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BizHawk
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Refactor movie loadstate code to get the winform specific code out of Movie.cs and movie it to Mainform, this involves passing back error information rather than calling messageboxes itself. Movie.cs loadstate is slightly less crappy now, and the mainform HandleMovieLoadstate is unbelievably crappy, must refactor at some point. I tested and don't think I broke anything, but given the complexity of the logic and number of scenario, I wouldn't be surprised.

This commit is contained in:
adelikat 2013-10-23 23:45:15 +00:00
parent c1533d3259
commit de19802d25
2 changed files with 294 additions and 96 deletions
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277
BizHawk.MultiClient/MainForm.Movie.cs
View File

@ -152,6 +152,14 @@ namespace BizHawk.MultiClient
}
}
private void ShowError(string error)
{
if (!String.IsNullOrWhiteSpace(error))
{
MessageBox.Show(error, "Loadstate Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
private bool HandleMovieLoadState(string path)
{
using (var sr = new StreamReader(path))
@ -160,8 +168,10 @@ namespace BizHawk.MultiClient
}
}
//OMG this needs to be refactored!
private bool HandleMovieLoadState(StreamReader reader)
{
string ErrorMSG = String.Empty;
//Note, some of the situations in these IF's may be identical and could be combined but I intentionally separated it out for clarity
if (!GlobalWinF.MovieSession.Movie.IsActive)
{
@ -170,29 +180,94 @@ namespace BizHawk.MultiClient
else if (GlobalWinF.MovieSession.Movie.IsRecording)
{
if (ReadOnly)
{
if (!GlobalWinF.MovieSession.Movie.CheckTimeLines(reader, false))
{
return false; //Timeline/GUID error
}
else
var result = GlobalWinF.MovieSession.Movie.CheckTimeLines(reader, OnlyGUID: false, IgnoreGuidMismatch: false, ErrorMessage: out ErrorMSG);
if (result == Movie.LoadStateResult.Pass)
{
GlobalWinF.MovieSession.Movie.WriteMovie();
GlobalWinF.MovieSession.Movie.SwitchToPlay();
SetMainformMovieInfo();
return true;
}
else
{
if (result == Movie.LoadStateResult.GuidMismatch)
{
var dresult = MessageBox.Show("The savestate GUID does not match the current movie. Proceed anyway?",
"GUID Mismatch error",
MessageBoxButtons.YesNo, MessageBoxIcon.Question);
if (dresult == DialogResult.Yes)
{
var newresult = GlobalWinF.MovieSession.Movie.CheckTimeLines(reader, OnlyGUID: false, IgnoreGuidMismatch: true, ErrorMessage: out ErrorMSG);
if (newresult == Movie.LoadStateResult.Pass)
{
GlobalWinF.MovieSession.Movie.WriteMovie();
GlobalWinF.MovieSession.Movie.SwitchToPlay();
SetMainformMovieInfo();
return true;
}
else
{
ShowError(ErrorMSG);
return false;
}
}
else
{
return false;
}
}
else
{
ShowError(ErrorMSG);
return false;
}
}
}
else
{
if (!GlobalWinF.MovieSession.Movie.CheckTimeLines(reader, true))
var result = GlobalWinF.MovieSession.Movie.CheckTimeLines(reader, OnlyGUID: true, IgnoreGuidMismatch: false, ErrorMessage: out ErrorMSG);
if (result == Movie.LoadStateResult.Pass)
{
return false; //GUID Error
reader.BaseStream.Position = 0;
reader.DiscardBufferedData();
GlobalWinF.MovieSession.Movie.LoadLogFromSavestateText(reader);
}
else
{
if (result == Movie.LoadStateResult.GuidMismatch)
{
var dresult = MessageBox.Show("The savestate GUID does not match the current movie. Proceed anyway?",
"GUID Mismatch error",
MessageBoxButtons.YesNo, MessageBoxIcon.Question);
if (dresult == DialogResult.Yes)
{
var newresult = GlobalWinF.MovieSession.Movie.CheckTimeLines(reader, OnlyGUID: false, IgnoreGuidMismatch: true, ErrorMessage: out ErrorMSG);
if (newresult == Movie.LoadStateResult.Pass)
{
reader.BaseStream.Position = 0;
reader.DiscardBufferedData();
GlobalWinF.MovieSession.Movie.LoadLogFromSavestateText(reader);
