Mercurial > sdl-ios-xcode
annotate src/joystick/linux/SDL_sysjoystick.c @ 1361:19418e4422cb
New configure-based build system. Still work in progress, but much improved
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Thu, 16 Feb 2006 10:11:48 +0000 |
| parents | c71e05b4dc2e |
| children | c0a74f199ecf |
| 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 */ |
| 22 | |
| 23 /* This is the system specific header for the SDL joystick API */ | |
| 24 | |
| 25 #include <sys/stat.h> | |
| 26 #include <unistd.h> | |
| 27 #include <fcntl.h> | |
| 28 #include <sys/ioctl.h> | |
| 29 #include <limits.h> /* For the definition of PATH_MAX */ | |
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30 #ifdef __arm__ |
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31 #include <linux/limits.h> /* Arm cross-compiler needs this */ |
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32 #endif |
| 0 | 33 #include <linux/joystick.h> |
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34 #if SDL_INPUT_LINUXEV |
| 0 | 35 #include <linux/input.h> |
| 36 #endif | |
| 37 | |
| 38 #include "SDL_joystick.h" | |
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39 #include "../SDL_sysjoystick.h" |
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40 #include "../SDL_joystick_c.h" |
| 0 | 41 |
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42 /* Special joystick configurations */ |
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43 static struct { |
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44 const char *name; |
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45 int naxes; |
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46 int nhats; |
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47 int nballs; |
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48 } special_joysticks[] = { |
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49 { "MadCatz Panther XL", 3, 2, 1 }, /* We don't handle rudder (axis 8) */ |
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50 { "SideWinder Precision Pro", 4, 1, 0 }, |
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51 { "SideWinder 3D Pro", 4, 1, 0 }, |
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52 { "Microsoft SideWinder 3D Pro", 4, 1, 0 }, |
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53 { "Microsoft SideWinder Dual Strike USB version 1.0", 2, 1, 0 }, |
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54 { "WingMan Interceptor", 3, 3, 0 }, |
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55 { "WingMan Extreme Digital 3D", 4, 1, 0 }, |
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56 { "Microsoft SideWinder Precision 2 Joystick", 4, 1, 0 }, |
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57 { "Logitech Inc. WingMan Extreme Digital 3D", 4, 1, 0 }, |
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58 { "Saitek Saitek X45", 6, 1, 0 } |
| 0 | 59 }; |
| 60 | |
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61 #ifndef NO_LOGICAL_JOYSTICKS |
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62 |
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63 static struct joystick_logical_values { |
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64 int njoy; |
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65 int nthing; |
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66 } joystick_logical_values[] = { |
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67 |
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68 /* +0 */ |
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69 /* MP-8800 axes map - map to {logical joystick #, logical axis #} */ |
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70 {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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71 {3,0},{3,1},{3,2},{3,3},{0,4},{1,4},{2,4}, |
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72 |
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73 /* +19 */ |
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74 /* MP-8800 hat map - map to {logical joystick #, logical hat #} */ |
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75 {0,0},{1,0},{2,0},{3,0}, |
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76 |
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77 /* +23 */ |
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78 /* MP-8800 button map - map to {logical joystick #, logical button #} */ |
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79 {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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80 {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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81 {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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82 {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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83 }; |
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84 |
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85 static struct joystick_logical_layout { |
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86 int naxes; |
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87 int nhats; |
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88 int nballs; |
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89 int nbuttons; |
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90 } joystick_logical_layout[] = { |
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91 /* MP-8800 logical layout */ |
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92 {5, 1, 0, 12}, |
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93 {5, 1, 0, 12}, |
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94 {5, 1, 0, 12}, |
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95 {4, 1, 0, 12} |
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96 }; |
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97 |
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98 /* |
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99 Some USB HIDs show up as a single joystick even though they actually |
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100 control 2 or more joysticks. This array sets up a means of mapping |
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101 a single physical joystick to multiple logical joysticks. (djm) |
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102 |
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103 njoys |
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104 the number of logical joysticks |
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105 |
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106 layouts |
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107 an array of layout structures, one to describe each logical joystick |
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108 |
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109 axes, hats, balls, buttons |
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110 arrays that map a physical thingy to a logical thingy |
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111 */ |
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112 static struct joystick_logicalmap { |
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113 const char *name; |
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114 int njoys; |
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115 struct joystick_logical_layout *layouts; |
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116 struct joystick_logical_values *axes; |
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117 struct joystick_logical_values *hats; |
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118 struct joystick_logical_values *balls; |
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119 struct joystick_logical_values *buttons; |
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120 |
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121 } joystick_logicalmap[] = { |
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122 {"WiseGroup.,Ltd MP-8800 Quad USB Joypad", 4, joystick_logical_layout, |
