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1 /* |
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2 SDL - Simple DirectMedia Layer |
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3 Copyright (C) 1997-2004 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 Library General Public |
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7 License as published by the Free Software Foundation; either |
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8 version 2 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 Library 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 Library General Public |
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16 License along with this library; if not, write to the Free |
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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 File added by Alan Buckley (alan_baa@hotmail.com) for RISC OS compatability |
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26 27 March 2003 |
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27 |
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28 Implements keyboard setup, event pump and keyboard and mouse polling |
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29 */ |
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30 |
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31 |
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32 #include "SDL.h" |
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33 #include "../../timer/SDL_timer_c.h" |
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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 #include "../SDL_cursor_c.h" |
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37 #include "SDL_riscosvideo.h" |
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38 #include "SDL_riscosevents_c.h" |
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39 |
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40 #include "memory.h" |
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41 #include "stdlib.h" |
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42 #include "ctype.h" |
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43 |
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44 #include "kernel.h" |
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45 #include "swis.h" |
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46 |
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47 /* The translation table from a RISC OS internal key numbers to a SDL keysym */ |
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48 static SDLKey RO_keymap[SDLK_LAST]; |
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49 |
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50 /* RISC OS Key codes */ |
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51 #define ROKEY_SHIFT 0 |
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52 #define ROKEY_CTRL 1 |
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53 #define ROKEY_ALT 2 |
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54 /* Left shift is first key we will check for */ |
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55 #define ROKEY_LEFT_SHIFT 3 |
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56 |
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57 /* Need to ignore mouse buttons as they are processed separately */ |
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58 #define ROKEY_LEFT_MOUSE 9 |
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59 #define ROKEY_CENTRE_MOUSE 10 |
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60 #define ROKEY_RIGHT_MOUSE 11 |
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61 |
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62 /* No key has been pressed return value*/ |
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63 #define ROKEY_NONE 255 |
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64 |
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65 /* Id of last key in keyboard */ |
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66 #define ROKEY_LAST_KEY 124 |
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67 |
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68 /* Size of array for all keys */ |
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69 #define ROKEYBD_ARRAYSIZE 125 |
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70 |
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71 static char RO_pressed[ROKEYBD_ARRAYSIZE]; |
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72 |
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73 static SDL_keysym *TranslateKey(int intkey, SDL_keysym *keysym, int pressed); |
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74 |
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75 void RISCOS_PollMouse(_THIS); |
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76 void RISCOS_PollKeyboard(); |
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77 |
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78 void RISCOS_PollMouseHelper(_THIS, int fullscreen); |
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79 |
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80 #if SDL_THREADS_DISABLED |
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81 extern void DRenderer_FillBuffers(); |
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82 |
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83 /* Timer running function */ |
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84 extern void RISCOS_CheckTimer(); |
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85 |
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86 #endif |
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87 |
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88 void FULLSCREEN_PumpEvents(_THIS) |
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89 { |
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90 /* Current implementation requires keyboard and mouse polling */ |
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91 RISCOS_PollKeyboard(); |
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92 RISCOS_PollMouse(this); |
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93 #if SDL_THREADS_DISABLED |
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94 // DRenderer_FillBuffers(); |
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95 if (SDL_timer_running) RISCOS_CheckTimer(); |
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96 #endif |
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97 } |
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98 |
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99 |
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100 void RISCOS_InitOSKeymap(_THIS) |
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101 { |
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102 int i; |
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103 |
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104 /* Map the VK keysyms */ |
