Mercurial > sdl-ios-xcode
annotate src/joystick/linux/SDL_sysjoystick.c @ 1275:4aa02c3e5e13
Fixed to match the docs
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Fri, 27 Jan 2006 06:36:33 +0000 |
| parents | cb5e1d0cad31 |
| children | 94643e9bad18 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
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3 Copyright (C) 1997-2004 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
| 6 modify it under the terms of the GNU Library General Public | |
| 7 License as published by the Free Software Foundation; either | |
| 8 version 2 of the License, or (at your option) any later version. | |
| 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 | |
| 13 Library General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU Library General Public | |
| 16 License along with this library; if not, write to the Free | |
| 17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 18 | |
| 19 Sam Lantinga | |
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20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 #ifdef SAVE_RCSID | |
| 24 static char rcsid = | |
| 25 "@(#) $Id$"; | |
| 26 #endif | |
| 27 | |
| 28 /* This is the system specific header for the SDL joystick API */ | |
| 29 | |
| 30 #include <stdio.h> /* For the definition of NULL */ | |
| 31 #include <stdlib.h> /* For getenv() prototype */ | |
| 32 #include <string.h> | |
| 33 #include <sys/stat.h> | |
| 34 #include <unistd.h> | |
| 35 #include <fcntl.h> | |
| 36 #include <sys/ioctl.h> | |
| 37 #include <limits.h> /* For the definition of PATH_MAX */ | |
|
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38 #ifdef __arm__ |
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39 #include <linux/limits.h> /* Arm cross-compiler needs this */ |
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40 #endif |
| 0 | 41 #include <linux/joystick.h> |
| 42 #ifdef USE_INPUT_EVENTS | |
| 43 #include <linux/input.h> | |
| 44 #endif | |
| 45 | |
| 46 #include "SDL_error.h" | |
| 47 #include "SDL_joystick.h" | |
| 48 #include "SDL_sysjoystick.h" | |
| 49 #include "SDL_joystick_c.h" | |
| 50 | |
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51 /* Special joystick configurations */ |
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52 static struct { |
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53 const char *name; |
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54 int naxes; |
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55 int nhats; |
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56 int nballs; |
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57 } special_joysticks[] = { |
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58 { "MadCatz Panther XL", 3, 2, 1 }, /* We don't handle rudder (axis 8) */ |
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59 { "SideWinder Precision Pro", 4, 1, 0 }, |
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60 { "SideWinder 3D Pro", 4, 1, 0 }, |
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61 { "Microsoft SideWinder 3D Pro", 4, 1, 0 }, |
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62 { "Microsoft SideWinder Dual Strike USB version 1.0", 2, 1, 0 }, |
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63 { "WingMan Interceptor", 3, 3, 0 }, |
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64 { "WingMan Extreme Digital 3D", 4, 1, 0 }, |
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65 { "Microsoft SideWinder Precision 2 Joystick", 4, 1, 0 }, |
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66 { "Logitech Inc. WingMan Extreme Digital 3D", 4, 1, 0 }, |
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67 { "Saitek Saitek X45", 6, 1, 0 } |
| 0 | 68 }; |
| 69 | |
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70 #ifndef NO_LOGICAL_JOYSTICKS |
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71 |
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72 static struct joystick_logical_values { |
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73 int njoy; |
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74 int nthing; |
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75 } joystick_logical_values[] = { |
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76 |
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77 /* +0 */ |
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78 /* MP-8800 axes map - map to {logical joystick #, logical axis #} */ |
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79 {0,0},{0,1},{0,2},{1,0},{1,1},{0,3},{1,2},{1,3},{2,0},{2,1},{2,2},{2,3}, |
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80 {3,0},{3,1},{3,2},{3,3},{0,4},{1,4},{2,4}, |
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81 |
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82 /* +19 */ |
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83 /* MP-8800 hat map - map to {logical joystick #, logical hat #} */ |
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84 {0,0},{1,0},{2,0},{3,0}, |
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85 |
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86 /* +23 */ |
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87 /* MP-8800 button map - map to {logical joystick #, logical button #} */ |
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88 {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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89 {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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90 {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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91 {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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92 }; |
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93 |
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94 static struct joystick_logical_layout { |
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95 int naxes; |
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96 int nhats; |
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97 int nballs; |
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98 int nbuttons; |
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99 } joystick_logical_layout[] = { |
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100 /* MP-8800 logical layout */ |
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101 {5, 1, 0, 12}, |
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102 {5, 1, 0, 12}, |
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103 {5, 1, 0, 12}, |
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104 {4, 1, 0, 12} |
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105 }; |
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106 |
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107 /* |
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108 Some USB HIDs show up as a single joystick even though they actually |
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109 control 2 or more joysticks. This array sets up a means of mapping |
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110 a single physical joystick to multiple logical joysticks. (djm) |
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111 |
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112 njoys |
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113 the number of logical joysticks |
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114 |
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115 layouts |
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116 an array of layout structures, one to describe each logical joystick |
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117 |
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118 axes, hats, balls, buttons |
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119 arrays that map a physical thingy to a logical thingy |
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120 */ |
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121 static struct joystick_logicalmap { |
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122 const char *name; |
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123 int njoys; |
