/// <summary>
/// Function to initialize the example and prepare the required components.
/// </summary>
private static void Initialize()
{
// We will need to access the graphics device in order to use compute functionality, so we'll use the first usable device in the system.
// Find out which devices we have installed in the system.
IReadOnlyList <IGorgonVideoAdapterInfo> deviceList = GorgonGraphics.EnumerateAdapters();
Console.WriteLine("Enumerating video devices...");
IGorgonVideoAdapterInfo firstDevice = deviceList.FirstOrDefault(item => item.FeatureSet >= FeatureSet.Level_12_0);
// If a device with a feature set of at least 12.0 not found, then we cannot run this example. The compute engine requires a minimum
// of feature level 12.0 to run.
if (firstDevice == null)
{
Console.ForegroundColor = ConsoleColor.Yellow;
Console.WriteLine("No Level 12.0 or better adapters found in the system. This example requires a FeatureLevel 12.0 or better adapter.");
Console.ResetColor();
return;
}
Console.WriteLine($"Using the '{firstDevice.Name}' video device.\n");
// We have to create a graphics interface to allow the compute engine to communicate with the GPU.
_graphics = new GorgonGraphics(firstDevice);
// We will also need to compile a compute shader so we can actually perform the work.
Console.WriteLine("Compiling the compute shader (SimpleCompute)...");
_computeShader = GorgonShaderFactory.Compile <GorgonComputeShader>(_graphics, Resources.ComputeShader, "SimpleCompute");
// Finally, the star of the show, the compute engine.
Console.WriteLine("Creating compute engine...");
_engine = new GorgonComputeEngine(_graphics);
}
/// <summary>
/// Initializes a new instance of the <see cref="Sobel"/> class.
/// </summary>
/// <param name="graphics">The graphics interface to use.</param>
/// <param name="sobelShader">The shader for sobel edge detection.</param>
/// <exception cref="ArgumentNullException">Thrown when the <paramref name="graphics"/>, or the <paramref name="sobelShader"/> parameter is <b>null</b>.</exception>
public Sobel(GorgonGraphics graphics, GorgonComputeShader sobelShader)
{
if (sobelShader == null)
{
throw new ArgumentNullException(nameof(sobelShader));
}
_compute = new GorgonComputeEngine(graphics);
_sobelData = new GorgonConstantBuffer(graphics,
new GorgonConstantBufferInfo("SobelData")
{
Usage = ResourceUsage.Dynamic,
SizeInBytes = 16
});
_dispatchBuilder = new GorgonDispatchCallBuilder();
_dispatchBuilder.ConstantBuffer(_sobelData.GetView())
.ComputeShader(sobelShader);
}
/// <summary>
/// Raises the <see cref="E:System.Windows.Forms.Form.Load" /> event.
/// </summary>
/// <param name="e">An <see cref="T:System.EventArgs" /> that contains the event data.</param>
protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
Cursor.Current = Cursors.WaitCursor;
try
{
// Find out which devices we have installed in the system.
IReadOnlyList <IGorgonVideoAdapterInfo> deviceList = GorgonGraphics.EnumerateAdapters();
if (deviceList.Count == 0)
{
GorgonDialogs.ErrorBox(this, "There are no suitable video adapters available in the system. This example is unable to continue and will now exit.");
GorgonApplication.Quit();
return;
}
_graphics = new GorgonGraphics(deviceList[0]);
_renderer = new GraphicsRenderer(_graphics);
_renderer.SetPanel(PanelDisplay);
// Load the compute shader.
#if DEBUG
_sobelShader = GorgonShaderFactory.Compile <GorgonComputeShader>(_graphics, Resources.ComputeShader, "SobelCS", true);
#else
_sobelShader = GorgonShaderFactory.Compile <GorgonComputeShader>(_graphics, Resources.ComputeShader, "SobelCS");
#endif
_sobel = new Sobel(_graphics, _sobelShader);
GorgonApplication.IdleMethod = Idle;
}
catch (Exception ex)
{
GorgonExample.HandleException(ex);
GorgonApplication.Quit();
}
finally
{
Cursor.Current = Cursors.Default;
}
}
