Mercurial > sdl-ios-xcode
annotate src/joystick/linux/SDL_sysjoystick.c @ 1338:604d73db6802
Removed uses of stdlib.h and string.h
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Tue, 07 Feb 2006 09:29:18 +0000 |
| parents | 3692456e7b0f |
| children | c71e05b4dc2e |
| 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> |
| 34 #ifdef USE_INPUT_EVENTS | |
| 35 #include <linux/input.h> | |
| 36 #endif | |
| 37 | |
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38 #include "SDL_stdlib.h" |
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39 #include "SDL_string.h" |
| 0 | 40 #include "SDL_error.h" |
| 41 #include "SDL_joystick.h" | |
| 42 #include "SDL_sysjoystick.h" | |
| 43 #include "SDL_joystick_c.h" | |
| 44 | |
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45 /* Special joystick configurations */ |
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46 static struct { |
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47 const char *name; |
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48 int naxes; |
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49 int nhats; |
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50 int nballs; |
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51 } special_joysticks[] = { |
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52 { "MadCatz Panther XL", 3, 2, 1 }, /* We don't handle rudder (axis 8) */ |
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53 { "SideWinder Precision Pro", 4, 1, 0 }, |
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54 { "SideWinder 3D Pro", 4, 1, 0 }, |
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55 { "Microsoft SideWinder 3D Pro", 4, 1, 0 }, |
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56 { "Microsoft SideWinder Dual Strike USB version 1.0", 2, 1, 0 }, |
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57 { "WingMan Interceptor", 3, 3, 0 }, |
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58 { "WingMan Extreme Digital 3D", 4, 1, 0 }, |
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59 { "Microsoft SideWinder Precision 2 Joystick", 4, 1, 0 }, |
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60 { "Logitech Inc. WingMan Extreme Digital 3D", 4, 1, 0 }, |
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61 { "Saitek Saitek X45", 6, 1, 0 } |
| 0 | 62 }; |
| 63 | |
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64 #ifndef NO_LOGICAL_JOYSTICKS |
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65 |
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66 static struct joystick_logical_values { |
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67 int njoy; |
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68 int nthing; |
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69 } joystick_logical_values[] = { |
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70 |
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71 /* +0 */ |
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72 /* MP-8800 axes map - map to {logical joystick #, logical axis #} */ |
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73 {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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74 {3,0},{3,1},{3,2},{3,3},{0,4},{1,4},{2,4}, |
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75 |
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76 /* +19 */ |
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77 /* MP-8800 hat map - map to {logical joystick #, logical hat #} */ |
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78 {0,0},{1,0},{2,0},{3,0}, |
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79 |
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80 /* +23 */ |
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81 /* MP-8800 button map - map to {logical joystick #, logical button #} */ |
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82 {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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83 {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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84 {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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85 {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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86 }; |
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87 |
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88 static struct joystick_logical_layout { |
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89 int naxes; |
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90 int nhats; |
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91 int nballs; |
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92 int nbuttons; |
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93 } joystick_logical_layout[] = { |
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94 /* MP-8800 logical layout */ |
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95 {5, 1, 0, 12}, |
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96 {5, 1, 0, 12}, |
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97 {5, 1, 0, 12}, |
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98 {4, 1, 0, 12} |
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99 }; |
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100 |
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101 /* |
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102 Some USB HIDs show up as a single joystick even though they actually |
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103 control 2 or more joysticks. This array sets up a means of mapping |
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104 a single physical joystick to multiple logical joysticks. (djm) |
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105 |
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106 njoys |
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107 the number of logical joysticks |
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108 |
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109 layouts |
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110 an array of layout structures, one to describe each logical joystick |
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111 |
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112 axes, hats, balls, buttons |
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113 arrays that map a physical thingy to a logical thingy |
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114 */ |
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115 static struct joystick_logicalmap { |
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116 const char *name; |
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117 int njoys; |
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118 struct joystick_logical_layout *layouts; |
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119 struct joystick_logical_values *axes; |
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120 struct joystick_logical_values *hats; |
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121 struct joystick_logical_values *balls; |
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122 struct joystick_logical_values *buttons; |
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123 |
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124 } joystick_logicalmap[] = { |
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125 {"WiseGroup.,Ltd MP-8800 Quad USB Joypad", 4, joystick_logical_layout, |
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126 joystick_logical_values, joystick_logical_values+19, NULL, |
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127 joystick_logical_values+23} |