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123 joystick_logical_values, joystick_logical_values+19, NULL, |
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124 joystick_logical_values+23} |
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125 }; |
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126 |
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127 /* find the head of a linked list, given a point in it |
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128 */ |
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129 #define SDL_joylist_head(i, start)\ |
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130 for(i = start; SDL_joylist[i].fname == NULL;) i = SDL_joylist[i].prev; |
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131 |
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132 #define SDL_logical_joydecl(d) d |
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133 |
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134 |
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135 #else |
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136 |
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137 #define SDL_logical_joydecl(d) |
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138 |
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139 #endif /* USE_LOGICAL_JOYSTICKS */ |
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140 |
| 0 | 141 /* The maximum number of joysticks we'll detect */ |
| 142 #define MAX_JOYSTICKS 32 | |
| 143 | |
| 144 /* A list of available joysticks */ | |
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145 static struct |
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146 { |
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147 char* fname; |
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148 #ifndef NO_LOGICAL_JOYSTICKS |
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149 SDL_Joystick* joy; |
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150 struct joystick_logicalmap* map; |
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151 int prev; |
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152 int next; |
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153 int logicalno; |
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154 #endif /* USE_LOGICAL_JOYSTICKS */ |
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155 } SDL_joylist[MAX_JOYSTICKS]; |
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156 |
| 0 | 157 |
| 158 /* The private structure used to keep track of a joystick */ | |
| 159 struct joystick_hwdata { | |
| 160 int fd; | |
| 161 /* The current linux joystick driver maps hats to two axes */ | |
| 162 struct hwdata_hat { | |
| 163 int axis[2]; | |
| 164 } *hats; | |
| 165 /* The current linux joystick driver maps balls to two axes */ | |
| 166 struct hwdata_ball { | |
| 167 int axis[2]; | |
| 168 } *balls; | |
| 169 | |
| 170 /* Support for the Linux 2.4 unified input interface */ | |
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171 #if SDL_INPUT_LINUXEV |
| 0 | 172 SDL_bool is_hid; |
| 173 Uint8 key_map[KEY_MAX-BTN_MISC]; | |
| 174 Uint8 abs_map[ABS_MAX]; | |
| 175 struct axis_correct { | |
| 176 int used; | |
| 177 int coef[3]; | |
| 178 } abs_correct[ABS_MAX]; | |
| 179 #endif | |
| 180 }; | |
| 181 | |
| 182 static char *mystrdup(const char *string) | |
| 183 { | |
| 184 char *newstring; | |
| 185 | |
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186 newstring = (char *)SDL_malloc(SDL_strlen(string)+1); |
| 0 | 187 if ( newstring ) { |
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188 SDL_strcpy(newstring, string); |
| 0 | 189 } |
| 190 return(newstring); | |
| 191 } | |
| 192 | |
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193 |
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194 #ifndef NO_LOGICAL_JOYSTICKS |
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195 |
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196 static int CountLogicalJoysticks(int max) |
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197 { |
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198 register int i, j, k, ret, prev; |
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199 const char* name; |
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200 |
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201 ret = 0; |
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202 |
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203 for(i = 0; i < max; i++) { |
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204 name = SDL_SYS_JoystickName(i); |
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205 |
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206 if (name) { |
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207 for(j = 0; j < SDL_TABLESIZE(joystick_logicalmap); j++) { |
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208 if (!SDL_strcmp(name, joystick_logicalmap[j].name)) { |
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209 |
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210 prev = i; |
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211 SDL_joylist[prev].map = joystick_logicalmap+j; |
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212 |
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213 for(k = 1; k < joystick_logicalmap[j].njoys; k++) { |
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214 SDL_joylist[prev].next = max + ret; |
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215 |
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216 if (prev != i) |
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217 SDL_joylist[max+ret].prev = prev; |
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218 |
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219 prev = max + ret; |
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220 SDL_joylist[prev].logicalno = k; |
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221 SDL_joylist[prev].map = joystick_logicalmap+j; |
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222 ret++; |
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223 } |
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224 |
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225 break; |
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226 } |
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227 } |
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228 } |
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229 } |
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230 |
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231 return ret; |
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232 } |
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233 |
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234 static void LogicalSuffix(int logicalno, char* namebuf, int len) |
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235 { |
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236 register int slen; |
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237 const static char suffixs[] = |
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238 "01020304050607080910111213141516171819" |
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239 "20212223242526272829303132"; |
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240 const char* suffix; |
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241 |
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242 slen = SDL_strlen(namebuf); |
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243 |
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244 suffix = NULL; |
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245 |
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246 if (logicalno*2<sizeof(suffixs)) |
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247 suffix = suffixs + (logicalno*2); |
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248 |
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249 if (slen + 4 < len && suffix) { |
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250 namebuf[slen++] = ' '; |
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251 namebuf[slen++] = '#'; |
