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annotate src/joystick/SDL_joystick.c @ 1716:6ab5e712e642 SDL-1.3

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The screen/shadow surface flags are no longer needed
author Sam Lantinga <slouken@libsdl.org>
date Mon, 26 Jun 2006 20:32:54 +0000
parents 4da1ee79c9af
children 5daa04d862f1
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 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 /* This is the joystick API for Simple DirectMedia Layer */
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25
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26 #include "SDL_events.h"
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27 #include "SDL_sysjoystick.h"
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28 #include "SDL_joystick_c.h"
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29 #if !SDL_EVENTS_DISABLED
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30 #include "../events/SDL_events_c.h"
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31 #endif
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32
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33 /* This is used for Quake III Arena */
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34 #if SDL_EVENTS_DISABLED
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35 #define SDL_Lock_EventThread()
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36 #define SDL_Unlock_EventThread()
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37 #endif
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38
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39 Uint8 SDL_numjoysticks = 0;
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40 SDL_Joystick **SDL_joysticks = NULL;
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41 static SDL_Joystick *default_joystick = NULL;
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42
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43 int
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44 SDL_JoystickInit(void)
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45 {
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46 int arraylen;
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47 int status;
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48
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49 SDL_numjoysticks = 0;
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50 status = SDL_SYS_JoystickInit();
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51 if (status >= 0) {
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52 arraylen = (status + 1) * sizeof(*SDL_joysticks);
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53 SDL_joysticks = (SDL_Joystick **) SDL_malloc(arraylen);
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54 if (SDL_joysticks == NULL) {
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55 SDL_numjoysticks = 0;
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56 } else {
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57 SDL_memset(SDL_joysticks, 0, arraylen);
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58 SDL_numjoysticks = status;
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59 }
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60 status = 0;
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61 }
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62 default_joystick = NULL;
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63 return (status);
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64 }
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65
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66 /*
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67 * Count the number of joysticks attached to the system
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68 */
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69 int
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70 SDL_NumJoysticks(void)
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71 {
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72 return SDL_numjoysticks;
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73 }
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74
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75 /*
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76 * Get the implementation dependent name of a joystick
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77 */
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78 const char *
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79 SDL_JoystickName(int device_index)
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80 {
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81 if ((device_index < 0) || (device_index >= SDL_numjoysticks)) {
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82 SDL_SetError("There are %d joysticks available", SDL_numjoysticks);
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83 return (NULL);
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84 }
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85 return (SDL_SYS_JoystickName(device_index));
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86 }
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87
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88 /*
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89 * Open a joystick for use - the index passed as an argument refers to
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90 * the N'th joystick on the system. This index is the value which will
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91 * identify this joystick in future joystick events.
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92 *
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93 * This function returns a joystick identifier, or NULL if an error occurred.
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94 */
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95 SDL_Joystick *
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96 SDL_JoystickOpen(int device_index)
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97 {
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98 int i;
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99 SDL_Joystick *joystick;
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100
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101 if ((device_index < 0) || (device_index >= SDL_numjoysticks)) {
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102 SDL_SetError("There are %d joysticks available", SDL_numjoysticks);
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103 return (NULL);
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104 }
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105
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106 /* If the joystick is already open, return it */
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107 for (i = 0; SDL_joysticks[i]; ++i) {
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108 if (device_index == SDL_joysticks[i]->index) {
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109 joystick = SDL_joysticks[i];
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110 ++joystick->ref_count;
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111 return (joystick);
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112 }
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113 }
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114
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115 /* Create and initialize the joystick */
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116 joystick = (SDL_Joystick *) SDL_malloc((sizeof *joystick));
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117 if (joystick != NULL) {
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118 SDL_memset(joystick, 0, (sizeof *joystick));
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119 joystick->index = device_index;
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120 if (SDL_SYS_JoystickOpen(joystick) < 0) {
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121 SDL_free(joystick);
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122 joystick = NULL;
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123 } else {
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124 if (joystick->naxes > 0) {
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125 joystick->axes = (Sint16 *) SDL_malloc
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126 (joystick->naxes * sizeof(Sint16));
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127 }
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128 if (joystick->nhats > 0) {
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129 joystick->hats = (Uint8 *) SDL_malloc
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130 (joystick->nhats * sizeof(Uint8));
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131 }
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132 if (joystick->nballs > 0) {
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133 joystick->balls = (struct balldelta *) SDL_malloc
