Mercurial > sdl-ios-xcode
annotate src/joystick/linux/SDL_sysjoystick.c @ 1795:398ac0f88e4d
Fixed bug #220
The AltiVec blitters don't compile, since they require __VEC__ to be enabled in
order for the compiler to understand "vector" and friends (i.e. do AltiVec)
But you don't want to turn AltiVec on globally, since then the code would only
run on a G4 (there are already runtime tests, before using the AltiVec
variants)
The solution here is to enable AltiVec locally, for the actual AltiVec code.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Tue, 09 May 2006 15:09:47 +0000 |
| parents | 97f20f2a1d85 |
| children | 2f381b48b05c |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
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3 Copyright (C) 1997-2006 Sam Lantinga |
| 0 | 4 |
| 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 |
| 0 | 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. |
| 0 | 9 |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
|
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13 Lesser General Public License for more details. |
| 0 | 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 |
| 0 | 18 |
| 19 Sam Lantinga | |
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20 slouken@libsdl.org |
| 0 | 21 */ |
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22 #include "SDL_config.h" |
| 0 | 23 |
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24 #ifdef SDL_JOYSTICK_LINUX |
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25 |
| 0 | 26 /* This is the system specific header for the SDL joystick API */ |
| 27 | |
| 28 #include <sys/stat.h> | |
| 29 #include <unistd.h> | |
| 30 #include <fcntl.h> | |
| 31 #include <sys/ioctl.h> | |
| 32 #include <limits.h> /* For the definition of PATH_MAX */ | |
|
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33 #ifdef __arm__ |
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34 #include <linux/limits.h> /* Arm cross-compiler needs this */ |
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35 #endif |
| 0 | 36 #include <linux/joystick.h> |
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37 #if SDL_INPUT_LINUXEV |
| 0 | 38 #include <linux/input.h> |
| 39 #endif | |
| 40 | |
| 41 #include "SDL_joystick.h" | |
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42 #include "../SDL_sysjoystick.h" |
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43 #include "../SDL_joystick_c.h" |
| 0 | 44 |
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45 /* Special joystick configurations */ |
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46 static struct { |
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47 const char *name; |
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48 int naxes; |
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49 int nhats; |
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50 int nballs; |
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51 } special_joysticks[] = { |
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52 { "MadCatz Panther XL", 3, 2, 1 }, /* We don't handle rudder (axis 8) */ |
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53 { "SideWinder Precision Pro", 4, 1, 0 }, |
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54 { "SideWinder 3D Pro", 4, 1, 0 }, |
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55 { "Microsoft SideWinder 3D Pro", 4, 1, 0 }, |
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56 { "Microsoft SideWinder Dual Strike USB version 1.0", 2, 1, 0 }, |
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57 { "WingMan Interceptor", 3, 3, 0 }, |
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58 { "WingMan Extreme Digital 3D", 4, 1, 0 }, |
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59 { "Microsoft SideWinder Precision 2 Joystick", 4, 1, 0 }, |
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60 { "Logitech Inc. WingMan Extreme Digital 3D", 4, 1, 0 }, |
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61 { "Saitek Saitek X45", 6, 1, 0 } |
| 0 | 62 }; |
| 63 | |
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64 #ifndef NO_LOGICAL_JOYSTICKS |
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65 |
| 1551 | 66 /* |
| 67 Some USB HIDs show up as a single joystick even though they actually | |
| 68 control 2 or more joysticks. | |
| 69 */ | |
| 70 /* | |
| 71 This code handles the MP-8800 (Quad) and MP-8866 (Dual), which can | |
| 72 be identified by their transparent blue design. It's quite trivial | |
| 73 to add other joysticks with similar quirky behavior. | |
| 74 -id | |
| 75 */ | |
| 76 | |
| 77 struct joystick_logical_mapping { | |
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78 int njoy; |
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79 int nthing; |
| 1551 | 80 }; |
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81 |
| 1551 | 82 /* |
| 83 {logical joy, logical axis}, | |
| 84 {logical joy, logical hat}, | |
| 85 {logical joy, logical ball}, | |
| 86 {logical joy, logical button} | |
| 87 */ | |
| 88 | |
| 89 static struct joystick_logical_mapping mp88xx_1_logical_axismap[] = { | |
| 90 {0,0},{0,1},{0,2},{0,3},{0,4},{0,5} | |
| 91 }; | |
| 92 static struct joystick_logical_mapping mp88xx_1_logical_buttonmap[] = { | |
| 93 {0,0},{0,1},{0,2},{0,3},{0,4},{0,5},{0,6},{0,7},{0,8},{0,9},{0,10},{0,11} | |
| 94 }; | |
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95 |
| 1551 | 96 static struct joystick_logical_mapping mp88xx_2_logical_axismap[] = { |
| 97 {0,0},{0,1},{0,2},{1,0},{1,1},{0,3}, | |
| 98 {1,2},{1,3},{0,4},{0,5},{1,4},{1,5} | |
| 99 }; | |
| 100 static struct joystick_logical_mapping mp88xx_2_logical_buttonmap[] = { | |
| 101 {0,0},{0,1},{0,2},{0,3},{0,4},{0,5},{0,6},{0,7},{0,8},{0,9},{0,10},{0,11}, | |
| 102 {1,0},{1,1},{1,2},{1,3},{1,4},{1,5},{1,6},{1,7},{1,8},{1,9},{1,10},{1,11} | |
| 103 }; | |
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104 |
| 1551 | 105 static struct joystick_logical_mapping mp88xx_3_logical_axismap[] = { |
| 106 {0,0},{0,1},{0,2},{1,0},{1,1},{0,3}, | |
| 107 {1,2},{1,3},{2,0},{2,1},{2,2},{2,3}, | |
| 108 {0,4},{0,5},{1,4},{1,5},{2,4},{2,5} | |
| 109 }; | |
| 110 static struct joystick_logical_mapping mp88xx_3_logical_buttonmap[] = { | |
| 111 {0,0},{0,1},{0,2},{0,3},{0,4},{0,5},{0,6},{0,7},{0,8},{0,9},{0,10},{0,11}, | |
| 112 {1,0},{1,1},{1,2},{1,3},{1,4},{1,5},{1,6},{1,7},{1,8},{1,9},{1,10},{1,11}, | |
| 113 {2,0},{2,1},{2,2},{2,3},{2,4},{2,5},{2,6},{2,7},{2,8},{2,9},{2,10},{2,11} | |
| 114 }; | |
| 115 | |
| 116 static struct joystick_logical_mapping mp88xx_4_logical_axismap[] = { | |
| 117 {0,0},{0,1},{0,2},{1,0},{1,1},{0,3}, | |
| 118 {1,2},{1,3},{2,0},{2,1},{2,2},{2,3}, | |
| 119 {3,0},{3,1},{3,2},{3,3},{0,4},{0,5}, | |
| 120 {1,4},{1,5},{2,4},{2,5},{3,4},{3,5} | |
| 121 }; | |
| 122 static struct joystick_logical_mapping mp88xx_4_logical_buttonmap[] = { | |
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123 {0,0},{0,1},{0,2},{0,3},{0,4},{0,5},{0,6},{0,7},{0,8},{0,9},{0,10},{0,11}, |
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124 {1,0},{1,1},{1,2},{1,3},{1,4},{1,5},{1,6},{1,7},{1,8},{1,9},{1,10},{1,11}, |
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125 {2,0},{2,1},{2,2},{2,3},{2,4},{2,5},{2,6},{2,7},{2,8},{2,9},{2,10},{2,11}, |
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126 {3,0},{3,1},{3,2},{3,3},{3,4},{3,5},{3,6},{3,7},{3,8},{3,9},{3,10},{3,11} |
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127 }; |
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128 |
| 1551 | 129 struct joystick_logical_layout { |
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130 int naxes; |
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131 int nhats; |
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132 int nballs; |
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133 int nbuttons; |
| 1551 | 134 }; |
| 135 | |
| 136 static struct joystick_logical_layout mp88xx_1_logical_layout[] = { | |
| 137 {6, 0, 0, 12} | |
| 138 }; | |
| 139 static struct joystick_logical_layout mp88xx_2_logical_layout[] = { | |
