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Rewrite CropWhitespace

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This commit is contained in:
Patrick Barron 2020-07-19 18:06:12 -04:00
parent 4a356efa2c
commit 36b05157f0
1 changed files with 10 additions and 37 deletions
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47
Jellyfin.Drawing.Skia/SkiaEncoder.cs
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@ -139,54 +139,27 @@ namespace Jellyfin.Drawing.Skia
private SKBitmap CropWhiteSpace(SKBitmap bitmap)
{
var topmost = 0;
for (int row = 0; row < bitmap.Height; ++row)
while (topmost < bitmap.Height && IsTransparentRow(bitmap, topmost))
{
if (IsTransparentRow(bitmap, row))
{
topmost = row + 1;
}
else
{
break;
}
topmost++;
}
int bottommost = bitmap.Height;
for (int row = bitmap.Height - 1; row >= 0; --row)
while (bottommost >= 0 && IsTransparentRow(bitmap, bottommost - 1))
{
if (IsTransparentRow(bitmap, row))
{
bottommost = row;
}
else
{
break;
}
bottommost--;
}
int leftmost = 0, rightmost = bitmap.Width;
for (int col = 0; col < bitmap.Width; ++col)
var leftmost = 0;
while (leftmost < bitmap.Width && IsTransparentColumn(bitmap, leftmost))
{
if (IsTransparentColumn(bitmap, col))
{
leftmost = col + 1;
}
else
{
break;
}
leftmost++;
}
for (int col = bitmap.Width - 1; col >= 0; --col)
var rightmost = bitmap.Width;
while (rightmost >= 0 && IsTransparentColumn(bitmap, rightmost - 1))
{
if (IsTransparentColumn(bitmap, col))
{
rightmost = col;
}
else
{
break;
}
rightmost--;
}
var newRect = SKRectI.Create(leftmost, topmost, rightmost - leftmost, bottommost - topmost);