public void NativeInit(LibsnesApi api)
{
for (int i = 0; i < 2; i++)
{
api.SetInputPortBeforeInit(i, _ports[i].PortType);
}
}
public SNESGraphicsDecoder(LibsnesApi api, SnesColors.ColorType pal)
{
this.api = api;
colortable = SnesColors.GetLUT(pal);
IntPtr block = (IntPtr)api.QUERY_get_memory_data(LibsnesApi.SNES_MEMORY.VRAM);
vram = (byte*)block;
vram16 = (ushort*)block;
block = (IntPtr)api.QUERY_get_memory_data(LibsnesApi.SNES_MEMORY.CGRAM);
cgram = (ushort*)block;
block = (IntPtr)api.QUERY_get_memory_data(LibsnesApi.SNES_MEMORY.OAM);
oam = (byte*)block;
}
public SNESGraphicsDecoder(LibsnesApi api, SnesColors.ColorType pal)
{
this.api = api;
colortable = SnesColors.GetLUT(pal);
IntPtr block = (IntPtr)api.QUERY_get_memory_data(LibsnesApi.SNES_MEMORY.VRAM);
vram = (byte *)block;
vram16 = (ushort *)block;
block = (IntPtr)api.QUERY_get_memory_data(LibsnesApi.SNES_MEMORY.CGRAM);
cgram = (ushort *)block;
block = (IntPtr)api.QUERY_get_memory_data(LibsnesApi.SNES_MEMORY.OAM);
oam = (byte *)block;
}
public LibsnesCore(GameInfo game, byte[] romData, byte[] xmlData, CoreComm comm, object settings, object syncSettings)
{
var ser = new BasicServiceProvider(this);
ServiceProvider = ser;
_tracer = new TraceBuffer
{
Header = "65816: PC, mnemonic, operands, registers (A, X, Y, S, D, DB, flags (NVMXDIZC), V, H)"
};
ser.Register <IDisassemblable>(new W65816_DisassemblerService());
_game = game;
CoreComm = comm;
byte[] sgbRomData = null;
if (game["SGB"])
{
if ((romData[0x143] & 0xc0) == 0xc0)
{
throw new CGBNotSupportedException();
}
sgbRomData = CoreComm.CoreFileProvider.GetFirmware("SNES", "Rom_SGB", true, "SGB Rom is required for SGB emulation.");
game.FirmwareHash = sgbRomData.HashSHA1();
}
_settings = (SnesSettings)settings ?? new SnesSettings();
_syncSettings = (SnesSyncSettings)syncSettings ?? new SnesSyncSettings();
// TODO: pass profile here
Api = new LibsnesApi(CoreComm.CoreFileProvider.DllPath())
{
ReadHook = ReadHook,
ExecHook = ExecHook,
WriteHook = WriteHook
};
ScanlineHookManager = new MyScanlineHookManager(this);
_controllerDeck = new LibsnesControllerDeck(_syncSettings);
_controllerDeck.NativeInit(Api);
Api.CMD_init();
Api.QUERY_set_path_request(snes_path_request);
_scanlineStartCb = new LibsnesApi.snes_scanlineStart_t(snes_scanlineStart);
_tracecb = new LibsnesApi.snes_trace_t(snes_trace);
_soundcb = new LibsnesApi.snes_audio_sample_t(snes_audio_sample);
// start up audio resampler
InitAudio();
ser.Register <ISoundProvider>(_resampler);
// strip header
if ((romData?.Length & 0x7FFF) == 512)
{
var newData = new byte[romData.Length - 512];
Array.Copy(romData, 512, newData, 0, newData.Length);
romData = newData;
}
if (game["SGB"])
{
IsSGB = true;
SystemId = "SNES";
ser.Register <IBoardInfo>(new SGBBoardInfo());
_currLoadParams = new LoadParams()
{
type = LoadParamType.SuperGameBoy,
rom_xml = null,
rom_data = sgbRomData,
rom_size = (uint)sgbRomData.Length,
dmg_data = romData,
};
if (!LoadCurrent())
{
throw new Exception("snes_load_cartridge_normal() failed");
}
}
else
{
// we may need to get some information out of the cart, even during the following bootup/load process
if (xmlData != null)
{
_romxml = new XmlDocument();
_romxml.Load(new MemoryStream(xmlData));
// bsnes wont inspect the xml to load the necessary sfc file.