| 140 {6, 0, 0, 12}, | |
| 141 {6, 0, 0, 12} | |
| 142 }; | |
| 143 static struct joystick_logical_layout mp88xx_3_logical_layout[] = { | |
| 144 {6, 0, 0, 12}, | |
| 145 {6, 0, 0, 12}, | |
| 146 {6, 0, 0, 12} | |
| 147 }; | |
| 148 static struct joystick_logical_layout mp88xx_4_logical_layout[] = { | |
| 149 {6, 0, 0, 12}, | |
| 150 {6, 0, 0, 12}, | |
| 151 {6, 0, 0, 12}, | |
| 152 {6, 0, 0, 12} | |
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153 }; |
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154 |
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155 /* |
| 1551 | 156 This array sets up a means of mapping a single physical joystick to |
| 157 multiple logical joysticks. (djm) | |
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158 |
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159 njoys |
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160 the number of logical joysticks |
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161 |
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162 layouts |
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163 an array of layout structures, one to describe each logical joystick |
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164 |
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165 axes, hats, balls, buttons |
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166 arrays that map a physical thingy to a logical thingy |
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167 */ |
| 1551 | 168 struct joystick_logicalmap { |
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169 const char *name; |
| 1551 | 170 int nbuttons; |
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171 int njoys; |
| 1551 | 172 struct joystick_logical_layout *layout; |
| 173 struct joystick_logical_mapping *axismap; | |
| 174 struct joystick_logical_mapping *hatmap; | |
| 175 struct joystick_logical_mapping *ballmap; | |
| 176 struct joystick_logical_mapping *buttonmap; | |
| 177 }; | |
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178 |
| 1551 | 179 static struct joystick_logicalmap joystick_logicalmap[] = { |
| 180 { | |
| 181 "WiseGroup.,Ltd MP-8866 Dual USB Joypad", | |
| 182 12, | |
| 183 1, | |
| 184 mp88xx_1_logical_layout, | |
| 185 mp88xx_1_logical_axismap, | |
| 186 NULL, | |
| 187 NULL, | |
| 188 mp88xx_1_logical_buttonmap | |
| 189 }, | |
| 190 { | |
| 191 "WiseGroup.,Ltd MP-8866 Dual USB Joypad", | |
| 192 24, | |
| 193 2, | |
| 194 mp88xx_2_logical_layout, | |
| 195 mp88xx_2_logical_axismap, | |
| 196 NULL, | |
| 197 NULL, | |
| 198 mp88xx_2_logical_buttonmap | |
| 199 }, | |
| 200 { | |
| 201 "WiseGroup.,Ltd MP-8800 Quad USB Joypad", | |
| 202 12, | |
| 203 1, | |
| 204 mp88xx_1_logical_layout, | |
| 205 mp88xx_1_logical_axismap, | |
| 206 NULL, | |
| 207 NULL, | |
| 208 mp88xx_1_logical_buttonmap | |
| 209 }, | |
| 210 { | |
| 211 "WiseGroup.,Ltd MP-8800 Quad USB Joypad", | |
| 212 24, | |
| 213 2, | |
| 214 mp88xx_2_logical_layout, | |
| 215 mp88xx_2_logical_axismap, | |
| 216 NULL, | |
| 217 NULL, | |
| 218 mp88xx_2_logical_buttonmap | |
| 219 }, | |
| 220 { | |
| 221 "WiseGroup.,Ltd MP-8800 Quad USB Joypad", | |
| 222 36, | |
| 223 3, | |
| 224 mp88xx_3_logical_layout, | |
| 225 mp88xx_3_logical_axismap, | |
| 226 NULL, | |
| 227 NULL, | |
| 228 mp88xx_3_logical_buttonmap | |
| 229 }, | |
| 230 { | |
| 231 "WiseGroup.,Ltd MP-8800 Quad USB Joypad", | |
| 232 48, | |
| 233 4, | |
| 234 mp88xx_4_logical_layout, | |
| 235 mp88xx_4_logical_axismap, | |
| 236 NULL, | |
| 237 NULL, | |
| 238 mp88xx_4_logical_buttonmap | |
| 239 } | |
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240 }; |
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241 |
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242 /* find the head of a linked list, given a point in it |
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243 */ |
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244 #define SDL_joylist_head(i, start)\ |
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245 for(i = start; SDL_joylist[i].fname == NULL;) i = SDL_joylist[i].prev; |
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246 |
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247 #define SDL_logical_joydecl(d) d |
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248 |
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249 |
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250 #else |
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251 |
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252 #define SDL_logical_joydecl(d) |
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253 |
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254 #endif /* USE_LOGICAL_JOYSTICKS */ |
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255 |
| 0 | 256 /* The maximum number of joysticks we'll detect */ |
| 257 #define MAX_JOYSTICKS 32 | |
| 258 | |
| 259 /* A list of available joysticks */ | |
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260 static struct |
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261 { |
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262 char* fname; |
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263 #ifndef NO_LOGICAL_JOYSTICKS |
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264 SDL_Joystick* joy; |
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265 struct joystick_logicalmap* map; |
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266 int prev; |
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267 int next; |
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268 int logicalno; |
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269 #endif /* USE_LOGICAL_JOYSTICKS */ |
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270 } SDL_joylist[MAX_JOYSTICKS]; |
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271 |
| 0 | 272 |
| 273 /* The private structure used to keep track of a joystick */ | |
| 274 struct joystick_hwdata { | |
| 275 int fd; | |
| 276 /* The current linux joystick driver maps hats to two axes */ | |
| 277 struct hwdata_hat { | |
| 278 int axis[2]; | |
| 279 } *hats; | |
| 280 /* The current linux joystick driver maps balls to two axes */ | |
| 281 struct hwdata_ball { | |
| 282 int axis[2]; | |
| 283 } *balls; | |
| 284 | |
| 285 /* Support for the Linux 2.4 unified input interface */ | |
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286 #if SDL_INPUT_LINUXEV |
| 0 | 287 SDL_bool is_hid; |
| 288 Uint8 key_map[KEY_MAX-BTN_MISC]; | |
| 289 Uint8 abs_map[ABS_MAX]; | |
| 290 struct axis_correct { | |
| 291 int used; | |
| 292 int coef[3]; | |
| 293 } abs_correct[ABS_MAX]; | |
| 294 #endif | |
| 295 }; | |
| 296 | |
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297 |
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298 #ifndef NO_LOGICAL_JOYSTICKS |
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299 |
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300 static int CountLogicalJoysticks(int max) |
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301 { |
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302 register int i, j, k, ret, prev; |
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303 const char* name; |
| 1551 | 304 int nbuttons, fd; |
| 305 unsigned char n; | |
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306 |
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307 ret = 0; |
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308 |
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309 for(i = 0; i < max; i++) { |
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310 name = SDL_SYS_JoystickName(i); |
| 1551 | 311 |
| 312 fd = open(SDL_joylist[i].fname, O_RDONLY, 0); | |
| 313 if ( fd >= 0 ) { | |
| 314 if ( ioctl(fd, JSIOCGBUTTONS, &n) < 0 ) { | |
| 315 nbuttons = -1; | |
| 316 } else { | |
| 317 nbuttons = n; | |
| 318 } | |
| 319 close(fd); | |
| 320 } | |
| 321 else { | |
| 322 nbuttons=-1; | |
| 323 } | |
|
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324 |
