public static bool isAVX2Available()
{
string dll = "CustomCPUID.dll";
string path = app_data_tesseract_catalog + @"\" + dll;
string md5 = "745d1bdb33e1d2c8df1a90ce1a6cebcd";
// Redownload if DLL is not present or got corrupted
using (StreamWriter sw = File.AppendText(appPath + @"\debug.log"))
{
sw.WriteLineAsync("--------------------------------------------------------------------------------------------------------------------------------------------");
ManagementObjectSearcher mos = new ManagementObjectSearcher("root\\CIMV2", "SELECT * FROM Win32_Processor");
foreach (ManagementObject mo in mos.Get())
{
sw.WriteLineAsync("[" + DateTime.UtcNow + "] CPU model name is " + mo["Name"]);
}
if (!File.Exists(path) || GetMD5hash(path) != md5)
{
sw.WriteLineAsync("[" + DateTime.UtcNow + "] AVX2 DLL is missing or corrupted, downloading");
WebClient webClient = new WebClient();
webClient.DownloadFile(tesseract_hotlink_prefix + "/" + dll, path);
}
// Import DLL that includes low level check for AVX2 support
IntPtr pDll = NativeMethods.LoadLibrary(path);
if (pDll == IntPtr.Zero)
{
sw.WriteLineAsync("[" + DateTime.UtcNow + "] AVX2 DLL Pointer is pointing to null, fallback to SSE");
return(false);
// throw new Exception("DLL pointer to CustomCPUID.dll is not identified");
}
IntPtr pAddressOfFunctionToCall = NativeMethods.GetProcAddress(pDll, "isAVX2supported");
if (pAddressOfFunctionToCall == IntPtr.Zero)
{
sw.WriteLineAsync("[" + DateTime.UtcNow + "] AVX2 DLL Function Pointer is pointing to null, fallback to SSE");
return(false);
// throw new Exception("DLL function pointer in CustomCPUID.dll is not identified");
}
isAVX2supported isAvx2Supported = (isAVX2supported)Marshal.GetDelegateForFunctionPointer(
pAddressOfFunctionToCall,
typeof(isAVX2supported));
return(isAvx2Supported());
}
}
public static bool isAVX2Available()
{
string dll = "CustomCPUID.dll";
string path = app_data_tesseract_catalog + @"\" + dll;
string md5 = "23b463f8811480e508f10ce5e984bf2f";
if (!File.Exists(path) || GetMD5hash(path) != md5)
{
WebClient webClient = new WebClient();
webClient.DownloadFile(tesseract_hotlink_prefix + "/" + dll, path);
}
IntPtr pDll = NativeMethods.LoadLibrary(path);
IntPtr pAddressOfFunctionToCall = NativeMethods.GetProcAddress(pDll, "isAVX2supported");
isAVX2supported isAvx2Supported = (isAVX2supported)Marshal.GetDelegateForFunctionPointer(
pAddressOfFunctionToCall,
typeof(isAVX2supported));
return(isAvx2Supported());
}
