/// <summary>
/// The picture unit
/// </summary>
/// <param name="tv">The tv format</param>
/// <param name="paletteFormat">Palette Format</param>
/// <param name="engine">Engine NES</param>
public Ppu(TvFormat tv, PaletteFormat paletteFormat, NesEngine engine)
{
_engine = engine;
_cartridge = _engine.Memory.Map.Cartridge;
VRam = new byte[0x2000];
SprRam = new byte[0x100];
SetTvFormat(tv, paletteFormat);
Debug.WriteLine(this, "PPU initialized ok.", DebugStatus.Cool);
}
public NesEngine(TvFormat tvFormat, PaletteFormat plFormat)
{
AutoSaveSram = true;
Debug.WriteLine(this, "Initializeing the nes emulation engine...", DebugStatus.None);
TvFormat = tvFormat;
//Initialize Engine
Memory = new Memory.Memory(this);
Cpu = new Cpu(Memory, tvFormat, this);
Cpu.PauseToggle += CpuPauseToggle;
Ppu = new Ppu(tvFormat, plFormat, this);
Debug.WriteLine(this, "Nes initialized ok.", DebugStatus.Cool);
}
public void SetTvFormat(TvFormat format, PaletteFormat plFormat)
{
switch (format)
{
case TvFormat.Ntsc:
ScanlinesPerFrame = 261;
_framePeriod = 0.01667; //60 FPS
//FramePeriod = 2;
ScanlineOfVblank = 244;
if (plFormat.UseInternalPalette)
{
switch (plFormat.UseInternalPaletteMode)
{
case UseInternalPaletteMode.Auto:
Palette = Paletter.NtscPalette;
break;
case UseInternalPaletteMode.Ntsc:
Palette = Paletter.NtscPalette;
break;
case UseInternalPaletteMode.Pal:
Palette = Paletter.PalPalette;
break;
}
}
else
{
if (Paletter.LoadPalette(plFormat.ExternalPalettePath) != null)
{
Palette = Paletter.LoadPalette(plFormat.ExternalPalettePath);
}
else
{
Palette = Paletter.NtscPalette;
Debug.WriteLine(this,
"Could not find the external palette file, uses the defualt palette for NTSC.",
DebugStatus.Error);
}
}
break;
case TvFormat.Pal:
ScanlinesPerFrame = 311;
_framePeriod = 0.020; //50 FPS
ScanlineOfVblank = 290;
if (plFormat.UseInternalPalette)
{
switch (plFormat.UseInternalPaletteMode)
{
case UseInternalPaletteMode.Auto:
Palette = Paletter.PalPalette;
break;
case UseInternalPaletteMode.Ntsc:
Palette = Paletter.NtscPalette;
break;
case UseInternalPaletteMode.Pal:
Palette = Paletter.PalPalette;
break;
}
}
else
{
if (Paletter.LoadPalette(plFormat.ExternalPalettePath) != null)
{
Palette = Paletter.LoadPalette(plFormat.ExternalPalettePath);
}
else
{
Palette = Paletter.PalPalette;
Debug.WriteLine(this,
"Could not find the external palette file, uses the defualt palette for PAL.",
DebugStatus.Error);
}
}
break;
}
}
/// <summary>
/// The picture unit
/// </summary>
/// <param name="tv">The tv format</param>
/// <param name="paletteFormat">Palette Format</param>
/// <param name="engine">Engine NES</param>
public Ppu(TvFormat tv, PaletteFormat paletteFormat, NesEngine engine)
{
_engine = engine;
_cartridge = _engine.Memory.Map.Cartridge;
VRam = new byte[0x2000];
SprRam = new byte[0x100];
SetTvFormat(tv, paletteFormat);
Debug.WriteLine(this, "PPU initialized ok.", DebugStatus.Cool);
}
public void SetTvFormat(TvFormat format, PaletteFormat plFormat)
{
switch (format)
{
case TvFormat.Ntsc:
ScanlinesPerFrame = 261;
_framePeriod = 0.01667; //60 FPS
//FramePeriod = 2;
ScanlineOfVblank = 244;
if (plFormat.UseInternalPalette)
{
switch (plFormat.UseInternalPaletteMode)
{
case UseInternalPaletteMode.Auto:
Palette = Paletter.NtscPalette;
break;
case UseInternalPaletteMode.Ntsc:
Palette = Paletter.NtscPalette;
break;
case UseInternalPaletteMode.Pal:
Palette = Paletter.PalPalette;
break;
}
}
else
{
if (Paletter.LoadPalette(plFormat.ExternalPalettePath) != null)
{
Palette = Paletter.LoadPalette(plFormat.ExternalPalettePath);
}
else
{
Palette = Paletter.NtscPalette;
Debug.WriteLine(this,
"Could not find the external palette file, uses the defualt palette for NTSC.",
DebugStatus.Error);
}
}
break;
case TvFormat.Pal:
ScanlinesPerFrame = 311;
_framePeriod = 0.020; //50 FPS
ScanlineOfVblank = 290;
if (plFormat.UseInternalPalette)
{
switch (plFormat.UseInternalPaletteMode)
{
case UseInternalPaletteMode.Auto:
Palette = Paletter.PalPalette;
break;
case UseInternalPaletteMode.Ntsc:
Palette = Paletter.NtscPalette;
break;
case UseInternalPaletteMode.Pal:
Palette = Paletter.PalPalette;
break;
}
}
else
{
if (Paletter.LoadPalette(plFormat.ExternalPalettePath) != null)
{
Palette = Paletter.LoadPalette(plFormat.ExternalPalettePath);
}
else
{
Palette = Paletter.PalPalette;
Debug.WriteLine(this,
"Could not find the external palette file, uses the defualt palette for PAL.",
DebugStatus.Error);
}
}
break;
}
}
public void SetupTv(TvFormat tvFormat, PaletteFormat palleteFormat)
{
Pause();
Cpu.SetTvFormat(tvFormat);
Ppu.SetTvFormat(tvFormat, palleteFormat);
}