// so, we have to do that here and pass it in as the romData :/
if (_romxml["cartridge"]?["rom"] != null)
{
romData = File.ReadAllBytes(CoreComm.CoreFileProvider.PathSubfile(_romxml["cartridge"]["rom"].Attributes["name"].Value));
}
else
{
throw new Exception("Could not find rom file specification in xml file. Please check the integrity of your xml file");
}
}
SystemId = "SNES";
_currLoadParams = new LoadParams
{
type = LoadParamType.Normal,
xml_data = xmlData,
rom_data = romData
};
if (!LoadCurrent())
{
throw new Exception("snes_load_cartridge_normal() failed");
}
}
if (Api.Region == LibsnesApi.SNES_REGION.NTSC)
{
// similar to what aviout reports from snes9x and seems logical from bsnes first principles. bsnes uses that numerator (ntsc master clockrate) for sure.
VsyncNumerator = 21477272;
VsyncDenominator = 4 * 341 * 262;
}
else
{
// http://forums.nesdev.com/viewtopic.php?t=5367&start=19
VsyncNumerator = 21281370;
VsyncDenominator = 4 * 341 * 312;
}
Api.CMD_power();
SetupMemoryDomains(romData, sgbRomData);
if (CurrentProfile == "Compatibility")
{
ser.Register <ITraceable>(_tracer);
}
Api.QUERY_set_path_request(null);
Api.QUERY_set_video_refresh(snes_video_refresh);
Api.QUERY_set_input_poll(snes_input_poll);
Api.QUERY_set_input_state(snes_input_state);
Api.QUERY_set_input_notify(snes_input_notify);
Api.QUERY_set_audio_sample(_soundcb);
Api.Seal();
RefreshPalette();
}
public static ScreenInfo GetScreenInfo(LibsnesApi api)
{
var si = new ScreenInfo();
si.Mode1_BG3_Priority = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG3_PRIORITY) == 1;
si.OBSEL_Size = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.OBSEL_SIZE);
si.OBSEL_NameSel = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.OBSEL_NAMESEL);
si.OBSEL_NameBase = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.OBSEL_NAMEBASE);
si.ObjSizeBounds = ObjSizes[si.OBSEL_Size,1];
int square = Math.Max(si.ObjSizeBounds.Width, si.ObjSizeBounds.Height);
si.ObjSizeBoundsSquare = new Dimensions(square, square);
si.OBJTable0Addr = si.OBSEL_NameBase << 14;
si.OBJTable1Addr = (si.OBJTable0Addr + ((si.OBSEL_NameSel + 1) << 13)) & 0xFFFF;
si.SETINI_Mode7ExtBG = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.SETINI_MODE7_EXTBG) == 1;
si.SETINI_HiRes = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.SETINI_HIRES) == 1;
si.SETINI_Overscan = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.SETINI_OVERSCAN) == 1;
si.SETINI_ObjInterlace = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.SETINI_OBJ_INTERLACE) == 1;
si.SETINI_ScreenInterlace = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.SETINI_SCREEN_INTERLACE) == 1;
si.CGWSEL_ColorMask = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.CGWSEL_COLORMASK);
si.CGWSEL_ColorSubMask = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.CGWSEL_COLORSUBMASK);
si.CGWSEL_AddSubMode = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.CGWSEL_ADDSUBMODE);
si.CGWSEL_DirectColor = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.CGWSEL_DIRECTCOLOR) == 1;
si.CGADSUB_AddSub = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.CGADSUB_MODE);
si.CGADSUB_Half = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.CGADSUB_HALF) == 1;
si.OBJ_MainEnabled = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.TM_OBJ) == 1;
si.OBJ_SubEnabled = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.TS_OBJ) == 1;
si.OBJ_MathEnabled = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.CGADSUB_OBJ) == 1;
si.BK_MathEnabled = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.CGADSUB_BACKDROP) == 1;
si.Mode.MODE = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG_MODE);
si.BG.BG1.Bpp = ModeBpps[si.Mode.MODE, 0];
si.BG.BG2.Bpp = ModeBpps[si.Mode.MODE, 1];
si.BG.BG3.Bpp = ModeBpps[si.Mode.MODE, 2];
si.BG.BG4.Bpp = ModeBpps[si.Mode.MODE, 3];
//initial setting of mode type (derived from bpp table.. mode7 bg types will be fixed up later)
for(int i=1;i<=4;i++)
si.BG[i].BGMode = si.BG[i].Bpp == 0 ? BGMode.Unavailable : BGMode.Text;
si.BG.BG1.TILESIZE = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG1_TILESIZE);
si.BG.BG2.TILESIZE = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG2_TILESIZE);
si.BG.BG3.TILESIZE = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG3_TILESIZE);
