- refactored the MIDI list code.

Let's hope nothing got broken on the Linux side, the recent submission's code was not usable.

libraries/zmusic/mididevices/music_alsa_state.cpp

@@ -130,21 +130,19 @@ int AlsaSequencer::EnumerateDevices() {
 			if (!filter(pinfo)) {
 				continue;
 			}
-			externalDevices.emplace_back();
 			internalDevices.emplace_back();
 
-			auto & item = externalDevices.back();
 			auto & itemInternal = internalDevices.back();
-			itemInternal.ID = item.ID = index++;
+			itemInternal.ID = index++;
 			const char *name = snd_seq_port_info_get_name(pinfo);
 			int portNumber = snd_seq_port_info_get_port(pinfo);
 			if(!name) {
 				std::ostringstream out;
 				out << "MIDI Port " << clientID << ":" << portNumber;
-				itemInternal.Name = item.Name = out.str();
+				itemInternal.Name = out.str();
 			}
 			else {
-				itemInternal.Name = item.Name = name;
+				itemInternal.Name = name;
 			}
 			itemInternal.ClientID = clientID;
 			itemInternal.PortNumber = portNumber;
@@ -159,8 +157,4 @@ const std::vector<MidiOutDeviceInternal> & AlsaSequencer::GetInternalDevices()
 	return internalDevices;
 }
 
-const std::vector<MidiOutDevice> & AlsaSequencer::GetDevices() {
-	return externalDevices;
-}
-
 #endif

libraries/zmusic/mididevices/music_alsa_state.h

@@ -65,7 +65,6 @@ public:
 	}
 
 	int EnumerateDevices();
-	const std::vector<MidiOutDevice> &GetDevices();
 	const std::vector<MidiOutDeviceInternal> &GetInternalDevices();
 
 	snd_seq_t *handle = nullptr;
@@ -75,7 +74,6 @@ public:
 
 private:
 	std::vector<MidiOutDeviceInternal> internalDevices;
-	std::vector<MidiOutDevice> externalDevices;
 };
 
 #endif

libraries/zmusic/zmusic/configuration.cpp

@@ -31,6 +31,11 @@
 **---------------------------------------------------------------------------
 **
 */
+
+#ifdef _WIN32
+#include <Windows.h>
+#include <mmsystem.h>
+#endif
 #include <algorithm>
 #include "timidity/timidity.h"
 #include "timiditypp/timidity.h"
@@ -140,22 +145,85 @@ int ZMusic_EnumerateMidiDevices()
 #endif
 }
 