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124 struct joystick_logical_layout *layouts; |
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125 struct joystick_logical_values *axes; |
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126 struct joystick_logical_values *hats; |
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127 struct joystick_logical_values *balls; |
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128 struct joystick_logical_values *buttons; |
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129 |
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130 } joystick_logicalmap[] = { |
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131 {"WiseGroup.,Ltd MP-8800 Quad USB Joypad", 4, joystick_logical_layout, |
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132 joystick_logical_values, joystick_logical_values+19, NULL, |
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133 joystick_logical_values+23} |
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134 }; |
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135 |
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136 /* find the head of a linked list, given a point in it |
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137 */ |
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138 #define SDL_joylist_head(i, start)\ |
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139 for(i = start; SDL_joylist[i].fname == NULL;) i = SDL_joylist[i].prev; |
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140 |
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141 #define SDL_logical_joydecl(d) d |
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142 |
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143 |
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144 #else |
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145 |
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146 #define SDL_logical_joydecl(d) |
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147 |
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148 #endif /* USE_LOGICAL_JOYSTICKS */ |
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149 |
| 0 | 150 /* The maximum number of joysticks we'll detect */ |
| 151 #define MAX_JOYSTICKS 32 | |
| 152 | |
| 153 /* A list of available joysticks */ | |
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154 static struct |
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155 { |
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156 char* fname; |
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157 #ifndef NO_LOGICAL_JOYSTICKS |
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158 SDL_Joystick* joy; |
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159 struct joystick_logicalmap* map; |
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160 int prev; |
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161 int next; |
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162 int logicalno; |
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163 #endif /* USE_LOGICAL_JOYSTICKS */ |
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164 } SDL_joylist[MAX_JOYSTICKS]; |
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165 |
| 0 | 166 |
| 167 /* The private structure used to keep track of a joystick */ | |
| 168 struct joystick_hwdata { | |
| 169 int fd; | |
| 170 /* The current linux joystick driver maps hats to two axes */ | |
| 171 struct hwdata_hat { | |
| 172 int axis[2]; | |
| 173 } *hats; | |
| 174 /* The current linux joystick driver maps balls to two axes */ | |
| 175 struct hwdata_ball { | |
| 176 int axis[2]; | |
| 177 } *balls; | |
| 178 | |
| 179 /* Support for the Linux 2.4 unified input interface */ | |
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180 #ifdef USE_INPUT_EVENTS |
| 0 | 181 SDL_bool is_hid; |
| 182 Uint8 key_map[KEY_MAX-BTN_MISC]; | |
| 183 Uint8 abs_map[ABS_MAX]; | |
| 184 struct axis_correct { | |
| 185 int used; | |
| 186 int coef[3]; | |
| 187 } abs_correct[ABS_MAX]; | |
| 188 #endif | |
| 189 }; | |
| 190 | |
| 191 static char *mystrdup(const char *string) | |
| 192 { | |
| 193 char *newstring; | |
| 194 | |
| 195 newstring = (char *)malloc(strlen(string)+1); | |
| 196 if ( newstring ) { | |
| 197 strcpy(newstring, string); | |
| 198 } | |
| 199 return(newstring); | |
| 200 } | |
| 201 | |
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202 |
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203 #ifndef NO_LOGICAL_JOYSTICKS |
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204 |
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205 static int CountLogicalJoysticks(int max) |
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206 { |
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207 register int i, j, k, ret, prev; |
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208 const char* name; |
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209 |
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210 ret = 0; |
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211 |
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212 for(i = 0; i < max; i++) { |
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213 name = SDL_SYS_JoystickName(i); |
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214 |
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215 if (name) { |
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216 for(j = 0; j < SDL_TABLESIZE(joystick_logicalmap); j++) { |
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217 if (!strcmp(name, joystick_logicalmap[j].name)) { |
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218 |
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219 prev = i; |
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220 SDL_joylist[prev].map = joystick_logicalmap+j; |
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221 |
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222 for(k = 1; k < joystick_logicalmap[j].njoys; k++) { |
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223 SDL_joylist[prev].next = max + ret; |
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224 |
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225 if (prev != i) |
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226 SDL_joylist[max+ret].prev = prev; |
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227 |
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228 prev = max + ret; |
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229 SDL_joylist[prev].logicalno = k; |
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230 SDL_joylist[prev].map = joystick_logicalmap+j; |
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231 ret++; |
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232 } |
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233 |
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234 break; |
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235 } |
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236 } |
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237 } |
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238 } |
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239 |
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240 return ret; |
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241 } |
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242 |
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243 static void LogicalSuffix(int logicalno, char* namebuf, int len) |
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244 { |
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245 register int slen; |
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246 const static char suffixs[] = |
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247 "01020304050607080910111213141516171819" |
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248 "20212223242526272829303132"; |
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249 const char* suffix; |
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250 |
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251 slen = strlen(namebuf); |
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252 |
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253 suffix = NULL; |
