private void TryAddDeviceWithDisplayMode(GameGraphicsParameters prefferedParameters,
GraphicsAdapter graphicsAdapter,
GraphicsDeviceInformation deviceInfo,
List<GraphicsDeviceInformation> graphicsDeviceInfos)
{
// if we want to switch to fullscreen, try to find only needed output, otherwise check them all
if (prefferedParameters.IsFullScreen)
{
if (prefferedParameters.PreferredFullScreenOutputIndex < graphicsAdapter.OutputsCount)
{
var output = graphicsAdapter.GetOutputAt(prefferedParameters.PreferredFullScreenOutputIndex);
TryAddDeviceFromOutput(prefferedParameters, output, deviceInfo, graphicsDeviceInfos);
}
}
else
{
for (var i = 0; i < graphicsAdapter.OutputsCount; i++)
{
var output = graphicsAdapter.GetOutputAt(i);
TryAddDeviceFromOutput(prefferedParameters, output, deviceInfo, graphicsDeviceInfos);
}
}
}
/// <summary>
/// Appends the information about current graphics adapter and its output and adds it to the list of available graphics modes
/// </summary>
/// <param name="sb">Where to write the information</param>
/// <param name="adapter">The adapter whose information needs to be analyzed</param>
private void AppendAdapterInfo(StringBuilder sb, GraphicsAdapter adapter)
{
var adapterDescription = adapter.Description;
// general adapter information
sb.AppendLine(adapterDescription.Description);
// onboard video RAM
sb.AppendFormat("VRAM : {0}MiB{1}", ToMB(adapterDescription.DedicatedVideoMemory), Environment.NewLine);
// OS RAM dedicated to the adapter (typical for integrated GPUs)
sb.AppendFormat("Dedicated OS RAM : {0}MiB{1}", ToMB(adapterDescription.DedicatedSystemMemory), Environment.NewLine);
// OS RAM that can be shared with the adapter (for example, 'Turbo Cache' for NVidia GPUs)
sb.AppendFormat("Shared OS RAM : {0}MiB{1}", ToMB(adapterDescription.SharedSystemMemory), Environment.NewLine);
// iterate trough all outputs attached to this adapter
for (var i = 0; i < adapter.OutputsCount; i++)
{
// write its information
var output = adapter.GetOutputAt(i);
sb.AppendFormat("Output {0}; ", i);
var description = ((Output)output).Description;
var desktopBounds = description.DesktopBounds;
sb.AppendFormat("{0}; Attached to desktop: {1}; Desktop bounds: ({2},{3}; {4},{5}); ",
description.DeviceName,
description.IsAttachedToDesktop,
desktopBounds.Left,
desktopBounds.Top,
desktopBounds.Right,
desktopBounds.Bottom);
sb.AppendLine();
sb.Append("\tCurrent display mode: ");
// if there is a display mode - write its information and add it in the list of available modes
var currentDisplayMode = output.CurrentDisplayMode;
if (currentDisplayMode != null)
{
if (availableModes.Count < 10)
{
var modeInfo = new ModeInfo(adapter, i, true, desktopBounds.Width, desktopBounds.Height);
availableModes.Add(modeInfo);
}
sb.AppendFormat("{0}x{1}@{2}, {3}",
currentDisplayMode.Width,
currentDisplayMode.Height,
currentDisplayMode.RefreshRate.Numerator / currentDisplayMode.RefreshRate.Denominator,
currentDisplayMode.Format);
}
else
{
sb.Append("null");
}
sb.AppendLine();
}
}