| 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 BIOS |
| 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 | static unsigned char bios_currentkeyboard[ATARIBIOS_MAXKEYS]; |
| 43 | static unsigned char bios_previouskeyboard[ATARIBIOS_MAXKEYS]; |
| 44 | static SDL_bool use_dev_mouse = SDL_FALSE; |
| 45 | |
| 46 | static void UpdateSpecialKeys(int special_keys_state); |
| 47 | |
| 48 | void AtariBios_InitOSKeymap(_THIS) |
| 49 | { |
| 50 | int i, vectors_mask; |
| 51 | unsigned long dummy; |
| 52 | |
| 53 | SDL_memset(bios_currentkeyboard, 0, sizeof(bios_currentkeyboard)); |
| 54 | SDL_memset(bios_previouskeyboard, 0, sizeof(bios_previouskeyboard)); |
| 55 | |
| 56 | use_dev_mouse = (SDL_AtariDevMouse_Open()!=0) ? SDL_TRUE : SDL_FALSE; |
| 57 | |
| 58 | vectors_mask = ATARI_XBIOS_JOYSTICKEVENTS; /* XBIOS joystick events */ |
| 59 | if (!use_dev_mouse) { |
| 60 | vectors_mask |= ATARI_XBIOS_MOUSEEVENTS; /* XBIOS mouse events */ |
| 61 | } |
| 62 | /* if (Getcookie(C_MiNT, &dummy)==C_FOUND) { |
| 63 | vectors_mask = 0; |
| 64 | }*/ |
| 65 | |
| 66 | SDL_AtariXbios_InstallVectors(vectors_mask); |
| 67 | } |
| 68 | |
| 69 | void AtariBios_PumpEvents(_THIS) |
| 70 | { |
| 71 | int i; |
| 72 | SDL_keysym keysym; |
| 73 | |
| 74 | /* Update pressed keys */ |
| 75 | SDL_memset(bios_currentkeyboard, 0, ATARIBIOS_MAXKEYS); |
| 76 | |
| 77 | while (Bconstat(_CON)) { |
| 78 | unsigned long key_pressed; |
| 79 | key_pressed=Bconin(_CON); |
| 80 | bios_currentkeyboard[(key_pressed>>16)&(ATARIBIOS_MAXKEYS-1)]=0xFF; |
| 81 | } |
| 82 | |
| 83 | /* Read special keys */ |
| 84 | UpdateSpecialKeys(Kbshift(-1)); |
| 85 | |
| 86 | /* Now generate events */ |
| 87 | for (i=0; i<ATARIBIOS_MAXKEYS; i++) { |
| 88 | /* Key pressed ? */ |
| 89 | if (bios_currentkeyboard[i] && !bios_previouskeyboard[i]) |
| 90 | SDL_PrivateKeyboard(SDL_PRESSED, |
| 91 | SDL_Atari_TranslateKey(i, &keysym, SDL_TRUE)); |
| 92 | |
| 93 | /* Key unpressed ? */ |
| 94 | if (bios_previouskeyboard[i] && !bios_currentkeyboard[i]) |
| 95 | SDL_PrivateKeyboard(SDL_RELEASED, |
| 96 | SDL_Atari_TranslateKey(i, &keysym, SDL_FALSE)); |
| 97 | } |
| 98 | |
| 99 | if (use_dev_mouse) { |
| 100 | SDL_AtariDevMouse_PostMouseEvents(this, SDL_TRUE); |
| 101 | } else { |
| 102 | SDL_AtariXbios_PostMouseEvents(this, SDL_TRUE); |
| 103 | } |
| 104 | |
| 105 | /* Will be previous table */ |
| 106 | SDL_memcpy(bios_previouskeyboard, bios_currentkeyboard, sizeof(bios_previouskeyboard)); |
| 107 | } |
| 108 | |
| 109 | static void UpdateSpecialKeys(int special_keys_state) |
| 110 | { |
| 111 | #define UPDATE_SPECIAL_KEYS(numbit,scancode) \ |
| 112 | { \ |
| 113 | if (special_keys_state & (1<<(numbit))) { \ |
| 114 | bios_currentkeyboard[scancode]=0xFF; \ |
| 115 | } \ |
| 116 | } |
| 117 | |
| 118 | UPDATE_SPECIAL_KEYS(K_RSHIFT, SCANCODE_RIGHTSHIFT); |
| 119 | UPDATE_SPECIAL_KEYS(K_LSHIFT, SCANCODE_LEFTSHIFT); |
| 120 | UPDATE_SPECIAL_KEYS(K_CTRL, SCANCODE_LEFTCONTROL); |
| 121 | UPDATE_SPECIAL_KEYS(K_ALT, SCANCODE_LEFTALT); |
| 122 | UPDATE_SPECIAL_KEYS(K_CAPSLOCK, SCANCODE_CAPSLOCK); |
| 123 | } |
| 124 | |
| 125 | void AtariBios_ShutdownEvents(void) |
| 126 | { |
| 127 | SDL_AtariXbios_RestoreVectors(); |
| 128 | if (use_dev_mouse) { |
| 129 | SDL_AtariDevMouse_Close(); |
| 130 | } |
| 131 | } |