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1 <HTML
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2 ><HEAD
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3 ><TITLE
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4 >CDROM Examples</TITLE
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5 ><META
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6 NAME="GENERATOR"
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7 CONTENT="Modular DocBook HTML Stylesheet Version 1.61
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8 "><LINK
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9 REL="HOME"
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10 TITLE="SDL Library Documentation"
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11 HREF="index.html"><LINK
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12 REL="UP"
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13 TITLE="Examples"
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14 HREF="guideexamples.html"><LINK
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15 REL="PREVIOUS"
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16 TITLE="Audio Examples"
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17 HREF="guideaudioexamples.html"><LINK
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18 REL="NEXT"
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19 TITLE="Time Examples"
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20 HREF="guidetimeexamples.html"></HEAD
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21 ><BODY
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22 CLASS="SECT1"
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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 ><DIV
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29 CLASS="NAVHEADER"
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30 ><TABLE
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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 ><TR
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36 ><TH
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37 COLSPAN="3"
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38 ALIGN="center"
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39 >SDL Library Documentation</TH
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40 ></TR
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41 ><TR
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42 ><TD
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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 ><A
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47 HREF="guideaudioexamples.html"
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48 >Prev</A
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49 ></TD
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50 ><TD
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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 >Chapter 4. Examples</TD
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55 ><TD
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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 ><A
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60 HREF="guidetimeexamples.html"
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61 >Next</A
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62 ></TD
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63 ></TR
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64 ></TABLE
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65 ><HR
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66 ALIGN="LEFT"
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67 WIDTH="100%"></DIV
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68 ><DIV
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69 CLASS="SECT1"
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70 ><H1
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71 CLASS="SECT1"
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72 ><A
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73 NAME="GUIDECDROMEXAMPLES"
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74 >CDROM Examples</A
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75 ></H1
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76 ><P
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77 ></P
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78 ><DIV
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79 CLASS="SECT2"
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80 ><H2
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81 CLASS="SECT2"
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82 ><A
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83 NAME="AEN354"
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84 >Listing CD-ROM drives</A
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85 ></H2
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86 ><P
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87 ><PRE
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88 CLASS="PROGRAMLISTING"
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89 > #include "SDL.h"
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90
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91 /* Initialize SDL first */
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92 if ( SDL_Init(SDL_INIT_CDROM) < 0 ) {
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93 fprintf(stderr, "Couldn't initialize SDL: %s\n",SDL_GetError());
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94 exit(1);
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95 }
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96 atexit(SDL_Quit);
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97
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98 /* Find out how many CD-ROM drives are connected to the system */
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99 printf("Drives available: %d\n", SDL_CDNumDrives());
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100 for ( i=0; i<SDL_CDNumDrives(); ++i ) {
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101 printf("Drive %d: \"%s\"\n", i, SDL_CDName(i));
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102 }</PRE
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103 ></P
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104 ></DIV
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105 ><DIV
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106 CLASS="SECT2"
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107 ><H2
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108 CLASS="SECT2"
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109 ><A
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110 NAME="AEN358"
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111 >Opening the default drive</A
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112 ></H2
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113 ><P
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114 ><PRE
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115 CLASS="PROGRAMLISTING"
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116 > SDL_CD *cdrom;
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117 CDstatus status;
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118 char *status_str;
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119
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120 cdrom = SDL_CDOpen(0);
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121 if ( cdrom == NULL ) {
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122 fprintf(stderr, "Couldn't open default CD-ROM drive: %s\n",
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123 SDL_GetError());
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124 exit(2);
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125 }
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126
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127 status = SDL_CDStatus(cdrom);
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128 switch (status) {
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129 case CD_TRAYEMPTY:
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130 status_str = "tray empty";
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131 break;
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132 case CD_STOPPED:
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133 status_str = "stopped";
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134 break;
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135 case CD_PLAYING:
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136 status_str = "playing";
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137 break;
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138 case CD_PAUSED:
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139 status_str = "paused";
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140 break;
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141 case CD_ERROR:
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142 status_str = "error state";
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143 break;
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144 }
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145 printf("Drive status: %s\n", status_str);
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146 if ( status >= CD_PLAYING ) {
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147 int m, s, f;
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148 FRAMES_TO_MSF(cdrom->cur_frame, &m, &s, &f);
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149 printf("Currently playing track %d, %d:%2.2d\n",
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150 cdrom->track[cdrom->cur_track].id, m, s);
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151 }</PRE
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152 ></P
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153 ></DIV
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154 ><DIV
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155 CLASS="SECT2"
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156 ><H2
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157 CLASS="SECT2"
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158 ><A
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159 NAME="AEN362"
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160 >Listing the tracks on a CD</A
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161 ></H2
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162 ><P
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163 ><PRE
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164 CLASS="PROGRAMLISTING"
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165 > SDL_CD *cdrom; /* Assuming this has already been set.. */
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166 int i;
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167 int m, s, f;
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168
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169 SDL_CDStatus(cdrom);
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170 printf("Drive tracks: %d\n", cdrom->numtracks);
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171 for ( i=0; i<cdrom->numtracks; ++i ) {
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172 FRAMES_TO_MSF(cdrom->track[i].length, &m, &s, &f);
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173 if ( f > 0 )
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174 ++s;
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175 printf("\tTrack (index %d) %d: %d:%2.2d\n", i,
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176 cdrom->track[i].id, m, s);
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177 }</PRE
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178 ></P
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179 ></DIV
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180 ><DIV
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181 CLASS="SECT2"
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182 ><H2
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183 CLASS="SECT2"
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184 ><A
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185 NAME="AEN366"
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186 >Play an entire CD</A
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187 ></H2
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188 ><P
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189 ><PRE
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190 CLASS="PROGRAMLISTING"
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191 > SDL_CD *cdrom; /* Assuming this has already been set.. */
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192
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193 // Play entire CD:
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194 if ( CD_INDRIVE(SDL_CDStatus(cdrom)) )
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195 SDL_CDPlayTracks(cdrom, 0, 0, 0, 0);
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196
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197 // Play last track:
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198 if ( CD_INDRIVE(SDL_CDStatus(cdrom)) ) {
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199 SDL_CDPlayTracks(cdrom, cdrom->numtracks-1, 0, 0, 0);
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200 }
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201
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202 // Play first and second track and 10 seconds of third track:
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203 if ( CD_INDRIVE(SDL_CDStatus(cdrom)) )
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204 SDL_CDPlayTracks(cdrom, 0, 0, 2, 10);</PRE
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205 ></P
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206 ></DIV
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207 ></DIV
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208 ><DIV
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209 CLASS="NAVFOOTER"
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210 ><HR
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211 ALIGN="LEFT"
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212 WIDTH="100%"><TABLE
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213 WIDTH="100%"
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214 BORDER="0"
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215 CELLPADDING="0"
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216 CELLSPACING="0"
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217 ><TR
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218 ><TD
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219 WIDTH="33%"
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220 ALIGN="left"
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221 VALIGN="top"
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222 ><A
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223 HREF="guideaudioexamples.html"
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224 >Prev</A
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225 ></TD
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226 ><TD
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227 WIDTH="34%"
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228 ALIGN="center"
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229 VALIGN="top"
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230 ><A
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231 HREF="index.html"
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232 >Home</A
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233 ></TD
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234 ><TD
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235 WIDTH="33%"
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236 ALIGN="right"
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237 VALIGN="top"
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238 ><A
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239 HREF="guidetimeexamples.html"
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240 >Next</A
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241 ></TD
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242 ></TR
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243 ><TR
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244 ><TD
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245 WIDTH="33%"
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246 ALIGN="left"
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247 VALIGN="top"
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248 >Audio Examples</TD
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249 ><TD
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250 WIDTH="34%"
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251 ALIGN="center"
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252 VALIGN="top"
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253 ><A
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254 HREF="guideexamples.html"
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255 >Up</A
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256 ></TD
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257 ><TD
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258 WIDTH="33%"
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259 ALIGN="right"
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260 VALIGN="top"
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261 >Time Examples</TD
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262 ></TR
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263 ></TABLE
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264 ></DIV
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265 ></BODY
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266 ></HTML
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267 > |
