view docs/html/sdlvideoinfo.html @ 306:3879bed3395c

Only put surfaces in video memory if there are accelerated blits
author Sam Lantinga <slouken@libsdl.org>
date Sun, 10 Mar 2002 03:38:32 +0000
parents e5bc29de3f0a
children 355632dca928
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><H1
><A
NAME="SDLVIDEOINFO"
>SDL_VideoInfo</A
></H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN3006"
></A
><H2
>Name</H2
>SDL_VideoInfo&nbsp;--&nbsp;Video Target information</DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN3009"
></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
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><H2
>Structure Data</H2
><DIV
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><TT
CLASS="STRUCTFIELD"
><I
>hw_available</I
></TT
></TD
><TD
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>Is it possible to create hardware surfaces?</TD
></TR
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><TT
CLASS="STRUCTFIELD"
><I
>wm_available</I
></TT
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>Is there a window manager available</TD
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><TR
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><TT
CLASS="STRUCTFIELD"
><I
>blit_hw</I
></TT
></TD
><TD
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>Are hardware to hardware blits accelerated?</TD
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><TR
><TD
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><TT
CLASS="STRUCTFIELD"
><I
>blit_hw_CC</I
></TT
></TD
><TD
ALIGN="LEFT"
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>Are hardware to hardware colorkey blits accelerated?</TD
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><TT
CLASS="STRUCTFIELD"
><I
>blit_hw_A</I
></TT
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><TD
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>Are hardware to hardware alpha blits accelerated?</TD
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><TT
CLASS="STRUCTFIELD"
><I
>blit_sw</I
></TT
></TD
><TD
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>Are software to hardware blits accelerated?</TD
></TR
><TR
><TD
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><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"
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><TT
CLASS="STRUCTFIELD"
><I
>blit_sw_A</I
></TT
></TD
><TD
ALIGN="LEFT"
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>Are software to hardware alpha blits accelerated?</TD
></TR
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><TD
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><TT
CLASS="STRUCTFIELD"
><I
>blit_fill</I
></TT
></TD
><TD
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>Are color fills accelerated?</TD
></TR
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><TT
CLASS="STRUCTFIELD"
><I
>video_mem</I
></TT
></TD
><TD
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>Total amount of video memory in Kilobytes</TD
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><TT
CLASS="STRUCTFIELD"
><I
>vfmt</I
></TT
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><A
HREF="sdlpixelformat.html"
>Pixel format</A
> of the video device</TD
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><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
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><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
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