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annotate src/video/ataricommon/SDL_ikbdevents.c @ 4387:72d3b4fd918b SDL-1.2

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author Sam Lantinga <slouken@libsdl.org>
date Thu, 03 Dec 2009 04:20:46 +0000
parents a1b03ba2fcd0
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 hardware IKBD
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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
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33 #include "../../events/SDL_sysevents.h"
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34 #include "../../events/SDL_events_c.h"
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35
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36 #include "SDL_atarikeys.h"
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37 #include "SDL_atarievents_c.h"
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38 #include "SDL_ikbdinterrupt_s.h"
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39
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40 #define KEY_PRESSED 0xff
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41 #define KEY_UNDEFINED 0x80
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42 #define KEY_RELEASED 0x00
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43
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44 static Uint16 atari_prevmouseb; /* save state of mouse buttons */
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45
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46 void AtariIkbd_InitOSKeymap(_THIS)
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47 {
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48 int i;
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49
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50 SDL_memset(SDL_AtariIkbd_keyboard, KEY_UNDEFINED, sizeof(SDL_AtariIkbd_keyboard));
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51
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52 /* Now install our handler */
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53 SDL_AtariIkbd_mouseb = SDL_AtariIkbd_mousex = SDL_AtariIkbd_mousey = 0;
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54 atari_prevmouseb = 0;
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55
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56 Supexec(SDL_AtariIkbdInstall);
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57 }
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58
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59 static int atari_GetButton(int button)
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60 {
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61 switch(button)
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62 {
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63 case 0:
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64 return SDL_BUTTON_RIGHT;
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65 break;
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66 case 1:
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67 default:
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68 return SDL_BUTTON_LEFT;
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69 break;
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70 }
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71 }
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72
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73 void AtariIkbd_PumpEvents(_THIS)
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74 {
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75 int i, specialkeys;
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76 SDL_keysym keysym;
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77
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78 /*--- Send keyboard events ---*/
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79
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80 for (i=0; i<ATARIBIOS_MAXKEYS; i++) {
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81 /* Key pressed ? */
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82 if (SDL_AtariIkbd_keyboard[i]==KEY_PRESSED) {
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83 SDL_PrivateKeyboard(SDL_PRESSED,
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84 SDL_Atari_TranslateKey(i, &keysym, SDL_TRUE));
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85 SDL_AtariIkbd_keyboard[i]=KEY_UNDEFINED;
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86 }
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87
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88 /* Key released ? */
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89 if (SDL_AtariIkbd_keyboard[i]==KEY_RELEASED) {
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90 SDL_PrivateKeyboard(SDL_RELEASED,
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91 SDL_Atari_TranslateKey(i, &keysym, SDL_FALSE));
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92 SDL_AtariIkbd_keyboard[i]=KEY_UNDEFINED;
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93 }
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94 }
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95
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96 /*--- Send mouse events ---*/
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97
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98 /* Mouse motion ? */
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99 if (SDL_AtariIkbd_mousex || SDL_AtariIkbd_mousey) {
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100 SDL_PrivateMouseMotion(0, 1, SDL_AtariIkbd_mousex, SDL_AtariIkbd_mousey);
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101 SDL_AtariIkbd_mousex = SDL_AtariIkbd_mousey = 0;
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102 }
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103
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104 /* Mouse button ? */
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105 if (SDL_AtariIkbd_mouseb != atari_prevmouseb) {
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106 for (i=0;i<2;i++) {
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107 int curbutton, prevbutton;
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108
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109 curbutton = SDL_AtariIkbd_mouseb & (1<<i);
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110 prevbutton = atari_prevmouseb & (1<<i);
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111
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112 if (curbutton && !prevbutton) {
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113 SDL_PrivateMouseButton(SDL_PRESSED, atari_GetButton(i), 0, 0);
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114 }
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115 if (!curbutton && prevbutton) {
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116 SDL_PrivateMouseButton(SDL_RELEASED, atari_GetButton(i), 0, 0);
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117 }
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118 }
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119 atari_prevmouseb = SDL_AtariIkbd_mouseb;
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120 }
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121 }
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122
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123 void AtariIkbd_ShutdownEvents(void)
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124 {
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125 Supexec(SDL_AtariIkbdUninstall);
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126 }