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105 for ( i=0; i<SDL_arraysize(RO_keymap); ++i ) |
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106 RO_keymap[i] = SDLK_UNKNOWN; |
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107 |
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108 RO_keymap[3] = SDLK_LSHIFT; |
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109 RO_keymap[4] = SDLK_LCTRL; |
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110 RO_keymap[5] = SDLK_LALT; |
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111 RO_keymap[6] = SDLK_RSHIFT; |
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112 RO_keymap[7] = SDLK_RCTRL; |
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113 RO_keymap[8] = SDLK_RALT; |
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114 RO_keymap[16] = SDLK_q; |
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115 RO_keymap[17] = SDLK_3; |
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116 RO_keymap[18] = SDLK_4; |
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117 RO_keymap[19] = SDLK_5; |
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118 RO_keymap[20] = SDLK_F4; |
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119 RO_keymap[21] = SDLK_8; |
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120 RO_keymap[22] = SDLK_F7; |
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121 RO_keymap[23] = SDLK_MINUS, |
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122 RO_keymap[25] = SDLK_LEFT; |
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123 RO_keymap[26] = SDLK_KP6; |
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124 RO_keymap[27] = SDLK_KP7; |
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125 RO_keymap[28] = SDLK_F11; |
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126 RO_keymap[29] = SDLK_F12; |
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127 RO_keymap[30] = SDLK_F10; |
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128 RO_keymap[31] = SDLK_SCROLLOCK; |
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129 RO_keymap[32] = SDLK_PRINT; |
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130 RO_keymap[33] = SDLK_w; |
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131 RO_keymap[34] = SDLK_e; |
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132 RO_keymap[35] = SDLK_t; |
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133 RO_keymap[36] = SDLK_7; |
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134 RO_keymap[37] = SDLK_i; |
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135 RO_keymap[38] = SDLK_9; |
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136 RO_keymap[39] = SDLK_0; |
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137 RO_keymap[41] = SDLK_DOWN; |
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138 RO_keymap[42] = SDLK_KP8; |
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139 RO_keymap[43] = SDLK_KP9; |
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140 RO_keymap[44] = SDLK_BREAK; |
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141 RO_keymap[45] = SDLK_BACKQUOTE; |
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142 /* RO_keymap[46] = SDLK_currency; TODO: Figure out if this has a value */ |
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143 RO_keymap[47] = SDLK_BACKSPACE; |
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144 RO_keymap[48] = SDLK_1; |
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145 RO_keymap[49] = SDLK_2; |
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146 RO_keymap[50] = SDLK_d; |
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147 RO_keymap[51] = SDLK_r; |
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148 RO_keymap[52] = SDLK_6; |
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149 RO_keymap[53] = SDLK_u; |
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150 RO_keymap[54] = SDLK_o; |
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151 RO_keymap[55] = SDLK_p; |
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152 RO_keymap[56] = SDLK_LEFTBRACKET; |
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153 RO_keymap[57] = SDLK_UP; |
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154 RO_keymap[58] = SDLK_KP_PLUS; |
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155 RO_keymap[59] = SDLK_KP_MINUS; |
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156 RO_keymap[60] = SDLK_KP_ENTER; |
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157 RO_keymap[61] = SDLK_INSERT; |
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158 RO_keymap[62] = SDLK_HOME; |
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159 RO_keymap[63] = SDLK_PAGEUP; |
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160 RO_keymap[64] = SDLK_CAPSLOCK; |
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161 RO_keymap[65] = SDLK_a; |
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162 RO_keymap[66] = SDLK_x; |
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163 RO_keymap[67] = SDLK_f; |
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164 RO_keymap[68] = SDLK_y; |
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165 RO_keymap[69] = SDLK_j; |
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166 RO_keymap[70] = SDLK_k; |
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167 RO_keymap[72] = SDLK_SEMICOLON; |
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168 RO_keymap[73] = SDLK_RETURN; |
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169 RO_keymap[74] = SDLK_KP_DIVIDE; |
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170 RO_keymap[76] = SDLK_KP_PERIOD; |
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171 RO_keymap[77] = SDLK_NUMLOCK; |
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172 RO_keymap[78] = SDLK_PAGEDOWN; |
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173 RO_keymap[79] = SDLK_QUOTE; |
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174 RO_keymap[81] = SDLK_s; |
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175 RO_keymap[82] = SDLK_c; |
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176 RO_keymap[83] = SDLK_g; |
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177 RO_keymap[84] = SDLK_h; |
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178 RO_keymap[85] = SDLK_n; |
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179 RO_keymap[86] = SDLK_l; |
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180 RO_keymap[87] = SDLK_SEMICOLON; |
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181 RO_keymap[88] = SDLK_RIGHTBRACKET; |
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182 RO_keymap[89] = SDLK_DELETE; |
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183 RO_keymap[90] = SDLK_KP_MINUS; |
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184 RO_keymap[91] = SDLK_KP_MULTIPLY; |
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185 RO_keymap[93] = SDLK_EQUALS; |
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186 RO_keymap[94] = SDLK_BACKSLASH; |
