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annotate src/joystick/nds/SDL_sysjoystick.c @ 4170:092c0bc69155 SDL-1.2

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Fixed bug #618 Description From Tim Angus 2008-08-30 12:23:56 (-) [reply] As we all know SDL 1.2 doesn't handle dead keys well since one key press potentially equals two (or more) characters. For example, on many layouts, keying <backquote>,<space> results in <no character>,<backquote><space>. Since the unicode member of the SDL_keysym struct only has room for one character, only one can be returned. On Linux, the first character is returned. On Windows however, unless the exact number of characters generated by the keypress is 1, nothing is returned. The following patch addresses this inconsistency. Updated patch which includes a further fix to the handling of the numpad when numlock is on. This further fix is courtesy Amanieu d'Antras.
author Sam Lantinga <slouken@libsdl.org>
date Mon, 13 Apr 2009 08:42:09 +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 /* This is the system specific header for the SDL joystick API */
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25 #include <nds.h>
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26 //#include <nds/registers_alt.h>
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27
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28 #include "SDL_error.h"
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29 #include "SDL_events.h"
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30 #include "SDL_joystick.h"
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31 #include "../SDL_sysjoystick.h"
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32 #include "../SDL_joystick_c.h"
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33
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34 #include "../../video/nds/SDL_ndsevents_c.h"
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35
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36 /* Function to scan the system for joysticks.
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37 * This function should set SDL_numjoysticks to the number of available
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38 * joysticks. Joystick 0 should be the system default joystick.
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39 * It should return 0, or -1 on an unrecoverable fatal error.
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40 */
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41 int SDL_SYS_JoystickInit(void)
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42 {
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43 SDL_numjoysticks = 1;
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44 //keysInit();
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45
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46 return(1);
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47 }
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48
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49 /* Function to get the device-dependent name of a joystick */
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50 const char *SDL_SYS_JoystickName(int index)
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51 {
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52 if(!index)
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53 return "NDS builtin joypad";
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54 SDL_SetError("No joystick available with that index");
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55 return (NULL);
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56 }
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57
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58 /* Function to open a joystick for use.
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59 The joystick to open is specified by the index field of the joystick.
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60 This should fill the nbuttons and naxes fields of the joystick structure.
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61 It returns 0, or -1 if there is an error.
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62 */
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63 int SDL_SYS_JoystickOpen(SDL_Joystick *joystick)
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64 {
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65 joystick->nbuttons=8;
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66 joystick->nhats=0;
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67 joystick->nballs=0;
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68 joystick->naxes=2;
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69 return 0;
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70 }
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71
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72
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73 /* Function to update the state of a joystick - called as a device poll.
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74 * This function shouldn't update the joystick structure directly,
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75 * but instead should call SDL_PrivateJoystick*() to deliver events
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76 * and update joystick device state.
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77 */
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78
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79 int prevbutton=0;
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80 int prevkey=0;
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81
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82 int dc=0;int ldc=0;
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83 u32 keysd,keysu=0;
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84 void SDL_SYS_JoystickUpdate(SDL_Joystick *joystick)
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85 {
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86 //dc=keysd;
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87 //if (dc)
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88 //{
