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Fix background image quality

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This commit is contained in:
Jaex 2023-05-10 09:19:37 +03:00
parent 99791f7af4
commit d63150718b
1 changed files with 13 additions and 10 deletions
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23
ShareX.HelpersLib/Helpers/ImageHelpers.cs
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@ -513,29 +513,32 @@ public static Bitmap AddBackgroundImage(Bitmap bmp, Bitmap backgroundImage)
using (bmp)
using (backgroundImage)
{
Bitmap result = new Bitmap(bmp.Width, bmp.Height);
Bitmap bmpResult = bmp.CreateEmptyBitmap();
float aspectRatio = (float)backgroundImage.Width / backgroundImage.Height;
int width = result.Width;
int width = bmpResult.Width;
int height = (int)(width / aspectRatio);
if (height < result.Height)
if (height < bmpResult.Height)
{
height = result.Height;
height = bmpResult.Height;
width = (int)(height * aspectRatio);
}
int centerX = (result.Width - width) / 2;
int centerY = (result.Height - height) / 2;
int centerX = (bmpResult.Width - width) / 2;
int centerY = (bmpResult.Height - height) / 2;
using (Graphics graphics = Graphics.FromImage(result))
using (Graphics g = Graphics.FromImage(bmpResult))
{
graphics.DrawImage(backgroundImage, centerX, centerY, width, height);
graphics.DrawImage(bmp, 0, 0, bmp.Width, bmp.Height);
g.SetHighQuality();
g.PixelOffsetMode = PixelOffsetMode.Half;
g.DrawImage(backgroundImage, centerX, centerY, width, height);
g.DrawImage(bmp, 0, 0, bmp.Width, bmp.Height);
}
return result;
return bmpResult;
}
}