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snes9x: add ISaveRammable and fix virtualsize

This commit is contained in:
nattthebear 2017-05-28 12:54:22 -04:00
parent 763ee5c424
commit 6c2d4ff044
1 changed files with 64 additions and 4 deletions
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68
BizHawk.Emulation.Cores/Consoles/Nintendo/SNES9X/Snes9x.cs
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@ -15,7 +15,8 @@ namespace BizHawk.Emulation.Cores.Nintendo.SNES9X
[CoreAttributes("Snes9x", "FIXME", true, false, "5e0319ab3ef9611250efb18255186d0dc0d7e125", "https://github.com/snes9xgit/snes9x", false)]
[ServiceNotApplicable(typeof(IDriveLight))]
public class Snes9x : IEmulator, IVideoProvider, ISoundProvider, IStatable,
ISettable<Snes9x.Settings, Snes9x.SyncSettings>
ISettable<Snes9x.Settings, Snes9x.SyncSettings>,
ISaveRam
{
private LibSnes9x _core;
private PeRunner _exe;
@ -71,6 +72,7 @@ namespace BizHawk.Emulation.Cores.Nintendo.SNES9X
InitControllers();
PutSettings(settings);
InitMemoryDomains();
InitSaveram();
}
catch
{
@ -334,6 +336,9 @@ namespace BizHawk.Emulation.Cores.Nintendo.SNES9X
#region IVideoProvider
private static readonly int[] VirtualWidths = new[] { 293, 587, 587, 587 }; // 256 512 256 512
private static readonly int[] VirtualHeights = new[] { 224, 448, 448, 448 }; // 224 224 448 448
private unsafe void Blit(LibSnes9x.frame_info frame)
{
BufferWidth = frame.vwidth;
@ -360,13 +365,20 @@ namespace BizHawk.Emulation.Cores.Nintendo.SNES9X
src += vinc;
}
}
VirtualHeight = BufferHeight;
VirtualWidth = BufferWidth;
if (VirtualHeight * 2 < VirtualWidth)
VirtualHeight *= 2;
if (VirtualHeight > 240)
VirtualWidth = 512;
VirtualWidth = (int)Math.Round(VirtualWidth * 1.146);
}
private int[] _vbuff = new int[512 * 480];
public int[] GetVideoBuffer() { return _vbuff; }
public int VirtualWidth
{ get { return (int)(BufferWidth * 1.146); ; } }
public int VirtualHeight { get { return BufferHeight; } }
public int VirtualWidth { get; private set; } = 293;
public int VirtualHeight { get; private set; } = 224;
public int BufferWidth { get; private set; } = 256;
public int BufferHeight { get; private set; } = 224;
public int BackgroundColor { get { return unchecked((int)0xff000000); } }
@ -643,5 +655,53 @@ namespace BizHawk.Emulation.Cores.Nintendo.SNES9X
}
#endregion
#region ISaveRam
private void InitSaveram()
{
for (int i = 0; i < 2; i++) // SRAM A, SRAM B, RTC
{
var native = new LibSnes9x.memory_area();
_core.biz_get_memory_area(i, native);
if (native.ptr != IntPtr.Zero && native.size > 0)
_saveramMemoryAreas.Add(native);
}
_saveramSize = _saveramMemoryAreas.Sum(a => a.size);
}
private readonly List<LibSnes9x.memory_area> _saveramMemoryAreas = new List<LibSnes9x.memory_area>();
private int _saveramSize;
public bool SaveRamModified => _saveramSize > 0;
public byte[] CloneSaveRam()
{
var ret = new byte[_saveramSize];
var offset = 0;
foreach (var area in _saveramMemoryAreas)
{
Marshal.Copy(area.ptr, ret, offset, area.size);
offset += area.size;
}
return ret;
}
public void StoreSaveRam(byte[] data)
{
if (data.Length != _saveramSize)
throw new InvalidOperationException("Saveram size mismatch");
var offset = 0;
foreach (var area in _saveramMemoryAreas)
{
Marshal.Copy(data, offset, area.ptr, area.size);
offset += area.size;
}
}
#endregion
}
}