Opentk/Source/OpenTK/Configuration.cs

126 lines
4.4 KiB
C#

#region --- License ---
/* Licensed under the MIT/X11 license.
* Copyright (c) 2006-2008 the OpenTK Team.
* This notice may not be removed from any source distribution.
* See license.txt for licensing detailed licensing details.
*/
#endregion
using System;
using System.Collections.Generic;
using System.Text;
using System.Diagnostics;
using System.IO;
namespace OpenTK
{
/// <internal />
/// <summary>Contains configuration options for OpenTK.</summary>
internal static class Configuration
{
static bool runningOnWindows, runningOnX11, runningOnOSX;
#region --- Constructors ---
static Configuration()
{
if (System.Environment.OSVersion.Platform == PlatformID.Win32NT ||
System.Environment.OSVersion.Platform == PlatformID.Win32S ||
System.Environment.OSVersion.Platform == PlatformID.Win32Windows ||
System.Environment.OSVersion.Platform == PlatformID.WinCE)
runningOnWindows = true;
else if (System.Environment.OSVersion.Platform == PlatformID.Unix ||
System.Environment.OSVersion.Platform == (PlatformID)4)
{
// Distinguish between Unix and Mac OS X kernels.
switch (DetectUnixKernel())
{
case "Unix":
case "Linux":
runningOnX11 = true;
break;
case "Darwin":
runningOnOSX = true;
break;
default:
throw new PlatformNotSupportedException(
DetectUnixKernel() + ": Unknown Unix platform. Please report this error at http://www.opentk.com.");
}
}
else
throw new PlatformNotSupportedException("Unknown platform. Please report this error at http://www.opentk.com.");
}
#endregion
#region --- Public Methods ---
#region internal static bool RunningOnWindows
/// <summary>Gets a System.Boolean indicating whether OpenTK is running on a Windows platform.</summary>
internal static bool RunningOnWindows { get { return runningOnWindows; } }
#endregion
#region internal static bool RunningOnX11
/// <summary>Gets a System.Boolean indicating whether OpenTK is running on an X11 platform.</summary>
internal static bool RunningOnX11 { get { return runningOnX11; } }
#endregion
#region internal static bool RunningOnOSX
/// <summary>Gets a System.Boolean indicating whether OpenTK is running on an OSX platform.</summary>
internal static bool RunningOnOSX { get { return runningOnOSX; } }
#endregion
#region --- Private Methods ---
#region private static string DetectUnixKernel()
/// <summary>
/// Executes "uname" which returns a string representing the name of the
/// underlying Unix kernel.
/// </summary>
/// <returns>"Unix", "Linux", "Darwin" or null.</returns>
/// <remarks>Source code from "Mono: A Developer's Notebook"</remarks>
private static string DetectUnixKernel()
{
ProcessStartInfo startInfo = new ProcessStartInfo();
startInfo.Arguments = "-s";
startInfo.RedirectStandardOutput = true;
startInfo.RedirectStandardError = true;
startInfo.UseShellExecute = false;
foreach (string unameprog in new string[] { "/usr/bin/uname", "/bin/uname", "uname" })
{
try
{
startInfo.FileName = unameprog;
Process uname = Process.Start(startInfo);
StreamReader stdout = uname.StandardOutput;
return stdout.ReadLine().Trim();
}
catch (System.IO.FileNotFoundException)
{
// The requested executable doesn't exist, try next one.
continue;
}
catch (System.ComponentModel.Win32Exception)
{
continue;
}
}
return null;
}
#endregion
#endregion
#endregion
}
}