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oleaut32: safearray: Convert dimension index at the API boundary.

This commit is contained in:
qingdoa daoo 2006-06-04 19:43:13 +08:00 committed by Alexandre Julliard
parent 5f5969b3c5
commit 06fcfda9ff
2 changed files with 28 additions and 30 deletions
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42
dlls/oleaut32/safearray.c
View File

@ -169,25 +169,6 @@ static ULONG SAFEARRAY_GetCellCount(const SAFEARRAY *psa)
return ulNumCells;
}
/* Get the 0 based index of an index into a dimension */
static inline ULONG SAFEARRAY_GetDimensionIndex(SAFEARRAYBOUND *psab, ULONG ulIndex)
{
return ulIndex - psab->lLbound;
}
/* Get the size of a dimension in cells */
static inline ULONG SAFEARRAY_GetDimensionCells(SAFEARRAY *psa, ULONG ulDim)
{
ULONG size = psa->rgsabound[0].cElements;
while (ulDim)
{
size *= psa->rgsabound[ulDim].cElements;
ulDim--;
}
return size;
}
/* Allocate a descriptor for an array */
static HRESULT SAFEARRAY_AllocDescriptor(ULONG ulSize, SAFEARRAY **ppsaOut)
{
@ -226,6 +207,7 @@ static void SAFEARRAY_SetFeatures(VARTYPE vt, SAFEARRAY *psa)
static SAFEARRAY* SAFEARRAY_Create(VARTYPE vt, UINT cDims, SAFEARRAYBOUND *rgsabound, ULONG ulSize)
{
SAFEARRAY *psa = NULL;
int i;
if (!rgsabound)
return NULL;
@ -240,7 +222,8 @@ static SAFEARRAY* SAFEARRAY_Create(VARTYPE vt, UINT cDims, SAFEARRAYBOUND *rgsab
case VT_VARIANT: psa->fFeatures |= FADF_VARIANT; break;
}
memcpy(psa->rgsabound, rgsabound, cDims * sizeof(SAFEARRAYBOUND));
for (i = 0; i < cDims; i++)
memcpy(psa->rgsabound + i, rgsabound + cDims - 1 - i, sizeof(SAFEARRAYBOUND));
if (ulSize)
psa->cbElements = ulSize;
@ -1027,8 +1010,8 @@ HRESULT WINAPI SafeArrayGetUBound(SAFEARRAY *psa, UINT nDim, LONG *plUbound)
if(!nDim || nDim > psa->cDims)
return DISP_E_BADINDEX;
*plUbound = psa->rgsabound[nDim - 1].lLbound +
psa->rgsabound[nDim - 1].cElements - 1;
*plUbound = psa->rgsabound[psa->cDims - nDim].lLbound +
psa->rgsabound[psa->cDims - nDim].cElements - 1;
return S_OK;
}
@ -1060,7 +1043,7 @@ HRESULT WINAPI SafeArrayGetLBound(SAFEARRAY *psa, UINT nDim, LONG *plLbound)
if(!nDim || nDim > psa->cDims)
return DISP_E_BADINDEX;
*plLbound = psa->rgsabound[nDim - 1].lLbound;
*plLbound = psa->rgsabound[psa->cDims - nDim].lLbound;
return S_OK;
}
@ -1199,7 +1182,7 @@ HRESULT WINAPI SafeArrayPtrOfIndex(SAFEARRAY *psa, LONG *rgIndices, void **ppvDa
if (!psa || !rgIndices || !ppvData)
return E_INVALIDARG;
psab = psa->rgsabound;
psab = psa->rgsabound + psa->cDims - 1;
c1 = *rgIndices++;
if (c1 < psab->lLbound || c1 >= psab->lLbound + (LONG)psab->cElements)
@ -1209,7 +1192,7 @@ HRESULT WINAPI SafeArrayPtrOfIndex(SAFEARRAY *psa, LONG *rgIndices, void **ppvDa
{
dimensionSize *= psab->cElements;
psab++;
psab--;
if (!psab->cElements ||
*rgIndices < psab->lLbound ||
@ -1220,7 +1203,7 @@ HRESULT WINAPI SafeArrayPtrOfIndex(SAFEARRAY *psa, LONG *rgIndices, void **ppvDa
rgIndices++;
}
cell += (c1 - psa->rgsabound[0].lLbound);
cell += (c1 - psa->rgsabound[psa->cDims - 1].lLbound);
*ppvData = (char*)psa->pvData + cell * psa->cbElements;
return S_OK;
@ -1452,7 +1435,7 @@ HRESULT WINAPI SafeArrayRedim(SAFEARRAY *psa, SAFEARRAYBOUND *psabound)
if (FAILED(SafeArrayLock(psa)))
return E_UNEXPECTED;
oldBounds = &psa->rgsabound[psa->cDims - 1];
oldBounds = psa->rgsabound;
oldBounds->lLbound = psabound->lLbound;
if (psabound->cElements != oldBounds->cElements)
@ -1460,9 +1443,8 @@ HRESULT WINAPI SafeArrayRedim(SAFEARRAY *psa, SAFEARRAYBOUND *psabound)
if (psabound->cElements < oldBounds->cElements)
{
/* Shorten the final dimension. */
ULONG ulStartCell = psa->cDims == 1 ? 0 : SAFEARRAY_GetDimensionCells(psa, psa->cDims - 1);
ulStartCell += psabound->cElements;
ULONG ulStartCell = psabound->cElements *
(SAFEARRAY_GetCellCount(psa) / oldBounds->cElements);
SAFEARRAY_DestroyData(psa, ulStartCell);
}
else

16
dlls/oleaut32/tests/safearray.c
View File

@ -321,6 +321,22 @@ static void test_safearray(void)
hres = SafeArrayDestroy(a);
ok(hres == S_OK,"SAD of 0 dim array faild with hres %lx\n", hres);
SafeArrayAllocDescriptor(2, &a);
a->rgsabound[0].cElements = 2;
a->rgsabound[0].lLbound = 1;
a->rgsabound[1].cElements = 4;
a->rgsabound[1].lLbound = 1;
a->cbElements = 2;
SafeArrayAllocData(a);
indices[0] = 4;
indices[1] = 2;
hres = SafeArrayPtrOfIndex(a, indices, (void **)&ptr1);
ok(hres == S_OK, "SAPOI failed with hres %lx\n", hres);
SafeArrayAccessData(a, (void **)&ptr2);
ok(ptr1 - ptr2 == 14, "SAPOI got wrong ptr\n");
SafeArrayUnaccessData(a);
bounds[0].cElements = 0; bounds[0].lLbound = 1;
bounds[1].cElements = 2; bounds[1].lLbound = 23;
a = SafeArrayCreate(VT_I4,2,bounds);