src/video/gem/SDL_gemevents.c
author Patrice Mandin <patmandin@gmail.com>
Sat, 03 Sep 2011 09:52:45 +0200
branchSDL-1.2
changeset 5867 94e0116059f4
parent 5649 02ab15cfa992
child 6137 4720145f848b
permissions -rw-r--r--
Remove unused variables
     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 "../../events/SDL_sysevents.h"
    36 #include "../../events/SDL_events_c.h"
    37 #include "SDL_gemvideo.h"
    38 #include "SDL_gemevents_c.h"
    39 #include "SDL_gemmouse_c.h"
    40 #include "../ataricommon/SDL_atarikeys.h"	/* for keyboard scancodes */
    41 #include "../ataricommon/SDL_atarievents_c.h"
    42 #include "../ataricommon/SDL_xbiosevents_c.h"
    43 #include "../ataricommon/SDL_ataridevmouse_c.h"
    44 
    45 /* Variables */
    46 
    47 static unsigned char gem_currentkeyboard[ATARIBIOS_MAXKEYS];
    48 static unsigned char gem_previouskeyboard[ATARIBIOS_MAXKEYS];
    49 
    50 /* Functions prototypes */
    51 
    52 static int do_messages(_THIS, short *message);
    53 static void do_keyboard(short kc, short ks);
    54 static void do_mouse(_THIS, short mx, short my, short mb, short ks);
    55 
    56 /* Functions */
    57 
    58 void GEM_InitOSKeymap(_THIS)
    59 {
    60 	SDL_memset(gem_currentkeyboard, 0, sizeof(gem_currentkeyboard));
    61 	SDL_memset(gem_previouskeyboard, 0, sizeof(gem_previouskeyboard));
    62 
    63 	/* Mouse init */
    64 	GEM_mouse_relative = SDL_FALSE;
    65 
    66 	SDL_Atari_InitInternalKeymap(this);
    67 }
    68 
    69 void GEM_PumpEvents(_THIS)
    70 {
    71 	short prevkc, prevks;
    72 	static short maskmouseb=0;
    73 	int i;
    74 	SDL_keysym	keysym;
    75 
    76 	SDL_memset(gem_currentkeyboard,0,sizeof(gem_currentkeyboard));
    77 	prevkc = prevks = 0;
    78 
    79 	for (;;)
    80 	{
    81 		int quit, resultat, event_mask, mouse_event;
    82 		short buffer[8], kc;
    83 		short x2,y2,w2,h2;
    84 		short mousex, mousey, mouseb, dummy;
    85 		short kstate;
    86 
    87 		quit =
    88 			mouse_event =
    89 			x2=y2=w2=h2 = 0;
    90 
    91 		event_mask = MU_MESAG|MU_TIMER|MU_KEYBD|MU_BUTTON;
    92 		if (!GEM_fullscreen && (GEM_handle>=0)) {
    93 			wind_get (GEM_handle, WF_WORKXYWH, &x2, &y2, &w2, &h2);
    94 			event_mask |= MU_M1;
    95 			mouse_event = ( (SDL_GetAppState() & SDL_APPMOUSEFOCUS)
    96 				== SDL_APPMOUSEFOCUS) ? MO_LEAVE : MO_ENTER;
    97 		}
    98 
    99 		resultat = evnt_multi(
   100 			event_mask,
   101 			0x101,7,maskmouseb,
   102 			mouse_event,x2,y2,w2,h2,
   103 			0,0,0,0,0,
   104 			buffer,
   105 			10,
   106 			&mousex,&mousey,&mouseb,&kstate,&kc,&dummy
   107 		);
   108 
   109 		/* Message event ? */
   110 		if (resultat & MU_MESAG)
   111 			quit = do_messages(this, buffer);
   112 
   113 		/* Keyboard event ? */
   114 		if (resultat & MU_KEYBD) {
   115 			if ((prevkc != kc) || (prevks != kstate)) {
