src/video/ataricommon/SDL_gemdosevents.c
author Patrice Mandin
Fri, 26 Aug 2011 14:37:39 +0200
branchSDL-1.2
changeset 5649 02ab15cfa992
parent 4159 a1b03ba2fcd0
child 5651 abba6814a65c
permissions -rw-r--r--
Fix various warnings for uninitialized or unused variables and functions
     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  *	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 #ifndef DEV_BUSY
    49 enum {
    50 	DEV_BUSY=0,
    51 	DEV_READY
    52 };
    53 #endif
    54 
    55 static void UpdateSpecialKeys(int special_keys_state);
    56 
    57 void AtariGemdos_InitOSKeymap(_THIS)
    58 {
    59 	int 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 	SDL_AtariXbios_InstallVectors(vectors_mask);
    75 }
    76 
    77 void AtariGemdos_PumpEvents(_THIS)
    78 {
    79 	int i;
    80 	SDL_keysym keysym;
    81 
    82 	/* Update pressed keys */
    83 	SDL_memset(gemdos_currentkeyboard, 0, ATARIBIOS_MAXKEYS);
    84 
    85 	while (Cconis()!=DEV_BUSY) {
    86 		unsigned long key_pressed;
    87 		key_pressed=Cnecin();
    88 		gemdos_currentkeyboard[(key_pressed>>16)&(ATARIBIOS_MAXKEYS-1)]=0xFF;
    89 	}
    90 
    91 	/* Read special keys */
    92 	UpdateSpecialKeys(Kbshift(-1));
    93 
    94 	/* Now generate events */
    95 	for (i=0; i<ATARIBIOS_MAXKEYS; i++) {
    96 		/* Key pressed ? */
    97 		if (gemdos_currentkeyboard[i] && !gemdos_previouskeyboard[i])
    98 			SDL_PrivateKeyboard(SDL_PRESSED,
    99 				SDL_Atari_TranslateKey(i, &keysym, SDL_TRUE));
   100 			
   101 		/* Key unpressed ? */
   102 		if (gemdos_previouskeyboard[i] && !gemdos_currentkeyboard[i])
   103 			SDL_PrivateKeyboard(SDL_RELEASED,
   104 				SDL_Atari_TranslateKey(i, &keysym, SDL_FALSE));
   105 	}
   106 
   107 	if (use_dev_mouse) {
   108 		SDL_AtariDevMouse_PostMouseEvents(this, SDL_TRUE);
   109 	} else {
   110 		SDL_AtariXbios_PostMouseEvents(this, SDL_TRUE);
   111 	}
   112 
   113 	/* Will be previous table */
   114 	SDL_memcpy(gemdos_previouskeyboard, gemdos_currentkeyboard, sizeof(gemdos_previouskeyboard));
   115 }
   116 
   117 static void UpdateSpecialKeys(int special_keys_state)
   118 {
   119 #define UPDATE_SPECIAL_KEYS(numbit,scancode) \
   120 	{	\
   121 		if (special_keys_state & (1<<(numbit))) { \
   122 			gemdos_currentkeyboard[scancode]=0xFF; \
   123 		}	\
   124 	}
   125 
   126 	UPDATE_SPECIAL_KEYS(K_RSHIFT, SCANCODE_RIGHTSHIFT);
   127 	UPDATE_SPECIAL_KEYS(K_LSHIFT, SCANCODE_LEFTSHIFT);
   128 	UPDATE_SPECIAL_KEYS(K_CTRL, SCANCODE_LEFTCONTROL);
   129 	UPDATE_SPECIAL_KEYS(K_ALT, SCANCODE_LEFTALT);
   130 	UPDATE_SPECIAL_KEYS(K_CAPSLOCK, SCANCODE_CAPSLOCK);
   131 }
   132 
   133 void AtariGemdos_ShutdownEvents(void)
   134 {
   135 	SDL_AtariXbios_RestoreVectors();
   136 	if (use_dev_mouse) {
   137 		SDL_AtariDevMouse_Close();
   138 	}
   139 }