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325 if (name) { |
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326 for(j = 0; j < SDL_arraysize(joystick_logicalmap); j++) { |
| 1551 | 327 if (!SDL_strcmp(name, joystick_logicalmap[j].name) && (nbuttons==-1 || nbuttons==joystick_logicalmap[j].nbuttons)) { |
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328 prev = i; |
| 1551 | 329 SDL_joylist[prev].map = &(joystick_logicalmap[j]); |
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330 |
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331 for(k = 1; k < joystick_logicalmap[j].njoys; k++) { |
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332 SDL_joylist[prev].next = max + ret; |
| 1551 | 333 SDL_joylist[max+ret].prev = prev; |
| 334 | |
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335 prev = max + ret; |
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336 SDL_joylist[prev].logicalno = k; |
| 1551 | 337 SDL_joylist[prev].map = &(joystick_logicalmap[j]); |
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338 ret++; |
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339 } |
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340 |
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341 break; |
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342 } |
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343 } |
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344 } |
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345 } |
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346 |
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347 return ret; |
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348 } |
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349 |
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350 static void LogicalSuffix(int logicalno, char* namebuf, int len) |
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351 { |
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352 register int slen; |
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353 const static char suffixs[] = |
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354 "01020304050607080910111213141516171819" |
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355 "20212223242526272829303132"; |
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356 const char* suffix; |
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357 slen = SDL_strlen(namebuf); |
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358 suffix = NULL; |
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359 |
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360 if (logicalno*2<sizeof(suffixs)) |
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361 suffix = suffixs + (logicalno*2); |
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362 |
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363 if (slen + 4 < len && suffix) { |
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364 namebuf[slen++] = ' '; |
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365 namebuf[slen++] = '#'; |
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366 namebuf[slen++] = suffix[0]; |
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367 namebuf[slen++] = suffix[1]; |
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368 namebuf[slen++] = 0; |
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369 } |
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370 } |
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371 |
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372 #endif /* USE_LOGICAL_JOYSTICKS */ |
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373 |
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374 #if SDL_INPUT_LINUXEV |
| 0 | 375 #define test_bit(nr, addr) \ |
| 376 (((1UL << ((nr) & 31)) & (((const unsigned int *) addr)[(nr) >> 5])) != 0) | |
| 377 | |
| 378 static int EV_IsJoystick(int fd) | |
| 379 { | |
| 380 unsigned long evbit[40]; | |
| 381 unsigned long keybit[40]; | |
| 382 unsigned long absbit[40]; | |
| 383 | |
| 384 if ( (ioctl(fd, EVIOCGBIT(0, sizeof(evbit)), evbit) < 0) || | |
| 385 (ioctl(fd, EVIOCGBIT(EV_KEY, sizeof(keybit)), keybit) < 0) || | |
| 386 (ioctl(fd, EVIOCGBIT(EV_ABS, sizeof(absbit)), absbit) < 0) ) { | |
| 387 return(0); | |
| 388 } | |
| 389 if (!(test_bit(EV_KEY, evbit) && test_bit(EV_ABS, evbit) && | |
| 390 test_bit(ABS_X, absbit) && test_bit(ABS_Y, absbit) && | |
| 391 (test_bit(BTN_TRIGGER, keybit) || test_bit(BTN_A, keybit) || test_bit(BTN_1, keybit)))) return 0; | |
| 392 return(1); | |
| 393 } | |
| 394 | |
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395 #endif /* SDL_INPUT_LINUXEV */ |
| 0 | 396 |
| 397 /* Function to scan the system for joysticks */ | |
| 398 int SDL_SYS_JoystickInit(void) | |
| 399 { | |
| 400 /* The base path of the joystick devices */ | |
|
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401 const char *joydev_pattern[] = { |
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402 #if SDL_INPUT_LINUXEV |
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403 "/dev/input/event%d", |
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404 #endif |
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405 "/dev/input/js%d", |
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406 "/dev/js%d" |
| 0 | 407 }; |
| 408 int numjoysticks; | |
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409 int i, j; |
| 0 | 410 int fd; |
| 411 char path[PATH_MAX]; | |
| 412 dev_t dev_nums[MAX_JOYSTICKS]; /* major/minor device numbers */ | |
| 413 struct stat sb; | |
| 414 int n, duplicate; | |
| 415 | |
| 416 numjoysticks = 0; | |
| 417 | |
| 418 /* First see if the user specified a joystick to use */ | |
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419 if ( SDL_getenv("SDL_JOYSTICK_DEVICE") != NULL ) { |
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420 SDL_strlcpy(path, SDL_getenv("SDL_JOYSTICK_DEVICE"), sizeof(path)); |
| 0 | 421 if ( stat(path, &sb) == 0 ) { |
| 422 fd = open(path, O_RDONLY, 0); | |
| 423 if ( fd >= 0 ) { | |
| 424 /* Assume the user knows what they're doing. */ | |
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425 SDL_joylist[numjoysticks].fname = SDL_strdup(path); |
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426 if ( SDL_joylist[numjoysticks].fname ) { |
| 0 | 427 dev_nums[numjoysticks] = sb.st_rdev; |
| 428 ++numjoysticks; | |
| 429 } | |
| 430 close(fd); | |
| 431 } | |
| 432 } | |
| 433 } | |
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434 |
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435 for ( i=0; i<SDL_arraysize(joydev_pattern); ++i ) { |
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436 for ( j=0; j < MAX_JOYSTICKS; ++j ) { |
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437 SDL_snprintf(path, SDL_arraysize(path), joydev_pattern[i], j); |
| 0 | 438 |
| 439 /* rcg06302000 replaced access(F_OK) call with stat(). | |
| 440 * stat() will fail if the file doesn't exist, so it's | |
| 441 * equivalent behaviour. | |
| 442 */ | |
| 443 if ( stat(path, &sb) == 0 ) { | |
| 444 /* Check to make sure it's not already in list. | |
| 445 * This happens when we see a stick via symlink. | |
| 446 */ | |
| 447 duplicate = 0; | |
| 448 for (n=0; (n<numjoysticks) && !duplicate; ++n) { | |
| 449 if ( sb.st_rdev == dev_nums[n] ) { | |
| 450 duplicate = 1; | |
| 451 } | |
| 452 } | |
| 453 if (duplicate) { | |
| 454 continue; | |
| 455 } | |
| 456 | |
| 457 fd = open(path, O_RDONLY, 0); | |
| 458 if ( fd < 0 ) { | |
| 459 continue; | |
| 460 } | |
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461 #if SDL_INPUT_LINUXEV |
| 0 | 462 #ifdef DEBUG_INPUT_EVENTS |
| 463 printf("Checking %s\n", path); | |
| 464 #endif | |
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465 if ( (i == 0) && ! EV_IsJoystick(fd) ) { |
| 0 | 466 close(fd); |
| 467 continue; | |
| 468 } | |
| 469 #endif | |
| 470 close(fd); | |
| 471 | |
| 472 /* We're fine, add this joystick */ | |
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473 SDL_joylist[numjoysticks].fname = SDL_strdup(path); |
