view docs/html/sdlsyswmevent.html @ 4106:12bb6311fd5d SDL-1.2

Hans de Goede fixed bug #495 When running boswars: http://www.boswars.org/ on a machine with intel integrathed graphics it crashes when it tries to play the initial theora splashscreen video: X Error of failed request: BadAlloc (insufficient resources for operation) Major opcode of failed request: 140 (XVideo) Minor opcode of failed request: 19 () Serial number of failed request: 25 Current serial number in output stream: 26 boswars: xcb_xlib.c:41: xcb_xlib_lock: Assertion `!c->xlib.lock' failed. Aborted I recognized this problem from a few years back, when I encountered it while working on the Xv blitter for xmame. The problem is that for some reason creation the Xvport and XvImage succeeds, and failure (lack of resources / hw capability?) is only indicated during the first XvPut[Shm]Image. I've written a patch for SDL using the work around for this I developed for xmame (and which is still used successfully in xmame after many years of usage). I'll admit it isn't very pretty, but after investigating several possibilities this was the best option, any other fixes would need changes to the SDL api and abi.
author Sam Lantinga <slouken@libsdl.org>
date Sat, 29 Dec 2007 02:23:48 +0000
parents 355632dca928
children
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>SDL_SysWMEvent</H1
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><H2
>Name</H2
>SDL_SysWMEvent&nbsp;--&nbsp;Platform-dependent window manager event.</DIV
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><H2
>Description</H2
><P
>The system window manager event contains a pointer to system-specific 
information about unknown window manager events.  If you enable this event
using 
<A
HREF="sdleventstate.html"
><TT
CLASS="FUNCTION"
>SDL_EventState()</TT
></A
>, 
it will be generated whenever unhandled events are received from the window 
manager.  This can be used, for example, to implement cut-and-paste in your 
application.

<PRE
CLASS="PROGRAMLISTING"
>typedef struct {
         Uint8 type;   /* Always SDL_SYSWMEVENT */
         SDL_SysWMmsg *msg;
 } SDL_SysWMEvent;</PRE
>

If you want to obtain system-specific information about the window manager,
you can fill the version member of a <SPAN
CLASS="STRUCTNAME"
>SDL_SysWMinfo</SPAN
> 
structure (details can be found in <TT
CLASS="FILENAME"
>SDL_syswm.h</TT
>, which must be included) using the <TT
CLASS="FUNCTION"
>SDL_VERSION()</TT
> macro found in 
<TT
CLASS="FILENAME"
>SDL_version.h</TT
>, and pass it to the 
function:
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><P
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><P
><CODE
><CODE
CLASS="FUNCDEF"
>int <B
CLASS="FSFUNC"
>SDL_GetWMInfo</B
></CODE
>(SDL_SysWMinfo *info);</CODE
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>SDL_EventState</TT
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