-Add: MIDI using Munt MT32 emulator

config.lib

@@ -43,6 +43,7 @@ set_default() {
 	with_sdl2="1"
 	with_asound="1"
 	with_pulse="1"
+	with_munt="1"
 	enable_builtin_depend="1"
 	with_makedepend="0"
 	with_sort="1"
@@ -79,6 +80,7 @@ set_default() {
 		with_sdl2
 		with_asound
 		with_pulse
+		with_munt
 		enable_builtin_depend
 		with_makedepend
 		with_sort
@@ -190,6 +192,10 @@ detect_params() {
 			--without-pulse)              with_pulse="0";;
 			--with-pulse=*)               with_pulse="$optarg";;
 
+			--with-munt)                  with_munt="2";;
+			--without-munt)               with_munt="0";;
+			--with-munt=*)                with_munt="$optarg";;
+
 			--disable-builtin-depend)     enable_builtin_depend="0";;
 			--enable-builtin-depend)      enable_builtin_depend="2";;
 			--enable-builtin-depend=*)    enable_builtin_depend="$optarg";;
@@ -434,11 +440,13 @@ check_params() {
 		with_sdl="0"
 		with_asound="0"
 		with_pulse="0"
+		with_munt="0"
 	fi
 	detect_sdl2
 	detect_sdl
 	detect_asound
 	detect_pulseaudio
+	detect_munt
 
 	if [ "$os" = "MINGW" ] || [ "$os" = "CYGWIN" ] || [ "$os" = "WINCE" ]; then
 		log 1 "checking GDI video driver... found"
@@ -1039,6 +1047,10 @@ make_cflags_and_ldflags() {
 		CFLAGS="$CFLAGS $(pkg-config --cflags libpulse)"
 	fi
 
+	if [ "$with_munt" != "0" ]; then
+		LIBS="$LIBS -lmt32emu -lstdc++"
+	fi
+
 	if [ "$enable_assert" = "0" ]; then
 		CFLAGS="$CFLAGS -DNDEBUG"
 		CFLAGS_BUILD="$CFLAGS_BUILD -DNDEBUG"
@@ -1702,6 +1714,10 @@ detect_pulseaudio() {
 	detect_library "$with_pulse" "pulse" "libpulse.a" "pulse/" "pulseaudio.h"
 }
 
+detect_munt() {
+	detect_library "$with_munt" "munt" "libmt32emu.a" "mt32emu/" "mt32emu.h"
+}
+
 _detect_sort() {
 	sort_test_in="d
 a

src/audio/midi_munt.c

@@ -0,0 +1,74 @@
+/** @file src/audio/midi_munt.c use the MT32 emulator MUNT */
+
+#include <mt32emu/mt32emu.h>
+
+#include "types.h"
+#include "midi.h"
+#include "../os/error.h"
+
+static mt32emu_context s_context = NULL;
+
+const char * s_romfiles[] = {
+	"/Users/nanard/roms/CM32L_CONTROL.1989-12-05.v1.02.ROM",
+	"/Users/nanard/roms/CM32L_PCM.ROM",
+	NULL
+};
+
+bool midi_init(void)
+{
+	int i;
+	mt32emu_report_handler_i handler = { NULL };
+
+	Debug("munt version : %s\n", mt32emu_get_library_version_string());
+	s_context = mt32emu_create_context(handler, NULL);
+	if (s_context == NULL) return false;
+	for (i = 0; s_romfiles[i] != NULL; i++) {
+		mt32emu_return_code ret = mt32emu_add_rom_file(s_context, s_romfiles[i]);
+		if (ret < MT32EMU_RC_OK) {
+			Error("Failed to load MT32 ROM file '%s' error %d\n", s_romfiles[i], (int)ret);
+			return false;
+		}
+	}
+	if (mt32emu_open_synth(s_context) != MT32EMU_RC_OK) {
+		Error("Failed to open synth\n");
+		return false;
+	}
+	return true;
+}
+
+void midi_uninit(void)
+{
+	mt32emu_close_synth(s_context);
+	mt32emu_free_context(s_context);
+	s_context = NULL;
+}
+
+/**
+ * Sends a midi command
+ *
+ * @param data The data to send in "packed" format, ie status | (data1 << 8) | (data2 << 16) */
+void midi_send(uint32 data)
+{
+	mt32emu_return_code ret;
+
+	ret = mt32emu_play_msg(s_context, data);
+	if (ret != MT32EMU_RC_OK) Warning("mt32emu_play_msg() error %d\n", (int)ret);
+}
+
+uint16 midi_send_string(const uint8 * data, uint16 len)
+{
+	mt32emu_return_code ret;
+
+	ret = mt32emu_play_sysex(s_context, data, len);
+	if (ret != MT32EMU_RC_OK) {
+		Warning("mt32emu_play_sysex() error %d\n", (int)ret);
+		return 0;
+	}
+	return len;
+}
+
+void midi_reset(void)
+{
+}
+
+