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128 }; |
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129 |
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130 /* find the head of a linked list, given a point in it |
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131 */ |
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132 #define SDL_joylist_head(i, start)\ |
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133 for(i = start; SDL_joylist[i].fname == NULL;) i = SDL_joylist[i].prev; |
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134 |
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135 #define SDL_logical_joydecl(d) d |
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136 |
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137 |
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138 #else |
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139 |
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140 #define SDL_logical_joydecl(d) |
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141 |
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142 #endif /* USE_LOGICAL_JOYSTICKS */ |
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143 |
| 0 | 144 /* The maximum number of joysticks we'll detect */ |
| 145 #define MAX_JOYSTICKS 32 | |
| 146 | |
| 147 /* A list of available joysticks */ | |
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148 static struct |
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149 { |
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150 char* fname; |
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151 #ifndef NO_LOGICAL_JOYSTICKS |
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152 SDL_Joystick* joy; |
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153 struct joystick_logicalmap* map; |
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154 int prev; |
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155 int next; |
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156 int logicalno; |
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157 #endif /* USE_LOGICAL_JOYSTICKS */ |
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158 } SDL_joylist[MAX_JOYSTICKS]; |
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159 |
| 0 | 160 |
| 161 /* The private structure used to keep track of a joystick */ | |
| 162 struct joystick_hwdata { | |
| 163 int fd; | |
| 164 /* The current linux joystick driver maps hats to two axes */ | |
| 165 struct hwdata_hat { | |
| 166 int axis[2]; | |
| 167 } *hats; | |
| 168 /* The current linux joystick driver maps balls to two axes */ | |
| 169 struct hwdata_ball { | |
| 170 int axis[2]; | |
| 171 } *balls; | |
| 172 | |
| 173 /* Support for the Linux 2.4 unified input interface */ | |
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174 #ifdef USE_INPUT_EVENTS |
| 0 | 175 SDL_bool is_hid; |
| 176 Uint8 key_map[KEY_MAX-BTN_MISC]; | |
| 177 Uint8 abs_map[ABS_MAX]; | |
| 178 struct axis_correct { | |
| 179 int used; | |
| 180 int coef[3]; | |
| 181 } abs_correct[ABS_MAX]; | |
| 182 #endif | |
| 183 }; | |
| 184 | |
| 185 static char *mystrdup(const char *string) | |
| 186 { | |
| 187 char *newstring; | |
| 188 | |
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189 newstring = (char *)SDL_malloc(SDL_strlen(string)+1); |
| 0 | 190 if ( newstring ) { |
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191 SDL_strcpy(newstring, string); |
| 0 | 192 } |
| 193 return(newstring); | |
| 194 } | |
| 195 | |
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196 |
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197 #ifndef NO_LOGICAL_JOYSTICKS |
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198 |
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199 static int CountLogicalJoysticks(int max) |
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200 { |
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201 register int i, j, k, ret, prev; |
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202 const char* name; |
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203 |
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204 ret = 0; |
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205 |
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206 for(i = 0; i < max; i++) { |
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207 name = SDL_SYS_JoystickName(i); |
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208 |
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209 if (name) { |
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210 for(j = 0; j < SDL_TABLESIZE(joystick_logicalmap); j++) { |
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211 if (!SDL_strcmp(name, joystick_logicalmap[j].name)) { |
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212 |
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213 prev = i; |
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214 SDL_joylist[prev].map = joystick_logicalmap+j; |
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215 |
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216 for(k = 1; k < joystick_logicalmap[j].njoys; k++) { |
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217 SDL_joylist[prev].next = max + ret; |
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218 |
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219 if (prev != i) |
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220 SDL_joylist[max+ret].prev = prev; |
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221 |
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222 prev = max + ret; |
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223 SDL_joylist[prev].logicalno = k; |
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224 SDL_joylist[prev].map = joystick_logicalmap+j; |
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225 ret++; |
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226 } |
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227 |
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228 break; |
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229 } |
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230 } |
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231 } |
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232 } |
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233 |
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234 return ret; |
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235 } |
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236 |
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237 static void LogicalSuffix(int logicalno, char* namebuf, int len) |
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238 { |
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239 register int slen; |
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240 const static char suffixs[] = |
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241 "01020304050607080910111213141516171819" |
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242 "20212223242526272829303132"; |
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243 const char* suffix; |
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244 |
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245 slen = SDL_strlen(namebuf); |
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246 |
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247 suffix = NULL; |
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248 |
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249 if (logicalno*2<sizeof(suffixs)) |
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250 suffix = suffixs + (logicalno*2); |
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251 |
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252 if (slen + 4 < len && suffix) { |
