Mercurial > sdl-ios-xcode
annotate src/joystick/linux/SDL_sysjoystick.c @ 1379:c0a74f199ecf
Use only safe string functions
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sun, 19 Feb 2006 23:46:34 +0000 |
| parents | 19418e4422cb |
| children | d910939febfa |
| 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 | |
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182 |
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183 #ifndef NO_LOGICAL_JOYSTICKS |
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184 |
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185 static int CountLogicalJoysticks(int max) |
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186 { |
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187 register int i, j, k, ret, prev; |
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188 const char* name; |
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189 |
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190 ret = 0; |
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191 |
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192 for(i = 0; i < max; i++) { |
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193 name = SDL_SYS_JoystickName(i); |
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194 |
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195 if (name) { |
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196 for(j = 0; j < SDL_arraysize(joystick_logicalmap); j++) { |
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197 if (!SDL_strcmp(name, joystick_logicalmap[j].name)) { |
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198 |
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199 prev = i; |
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200 SDL_joylist[prev].map = joystick_logicalmap+j; |
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201 |
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202 for(k = 1; k < joystick_logicalmap[j].njoys; k++) { |
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203 SDL_joylist[prev].next = max + ret; |
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204 |
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205 if (prev != i) |
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206 SDL_joylist[max+ret].prev = prev; |
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207 |
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208 prev = max + ret; |
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209 SDL_joylist[prev].logicalno = k; |
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210 SDL_joylist[prev].map = joystick_logicalmap+j; |
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211 ret++; |
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212 } |
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213 |
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214 break; |
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215 } |
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216 } |
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217 } |
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218 } |
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219 |
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220 return ret; |
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221 } |
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222 |
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223 static void LogicalSuffix(int logicalno, char* namebuf, int len) |
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224 { |
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225 register int slen; |
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226 const static char suffixs[] = |
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227 "01020304050607080910111213141516171819" |
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228 "20212223242526272829303132"; |
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229 const char* suffix; |
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230 |
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231 slen = SDL_strlen(namebuf); |
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232 |
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233 suffix = NULL; |
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234 |
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235 if (logicalno*2<sizeof(suffixs)) |
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236 suffix = suffixs + (logicalno*2); |
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237 |
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238 if (slen + 4 < len && suffix) { |
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239 namebuf[slen++] = ' '; |
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240 namebuf[slen++] = '#'; |
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241 namebuf[slen++] = suffix[0]; |
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242 namebuf[slen++] = suffix[1]; |
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243 namebuf[slen++] = 0; |
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244 } |
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245 } |
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246 |
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247 #endif /* USE_LOGICAL_JOYSTICKS */ |
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248 |
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249 #if SDL_INPUT_LINUXEV |
| 0 | 250 #define test_bit(nr, addr) \ |
| 251 (((1UL << ((nr) & 31)) & (((const unsigned int *) addr)[(nr) >> 5])) != 0) | |
| 252 | |
| 253 static int EV_IsJoystick(int fd) | |
| 254 { | |
