/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2009 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
*/
#include "SDL_config.h"

/* Handle the event stream, converting DirectFB input events into SDL events */

#include <directfb.h>

#include "../SDL_sysvideo.h"
#include "../../events/SDL_sysevents.h"
#include "../../events/SDL_events_c.h"
#include "../../events/SDL_keyboard_c.h"
#include "../../events/scancodes_linux.h"
#include "SDL_DirectFB_events.h"

/* The translation tables from a DirectFB keycode to a SDL keysym */
static SDLKey oskeymap[256];
static int sys_ids;

static SDL_keysym *DirectFB_TranslateKey(_THIS, DFBWindowEvent * evt,
                                         SDL_keysym * keysym);
static SDL_keysym *DirectFB_TranslateKeyInputEvent(_THIS, int index,
                                                   DFBInputEvent * evt,
                                                   SDL_keysym * keysym);

static void DirectFB_InitOSKeymap(_THIS, SDLKey * keypmap, int numkeys);
static int DirectFB_TranslateButton(DFBInputDeviceButtonIdentifier button);

static void
DirectFB_SetContext(_THIS, SDL_WindowID id)
{
#if (DIRECTFB_MAJOR_VERSION >= 1)
    /* FIXME: does not work on 1.0/1.2 with radeon driver
     *        the approach did work with the matrox driver
     *        This has simply no effect.
     */

    SDL_Window *window = SDL_GetWindowFromID(id);
    SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
    DFB_DisplayData *dispdata = (DFB_DisplayData *) display->driverdata;
    int ret;

    if (dispdata->vidIDinuse)
        SDL_DFB_CHECKERR(dispdata->vidlayer->
                         SwitchContext(dispdata->vidlayer, DFB_TRUE));

  error:
    return;
#endif

}

static void
FocusAllMice(_THIS, SDL_WindowID id)
{
    SDL_DFB_DEVICEDATA(_this);
    int index;

    for (index = 0; index < devdata->num_mice; index++)
        SDL_SetMouseFocus(devdata->mouse_id[index], id);
}


static void
FocusAllKeyboards(_THIS, SDL_WindowID id)
{
    SDL_DFB_DEVICEDATA(_this);
    int index;

    for (index = 0; index < devdata->num_keyboard; index++)
        SDL_SetKeyboardFocus(index, id);
}

static void
MotionAllMice(_THIS, int x, int y)
{
    SDL_DFB_DEVICEDATA(_this);
    int index;

    for (index = 0; index < devdata->num_mice; index++) {
        SDL_Mouse *mouse = SDL_GetMouse(index);
        mouse->x = mouse->last_x = x;
        mouse->y = mouse->last_y = y;
        //SDL_SendMouseMotion(devdata->mouse_id[index], 0, x, y, 0);
    }
}

static int
KbdIndex(_THIS, int id)
{
    SDL_DFB_DEVICEDATA(_this);
    int index;

    for (index = 0; index < devdata->num_keyboard; index++) {
        if (devdata->keyboard[index].id == id)
            return index;
    }
    return -1;
}

void
DirectFB_PumpEventsWindow(_THIS)
{
    SDL_DFB_DEVICEDATA(_this);
    DFB_WindowData *p;
    DFBInputEvent ievt;
    Sint32 /* SDL_WindowID */ grabbed_window;
    char text[5];
    int kbd_idx;

    grabbed_window = -1;

    for (p = devdata->firstwin; p != NULL; p = p->next) {
        DFBWindowEvent evt;
        SDL_Window *w = SDL_GetWindowFromID(p->id);

        if (w->flags & SDL_WINDOW_INPUT_GRABBED) {
            grabbed_window = p->id;
        }

        while (p->eventbuffer->GetEvent(p->eventbuffer,
                                        DFB_EVENT(&evt)) == DFB_OK) {
            SDL_keysym keysym;

