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| Rev | Author | Line No. | Line |
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| 5131 | clevermous | 1 | |
| 2 | > |
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| 3 | > |
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| 4 | >SDL_CD |
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| 5 | > |
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| 6 | NAME="GENERATOR" |
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| 7 | CONTENT="Modular DocBook HTML Stylesheet Version 1.64 |
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| 8 | "> |
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| 9 | REL="HOME" |
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| 10 | TITLE="SDL Library Documentation" |
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| 11 | HREF="index.html"> |
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| 12 | REL="UP" |
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| 13 | TITLE="CD-ROM" |
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| 14 | HREF="cdrom.html"> |
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| 15 | REL="PREVIOUS" |
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| 16 | TITLE="SDL_CDClose" |
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| 17 | HREF="sdlcdclose.html"> |
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| 18 | REL="NEXT" |
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| 19 | TITLE="SDL_CDtrack" |
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| 20 | HREF="sdlcdtrack.html"> |
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| 21 | > |
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| 22 | CLASS="REFENTRY" |
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| 23 | BGCOLOR="#FFF8DC" |
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| 24 | TEXT="#000000" |
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| 25 | LINK="#0000ee" |
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| 26 | VLINK="#551a8b" |
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| 27 | ALINK="#ff0000" |
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| 28 | > |
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| 29 | CLASS="NAVHEADER" |
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| 30 | > |
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| 31 | WIDTH="100%" |
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| 32 | BORDER="0" |
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| 33 | CELLPADDING="0" |
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| 34 | CELLSPACING="0" |
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| 35 | > |
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| 36 | > |
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| 37 | COLSPAN="3" |
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| 38 | ALIGN="center" |
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| 39 | >SDL Library Documentation |
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| 40 | > |
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| 41 | > |
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| 42 | > |
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| 43 | WIDTH="10%" |
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| 44 | ALIGN="left" |
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| 45 | VALIGN="bottom" |
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| 46 | > |
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| 47 | HREF="sdlcdclose.html" |
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| 48 | >Prev |
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| 49 | > |
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| 50 | > |
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| 51 | WIDTH="80%" |
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| 52 | ALIGN="center" |
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| 53 | VALIGN="bottom" |
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| 54 | > |
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| 55 | > |
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| 56 | WIDTH="10%" |
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| 57 | ALIGN="right" |
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| 58 | VALIGN="bottom" |
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| 59 | > |
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| 60 | HREF="sdlcdtrack.html" |
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| 61 | >Next |
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| 62 | > |
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| 63 | > |
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| 64 | > |
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| 65 | > |
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| 66 | ALIGN="LEFT" |
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| 67 | WIDTH="100%"> |
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| 68 | > |
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| 69 | > |
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| 70 | NAME="SDLCD" |
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| 71 | >SDL_CD |
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| 72 | > |
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| 73 | > |
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| 74 | CLASS="REFNAMEDIV" |
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| 75 | > |
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| 76 | NAME="AEN7017" |
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| 77 | > |
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| 78 | > |
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| 79 | >Name |
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| 80 | >SDL_CD -- CDROM Drive Information |
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| 81 | > |
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| 82 | CLASS="REFSECT1" |
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| 83 | > |
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| 84 | NAME="AEN7020" |
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| 85 | > |
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| 86 | > |
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| 87 | >Structure Definition |
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| 88 | > |
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| 89 | CLASS="PROGRAMLISTING" |
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| 90 | >typedef struct{ |
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| 91 | int id; |
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| 92 | CDstatus status; |
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| 93 | int numtracks; |
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| 94 | int cur_track; |
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| 95 | int cur_frame; |
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| 96 | SDL_CDtrack track[SDL_MAX_TRACKS+1]; |
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| 97 | } SDL_CD; |
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| 98 | > |
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| 99 | > |
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| 100 | CLASS="REFSECT1" |
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| 101 | > |
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| 102 | NAME="AEN7023" |
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| 103 | > |
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| 104 | > |
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| 105 | >Structure Data |
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| 106 | > |
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| 107 | CLASS="INFORMALTABLE" |
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| 108 | > |
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| 109 | NAME="AEN7025" |
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| 110 | > |
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| 111 | > |
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| 112 | > |
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| 113 | > |
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| 114 | BORDER="0" |
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| 115 | CLASS="CALSTABLE" |
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| 116 | > |
