//public void PutChar(int _Col, int _Row, byte _Char)
//{
// var charIdx = _Row * cRowSize + _Col;
// _videoRam[charIdx] = _Char;
// if (_allInvalid) return;
// lock (_invalidCharPositions)
// {
// if (!_allInvalid)
// {
// if (_invalidCharPositions.Count >= cInvalidLimit)
// {
// _allInvalid = true;
// _invalidCharPositions.Clear();
// }
// else
// _invalidCharPositions.Add(hCharIdx);
// }
// }
//}
public void UpdateScreen()
{
WritePixelsInfo[] writePixelsInfos;
Monitor.Enter(_invalidCharPositions);
if (_allInvalid)
{
_allInvalid = false;
_invalidCharPositions.Clear();
Monitor.Exit(_invalidCharPositions);
writePixelsInfos = new WritePixelsInfo[RowCount * ColCount];
Parallel.For(
0,
RowCount,
row =>
{
for (var col = 0; col < ColCount; col++)
{
var info = PrepareDrawChar(col, row);
if (info != null)
{
writePixelsInfos[row * ColCount + col] = info;
}
}
});
}
else
{
var charIndices = _invalidCharPositions.ToArray();
_invalidCharPositions.Clear();
Monitor.Exit(_invalidCharPositions);
writePixelsInfos = new WritePixelsInfo[charIndices.Length];
Parallel.For(
0,
charIndices.Length,
idx =>
{
var charIdx = charIndices[idx];
var info = PrepareDrawChar(charIdx % RowSize, charIdx / RowSize);
if (info != null)
{
writePixelsInfos[idx] = info;
}
});
}
foreach (var info in writePixelsInfos.Where(pixelInfo => pixelInfo != null))
{
_screen.WritePixels(info.Rect, info.Pixels, info.Stride, 0);
}
}
//public void PutChar(int _Col, int _Row, byte _Char)
//{
// var hCharIdx = _Row * cRowSize + _Col;
// _videoRam[hCharIdx] = _Char;
// if (FAllInvalid) return;
// lock (FInvalidCharPositions)
// {
// if (!FAllInvalid)
// {
// if (FInvalidCharPositions.Count >= cInvalidLimit)
// {
// FAllInvalid = true;
// FInvalidCharPositions.Clear();
// }
// else
// FInvalidCharPositions.Add(hCharIdx);
// }
// }
//}
public void UpdateScreen()
{
WritePixelsInfo[] hWritePixelsInfos;
Monitor.Enter(_invalidCharPositions);
if (_allInvalid)
{
_allInvalid = false;
_invalidCharPositions.Clear();
Monitor.Exit(_invalidCharPositions);
hWritePixelsInfos = new WritePixelsInfo[RowCount * ColCount];
Parallel.For(
0,
RowCount,
row =>
{
for (var hCol = 0; hCol < ColCount; hCol++)
{
var hWritePixelsInfo = PrepareDrawChar(hCol, row);
if (hWritePixelsInfo != null)
hWritePixelsInfos[row * ColCount + hCol] = hWritePixelsInfo;
}
});
}
else
{
var hCharIndices = _invalidCharPositions.ToArray();
_invalidCharPositions.Clear();
Monitor.Exit(_invalidCharPositions);
hWritePixelsInfos = new WritePixelsInfo[hCharIndices.Length];
Parallel.For(
0,
hCharIndices.Length,
idx =>
{
var hCharIdx = hCharIndices[idx];
var hWritePixelsInfo = PrepareDrawChar(hCharIdx % RowSize, hCharIdx / RowSize);
if (hWritePixelsInfo != null)
hWritePixelsInfos[idx] = hWritePixelsInfo;
});
}
foreach (var hWritePixelsInfo in hWritePixelsInfos.Where(pixelInfo => pixelInfo != null))
_screen.WritePixels(hWritePixelsInfo.Rect, hWritePixelsInfo.Pixels, hWritePixelsInfo.Stride, 0);
}