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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
    Copyright (C) 2002  Greg Haerr <greg@censoft.com>

    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
*/

#include "SDL_keysym.h"
#include "SDL_events_c.h"

#include "SDL_nxevents_c.h"
#include "SDL_nximage_c.h"

// The translation tables from a nanox keysym to a SDL keysym
static SDLKey NX_NONASCII_keymap [MWKEY_LAST + 1] ;

void NX_InitOSKeymap (_THIS)
{
    int i ;

    Dprintf ("enter NX_InitOSKeymap\n") ;

    // Map the nanox scancodes to SDL keysyms
    for (i = 0; i < SDL_TABLESIZE (NX_NONASCII_keymap); ++ i)
        NX_NONASCII_keymap [i] = SDLK_UNKNOWN ;

    NX_NONASCII_keymap [MWKEY_LEFT        & 0xFF] = SDLK_LEFT ;
    NX_NONASCII_keymap [MWKEY_RIGHT       & 0xFF] = SDLK_RIGHT ;
    NX_NONASCII_keymap [MWKEY_UP          & 0xFF] = SDLK_UP ;
    NX_NONASCII_keymap [MWKEY_DOWN        & 0xFF] = SDLK_DOWN ;
    NX_NONASCII_keymap [MWKEY_INSERT      & 0xFF] = SDLK_INSERT ;
    NX_NONASCII_keymap [MWKEY_DELETE      & 0xFF] = SDLK_DELETE ;
    NX_NONASCII_keymap [MWKEY_HOME        & 0xFF] = SDLK_HOME ;
    NX_NONASCII_keymap [MWKEY_END         & 0xFF] = SDLK_END ;
    NX_NONASCII_keymap [MWKEY_PAGEUP      & 0xFF] = SDLK_PAGEUP ;
    NX_NONASCII_keymap [MWKEY_PAGEDOWN    & 0xFF] = SDLK_PAGEDOWN ;

    NX_NONASCII_keymap [MWKEY_KP0         & 0xFF] = SDLK_KP0 ;
    NX_NONASCII_keymap [MWKEY_KP1         & 0xFF] = SDLK_KP1 ;
    NX_NONASCII_keymap [MWKEY_KP2         & 0xFF] = SDLK_KP2 ;
    NX_NONASCII_keymap [MWKEY_KP3         & 0xFF] = SDLK_KP3 ;
    NX_NONASCII_keymap [MWKEY_KP4         & 0xFF] = SDLK_KP4 ;
    NX_NONASCII_keymap [MWKEY_KP5         & 0xFF] = SDLK_KP5 ;
    NX_NONASCII_keymap [MWKEY_KP6         & 0xFF] = SDLK_KP6 ;
    NX_NONASCII_keymap [MWKEY_KP7         & 0xFF] = SDLK_KP7 ;
    NX_NONASCII_keymap [MWKEY_KP8         & 0xFF] = SDLK_KP8 ;
    NX_NONASCII_keymap [MWKEY_KP9         & 0xFF] = SDLK_KP9 ;
    NX_NONASCII_keymap [MWKEY_KP_PERIOD   & 0xFF] = SDLK_KP_PERIOD ;
    NX_NONASCII_keymap [MWKEY_KP_DIVIDE   & 0xFF] = SDLK_KP_DIVIDE ;
    NX_NONASCII_keymap [MWKEY_KP_MULTIPLY & 0xFF] = SDLK_KP_MULTIPLY ;
    NX_NONASCII_keymap [MWKEY_KP_MINUS    & 0xFF] = SDLK_KP_MINUS ;
    NX_NONASCII_keymap [MWKEY_KP_PLUS     & 0xFF] = SDLK_KP_PLUS ;
    NX_NONASCII_keymap [MWKEY_KP_ENTER    & 0xFF] = SDLK_KP_ENTER ;
    NX_NONASCII_keymap [MWKEY_KP_EQUALS   & 0xFF] = SDLK_KP_EQUALS ;

