src/video/ataricommon/SDL_gemdosevents.c
author Edgar Simo <bobbens@gmail.com>
Sun, 06 Jul 2008 17:06:37 +0000
branchgsoc2008_force_feedback
changeset 2498 ab567bd667bf
parent 2043 adf732f1f016
child 2859 99210400e8b9
permissions -rw-r--r--
Fixed various mistakes in the doxygen.
     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 {
    50     DEV_BUSY = 0,
    51     DEV_READY
    52 };
    53 
    54 static void UpdateSpecialKeys(int special_keys_state);
    55 
    56 void
    57 AtariGemdos_InitOSKeymap(_THIS)
    58 {
    59     int i, vectors_mask;
    60     unsigned long dummy;
    61 
    62     SDL_memset(gemdos_currentkeyboard, 0, sizeof(gemdos_currentkeyboard));
    63     SDL_memset(gemdos_previouskeyboard, 0, sizeof(gemdos_previouskeyboard));
    64 
    65     use_dev_mouse = (SDL_AtariDevMouse_Open() != 0) ? SDL_TRUE : SDL_FALSE;
    66 
    67     vectors_mask = ATARI_XBIOS_JOYSTICKEVENTS;  /* XBIOS joystick events */
    68     if (!use_dev_mouse) {
    69         vectors_mask |= ATARI_XBIOS_MOUSEEVENTS;        /* XBIOS mouse events */
    70     }
    71     /*if (Getcookie(C_MiNT, &dummy) == C_FOUND) {
    72        vectors_mask = 0;
    73        } */
    74 
    75     SDL_AtariXbios_InstallVectors(vectors_mask);
    76 }
    77 
    78 void
    79 AtariGemdos_PumpEvents(_THIS)
    80 {
    81     int i;
    82     SDL_keysym keysym;
    83 
    84     /* Update pressed keys */
    85     SDL_memset(gemdos_currentkeyboard, 0, ATARIBIOS_MAXKEYS);
    86 
    87     while (Cconis() != DEV_BUSY) {
    88         unsigned long key_pressed;
    89         key_pressed = Cnecin();
    90         gemdos_currentkeyboard[(key_pressed >> 16) & (ATARIBIOS_MAXKEYS - 1)]
    91             = 0xFF;
    92     }
    93 
    94     /* Read special keys */
    95     UpdateSpecialKeys(Kbshift(-1));
    96 
    97     /* Now generate events */
    98     for (i = 0; i < ATARIBIOS_MAXKEYS; i++) {
    99         /* Key pressed ? */
   100         if (gemdos_currentkeyboard[i] && !gemdos_previouskeyboard[i])
   101             SDL_PrivateKeyboard(SDL_PRESSED,
   102                                 SDL_Atari_TranslateKey(i, &keysym, SDL_TRUE));
   103 
   104         /* Key unpressed ? */
   105         if (gemdos_previouskeyboard[i] && !gemdos_currentkeyboard[i])
   106             SDL_PrivateKeyboard(SDL_RELEASED,
   107                                 SDL_Atari_TranslateKey(i, &keysym,
   108                                                        SDL_FALSE));
   109     }
   110 
   111     if (use_dev_mouse) {
   112         SDL_AtariDevMouse_PostMouseEvents(_this, SDL_TRUE);
   113     } else {
   114         SDL_AtariXbios_PostMouseEvents(_this, SDL_TRUE);
   115     }
   116 
   117     /* Will be previous table */
   118     SDL_memcpy(gemdos_previouskeyboard, gemdos_currentkeyboard,
   119                sizeof(gemdos_previouskeyboard));
   120 }
   121 
   122 static void
   123 UpdateSpecialKeys(int special_keys_state)
   124 {
   125 #define UPDATE_SPECIAL_KEYS(numbit,scancode) \
   126 	{	\
   127 		if (special_keys_state & (1<<(numbit))) { \
   128 			gemdos_currentkeyboard[scancode]=0xFF; \
   129 		}	\
   130 	}
   131 
   132     UPDATE_SPECIAL_KEYS(K_RSHIFT, SCANCODE_RIGHTSHIFT);
   133     UPDATE_SPECIAL_KEYS(K_LSHIFT, SCANCODE_LEFTSHIFT);
   134     UPDATE_SPECIAL_KEYS(K_CTRL, SCANCODE_LEFTCONTROL);
   135     UPDATE_SPECIAL_KEYS(K_ALT, SCANCODE_LEFTALT);
   136     UPDATE_SPECIAL_KEYS(K_CAPSLOCK, SCANCODE_CAPSLOCK);
   137 }
   138 
   139 void
   140 AtariGemdos_ShutdownEvents(void)
   141 {
   142     SDL_AtariXbios_RestoreVectors();
   143     if (use_dev_mouse) {
   144         SDL_AtariDevMouse_Close();
   145     }
   146 }
   147 
   148 /* vi: set ts=4 sw=4 expandtab: */