return true;
}
else
{
ShowError(ErrorMSG);
return false;
}
}
else
{
return false;
}
}
else
{
ShowError(ErrorMSG);
return false;
}
}
reader.BaseStream.Position = 0;
reader.DiscardBufferedData();
GlobalWinF.MovieSession.Movie.LoadLogFromSavestateText(reader);
}
}
@ -200,63 +275,193 @@ namespace BizHawk.MultiClient
{
if (ReadOnly)
{
if (!GlobalWinF.MovieSession.Movie.CheckTimeLines(reader, false))
var result = GlobalWinF.MovieSession.Movie.CheckTimeLines(reader, OnlyGUID: !ReadOnly, IgnoreGuidMismatch: false, ErrorMessage: out ErrorMSG);
if (result == Movie.LoadStateResult.Pass)
{
return false; //Timeline/GUID error
//Frame loop automatically handles the rewinding effect based on Global.Emulator.Frame so nothing else is needed here
return true;
}
else
{
if (result == Movie.LoadStateResult.GuidMismatch)
{
var dresult = MessageBox.Show("The savestate GUID does not match the current movie. Proceed anyway?",
"GUID Mismatch error",
MessageBoxButtons.YesNo, MessageBoxIcon.Question);
if (dresult == DialogResult.Yes)
{
var newresult = GlobalWinF.MovieSession.Movie.CheckTimeLines(reader, OnlyGUID: !ReadOnly, IgnoreGuidMismatch: true, ErrorMessage: out ErrorMSG);
if (newresult == Movie.LoadStateResult.Pass)
{
return true;
}
else
{
ShowError(ErrorMSG);
return false;
}
}
else
{
return false;
}
}
else
{
ShowError(ErrorMSG);
return false;
}
}
//Frame loop automatically handles the rewinding effect based on Global.Emulator.Frame so nothing else is needed here
}
else
{
if (!GlobalWinF.MovieSession.Movie.CheckTimeLines(reader, true))
var result = GlobalWinF.MovieSession.Movie.CheckTimeLines(reader, OnlyGUID: !ReadOnly, IgnoreGuidMismatch: false, ErrorMessage: out ErrorMSG);
if (result == Movie.LoadStateResult.Pass)
{
return false; //GUID Error
GlobalWinF.MovieSession.Movie.SwitchToRecord();
SetMainformMovieInfo();
reader.BaseStream.Position = 0;
reader.DiscardBufferedData();
GlobalWinF.MovieSession.Movie.LoadLogFromSavestateText(reader);
return true;
}
else
{
if (result == Movie.LoadStateResult.GuidMismatch)
{
var dresult = MessageBox.Show("The savestate GUID does not match the current movie. Proceed anyway?",
"GUID Mismatch error",
MessageBoxButtons.YesNo, MessageBoxIcon.Question);
if (dresult == DialogResult.Yes)
{
var newresult = GlobalWinF.MovieSession.Movie.CheckTimeLines(reader, OnlyGUID: !ReadOnly, IgnoreGuidMismatch: true, ErrorMessage: out ErrorMSG);
if (newresult == Movie.LoadStateResult.Pass)
{
GlobalWinF.MovieSession.Movie.SwitchToRecord();
SetMainformMovieInfo();
reader.BaseStream.Position = 0;
reader.DiscardBufferedData();
GlobalWinF.MovieSession.Movie.LoadLogFromSavestateText(reader);
return true;
}
else
{
ShowError(ErrorMSG);
return false;
}
}
else
{
return false;
}
}
else
{
ShowError(ErrorMSG);
return false;
}
}
GlobalWinF.MovieSession.Movie.SwitchToRecord();
SetMainformMovieInfo();
reader.BaseStream.Position = 0;
reader.DiscardBufferedData();
GlobalWinF.MovieSession.Movie.LoadLogFromSavestateText(reader);
}
}
else if (GlobalWinF.MovieSession.Movie.IsFinished)
{
if (ReadOnly)
{
var result = GlobalWinF.MovieSession.Movie.CheckTimeLines(reader, OnlyGUID: !ReadOnly, IgnoreGuidMismatch: false, ErrorMessage: out ErrorMSG);
if (result != Movie.LoadStateResult.Pass)
{
if (!GlobalWinF.MovieSession.Movie.CheckTimeLines(reader, false))
if (result == Movie.LoadStateResult.GuidMismatch)
{
return false; //Timeline/GUID error
}
else if (GlobalWinF.MovieSession.Movie.IsFinished) //TimeLine check can change a movie to finished, hence the check here (not a good design)
{
GlobalWinF.MovieSession.LatchInputFromPlayer(GlobalWinF.MovieInputSourceAdapter);
var dresult = MessageBox.Show("The savestate GUID does not match the current movie. Proceed anyway?",
