src/video/ataricommon/SDL_gemdosevents.c
author Patrice Mandin
Wed, 20 Sep 2006 21:29:44 +0000
changeset 2033 b657f0bc72c2
parent 2031 f54073d86c82
child 2043 adf732f1f016
permissions -rw-r--r--
More work for 1.3
     1 /*
     2     SDL - Simple DirectMedia Layer
     3     Copyright (C) 1997-2006 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  *	Atari keyboard events manager, using Gemdos
    26  *
    27  *	Patrice Mandin
    28  */
    29 
    30 /* Mint includes */
    31 #include <mint/osbind.h>
    32 #include <mint/cookie.h>
    33 
    34 #include "../../events/SDL_sysevents.h"
    35 #include "../../events/SDL_events_c.h"
    36 
    37 #include "SDL_atarikeys.h"
    38 #include "SDL_atarievents_c.h"
    39 #include "SDL_xbiosevents_c.h"
    40 #include "SDL_ataridevmouse_c.h"
    41 
    42 /* To save state of keyboard */
    43 
    44 static unsigned char gemdos_currentkeyboard[ATARIBIOS_MAXKEYS];
    45 static unsigned char gemdos_previouskeyboard[ATARIBIOS_MAXKEYS];
    46 static SDL_bool use_dev_mouse = SDL_FALSE;
    47 
    48 enum {
    49 	DEV_BUSY=0,
    50 	DEV_READY
    51 };
    52 
    53 static void UpdateSpecialKeys(int special_keys_state);
    54 
    55 void
    56 AtariGemdos_InitOSKeymap(_THIS)
    57 {
    58     int i, vectors_mask;
    59     unsigned long dummy;
    60 
    61     SDL_memset(gemdos_currentkeyboard, 0, sizeof(gemdos_currentkeyboard));
    62     SDL_memset(gemdos_previouskeyboard, 0, sizeof(gemdos_previouskeyboard));
    63 
    64     use_dev_mouse = (SDL_AtariDevMouse_Open() != 0) ? SDL_TRUE : SDL_FALSE;
    65 
    66     vectors_mask = ATARI_XBIOS_JOYSTICKEVENTS;  /* XBIOS joystick events */
    67     if (!use_dev_mouse) {
    68         vectors_mask |= ATARI_XBIOS_MOUSEEVENTS;        /* XBIOS mouse events */
    69     }
    70     /*if (Getcookie(C_MiNT, &dummy) == C_FOUND) {
    71         vectors_mask = 0;
    72     }*/
    73 
    74     SDL_AtariXbios_InstallVectors(vectors_mask);
    75 }
    76 
    77 void
    78 AtariGemdos_PumpEvents(_THIS)
    79 {
    80     int i;
    81     SDL_keysym keysym;
    82 
    83     /* Update pressed keys */
    84     SDL_memset(gemdos_currentkeyboard, 0, ATARIBIOS_MAXKEYS);
    85 
    86     while (Cconis() != DEV_BUSY) {
    87         unsigned long key_pressed;
    88         key_pressed=Cnecin();
    89         gemdos_currentkeyboard[(key_pressed>>16)&(ATARIBIOS_MAXKEYS-1)]=0xFF;
    90     }
    91 
    92     /* Read special keys */
    93     UpdateSpecialKeys(Kbshift(-1));
    94 
    95     /* Now generate events */
    96     for (i = 0; i < ATARIBIOS_MAXKEYS; i++) {
    97         /* Key pressed ? */
    98         if (gemdos_currentkeyboard[i] && !gemdos_previouskeyboard[i])
    99             SDL_PrivateKeyboard(SDL_PRESSED,
   100                                 SDL_Atari_TranslateKey(i, &keysym, SDL_TRUE));
   101 
   102         /* Key unpressed ? */
   103         if (gemdos_previouskeyboard[i] && !gemdos_currentkeyboard[i])
   104             SDL_PrivateKeyboard(SDL_RELEASED,
   105                                 SDL_Atari_TranslateKey(i, &keysym, SDL_FALSE));
   106     }
   107 
   108     if (use_dev_mouse) {
   109         SDL_AtariDevMouse_PostMouseEvents(_this, SDL_TRUE);
   110     } else {
   111         SDL_AtariXbios_PostMouseEvents(_this, SDL_TRUE);
   112     }
   113 
   114     /* Will be previous table */
   115     SDL_memcpy(gemdos_previouskeyboard, gemdos_currentkeyboard,
   116                sizeof(gemdos_previouskeyboard));
   117 }
   118 
   119 static void
   120 UpdateSpecialKeys(int special_keys_state)
   121 {
   122 #define UPDATE_SPECIAL_KEYS(numbit,scancode) \
   123 	{	\
   124 		if (special_keys_state & (1<<(numbit))) { \
   125 			gemdos_currentkeyboard[scancode]=0xFF; \
   126 		}	\
   127 	}
   128 
   129     UPDATE_SPECIAL_KEYS(K_RSHIFT, SCANCODE_RIGHTSHIFT);
   130     UPDATE_SPECIAL_KEYS(K_LSHIFT, SCANCODE_LEFTSHIFT);
   131     UPDATE_SPECIAL_KEYS(K_CTRL, SCANCODE_LEFTCONTROL);
   132     UPDATE_SPECIAL_KEYS(K_ALT, SCANCODE_LEFTALT);
   133     UPDATE_SPECIAL_KEYS(K_CAPSLOCK, SCANCODE_CAPSLOCK);
   134 }
   135 
   136 void
   137 AtariGemdos_ShutdownEvents(void)
   138 {
   139     SDL_AtariXbios_RestoreVectors();
   140     if (use_dev_mouse) {
   141         SDL_AtariDevMouse_Close();
   142     }
   143 }
   144 
   145 /* vi: set ts=4 sw=4 expandtab: */