stop playing a sample before deleting the sample data

svn-id: r20902

engines/gob/game.cpp

@@ -413,13 +413,16 @@ void Game::freeSoundSlot(int16 slot) {
 	if (_soundSamples[slot] == 0)
 		return;
 
+	char* data = _soundSamples[slot]->data;
+
+	_vm->_snd->freeSoundDesc(_soundSamples[slot], false);
+	_soundSamples[slot] = 0;
+
 	if (_soundFromExt[slot] == 1) {
-		delete[] (_soundSamples[slot]->data - 6);
+		delete[] (data - 6);
 		_soundFromExt[slot] = 0;
 	}
 
-	delete _soundSamples[slot];
-	_soundSamples[slot] = 0;
 }
 
 int16 Game::checkKeys(int16 *pMouseX, int16 *pMouseY, int16 *pButtons, char handleMouse) {

engines/gob/goblin.cpp

@@ -1825,7 +1825,7 @@ void Goblin::freeObjects(void) {
 		if (_soundData[i] == 0)
 			continue;
 
-		_vm->_snd->freeSoundData(_soundData[i]);
+		_vm->_snd->freeSoundDesc(_soundData[i]);
 		_soundData[i] = 0;
 	}
 

engines/gob/sound.cpp

@@ -127,7 +127,7 @@ Snd::SoundDesc *Snd::loadSoundData(const char *path) {
 	return sndDesc;
 }
 
-void Snd::freeSoundData(Snd::SoundDesc *sndDesc) {
+void Snd::freeSoundDesc(Snd::SoundDesc *sndDesc, bool freedata) {
 	_vm->_mixer->stopHandle(sndDesc->handle);
 
 	for (int i = 0; i < ARRAYSIZE(_loopingSounds); i++) {
@@ -135,7 +135,9 @@ void Snd::freeSoundData(Snd::SoundDesc *sndDesc) {
 			_loopingSounds[i] = NULL;
 	}
 
-	delete[] sndDesc->data;
+	if (freedata) {
+		delete[] sndDesc->data;
+	}
 	delete sndDesc;
 }
 

engines/gob/sound.h

@@ -58,7 +58,10 @@ public:
 	void playSample(SoundDesc *sndDesc, int16 repCount, int16 frequency);
 	void playComposition(Snd::SoundDesc ** samples, int16 *composit, int16 freqVal) {;}
 	void waitEndPlay(void) {;}
-	void freeSoundData(SoundDesc *sndDesc);
+
+	// This deletes sndDesc and stops playing the sample.
+	// If freedata is set, it also delete[]s the sample data.
+	void freeSoundDesc(SoundDesc *sndDesc, bool freedata=true);
 
 protected:
 	// TODO: This is a very primitive square wave generator. The only thing is