| 1 | <HTML |
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| 3 | ><TITLE |
| 4 | >CDROM Examples</TITLE |
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| 7 | CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+ |
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| 10 | TITLE="SDL Library Documentation" |
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| 13 | TITLE="Examples" |
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| 16 | TITLE="Audio Examples" |
| 17 | HREF="guideaudioexamples.html"><LINK |
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| 19 | TITLE="Time Examples" |
| 20 | HREF="guidetimeexamples.html"></HEAD |
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| 23 | BGCOLOR="#FFF8DC" |
| 24 | TEXT="#000000" |
| 25 | LINK="#0000ee" |
| 26 | VLINK="#551a8b" |
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| 29 | CLASS="NAVHEADER" |
| 30 | ><TABLE |
| 31 | SUMMARY="Header navigation table" |
| 32 | WIDTH="100%" |
| 33 | BORDER="0" |
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| 35 | CELLSPACING="0" |
| 36 | ><TR |
| 37 | ><TH |
| 38 | COLSPAN="3" |
| 39 | ALIGN="center" |
| 40 | >SDL Library Documentation</TH |
| 41 | ></TR |
| 42 | ><TR |
| 43 | ><TD |
| 44 | WIDTH="10%" |
| 45 | ALIGN="left" |
| 46 | VALIGN="bottom" |
| 47 | ><A |
| 48 | HREF="guideaudioexamples.html" |
| 49 | ACCESSKEY="P" |
| 50 | >Prev</A |
| 51 | ></TD |
| 52 | ><TD |
| 53 | WIDTH="80%" |
| 54 | ALIGN="center" |
| 55 | VALIGN="bottom" |
| 56 | >Chapter 4. Examples</TD |
| 57 | ><TD |
| 58 | WIDTH="10%" |
| 59 | ALIGN="right" |
| 60 | VALIGN="bottom" |
| 61 | ><A |
| 62 | HREF="guidetimeexamples.html" |
| 63 | ACCESSKEY="N" |
| 64 | >Next</A |
| 65 | ></TD |
| 66 | ></TR |
| 67 | ></TABLE |
| 68 | ><HR |
| 69 | ALIGN="LEFT" |
| 70 | WIDTH="100%"></DIV |
| 71 | ><DIV |
| 72 | CLASS="SECT1" |
| 73 | ><H1 |
| 74 | CLASS="SECT1" |
| 75 | ><A |
| 76 | NAME="GUIDECDROMEXAMPLES" |
| 77 | ></A |
| 78 | >CDROM Examples</H1 |
| 79 | ><P |
| 80 | ></P |
| 81 | ><DIV |
| 82 | CLASS="SECT2" |
| 83 | ><H2 |
| 84 | CLASS="SECT2" |
| 85 | ><A |
| 86 | NAME="AEN393" |
| 87 | ></A |
| 88 | >Listing CD-ROM drives</H2 |
| 89 | ><P |
| 90 | ><PRE |
| 91 | CLASS="PROGRAMLISTING" |
| 92 | > #include "SDL.h" |
| 93 | |
| 94 | /* Initialize SDL first */ |
| 95 | if ( SDL_Init(SDL_INIT_CDROM) < 0 ) { |
| 96 | fprintf(stderr, "Couldn't initialize SDL: %s\n",SDL_GetError()); |
| 97 | exit(1); |
| 98 | } |
| 99 | atexit(SDL_Quit); |
| 100 | |
| 101 | /* Find out how many CD-ROM drives are connected to the system */ |
| 102 | printf("Drives available: %d\n", SDL_CDNumDrives()); |
| 103 | for ( i=0; i<SDL_CDNumDrives(); ++i ) { |
| 104 | printf("Drive %d: \"%s\"\n", i, SDL_CDName(i)); |
| 105 | }</PRE |
| 106 | ></P |
| 107 | ></DIV |
| 108 | ><DIV |
| 109 | CLASS="SECT2" |
| 110 | ><H2 |
| 111 | CLASS="SECT2" |
| 112 | ><A |
| 113 | NAME="AEN397" |
| 114 | ></A |
| 115 | >Opening the default drive</H2 |
| 116 | ><P |
| 117 | ><PRE |
| 118 | CLASS="PROGRAMLISTING" |
| 119 | > SDL_CD *cdrom; |
| 120 | CDstatus status; |
| 121 | char *status_str; |
| 122 | |
| 123 | cdrom = SDL_CDOpen(0); |
| 124 | if ( cdrom == NULL ) { |
| 125 | fprintf(stderr, "Couldn't open default CD-ROM drive: %s\n", |
| 126 | SDL_GetError()); |
| 127 | exit(2); |
| 128 | } |
| 129 | |
| 130 | status = SDL_CDStatus(cdrom); |
| 131 | switch (status) { |
| 132 | case CD_TRAYEMPTY: |
| 133 | status_str = "tray empty"; |
| 134 | break; |
| 135 | case CD_STOPPED: |
