Fix music credits not being shown on level music start

By pretty much restoring the old musicdef system, I tried to work with it but couldn't, if needed that can easily be brought back later on.

src/s_sound.c

@@ -1672,32 +1672,69 @@ static UINT16 W_CheckForMusicDefInPwad(UINT16 wadid)
 	return INT16_MAX; // not found
 }
 
-static boolean
+void S_LoadMusicDefs(UINT16 wadnum)
-ReadMusicDefFields (UINT16 wadnum, int line, boolean fields, char *stoken,
-		musicdef_t **defp, int *versionp)
 {
-	musicdef_t *def;
+	UINT16 lump;
-	//int version;
+	char *buf;
-
+	char *buf2;
+	char *stoken;
 	char *value;
-	char *textline;
+	size_t size;
-	//int i;
+	musicdef_t *def, *prev;
+	UINT16 line = 1; // for better error msgs
 
-	(void)versionp;
+	lump = W_CheckForMusicDefInPwad(wadnum);
+	if (lump == INT16_MAX)
+		return;
 
-	if (!stricmp(stoken, "lump"))
+	buf = W_CacheLumpNumPwad(wadnum, lump, PU_CACHE);
+	size = W_LumpLengthPwad(wadnum, lump);
+
+	// for strtok
+	buf2 = malloc(size+1);
+	if (!buf2)
+		I_Error("S_LoadMusicDefs: No more free memory\n");
+	M_Memcpy(buf2,buf,size);
+	buf2[size] = '\0';
+
+	def = prev = NULL;
+
+	stoken = strtok (buf2, "\r\n ");
+	// Find music def
+	while (stoken)
 	{
-		value = strtok(NULL, " ");
+		/*if ((stoken[0] == '/' && stoken[1] == '/')
+			|| (stoken[0] == '#')) // skip comments
+		{
+			stoken = strtok(NULL, "\r\n"); // skip end of line
+			if (def)
+				stoken = strtok(NULL, "\r\n= ");
+			else
+				stoken = strtok(NULL, "\r\n ");
+			line++;
+		}
+		else*/ if (!stricmp(stoken, "lump"))
+		{
+			value = strtok(NULL, "\r\n ");
+
 			if (!value)
 			{
-			CONS_Alert(CONS_WARNING,
+				CONS_Alert(CONS_WARNING, "MUSICDEF: Lump '%s' is missing name. (file %s, line %d)\n", stoken, wadfiles[wadnum]->filename, line);
-					"MUSICDEF: Field '%s' is missing name. (file %s, line %d)\n",
+				stoken = strtok(NULL, "\r\n"); // skip end of line
-					stoken, wadfiles[wadnum]->filename, line);
+				goto skip_lump;
-			return false;
+			}
+
+			// No existing musicdefs
+			if (!musicdefstart)
+			{
+				musicdefstart = Z_Calloc(sizeof (musicdef_t), PU_STATIC, NULL);
+				STRBUFCPY(musicdefstart->name, value);
+				strlwr(musicdefstart->name);
+				def = musicdefstart;
+				//CONS_Printf("S_LoadMusicDefs: Initialized musicdef w/ song '%s'\n", def->name);
 			}
 			else
 			{
-			musicdef_t *prev = NULL;
 				def = musicdefstart;
 
 				// Search if this is a replacement
@@ -1724,171 +1761,54 @@ ReadMusicDefFields (UINT16 wadnum, int line, boolean fields, char *stoken,
 						prev->next = def;
 					//CONS_Printf("S_LoadMusicDefs: Added song '%s'\n", def->name);
 				}
+			}
 
-			(*defp) = def;
+skip_lump:
-		}
+			stoken = strtok(NULL, "\r\n ");
-	}
+			line++;
-	else if (!stricmp(stoken, "version"))
-	{
-		if (fields)/* is this not the first field? */
-		{
-			CONS_Alert(CONS_WARNING,
-					"MUSICDEF: Field '%s' must come first. (file %s, line %d)\n",
-					stoken, wadfiles[wadnum]->filename, line);
-			return false;
 		}
 		else
 		{
-			value = strtok(NULL, " ");
+			value = strtok(NULL, "\r\n= ");
-			if (!value)
-			{
-				CONS_Alert(CONS_WARNING,
-						"MUSICDEF: Field '%s' is missing version. (file %s, line %d)\n",
-						stoken, wadfiles[wadnum]->filename, line);
-				return false;
-			}
-			else
-			{
-				/*
-				if (strcasecmp(value, "2.2.0"))
-					(*versionp) = MUSICDEF_221;
-				*/
-				;
-			}
-		}
-	}
-	else
-	{
-		//version = (*versionp);
-
-		value = strtok(NULL, "");
-
-		if (value)
-		{
-			// Find the equals sign.
-			value = strchr(value, '=');
-		}
 