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474 if ( SDL_joylist[numjoysticks].fname ) { |
| 0 | 475 dev_nums[numjoysticks] = sb.st_rdev; |
| 476 ++numjoysticks; | |
| 477 } | |
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478 } else |
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479 break; |
| 0 | 480 } |
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481 |
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482 #if SDL_INPUT_LINUXEV |
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483 /* This is a special case... |
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484 If the event devices are valid then the joystick devices |
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485 will be duplicates but without extra information about their |
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486 hats or balls. Unfortunately, the event devices can't |
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487 currently be calibrated, so it's a win-lose situation. |
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488 So : /dev/input/eventX = /dev/input/jsY = /dev/jsY |
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489 */ |
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490 if ( (i == 0) && (numjoysticks > 0) ) |
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491 break; |
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492 #endif |
| 0 | 493 } |
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494 #ifndef NO_LOGICAL_JOYSTICKS |
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495 numjoysticks += CountLogicalJoysticks(numjoysticks); |
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496 #endif |
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497 |
| 0 | 498 return(numjoysticks); |
| 499 } | |
| 500 | |
| 501 /* Function to get the device-dependent name of a joystick */ | |
| 502 const char *SDL_SYS_JoystickName(int index) | |
| 503 { | |
| 504 int fd; | |
| 505 static char namebuf[128]; | |
| 506 char *name; | |
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507 SDL_logical_joydecl(int oindex = index); |
| 0 | 508 |
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509 #ifndef NO_LOGICAL_JOYSTICKS |
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510 SDL_joylist_head(index, index); |
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511 #endif |
| 0 | 512 name = NULL; |
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513 fd = open(SDL_joylist[index].fname, O_RDONLY, 0); |
| 0 | 514 if ( fd >= 0 ) { |
| 515 if ( | |
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516 #if SDL_INPUT_LINUXEV |
| 0 | 517 (ioctl(fd, EVIOCGNAME(sizeof(namebuf)), namebuf) <= 0) && |
| 518 #endif | |
| 519 (ioctl(fd, JSIOCGNAME(sizeof(namebuf)), namebuf) <= 0) ) { | |
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520 name = SDL_joylist[index].fname; |
| 0 | 521 } else { |
| 522 name = namebuf; | |
| 523 } | |
| 524 close(fd); | |
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525 |
| 1551 | 526 |
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527 #ifndef NO_LOGICAL_JOYSTICKS |
| 1551 | 528 if (SDL_joylist[oindex].prev || SDL_joylist[oindex].next || index!=oindex) |
| 529 { | |
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530 LogicalSuffix(SDL_joylist[oindex].logicalno, namebuf, 128); |
| 1551 | 531 } |
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532 #endif |
| 0 | 533 } |
| 534 return name; | |
| 535 } | |
| 536 | |
| 537 static int allocate_hatdata(SDL_Joystick *joystick) | |
| 538 { | |
| 539 int i; | |
| 540 | |
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541 joystick->hwdata->hats = (struct hwdata_hat *)SDL_malloc( |
| 0 | 542 joystick->nhats * sizeof(struct hwdata_hat)); |
| 543 if ( joystick->hwdata->hats == NULL ) { | |
| 544 return(-1); | |
| 545 } | |
| 546 for ( i=0; i<joystick->nhats; ++i ) { | |
| 547 joystick->hwdata->hats[i].axis[0] = 1; | |
| 548 joystick->hwdata->hats[i].axis[1] = 1; | |
| 549 } | |
| 550 return(0); | |
| 551 } | |
| 552 | |
| 553 static int allocate_balldata(SDL_Joystick *joystick) | |
| 554 { | |
| 555 int i; | |
| 556 | |
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557 joystick->hwdata->balls = (struct hwdata_ball *)SDL_malloc( |
| 0 | 558 joystick->nballs * sizeof(struct hwdata_ball)); |
| 559 if ( joystick->hwdata->balls == NULL ) { | |
| 560 return(-1); | |
| 561 } | |
| 562 for ( i=0; i<joystick->nballs; ++i ) { | |
| 563 joystick->hwdata->balls[i].axis[0] = 0; | |
| 564 joystick->hwdata->balls[i].axis[1] = 0; | |
| 565 } | |
| 566 return(0); | |
| 567 } | |
| 568 | |
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569 static SDL_bool JS_ConfigJoystick(SDL_Joystick *joystick, int fd) |
| 0 | 570 { |
| 571 SDL_bool handled; | |
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572 unsigned char n; |
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573 int old_axes, tmp_naxes, tmp_nhats, tmp_nballs; |
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574 const char *name; |
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575 char *env, env_name[128]; |
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576 int i; |
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577 |
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578 handled = SDL_FALSE; |
| 0 | 579 |
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580 /* Default joystick device settings */ |
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581 if ( ioctl(fd, JSIOCGAXES, &n) < 0 ) { |
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582 joystick->naxes = 2; |
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583 } else { |
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584 joystick->naxes = n; |
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585 } |
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586 if ( ioctl(fd, JSIOCGBUTTONS, &n) < 0 ) { |
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587 joystick->nbuttons = 2; |
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588 } else { |
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589 joystick->nbuttons = n; |
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590 } |
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591 |
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592 name = SDL_SYS_JoystickName(joystick->index); |
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593 old_axes = joystick->naxes; |
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594 |
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595 /* Generic analog joystick support */ |
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596 if ( SDL_strstr(name, "Analog") == name && SDL_strstr(name, "-hat") ) { |
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597 if ( SDL_sscanf(name,"Analog %d-axis %*d-button %d-hat", |
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598 &tmp_naxes, &tmp_nhats) == 2 ) { |
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599 |
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600 joystick->naxes = tmp_naxes; |
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601 joystick->nhats = tmp_nhats; |
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602 |
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603 handled = SDL_TRUE; |
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604 } |
| 0 | 605 } |
|
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606 |
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607 /* Special joystick support */ |
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608 for ( i=0; i < SDL_arraysize(special_joysticks); ++i ) { |
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609 if ( SDL_strcmp(name, special_joysticks[i].name) == 0 ) { |
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610 |
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611 joystick->naxes = special_joysticks[i].naxes; |
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612 joystick->nhats = special_joysticks[i].nhats; |
