Mercurial > sdl-ios-xcode
annotate docs/html/sdlcdplaytracks.html @ 2328:91e601d9df8b
re: bug#563. checking in some commented out trace code and a fix so that the in testalpha.c the background only flashes when alpha == 255. The problem that is being
fixed is caused by clearing SDL_COPY_RLE_COLORKEY without setting SDL_COPY_RLE_DESIRED in SDL_UnRELSurface.
| author | Bob Pendleton <bob@pendleton.com> |
|---|---|
| date | Fri, 14 Mar 2008 18:17:49 +0000 |
| parents | 355632dca928 |
| children |
| rev | line source |
|---|---|
| 0 | 1 <HTML |
| 2 ><HEAD | |
| 3 ><TITLE | |
| 4 >SDL_CDPlayTracks</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_CDPlay" | |
| 17 HREF="sdlcdplay.html"><LINK | |
| 18 REL="NEXT" | |
| 19 TITLE="SDL_CDPause" | |
| 20 HREF="sdlcdpause.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="sdlcdplay.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="sdlcdpause.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="SDLCDPLAYTRACKS" | |
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74 ></A |
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75 >SDL_CDPlayTracks</H1 |
| 0 | 76 ><DIV |
| 77 CLASS="REFNAMEDIV" | |
| 78 ><A | |
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79 NAME="AEN7375" |
| 0 | 80 ></A |
| 81 ><H2 | |
| 82 >Name</H2 | |
| 83 >SDL_CDPlayTracks -- Play the given CD track(s)</DIV | |
| 84 ><DIV | |
| 85 CLASS="REFSYNOPSISDIV" | |
| 86 ><A | |
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87 NAME="AEN7378" |
| 0 | 88 ></A |
| 89 ><H2 | |
| 90 >Synopsis</H2 | |
| 91 ><DIV | |
| 92 CLASS="FUNCSYNOPSIS" | |
| 93 ><A | |
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94 NAME="AEN7379" |
| 0 | 95 ></A |
| 96 ><P | |
| 97 ></P | |
| 98 ><PRE | |
| 99 CLASS="FUNCSYNOPSISINFO" | |
| 100 >#include "SDL.h"</PRE | |
| 101 ><P | |
| 102 ><CODE | |
| 103 ><CODE | |
| 104 CLASS="FUNCDEF" | |
| 105 >int <B | |
| 106 CLASS="FSFUNC" | |
| 107 >SDL_CDPlayTracks</B | |
| 108 ></CODE | |
| 109 >(SDL_CD *cdrom, int start_track, int start_frame, int ntracks, int nframes));</CODE | |
| 110 ></P | |
| 111 ><P | |
| 112 ></P | |
| 113 ></DIV | |
| 114 ></DIV | |
| 115 ><DIV | |
| 116 CLASS="REFSECT1" | |
| 117 ><A | |
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118 NAME="AEN7385" |
| 0 | 119 ></A |
| 120 ><H2 | |
| 121 >Description</H2 | |
| 122 ><P | |
| 123 ><TT | |
| 124 CLASS="FUNCTION" | |
| 125 >SDL_CDPlayTracks</TT | |
| 126 > plays the given CD starting at track | |
| 127 <TT | |
| 128 CLASS="PARAMETER" | |
| 129 ><I | |
| 130 >start_track</I | |
| 131 ></TT | |
| 132 >, for <TT | |
| 133 CLASS="PARAMETER" | |
| 134 ><I | |
| 135 >ntracks</I | |
| 136 ></TT | |
| 137 > tracks. </P | |
| 138 ><P | |
| 139 ><TT | |
| 140 CLASS="PARAMETER" | |
| 141 ><I | |
| 142 >start_frame</I | |
| 143 ></TT | |
| 144 > is the frame offset, from the beginning of the <TT | |
| 145 CLASS="PARAMETER" | |
| 146 ><I | |
| 147 >start_track</I | |
| 148 ></TT | |
| 149 >, at which to start. <TT | |
| 150 CLASS="PARAMETER" | |
| 151 ><I | |
| 152 >nframes</I | |
| 153 ></TT | |
| 154 > is the frame offset, from the beginning of the last track (<TT | |
| 155 CLASS="PARAMETER" | |
| 156 ><I | |
| 157 >start_track</I | |
| 158 ></TT | |
| 159 >+<TT | |
| 160 CLASS="PARAMETER" | |
| 161 ><I | |
| 162 >ntracks</I | |
| 163 ></TT | |
| 164 >), at which to end playing.</P | |
| 165 ><P | |
| 166 ><TT | |
| 167 CLASS="FUNCTION" | |
| 168 >SDL_CDPlayTracks</TT | |
| 169 > should only be called after calling | |
| 170 <A | |
| 171 HREF="sdlcdstatus.html" | |
| 172 ><TT | |
| 173 CLASS="FUNCTION" | |
| 174 >SDL_CDStatus</TT | |
| 175 ></A | |
| 176 > | |
| 177 to get track information about the CD.</P | |
