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BizHawk
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Implement a rewind frequency option, for now it is hardcoded to 2 for SNES and similarly sized states, and 60 for n64/saturn sizes, else it is 1. TODO: some time of UI for the user to set this

This commit is contained in:
adelikat 2013-07-20 14:38:09 +00:00
parent 58359d5ac9
commit 55471ce891
2 changed files with 25 additions and 11 deletions
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4
BizHawk.MultiClient/Input/ControllerBinding.cs
View File

@ -24,8 +24,8 @@ namespace BizHawk.MultiClient
FloatButtons[type.FloatControls[i]] = type.FloatRanges[i].Mid;
FloatRanges[type.FloatControls[i]] = type.FloatRanges[i];
}
FloatBinds.Add("J5 X", "P1 X Axis");
FloatBinds.Add("J5 Y", "P1 Y Axis");
FloatBinds.Add("J1 X", "P1 X Axis");
FloatBinds.Add("J1 Y", "P1 Y Axis");
}
public ControllerDefinition Type { get { return type; } }

32
BizHawk.MultiClient/Rewind.cs
View File

@ -7,6 +7,8 @@ namespace BizHawk.MultiClient
private readonly MruStack<MemoryStream> RewindBuf = new MruStack<MemoryStream>(15000);
private byte[] LastState;
private bool RewindImpossible;
private int RewindFrequency = 1;
void CaptureRewindState()
{
@ -17,23 +19,35 @@ namespace BizHawk.MultiClient
{
// This is the first frame. Capture the state, and put it in LastState for future deltas to be compared against.
LastState = Global.Emulator.SaveStateBinary();
if (LastState.Length > 0x100000)
{
RewindImpossible = true;
LastState = null;
Global.OSD.AddMessage("Rewind Disabled: State too large.");
if (Global.Emulator.SystemId == "PCE")
Global.OSD.AddMessage("See 'Arcade Card Rewind Hack' in Emulation->PC Engine options.");
//RewindImpossible = true;
//LastState = null;
//Global.OSD.AddMessage("Rewind Disabled: State too large.");
//if (Global.Emulator.SystemId == "PCE")
// Global.OSD.AddMessage("See 'Arcade Card Rewind Hack' in Emulation->PC Engine options.");
RewindFrequency = 60;
Global.OSD.AddMessage("Rewind frequency set to 60");
}
else if (LastState.Length > 32768)
{
RewindFrequency = 2;
Global.OSD.AddMessage("Rewind frequency set to 2");
}
return;
}
// Otherwise, it's not the first frame, so build a delta.
if (LastState.Length <= 0x10000)
CaptureRewindState64K();
else
CaptureRewindStateLarge();
if (Global.Emulator.Frame%RewindFrequency == 0)
{
if (LastState.Length <= 0x10000)
CaptureRewindState64K();
else
CaptureRewindStateLarge();
}
}
// Builds a delta for states that are <= 64K in size.