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89 //fprintf(stderr,"heartbeat= %d\n",REG_VCOUNT);
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90 //swiWaitForVBlank();
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91 //scanKeys();
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92 //keysd = keysDown();
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93 //keysu = keysUp();
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94 //ldc=keysd;
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95
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96 //}
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97 /*if (prevkey && prevbutton)
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98 {
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99 scanKeys();
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100 }
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101 */
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102
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103 //scanKeys();
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104 keysd = keysDown();
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105 keysu = keysUp();
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106
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107
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108 short ax=0,v=0,h=0;
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109 if((keysd&KEY_UP)) {ax=1;v=-10;SDL_PrivateJoystickAxis(joystick,ax,v);prevkey=KEY_UP;}//fprintf(stderr,"KEY_UP\n");}
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110 if((keysd&KEY_DOWN)) {ax=1;v=10;SDL_PrivateJoystickAxis(joystick,ax,v);prevkey=KEY_DOWN;}//fprintf(stderr,"KEY_DOWN\n");}
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111 if((keysd&KEY_LEFT)) {ax=0;h=-10;SDL_PrivateJoystickAxis(joystick,ax,h);prevkey=KEY_LEFT;}//fprintf(stderr,"KEY_LEFT\n");}
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112 if((keysd&KEY_RIGHT)) {ax=0;h=10;SDL_PrivateJoystickAxis(joystick,ax,h);prevkey=KEY_RIGHT;}//fprintf(stderr,"KEY_RIGHT\n");}
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113
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114 if((keysu&KEY_UP)) {ax=1;v=0;SDL_PrivateJoystickAxis(joystick,ax,v);prevkey=0;}//fprintf(stderr,"KEY_UP\n");}
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115 if((keysu&KEY_DOWN)) {ax=1;v=0;SDL_PrivateJoystickAxis(joystick,ax,v);prevkey=0;}//fprintf(stderr,"KEY_DOWN\n");}
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116 if((keysu&KEY_LEFT)) {ax=0;h=0;SDL_PrivateJoystickAxis(joystick,ax,h);prevkey=0;}//fprintf(stderr,"KEY_LEFT\n");}
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117 if((keysu&KEY_RIGHT)) {ax=0;h=0;SDL_PrivateJoystickAxis(joystick,ax,h);prevkey=0;}//fprintf(stderr,"KEY_RIGHT\n");}
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118
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119 if((keysd&KEY_A)) {SDL_PrivateJoystickButton(joystick,0,SDL_PRESSED);prevbutton=KEY_A;}
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120 if((keysd&KEY_B)) {SDL_PrivateJoystickButton(joystick,1,SDL_PRESSED);prevbutton=KEY_B;}
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121 if((keysd&KEY_X)) {SDL_PrivateJoystickButton(joystick,2,SDL_PRESSED);prevbutton=KEY_X;}
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122 if((keysd&KEY_Y)) {SDL_PrivateJoystickButton(joystick,3,SDL_PRESSED);prevbutton=KEY_Y;}
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123 if((keysd&KEY_SELECT)) {SDL_PrivateJoystickButton(joystick,6,SDL_PRESSED);prevbutton=KEY_SELECT;}
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124 if((keysd&KEY_START)) {SDL_PrivateJoystickButton(joystick,7,SDL_PRESSED);prevbutton=KEY_START;}
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125 if((keysd&KEY_L)) {SDL_PrivateJoystickButton(joystick,4,SDL_PRESSED);prevbutton=KEY_L;}
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126 if((keysd&KEY_R)) {SDL_PrivateJoystickButton(joystick,5,SDL_PRESSED);prevbutton=KEY_R;}
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127
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128 if((keysu&KEY_A)) {SDL_PrivateJoystickButton(joystick,0,SDL_RELEASED);prevbutton=0;}
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129 if((keysu&KEY_B)) {SDL_PrivateJoystickButton(joystick,1,SDL_RELEASED);prevbutton=0;}
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130 if((keysu&KEY_X)) {SDL_PrivateJoystickButton(joystick,2,SDL_RELEASED);prevbutton=0;}
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131 if((keysu&KEY_Y)) {SDL_PrivateJoystickButton(joystick,3,SDL_RELEASED);prevbutton=0;}
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132 if((keysu&KEY_SELECT)) {SDL_PrivateJoystickButton(joystick,6,SDL_RELEASED);prevbutton=0;}
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133 if((keysu&KEY_START)) {SDL_PrivateJoystickButton(joystick,7,SDL_RELEASED);prevbutton=0;}
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134 if((keysu&KEY_L)) {SDL_PrivateJoystickButton(joystick,4,SDL_RELEASED);prevbutton=0;}
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135 if((keysu&KEY_R)) {SDL_PrivateJoystickButton(joystick,5,SDL_RELEASED);prevbutton=0;}
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136
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137
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138
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139 }
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140
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141 /* Function to close a joystick after use */
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142 void SDL_SYS_JoystickClose(SDL_Joystick *joystick)
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143 {
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144 }
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145
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146 /* Function to perform any system-specific joystick related cleanup */
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147 void SDL_SYS_JoystickQuit(void)
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148 {
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149 }
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150