src/video/gem/SDL_gemevents.c
author Sam Lantinga <slouken@libsdl.org>
Mon, 08 Dec 2008 00:27:32 +0000
changeset 2859 99210400e8b9
parent 2199 7e1caa8452f3
permissions -rw-r--r--
Updated copyright date
     1 /*
     2     SDL - Simple DirectMedia Layer
     3     Copyright (C) 1997-2009 Sam Lantinga
     4 
     5     This library is free software; you can redistribute it and/or
     6     modify it under the terms of the GNU Lesser General Public
     7     License as published by the Free Software Foundation; either
     8     version 2.1 of the License, or (at your option) any later version.
     9 
    10     This library is distributed in the hope that it will be useful,
    11     but WITHOUT ANY WARRANTY; without even the implied warranty of
    12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    13     Lesser General Public License for more details.
    14 
    15     You should have received a copy of the GNU Lesser General Public
    16     License along with this library; if not, write to the Free Software
    17     Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
    18 
    19     Sam Lantinga
    20     slouken@libsdl.org
    21 */
    22 #include "SDL_config.h"
    23 
    24 /*
    25  * GEM SDL video driver implementation
    26  * inspired from the Dummy SDL driver
    27  * 
    28  * Patrice Mandin
    29  * and work from
    30  * Olivier Landemarre, Johan Klockars, Xavier Joubert, Claude Attard
    31  */
    32 
    33 #include <gem.h>
    34 
    35 #include "SDL_gemvideo.h"
    36 #include "SDL_gemevents.h"
    37 #include "../../events/SDL_events_c.h"
    38 #include "../ataricommon/SDL_atarikeys.h"       /* for keyboard scancodes */
    39 #include "../ataricommon/SDL_atarievents_c.h"
    40 #include "../ataricommon/SDL_xbiosevents_c.h"
    41 #include "../ataricommon/SDL_ataridevmouse_c.h"
    42 
    43 /* Variables */
    44 
    45 static unsigned char gem_currentkeyboard[ATARIBIOS_MAXKEYS];
    46 static unsigned char gem_previouskeyboard[ATARIBIOS_MAXKEYS];
    47 
    48 /* Functions prototypes */
    49 
    50 static int do_messages(_THIS, short *message);
    51 static void do_keyboard(short kc, short ks);
    52 static void do_mouse(_THIS, short mx, short my, short mb, short ks);
    53 
    54 /* Functions */
    55 
    56 void
    57 GEM_PumpEvents(_THIS)
    58 {
    59 #if 0
    60     short mousex, mousey, mouseb, dummy;
    61     short kstate, prevkc, prevks;
    62     int i;
    63     SDL_keysym keysym;
    64 
    65     SDL_memset(gem_currentkeyboard, 0, sizeof(gem_currentkeyboard));
    66     prevkc = prevks = 0;
    67 
    68     for (;;) {
    69         int quit, resultat, event_mask, mouse_event;
    70         short buffer[8], kc;
    71         short x2, y2, w2, h2;
    72 
    73         quit = mouse_event = x2 = y2 = w2 = h2 = 0;
    74 
    75         event_mask = MU_MESAG | MU_TIMER | MU_KEYBD;
    76         if (!GEM_fullscreen && (GEM_handle >= 0)) {
    77             wind_get(GEM_handle, WF_WORKXYWH, &x2, &y2, &w2, &h2);
    78             event_mask |= MU_M1;
    79             mouse_event = ((SDL_GetAppState() & SDL_APPMOUSEFOCUS) ==
    80                            SDL_APPMOUSEFOCUS) ? MO_LEAVE : MO_ENTER;
    81         }
    82 
    83         resultat = evnt_multi(event_mask,
    84                               0, 0, 0,
    85                               mouse_event, x2, y2, w2, h2,
    86                               0, 0, 0, 0, 0,
    87                               buffer,
    88                               10,
    89                               &dummy, &dummy, &dummy, &kstate, &kc, &dummy);
    90 
    91         /* Message event ? */