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134 (joystick->nballs * sizeof(*joystick->balls));
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135 }
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136 if (joystick->nbuttons > 0) {
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137 joystick->buttons = (Uint8 *) SDL_malloc
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138 (joystick->nbuttons * sizeof(Uint8));
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139 }
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140 if (((joystick->naxes > 0) && !joystick->axes)
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141 || ((joystick->nhats > 0) && !joystick->hats)
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142 || ((joystick->nballs > 0) && !joystick->balls)
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143 || ((joystick->nbuttons > 0) && !joystick->buttons)) {
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144 SDL_OutOfMemory();
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145 SDL_JoystickClose(joystick);
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146 joystick = NULL;
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147 }
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148 if (joystick->axes) {
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149 SDL_memset(joystick->axes, 0,
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150 joystick->naxes * sizeof(Sint16));
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151 }
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152 if (joystick->hats) {
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153 SDL_memset(joystick->hats, 0,
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154 joystick->nhats * sizeof(Uint8));
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155 }
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156 if (joystick->balls) {
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157 SDL_memset(joystick->balls, 0,
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158 joystick->nballs * sizeof(*joystick->balls));
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159 }
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160 if (joystick->buttons) {
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161 SDL_memset(joystick->buttons, 0,
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162 joystick->nbuttons * sizeof(Uint8));
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163 }
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164 }
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165 }
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166 if (joystick) {
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167 /* Add joystick to list */
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168 ++joystick->ref_count;
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169 SDL_Lock_EventThread();
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170 for (i = 0; SDL_joysticks[i]; ++i)
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171 /* Skip to next joystick */ ;
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172 SDL_joysticks[i] = joystick;
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173 SDL_Unlock_EventThread();
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174 }
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175 return (joystick);
0
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176 }
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177
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178 /*
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179 * Returns 1 if the joystick has been opened, or 0 if it has not.
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180 */
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181 int
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182 SDL_JoystickOpened(int device_index)
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183 {
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184 int i, opened;
0
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185
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186 opened = 0;
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187 for (i = 0; SDL_joysticks[i]; ++i) {
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188 if (SDL_joysticks[i]->index == (Uint8) device_index) {
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189 opened = 1;
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190 break;
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191 }
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192 }
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193 return (opened);
0
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194 }
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195
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196 static int
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197 ValidJoystick(SDL_Joystick ** joystick)
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198 {
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199 int valid;
0
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200
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201 if (*joystick == NULL) {
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202 *joystick = default_joystick;
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203 }
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204 if (*joystick == NULL) {
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205 SDL_SetError("Joystick hasn't been opened yet");
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206 valid = 0;
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207 } else {
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208 valid = 1;
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209 }
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210 return valid;
0
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211 }
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212
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213 /*
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214 * Get the device index of an opened joystick.
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215 */
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216 int
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217 SDL_JoystickIndex(SDL_Joystick * joystick)
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218 {
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219 if (!ValidJoystick(&joystick)) {
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220 return (-1);
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221 }
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222 return (joystick->index);
0
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223 }
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224
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225 /*
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226 * Get the number of multi-dimensional axis controls on a joystick
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227 */
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228 int
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229 SDL_JoystickNumAxes(SDL_Joystick * joystick)
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230 {
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231 if (!ValidJoystick(&joystick)) {
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232 return (-1);
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233 }
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234 return (joystick->naxes);
0
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235 }
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236
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237 /*
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238 * Get the number of hats on a joystick
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239 */
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240 int
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241 SDL_JoystickNumHats(SDL_Joystick * joystick)
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242 {
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243 if (!ValidJoystick(&joystick)) {
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244 return (-1);
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245 }
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246 return (joystick->nhats);
0
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247 }
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248
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249 /*
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250 * Get the number of trackballs on a joystick
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251 */
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252 int
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253 SDL_JoystickNumBalls(SDL_Joystick * joystick)
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254 {
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255 if (!ValidJoystick(&joystick)) {