"GUID Mismatch error",
MessageBoxButtons.YesNo, MessageBoxIcon.Question);
if (dresult == DialogResult.Yes)
{
var newresult = GlobalWinF.MovieSession.Movie.CheckTimeLines(reader, OnlyGUID: !ReadOnly, IgnoreGuidMismatch: true, ErrorMessage: out ErrorMSG);
if (newresult == Movie.LoadStateResult.Pass)
{
GlobalWinF.MovieSession.Movie.SwitchToPlay();
SetMainformMovieInfo();
return true;
}
else
{
ShowError(ErrorMSG);
return false;
}
}
else
{
return false;
}
}
else
{
GlobalWinF.MovieSession.Movie.SwitchToPlay();
SetMainformMovieInfo();
ShowError(ErrorMSG);
return false;
}
}
else if (GlobalWinF.MovieSession.Movie.IsFinished) //TimeLine check can change a movie to finished, hence the check here (not a good design)
{
GlobalWinF.MovieSession.LatchInputFromPlayer(GlobalWinF.MovieInputSourceAdapter);
}
else
{
GlobalWinF.MovieSession.Movie.SwitchToPlay();
SetMainformMovieInfo();
}
}
else
{
var result = GlobalWinF.MovieSession.Movie.CheckTimeLines(reader, OnlyGUID: !ReadOnly, IgnoreGuidMismatch: false, ErrorMessage: out ErrorMSG);
if (result == Movie.LoadStateResult.Pass)
{
if (!GlobalWinF.MovieSession.Movie.CheckTimeLines(reader, true))
GlobalWinF.MovieSession.Movie.StartRecording();
SetMainformMovieInfo();
reader.BaseStream.Position = 0;
reader.DiscardBufferedData();
GlobalWinF.MovieSession.Movie.LoadLogFromSavestateText(reader);
return true;
}
else
{
if (result == Movie.LoadStateResult.GuidMismatch)
{
return false; //GUID Error
var dresult = MessageBox.Show("The savestate GUID does not match the current movie. Proceed anyway?",
"GUID Mismatch error",
MessageBoxButtons.YesNo, MessageBoxIcon.Question);
if (dresult == DialogResult.Yes)
{
var newresult = GlobalWinF.MovieSession.Movie.CheckTimeLines(reader, OnlyGUID: !ReadOnly, IgnoreGuidMismatch: true, ErrorMessage: out ErrorMSG);
if (newresult == Movie.LoadStateResult.Pass)
{
GlobalWinF.MovieSession.Movie.StartRecording();
SetMainformMovieInfo();
reader.BaseStream.Position = 0;
reader.DiscardBufferedData();
GlobalWinF.MovieSession.Movie.LoadLogFromSavestateText(reader);
return true;
}
else
{
ShowError(ErrorMSG);
return false;
}
}
else
{
return false;
}
}
else
{
GlobalWinF.MovieSession.Movie.StartRecording();
SetMainformMovieInfo();
reader.BaseStream.Position = 0;
reader.DiscardBufferedData();
GlobalWinF.MovieSession.Movie.LoadLogFromSavestateText(reader);
ShowError(ErrorMSG);
return false;
}
}
}
}
return true;
}

113
BizHawk.MultiClient/movie/Movie.cs
View File

@ -1,6 +1,5 @@
using System;
using System.IO;
using System.Windows.Forms;
using System.Globalization;
using BizHawk.Client.Common;
@ -796,18 +795,20 @@ namespace BizHawk.MultiClient
return time;
}
public bool CheckTimeLines(TextReader reader, bool OnlyGUID)
public enum LoadStateResult { Pass, GuidMismatch, TimeLineError, FutureEventError, NotInRecording, EmptyLog, MissingFrameNumber }
public LoadStateResult CheckTimeLines(TextReader reader, bool OnlyGUID, bool IgnoreGuidMismatch, out string ErrorMessage)
{
//This function will compare the movie data to the savestate movie data to see if they match
MovieLog l = new MovieLog();
ErrorMessage = String.Empty;
var log = new MovieLog();
int stateFrame = 0;
while (true)
{
string line = reader.ReadLine();
if (line == null)
{
return false;
return LoadStateResult.EmptyLog;
}
else if (line.Trim() == "")
{
@ -818,22 +819,11 @@ namespace BizHawk.MultiClient
string guid = ParseHeader(line, MovieHeader.GUID);
if (Header.GetHeaderLine(MovieHeader.GUID) != guid)
{
//GUID Mismatch error
var result = MessageBox.Show(guid + " : " + Header.GetHeaderLine(MovieHeader.GUID) + "\n" +
"The savestate GUID does not match the current movie. Proceed anyway?", "GUID Mismatch error",
MessageBoxButtons.YesNo, MessageBoxIcon.Question);
if (result == DialogResult.No)
