying an array of 0 elements\n");
1368 return E_INVALIDARG;
1371 if (psa->fFeatures & (FADF_RECORD|FADF_HAVEIID|FADF_HAVEVARTYPE))
1374 if (FAILED(SafeArrayGetVartype(psa, &vt)))
1375 hRet = E_UNEXPECTED;
1377 hRet = SafeArrayAllocDescriptorEx(vt, psa->cDims, ppsaOut);
1381 hRet = SafeArrayAllocDescriptor(psa->cDims, ppsaOut);
1382 if (SUCCEEDED(hRet))
1384 (*ppsaOut)->fFeatures = psa->fFeatures & ~FADF_CREATEVECTOR;
1385 (*ppsaOut)->cbElements = psa->cbElements;
1389 if (SUCCEEDED(hRet))
1391 /* Copy dimension bounds */
1392 memcpy((*ppsaOut)->rgsabound, psa->rgsabound, psa->cDims * sizeof(SAFEARRAYBOUND));
1394 (*ppsaOut)->pvData = SAFEARRAY_Malloc(SAFEARRAY_GetCellCount(psa) * psa->cbElements);
1396 if ((*ppsaOut)->pvData)
1398 hRet = SAFEARRAY_CopyData(psa, *ppsaOut);
1400 if (SUCCEEDED(hRet))
1403 SAFEARRAY_Free((*ppsaOut)->pvData);
1405 SafeArrayDestroyDescriptor(*ppsaOut);
1411 /************************************************************************
1412 * SafeArrayRedim (OLEAUT32.40)
1414 * Changes the characteristics of the last dimension of a SafeArray
1417 * psa [I] Array to change
1418 * psabound [I] New bound details for the last dimension
1421 * Success: S_OK. psa is updated to reflect the new bounds.
1422 * Failure: An HRESULT error code indicating the error.
1427 HRESULT WINAPI SafeArrayRedim(SAFEARRAY *psa, SAFEARRAYBOUND *psabound)
1429 SAFEARRAYBOUND *oldBounds;
1431 TRACE("(%p,%p)\n", psa, psabound);
1433 if (!psa || psa->fFeatures & FADF_FIXEDSIZE || !psabound)
1434 return E_INVALIDARG;
1436 if (psa->cLocks > 0)
1437 return DISP_E_ARRAYISLOCKED;
1439 if (FAILED(SafeArrayLock(psa)))
1440 return E_UNEXPECTED;
1442 oldBounds = psa->rgsabound;
1443 oldBounds->lLbound = psabound->lLbound;
1445 if (psabound->cElements != oldBounds->cElements)
1447 if (psabound->cElements < oldBounds->cElements)
1449 /* Shorten the final dimension. */
1450 ULONG ulStartCell = psabound->cElements *
1451 (SAFEARRAY_GetCellCount(psa) / oldBounds->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;