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613 joystick->nballs = special_joysticks[i].nballs; |
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614 |
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615 handled = SDL_TRUE; |
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616 break; |
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617 } |
| 0 | 618 } |
|
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619 |
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620 /* User environment joystick support */ |
|
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621 if ( (env = SDL_getenv("SDL_LINUX_JOYSTICK")) ) { |
|
1379
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622 *env_name = '\0'; |
|
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623 if ( *env == '\'' && SDL_sscanf(env, "'%[^']s'", env_name) == 1 ) |
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624 env += SDL_strlen(env_name)+2; |
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625 else if ( SDL_sscanf(env, "%s", env_name) == 1 ) |
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626 env += SDL_strlen(env_name); |
|
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627 |
|
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628 if ( SDL_strcmp(name, env_name) == 0 ) { |
| 0 | 629 |
|
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630 if ( SDL_sscanf(env, "%d %d %d", &tmp_naxes, &tmp_nhats, |
|
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631 &tmp_nballs) == 3 ) { |
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632 |
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633 joystick->naxes = tmp_naxes; |
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634 joystick->nhats = tmp_nhats; |
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635 joystick->nballs = tmp_nballs; |
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636 |
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637 handled = SDL_TRUE; |
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638 } |
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639 } |
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640 } |
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641 |
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642 /* Remap hats and balls */ |
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643 if (handled) { |
| 0 | 644 if ( joystick->nhats > 0 ) { |
|
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645 if ( allocate_hatdata(joystick) < 0 ) { |
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646 joystick->nhats = 0; |
| 0 | 647 } |
| 648 } | |
| 649 if ( joystick->nballs > 0 ) { | |
| 650 if ( allocate_balldata(joystick) < 0 ) { | |
| 651 joystick->nballs = 0; | |
| 652 } | |
| 653 } | |
| 654 } | |
|
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655 |
| 0 | 656 return(handled); |
| 657 } | |
| 658 | |
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659 #if SDL_INPUT_LINUXEV |
| 0 | 660 |
| 661 static SDL_bool EV_ConfigJoystick(SDL_Joystick *joystick, int fd) | |
| 662 { | |
| 871 | 663 int i, t; |
| 0 | 664 unsigned long keybit[40]; |
| 665 unsigned long absbit[40]; | |
| 666 unsigned long relbit[40]; | |
| 667 | |
| 668 /* See if this device uses the new unified event API */ | |
| 669 if ( (ioctl(fd, EVIOCGBIT(EV_KEY, sizeof(keybit)), keybit) >= 0) && | |
| 670 (ioctl(fd, EVIOCGBIT(EV_ABS, sizeof(absbit)), absbit) >= 0) && | |
| 671 (ioctl(fd, EVIOCGBIT(EV_REL, sizeof(relbit)), relbit) >= 0) ) { | |
| 672 joystick->hwdata->is_hid = SDL_TRUE; | |
| 673 | |
| 674 /* Get the number of buttons, axes, and other thingamajigs */ | |
| 675 for ( i=BTN_JOYSTICK; i < KEY_MAX; ++i ) { | |
| 676 if ( test_bit(i, keybit) ) { | |
| 677 #ifdef DEBUG_INPUT_EVENTS | |
| 678 printf("Joystick has button: 0x%x\n", i); | |
| 679 #endif | |
| 680 joystick->hwdata->key_map[i-BTN_MISC] = | |
| 681 joystick->nbuttons; | |
| 682 ++joystick->nbuttons; | |
| 683 } | |
| 684 } | |
| 685 for ( i=BTN_MISC; i < BTN_JOYSTICK; ++i ) { | |
| 686 if ( test_bit(i, keybit) ) { | |
| 687 #ifdef DEBUG_INPUT_EVENTS | |
| 688 printf("Joystick has button: 0x%x\n", i); | |
| 689 #endif | |
| 690 joystick->hwdata->key_map[i-BTN_MISC] = | |
| 691 joystick->nbuttons; | |
| 692 ++joystick->nbuttons; | |
| 693 } | |
| 694 } | |
| 695 for ( i=0; i<ABS_MAX; ++i ) { | |
| 696 /* Skip hats */ | |
| 697 if ( i == ABS_HAT0X ) { | |
| 698 i = ABS_HAT3Y; | |
| 699 continue; | |
| 700 } | |
| 701 if ( test_bit(i, absbit) ) { | |
| 702 int values[5]; | |
| 703 | |
|
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704 if ( ioctl(fd, EVIOCGABS(i), values) < 0 ) |
|
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705 continue; |
| 0 | 706 #ifdef DEBUG_INPUT_EVENTS |
| 707 printf("Joystick has absolute axis: %x\n", i); | |
| 708 printf("Values = { %d, %d, %d, %d, %d }\n", | |
| 709 values[0], values[1], | |
| 710 values[2], values[3], values[4]); | |
| 711 #endif /* DEBUG_INPUT_EVENTS */ | |
| 712 joystick->hwdata->abs_map[i] = joystick->naxes; | |
| 713 if ( values[1] == values[2] ) { | |
| 714 joystick->hwdata->abs_correct[i].used = 0; | |
| 715 } else { | |
| 716 joystick->hwdata->abs_correct[i].used = 1; | |
|
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717 joystick->hwdata->abs_correct[i].coef[0] = |
|
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718 (values[2] + values[1]) / 2 - values[4]; |
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719 joystick->hwdata->abs_correct[i].coef[1] = |
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720 (values[2] + values[1]) / 2 + values[4]; |
| 871 | 721 t = ((values[2] - values[1]) / 2 - 2 * values[4]); |
| 722 if ( t != 0 ) { | |
| 723 joystick->hwdata->abs_correct[i].coef[2] = (1 << 29) / t; | |
|
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724 } else { |
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725 joystick->hwdata->abs_correct[i].coef[2] = 0; |
| 871 | 726 } |
| 0 | 727 } |
| 728 ++joystick->naxes; | |
| 729 } | |
| 730 } | |
| 731 for ( i=ABS_HAT0X; i <= ABS_HAT3Y; i += 2 ) { | |
| 732 if ( test_bit(i, absbit) || test_bit(i+1, absbit) ) { | |
| 733 #ifdef DEBUG_INPUT_EVENTS | |
| 734 printf("Joystick has hat %d\n",(i-ABS_HAT0X)/2); | |
| 735 #endif | |
| 736 ++joystick->nhats; | |
| 737 } | |
| 738 } | |
| 739 if ( test_bit(REL_X, relbit) || test_bit(REL_Y, relbit) ) { | |
| 740 ++joystick->nballs; | |
| 741 } | |
| 742 | |
| 743 /* Allocate data to keep track of these thingamajigs */ | |
| 744 if ( joystick->nhats > 0 ) { | |
| 745 if ( allocate_hatdata(joystick) < 0 ) { | |
| 746 joystick->nhats = 0; | |
| 747 } | |
| 748 } | |
| 749 if ( joystick->nballs > 0 ) { | |
| 750 if ( allocate_balldata(joystick) < 0 ) { | |
| 751 joystick->nballs = 0; | |
| 752 } | |
| 753 } | |
| 754 } | |
| 755 return(joystick->hwdata->is_hid); | |
| 756 } | |
| 757 | |
|
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758 #endif /* SDL_INPUT_LINUXEV */ |
| 0 | 759 |
|
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760 #ifndef NO_LOGICAL_JOYSTICKS |
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761 static void ConfigLogicalJoystick(SDL_Joystick *joystick) |
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762 { |
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763 struct joystick_logical_layout* layout; |
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764 |
| 1551 | 765 layout = SDL_joylist[joystick->index].map->layout + |
|
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766 SDL_joylist[joystick->index].logicalno; |
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767 |
|
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768 joystick->nbuttons = layout->nbuttons; |
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769 joystick->nhats = layout->nhats; |
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770 joystick->naxes = layout->naxes; |
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771 joystick->nballs = layout->nballs; |
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772 } |