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254 |
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255 if (logicalno*2<sizeof(suffixs)) |
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256 suffix = suffixs + (logicalno*2); |
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257 |
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258 if (slen + 4 < len && suffix) { |
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259 namebuf[slen++] = ' '; |
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260 namebuf[slen++] = '#'; |
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261 namebuf[slen++] = suffix[0]; |
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262 namebuf[slen++] = suffix[1]; |
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263 namebuf[slen++] = 0; |
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264 } |
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265 } |
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266 |
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267 #endif /* USE_LOGICAL_JOYSTICKS */ |
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268 |
| 0 | 269 #ifdef USE_INPUT_EVENTS |
| 270 #define test_bit(nr, addr) \ | |
| 271 (((1UL << ((nr) & 31)) & (((const unsigned int *) addr)[(nr) >> 5])) != 0) | |
| 272 | |
| 273 static int EV_IsJoystick(int fd) | |
| 274 { | |
| 275 unsigned long evbit[40]; | |
| 276 unsigned long keybit[40]; | |
| 277 unsigned long absbit[40]; | |
| 278 | |
| 279 if ( (ioctl(fd, EVIOCGBIT(0, sizeof(evbit)), evbit) < 0) || | |
| 280 (ioctl(fd, EVIOCGBIT(EV_KEY, sizeof(keybit)), keybit) < 0) || | |
| 281 (ioctl(fd, EVIOCGBIT(EV_ABS, sizeof(absbit)), absbit) < 0) ) { | |
| 282 return(0); | |
| 283 } | |
| 284 if (!(test_bit(EV_KEY, evbit) && test_bit(EV_ABS, evbit) && | |
| 285 test_bit(ABS_X, absbit) && test_bit(ABS_Y, absbit) && | |
| 286 (test_bit(BTN_TRIGGER, keybit) || test_bit(BTN_A, keybit) || test_bit(BTN_1, keybit)))) return 0; | |
| 287 return(1); | |
| 288 } | |
| 289 | |
| 290 #endif /* USE_INPUT_EVENTS */ | |
| 291 | |
| 292 /* Function to scan the system for joysticks */ | |
| 293 int SDL_SYS_JoystickInit(void) | |
| 294 { | |
| 295 /* The base path of the joystick devices */ | |
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245
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296 const char *joydev_pattern[] = { |
| 0 | 297 #ifdef USE_INPUT_EVENTS |
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245
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298 "/dev/input/event%d", |
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211
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299 #endif |
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300 "/dev/input/js%d", |
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301 "/dev/js%d" |
| 0 | 302 }; |
| 303 int numjoysticks; | |
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304 int i, j; |
| 0 | 305 int fd; |
| 306 char path[PATH_MAX]; | |
| 307 dev_t dev_nums[MAX_JOYSTICKS]; /* major/minor device numbers */ | |
| 308 struct stat sb; | |
| 309 int n, duplicate; | |
| 310 | |
| 311 numjoysticks = 0; | |
| 312 | |
| 313 /* First see if the user specified a joystick to use */ | |
| 314 if ( getenv("SDL_JOYSTICK_DEVICE") != NULL ) { | |
| 315 strncpy(path, getenv("SDL_JOYSTICK_DEVICE"), sizeof(path)); | |
| 316 path[sizeof(path)-1] = '\0'; | |
| 317 if ( stat(path, &sb) == 0 ) { | |
| 318 fd = open(path, O_RDONLY, 0); | |
| 319 if ( fd >= 0 ) { | |
| 320 /* Assume the user knows what they're doing. */ | |
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321 SDL_joylist[numjoysticks].fname =mystrdup(path); |
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322 if ( SDL_joylist[numjoysticks].fname ) { |
| 0 | 323 dev_nums[numjoysticks] = sb.st_rdev; |
| 324 ++numjoysticks; | |
| 325 } | |
| 326 close(fd); | |
| 327 } | |
| 328 } | |
| 329 } | |
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330 |
| 0 | 331 for ( i=0; i<SDL_TABLESIZE(joydev_pattern); ++i ) { |
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332 for ( j=0; j < MAX_JOYSTICKS; ++j ) { |
| 0 | 333 sprintf(path, joydev_pattern[i], j); |
| 334 | |
| 335 /* rcg06302000 replaced access(F_OK) call with stat(). | |
| 336 * stat() will fail if the file doesn't exist, so it's | |
| 337 * equivalent behaviour. | |
| 338 */ | |
| 339 if ( stat(path, &sb) == 0 ) { | |
| 340 /* Check to make sure it's not already in list. | |
| 341 * This happens when we see a stick via symlink. | |
| 342 */ | |
| 343 duplicate = 0; | |
| 344 for (n=0; (n<numjoysticks) && !duplicate; ++n) { | |
| 345 if ( sb.st_rdev == dev_nums[n] ) { | |
| 346 duplicate = 1; | |
| 347 } | |
| 348 } | |
| 349 if (duplicate) { | |
| 350 continue; | |
| 351 } | |
| 352 | |
| 353 fd = open(path, O_RDONLY, 0); | |
| 354 if ( fd < 0 ) { | |
| 355 continue; | |
| 356 } | |
| 357 #ifdef USE_INPUT_EVENTS | |
| 358 #ifdef DEBUG_INPUT_EVENTS | |
| 359 printf("Checking %s\n", path); | |
| 360 #endif | |
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361 if ( (i == 0) && ! EV_IsJoystick(fd) ) { |
| 0 | 362 close(fd); |
| 363 continue; | |
| 364 } | |
| 365 #endif | |
| 366 close(fd); | |
| 367 | |
| 368 /* We're fine, add this joystick */ | |
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369 SDL_joylist[numjoysticks].fname =mystrdup(path); |
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370 if ( SDL_joylist[numjoysticks].fname ) { |
| 0 | 371 dev_nums[numjoysticks] = sb.st_rdev; |
| 372 ++numjoysticks; | |
| 373 } | |
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374 } else |
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375 break; |
| 0 | 376 } |
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377 |
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378 #ifdef USE_INPUT_EVENTS |
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379 /* This is a special case... |
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380 If the event devices are valid then the joystick devices |
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381 will be duplicates but without extra information about their |
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382 hats or balls. Unfortunately, the event devices can't |
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383 currently be calibrated, so it's a win-lose situation. |
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384 So : /dev/input/eventX = /dev/input/jsY = /dev/jsY |
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385 */ |
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386 if ( (i == 0) && (numjoysticks > 0) ) |
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387 break; |
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388 #endif |
| 0 | 389 } |
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390 #ifndef NO_LOGICAL_JOYSTICKS |
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391 numjoysticks += CountLogicalJoysticks(numjoysticks); |
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392 #endif |
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393 |
| 0 | 394 return(numjoysticks); |
| 395 } | |
| 396 | |
| 397 /* Function to get the device-dependent name of a joystick */ | |
| 398 const char *SDL_SYS_JoystickName(int index) | |
| 399 { | |
| 400 int fd; | |
| 401 static char namebuf[128]; | |
| 402 char *name; | |
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403 SDL_logical_joydecl(int oindex = index); |
| 0 | 404 |
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405 #ifndef NO_LOGICAL_JOYSTICKS |
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406 SDL_joylist_head(index, index); |
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407 #endif |
| 0 | 408 name = NULL; |
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409 fd = open(SDL_joylist[index].fname, O_RDONLY, 0); |
| 0 | 410 if ( fd >= 0 ) { |
| 411 if ( | |
| 412 #ifdef USE_INPUT_EVENTS | |
| 413 (ioctl(fd, EVIOCGNAME(sizeof(namebuf)), namebuf) <= 0) && | |
| 414 #endif | |
| 415 (ioctl(fd, JSIOCGNAME(sizeof(namebuf)), namebuf) <= 0) ) { | |
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416 name = SDL_joylist[index].fname; |
| 0 | 417 } else { |
| 418 name = namebuf; | |
| 419 } | |
