view docs/html/sdlcdopen.html @ 1166:da33b7e6d181

Date: Tue, 1 Nov 2005 20:25:10 +0100 From: Dirk Mueller Subject: [PATCH] build SDL with nonexecutable stack libSDL is by default marked with an executable stack, which it doesn't actually need. the reason for this is that there are assembler files in the source tree not properly annotated with the "noexec stack" section. As such the linker does a safe-fallback and marks the whole lib as "requires executable stack". the patch below removes this by adding annotations. As far as I can see it shouldn't break anything.
author Sam Lantinga <slouken@libsdl.org>
date Tue, 01 Nov 2005 23:19:59 +0000
parents 355632dca928
children
line wrap: on
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<HTML
><HEAD
><TITLE
>SDL_CDOpen</TITLE
><META
NAME="GENERATOR"
CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+
"><LINK
REL="HOME"
TITLE="SDL Library Documentation"
HREF="index.html"><LINK
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TITLE="CD-ROM"
HREF="cdrom.html"><LINK
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TITLE="SDL_CDName"
HREF="sdlcdname.html"><LINK
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><BODY
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><HR
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><H1
><A
NAME="SDLCDOPEN"
></A
>SDL_CDOpen</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN7274"
></A
><H2
>Name</H2
>SDL_CDOpen&nbsp;--&nbsp;Opens a CD-ROM drive for access.</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN7277"
></A
><H2
>Synopsis</H2
><DIV
CLASS="FUNCSYNOPSIS"
><A
NAME="AEN7278"
></A
><P
></P
><PRE
CLASS="FUNCSYNOPSISINFO"
>#include "SDL.h"</PRE
><P
><CODE
><CODE
CLASS="FUNCDEF"
>SDL_CD *<B
CLASS="FSFUNC"
>SDL_CDOpen</B
></CODE
>(int drive);</CODE
></P
><P
></P
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN7284"
></A
><H2
>Description</H2
><P
>Opens a CD-ROM drive for access.  It returns a <A
HREF="sdlcd.html"
><SPAN
CLASS="STRUCTNAME"
>SDL_CD</SPAN
></A
> structure on success, or <TT
CLASS="LITERAL"
>NULL</TT
> 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
CLASS="LITERAL"
>NULL</TT
> CD-ROM handle. </P
><P
>Drives are numbered starting with 0.  
Drive 0 is the system default CD-ROM.</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN7292"
></A
><H2
>Examples</H2
><PRE
CLASS="PROGRAMLISTING"
>SDL_CD *cdrom;
int cur_track;
int min, sec, frame;
SDL_Init(SDL_INIT_CDROM);
atexit(SDL_Quit);

/* Check for CD drives */
if(!SDL_CDNumDrives()){
  /* None found */
  fprintf(stderr, "No CDROM devices available\n");
  exit(-1);
}

/* Open the default drive */
cdrom=SDL_CDOpen(0);

/* Did if open? Check if cdrom is NULL */
if(!cdrom){
  fprintf(stderr, "Couldn't open drive: %s\n", SDL_GetError());
  exit(-1);
}

/* Print Volume info */
printf("Name: %s\n", SDL_CDName(0));
printf("Tracks: %d\n", cdrom-&#62;numtracks);
for(cur_track=0;cur_track &#60; cdrom-&#62;numtracks; cur_track++){
  FRAMES_TO_MSF(cdrom-&#62;track[cur_track].length, &#38;min, &#38;sec, &#38;frame);
  printf("\tTrack %d: Length %d:%d\n", cur_track, min, sec);
}

SDL_CDClose(cdrom);</PRE
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN7295"
></A
><H2
>See Also</H2
><P
><A
HREF="sdlcd.html"
><SPAN
CLASS="STRUCTNAME"
>SDL_CD</SPAN
></A
>,
<A
HREF="sdlcdtrack.html"
><SPAN
CLASS="STRUCTNAME"
>SDL_CDtrack</SPAN
></A
>,
<A
HREF="sdlcdclose.html"
><TT
CLASS="FUNCTION"
>SDL_CDClose</TT
></A
></P
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