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Fix DrawCharHeight ceiling division to prevent missing pixels on thin strokes at small sizes

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Stone_Red
2026-06-16 20:27:38 +02:00
parent 5265f2b574
commit c53eb280d4
1 changed files with 4 additions and 8 deletions
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Utils/CanvasExtensions.cs
+4 -8
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@@ -91,32 +91,28 @@ public static class CanvasExtensions
byte[] data = font.Data;
int targetWidth = width * targetHeight / height;
int bytesPerRow = (width + 7) / 8;
int p = height * bytesPerRow * (byte)c;
for (int cy = 0; cy < height; cy++)
{
int startY = cy * targetHeight / height;
int endY = (cy + 1) * targetHeight / height;
int endY = ((cy + 1) * targetHeight + height - 1) / height;
for (byte cx = 0; cx < width; cx++)
for (int cx = 0; cx < width; cx++)
{
byte byteValue = data[p + (cy * bytesPerRow) + (cx / 8)];
if (font.ConvertByteToBitAddress(byteValue, (cx % 8) + 1))
{
int startX = cx * targetWidth / width;
int endX = (cx + 1) * targetWidth / width;
int endX = ((cx + 1) * targetWidth + width - 1) / width;
for (int sy = startY; sy < endY; sy++)
{
for (int sx = startX; sx < endX; sx++)
{
canvas.DrawPoint(
color,
(ushort)(x + sx),
(ushort)(y + sy));
canvas.DrawPoint(color, (ushort)(x + sx), (ushort)(y + sy));
}
}
}