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| 117 | > |
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| 118 | > |
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| 119 | ALIGN="LEFT" |
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| 120 | VALIGN="TOP" |
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| 121 | > |
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| 122 | CLASS="STRUCTFIELD" |
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| 123 | > |
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| 124 | >id |
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| 125 | > |
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| 126 | > |
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| 127 | > |
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| 128 | ALIGN="LEFT" |
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| 129 | VALIGN="TOP" |
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| 130 | >Private drive identifier |
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| 131 | > |
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| 132 | > |
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| 133 | > |
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| 134 | ALIGN="LEFT" |
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| 135 | VALIGN="TOP" |
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| 136 | > |
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| 137 | CLASS="STRUCTFIELD" |
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| 138 | > |
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| 139 | >status |
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| 140 | > |
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| 141 | > |
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| 142 | > |
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| 143 | ALIGN="LEFT" |
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| 144 | VALIGN="TOP" |
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| 145 | >Drive |
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| 146 | HREF="sdlcdstatus.html" |
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| 147 | >status |
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| 148 | > |
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| 149 | > |
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| 150 | > |
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| 151 | > |
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| 152 | ALIGN="LEFT" |
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| 153 | VALIGN="TOP" |
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| 154 | > |
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| 155 | CLASS="STRUCTFIELD" |
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| 156 | > |
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| 157 | >numtracks |
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| 158 | > |
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| 159 | > |
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| 160 | > |
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| 161 | ALIGN="LEFT" |
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| 162 | VALIGN="TOP" |
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| 163 | >Number of tracks on the CD |
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| 164 | > |
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| 165 | > |
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| 166 | > |
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| 167 | ALIGN="LEFT" |
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| 168 | VALIGN="TOP" |
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| 169 | > |
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| 170 | CLASS="STRUCTFIELD" |
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| 171 | > |
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| 172 | >cur_track |
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| 173 | > |
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| 174 | > |
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| 175 | > |
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| 176 | ALIGN="LEFT" |
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| 177 | VALIGN="TOP" |
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| 178 | >Current track |
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| 179 | > |
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| 180 | > |
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| 181 | > |
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| 182 | ALIGN="LEFT" |
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| 183 | VALIGN="TOP" |
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| 184 | > |
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| 185 | CLASS="STRUCTFIELD" |
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| 186 | > |
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| 187 | >cur_frame |
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| 188 | > |
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| 189 | > |
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| 190 | > |
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| 191 | ALIGN="LEFT" |
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| 192 | VALIGN="TOP" |
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| 193 | >Current frame offset within the track |
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| 194 | > |
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| 195 | > |
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| 196 | > |
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| 197 | ALIGN="LEFT" |
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| 198 | VALIGN="TOP" |
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| 199 | > |
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| 200 | CLASS="STRUCTFIELD" |
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| 201 | > |
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| 202 | >track |
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| 203 | > |
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| 204 | >[SDL_MAX_TRACKS+1] |
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| 205 | > |
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| 206 | ALIGN="LEFT" |
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| 207 | VALIGN="TOP" |
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| 208 | >Array of track descriptions. (see |
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| 209 | HREF="sdlcdtrack.html" |
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| 210 | > |
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| 211 | CLASS="STRUCTNAME" |
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| 212 | >SDL_CDtrack |
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| 213 | > |
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| 214 | >) |
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| 215 | > |
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| 216 | > |
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| 217 | > |
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| 218 | > |
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| 219 | > |
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| 220 | > |
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| 221 | > |
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| 222 | > |
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| 223 | CLASS="REFSECT1" |
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| 224 | > |
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| 225 | NAME="AEN7055" |
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| 226 | > |
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| 227 | > |
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| 228 | >Description |
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| 229 | > |
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| 230 | >An |
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| 231 | CLASS="STRUCTNAME" |
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| 232 | >SDL_CD |
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| 233 | > structure is returned by |
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| 234 | HREF="sdlcdopen.html" |
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| 235 | > |
