void CBaseControl::InsertChildAtIndex(const CBaseControlPtr & control, unsigned index)
{
if (!control)
{
throw std::invalid_argument("Invalid control");
}
if (control.get() == this)
{
throw std::invalid_argument("Can not insert itself as a child");
}
if (IsItOneOfMyParents(control))
{
throw std::invalid_argument("Can not insert any control parent as a child");
}
const bool itIsMyChild = (control->GetParent().get() == this);
if (itIsMyChild)
{
ChangeChildIndex(control, index);
}
else
{
AdoptChild(control, index);
}
}
/*!
******************************************************************************
@Function PVRSRVAllocSubHandle
@Description Allocate a subhandle
@Input phHandle - location for new subhandle
pvData - pointer to resource to be associated with the subhandle
eType - the type of resource
hParent - parent handle
@Output phHandle - points to new subhandle
@Return Error code or PVRSRV_OK
******************************************************************************/
PVRSRV_ERROR PVRSRVAllocSubHandle(PVRSRV_HANDLE_BASE *psBase,
IMG_HANDLE *phHandle,
IMG_VOID *pvData,
PVRSRV_HANDLE_TYPE eType,
PVRSRV_HANDLE_ALLOC_FLAG eFlag,
IMG_HANDLE hParent)
{
HANDLE_DATA *psPHandleData = IMG_NULL;
HANDLE_DATA *psCHandleData = IMG_NULL;
IMG_HANDLE hParentKey;
IMG_HANDLE hHandle;
PVRSRV_ERROR eError;
*phHandle = IMG_NULL;
/* PVRSRV_HANDLE_TYPE_NONE is reserved for internal use */
PVR_ASSERT(eType != PVRSRV_HANDLE_TYPE_NONE);
PVR_ASSERT(gpsHandleFuncs);
if (psBase == IMG_NULL)
{
PVR_DPF((PVR_DBG_ERROR, "PVRSRVAllocSubHandle: Missing handle base"));
eError = PVRSRV_ERROR_INVALID_PARAMS;
goto err;
}
hParentKey = TEST_FLAG(eFlag, PVRSRV_HANDLE_ALLOC_FLAG_PRIVATE) ? hParent : IMG_NULL;
/* Lookup the parent handle */
eError = GetHandleData(psBase, &psPHandleData, hParent, PVRSRV_HANDLE_TYPE_NONE);
if (eError != PVRSRV_OK)
{
PVR_DPF((PVR_DBG_ERROR, "PVRSRVAllocSubHandle: Failed to get parent handle structure"));
goto err;
}
if (!TEST_FLAG(eFlag, PVRSRV_HANDLE_ALLOC_FLAG_MULTI))
{
/* See if there is already a handle for this data pointer */
hHandle = FindHandle(psBase, pvData, eType, hParentKey);
if (hHandle != IMG_NULL)
{
eError = GetHandleData(psBase, &psCHandleData, hHandle, eType);
if (eError != PVRSRV_OK)
{
PVR_DPF((PVR_DBG_ERROR, "PVRSRVAllocSubHandle: Lookup of existing handle failed"));
goto err;
}
PVR_ASSERT(hParentKey != IMG_NULL && ParentHandle(psCHandleData) == hParent);
/*
* If the client is willing to share a handle, the
* existing handle is marked as shareable, and the
* existing handle has the same parent, return the
* existing handle.
*/
if (TEST_FLAG(psCHandleData->eFlag & eFlag, PVRSRV_HANDLE_ALLOC_FLAG_SHARED) &&
ParentHandle(psCHandleData) == hParent)
{
psCHandleData->ui32Refs++;
*phHandle = hHandle;
eError = PVRSRV_OK;
goto err;
}
eError = PVRSRV_ERROR_HANDLE_NOT_SHAREABLE;
goto err;
}
}
eError = AllocHandle(psBase, &hHandle, pvData, eType, eFlag, hParentKey);
if (eError != PVRSRV_OK)
{
goto err;
}
eError = GetHandleData(psBase, &psCHandleData, hHandle, PVRSRV_HANDLE_TYPE_NONE);
if (eError != PVRSRV_OK)
{
PVR_DPF((PVR_DBG_ERROR, "PVRSRVAllocSubHandle: Failed to get parent handle structure"));
/* If we were able to allocate the handle then there should be no reason why we
can't also get it's handle structure. Otherwise something has gone badly wrong. */
PVR_ASSERT(eError == PVRSRV_OK);
goto err;
}
/*
* Get the parent handle structure again, in case the handle
* structure has moved (depending on the implementation
* of AllocHandle).
*/
eError = GetHandleData(psBase, &psPHandleData, hParent, PVRSRV_HANDLE_TYPE_NONE);
if (eError != PVRSRV_OK)
{
PVR_DPF((PVR_DBG_ERROR, "PVRSRVAllocSubHandle: Failed to get parent handle structure"));
FreeHandle(psBase, hHandle, eType, IMG_NULL);
goto err;
}
eError = AdoptChild(psBase, psPHandleData, psCHandleData);
if (eError != PVRSRV_OK)
{
PVR_DPF((PVR_DBG_ERROR, "PVRSRVAllocSubHandle: Parent handle failed to adopt subhandle"));
FreeHandle(psBase, hHandle, eType, IMG_NULL);
goto err;
}
*phHandle = hHandle;
eError = PVRSRV_OK;
err:
return eError;
}
