public void ReadPixelSucceeds()
{
var info = new SKImageInfo(10, 10);
var ptr1 = Marshal.AllocCoTaskMem(info.BytesSize);
var pix1 = new SKPixmap(info, ptr1);
var ptr2 = Marshal.AllocCoTaskMem(info.BytesSize);
var result = pix1.ReadPixels(info, ptr2, info.RowBytes);
Assert.True(result);
}
public static Bitmap ToBitmap(this SKPixmap skiaPixmap)
{
var info = skiaPixmap.Info;
// destination values
var config = Bitmap.Config.Argb8888;
var dstInfo = new SKImageInfo(info.Width, info.Height);
// try keep the pixel format if we can
switch (info.ColorType)
{
case SKColorType.Alpha8:
config = Bitmap.Config.Alpha8;
dstInfo.ColorType = SKColorType.Alpha8;
break;
case SKColorType.Rgb565:
config = Bitmap.Config.Rgb565;
dstInfo.ColorType = SKColorType.Rgb565;
dstInfo.AlphaType = SKAlphaType.Opaque;
break;
#pragma warning disable CS0618 // Type or member is obsolete
case SKColorType.Argb4444:
config = Bitmap.Config.Argb4444;
dstInfo.ColorType = SKColorType.Argb4444;
break;
#pragma warning restore CS0618 // Type or member is obsolete
}
// destination bitmap
var bmp = Bitmap.CreateBitmap(info.Width, info.Height, config);
var ptr = bmp.LockPixels();
// copy
var success = skiaPixmap.ReadPixels(dstInfo, ptr, dstInfo.RowBytes);
// confirm
bmp.UnlockPixels();
if (!success)
{
bmp.Recycle();
bmp.Dispose();
bmp = null;
}
return(bmp);
}
public static void ToSKPixmap(this Pixbuf pixbuf, SKPixmap pixmap)
{
// TODO: maybe keep the same color types where we can, instead of just going to the platform default
var info = new SKImageInfo(pixbuf.Width, pixbuf.Height);
using (var temp = new SKPixmap(info, pixbuf.Pixels))
{
temp.ReadPixels(pixmap);
if (info.ColorType == SKColorType.Bgra8888)
{
SKSwizzle.SwapRedBlue(pixmap.GetPixels(), info.Width * info.Height);
}
}
}
