Mercurial > sdl-ios-xcode
annotate docs/html/sdlcd.html @ 1948:d646f6e1a439
Starting fresh with the X11 driver
author | Sam Lantinga <slouken@libsdl.org> |
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date | Wed, 26 Jul 2006 04:22:32 +0000 |
parents | 355632dca928 |
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rev | line source |
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0 | 1 <HTML |
2 ><HEAD | |
3 ><TITLE | |
4 >SDL_CD</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="CD-ROM" | |
14 HREF="cdrom.html"><LINK | |
15 REL="PREVIOUS" | |
16 TITLE="SDL_CDClose" | |
17 HREF="sdlcdclose.html"><LINK | |
18 REL="NEXT" | |
19 TITLE="SDL_CDtrack" | |
20 HREF="sdlcdtrack.html"></HEAD | |
21 ><BODY | |
22 CLASS="REFENTRY" | |
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="sdlcdclose.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 ></TD | |
57 ><TD | |
58 WIDTH="10%" | |
59 ALIGN="right" | |
60 VALIGN="bottom" | |
61 ><A | |
62 HREF="sdlcdtrack.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 ><H1 | |
72 ><A | |
73 NAME="SDLCD" | |
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74 ></A |
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75 >SDL_CD</H1 |
0 | 76 ><DIV |
77 CLASS="REFNAMEDIV" | |
78 ><A | |
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79 NAME="AEN7566" |
0 | 80 ></A |
81 ><H2 | |
82 >Name</H2 | |
83 >SDL_CD -- CDROM Drive Information</DIV | |
84 ><DIV | |
85 CLASS="REFSECT1" | |
86 ><A | |
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87 NAME="AEN7569" |
0 | 88 ></A |
89 ><H2 | |
90 >Structure Definition</H2 | |
91 ><PRE | |
92 CLASS="PROGRAMLISTING" | |
93 >typedef struct{ | |
94 int id; | |
95 CDstatus status; | |
96 int numtracks; | |
97 int cur_track; | |
98 int cur_frame; | |
99 SDL_CDtrack track[SDL_MAX_TRACKS+1]; | |
100 } SDL_CD;</PRE | |
101 ></DIV | |
102 ><DIV | |
103 CLASS="REFSECT1" | |
104 ><A | |
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105 NAME="AEN7572" |
0 | 106 ></A |
107 ><H2 | |
108 >Structure Data</H2 | |
109 ><DIV | |
110 CLASS="INFORMALTABLE" | |
111 ><A | |
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112 NAME="AEN7574" |
0 | 113 ></A |
114 ><P | |
115 ></P | |
116 ><TABLE | |
117 BORDER="0" | |
118 CLASS="CALSTABLE" | |
119 ><TBODY | |
120 ><TR | |
121 ><TD | |
122 ALIGN="LEFT" | |
123 VALIGN="TOP" | |
124 ><TT | |
125 CLASS="STRUCTFIELD" | |
126 ><I | |
127 >id</I | |
128 ></TT | |
129 ></TD | |
130 ><TD | |
131 ALIGN="LEFT" | |
132 VALIGN="TOP" | |
133 >Private drive identifier</TD | |
134 ></TR | |
135 ><TR | |
136 ><TD | |
137 ALIGN="LEFT" | |
138 VALIGN="TOP" | |
139 ><TT | |
140 CLASS="STRUCTFIELD" | |
141 ><I | |
142 >status</I | |
143 ></TT | |
144 ></TD | |
145 ><TD | |
146 ALIGN="LEFT" | |
147 VALIGN="TOP" | |
148 >Drive <A | |
149 HREF="sdlcdstatus.html" | |
150 >status</A | |
151 ></TD | |
152 ></TR | |
153 ><TR | |
154 ><TD | |
155 ALIGN="LEFT" | |
156 VALIGN="TOP" | |
157 ><TT | |
158 CLASS="STRUCTFIELD" | |
159 ><I | |
160 >numtracks</I | |
161 ></TT | |
162 ></TD | |
163 ><TD | |
164 ALIGN="LEFT" | |
165 VALIGN="TOP" | |
166 >Number of tracks on the CD</TD | |
167 ></TR | |
168 ><TR | |
169 ><TD | |
170 ALIGN="LEFT" | |
171 VALIGN="TOP" | |
172 ><TT | |
173 CLASS="STRUCTFIELD" | |
174 ><I | |
175 >cur_track</I | |
176 ></TT | |
177 ></TD | |
178 ><TD | |
179 ALIGN="LEFT" | |
180 VALIGN="TOP" | |
181 >Current track</TD | |
182 ></TR | |
183 ><TR | |
184 ><TD | |
185 ALIGN="LEFT" | |
186 VALIGN="TOP" | |
187 ><TT | |
188 CLASS="STRUCTFIELD" | |
189 ><I | |
190 >cur_frame</I | |
191 ></TT | |
192 ></TD | |
193 ><TD | |
194 ALIGN="LEFT" | |
195 VALIGN="TOP" | |
196 >Current frame offset within the track</TD | |
197 ></TR | |
198 ><TR | |
199 ><TD | |
200 ALIGN="LEFT" | |
201 VALIGN="TOP" | |
202 ><TT | |