| 420 close(fd); | |
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421 |
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422 #ifndef NO_LOGICAL_JOYSTICKS |
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423 if (SDL_joylist[oindex].prev || SDL_joylist[oindex].next) |
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424 LogicalSuffix(SDL_joylist[oindex].logicalno, namebuf, 128); |
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425 #endif |
| 0 | 426 } |
| 427 return name; | |
| 428 } | |
| 429 | |
| 430 static int allocate_hatdata(SDL_Joystick *joystick) | |
| 431 { | |
| 432 int i; | |
| 433 | |
| 434 joystick->hwdata->hats = (struct hwdata_hat *)malloc( | |
| 435 joystick->nhats * sizeof(struct hwdata_hat)); | |
| 436 if ( joystick->hwdata->hats == NULL ) { | |
| 437 return(-1); | |
| 438 } | |
| 439 for ( i=0; i<joystick->nhats; ++i ) { | |
| 440 joystick->hwdata->hats[i].axis[0] = 1; | |
| 441 joystick->hwdata->hats[i].axis[1] = 1; | |
| 442 } | |
| 443 return(0); | |
| 444 } | |
| 445 | |
| 446 static int allocate_balldata(SDL_Joystick *joystick) | |
| 447 { | |
| 448 int i; | |
| 449 | |
| 450 joystick->hwdata->balls = (struct hwdata_ball *)malloc( | |
| 451 joystick->nballs * sizeof(struct hwdata_ball)); | |
| 452 if ( joystick->hwdata->balls == NULL ) { | |
| 453 return(-1); | |
| 454 } | |
| 455 for ( i=0; i<joystick->nballs; ++i ) { | |
| 456 joystick->hwdata->balls[i].axis[0] = 0; | |
| 457 joystick->hwdata->balls[i].axis[1] = 0; | |
| 458 } | |
| 459 return(0); | |
| 460 } | |
| 461 | |
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462 static SDL_bool JS_ConfigJoystick(SDL_Joystick *joystick, int fd) |
| 0 | 463 { |
| 464 SDL_bool handled; | |
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465 unsigned char n; |
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466 int old_axes, tmp_naxes, tmp_nhats, tmp_nballs; |
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467 const char *name; |
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468 char *env, env_name[128]; |
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469 int i; |
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470 |
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471 handled = SDL_FALSE; |
| 0 | 472 |
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473 /* Default joystick device settings */ |
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474 if ( ioctl(fd, JSIOCGAXES, &n) < 0 ) { |
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475 joystick->naxes = 2; |
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476 } else { |
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477 joystick->naxes = n; |
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478 } |
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479 if ( ioctl(fd, JSIOCGBUTTONS, &n) < 0 ) { |
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480 joystick->nbuttons = 2; |
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481 } else { |
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482 joystick->nbuttons = n; |
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483 } |
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484 |
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485 name = SDL_SYS_JoystickName(joystick->index); |
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486 old_axes = joystick->naxes; |
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487 |
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488 /* Generic analog joystick support */ |
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489 if ( strstr(name, "Analog") == name && strstr(name, "-hat") ) { |
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490 if ( sscanf(name,"Analog %d-axis %*d-button %d-hat", |
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491 &tmp_naxes, &tmp_nhats) == 2 ) { |
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492 |
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493 joystick->naxes = tmp_naxes; |
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494 joystick->nhats = tmp_nhats; |
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495 |
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496 handled = SDL_TRUE; |
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497 } |
| 0 | 498 } |
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499 |
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500 /* Special joystick support */ |
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501 for ( i=0; i < SDL_TABLESIZE(special_joysticks); ++i ) { |
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502 if ( strcmp(name, special_joysticks[i].name) == 0 ) { |
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503 |
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504 joystick->naxes = special_joysticks[i].naxes; |
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505 joystick->nhats = special_joysticks[i].nhats; |
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506 joystick->nballs = special_joysticks[i].nballs; |
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507 |
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508 handled = SDL_TRUE; |
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509 break; |
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510 } |
| 0 | 511 } |
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512 |
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513 /* User environment joystick support */ |
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514 if ( (env = getenv("SDL_LINUX_JOYSTICK")) ) { |
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515 strcpy(env_name, ""); |
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516 if ( *env == '\'' && sscanf(env, "'%[^']s'", env_name) == 1 ) |
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517 env += strlen(env_name)+2; |
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518 else if ( sscanf(env, "%s", env_name) == 1 ) |
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519 env += strlen(env_name); |
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520 |
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521 if ( strcmp(name, env_name) == 0 ) { |
| 0 | 522 |
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523 if ( sscanf(env, "%d %d %d", &tmp_naxes, &tmp_nhats, |
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524 &tmp_nballs) == 3 ) { |
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525 |
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526 joystick->naxes = tmp_naxes; |
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527 joystick->nhats = tmp_nhats; |
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528 joystick->nballs = tmp_nballs; |
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529 |
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530 handled = SDL_TRUE; |
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531 } |
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532 } |
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533 } |
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534 |
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535 /* Remap hats and balls */ |
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536 if (handled) { |
| 0 | 537 if ( joystick->nhats > 0 ) { |
|
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538 if ( allocate_hatdata(joystick) < 0 ) { |
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539 joystick->nhats = 0; |
| 0 | 540 } |
| 541 } | |
| 542 if ( joystick->nballs > 0 ) { | |
| 543 if ( allocate_balldata(joystick) < 0 ) { | |
| 544 joystick->nballs = 0; | |
| 545 } | |
| 546 } | |
| 547 } | |
|
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548 |
| 0 | 549 return(handled); |
| 550 } | |
| 551 | |
| 552 #ifdef USE_INPUT_EVENTS | |
| 553 | |
| 554 static SDL_bool EV_ConfigJoystick(SDL_Joystick *joystick, int fd) | |
| 555 { | |
| 871 | 556 int i, t; |
| 0 | 557 unsigned long keybit[40]; |
| 558 unsigned long absbit[40]; | |
| 559 unsigned long relbit[40]; | |
| 560 | |
| 561 /* See if this device uses the new unified event API */ | |
| 562 if ( (ioctl(fd, EVIOCGBIT(EV_KEY, sizeof(keybit)), keybit) >= 0) && | |