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252 namebuf[slen++] = suffix[0]; |
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253 namebuf[slen++] = suffix[1]; |
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254 namebuf[slen++] = 0; |
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255 } |
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256 } |
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257 |
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258 #endif /* USE_LOGICAL_JOYSTICKS */ |
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259 |
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260 #if SDL_INPUT_LINUXEV |
| 0 | 261 #define test_bit(nr, addr) \ |
| 262 (((1UL << ((nr) & 31)) & (((const unsigned int *) addr)[(nr) >> 5])) != 0) | |
| 263 | |
| 264 static int EV_IsJoystick(int fd) | |
| 265 { | |
| 266 unsigned long evbit[40]; | |
| 267 unsigned long keybit[40]; | |
| 268 unsigned long absbit[40]; | |
| 269 | |
| 270 if ( (ioctl(fd, EVIOCGBIT(0, sizeof(evbit)), evbit) < 0) || | |
| 271 (ioctl(fd, EVIOCGBIT(EV_KEY, sizeof(keybit)), keybit) < 0) || | |
| 272 (ioctl(fd, EVIOCGBIT(EV_ABS, sizeof(absbit)), absbit) < 0) ) { | |
| 273 return(0); | |
| 274 } | |
| 275 if (!(test_bit(EV_KEY, evbit) && test_bit(EV_ABS, evbit) && | |
| 276 test_bit(ABS_X, absbit) && test_bit(ABS_Y, absbit) && | |
| 277 (test_bit(BTN_TRIGGER, keybit) || test_bit(BTN_A, keybit) || test_bit(BTN_1, keybit)))) return 0; | |
| 278 return(1); | |
| 279 } | |
| 280 | |
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281 #endif /* SDL_INPUT_LINUXEV */ |
| 0 | 282 |
| 283 /* Function to scan the system for joysticks */ | |
| 284 int SDL_SYS_JoystickInit(void) | |
| 285 { | |
| 286 /* The base path of the joystick devices */ | |
|
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287 const char *joydev_pattern[] = { |
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288 #if SDL_INPUT_LINUXEV |
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289 "/dev/input/event%d", |
|
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290 #endif |
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291 "/dev/input/js%d", |
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292 "/dev/js%d" |
| 0 | 293 }; |
| 294 int numjoysticks; | |
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295 int i, j; |
| 0 | 296 int fd; |
| 297 char path[PATH_MAX]; | |
| 298 dev_t dev_nums[MAX_JOYSTICKS]; /* major/minor device numbers */ | |
| 299 struct stat sb; | |
| 300 int n, duplicate; | |
| 301 | |
| 302 numjoysticks = 0; | |
| 303 | |
| 304 /* First see if the user specified a joystick to use */ | |
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305 if ( SDL_getenv("SDL_JOYSTICK_DEVICE") != NULL ) { |
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306 SDL_strncpy(path, SDL_getenv("SDL_JOYSTICK_DEVICE"), sizeof(path)); |
| 0 | 307 path[sizeof(path)-1] = '\0'; |
| 308 if ( stat(path, &sb) == 0 ) { | |
| 309 fd = open(path, O_RDONLY, 0); | |
| 310 if ( fd >= 0 ) { | |
| 311 /* Assume the user knows what they're doing. */ | |
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312 SDL_joylist[numjoysticks].fname =mystrdup(path); |
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313 if ( SDL_joylist[numjoysticks].fname ) { |
| 0 | 314 dev_nums[numjoysticks] = sb.st_rdev; |
| 315 ++numjoysticks; | |
| 316 } | |
| 317 close(fd); | |
| 318 } | |
| 319 } | |
| 320 } | |
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321 |
| 0 | 322 for ( i=0; i<SDL_TABLESIZE(joydev_pattern); ++i ) { |
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323 for ( j=0; j < MAX_JOYSTICKS; ++j ) { |
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324 SDL_snprintf(path, SDL_arraysize(path), joydev_pattern[i], j); |
| 0 | 325 |
| 326 /* rcg06302000 replaced access(F_OK) call with stat(). | |
| 327 * stat() will fail if the file doesn't exist, so it's | |
| 328 * equivalent behaviour. | |
| 329 */ | |
| 330 if ( stat(path, &sb) == 0 ) { | |
| 331 /* Check to make sure it's not already in list. | |
| 332 * This happens when we see a stick via symlink. | |
| 333 */ | |
| 334 duplicate = 0; | |
| 335 for (n=0; (n<numjoysticks) && !duplicate; ++n) { | |
| 336 if ( sb.st_rdev == dev_nums[n] ) { | |
| 337 duplicate = 1; | |
| 338 } | |
| 339 } | |
| 340 if (duplicate) { | |
| 341 continue; | |
| 342 } | |
| 343 | |
| 344 fd = open(path, O_RDONLY, 0); | |
| 345 if ( fd < 0 ) { | |
| 346 continue; | |
| 347 } | |
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348 #if SDL_INPUT_LINUXEV |
| 0 | 349 #ifdef DEBUG_INPUT_EVENTS |
| 350 printf("Checking %s\n", path); | |
| 351 #endif | |
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352 if ( (i == 0) && ! EV_IsJoystick(fd) ) { |
| 0 | 353 close(fd); |
| 354 continue; | |
| 355 } | |
| 356 #endif | |
| 357 close(fd); | |
| 358 | |
| 359 /* We're fine, add this joystick */ | |
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360 SDL_joylist[numjoysticks].fname =mystrdup(path); |
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361 if ( SDL_joylist[numjoysticks].fname ) { |
| 0 | 362 dev_nums[numjoysticks] = sb.st_rdev; |
| 363 ++numjoysticks; | |
| 364 } | |
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365 } else |
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366 break; |
| 0 | 367 } |
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368 |
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369 #if SDL_INPUT_LINUXEV |
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370 /* This is a special case... |
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371 If the event devices are valid then the joystick devices |
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372 will be duplicates but without extra information about their |
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373 hats or balls. Unfortunately, the event devices can't |
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374 currently be calibrated, so it's a win-lose situation. |
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375 So : /dev/input/eventX = /dev/input/jsY = /dev/jsY |
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376 */ |
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377 if ( (i == 0) && (numjoysticks > 0) ) |
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378 break; |
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379 #endif |
| 0 | 380 } |
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381 #ifndef NO_LOGICAL_JOYSTICKS |
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382 numjoysticks += CountLogicalJoysticks(numjoysticks); |
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383 #endif |
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384 |
| 0 | 385 return(numjoysticks); |
| 386 } | |
| 387 | |
| 388 /* Function to get the device-dependent name of a joystick */ | |
| 389 const char *SDL_SYS_JoystickName(int index) | |
| 390 { | |
| 391 int fd; | |
| 392 static char namebuf[128]; | |
| 393 char *name; | |
|
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394 SDL_logical_joydecl(int oindex = index); |
| 0 | 395 |
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396 #ifndef NO_LOGICAL_JOYSTICKS |
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397 SDL_joylist_head(index, index); |
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398 #endif |
| 0 | 399 name = NULL; |
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400 fd = open(SDL_joylist[index].fname, O_RDONLY, 0); |
| 0 | 401 if ( fd >= 0 ) { |
| 402 if ( | |
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403 #if SDL_INPUT_LINUXEV |
| 0 | 404 (ioctl(fd, EVIOCGNAME(sizeof(namebuf)), namebuf) <= 0) && |
| 405 #endif | |
| 406 (ioctl(fd, JSIOCGNAME(sizeof(namebuf)), namebuf) <= 0) ) { | |
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407 name = SDL_joylist[index].fname; |
| 0 | 408 } else { |
| 409 name = namebuf; | |
| 410 } | |
| 411 close(fd); | |
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412 |
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413 #ifndef NO_LOGICAL_JOYSTICKS |
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414 if (SDL_joylist[oindex].prev || SDL_joylist[oindex].next) |