            if (evt.clazz == DFEC_WINDOW) {
                switch (evt.type) {
                case DWET_BUTTONDOWN:
                    if (!LINUX_INPUT_SUPPORT) {
                        SDL_SendMouseMotion(devdata->mouse_id[0], 0, evt.cx,
                                            evt.cy, 0);
                        SDL_SendMouseButton(devdata->mouse_id[0], SDL_PRESSED,
                                            DirectFB_TranslateButton(evt.
                                                                     button));
                    } else {
                        MotionAllMice(_this, evt.x, evt.y);
                    }
                    break;
                case DWET_BUTTONUP:
                    if (!LINUX_INPUT_SUPPORT) {
                        SDL_SendMouseMotion(devdata->mouse_id[0], 0, evt.cx,
                                            evt.cy, 0);
                        SDL_SendMouseButton(devdata->mouse_id[0],
                                            SDL_RELEASED,
                                            DirectFB_TranslateButton(evt.
                                                                     button));
                    } else {
                        MotionAllMice(_this, evt.x, evt.y);
                    }
                    break;
                case DWET_MOTION:
                    if (!LINUX_INPUT_SUPPORT) {
                        if (!(w->flags & SDL_WINDOW_INPUT_GRABBED))
                            SDL_SendMouseMotion(devdata->mouse_id[0], 0,
                                                evt.cx, evt.cy, 0);
                    } else {
                        /* relative movements are not exact! 
                         * This code should limit the number of events sent.
                         * However it kills MAME axis recognition ... */
                        static int cnt = 0;
                        if (1 && ++cnt > 20) {
                            MotionAllMice(_this, evt.x, evt.y);
                            cnt = 0;
                        }
                    }
                    break;
                case DWET_KEYDOWN:
                    if (!LINUX_INPUT_SUPPORT) {
                        DirectFB_TranslateKey(_this, &evt, &keysym);
                        SDL_SendKeyboardKey(0, SDL_PRESSED, keysym.scancode);
                        if (SDL_EventState(SDL_TEXTINPUT, SDL_QUERY)) {
                            SDL_memcpy(text, &keysym.unicode, 4);
                            text[4] = 0;
                            if (*text) {
                                SDL_SendKeyboardText(0, text);
                            }
                        }
                    }
                    break;
                case DWET_KEYUP:
                    if (!LINUX_INPUT_SUPPORT) {
                        DirectFB_TranslateKey(_this, &evt, &keysym);
                        SDL_SendKeyboardKey(0, SDL_RELEASED, keysym.scancode);
                    }
                    break;
                case DWET_POSITION_SIZE:
                    if (evt.x != w->x || evt.y != w->y)
                        SDL_SendWindowEvent(p->id, SDL_WINDOWEVENT_MOVED,
                                            evt.x, evt.y);
                    if (evt.w != w->w || evt.h != w->h)
                        SDL_SendWindowEvent(p->id, SDL_WINDOWEVENT_RESIZED,
                                            evt.w, evt.h);
                    break;
                case DWET_POSITION:
                    if (evt.x != w->x || evt.y != w->y)
                        SDL_SendWindowEvent(p->id, SDL_WINDOWEVENT_MOVED,
                                            evt.x, evt.y);
                    break;
                case DWET_SIZE:
                    if (evt.w != w->w || evt.h != w->h)
                        SDL_SendWindowEvent(p->id, SDL_WINDOWEVENT_RESIZED,
                                            evt.w, evt.h);
                    break;
                case DWET_CLOSE:
                    SDL_SendWindowEvent(p->id, SDL_WINDOWEVENT_CLOSE, 0, 0);
                    break;
                case DWET_GOTFOCUS:
                    DirectFB_SetContext(_this, p->id);
                    FocusAllKeyboards(_this, p->id);
                    SDL_SendWindowEvent(p->id, SDL_WINDOWEVENT_FOCUS_GAINED,
                                        0, 0);
                    break;
                case DWET_LOSTFOCUS:
                    SDL_SendWindowEvent(p->id, SDL_WINDOWEVENT_FOCUS_LOST, 0,
                                        0);
                    FocusAllKeyboards(_this, 0);
                    break;
                case DWET_ENTER:
                    /* SDL_DirectFB_ReshowCursor(_this, 0); */
                    FocusAllMice(_this, p->id);
                    MotionAllMice(_this, evt.x, evt.y);
                    SDL_SendWindowEvent(p->id, SDL_WINDOWEVENT_ENTER, 0, 0);
                    break;
                case DWET_LEAVE:
                    SDL_SendWindowEvent(p->id, SDL_WINDOWEVENT_LEAVE, 0, 0);
                    FocusAllMice(_this, 0);
                    /* SDL_DirectFB_ReshowCursor(_this, 1); */
                    break;
                default:
                    ;
                }
            } else
                printf("Event Clazz %d\n", evt.clazz);