| 563 (ioctl(fd, EVIOCGBIT(EV_ABS, sizeof(absbit)), absbit) >= 0) && | |
| 564 (ioctl(fd, EVIOCGBIT(EV_REL, sizeof(relbit)), relbit) >= 0) ) { | |
| 565 joystick->hwdata->is_hid = SDL_TRUE; | |
| 566 | |
| 567 /* Get the number of buttons, axes, and other thingamajigs */ | |
| 568 for ( i=BTN_JOYSTICK; i < KEY_MAX; ++i ) { | |
| 569 if ( test_bit(i, keybit) ) { | |
| 570 #ifdef DEBUG_INPUT_EVENTS | |
| 571 printf("Joystick has button: 0x%x\n", i); | |
| 572 #endif | |
| 573 joystick->hwdata->key_map[i-BTN_MISC] = | |
| 574 joystick->nbuttons; | |
| 575 ++joystick->nbuttons; | |
| 576 } | |
| 577 } | |
| 578 for ( i=BTN_MISC; i < BTN_JOYSTICK; ++i ) { | |
| 579 if ( test_bit(i, keybit) ) { | |
| 580 #ifdef DEBUG_INPUT_EVENTS | |
| 581 printf("Joystick has button: 0x%x\n", i); | |
| 582 #endif | |
| 583 joystick->hwdata->key_map[i-BTN_MISC] = | |
| 584 joystick->nbuttons; | |
| 585 ++joystick->nbuttons; | |
| 586 } | |
| 587 } | |
| 588 for ( i=0; i<ABS_MAX; ++i ) { | |
| 589 /* Skip hats */ | |
| 590 if ( i == ABS_HAT0X ) { | |
| 591 i = ABS_HAT3Y; | |
| 592 continue; | |
| 593 } | |
| 594 if ( test_bit(i, absbit) ) { | |
| 595 int values[5]; | |
| 596 | |
|
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597 if ( ioctl(fd, EVIOCGABS(i), values) < 0 ) |
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598 continue; |
| 0 | 599 #ifdef DEBUG_INPUT_EVENTS |
| 600 printf("Joystick has absolute axis: %x\n", i); | |
| 601 printf("Values = { %d, %d, %d, %d, %d }\n", | |
| 602 values[0], values[1], | |
| 603 values[2], values[3], values[4]); | |
| 604 #endif /* DEBUG_INPUT_EVENTS */ | |
| 605 joystick->hwdata->abs_map[i] = joystick->naxes; | |
| 606 if ( values[1] == values[2] ) { | |
| 607 joystick->hwdata->abs_correct[i].used = 0; | |
| 608 } else { | |
| 609 joystick->hwdata->abs_correct[i].used = 1; | |
|
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610 joystick->hwdata->abs_correct[i].coef[0] = |
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611 (values[2] + values[1]) / 2 - values[4]; |
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612 joystick->hwdata->abs_correct[i].coef[1] = |
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613 (values[2] + values[1]) / 2 + values[4]; |
| 871 | 614 t = ((values[2] - values[1]) / 2 - 2 * values[4]); |
| 615 if ( t != 0 ) { | |
| 616 joystick->hwdata->abs_correct[i].coef[2] = (1 << 29) / t; | |
|
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617 } else { |
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618 joystick->hwdata->abs_correct[i].coef[2] = 0; |
| 871 | 619 } |
| 0 | 620 } |
| 621 ++joystick->naxes; | |
| 622 } | |
| 623 } | |
| 624 for ( i=ABS_HAT0X; i <= ABS_HAT3Y; i += 2 ) { | |
| 625 if ( test_bit(i, absbit) || test_bit(i+1, absbit) ) { | |
| 626 #ifdef DEBUG_INPUT_EVENTS | |
| 627 printf("Joystick has hat %d\n",(i-ABS_HAT0X)/2); | |
| 628 #endif | |
| 629 ++joystick->nhats; | |
| 630 } | |
| 631 } | |
| 632 if ( test_bit(REL_X, relbit) || test_bit(REL_Y, relbit) ) { | |
| 633 ++joystick->nballs; | |
| 634 } | |
| 635 | |
| 636 /* Allocate data to keep track of these thingamajigs */ | |
| 637 if ( joystick->nhats > 0 ) { | |
| 638 if ( allocate_hatdata(joystick) < 0 ) { | |
| 639 joystick->nhats = 0; | |
| 640 } | |
| 641 } | |
| 642 if ( joystick->nballs > 0 ) { | |
| 643 if ( allocate_balldata(joystick) < 0 ) { | |
| 644 joystick->nballs = 0; | |
| 645 } | |
| 646 } | |
| 647 } | |
| 648 return(joystick->hwdata->is_hid); | |
| 649 } | |
| 650 | |
| 651 #endif /* USE_INPUT_EVENTS */ | |
| 652 | |
|
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653 #ifndef NO_LOGICAL_JOYSTICKS |
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654 static void ConfigLogicalJoystick(SDL_Joystick *joystick) |
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655 { |
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656 struct joystick_logical_layout* layout; |
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657 |
|
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658 layout = SDL_joylist[joystick->index].map->layouts + |
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659 SDL_joylist[joystick->index].logicalno; |
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660 |
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661 joystick->nbuttons = layout->nbuttons; |
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662 joystick->nhats = layout->nhats; |
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663 joystick->naxes = layout->naxes; |
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664 joystick->nballs = layout->nballs; |
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665 } |
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666 #endif |
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667 |
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668 |
| 0 | 669 /* Function to open a joystick for use. |
| 670 The joystick to open is specified by the index field of the joystick. | |
| 671 This should fill the nbuttons and naxes fields of the joystick structure. | |
| 672 It returns 0, or -1 if there is an error. | |
| 673 */ | |
| 674 int SDL_SYS_JoystickOpen(SDL_Joystick *joystick) | |
| 675 { | |
| 676 int fd; | |
|
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677 SDL_logical_joydecl(int realindex); |
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678 SDL_logical_joydecl(SDL_Joystick *realjoy = NULL); |
| 0 | 679 |
| 680 /* Open the joystick and set the joystick file descriptor */ | |
|
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681 #ifndef NO_LOGICAL_JOYSTICKS |
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682 if (SDL_joylist[joystick->index].fname == NULL) { |
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683 SDL_joylist_head(realindex, joystick->index); |
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684 realjoy = SDL_JoystickOpen(realindex); |
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685 |
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686 if (realjoy == NULL) |
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687 return(-1); |
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688 |
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689 fd = realjoy->hwdata->fd; |
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690 |
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691 } else { |
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692 fd = open(SDL_joylist[joystick->index].fname, O_RDONLY, 0); |
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693 } |
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694 SDL_joylist[joystick->index].joy = joystick; |
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695 #else |
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696 fd = open(SDL_joylist[joystick->index].fname, O_RDONLY, 0); |
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697 #endif |
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698 |
| 0 | 699 if ( fd < 0 ) { |
| 700 SDL_SetError("Unable to open %s\n", | |
| 701 SDL_joylist[joystick->index]); | |
| 702 return(-1); | |
| 703 } | |
| 704 joystick->hwdata = (struct joystick_hwdata *) | |
| 705 malloc(sizeof(*joystick->hwdata)); | |
| 706 if ( joystick->hwdata == NULL ) { | |
| 707 SDL_OutOfMemory(); | |
| 708 close(fd); | |
| 709 return(-1); | |
| 710 } | |
| 711 memset(joystick->hwdata, 0, sizeof(*joystick->hwdata)); | |
| 712 joystick->hwdata->fd = fd; | |
| 713 | |
| 714 /* Set the joystick to non-blocking read mode */ | |
| 715 fcntl(fd, F_SETFL, O_NONBLOCK); | |
| 716 | |
| 717 /* Get the number of buttons and axes on the joystick */ | |
|
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718 #ifndef NO_LOGICAL_JOYSTICKS |
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719 if (realjoy) |
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720 ConfigLogicalJoystick(joystick); |
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721 else |
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722 #endif |
| 0 | 723 #ifdef USE_INPUT_EVENTS |
| 724 if ( ! EV_ConfigJoystick(joystick, fd) ) | |
| 725 #endif | |
|
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726 JS_ConfigJoystick(joystick, fd); |
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727 |
| 0 | 728 return(0); |