    92         if (resultat & MU_MESAG)
    93             quit = do_messages(this, buffer);
    94 
    95         /* Keyboard event ? */
    96         if (resultat & MU_KEYBD) {
    97             if ((prevkc != kc) || (prevks != kstate)) {
    98                 do_keyboard(kc, kstate);
    99             } else {
   100                 /* Avoid looping, if repeating same key */
   101                 break;
   102             }
   103         }
   104 
   105         /* Mouse entering/leaving window */
   106         if (resultat & MU_M1) {
   107             if (this->input_grab == SDL_GRAB_OFF) {
   108                 /* Switch mouse focus state */
   109                 SDL_PrivateAppActive((mouse_event == MO_ENTER),
   110                                      SDL_APPMOUSEFOCUS);
   111             }
   112             GEM_CheckMouseMode(this);
   113         }
   114 
   115         /* Timer event ? */
   116         if ((resultat & MU_TIMER) || quit)
   117             break;
   118     }
   119 
   120     /* Update mouse */
   121     graf_mkstate(&mousex, &mousey, &mouseb, &kstate);
   122     do_mouse(this, mousex, mousey, mouseb, kstate);
   123 
   124     /* Now generate keyboard events */
   125     for (i = 0; i < ATARIBIOS_MAXKEYS; i++) {
   126         /* Key pressed ? */
   127         if (gem_currentkeyboard[i] && !gem_previouskeyboard[i])
   128             SDL_PrivateKeyboard(SDL_PRESSED,
   129                                 SDL_Atari_TranslateKey(i, &keysym, SDL_TRUE));
   130 
   131         /* Key unpressed ? */
   132         if (gem_previouskeyboard[i] && !gem_currentkeyboard[i])
   133             SDL_PrivateKeyboard(SDL_RELEASED,
   134                                 SDL_Atari_TranslateKey(i, &keysym,
   135                                                        SDL_FALSE));
   136     }
   137 
   138     SDL_memcpy(gem_previouskeyboard, gem_currentkeyboard,
   139                sizeof(gem_previouskeyboard));
   140 
   141     /* Refresh window name ? */
   142     if (GEM_refresh_name) {
   143         const char *window_name = (SDL_GetAppState() & SDL_APPACTIVE) ?
   144             GEM_title_name : GEM_icon_name;
   145         if (window_name) {
   146             wind_set(GEM_handle, WF_NAME,
   147                      (short) (((unsigned long) window_name) >> 16),
   148                      (short) (((unsigned long) window_name) & 0xffff), 0, 0);
   149         }
   150         GEM_refresh_name = SDL_FALSE;
   151     }
   152 #endif
   153 }
   154 
   155 static int
   156 do_messages(_THIS, short *message)
   157 {
   158 #if 0
   159     int quit, posted, check_mouse_mode;
   160     short x2, y2, w2, h2;
   161 
   162     quit = check_mouse_mode = 0;
   163     switch (message[0]) {
   164     case WM_CLOSED:
   165     case AP_TERM:
   166         posted = SDL_PrivateQuit();
   167         quit = 1;
   168         break;
   169     case WM_MOVED:
   170         wind_set(message[3], WF_CURRXYWH, message[4], message[5],
   171                  message[6], message[7]);
   172         break;
   173     case WM_TOPPED:
   174         wind_set(message[3], WF_TOP, message[4], 0, 0, 0);
   175         /* Continue with TOP event processing */
   176     case WM_ONTOP:
   177         SDL_PrivateAppActive(1, SDL_APPINPUTFOCUS);
   178         if (VDI_setpalette) {
   179             VDI_setpalette(this, VDI_curpalette);
   180         }
   181         check_mouse_mode = 1;
   182         break;
   183     case WM_REDRAW:
   184         if (!GEM_lock_redraw) {
   185             GEM_wind_redraw(this, message[3], &message[4]);
   186         }
   187         break;
