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Date: Wed, 23 Jun 2004 17:05:33 -0400 From: Chris Nelson Subject: [SDL] [Patch] WiseGroup MP-8800 / MP-8866 (PS2 Joystick) In the current cvs version, SDL doesn't handle these Playstation2 controller => USB adapters correctly, in linux. It will always assume that the maximum number of joysticks (2 in the case of the MP-8866, 4 in the case of the 8800) are plugged in. This is bad not only because it allows SDL to exaggerate the number of logical joysticks, but primarily because the joystick axes are mapped incorrectly, all over the place, such that the devices are effectively unusable unless you have the maximum number of joysticks plugged in. My changes to src/joystick/linux/SDL_sysjoystick.c build on another's previous work (which was a special case for this very joystick, actually), and fix both of these problems, as well as making the current code a little more general, to allow for others to more easily drop in code for quirky joysticks such as these. I've tested this code under 2.6.7 as well as 2.4.24... Both work as advertised (provided you load the JOYDEV linux code as a module, otherwise they won't work at all, new code or old, but that's another issue entirely). Though this sounds horribly formal, you have my permission to distribute all of my work on this issue under the LGPL. So there.
author Sam Lantinga <slouken@libsdl.org>
date Sun, 25 Jul 2004 18:31:50 +0000
parents b8d311d90021
children 19418e4422cb
line wrap: on
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/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2004 Sam Lantinga
    Copyright (C) 2001  Hsieh-Fu Tsai

    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
    
    Hsieh-Fu Tsai
    clare@setabox.com
*/

#ifndef _SDL_nxvideo_h
#define _SDL_nxvideo_h

#include <microwin/nano-X.h>

#include "SDL_sysvideo.h"

#ifdef ENABLE_NANOX_DEBUG
#define Dprintf printf
#else
#define Dprintf(ignore...)
#endif

// Hidden "this" pointer for the video functions
#define _THIS   SDL_VideoDevice * this

// Private display data
typedef struct NX_SDL_VISUAL {
    int    bpp ;
    Uint32 red_mask ;
    Uint32 green_mask ;
    Uint32 blue_mask ;
} nx_sdl_visual_t ;

struct SDL_PrivateVideoData {
    GR_WINDOW_ID    SDL_Window ;
    GR_WINDOW_ID    FSwindow ;
    // Flag: true if we have been passed a window
    char            * SDL_windowid ;
    GR_GC_ID        GC ;
    unsigned char   * Image ;
    unsigned char   * Image_buff ;	/* for GrArea*/
    unsigned char   * Clientfb;		/* for DirectFB*/
    nx_sdl_visual_t SDL_Visual ;
    // The current list of available video modes
    SDL_Rect        ** modelist ;
    int             currently_fullscreen ;
    // for fullscreen
    int             OffsetX, OffsetY ;
    // for GammaRamp
    Uint16          * GammaRamp_R, * GammaRamp_G, * GammaRamp_B ;
    // for GrArea, r_mask, g_mask, b_mask
    int             pixel_type ;
#ifdef ENABLE_NANOX_DIRECT_FB
    GR_WINDOW_FB_INFO fbinfo;
#endif
} ;

#define SDL_Window           (this -> hidden -> SDL_Window)
#define FSwindow             (this -> hidden -> FSwindow)
#define SDL_windowid         (this -> hidden -> SDL_windowid)
#define SDL_GC               (this -> hidden -> GC)
#define SDL_Image            (this -> hidden -> Image)
#define Image_buff           (this -> hidden -> Image_buff)
#define Clientfb             (this -> hidden -> Clientfb)
#define SDL_Visual           (this -> hidden -> SDL_Visual)
#define SDL_modelist         (this -> hidden -> modelist)
#define currently_fullscreen (this -> hidden -> currently_fullscreen)
#define OffsetX              (this -> hidden -> OffsetX)
#define OffsetY              (this -> hidden -> OffsetY)
#define GammaRamp_R          (this -> hidden -> GammaRamp_R)
#define GammaRamp_G          (this -> hidden -> GammaRamp_G)
#define GammaRamp_B          (this -> hidden -> GammaRamp_B)
#define pixel_type           (this -> hidden -> pixel_type)
#define fbinfo               (this -> hidden -> fbinfo)

#define CI_SIZE 256   // color index size

#endif  // _SDL_nxvideo_h