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256 return (-1);
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257 }
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258 return (joystick->nballs);
0
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259 }
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260
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261 /*
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262 * Get the number of buttons on a joystick
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263 */
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264 int
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265 SDL_JoystickNumButtons(SDL_Joystick * joystick)
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266 {
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267 if (!ValidJoystick(&joystick)) {
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268 return (-1);
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269 }
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270 return (joystick->nbuttons);
0
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271 }
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272
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273 /*
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274 * Get the current state of an axis control on a joystick
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275 */
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276 Sint16
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277 SDL_JoystickGetAxis(SDL_Joystick * joystick, int axis)
0
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278 {
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279 Sint16 state;
0
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280
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281 if (!ValidJoystick(&joystick)) {
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282 return (0);
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283 }
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284 if (axis < joystick->naxes) {
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285 state = joystick->axes[axis];
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286 } else {
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287 SDL_SetError("Joystick only has %d axes", joystick->naxes);
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288 state = 0;
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289 }
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290 return (state);
0
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291 }
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292
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293 /*
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294 * Get the current state of a hat on a joystick
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295 */
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296 Uint8
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297 SDL_JoystickGetHat(SDL_Joystick * joystick, int hat)
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298 {
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299 Uint8 state;
0
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300
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301 if (!ValidJoystick(&joystick)) {
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302 return (0);
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303 }
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304 if (hat < joystick->nhats) {
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305 state = joystick->hats[hat];
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306 } else {
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307 SDL_SetError("Joystick only has %d hats", joystick->nhats);
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308 state = 0;
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309 }
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310 return (state);
0
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311 }
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312
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313 /*
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314 * Get the ball axis change since the last poll
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315 */
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316 int
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317 SDL_JoystickGetBall(SDL_Joystick * joystick, int ball, int *dx, int *dy)
0
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318 {
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319 int retval;
0
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320
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321 if (!ValidJoystick(&joystick)) {
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322 return (-1);
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323 }
0
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324
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325 retval = 0;
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326 if (ball < joystick->nballs) {
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327 if (dx) {
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328 *dx = joystick->balls[ball].dx;
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329 }
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330 if (dy) {
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331 *dy = joystick->balls[ball].dy;
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332 }
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333 joystick->balls[ball].dx = 0;
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334 joystick->balls[ball].dy = 0;
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335 } else {
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336 SDL_SetError("Joystick only has %d balls", joystick->nballs);
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337 retval = -1;
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338 }
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339 return (retval);
0
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340 }
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341
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342 /*
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343 * Get the current state of a button on a joystick
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344 */
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345 Uint8
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346 SDL_JoystickGetButton(SDL_Joystick * joystick, int button)
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347 {
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348 Uint8 state;
0
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349
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350 if (!ValidJoystick(&joystick)) {
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351 return (0);
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352 }
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353 if (button < joystick->nbuttons) {
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354 state = joystick->buttons[button];
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355 } else {
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356 SDL_SetError("Joystick only has %d buttons", joystick->nbuttons);
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357 state = 0;
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358 }
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359 return (state);
0
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360 }
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361
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362 /*
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363 * Close a joystick previously opened with SDL_JoystickOpen()
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364 */
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365 void
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366 SDL_JoystickClose(SDL_Joystick * joystick)
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367 {
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368 int i;
0
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369
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370 if (!ValidJoystick(&joystick)) {
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371 return;
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372 }
0
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373
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374 /* First decrement ref count */
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375 if (--joystick->ref_count > 0) {
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376 return;
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377 }
0
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378
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379 /* Lock the event queue - prevent joystick polling */
