[BUG] Encode overload with Stream destination produces "corruption" at the bottom.

[ha-ves]

Description

The overload of SKPixmap

public bool Encode(Stream dst, SKEncodedImageFormat encoder, int quality)

is producing a black bar that is cropping the bottom part, but when i use this overload

public SKData Encode(SKEncodedImageFormat encoder, int quality)

and manually save the SKData its fine without cropping the bottom part.

It might have been a SKManagedWStream issue.

Code

var pxs = Marshal.AllocHGlobal(skInfo.BytesSize);

var bmp2 = new SKPixmap(skInfo.WithSize(640, 640), pxs);
image.ScalePixels(bmp2, SKSamplingOptions.Default);

bmp2.Encode(File.Create("save2.png"), SKEncodedImageFormat.Png, 100);

var enc = bmp2.Encode(SKEncodedImageFormat.Png, 100);
var f = File.Create("save3.png");
enc.SaveTo(f);

Expected Behavior

No black bar just like save3.png

Actual Behavior

Produces a black bar at the bottom for save2.png

Version of SkiaSharp

3.116.0 (Current)

Last Known Good Version of SkiaSharp

3.116.0 (Current)

IDE / Editor

Visual Studio (Windows)

Platform / Operating System

Windows

Platform / Operating System Version

No response

Devices

No response

Relevant Screenshots

Save2.png

save2.png

Save3.png

save3.png

Relevant Log Output

No response

Code of Conduct

• I agree to follow this project's Code of Conduct

[ha-ves]

As I was writing this issue, I realized it has different behavior when uploaded to github.
Notice the bottom part.