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Date: Tue, 27 Jul 2004 17:14:00 +0200 From: "Eckhard Stolberg" Subject: Controller names in SDL for Windows I'm working on an Atari 2600 emulator for different systems that uses the SDL. Some time ago someone created an adaptor that lets you use your old Atari controllers with your computer through the USB port. Some of the Atari controllers require special handling by the emulator, so it would be nice, if it would be possible to detect if any of the controllers connected to the computer is this adaptor. SDL would allow that with the SDL_JoystickName function, but unfortunately it doesn't work properly on Windows. On Linux and MacOSX this function returns the name of the controller, but on Windows you'll only get the name of the joystick driver. Most joysticks nowadays use the generic Microsoft driver, so they all return the same name. In an old MSDN article (http://msdn.microsoft.com/archive/default.asp?url=/archive/en-us/dnarinput/html/msdn_extdirect.asp) Microsoft describes how to read out the OEM controller names from the registry. I have implemented this for the SDL controller handler on Windows, and now reading the joystick name works properly there too.
author Sam Lantinga <slouken@libsdl.org>
date Sat, 21 Aug 2004 03:45:58 +0000
parents b8d311d90021
children 19418e4422cb
line wrap: on
line source

/*
    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