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253 namebuf[slen++] = ' '; |
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254 namebuf[slen++] = '#'; |
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255 namebuf[slen++] = suffix[0]; |
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256 namebuf[slen++] = suffix[1]; |
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257 namebuf[slen++] = 0; |
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258 } |
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259 } |
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260 |
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261 #endif /* USE_LOGICAL_JOYSTICKS */ |
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262 |
| 0 | 263 #ifdef USE_INPUT_EVENTS |
| 264 #define test_bit(nr, addr) \ | |
| 265 (((1UL << ((nr) & 31)) & (((const unsigned int *) addr)[(nr) >> 5])) != 0) | |
| 266 | |
| 267 static int EV_IsJoystick(int fd) | |
| 268 { | |
| 269 unsigned long evbit[40]; | |
| 270 unsigned long keybit[40]; | |
| 271 unsigned long absbit[40]; | |
| 272 | |
| 273 if ( (ioctl(fd, EVIOCGBIT(0, sizeof(evbit)), evbit) < 0) || | |
| 274 (ioctl(fd, EVIOCGBIT(EV_KEY, sizeof(keybit)), keybit) < 0) || | |
| 275 (ioctl(fd, EVIOCGBIT(EV_ABS, sizeof(absbit)), absbit) < 0) ) { | |
| 276 return(0); | |
| 277 } | |
| 278 if (!(test_bit(EV_KEY, evbit) && test_bit(EV_ABS, evbit) && | |
| 279 test_bit(ABS_X, absbit) && test_bit(ABS_Y, absbit) && | |
| 280 (test_bit(BTN_TRIGGER, keybit) || test_bit(BTN_A, keybit) || test_bit(BTN_1, keybit)))) return 0; | |
| 281 return(1); | |
| 282 } | |
| 283 | |
| 284 #endif /* USE_INPUT_EVENTS */ | |
| 285 | |
| 286 /* Function to scan the system for joysticks */ | |
| 287 int SDL_SYS_JoystickInit(void) | |
| 288 { | |
| 289 /* The base path of the joystick devices */ | |
|
245
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290 const char *joydev_pattern[] = { |
| 0 | 291 #ifdef USE_INPUT_EVENTS |
|
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292 "/dev/input/event%d", |
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293 #endif |
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294 "/dev/input/js%d", |
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295 "/dev/js%d" |
| 0 | 296 }; |
| 297 int numjoysticks; | |
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298 int i, j; |
| 0 | 299 int fd; |
| 300 char path[PATH_MAX]; | |
| 301 dev_t dev_nums[MAX_JOYSTICKS]; /* major/minor device numbers */ | |
| 302 struct stat sb; | |
| 303 int n, duplicate; | |
| 304 | |
| 305 numjoysticks = 0; | |
| 306 | |
| 307 /* First see if the user specified a joystick to use */ | |
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308 if ( SDL_getenv("SDL_JOYSTICK_DEVICE") != NULL ) { |
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309 SDL_strncpy(path, SDL_getenv("SDL_JOYSTICK_DEVICE"), sizeof(path)); |
| 0 | 310 path[sizeof(path)-1] = '\0'; |
| 311 if ( stat(path, &sb) == 0 ) { | |
| 312 fd = open(path, O_RDONLY, 0); | |
| 313 if ( fd >= 0 ) { | |
| 314 /* Assume the user knows what they're doing. */ | |
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315 SDL_joylist[numjoysticks].fname =mystrdup(path); |
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316 if ( SDL_joylist[numjoysticks].fname ) { |
| 0 | 317 dev_nums[numjoysticks] = sb.st_rdev; |
| 318 ++numjoysticks; | |
| 319 } | |
| 320 close(fd); | |
| 321 } | |
| 322 } | |
| 323 } | |
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324 |
| 0 | 325 for ( i=0; i<SDL_TABLESIZE(joydev_pattern); ++i ) { |
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326 for ( j=0; j < MAX_JOYSTICKS; ++j ) { |
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327 SDL_snprintf(path, SDL_arraysize(path), joydev_pattern[i], j); |
| 0 | 328 |
| 329 /* rcg06302000 replaced access(F_OK) call with stat(). | |
| 330 * stat() will fail if the file doesn't exist, so it's | |
| 331 * equivalent behaviour. | |
| 332 */ | |
| 333 if ( stat(path, &sb) == 0 ) { | |
| 334 /* Check to make sure it's not already in list. | |
| 335 * This happens when we see a stick via symlink. | |
| 336 */ | |
| 337 duplicate = 0; | |
| 338 for (n=0; (n<numjoysticks) && !duplicate; ++n) { | |
| 339 if ( sb.st_rdev == dev_nums[n] ) { | |
| 340 duplicate = 1; | |
| 341 } | |
| 342 } | |
| 343 if (duplicate) { | |
| 344 continue; | |
| 345 } | |
| 346 | |
| 347 fd = open(path, O_RDONLY, 0); | |
| 348 if ( fd < 0 ) { | |
| 349 continue; | |
| 350 } | |
| 351 #ifdef USE_INPUT_EVENTS | |
| 352 #ifdef DEBUG_INPUT_EVENTS | |
| 353 printf("Checking %s\n", path); | |
| 354 #endif | |
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355 if ( (i == 0) && ! EV_IsJoystick(fd) ) { |
| 0 | 356 close(fd); |
| 357 continue; | |
| 358 } | |
| 359 #endif | |
| 360 close(fd); | |
| 361 | |
| 362 /* We're fine, add this joystick */ | |
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363 SDL_joylist[numjoysticks].fname =mystrdup(path); |
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364 if ( SDL_joylist[numjoysticks].fname ) { |
| 0 | 365 dev_nums[numjoysticks] = sb.st_rdev; |
| 366 ++numjoysticks; | |
| 367 } | |
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368 } else |
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369 break; |
| 0 | 370 } |
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371 |
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372 #ifdef USE_INPUT_EVENTS |
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373 /* This is a special case... |
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374 If the event devices are valid then the joystick devices |
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375 will be duplicates but without extra information about their |
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376 hats or balls. Unfortunately, the event devices can't |
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377 currently be calibrated, so it's a win-lose situation. |
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378 So : /dev/input/eventX = /dev/input/jsY = /dev/jsY |
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379 */ |
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380 if ( (i == 0) && (numjoysticks > 0) ) |
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381 break; |
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382 #endif |
| 0 | 383 } |
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384 #ifndef NO_LOGICAL_JOYSTICKS |
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385 numjoysticks += CountLogicalJoysticks(numjoysticks); |
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386 #endif |
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387 |
| 0 | 388 return(numjoysticks); |
| 389 } | |
| 390 | |
| 391 /* Function to get the device-dependent name of a joystick */ | |
| 392 const char *SDL_SYS_JoystickName(int index) | |
| 393 { | |
| 394 int fd; | |
| 395 static char namebuf[128]; | |
| 396 char *name; | |
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397 SDL_logical_joydecl(int oindex = index); |
| 0 | 398 |
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399 #ifndef NO_LOGICAL_JOYSTICKS |
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400 SDL_joylist_head(index, index); |
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401 #endif |
| 0 | 402 name = NULL; |
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403 fd = open(SDL_joylist[index].fname, O_RDONLY, 0); |
| 0 | 404 if ( fd >= 0 ) { |
| 405 if ( | |
| 406 #ifdef USE_INPUT_EVENTS | |
| 407 (ioctl(fd, EVIOCGNAME(sizeof(namebuf)), namebuf) <= 0) && | |
| 408 #endif | |
| 409 (ioctl(fd, JSIOCGNAME(sizeof(namebuf)), namebuf) <= 0) ) { | |
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410 name = SDL_joylist[index].fname; |
| 0 | 411 } else { |