| 729 } | |
| 730 | |
|
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731 #ifndef NO_LOGICAL_JOYSTICKS |
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732 |
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733 static SDL_Joystick* FindLogicalJoystick( |
|
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734 SDL_Joystick *joystick, struct joystick_logical_values* v) |
|
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735 { |
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736 SDL_Joystick *logicaljoy; |
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737 register int i; |
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738 |
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739 i = joystick->index; |
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740 logicaljoy = NULL; |
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741 |
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742 /* get the fake joystick that will receive the event |
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changeset
|
743 */ |
|
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Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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parents:
872
diff
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|
744 for(;;) { |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
745 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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parents:
872
diff
changeset
|
746 if (SDL_joylist[i].logicalno == v->njoy) { |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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parents:
872
diff
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|
747 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
|
748 break; |
|
dc29e5907694
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parents:
872
diff
changeset
|
749 } |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
750 |
|
dc29e5907694
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Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
751 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
|
752 break; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
753 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
754 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
|
755 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
756 } |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
757 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
758 return logicaljoy; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
759 } |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
760 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
761 static int LogicalJoystickButton( |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
762 SDL_Joystick *joystick, Uint8 button, Uint8 state){ |
|
953
cb5e1d0cad31
Backing out new changes, at Chris Nelson's request.
Sam Lantinga <slouken@libsdl.org>
parents:
914
diff
changeset
|
763 struct joystick_logical_values* buttons; |
|
892
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
764 SDL_Joystick *logicaljoy = NULL; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
765 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
766 /* 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
|
767 */ |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
768 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
|
769 return 0; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
770 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
771 /* 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
|
772 */ |
|
953
cb5e1d0cad31
Backing out new changes, at Chris Nelson's request.
Sam Lantinga <slouken@libsdl.org>
parents:
914
diff
changeset
|
773 buttons = SDL_joylist[joystick->index].map->buttons+button; |
|
892
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Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
774 logicaljoy = FindLogicalJoystick(joystick, buttons); |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
775 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
776 if (logicaljoy == NULL) |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
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|
777 return 1; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
778 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
779 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
|
780 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
781 return 1; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
782 } |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
783 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
784 static int LogicalJoystickAxis( |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
785 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
|
786 { |
|
953
cb5e1d0cad31
Backing out new changes, at Chris Nelson's request.
Sam Lantinga <slouken@libsdl.org>
parents:
914
diff
changeset
|
787 struct joystick_logical_values* axes; |
|
892
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Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
788 SDL_Joystick *logicaljoy = NULL; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
789 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
790 /* if there's no map then this is just a regular joystick |
|
dc29e5907694
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Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
791 */ |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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parents:
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diff
changeset
|
792 if (SDL_joylist[joystick->index].map == NULL) |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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parents:
872
diff
changeset
|
793 return 0; |
|
dc29e5907694
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parents:
872
diff
changeset
|
794 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
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|
795 /* 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
|
796 */ |
|
953
cb5e1d0cad31
Backing out new changes, at Chris Nelson's request.
Sam Lantinga <slouken@libsdl.org>
parents:
914
diff
changeset
|
797 axes = SDL_joylist[joystick->index].map->axes+axis; |
|
892
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Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
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|
798 logicaljoy = FindLogicalJoystick(joystick, axes); |
|
dc29e5907694
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Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
799 |
|
dc29e5907694
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parents:
872
diff
changeset
|
800 if (logicaljoy == NULL) |
|
dc29e5907694
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Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
801 return 1; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
802 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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diff
changeset
|
803 SDL_PrivateJoystickAxis(logicaljoy, axes->nthing, value); |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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parents:
872
diff
changeset
|
804 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
805 return 1; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
806 } |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
807 #endif /* USE_LOGICAL_JOYSTICKS */ |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
808 |
| 0 | 809 static __inline__ |
| 810 void HandleHat(SDL_Joystick *stick, Uint8 hat, int axis, int value) | |
| 811 { | |
| 812 struct hwdata_hat *the_hat; | |
| 813 const Uint8 position_map[3][3] = { | |
| 814 { SDL_HAT_LEFTUP, SDL_HAT_UP, SDL_HAT_RIGHTUP }, | |
| 815 { SDL_HAT_LEFT, SDL_HAT_CENTERED, SDL_HAT_RIGHT }, | |
| 816 { SDL_HAT_LEFTDOWN, SDL_HAT_DOWN, SDL_HAT_RIGHTDOWN } | |
| 817 }; | |
|
892
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Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
818 SDL_logical_joydecl(SDL_Joystick *logicaljoy = NULL); |
|
953
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Backing out new changes, at Chris Nelson's request.