   116 				do_keyboard(kc,kstate);
   117 			} else {
   118 				/* Avoid looping, if repeating same key */
   119 				break;
   120 			}
   121 		}
   122 
   123 		/* Mouse entering/leaving window */
   124 		if (resultat & MU_M1) {
   125 			if (this->input_grab == SDL_GRAB_OFF) {
   126 				/* Switch mouse focus state */
   127 				SDL_PrivateAppActive((mouse_event == MO_ENTER),
   128 					SDL_APPMOUSEFOCUS);
   129 			}
   130 			GEM_CheckMouseMode(this);
   131 		}
   132 
   133 		/* Mouse button event ? */
   134 		if (resultat & MU_BUTTON) {
   135 			do_mouse(this, mousex, mousey, mouseb, kstate);
   136 			maskmouseb = mouseb & 7;
   137 		}
   138 
   139 		/* Timer event ? */
   140 		if ((resultat & MU_TIMER) || quit)
   141 			break;
   142 	}
   143 
   144 	/* Now generate keyboard events */
   145 	for (i=0; i<ATARIBIOS_MAXKEYS; i++) {
   146 		/* Key pressed ? */
   147 		if (gem_currentkeyboard[i] && !gem_previouskeyboard[i])
   148 			SDL_PrivateKeyboard(SDL_PRESSED,
   149 				SDL_Atari_TranslateKey(i, &keysym, SDL_TRUE));
   150 			
   151 		/* Key unpressed ? */
   152 		if (gem_previouskeyboard[i] && !gem_currentkeyboard[i])
   153 			SDL_PrivateKeyboard(SDL_RELEASED,
   154 				SDL_Atari_TranslateKey(i, &keysym, SDL_FALSE));
   155 	}
   156 
   157 	SDL_memcpy(gem_previouskeyboard,gem_currentkeyboard,sizeof(gem_previouskeyboard));
   158 
   159 	/* Refresh window name ? */
   160 	if (GEM_refresh_name) {
   161 		const char *window_name =
   162 			(SDL_GetAppState() & SDL_APPACTIVE)
   163 			? GEM_title_name : GEM_icon_name;
   164 		if (window_name) {
   165 			wind_set(GEM_handle,WF_NAME,
   166 				(short)(((unsigned long)window_name)>>16),
   167 				(short)(((unsigned long)window_name) & 0xffff),
   168 				0,0);
   169 		}
   170 		GEM_refresh_name = SDL_FALSE;
   171 	}
   172 }
   173 
   174 static int do_messages(_THIS, short *message)
   175 {
   176 	int quit, check_mouse_mode;
   177 	short x2,y2,w2,h2;
   178 
   179 	quit = check_mouse_mode = 0;
   180 	switch (message[0]) {
   181 		case WM_CLOSED:
   182 		case AP_TERM:    
   183 			SDL_PrivateQuit();
   184 			quit=1;
   185 			break;
   186 		case WM_MOVED:
   187 			wind_set(message[3],WF_CURRXYWH,message[4],message[5],message[6],message[7]);
   188 			break;
   189 		case WM_TOPPED:
   190 			wind_set(message[3],WF_TOP,message[4],0,0,0);
   191 			/* Continue with TOP event processing */
   192 		case WM_ONTOP:
   193 			SDL_PrivateAppActive(1, SDL_APPINPUTFOCUS);
   194 			if (VDI_setpalette) {
   195 				VDI_setpalette(this, VDI_curpalette);
   196 			}
   197 			check_mouse_mode = 1;
   198 			break;
   199 		case WM_REDRAW:
   200 			if (!GEM_lock_redraw) {
   201 				GEM_wind_redraw(this, message[3],&message[4]);
   202 			}
   203 			break;
   204 		case WM_ICONIFY:
   205 		case WM_ALLICONIFY:
   206 			wind_set(message[3],WF_ICONIFY,message[4],message[5],message[6],message[7]);