| 412 name = namebuf; | |
| 413 } | |
| 414 close(fd); | |
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415 |
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416 #ifndef NO_LOGICAL_JOYSTICKS |
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417 if (SDL_joylist[oindex].prev || SDL_joylist[oindex].next) |
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418 LogicalSuffix(SDL_joylist[oindex].logicalno, namebuf, 128); |
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419 #endif |
| 0 | 420 } |
| 421 return name; | |
| 422 } | |
| 423 | |
| 424 static int allocate_hatdata(SDL_Joystick *joystick) | |
| 425 { | |
| 426 int i; | |
| 427 | |
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428 joystick->hwdata->hats = (struct hwdata_hat *)SDL_malloc( |
| 0 | 429 joystick->nhats * sizeof(struct hwdata_hat)); |
| 430 if ( joystick->hwdata->hats == NULL ) { | |
| 431 return(-1); | |
| 432 } | |
| 433 for ( i=0; i<joystick->nhats; ++i ) { | |
| 434 joystick->hwdata->hats[i].axis[0] = 1; | |
| 435 joystick->hwdata->hats[i].axis[1] = 1; | |
| 436 } | |
| 437 return(0); | |
| 438 } | |
| 439 | |
| 440 static int allocate_balldata(SDL_Joystick *joystick) | |
| 441 { | |
| 442 int i; | |
| 443 | |
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444 joystick->hwdata->balls = (struct hwdata_ball *)SDL_malloc( |
| 0 | 445 joystick->nballs * sizeof(struct hwdata_ball)); |
| 446 if ( joystick->hwdata->balls == NULL ) { | |
| 447 return(-1); | |
| 448 } | |
| 449 for ( i=0; i<joystick->nballs; ++i ) { | |
| 450 joystick->hwdata->balls[i].axis[0] = 0; | |
| 451 joystick->hwdata->balls[i].axis[1] = 0; | |
| 452 } | |
| 453 return(0); | |
| 454 } | |
| 455 | |
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456 static SDL_bool JS_ConfigJoystick(SDL_Joystick *joystick, int fd) |
| 0 | 457 { |
| 458 SDL_bool handled; | |
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459 unsigned char n; |
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460 int old_axes, tmp_naxes, tmp_nhats, tmp_nballs; |
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461 const char *name; |
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462 char *env, env_name[128]; |
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463 int i; |
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464 |
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465 handled = SDL_FALSE; |
| 0 | 466 |
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467 /* Default joystick device settings */ |
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468 if ( ioctl(fd, JSIOCGAXES, &n) < 0 ) { |
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469 joystick->naxes = 2; |
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470 } else { |
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471 joystick->naxes = n; |
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472 } |
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473 if ( ioctl(fd, JSIOCGBUTTONS, &n) < 0 ) { |
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474 joystick->nbuttons = 2; |
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475 } else { |
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476 joystick->nbuttons = n; |
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477 } |
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478 |
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479 name = SDL_SYS_JoystickName(joystick->index); |
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480 old_axes = joystick->naxes; |
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481 |
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482 /* Generic analog joystick support */ |
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483 if ( SDL_strstr(name, "Analog") == name && SDL_strstr(name, "-hat") ) { |
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484 if ( SDL_sscanf(name,"Analog %d-axis %*d-button %d-hat", |
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485 &tmp_naxes, &tmp_nhats) == 2 ) { |
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486 |
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487 joystick->naxes = tmp_naxes; |
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488 joystick->nhats = tmp_nhats; |
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489 |
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490 handled = SDL_TRUE; |
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491 } |
| 0 | 492 } |
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493 |
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494 /* Special joystick support */ |
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495 for ( i=0; i < SDL_TABLESIZE(special_joysticks); ++i ) { |
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496 if ( SDL_strcmp(name, special_joysticks[i].name) == 0 ) { |
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497 |
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498 joystick->naxes = special_joysticks[i].naxes; |
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499 joystick->nhats = special_joysticks[i].nhats; |
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500 joystick->nballs = special_joysticks[i].nballs; |
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501 |
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502 handled = SDL_TRUE; |
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503 break; |
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504 } |
| 0 | 505 } |
|
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506 |
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507 /* User environment joystick support */ |
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508 if ( (env = SDL_getenv("SDL_LINUX_JOYSTICK")) ) { |
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509 SDL_strcpy(env_name, ""); |
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510 if ( *env == '\'' && SDL_sscanf(env, "'%[^']s'", env_name) == 1 ) |
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511 env += SDL_strlen(env_name)+2; |
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512 else if ( SDL_sscanf(env, "%s", env_name) == 1 ) |
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513 env += SDL_strlen(env_name); |
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514 |
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515 if ( SDL_strcmp(name, env_name) == 0 ) { |
| 0 | 516 |
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517 if ( SDL_sscanf(env, "%d %d %d", &tmp_naxes, &tmp_nhats, |
|
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518 &tmp_nballs) == 3 ) { |
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519 |
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520 joystick->naxes = tmp_naxes; |
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521 joystick->nhats = tmp_nhats; |
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522 joystick->nballs = tmp_nballs; |
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523 |
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524 handled = SDL_TRUE; |
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525 } |
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526 } |
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527 } |
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528 |
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529 /* Remap hats and balls */ |
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530 if (handled) { |
| 0 | 531 if ( joystick->nhats > 0 ) { |
|
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532 if ( allocate_hatdata(joystick) < 0 ) { |
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533 joystick->nhats = 0; |
| 0 | 534 } |
| 535 } | |
| 536 if ( joystick->nballs > 0 ) { | |
| 537 if ( allocate_balldata(joystick) < 0 ) { | |