| 255 unsigned long evbit[40]; | |
| 256 unsigned long keybit[40]; | |
| 257 unsigned long absbit[40]; | |
| 258 | |
| 259 if ( (ioctl(fd, EVIOCGBIT(0, sizeof(evbit)), evbit) < 0) || | |
| 260 (ioctl(fd, EVIOCGBIT(EV_KEY, sizeof(keybit)), keybit) < 0) || | |
| 261 (ioctl(fd, EVIOCGBIT(EV_ABS, sizeof(absbit)), absbit) < 0) ) { | |
| 262 return(0); | |
| 263 } | |
| 264 if (!(test_bit(EV_KEY, evbit) && test_bit(EV_ABS, evbit) && | |
| 265 test_bit(ABS_X, absbit) && test_bit(ABS_Y, absbit) && | |
| 266 (test_bit(BTN_TRIGGER, keybit) || test_bit(BTN_A, keybit) || test_bit(BTN_1, keybit)))) return 0; | |
| 267 return(1); | |
| 268 } | |
| 269 | |
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270 #endif /* SDL_INPUT_LINUXEV */ |
| 0 | 271 |
| 272 /* Function to scan the system for joysticks */ | |
| 273 int SDL_SYS_JoystickInit(void) | |
| 274 { | |
| 275 /* The base path of the joystick devices */ | |
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276 const char *joydev_pattern[] = { |
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277 #if SDL_INPUT_LINUXEV |
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278 "/dev/input/event%d", |
|
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279 #endif |
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280 "/dev/input/js%d", |
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281 "/dev/js%d" |
| 0 | 282 }; |
| 283 int numjoysticks; | |
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284 int i, j; |
| 0 | 285 int fd; |
| 286 char path[PATH_MAX]; | |
| 287 dev_t dev_nums[MAX_JOYSTICKS]; /* major/minor device numbers */ | |
| 288 struct stat sb; | |
| 289 int n, duplicate; | |
| 290 | |
| 291 numjoysticks = 0; | |
| 292 | |
| 293 /* First see if the user specified a joystick to use */ | |
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294 if ( SDL_getenv("SDL_JOYSTICK_DEVICE") != NULL ) { |
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295 SDL_strlcpy(path, SDL_getenv("SDL_JOYSTICK_DEVICE"), sizeof(path)); |
| 0 | 296 if ( stat(path, &sb) == 0 ) { |
| 297 fd = open(path, O_RDONLY, 0); | |
| 298 if ( fd >= 0 ) { | |
| 299 /* Assume the user knows what they're doing. */ | |
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300 SDL_joylist[numjoysticks].fname = SDL_strdup(path); |
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301 if ( SDL_joylist[numjoysticks].fname ) { |
| 0 | 302 dev_nums[numjoysticks] = sb.st_rdev; |
| 303 ++numjoysticks; | |
| 304 } | |
| 305 close(fd); | |
| 306 } | |
| 307 } | |
| 308 } | |
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309 |
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310 for ( i=0; i<SDL_arraysize(joydev_pattern); ++i ) { |
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311 for ( j=0; j < MAX_JOYSTICKS; ++j ) { |
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312 SDL_snprintf(path, SDL_arraysize(path), joydev_pattern[i], j); |
| 0 | 313 |
| 314 /* rcg06302000 replaced access(F_OK) call with stat(). | |
| 315 * stat() will fail if the file doesn't exist, so it's | |
| 316 * equivalent behaviour. | |
| 317 */ | |
| 318 if ( stat(path, &sb) == 0 ) { | |
| 319 /* Check to make sure it's not already in list. | |
| 320 * This happens when we see a stick via symlink. | |
| 321 */ | |
| 322 duplicate = 0; | |
| 323 for (n=0; (n<numjoysticks) && !duplicate; ++n) { | |
| 324 if ( sb.st_rdev == dev_nums[n] ) { | |
| 325 duplicate = 1; | |
| 326 } | |
| 327 } | |
| 328 if (duplicate) { | |
| 329 continue; | |
| 330 } | |
| 331 | |
| 332 fd = open(path, O_RDONLY, 0); | |
| 333 if ( fd < 0 ) { | |
| 334 continue; | |
| 335 } | |
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336 #if SDL_INPUT_LINUXEV |
| 0 | 337 #ifdef DEBUG_INPUT_EVENTS |
| 338 printf("Checking %s\n", path); | |
| 339 #endif | |
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340 if ( (i == 0) && ! EV_IsJoystick(fd) ) { |
| 0 | 341 close(fd); |
| 342 continue; | |
| 343 } | |
| 344 #endif | |
| 345 close(fd); | |
| 346 | |
| 347 /* We're fine, add this joystick */ | |
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348 SDL_joylist[numjoysticks].fname = SDL_strdup(path); |
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349 if ( SDL_joylist[numjoysticks].fname ) { |
| 0 | 350 dev_nums[numjoysticks] = sb.st_rdev; |
| 351 ++numjoysticks; | |
| 352 } | |
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353 } else |
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354 break; |
| 0 | 355 } |
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356 |
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357 #if SDL_INPUT_LINUXEV |
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358 /* This is a special case... |
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359 If the event devices are valid then the joystick devices |
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360 will be duplicates but without extra information about their |
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361 hats or balls. Unfortunately, the event devices can't |
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362 currently be calibrated, so it's a win-lose situation. |
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363 So : /dev/input/eventX = /dev/input/jsY = /dev/jsY |
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364 */ |
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365 if ( (i == 0) && (numjoysticks > 0) ) |
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366 break; |
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367 #endif |
| 0 | 368 } |
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369 #ifndef NO_LOGICAL_JOYSTICKS |
