Mercurial > sdl-ios-xcode

annotate src/video/ataricommon/SDL_gemdosevents.c @ 1643:51038e80ae59

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More general fix for bug #189 The clipping is done at a higher level, and the low level functions are passed clipped rectangles. Drivers which don't support source clipping have not been changed, so the image will be squished instead of clipped, but at least they will no longer crash when the destination rect was out of bounds.
author Sam Lantinga <slouken@libsdl.org>
date Mon, 17 Apr 2006 06:47:23 +0000
parents 2405517b5eab
children 782fd950bd46 c121d94672cb f1816773a309
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 #define ATARIBIOS_MAXKEYS 128
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44
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45 static unsigned char gemdos_currentkeyboard[ATARIBIOS_MAXKEYS];
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46 static unsigned char gemdos_previouskeyboard[ATARIBIOS_MAXKEYS];
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47 static unsigned char gemdos_currentascii[ATARIBIOS_MAXKEYS];
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48 static SDL_bool use_dev_mouse = SDL_FALSE;
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49
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50 /* Special keys state */
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51 enum {
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52 K_RSHIFT=0,
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53 K_LSHIFT,
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54 K_CTRL,
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55 K_ALT,
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56 K_CAPSLOCK,
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57 K_CLRHOME,
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58 K_INSERT
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59 };
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60
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61 enum {
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62 DEV_BUSY=0,
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63 DEV_READY
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64 };
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65
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66 /* The translation tables from a console scancode to a SDL keysym */
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67 static SDLKey keymap[ATARIBIOS_MAXKEYS];
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68
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69 static SDL_keysym *TranslateKey(int scancode, int asciicode, SDL_keysym *keysym,
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70 SDL_bool pressed);
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71 static void UpdateSpecialKeys(int special_keys_state);
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72
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73 void AtariGemdos_InitOSKeymap(_THIS)
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74 {
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75 int i, vectors_mask;
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76 unsigned long dummy;
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77
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78 SDL_memset(gemdos_currentkeyboard, 0, sizeof(gemdos_currentkeyboard));
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79 SDL_memset(gemdos_previouskeyboard, 0, sizeof(gemdos_previouskeyboard));
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80
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81 /* Initialize keymap */
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82 for ( i=0; i<sizeof(keymap); i++ )
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83 keymap[i] = SDLK_UNKNOWN;
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84
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85 /* Functions keys */
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86 for ( i = 0; i<10; i++ )
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87 keymap[SCANCODE_F1 + i] = SDLK_F1+i;
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88
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89 /* Cursor keypad */
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90 keymap[SCANCODE_HELP] = SDLK_HELP;
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91 keymap[SCANCODE_UNDO] = SDLK_UNDO;
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92 keymap[SCANCODE_INSERT] = SDLK_INSERT;
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93 keymap[SCANCODE_CLRHOME] = SDLK_HOME;
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94 keymap[SCANCODE_UP] = SDLK_UP;
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95 keymap[SCANCODE_DOWN] = SDLK_DOWN;
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96 keymap[SCANCODE_RIGHT] = SDLK_RIGHT;
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97 keymap[SCANCODE_LEFT] = SDLK_LEFT;
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98
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99 /* Special keys */
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100 keymap[SCANCODE_ESCAPE] = SDLK_ESCAPE;
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101 keymap[SCANCODE_BACKSPACE] = SDLK_BACKSPACE;
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102 keymap[SCANCODE_TAB] = SDLK_TAB;
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103 keymap[SCANCODE_ENTER] = SDLK_RETURN;
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104 keymap[SCANCODE_DELETE] = SDLK_DELETE;
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105 keymap[SCANCODE_LEFTCONTROL] = SDLK_LCTRL;
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106 keymap[SCANCODE_LEFTSHIFT] = SDLK_LSHIFT;
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107 keymap[SCANCODE_RIGHTSHIFT] = SDLK_RSHIFT;
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108 keymap[SCANCODE_LEFTALT] = SDLK_LALT;
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109 keymap[SCANCODE_CAPSLOCK] = SDLK_CAPSLOCK;
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110
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111 use_dev_mouse = (SDL_AtariDevMouse_Open()!=0) ? SDL_TRUE : SDL_FALSE;
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112
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113 vectors_mask = ATARI_XBIOS_JOYSTICKEVENTS; /* XBIOS joystick events */
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114 if (!use_dev_mouse) {
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115 vectors_mask |= ATARI_XBIOS_MOUSEEVENTS; /* XBIOS mouse events */
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116 }
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117 if (Getcookie(C_MiNT, &dummy)==C_FOUND) {
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118 vectors_mask = 0;
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119 }
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120 SDL_AtariXbios_InstallVectors(vectors_mask);
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121 }
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122