| 538 joystick->nballs = 0; | |
| 539 } | |
| 540 } | |
| 541 } | |
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542 |
| 0 | 543 return(handled); |
| 544 } | |
| 545 | |
| 546 #ifdef USE_INPUT_EVENTS | |
| 547 | |
| 548 static SDL_bool EV_ConfigJoystick(SDL_Joystick *joystick, int fd) | |
| 549 { | |
| 871 | 550 int i, t; |
| 0 | 551 unsigned long keybit[40]; |
| 552 unsigned long absbit[40]; | |
| 553 unsigned long relbit[40]; | |
| 554 | |
| 555 /* See if this device uses the new unified event API */ | |
| 556 if ( (ioctl(fd, EVIOCGBIT(EV_KEY, sizeof(keybit)), keybit) >= 0) && | |
| 557 (ioctl(fd, EVIOCGBIT(EV_ABS, sizeof(absbit)), absbit) >= 0) && | |
| 558 (ioctl(fd, EVIOCGBIT(EV_REL, sizeof(relbit)), relbit) >= 0) ) { | |
| 559 joystick->hwdata->is_hid = SDL_TRUE; | |
| 560 | |
| 561 /* Get the number of buttons, axes, and other thingamajigs */ | |
| 562 for ( i=BTN_JOYSTICK; i < KEY_MAX; ++i ) { | |
| 563 if ( test_bit(i, keybit) ) { | |
| 564 #ifdef DEBUG_INPUT_EVENTS | |
| 565 printf("Joystick has button: 0x%x\n", i); | |
| 566 #endif | |
| 567 joystick->hwdata->key_map[i-BTN_MISC] = | |
| 568 joystick->nbuttons; | |
| 569 ++joystick->nbuttons; | |
| 570 } | |
| 571 } | |
| 572 for ( i=BTN_MISC; i < BTN_JOYSTICK; ++i ) { | |
| 573 if ( test_bit(i, keybit) ) { | |
| 574 #ifdef DEBUG_INPUT_EVENTS | |
| 575 printf("Joystick has button: 0x%x\n", i); | |
| 576 #endif | |
| 577 joystick->hwdata->key_map[i-BTN_MISC] = | |
| 578 joystick->nbuttons; | |
| 579 ++joystick->nbuttons; | |
| 580 } | |
| 581 } | |
| 582 for ( i=0; i<ABS_MAX; ++i ) { | |
| 583 /* Skip hats */ | |
| 584 if ( i == ABS_HAT0X ) { | |
| 585 i = ABS_HAT3Y; | |
| 586 continue; | |
| 587 } | |
| 588 if ( test_bit(i, absbit) ) { | |
| 589 int values[5]; | |
| 590 | |
|
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591 if ( ioctl(fd, EVIOCGABS(i), values) < 0 ) |
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592 continue; |
| 0 | 593 #ifdef DEBUG_INPUT_EVENTS |
| 594 printf("Joystick has absolute axis: %x\n", i); | |
| 595 printf("Values = { %d, %d, %d, %d, %d }\n", | |
| 596 values[0], values[1], | |
| 597 values[2], values[3], values[4]); | |
| 598 #endif /* DEBUG_INPUT_EVENTS */ | |
| 599 joystick->hwdata->abs_map[i] = joystick->naxes; | |
| 600 if ( values[1] == values[2] ) { | |
| 601 joystick->hwdata->abs_correct[i].used = 0; | |
| 602 } else { | |
| 603 joystick->hwdata->abs_correct[i].used = 1; | |
|
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604 joystick->hwdata->abs_correct[i].coef[0] = |
|
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605 (values[2] + values[1]) / 2 - values[4]; |
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606 joystick->hwdata->abs_correct[i].coef[1] = |
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607 (values[2] + values[1]) / 2 + values[4]; |
| 871 | 608 t = ((values[2] - values[1]) / 2 - 2 * values[4]); |
| 609 if ( t != 0 ) { | |
| 610 joystick->hwdata->abs_correct[i].coef[2] = (1 << 29) / t; | |
|
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611 } else { |
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612 joystick->hwdata->abs_correct[i].coef[2] = 0; |
| 871 | 613 } |
| 0 | 614 } |
| 615 ++joystick->naxes; | |
| 616 } | |
| 617 } | |
| 618 for ( i=ABS_HAT0X; i <= ABS_HAT3Y; i += 2 ) { | |
| 619 if ( test_bit(i, absbit) || test_bit(i+1, absbit) ) { | |
| 620 #ifdef DEBUG_INPUT_EVENTS | |
| 621 printf("Joystick has hat %d\n",(i-ABS_HAT0X)/2); | |
| 622 #endif | |
| 623 ++joystick->nhats; | |
| 624 } | |
| 625 } | |
| 626 if ( test_bit(REL_X, relbit) || test_bit(REL_Y, relbit) ) { | |
| 627 ++joystick->nballs; | |
| 628 } | |
| 629 | |
| 630 /* Allocate data to keep track of these thingamajigs */ | |
| 631 if ( joystick->nhats > 0 ) { | |
| 632 if ( allocate_hatdata(joystick) < 0 ) { | |
| 633 joystick->nhats = 0; | |
| 634 } | |
| 635 } | |
| 636 if ( joystick->nballs > 0 ) { | |
| 637 if ( allocate_balldata(joystick) < 0 ) { | |
| 638 joystick->nballs = 0; | |
| 639 } | |
| 640 } | |
| 641 } | |
| 642 return(joystick->hwdata->is_hid); | |
| 643 } | |
| 644 | |
| 645 #endif /* USE_INPUT_EVENTS */ | |
| 646 | |
|
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647 #ifndef NO_LOGICAL_JOYSTICKS |
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648 static void ConfigLogicalJoystick(SDL_Joystick *joystick) |
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649 { |
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650 struct joystick_logical_layout* layout; |
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|
651 |
|
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652 layout = SDL_joylist[joystick->index].map->layouts + |
|
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653 SDL_joylist[joystick->index].logicalno; |
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654 |
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655 joystick->nbuttons = layout->nbuttons; |
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656 joystick->nhats = layout->nhats; |
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657 joystick->naxes = layout->naxes; |
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658 joystick->nballs = layout->nballs; |
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659 } |
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660 #endif |
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661 |
|
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662 |
| 0 | 663 /* Function to open a joystick for use. |
| 664 The joystick to open is specified by the index field of the joystick. | |
| 665 This should fill the nbuttons and naxes fields of the joystick structure. | |
| 666 It returns 0, or -1 if there is an error. | |
| 667 */ | |
| 668 int SDL_SYS_JoystickOpen(SDL_Joystick *joystick) | |
| 669 { | |
| 670 int fd; | |
|
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671 SDL_logical_joydecl(int realindex); |
|
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672 SDL_logical_joydecl(SDL_Joystick *realjoy = NULL); |
| 0 | 673 |
| 674 /* Open the joystick and set the joystick file descriptor */ | |
|
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675 #ifndef NO_LOGICAL_JOYSTICKS |
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676 if (SDL_joylist[joystick->index].fname == NULL) { |
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677 SDL_joylist_head(realindex, joystick->index); |
|
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678 realjoy = SDL_JoystickOpen(realindex); |
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679 |
|
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680 if (realjoy == NULL) |
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681 return(-1); |
|
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682 |
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683 fd = realjoy->hwdata->fd; |
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684 |
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685 } else { |
|
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686 fd = open(SDL_joylist[joystick->index].fname, O_RDONLY, 0); |
|
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687 } |
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688 SDL_joylist[joystick->index].joy = joystick; |
|
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689 #else |
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690 fd = open(SDL_joylist[joystick->index].fname, O_RDONLY, 0); |
|
dc29e5907694
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691 #endif |
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|
692 |
| 0 | 693 if ( fd < 0 ) { |
| 694 SDL_SetError("Unable to open %s\n", | |
| 695 SDL_joylist[joystick->index]); | |
| 696 return(-1); | |
| 697 } | |
| 698 joystick->hwdata = (struct joystick_hwdata *) | |
|