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380 SDL_Lock_EventThread();
0
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381
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382 if (joystick == default_joystick) {
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383 default_joystick = NULL;
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384 }
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385 SDL_SYS_JoystickClose(joystick);
0
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386
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387 /* Remove joystick from list */
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388 for (i = 0; SDL_joysticks[i]; ++i) {
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389 if (joystick == SDL_joysticks[i]) {
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390 SDL_memcpy(&SDL_joysticks[i], &SDL_joysticks[i + 1],
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391 (SDL_numjoysticks - i) * sizeof(joystick));
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392 break;
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393 }
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394 }
0
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395
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396 /* Let the event thread keep running */
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397 SDL_Unlock_EventThread();
0
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398
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399 /* Free the data associated with this joystick */
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400 if (joystick->axes) {
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401 SDL_free(joystick->axes);
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402 }
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403 if (joystick->hats) {
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404 SDL_free(joystick->hats);
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diff changeset
405 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
406 if (joystick->balls) {
1668
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diff changeset
407 SDL_free(joystick->balls);
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1612
diff changeset
408 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
409 if (joystick->buttons) {
1668
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parents: 1662
diff changeset
410 SDL_free(joystick->buttons);
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
411 }
1668
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diff changeset
412 SDL_free(joystick);
0
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parents:
diff changeset
413 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
414
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
415 void
1668
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diff changeset
416 SDL_JoystickQuit(void)
0
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parents:
diff changeset
417 {
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1612
diff changeset
418 /* Stop the event polling */
1668
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diff changeset
419 SDL_Lock_EventThread();
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1612
diff changeset
420 SDL_numjoysticks = 0;
1668
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diff changeset
421 SDL_Unlock_EventThread();
0
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parents:
diff changeset
422
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Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
423 /* Quit the joystick setup */
1668
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diff changeset
424 SDL_SYS_JoystickQuit();
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
425 if (SDL_joysticks) {
1668
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parents: 1662
diff changeset
426 SDL_free(SDL_joysticks);
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1612
diff changeset
427 SDL_joysticks = NULL;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1612
diff changeset
428 }
0
74212992fb08 Initial revision
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parents:
diff changeset
429 }
74212992fb08 Initial revision
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parents:
diff changeset
430
74212992fb08 Initial revision
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parents:
diff changeset
431
74212992fb08 Initial revision
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parents:
diff changeset
432 /* These are global for SDL_sysjoystick.c and SDL_events.c */
74212992fb08 Initial revision
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parents:
diff changeset
433
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782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
434 int
1668
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diff changeset
435 SDL_PrivateJoystickAxis(SDL_Joystick * joystick, Uint8 axis, Sint16 value)
0
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diff changeset
436 {
1662
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diff changeset
437 int posted;
0
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diff changeset
438
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diff changeset
439 /* Update internal joystick state */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
440 joystick->axes[axis] = value;
0
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parents:
diff changeset
441
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
442 /* Post the event, if desired */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
443 posted = 0;
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
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parents: 1358
diff changeset
444 #if !SDL_EVENTS_DISABLED
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
445 if (SDL_ProcessEvents[SDL_JOYAXISMOTION] == SDL_ENABLE) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1612
diff changeset
446 SDL_Event event;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
447 event.type = SDL_JOYAXISMOTION;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
448 event.jaxis.which = joystick->index;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
449 event.jaxis.axis = axis;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1612
diff changeset
450 event.jaxis.value = value;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
451 if ((SDL_EventOK == NULL) || (*SDL_EventOK) (&event)) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
452 posted = 1;
1668
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diff changeset
453 SDL_PushEvent(&event);
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
454 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
455 }
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
456 #endif /* !SDL_EVENTS_DISABLED */
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1612
diff changeset
457 return (posted);
0
74212992fb08 Initial revision
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parents:
diff changeset
458 }
74212992fb08 Initial revision
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parents:
diff changeset
459
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1612
diff changeset
460 int
1668
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diff changeset
461 SDL_PrivateJoystickHat(SDL_Joystick * joystick, Uint8 hat, Uint8 value)
0
74212992fb08 Initial revision
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parents:
diff changeset
462 {
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1612
diff changeset
463 int posted;
0
74212992fb08 Initial revision
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parents:
diff changeset
464
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
465 /* Update internal joystick state */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
466 joystick->hats[hat] = value;
0
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parents:
diff changeset
467
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
468 /* Post the event, if desired */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1612
diff changeset
469 posted = 0;
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
470 #if !SDL_EVENTS_DISABLED
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
471 if (SDL_ProcessEvents[SDL_JOYHATMOTION] == SDL_ENABLE) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
472 SDL_Event event;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
473 event.jhat.type = SDL_JOYHATMOTION;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
474 event.jhat.which = joystick->index;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
475 event.jhat.hat = hat;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
476 event.jhat.value = value;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
477 if ((SDL_EventOK == NULL) || (*SDL_EventOK) (&event)) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
478 posted = 1;
1668
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diff changeset
479 SDL_PushEvent(&event);
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