si.BG.BG4.TILESIZE = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG4_TILESIZE);
si.BG.BG1.SCSIZE = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG1_SCSIZE);
si.BG.BG2.SCSIZE = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG2_SCSIZE);
si.BG.BG3.SCSIZE = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG3_SCSIZE);
si.BG.BG4.SCSIZE = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG4_SCSIZE);
si.BG.BG1.SCADDR = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG1_SCADDR);
si.BG.BG2.SCADDR = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG2_SCADDR);
si.BG.BG3.SCADDR = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG3_SCADDR);
si.BG.BG4.SCADDR = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG4_SCADDR);
si.BG.BG1.TDADDR = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG1_TDADDR);
si.BG.BG2.TDADDR = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG2_TDADDR);
si.BG.BG3.TDADDR = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG3_TDADDR);
si.BG.BG4.TDADDR = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG4_TDADDR);
si.BG.BG1.MainEnabled = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.TM_BG1) == 1;
si.BG.BG2.MainEnabled = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.TM_BG2) == 1;
si.BG.BG3.MainEnabled = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.TM_BG3) == 1;
si.BG.BG4.MainEnabled = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.TM_BG4) == 1;
si.BG.BG1.SubEnabled = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.TS_BG1) == 1;
si.BG.BG2.SubEnabled = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.TS_BG2) == 1;
si.BG.BG3.SubEnabled = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.TS_BG3) == 1;
si.BG.BG4.SubEnabled = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.TS_BG4) == 1;
si.BG.BG1.MathEnabled = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.CGADSUB_BG1) == 1;
si.BG.BG2.MathEnabled = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.CGADSUB_BG2) == 1;
si.BG.BG3.MathEnabled = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.CGADSUB_BG3) == 1;
si.BG.BG4.MathEnabled = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.CGADSUB_BG4) == 1;
si.BG.BG1.HOFS = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG1HOFS);
si.BG.BG1.VOFS = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG1VOFS);
si.BG.BG2.HOFS = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG2HOFS);
si.BG.BG2.VOFS = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG2VOFS);
si.BG.BG3.HOFS = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG3HOFS);
si.BG.BG3.VOFS = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG3VOFS);
si.BG.BG4.HOFS = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG4HOFS);
si.BG.BG4.VOFS = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG4VOFS);
si.M7HOFS = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.M7HOFS);
si.M7VOFS = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.M7VOFS);
si.M7A = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.M7A);
si.M7B = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.M7B);
si.M7C = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.M7C);
si.M7D = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.M7D);
si.M7X = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.M7X);
si.M7Y = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.M7Y);
si.M7Y = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.M7Y);
si.M7SEL_REPEAT = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.M7SEL_REPEAT);
si.M7SEL_HFLIP = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.M7SEL_HFLIP)!=0;
si.M7SEL_VFLIP = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.M7SEL_VFLIP)!=0;
for (int i = 1; i <= 4; i++)
{
si.BG[i].Mode = si.Mode.MODE;
si.BG[i].TiledataAddr = si.BG[i].TDADDR << 13;
si.BG[i].ScreenAddr = si.BG[i].SCADDR << 9;
}
//fixup irregular things for mode 7
if (si.Mode.MODE == 7)
{
si.BG.BG1.TiledataAddr = 0;
si.BG.BG1.ScreenAddr = 0;
if (si.CGWSEL_DirectColor)
{
si.BG.BG1.BGMode = BGMode.Mode7DC;
}
else
si.BG.BG1.BGMode = BGMode.Mode7;
if (si.SETINI_Mode7ExtBG)
{
si.BG.BG2.BGMode = BGMode.Mode7Ext;
si.BG.BG2.Bpp = 7;
si.BG.BG2.TiledataAddr = 0;