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187 RO_keymap[96] = SDLK_TAB; |
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188 RO_keymap[97] = SDLK_z; |
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189 RO_keymap[98] = SDLK_SPACE; |
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190 RO_keymap[99] = SDLK_v; |
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191 RO_keymap[100] = SDLK_b; |
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192 RO_keymap[101] = SDLK_m; |
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193 RO_keymap[102] = SDLK_COMMA; |
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194 RO_keymap[103] = SDLK_PERIOD; |
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195 RO_keymap[104] = SDLK_SLASH; |
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196 RO_keymap[105] = SDLK_END; |
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197 RO_keymap[106] = SDLK_KP0; |
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198 RO_keymap[107] = SDLK_KP1; |
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199 RO_keymap[108] = SDLK_KP3; |
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200 RO_keymap[112] = SDLK_ESCAPE; |
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201 RO_keymap[113] = SDLK_F1; |
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202 RO_keymap[114] = SDLK_F2; |
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203 RO_keymap[115] = SDLK_F3; |
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204 RO_keymap[116] = SDLK_F5; |
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205 RO_keymap[117] = SDLK_F6; |
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206 RO_keymap[118] = SDLK_F8; |
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207 RO_keymap[119] = SDLK_F9; |
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208 RO_keymap[120] = SDLK_HASH; |
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209 RO_keymap[121] = SDLK_RIGHT; |
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210 RO_keymap[122] = SDLK_KP4; |
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211 RO_keymap[123] = SDLK_KP5; |
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212 RO_keymap[124] = SDLK_KP2; |
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213 |
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214 SDL_memset(RO_pressed, 0, ROKEYBD_ARRAYSIZE); |
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215 } |
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216 |
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217 |
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218 /* Variable for mouse relative processing */ |
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219 int mouse_relative = 0; |
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220 |
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221 /* Check to see if we need to enter or leave mouse relative mode */ |
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222 |
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223 void RISCOS_CheckMouseMode(_THIS) |
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224 { |
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225 /* If the mouse is hidden and input is grabbed, we use relative mode */ |
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226 if ( !(SDL_cursorstate & CURSOR_VISIBLE) && |
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227 (this->input_grab != SDL_GRAB_OFF) ) { |
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228 mouse_relative = 1; |
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229 } else { |
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230 mouse_relative = 0; |
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231 } |
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232 } |
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233 |
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234 |
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235 void RISCOS_PollMouse(_THIS) |
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236 { |
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237 RISCOS_PollMouseHelper(this, 1); |
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238 } |
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239 |
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240 extern int mouseInWindow; |
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241 |
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242 void WIMP_PollMouse(_THIS) |
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243 { |
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244 /* Only poll when mouse is over the window */ |
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245 if (!mouseInWindow) return; |
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246 |
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247 RISCOS_PollMouseHelper(this, 0); |
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248 } |
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249 |
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250 /* Static variables so only changes are reported */ |
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251 static Sint16 last_x = -1, last_y = -1; |
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252 static int last_buttons = 0; |
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253 |
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254 /* Share routine between WIMP and FULLSCREEN for polling mouse and |
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255 passing on events */ |
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256 void RISCOS_PollMouseHelper(_THIS, int fullscreen) |
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257 { |
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258 _kernel_swi_regs regs; |
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259 static int starting = 1; |
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260 |
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261 if (_kernel_swi(OS_Mouse, ®s, ®s) == NULL) |
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262 { |
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263 Sint16 new_x = regs.r[0]; /* Initialy get as OS units */ |
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264 Sint16 new_y = regs.r[1]; |
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265 |
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266 /* Discard mouse events until they let go of the mouse after starting */ |
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267 if (starting && regs.r[2] != 0) |
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268 return; |
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269 else |
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270 starting = 0; |
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271 |
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272 if (new_x != last_x || new_y != last_y || last_buttons != regs.r[2]) |
