Mercurial > sdl-ios-xcode
annotate docs/html/guidecdromexamples.html @ 4928:930614179450 SDL-1.2
Patch from Haiku's Google Code-In student Daniel Marth, fixes an off-by-one issue in bwindow.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Fri, 03 Dec 2010 16:55:25 -0800 |
| parents | 355632dca928 |
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| rev | line source |
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| 0 | 1 <HTML |
| 2 ><HEAD | |
| 3 ><TITLE | |
| 4 >CDROM Examples</TITLE | |
| 5 ><META | |
| 6 NAME="GENERATOR" | |
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7 CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+ |
| 0 | 8 "><LINK |
| 9 REL="HOME" | |
| 10 TITLE="SDL Library Documentation" | |
| 11 HREF="index.html"><LINK | |
| 12 REL="UP" | |
| 13 TITLE="Examples" | |
| 14 HREF="guideexamples.html"><LINK | |
| 15 REL="PREVIOUS" | |
| 16 TITLE="Audio Examples" | |
| 17 HREF="guideaudioexamples.html"><LINK | |
| 18 REL="NEXT" | |
| 19 TITLE="Time Examples" | |
| 20 HREF="guidetimeexamples.html"></HEAD | |
| 21 ><BODY | |
| 22 CLASS="SECT1" | |
| 23 BGCOLOR="#FFF8DC" | |
| 24 TEXT="#000000" | |
| 25 LINK="#0000ee" | |
| 26 VLINK="#551a8b" | |
| 27 ALINK="#ff0000" | |
| 28 ><DIV | |
| 29 CLASS="NAVHEADER" | |
| 30 ><TABLE | |
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31 SUMMARY="Header navigation table" |
| 0 | 32 WIDTH="100%" |
| 33 BORDER="0" | |
| 34 CELLPADDING="0" | |
| 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" | |
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49 ACCESSKEY="P" |
| 0 | 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" | |
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63 ACCESSKEY="N" |
| 0 | 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" | |
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77 ></A |
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78 >CDROM Examples</H1 |
| 0 | 79 ><P |
| 80 ></P | |
| 81 ><DIV | |
| 82 CLASS="SECT2" | |
| 83 ><H2 | |
| 84 CLASS="SECT2" | |
| 85 ><A | |
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86 NAME="AEN393" |
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87 ></A |
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88 >Listing CD-ROM drives</H2 |
| 0 | 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 | |
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113 NAME="AEN397" |
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114 ></A |
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115 >Opening the default drive</H2 |
| 0 | 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 | |
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162 NAME="AEN401" |
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163 ></A |
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164 >Listing the tracks on a CD</H2 |
| 0 | 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 | |
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188 NAME="AEN405" |
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189 ></A |
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190 >Play an entire CD</H2 |
| 0 | 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)) ) | |
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207 SDL_CDPlayTracks(cdrom, 0, 0, 2, CD_FPS * 10);</PRE |
| 0 | 208 ></P |
| 209 ></DIV | |
| 210 ></DIV | |
| 211 ><DIV | |
| 212 CLASS="NAVFOOTER" | |
| 213 ><HR | |
| 214 ALIGN="LEFT" | |
| 215 WIDTH="100%"><TABLE | |
|
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216 SUMMARY="Footer navigation table" |
| 0 | 217 WIDTH="100%" |
| 218 BORDER="0" | |
| 219 CELLPADDING="0" | |
| 220 CELLSPACING="0" | |
| 221 ><TR | |
| 222 ><TD | |
| 223 WIDTH="33%" | |
| 224 ALIGN="left" | |
| 225 VALIGN="top" | |
| 226 ><A | |
| 227 HREF="guideaudioexamples.html" | |
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228 ACCESSKEY="P" |
| 0 | 229 >Prev</A |
| 230 ></TD | |
| 231 ><TD | |
| 232 WIDTH="34%" | |
| 233 ALIGN="center" | |
| 234 VALIGN="top" | |
| 235 ><A | |
| 236 HREF="index.html" | |
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237 ACCESSKEY="H" |
| 0 | 238 >Home</A |
| 239 ></TD | |
| 240 ><TD | |
| 241 WIDTH="33%" | |
| 242 ALIGN="right" | |
| 243 VALIGN="top" | |
| 244 ><A | |
| 245 HREF="guidetimeexamples.html" | |
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246 ACCESSKEY="N" |
| 0 | 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" | |
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262 ACCESSKEY="U" |
| 0 | 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 > |