Rename cdrom_device profile to playlist

Also renames `-devcd` command line flag to `-playlist`.

The old names can still be used for backwards compatibility.

src/cdrom.bgm.c

@@ -28,7 +28,7 @@
 
 static int current_track;
 
-static int cdrom_bgm_init(char *dev) {
+static int cdrom_bgm_init(char *playlist) {
 	prv.cd_maxtrk = ald_get_maxno(DRIFILE_BGM) + 1;
 	return OK;
 }

src/cdrom.emscripten.c

@@ -27,7 +27,7 @@
 
 static int frame_of_getpos = -1;
 
-int cdrom_init(char *name) {
+int cdrom_init(char *playlist) {
 	return OK;
 }
 

src/cdrom.mp3.c

@@ -64,6 +64,9 @@ static int          start_time;
 static int cdrom_init(char *playlist_path) {
 	char buf[256];
 
+	if (!playlist_path || !playlist_path[0])
+		return NG;
+
 	FILE *fp = fopen(playlist_path, "r");
 	if (fp) {
 		// Skip the first line

src/music_cdrom.c

@@ -38,11 +38,10 @@ extern cdromdevice_t cdrom_mp3;
 #define NATIVE_CD_DEVICE &cdrom_mp3
 #endif
 
-static char *dev = CDROM_DEVICE;
+static char *playlist = DEFAULT_PLAYLIST_PATH;
 
-void muscd_set_devicename(const char *name) {
-	if (0 == strcmp("none", name)) dev = NULL;
-	else                           dev = strdup(name);
+void muscd_set_playlist(const char *name) {
+	playlist = strdup(name);
 }
 
 int muscd_init(void) {
@@ -52,7 +51,7 @@ int muscd_init(void) {
 	} else {
 		prv.cddev = NATIVE_CD_DEVICE;
 	}
-	prv.cddev->init(dev);
+	prv.cddev->init(playlist);
 	prv.cd_current_track = 0;
 	return OK;
 }

src/music_cdrom.h

@@ -27,7 +27,7 @@
 #include "portab.h"
 #include "ald_manager.h"
 
-void muscd_set_devicename(const char *);
+void muscd_set_playlist(const char *);
 int muscd_init(void);
 int muscd_init_bgm(DRIFILETYPE type, int base_no);
 int muscd_exit(void);

src/xsystem35.c

@@ -114,7 +114,7 @@ static void sys35_usage(boolean verbose) {
 	puts(" -game game      : enable game-specific hacks");
 	puts(" -saveformat fmt : save file format. 'xsystem35', 'system36' or 'system39' (default)");
 	puts(" -renderer name  : set rendering driver name to 'name'");
-	puts(" -devcd device   : set cdrom device name to 'device'");
+	puts(" -playlist file  : load CD playlist from 'file'");
 	puts(" -devmidi device : set midi device name to 'device'");
 	
 	puts(" -M?             : select output midi methos");
@@ -275,9 +275,9 @@ static void sys35_ParseOption(int *argc, char **argv) {
 			debugger_mode = DEBUGGER_DAP;
 		} else if (0 == strcmp(argv[i], "-renderer")) {
 			render_driver = argv[i + 1];
-		} else if (0 == strcmp(argv[i], "-devcd")) {
+		} else if (0 == strcmp(argv[i], "-playlist") || 0 == strcmp(argv[i], "-devcd")) {
 			if (argv[i + 1] != NULL) {
-				muscd_set_devicename(argv[i + 1]);
+				muscd_set_playlist(argv[i + 1]);
 			}
 		} else if (0 == strcmp(argv[i], "-devmidi")) {
 			if (argv[i + 1] != NULL) {
@@ -374,11 +374,14 @@ static void check_profile() {
 		render_driver = param;
 	}
 
-	/* CD-ROM device name の設定 */
-	param = get_profile("cdrom_device");
+	/* CD-ROM playlist */
+	param = get_profile("playlist");
+	if (!param)
+		param = get_profile("cdrom_device");  // For backwards compatibility
 	if (param) {
-		muscd_set_devicename(param);
+		muscd_set_playlist(param);
 	}
+
 	/* joystick device name の設定 */
 	param = get_profile("joy_device");
 	if (param) {