Mercurial > sdl-ios-xcode
view docs/html/sdlwmseticon.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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<HTML ><HEAD ><TITLE >SDL_WM_SetIcon</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="Window Management" HREF="wm.html"><LINK REL="PREVIOUS" TITLE="SDL_WM_GetCaption" HREF="sdlwmgetcaption.html"><LINK REL="NEXT" TITLE="SDL_WM_IconifyWindow" HREF="sdlwmiconifywindow.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="sdlwmgetcaption.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="sdlwmiconifywindow.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="SDLWMSETICON" ></A >SDL_WM_SetIcon</H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN3582" ></A ><H2 >Name</H2 >SDL_WM_SetIcon -- Sets the icon for the display window.</DIV ><DIV CLASS="REFSYNOPSISDIV" ><A NAME="AEN3585" ></A ><H2 >Synopsis</H2 ><DIV CLASS="FUNCSYNOPSIS" ><A NAME="AEN3586" ></A ><P ></P ><PRE CLASS="FUNCSYNOPSISINFO" >#include "SDL.h"</PRE ><P ><CODE ><CODE CLASS="FUNCDEF" >void <B CLASS="FSFUNC" >SDL_WM_SetIcon</B ></CODE >(SDL_Surface *icon, Uint8 *mask);</CODE ></P ><P ></P ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN3592" ></A ><H2 >Description</H2 ><P >Sets the icon for the display window. Win32 icons must be 32x32.</P ><P >This function must be called before the first call to <A HREF="sdlsetvideomode.html" >SDL_SetVideoMode</A >.</P ><P >The <TT CLASS="PARAMETER" ><I >mask</I ></TT > is a bitmask that describes the shape of the icon. If <TT CLASS="PARAMETER" ><I >mask</I ></TT > is NULL, then the shape is determined by the colorkey of <TT CLASS="PARAMETER" ><I >icon</I ></TT >, if any, or makes the icon rectangular (no transparency) otherwise.</P ><P >If <TT CLASS="PARAMETER" ><I >mask</I ></TT > is non-NULL, it points to a bitmap with bits set where the corresponding pixel should be visible. The format of the bitmap is as follows: Scanlines come in the usual top-down order. Each scanline consists of (width / 8) bytes, rounded up. The most significant bit of each byte represents the leftmost pixel.</P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN3603" ></A ><H2 >Example</H2 ><PRE CLASS="PROGRAMLISTING" >SDL_WM_SetIcon(SDL_LoadBMP("icon.bmp"), NULL);</PRE ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN3606" ></A ><H2 >See Also</H2 ><P ><A HREF="sdlsetvideomode.html" ><TT CLASS="FUNCTION" >SDL_SetVideoMode</TT ></A >, <A HREF="sdlwmsetcaption.html" ><TT CLASS="FUNCTION" >SDL_WM_SetCaption</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="sdlwmgetcaption.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="sdlwmiconifywindow.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >SDL_WM_GetCaption</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="wm.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >SDL_WM_IconifyWindow</TD ></TR ></TABLE ></DIV ></BODY ></HTML >