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415 LogicalSuffix(SDL_joylist[oindex].logicalno, namebuf, 128); |
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416 #endif |
| 0 | 417 } |
| 418 return name; | |
| 419 } | |
| 420 | |
| 421 static int allocate_hatdata(SDL_Joystick *joystick) | |
| 422 { | |
| 423 int i; | |
| 424 | |
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425 joystick->hwdata->hats = (struct hwdata_hat *)SDL_malloc( |
| 0 | 426 joystick->nhats * sizeof(struct hwdata_hat)); |
| 427 if ( joystick->hwdata->hats == NULL ) { | |
| 428 return(-1); | |
| 429 } | |
| 430 for ( i=0; i<joystick->nhats; ++i ) { | |
| 431 joystick->hwdata->hats[i].axis[0] = 1; | |
| 432 joystick->hwdata->hats[i].axis[1] = 1; | |
| 433 } | |
| 434 return(0); | |
| 435 } | |
| 436 | |
| 437 static int allocate_balldata(SDL_Joystick *joystick) | |
| 438 { | |
| 439 int i; | |
| 440 | |
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441 joystick->hwdata->balls = (struct hwdata_ball *)SDL_malloc( |
| 0 | 442 joystick->nballs * sizeof(struct hwdata_ball)); |
| 443 if ( joystick->hwdata->balls == NULL ) { | |
| 444 return(-1); | |
| 445 } | |
| 446 for ( i=0; i<joystick->nballs; ++i ) { | |
| 447 joystick->hwdata->balls[i].axis[0] = 0; | |
| 448 joystick->hwdata->balls[i].axis[1] = 0; | |
| 449 } | |
| 450 return(0); | |
| 451 } | |
| 452 | |
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453 static SDL_bool JS_ConfigJoystick(SDL_Joystick *joystick, int fd) |
| 0 | 454 { |
| 455 SDL_bool handled; | |
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456 unsigned char n; |
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457 int old_axes, tmp_naxes, tmp_nhats, tmp_nballs; |
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458 const char *name; |
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459 char *env, env_name[128]; |
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460 int i; |
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461 |
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462 handled = SDL_FALSE; |
| 0 | 463 |
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464 /* Default joystick device settings */ |
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465 if ( ioctl(fd, JSIOCGAXES, &n) < 0 ) { |
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466 joystick->naxes = 2; |
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467 } else { |
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468 joystick->naxes = n; |
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469 } |
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470 if ( ioctl(fd, JSIOCGBUTTONS, &n) < 0 ) { |
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471 joystick->nbuttons = 2; |
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472 } else { |
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473 joystick->nbuttons = n; |
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474 } |
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475 |
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476 name = SDL_SYS_JoystickName(joystick->index); |
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477 old_axes = joystick->naxes; |
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478 |
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479 /* Generic analog joystick support */ |
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480 if ( SDL_strstr(name, "Analog") == name && SDL_strstr(name, "-hat") ) { |
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481 if ( SDL_sscanf(name,"Analog %d-axis %*d-button %d-hat", |
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482 &tmp_naxes, &tmp_nhats) == 2 ) { |
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483 |
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484 joystick->naxes = tmp_naxes; |
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485 joystick->nhats = tmp_nhats; |
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486 |
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487 handled = SDL_TRUE; |
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488 } |
| 0 | 489 } |
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490 |
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491 /* Special joystick support */ |
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492 for ( i=0; i < SDL_TABLESIZE(special_joysticks); ++i ) { |
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493 if ( SDL_strcmp(name, special_joysticks[i].name) == 0 ) { |
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494 |
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495 joystick->naxes = special_joysticks[i].naxes; |
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496 joystick->nhats = special_joysticks[i].nhats; |
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497 joystick->nballs = special_joysticks[i].nballs; |
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498 |
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499 handled = SDL_TRUE; |
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500 break; |
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501 } |
| 0 | 502 } |
|
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503 |
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504 /* User environment joystick support */ |
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505 if ( (env = SDL_getenv("SDL_LINUX_JOYSTICK")) ) { |
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506 SDL_strcpy(env_name, ""); |
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507 if ( *env == '\'' && SDL_sscanf(env, "'%[^']s'", env_name) == 1 ) |
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508 env += SDL_strlen(env_name)+2; |
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509 else if ( SDL_sscanf(env, "%s", env_name) == 1 ) |
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510 env += SDL_strlen(env_name); |
|
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511 |
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512 if ( SDL_strcmp(name, env_name) == 0 ) { |
| 0 | 513 |
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514 if ( SDL_sscanf(env, "%d %d %d", &tmp_naxes, &tmp_nhats, |
|
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515 &tmp_nballs) == 3 ) { |
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516 |
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517 joystick->naxes = tmp_naxes; |
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518 joystick->nhats = tmp_nhats; |
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519 joystick->nballs = tmp_nballs; |
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520 |
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521 handled = SDL_TRUE; |
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522 } |
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523 } |
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524 } |
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525 |
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526 /* Remap hats and balls */ |
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527 if (handled) { |
| 0 | 528 if ( joystick->nhats > 0 ) { |
|
589
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529 if ( allocate_hatdata(joystick) < 0 ) { |
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530 joystick->nhats = 0; |
| 0 | 531 } |
| 532 } | |
| 533 if ( joystick->nballs > 0 ) { | |
| 534 if ( allocate_balldata(joystick) < 0 ) { | |
| 535 joystick->nballs = 0; | |
| 536 } | |
| 537 } | |
| 538 } | |
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539 |
| 0 | 540 return(handled); |
| 541 } | |
| 542 | |
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543 #if SDL_INPUT_LINUXEV |
| 0 | 544 |
| 545 static SDL_bool EV_ConfigJoystick(SDL_Joystick *joystick, int fd) | |
| 546 { | |
| 871 | 547 int i, t; |
| 0 | 548 unsigned long keybit[40]; |
| 549 unsigned long absbit[40]; | |
| 550 unsigned long relbit[40]; | |
| 551 | |
| 552 /* See if this device uses the new unified event API */ | |
| 553 if ( (ioctl(fd, EVIOCGBIT(EV_KEY, sizeof(keybit)), keybit) >= 0) && | |
