TOLTECS: Save music in saved games

Also, move all music resource related code into its own class

6 files changed, 75 insertions, 23 deletions

diff --git a/engines/toltecs/music.cpp b/engines/toltecs/music.cpp
index ef44421de9..c322961077 100644
--- a/engines/toltecs/music.cpp
+++ b/engines/toltecs/music.cpp
@@ -22,9 +22,12 @@
 
 // FIXME: This code is taken from SAGA and needs more work (e.g. setVolume).
 
+#include "toltecs/toltecs.h"
 #include "toltecs/music.h"
+#include "toltecs/resource.h"
 
 #include "audio/midiparser.h"
+#include "common/textconsole.h"
 
 namespace Toltecs {
 
@@ -101,4 +104,42 @@ void MusicPlayer::stopAndClear() {
 	_buffer = NULL;
 }
 
+Music::Music(ArchiveReader *arc) : MusicPlayer(true), _arc(arc) {
+	_sequenceResIndex = -1;
+}
+
+void Music::playSequence(int16 sequenceResIndex) {
+	_sequenceResIndex = sequenceResIndex;
+
+	int32 resourceSize = _arc->getResourceSize(sequenceResIndex);
+	byte *data = new byte[resourceSize];
+	_arc->openResource(sequenceResIndex);
+	_arc->read(data, resourceSize);
+	_arc->closeResource();
+
+	if (!memcmp(data, "FORM", 4))
+		playMIDI(data, resourceSize, true);	// music tracks are always looping
+	else
+		// Sanity check: this should never occur
+		error("playSequence: resource %d isn't XMIDI", sequenceResIndex);
+
+	delete[] data;
+}
+
+void Music::stopSequence() {
+	_sequenceResIndex = -1;
+	stopAndClear();
+}
+
+void Music::saveState(Common::WriteStream *out) {
+	out->writeSint16LE(_sequenceResIndex);
+}
+
+void Music::loadState(Common::ReadStream *in) {
+	_sequenceResIndex = in->readSint16LE();
+
+	if (_sequenceResIndex >= 0)
+		playSequence(_sequenceResIndex);
+}
+
 } // End of namespace Made
diff --git a/engines/toltecs/music.h b/engines/toltecs/music.h
index c7189e89d6..79df1ea2f5 100644
--- a/engines/toltecs/music.h
+++ b/engines/toltecs/music.h
@@ -26,9 +26,12 @@
 #define MADE_MUSIC_H
 
 #include "audio/midiplayer.h"
+#include "common/stream.h"
 
 namespace Toltecs {
 
+class ArchiveReader;
+
 class MusicPlayer : public Audio::MidiPlayer {
 public:
 	MusicPlayer(bool isGM = true);
@@ -48,6 +51,23 @@ private:
 	byte *_buffer;
 };
 
-} // End of namespace Made
+class Music : public MusicPlayer {
+public:
+
+	Music(ArchiveReader *arc);
+	~Music() {}
+
+	void playSequence(int16 sequenceResIndex);
+	void stopSequence();
+
+	void saveState(Common::WriteStream *out);
+	void loadState(Common::ReadStream *in);
+
+private:
+	int16 _sequenceResIndex;
+	ArchiveReader *_arc;
+};
+
+} // End of namespace Toltecs
 
 #endif
diff --git a/engines/toltecs/saveload.cpp b/engines/toltecs/saveload.cpp
index af78c8b975..c24d2149b0 100644
--- a/engines/toltecs/saveload.cpp
+++ b/engines/toltecs/saveload.cpp
@@ -27,6 +27,7 @@
 
 #include "toltecs/toltecs.h"
 #include "toltecs/animation.h"
+#include "toltecs/music.h"
 #include "toltecs/palette.h"
 #include "toltecs/script.h"
 #include "toltecs/screen.h"
@@ -40,7 +41,7 @@ namespace Toltecs {
 	- Maybe switch to SCUMM/Tinsel serialization approach?
 */
 
-#define TOLTECS_SAVEGAME_VERSION 2
+#define TOLTECS_SAVEGAME_VERSION 3
 
 ToltecsEngine::kReadSaveHeaderError ToltecsEngine::readSaveHeader(Common::SeekableReadStream *in, bool loadThumbnail, SaveHeader &header) {
 