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370 numjoysticks += CountLogicalJoysticks(numjoysticks); |
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371 #endif |
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372 |
| 0 | 373 return(numjoysticks); |
| 374 } | |
| 375 | |
| 376 /* Function to get the device-dependent name of a joystick */ | |
| 377 const char *SDL_SYS_JoystickName(int index) | |
| 378 { | |
| 379 int fd; | |
| 380 static char namebuf[128]; | |
| 381 char *name; | |
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382 SDL_logical_joydecl(int oindex = index); |
| 0 | 383 |
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384 #ifndef NO_LOGICAL_JOYSTICKS |
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385 SDL_joylist_head(index, index); |
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386 #endif |
| 0 | 387 name = NULL; |
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388 fd = open(SDL_joylist[index].fname, O_RDONLY, 0); |
| 0 | 389 if ( fd >= 0 ) { |
| 390 if ( | |
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391 #if SDL_INPUT_LINUXEV |
| 0 | 392 (ioctl(fd, EVIOCGNAME(sizeof(namebuf)), namebuf) <= 0) && |
| 393 #endif | |
| 394 (ioctl(fd, JSIOCGNAME(sizeof(namebuf)), namebuf) <= 0) ) { | |
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395 name = SDL_joylist[index].fname; |
| 0 | 396 } else { |
| 397 name = namebuf; | |
| 398 } | |
| 399 close(fd); | |
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400 |
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401 #ifndef NO_LOGICAL_JOYSTICKS |
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402 if (SDL_joylist[oindex].prev || SDL_joylist[oindex].next) |
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403 LogicalSuffix(SDL_joylist[oindex].logicalno, namebuf, 128); |
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404 #endif |
| 0 | 405 } |
| 406 return name; | |
| 407 } | |
| 408 | |
| 409 static int allocate_hatdata(SDL_Joystick *joystick) | |
| 410 { | |
| 411 int i; | |
| 412 | |
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413 joystick->hwdata->hats = (struct hwdata_hat *)SDL_malloc( |
| 0 | 414 joystick->nhats * sizeof(struct hwdata_hat)); |
| 415 if ( joystick->hwdata->hats == NULL ) { | |
| 416 return(-1); | |
| 417 } | |
| 418 for ( i=0; i<joystick->nhats; ++i ) { | |
| 419 joystick->hwdata->hats[i].axis[0] = 1; | |
| 420 joystick->hwdata->hats[i].axis[1] = 1; | |
| 421 } | |
| 422 return(0); | |
| 423 } | |
| 424 | |
| 425 static int allocate_balldata(SDL_Joystick *joystick) | |
| 426 { | |
| 427 int i; | |
| 428 | |
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429 joystick->hwdata->balls = (struct hwdata_ball *)SDL_malloc( |
| 0 | 430 joystick->nballs * sizeof(struct hwdata_ball)); |
| 431 if ( joystick->hwdata->balls == NULL ) { | |
| 432 return(-1); | |
| 433 } | |
| 434 for ( i=0; i<joystick->nballs; ++i ) { | |
| 435 joystick->hwdata->balls[i].axis[0] = 0; | |
| 436 joystick->hwdata->balls[i].axis[1] = 0; | |
| 437 } | |
| 438 return(0); | |
| 439 } | |
| 440 | |
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441 static SDL_bool JS_ConfigJoystick(SDL_Joystick *joystick, int fd) |
| 0 | 442 { |
| 443 SDL_bool handled; | |
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444 unsigned char n; |
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445 int old_axes, tmp_naxes, tmp_nhats, tmp_nballs; |
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446 const char *name; |
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447 char *env, env_name[128]; |
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448 int i; |
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449 |
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450 handled = SDL_FALSE; |
| 0 | 451 |
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452 /* Default joystick device settings */ |
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453 if ( ioctl(fd, JSIOCGAXES, &n) < 0 ) { |
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454 joystick->naxes = 2; |
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455 } else { |
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456 joystick->naxes = n; |
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457 } |
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458 if ( ioctl(fd, JSIOCGBUTTONS, &n) < 0 ) { |
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459 joystick->nbuttons = 2; |
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460 } else { |
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461 joystick->nbuttons = n; |
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462 } |
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463 |
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464 name = SDL_SYS_JoystickName(joystick->index); |
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465 old_axes = joystick->naxes; |
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466 |
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467 /* Generic analog joystick support */ |
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468 if ( SDL_strstr(name, "Analog") == name && SDL_strstr(name, "-hat") ) { |
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469 if ( SDL_sscanf(name,"Analog %d-axis %*d-button %d-hat", |
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470 &tmp_naxes, &tmp_nhats) == 2 ) { |
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471 |
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472 joystick->naxes = tmp_naxes; |
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473 joystick->nhats = tmp_nhats; |