        }
    }

    /* Now get relative events in case we need them */
    while (devdata->events->GetEvent(devdata->events,
                                     DFB_EVENT(&ievt)) == DFB_OK) {
        SDL_keysym keysym;

        switch (ievt.type) {
        case DIET_AXISMOTION:
            if (!LINUX_INPUT_SUPPORT) {
                if ((grabbed_window >= 0) && (ievt.flags & DIEF_AXISREL)) {
                    printf("rel devid %d\n", ievt.device_id);
                    if (ievt.axis == DIAI_X)
                        SDL_SendMouseMotion(ievt.device_id, 1, ievt.axisrel,
                                            0, 0);
                    else if (ievt.axis == DIAI_Y)
                        SDL_SendMouseMotion(ievt.device_id, 1, 0,
                                            ievt.axisrel, 0);
                }
            }
            break;
        }
        if (LINUX_INPUT_SUPPORT) {
            IDirectFBInputDevice *idev;
            static int last_x, last_y;

            switch (ievt.type) {
            case DIET_AXISMOTION:
                if (ievt.flags & DIEF_AXISABS) {
                    if (ievt.axis == DIAI_X)
                        last_x = ievt.axisabs;
                    else if (ievt.axis == DIAI_Y)
                        last_y = ievt.axisabs;
                    if (!(ievt.flags & DIEF_FOLLOW))
                        SDL_SendMouseMotion(ievt.device_id, 0, last_x, last_y,
                                            0);
                } else if (ievt.flags & DIEF_AXISREL) {
                    //printf("rel %d %d\n", ievt.device_id, ievt.axisrel);
                    if (ievt.axis == DIAI_X)
                        SDL_SendMouseMotion(ievt.device_id, 1, ievt.axisrel,
                                            0, 0);
                    else if (ievt.axis == DIAI_Y)
                        SDL_SendMouseMotion(ievt.device_id, 1, 0,
                                            ievt.axisrel, 0);
                }
                break;
            case DIET_KEYPRESS:
                kbd_idx = KbdIndex(_this, ievt.device_id);
                DirectFB_TranslateKeyInputEvent(_this, kbd_idx, &ievt,
                                                &keysym);
                SDL_SendKeyboardKey(kbd_idx, SDL_PRESSED, keysym.scancode);
                if (SDL_EventState(SDL_TEXTINPUT, SDL_QUERY)) {
                    SDL_memcpy(text, &keysym.unicode, 4);
                    text[4] = 0;
                    if (*text) {
                        SDL_SendKeyboardText(kbd_idx, text);
                    }
                }
                break;
            case DIET_KEYRELEASE:
                kbd_idx = KbdIndex(_this, ievt.device_id);
                DirectFB_TranslateKeyInputEvent(_this, kbd_idx, &ievt,
                                                &keysym);
                SDL_SendKeyboardKey(kbd_idx, SDL_RELEASED, keysym.scancode);
                break;
            case DIET_BUTTONPRESS:
                if (ievt.buttons & DIBM_LEFT)
                    SDL_SendMouseButton(ievt.device_id, SDL_PRESSED, 1);
                if (ievt.buttons & DIBM_MIDDLE)
                    SDL_SendMouseButton(ievt.device_id, SDL_PRESSED, 2);
                if (ievt.buttons & DIBM_RIGHT)
                    SDL_SendMouseButton(ievt.device_id, SDL_PRESSED, 3);
                break;
            case DIET_BUTTONRELEASE:
                if (!(ievt.buttons & DIBM_LEFT))
                    SDL_SendMouseButton(ievt.device_id, SDL_RELEASED, 1);
                if (!(ievt.buttons & DIBM_MIDDLE))
                    SDL_SendMouseButton(ievt.device_id, SDL_RELEASED, 2);
                if (!(ievt.buttons & DIBM_RIGHT))
                    SDL_SendMouseButton(ievt.device_id, SDL_RELEASED, 3);
                break;
            }
        }
    }
}

void
DirectFB_InitOSKeymap(_THIS, SDLKey * keymap, int numkeys)
{
    int i;