if (!IgnoreGuidMismatch)
{
//reader.Close();
return false;
return LoadStateResult.GuidMismatch;
}
}
else if (OnlyGUID)
{
//reader.Close();
return true;
}
}
else if (line.Contains("Frame 0x")) //NES stores frame count in hex, yay
{
@ -842,7 +832,11 @@ namespace BizHawk.MultiClient
{
stateFrame = int.Parse(strs[1], NumberStyles.HexNumber);
}
catch { GlobalWinF.OSD.AddMessage("Savestate Frame number failed to parse"); }
catch
{
ErrorMessage = "Savestate Frame number failed to parse";
return LoadStateResult.MissingFrameNumber;
}
}
else if (line.Contains("Frame "))
{
@ -851,69 +845,68 @@ namespace BizHawk.MultiClient
{
stateFrame = int.Parse(strs[1]);
}
catch { GlobalWinF.OSD.AddMessage("Savestate Frame number failed to parse"); }
catch
{
ErrorMessage = "Savestate Frame number failed to parse";
return LoadStateResult.MissingFrameNumber;
}
}
else if (line == "[Input]") continue;
else if (line == "[/Input]") break;
else if (line[0] == '|')
l.AppendFrame(line);
}
//reader.BaseStream.Position = 0; //Reset position because this stream may be read again by other code
if (OnlyGUID)
{
//reader.Close();
return true;
}
if (stateFrame == 0)
{
stateFrame = l.Length; //In case the frame count failed to parse, revert to using the entire state input log
}
if (Log.Length < stateFrame)
{
//Future event error
MessageBox.Show("The savestate is from frame " + l.Length.ToString() + " which is greater than the current movie length of " +
Log.Length.ToString() + ".\nCan not load this savestate.", "Future event Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
//reader.Close();
return false;
}
for (int x = 0; x < stateFrame; x++)
{
string xs = Log.GetFrame(x);
string ys = l.GetFrame(x);
if (xs != ys)
{
//TimeLine Error
MessageBox.Show("The savestate input does not match the movie input at frame " + (x + 1).ToString() + ".",
"Timeline Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
//reader.Close();
return false;
log.AppendFrame(line);
}
}
if (OnlyGUID)
{
return LoadStateResult.Pass;
}
if (stateFrame == 0)
{
stateFrame = log.Length; //In case the frame count failed to parse, revert to using the entire state input log
}
if (Log.Length < stateFrame)
{
ErrorMessage = "The savestate is from frame "
+ log.Length.ToString()
+ " which is greater than the current movie length of "
+ Log.Length.ToString();
return LoadStateResult.FutureEventError;
}
for (int i = 0; i < stateFrame; i++)
{
string xs = Log.GetFrame(i);
string ys = log.GetFrame(i); //TODO: huh??
if (xs != ys)
{
ErrorMessage = "The savestate input does not match the movie input at frame "
+ (i + 1).ToString()
+ ".";
return LoadStateResult.TimeLineError;
}
}
if (stateFrame > l.Length) //stateFrame is greater than state input log, so movie finished mode
if (stateFrame > log.Length) //stateFrame is greater than state input log, so movie finished mode
{
if (Mode == MOVIEMODE.PLAY || Mode == MOVIEMODE.FINISHED)
{
Mode = MOVIEMODE.FINISHED;
return true;
return LoadStateResult.Pass;
}
else
return false; //For now throw an error if recording, ideally what should happen is that the state gets loaded, and the movie set to movie finished, the movie at its current state is preserved and the state is loaded just fine. This should probably also only happen if checktimelines passes
{
return LoadStateResult.NotInRecording; //TODO: For now throw an error if recording, ideally what should happen is that the state gets loaded, and the movie set to movie finished, the movie at its current state is preserved and the state is loaded just fine. This should probably also only happen if checktimelines passes
}
}
else if (Mode == MOVIEMODE.FINISHED)
{
Mode = MOVIEMODE.PLAY;
}
//reader.Close();
return true;
return LoadStateResult.Pass;
}
#endregion