137 lines
3.5 KiB
C#
137 lines
3.5 KiB
C#
using System;
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using System.IO;
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using BizHawk.Common.BufferExtensions;
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using BizHawk.Common.IOExtensions;
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namespace BizHawk.Client.Common
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{
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public static class SavestateManager
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{
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public static void SaveStateFile(string filename, string name)
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{
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// the old method of text savestate save is now gone.
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// a text savestate is just like a binary savestate, but with a different core lump
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using (var fs = new FileStream(filename, FileMode.Create, FileAccess.Write))
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using (var bs = new BinaryStateSaver(fs))
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{
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if (Global.Config.SaveStateType == Config.SaveStateTypeE.Text ||
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(Global.Config.SaveStateType == Config.SaveStateTypeE.Default && !Global.Emulator.BinarySaveStatesPreferred))
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{
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// text savestate format
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bs.PutLump(BinaryStateLump.CorestateText, (tw) => Global.Emulator.SaveStateText(tw));
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}
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else
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{
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// binary core lump format
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bs.PutLump(BinaryStateLump.Corestate, bw => Global.Emulator.SaveStateBinary(bw));
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}
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if (Global.Config.SaveScreenshotWithStates)
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{
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var buff = Global.Emulator.VideoProvider.GetVideoBuffer();
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// If user wants large screenshots, or screenshot is small enough
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if (Global.Config.SaveLargeScreenshotWithStates || buff.Length < Global.Config.BigScreenshotSize)
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{
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bs.PutLump(BinaryStateLump.Framebuffer, (BinaryWriter bw) => bw.Write(buff));
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}
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}
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if (Global.MovieSession.Movie.IsActive)
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{
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bs.PutLump(BinaryStateLump.Input,
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delegate(TextWriter tw)
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{
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// this never should have been a core's responsibility
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tw.WriteLine("Frame {0}", Global.Emulator.Frame);
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Global.MovieSession.HandleMovieSaveState(tw);
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});
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}
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}
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}
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public static bool LoadStateFile(string path, string name)
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{
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// try to detect binary first
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var bl = BinaryStateLoader.LoadAndDetect(path);
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if (bl != null)
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{
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try
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{
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var succeed = false;
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if (Global.MovieSession.Movie.IsActive)
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{
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bl.GetLump(BinaryStateLump.Input, true, tr => succeed = Global.MovieSession.HandleMovieLoadState_HackyStep1(tr));
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bl.GetLump(BinaryStateLump.Input, true, tr => succeed = Global.MovieSession.HandleMovieLoadState_HackyStep2(tr));
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if (!succeed)
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{
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return false;
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}
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}
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bl.GetCoreState(br => Global.Emulator.LoadStateBinary(br), tr => Global.Emulator.LoadStateText(tr));
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bl.GetLump(BinaryStateLump.Framebuffer, false,
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delegate(BinaryReader br)
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{
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var buff = Global.Emulator.VideoProvider.GetVideoBuffer();
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try
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{
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for (int i = 0; i < buff.Length; i++)
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{
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int j = br.ReadInt32();
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buff[i] = j;
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}
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}
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catch (EndOfStreamException) { }
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});
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}
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finally
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{
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bl.Dispose();
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}
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return true;
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}
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else // text mode
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{
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if (Global.MovieSession.HandleMovieLoadState(path))
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{
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using (var reader = new StreamReader(path))
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{
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Global.Emulator.LoadStateText(reader);
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while (true)
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{
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var str = reader.ReadLine();
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if (str == null)
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{
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break;
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}
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if (str.Trim() == string.Empty)
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{
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continue;
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}
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var args = str.Split(' ');
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if (args[0] == "Framebuffer")
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{
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Global.Emulator.VideoProvider.GetVideoBuffer().ReadFromHex(args[1]);
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}
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}
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}
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return true;
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}
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else
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{
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return false;
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}
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}
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}
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}
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}
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