   207 			/* If we're active, make ourselves inactive */
   208 			if ( SDL_GetAppState() & SDL_APPACTIVE ) {
   209 				/* Send an internal deactivate event */
   210 				SDL_PrivateAppActive(0, SDL_APPACTIVE);
   211 			}
   212 			/* Update window title */
   213 			if (GEM_refresh_name && GEM_icon_name) {
   214 				wind_set(GEM_handle,WF_NAME,(short)(((unsigned long)GEM_icon_name)>>16),(short)(((unsigned long)GEM_icon_name) & 0xffff),0,0);
   215 				GEM_refresh_name = SDL_FALSE;
   216 			}
   217 			check_mouse_mode = 1;
   218 			break;
   219 		case WM_UNICONIFY:
   220 			wind_set(message[3],WF_UNICONIFY,message[4],message[5],message[6],message[7]);
   221 			/* If we're not active, make ourselves active */
   222 			if ( !(SDL_GetAppState() & SDL_APPACTIVE) ) {
   223 				/* Send an internal activate event */
   224 				SDL_PrivateAppActive(1, SDL_APPACTIVE);
   225 			}
   226 			if (GEM_refresh_name && GEM_title_name) {
   227 				wind_set(GEM_handle,WF_NAME,(short)(((unsigned long)GEM_title_name)>>16),(short)(((unsigned long)GEM_title_name) & 0xffff),0,0);
   228 				GEM_refresh_name = SDL_FALSE;
   229 			}
   230 			check_mouse_mode = 1;
   231 			break;
   232 		case WM_SIZED:
   233 			wind_set (message[3], WF_CURRXYWH, message[4], message[5], message[6], message[7]);
   234 			wind_get (message[3], WF_WORKXYWH, &x2, &y2, &w2, &h2);
   235 			GEM_win_fulled = SDL_FALSE;		/* Cancel maximized flag */
   236 			GEM_lock_redraw = SDL_TRUE;		/* Prevent redraw till buffers resized */
   237 			SDL_PrivateResize(w2, h2);
   238 			break;
   239 		case WM_FULLED:
   240 			{
   241 				short x,y,w,h;
   242 
   243 				if (GEM_win_fulled) {
   244 					wind_get (message[3], WF_PREVXYWH, &x, &y, &w, &h);
   245 					GEM_win_fulled = SDL_FALSE;
   246 				} else {
   247 					x = GEM_desk_x;
   248 					y = GEM_desk_y;
   249 					w = GEM_desk_w;
   250 					h = GEM_desk_h;
   251 					GEM_win_fulled = SDL_TRUE;
   252 				}
   253 				wind_set (message[3], WF_CURRXYWH, x, y, w, h);
   254 				wind_get (message[3], WF_WORKXYWH, &x2, &y2, &w2, &h2);
   255 				GEM_lock_redraw = SDL_TRUE;		/* Prevent redraw till buffers resized */
   256 				SDL_PrivateResize(w2, h2);
   257 			}
   258 			break;
   259 		case WM_BOTTOMED:
   260 			wind_set(message[3],WF_BOTTOM,0,0,0,0);
   261 			/* Continue with BOTTOM event processing */
   262 		case WM_UNTOPPED:
   263 			SDL_PrivateAppActive(0, SDL_APPINPUTFOCUS);
   264 			if (VDI_setpalette) {
   265 				VDI_setpalette(this, VDI_oldpalette);
   266 			}
   267 			check_mouse_mode = 1;
   268 			break;
   269 	}
   270 
   271 	if (check_mouse_mode) {
   272 		GEM_CheckMouseMode(this);
   273 	}
   274 	
   275 	return quit;
   276 }
   277 
   278 static void do_keyboard(short kc, short ks)
   279 {
   280 	int scancode;
   281 
   282 	if (kc) {
