Mercurial > sdl-ios-xcode
annotate docs/html/sdlcdopen.html @ 4106:12bb6311fd5d SDL-1.2
Hans de Goede fixed bug #495
When running boswars: http://www.boswars.org/ on a machine with intel
integrathed graphics it crashes when it tries to play the initial theora
splashscreen video:
X Error of failed request: BadAlloc (insufficient resources for operation)
Major opcode of failed request: 140 (XVideo)
Minor opcode of failed request: 19 ()
Serial number of failed request: 25
Current serial number in output stream: 26
boswars: xcb_xlib.c:41: xcb_xlib_lock: Assertion `!c->xlib.lock' failed.
Aborted
I recognized this problem from a few years back, when I encountered it while
working on the Xv blitter for xmame. The problem is that for some reason
creation the Xvport and XvImage succeeds, and failure (lack of resources / hw
capability?) is only indicated during the first XvPut[Shm]Image. I've written a
patch for SDL using the work around for this I developed for xmame (and which
is still used successfully in xmame after many years of usage).
I'll admit it isn't very pretty, but after investigating several possibilities
this was the best option, any other fixes would need changes to the SDL api and
abi.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sat, 29 Dec 2007 02:23:48 +0000 |
| parents | 355632dca928 |
| children |
| rev | line source |
|---|---|
| 0 | 1 <HTML |
| 2 ><HEAD | |
| 3 ><TITLE | |
| 4 >SDL_CDOpen</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_CDName" | |
| 17 HREF="sdlcdname.html"><LINK | |
| 18 REL="NEXT" | |
| 19 TITLE="SDL_CDStatus" | |
| 20 HREF="sdlcdstatus.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="sdlcdname.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="sdlcdstatus.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="SDLCDOPEN" | |
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74 ></A |
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75 >SDL_CDOpen</H1 |
| 0 | 76 ><DIV |
| 77 CLASS="REFNAMEDIV" | |
| 78 ><A | |
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79 NAME="AEN7274" |
| 0 | 80 ></A |
| 81 ><H2 | |
| 82 >Name</H2 | |
| 83 >SDL_CDOpen -- Opens a CD-ROM drive for access.</DIV | |
| 84 ><DIV | |
| 85 CLASS="REFSYNOPSISDIV" | |
| 86 ><A | |
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87 NAME="AEN7277" |
| 0 | 88 ></A |
| 89 ><H2 | |
| 90 >Synopsis</H2 | |
| 91 ><DIV | |
| 92 CLASS="FUNCSYNOPSIS" | |
| 93 ><A | |
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94 NAME="AEN7278" |
| 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 >SDL_CD *<B | |
| 106 CLASS="FSFUNC" | |
| 107 >SDL_CDOpen</B | |
| 108 ></CODE | |
| 109 >(int drive);</CODE | |
| 110 ></P | |
| 111 ><P | |
| 112 ></P | |
| 113 ></DIV | |
| 114 ></DIV | |
| 115 ><DIV | |
| 116 CLASS="REFSECT1" | |
| 117 ><A | |
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118 NAME="AEN7284" |
| 0 | 119 ></A |
| 120 ><H2 | |
| 121 >Description</H2 | |
| 122 ><P | |
| 123 >Opens a CD-ROM drive for access. It returns a <A | |
| 124 HREF="sdlcd.html" | |
| 125 ><SPAN | |
| 126 CLASS="STRUCTNAME" | |
| 127 >SDL_CD</SPAN | |
| 128 ></A | |
| 129 > structure on success, or <TT | |
| 130 CLASS="LITERAL" | |
| 131 >NULL</TT | |
| 132 > if the drive was invalid or busy. This newly opened CD-ROM becomes the default CD used when other CD functions are passed a <TT | |
| 133 CLASS="LITERAL" | |
| 134 >NULL</TT | |
| 135 > CD-ROM handle. </P | |
| 136 ><P | |
| 137 >Drives are numbered starting with 0. | |
| 138 Drive 0 is the system default CD-ROM.</P | |
| 139 ></DIV | |
| 140 ><DIV | |
| 141 CLASS="REFSECT1" | |
| 142 ><A | |
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143 NAME="AEN7292" |
| 0 | 144 ></A |