si.BG.BG2.ScreenAddr = 0;
}
}
//determine which colors each BG could use
switch (si.Mode.MODE)
{
case 0:
si.BG.BG1.PaletteSelection = new PaletteSelection(0, 32);
si.BG.BG2.PaletteSelection = new PaletteSelection(32, 32);
si.BG.BG3.PaletteSelection = new PaletteSelection(64, 32);
si.BG.BG4.PaletteSelection = new PaletteSelection(96, 32);
break;
case 1:
si.BG.BG1.PaletteSelection = new PaletteSelection(0, 128);
si.BG.BG2.PaletteSelection = new PaletteSelection(0, 128);
si.BG.BG3.PaletteSelection = new PaletteSelection(0, 32);
si.BG.BG4.PaletteSelection = new PaletteSelection(0, 0);
break;
case 2:
si.BG.BG1.PaletteSelection = new PaletteSelection(0, 128);
si.BG.BG2.PaletteSelection = new PaletteSelection(0, 128);
si.BG.BG3.PaletteSelection = new PaletteSelection(0, 0);
si.BG.BG4.PaletteSelection = new PaletteSelection(0, 0);
break;
case 3:
si.BG.BG1.PaletteSelection = new PaletteSelection(0, 256);
si.BG.BG2.PaletteSelection = new PaletteSelection(0, 128);
si.BG.BG3.PaletteSelection = new PaletteSelection(0, 0);
si.BG.BG4.PaletteSelection = new PaletteSelection(0, 0);
break;
case 4:
si.BG.BG1.PaletteSelection = new PaletteSelection(0, 256);
si.BG.BG2.PaletteSelection = new PaletteSelection(0, 32);
si.BG.BG3.PaletteSelection = new PaletteSelection(0, 0);
si.BG.BG4.PaletteSelection = new PaletteSelection(0, 0);
break;
case 5:
si.BG.BG1.PaletteSelection = new PaletteSelection(0, 128);
si.BG.BG2.PaletteSelection = new PaletteSelection(0, 32);
si.BG.BG3.PaletteSelection = new PaletteSelection(0, 0);
si.BG.BG4.PaletteSelection = new PaletteSelection(0, 0);
break;
case 6:
si.BG.BG1.PaletteSelection = new PaletteSelection(0, 128);
si.BG.BG2.PaletteSelection = new PaletteSelection(0, 32);
si.BG.BG3.PaletteSelection = new PaletteSelection(0, 0);
si.BG.BG4.PaletteSelection = new PaletteSelection(0, 0);
break;
case 7:
si.BG.BG1.PaletteSelection = new PaletteSelection(0, 256);
si.BG.BG2.PaletteSelection = new PaletteSelection(0, 128);
si.BG.BG3.PaletteSelection = new PaletteSelection(0, 0);
si.BG.BG4.PaletteSelection = new PaletteSelection(0, 0);
break;
}
return si;
}
public LibsnesCore(GameInfo game, byte[] romData, bool deterministicEmulation, byte[] xmlData, CoreComm comm, object Settings, object SyncSettings)
{
CoreComm = comm;
byte[] sgbRomData = null;
if (game["SGB"])
{
if ((romData[0x143] & 0xc0) == 0xc0)
throw new CGBNotSupportedException();
sgbRomData = CoreComm.CoreFileProvider.GetFirmware("SNES", "Rom_SGB", true, "SGB Rom is required for SGB emulation.");
game.FirmwareHash = sgbRomData.HashSHA1();
}
this.Settings = (SnesSettings)Settings ?? new SnesSettings();
this.SyncSettings = (SnesSyncSettings)SyncSettings ?? new SnesSyncSettings();
api = new LibsnesApi(GetExePath());
api.CMD_init();
api.ReadHook = ReadHook;
api.ExecHook = ExecHook;
api.WriteHook = WriteHook;
ScanlineHookManager = new MyScanlineHookManager(this);
api.CMD_init();
api.QUERY_set_video_refresh(snes_video_refresh);
api.QUERY_set_input_poll(snes_input_poll);
api.QUERY_set_input_state(snes_input_state);
api.QUERY_set_input_notify(snes_input_notify);
api.QUERY_set_path_request(snes_path_request);
scanlineStart_cb = new LibsnesApi.snes_scanlineStart_t(snes_scanlineStart);
tracecb = new LibsnesApi.snes_trace_t(snes_trace);
soundcb = new LibsnesApi.snes_audio_sample_t(snes_audio_sample);
api.QUERY_set_audio_sample(soundcb);
RefreshPalette();
// start up audio resampler
InitAudio();
//strip header
if(romData != null)
if ((romData.Length & 0x7FFF) == 512)
{
var newData = new byte[romData.Length - 512];
Array.Copy(romData, 512, newData, 0, newData.Length);
romData = newData;
}
if (game["SGB"])
{
IsSGB = true;
SystemId = "SNES";
BoardName = "SGB";
CurrLoadParams = new LoadParams()
{
type = LoadParamType.SuperGameBoy,
rom_xml = null,
rom_data = sgbRomData,
rom_size = (uint)sgbRomData.Length,
dmg_xml = null,
dmg_data = romData,
dmg_size = (uint)romData.Length
};
if (!LoadCurrent())
throw new Exception("snes_load_cartridge_normal() failed");
}
else
{
//we may need to get some information out of the cart, even during the following bootup/load process
if (xmlData != null)
{
romxml = new System.Xml.XmlDocument();
romxml.Load(new MemoryStream(xmlData));
//bsnes wont inspect the xml to load the necessary sfc file.
