private static void DrawAttachedPicture(ThumbnailsRenderContext ctx, MediaStream attachedPicStream)
{
using var attachedPicture = attachedPicStream.ReadAttachedPicture();
var attachedPictureVipsImage = Image.ThumbnailStream(
attachedPicture,
(int)(ThumbnailUtils.DefaultMaxWidth * ctx.Density),
height: (int)(ThumbnailUtils.DefaultMaxHeight * ctx.Density),
noRotate: false);
attachedPictureVipsImage = attachedPictureVipsImage.Colourspace(Enums.Interpretation.Srgb).Cast(Enums.BandFormat.Uchar);
if (!attachedPictureVipsImage.HasAlpha())
{
attachedPictureVipsImage = attachedPictureVipsImage.Bandjoin(255);
}
var imageWidth = attachedPictureVipsImage.Width;
var imageHeight = attachedPictureVipsImage.Height;
var sourceImageDataPtr = attachedPictureVipsImage.WriteToMemory(out _);
attachedPictureVipsImage.Close();
try
{
using var colorspace = SKColorSpace.CreateSrgb();
var sourceImageInfo = new SKImageInfo(
imageWidth,
imageHeight,
SKColorType.Rgba8888,
SKAlphaType.Unpremul,
colorspace);
using var image =
SKImage.FromPixels(sourceImageInfo, sourceImageDataPtr, sourceImageInfo.RowBytes);
_cachedDecorationImage ??= SKImage.FromEncodedData(ReadDecorationImage());
ThumbnailUtils.DrawShadowView(
ctx,
new SkImageView(image),
_cachedDecorationImage,
new SKColor(0, 0, 0),
minSize: new SKSize(24, 24));
}
finally
{
NetVips.NetVips.Free(sourceImageDataPtr);
}
}
