Mercurial > sdl-ios-xcode
view include/SDL_cpuinfo.h @ 1180:bdcb8bb4c831
From: Tyler Montbriand <tsm@accesscomm.ca>
To: sdl@libsdl.org
Date: Fri, 30 Sep 2005 02:24:50 -0600
Subject: [SDL] WinCE timers, continued
Here's a strange timer for Windows CE that doesn't ignore time across
suspends. It uses GetSystemTime to keep the time continuous, and GetTicks to
get finer-grained readings than 1 second. It detects the difference between
the GetTicks time and GetSystemTime time on power-on to keep the error within
one second max.
It's not a patch on the current win32 timer code -- took one look at that and
figured it had more than enough #ifdefs already. It's windows-ce specific.
Another thing I've noticed is that the Windows CE 4.0 and newer API has
functions warn processes about suspends. This is something SDL REALLY needs
for audio in particular, because turning it off while it's playing causes
anything that uses audio to hardlock the system on power-on. Unfortunately I
don't have 4.0 to play with. :(
author | Ryan C. Gordon <icculus@icculus.org> |
---|---|
date | Tue, 22 Nov 2005 07:10:07 +0000 |
parents | ca06a994f03c |
children | c9b51268668f |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2004 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with this library; if not, write to the Free Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA Sam Lantinga slouken@libsdl.org */ #ifdef SAVE_RCSID static char rcsid = "@(#) $Id$"; #endif /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ /* CPU feature detection for SDL */ #ifndef _SDL_cpuinfo_h #define _SDL_cpuinfo_h #include "begin_code.h" /* Set up for C function definitions, even when using C++ */ #ifdef __cplusplus extern "C" { #endif /* This function returns true if the CPU has the RDTSC instruction */ extern DECLSPEC SDL_bool SDLCALL SDL_HasRDTSC(); /* This function returns true if the CPU has MMX features */ extern DECLSPEC SDL_bool SDLCALL SDL_HasMMX(); /* This function returns true if the CPU has MMX Ext. features */ extern DECLSPEC SDL_bool SDLCALL SDL_HasMMXExt(); /* This function returns true if the CPU has 3DNow features */ extern DECLSPEC SDL_bool SDLCALL SDL_Has3DNow(); /* This function returns true if the CPU has 3DNow! Ext. features */ extern DECLSPEC SDL_bool SDLCALL SDL_Has3DNowExt(); /* This function returns true if the CPU has SSE features */ extern DECLSPEC SDL_bool SDLCALL SDL_HasSSE(); /* This function returns true if the CPU has SSE2 features */ extern DECLSPEC SDL_bool SDLCALL SDL_HasSSE2(); /* This function returns true if the CPU has AltiVec features */ extern DECLSPEC SDL_bool SDLCALL SDL_HasAltiVec(); /* Ends C function definitions when using C++ */ #ifdef __cplusplus } #endif #include "close_code.h" #endif /* _SDL_cpuinfo_h */