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474 |
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475 handled = SDL_TRUE; |
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476 } |
| 0 | 477 } |
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478 |
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479 /* Special joystick support */ |
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480 for ( i=0; i < SDL_arraysize(special_joysticks); ++i ) { |
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481 if ( SDL_strcmp(name, special_joysticks[i].name) == 0 ) { |
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482 |
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483 joystick->naxes = special_joysticks[i].naxes; |
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484 joystick->nhats = special_joysticks[i].nhats; |
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485 joystick->nballs = special_joysticks[i].nballs; |
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486 |
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487 handled = SDL_TRUE; |
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488 break; |
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489 } |
| 0 | 490 } |
|
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491 |
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492 /* User environment joystick support */ |
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493 if ( (env = SDL_getenv("SDL_LINUX_JOYSTICK")) ) { |
|
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494 *env_name = '\0'; |
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495 if ( *env == '\'' && SDL_sscanf(env, "'%[^']s'", env_name) == 1 ) |
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496 env += SDL_strlen(env_name)+2; |
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497 else if ( SDL_sscanf(env, "%s", env_name) == 1 ) |
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498 env += SDL_strlen(env_name); |
|
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499 |
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500 if ( SDL_strcmp(name, env_name) == 0 ) { |
| 0 | 501 |
|
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502 if ( SDL_sscanf(env, "%d %d %d", &tmp_naxes, &tmp_nhats, |
|
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503 &tmp_nballs) == 3 ) { |
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504 |
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505 joystick->naxes = tmp_naxes; |
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506 joystick->nhats = tmp_nhats; |
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507 joystick->nballs = tmp_nballs; |
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508 |
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509 handled = SDL_TRUE; |
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510 } |
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511 } |
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512 } |
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513 |
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514 /* Remap hats and balls */ |
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515 if (handled) { |
| 0 | 516 if ( joystick->nhats > 0 ) { |
|
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517 if ( allocate_hatdata(joystick) < 0 ) { |
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518 joystick->nhats = 0; |
| 0 | 519 } |
| 520 } | |
| 521 if ( joystick->nballs > 0 ) { | |
| 522 if ( allocate_balldata(joystick) < 0 ) { | |
| 523 joystick->nballs = 0; | |
| 524 } | |
| 525 } | |
| 526 } | |
|
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527 |
| 0 | 528 return(handled); |
| 529 } | |
| 530 | |
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531 #if SDL_INPUT_LINUXEV |
| 0 | 532 |
| 533 static SDL_bool EV_ConfigJoystick(SDL_Joystick *joystick, int fd) | |
| 534 { | |
| 871 | 535 int i, t; |
| 0 | 536 unsigned long keybit[40]; |
| 537 unsigned long absbit[40]; | |
| 538 unsigned long relbit[40]; | |
| 539 | |
| 540 /* See if this device uses the new unified event API */ | |
| 541 if ( (ioctl(fd, EVIOCGBIT(EV_KEY, sizeof(keybit)), keybit) >= 0) && | |
| 542 (ioctl(fd, EVIOCGBIT(EV_ABS, sizeof(absbit)), absbit) >= 0) && | |
| 543 (ioctl(fd, EVIOCGBIT(EV_REL, sizeof(relbit)), relbit) >= 0) ) { | |
| 544 joystick->hwdata->is_hid = SDL_TRUE; | |
| 545 | |
| 546 /* Get the number of buttons, axes, and other thingamajigs */ | |
| 547 for ( i=BTN_JOYSTICK; i < KEY_MAX; ++i ) { | |
| 548 if ( test_bit(i, keybit) ) { | |
| 549 #ifdef DEBUG_INPUT_EVENTS | |
| 550 printf("Joystick has button: 0x%x\n", i); | |
| 551 #endif | |
| 552 joystick->hwdata->key_map[i-BTN_MISC] = | |
| 553 joystick->nbuttons; | |
| 554 ++joystick->nbuttons; | |
| 555 } | |
| 556 } | |
| 557 for ( i=BTN_MISC; i < BTN_JOYSTICK; ++i ) { | |
| 558 if ( test_bit(i, keybit) ) { | |
| 559 #ifdef DEBUG_INPUT_EVENTS | |
| 560 printf("Joystick has button: 0x%x\n", i); | |
| 561 #endif | |
| 562 joystick->hwdata->key_map[i-BTN_MISC] = | |
| 563 joystick->nbuttons; | |
| 564 ++joystick->nbuttons; | |
| 565 } | |
| 566 } | |
| 567 for ( i=0; i<ABS_MAX; ++i ) { | |
| 568 /* Skip hats */ | |
| 569 if ( i == ABS_HAT0X ) { | |
| 570 i = ABS_HAT3Y; | |
| 571 continue; | |
| 572 } | |
| 573 if ( test_bit(i, absbit) ) { | |
| 574 int values[5]; | |
| 575 | |
|
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576 if ( ioctl(fd, EVIOCGABS(i), values) < 0 ) |
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577 continue; |
| 0 | 578 #ifdef DEBUG_INPUT_EVENTS |
| 579 printf("Joystick has absolute axis: %x\n", i); | |
| 580 printf("Values = { %d, %d, %d, %d, %d }\n", | |