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699 SDL_malloc(sizeof(*joystick->hwdata)); |
| 0 | 700 if ( joystick->hwdata == NULL ) { |
| 701 SDL_OutOfMemory(); | |
| 702 close(fd); | |
| 703 return(-1); | |
| 704 } | |
|
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705 SDL_memset(joystick->hwdata, 0, sizeof(*joystick->hwdata)); |
| 0 | 706 joystick->hwdata->fd = fd; |
| 707 | |
| 708 /* Set the joystick to non-blocking read mode */ | |
| 709 fcntl(fd, F_SETFL, O_NONBLOCK); | |
| 710 | |
| 711 /* Get the number of buttons and axes on the joystick */ | |
|
892
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712 #ifndef NO_LOGICAL_JOYSTICKS |
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713 if (realjoy) |
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714 ConfigLogicalJoystick(joystick); |
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715 else |
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716 #endif |
| 0 | 717 #ifdef USE_INPUT_EVENTS |
| 718 if ( ! EV_ConfigJoystick(joystick, fd) ) | |
| 719 #endif | |
|
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Linux joystick cleanups from Alan Swanson
Sam Lantinga <slouken@libsdl.org>
parents:
408
diff
changeset
|
720 JS_ConfigJoystick(joystick, fd); |
|
38b1a98aeb11
Linux joystick cleanups from Alan Swanson
Sam Lantinga <slouken@libsdl.org>
parents:
408
diff
changeset
|
721 |
| 0 | 722 return(0); |
| 723 } | |
| 724 | |
|
892
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
725 #ifndef NO_LOGICAL_JOYSTICKS |
|
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 static SDL_Joystick* FindLogicalJoystick( |
|
953
cb5e1d0cad31
Backing out new changes, at Chris Nelson's request.
Sam Lantinga <slouken@libsdl.org>
parents:
914
diff
changeset
|
728 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
|
729 { |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
730 SDL_Joystick *logicaljoy; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
731 register int i; |
|
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 i = joystick->index; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
734 logicaljoy = NULL; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
735 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
736 /* 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
|
737 */ |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
738 for(;;) { |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
739 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
740 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
|
741 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
|
742 break; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
743 } |
|
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 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
|
746 break; |
|
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 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
|
749 |
|
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 return logicaljoy; |
|
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 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
755 static int LogicalJoystickButton( |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
756 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
|
757 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
|
758 SDL_Joystick *logicaljoy = NULL; |
|
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 /* 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
|
761 */ |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
762 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
|
763 return 0; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
764 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
765 /* 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
|
766 */ |
|
953
cb5e1d0cad31
Backing out new changes, at Chris Nelson's request.
Sam Lantinga <slouken@libsdl.org>
parents:
914
diff
changeset
|
767 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
|
768 logicaljoy = FindLogicalJoystick(joystick, buttons); |
|
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 if (logicaljoy == NULL) |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
771 return 1; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
772 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
773 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
|
774 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
775 return 1; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
776 } |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
777 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
778 static int LogicalJoystickAxis( |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
779 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
|
780 { |
|
953
cb5e1d0cad31
Backing out new changes, at Chris Nelson's request.
Sam Lantinga <slouken@libsdl.org>
parents:
914
diff
changeset
|
781 struct joystick_logical_values* axes; |
|
892
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
782 SDL_Joystick *logicaljoy = NULL; |
|
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 /* 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
|
785 */ |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
786 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
|
787 return 0; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
788 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
789 /* 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
|
790 */ |
|
953
cb5e1d0cad31
Backing out new changes, at Chris Nelson's request.
Sam Lantinga <slouken@libsdl.org>
parents:
914
diff
changeset
|
791 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
|
792 logicaljoy = FindLogicalJoystick(joystick, axes); |
|
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 if (logicaljoy == NULL) |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
795 return 1; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
796 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
797 SDL_PrivateJoystickAxis(logicaljoy, axes->nthing, value); |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
798 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
799 return 1; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
800 } |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
801 #endif /* USE_LOGICAL_JOYSTICKS */ |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
802 |
| 0 | 803 static __inline__ |
| 804 void HandleHat(SDL_Joystick *stick, Uint8 hat, int axis, int value) | |
| 805 { | |
| 806 struct hwdata_hat *the_hat; | |
| 807 const Uint8 position_map[3][3] = { | |
| 808 { SDL_HAT_LEFTUP, SDL_HAT_UP, SDL_HAT_RIGHTUP }, | |
| 809 { SDL_HAT_LEFT, SDL_HAT_CENTERED, SDL_HAT_RIGHT }, | |
| 810 { SDL_HAT_LEFTDOWN, SDL_HAT_DOWN, SDL_HAT_RIGHTDOWN } | |
| 811 }; | |
|
892
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
812 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
|
813 SDL_logical_joydecl(struct joystick_logical_values* hats = NULL); |
| 0 | 814 |
| 815 the_hat = &stick->hwdata->hats[hat]; | |
| 816 if ( value < 0 ) { | |
| 817 value = 0; | |
| 818 } else | |
| 819 if ( value == 0 ) { | |
| 820 value = 1; | |
| 821 } else | |
| 822 if ( value > 0 ) { | |
| 823 value = 2; | |
| 824 } | |
| 825 if ( value != the_hat->axis[axis] ) { | |
| 826 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
|
827 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
828 #ifndef NO_LOGICAL_JOYSTICKS |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
829 /* 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
|
830 */ |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
831 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
|
832 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
833 /* 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
|
834 */ |
|
953
cb5e1d0cad31
Backing out new changes, at Chris Nelson's request.