| 178 ><DIV | |
| 179 CLASS="NOTE" | |
| 180 ><BLOCKQUOTE | |
| 181 CLASS="NOTE" | |
| 182 ><P | |
| 183 ><B | |
| 184 >Note: </B | |
| 185 >Data tracks are ignored.</P | |
| 186 ></BLOCKQUOTE | |
| 187 ></DIV | |
| 188 ></DIV | |
| 189 ><DIV | |
| 190 CLASS="REFSECT1" | |
| 191 ><A | |
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192 NAME="AEN7403" |
| 0 | 193 ></A |
| 194 ><H2 | |
| 195 >Return Value</H2 | |
| 196 ><P | |
| 197 >Returns <SPAN | |
| 198 CLASS="RETURNVALUE" | |
| 199 >0</SPAN | |
| 200 >, or <SPAN | |
| 201 CLASS="RETURNVALUE" | |
| 202 >-1</SPAN | |
| 203 > | |
| 204 if there was an error.</P | |
| 205 ></DIV | |
| 206 ><DIV | |
| 207 CLASS="REFSECT1" | |
| 208 ><A | |
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209 NAME="AEN7408" |
| 0 | 210 ></A |
| 211 ><H2 | |
| 212 >Examples</H2 | |
| 213 ><P | |
| 214 ><PRE | |
| 215 CLASS="PROGRAMLISTING" | |
| 216 >/* assuming cdrom is a previously opened device */ | |
| 217 /* Play the entire CD */ | |
| 218 if(CD_INDRIVE(SDL_CDStatus(cdrom))) | |
| 219 SDL_CDPlayTracks(cdrom, 0, 0, 0, 0); | |
| 220 | |
| 221 /* Play the first track */ | |
| 222 if(CD_INDRIVE(SDL_CDStatus(cdrom))) | |
| 223 SDL_CDPlayTracks(cdrom, 0, 0, 1, 0); | |
| 224 | |
| 225 /* Play first 15 seconds of the 2nd track */ | |
| 226 if(CD_INDRIVE(SDL_CDStatus(cdrom))) | |
| 227 SDL_CDPlayTracks(cdrom, 1, 0, 0, CD_FPS*15);</PRE | |
| 228 > | |
| 229 </P | |
| 230 ></DIV | |
| 231 ><DIV | |
| 232 CLASS="REFSECT1" | |
| 233 ><A | |
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234 NAME="AEN7412" |
| 0 | 235 ></A |
| 236 ><H2 | |
| 237 >See Also</H2 | |
| 238 ><P | |
| 239 ><A | |
| 240 HREF="sdlcdplay.html" | |
| 241 ><TT | |
| 242 CLASS="FUNCTION" | |
| 243 >SDL_CDPlay</TT | |
| 244 ></A | |
| 245 >, | |
| 246 <A | |
| 247 HREF="sdlcdstatus.html" | |
| 248 ><TT | |
| 249 CLASS="FUNCTION" | |
| 250 >SDL_CDStatus</TT | |
| 251 ></A | |
| 252 >, | |
| 253 <A | |
| 254 HREF="sdlcd.html" | |
| 255 ><TT | |
| 256 CLASS="FUNCTION" | |
| 257 >SDL_CD</TT | |
| 258 ></A | |
| 259 ></P | |
| 260 ></DIV | |
| 261 ><DIV | |
| 262 CLASS="NAVFOOTER" | |
| 263 ><HR | |
| 264 ALIGN="LEFT" | |
| 265 WIDTH="100%"><TABLE | |
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266 SUMMARY="Footer navigation table" |
| 0 | 267 WIDTH="100%" |
| 268 BORDER="0" | |
| 269 CELLPADDING="0" | |
| 270 CELLSPACING="0" | |
| 271 ><TR | |
| 272 ><TD | |
| 273 WIDTH="33%" | |
| 274 ALIGN="left" | |
| 275 VALIGN="top" | |
| 276 ><A | |
| 277 HREF="sdlcdplay.html" | |
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278 ACCESSKEY="P" |
| 0 | 279 >Prev</A |
| 280 ></TD | |
| 281 ><TD | |
| 282 WIDTH="34%" | |
| 283 ALIGN="center" | |
| 284 VALIGN="top" | |
| 285 ><A | |
| 286 HREF="index.html" | |
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287 ACCESSKEY="H" |
| 0 | 288 >Home</A |
| 289 ></TD | |
| 290 ><TD | |
| 291 WIDTH="33%" | |
| 292 ALIGN="right" | |
| 293 VALIGN="top" | |
| 294 ><A | |
| 295 HREF="sdlcdpause.html" | |
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296 ACCESSKEY="N" |
| 0 | 297 >Next</A |
| 298 ></TD | |
| 299 ></TR | |
| 300 ><TR | |
| 301 ><TD | |
| 302 WIDTH="33%" | |
| 303 ALIGN="left" | |
| 304 VALIGN="top" | |
| 305 >SDL_CDPlay</TD | |
| 306 ><TD | |
| 307 WIDTH="34%" | |
| 308 ALIGN="center" | |
| 309 VALIGN="top" | |
| 310 ><A | |
| 311 HREF="cdrom.html" | |
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312 ACCESSKEY="U" |
| 0 | 313 >Up</A |
| 314 ></TD | |
| 315 ><TD | |
| 316 WIDTH="33%" | |
| 317 ALIGN="right" | |
| 318 VALIGN="top" | |
| 319 >SDL_CDPause</TD | |
| 320 ></TR | |
| 321 ></TABLE | |
| 322 ></DIV | |
| 323 ></BODY | |
| 324 ></HTML | |
| 325 > |