1
2/* Test the SDL CD-ROM audio functions */
3
4#include <stdlib.h>
5#include <stdio.h>
6#include <string.h>
7#include <ctype.h>
8
9#include "SDL.h"
10
11/* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
12static void quit(int rc)
13{
14	SDL_Quit();
15	exit(rc);
16}
17
18static void PrintStatus(int driveindex, SDL_CD *cdrom)
19{
20	CDstatus status;
21	char *status_str;
22
23	status = SDL_CDStatus(cdrom);
24	switch (status) {
25		case CD_TRAYEMPTY:
26			status_str = "tray empty";
27			break;
28		case CD_STOPPED:
29			status_str = "stopped";
30			break;
31		case CD_PLAYING:
32			status_str = "playing";
33			break;
34		case CD_PAUSED:
35			status_str = "paused";
36			break;
37		case CD_ERROR:
38			status_str = "error state";
39			break;
40	}
41	printf("Drive %d status: %s\n", driveindex, status_str);
42	if ( status >= CD_PLAYING ) {
43		int m, s, f;
44		FRAMES_TO_MSF(cdrom->cur_frame, &m, &s, &f);
45		printf("Currently playing track %d, %d:%2.2d\n",
46			cdrom->track[cdrom->cur_track].id, m, s);
47	}
48}
49
50static void ListTracks(SDL_CD *cdrom)
51{
52	int i;
53	int m, s, f;
54	char* trtype;
55
56	SDL_CDStatus(cdrom);
57	printf("Drive tracks: %d\n", cdrom->numtracks);
58	for ( i=0; i<cdrom->numtracks; ++i ) {
59		FRAMES_TO_MSF(cdrom->track[i].length, &m, &s, &f);
60		if ( f > 0 )
61			++s;
62		switch(cdrom->track[i].type)
63		{
64		    case SDL_AUDIO_TRACK:
65			trtype="audio";
66			break;
67		    case SDL_DATA_TRACK:
68			trtype="data";
69			break;
70		    default:
71			trtype="unknown";
72			break;
73		}
74		printf("\tTrack (index %d) %d: %d:%2.2d / %d [%s track]\n", i,
75					cdrom->track[i].id, m, s, cdrom->track[i].length, trtype);
76	}
77}
78
79static void PrintUsage(char *argv0)
80{
81	fprintf(stderr, "Usage: %s [drive#] [command] [command] ...\n", argv0);
82	fprintf(stderr, "Where 'command' is one of:\n");
83	fprintf(stderr, "	-status\n");
84	fprintf(stderr, "	-list\n");
85	fprintf(stderr, "	-play [first_track] [first_frame] [num_tracks] [num_frames]\n");
86	fprintf(stderr, "	-pause\n");
87	fprintf(stderr, "	-resume\n");
88	fprintf(stderr, "	-stop\n");
89	fprintf(stderr, "	-eject\n");
90	fprintf(stderr, "	-sleep <milliseconds>\n");
91}
92
93int main(int argc, char *argv[])
94{
95	int drive;
96	int i;
97	SDL_CD *cdrom;
98
99	/* Initialize SDL first */
100	if ( SDL_Init(SDL_INIT_CDROM) < 0 ) {
101		fprintf(stderr, "Couldn't initialize SDL: %s\n",SDL_GetError());
102		return(1);
103	}
104
105	/* Find out how many CD-ROM drives are connected to the system */
106	if ( SDL_CDNumDrives() == 0 ) {
107		printf("No CD-ROM devices detected\n");
108		quit(0);
109	}
110	printf("Drives available: %d\n", SDL_CDNumDrives());
111	for ( i=0; i<SDL_CDNumDrives(); ++i ) {
112		printf("Drive %d:  \"%s\"\n", i, SDL_CDName(i));
113	}
114
115	/* Open the CD-ROM */
116	drive = 0;
117	i=1;
118	if ( argv[i] && isdigit(argv[i][0]) ) {
119		drive = atoi(argv[i++]);
120	}
121	cdrom = SDL_CDOpen(drive);
122	if ( cdrom == NULL ) {
123		fprintf(stderr, "Couldn't open drive %d: %s\n", drive,
124							SDL_GetError());
125		quit(2);
126	}
127#ifdef TEST_NULLCD
128	cdrom = NULL;
129#endif
130
131	/* Find out which function to perform */
132	for ( ; argv[i]; ++i ) {
133		if ( strcmp(argv[i], "-status") == 0 ) {
134			/* PrintStatus(drive, cdrom); */
135		} else
136		if ( strcmp(argv[i], "-list") == 0 ) {
137			ListTracks(cdrom);
138		} else
139		if ( strcmp(argv[i], "-play") == 0 ) {
140			int strack, sframe;
141			int ntrack, nframe;
142
143			strack = 0;
144			if ( argv[i+1] && isdigit(argv[i+1][0]) ) {
145				strack = atoi(argv[++i]);
146			}
147			sframe = 0;
148			if ( argv[i+1] && isdigit(argv[i+1][0]) ) {
149				sframe = atoi(argv[++i]);
150			}
151			ntrack = 0;
152			if ( argv[i+1] && isdigit(argv[i+1][0]) ) {
153				ntrack = atoi(argv[++i]);
154			}
155			nframe = 0;
156			if ( argv[i+1] && isdigit(argv[i+1][0]) ) {
157				nframe = atoi(argv[++i]);
158			}
159			if ( CD_INDRIVE(SDL_CDStatus(cdrom)) ) {
160				if ( SDL_CDPlayTracks(cdrom, strack, sframe,
161							ntrack, nframe) < 0 ) {
162					fprintf(stderr,
163			"Couldn't play tracks %d/%d for %d/%d: %s\n",
164				strack, sframe, ntrack, nframe, SDL_GetError());
165				}
166			} else {
167				fprintf(stderr, "No CD in drive!\n");
168			}
169		} else
170		if ( strcmp(argv[i], "-pause") == 0 ) {
171			if ( SDL_CDPause(cdrom) < 0 ) {
172				fprintf(stderr, "Couldn't pause CD: %s\n",
173								SDL_GetError());
174			}
175		} else
176		if ( strcmp(argv[i], "-resume") == 0 ) {
177			if ( SDL_CDResume(cdrom) < 0 ) {
178				fprintf(stderr, "Couldn't resume CD: %s\n",
179								SDL_GetError());
180			}
181		} else
182		if ( strcmp(argv[i], "-stop") == 0 ) {
183			if ( SDL_CDStop(cdrom) < 0 ) {
184				fprintf(stderr, "Couldn't eject CD: %s\n",
185								SDL_GetError());
186			}
187		} else
188		if ( strcmp(argv[i], "-eject") == 0 ) {
189			if ( SDL_CDEject(cdrom) < 0 ) {
190				fprintf(stderr, "Couldn't eject CD: %s\n",
191								SDL_GetError());
192			}
193		} else
194		if ( (strcmp(argv[i], "-sleep") == 0) &&
195				(argv[i+1] && isdigit(argv[i+1][0])) ) {
196			SDL_Delay(atoi(argv[++i]));
197			printf("Delayed %d milliseconds\n", atoi(argv[i]));
198		} else {
199			PrintUsage(argv[0]);
200			SDL_CDClose(cdrom);
201			quit(1);
202		}
203	}
204	PrintStatus(drive, cdrom);
205	SDL_CDClose(cdrom);
206	SDL_Quit();
207
208	return(0);
209}
210