| 145 ><H2 | |
| 146 >Examples</H2 | |
| 147 ><PRE | |
| 148 CLASS="PROGRAMLISTING" | |
| 149 >SDL_CD *cdrom; | |
| 150 int cur_track; | |
| 151 int min, sec, frame; | |
| 152 SDL_Init(SDL_INIT_CDROM); | |
| 153 atexit(SDL_Quit); | |
| 154 | |
| 155 /* Check for CD drives */ | |
| 156 if(!SDL_CDNumDrives()){ | |
| 157 /* None found */ | |
| 158 fprintf(stderr, "No CDROM devices available\n"); | |
| 159 exit(-1); | |
| 160 } | |
| 161 | |
| 162 /* Open the default drive */ | |
| 163 cdrom=SDL_CDOpen(0); | |
| 164 | |
| 165 /* Did if open? Check if cdrom is NULL */ | |
| 166 if(!cdrom){ | |
| 167 fprintf(stderr, "Couldn't open drive: %s\n", SDL_GetError()); | |
| 168 exit(-1); | |
| 169 } | |
| 170 | |
| 171 /* Print Volume info */ | |
| 172 printf("Name: %s\n", SDL_CDName(0)); | |
| 173 printf("Tracks: %d\n", cdrom->numtracks); | |
| 174 for(cur_track=0;cur_track < cdrom->numtracks; cur_track++){ | |
| 175 FRAMES_TO_MSF(cdrom->track[cur_track].length, &min, &sec, &frame); | |
| 176 printf("\tTrack %d: Length %d:%d\n", cur_track, min, sec); | |
| 177 } | |
| 178 | |
| 179 SDL_CDClose(cdrom);</PRE | |
| 180 ></DIV | |
| 181 ><DIV | |
| 182 CLASS="REFSECT1" | |
| 183 ><A | |
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184 NAME="AEN7295" |
| 0 | 185 ></A |
| 186 ><H2 | |
| 187 >See Also</H2 | |
| 188 ><P | |
| 189 ><A | |
| 190 HREF="sdlcd.html" | |
| 191 ><SPAN | |
| 192 CLASS="STRUCTNAME" | |
| 193 >SDL_CD</SPAN | |
| 194 ></A | |
| 195 >, | |
| 196 <A | |
| 197 HREF="sdlcdtrack.html" | |
| 198 ><SPAN | |
| 199 CLASS="STRUCTNAME" | |
| 200 >SDL_CDtrack</SPAN | |
| 201 ></A | |
| 202 >, | |
| 203 <A | |
| 204 HREF="sdlcdclose.html" | |
| 205 ><TT | |
| 206 CLASS="FUNCTION" | |
| 207 >SDL_CDClose</TT | |
| 208 ></A | |
| 209 ></P | |
| 210 ></DIV | |
| 211 ><DIV | |
| 212 CLASS="NAVFOOTER" | |
| 213 ><HR | |
| 214 ALIGN="LEFT" | |
| 215 WIDTH="100%"><TABLE | |
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216 SUMMARY="Footer navigation table" |
| 0 | 217 WIDTH="100%" |
| 218 BORDER="0" | |
| 219 CELLPADDING="0" | |
| 220 CELLSPACING="0" | |
| 221 ><TR | |
| 222 ><TD | |
| 223 WIDTH="33%" | |
| 224 ALIGN="left" | |
| 225 VALIGN="top" | |
| 226 ><A | |
| 227 HREF="sdlcdname.html" | |
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parents:
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228 ACCESSKEY="P" |
| 0 | 229 >Prev</A |
| 230 ></TD | |
| 231 ><TD | |
| 232 WIDTH="34%" | |
| 233 ALIGN="center" | |
| 234 VALIGN="top" | |
| 235 ><A | |
| 236 HREF="index.html" | |
|
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parents:
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237 ACCESSKEY="H" |
| 0 | 238 >Home</A |
| 239 ></TD | |
| 240 ><TD | |
| 241 WIDTH="33%" | |
| 242 ALIGN="right" | |
| 243 VALIGN="top" | |
| 244 ><A | |
| 245 HREF="sdlcdstatus.html" | |
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803
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parents:
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246 ACCESSKEY="N" |
| 0 | 247 >Next</A |
| 248 ></TD | |
| 249 ></TR | |
| 250 ><TR | |
| 251 ><TD | |
| 252 WIDTH="33%" | |
| 253 ALIGN="left" | |
| 254 VALIGN="top" | |
| 255 >SDL_CDName</TD | |
| 256 ><TD | |
| 257 WIDTH="34%" | |
| 258 ALIGN="center" | |
| 259 VALIGN="top" | |
| 260 ><A | |
| 261 HREF="cdrom.html" | |
|
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parents:
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262 ACCESSKEY="U" |
| 0 | 263 >Up</A |
| 264 ></TD | |
| 265 ><TD | |
| 266 WIDTH="33%" | |
| 267 ALIGN="right" | |
| 268 VALIGN="top" | |
| 269 >SDL_CDStatus</TD | |
| 270 ></TR | |
| 271 ></TABLE | |
| 272 ></DIV | |
| 273 ></BODY | |
| 274 ></HTML | |
| 275 > |