annotate src/joystick/nds/SDL_sysjoystick.c @ 5166:d72793305335

Making the API simpler, moved the surface drawing functions to the software renderer.
author Sam Lantinga <slouken@libsdl.org>
date Thu, 03 Feb 2011 02:45:29 -0800
parents bb2e32f5a556
children b530ef003506
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2010 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
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23 #include "SDL_config.h"
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24
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25 #ifdef SDL_JOYSTICK_NDS
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26
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27 /* This is the system specific header for the SDL joystick API */
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28 #include <nds.h>
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29 #include <stdio.h> /* For the definition of NULL */
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30
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31 #include "SDL_error.h"
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32 #include "SDL_events.h"
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33 #include "SDL_joystick.h"
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34 #include "SDL_sysjoystick.h"
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35 #include "SDL_joystick_c.h"
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36
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37 #include "../../video/nds/SDL_ndsevents_c.h"
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38
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39 /* Function to scan the system for joysticks.
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40 * This function should set SDL_numjoysticks to the number of available
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41 * joysticks. Joystick 0 should be the system default joystick.
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42 * It should return 0, or -1 on an unrecoverable fatal error.
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43 */
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44 int
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45 SDL_SYS_JoystickInit(void)
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46 {
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47 SDL_numjoysticks = 1;
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48 return (1);
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49 }
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50
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51 /* Function to get the device-dependent name of a joystick */
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52 const char *
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53 SDL_SYS_JoystickName(int index)
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54 {
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55 if (!index)
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56 return "NDS builtin joypad";
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57 SDL_SetError("No joystick available with that index");
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58 return (NULL);
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59 }
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60
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61 /* Function to open a joystick for use.
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62 The joystick to open is specified by the index field of the joystick.
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63 This should fill the nbuttons and naxes fields of the joystick structure.
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64 It returns 0, or -1 if there is an error.
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65 */
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66 int
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67 SDL_SYS_JoystickOpen(SDL_Joystick * joystick)
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68 {
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69 joystick->nbuttons = 8;
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70 joystick->nhats = 0;
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71 joystick->nballs = 0;
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72 joystick->naxes = 2;
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73 return 0;
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74 }
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75
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76
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77 /* Function to update the state of a joystick - called as a device poll.
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78 * This function shouldn't update the joystick structure directly,
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79 * but instead should call SDL_PrivateJoystick*() to deliver events
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80 * and update joystick device state.
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81 */
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82 void
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83 SDL_SYS_JoystickUpdate(SDL_Joystick * joystick)
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84 {
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85 u32 keysd, keysu;
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86 int magnitude = 16384;
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87
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88 /*scanKeys(); - this is done in PumpEvents, because touch uses it too */
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89 keysd = keysDown();
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90 keysu = keysUp();
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91
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92 if ((keysd & KEY_UP)) {
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93 SDL_PrivateJoystickAxis(joystick, 1, -magnitude);
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94 }
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95 if ((keysd & KEY_DOWN)) {
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96 SDL_PrivateJoystickAxis(joystick, 1, magnitude);
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97 }
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98 if ((keysd & KEY_LEFT)) {
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99 SDL_PrivateJoystickAxis(joystick, 0, -magnitude);
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100 }
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101 if ((keysd & KEY_RIGHT)) {
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102 SDL_PrivateJoystickAxis(joystick, 0, magnitude);
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103 }
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104 if ((keysu & (KEY_UP | KEY_DOWN))) {
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105 SDL_PrivateJoystickAxis(joystick, 1, 0);
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106 }
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107 if ((keysu & (KEY_LEFT | KEY_RIGHT))) {
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108 SDL_PrivateJoystickAxis(joystick, 0, 0);
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109 }
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110 if ((keysd & KEY_A)) {
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111 SDL_PrivateJoystickButton(joystick, 0, SDL_PRESSED);
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112 }
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113 if ((keysd & KEY_B)) {
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114 SDL_PrivateJoystickButton(joystick, 1, SDL_PRESSED);
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115 }
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116 if ((keysd & KEY_X)) {
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117 SDL_PrivateJoystickButton(joystick, 2, SDL_PRESSED);
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118 }
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119 if ((keysd & KEY_Y)) {
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120 SDL_PrivateJoystickButton(joystick, 3, SDL_PRESSED);
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121 }
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122 if ((keysd & KEY_L)) {
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123 SDL_PrivateJoystickButton(joystick, 4, SDL_PRESSED);
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124 }
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125 if ((keysd & KEY_R)) {
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126 SDL_PrivateJoystickButton(joystick, 5, SDL_PRESSED);
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127 }
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128 if ((keysd & KEY_SELECT)) {
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129 SDL_PrivateJoystickButton(joystick, 6, SDL_PRESSED);
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130 }
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131 if ((keysd & KEY_START)) {
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132 SDL_PrivateJoystickButton(joystick, 7, SDL_PRESSED);
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133 }
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134 if ((keysu & KEY_A)) {
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135 SDL_PrivateJoystickButton(joystick, 0, SDL_RELEASED);
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136 }
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137 if ((keysu & KEY_B)) {
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138 SDL_PrivateJoystickButton(joystick, 1, SDL_RELEASED);
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139 }
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140 if ((keysu & KEY_X)) {
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141 SDL_PrivateJoystickButton(joystick, 2, SDL_RELEASED);
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142 }
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143 if ((keysu & KEY_Y)) {
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144 SDL_PrivateJoystickButton(joystick, 3, SDL_RELEASED);
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145 }
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146 if ((keysu & KEY_L)) {
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147 SDL_PrivateJoystickButton(joystick, 4, SDL_RELEASED);
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148 }
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149 if ((keysu & KEY_R)) {
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150 SDL_PrivateJoystickButton(joystick, 5, SDL_RELEASED);
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151 }
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152 if ((keysu & KEY_SELECT)) {
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153 SDL_PrivateJoystickButton(joystick, 6, SDL_RELEASED);
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154 }
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155 if ((keysu & KEY_START)) {
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156 SDL_PrivateJoystickButton(joystick, 7, SDL_RELEASED);
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157 }
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158 }
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159
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160 /* Function to close a joystick after use */
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161 void
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162 SDL_SYS_JoystickClose(SDL_Joystick * joystick)
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163 {
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164 }
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165
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166 /* Function to perform any system-specific joystick related cleanup */
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167 void
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168 SDL_SYS_JoystickQuit(void)
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169 {
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170 }
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171
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172 #endif /* SDL_JOYSTICK_NDS */