203 CLASS="STRUCTFIELD" | |
204 ><I | |
205 >track</I | |
206 ></TT | |
207 >[SDL_MAX_TRACKS+1]</TD | |
208 ><TD | |
209 ALIGN="LEFT" | |
210 VALIGN="TOP" | |
211 >Array of track descriptions. (see <A | |
212 HREF="sdlcdtrack.html" | |
213 ><SPAN | |
214 CLASS="STRUCTNAME" | |
215 >SDL_CDtrack</SPAN | |
216 ></A | |
217 >)</TD | |
218 ></TR | |
219 ></TBODY | |
220 ></TABLE | |
221 ><P | |
222 ></P | |
223 ></DIV | |
224 ></DIV | |
225 ><DIV | |
226 CLASS="REFSECT1" | |
227 ><A | |
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228 NAME="AEN7604" |
0 | 229 ></A |
230 ><H2 | |
231 >Description</H2 | |
232 ><P | |
233 >An <SPAN | |
234 CLASS="STRUCTNAME" | |
235 >SDL_CD</SPAN | |
236 > structure is returned by <A | |
237 HREF="sdlcdopen.html" | |
238 ><TT | |
239 CLASS="FUNCTION" | |
240 >SDL_CDOpen</TT | |
241 ></A | |
242 >. It represents an opened CDROM device and stores information on the layout of the tracks on the disc.</P | |
243 ><P | |
244 >A frame is the base data unit of a CD. <TT | |
245 CLASS="LITERAL" | |
246 >CD_FPS</TT | |
247 > frames is equal to 1 second of music. SDL provides two macros for converting between time and frames: <TT | |
248 CLASS="LITERAL" | |
249 >FRAMES_TO_MSF(f, M,S,F)</TT | |
250 > and <TT | |
251 CLASS="LITERAL" | |
252 >MSF_TO_FRAMES</TT | |
253 >.</P | |
254 ></DIV | |
255 ><DIV | |
256 CLASS="REFSECT1" | |
257 ><A | |
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258 NAME="AEN7614" |
0 | 259 ></A |
260 ><H2 | |
261 >Examples</H2 | |
262 ><PRE | |
263 CLASS="PROGRAMLISTING" | |
264 >int min, sec, frame; | |
265 int frame_offset; | |
266 | |
267 FRAMES_TO_MSF(cdrom->cur_frame, &min, &sec, &frame); | |
268 printf("Current Position: %d minutes, %d seconds, %d frames\n", min, sec, frame); | |
269 | |
270 frame_offset=MSF_TO_FRAMES(min, sec, frame);</PRE | |
271 ></DIV | |
272 ><DIV | |
273 CLASS="REFSECT1" | |
274 ><A | |
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275 NAME="AEN7617" |
0 | 276 ></A |
277 ><H2 | |
278 >See Also</H2 | |
279 ><P | |
280 ><A | |
281 HREF="sdlcdopen.html" | |
282 ><TT | |
283 CLASS="FUNCTION" | |
284 >SDL_CDOpen</TT | |
285 ></A | |
286 >, | |
287 <A | |
288 HREF="sdlcdtrack.html" | |
289 ><SPAN | |
290 CLASS="STRUCTNAME" | |
291 >SDL_CDtrack</SPAN | |
292 ></A | |
293 ></P | |
294 ></DIV | |
295 ><DIV | |
296 CLASS="NAVFOOTER" | |
297 ><HR | |
298 ALIGN="LEFT" | |
299 WIDTH="100%"><TABLE | |
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300 SUMMARY="Footer navigation table" |
0 | 301 WIDTH="100%" |
302 BORDER="0" | |
303 CELLPADDING="0" | |
304 CELLSPACING="0" | |
305 ><TR | |
306 ><TD | |
307 WIDTH="33%" | |
308 ALIGN="left" | |
309 VALIGN="top" | |
310 ><A | |
311 HREF="sdlcdclose.html" | |
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312 ACCESSKEY="P" |
0 | 313 >Prev</A |
314 ></TD | |
315 ><TD | |
316 WIDTH="34%" | |
317 ALIGN="center" | |
318 VALIGN="top" | |
319 ><A | |
320 HREF="index.html" | |
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321 ACCESSKEY="H" |
0 | 322 >Home</A |
323 ></TD | |
324 ><TD | |
325 WIDTH="33%" | |
326 ALIGN="right" | |
327 VALIGN="top" | |
328 ><A | |
329 HREF="sdlcdtrack.html" | |
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330 ACCESSKEY="N" |
0 | 331 >Next</A |
332 ></TD | |
333 ></TR | |
334 ><TR | |
335 ><TD | |
336 WIDTH="33%" | |
337 ALIGN="left" | |
338 VALIGN="top" | |
339 >SDL_CDClose</TD | |
340 ><TD | |
341 WIDTH="34%" | |
342 ALIGN="center" | |
343 VALIGN="top" | |
344 ><A | |
345 HREF="cdrom.html" | |
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346 ACCESSKEY="U" |
0 | 347 >Up</A |
348 ></TD | |
349 ><TD | |
350 WIDTH="33%" | |
351 ALIGN="right" | |
352 VALIGN="top" | |
353 >SDL_CDtrack</TD | |
354 ></TR | |
355 ></TABLE | |
356 ></DIV | |
357 ></BODY | |
358 ></HTML | |
359 > |