Mercurial > sdl-ios-xcode
view docs/html/sdlvideoinfo.html @ 1550:31c2b8e4885e
Fixed bug #166
From the autoconf obsolete macros documentation:
Macro: AC_CANONICAL_SYSTEM
Determine the system type and set output variables to the names of the canonical system types. See section Getting the Canonical System Type, for details about the variables this macro sets.
The user is encouraged to use either AC_CANONICAL_BUILD, or AC_CANONICAL_HOST, or AC_CANONICAL_TARGET, depending on the needs. Using AC_CANONICAL_TARGET is enough to run the two other macros.
From the documentation for the canonical environments:
case $target in
i386-*-mach* | i386-*-gnu*)
obj_format=aout emulation=mach bfd_gas=yes ;;
i960-*-bout) obj_format=bout ;;
esac
Note that the above example uses $target because it's taken from a tool which can be built on some architecture ($build), run on another ($host), but yet handle data for a third architecture ($target). Such tools are usually part of a compiler suite, they generate code for a specific $target.
However $target should be meaningless for most packages. If you want to base a decision on the system where your program will be run, make sure you use the $host variable.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Sun, 19 Mar 2006 05:27:22 +0000 |
parents | 355632dca928 |
children |
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<HTML ><HEAD ><TITLE >SDL_VideoInfo</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="Video" HREF="video.html"><LINK REL="PREVIOUS" TITLE="SDL_Surface" HREF="sdlsurface.html"><LINK REL="NEXT" TITLE="SDL_Overlay" HREF="sdloverlay.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="sdlsurface.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="sdloverlay.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="SDLVIDEOINFO" ></A >SDL_VideoInfo</H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN3390" ></A ><H2 >Name</H2 >SDL_VideoInfo -- Video Target information</DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN3393" ></A ><H2 >Structure Definition</H2 ><PRE CLASS="PROGRAMLISTING" >typedef struct{ Uint32 hw_available:1; Uint32 wm_available:1; Uint32 blit_hw:1; Uint32 blit_hw_CC:1; Uint32 blit_hw_A:1; Uint32 blit_sw:1; Uint32 blit_sw_CC:1; Uint32 blit_sw_A:1; Uint32 blit_fill; Uint32 video_mem; SDL_PixelFormat *vfmt; } SDL_VideoInfo;</PRE ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN3396" ></A ><H2 >Structure Data</H2 ><DIV CLASS="INFORMALTABLE" ><A NAME="AEN3398" ></A ><P ></P ><TABLE BORDER="0" CLASS="CALSTABLE" ><TBODY ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="STRUCTFIELD" ><I >hw_available</I ></TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Is it possible to create hardware surfaces?</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="STRUCTFIELD" ><I >wm_available</I ></TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Is there a window manager available</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="STRUCTFIELD" ><I >blit_hw</I ></TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Are hardware to hardware blits accelerated?</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="STRUCTFIELD" ><I >blit_hw_CC</I ></TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Are hardware to hardware colorkey blits accelerated?</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="STRUCTFIELD" ><I >blit_hw_A</I ></TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Are hardware to hardware alpha blits accelerated?</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="STRUCTFIELD" ><I >blit_sw</I ></TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Are software to hardware blits accelerated?</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="STRUCTFIELD" ><I >blit_sw_CC</I ></TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Are software to hardware colorkey blits accelerated?</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="STRUCTFIELD" ><I >blit_sw_A</I ></TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Are software to hardware alpha blits accelerated?</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="STRUCTFIELD" ><I >blit_fill</I ></TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Are color fills accelerated?</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="STRUCTFIELD" ><I >video_mem</I ></TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Total amount of video memory in Kilobytes</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="STRUCTFIELD" ><I >vfmt</I ></TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" ><A HREF="sdlpixelformat.html" >Pixel format</A > of the video device</TD ></TR ></TBODY ></TABLE ><P ></P ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN3446" ></A ><H2 >Description</H2 ><P >This (read-only) structure is returned by <A HREF="sdlgetvideoinfo.html" ><TT CLASS="FUNCTION" >SDL_GetVideoInfo</TT ></A >. It contains information on either the 'best' available mode (if called before <A HREF="sdlsetvideomode.html" ><TT CLASS="FUNCTION" >SDL_SetVideoMode</TT ></A >) or the current video mode.</P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN3453" ></A ><H2 >See Also</H2 ><P ><A HREF="sdlpixelformat.html" ><SPAN CLASS="STRUCTNAME" >SDL_PixelFormat</SPAN ></A >, <A HREF="sdlgetvideoinfo.html" ><TT CLASS="FUNCTION" >SDL_GetVideoInfo</TT ></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="sdlsurface.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="sdloverlay.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >SDL_Surface</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="video.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >SDL_Overlay</TD ></TR ></TABLE ></DIV ></BODY ></HTML >