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

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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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<HTML
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>SDL_ResizeEvent</TITLE
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><H1
><A
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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
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></A
><H2
>Structure Data</H2
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><TABLE
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><TT
CLASS="STRUCTFIELD"
><I
>type</I
></TT
></TD
><TD
ALIGN="LEFT"
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><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
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><P
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><DIV
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><A
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><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
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><H2
>See Also</H2
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><SPAN
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>SDL_Event</SPAN
></A
>,
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>SDL_SetVideoMode</TT
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