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773 #endif |
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774 |
|
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775 |
| 0 | 776 /* Function to open a joystick for use. |
| 777 The joystick to open is specified by the index field of the joystick. | |
| 778 This should fill the nbuttons and naxes fields of the joystick structure. | |
| 779 It returns 0, or -1 if there is an error. | |
| 780 */ | |
| 781 int SDL_SYS_JoystickOpen(SDL_Joystick *joystick) | |
| 782 { | |
| 783 int fd; | |
|
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784 SDL_logical_joydecl(int realindex); |
|
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785 SDL_logical_joydecl(SDL_Joystick *realjoy = NULL); |
| 0 | 786 |
| 787 /* Open the joystick and set the joystick file descriptor */ | |
|
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|
788 #ifndef NO_LOGICAL_JOYSTICKS |
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789 if (SDL_joylist[joystick->index].fname == NULL) { |
|
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790 SDL_joylist_head(realindex, joystick->index); |
|
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791 realjoy = SDL_JoystickOpen(realindex); |
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|
792 |
|
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793 if (realjoy == NULL) |
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794 return(-1); |
|
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|
795 |
|
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796 fd = realjoy->hwdata->fd; |
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797 |
|
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798 } else { |
|
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799 fd = open(SDL_joylist[joystick->index].fname, O_RDONLY, 0); |
|
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800 } |
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801 SDL_joylist[joystick->index].joy = joystick; |
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802 #else |
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803 fd = open(SDL_joylist[joystick->index].fname, O_RDONLY, 0); |
|
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804 #endif |
|
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|
805 |
| 0 | 806 if ( fd < 0 ) { |
| 807 SDL_SetError("Unable to open %s\n", | |
| 808 SDL_joylist[joystick->index]); | |
| 809 return(-1); | |
| 810 } | |
| 811 joystick->hwdata = (struct joystick_hwdata *) | |
|
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|
812 SDL_malloc(sizeof(*joystick->hwdata)); |
| 0 | 813 if ( joystick->hwdata == NULL ) { |
| 814 SDL_OutOfMemory(); | |
| 815 close(fd); | |
| 816 return(-1); | |
| 817 } | |
|
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|
818 SDL_memset(joystick->hwdata, 0, sizeof(*joystick->hwdata)); |
| 0 | 819 joystick->hwdata->fd = fd; |
| 820 | |
| 821 /* Set the joystick to non-blocking read mode */ | |
| 822 fcntl(fd, F_SETFL, O_NONBLOCK); | |
| 823 | |
| 824 /* Get the number of buttons and axes on the joystick */ | |
|
892
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825 #ifndef NO_LOGICAL_JOYSTICKS |
|
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|
826 if (realjoy) |
|
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|
827 ConfigLogicalJoystick(joystick); |
|
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828 else |
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829 #endif |
|
1361
19418e4422cb
New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents:
1358
diff
changeset
|
830 #if SDL_INPUT_LINUXEV |
| 0 | 831 if ( ! EV_ConfigJoystick(joystick, fd) ) |
| 832 #endif | |
|
554
38b1a98aeb11
Linux joystick cleanups from Alan Swanson
Sam Lantinga <slouken@libsdl.org>
parents:
408
diff
changeset
|
833 JS_ConfigJoystick(joystick, fd); |
|
38b1a98aeb11
Linux joystick cleanups from Alan Swanson
Sam Lantinga <slouken@libsdl.org>
parents:
408
diff
changeset
|
834 |
| 0 | 835 return(0); |
| 836 } | |
| 837 | |
|
892
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
838 #ifndef NO_LOGICAL_JOYSTICKS |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
839 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
840 static SDL_Joystick* FindLogicalJoystick( |
| 1551 | 841 SDL_Joystick *joystick, struct joystick_logical_mapping* v) |
|
892
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
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|
842 { |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
843 SDL_Joystick *logicaljoy; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
844 register int i; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
845 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
846 i = joystick->index; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
847 logicaljoy = NULL; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
848 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
849 /* get the fake joystick that will receive the event |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
850 */ |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
851 for(;;) { |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
852 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
853 if (SDL_joylist[i].logicalno == v->njoy) { |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
854 logicaljoy = SDL_joylist[i].joy; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
855 break; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
856 } |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
857 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
858 if (SDL_joylist[i].next == 0) |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
859 break; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
860 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
861 i = SDL_joylist[i].next; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
862 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
863 } |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
864 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
865 return logicaljoy; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
866 } |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
867 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
868 static int LogicalJoystickButton( |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
869 SDL_Joystick *joystick, Uint8 button, Uint8 state){ |
| 1551 | 870 struct joystick_logical_mapping* buttons; |
|
892
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
871 SDL_Joystick *logicaljoy = NULL; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
872 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
873 /* if there's no map then this is just a regular joystick |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
874 */ |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
875 if (SDL_joylist[joystick->index].map == NULL) |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
876 return 0; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
877 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
878 /* get the logical joystick that will receive the event |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
879 */ |
| 1551 | 880 buttons = SDL_joylist[joystick->index].map->buttonmap+button; |
|
892
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
881 logicaljoy = FindLogicalJoystick(joystick, buttons); |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
882 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
883 if (logicaljoy == NULL) |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
884 return 1; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
885 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
886 SDL_PrivateJoystickButton(logicaljoy, buttons->nthing, state); |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
887 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
888 return 1; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
