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><A |
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>CDROM Examples</A |
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><A |
NAME="AEN393" |
>Listing CD-ROM drives</A |
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><P |
><PRE |
CLASS="PROGRAMLISTING" |
> #include "SDL.h" |
|
/* Initialize SDL first */ |
if ( SDL_Init(SDL_INIT_CDROM) < 0 ) { |
fprintf(stderr, "Couldn't initialize SDL: %s\n",SDL_GetError()); |
exit(1); |
} |
atexit(SDL_Quit); |
|
/* Find out how many CD-ROM drives are connected to the system */ |
printf("Drives available: %d\n", SDL_CDNumDrives()); |
for ( i=0; i<SDL_CDNumDrives(); ++i ) { |
printf("Drive %d: \"%s\"\n", i, SDL_CDName(i)); |
}</PRE |
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><A |
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>Opening the default drive</A |
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CLASS="PROGRAMLISTING" |
> SDL_CD *cdrom; |
CDstatus status; |
char *status_str; |
|
cdrom = SDL_CDOpen(0); |
if ( cdrom == NULL ) { |
fprintf(stderr, "Couldn't open default CD-ROM drive: %s\n", |
SDL_GetError()); |
exit(2); |
} |
|
status = SDL_CDStatus(cdrom); |
switch (status) { |
case CD_TRAYEMPTY: |
status_str = "tray empty"; |
break; |
case CD_STOPPED: |
status_str = "stopped"; |
break; |
case CD_PLAYING: |
status_str = "playing"; |
break; |
case CD_PAUSED: |
status_str = "paused"; |
break; |
case CD_ERROR: |
status_str = "error state"; |
break; |
} |
printf("Drive status: %s\n", status_str); |
if ( status >= CD_PLAYING ) { |
int m, s, f; |
FRAMES_TO_MSF(cdrom->cur_frame, &m, &s, &f); |
printf("Currently playing track %d, %d:%2.2d\n", |
cdrom->track[cdrom->cur_track].id, m, s); |
}</PRE |
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><A |
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>Listing the tracks on a CD</A |
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><PRE |
CLASS="PROGRAMLISTING" |
> SDL_CD *cdrom; /* Assuming this has already been set.. */ |
int i; |
int m, s, f; |
|
SDL_CDStatus(cdrom); |
printf("Drive tracks: %d\n", cdrom->numtracks); |
for ( i=0; i<cdrom->numtracks; ++i ) { |
FRAMES_TO_MSF(cdrom->track[i].length, &m, &s, &f); |
if ( f > 0 ) |
++s; |
printf("\tTrack (index %d) %d: %d:%2.2d\n", i, |
cdrom->track[i].id, m, s); |
}</PRE |
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><A |
NAME="AEN405" |
>Play an entire CD</A |
></H2 |
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><PRE |
CLASS="PROGRAMLISTING" |
> SDL_CD *cdrom; /* Assuming this has already been set.. */ |
|
// Play entire CD: |
if ( CD_INDRIVE(SDL_CDStatus(cdrom)) ) |
SDL_CDPlayTracks(cdrom, 0, 0, 0, 0); |
|
// Play last track: |
if ( CD_INDRIVE(SDL_CDStatus(cdrom)) ) { |
SDL_CDPlayTracks(cdrom, cdrom->numtracks-1, 0, 0, 0); |
} |
|
// Play first and second track and 10 seconds of third track: |
if ( CD_INDRIVE(SDL_CDStatus(cdrom)) ) |
SDL_CDPlayTracks(cdrom, 0, 0, 2, 10);</PRE |
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