| 136 | status_str = "stopped"; |
| 137 | break; |
| 138 | case CD_PLAYING: |
| 139 | status_str = "playing"; |
| 140 | break; |
| 141 | case CD_PAUSED: |
| 142 | status_str = "paused"; |
| 143 | break; |
| 144 | case CD_ERROR: |
| 145 | status_str = "error state"; |
| 146 | break; |
| 147 | } |
| 148 | printf("Drive status: %s\n", status_str); |
| 149 | if ( status >= CD_PLAYING ) { |
| 150 | int m, s, f; |
| 151 | FRAMES_TO_MSF(cdrom->cur_frame, &m, &s, &f); |
| 152 | printf("Currently playing track %d, %d:%2.2d\n", |
| 153 | cdrom->track[cdrom->cur_track].id, m, s); |
| 154 | }</PRE |
| 155 | ></P |
| 156 | ></DIV |
| 157 | ><DIV |
| 158 | CLASS="SECT2" |
| 159 | ><H2 |
| 160 | CLASS="SECT2" |
| 161 | ><A |
| 162 | NAME="AEN401" |
| 163 | ></A |
| 164 | >Listing the tracks on a CD</H2 |
| 165 | ><P |
| 166 | ><PRE |
| 167 | CLASS="PROGRAMLISTING" |
| 168 | > SDL_CD *cdrom; /* Assuming this has already been set.. */ |
| 169 | int i; |
| 170 | int m, s, f; |
| 171 | |
| 172 | SDL_CDStatus(cdrom); |
| 173 | printf("Drive tracks: %d\n", cdrom->numtracks); |
| 174 | for ( i=0; i<cdrom->numtracks; ++i ) { |
| 175 | FRAMES_TO_MSF(cdrom->track[i].length, &m, &s, &f); |
| 176 | if ( f > 0 ) |
| 177 | ++s; |
| 178 | printf("\tTrack (index %d) %d: %d:%2.2d\n", i, |
| 179 | cdrom->track[i].id, m, s); |
| 180 | }</PRE |
| 181 | ></P |
| 182 | ></DIV |
| 183 | ><DIV |
| 184 | CLASS="SECT2" |
| 185 | ><H2 |
| 186 | CLASS="SECT2" |
| 187 | ><A |
| 188 | NAME="AEN405" |
| 189 | ></A |
| 190 | >Play an entire CD</H2 |
| 191 | ><P |
| 192 | ><PRE |
| 193 | CLASS="PROGRAMLISTING" |
| 194 | > SDL_CD *cdrom; /* Assuming this has already been set.. */ |
| 195 | |
| 196 | // Play entire CD: |
| 197 | if ( CD_INDRIVE(SDL_CDStatus(cdrom)) ) |
| 198 | SDL_CDPlayTracks(cdrom, 0, 0, 0, 0); |
| 199 | |
| 200 | // Play last track: |
| 201 | if ( CD_INDRIVE(SDL_CDStatus(cdrom)) ) { |
| 202 | SDL_CDPlayTracks(cdrom, cdrom->numtracks-1, 0, 0, 0); |
| 203 | } |
| 204 | |
| 205 | // Play first and second track and 10 seconds of third track: |
| 206 | if ( CD_INDRIVE(SDL_CDStatus(cdrom)) ) |
| 207 | SDL_CDPlayTracks(cdrom, 0, 0, 2, CD_FPS * 10);</PRE |
| 208 | ></P |
| 209 | ></DIV |
| 210 | ></DIV |
| 211 | ><DIV |
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| 213 | ><HR |
| 214 | ALIGN="LEFT" |
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| 221 | ><TR |
| 222 | ><TD |
| 223 | WIDTH="33%" |
| 224 | ALIGN="left" |
| 225 | VALIGN="top" |
| 226 | ><A |
| 227 | HREF="guideaudioexamples.html" |
| 228 | ACCESSKEY="P" |
| 229 | >Prev</A |
| 230 | ></TD |
| 231 | ><TD |
| 232 | WIDTH="34%" |
| 233 | ALIGN="center" |
| 234 | VALIGN="top" |
| 235 | ><A |
| 236 | HREF="index.html" |
| 237 | ACCESSKEY="H" |
| 238 | >Home</A |
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| 243 | VALIGN="top" |
| 244 | ><A |
| 245 | HREF="guidetimeexamples.html" |
| 246 | ACCESSKEY="N" |
| 247 | >Next</A |
| 248 | ></TD |
| 249 | ></TR |
| 250 | ><TR |
| 251 | ><TD |
| 252 | WIDTH="33%" |
| 253 | ALIGN="left" |
| 254 | VALIGN="top" |
| 255 | >Audio Examples</TD |
| 256 | ><TD |
| 257 | WIDTH="34%" |
| 258 | ALIGN="center" |
| 259 | VALIGN="top" |
| 260 | ><A |
| 261 | HREF="guideexamples.html" |
| 262 | ACCESSKEY="U" |
| 263 | >Up</A |
| 264 | ></TD |
| 265 | ><TD |
| 266 | WIDTH="33%" |
| 267 | ALIGN="right" |
| 268 | VALIGN="top" |
| 269 | >Time Examples</TD |
| 270 | ></TR |
| 271 | ></TABLE |
| 272 | ></DIV |
| 273 | ></BODY |
| 274 | ></HTML |
| 275 | > |