public void Dispose()
{
_currentFrame?.Dispose();
_dx?.RemoveRef();
_currentFrame = null;
_dx = null;
}
private void DownloadAndDisplayAsBitmap(DirectXResource res)
{
int width = res.Texture2D.Description.Width;
int height = res.Texture2D.Description.Height;
var dx = res.GetDx();
PrepareSoftwareImage(width, height, PixelFormats.Bgra32);
if (_cpuTexture == null ||
_cpuTexture.Texture2D == null ||
_cpuTexture.Texture2D.Description.Width != width ||
_cpuTexture.Texture2D.Description.Height != height ||
_cpuTextureOwner != dx)
{
_cpuTexture?.Dispose();
_cpuTextureOwner = dx;
_cpuTexture = dx.Pool.Get("uiCpu", DirectXResource.Desc(width, height, SharpDX.DXGI.Format.B8G8R8A8_UNorm, BindFlags.None, ResourceUsage.Staging, ResourceOptionFlags.None, CpuAccessFlags.Read));
}
DataBox db = new DataBox();
dx.RunOnContext(ctx =>
{
ctx.CopyResource(res.Texture2D, _cpuTexture.Texture2D);
ctx.Flush();
db = ctx.MapSubresource(_cpuTexture.Texture2D, 0, MapMode.Read, MapFlags.None);
}, "Download for ui");
if (db.SlicePitch > 0)
{
_softwareImage.WritePixels(new Int32Rect(0, 0, width, height), db.DataPointer, db.SlicePitch, db.RowPitch);
}
dx.RunOnContext(ctx => ctx.UnmapSubresource(_cpuTexture.Texture2D, 0), "Unmap for ui");
if (Source != _softwareImage)
{
Source = _softwareImage;
}
}