| 554 (ioctl(fd, EVIOCGBIT(EV_ABS, sizeof(absbit)), absbit) >= 0) && | |
| 555 (ioctl(fd, EVIOCGBIT(EV_REL, sizeof(relbit)), relbit) >= 0) ) { | |
| 556 joystick->hwdata->is_hid = SDL_TRUE; | |
| 557 | |
| 558 /* Get the number of buttons, axes, and other thingamajigs */ | |
| 559 for ( i=BTN_JOYSTICK; i < KEY_MAX; ++i ) { | |
| 560 if ( test_bit(i, keybit) ) { | |
| 561 #ifdef DEBUG_INPUT_EVENTS | |
| 562 printf("Joystick has button: 0x%x\n", i); | |
| 563 #endif | |
| 564 joystick->hwdata->key_map[i-BTN_MISC] = | |
| 565 joystick->nbuttons; | |
| 566 ++joystick->nbuttons; | |
| 567 } | |
| 568 } | |
| 569 for ( i=BTN_MISC; i < BTN_JOYSTICK; ++i ) { | |
| 570 if ( test_bit(i, keybit) ) { | |
| 571 #ifdef DEBUG_INPUT_EVENTS | |
| 572 printf("Joystick has button: 0x%x\n", i); | |
| 573 #endif | |
| 574 joystick->hwdata->key_map[i-BTN_MISC] = | |
| 575 joystick->nbuttons; | |
| 576 ++joystick->nbuttons; | |
| 577 } | |
| 578 } | |
| 579 for ( i=0; i<ABS_MAX; ++i ) { | |
| 580 /* Skip hats */ | |
| 581 if ( i == ABS_HAT0X ) { | |
| 582 i = ABS_HAT3Y; | |
| 583 continue; | |
| 584 } | |
| 585 if ( test_bit(i, absbit) ) { | |
| 586 int values[5]; | |
| 587 | |
|
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588 if ( ioctl(fd, EVIOCGABS(i), values) < 0 ) |
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589 continue; |
| 0 | 590 #ifdef DEBUG_INPUT_EVENTS |
| 591 printf("Joystick has absolute axis: %x\n", i); | |
| 592 printf("Values = { %d, %d, %d, %d, %d }\n", | |
| 593 values[0], values[1], | |
| 594 values[2], values[3], values[4]); | |
| 595 #endif /* DEBUG_INPUT_EVENTS */ | |
| 596 joystick->hwdata->abs_map[i] = joystick->naxes; | |
| 597 if ( values[1] == values[2] ) { | |
| 598 joystick->hwdata->abs_correct[i].used = 0; | |
| 599 } else { | |
| 600 joystick->hwdata->abs_correct[i].used = 1; | |
|
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601 joystick->hwdata->abs_correct[i].coef[0] = |
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602 (values[2] + values[1]) / 2 - values[4]; |
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603 joystick->hwdata->abs_correct[i].coef[1] = |
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604 (values[2] + values[1]) / 2 + values[4]; |
| 871 | 605 t = ((values[2] - values[1]) / 2 - 2 * values[4]); |
| 606 if ( t != 0 ) { | |
| 607 joystick->hwdata->abs_correct[i].coef[2] = (1 << 29) / t; | |
|
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608 } else { |
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609 joystick->hwdata->abs_correct[i].coef[2] = 0; |
| 871 | 610 } |
| 0 | 611 } |
| 612 ++joystick->naxes; | |
| 613 } | |
| 614 } | |
| 615 for ( i=ABS_HAT0X; i <= ABS_HAT3Y; i += 2 ) { | |
| 616 if ( test_bit(i, absbit) || test_bit(i+1, absbit) ) { | |
| 617 #ifdef DEBUG_INPUT_EVENTS | |
| 618 printf("Joystick has hat %d\n",(i-ABS_HAT0X)/2); | |
| 619 #endif | |
| 620 ++joystick->nhats; | |
| 621 } | |
| 622 } | |
| 623 if ( test_bit(REL_X, relbit) || test_bit(REL_Y, relbit) ) { | |
| 624 ++joystick->nballs; | |
| 625 } | |
| 626 | |
| 627 /* Allocate data to keep track of these thingamajigs */ | |
| 628 if ( joystick->nhats > 0 ) { | |
| 629 if ( allocate_hatdata(joystick) < 0 ) { | |
| 630 joystick->nhats = 0; | |
| 631 } | |
| 632 } | |
| 633 if ( joystick->nballs > 0 ) { | |
| 634 if ( allocate_balldata(joystick) < 0 ) { | |
| 635 joystick->nballs = 0; | |
| 636 } | |
| 637 } | |
| 638 } | |
| 639 return(joystick->hwdata->is_hid); | |
| 640 } | |
| 641 | |
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642 #endif /* SDL_INPUT_LINUXEV */ |
| 0 | 643 |
|
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644 #ifndef NO_LOGICAL_JOYSTICKS |
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645 static void ConfigLogicalJoystick(SDL_Joystick *joystick) |
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646 { |
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647 struct joystick_logical_layout* layout; |
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648 |
|
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649 layout = SDL_joylist[joystick->index].map->layouts + |
|
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650 SDL_joylist[joystick->index].logicalno; |
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651 |
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652 joystick->nbuttons = layout->nbuttons; |
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653 joystick->nhats = layout->nhats; |
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654 joystick->naxes = layout->naxes; |
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655 joystick->nballs = layout->nballs; |
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656 } |
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657 #endif |
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658 |
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659 |
| 0 | 660 /* Function to open a joystick for use. |
| 661 The joystick to open is specified by the index field of the joystick. | |
| 662 This should fill the nbuttons and naxes fields of the joystick structure. | |
| 663 It returns 0, or -1 if there is an error. | |
| 664 */ | |
| 665 int SDL_SYS_JoystickOpen(SDL_Joystick *joystick) | |
| 666 { | |
| 667 int fd; | |
|
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668 SDL_logical_joydecl(int realindex); |
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669 SDL_logical_joydecl(SDL_Joystick *realjoy = NULL); |
| 0 | 670 |
| 671 /* Open the joystick and set the joystick file descriptor */ | |
|
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672 #ifndef NO_LOGICAL_JOYSTICKS |
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673 if (SDL_joylist[joystick->index].fname == NULL) { |
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674 SDL_joylist_head(realindex, joystick->index); |
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675 realjoy = SDL_JoystickOpen(realindex); |
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676 |
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677 if (realjoy == NULL) |
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678 return(-1); |
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679 |
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680 fd = realjoy->hwdata->fd; |
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681 |
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682 } else { |
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683 fd = open(SDL_joylist[joystick->index].fname, O_RDONLY, 0); |
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684 } |
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685 SDL_joylist[joystick->index].joy = joystick; |
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686 #else |
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687 fd = open(SDL_joylist[joystick->index].fname, O_RDONLY, 0); |
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688 #endif |
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689 |
| 0 | 690 if ( fd < 0 ) { |
| 691 SDL_SetError("Unable to open %s\n", | |
| 692 SDL_joylist[joystick->index]); | |
| 693 return(-1); | |
| 694 } | |
| 695 joystick->hwdata = (struct joystick_hwdata *) | |
|
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696 SDL_malloc(sizeof(*joystick->hwdata)); |
| 0 | 697 if ( joystick->hwdata == NULL ) { |
| 698 SDL_OutOfMemory(); | |
| 699 close(fd); | |
| 700 return(-1); | |
| 701 } | |
|
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702 SDL_memset(joystick->hwdata, 0, sizeof(*joystick->hwdata)); |
| 0 | 703 joystick->hwdata->fd = fd; |
| 704 | |
| 705 /* Set the joystick to non-blocking read mode */ | |
| 706 fcntl(fd, F_SETFL, O_NONBLOCK); | |
| 707 | |
| 708 /* Get the number of buttons and axes on the joystick */ | |
|
892
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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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|
709 #ifndef NO_LOGICAL_JOYSTICKS |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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diff
changeset
|
710 if (realjoy) |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
711 ConfigLogicalJoystick(joystick); |