//so, we have to do that here and pass it in as the romData :/
if (romxml["cartridge"] != null && romxml["cartridge"]["rom"] != null)
romData = File.ReadAllBytes(CoreComm.CoreFileProvider.PathSubfile(romxml["cartridge"]["rom"].Attributes["name"].Value));
else
throw new Exception("Could not find rom file specification in xml file. Please check the integrity of your xml file");
}
SystemId = "SNES";
CurrLoadParams = new LoadParams()
{
type = LoadParamType.Normal,
xml_data = xmlData,
rom_data = romData
};
if(!LoadCurrent())
throw new Exception("snes_load_cartridge_normal() failed");
}
if (api.QUERY_get_region() == LibsnesApi.SNES_REGION.NTSC)
{
//similar to what aviout reports from snes9x and seems logical from bsnes first principles. bsnes uses that numerator (ntsc master clockrate) for sure.
CoreComm.VsyncNum = 21477272;
CoreComm.VsyncDen = 4 * 341 * 262;
}
else
{
//http://forums.nesdev.com/viewtopic.php?t=5367&start=19
CoreComm.VsyncNum = 21281370;
CoreComm.VsyncDen = 4 * 341 * 312;
}
CoreComm.CpuTraceAvailable = true;
api.CMD_power();
SetupMemoryDomains(romData,sgbRomData);
DeterministicEmulation = deterministicEmulation;
if (DeterministicEmulation) // save frame-0 savestate now
{
MemoryStream ms = new MemoryStream();
BinaryWriter bw = new BinaryWriter(ms);
bw.Write(CoreSaveState());
bw.Write(true); // framezero, so no controller follows and don't frameadvance on load
// hack: write fake dummy controller info
bw.Write(new byte[536]);
bw.Close();
savestatebuff = ms.ToArray();
}
}
// ----- Client Debugging API stuff -----
unsafe MemoryDomain MakeMemoryDomain(string name, LibsnesApi.SNES_MEMORY id, MemoryDomain.Endian endian)
{
int size = api.QUERY_get_memory_size(id);
int mask = size - 1;
bool pow2 = Util.IsPowerOfTwo(size);
//if this type of memory isnt available, dont make the memory domain (most commonly save ram)
if (size == 0)
return null;
byte* blockptr = api.QUERY_get_memory_data(id);
MemoryDomain md;
if(id == LibsnesApi.SNES_MEMORY.OAM)
{
//OAM is actually two differently sized banks of memory which arent truly considered adjacent.
//maybe a better way to visualize it is with an empty bus and adjacent banks
//so, we just throw away everything above its size of 544 bytes
if (size != 544) throw new InvalidOperationException("oam size isnt 544 bytes.. wtf?");
md = new MemoryDomain(name, size, endian,
(addr) => (addr < 544) ? blockptr[addr] : (byte)0x00,
(addr, value) => { if (addr < 544) blockptr[addr] = value; }
);
}
else if(pow2)
md = new MemoryDomain(name, size, endian,
(addr) => blockptr[addr & mask],
(addr, value) => blockptr[addr & mask] = value);
else
md = new MemoryDomain(name, size, endian,
(addr) => blockptr[addr % size],
(addr, value) => blockptr[addr % size] = value);
_memoryDomains.Add(md);
return md;
}
public static ScreenInfo GetScreenInfo(LibsnesApi api)
{
var si = new ScreenInfo();
si.Mode1_BG3_Priority = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG3_PRIORITY) == 1;
si.OBSEL_Size = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.OBSEL_SIZE);
si.OBSEL_NameSel = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.OBSEL_NAMESEL);
si.OBSEL_NameBase = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.OBSEL_NAMEBASE);
si.ObjSizeBounds = ObjSizes[si.OBSEL_Size, 1];
int square = Math.Max(si.ObjSizeBounds.Width, si.ObjSizeBounds.Height);
si.ObjSizeBoundsSquare = new Dimensions(square, square);
si.OBJTable0Addr = si.OBSEL_NameBase << 14;
si.OBJTable1Addr = (si.OBJTable0Addr + ((si.OBSEL_NameSel + 1) << 13)) & 0xFFFF;
si.SETINI_Mode7ExtBG = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.SETINI_MODE7_EXTBG) == 1;
si.SETINI_HiRes = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.SETINI_HIRES) == 1;
si.SETINI_Overscan = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.SETINI_OVERSCAN) == 1;
si.SETINI_ObjInterlace = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.SETINI_OBJ_INTERLACE) == 1;