    NX_NONASCII_keymap [MWKEY_F1          & 0xFF] = SDLK_F1 ;
    NX_NONASCII_keymap [MWKEY_F2          & 0xFF] = SDLK_F2 ;
    NX_NONASCII_keymap [MWKEY_F3          & 0xFF] = SDLK_F3 ;
    NX_NONASCII_keymap [MWKEY_F4          & 0xFF] = SDLK_F4 ;
    NX_NONASCII_keymap [MWKEY_F5          & 0xFF] = SDLK_F5 ;
    NX_NONASCII_keymap [MWKEY_F6          & 0xFF] = SDLK_F6 ;
    NX_NONASCII_keymap [MWKEY_F7          & 0xFF] = SDLK_F7 ;
    NX_NONASCII_keymap [MWKEY_F8          & 0xFF] = SDLK_F8 ;
    NX_NONASCII_keymap [MWKEY_F9          & 0xFF] = SDLK_F9 ;
    NX_NONASCII_keymap [MWKEY_F10         & 0xFF] = SDLK_F10 ;
    NX_NONASCII_keymap [MWKEY_F11         & 0xFF] = SDLK_F11 ;
    NX_NONASCII_keymap [MWKEY_F12         & 0xFF] = SDLK_F12 ;

    NX_NONASCII_keymap [MWKEY_NUMLOCK     & 0xFF] = SDLK_NUMLOCK ;
    NX_NONASCII_keymap [MWKEY_CAPSLOCK    & 0xFF] = SDLK_CAPSLOCK ;
    NX_NONASCII_keymap [MWKEY_SCROLLOCK   & 0xFF] = SDLK_SCROLLOCK ;
    NX_NONASCII_keymap [MWKEY_LSHIFT      & 0xFF] = SDLK_LSHIFT ;
    NX_NONASCII_keymap [MWKEY_RSHIFT      & 0xFF] = SDLK_RSHIFT ;
    NX_NONASCII_keymap [MWKEY_LCTRL       & 0xFF] = SDLK_LCTRL ;
    NX_NONASCII_keymap [MWKEY_RCTRL       & 0xFF] = SDLK_RCTRL ;
    NX_NONASCII_keymap [MWKEY_LALT        & 0xFF] = SDLK_LALT ;
    NX_NONASCII_keymap [MWKEY_RALT        & 0xFF] = SDLK_RALT ;
    NX_NONASCII_keymap [MWKEY_LMETA       & 0xFF] = SDLK_LMETA ;
    NX_NONASCII_keymap [MWKEY_RMETA       & 0xFF] = SDLK_RMETA ;
    NX_NONASCII_keymap [MWKEY_ALTGR       & 0xFF] = SDLK_MODE ;

    NX_NONASCII_keymap [MWKEY_PRINT       & 0xFF] = SDLK_PRINT ;
    NX_NONASCII_keymap [MWKEY_SYSREQ      & 0xFF] = SDLK_SYSREQ ;
    NX_NONASCII_keymap [MWKEY_PAUSE       & 0xFF] = SDLK_PAUSE ;
    NX_NONASCII_keymap [MWKEY_BREAK       & 0xFF] = SDLK_BREAK ;
    NX_NONASCII_keymap [MWKEY_MENU        & 0xFF] = SDLK_MENU ;

    Dprintf ("leave NX_InitOSKeymap\n") ;
}

SDL_keysym * NX_TranslateKey (GR_EVENT_KEYSTROKE * keystroke, SDL_keysym * keysym)
{
    GR_KEY ch = keystroke -> ch ;

    Dprintf ("enter NX_TranslateKey\n") ;

    keysym -> scancode = keystroke -> scancode ;
    keysym -> sym = SDLK_UNKNOWN ;

    if (ch & MWKEY_NONASCII_MASK) {
        keysym -> sym = NX_NONASCII_keymap [ch & 0xFF] ;
    } else {
        keysym -> sym = ch & 0x7F ;
    }

    keysym -> mod = KMOD_NONE ;
    