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273 { |
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274 /* Something changed so generate appropriate events */ |
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275 int topLeftX, topLeftY; /* Top left OS units */ |
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276 int x, y; /* Mouse position in SDL pixels */ |
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277 |
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278 if (fullscreen) |
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279 { |
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280 topLeftX = 0; |
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281 topLeftY = (this->hidden->height << this->hidden->yeig) - 1; |
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282 } else |
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283 { |
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284 int window_state[9]; |
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285 |
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286 /* Get current window state */ |
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287 window_state[0] = this->hidden->window_handle; |
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288 regs.r[1] = (unsigned int)window_state; |
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289 _kernel_swi(Wimp_GetWindowState, ®s, ®s); |
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290 |
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291 topLeftX = window_state[1]; |
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292 topLeftY = window_state[4]; |
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293 } |
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294 |
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295 /* Convert co-ordinates to workspace */ |
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296 x = new_x - topLeftX; |
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297 y = topLeftY - new_y; /* Y goes from top of window/screen */ |
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298 |
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299 /* Convert OS units to pixels */ |
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300 x >>= this->hidden->xeig; |
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301 y >>= this->hidden->yeig; |
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302 |
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303 if (last_x != new_x || last_y != new_y) |
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304 { |
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305 if (mouse_relative) |
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306 { |
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307 int centre_x = SDL_VideoSurface->w/2; |
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308 int centre_y = SDL_VideoSurface->h/2; |
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309 |
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310 if (centre_x != x || centre_y != y) |
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311 { |
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312 if (SDL_VideoSurface) SDL_PrivateMouseMotion(0,1,x - centre_x, y - centre_y); |
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313 last_x = topLeftX + (centre_x << this->hidden->xeig); |
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314 last_y = topLeftY - (centre_y << this->hidden->yeig); |
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315 |
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316 /* Re-centre the mouse pointer, so we still get relative |
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317 movement when the mouse is at the edge of the window |
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318 or screen. |
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319 */ |
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320 { |
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321 unsigned char block[5]; |
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322 |
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323 block[0] = 3; /* OSWORD move pointer sub-reason code */ |
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324 block[1] = last_x & 0xFF; |
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325 block[2] = (last_x >> 8) & 0xFF; |
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326 block[3] = last_y & 0xFF; |
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327 block[4] = (last_y >> 8) & 0xFF; |
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328 |
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329 regs.r[0] = 21; /* OSWORD pointer stuff code */ |
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330 regs.r[1] = (int)block; |
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331 _kernel_swi(OS_Word, ®s, ®s); |
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332 } |
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333 } |
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334 } else |
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335 { |
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336 last_x = new_x; |
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337 last_y = new_y; |
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338 SDL_PrivateMouseMotion(0,0,x,y); |
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339 } |
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340 } |
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341 |
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342 if (last_buttons != regs.r[2]) |
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343 { |
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344 int changed = last_buttons ^ regs.r[2]; |
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345 last_buttons = regs.r[2]; |
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346 if (changed & 4) SDL_PrivateMouseButton((last_buttons & 4) ? SDL_PRESSED : SDL_RELEASED, SDL_BUTTON_LEFT, 0, 0); |
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347 if (changed & 2) SDL_PrivateMouseButton((last_buttons & 2) ? SDL_PRESSED : SDL_RELEASED, SDL_BUTTON_MIDDLE, 0, 0); |
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348 if (changed & 1) SDL_PrivateMouseButton((last_buttons & 1) ? SDL_PRESSED : SDL_RELEASED, SDL_BUTTON_RIGHT, 0, 0); |
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349 } |
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350 } |
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351 } |
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352 } |
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353 |
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354 void RISCOS_PollKeyboard() |
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355 { |
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356 int which_key = ROKEY_LEFT_SHIFT; |
