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annotate src/video/dc/SDL_dcevents.c @ 4269:60db3d01cb3a SDL-1.2

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I just tested DGA mouse motion with X.org 1.6.0 and it's working fine, with evdev and the G5 mouse. It's not creating a ton of events here.
author Sam Lantinga <slouken@libsdl.org>
date Wed, 30 Sep 2009 04:49:57 +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 #include "SDL.h"
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25 #include "../../events/SDL_sysevents.h"
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26 #include "../../events/SDL_events_c.h"
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27 #include "SDL_dcvideo.h"
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28 #include "SDL_dcevents_c.h"
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29
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30 #include <dc/maple.h>
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31 #include <dc/maple/mouse.h>
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32 #include <dc/maple/keyboard.h>
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33
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34 const static unsigned short sdl_key[]= {
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35 /*0*/ 0, 0, 0, 0, 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i',
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36 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't',
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37 'u', 'v', 'w', 'x', 'y', 'z',
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38 /*1e*/ '1', '2', '3', '4', '5', '6', '7', '8', '9', '0',
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39 /*28*/ SDLK_RETURN, SDLK_ESCAPE, SDLK_BACKSPACE, SDLK_TAB, SDLK_SPACE, SDLK_MINUS, SDLK_PLUS, SDLK_LEFTBRACKET,
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40 SDLK_RIGHTBRACKET, SDLK_BACKSLASH , 0, SDLK_SEMICOLON, SDLK_QUOTE,
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41 /*35*/ '~', SDLK_COMMA, SDLK_PERIOD, SDLK_SLASH, SDLK_CAPSLOCK,
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42 SDLK_F1, SDLK_F2, SDLK_F3, SDLK_F4, SDLK_F5, SDLK_F6, SDLK_F7, SDLK_F8, SDLK_F9, SDLK_F10, SDLK_F11, SDLK_F12,
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43 /*46*/ SDLK_PRINT, SDLK_SCROLLOCK, SDLK_PAUSE, SDLK_INSERT, SDLK_HOME, SDLK_PAGEUP, SDLK_DELETE, SDLK_END, SDLK_PAGEDOWN, SDLK_RIGHT, SDLK_LEFT, SDLK_DOWN, SDLK_UP,
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44 /*53*/ SDLK_NUMLOCK, SDLK_KP_DIVIDE, SDLK_KP_MULTIPLY, SDLK_KP_MINUS, SDLK_KP_PLUS, SDLK_KP_ENTER,
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45 SDLK_KP1, SDLK_KP2, SDLK_KP3, SDLK_KP4, SDLK_KP5, SDLK_KP6,
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46 /*5f*/ SDLK_KP7, SDLK_KP8, SDLK_KP9, SDLK_KP0, SDLK_KP_PERIOD, 0 /* S3 */
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47 };
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48
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49 const static unsigned short sdl_shift[] = {
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50 SDLK_LCTRL,SDLK_LSHIFT,SDLK_LALT,0 /* S1 */,
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51 SDLK_RCTRL,SDLK_RSHIFT,SDLK_RALT,0 /* S2 */,
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52 };
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53
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54 #define MOUSE_WHEELUP (1<<4)
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55 #define MOUSE_WHEELDOWN (1<<5)
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56
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57 static void mouse_update(void)
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58 {
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59 const static char sdl_mousebtn[] = {
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60 MOUSE_LEFTBUTTON,
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61 MOUSE_RIGHTBUTTON,
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62 MOUSE_SIDEBUTTON,
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63 MOUSE_WHEELUP,
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64 MOUSE_WHEELDOWN
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65 };
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66
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67 uint8 addr;
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68 mouse_cond_t cond;
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69
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70 static int prev_buttons;
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71 int buttons,changed;
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72 int i;
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73
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74 if ((addr = maple_first_mouse())==0 || mouse_get_cond(addr, &cond)<0) return;
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75
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76 buttons = cond.buttons^0xff;
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77 if (cond.dz<0) buttons|=MOUSE_WHEELUP;
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78 if (cond.dz>0) buttons|=MOUSE_WHEELDOWN;
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79
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80 if (cond.dx||cond.dy) SDL_PrivateMouseMotion(0,1,cond.dx,cond.dy);
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81
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82 changed = buttons^prev_buttons;
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83 for(i=0;i<sizeof(sdl_mousebtn);i++) {
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84 if (changed & sdl_mousebtn[i]) {
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85 SDL_PrivateMouseButton((buttons & sdl_mousebtn[i])?SDL_PRESSED:SDL_RELEASED,i,0,0);
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86 }
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87 }
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88 prev_buttons = buttons;
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89 }
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90
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91 static void keyboard_update(void)
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92 {
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93 static kbd_state_t old_state;
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94 static uint8 old_addr;
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95
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96 kbd_state_t *state;
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97 uint8 addr;
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98 int port,unit;
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99
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100 int shiftkeys;
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101 SDL_keysym keysym;
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102
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103 int i;
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104
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105 addr = maple_first_kb();
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106
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107 if (addr==0) return;
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108
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109 if (addr!=old_addr) {
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110 old_addr = addr;
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111 SDL_memset(&old_state,0,sizeof(old_state));
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112 }
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113
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114 maple_raddr(addr,&port,&unit);
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115
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116 state = maple_dev_state(port,unit);
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117 if (!state) return;
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118
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119 shiftkeys = state->shift_keys ^ old_state.shift_keys;
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120 for(i=0;i<sizeof(sdl_shift);i++) {
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121 if ((shiftkeys>>i)&1) {
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122 keysym.sym = sdl_shift[i];
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123 SDL_PrivateKeyboard(((state->shift_keys>>i)&1)?SDL_PRESSED:SDL_RELEASED,&keysym);
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124 }
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125 }
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126
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127 for(i=0;i<sizeof(sdl_key);i++) {
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128 if (state->matrix[i]!=old_state.matrix[i]) {
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129 int key = sdl_key[i];
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130 if (key) {
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131 keysym.sym = key;
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132 SDL_PrivateKeyboard(state->matrix[i]?SDL_PRESSED:SDL_RELEASED,&keysym);
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133 }
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134 }
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135 }
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136
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137 old_state = *state;
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138 }
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139
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140 void DC_PumpEvents(_THIS)
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141 {
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142 keyboard_update();
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143 mouse_update();
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144 }
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145
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146 void DC_InitOSKeymap(_THIS)
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147 {
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148 /* do nothing. */
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149 }
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150
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151 /* end of SDL_dcevents.c ... */
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152