#if 1   //   Retrieve more mode information
    {
        GR_KEYMOD   mod = keystroke -> modifiers ;

        if (mod & MWKMOD_LSHIFT)
            keysym -> mod |= KMOD_LSHIFT ;
        if (mod & MWKMOD_RSHIFT)
            keysym -> mod |= KMOD_RSHIFT ;
        if (mod & MWKMOD_LCTRL)
            keysym -> mod |= KMOD_LCTRL ;
        if (mod & MWKMOD_RCTRL)
            keysym -> mod |= KMOD_RCTRL ;
        if (mod & MWKMOD_LALT)
            keysym -> mod |= KMOD_LALT ;
        if (mod & MWKMOD_RALT)
            keysym -> mod |= KMOD_RALT ;
        if (mod & MWKMOD_LMETA)
            keysym -> mod |= KMOD_LMETA ;
        if (mod & MWKMOD_RMETA)
            keysym -> mod |= KMOD_RMETA ;
        if (mod & MWKMOD_NUM)
            keysym -> mod |= KMOD_NUM ;
        if (mod & MWKMOD_CAPS)
            keysym -> mod |= KMOD_CAPS ;
        if (mod & MWKMOD_ALTGR)
            keysym -> mod |= KMOD_MODE ;
    }
#endif

    keysym -> unicode = ch ;

    Dprintf ("leave NX_TranslateKey\n") ;
    return keysym ;
}

static int check_boundary (_THIS, int x, int y)
{
    if (x < OffsetX || y < OffsetY || x > OffsetX + this -> screen -> w ||
        y > OffsetY + this -> screen -> h)
        return 0 ;
            
    return 1 ;
}

void NX_PumpEvents (_THIS)
{
    GR_EVENT         event ;
    static GR_BUTTON last_button_down = 0 ;

    GrCheckNextEvent (& event) ;
    while (event.type != GR_EVENT_TYPE_NONE) {

        // dispatch event
        switch (event.type) {
            case GR_EVENT_TYPE_MOUSE_ENTER :
            {
                Dprintf ("mouse enter\n") ;
                SDL_PrivateAppActive (1, SDL_APPMOUSEFOCUS) ;
                break ;
            }

            case GR_EVENT_TYPE_MOUSE_EXIT :
            {
                Dprintf ("mouse exit\n") ;
                SDL_PrivateAppActive (0, SDL_APPMOUSEFOCUS) ;
                break ;
            }

            case GR_EVENT_TYPE_FOCUS_IN :
            {
                Dprintf ("focus in\n") ;
                SDL_PrivateAppActive (1, SDL_APPINPUTFOCUS) ;
                break ;
            }

            case GR_EVENT_TYPE_FOCUS_OUT :
            {
                Dprintf ("focus out\n") ;
                SDL_PrivateAppActive (0, SDL_APPINPUTFOCUS) ;
                break ;
            }

            case GR_EVENT_TYPE_MOUSE_MOTION :
            {               
                Dprintf ("mouse motion\n") ;

                if (SDL_VideoSurface) {
                    if (currently_fullscreen) {
                        if (check_boundary (this, event.button.x, event.button.y)) {
                            SDL_PrivateMouseMotion (0, 0, event.button.x - OffsetX, 
                                event.button.y - OffsetY) ;
                        }
                    } else {
                        SDL_PrivateMouseMotion (0, 0, event.button.x, event.button.y) ;
                    }
                }
                break ;
            }

            case GR_EVENT_TYPE_BUTTON_DOWN :
            {
                int button = event.button.buttons ;
                
                Dprintf ("button down\n") ;

                switch (button) {
                    case MWBUTTON_L :
                        button = 1 ;
                        break ;
                    case MWBUTTON_M :
                        button = 2 ;
                        break ;
                    case MWBUTTON_R :
                        button = 3 ;
                        break ;
                    default :
                        button = 0 ;
                }
                last_button_down = button ;
                
                if (currently_fullscreen) {
                    if (check_boundary (this, event.button.x, event.button.y)) {
                        SDL_PrivateMouseButton (SDL_PRESSED, button, 
                            event.button.x - OffsetX, event.button.y - OffsetY) ;
                    }
                } else {
                    SDL_PrivateMouseButton (SDL_PRESSED, button, 
                        event.button.x, event.button.y) ;
                }
                break ;
            }