    /* Initialize the DirectFB key translation table */
    for (i = 0; i < numkeys; ++i)
        keymap[i] = SDL_SCANCODE_UNKNOWN;

    keymap[DIKI_A - DIKI_UNKNOWN] = SDL_SCANCODE_A;
    keymap[DIKI_B - DIKI_UNKNOWN] = SDL_SCANCODE_B;
    keymap[DIKI_C - DIKI_UNKNOWN] = SDL_SCANCODE_C;
    keymap[DIKI_D - DIKI_UNKNOWN] = SDL_SCANCODE_D;
    keymap[DIKI_E - DIKI_UNKNOWN] = SDL_SCANCODE_E;
    keymap[DIKI_F - DIKI_UNKNOWN] = SDL_SCANCODE_F;
    keymap[DIKI_G - DIKI_UNKNOWN] = SDL_SCANCODE_G;
    keymap[DIKI_H - DIKI_UNKNOWN] = SDL_SCANCODE_H;
    keymap[DIKI_I - DIKI_UNKNOWN] = SDL_SCANCODE_I;
    keymap[DIKI_J - DIKI_UNKNOWN] = SDL_SCANCODE_J;
    keymap[DIKI_K - DIKI_UNKNOWN] = SDL_SCANCODE_K;
    keymap[DIKI_L - DIKI_UNKNOWN] = SDL_SCANCODE_L;
    keymap[DIKI_M - DIKI_UNKNOWN] = SDL_SCANCODE_M;
    keymap[DIKI_N - DIKI_UNKNOWN] = SDL_SCANCODE_N;
    keymap[DIKI_O - DIKI_UNKNOWN] = SDL_SCANCODE_O;
    keymap[DIKI_P - DIKI_UNKNOWN] = SDL_SCANCODE_P;
    keymap[DIKI_Q - DIKI_UNKNOWN] = SDL_SCANCODE_Q;
    keymap[DIKI_R - DIKI_UNKNOWN] = SDL_SCANCODE_R;
    keymap[DIKI_S - DIKI_UNKNOWN] = SDL_SCANCODE_S;
    keymap[DIKI_T - DIKI_UNKNOWN] = SDL_SCANCODE_T;
    keymap[DIKI_U - DIKI_UNKNOWN] = SDL_SCANCODE_U;
    keymap[DIKI_V - DIKI_UNKNOWN] = SDL_SCANCODE_V;
    keymap[DIKI_W - DIKI_UNKNOWN] = SDL_SCANCODE_W;
    keymap[DIKI_X - DIKI_UNKNOWN] = SDL_SCANCODE_X;
    keymap[DIKI_Y - DIKI_UNKNOWN] = SDL_SCANCODE_Y;
    keymap[DIKI_Z - DIKI_UNKNOWN] = SDL_SCANCODE_Z;

    keymap[DIKI_0 - DIKI_UNKNOWN] = SDL_SCANCODE_0;
    keymap[DIKI_1 - DIKI_UNKNOWN] = SDL_SCANCODE_1;
    keymap[DIKI_2 - DIKI_UNKNOWN] = SDL_SCANCODE_2;
    keymap[DIKI_3 - DIKI_UNKNOWN] = SDL_SCANCODE_3;
    keymap[DIKI_4 - DIKI_UNKNOWN] = SDL_SCANCODE_4;
    keymap[DIKI_5 - DIKI_UNKNOWN] = SDL_SCANCODE_5;
    keymap[DIKI_6 - DIKI_UNKNOWN] = SDL_SCANCODE_6;
    keymap[DIKI_7 - DIKI_UNKNOWN] = SDL_SCANCODE_7;
    keymap[DIKI_8 - DIKI_UNKNOWN] = SDL_SCANCODE_8;
    keymap[DIKI_9 - DIKI_UNKNOWN] = SDL_SCANCODE_9;

