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In testdyngl.c the event type was being anded (&) with SDL_KEYDOWN and if the result was none zero the program was quiting. This is very weird because it was working earlier this week. I added some more trace code to SDL_x11events.c In SDL_X11opengl.c I modified SDL_GL_GetSwapInterval() so that it returns a pretty good value even if you have the SGI swap extension instead of the MESA swap extension. I just saved the value you set and return it too you.
author Bob Pendleton <bob@pendleton.com>
date Fri, 07 Mar 2008 23:57:15 +0000
parents 355632dca928
children
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<HTML
><HEAD
><TITLE
>SDL_DisplayFormat</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="Video"
HREF="video.html"><LINK
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TITLE="SDL_FillRect"
HREF="sdlfillrect.html"><LINK
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TITLE="SDL_DisplayFormatAlpha"
HREF="sdldisplayformatalpha.html"></HEAD
><BODY
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><TR
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>SDL Library Documentation</TH
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><TR
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><HR
ALIGN="LEFT"
WIDTH="100%"></DIV
><H1
><A
NAME="SDLDISPLAYFORMAT"
></A
>SDL_DisplayFormat</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN2394"
></A
><H2
>Name</H2
>SDL_DisplayFormat&nbsp;--&nbsp;Convert a surface to the display format</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN2397"
></A
><H2
>Synopsis</H2
><DIV
CLASS="FUNCSYNOPSIS"
><A
NAME="AEN2398"
></A
><P
></P
><PRE
CLASS="FUNCSYNOPSISINFO"
>#include "SDL.h"</PRE
><P
><CODE
><CODE
CLASS="FUNCDEF"
>SDL_Surface *<B
CLASS="FSFUNC"
>SDL_DisplayFormat</B
></CODE
>(SDL_Surface *surface);</CODE
></P
><P
></P
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN2404"
></A
><H2
>Description</H2
><P
>This function takes a surface and copies it to a new surface of the
pixel format and colors of the video framebuffer, suitable for fast
blitting onto the display surface.  It calls
<A
HREF="sdlconvertsurface.html"
>SDL_ConvertSurface</A
></P
><P
>If you want to take advantage of hardware colorkey or alpha blit
acceleration, you should set the colorkey and alpha value before
calling this function.</P
><P
>If you want an alpha channel, see <A
HREF="sdldisplayformatalpha.html"
>SDL_DisplayFormatAlpha</A
>.</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN2411"
></A
><H2
>Return Value</H2
><P
>If the conversion fails or runs out of memory, it returns
<SPAN
CLASS="RETURNVALUE"
>NULL</SPAN
></P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN2415"
></A
><H2
>See Also</H2
><P
><A
HREF="sdlconvertsurface.html"
><TT
CLASS="FUNCTION"
>SDL_ConvertSurface</TT
></A
>,
<A
HREF="sdldisplayformatalpha.html"
><TT
CLASS="FUNCTION"
>SDL_DisplayFormatAlpha</TT
></A
>
<A
HREF="sdlsetalpha.html"
><TT
CLASS="FUNCTION"
>SDL_SetAlpha</TT
></A
>,
<A
HREF="sdlsetcolorkey.html"
><TT
CLASS="FUNCTION"
>SDL_SetColorKey</TT
></A
>,
<A
HREF="sdlsurface.html"
><SPAN
CLASS="STRUCTNAME"
>SDL_Surface</SPAN
></A
></P
></DIV
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><A
HREF="sdlfillrect.html"
ACCESSKEY="P"
>Prev</A
></TD
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>Home</A
></TD
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>Next</A
></TD
></TR
><TR
><TD
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>SDL_FillRect</TD
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>Up</A
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>SDL_DisplayFormatAlpha</TD
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>