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123 void AtariGemdos_PumpEvents(_THIS)
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124 {
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125 int i;
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126 SDL_keysym keysym;
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127
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128 /* Update pressed keys */
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129 SDL_memset(gemdos_currentkeyboard, 0, ATARIBIOS_MAXKEYS);
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130
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131 while (Cconis()!=DEV_BUSY) {
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132 unsigned long key_pressed;
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133 unsigned char scancode, asciicode;
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134
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135 key_pressed=Cnecin();
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136
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137 asciicode = key_pressed;
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138 scancode = key_pressed >> 16;
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139
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140 gemdos_currentkeyboard[scancode]=0xFF;
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141 gemdos_currentascii[scancode]=asciicode;
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142 }
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143
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144 /* Read special keys */
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145 UpdateSpecialKeys(Kbshift(-1));
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146
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147 /* Now generate events */
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148 for (i=0; i<ATARIBIOS_MAXKEYS; i++) {
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149 /* Key pressed ? */
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150 if (gemdos_currentkeyboard[i] && !gemdos_previouskeyboard[i])
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151 SDL_PrivateKeyboard(SDL_PRESSED,
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152 TranslateKey(i, gemdos_currentascii[i], &keysym, SDL_TRUE));
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153
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154 /* Key unpressed ? */
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155 if (gemdos_previouskeyboard[i] && !gemdos_currentkeyboard[i])
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156 SDL_PrivateKeyboard(SDL_RELEASED,
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157 TranslateKey(i, gemdos_currentascii[i], &keysym, SDL_FALSE));
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158 }
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159
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160 if (use_dev_mouse) {
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161 SDL_AtariDevMouse_PostMouseEvents(this, SDL_TRUE);
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162 } else {
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163 SDL_AtariXbios_PostMouseEvents(this, SDL_TRUE);
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164 }
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165
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166 /* Will be previous table */
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167 SDL_memcpy(gemdos_previouskeyboard, gemdos_currentkeyboard, ATARIBIOS_MAXKEYS);
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168 }
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169
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170 static void UpdateSpecialKeys(int special_keys_state)
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171 {
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172 #define UPDATE_SPECIAL_KEYS(numbit,scancode) \
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173 { \
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174 if (special_keys_state & (1<<(numbit))) { \
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175 gemdos_currentkeyboard[scancode]=0xFF; \
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176 gemdos_currentascii[scancode]=0; \
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177 } \
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178 }
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179
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180 UPDATE_SPECIAL_KEYS(K_RSHIFT, SCANCODE_RIGHTSHIFT);
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181 UPDATE_SPECIAL_KEYS(K_LSHIFT, SCANCODE_LEFTSHIFT);
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182 UPDATE_SPECIAL_KEYS(K_CTRL, SCANCODE_LEFTCONTROL);
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183 UPDATE_SPECIAL_KEYS(K_ALT, SCANCODE_LEFTALT);
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184 UPDATE_SPECIAL_KEYS(K_CAPSLOCK, SCANCODE_CAPSLOCK);
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185 }
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186
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187 static SDL_keysym *TranslateKey(int scancode, int asciicode, SDL_keysym *keysym,
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188 SDL_bool pressed)
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189 {
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190 /* Set the keysym information */
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191 keysym->scancode = scancode;
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192
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193 if (asciicode)
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194 keysym->sym = asciicode;
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195 else
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196 keysym->sym = keymap[scancode];
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197
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198 keysym->mod = KMOD_NONE;
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199 keysym->unicode = 0;
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200 if (SDL_TranslateUNICODE && pressed) {
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201 keysym->unicode = SDL_AtariToUnicodeTable[asciicode];
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202 }
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203
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204 return(keysym);
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205 }
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206
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207 void AtariGemdos_ShutdownEvents(void)
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208 {
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209 SDL_AtariXbios_RestoreVectors();
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210 if (use_dev_mouse) {
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211 SDL_AtariDevMouse_Close();
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212 }
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213 }