    keymap[DIKI_F1 - DIKI_UNKNOWN] = SDL_SCANCODE_F1;
    keymap[DIKI_F2 - DIKI_UNKNOWN] = SDL_SCANCODE_F2;
    keymap[DIKI_F3 - DIKI_UNKNOWN] = SDL_SCANCODE_F3;
    keymap[DIKI_F4 - DIKI_UNKNOWN] = SDL_SCANCODE_F4;
    keymap[DIKI_F5 - DIKI_UNKNOWN] = SDL_SCANCODE_F5;
    keymap[DIKI_F6 - DIKI_UNKNOWN] = SDL_SCANCODE_F6;
    keymap[DIKI_F7 - DIKI_UNKNOWN] = SDL_SCANCODE_F7;
    keymap[DIKI_F8 - DIKI_UNKNOWN] = SDL_SCANCODE_F8;
    keymap[DIKI_F9 - DIKI_UNKNOWN] = SDL_SCANCODE_F9;
    keymap[DIKI_F10 - DIKI_UNKNOWN] = SDL_SCANCODE_F10;
    keymap[DIKI_F11 - DIKI_UNKNOWN] = SDL_SCANCODE_F11;
    keymap[DIKI_F12 - DIKI_UNKNOWN] = SDL_SCANCODE_F12;

    keymap[DIKI_ESCAPE - DIKI_UNKNOWN] = SDL_SCANCODE_ESCAPE;
    keymap[DIKI_LEFT - DIKI_UNKNOWN] = SDL_SCANCODE_LEFT;
    keymap[DIKI_RIGHT - DIKI_UNKNOWN] = SDL_SCANCODE_RIGHT;
    keymap[DIKI_UP - DIKI_UNKNOWN] = SDL_SCANCODE_UP;
    keymap[DIKI_DOWN - DIKI_UNKNOWN] = SDL_SCANCODE_DOWN;
    keymap[DIKI_CONTROL_L - DIKI_UNKNOWN] = SDL_SCANCODE_LCTRL;
    keymap[DIKI_CONTROL_R - DIKI_UNKNOWN] = SDL_SCANCODE_RCTRL;
    keymap[DIKI_SHIFT_L - DIKI_UNKNOWN] = SDL_SCANCODE_LSHIFT;
    keymap[DIKI_SHIFT_R - DIKI_UNKNOWN] = SDL_SCANCODE_RSHIFT;
    keymap[DIKI_ALT_L - DIKI_UNKNOWN] = SDL_SCANCODE_LALT;
    keymap[DIKI_ALT_R - DIKI_UNKNOWN] = SDL_SCANCODE_RALT;
    keymap[DIKI_META_L - DIKI_UNKNOWN] = SDL_SCANCODE_LGUI;
    keymap[DIKI_META_R - DIKI_UNKNOWN] = SDL_SCANCODE_RGUI;
    keymap[DIKI_SUPER_L - DIKI_UNKNOWN] = SDL_SCANCODE_APPLICATION;
    keymap[DIKI_SUPER_R - DIKI_UNKNOWN] = SDL_SCANCODE_APPLICATION;
    /* FIXME:Do we read hyper keys ?
     * keymap[DIKI_HYPER_L - DIKI_UNKNOWN] = SDL_SCANCODE_APPLICATION;
     * keymap[DIKI_HYPER_R - DIKI_UNKNOWN] = SDL_SCANCODE_APPLICATION;
     */
    keymap[DIKI_TAB - DIKI_UNKNOWN] = SDL_SCANCODE_TAB;
    keymap[DIKI_ENTER - DIKI_UNKNOWN] = SDL_SCANCODE_RETURN;
    keymap[DIKI_SPACE - DIKI_UNKNOWN] = SDL_SCANCODE_SPACE;
    keymap[DIKI_BACKSPACE - DIKI_UNKNOWN] = SDL_SCANCODE_BACKSPACE;
    keymap[DIKI_INSERT - DIKI_UNKNOWN] = SDL_SCANCODE_INSERT;
    keymap[DIKI_DELETE - DIKI_UNKNOWN] = SDL_SCANCODE_DELETE;
    keymap[DIKI_HOME - DIKI_UNKNOWN] = SDL_SCANCODE_HOME;
    keymap[DIKI_END - DIKI_UNKNOWN] = SDL_SCANCODE_END;
    keymap[DIKI_PAGE_UP - DIKI_UNKNOWN] = SDL_SCANCODE_PAGEUP;
    keymap[DIKI_PAGE_DOWN - DIKI_UNKNOWN] = SDL_SCANCODE_PAGEDOWN;
    keymap[DIKI_CAPS_LOCK - DIKI_UNKNOWN] = SDL_SCANCODE_CAPSLOCK;
    keymap[DIKI_NUM_LOCK - DIKI_UNKNOWN] = SDL_SCANCODE_NUMLOCKCLEAR;
    keymap[DIKI_SCROLL_LOCK - DIKI_UNKNOWN] = SDL_SCANCODE_SCROLLLOCK;
    keymap[DIKI_PRINT - DIKI_UNKNOWN] = SDL_SCANCODE_PRINTSCREEN;
    keymap[DIKI_PAUSE - DIKI_UNKNOWN] = SDL_SCANCODE_PAUSE;