480 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
481 }
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
482 #endif /* !SDL_EVENTS_DISABLED */
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1612
diff changeset
483 return (posted);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
484 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
485
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
486 int
1668
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diff changeset
487 SDL_PrivateJoystickBall(SDL_Joystick * joystick, Uint8 ball,
4da1ee79c9af more tweaking indent options
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diff changeset
488 Sint16 xrel, Sint16 yrel)
0
74212992fb08 Initial revision
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parents:
diff changeset
489 {
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
490 int posted;
0
74212992fb08 Initial revision
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parents:
diff changeset
491
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
492 /* Update internal mouse state */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
493 joystick->balls[ball].dx += xrel;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
494 joystick->balls[ball].dy += yrel;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
495
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
496 /* Post the event, if desired */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
497 posted = 0;
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
498 #if !SDL_EVENTS_DISABLED
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
499 if (SDL_ProcessEvents[SDL_JOYBALLMOTION] == SDL_ENABLE) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
500 SDL_Event event;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
501 event.jball.type = SDL_JOYBALLMOTION;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
502 event.jball.which = joystick->index;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
503 event.jball.ball = ball;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
504 event.jball.xrel = xrel;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
505 event.jball.yrel = yrel;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
506 if ((SDL_EventOK == NULL) || (*SDL_EventOK) (&event)) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
507 posted = 1;
1668
4da1ee79c9af more tweaking indent options
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diff changeset
508 SDL_PushEvent(&event);
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
509 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
510 }
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
511 #endif /* !SDL_EVENTS_DISABLED */
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
512 return (posted);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
513 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
514
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
515 int
1668
4da1ee79c9af more tweaking indent options
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diff changeset
516 SDL_PrivateJoystickButton(SDL_Joystick * joystick, Uint8 button, Uint8 state)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
517 {
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
518 int posted;
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
519 #if !SDL_EVENTS_DISABLED
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
520 SDL_Event event;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
521
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
522 switch (state) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
523 case SDL_PRESSED:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
524 event.type = SDL_JOYBUTTONDOWN;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
525 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
526 case SDL_RELEASED:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
527 event.type = SDL_JOYBUTTONUP;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
528 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
529 default:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
530 /* Invalid state -- bail */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
531 return (0);
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532 }
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533 #endif /* !SDL_EVENTS_DISABLED */
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534
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535 /* Update internal joystick state */
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536 joystick->buttons[button] = state;
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537
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538 /* Post the event, if desired */
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539 posted = 0;
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540 #if !SDL_EVENTS_DISABLED
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541 if (SDL_ProcessEvents[event.type] == SDL_ENABLE) {
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542 event.jbutton.which = joystick->index;
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543 event.jbutton.button = button;
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544 event.jbutton.state = state;
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545 if ((SDL_EventOK == NULL) || (*SDL_EventOK) (&event)) {
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546 posted = 1;
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547 SDL_PushEvent(&event);
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548 }
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549 }
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550 #endif /* !SDL_EVENTS_DISABLED */
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551 return (posted);
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552 }
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553
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554 void
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555 SDL_JoystickUpdate(void)
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556 {
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557 int i;
0
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558
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559 for (i = 0; SDL_joysticks[i]; ++i) {
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560 SDL_SYS_JoystickUpdate(SDL_joysticks[i]);
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561 }
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562 }
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563
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564 int
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565 SDL_JoystickEventState(int state)
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566 {
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567 #if SDL_EVENTS_DISABLED
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568 return SDL_IGNORE;
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569 #else
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570 const Uint8 event_list[] = {
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571 SDL_JOYAXISMOTION, SDL_JOYBALLMOTION, SDL_JOYHATMOTION,
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572 SDL_JOYBUTTONDOWN, SDL_JOYBUTTONUP,
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573 };
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574 unsigned int i;
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575
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576 switch (state) {
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577 case SDL_QUERY:
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578 state = SDL_IGNORE;
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579 for (i = 0; i < SDL_arraysize(event_list); ++i) {
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580 state = SDL_EventState(event_list[i], SDL_QUERY);
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581 if (state == SDL_ENABLE) {
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582 break;
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583 }
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584 }
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585 break;
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586 default:
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587 for (i = 0; i < SDL_arraysize(event_list); ++i) {
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588 SDL_EventState(event_list[i], state);
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589 }
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590 break;
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591 }
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592 return (state);
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593 #endif /* SDL_EVENTS_DISABLED */
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594 }
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595
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596 /* vi: set ts=4 sw=4 expandtab: */