Mercurial > sdl-ios-xcode
view docs/html/sdlseteventfilter.html @ 4390:725e506f6243 SDL-1.2
Fixed bug #895
Markus Rothe 2009-12-07 09:32:46 PST
Check if libspe2 is available
Building on PowerPC64 results in:
[...]
In file included from ./src/video/ps3/SDL_ps3events_c.h:33,
from ./src/video/ps3/SDL_ps3video.c:32:
./src/video/ps3/SDL_ps3video.h:34:21: error: libspe2.h: No such file or
directory
In file included from ./src/video/ps3/SDL_ps3events_c.h:33,
from ./src/video/ps3/SDL_ps3video.c:32:
./src/video/ps3/SDL_ps3video.h:75: error: expected specifier-qualifier-list
before 'spe_context_ptr_t'
./src/video/ps3/SDL_ps3video.c:78: error: expected '=', ',', ';', 'asm' or
'__attribute__' before 'fb_writer_spu'
./src/video/ps3/SDL_ps3video.c: In function 'PS3_VideoInit':
./src/video/ps3/SDL_ps3video.c:167: error: 'spu_data_t' has no member named
'program'
./src/video/ps3/SDL_ps3video.c:167: error: 'fb_writer_spu' undeclared (first
use in this function)
[...]
The problem is that the ps3 video driver is being build regardless if libspe2
is installed or not. The attached patch fixes this problem.
[ Note: The other headers that are being checked for are coming from the linux
headers package on powerpc64. As a result these are also available if you're on
a generic powerpc64 machine and not a PS3 only. ]
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Fri, 11 Dec 2009 15:14:13 +0000 |
parents | 355632dca928 |
children |
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<HTML ><HEAD ><TITLE >SDL_SetEventFilter</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+ "><LINK REL="HOME" TITLE="SDL Library Documentation" HREF="index.html"><LINK REL="UP" TITLE="Event Functions." HREF="eventfunctions.html"><LINK REL="PREVIOUS" TITLE="SDL_PushEvent" HREF="sdlpushevent.html"><LINK REL="NEXT" TITLE="SDL_GetEventFilter" HREF="sdlgeteventfilter.html"></HEAD ><BODY CLASS="REFENTRY" BGCOLOR="#FFF8DC" TEXT="#000000" LINK="#0000ee" VLINK="#551a8b" ALINK="#ff0000" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >SDL Library Documentation</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="sdlpushevent.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="sdlgeteventfilter.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="SDLSETEVENTFILTER" ></A >SDL_SetEventFilter</H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN5575" ></A ><H2 >Name</H2 >SDL_SetEventFilter -- Sets up a filter to process all events before they are posted to the event queue.</DIV ><DIV CLASS="REFSYNOPSISDIV" ><A NAME="AEN5578" ></A ><H2 >Synopsis</H2 ><DIV CLASS="FUNCSYNOPSIS" ><A NAME="AEN5579" ></A ><P ></P ><PRE CLASS="FUNCSYNOPSISINFO" >#include "SDL.h"</PRE ><P ><CODE ><CODE CLASS="FUNCDEF" >void <B CLASS="FSFUNC" >SDL_SetEventFilter</B ></CODE >(SDL_EventFilter filter);</CODE ></P ><P ></P ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN5585" ></A ><H2 >Description</H2 ><P >This function sets up a filter to process all events before they are posted to the event queue. This is a very powerful and flexible feature. The filter is prototyped as: <PRE CLASS="PROGRAMLISTING" >typedef int (*SDL_EventFilter)(const SDL_Event *event);</PRE > If the filter returns <SPAN CLASS="RETURNVALUE" >1</SPAN >, then the event will be added to the internal queue. If it returns <SPAN CLASS="RETURNVALUE" >0</SPAN >, then the event will be dropped from the queue. This allows selective filtering of dynamically.</P ><P >There is one caveat when dealing with the <TT CLASS="LITERAL" >SDL_QUITEVENT</TT > event type. The event filter is only called when the window manager desires to close the application window. If the event filter returns 1, then the window will be closed, otherwise the window will remain open if possible. If the quit event is generated by an interrupt signal, it will bypass the internal queue and be delivered to the application at the next event poll.</P ><DIV CLASS="NOTE" ><BLOCKQUOTE CLASS="NOTE" ><P ><B >Note: </B >Events pushed onto the queue with <A HREF="sdlpushevent.html" ><TT CLASS="FUNCTION" >SDL_PushEvent</TT ></A > or <A HREF="sdlpeepevents.html" ><TT CLASS="FUNCTION" >SDL_PeepEvents</TT ></A > do not get passed through the event filter.</P ></BLOCKQUOTE ></DIV ><DIV CLASS="NOTE" ><BLOCKQUOTE CLASS="NOTE" ><P ><B >Note: </B ><SPAN CLASS="emphasis" ><I CLASS="EMPHASIS" >Be Careful!</I ></SPAN > The event filter function may run in a different thread so be careful what you do within it.</P ></BLOCKQUOTE ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN5602" ></A ><H2 >See Also</H2 ><P ><A HREF="sdlevent.html" ><SPAN CLASS="STRUCTNAME" >SDL_Event</SPAN ></A >, <A HREF="sdlgeteventfilter.html" ><TT CLASS="FUNCTION" >SDL_GetEventFilter</TT ></A >, <A HREF="sdlpushevent.html" ><TT CLASS="FUNCTION" >SDL_PushEvent</TT ></A ></P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="sdlpushevent.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="sdlgeteventfilter.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >SDL_PushEvent</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="eventfunctions.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >SDL_GetEventFilter</TD ></TR ></TABLE ></DIV ></BODY ></HTML >