Mercurial > sdl-ios-xcode
annotate docs/html/guidecdromexamples.html @ 553:417f8709e648
There's a bug in the VC7 optimizer relating to the duff loop optimization
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Mon, 02 Dec 2002 02:40:58 +0000 |
| parents | e5bc29de3f0a |
| children | 355632dca928 |
| rev | line source |
|---|---|
| 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 1.64 |
| 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 | |
| 31 WIDTH="100%" | |
| 32 BORDER="0" | |
| 33 CELLPADDING="0" | |
| 34 CELLSPACING="0" | |
| 35 ><TR | |
| 36 ><TH | |
| 37 COLSPAN="3" | |
| 38 ALIGN="center" | |
| 39 >SDL Library Documentation</TH | |
| 40 ></TR | |
| 41 ><TR | |
| 42 ><TD | |
| 43 WIDTH="10%" | |
| 44 ALIGN="left" | |
| 45 VALIGN="bottom" | |
| 46 ><A | |
| 47 HREF="guideaudioexamples.html" | |
| 48 >Prev</A | |
| 49 ></TD | |
| 50 ><TD | |
| 51 WIDTH="80%" | |
| 52 ALIGN="center" | |
| 53 VALIGN="bottom" | |
| 54 >Chapter 4. Examples</TD | |
| 55 ><TD | |
| 56 WIDTH="10%" | |
| 57 ALIGN="right" | |
| 58 VALIGN="bottom" | |
| 59 ><A | |
| 60 HREF="guidetimeexamples.html" | |
| 61 >Next</A | |
| 62 ></TD | |
| 63 ></TR | |
| 64 ></TABLE | |
| 65 ><HR | |
| 66 ALIGN="LEFT" | |
| 67 WIDTH="100%"></DIV | |
| 68 ><DIV | |
| 69 CLASS="SECT1" | |
| 70 ><H1 | |
| 71 CLASS="SECT1" | |
| 72 ><A | |
| 73 NAME="GUIDECDROMEXAMPLES" | |
| 74 >CDROM Examples</A | |
| 75 ></H1 | |
| 76 ><P | |
| 77 ></P | |
| 78 ><DIV | |
| 79 CLASS="SECT2" | |
| 80 ><H2 | |
| 81 CLASS="SECT2" | |
| 82 ><A | |
|
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Sam Lantinga <slouken@lokigames.com>
parents:
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diff
changeset
|
83 NAME="AEN393" |
| 0 | 84 >Listing CD-ROM drives</A |
| 85 ></H2 | |
| 86 ><P | |
| 87 ><PRE | |
| 88 CLASS="PROGRAMLISTING" | |
| 89 > #include "SDL.h" | |
| 90 | |
| 91 /* Initialize SDL first */ | |
| 92 if ( SDL_Init(SDL_INIT_CDROM) < 0 ) { | |
| 93 fprintf(stderr, "Couldn't initialize SDL: %s\n",SDL_GetError()); | |
| 94 exit(1); | |
| 95 } | |
| 96 atexit(SDL_Quit); | |
| 97 | |
| 98 /* Find out how many CD-ROM drives are connected to the system */ | |
| 99 printf("Drives available: %d\n", SDL_CDNumDrives()); | |
| 100 for ( i=0; i<SDL_CDNumDrives(); ++i ) { | |
| 101 printf("Drive %d: \"%s\"\n", i, SDL_CDName(i)); | |
| 102 }</PRE | |
| 103 ></P | |
| 104 ></DIV | |
| 105 ><DIV | |
| 106 CLASS="SECT2" | |
| 107 ><H2 | |
| 108 CLASS="SECT2" | |
| 109 ><A | |
|
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Sam Lantinga <slouken@lokigames.com>
parents:
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diff
changeset
|
110 NAME="AEN397" |
| 0 | 111 >Opening the default drive</A |
| 112 ></H2 | |
| 113 ><P | |
| 114 ><PRE | |
| 115 CLASS="PROGRAMLISTING" | |
| 116 > SDL_CD *cdrom; | |
| 117 CDstatus status; | |
| 118 char *status_str; | |
| 119 | |
| 120 cdrom = SDL_CDOpen(0); | |
| 121 if ( cdrom == NULL ) { | |
| 122 fprintf(stderr, "Couldn't open default CD-ROM drive: %s\n", | |
| 123 SDL_GetError()); | |
| 124 exit(2); | |
| 125 } | |
| 126 | |
| 127 status = SDL_CDStatus(cdrom); | |
| 128 switch (status) { | |
| 129 case CD_TRAYEMPTY: | |
| 130 status_str = "tray empty"; | |
| 131 break; | |
| 132 case CD_STOPPED: | |
| 133 status_str = "stopped"; | |
| 134 break; | |
| 135 case CD_PLAYING: | |
| 136 status_str = "playing"; | |
| 137 break; | |
| 138 case CD_PAUSED: | |
| 139 status_str = "paused"; | |
| 140 break; | |
| 141 case CD_ERROR: | |