Sam Lantinga <slouken@libsdl.org>
parents:
914
diff
changeset
|
835 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
|
836 logicaljoy = FindLogicalJoystick(stick, hats); |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
837 } |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
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 if (logicaljoy) { |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
840 stick = logicaljoy; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
841 hat = hats->nthing; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
842 } |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
843 #endif /* USE_LOGICAL_JOYSTICKS */ |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
844 |
| 0 | 845 SDL_PrivateJoystickHat(stick, hat, |
| 846 position_map[the_hat->axis[1]][the_hat->axis[0]]); | |
| 847 } | |
| 848 } | |
| 849 | |
| 850 static __inline__ | |
| 851 void HandleBall(SDL_Joystick *stick, Uint8 ball, int axis, int value) | |
| 852 { | |
| 853 stick->hwdata->balls[ball].axis[axis] += value; | |
| 854 } | |
| 855 | |
| 856 /* Function to update the state of a joystick - called as a device poll. | |
| 857 * This function shouldn't update the joystick structure directly, | |
| 858 * but instead should call SDL_PrivateJoystick*() to deliver events | |
| 859 * and update joystick device state. | |
| 860 */ | |
| 861 static __inline__ void JS_HandleEvents(SDL_Joystick *joystick) | |
| 862 { | |
| 863 struct js_event events[32]; | |
| 864 int i, len; | |
| 865 Uint8 other_axis; | |
| 866 | |
|
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867 #ifndef NO_LOGICAL_JOYSTICKS |
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868 if (SDL_joylist[joystick->index].fname == NULL) { |
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869 SDL_joylist_head(i, joystick->index); |
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870 return JS_HandleEvents(SDL_joylist[i].joy); |
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871 } |
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872 #endif |
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873 |
| 0 | 874 while ((len=read(joystick->hwdata->fd, events, (sizeof events))) > 0) { |
| 875 len /= sizeof(events[0]); | |
| 876 for ( i=0; i<len; ++i ) { | |
| 877 switch (events[i].type & ~JS_EVENT_INIT) { | |
| 878 case JS_EVENT_AXIS: | |
| 879 if ( events[i].number < joystick->naxes ) { | |
|
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880 #ifndef NO_LOGICAL_JOYSTICKS |
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881 if (!LogicalJoystickAxis(joystick, |
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882 events[i].number, events[i].value)) |
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883 #endif |
| 0 | 884 SDL_PrivateJoystickAxis(joystick, |
| 885 events[i].number, events[i].value); | |
| 886 break; | |
| 887 } | |
| 888 events[i].number -= joystick->naxes; | |
|
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889 other_axis = (events[i].number / 2); |
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890 if ( other_axis < joystick->nhats ) { |
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891 HandleHat(joystick, other_axis, |
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892 events[i].number%2, |
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893 events[i].value); |
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894 break; |
| 0 | 895 } |
| 896 events[i].number -= joystick->nhats*2; | |
| 897 other_axis = (events[i].number / 2); | |
| 898 if ( other_axis < joystick->nballs ) { | |
| 899 HandleBall(joystick, other_axis, | |
| 900 events[i].number%2, | |
| 901 events[i].value); | |
| 902 break; | |
| 903 } | |
| 904 break; | |
| 905 case JS_EVENT_BUTTON: | |
|
892
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906 #ifndef NO_LOGICAL_JOYSTICKS |
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907 if (!LogicalJoystickButton(joystick, |
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908 events[i].number, events[i].value)) |
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909 #endif |
| 0 | 910 SDL_PrivateJoystickButton(joystick, |
| 911 events[i].number, events[i].value); | |
| 912 break; | |
| 913 default: | |
| 914 /* ?? */ | |
| 915 break; | |
| 916 } | |
| 917 } | |
| 918 } | |
| 919 } | |
| 920 #ifdef USE_INPUT_EVENTS | |
| 921 static __inline__ int EV_AxisCorrect(SDL_Joystick *joystick, int which, int value) | |
| 922 { | |
| 923 struct axis_correct *correct; | |
| 924 | |
| 925 correct = &joystick->hwdata->abs_correct[which]; | |
| 926 if ( correct->used ) { | |
| 927 if ( value > correct->coef[0] ) { | |
| 928 if ( value < correct->coef[1] ) { | |
| 929 return 0; | |
| 930 } | |
| 931 value -= correct->coef[1]; | |
| 932 } else { | |
| 933 value -= correct->coef[0]; | |
| 934 } | |
| 935 value *= correct->coef[2]; | |
| 936 value >>= 14; | |
| 937 } | |
|
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938 |
| 0 | 939 /* Clamp and return */ |
| 1275 | 940 if ( value < -32768 ) return -32768; |
|
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941 if ( value > 32767 ) return 32767; |
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942 |
| 0 | 943 return value; |
| 944 } | |
| 945 | |
| 946 static __inline__ void EV_HandleEvents(SDL_Joystick *joystick) | |
| 947 { | |
| 948 struct input_event events[32]; | |
| 949 int i, len; | |
| 950 int code; | |
| 951 | |
|
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952 #ifndef NO_LOGICAL_JOYSTICKS |
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953 if (SDL_joylist[joystick->index].fname == NULL) { |