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357 int j; |
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358 int min_key, max_key; |
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359 SDL_keysym key; |
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360 |
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361 /* Scan the keyboard to see what is pressed */ |
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362 while (which_key <= ROKEY_LAST_KEY) |
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363 { |
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364 which_key = (_kernel_osbyte(121, which_key, 0) & 0xFF); |
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365 if (which_key != ROKEY_NONE) |
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366 { |
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367 switch(which_key) |
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368 { |
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369 /* Skip over mouse keys */ |
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370 case ROKEY_LEFT_MOUSE: |
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371 case ROKEY_CENTRE_MOUSE: |
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372 case ROKEY_RIGHT_MOUSE: |
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373 which_key = ROKEY_RIGHT_MOUSE; |
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374 break; |
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375 |
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376 /* Ignore keys that cause 2 internal number to be generated */ |
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377 case 71: case 24: case 87: case 40: |
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378 break; |
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379 |
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380 /* Ignore break as it can be latched on */ |
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381 case 44: |
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382 break; |
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383 |
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384 default: |
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385 RO_pressed[which_key] += 2; |
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386 break; |
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387 } |
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388 which_key++; |
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389 } |
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390 } |
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391 |
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392 /* Generate key released messages */ |
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393 min_key = ROKEY_LAST_KEY+1; |
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394 max_key = ROKEY_LEFT_SHIFT; |
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395 |
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396 for (j = ROKEY_LEFT_SHIFT; j <= ROKEY_LAST_KEY; j++) |
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397 { |
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398 if (RO_pressed[j]) |
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399 { |
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400 if (RO_pressed[j] == 1) |
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401 { |
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402 RO_pressed[j] = 0; |
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403 SDL_PrivateKeyboard(SDL_RELEASED, TranslateKey(j,&key,0)); |
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404 } else |
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405 { |
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406 if (j < min_key) min_key = j; |
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407 if (j > max_key) max_key = j; |
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408 } |
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409 } |
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410 } |
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411 |
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412 /* Generate key pressed messages */ |
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413 for (j = min_key; j <= max_key; j++) |
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414 { |
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415 if (RO_pressed[j]) |
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416 { |
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417 if (RO_pressed[j] == 2) |
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418 { |
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419 SDL_PrivateKeyboard(SDL_PRESSED,TranslateKey(j,&key,1)); |
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420 } |
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421 RO_pressed[j] = 1; |
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422 } |
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423 } |
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424 } |
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425 |
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426 static SDL_keysym *TranslateKey(int intkey, SDL_keysym *keysym, int pressed) |
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427 { |
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428 /* Set the keysym information */ |
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429 keysym->scancode = (unsigned char) intkey; |
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430 keysym->sym = RO_keymap[intkey]; |
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431 keysym->mod = KMOD_NONE; |
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432 keysym->unicode = 0; |
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433 if ( pressed && SDL_TranslateUNICODE ) |
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434 { |
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435 int state; |
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436 int ch; |
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437 |
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438 state = (_kernel_osbyte(202, 0, 255) & 0xFF); |
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439 |
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440 /*TODO: Take into account other keyboard layouts */ |
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441 |
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442 ch = keysym->sym; /* This should handle most unshifted keys */ |
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443 |
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444 if (intkey < 9 || ch == SDLK_UNKNOWN) |
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445 { |
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446 ch = 0; |
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447 |
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448 } else if (state & 64) /* Control on */ |
