+
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/* Test the SDL CD-ROM audio functions */+
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+
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#include <stdlib.h>+
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#include <stdio.h>+
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#include <string.h>+
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#include <ctype.h>+
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+
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#include "SDL.h"+
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+
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/* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */+
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static void+
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quit(int rc)+
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{+
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    SDL_Quit();+
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    exit(rc);+
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}+
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+
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static void+
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PrintStatus(int driveindex, SDL_CD * cdrom)+
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{+
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    CDstatus status;+
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    char *status_str;+
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+
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    status = SDL_CDStatus(cdrom);+
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    switch (status) {+
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    case CD_TRAYEMPTY:+
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        status_str = "tray empty";+
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        break;+
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    case CD_STOPPED:+
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        status_str = "stopped";+
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        break;+
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    case CD_PLAYING:+
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        status_str = "playing";+
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        break;+
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    case CD_PAUSED:+
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        status_str = "paused";+
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        break;+
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    case CD_ERROR:+
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        status_str = "error state";+
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        break;+
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    }+
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    printf("Drive %d status: %s\n", driveindex, status_str);+
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    if (status >= CD_PLAYING) {+
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        int m, s, f;+
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        FRAMES_TO_MSF(cdrom->cur_frame, &m, &s, &f);+
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        printf("Currently playing track %d, %d:%2.2d\n",+
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               cdrom->track[cdrom->cur_track].id, m, s);+
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    }+
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}+
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+
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static void+
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ListTracks(SDL_CD * cdrom)+
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{+
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    int i;+
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    int m, s, f;+
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    char *trtype;+
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+
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    SDL_CDStatus(cdrom);+
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    printf("Drive tracks: %d\n", cdrom->numtracks);+
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    for (i = 0; i < cdrom->numtracks; ++i) {+
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        FRAMES_TO_MSF(cdrom->track[i].length, &m, &s, &f);+
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        if (f > 0)+
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            ++s;+
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        switch (cdrom->track[i].type) {+
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        case SDL_AUDIO_TRACK:+
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            trtype = "audio";+
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            break;+
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        case SDL_DATA_TRACK:+
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            trtype = "data";+
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            break;+
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        default:+
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            trtype = "unknown";+
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            break;+
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        }+
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        printf("\tTrack (index %d) %d: %d:%2.2d / %d [%s track]\n", i,+
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               cdrom->track[i].id, m, s, cdrom->track[i].length, trtype);+
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    }+
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}+
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+
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static void+
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PrintUsage(char *argv0)+
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{+
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    fprintf(stderr, "Usage: %s [drive#] [command] [command] ...\n", argv0);+
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    fprintf(stderr, "Where 'command' is one of:\n");+
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    fprintf(stderr, "	-status\n");+
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    fprintf(stderr, "	-list\n");+
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    fprintf(stderr,+
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            "	-play [first_track] [first_frame] [num_tracks] [num_frames]\n");+
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    fprintf(stderr, "	-pause\n");+
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    fprintf(stderr, "	-resume\n");+
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    fprintf(stderr, "	-stop\n");+
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    fprintf(stderr, "	-eject\n");+
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    fprintf(stderr, "	-sleep <milliseconds>\n");+
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}+
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+
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int+
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main(int argc, char *argv[])+
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{+
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    int drive;+
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    int i;+
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    SDL_CD *cdrom;+
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+
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    /* Initialize SDL first */+
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    if (SDL_Init(SDL_INIT_CDROM) < 0) {+
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        fprintf(stderr, "Couldn't initialize SDL: %s\n", SDL_GetError());+
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        return (1);+
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    }+
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+
