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annotate src/video/ataricommon/SDL_gemdosevents.c @ 3258:e786366ea23b

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This doesn't actually build on other platforms, I'll have to check with Martin
author Sam Lantinga <slouken@libsdl.org>
date Mon, 07 Sep 2009 05:01:01 +0000
parents 99210400e8b9
children
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2009 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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23
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24 /*
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25 * Atari keyboard events manager, using Gemdos
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26 *
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27 * Patrice Mandin
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28 */
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29
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30 /* Mint includes */
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31 #include <mint/osbind.h>
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32 #include <mint/cookie.h>
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33
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34 #include "../../events/SDL_sysevents.h"
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35 #include "../../events/SDL_events_c.h"
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36
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37 #include "SDL_atarikeys.h"
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38 #include "SDL_atarievents_c.h"
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39 #include "SDL_xbiosevents_c.h"
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40 #include "SDL_ataridevmouse_c.h"
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41
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42 /* To save state of keyboard */
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43
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44 static unsigned char gemdos_currentkeyboard[ATARIBIOS_MAXKEYS];
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45 static unsigned char gemdos_previouskeyboard[ATARIBIOS_MAXKEYS];
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46 static SDL_bool use_dev_mouse = SDL_FALSE;
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47
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48 enum
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49 {
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50 DEV_BUSY = 0,
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51 DEV_READY
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52 };
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53
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54 static void UpdateSpecialKeys(int special_keys_state);
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55
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56 void
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57 AtariGemdos_InitOSKeymap(_THIS)
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58 {
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59 int i, vectors_mask;
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60 unsigned long dummy;
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61
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62 SDL_memset(gemdos_currentkeyboard, 0, sizeof(gemdos_currentkeyboard));
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63 SDL_memset(gemdos_previouskeyboard, 0, sizeof(gemdos_previouskeyboard));
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64
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65 use_dev_mouse = (SDL_AtariDevMouse_Open() != 0) ? SDL_TRUE : SDL_FALSE;
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66
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67 vectors_mask = ATARI_XBIOS_JOYSTICKEVENTS; /* XBIOS joystick events */
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68 if (!use_dev_mouse) {
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69 vectors_mask |= ATARI_XBIOS_MOUSEEVENTS; /* XBIOS mouse events */
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70 }
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71 /*if (Getcookie(C_MiNT, &dummy) == C_FOUND) {
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72 vectors_mask = 0;
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73 } */
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74
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75 SDL_AtariXbios_InstallVectors(vectors_mask);
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76 }
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77
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78 void
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79 AtariGemdos_PumpEvents(_THIS)
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80 {
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81 int i;
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82 SDL_keysym keysym;
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83
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84 /* Update pressed keys */
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85 SDL_memset(gemdos_currentkeyboard, 0, ATARIBIOS_MAXKEYS);
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86
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87 while (Cconis() != DEV_BUSY) {
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88 unsigned long key_pressed;
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89 key_pressed = Cnecin();
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90 gemdos_currentkeyboard[(key_pressed >> 16) & (ATARIBIOS_MAXKEYS - 1)]
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91 = 0xFF;
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92 }
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93
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94 /* Read special keys */
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95 UpdateSpecialKeys(Kbshift(-1));
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96
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97 /* Now generate events */
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98 for (i = 0; i < ATARIBIOS_MAXKEYS; i++) {
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99 /* Key pressed ? */
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100 if (gemdos_currentkeyboard[i] && !gemdos_previouskeyboard[i])
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101 SDL_PrivateKeyboard(SDL_PRESSED,
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102 SDL_Atari_TranslateKey(i, &keysym, SDL_TRUE));
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103
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104 /* Key unpressed ? */
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105 if (gemdos_previouskeyboard[i] && !gemdos_currentkeyboard[i])
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106 SDL_PrivateKeyboard(SDL_RELEASED,
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107 SDL_Atari_TranslateKey(i, &keysym,
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108 SDL_FALSE));
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109 }
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110
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111 if (use_dev_mouse) {
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112 SDL_AtariDevMouse_PostMouseEvents(_this, SDL_TRUE);
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113 } else {
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114 SDL_AtariXbios_PostMouseEvents(_this, SDL_TRUE);
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115 }
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116
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117 /* Will be previous table */
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118 SDL_memcpy(gemdos_previouskeyboard, gemdos_currentkeyboard,
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119 sizeof(gemdos_previouskeyboard));
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120 }
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121
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122 static void
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123 UpdateSpecialKeys(int special_keys_state)
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124 {
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125 #define UPDATE_SPECIAL_KEYS(numbit,scancode) \
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126 { \
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127 if (special_keys_state & (1<<(numbit))) { \
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128 gemdos_currentkeyboard[scancode]=0xFF; \
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129 } \
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130 }
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131
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132 UPDATE_SPECIAL_KEYS(K_RSHIFT, SCANCODE_RIGHTSHIFT);
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133 UPDATE_SPECIAL_KEYS(K_LSHIFT, SCANCODE_LEFTSHIFT);
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134 UPDATE_SPECIAL_KEYS(K_CTRL, SCANCODE_LEFTCONTROL);
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135 UPDATE_SPECIAL_KEYS(K_ALT, SCANCODE_LEFTALT);
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136 UPDATE_SPECIAL_KEYS(K_CAPSLOCK, SCANCODE_CAPSLOCK);
281
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137 }
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138
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139 void
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140 AtariGemdos_ShutdownEvents(void)
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141 {
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142 SDL_AtariXbios_RestoreVectors();
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143 if (use_dev_mouse) {
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144 SDL_AtariDevMouse_Close();
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145 }
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146 }
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147
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148 /* vi: set ts=4 sw=4 expandtab: */