   188     case WM_ICONIFY:
   189     case WM_ALLICONIFY:
   190         wind_set(message[3], WF_ICONIFY, message[4], message[5],
   191                  message[6], message[7]);
   192         /* If we're active, make ourselves inactive */
   193         if (SDL_GetAppState() & SDL_APPACTIVE) {
   194             /* Send an internal deactivate event */
   195             SDL_PrivateAppActive(0, SDL_APPACTIVE);
   196         }
   197         /* Update window title */
   198         if (GEM_refresh_name && GEM_icon_name) {
   199             wind_set(GEM_handle, WF_NAME,
   200                      (short) (((unsigned long) GEM_icon_name) >> 16),
   201                      (short) (((unsigned long) GEM_icon_name) & 0xffff),
   202                      0, 0);
   203             GEM_refresh_name = SDL_FALSE;
   204         }
   205         check_mouse_mode = 1;
   206         break;
   207     case WM_UNICONIFY:
   208         wind_set(message[3], WF_UNICONIFY, message[4], message[5],
   209                  message[6], message[7]);
   210         /* If we're not active, make ourselves active */
   211         if (!(SDL_GetAppState() & SDL_APPACTIVE)) {
   212             /* Send an internal activate event */
   213             SDL_PrivateAppActive(1, SDL_APPACTIVE);
   214         }
   215         if (GEM_refresh_name && GEM_title_name) {
   216             wind_set(GEM_handle, WF_NAME,
   217                      (short) (((unsigned long) GEM_title_name) >> 16),
   218                      (short) (((unsigned long) GEM_title_name) & 0xffff),
   219                      0, 0);
   220             GEM_refresh_name = SDL_FALSE;
   221         }
   222         check_mouse_mode = 1;
   223         break;
   224     case WM_SIZED:
   225         wind_set(message[3], WF_CURRXYWH, message[4], message[5],
   226                  message[6], message[7]);
   227         wind_get(message[3], WF_WORKXYWH, &x2, &y2, &w2, &h2);
   228         GEM_win_fulled = SDL_FALSE;     /* Cancel maximized flag */
   229         GEM_lock_redraw = SDL_TRUE;     /* Prevent redraw till buffers resized */
   230         SDL_PrivateResize(w2, h2);
   231         break;
   232     case WM_FULLED:
   233         {
   234             short x, y, w, h;
   235 
   236             if (GEM_win_fulled) {
   237                 wind_get(message[3], WF_PREVXYWH, &x, &y, &w, &h);
   238                 GEM_win_fulled = SDL_FALSE;
   239             } else {
   240                 x = GEM_desk_x;
   241                 y = GEM_desk_y;
   242                 w = GEM_desk_w;
   243                 h = GEM_desk_h;
   244                 GEM_win_fulled = SDL_TRUE;
   245             }
   246             wind_set(message[3], WF_CURRXYWH, x, y, w, h);
   247             wind_get(message[3], WF_WORKXYWH, &x2, &y2, &w2, &h2);
   248             GEM_lock_redraw = SDL_TRUE; /* Prevent redraw till buffers resized */
   249             SDL_PrivateResize(w2, h2);
   250         }
   251         break;
   252     case WM_BOTTOMED:
   253         wind_set(message[3], WF_BOTTOM, 0, 0, 0, 0);
   254         /* Continue with BOTTOM event processing */
   255     case WM_UNTOPPED:
   256         SDL_PrivateAppActive(0, SDL_APPINPUTFOCUS);
   257         if (VDI_setpalette) {
   258             VDI_setpalette(this, VDI_oldpalette);
   259         }
   260         check_mouse_mode = 1;
   261         break;
   262     }
   263 
   264     if (check_mouse_mode) {
   265         GEM_CheckMouseMode(this);
   266     }
   267 
   268     return quit;
   269 #else
   270     return 0;
   271 #endif
   272 }
   273 
   274 static void
   275 do_keyboard(short kc, short ks)
   276 {
   277 #if 0