| 581 values[0], values[1], | |
| 582 values[2], values[3], values[4]); | |
| 583 #endif /* DEBUG_INPUT_EVENTS */ | |
| 584 joystick->hwdata->abs_map[i] = joystick->naxes; | |
| 585 if ( values[1] == values[2] ) { | |
| 586 joystick->hwdata->abs_correct[i].used = 0; | |
| 587 } else { | |
| 588 joystick->hwdata->abs_correct[i].used = 1; | |
|
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589 joystick->hwdata->abs_correct[i].coef[0] = |
|
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590 (values[2] + values[1]) / 2 - values[4]; |
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591 joystick->hwdata->abs_correct[i].coef[1] = |
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592 (values[2] + values[1]) / 2 + values[4]; |
| 871 | 593 t = ((values[2] - values[1]) / 2 - 2 * values[4]); |
| 594 if ( t != 0 ) { | |
| 595 joystick->hwdata->abs_correct[i].coef[2] = (1 << 29) / t; | |
|
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596 } else { |
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597 joystick->hwdata->abs_correct[i].coef[2] = 0; |
| 871 | 598 } |
| 0 | 599 } |
| 600 ++joystick->naxes; | |
| 601 } | |
| 602 } | |
| 603 for ( i=ABS_HAT0X; i <= ABS_HAT3Y; i += 2 ) { | |
| 604 if ( test_bit(i, absbit) || test_bit(i+1, absbit) ) { | |
| 605 #ifdef DEBUG_INPUT_EVENTS | |
| 606 printf("Joystick has hat %d\n",(i-ABS_HAT0X)/2); | |
| 607 #endif | |
| 608 ++joystick->nhats; | |
| 609 } | |
| 610 } | |
| 611 if ( test_bit(REL_X, relbit) || test_bit(REL_Y, relbit) ) { | |
| 612 ++joystick->nballs; | |
| 613 } | |
| 614 | |
| 615 /* Allocate data to keep track of these thingamajigs */ | |
| 616 if ( joystick->nhats > 0 ) { | |
| 617 if ( allocate_hatdata(joystick) < 0 ) { | |
| 618 joystick->nhats = 0; | |
| 619 } | |
| 620 } | |
| 621 if ( joystick->nballs > 0 ) { | |
| 622 if ( allocate_balldata(joystick) < 0 ) { | |
| 623 joystick->nballs = 0; | |
| 624 } | |
| 625 } | |
| 626 } | |
| 627 return(joystick->hwdata->is_hid); | |
| 628 } | |
| 629 | |
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630 #endif /* SDL_INPUT_LINUXEV */ |
| 0 | 631 |
|
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632 #ifndef NO_LOGICAL_JOYSTICKS |
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633 static void ConfigLogicalJoystick(SDL_Joystick *joystick) |
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634 { |
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635 struct joystick_logical_layout* layout; |
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636 |
|
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637 layout = SDL_joylist[joystick->index].map->layouts + |
|
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638 SDL_joylist[joystick->index].logicalno; |
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639 |
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640 joystick->nbuttons = layout->nbuttons; |
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641 joystick->nhats = layout->nhats; |
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642 joystick->naxes = layout->naxes; |
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643 joystick->nballs = layout->nballs; |
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644 } |
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645 #endif |
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646 |
|
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647 |
| 0 | 648 /* Function to open a joystick for use. |
| 649 The joystick to open is specified by the index field of the joystick. | |
| 650 This should fill the nbuttons and naxes fields of the joystick structure. | |
| 651 It returns 0, or -1 if there is an error. | |
| 652 */ | |
| 653 int SDL_SYS_JoystickOpen(SDL_Joystick *joystick) | |
| 654 { | |
| 655 int fd; | |
|
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656 SDL_logical_joydecl(int realindex); |
|
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657 SDL_logical_joydecl(SDL_Joystick *realjoy = NULL); |
| 0 | 658 |
| 659 /* Open the joystick and set the joystick file descriptor */ | |
|
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660 #ifndef NO_LOGICAL_JOYSTICKS |
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661 if (SDL_joylist[joystick->index].fname == NULL) { |
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662 SDL_joylist_head(realindex, joystick->index); |
|
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663 realjoy = SDL_JoystickOpen(realindex); |
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664 |
|
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665 if (realjoy == NULL) |
|
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666 return(-1); |
|
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667 |
|
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668 fd = realjoy->hwdata->fd; |
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669 |
|
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670 } else { |
|
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671 fd = open(SDL_joylist[joystick->index].fname, O_RDONLY, 0); |
|
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672 } |
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673 SDL_joylist[joystick->index].joy = joystick; |
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674 #else |
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675 fd = open(SDL_joylist[joystick->index].fname, O_RDONLY, 0); |
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676 #endif |
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677 |
| 0 | 678 if ( fd < 0 ) { |
| 679 SDL_SetError("Unable to open %s\n", | |
| 680 SDL_joylist[joystick->index]); | |
