view docs/html/sdlquitevent.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_QuitEvent</H1
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><H2
>Name</H2
>SDL_QuitEvent&nbsp;--&nbsp;Quit requested event</DIV
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>Structure Definition</H2
><PRE
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>typedef struct{
  Uint8 type
} SDL_QuitEvent;</PRE
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>SDL_QuitEvent</SPAN
> is a member of the <A
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> union and is used whan an event of type <TT
CLASS="LITERAL"
>SDL_QUIT</TT
> is reported.</P
><P
>As can be seen, the SDL_QuitEvent structure serves no useful purpose. The event itself, on the other hand, is very important. If you filter out or ignore a quit event then it is impossible for the user to close the window. On the other hand, if you do accept a quit event then the application window will be closed, and screen updates will still report success event though the application will no longer be visible.</P
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><B
>Note: </B
>The macro <TT
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>SDL_QuitRequested</TT
> will return non-zero if a quit event is pending</P
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