-#if 0
-const std::vector<MidiOutDevice> &ZMusic_GetMidiDevices()
+
+struct MidiDeviceList
 {
+	std::vector<MidiOutDevice> devices;
+	~MidiDeviceList()
+	{
+		for (auto& device : devices)
+		{
+			free(device.Name);
+		}
+	}
+	void Build()
+	{
+#ifdef HAVE_OPN
+		devices.push_back({ strdup("libOPN"), -8, MIDIDEV_FMSYNTH });
+#endif
+#ifdef HAVE_ADL
+		devices.push_back({ strdup("libADL"), -7, MIDIDEV_FMSYNTH });
+#endif
+#ifdef HAVE_WILDMIDI
+		devices.push_back({ strdup("WildMidi"), -6, MIDIDEV_SWSYNTH });
+#endif
+#ifdef HAVE_FLUIDSYNTH
+		devices.push_back({ strdup("FluidSynth"), -5, MIDIDEV_SWSYNTH });
+#endif
+#ifdef HAVE_GUS
+		devices.push_back({ strdup("GUS Emulation"), -4, MIDIDEV_SWSYNTH });
+#endif
+#ifdef HAVE_OPL
+		devices.push_back({ strdup("OPL Synth Emulation"), -3, MIDIDEV_FMSYNTH });
+#endif
+#ifdef HAVE_TIMIDITY
+		devices.push_back({ strdup("TiMidity++"), -2, MIDIDEV_SWSYNTH });
+#endif
+
 #ifdef HAVE_SYSTEM_MIDI
-	#ifdef __linux__
-		auto & sequencer = AlsaSequencer::Get();
-		return sequencer.GetDevices();
-	#elif _WIN32
-		// TODO: move the weird stuff from music_midi_base.cpp here, or at least to this lib and call it here
-		return {};
-	#endif
-#else
-	return {};
+#ifdef __linux__
+		auto& sequencer = AlsaSequencer::Get();
+		auto& dev = sequencer.GetDevices();
+		for (auto& d : dev)
+		{
+			MidiOutDevice mdev = { strdup(d.Name.c_str()), d.ID, MIDIDEV_MAPPER };	// fixme: Correctly determine the type of the device.
+			devices.push_back(mdev);
+		}
+#elif _WIN32
+		UINT nummididevices = midiOutGetNumDevs();
+		for (uint32_t id = 0; id < nummididevices; ++id)
+		{
+			MIDIOUTCAPSW caps;
+			MMRESULT res;
+
+			res = midiOutGetDevCapsW(id, &caps, sizeof(caps));
+			if (res == MMSYSERR_NOERROR)
+			{
+				auto len = wcslen(caps.szPname);
+				int size_needed = WideCharToMultiByte(CP_UTF8, 0, caps.szPname, (int)len, nullptr, 0, nullptr, nullptr);
+				char* outbuf = (char*)malloc(size_needed + 1);
+				WideCharToMultiByte(CP_UTF8, 0, caps.szPname, (int)len, outbuf, size_needed, nullptr, nullptr);
+				outbuf[size_needed] = 0;
+
+				MidiOutDevice mdev = { outbuf, id, caps.wTechnology };
+				devices.push_back(mdev);
+			}
+		}
 #endif
+#endif
+	}
+
+};
+
+static MidiDeviceList devlist;
+
+DLL_EXPORT const MidiOutDevice* ZMusic_GetMidiDevices(int* pAmount)
+{
+	if (devlist.devices.size() == 0) devlist.Build();
+	if (pAmount) *pAmount = (int)devlist.devices.size();
+	return devlist.devices.data();
 }
-#endif
+
 
 
 template<class valtype>

libraries/zmusic/zmusic/zmusic.h

@@ -189,6 +189,13 @@ struct ZMusicCustomReader
 	void (*close)(struct ZMusicCustomReader* handle);
 };
 
+struct MidiOutDevice 
+{
+	char *Name;
+	int ID;
+	int Technology;
+};
+
 struct Callbacks
 {
 	// Callbacks the client can install to capture messages from the backends
@@ -288,7 +295,7 @@ extern "C"
 	DLL_IMPORT void FindLoopTags(const uint8_t* data, size_t size, uint32_t* start, bool* startass, uint32_t* end, bool* endass);
 	// The rest of the decoder interface is only useful for streaming music. 
 
-
+	DLL_IMPORT const MidiOutDevice *ZMusic_GetMidiDevices(int *pAmount);
 
 #ifdef __cplusplus
 }

src/sound/music/i_music.cpp

@@ -68,8 +68,6 @@ int		nomusic = 0;
 
 #ifdef _WIN32
 
-void I_InitMusicWin32();
-
 #include "musicformats/win32/i_cd.h"
 //==========================================================================
 //
@@ -274,12 +272,6 @@ void I_InitMusic (void)
 
 	nomusic = !!Args->CheckParm("-nomusic") || !!Args->CheckParm("-nosound");
 
-// TODO: remove, move functionality to ZMusic_EnumerateMidiDevices
-#ifdef _WIN32
-	I_InitMusicWin32 ();
-#endif // _WIN32
-
-	//ZMusic_EnumerateMidiDevices();
 	snd_mididevice.Callback();
 	
 	Callbacks callbacks{};

src/sound/music/music_midi_base.cpp

@@ -3,6 +3,7 @@
 **
 **---------------------------------------------------------------------------
 ** Copyright 1998-2010 Randy Heit
+** Copyright 2005-2020 Christoph Oelckers
 ** All rights reserved.
 **
 ** Redistribution and use in source and binary forms, with or without
@@ -31,13 +32,6 @@
 **
 */
 
