/// <summary>
/// Update the RenderWindow or RenderBitmap with the updated tile from
/// Cycles render progress.
/// </summary>
/// <param name="sessionId"></param>
/// <param name="tx"></param>
/// <param name="ty"></param>
/// <param name="tw"></param>
/// <param name="th"></param>
public void DisplayBuffer(uint sessionId, uint tx, uint ty, uint tw, uint th)
{
if (IsStopped) return;
var start = DateTime.Now;
var rg = RenderBitmap;
if (RenderWindow != null)
{
using (var channel = RenderWindow.OpenChannel(RenderWindow.StandardChannels.RGBA))
{
if (channel != null)
{
var pixelbuffer = new PixelBuffer(CSycles.session_get_buffer(Client.Id, sessionId));
var size = Client.Scene.Camera.Size;
var rect = new Rectangle((int) tx, (int) ty, (int) tw, (int) th);
channel.SetValues(rect, size, pixelbuffer);
RenderWindow.InvalidateArea(rect);
}
}
}
else if (rg != null)
{
uint buffer_size;
uint buffer_stride;
var width = RenderDimension.Width;
CSycles.session_get_buffer_info(Client.Id, sessionId, out buffer_size, out buffer_stride);
var pixels = CSycles.session_copy_buffer(Client.Id, sessionId, buffer_size);
for (var x = (int)tx; x < (int)(tx + tw); x++)
{
for (var y = (int)ty; y < (int)(ty + th); y++)
{
var i = y * width * 4 + x * 4;
var r = pixels[i];
var g = pixels[i + 1];
var b = pixels[i + 2];
var a = pixels[i + 3];
r = Math.Min(Math.Abs(r), 1.0f);
g = Math.Min(Math.Abs(g), 1.0f);
b = Math.Min(Math.Abs(b), 1.0f);
a = Math.Min(Math.Abs(a), 1.0f);
var c4_f = new Color4f(r, g, b, a);
rg.SetPixel(x, y, c4_f.AsSystemColor());
}
}
}
var diff = (DateTime.Now - start).TotalMilliseconds;
}