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449 { |
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450 ch = ch & 31; |
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451 |
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452 } else |
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453 { |
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454 int topOfKey = 0; |
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455 if (state & 8) /* Shift on */ |
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456 { |
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457 topOfKey = 1; |
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458 } |
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459 |
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460 if ((state & 16) == 0) /* Caps lock is on */ |
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461 { |
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462 if (ch >= SDLK_a && ch <= SDLK_z) |
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463 { |
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464 if ((state & 128) == 0) /* Shift Enable off */ |
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465 { |
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466 /* All letter become upper case */ |
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467 topOfKey = 1; |
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468 } else |
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469 { |
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470 /* Shift+Letters gives lower case */ |
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471 topOfKey = 1 - topOfKey; |
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472 } |
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473 } |
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474 } |
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475 |
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476 if (topOfKey) |
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477 { |
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478 /* Key produced with shift held down */ |
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479 |
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480 /* Letters just give upper case version */ |
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481 if (ch >= SDLK_a && ch <= SDLK_z) ch = toupper(ch); |
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482 else |
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483 { |
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484 switch(ch) |
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485 { |
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486 case SDLK_HASH: ch = '~'; break; |
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487 case SDLK_QUOTE: ch = '@'; break; |
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488 case SDLK_COMMA: ch = '<'; break; |
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489 case SDLK_MINUS: ch = '_'; break; |
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490 case SDLK_PERIOD: ch = '>'; break; |
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491 case SDLK_SLASH: ch = '?'; break; |
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492 |
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493 case SDLK_0: ch = ')'; break; |
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494 case SDLK_1: ch = '!'; break; |
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495 case SDLK_2: ch = '"'; break; |
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496 case SDLK_3: ch = '£'; break; |
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497 case SDLK_4: ch = '$'; break; |
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498 case SDLK_5: ch = '%'; break; |
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499 case SDLK_6: ch = '^'; break; |
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500 case SDLK_7: ch = '&'; break; |
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501 case SDLK_8: ch = '*'; break; |
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502 case SDLK_9: ch = '('; break; |
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503 |
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504 case SDLK_SEMICOLON: ch = ':'; break; |
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505 case SDLK_EQUALS: ch = '+'; break; |
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506 case SDLK_LEFTBRACKET: ch = '{'; break; |
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507 case SDLK_BACKSLASH: ch = '|'; break; |
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508 case SDLK_RIGHTBRACKET: ch = '}'; break; |
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509 case SDLK_BACKQUOTE: ch = '¬'; break; |
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510 |
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511 default: |
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512 ch = 0; /* Map to zero character if we don't understand it */ |
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513 break; |
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514 } |
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515 } |
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516 |
|
517 } else if (ch > 126) |
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518 { |
|
519 /* SDL key code < 126 map directly onto their Unicode equivalents */ |
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520 /* Keypad 0 to 9 maps to numeric equivalent */ |
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521 if (ch >= SDLK_KP0 && ch <= SDLK_KP9) ch = ch - SDLK_KP0 + '0'; |
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522 else |
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523 { |
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524 /* Following switch maps other keys that produce an Ascii value */ |
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525 switch(ch) |
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526 { |
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527 case SDLK_KP_PERIOD: ch = '.'; break; |
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528 case SDLK_KP_DIVIDE: ch = '/'; break; |
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529 case SDLK_KP_MULTIPLY: ch = '*'; break; |
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530 case SDLK_KP_MINUS: ch = '-'; break; |
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531 case SDLK_KP_PLUS: ch = '+'; break; |
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532 case SDLK_KP_EQUALS: ch = '='; break; |
|
533 |
|
534 default: |
|
535 /* If we don't know what it is set the Unicode to 0 */ |
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536 ch = 0; |
|
537 break; |
|
538 } |
|
539 } |
|
540 } |
|
541 } |
|
542 |
|
543 keysym->unicode = ch; |
|
544 } |
|
545 return(keysym); |
|
546 } |
|
547 |
|
548 /* end of SDL_riscosevents.c ... */ |
|
549 |