 			if (!value)
 			{
-			CONS_Alert(CONS_WARNING,
+				CONS_Alert(CONS_WARNING, "MUSICDEF: Field '%s' is missing value. (file %s, line %d)\n", stoken, wadfiles[wadnum]->filename, line);
-					"MUSICDEF: Field '%s' is missing value. (file %s, line %d)\n",
+				stoken = strtok(NULL, "\r\n"); // skip end of line
-					stoken, wadfiles[wadnum]->filename, line);
+				goto skip_field;
-			return false;
 			}
-		else
-		{
-			def = (*defp);
 
 			if (!def)
 			{
-				CONS_Alert(CONS_ERROR,
+				CONS_Alert(CONS_ERROR, "MUSICDEF: No music definition before field '%s'. (file %s, line %d)\n", stoken, wadfiles[wadnum]->filename, line);
-						"MUSICDEF: No music definition before field '%s'. (file %s, line %d)\n",
+				free(buf2);
-						stoken, wadfiles[wadnum]->filename, line);
+				return;
-				return false;
 			}
 
-			// Skip the equals sign.
-			value++;
-
-			// Now skip funny whitespace.
-			value += strspn(value, "\t ");
-
-			textline = value;
-			//i = atoi(value);
-
-			/* based ignored lumps */
 			if (!stricmp(stoken, "usage")) {
 #if 0 // Ignore for now
-				STRBUFCPY(def->usage, textline);
+				STRBUFCPY(def->usage, value);
+				for (value = def->usage; *value; value++)
+					if (*value == '_') *value = ' '; // turn _ into spaces.
+				//CONS_Printf("S_LoadMusicDefs: Set usage to '%s'\n", def->usage);
 #endif
 			} else if (!stricmp(stoken, "source")) {
-				STRBUFCPY(def->source, textline);
+				STRBUFCPY(def->source, value);
+				for (value = def->source; *value; value++)
+					if (*value == '_') *value = ' '; // turn _ into spaces.
+				//CONS_Printf("S_LoadMusicDefs: Set source to '%s'\n", def->source);
 			} else {
-				CONS_Alert(CONS_WARNING,
+				CONS_Alert(CONS_WARNING, "MUSICDEF: Invalid field '%s'. (file %s, line %d)\n", stoken, wadfiles[wadnum]->filename, line);
-						"MUSICDEF: Invalid field '%s'. (file %s, line %d)\n",
-						stoken, wadfiles[wadnum]->filename, line);
-			}
-		}
 			}
 
-	return true;
+skip_field:
+			stoken = strtok(NULL, "\r\n= ");
+			line++;
+		}
 	}
 
-void S_LoadMusicDefs(UINT16 wadnum)
+	free(buf2);
-{
-	UINT16 lumpnum;
-	char *lump;
-	char *musdeftext;
-	size_t size;
-
-	char *lf;
-	char *stoken;
-
-	size_t nlf = 0xFFFFFFFF;
-	size_t ncr;
-
-	musicdef_t *def = NULL;
-	int version = MUSICDEF_20;
-	int line = 1; // for better error msgs
-	boolean fields = false;
-
-	lumpnum = W_CheckForMusicDefInPwad(wadnum);
-	if (lumpnum == INT16_MAX)
 	return;
-
-	lump = W_CacheLumpNumPwad(wadnum, lumpnum, PU_CACHE);
-	size = W_LumpLengthPwad(wadnum, lumpnum);
-
-	// Null-terminated MUSICDEF lump.
-	musdeftext = malloc(size+1);
-	if (!musdeftext)
-		I_Error("S_LoadMusicDefs: No more free memory for the parser\n");
-	M_Memcpy(musdeftext, lump, size);
-	musdeftext[size] = '\0';
-
-	// Find music def
-	stoken = musdeftext;
-	for (;;)
-	{
-		lf = strpbrk(stoken, "\r\n");
-		if (lf)
-		{
-			if (*lf == '\n')
-				nlf = 1;
-			else
-				nlf = 0;
-			*lf++ = '\0';/* now we can delimit to here */
-		}
-
-		stoken = strtok(stoken, " ");
-		if (stoken)
-		{
-			if (! ReadMusicDefFields(wadnum, line, fields, stoken,
-						&def, &version))
-				break;
-			fields = true;
-		}
-
-		if (lf)
-		{
-			do
-			{
-				line += nlf;
-				ncr = strspn(lf, "\r");/* skip CR */
-				lf += ncr;
-				nlf = strspn(lf, "\n");
-				lf += nlf;
-			}
-			while (nlf || ncr) ;
-
-			stoken = lf;/* now the next nonempty line */
-		}
-		else
-			break;/* EOF */
-	}
-
-	free(musdeftext);
 }
 
 //