Mercurial > sdl-ios-xcode
view docs/html/sdlcd.html @ 3092:cad1aefa2ed9
Date: Thu, 12 Mar 2009 15:14:38 +0200
From: "Mike Gorchak"
Subject: New QNX patches
In photon.tar.gz there are new files to be placed into ./src/video/photon/
directory.
qnx3.diff - new patches for QNX support. Since I've found a lot of bugs in
the new GF QNX Graphics Framework and I'm suspended development for GF
driver until already found bugs will be fixed and switched to Photon driver
implementation.
sdl.diff - I've found that renderer creation result has not been checked and
SDL shows error like: "there is no current renderer", now SDL will show
correct error which was set be renderer.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Tue, 17 Mar 2009 03:24:22 +0000 (2009-03-17) |
parents | 355632dca928 |
children |
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<HTML ><HEAD ><TITLE >SDL_CD</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+ "><LINK REL="HOME" TITLE="SDL Library Documentation" HREF="index.html"><LINK REL="UP" TITLE="CD-ROM" HREF="cdrom.html"><LINK REL="PREVIOUS" TITLE="SDL_CDClose" HREF="sdlcdclose.html"><LINK REL="NEXT" TITLE="SDL_CDtrack" HREF="sdlcdtrack.html"></HEAD ><BODY CLASS="REFENTRY" BGCOLOR="#FFF8DC" TEXT="#000000" LINK="#0000ee" VLINK="#551a8b" ALINK="#ff0000" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >SDL Library Documentation</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="sdlcdclose.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="sdlcdtrack.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="SDLCD" ></A >SDL_CD</H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN7566" ></A ><H2 >Name</H2 >SDL_CD -- CDROM Drive Information</DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN7569" ></A ><H2 >Structure Definition</H2 ><PRE CLASS="PROGRAMLISTING" >typedef struct{ int id; CDstatus status; int numtracks; int cur_track; int cur_frame; SDL_CDtrack track[SDL_MAX_TRACKS+1]; } SDL_CD;</PRE ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN7572" ></A ><H2 >Structure Data</H2 ><DIV CLASS="INFORMALTABLE" ><A NAME="AEN7574" ></A ><P ></P ><TABLE BORDER="0" CLASS="CALSTABLE" ><TBODY ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="STRUCTFIELD" ><I >id</I ></TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Private drive identifier</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="STRUCTFIELD" ><I >status</I ></TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Drive <A HREF="sdlcdstatus.html" >status</A ></TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="STRUCTFIELD" ><I >numtracks</I ></TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Number of tracks on the CD</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="STRUCTFIELD" ><I >cur_track</I ></TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Current track</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="STRUCTFIELD" ><I >cur_frame</I ></TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Current frame offset within the track</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="STRUCTFIELD" ><I >track</I ></TT >[SDL_MAX_TRACKS+1]</TD ><TD ALIGN="LEFT" VALIGN="TOP" >Array of track descriptions. (see <A HREF="sdlcdtrack.html" ><SPAN CLASS="STRUCTNAME" >SDL_CDtrack</SPAN ></A >)</TD ></TR ></TBODY ></TABLE ><P ></P ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN7604" ></A ><H2 >Description</H2 ><P >An <SPAN CLASS="STRUCTNAME" >SDL_CD</SPAN > structure is returned by <A HREF="sdlcdopen.html" ><TT CLASS="FUNCTION" >SDL_CDOpen</TT ></A >. It represents an opened CDROM device and stores information on the layout of the tracks on the disc.</P ><P >A frame is the base data unit of a CD. <TT CLASS="LITERAL" >CD_FPS</TT > frames is equal to 1 second of music. SDL provides two macros for converting between time and frames: <TT CLASS="LITERAL" >FRAMES_TO_MSF(f, M,S,F)</TT > and <TT CLASS="LITERAL" >MSF_TO_FRAMES</TT >.</P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN7614" ></A ><H2 >Examples</H2 ><PRE CLASS="PROGRAMLISTING" >int min, sec, frame; int frame_offset; FRAMES_TO_MSF(cdrom->cur_frame, &min, &sec, &frame); printf("Current Position: %d minutes, %d seconds, %d frames\n", min, sec, frame); frame_offset=MSF_TO_FRAMES(min, sec, frame);</PRE ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN7617" ></A ><H2 >See Also</H2 ><P ><A HREF="sdlcdopen.html" ><TT CLASS="FUNCTION" >SDL_CDOpen</TT ></A >, <A HREF="sdlcdtrack.html" ><SPAN CLASS="STRUCTNAME" >SDL_CDtrack</SPAN ></A ></P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="sdlcdclose.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="sdlcdtrack.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >SDL_CDClose</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="cdrom.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >SDL_CDtrack</TD ></TR ></TABLE ></DIV ></BODY ></HTML >