Conditionally compile Windows code, make Throttle class portable, and add dummy input/audio implementations for non-Windows

This is (almost, bar some local resource hacks) enough to start the
emulator on Linux/Mono, load a ROM and watch the demo (input and
audio don't work yet).

BizHawk.MultiClient/BizHawk.MultiClient.csproj

@@ -35,13 +35,14 @@
     <UseApplicationTrust>false</UseApplicationTrust>
     <BootstrapperEnabled>true</BootstrapperEnabled>
     <TargetFrameworkProfile />
+    <DefineConstants Condition=" '$(OS)' == 'Windows_NT' ">WINDOWS</DefineConstants>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
     <DebugType>full</DebugType>
     <Optimize>false</Optimize>
     <OutputPath>output\</OutputPath>
-    <DefineConstants>DEBUG</DefineConstants>
+    <DefineConstants>$(DefineConstants);DEBUG</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <PlatformTarget>x86</PlatformTarget>
@@ -53,8 +54,6 @@
     <DebugType>pdbonly</DebugType>
     <Optimize>true</Optimize>
     <OutputPath>output\</OutputPath>
-    <DefineConstants>
-    </DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <PlatformTarget>x86</PlatformTarget>
@@ -66,11 +65,11 @@
     <NoWin32Manifest>true</NoWin32Manifest>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="LuaInterface, Version=2.0.0.16708, Culture=neutral, processorArchitecture=x86">
+    <Reference Include="LuaInterface, Version=2.0.0.16708, Culture=neutral, processorArchitecture=x86" Condition=" '$(OS)' == 'Windows_NT' ">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>.\LuaInterface.dll</HintPath>
     </Reference>
-    <Reference Include="Microsoft.VisualBasic" />
+    <Reference Include="Microsoft.VisualBasic" Condition=" '$(OS)' == 'Windows_NT' " />
     <Reference Include="Newtonsoft.Json, Version=1.3.0.0, Culture=neutral, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\Newtonsoft.Json.dll</HintPath>
@@ -86,11 +85,11 @@
       <RequiredTargetFramework>3.5</RequiredTargetFramework>
     </Reference>
     <Reference Include="System.Data" />
-    <Reference Include="System.Deployment" />
+    <Reference Include="System.Deployment" Condition=" '$(OS)' == 'Windows_NT' " />
     <Reference Include="System.Drawing" />
     <Reference Include="System.Windows.Forms" />
     <Reference Include="System.Xml" />
-    <Reference Include="SlimDX, Version=2.0.10.43, Culture=neutral, PublicKeyToken=b1b0c32fd1ffe4f9">
+    <Reference Include="SlimDX, Version=2.0.10.43, Culture=neutral, PublicKeyToken=b1b0c32fd1ffe4f9" Condition=" '$(OS)' == 'Windows_NT' ">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\SlimDX.dll</HintPath>
     </Reference>
@@ -166,7 +165,7 @@
     <Compile Include="Global.cs" />
     <Compile Include="HawkFile.cs" />
     <Compile Include="Input\ControllerBinding.cs" />
-    <Compile Include="Input\GamePad.cs" />
+    <Compile Include="Input\GamePad.cs" Condition=" '$(OS)' == 'Windows_NT' " />
     <Compile Include="Input\Input.cs" />
     <Compile Include="LogConsole.cs" />
     <Compile Include="LogWindow.cs">
@@ -185,8 +184,8 @@
       <DependentUpon>EditCommentsForm.cs</DependentUpon>
     </Compile>
     <Compile Include="movie\InputAdapters.cs" />
-    <Compile Include="Input\Keyboard.cs" />
+    <Compile Include="Input\Keyboard.cs" Condition=" '$(OS)' == 'Windows_NT' " />
-    <Compile Include="LuaImplementation.cs" />
+    <Compile Include="LuaImplementation.cs" Condition=" '$(OS)' == 'Windows_NT' " />
     <Compile Include="MainForm.cs">
       <SubType>Form</SubType>
     </Compile>
@@ -373,18 +372,18 @@
     <Compile Include="tools\HexEditor.Designer.cs">
       <DependentUpon>HexEditor.cs</DependentUpon>
     </Compile>
-    <Compile Include="tools\LuaConsole.cs">
+    <Compile Include="tools\LuaConsole.cs" Condition=" '$(OS)' == 'Windows_NT' ">
       <SubType>Form</SubType>
     </Compile>
-    <Compile Include="tools\LuaConsole.Designer.cs">
+    <Compile Include="tools\LuaConsole.Designer.cs" Condition=" '$(OS)' == 'Windows_NT' ">
       <DependentUpon>LuaConsole.cs</DependentUpon>
     </Compile>
-    <Compile Include="tools\LuaFiles.cs" />
+    <Compile Include="tools\LuaFiles.cs" Condition=" '$(OS)' == 'Windows_NT' " />
-    <Compile Include="tools\LuaText.cs" />
+    <Compile Include="tools\LuaText.cs" Condition=" '$(OS)' == 'Windows_NT' " />
-    <Compile Include="tools\LuaWindow.cs">
+    <Compile Include="tools\LuaWindow.cs" Condition=" '$(OS)' == 'Windows_NT' ">
       <SubType>Form</SubType>
     </Compile>
-    <Compile Include="tools\LuaWindow.Designer.cs">
+    <Compile Include="tools\LuaWindow.Designer.cs" Condition=" '$(OS)' == 'Windows_NT' ">
       <DependentUpon>LuaWindow.cs</DependentUpon>
     </Compile>
     <Compile Include="tools\MemoryViewer.cs">