    keymap[DIKI_KP_EQUAL - DIKI_UNKNOWN] = SDL_SCANCODE_KP_EQUALS;
    keymap[DIKI_KP_DECIMAL - DIKI_UNKNOWN] = SDL_SCANCODE_KP_PERIOD;
    keymap[DIKI_KP_0 - DIKI_UNKNOWN] = SDL_SCANCODE_KP_0;
    keymap[DIKI_KP_1 - DIKI_UNKNOWN] = SDL_SCANCODE_KP_1;
    keymap[DIKI_KP_2 - DIKI_UNKNOWN] = SDL_SCANCODE_KP_2;
    keymap[DIKI_KP_3 - DIKI_UNKNOWN] = SDL_SCANCODE_KP_3;
    keymap[DIKI_KP_4 - DIKI_UNKNOWN] = SDL_SCANCODE_KP_4;
    keymap[DIKI_KP_5 - DIKI_UNKNOWN] = SDL_SCANCODE_KP_5;
    keymap[DIKI_KP_6 - DIKI_UNKNOWN] = SDL_SCANCODE_KP_6;
    keymap[DIKI_KP_7 - DIKI_UNKNOWN] = SDL_SCANCODE_KP_7;
    keymap[DIKI_KP_8 - DIKI_UNKNOWN] = SDL_SCANCODE_KP_8;
    keymap[DIKI_KP_9 - DIKI_UNKNOWN] = SDL_SCANCODE_KP_9;
    keymap[DIKI_KP_DIV - DIKI_UNKNOWN] = SDL_SCANCODE_KP_DIVIDE;
    keymap[DIKI_KP_MULT - DIKI_UNKNOWN] = SDL_SCANCODE_KP_MULTIPLY;
    keymap[DIKI_KP_MINUS - DIKI_UNKNOWN] = SDL_SCANCODE_KP_MINUS;
    keymap[DIKI_KP_PLUS - DIKI_UNKNOWN] = SDL_SCANCODE_KP_PLUS;
    keymap[DIKI_KP_ENTER - DIKI_UNKNOWN] = SDL_SCANCODE_KP_ENTER;

    keymap[DIKI_QUOTE_LEFT - DIKI_UNKNOWN] = SDL_SCANCODE_GRAVE;        /*  TLDE  */
    keymap[DIKI_MINUS_SIGN - DIKI_UNKNOWN] = SDL_SCANCODE_MINUS;        /*  AE11  */
    keymap[DIKI_EQUALS_SIGN - DIKI_UNKNOWN] = SDL_SCANCODE_EQUALS;      /*  AE12  */
    keymap[DIKI_BRACKET_LEFT - DIKI_UNKNOWN] = SDL_SCANCODE_RIGHTBRACKET;       /*  AD11  */
    keymap[DIKI_BRACKET_RIGHT - DIKI_UNKNOWN] = SDL_SCANCODE_LEFTBRACKET;       /*  AD12  */
    keymap[DIKI_BACKSLASH - DIKI_UNKNOWN] = SDL_SCANCODE_BACKSLASH;     /*  BKSL  */
    keymap[DIKI_SEMICOLON - DIKI_UNKNOWN] = SDL_SCANCODE_SEMICOLON;     /*  AC10  */
    keymap[DIKI_QUOTE_RIGHT - DIKI_UNKNOWN] = SDL_SCANCODE_APOSTROPHE;  /*  AC11  */
    keymap[DIKI_COMMA - DIKI_UNKNOWN] = SDL_SCANCODE_COMMA;     /*  AB08  */
    keymap[DIKI_PERIOD - DIKI_UNKNOWN] = SDL_SCANCODE_PERIOD;   /*  AB09  */
    keymap[DIKI_SLASH - DIKI_UNKNOWN] = SDL_SCANCODE_SLASH;     /*  AB10  */
    keymap[DIKI_LESS_SIGN - DIKI_UNKNOWN] = SDL_SCANCODE_NONUSBACKSLASH;        /*  103rd  */

