static GLint
TransferTexturePitch( GLint dwPitch )
{
GLint dwRet, i;
i = BitScanForward( (GLshort)dwPitch );
dwRet = dwPitch >> i;
dwRet |= i << 9;
return dwRet;
}
BOOLEAN DecodeNextBit(PUCHAR pBitmap, PUCHAR pValue)
{
ULONG Index;
BOOLEAN bResult = BitScanForward(&Index, *pBitmap);
if (bResult)
{
*pValue = (unsigned char)Index;
*pBitmap &= ~(1 << Index);
}
return bResult;
}
ULONG ParaNdis_GetIndexFromAffinity(KAFFINITY affinity)
{
DWORD index = 0;
BOOLEAN result;
#ifdef _WIN64
result = BitScanForward64(&index, affinity);
#else
result = BitScanForward(&index, affinity);
#endif
if (result && ((KAFFINITY)1 << index) == affinity)
{
return index;
}
return INVALID_PROCESSOR_INDEX;
}
HRESULT SoraAllocateVStream(PSORA_RADIO radio, PULONG Mask)
{
KIRQL OldIrql;
HRESULT hr = E_FAIL;
KeAcquireSpinLock(&radio->__rx_queue.VStreamFreeBitmapLock, &OldIrql);
if (radio->__rx_queue.VStreamFreeBitmap != 0)
{
ULONG FreeBitIndex;
hr = S_OK;
BitScanForward(&FreeBitIndex, radio->__rx_queue.VStreamFreeBitmap);
*Mask = 0x1 << FreeBitIndex;
radio->__rx_queue.VStreamFreeBitmap &= ~(*Mask);
}
KeReleaseSpinLock(&radio->__rx_queue.VStreamFreeBitmapLock, OldIrql);
return hr;
}
// param: PWCHAR, new volume's disk letter will be stored there.
static DWORD WINAPI DevNotifyThread(void *param)
{
HWND hWnd;
DWORD diskIndex = 0;
g_NewVolumeBitmask = 0;
if (!InitWindowClass())
return 1;
hWnd = CreateWindowEx(
WS_EX_CLIENTEDGE | WS_EX_APPWINDOW,
WND_CLASS_NAME,
L"QDevNotify",
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, 0,
640, 480,
NULL, NULL,
GetModuleHandle(NULL),
NULL);
if (hWnd == NULL)
{
perror("CreateWindowEx: main appwindow hWnd");
return 2;
}
MessagePump();
if (g_NewVolumeBitmask == 0) // failed?
return 3;
// Translate bitmask into disk letter.
BitScanForward(&diskIndex, g_NewVolumeBitmask);
*(WCHAR *) param = L'A' + (WCHAR) diskIndex;
return 0;
}