889 } |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
890 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
891 static int LogicalJoystickAxis( |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
892 SDL_Joystick *joystick, Uint8 axis, Sint16 value) |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
893 { |
| 1551 | 894 struct joystick_logical_mapping* axes; |
|
892
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
895 SDL_Joystick *logicaljoy = NULL; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
896 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
897 /* if there's no map then this is just a regular joystick |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
898 */ |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
899 if (SDL_joylist[joystick->index].map == NULL) |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
900 return 0; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
901 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
902 /* get the logical joystick that will receive the event |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
903 */ |
| 1551 | 904 axes = SDL_joylist[joystick->index].map->axismap+axis; |
|
892
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
905 logicaljoy = FindLogicalJoystick(joystick, axes); |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
906 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
907 if (logicaljoy == NULL) |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
908 return 1; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
909 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
910 SDL_PrivateJoystickAxis(logicaljoy, axes->nthing, value); |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
911 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
912 return 1; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
913 } |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
914 #endif /* USE_LOGICAL_JOYSTICKS */ |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
915 |
| 0 | 916 static __inline__ |
| 917 void HandleHat(SDL_Joystick *stick, Uint8 hat, int axis, int value) | |
| 918 { | |
| 919 struct hwdata_hat *the_hat; | |
| 920 const Uint8 position_map[3][3] = { | |
| 921 { SDL_HAT_LEFTUP, SDL_HAT_UP, SDL_HAT_RIGHTUP }, | |
| 922 { SDL_HAT_LEFT, SDL_HAT_CENTERED, SDL_HAT_RIGHT }, | |
| 923 { SDL_HAT_LEFTDOWN, SDL_HAT_DOWN, SDL_HAT_RIGHTDOWN } | |
| 924 }; | |
|
892
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
925 SDL_logical_joydecl(SDL_Joystick *logicaljoy = NULL); |
| 1551 | 926 SDL_logical_joydecl(struct joystick_logical_mapping* hats = NULL); |
| 0 | 927 |
| 928 the_hat = &stick->hwdata->hats[hat]; | |
| 929 if ( value < 0 ) { | |
| 930 value = 0; | |
| 931 } else | |
| 932 if ( value == 0 ) { | |
| 933 value = 1; | |
| 934 } else | |
| 935 if ( value > 0 ) { | |
| 936 value = 2; | |
| 937 } | |
| 938 if ( value != the_hat->axis[axis] ) { | |
| 939 the_hat->axis[axis] = value; | |
|
892
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
940 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
941 #ifndef NO_LOGICAL_JOYSTICKS |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
942 /* if there's no map then this is just a regular joystick |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
943 */ |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
944 if (SDL_joylist[stick->index].map != NULL) { |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
945 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
946 /* get the fake joystick that will receive the event |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
947 */ |
| 1551 | 948 hats = SDL_joylist[stick->index].map->hatmap+hat; |
|
892
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
949 logicaljoy = FindLogicalJoystick(stick, hats); |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
950 } |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
951 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
952 if (logicaljoy) { |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
953 stick = logicaljoy; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
954 hat = hats->nthing; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
955 } |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
956 #endif /* USE_LOGICAL_JOYSTICKS */ |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
957 |
| 0 | 958 SDL_PrivateJoystickHat(stick, hat, |
| 959 position_map[the_hat->axis[1]][the_hat->axis[0]]); | |
| 960 } | |
| 961 } | |
| 962 | |
| 963 static __inline__ | |
| 964 void HandleBall(SDL_Joystick *stick, Uint8 ball, int axis, int value) | |
| 965 { | |
| 966 stick->hwdata->balls[ball].axis[axis] += value; | |
| 967 } | |
| 968 | |
| 969 /* Function to update the state of a joystick - called as a device poll. | |
| 970 * This function shouldn't update the joystick structure directly, | |
| 971 * but instead should call SDL_PrivateJoystick*() to deliver events | |
| 972 * and update joystick device state. | |
| 973 */ | |
| 974 static __inline__ void JS_HandleEvents(SDL_Joystick *joystick) | |
| 975 { | |
| 976 struct js_event events[32]; | |
| 977 int i, len; | |
| 978 Uint8 other_axis; | |
| 979 | |
|
892
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
980 #ifndef NO_LOGICAL_JOYSTICKS |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
981 if (SDL_joylist[joystick->index].fname == NULL) { |
|
dc29e5907694
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982 SDL_joylist_head(i, joystick->index); |
|
1752
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983 JS_HandleEvents(SDL_joylist[i].joy); |
|
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984 return; |
|
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985 } |
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986 #endif |
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987 |
| 0 | 988 while ((len=read(joystick->hwdata->fd, events, (sizeof events))) > 0) { |
| 989 len /= sizeof(events[0]); | |
| 990 for ( i=0; i<len; ++i ) { | |
| 991 switch (events[i].type & ~JS_EVENT_INIT) { | |
| 992 case JS_EVENT_AXIS: | |
| 993 if ( events[i].number < joystick->naxes ) { | |
|
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994 #ifndef NO_LOGICAL_JOYSTICKS |
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995 if (!LogicalJoystickAxis(joystick, |
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996 events[i].number, events[i].value)) |
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997 #endif |
| 0 | 998 SDL_PrivateJoystickAxis(joystick, |
| 999 events[i].number, events[i].value); | |
| 1000 break; | |
| 1001 } | |
| 1002 events[i].number -= joystick->naxes; | |
|
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1003 other_axis = (events[i].number / 2); |
|
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Removed obsolete Linux joystick code
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1004 if ( other_axis < joystick->nhats ) { |
|
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Removed obsolete Linux joystick code
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1005 HandleHat(joystick, other_axis, |
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1006 events[i].number%2, |
|
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Removed obsolete Linux joystick code
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1007 events[i].value); |
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1008 break; |
| 0 | 1009 } |
| 1010 events[i].number -= joystick->nhats*2; | |
| 1011 other_axis = (events[i].number / 2); | |
| 1012 if ( other_axis < joystick->nballs ) { | |
| 1013 HandleBall(joystick, other_axis, | |
| 1014 events[i].number%2, | |
| 1015 events[i].value); | |
| 1016 break; | |
| 1017 } | |
| 1018 break; | |
| 1019 case JS_EVENT_BUTTON: | |
|
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1020 #ifndef NO_LOGICAL_JOYSTICKS |
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1021 if (!LogicalJoystickButton(joystick, |
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1022 events[i].number, events[i].value)) |