|
dc29e5907694
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parents:
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diff
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|
712 else |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
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|
713 #endif |
|
1361
19418e4422cb
New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents:
1358
diff
changeset
|
714 #if SDL_INPUT_LINUXEV |
| 0 | 715 if ( ! EV_ConfigJoystick(joystick, fd) ) |
| 716 #endif | |
|
554
38b1a98aeb11
Linux joystick cleanups from Alan Swanson
Sam Lantinga <slouken@libsdl.org>
parents:
408
diff
changeset
|
717 JS_ConfigJoystick(joystick, fd); |
|
38b1a98aeb11
Linux joystick cleanups from Alan Swanson
Sam Lantinga <slouken@libsdl.org>
parents:
408
diff
changeset
|
718 |
| 0 | 719 return(0); |
| 720 } | |
| 721 | |
|
892
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Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
722 #ifndef NO_LOGICAL_JOYSTICKS |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
723 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
724 static SDL_Joystick* FindLogicalJoystick( |
|
953
cb5e1d0cad31
Backing out new changes, at Chris Nelson's request.
Sam Lantinga <slouken@libsdl.org>
parents:
914
diff
changeset
|
725 SDL_Joystick *joystick, struct joystick_logical_values* v) |
|
892
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
726 { |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
727 SDL_Joystick *logicaljoy; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
728 register int i; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
729 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
730 i = joystick->index; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
731 logicaljoy = NULL; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
732 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
733 /* 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
|
734 */ |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
735 for(;;) { |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
736 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
737 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
|
738 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
|
739 break; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
740 } |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
741 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
742 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
|
743 break; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
744 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
745 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
|
746 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
747 } |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
748 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
749 return logicaljoy; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
750 } |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
751 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
752 static int LogicalJoystickButton( |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
753 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
|
754 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
|
755 SDL_Joystick *logicaljoy = NULL; |
|
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 /* 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
|
758 */ |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
759 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
|
760 return 0; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
761 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
762 /* 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
|
763 */ |
|
953
cb5e1d0cad31
Backing out new changes, at Chris Nelson's request.
Sam Lantinga <slouken@libsdl.org>
parents:
914
diff
changeset
|
764 buttons = SDL_joylist[joystick->index].map->buttons+button; |
|
892
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
765 logicaljoy = FindLogicalJoystick(joystick, buttons); |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
766 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
767 if (logicaljoy == NULL) |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
768 return 1; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
769 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
770 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
|
771 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
772 return 1; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
773 } |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
774 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
775 static int LogicalJoystickAxis( |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
776 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
|
777 { |
|
953
cb5e1d0cad31
Backing out new changes, at Chris Nelson's request.
Sam Lantinga <slouken@libsdl.org>
parents:
914
diff
changeset
|
778 struct joystick_logical_values* axes; |
|
892
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
779 SDL_Joystick *logicaljoy = NULL; |
|
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 /* 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
|
782 */ |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
783 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
|
784 return 0; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
785 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
786 /* 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
|
787 */ |
|
953
cb5e1d0cad31
Backing out new changes, at Chris Nelson's request.
Sam Lantinga <slouken@libsdl.org>
parents:
914
diff
changeset
|
788 axes = SDL_joylist[joystick->index].map->axes+axis; |
|
892
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
789 logicaljoy = FindLogicalJoystick(joystick, axes); |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
790 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
791 if (logicaljoy == NULL) |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
792 return 1; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
793 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
794 SDL_PrivateJoystickAxis(logicaljoy, axes->nthing, value); |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
795 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
796 return 1; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
797 } |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
798 #endif /* USE_LOGICAL_JOYSTICKS */ |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
799 |
| 0 | 800 static __inline__ |
| 801 void HandleHat(SDL_Joystick *stick, Uint8 hat, int axis, int value) | |
| 802 { | |
| 803 struct hwdata_hat *the_hat; | |
| 804 const Uint8 position_map[3][3] = { | |
| 805 { SDL_HAT_LEFTUP, SDL_HAT_UP, SDL_HAT_RIGHTUP }, | |
| 806 { SDL_HAT_LEFT, SDL_HAT_CENTERED, SDL_HAT_RIGHT }, | |
| 807 { SDL_HAT_LEFTDOWN, SDL_HAT_DOWN, SDL_HAT_RIGHTDOWN } | |
| 808 }; | |
|
892
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
809 SDL_logical_joydecl(SDL_Joystick *logicaljoy = NULL); |
|
953
cb5e1d0cad31
Backing out new changes, at Chris Nelson's request.
Sam Lantinga <slouken@libsdl.org>
parents:
914
diff
changeset
|
810 SDL_logical_joydecl(struct joystick_logical_values* hats = NULL); |
| 0 | 811 |
| 812 the_hat = &stick->hwdata->hats[hat]; | |
| 813 if ( value < 0 ) { | |
| 814 value = 0; | |
| 815 } else | |
| 816 if ( value == 0 ) { | |
| 817 value = 1; | |
| 818 } else | |
| 819 if ( value > 0 ) { | |
| 820 value = 2; | |
| 821 } | |
| 822 if ( value != the_hat->axis[axis] ) { | |
| 823 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
|
824 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
825 #ifndef NO_LOGICAL_JOYSTICKS |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
826 /* 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
|
827 */ |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
828 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
|
829 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
830 /* 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
|
831 */ |
|
953
cb5e1d0cad31
Backing out new changes, at Chris Nelson's request.