BizHawk.MultiClient/Global.cs

@@ -1,15 +1,19 @@
 using BizHawk.DiscSystem;
 using System.Collections.Generic;
+#if WINDOWS
 using SlimDX.Direct3D9;
 using SlimDX.DirectSound;
+#endif
 
 namespace BizHawk.MultiClient
 {
 	public static class Global
 	{
 		public static MainForm MainForm;
+#if WINDOWS
 		public static DirectSound DSound;
 		public static Direct3D Direct3D;
+#endif
 		public static Sound Sound;
 		public static IRenderer RenderPanel;
 		public static Config Config;

BizHawk.MultiClient/Input/Input.cs

@@ -3,7 +3,9 @@ using System.Linq;
 using System.Collections.Generic;
 using System.Threading;
 using System.Windows.Forms;
+#if WINDOWS
 using SlimDX.DirectInput;
+#endif
 
 namespace BizHawk.MultiClient
 {
@@ -54,15 +56,19 @@ namespace BizHawk.MultiClient
 
 		private Input()
 		{
+#if WINDOWS
 			UpdateThread = new Thread(UpdateThreadProc);
 			UpdateThread.IsBackground = true;
 			UpdateThread.Start();
+#endif
 		}
 
 		public static void Initialize()
 		{
+#if WINDOWS
 			KeyInput.Initialize();
 			GamePad.Initialize();
+#endif
 			Instance = new Input();
 		}
 
@@ -192,6 +198,7 @@ namespace BizHawk.MultiClient
 			}
 		}
 
+#if WINDOWS
 		void UpdateThreadProc()
 		{
 			for (; ; )
@@ -241,7 +248,7 @@ namespace BizHawk.MultiClient
 				Thread.Sleep(10);
 			}
 		}
-
+#endif
 
 		public void Update()
 		{

BizHawk.MultiClient/MainForm.cs

@@ -63,7 +63,9 @@ namespace BizHawk.MultiClient
 		public ToolBox ToolBox1 = new ToolBox();
 		public TI83KeyPad TI83KeyPad1 = new TI83KeyPad();
 		public TAStudio TAStudio1 = new TAStudio();
+#if WINDOWS
 		public LuaConsole LuaConsole1 = new LuaConsole();
+#endif
 