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1023 #endif |
| 0 | 1024 SDL_PrivateJoystickButton(joystick, |
| 1025 events[i].number, events[i].value); | |
| 1026 break; | |
| 1027 default: | |
| 1028 /* ?? */ | |
| 1029 break; | |
| 1030 } | |
| 1031 } | |
| 1032 } | |
| 1033 } | |
|
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1034 #if SDL_INPUT_LINUXEV |
| 0 | 1035 static __inline__ int EV_AxisCorrect(SDL_Joystick *joystick, int which, int value) |
| 1036 { | |
| 1037 struct axis_correct *correct; | |
| 1038 | |
| 1039 correct = &joystick->hwdata->abs_correct[which]; | |
| 1040 if ( correct->used ) { | |
| 1041 if ( value > correct->coef[0] ) { | |
| 1042 if ( value < correct->coef[1] ) { | |
| 1043 return 0; | |
| 1044 } | |
| 1045 value -= correct->coef[1]; | |
| 1046 } else { | |
| 1047 value -= correct->coef[0]; | |
| 1048 } | |
| 1049 value *= correct->coef[2]; | |
| 1050 value >>= 14; | |
| 1051 } | |
|
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1052 |
| 0 | 1053 /* Clamp and return */ |
| 1275 | 1054 if ( value < -32768 ) return -32768; |
|
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1055 if ( value > 32767 ) return 32767; |
|
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1056 |
| 0 | 1057 return value; |
| 1058 } | |
| 1059 | |
| 1060 static __inline__ void EV_HandleEvents(SDL_Joystick *joystick) | |
| 1061 { | |
| 1062 struct input_event events[32]; | |
| 1063 int i, len; | |
| 1064 int code; | |
| 1065 | |
|
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1066 #ifndef NO_LOGICAL_JOYSTICKS |
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1067 if (SDL_joylist[joystick->index].fname == NULL) { |
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1068 SDL_joylist_head(i, joystick->index); |
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1069 return EV_HandleEvents(SDL_joylist[i].joy); |
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1070 } |
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1071 #endif |
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1072 |
| 0 | 1073 while ((len=read(joystick->hwdata->fd, events, (sizeof events))) > 0) { |
| 1074 len /= sizeof(events[0]); | |
| 1075 for ( i=0; i<len; ++i ) { | |
| 1076 code = events[i].code; | |
| 1077 switch (events[i].type) { | |
| 1078 case EV_KEY: | |
| 1079 if ( code >= BTN_MISC ) { | |
| 1080 code -= BTN_MISC; | |
|
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1081 #ifndef NO_LOGICAL_JOYSTICKS |
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1082 if (!LogicalJoystickButton(joystick, |
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1083 joystick->hwdata->key_map[code], |
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1084 events[i].value)) |
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Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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1085 #endif |
| 0 | 1086 SDL_PrivateJoystickButton(joystick, |
| 1087 joystick->hwdata->key_map[code], | |
| 1088 events[i].value); | |
| 1089 } | |
| 1090 break; | |
| 1091 case EV_ABS: | |
| 1092 switch (code) { | |
| 1093 case ABS_HAT0X: | |
| 1094 case ABS_HAT0Y: | |
| 1095 case ABS_HAT1X: | |
| 1096 case ABS_HAT1Y: | |
| 1097 case ABS_HAT2X: | |
| 1098 case ABS_HAT2Y: | |
| 1099 case ABS_HAT3X: | |
| 1100 case ABS_HAT3Y: | |
| 1101 code -= ABS_HAT0X; | |
| 1102 HandleHat(joystick, code/2, code%2, | |
| 1103 events[i].value); | |
| 1104 break; | |
| 1105 default: | |
| 1106 events[i].value = EV_AxisCorrect(joystick, code, events[i].value); | |
|
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1107 #ifndef NO_LOGICAL_JOYSTICKS |
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1108 if (!LogicalJoystickAxis(joystick, |
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1109 joystick->hwdata->abs_map[code], |
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1110 events[i].value)) |
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1111 #endif |
| 0 | 1112 SDL_PrivateJoystickAxis(joystick, |
| 1113 joystick->hwdata->abs_map[code], | |
| 1114 events[i].value); | |
| 1115 break; | |
| 1116 } | |
| 1117 break; | |
| 1118 case EV_REL: | |
| 1119 switch (code) { | |
| 1120 case REL_X: | |
| 1121 case REL_Y: | |
| 1122 code -= REL_X; | |
| 1123 HandleBall(joystick, code/2, code%2, | |
| 1124 events[i].value); | |
| 1125 break; | |
| 1126 default: | |
| 1127 break; | |
| 1128 } | |
| 1129 break; | |
| 1130 default: | |
| 1131 break; | |
| 1132 } | |
| 1133 } | |
| 1134 } | |
| 1135 } | |
|
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1136 #endif /* SDL_INPUT_LINUXEV */ |
| 0 | 1137 |
| 1138 void SDL_SYS_JoystickUpdate(SDL_Joystick *joystick) | |
| 1139 { | |
| 1140 int i; | |
| 1141 | |
|
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1142 #if SDL_INPUT_LINUXEV |
| 0 | 1143 if ( joystick->hwdata->is_hid ) |
| 1144 EV_HandleEvents(joystick); | |
| 1145 else | |
| 1146 #endif | |
| 1147 JS_HandleEvents(joystick); | |
| 1148 | |
| 1149 /* Deliver ball motion updates */ | |
| 1150 for ( i=0; i<joystick->nballs; ++i ) { | |
| 1151 int xrel, yrel; | |
| 1152 | |
| 1153 xrel = joystick->hwdata->balls[i].axis[0]; | |
| 1154 yrel = joystick->hwdata->balls[i].axis[1]; | |
| 1155 if ( xrel || yrel ) { | |
| 1156 joystick->hwdata->balls[i].axis[0] = 0; | |
| 1157 joystick->hwdata->balls[i].axis[1] = 0; | |
| 1158 SDL_PrivateJoystickBall(joystick, (Uint8)i, xrel, yrel); | |
| 1159 } | |
| 1160 } | |
| 1161 } | |
| 1162 | |
| 1163 /* Function to close a joystick after use */ | |
| 1164 void SDL_SYS_JoystickClose(SDL_Joystick *joystick) | |
| 1165 { | |
|
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1166 #ifndef NO_LOGICAL_JOYSTICKS |
|
dc29e5907694
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|
1167 register int i; |
|
dc29e5907694
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1168 if (SDL_joylist[joystick->index].fname == NULL) { |
|
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1169 SDL_joylist_head(i, joystick->index); |
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1170 SDL_JoystickClose(SDL_joylist[i].joy); |
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1171 } |
|
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1172 #endif |
|
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1173 |
| 0 | 1174 if ( joystick->hwdata ) { |
|
892
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1175 #ifndef NO_LOGICAL_JOYSTICKS |
|
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1176 if (SDL_joylist[joystick->index].fname != NULL) |
|
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1177 #endif |
| 0 | 1178 close(joystick->hwdata->fd); |
| 1179 if ( joystick->hwdata->hats ) { | |
|
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1180 SDL_free(joystick->hwdata->hats); |
| 0 | 1181 } |
| 1182 if ( joystick->hwdata->balls ) { | |
|
1336
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Use SDL_ prefixed versions of C library functions.
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|
1183 SDL_free(joystick->hwdata->balls); |
| 0 | 1184 } |
|
1336
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Use SDL_ prefixed versions of C library functions.
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|
1185 SDL_free(joystick->hwdata); |
| 0 | 1186 joystick->hwdata = NULL; |
| 1187 } | |
| 1188 } | |
| 1189 | |
| 1190 /* Function to perform any system-specific joystick related cleanup */ | |
| 1191 void SDL_SYS_JoystickQuit(void) | |
| 1192 { | |
| 1193 int i; | |
| 1194 | |
|
892
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|
1195 for ( i=0; SDL_joylist[i].fname; ++i ) { |
|
1336
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Use SDL_ prefixed versions of C library functions.
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1196 SDL_free(SDL_joylist[i].fname); |
| 0 | 1197 } |
|
892
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1198 SDL_joylist[0].fname = NULL; |
| 0 | 1199 } |
| 1200 | |
|
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1201 #endif /* SDL_JOYSTICK_LINUX */ |