-#ifdef _WIN32
-
-#define WIN32_LEAN_AND_MEAN
-#include <windows.h>
-#include <mmsystem.h>
-#endif
-
 #include "c_dispatch.h"
 
 #include "v_text.h"
@@ -48,54 +42,17 @@
 #define DEF_MIDIDEV -5
 
 EXTERN_CVAR(Int, snd_mididevice)
-static uint32_t	nummididevices;
 
-#define NUM_DEF_DEVICES 7
-
-static void AddDefaultMidiDevices(FOptionValues *opt)
+void I_BuildMIDIMenuList(FOptionValues* opt)
 {
-	FOptionValues::Pair *pair = &opt->mValues[opt->mValues.Reserve(NUM_DEF_DEVICES)];
-	pair[0].Text = "FluidSynth";
-	pair[0].Value = -5.0;
-	pair[1].Text = "TiMidity++";
-	pair[1].Value = -2.0;
-	pair[2].Text = "WildMidi";
-	pair[2].Value = -6.0;
-	pair[3].Text = "GUS";
-	pair[3].Value = -4.0;
-	pair[4].Text = "OPL Synth Emulation";
-	pair[4].Value = -3.0;
-	pair[5].Text = "libADL";
-	pair[5].Value = -7.0;
-	pair[6].Text = "libOPN";
-	pair[6].Value = -8.0;
+	int amount;
+	auto list = ZMusic_GetMidiDevices(&amount);
 
-}
-
-#ifdef _WIN32
-
-void I_InitMusicWin32 ()
-{
-	nummididevices = midiOutGetNumDevs ();
-}
-
-void I_BuildMIDIMenuList (FOptionValues *opt)
-{
-	AddDefaultMidiDevices(opt);
-
-	for (uint32_t id = 0; id < nummididevices; ++id)
+	for (int i = 0; i < amount; i++)
 	{
-		MIDIOUTCAPS caps;
-		MMRESULT res;
-
-		res = midiOutGetDevCaps (id, &caps, sizeof(caps));
-		assert(res == MMSYSERR_NOERROR);
-		if (res == MMSYSERR_NOERROR)
-		{
-			FOptionValues::Pair *pair = &opt->mValues[opt->mValues.Reserve(1)];
-			pair->Text = caps.szPname;
-			pair->Value = (float)id;
-		}
+		FOptionValues::Pair* pair = &opt->mValues[opt->mValues.Reserve(1)];
+		pair->Text = list[i].Name;
+		pair->Value = (float)list[i].ID;
 	}
 }
 
@@ -116,112 +73,44 @@ static void PrintMidiDevice (int id, const char *name, uint16_t tech, uint32_t s
 	case MIDIDEV_WAVETABLE:		Printf ("WAVETABLE");		break;
 	case MIDIDEV_SWSYNTH:		Printf ("SWSYNTH");			break;
 	}
-	if (support & MIDICAPS_CACHE)
-	{
-		Printf (" CACHE");
-	}
-	if (support & MIDICAPS_LRVOLUME)
-	{
-		Printf (" LRVOLUME");
-	}
-	if (support & MIDICAPS_STREAM)
-	{
-		Printf (" STREAM");
-	}
-	if (support & MIDICAPS_VOLUME)
-	{
-		Printf (" VOLUME");
-	}
 	Printf (TEXTCOLOR_NORMAL "\n");
 }
 
 CCMD (snd_listmididevices)
 {
-	UINT id;
-	MIDIOUTCAPS caps;
-	MMRESULT res;
+	int amount;
+	auto list = ZMusic_GetMidiDevices(&amount);
 