 		public MainForm(string[] args)
 		{
@@ -139,7 +141,11 @@ namespace BizHawk.MultiClient
 			Global.Emulator = new NullEmulator();
 			Global.ActiveController = Global.NullControls;
 			Global.AutoFireController = Global.AutofireNullControls;
+#if WINDOWS
 			Global.Sound = new Sound(Handle, Global.DSound);
+#else
+			Global.Sound = new Sound();
+#endif
 			Global.Sound.StartSound();
 			RewireInputChain();
 			//TODO - replace this with some kind of standard dictionary-yielding parser in a separate component
@@ -262,10 +268,12 @@ namespace BizHawk.MultiClient
 
 		void SyncPresentationMode()
 		{
+#if WINDOWS
 			bool gdi = Global.Config.DisplayGDI;
 
 			if (Global.Direct3D == null)
 				gdi = true;
+#endif
 
 			if (renderTarget != null)
 			{
@@ -276,19 +284,26 @@ namespace BizHawk.MultiClient
 			if (retainedPanel != null) retainedPanel.Dispose();
 			if (Global.RenderPanel != null) Global.RenderPanel.Dispose();
 
+#if WINDOWS
 			if (gdi)
+#endif
 				renderTarget = retainedPanel = new RetainedViewportPanel();
+#if WINDOWS
 			else renderTarget = new ViewportPanel();
+#endif
 			Controls.Add(renderTarget);
 			Controls.SetChildIndex(renderTarget, 0);
 
 			renderTarget.Dock = DockStyle.Fill;
 			renderTarget.BackColor = Color.Black;
 
+#if WINDOWS
 			if (gdi)
 			{
+#endif
 				Global.RenderPanel = new SysdrawingRenderPanel(retainedPanel);
 				retainedPanel.ActivateThreaded();
+#if WINDOWS
 			}
 			else
 			{
@@ -306,6 +321,7 @@ namespace BizHawk.MultiClient
 					SyncPresentationMode();
 				}
 			}
+#endif
 		}
 
 		void SyncThrottle()
@@ -1163,7 +1179,9 @@ namespace BizHawk.MultiClient
 				TAStudio1.Restart();
 				Cheats1.Restart();
 				ToolBox1.Restart();
+#if WINDOWS
 				LuaConsole1.Restart();
+#endif
 
 				if (Global.Config.LoadCheatFileByGame)
 				{
@@ -1648,6 +1666,7 @@ namespace BizHawk.MultiClient
 			{
 				Global.RenderPanel.ClearGUIText();
 				//client input-related duties
+#if WINDOWS
 				if (LuaConsole1.IsRunning())
 				{
 					LuaConsole1.WaitOne();
@@ -1657,6 +1676,7 @@ namespace BizHawk.MultiClient
 				{
 					Global.MainForm.MainWait.Set();
 				}
+#endif
 
 				runloop_fps++;
 				bool ff = Global.ClientControls["Fast Forward"];
@@ -2255,7 +2275,9 @@ namespace BizHawk.MultiClient
 			TI83KeyPad1.Restart();
 			Cheats1.Restart();
 			ToolBox1.Restart();
+#if WINDOWS
 			LuaConsole1.Restart();
+#endif
 			Text = "BizHawk" + (INTERIM ? " (interim) " : "");
 			HandlePlatformMenus();
 			StateSlots.Clear();
@@ -2283,7 +2305,9 @@ namespace BizHawk.MultiClient
 			CloseForm(Cheats1);
 			CloseForm(TI83KeyPad1);
 			CloseForm(TAStudio1);
+#if WINDOWS
 			CloseForm(LuaConsole1);
+#endif
 			if (Global.Config.ShowLogWindow) LogConsole.SaveConfigSettings();
 			ConfigService.Save(PathManager.DefaultIniPath, Global.Config);
 		}
@@ -2537,6 +2561,7 @@ namespace BizHawk.MultiClient
 
 		public void OpenLuaConsole()
 		{
+#if WINDOWS
 			if (!LuaConsole1.IsHandleCreated || LuaConsole1.IsDisposed)
 			{
 				LuaConsole1 = new LuaConsole();
@@ -2544,6 +2569,9 @@ namespace BizHawk.MultiClient
 			}
 			else
 				LuaConsole1.Focus();
+#else
+			MessageBox.Show("Sorry, Lua is not supported on this platform.", "Lua not supported", MessageBoxButtons.OK, MessageBoxIcon.Error);
+#endif
 		}
 
 		public void OpenGameboyDebugger()