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954 SDL_joylist_head(i, joystick->index); |
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955 return EV_HandleEvents(SDL_joylist[i].joy); |
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956 } |
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957 #endif |
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958 |
| 0 | 959 while ((len=read(joystick->hwdata->fd, events, (sizeof events))) > 0) { |
| 960 len /= sizeof(events[0]); | |
| 961 for ( i=0; i<len; ++i ) { | |
| 962 code = events[i].code; | |
| 963 switch (events[i].type) { | |
| 964 case EV_KEY: | |
| 965 if ( code >= BTN_MISC ) { | |
| 966 code -= BTN_MISC; | |
|
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967 #ifndef NO_LOGICAL_JOYSTICKS |
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968 if (!LogicalJoystickButton(joystick, |
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969 joystick->hwdata->key_map[code], |
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970 events[i].value)) |
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971 #endif |
| 0 | 972 SDL_PrivateJoystickButton(joystick, |
| 973 joystick->hwdata->key_map[code], | |
| 974 events[i].value); | |
| 975 } | |
| 976 break; | |
| 977 case EV_ABS: | |
| 978 switch (code) { | |
| 979 case ABS_HAT0X: | |
| 980 case ABS_HAT0Y: | |
| 981 case ABS_HAT1X: | |
| 982 case ABS_HAT1Y: | |
| 983 case ABS_HAT2X: | |
| 984 case ABS_HAT2Y: | |
| 985 case ABS_HAT3X: | |
| 986 case ABS_HAT3Y: | |
| 987 code -= ABS_HAT0X; | |
| 988 HandleHat(joystick, code/2, code%2, | |
| 989 events[i].value); | |
| 990 break; | |
| 991 default: | |
| 992 events[i].value = EV_AxisCorrect(joystick, code, events[i].value); | |
|
892
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993 #ifndef NO_LOGICAL_JOYSTICKS |
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994 if (!LogicalJoystickAxis(joystick, |
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995 joystick->hwdata->abs_map[code], |
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996 events[i].value)) |
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997 #endif |
| 0 | 998 SDL_PrivateJoystickAxis(joystick, |
| 999 joystick->hwdata->abs_map[code], | |
| 1000 events[i].value); | |
| 1001 break; | |
| 1002 } | |
| 1003 break; | |
| 1004 case EV_REL: | |
| 1005 switch (code) { | |
| 1006 case REL_X: | |
| 1007 case REL_Y: | |
| 1008 code -= REL_X; | |
| 1009 HandleBall(joystick, code/2, code%2, | |
| 1010 events[i].value); | |
| 1011 break; | |
| 1012 default: | |
| 1013 break; | |
| 1014 } | |
| 1015 break; | |
| 1016 default: | |
| 1017 break; | |
| 1018 } | |
| 1019 } | |
| 1020 } | |
| 1021 } | |
| 1022 #endif /* USE_INPUT_EVENTS */ | |
| 1023 | |
| 1024 void SDL_SYS_JoystickUpdate(SDL_Joystick *joystick) | |
| 1025 { | |
| 1026 int i; | |
| 1027 | |
| 1028 #ifdef USE_INPUT_EVENTS | |
| 1029 if ( joystick->hwdata->is_hid ) | |
| 1030 EV_HandleEvents(joystick); | |
| 1031 else | |
| 1032 #endif | |
| 1033 JS_HandleEvents(joystick); | |
| 1034 | |
| 1035 /* Deliver ball motion updates */ | |
| 1036 for ( i=0; i<joystick->nballs; ++i ) { | |
| 1037 int xrel, yrel; | |
| 1038 | |
| 1039 xrel = joystick->hwdata->balls[i].axis[0]; | |
| 1040 yrel = joystick->hwdata->balls[i].axis[1]; | |
| 1041 if ( xrel || yrel ) { | |
| 1042 joystick->hwdata->balls[i].axis[0] = 0; | |
| 1043 joystick->hwdata->balls[i].axis[1] = 0; | |
| 1044 SDL_PrivateJoystickBall(joystick, (Uint8)i, xrel, yrel); | |
| 1045 } | |
| 1046 } | |
| 1047 } | |
| 1048 | |
| 1049 /* Function to close a joystick after use */ | |
| 1050 void SDL_SYS_JoystickClose(SDL_Joystick *joystick) | |
| 1051 { | |
|
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1052 #ifndef NO_LOGICAL_JOYSTICKS |
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1053 register int i; |
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1054 if (SDL_joylist[joystick->index].fname == NULL) { |
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1055 SDL_joylist_head(i, joystick->index); |
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1056 SDL_JoystickClose(SDL_joylist[i].joy); |
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1057 } |
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1058 #endif |
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1059 |
| 0 | 1060 if ( joystick->hwdata ) { |
|
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1061 #ifndef NO_LOGICAL_JOYSTICKS |
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1062 if (SDL_joylist[joystick->index].fname != NULL) |
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1063 #endif |
| 0 | 1064 close(joystick->hwdata->fd); |
| 1065 if ( joystick->hwdata->hats ) { | |
|
1336
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1066 SDL_free(joystick->hwdata->hats); |
| 0 | 1067 } |
| 1068 if ( joystick->hwdata->balls ) { | |
|
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1069 SDL_free(joystick->hwdata->balls); |
| 0 | 1070 } |
|
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1071 SDL_free(joystick->hwdata); |
| 0 | 1072 joystick->hwdata = NULL; |
| 1073 } | |
| 1074 } | |
| 1075 | |
| 1076 /* Function to perform any system-specific joystick related cleanup */ | |
| 1077 void SDL_SYS_JoystickQuit(void) | |
| 1078 { | |
| 1079 int i; | |
| 1080 | |
|
892
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1081 for ( i=0; SDL_joylist[i].fname; ++i ) { |
|
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1082 SDL_free(SDL_joylist[i].fname); |
| 0 | 1083 } |
|
892
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1084 SDL_joylist[0].fname = NULL; |
| 0 | 1085 } |
| 1086 |