-	PrintMidiDevice(-8, "libOPN", MIDIDEV_FMSYNTH, 0);
-	PrintMidiDevice(-7, "libADL", MIDIDEV_FMSYNTH, 0);
-	PrintMidiDevice (-6, "WildMidi", MIDIDEV_SWSYNTH, 0);
-	PrintMidiDevice (-5, "FluidSynth", MIDIDEV_SWSYNTH, 0);
-	PrintMidiDevice (-4, "Gravis Ultrasound Emulation", MIDIDEV_SWSYNTH, 0);
-	PrintMidiDevice (-3, "Emulated OPL FM Synth", MIDIDEV_FMSYNTH, 0);
-	PrintMidiDevice (-2, "TiMidity++", MIDIDEV_SWSYNTH, 0);
-	if (nummididevices != 0)
+	for (int i = 0; i < amount; i++)
 	{
-		for (id = 0; id < nummididevices; ++id)
-		{
-			FString text;
-			res = midiOutGetDevCaps (id, &caps, sizeof(caps));
-			if (res == MMSYSERR_NODRIVER)
-				text = "<Driver not installed>";
-			else if (res == MMSYSERR_NOMEM)
-				text = "<No memory for description>";
-			else if (res == MMSYSERR_NOERROR)
-				text = caps.szPname;
-			else
-				continue;
-
-			PrintMidiDevice (id, text, caps.wTechnology, caps.dwSupport);
-		}
+		PrintMidiDevice(list[i].ID, list[i].Name, list[i].Technology, 0);
 	}
 }
-#else // _WIN32
-
-void I_BuildMIDIMenuList (FOptionValues *opt)
-{
-	AddDefaultMidiDevices(opt);
-#if 0
-	auto devices = ZMusic_GetMidiDevices();
-
-	for (auto & device: devices)
-	{
-		FOptionValues::Pair *pair = &opt->mValues[opt->mValues.Reserve(1)];
-		pair->Text = device.Name.c_str();
-		pair->Value = (float)device.ID;
-	}
-#endif
-}
-
-CCMD (snd_listmididevices)
-{
-	Printf("%s-8. libOPN\n", -8 == snd_mididevice ? TEXTCOLOR_BOLD : "");
-	Printf("%s-7. libADL\n", -7 == snd_mididevice ? TEXTCOLOR_BOLD : "");
-	Printf("%s-6. WildMidi\n", -6 == snd_mididevice ? TEXTCOLOR_BOLD : "");
-	Printf("%s-5. FluidSynth\n", -5 == snd_mididevice ? TEXTCOLOR_BOLD : "");
-	Printf("%s-4. Gravis Ultrasound Emulation\n", -4 == snd_mididevice ? TEXTCOLOR_BOLD : "");
-	Printf("%s-3. Emulated OPL FM Synth\n", -3 == snd_mididevice ? TEXTCOLOR_BOLD : "");
-	Printf("%s-2. TiMidity++\n", -2 == snd_mididevice ? TEXTCOLOR_BOLD : "");
-#if 0
-	auto devices = ZMusic_GetMidiDevices();
-
-	for (auto & device: devices)
-	{
-		Printf("%s%d. %s\n", -2 == snd_mididevice ? TEXTCOLOR_BOLD : "", device.ID, device.Name.c_str());
-	}
-#endif
-}
-#endif
 
 
 CUSTOM_CVAR (Int, snd_mididevice, DEF_MIDIDEV, CVAR_ARCHIVE|CVAR_GLOBALCONFIG|CVAR_NOINITCALL)
 {
-	//auto devices = ZMusic_GetMidiDevices();
-	//if ((self >= (signed)devices.size()) || (self < -8))
-	if ((self >= (signed)nummididevices) || (self < -8))
+	int amount;
+	auto list = ZMusic_GetMidiDevices(&amount);
+
+	bool found = false;
+	// The list is not necessarily contiguous so we need to check each entry.
+	for (int i = 0; i < amount; i++)
+	{
+		if (self == list[i].ID)
+		{
+			found = true;
+			break;
+		}
+	}
+	if (!found)
 	{
 		// Don't do repeated message spam if there is no valid device.
-		if (self != 0)
+		if (self != 0 && self != -1)
 		{
 			Printf("ID out of range. Using default device.\n");
 		}
-		self = DEF_MIDIDEV;
-		return;
-	}
-	else if (self == -1)
-	{
-		self = DEF_MIDIDEV;
+		if (self != DEF_MIDIDEV) self = DEF_MIDIDEV;
 		return;
 	}
 	bool change = ChangeMusicSetting(zmusic_snd_mididevice, nullptr, self);