}

static SDL_keysym *
DirectFB_TranslateKey(_THIS, DFBWindowEvent * evt, SDL_keysym * keysym)
{
    SDL_DFB_DEVICEDATA(_this);

    if (evt->key_code >= 0
        && evt->key_code < SDL_arraysize(linux_scancode_table))
        keysym->scancode = linux_scancode_table[evt->key_code];
    else
        keysym->scancode = SDL_SCANCODE_UNKNOWN;

    if (keysym->scancode == SDL_SCANCODE_UNKNOWN
        || devdata->keyboard[0].is_generic) {
        if (evt->key_id - DIKI_UNKNOWN < SDL_arraysize(oskeymap))
            keysym->scancode = oskeymap[evt->key_id - DIKI_UNKNOWN];
        else
            keysym->scancode = SDL_SCANCODE_UNKNOWN;
    }

    keysym->unicode =
        (DFB_KEY_TYPE(evt->key_symbol) == DIKT_UNICODE) ? evt->key_symbol : 0;
    if (keysym->unicode == 0
        && (evt->key_symbol > 0 && evt->key_symbol < 255))
        keysym->unicode = evt->key_symbol;

    return keysym;
}

static SDL_keysym *
DirectFB_TranslateKeyInputEvent(_THIS, int index, DFBInputEvent * evt,
                                SDL_keysym * keysym)
{
    SDL_DFB_DEVICEDATA(_this);

    if (evt->key_code >= 0
        && evt->key_code < SDL_arraysize(linux_scancode_table))
        keysym->scancode = linux_scancode_table[evt->key_code];
    else
        keysym->scancode = SDL_SCANCODE_UNKNOWN;

    if (keysym->scancode == SDL_SCANCODE_UNKNOWN
        || devdata->keyboard[index].is_generic) {
        if (evt->key_id - DIKI_UNKNOWN < SDL_arraysize(oskeymap))
            keysym->scancode = oskeymap[evt->key_id - DIKI_UNKNOWN];
        else
            keysym->scancode = SDL_SCANCODE_UNKNOWN;
    }

    keysym->unicode =
        (DFB_KEY_TYPE(evt->key_symbol) == DIKT_UNICODE) ? evt->key_symbol : 0;
    if (keysym->unicode == 0
        && (evt->key_symbol > 0 && evt->key_symbol < 255))
        keysym->unicode = evt->key_symbol;

    return keysym;
}
static int
DirectFB_TranslateButton(DFBInputDeviceButtonIdentifier button)
{
    switch (button) {
    case DIBI_LEFT:
        return 1;
    case DIBI_MIDDLE:
        return 2;
    case DIBI_RIGHT:
        return 3;
    default:
        return 0;
    }
}

static DFBEnumerationResult
input_device_cb(DFBInputDeviceID device_id, DFBInputDeviceDescription desc,
                void *callbackdata)
{
    DFB_DeviceData *devdata = callbackdata;
    SDL_Keyboard keyboard;
    SDLKey keymap[SDL_NUM_SCANCODES];

    if ((desc.caps & DIDTF_KEYBOARD) && device_id == DIDID_KEYBOARD) {
        SDL_zero(keyboard);
        SDL_AddKeyboard(&keyboard, 0);
        devdata->keyboard[0].id = device_id;
        devdata->keyboard[0].is_generic = 0;
        if (!strncmp("X11", desc.name, 3))
            devdata->keyboard[0].is_generic = 1;

        SDL_GetDefaultKeymap(keymap);
        SDL_SetKeymap(0, 0, keymap, SDL_NUM_SCANCODES);
        devdata->num_keyboard++;

        return DFENUM_CANCEL;
    }
    return DFENUM_OK;
}

static DFBEnumerationResult
EnumKeyboards(DFBInputDeviceID device_id, DFBInputDeviceDescription desc,
              void *callbackdata)
{
    DFB_DeviceData *devdata = callbackdata;
    SDL_Keyboard keyboard;
    SDLKey keymap[SDL_NUM_SCANCODES];

    if (sys_ids) {
        if (device_id >= 0x10)
            return DFENUM_OK;
    } else {
        if (device_id < 0x10)
            return DFENUM_OK;
    }
    if ((desc.caps & DIDTF_KEYBOARD)) {
        SDL_zero(keyboard);
        SDL_AddKeyboard(&keyboard, devdata->num_keyboard);
        devdata->keyboard[devdata->num_keyboard].id = device_id;
        devdata->keyboard[devdata->num_keyboard].is_generic = 0;
        if (!strncmp("X11", desc.name, 3))
            devdata->keyboard[devdata->num_keyboard].is_generic = 1;

