public ResultOrError <Stream> ReadFile(string path)
{
string newPath = ResolvePath(path);
try
{
var data = new MemoryStream();
clovershell.Execute("cat \"" + newPath + "\"", null, data, null, 1000, true);
data.Seek(0, SeekOrigin.Begin);
return(MakeResult <Stream>(data));
}
catch (Exception ex)
{
return(MakeError <Stream>(ex.Message));
}
}
// -- Emulator stop-and-go routines --
// Stop emulator process to suppress tearing of the frame buffer.
public static Int64 findEmulatorProcess(ClovershellConnection sh, string grepPattern)
{
var stdoutResult = new MemoryStream();
sh.Execute($"ps|grep {grepPattern}", null, stdoutResult, null, 1000, false);
var resultStr = Encoding.UTF8.GetString(stdoutResult.ToArray());
resultStr = System.Text.RegularExpressions.Regex.Replace(resultStr, "^\\s+", ""); // Trim whitespaces
var fields = System.Text.RegularExpressions.Regex.Split(resultStr, " +");
if (fields.Length < 1)
{
return(-1); // emulator not found
}
try
{
Int64 pid = Convert.ToInt64(fields[0], 10);
Debug.WriteLine($"Found PID: {grepPattern} -> {pid}");
return(pid);
}
catch
{
Debug.WriteLine("Bad PID : " + resultStr);
return(-1);
}
}
public Bitmap captureScreen()
{
// First, search canoe(official emulator) process
Int64 emulatorPid = findEmulatorProcess(clvshell, "[c]anoe");
if (emulatorPid < 0)
{
Debug.WriteLine("Canoe can't be found. Searching home menu...");
// Second, search home menu process
emulatorPid = findEmulatorProcess(clvshell, "[R]eedPlayer-Clover");
if (emulatorPid < 0)
{
Debug.WriteLine("Valid PIDs can't be found. Capturing without SIGSTOP.");
}
}
var screenshotImage = new Bitmap(ConsoleScreenWidth, ConsoleScreenHeight, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
var rawStream = new MemoryStream();
pauseEmulatorProcess(clvshell, emulatorPid);
clvshell.Execute("cat /dev/fb0", null, rawStream, null, 1000, true);
resumeEmulatorProcess(clvshell, emulatorPid);
var raw = rawStream.ToArray();
BitmapData data = screenshotImage.LockBits(
new Rectangle(0, 0, screenshotImage.Width, screenshotImage.Height),
ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb);
copyBitmapData(
data, raw,
screenshotImage.Width, screenshotImage.Height);
screenshotImage.UnlockBits(data);
return(screenshotImage);
}
public static void resumeEmulatorProcess(ClovershellConnection sh, Int64 pid)
{
if (pid < 0)
{
return;
} // emulator not found
sh.Execute($"kill -s SIGCONT {pid}", null, null, null, 1000, false);
}