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annotate src/video/ataricommon/SDL_gemdosevents.c @ 2030:d774e9d7c2a8

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Forward keyboard reworking from 1.2
author Patrice Mandin <patmandin@gmail.com>
date Wed, 20 Sep 2006 19:47:09 +0000
parents d20f4510c718
children f54073d86c82
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 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 DEV_BUSY=0,
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50 DEV_READY
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51 };
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52
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53 static void UpdateSpecialKeys(int special_keys_state);
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54
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55 void
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56 AtariGemdos_InitOSKeymap(_THIS)
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57 {
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58 int i, vectors_mask;
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59 unsigned long dummy;
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60
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61 SDL_memset(gemdos_currentkeyboard, 0, sizeof(gemdos_currentkeyboard));
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62 SDL_memset(gemdos_previouskeyboard, 0, sizeof(gemdos_previouskeyboard));
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63
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64 use_dev_mouse = (SDL_AtariDevMouse_Open() != 0) ? SDL_TRUE : SDL_FALSE;
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65
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66 vectors_mask = ATARI_XBIOS_JOYSTICKEVENTS; /* XBIOS joystick events */
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67 if (!use_dev_mouse) {
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68 vectors_mask |= ATARI_XBIOS_MOUSEEVENTS; /* XBIOS mouse events */
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69 }
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70 if (Getcookie(C_MiNT, &dummy) == C_FOUND) {
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71 vectors_mask = 0;
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72 }
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73 SDL_AtariXbios_InstallVectors(vectors_mask);
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74 }
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75
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76 void
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77 AtariGemdos_PumpEvents(_THIS)
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78 {
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79 int i;
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80 SDL_keysym keysym;
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81
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82 /* Update pressed keys */
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83 SDL_memset(gemdos_currentkeyboard, 0, ATARIBIOS_MAXKEYS);
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84
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85 while (Cconis() != DEV_BUSY) {
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86 unsigned long key_pressed;
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87 key_pressed=Cnecin();
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88 gemdos_currentkeyboard[(key_pressed>>16)&(ATARIBIOS_MAXKEYS-1)]=0xFF;
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89 }
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90
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91 /* Read special keys */
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92 UpdateSpecialKeys(Kbshift(-1));
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93
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94 /* Now generate events */
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95 for (i = 0; i < ATARIBIOS_MAXKEYS; i++) {
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96 /* Key pressed ? */
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97 if (gemdos_currentkeyboard[i] && !gemdos_previouskeyboard[i])
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98 SDL_PrivateKeyboard(SDL_PRESSED,
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99 SDL_Atari_TranslateKey(i, &keysym, SDL_TRUE));
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100
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101 /* Key unpressed ? */
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102 if (gemdos_previouskeyboard[i] && !gemdos_currentkeyboard[i])
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103 SDL_PrivateKeyboard(SDL_RELEASED,
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104 SDL_Atari_TranslateKey(i, &keysym, SDL_FALSE));
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105 }
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106
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107 if (use_dev_mouse) {
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108 SDL_AtariDevMouse_PostMouseEvents(this, SDL_TRUE);
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109 } else {
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110 SDL_AtariXbios_PostMouseEvents(this, SDL_TRUE);
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111 }
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112
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113 /* Will be previous table */
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114 SDL_memcpy(gemdos_previouskeyboard, gemdos_currentkeyboard,
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115 sizeof(gemdos_previouskeyboard));
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116 }
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117
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118 static void
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119 UpdateSpecialKeys(int special_keys_state)
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120 {
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121 #define UPDATE_SPECIAL_KEYS(numbit,scancode) \
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122 { \
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123 if (special_keys_state & (1<<(numbit))) { \
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124 gemdos_currentkeyboard[scancode]=0xFF; \
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125 gemdos_currentascii[scancode]=0; \
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126 } \
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127 }
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128
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129 UPDATE_SPECIAL_KEYS(K_RSHIFT, SCANCODE_RIGHTSHIFT);
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130 UPDATE_SPECIAL_KEYS(K_LSHIFT, SCANCODE_LEFTSHIFT);
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131 UPDATE_SPECIAL_KEYS(K_CTRL, SCANCODE_LEFTCONTROL);
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132 UPDATE_SPECIAL_KEYS(K_ALT, SCANCODE_LEFTALT);
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133 UPDATE_SPECIAL_KEYS(K_CAPSLOCK, SCANCODE_CAPSLOCK);
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134 }
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135
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136 void
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137 AtariGemdos_ShutdownEvents(void)
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138 {
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139 SDL_AtariXbios_RestoreVectors();
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140 if (use_dev_mouse) {
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141 SDL_AtariDevMouse_Close();
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142 }
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143 }
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144
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145 /* vi: set ts=4 sw=4 expandtab: */