BizHawk.MultiClient/Program.cs

@@ -1,8 +1,10 @@
 using System;
 using System.Windows.Forms;
+#if WINDOWS
 using SlimDX.Direct3D9;
 using SlimDX.DirectSound;
 using Microsoft.VisualBasic.ApplicationServices;
+#endif
 
 namespace BizHawk.MultiClient
 {
@@ -16,6 +18,7 @@ namespace BizHawk.MultiClient
 
 			Global.Config = ConfigService.Load<Config>(PathManager.DefaultIniPath);
 
+#if WINDOWS
 			try { Global.DSound = new DirectSound(); }
 			catch
 			{
@@ -29,9 +32,11 @@ namespace BizHawk.MultiClient
 				if (!Global.Config.DisplayGDI)
 					DisplayDirect3DError();
 			}
+#endif
 
 			try
 			{
+#if WINDOWS
 				if (Global.Config.SingleInstanceMode)
 				{
 					SingleInstanceController controller = new SingleInstanceController(args);
@@ -39,17 +44,21 @@ namespace BizHawk.MultiClient
 				}
 				else
 				{
+#endif
 					var mf = new MainForm(args);
 					var title = mf.Text;
 					mf.Show();
 					mf.Text = title;
 					mf.ProgramRunLoop();
+#if WINDOWS
 				}
+#endif 
 			}
 			catch (Exception e)
 			{
 				MessageBox.Show(e.ToString(), "Oh, no, a terrible thing happened!\n\n" + e.ToString());
 			}
+#if WINDOWS
 			finally
 			{
 				if (Global.DSound != null && Global.DSound.Disposed == false)
@@ -57,9 +66,10 @@ namespace BizHawk.MultiClient
 				if (Global.Direct3D != null && Global.Direct3D.Disposed == false)
 					Global.Direct3D.Dispose();
 			}
-
+#endif
 		}
 
+#if WINDOWS
 		public class SingleInstanceController : WindowsFormsApplicationBase
 		{
 			MainForm mf;
@@ -92,5 +102,6 @@ namespace BizHawk.MultiClient
 		{
 			MessageBox.Show("Failure to initialize Direct3D, reverting to GDI+ display method. Change the option in Config > GUI or install DirectX web update.", "Initialization Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
 		}
+#endif
 	}
 }

BizHawk.MultiClient/RenderPanel.cs

@@ -7,13 +7,16 @@ using System.IO;
 using System.Threading;
 using System.Text;
 using System.Windows.Forms;
+#if WINDOWS
 using SlimDX;
 using SlimDX.Direct3D9;
 using Font = SlimDX.Direct3D9.Font;
+#endif
 using BizHawk.Core;
 
 namespace BizHawk.MultiClient
 {
+#if WINDOWS
 	public class ImageTexture : IDisposable
 	{
 		public Device GraphicsDevice;
@@ -105,6 +108,7 @@ namespace BizHawk.MultiClient
 			}
 		}
 	}
+#endif
 
 	public interface IRenderer : IDisposable
 	{
@@ -148,7 +152,7 @@ namespace BizHawk.MultiClient
 		public void ClearGUIText() { }
 	}
 