   283 		scancode=(kc>>8) & (ATARIBIOS_MAXKEYS-1);
   284 		gem_currentkeyboard[scancode]=0xFF;
   285 	}
   286 
   287 	/* Read special keys */
   288 	if (ks & K_RSHIFT)
   289 		gem_currentkeyboard[SCANCODE_RIGHTSHIFT]=0xFF;
   290 	if (ks & K_LSHIFT)
   291 		gem_currentkeyboard[SCANCODE_LEFTSHIFT]=0xFF;
   292 	if (ks & K_CTRL)
   293 		gem_currentkeyboard[SCANCODE_LEFTCONTROL]=0xFF;
   294 	if (ks & K_ALT)
   295 		gem_currentkeyboard[SCANCODE_LEFTALT]=0xFF;
   296 }
   297 
   298 static void do_mouse(_THIS, short mx, short my, short mb, short ks)
   299 {
   300 	static short prevmousex=0, prevmousey=0, prevmouseb=0;
   301 	short x2, y2, w2, h2;
   302 
   303 	/* Don't return mouse events if out of window */
   304 	if ((SDL_GetAppState() & SDL_APPMOUSEFOCUS)==0) {
   305 		return;
   306 	}
   307 
   308 	/* Retrieve window coords, and generate mouse events accordingly */
   309 	x2 = y2 = 0;
   310 	w2 = VDI_w;
   311 	h2 = VDI_h;
   312 	if ((!GEM_fullscreen) && (GEM_handle>=0)) {
   313 		wind_get (GEM_handle, WF_WORKXYWH, &x2, &y2, &w2, &h2);
   314 
   315 		/* Do not generate mouse button event if out of window working area */
   316 		if ((mx<x2) || (mx>=x2+w2) || (my<y2) || (my>=y2+h2)) {
   317 			mb=prevmouseb;
   318 		}
   319 	}
   320 
   321 	/* Mouse motion ? */
   322 	if (GEM_mouse_relative) {
   323 		if (GEM_usedevmouse) {
   324 			SDL_AtariDevMouse_PostMouseEvents(this, SDL_FALSE);
   325 		} else {
   326 			SDL_AtariXbios_PostMouseEvents(this, SDL_FALSE);
   327 		}
   328 	} else {
   329 		if ((prevmousex!=mx) || (prevmousey!=my)) {
   330 			int posx, posy;
   331 
   332 			/* Give mouse position relative to window position */
   333 			posx = mx - x2;
   334 			if (posx<0) posx = 0;
   335 			if (posx>w2) posx = w2-1;
   336 			posy = my - y2;
   337 			if (posy<0) posy = 0;
   338 			if (posy>h2) posy = h2-1;
   339 
   340 			SDL_PrivateMouseMotion(0, 0, posx, posy);
   341 		}
   342 		prevmousex = mx;
   343 		prevmousey = my;
   344 	}
   345 
   346 	/* Mouse button ? */
   347 	if (prevmouseb!=mb) {
   348 		int i;
   349 
   350 		for (i=0;i<3;i++) {
   351 			int curbutton, prevbutton;
   352 		
   353 			curbutton = mb & (1<<i);
   354 			prevbutton = prevmouseb & (1<<i);
   355 		
   356 			if (curbutton && !prevbutton) {
   357 				SDL_PrivateMouseButton(SDL_PRESSED, i+1, 0, 0);
   358 			}
   359 			if (!curbutton && prevbutton) {
   360 				SDL_PrivateMouseButton(SDL_RELEASED, i+1, 0, 0);
   361 			}
   362 		}
   363 		prevmouseb = mb;
   364 	}
   365 
   366 	/* Read special keys */
   367 	if (ks & K_RSHIFT)
   368 		gem_currentkeyboard[SCANCODE_RIGHTSHIFT]=0xFF;
   369 	if (ks & K_LSHIFT)
   370 		gem_currentkeyboard[SCANCODE_LEFTSHIFT]=0xFF;
   371 	if (ks & K_CTRL)
   372 		gem_currentkeyboard[SCANCODE_LEFTCONTROL]=0xFF;
   373 	if (ks & K_ALT)
   374 		gem_currentkeyboard[SCANCODE_LEFTALT]=0xFF;
   375 }