public void ReleaseImagePixelsWasInvoked()
{
bool released = false;
var onRelease = new SKImageRasterReleaseDelegate((addr, ctx) => {
Marshal.FreeCoTaskMem(addr);
released = true;
Assert.Equal("RELEASING!", ctx);
});
var info = new SKImageInfo(1, 1);
var pixels = Marshal.AllocCoTaskMem(info.BytesSize);
using (var pixmap = new SKPixmap(info, pixels))
using (var image = SKImage.FromPixels(pixmap, onRelease, "RELEASING!"))
{
Assert.False(image.IsTextureBacked);
using (var raster = image.ToRasterImage())
{
Assert.Equal(image, raster);
}
Assert.False(released, "The SKImageRasterReleaseDelegate was called too soon.");
}
Assert.True(released, "The SKImageRasterReleaseDelegate was not called.");
}
public static SKImage FromPixels(SKPixmap pixmap, SKImageRasterReleaseDelegate releaseProc, object releaseContext)
{
if (pixmap == null)
{
throw new ArgumentNullException(nameof(pixmap));
}
var del = releaseProc != null && releaseContext != null
? new SKImageRasterReleaseDelegate((addr, _) => releaseProc(addr, releaseContext))
: releaseProc;
var proxy = DelegateProxies.Create(del, DelegateProxies.SKImageRasterReleaseDelegateProxy, out _, out var ctx);
return(GetObject <SKImage> (SkiaApi.sk_image_new_raster(pixmap.Handle, proxy, (void *)ctx)));
}
public static SKImage FromPixels(SKPixmap pixmap, SKImageRasterReleaseDelegate releaseProc, object releaseContext)
{
if (pixmap == null)
{
throw new ArgumentNullException(nameof(pixmap));
}
if (releaseProc == null)
{
return(GetObject <SKImage> (SkiaApi.sk_image_new_raster(pixmap.Handle, IntPtr.Zero, IntPtr.Zero)));
}
else
{
var ctx = new NativeDelegateContext(releaseContext, releaseProc);
return(GetObject <SKImage> (SkiaApi.sk_image_new_raster(pixmap.Handle, rasterReleaseDelegate, ctx.NativeContext)));
}
}
public static SKImage FromPixels(SKPixmap pixmap, SKImageRasterReleaseDelegate releaseProc)
{
return(FromPixels(pixmap, releaseProc, null));
}