si.SETINI_ScreenInterlace = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.SETINI_SCREEN_INTERLACE) == 1;
si.CGWSEL_ColorMask = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.CGWSEL_COLORMASK);
si.CGWSEL_ColorSubMask = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.CGWSEL_COLORSUBMASK);
si.CGWSEL_AddSubMode = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.CGWSEL_ADDSUBMODE);
si.CGWSEL_DirectColor = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.CGWSEL_DIRECTCOLOR) == 1;
si.CGADSUB_AddSub = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.CGADSUB_MODE);
si.CGADSUB_Half = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.CGADSUB_HALF) == 1;
si.OBJ_MainEnabled = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.TM_OBJ) == 1;
si.OBJ_SubEnabled = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.TS_OBJ) == 1;
si.OBJ_MathEnabled = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.CGADSUB_OBJ) == 1;
si.BK_MathEnabled = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.CGADSUB_BACKDROP) == 1;
si.Mode.MODE = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG_MODE);
si.BG.BG1.Bpp = ModeBpps[si.Mode.MODE, 0];
si.BG.BG2.Bpp = ModeBpps[si.Mode.MODE, 1];
si.BG.BG3.Bpp = ModeBpps[si.Mode.MODE, 2];
si.BG.BG4.Bpp = ModeBpps[si.Mode.MODE, 3];
//initial setting of mode type (derived from bpp table.. mode7 bg types will be fixed up later)
for (int i = 1; i <= 4; i++)
{
si.BG[i].BGMode = si.BG[i].Bpp == 0 ? BGMode.Unavailable : BGMode.Text;
}
si.BG.BG1.TILESIZE = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG1_TILESIZE);
si.BG.BG2.TILESIZE = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG2_TILESIZE);
si.BG.BG3.TILESIZE = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG3_TILESIZE);
si.BG.BG4.TILESIZE = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG4_TILESIZE);
si.BG.BG1.SCSIZE = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG1_SCSIZE);
si.BG.BG2.SCSIZE = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG2_SCSIZE);
si.BG.BG3.SCSIZE = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG3_SCSIZE);
si.BG.BG4.SCSIZE = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG4_SCSIZE);
si.BG.BG1.SCADDR = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG1_SCADDR);
si.BG.BG2.SCADDR = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG2_SCADDR);
si.BG.BG3.SCADDR = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG3_SCADDR);
si.BG.BG4.SCADDR = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG4_SCADDR);
si.BG.BG1.TDADDR = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG1_TDADDR);
si.BG.BG2.TDADDR = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG2_TDADDR);
si.BG.BG3.TDADDR = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG3_TDADDR);
si.BG.BG4.TDADDR = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG4_TDADDR);
si.BG.BG1.MainEnabled = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.TM_BG1) == 1;
si.BG.BG2.MainEnabled = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.TM_BG2) == 1;
si.BG.BG3.MainEnabled = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.TM_BG3) == 1;
si.BG.BG4.MainEnabled = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.TM_BG4) == 1;
si.BG.BG1.SubEnabled = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.TS_BG1) == 1;
si.BG.BG2.SubEnabled = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.TS_BG2) == 1;
si.BG.BG3.SubEnabled = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.TS_BG3) == 1;
si.BG.BG4.SubEnabled = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.TS_BG4) == 1;
si.BG.BG1.MathEnabled = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.CGADSUB_BG1) == 1;
si.BG.BG2.MathEnabled = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.CGADSUB_BG2) == 1;
si.BG.BG3.MathEnabled = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.CGADSUB_BG3) == 1;
si.BG.BG4.MathEnabled = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.CGADSUB_BG4) == 1;