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parents:
914
diff
changeset
|
819 SDL_logical_joydecl(struct joystick_logical_values* hats = NULL); |
| 0 | 820 |
| 821 the_hat = &stick->hwdata->hats[hat]; | |
| 822 if ( value < 0 ) { | |
| 823 value = 0; | |
| 824 } else | |
| 825 if ( value == 0 ) { | |
| 826 value = 1; | |
| 827 } else | |
| 828 if ( value > 0 ) { | |
| 829 value = 2; | |
| 830 } | |
| 831 if ( value != the_hat->axis[axis] ) { | |
| 832 the_hat->axis[axis] = value; | |
|
892
dc29e5907694
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Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
833 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
834 #ifndef NO_LOGICAL_JOYSTICKS |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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parents:
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diff
changeset
|
835 /* if there's no map then this is just a regular joystick |
|
dc29e5907694
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parents:
872
diff
changeset
|
836 */ |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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diff
changeset
|
837 if (SDL_joylist[stick->index].map != NULL) { |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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parents:
872
diff
changeset
|
838 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
839 /* 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:
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diff
changeset
|
840 */ |
|
953
cb5e1d0cad31
Backing out new changes, at Chris Nelson's request.
Sam Lantinga <slouken@libsdl.org>
parents:
914
diff
changeset
|
841 hats = SDL_joylist[stick->index].map->hats+hat; |
|
892
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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parents:
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changeset
|
842 logicaljoy = FindLogicalJoystick(stick, hats); |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
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changeset
|
843 } |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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diff
changeset
|
844 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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parents:
872
diff
changeset
|
845 if (logicaljoy) { |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
846 stick = logicaljoy; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
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|
847 hat = hats->nthing; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
848 } |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
849 #endif /* USE_LOGICAL_JOYSTICKS */ |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
850 |
| 0 | 851 SDL_PrivateJoystickHat(stick, hat, |
| 852 position_map[the_hat->axis[1]][the_hat->axis[0]]); | |
| 853 } | |
| 854 } | |
| 855 | |
| 856 static __inline__ | |
| 857 void HandleBall(SDL_Joystick *stick, Uint8 ball, int axis, int value) | |
| 858 { | |
| 859 stick->hwdata->balls[ball].axis[axis] += value; | |
| 860 } | |
| 861 | |
| 862 /* Function to update the state of a joystick - called as a device poll. | |
| 863 * This function shouldn't update the joystick structure directly, | |
| 864 * but instead should call SDL_PrivateJoystick*() to deliver events | |
| 865 * and update joystick device state. | |
| 866 */ | |
| 867 static __inline__ void JS_HandleEvents(SDL_Joystick *joystick) | |
| 868 { | |
| 869 struct js_event events[32]; | |
| 870 int i, len; | |
| 871 Uint8 other_axis; | |
| 872 | |
|
892
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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parents:
872
diff
changeset
|
873 #ifndef NO_LOGICAL_JOYSTICKS |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
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diff
changeset
|
874 if (SDL_joylist[joystick->index].fname == NULL) { |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
875 SDL_joylist_head(i, joystick->index); |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
876 return JS_HandleEvents(SDL_joylist[i].joy); |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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diff
changeset
|
877 } |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
878 #endif |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
879 |
| 0 | 880 while ((len=read(joystick->hwdata->fd, events, (sizeof events))) > 0) { |
| 881 len /= sizeof(events[0]); | |
| 882 for ( i=0; i<len; ++i ) { | |
| 883 switch (events[i].type & ~JS_EVENT_INIT) { | |
| 884 case JS_EVENT_AXIS: | |
| 885 if ( events[i].number < joystick->naxes ) { | |
|
892
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
886 #ifndef NO_LOGICAL_JOYSTICKS |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
887 if (!LogicalJoystickAxis(joystick, |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
888 events[i].number, events[i].value)) |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
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diff
changeset
|
889 #endif |
| 0 | 890 SDL_PrivateJoystickAxis(joystick, |
| 891 events[i].number, events[i].value); | |
| 892 break; | |
| 893 } | |
| 894 events[i].number -= joystick->naxes; | |
|
589
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895 other_axis = (events[i].number / 2); |
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896 if ( other_axis < joystick->nhats ) { |
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897 HandleHat(joystick, other_axis, |
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898 events[i].number%2, |
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899 events[i].value); |
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900 break; |
| 0 | 901 } |
| 902 events[i].number -= joystick->nhats*2; | |
| 903 other_axis = (events[i].number / 2); | |
| 904 if ( other_axis < joystick->nballs ) { | |
| 905 HandleBall(joystick, other_axis, | |
| 906 events[i].number%2, | |
| 907 events[i].value); | |
| 908 break; | |
| 909 } | |
| 910 break; | |
| 911 case JS_EVENT_BUTTON: | |
|
892
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912 #ifndef NO_LOGICAL_JOYSTICKS |
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913 if (!LogicalJoystickButton(joystick, |
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914 events[i].number, events[i].value)) |
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915 #endif |
| 0 | 916 SDL_PrivateJoystickButton(joystick, |
| 917 events[i].number, events[i].value); | |
| 918 break; | |
| 919 default: | |
| 920 /* ?? */ | |
| 921 break; | |
| 922 } | |
| 923 } | |
| 924 } | |
| 925 } | |
| 926 #ifdef USE_INPUT_EVENTS | |
