- Fix some valgrind warnings

- Added MIDI SFX support for Kyra2

svn-id: r35178

engines/kyra/sound.cpp

@@ -166,6 +166,13 @@ void KyraEngine_v1::snd_playTheme(int file, int track) {
 
 	_curSfxFile = _curMusicTheme = file;
 	_sound->loadSoundFile(_curMusicTheme);
+
+	// Kyrandia 2 uses a special file for
+	// MIDI sound effects, so we load
+	// this here
+	if (_flags.gameID == GI_KYRA2)
+		_sound->loadSfxFile("K2SFX");
+
 	if (track != -1)
 		_sound->playTrack(track);
 }

engines/kyra/sound.h

@@ -121,10 +121,16 @@ public:
 
 	/**
 	 * Load a sound file for playing music
-	 * and sound effects from.
+	 * (and somtimes sound effects) from.
 	 */
 	virtual void loadSoundFile(Common::String file) = 0;
 
+	/**
+	 * Load a sound file for playing sound
+	 * effects from.
+	 */
+	virtual void loadSfxFile(Common::String file) { }
+
 	/**
 	 * Plays the specified track.
 	 *
@@ -321,6 +327,7 @@ public:
 
 	void loadSoundFile(uint file);
 	void loadSoundFile(Common::String file);
+	void loadSfxFile(Common::String file);
 
 	void playTrack(uint8 track);
 	void haltTrack();

engines/kyra/sound_midi.cpp

@@ -157,8 +157,10 @@ MidiOutput::MidiOutput(OSystem *system, MidiDriver *output, bool isMT32, bool de
 			sendIntern(0xC0, i, defaultPrograms[i-1], 0x00);
 	}
 
-	for (int i = 0; i < 4; ++i)
+	for (int i = 0; i < 4; ++i) {
+		_sources[i].volume = 0xFF;
 		initSource(i);
+	}
 }
 
 
@@ -458,6 +460,7 @@ SoundMidiPC::SoundMidiPC(KyraEngine_v1 *vm, Audio::Mixer *mixer, MidiDriver *dri
 	}
 
 	_musicVolume = _sfxVolume = 0;
+	_fadeMusicOut = false;
 }
 
 SoundMidiPC::~SoundMidiPC() {
@@ -566,6 +569,24 @@ void SoundMidiPC::loadSoundFile(Common::String file) {
 	}
 }
 
+void SoundMidiPC::loadSfxFile(Common::String file) {
+	Common::StackLock lock(_mutex);
+
+	file += _useC55 ? ".C55" : ".XMI";
+	if (!_vm->resource()->exists(file.c_str()))
+		return;
+
+	if (_sfxFile != _musicFile)
+		delete[] _sfxFile;
+
+	_sfxFile = _vm->resource()->fileData(file.c_str(), &_sfxFileSize);
+	for (int i = 0; i < 3; ++i) {
+		_output->setSoundSource(i+1);
+		_sfx[i]->loadMusic(_sfxFile, _sfxFileSize);
+		_sfx[i]->stopPlaying();
+	}
+}
+
 void SoundMidiPC::playTrack(uint8 track) {
 	Common::StackLock lock(_mutex);
 	_output->initSource(0);