   278     int scancode, asciicode;
   279 
   280     if (kc) {
   281         scancode = (kc >> 8) & (ATARIBIOS_MAXKEYS - 1);
   282         gem_currentkeyboard[scancode] = 0xFF;
   283     }
   284 
   285     /* Read special keys */
   286     if (ks & K_RSHIFT)
   287         gem_currentkeyboard[SCANCODE_RIGHTSHIFT] = 0xFF;
   288     if (ks & K_LSHIFT)
   289         gem_currentkeyboard[SCANCODE_LEFTSHIFT] = 0xFF;
   290     if (ks & K_CTRL)
   291         gem_currentkeyboard[SCANCODE_LEFTCONTROL] = 0xFF;
   292     if (ks & K_ALT)
   293         gem_currentkeyboard[SCANCODE_LEFTALT] = 0xFF;
   294 #endif
   295 }
   296 
   297 static void
   298 do_mouse(_THIS, short mx, short my, short mb, short ks)
   299 {
   300 #if 0
   301     static short prevmousex = 0, prevmousey = 0, prevmouseb = 0;
   302     short x2, y2, w2, h2;
   303 
   304     /* Don't return mouse events if out of window */
   305     if ((SDL_GetAppState() & SDL_APPMOUSEFOCUS) == 0) {
   306         return;
   307     }
   308 
   309     /* Retrieve window coords, and generate mouse events accordingly */
   310     x2 = y2 = 0;
   311     w2 = VDI_w;
   312     h2 = VDI_h;
   313     if ((!GEM_fullscreen) && (GEM_handle >= 0)) {
   314         wind_get(GEM_handle, WF_WORKXYWH, &x2, &y2, &w2, &h2);
   315 
   316         /* Do not generate mouse button event if out of window working area */
   317         if ((mx < x2) || (mx >= x2 + w2) || (my < y2) || (my >= y2 + h2)) {
   318             mb = prevmouseb;
   319         }
   320     }
   321 
   322     /* Mouse motion ? */
   323     if (GEM_mouse_relative) {
   324         if (GEM_usedevmouse) {
   325             SDL_AtariDevMouse_PostMouseEvents(this, SDL_FALSE);
   326         } else {
   327             SDL_AtariXbios_PostMouseEvents(this, SDL_FALSE);
   328         }
   329     } else {
   330         if ((prevmousex != mx) || (prevmousey != my)) {
   331             int posx, posy;
   332 
   333             /* Give mouse position relative to window position */
   334             posx = mx - x2;
   335             if (posx < 0)
   336                 posx = 0;
   337             if (posx > w2)
   338                 posx = w2 - 1;
   339             posy = my - y2;
   340             if (posy < 0)
   341                 posy = 0;
   342             if (posy > h2)
   343                 posy = h2 - 1;
   344 
   345             SDL_PrivateMouseMotion(0, 0, posx, posy);
   346         }
   347         prevmousex = mx;
   348         prevmousey = my;
   349     }
   350 
   351     /* Mouse button ? */
   352     if (prevmouseb != mb) {
   353         int i;
   354 
   355         for (i = 0; i < 2; i++) {
   356             int curbutton, prevbutton;
   357 
   358             curbutton = mb & (1 << i);
   359             prevbutton = prevmouseb & (1 << i);
   360 
   361             if (curbutton && !prevbutton) {
   362                 SDL_PrivateMouseButton(SDL_PRESSED, i + 1, 0, 0);
   363             }
   364             if (!curbutton && prevbutton) {
   365                 SDL_PrivateMouseButton(SDL_RELEASED, i + 1, 0, 0);
   366             }
   367         }
   368         prevmouseb = mb;
   369     }
   370 
   371     /* Read special keys */
   372     if (ks & K_RSHIFT)
   373         gem_currentkeyboard[SCANCODE_RIGHTSHIFT] = 0xFF;
   374     if (ks & K_LSHIFT)
   375         gem_currentkeyboard[SCANCODE_LEFTSHIFT] = 0xFF;
   376     if (ks & K_CTRL)
   377         gem_currentkeyboard[SCANCODE_LEFTCONTROL] = 0xFF;
   378     if (ks & K_ALT)
   379         gem_currentkeyboard[SCANCODE_LEFTALT] = 0xFF;
   380 #endif
   381 }
   382 
   383 /* vi: set ts=4 sw=4 expandtab: */