Mercurial > sdl-ios-xcode
annotate src/video/ataricommon/SDL_xbiosevents.c @ 1420:2405517b5eab
Added preliminary support for MiNT /dev/mouse driver (disabled atm)
author | Patrice Mandin <patmandin@gmail.com> |
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date | Thu, 23 Feb 2006 21:51:10 +0000 |
parents | d910939febfa |
children | 782fd950bd46 c121d94672cb be01e0b82dca |
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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 * XBIOS mouse & joystick vectors |
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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 #include <mint/osbind.h> |
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31 |
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32 #include "../../events/SDL_events_c.h" |
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33 #include "SDL_xbiosevents_c.h" |
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34 #include "SDL_xbiosinterrupt_s.h" |
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35 |
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36 /* Variables */ |
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37 |
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38 int SDL_AtariXbios_enabled=0; |
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39 |
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40 /* Local variables */ |
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41 |
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42 static _KBDVECS *kbdvecs; /* Pointer to access system vectors */ |
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43 static Uint16 atari_prevmouseb; /* buttons */ |
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44 |
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45 /* Functions */ |
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46 |
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47 void SDL_AtariXbios_InstallVectors(int vectors_mask) |
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48 { |
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49 void *oldpile; |
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50 |
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51 /* Clear variables */ |
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52 SDL_AtariXbios_mouseb = |
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53 SDL_AtariXbios_mousex = |
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54 SDL_AtariXbios_mousey = |
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55 SDL_AtariXbios_joystick = |
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56 atari_prevmouseb = 0; |
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57 |
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58 if (vectors_mask==0) { |
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59 SDL_AtariXbios_enabled=0; |
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60 return; |
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61 } |
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62 |
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63 /* Read IKBD vectors base */ |
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64 kbdvecs=Kbdvbase(); |
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65 |
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66 /* Go to supervisor mode */ |
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67 oldpile=(void *)Super(0); |
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68 |
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69 /* Install our vectors */ |
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70 SDL_AtariXbios_Install( |
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71 kbdvecs, |
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72 (vectors_mask & ATARI_XBIOS_MOUSEEVENTS) ? SDL_AtariXbios_MouseVector : NULL, |
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73 (vectors_mask & ATARI_XBIOS_JOYSTICKEVENTS) ? SDL_AtariXbios_JoystickVector : NULL |
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74 ); |
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75 |
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76 /* Back to user mode */ |
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77 Super(oldpile); |
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78 |
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79 SDL_AtariXbios_enabled=1; |
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80 } |
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81 |
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82 void SDL_AtariXbios_RestoreVectors(void) |
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83 { |
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84 void *oldpile; |
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85 |
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86 if (SDL_AtariXbios_enabled==0) { |
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87 return; |
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88 } |
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89 |
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90 /* Read IKBD vectors base */ |
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91 kbdvecs=Kbdvbase(); |
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92 |
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93 /* Go to supervisor mode */ |
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94 oldpile=(void *)Super(NULL); |
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95 |
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96 /* Reinstall system vector */ |
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97 SDL_AtariXbios_Restore(kbdvecs); |
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98 |
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99 /* Back to user mode */ |
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100 Super(oldpile); |
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101 } |
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102 |
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103 static int atari_GetButton(int button) |
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104 { |
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105 switch(button) |
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106 { |
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107 case 0: |
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108 return SDL_BUTTON_RIGHT; |
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109 break; |
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110 case 1: |
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111 default: |
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112 return SDL_BUTTON_LEFT; |
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113 break; |
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114 } |
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115 } |
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116 |
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117 void SDL_AtariXbios_PostMouseEvents(_THIS, SDL_bool buttonEvents) |
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118 { |
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119 if (SDL_AtariXbios_enabled==0) { |
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120 return; |
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121 } |
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122 |
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123 /* Mouse motion ? */ |
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124 if (SDL_AtariXbios_mousex || SDL_AtariXbios_mousey) { |
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125 SDL_PrivateMouseMotion(0, 1, SDL_AtariXbios_mousex, SDL_AtariXbios_mousey); |
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126 SDL_AtariXbios_mousex = SDL_AtariXbios_mousey = 0; |
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127 } |
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128 |
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129 /* Mouse button ? */ |
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130 if (buttonEvents && (SDL_AtariXbios_mouseb != atari_prevmouseb)) { |
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131 int i; |
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132 |
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133 for (i=0;i<2;i++) { |
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134 int curbutton, prevbutton; |
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135 |
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136 curbutton = SDL_AtariXbios_mouseb & (1<<i); |
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137 prevbutton = atari_prevmouseb & (1<<i); |
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138 |
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139 if (curbutton && !prevbutton) { |
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140 SDL_PrivateMouseButton(SDL_PRESSED, atari_GetButton(i), 0, 0); |
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141 } |
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142 if (!curbutton && prevbutton) { |
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143 SDL_PrivateMouseButton(SDL_RELEASED, atari_GetButton(i), 0, 0); |
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144 } |
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145 } |
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146 atari_prevmouseb = SDL_AtariXbios_mouseb; |
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147 } |
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148 } |