| 927 static __inline__ int EV_AxisCorrect(SDL_Joystick *joystick, int which, int value) | |
| 928 { | |
| 929 struct axis_correct *correct; | |
| 930 | |
| 931 correct = &joystick->hwdata->abs_correct[which]; | |
| 932 if ( correct->used ) { | |
| 933 if ( value > correct->coef[0] ) { | |
| 934 if ( value < correct->coef[1] ) { | |
| 935 return 0; | |
| 936 } | |
| 937 value -= correct->coef[1]; | |
| 938 } else { | |
| 939 value -= correct->coef[0]; | |
| 940 } | |
| 941 value *= correct->coef[2]; | |
| 942 value >>= 14; | |
| 943 } | |
|
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944 |
| 0 | 945 /* Clamp and return */ |
| 1275 | 946 if ( value < -32768 ) return -32768; |
|
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947 if ( value > 32767 ) return 32767; |
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948 |
| 0 | 949 return value; |
| 950 } | |
| 951 | |
| 952 static __inline__ void EV_HandleEvents(SDL_Joystick *joystick) | |
| 953 { | |
| 954 struct input_event events[32]; | |
| 955 int i, len; | |
| 956 int code; | |
| 957 | |
|
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958 #ifndef NO_LOGICAL_JOYSTICKS |
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959 if (SDL_joylist[joystick->index].fname == NULL) { |
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960 SDL_joylist_head(i, joystick->index); |
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961 return EV_HandleEvents(SDL_joylist[i].joy); |
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962 } |
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963 #endif |
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964 |
| 0 | 965 while ((len=read(joystick->hwdata->fd, events, (sizeof events))) > 0) { |
| 966 len /= sizeof(events[0]); | |
| 967 for ( i=0; i<len; ++i ) { | |
| 968 code = events[i].code; | |
| 969 switch (events[i].type) { | |
| 970 case EV_KEY: | |
| 971 if ( code >= BTN_MISC ) { | |
| 972 code -= BTN_MISC; | |
|
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973 #ifndef NO_LOGICAL_JOYSTICKS |
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974 if (!LogicalJoystickButton(joystick, |
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975 joystick->hwdata->key_map[code], |
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976 events[i].value)) |
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977 #endif |
| 0 | 978 SDL_PrivateJoystickButton(joystick, |
| 979 joystick->hwdata->key_map[code], | |
| 980 events[i].value); | |
| 981 } | |
| 982 break; | |
| 983 case EV_ABS: | |
| 984 switch (code) { | |
| 985 case ABS_HAT0X: | |
| 986 case ABS_HAT0Y: | |
| 987 case ABS_HAT1X: | |
| 988 case ABS_HAT1Y: | |
| 989 case ABS_HAT2X: | |
| 990 case ABS_HAT2Y: | |
| 991 case ABS_HAT3X: | |
| 992 case ABS_HAT3Y: | |
| 993 code -= ABS_HAT0X; | |
| 994 HandleHat(joystick, code/2, code%2, | |
| 995 events[i].value); | |
| 996 break; | |
| 997 default: | |
| 998 events[i].value = EV_AxisCorrect(joystick, code, events[i].value); | |
|
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999 #ifndef NO_LOGICAL_JOYSTICKS |
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1000 if (!LogicalJoystickAxis(joystick, |
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1001 joystick->hwdata->abs_map[code], |
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1002 events[i].value)) |
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1003 #endif |
| 0 | 1004 SDL_PrivateJoystickAxis(joystick, |
| 1005 joystick->hwdata->abs_map[code], | |
| 1006 events[i].value); | |
| 1007 break; | |
| 1008 } | |
| 1009 break; | |
| 1010 case EV_REL: | |
| 1011 switch (code) { | |
| 1012 case REL_X: | |
| 1013 case REL_Y: | |
| 1014 code -= REL_X; | |
| 1015 HandleBall(joystick, code/2, code%2, | |
| 1016 events[i].value); | |
| 1017 break; | |
| 1018 default: | |
| 1019 break; | |
| 1020 } | |
| 1021 break; | |
| 1022 default: | |
| 1023 break; | |
| 1024 } | |
| 1025 } | |
| 1026 } | |
| 1027 } | |
| 1028 #endif /* USE_INPUT_EVENTS */ | |
| 1029 | |
| 1030 void SDL_SYS_JoystickUpdate(SDL_Joystick *joystick) | |
| 1031 { | |
| 1032 int i; | |
| 1033 | |
| 1034 #ifdef USE_INPUT_EVENTS | |
| 1035 if ( joystick->hwdata->is_hid ) | |
| 1036 EV_HandleEvents(joystick); | |
| 1037 else | |
| 1038 #endif | |
| 1039 JS_HandleEvents(joystick); | |
| 1040 | |
| 1041 /* Deliver ball motion updates */ | |
| 1042 for ( i=0; i<joystick->nballs; ++i ) { | |
| 1043 int xrel, yrel; | |
| 1044 | |
| 1045 xrel = joystick->hwdata->balls[i].axis[0]; | |
| 1046 yrel = joystick->hwdata->balls[i].axis[1]; | |
| 1047 if ( xrel || yrel ) { | |
| 1048 joystick->hwdata->balls[i].axis[0] = 0; | |
| 1049 joystick->hwdata->balls[i].axis[1] = 0; | |
| 1050 SDL_PrivateJoystickBall(joystick, (Uint8)i, xrel, yrel); | |
| 1051 } | |
| 1052 } | |
| 1053 } | |
| 1054 | |
| 1055 /* Function to close a joystick after use */ | |
| 1056 void SDL_SYS_JoystickClose(SDL_Joystick *joystick) | |
| 1057 { | |
|
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1058 #ifndef NO_LOGICAL_JOYSTICKS |
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1059 register int i; |
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1060 if (SDL_joylist[joystick->index].fname == NULL) { |
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1061 SDL_joylist_head(i, joystick->index); |
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1062 SDL_JoystickClose(SDL_joylist[i].joy); |
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1063 } |
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1064 #endif |
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1065 |
| 0 | 1066 if ( joystick->hwdata ) { |
|
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1067 #ifndef NO_LOGICAL_JOYSTICKS |
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1068 if (SDL_joylist[joystick->index].fname != NULL) |
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1069 #endif |
| 0 | 1070 close(joystick->hwdata->fd); |
| 1071 if ( joystick->hwdata->hats ) { | |
| 1072 free(joystick->hwdata->hats); | |
| 1073 } | |
| 1074 if ( joystick->hwdata->balls ) { | |
| 1075 free(joystick->hwdata->balls); | |
| 1076 } | |
| 1077 free(joystick->hwdata); | |
| 1078 joystick->hwdata = NULL; | |
| 1079 } | |
| 1080 } | |
| 1081 | |
| 1082 /* Function to perform any system-specific joystick related cleanup */ | |
| 1083 void SDL_SYS_JoystickQuit(void) | |
| 1084 { | |
| 1085 int i; | |
| 1086 | |
|
892
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1087 for ( i=0; SDL_joylist[i].fname; ++i ) { |
|
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1088 free(SDL_joylist[i].fname); |
| 0 | 1089 } |
|
892
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1090 SDL_joylist[0].fname = NULL; |
| 0 | 1091 } |
| 1092 |