Sam Lantinga <slouken@libsdl.org>
parents:
914
diff
changeset
|
832 hats = SDL_joylist[stick->index].map->hats+hat; |
|
892
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
833 logicaljoy = FindLogicalJoystick(stick, hats); |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
834 } |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
835 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
836 if (logicaljoy) { |
|
dc29e5907694
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837 stick = logicaljoy; |
|
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838 hat = hats->nthing; |
|
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839 } |
|
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840 #endif /* USE_LOGICAL_JOYSTICKS */ |
|
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|
841 |
| 0 | 842 SDL_PrivateJoystickHat(stick, hat, |
| 843 position_map[the_hat->axis[1]][the_hat->axis[0]]); | |
| 844 } | |
| 845 } | |
| 846 | |
| 847 static __inline__ | |
| 848 void HandleBall(SDL_Joystick *stick, Uint8 ball, int axis, int value) | |
| 849 { | |
| 850 stick->hwdata->balls[ball].axis[axis] += value; | |
| 851 } | |
| 852 | |
| 853 /* Function to update the state of a joystick - called as a device poll. | |
| 854 * This function shouldn't update the joystick structure directly, | |
| 855 * but instead should call SDL_PrivateJoystick*() to deliver events | |
| 856 * and update joystick device state. | |
| 857 */ | |
| 858 static __inline__ void JS_HandleEvents(SDL_Joystick *joystick) | |
| 859 { | |
| 860 struct js_event events[32]; | |
| 861 int i, len; | |
| 862 Uint8 other_axis; | |
| 863 | |
|
892
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|
864 #ifndef NO_LOGICAL_JOYSTICKS |
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865 if (SDL_joylist[joystick->index].fname == NULL) { |
|
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866 SDL_joylist_head(i, joystick->index); |
|
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867 return JS_HandleEvents(SDL_joylist[i].joy); |
|
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868 } |
|
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869 #endif |
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|
870 |
| 0 | 871 while ((len=read(joystick->hwdata->fd, events, (sizeof events))) > 0) { |
| 872 len /= sizeof(events[0]); | |
| 873 for ( i=0; i<len; ++i ) { | |
| 874 switch (events[i].type & ~JS_EVENT_INIT) { | |
| 875 case JS_EVENT_AXIS: | |
| 876 if ( events[i].number < joystick->naxes ) { | |
|
892
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877 #ifndef NO_LOGICAL_JOYSTICKS |
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878 if (!LogicalJoystickAxis(joystick, |
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879 events[i].number, events[i].value)) |
|
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880 #endif |
| 0 | 881 SDL_PrivateJoystickAxis(joystick, |
| 882 events[i].number, events[i].value); | |
| 883 break; | |
| 884 } | |
| 885 events[i].number -= joystick->naxes; | |
|
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886 other_axis = (events[i].number / 2); |
|
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Removed obsolete Linux joystick code
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|
887 if ( other_axis < joystick->nhats ) { |
|
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Removed obsolete Linux joystick code
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|
888 HandleHat(joystick, other_axis, |
|
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Removed obsolete Linux joystick code
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|
889 events[i].number%2, |
|
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Removed obsolete Linux joystick code
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|
890 events[i].value); |
|
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|
891 break; |
| 0 | 892 } |
| 893 events[i].number -= joystick->nhats*2; | |
| 894 other_axis = (events[i].number / 2); | |
| 895 if ( other_axis < joystick->nballs ) { | |
| 896 HandleBall(joystick, other_axis, | |
| 897 events[i].number%2, | |
| 898 events[i].value); | |
| 899 break; | |
| 900 } | |
| 901 break; | |
| 902 case JS_EVENT_BUTTON: | |
|
892
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|
903 #ifndef NO_LOGICAL_JOYSTICKS |
|
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904 if (!LogicalJoystickButton(joystick, |
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905 events[i].number, events[i].value)) |
|
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906 #endif |
| 0 | 907 SDL_PrivateJoystickButton(joystick, |
| 908 events[i].number, events[i].value); | |
| 909 break; | |
| 910 default: | |
| 911 /* ?? */ | |
| 912 break; | |
| 913 } | |
| 914 } | |
| 915 } | |
| 916 } | |
|
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917 #if SDL_INPUT_LINUXEV |
| 0 | 918 static __inline__ int EV_AxisCorrect(SDL_Joystick *joystick, int which, int value) |
| 919 { | |
| 920 struct axis_correct *correct; | |
| 921 | |
| 922 correct = &joystick->hwdata->abs_correct[which]; | |
| 923 if ( correct->used ) { | |
| 924 if ( value > correct->coef[0] ) { | |
| 925 if ( value < correct->coef[1] ) { | |
| 926 return 0; | |
| 927 } | |
| 928 value -= correct->coef[1]; | |
| 929 } else { | |
| 930 value -= correct->coef[0]; | |
| 931 } | |
| 932 value *= correct->coef[2]; | |
| 933 value >>= 14; | |
| 934 } | |
|
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935 |
| 0 | 936 /* Clamp and return */ |
| 1275 | 937 if ( value < -32768 ) return -32768; |
|
554
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938 if ( value > 32767 ) return 32767; |
|
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939 |
| 0 | 940 return value; |
| 941 } | |
| 942 | |
| 943 static __inline__ void EV_HandleEvents(SDL_Joystick *joystick) | |
| 944 { | |
| 945 struct input_event events[32]; | |
| 946 int i, len; | |
| 947 int code; | |
| 948 | |
|
892
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949 #ifndef NO_LOGICAL_JOYSTICKS |
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950 if (SDL_joylist[joystick->index].fname == NULL) { |
