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Fixed bug #89 Date: Sun, 23 Oct 2005 16:39:03 +0200 From: "A. Schmid" <sahib@phreaker.net> Subject: [SDL] no software surfaces with svgalib driver? Hi, I noticed that the SDL (1.2.9) svgalib driver only makes use of linear addressable (framebuffer) video modes. On older systems (like one of mine), linear addressable modes are often not available. Especially for cards with VESA VBE < 2.0 the svgalib vesa driver is unusable, since VESA only supports framebuffering for VBE 2.0 and later. The changes necessary to add support for software surfaces seem to be relatively small. I only had to hack src/video/svga/SDL_svgavideo.c (see attached patch). The code worked fine for me, but it is no more than a proof of concept and should be reviewed (probably has a memory leak when switching modes). It also uses the vgagl library (included in the svgalib package) and needs to be linked against it. -Alex
author Sam Lantinga <slouken@libsdl.org>
date Sun, 19 Mar 2006 12:05:16 +0000
parents 355632dca928
children
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<HTML
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><TITLE
>SDL_ResizeEvent</TITLE
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><H1
><A
NAME="SDLRESIZEEVENT"
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>SDL_ResizeEvent</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN4453"
></A
><H2
>Name</H2
>SDL_ResizeEvent&nbsp;--&nbsp;Window resize event structure</DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN4456"
></A
><H2
>Structure Definition</H2
><PRE
CLASS="PROGRAMLISTING"
>typedef struct{
  Uint8 type;
  int w, h;
} SDL_ResizeEvent;</PRE
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN4459"
></A
><H2
>Structure Data</H2
><DIV
CLASS="INFORMALTABLE"
><A
NAME="AEN4461"
></A
><P
></P
><TABLE
BORDER="0"
CLASS="CALSTABLE"
><TBODY
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="STRUCTFIELD"
><I
>type</I
></TT
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="LITERAL"
>SDL_VIDEORESIZE</TT
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="STRUCTFIELD"
><I
>w</I
></TT
>, <TT
CLASS="STRUCTFIELD"
><I
>h</I
></TT
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>New width and height of the window</TD
></TR
></TBODY
></TABLE
><P
></P
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
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></A
><H2
>Description</H2
><P
><SPAN
CLASS="STRUCTNAME"
>SDL_ResizeEvent</SPAN
> is a member of the <A
HREF="sdlevent.html"
><SPAN
CLASS="STRUCTNAME"
>SDL_Event</SPAN
></A
> union and is used when an event of type <TT
CLASS="LITERAL"
>SDL_VIDEORESIZE</TT
> is reported.</P
><P
>When <TT
CLASS="LITERAL"
>SDL_RESIZABLE</TT
> is passed as a <TT
CLASS="PARAMETER"
><I
>flag</I
></TT
> to <A
HREF="sdlsetvideomode.html"
><TT
CLASS="FUNCTION"
>SDL_SetVideoMode</TT
></A
> the user is allowed to resize the applications window. When the window is resized an <TT
CLASS="LITERAL"
>SDL_VIDEORESIZE</TT
> is report, with the new window width and height values stored in <TT
CLASS="STRUCTFIELD"
><I
>w</I
></TT
> and <TT
CLASS="STRUCTFIELD"
><I
>h</I
></TT
>, respectively. When an <TT
CLASS="LITERAL"
>SDL_VIDEORESIZE</TT
> is recieved the window should be resized to the new dimensions using <A
HREF="sdlsetvideomode.html"
><TT
CLASS="FUNCTION"
>SDL_SetVideoMode</TT
></A
>.</P
></DIV
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CLASS="REFSECT1"
><A
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></A
><H2
>See Also</H2
><P
><A
HREF="sdlevent.html"
><SPAN
CLASS="STRUCTNAME"
>SDL_Event</SPAN
></A
>,
<A
HREF="sdlsetvideomode.html"
><TT
CLASS="FUNCTION"
>SDL_SetVideoMode</TT
></A
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