JADE: Play the main menu music from the XACT WaveBank

This makes the music play in the Xbox version as well. Previously, we
played the WAV file from the launcher, which doesn't exist in the Xbox
version.

We're still hard-coding the index to the main menu music, though.

src/engines/jade/game.cpp

@@ -29,6 +29,8 @@
 #include "src/events/events.h"
 
 #include "src/sound/sound.h"
+#include "src/sound/audiostream.h"
+#include "src/sound/xactwavebank.h"
 
 #include "src/engines/aurora/util.h"
 
@@ -63,6 +65,12 @@ Module &Game::getModule() {
 }
 
 void Game::run() {
+	try {
+		_musicBank.reset(Sound::XACTWaveBank::load("musicbank"));
+	} catch (...) {
+		Common::exceptionDispatcherWarning();
+	}
+
 	_module.reset(new Module(*_console));
 
 	while (!EventMan.quitRequested()) {
@@ -104,7 +112,27 @@ void Game::runModule() {
 
 void Game::playMenuMusic() {
 	stopMenuMusic();
-	_menuMusic = playSound("background", Sound::kSoundTypeMusic, true);
+
+	if (_musicBank) {
+		/* TODO: music.2da contains an entry for "mus_thm_MAINTHEME1", but this
+		 * gives us a state number. We will probably need to throw that state
+		 * number at the XACT SoundBank (xsb) somehow.
+		 *
+		 * Until that works, we'll get the main menu music by its index in the
+		 * XACT WaveBank (xwb) instead.
+		 */
+		static const size_t mainMenuMusic = 46;
+
+		try {
+			Sound::AudioStream *stream = Sound::makeLoopingAudioStream(_musicBank->getWave(mainMenuMusic), 0);
+
+			_menuMusic = SoundMan.playAudioStream(stream, Sound::kSoundTypeMusic);
+			SoundMan.startChannel(_menuMusic);
+
+		} catch (...) {
+			Common::exceptionDispatcherWarning();
+		}
+	}
 }
 
 void Game::stopMenuMusic() {

src/engines/jade/game.h

@@ -34,6 +34,10 @@
 
 #include "src/aurora/nwscript/variablecontainer.h"
 
+namespace Sound {
+	class XACTWaveBank;
+}
+
 namespace Engines {
 
 class Console;
@@ -70,6 +74,7 @@ class Game : public Aurora::NWScript::VariableContainer {
 
 	::Engines::Console *_console;
 
+	Common::ScopedPtr<Sound::XACTWaveBank> _musicBank;
 	Sound::ChannelHandle _menuMusic;
 
 	void playMenuMusic();