private bool[] _isCellDirty = new bool[Height * CellColumns + 1]; // includes sentinel
public Video(MachineEvents events, IMemoryBus memory)
{
_events = events;
_memory = memory;
_events.AddEventDelegate(EventCallbacks.FlushRow, FlushRowEvent);
_events.AddEventDelegate(EventCallbacks.InverseText, InverseTextEvent);
_events.AddEventDelegate(EventCallbacks.LeaveVBlank, LeaveVBlankEvent);
_events.AddEventDelegate(EventCallbacks.ResetVsync, ResetVSyncEvent);
_flushRowMode = new Action <int>[]
{
FlushRowMode0, FlushRowMode1, FlushRowMode2, FlushRowMode3, FlushRowMode4, FlushRowMode5, FlushRowMode6, FlushRowMode7,
FlushRowMode8, FlushRowMode9, FlushRowModeA, FlushRowModeB, FlushRowModeC, FlushRowModeD, FlushRowModeE, FlushRowModeF
};
unchecked
{
_colorBlack = (int)0xFF000000; // BGRA
_colorDarkBlue = (int)0xFF000099;
_colorDarkGreen = (int)0xFF117722;
_colorMediumBlue = (int)0xFF0000FF;
_colorBrown = (int)0xFF885500;
_colorLightGrey = (int)0xFF99AAAA;
_colorGreen = (int)0xFF00EE11;
_colorAquamarine = (int)0xFF55FFAA;
_colorDeepRed = (int)0xFFFF1111;
_colorPurple = (int)0xFFDD00DD;
_colorDarkGrey = (int)0xFF445555;
_colorLightBlue = (int)0xFF33AAFF;
_colorOrange = (int)0xFFFF4411;
_colorPink = (int)0xFFFF9988;
_colorYellow = (int)0xFFFFFF11;
_colorWhite = (int)0xFFFFFFFF;
_colorMonochrome = (int)0xFF00AA00;
}
SetPalette();
IsMonochrome = false;
ScannerOptions = ScannerOptions.None;
_isVBlank = true;
_events.AddEvent(_cyclesPerVBlankPreset, EventCallbacks.LeaveVBlank); // align flush events with scanner; assumes vcount preset at start of frame [3-15, 3-16]
_events.AddEvent(_cyclesPerVSync, EventCallbacks.ResetVsync);
_events.AddEvent(_cyclesPerFlash, EventCallbacks.InverseText);
}
private void FlushRowEvent()
{
int y = (_cyclesPerVSync - _cyclesPerVBlankPreset - _events.FindEvent(EventCallbacks.ResetVsync)) / CyclesPerHSync;
_flushRowMode[_memory.VideoMode](y - CellHeight); // in arrears
if (y < Height)
{
_events.AddEvent(CyclesPerFlush, EventCallbacks.FlushRow);
}
else
{
_isVBlank = true;
_events.AddEvent(_cyclesPerVBlank, EventCallbacks.LeaveVBlank);
}
}