si.BG.BG1.HOFS = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG1HOFS);
si.BG.BG1.VOFS = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG1VOFS);
si.BG.BG2.HOFS = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG2HOFS);
si.BG.BG2.VOFS = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG2VOFS);
si.BG.BG3.HOFS = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG3HOFS);
si.BG.BG3.VOFS = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG3VOFS);
si.BG.BG4.HOFS = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG4HOFS);
si.BG.BG4.VOFS = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.BG4VOFS);
si.M7HOFS = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.M7HOFS);
si.M7VOFS = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.M7VOFS);
si.M7A = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.M7A);
si.M7B = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.M7B);
si.M7C = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.M7C);
si.M7D = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.M7D);
si.M7X = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.M7X);
si.M7Y = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.M7Y);
si.M7Y = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.M7Y);
si.M7SEL_REPEAT = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.M7SEL_REPEAT);
si.M7SEL_HFLIP = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.M7SEL_HFLIP) != 0;
si.M7SEL_VFLIP = api.QUERY_peek_logical_register(LibsnesApi.SNES_REG.M7SEL_VFLIP) != 0;
for (int i = 1; i <= 4; i++)
{
si.BG[i].Mode = si.Mode.MODE;
si.BG[i].TiledataAddr = si.BG[i].TDADDR << 13;
si.BG[i].ScreenAddr = si.BG[i].SCADDR << 9;
}
//fixup irregular things for mode 7
if (si.Mode.MODE == 7)
{
si.BG.BG1.TiledataAddr = 0;
si.BG.BG1.ScreenAddr = 0;
if (si.CGWSEL_DirectColor)
{
si.BG.BG1.BGMode = BGMode.Mode7DC;
}
else
{
si.BG.BG1.BGMode = BGMode.Mode7;
}
if (si.SETINI_Mode7ExtBG)
{
si.BG.BG2.BGMode = BGMode.Mode7Ext;
si.BG.BG2.Bpp = 7;
si.BG.BG2.TiledataAddr = 0;
si.BG.BG2.ScreenAddr = 0;
}
}
//determine which colors each BG could use
switch (si.Mode.MODE)
{
case 0:
si.BG.BG1.PaletteSelection = new PaletteSelection(0, 32);
si.BG.BG2.PaletteSelection = new PaletteSelection(32, 32);
si.BG.BG3.PaletteSelection = new PaletteSelection(64, 32);
si.BG.BG4.PaletteSelection = new PaletteSelection(96, 32);
break;
case 1:
si.BG.BG1.PaletteSelection = new PaletteSelection(0, 128);
si.BG.BG2.PaletteSelection = new PaletteSelection(0, 128);
si.BG.BG3.PaletteSelection = new PaletteSelection(0, 32);
si.BG.BG4.PaletteSelection = new PaletteSelection(0, 0);
break;
case 2:
si.BG.BG1.PaletteSelection = new PaletteSelection(0, 128);
si.BG.BG2.PaletteSelection = new PaletteSelection(0, 128);
si.BG.BG3.PaletteSelection = new PaletteSelection(0, 0);
si.BG.BG4.PaletteSelection = new PaletteSelection(0, 0);
break;
case 3:
si.BG.BG1.PaletteSelection = new PaletteSelection(0, 256);
si.BG.BG2.PaletteSelection = new PaletteSelection(0, 128);
si.BG.BG3.PaletteSelection = new PaletteSelection(0, 0);
si.BG.BG4.PaletteSelection = new PaletteSelection(0, 0);
break;
case 4:
si.BG.BG1.PaletteSelection = new PaletteSelection(0, 256);
si.BG.BG2.PaletteSelection = new PaletteSelection(0, 32);
si.BG.BG3.PaletteSelection = new PaletteSelection(0, 0);
si.BG.BG4.PaletteSelection = new PaletteSelection(0, 0);
break;
case 5:
si.BG.BG1.PaletteSelection = new PaletteSelection(0, 128);
si.BG.BG2.PaletteSelection = new PaletteSelection(0, 32);
si.BG.BG3.PaletteSelection = new PaletteSelection(0, 0);
si.BG.BG4.PaletteSelection = new PaletteSelection(0, 0);
break;
case 6:
si.BG.BG1.PaletteSelection = new PaletteSelection(0, 128);
si.BG.BG2.PaletteSelection = new PaletteSelection(0, 32);
si.BG.BG3.PaletteSelection = new PaletteSelection(0, 0);
si.BG.BG4.PaletteSelection = new PaletteSelection(0, 0);
break;
case 7:
si.BG.BG1.PaletteSelection = new PaletteSelection(0, 256);
si.BG.BG2.PaletteSelection = new PaletteSelection(0, 128);
si.BG.BG3.PaletteSelection = new PaletteSelection(0, 0);
si.BG.BG4.PaletteSelection = new PaletteSelection(0, 0);
break;
}
return(si);
}
public LibsnesCore(GameInfo game, byte[] romData, bool deterministicEmulation, byte[] xmlData, CoreComm comm, object Settings, object SyncSettings)
{
CoreComm = comm;
byte[] sgbRomData = null;
if (game["SGB"])
{
if ((romData[0x143] & 0xc0) == 0xc0)
{
throw new CGBNotSupportedException();
}
sgbRomData = CoreComm.CoreFileProvider.GetFirmware("SNES", "Rom_SGB", true, "SGB Rom is required for SGB emulation.");
game.FirmwareHash = sgbRomData.HashSHA1();
}
this.Settings = (SnesSettings)Settings ?? new SnesSettings();
this.SyncSettings = (SnesSyncSettings)SyncSettings ?? new SnesSyncSettings();
api = new LibsnesApi(GetExePath());
api.CMD_init();
api.ReadHook = ReadHook;
api.ExecHook = ExecHook;
api.WriteHook = WriteHook;
ScanlineHookManager = new MyScanlineHookManager(this);
api.CMD_init();
api.QUERY_set_video_refresh(snes_video_refresh);
api.QUERY_set_input_poll(snes_input_poll);
api.QUERY_set_input_state(snes_input_state);
api.QUERY_set_input_notify(snes_input_notify);
api.QUERY_set_path_request(snes_path_request);
scanlineStart_cb = new LibsnesApi.snes_scanlineStart_t(snes_scanlineStart);
tracecb = new LibsnesApi.snes_trace_t(snes_trace);
soundcb = new LibsnesApi.snes_audio_sample_t(snes_audio_sample);
api.QUERY_set_audio_sample(soundcb);
RefreshPalette();
// start up audio resampler
InitAudio();
//strip header
if (romData != null)
{
if ((romData.Length & 0x7FFF) == 512)
{
var newData = new byte[romData.Length - 512];
Array.Copy(romData, 512, newData, 0, newData.Length);
romData = newData;
}
}
if (game["SGB"])
{
IsSGB = true;
SystemId = "SNES";
BoardName = "SGB";
CurrLoadParams = new LoadParams()
{
type = LoadParamType.SuperGameBoy,
rom_xml = null,
rom_data = sgbRomData,
rom_size = (uint)sgbRomData.Length,
dmg_xml = null,
dmg_data = romData,
dmg_size = (uint)romData.Length
};
if (!LoadCurrent())
{
throw new Exception("snes_load_cartridge_normal() failed");
}
}
else
{
//we may need to get some information out of the cart, even during the following bootup/load process
if (xmlData != null)
{
romxml = new System.Xml.XmlDocument();
romxml.Load(new MemoryStream(xmlData));
//bsnes wont inspect the xml to load the necessary sfc file.
//so, we have to do that here and pass it in as the romData :/
if (romxml["cartridge"] != null && romxml["cartridge"]["rom"] != null)
{
romData = File.ReadAllBytes(CoreComm.CoreFileProvider.PathSubfile(romxml["cartridge"]["rom"].Attributes["name"].Value));
}
else
{
throw new Exception("Could not find rom file specification in xml file. Please check the integrity of your xml file");
}
}
SystemId = "SNES";
CurrLoadParams = new LoadParams()
{
type = LoadParamType.Normal,
xml_data = xmlData,
rom_data = romData
};
if (!LoadCurrent())
{
throw new Exception("snes_load_cartridge_normal() failed");
}
}
if (api.QUERY_get_region() == LibsnesApi.SNES_REGION.NTSC)
{
//similar to what aviout reports from snes9x and seems logical from bsnes first principles. bsnes uses that numerator (ntsc master clockrate) for sure.
CoreComm.VsyncNum = 21477272;
CoreComm.VsyncDen = 4 * 341 * 262;
}
else
{
//http://forums.nesdev.com/viewtopic.php?t=5367&start=19
CoreComm.VsyncNum = 21281370;
CoreComm.VsyncDen = 4 * 341 * 312;
}
CoreComm.CpuTraceAvailable = true;
api.CMD_power();
SetupMemoryDomains(romData, sgbRomData);
DeterministicEmulation = deterministicEmulation;
if (DeterministicEmulation) // save frame-0 savestate now
{
MemoryStream ms = new MemoryStream();
BinaryWriter bw = new BinaryWriter(ms);
bw.Write(CoreSaveState());
bw.Write(true); // framezero, so no controller follows and don't frameadvance on load
// hack: write fake dummy controller info
bw.Write(new byte[536]);
bw.Close();
savestatebuff = ms.ToArray();
}
}