| 142 status_str = "error state"; | |
| 143 break; | |
| 144 } | |
| 145 printf("Drive status: %s\n", status_str); | |
| 146 if ( status >= CD_PLAYING ) { | |
| 147 int m, s, f; | |
| 148 FRAMES_TO_MSF(cdrom->cur_frame, &m, &s, &f); | |
| 149 printf("Currently playing track %d, %d:%2.2d\n", | |
| 150 cdrom->track[cdrom->cur_track].id, m, s); | |
| 151 }</PRE | |
| 152 ></P | |
| 153 ></DIV | |
| 154 ><DIV | |
| 155 CLASS="SECT2" | |
| 156 ><H2 | |
| 157 CLASS="SECT2" | |
| 158 ><A | |
|
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55f1f1b3e27d
Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
159 NAME="AEN401" |
| 0 | 160 >Listing the tracks on a CD</A |
| 161 ></H2 | |
| 162 ><P | |
| 163 ><PRE | |
| 164 CLASS="PROGRAMLISTING" | |
| 165 > SDL_CD *cdrom; /* Assuming this has already been set.. */ | |
| 166 int i; | |
| 167 int m, s, f; | |
| 168 | |
| 169 SDL_CDStatus(cdrom); | |
| 170 printf("Drive tracks: %d\n", cdrom->numtracks); | |
| 171 for ( i=0; i<cdrom->numtracks; ++i ) { | |
| 172 FRAMES_TO_MSF(cdrom->track[i].length, &m, &s, &f); | |
| 173 if ( f > 0 ) | |
| 174 ++s; | |
| 175 printf("\tTrack (index %d) %d: %d:%2.2d\n", i, | |
| 176 cdrom->track[i].id, m, s); | |
| 177 }</PRE | |
| 178 ></P | |
| 179 ></DIV | |
| 180 ><DIV | |
| 181 CLASS="SECT2" | |
| 182 ><H2 | |
| 183 CLASS="SECT2" | |
| 184 ><A | |
|
55
55f1f1b3e27d
Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
185 NAME="AEN405" |
| 0 | 186 >Play an entire CD</A |
| 187 ></H2 | |
| 188 ><P | |
| 189 ><PRE | |
| 190 CLASS="PROGRAMLISTING" | |
| 191 > SDL_CD *cdrom; /* Assuming this has already been set.. */ | |
| 192 | |
| 193 // Play entire CD: | |
| 194 if ( CD_INDRIVE(SDL_CDStatus(cdrom)) ) | |
| 195 SDL_CDPlayTracks(cdrom, 0, 0, 0, 0); | |
| 196 | |
| 197 // Play last track: | |
| 198 if ( CD_INDRIVE(SDL_CDStatus(cdrom)) ) { | |
| 199 SDL_CDPlayTracks(cdrom, cdrom->numtracks-1, 0, 0, 0); | |
| 200 } | |
| 201 | |
| 202 // Play first and second track and 10 seconds of third track: | |
| 203 if ( CD_INDRIVE(SDL_CDStatus(cdrom)) ) | |
|
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Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
204 SDL_CDPlayTracks(cdrom, 0, 0, 2, CD_FPS * 10);</PRE |
| 0 | 205 ></P |
| 206 ></DIV | |
| 207 ></DIV | |
| 208 ><DIV | |
| 209 CLASS="NAVFOOTER" | |
| 210 ><HR | |
| 211 ALIGN="LEFT" | |
| 212 WIDTH="100%"><TABLE | |
| 213 WIDTH="100%" | |
| 214 BORDER="0" | |
| 215 CELLPADDING="0" | |
| 216 CELLSPACING="0" | |
| 217 ><TR | |
| 218 ><TD | |
| 219 WIDTH="33%" | |
| 220 ALIGN="left" | |
| 221 VALIGN="top" | |
| 222 ><A | |
| 223 HREF="guideaudioexamples.html" | |
| 224 >Prev</A | |
| 225 ></TD | |
| 226 ><TD | |
| 227 WIDTH="34%" | |
| 228 ALIGN="center" | |
| 229 VALIGN="top" | |
| 230 ><A | |
| 231 HREF="index.html" | |
| 232 >Home</A | |
| 233 ></TD | |
| 234 ><TD | |
| 235 WIDTH="33%" | |
| 236 ALIGN="right" | |
| 237 VALIGN="top" | |
| 238 ><A | |
| 239 HREF="guidetimeexamples.html" | |
| 240 >Next</A | |
| 241 ></TD | |
| 242 ></TR | |
| 243 ><TR | |
| 244 ><TD | |
| 245 WIDTH="33%" | |
| 246 ALIGN="left" | |
| 247 VALIGN="top" | |
| 248 >Audio Examples</TD | |
| 249 ><TD | |
| 250 WIDTH="34%" | |
| 251 ALIGN="center" | |
| 252 VALIGN="top" | |
| 253 ><A | |
| 254 HREF="guideexamples.html" | |
| 255 >Up</A | |
| 256 ></TD | |
| 257 ><TD | |
| 258 WIDTH="33%" | |
| 259 ALIGN="right" | |
| 260 VALIGN="top" | |
| 261 >Time Examples</TD | |
| 262 ></TR | |
| 263 ></TABLE | |
| 264 ></DIV | |
| 265 ></BODY | |
| 266 ></HTML | |
| 267 > |