-
+#if WINDOWS
 	public class Direct3DRenderPanel : IRenderer
 	{
 		public Color BackgroundColor { get; set; }
@@ -546,6 +550,7 @@ namespace BizHawk.MultiClient
 				return "";
 		}
 	}
+#endif
 
 	class UIMessage
 	{

BizHawk.MultiClient/Sound.cs

@@ -1,12 +1,15 @@
 using System;
 using BizHawk.Emulation.Sound;
+#if WINDOWS
 using SlimDX.DirectSound;
 using SlimDX.Multimedia;
+#endif
 
 using BizHawk.Emulation.Consoles.Nintendo;
 
 namespace BizHawk.MultiClient
 {
+#if WINDOWS
 	public class Sound : IDisposable
 	{
 		public bool Muted = false;
@@ -192,4 +195,65 @@ namespace BizHawk.MultiClient
 			}
 		}
 	}
+#else
+	// Dummy implementation for non-Windows platforms for now.
+	public class Sound
+	{
+		public bool Muted = false;
+		public bool needDiscard;
+
+		public Sound()
+		{
+		}
+
+		public void StartSound()
+		{
+		}
+
+		public bool IsPlaying = false;
+
+		public void StopSound()
+		{
+		}
+
+		public void Dispose()
+		{
+		}
+
+		int SNDDXGetAudioSpace()
+		{
+			return 0;
+		}
+
+		public void UpdateSound(ISoundProvider soundProvider)
+		{
+			soundProvider.DiscardSamples();
+		}
+
+		/// <summary>
+		/// Range: 0-100
+		/// </summary>
+		/// <param name="vol"></param>
+		public void ChangeVolume(int vol)
+		{
+			Global.Config.SoundVolume = vol;
+			UpdateSoundSettings();
+		}
+
+		/// <summary>
+		/// Uses Global.Config.SoundEnabled, this just notifies the object to read it
+		/// </summary>
+		public void UpdateSoundSettings()
+		{
+			if (Global.Emulator is NES)
+			{
+				NES n = Global.Emulator as NES;
+				if (Global.Config.SoundEnabled == false)
+					n.SoundOn = false;
+				else
+					n.SoundOn = true;
+			}
+		}
+	}
+#endif
 }

BizHawk.MultiClient/Throttle.cs

@@ -102,6 +102,7 @@ namespace BizHawk.MultiClient
 
 		static ulong GetCurTime()
 		{
+#if WINDOWS
 			if (tmethod == 1)
 			{
 				ulong tmp;
@@ -110,13 +111,15 @@ namespace BizHawk.MultiClient
 			}
 			else
 			{
-				return (ulong)GetTickCount();
+#endif
+				return (ulong)Environment.TickCount;
+#if WINDOWS
 			}
+#endif
 		}
 
-		[DllImport("kernel32.dll")]
-		static extern uint GetTickCount();
 
+#if WINDOWS
 		[DllImport("kernel32.dll", SetLastError = true)]
 		static extern bool QueryPerformanceCounter(out ulong lpPerformanceCount);
 
@@ -129,15 +132,15 @@ namespace BizHawk.MultiClient
 		[DllImport("winmm.dll", EntryPoint = "timeBeginPeriod")]
 		static extern uint timeBeginPeriod(uint uMilliseconds);
 
-		[DllImport("kernel32.dll")]
-		static extern bool SwitchToThread();
-
 		static int tmethod;
+#endif
+
 		static ulong afsfreq;
 		static ulong tfreq;
 
 		static Throttle()
 		{
+#if WINDOWS
 			timeBeginPeriod(1);
 			tmethod = 0;
 			if (QueryPerformanceFrequency(out afsfreq))
@@ -145,6 +148,9 @@ namespace BizHawk.MultiClient
 			else
 				afsfreq = 1000;
 			Console.WriteLine("throttle method: {0}; resolution: {1}", tmethod, afsfreq);
+#else
+			afsfreq = 1000;
+#endif
 			tfreq = afsfreq << 16;
 		}
 
@@ -323,7 +329,7 @@ namespace BizHawk.MultiClient
 				}
 				else if (sleepy > 0) // spin for <1 millisecond waits
 				{
-					SwitchToThread(); // limit to other threads on the same CPU core for other short waits
+					Thread.Yield(); // limit to other threads on the same CPU core for other short waits
 				}
 				goto waiter;
 			}