view include/SDL_cpuinfo.h @ 1551:02e19471a694

Fixed bug #4 [Note: I'm applying this patch since it's a cleaner version of what's already implemented, and supports this controller on older kernels. I'll ask to make sure this doesn't break on the new kernels where it's no longer necessary] Date: Mon, 21 Mar 2005 09:41:11 -0500 From: Chris Nelson Subject: SDL Patch Hey, Ryan. I submitted the following patch about a year ago. It's just a simple patch for the linux port, to make multiple joysticks each appear to SDL as their own device, if they are on the same USB port (specifically, these guys <http://www.consoleplus.co.uk/product_info.php?pName=super-joybox-5-quad-joypad-converter>, which allow 4 Playstation2 controllers to be accessed via a single USB port). Without this patch, SDL pretty much drops the ball, and reports that there are 4 joysticks available when less than that number are plugged in. My work built upon the work of another person with the same device. When I submitted the patch to the list, he tested it, but it didn't work for him, so the patch was never accepted. Maybe about 3 times in the past year, I've tried to email the guy, to see if he couldn't run my new version, complete with debug code to diagnose the problem he was having. He never got back to me. So, I'm attaching the patch. I wish I knew why it didn't work for him, but I've been using it for the last year with no problems. Let me know if you need any more information, or have any ideas as to how I could test it. I'd like to see it in the tree, but I want to make sure it works. -Chris
author Sam Lantinga <slouken@libsdl.org>
date Sun, 19 Mar 2006 06:31:34 +0000
parents ef9a9064bff2
children 782fd950bd46 c121d94672cb a1b03ba2fcd0
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/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2006 Sam Lantinga

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 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
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    Sam Lantinga
    slouken@libsdl.org
*/

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/* CPU feature detection for SDL                                       */

#ifndef _SDL_cpuinfo_h
#define _SDL_cpuinfo_h

#include "SDL_stdinc.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(void);

/* This function returns true if the CPU has MMX features
 */
extern DECLSPEC SDL_bool SDLCALL SDL_HasMMX(void);

/* This function returns true if the CPU has MMX Ext. features
 */
extern DECLSPEC SDL_bool SDLCALL SDL_HasMMXExt(void);

/* This function returns true if the CPU has 3DNow features
 */
extern DECLSPEC SDL_bool SDLCALL SDL_Has3DNow(void);

/* This function returns true if the CPU has 3DNow! Ext. features
 */
extern DECLSPEC SDL_bool SDLCALL SDL_Has3DNowExt(void);

/* This function returns true if the CPU has SSE features
 */
extern DECLSPEC SDL_bool SDLCALL SDL_HasSSE(void);

/* This function returns true if the CPU has SSE2 features
 */
extern DECLSPEC SDL_bool SDLCALL SDL_HasSSE2(void);

/* This function returns true if the CPU has AltiVec features
 */
extern DECLSPEC SDL_bool SDLCALL SDL_HasAltiVec(void);

/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif
#include "close_code.h"

#endif /* _SDL_cpuinfo_h */