            // do not konw which button is released
            case GR_EVENT_TYPE_BUTTON_UP :
            {   
                Dprintf ("button up\n") ;

                if (currently_fullscreen) {
                    if (check_boundary (this, event.button.x, event.button.y)) {
                        SDL_PrivateMouseButton (SDL_RELEASED, last_button_down, 
                            event.button.x - OffsetX, event.button.y - OffsetY) ;
                    }
                } else {
                    SDL_PrivateMouseButton (SDL_RELEASED, last_button_down, 
                        event.button.x, event.button.y) ;
                }
                last_button_down = 0 ;
                break ;
            }

            case GR_EVENT_TYPE_KEY_DOWN :
            {
                SDL_keysym keysym ;

                Dprintf ("key down\n") ;
                SDL_PrivateKeyboard (SDL_PRESSED,
                    NX_TranslateKey (& event.keystroke, & keysym)) ;
                break ;
            }

            case GR_EVENT_TYPE_KEY_UP :
            {
                SDL_keysym keysym ;

                Dprintf ("key up\n") ;
                SDL_PrivateKeyboard (SDL_RELEASED,
                    NX_TranslateKey (& event.keystroke, & keysym)) ;
                break ;
            }

            case GR_EVENT_TYPE_CLOSE_REQ :
            {
                Dprintf ("close require\n") ;
                SDL_PrivateQuit () ;
                break ;
            }

            case GR_EVENT_TYPE_EXPOSURE :
            {
                Dprintf ("event_type_exposure\n") ;
                if (SDL_VideoSurface) {
                    NX_RefreshDisplay (this) ;//, & event.exposure) ;
                }
                break ;
            }

            case GR_EVENT_TYPE_UPDATE :
            {
                switch (event.update.utype) {
                    case GR_UPDATE_MAP :
                    {
                        Dprintf ("GR_UPDATE_MAP\n") ;
                        // If we're not active, make ourselves active
                        if (!(SDL_GetAppState () & SDL_APPACTIVE)) {
                            // Send an internal activate event
                            SDL_PrivateAppActive (1, SDL_APPACTIVE) ;
                        }
                        if (SDL_VideoSurface) {
                            NX_RefreshDisplay (this) ;
                        }
                        break ;
                    }
                    
                    case GR_UPDATE_UNMAP :
                    case GR_UPDATE_UNMAPTEMP :
                    {
                        Dprintf ("GR_UPDATE_UNMAP or GR_UPDATE_UNMAPTEMP\n") ;
                        // If we're active, make ourselves inactive
                        if (SDL_GetAppState () & SDL_APPACTIVE) {
                            // Send an internal deactivate event
                            SDL_PrivateAppActive (0, SDL_APPACTIVE | SDL_APPINPUTFOCUS) ;
                        }
                        break ; 
                    }
                    
                    case GR_UPDATE_SIZE :
                    {
                        Dprintf ("GR_UPDATE_SIZE\n") ;
                        SDL_PrivateResize (event.update.width, event.update.height) ;
                        break ; 
                    }

                    case GR_UPDATE_MOVE :
		    case GR_UPDATE_REPARENT :
                    {
                        Dprintf ("GR_UPDATE_MOVE or GR_UPDATE_REPARENT\n") ;
#ifdef ENABLE_NANOX_DIRECT_FB
			if (Clientfb) {
			    /* Get current window position and fb pointer*/
			    if (currently_fullscreen) 
				GrGetWindowFBInfo(FSwindow, &fbinfo);
			    else
				GrGetWindowFBInfo(SDL_Window, &fbinfo);
			}
#endif
                        break ; 
                    }
                    
                    default :
                        Dprintf ("unknown GR_EVENT_TYPE_UPDATE\n") ;
                        break ; 
                }
                break ; 
            }
                
            default :
            {
                Dprintf ("pump event default\n") ;
            }
        }

        GrCheckNextEvent (& event) ;
    }
}