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951 SDL_joylist_head(i, joystick->index); |
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952 return EV_HandleEvents(SDL_joylist[i].joy); |
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953 } |
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954 #endif |
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955 |
| 0 | 956 while ((len=read(joystick->hwdata->fd, events, (sizeof events))) > 0) { |
| 957 len /= sizeof(events[0]); | |
| 958 for ( i=0; i<len; ++i ) { | |
| 959 code = events[i].code; | |
| 960 switch (events[i].type) { | |
| 961 case EV_KEY: | |
| 962 if ( code >= BTN_MISC ) { | |
| 963 code -= BTN_MISC; | |
|
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964 #ifndef NO_LOGICAL_JOYSTICKS |
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965 if (!LogicalJoystickButton(joystick, |
|
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966 joystick->hwdata->key_map[code], |
|
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967 events[i].value)) |
|
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968 #endif |
| 0 | 969 SDL_PrivateJoystickButton(joystick, |
| 970 joystick->hwdata->key_map[code], | |
| 971 events[i].value); | |
| 972 } | |
| 973 break; | |
| 974 case EV_ABS: | |
| 975 switch (code) { | |
| 976 case ABS_HAT0X: | |
| 977 case ABS_HAT0Y: | |
| 978 case ABS_HAT1X: | |
| 979 case ABS_HAT1Y: | |
| 980 case ABS_HAT2X: | |
| 981 case ABS_HAT2Y: | |
| 982 case ABS_HAT3X: | |
| 983 case ABS_HAT3Y: | |
| 984 code -= ABS_HAT0X; | |
| 985 HandleHat(joystick, code/2, code%2, | |
| 986 events[i].value); | |
| 987 break; | |
| 988 default: | |
| 989 events[i].value = EV_AxisCorrect(joystick, code, events[i].value); | |
|
892
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990 #ifndef NO_LOGICAL_JOYSTICKS |
|
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991 if (!LogicalJoystickAxis(joystick, |
|
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992 joystick->hwdata->abs_map[code], |
|
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993 events[i].value)) |
|
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994 #endif |
| 0 | 995 SDL_PrivateJoystickAxis(joystick, |
| 996 joystick->hwdata->abs_map[code], | |
| 997 events[i].value); | |
| 998 break; | |
| 999 } | |
| 1000 break; | |
| 1001 case EV_REL: | |
| 1002 switch (code) { | |
| 1003 case REL_X: | |
| 1004 case REL_Y: | |
| 1005 code -= REL_X; | |
| 1006 HandleBall(joystick, code/2, code%2, | |
| 1007 events[i].value); | |
| 1008 break; | |
| 1009 default: | |
| 1010 break; | |
| 1011 } | |
| 1012 break; | |
| 1013 default: | |
| 1014 break; | |
| 1015 } | |
| 1016 } | |
| 1017 } | |
| 1018 } | |
|
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1019 #endif /* SDL_INPUT_LINUXEV */ |
| 0 | 1020 |
| 1021 void SDL_SYS_JoystickUpdate(SDL_Joystick *joystick) | |
| 1022 { | |
| 1023 int i; | |
| 1024 | |
|
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|
1025 #if SDL_INPUT_LINUXEV |
| 0 | 1026 if ( joystick->hwdata->is_hid ) |
| 1027 EV_HandleEvents(joystick); | |
| 1028 else | |
| 1029 #endif | |
| 1030 JS_HandleEvents(joystick); | |
| 1031 | |
| 1032 /* Deliver ball motion updates */ | |
| 1033 for ( i=0; i<joystick->nballs; ++i ) { | |
| 1034 int xrel, yrel; | |
| 1035 | |
| 1036 xrel = joystick->hwdata->balls[i].axis[0]; | |
| 1037 yrel = joystick->hwdata->balls[i].axis[1]; | |
| 1038 if ( xrel || yrel ) { | |
| 1039 joystick->hwdata->balls[i].axis[0] = 0; | |
| 1040 joystick->hwdata->balls[i].axis[1] = 0; | |
| 1041 SDL_PrivateJoystickBall(joystick, (Uint8)i, xrel, yrel); | |
| 1042 } | |
| 1043 } | |
| 1044 } | |
| 1045 | |
| 1046 /* Function to close a joystick after use */ | |
| 1047 void SDL_SYS_JoystickClose(SDL_Joystick *joystick) | |
| 1048 { | |
|
892
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1049 #ifndef NO_LOGICAL_JOYSTICKS |
|
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|
1050 register int i; |
|
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1051 if (SDL_joylist[joystick->index].fname == NULL) { |
|
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1052 SDL_joylist_head(i, joystick->index); |
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1053 SDL_JoystickClose(SDL_joylist[i].joy); |
|
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1054 } |
|
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1055 #endif |
|
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|
1056 |
| 0 | 1057 if ( joystick->hwdata ) { |
|
892
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|
1058 #ifndef NO_LOGICAL_JOYSTICKS |
|
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1059 if (SDL_joylist[joystick->index].fname != NULL) |
|
dc29e5907694
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1060 #endif |
| 0 | 1061 close(joystick->hwdata->fd); |
| 1062 if ( joystick->hwdata->hats ) { | |
|
1336
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Use SDL_ prefixed versions of C library functions.
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|
1063 SDL_free(joystick->hwdata->hats); |
| 0 | 1064 } |
| 1065 if ( joystick->hwdata->balls ) { | |
|
1336
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Use SDL_ prefixed versions of C library functions.
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|
1066 SDL_free(joystick->hwdata->balls); |
| 0 | 1067 } |
|
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
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changeset
|
1068 SDL_free(joystick->hwdata); |
| 0 | 1069 joystick->hwdata = NULL; |
| 1070 } | |
| 1071 } | |
| 1072 | |
| 1073 /* Function to perform any system-specific joystick related cleanup */ | |
| 1074 void SDL_SYS_JoystickQuit(void) | |
| 1075 { | |
| 1076 int i; | |
| 1077 | |
|
892
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|
1078 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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|
1079 SDL_free(SDL_joylist[i].fname); |
| 0 | 1080 } |
|
892
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|
1081 SDL_joylist[0].fname = NULL; |
| 0 | 1082 } |
| 1083 |