        SDL_GetDefaultKeymap(keymap);
        SDL_SetKeymap(devdata->num_keyboard, 0, keymap, SDL_NUM_SCANCODES);
        devdata->num_keyboard++;
    }
    return DFENUM_OK;
}

void
DirectFB_InitKeyboard(_THIS)
{
    SDL_DFB_DEVICEDATA(_this);
    int ret;

    DirectFB_InitOSKeymap(_this, &oskeymap[0], SDL_arraysize(oskeymap));

    devdata->num_keyboard = 0;
    if (LINUX_INPUT_SUPPORT) {
        sys_ids = 0;
        SDL_DFB_CHECK(devdata->dfb->
                      EnumInputDevices(devdata->dfb, EnumKeyboards, devdata));
        if (devdata->num_keyboard == 0) {
            sys_ids = 1;
            SDL_DFB_CHECK(devdata->dfb->
                          EnumInputDevices(devdata->dfb, EnumKeyboards,
                                           devdata));
        }
    } else {
        SDL_DFB_CHECK(devdata->dfb->
                      EnumInputDevices(devdata->dfb, input_device_cb,
                                       devdata));
    }
}

void
DirectFB_QuitKeyboard(_THIS)
{
    SDL_DFB_DEVICEDATA(_this);
    int ret;

    SDL_KeyboardQuit();

}

#if 0
/* FIXME: Remove once determined this is not needed in fullscreen mode */
void
DirectFB_PumpEvents(_THIS)
{
    SDL_DFB_DEVICEDATA(_this);
    DFBInputEvent evt;
    static last_x = 0, last_y = 0;

    while (devdata->eventbuffer->GetEvent(devdata->eventbuffer,
                                          DFB_EVENT(&evt)) == DFB_OK) {
        SDL_keysym keysym;
        DFBInputDeviceModifierMask mod;

        if (evt.clazz = DFEC_INPUT) {
            if (evt.flags & DIEF_MODIFIERS)
                mod = evt.modifiers;
            else
                mod = 0;

            switch (evt.type) {
            case DIET_BUTTONPRESS:
                posted += SDL_PrivateMouseButton(SDL_PRESSED,
                                                 DirectFB_TranslateButton(evt.
                                                                          button),
                                                 0, 0);
                break;
            case DIET_BUTTONRELEASE:
                posted += SDL_PrivateMouseButton(SDL_RELEASED,
                                                 DirectFB_TranslateButton(evt.
                                                                          button),
                                                 0, 0);
                break;
            case DIET_KEYPRESS:
                posted += SDL_PrivateKeyboard(SDL_PRESSED,
                                              DirectFB_TranslateKey(evt.
                                                                    key_id,
                                                                    evt.
                                                                    key_symbol,
                                                                    mod,
                                                                    &keysym));
                break;
            case DIET_KEYRELEASE:
                posted += SDL_PrivateKeyboard(SDL_RELEASED,
                                              DirectFB_TranslateKey(evt.
                                                                    key_id,
                                                                    evt.
                                                                    key_symbol,
                                                                    mod,
                                                                    &keysym));
                break;
            case DIET_AXISMOTION:
                if (evt.flags & DIEF_AXISREL) {
                    if (evt.axis == DIAI_X)
                        posted +=
                            SDL_PrivateMouseMotion(0, 1, evt.axisrel, 0);
                    else if (evt.axis == DIAI_Y)
                        posted +=
                            SDL_PrivateMouseMotion(0, 1, 0, evt.axisrel);
                } else if (evt.flags & DIEF_AXISABS) {
                    if (evt.axis == DIAI_X)
                        last_x = evt.axisabs;
                    else if (evt.axis == DIAI_Y)
                        last_y = evt.axisabs;
                    posted += SDL_PrivateMouseMotion(0, 0, last_x, last_y);
                }
                break;
            default:
                ;
            }
        }
    }
}
#endif