@@ -133,6 +134,7 @@ void ToltecsEngine::savegame(const char *filename, const char *description) {
 	_anim->saveState(out);
 	_screen->saveState(out);
 	_sound->saveState(out);
+	_music->saveState(out);
 
 	out->finalize();
 	delete out;
@@ -156,6 +158,7 @@ void ToltecsEngine::loadgame(const char *filename) {
 	}
 	
 	_sound->stopAll();
+	_music->stopSequence();
 	g_engine->setTotalPlayTime(header.playTime * 1000);
 
 	_cameraX = in->readUint16LE();
@@ -189,6 +192,8 @@ void ToltecsEngine::loadgame(const char *filename) {
 	_screen->loadState(in);
 	if (header.version >= 2)
 		_sound->loadState(in);
+	if (header.version >= 3)
+		_music->loadState(in);
 
 	delete in;
 
diff --git a/engines/toltecs/script.cpp b/engines/toltecs/script.cpp
index 959db8b277..e5fc865f5b 100644
--- a/engines/toltecs/script.cpp
+++ b/engines/toltecs/script.cpp
@@ -1009,27 +1009,13 @@ void ScriptInterpreter::sfStartSequence() {
 	if (sequenceResIndex >= 0) {
 		//_vm->_arc->dump(sequenceResIndex, "music");	// DEBUG: Dump music so we know what's in there
 
-		int32 resourceSize = _vm->_arc->getResourceSize(sequenceResIndex);
-		byte *data = new byte[resourceSize];
-		_vm->_arc->openResource(sequenceResIndex);
-		_vm->_arc->read(data, resourceSize);
-		_vm->_arc->closeResource();
-
-		if (!memcmp(data, "FORM", 4)) {
-			// TODO: It seems that music is always looping?
-			_vm->_musicPlayer->playMIDI(data, resourceSize, true);
-		} else {
-			// Sanity check: this should never occur
-			error("sfStartSequence: resource %d isn't XMIDI", sequenceResIndex);
-		}
-
-		delete[] data;
+		_vm->_music->playSequence(sequenceResIndex);
 	}
 }
 
 void ScriptInterpreter::sfEndSequence() {
 	//debug("ScriptInterpreter::sfEndSequence");
-	_vm->_musicPlayer->stopAndClear();
+	_vm->_music->stopSequence();
 }
 
 void ScriptInterpreter::sfSetSequenceVolume() {
diff --git a/engines/toltecs/toltecs.cpp b/engines/toltecs/toltecs.cpp
index 8a2853e495..d403e0499b 100644
--- a/engines/toltecs/toltecs.cpp
+++ b/engines/toltecs/toltecs.cpp
@@ -124,7 +124,7 @@ Common::Error ToltecsEngine::run() {
 	_palette = new Palette(this);
 	_segmap = new SegmentMap(this);
 	_moviePlayer = new MoviePlayer(this);
-	_musicPlayer = new MusicPlayer();
+	_music = new Music(_arc);
 	_menuSystem = new MenuSystem(this);
 	
 	_sound = new Sound(this);
@@ -168,7 +168,7 @@ Common::Error ToltecsEngine::run() {
 	}
 	_script->runScript();
 
-	_musicPlayer->stopAndClear();
+	_music->stopSequence();
 	_sound->stopAll();
 
 	delete _arc;
@@ -178,7 +178,7 @@ Common::Error ToltecsEngine::run() {
 	delete _anim;
 	delete _palette;
 	delete _segmap;
-	delete _musicPlayer;
+	delete _music;
 	delete _moviePlayer;
 	delete _menuSystem;
 	
diff --git a/engines/toltecs/toltecs.h b/engines/toltecs/toltecs.h
index 1334f84cb3..efa1f9d13a 100644
--- a/engines/toltecs/toltecs.h
+++ b/engines/toltecs/toltecs.h
@@ -45,7 +45,7 @@ class ArchiveReader;
 class Input;
 class MenuSystem;
 class MoviePlayer;
-class MusicPlayer;
+class Music;
 class Palette;
 class ResourceCache;
 class ScriptInterpreter;
@@ -134,7 +134,7 @@ public:
 	Input *_input;
 	MenuSystem *_menuSystem;
 	MoviePlayer *_moviePlayer;
-	MusicPlayer *_musicPlayer;
+	Music *_music;
 	Palette *_palette;
 	ResourceCache *_res;
 	ScriptInterpreter *_script;