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Added sorting palette of images (fixes #23)

fonts_experiment 1.0.2.9
Valeriy Mironov 2018-03-25 11:42:15 +03:00
parent 320be4c269
commit 631b90fcb5
1 changed files with 24 additions and 0 deletions
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24
Resources/Image/Writer.cs
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@ -85,6 +85,29 @@ namespace Resources.Image
}
}
}
var startIndex = _transparency == 0 ? 0 : 1;
for (var i = startIndex; i < _palette.Count - 1; i++)
{
var minColor = (uint) _palette[i].ToArgb();
var minIndex = i;
for (var j = i + 1; j < _palette.Count; j++)
{
var color = (uint) _palette[j].ToArgb();
if (color >= minColor) continue;
minColor = color;
minIndex = j;
}
if (minIndex == i) continue;
var tmp = _palette[i];
_palette[i] = _palette[minIndex];
_palette[minIndex] = tmp;
}
_paletteColors = (ushort) _palette.Count;
_bitsPerPixel = (ushort) Math.Ceiling(Math.Log(_paletteColors, 2));
}
@ -149,6 +172,7 @@ namespace Resources.Image
bitWriter.WriteBits(paletteIndex, _bitsPerPixel);
}
}
bitWriter.Flush();
_writer.Write(rowData);
}