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    /* Find out how many CD-ROM drives are connected to the system */+
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    if (SDL_CDNumDrives() == 0) {+
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        printf("No CD-ROM devices detected\n");+
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        quit(0);+
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    }+
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    printf("Drives available: %d\n", SDL_CDNumDrives());+
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    for (i = 0; i < SDL_CDNumDrives(); ++i) {+
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        printf("Drive %d:  \"%s\"\n", i, SDL_CDName(i));+
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    }+
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+
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    /* Open the CD-ROM */+
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    drive = 0;+
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    i = 1;+
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    if (argv[i] && isdigit(argv[i][0])) {+
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        drive = atoi(argv[i++]);+
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    }+
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    cdrom = SDL_CDOpen(drive);+
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    if (cdrom == NULL) {+
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        fprintf(stderr, "Couldn't open drive %d: %s\n", drive,+
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                SDL_GetError());+
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        quit(2);+
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    }+
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#ifdef TEST_NULLCD+
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    cdrom = NULL;+
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#endif+
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+
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    /* Find out which function to perform */+
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    for (; argv[i]; ++i) {+
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        if (strcmp(argv[i], "-status") == 0) {+
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            /* PrintStatus(drive, cdrom); */+
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        } else if (strcmp(argv[i], "-list") == 0) {+
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            ListTracks(cdrom);+
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        } else if (strcmp(argv[i], "-play") == 0) {+
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            int strack, sframe;+
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            int ntrack, nframe;+
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+
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            strack = 0;+
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            if (argv[i + 1] && isdigit(argv[i + 1][0])) {+
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                strack = atoi(argv[++i]);+
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            }+
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            sframe = 0;+
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            if (argv[i + 1] && isdigit(argv[i + 1][0])) {+
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                sframe = atoi(argv[++i]);+
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            }+
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            ntrack = 0;+
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            if (argv[i + 1] && isdigit(argv[i + 1][0])) {+
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                ntrack = atoi(argv[++i]);+
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            }+
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            nframe = 0;+
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            if (argv[i + 1] && isdigit(argv[i + 1][0])) {+
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                nframe = atoi(argv[++i]);+
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            }+
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            if (CD_INDRIVE(SDL_CDStatus(cdrom))) {+
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                if (SDL_CDPlayTracks(cdrom, strack, sframe,+
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                                     ntrack, nframe) < 0) {+
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                    fprintf(stderr,+
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                            "Couldn't play tracks %d/%d for %d/%d: %s\n",+
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                            strack, sframe, ntrack, nframe, SDL_GetError());+
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                }+
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            } else {+
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                fprintf(stderr, "No CD in drive!\n");+
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            }+
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        } else if (strcmp(argv[i], "-pause") == 0) {+
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            if (SDL_CDPause(cdrom) < 0) {+
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                fprintf(stderr, "Couldn't pause CD: %s\n", SDL_GetError());+
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            }+
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        } else if (strcmp(argv[i], "-resume") == 0) {+
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            if (SDL_CDResume(cdrom) < 0) {+
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                fprintf(stderr, "Couldn't resume CD: %s\n", SDL_GetError());+
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            }+
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        } else if (strcmp(argv[i], "-stop") == 0) {+
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            if (SDL_CDStop(cdrom) < 0) {+
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                fprintf(stderr, "Couldn't eject CD: %s\n", SDL_GetError());+
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            }+
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        } else if (strcmp(argv[i], "-eject") == 0) {+
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            if (SDL_CDEject(cdrom) < 0) {+
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                fprintf(stderr, "Couldn't eject CD: %s\n", SDL_GetError());+
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            }+
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        } else if ((strcmp(argv[i], "-sleep") == 0) &&+
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                   (argv[i + 1] && isdigit(argv[i + 1][0]))) {+
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            SDL_Delay(atoi(argv[++i]));+
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            printf("Delayed %d milliseconds\n", atoi(argv[i]));+
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        } else {+
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            PrintUsage(argv[0]);+
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            SDL_CDClose(cdrom);+
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            quit(1);+
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        }+
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    }+
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    PrintStatus(drive, cdrom);+
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    SDL_CDClose(cdrom);+
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    SDL_Quit();+
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+
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    return (0);+
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}+
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