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| 236 | CLASS="FUNCTION" |
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| 237 | >SDL_CDOpen |
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| 238 | > |
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| 239 | >. It represents an opened CDROM device and stores information on the layout of the tracks on the disc. |
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| 240 | > |
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| 241 | >A frame is the base data unit of a CD. |
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| 242 | CLASS="LITERAL" |
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| 243 | >CD_FPS |
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| 244 | > frames is equal to 1 second of music. SDL provides two macros for converting between time and frames: |
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| 245 | CLASS="LITERAL" |
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| 246 | >FRAMES_TO_MSF(f, M,S,F) |
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| 247 | > and |
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| 248 | CLASS="LITERAL" |
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| 249 | >MSF_TO_FRAMES |
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| 250 | >. |
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| 251 | > |
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| 252 | > |
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| 253 | CLASS="REFSECT1" |
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| 254 | > |
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| 255 | NAME="AEN7065" |
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| 256 | > |
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| 257 | > |
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| 258 | >Examples |
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| 259 | > |
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| 260 | CLASS="PROGRAMLISTING" |
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| 261 | >int min, sec, frame; |
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| 262 | int frame_offset; |
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| 263 | |||
| 264 | FRAMES_TO_MSF(cdrom->cur_frame, &min, &sec, &frame); |
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| 265 | printf("Current Position: %d minutes, %d seconds, %d frames\n", min, sec, frame); |
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| 266 | |||
| 267 | frame_offset=MSF_TO_FRAMES(min, sec, frame); |
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| 268 | > |
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| 269 | > |
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| 270 | CLASS="REFSECT1" |
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| 271 | > |
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| 272 | NAME="AEN7068" |
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| 273 | > |
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| 274 | > |
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| 275 | >See Also |
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| 276 | > |
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| 277 | > |
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| 278 | HREF="sdlcdopen.html" |
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| 279 | > |
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| 280 | CLASS="FUNCTION" |
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| 281 | >SDL_CDOpen |
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| 282 | > |
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| 283 | >, |
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| 284 | |||
| 285 | HREF="sdlcdtrack.html" |
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| 286 | > |
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| 287 | CLASS="STRUCTNAME" |
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| 288 | >SDL_CDtrack |
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| 289 | > |
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| 290 | > |
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| 291 | > |
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| 292 | > |
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| 293 | CLASS="NAVFOOTER" |
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| 294 | > |
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| 295 | ALIGN="LEFT" |
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| 296 | WIDTH="100%"> |
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| 297 | WIDTH="100%" |
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| 298 | BORDER="0" |
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| 299 | CELLPADDING="0" |
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| 300 | CELLSPACING="0" |
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| 301 | > |
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| 302 | > |
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| 303 | WIDTH="33%" |
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| 304 | ALIGN="left" |
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| 305 | VALIGN="top" |
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| 306 | > |
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| 307 | HREF="sdlcdclose.html" |
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| 308 | >Prev |
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| 309 | > |
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| 310 | > |
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| 311 | WIDTH="34%" |
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| 312 | ALIGN="center" |
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| 313 | VALIGN="top" |
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| 314 | > |
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| 315 | HREF="index.html" |
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| 316 | >Home |
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| 317 | > |
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| 318 | > |
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| 319 | WIDTH="33%" |
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| 320 | ALIGN="right" |
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| 321 | VALIGN="top" |
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| 322 | > |
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| 323 | HREF="sdlcdtrack.html" |
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| 324 | >Next |
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| 325 | > |
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| 326 | > |
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| 327 | > |
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| 328 | > |
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| 329 | WIDTH="33%" |
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| 330 | ALIGN="left" |
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| 331 | VALIGN="top" |
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| 332 | >SDL_CDClose |
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| 333 | > |
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| 334 | WIDTH="34%" |
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| 335 | ALIGN="center" |
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| 336 | VALIGN="top" |
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| 337 | > |
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| 338 | HREF="cdrom.html" |
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| 339 | >Up |
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| 340 | > |
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| 341 | > |
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| 342 | WIDTH="33%" |
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| 343 | ALIGN="right" |
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| 344 | VALIGN="top" |
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| 345 | >SDL_CDtrack |
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| 346 | > |
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| 347 | > |
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| 348 | > |
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| 349 | > |
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| 350 | > |
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| 351 | > |