| 681 return(-1); | |
| 682 } | |
| 683 joystick->hwdata = (struct joystick_hwdata *) | |
|
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684 SDL_malloc(sizeof(*joystick->hwdata)); |
| 0 | 685 if ( joystick->hwdata == NULL ) { |
| 686 SDL_OutOfMemory(); | |
| 687 close(fd); | |
| 688 return(-1); | |
| 689 } | |
|
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690 SDL_memset(joystick->hwdata, 0, sizeof(*joystick->hwdata)); |
| 0 | 691 joystick->hwdata->fd = fd; |
| 692 | |
| 693 /* Set the joystick to non-blocking read mode */ | |
| 694 fcntl(fd, F_SETFL, O_NONBLOCK); | |
| 695 | |
| 696 /* Get the number of buttons and axes on the joystick */ | |
|
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697 #ifndef NO_LOGICAL_JOYSTICKS |
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698 if (realjoy) |
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|
699 ConfigLogicalJoystick(joystick); |
|
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700 else |
|
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|
701 #endif |
|
1361
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New configure-based build system. Still work in progress, but much improved
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|
702 #if SDL_INPUT_LINUXEV |
| 0 | 703 if ( ! EV_ConfigJoystick(joystick, fd) ) |
| 704 #endif | |
|
554
38b1a98aeb11
Linux joystick cleanups from Alan Swanson
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|
705 JS_ConfigJoystick(joystick, fd); |
|
38b1a98aeb11
Linux joystick cleanups from Alan Swanson
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parents:
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diff
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|
706 |
| 0 | 707 return(0); |
| 708 } | |
| 709 | |
|
892
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diff
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|
710 #ifndef NO_LOGICAL_JOYSTICKS |
|
dc29e5907694
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|
711 |
|
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Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
712 static SDL_Joystick* FindLogicalJoystick( |
|
953
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Backing out new changes, at Chris Nelson's request.
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parents:
914
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|
713 SDL_Joystick *joystick, struct joystick_logical_values* v) |
|
892
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diff
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|
714 { |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
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|
715 SDL_Joystick *logicaljoy; |
|
dc29e5907694
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changeset
|
716 register int i; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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parents:
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diff
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|
717 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
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diff
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|
718 i = joystick->index; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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parents:
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diff
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|
719 logicaljoy = NULL; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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parents:
872
diff
changeset
|
720 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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parents:
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diff
changeset
|
721 /* get the fake joystick that will receive the event |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
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|
722 */ |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
723 for(;;) { |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
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diff
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|
724 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
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|
725 if (SDL_joylist[i].logicalno == v->njoy) { |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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parents:
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diff
changeset
|
726 logicaljoy = SDL_joylist[i].joy; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
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|
727 break; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
728 } |
|
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 if (SDL_joylist[i].next == 0) |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
731 break; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
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|
732 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
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|
733 i = SDL_joylist[i].next; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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parents:
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diff
changeset
|
734 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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parents:
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diff
changeset
|
735 } |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
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|
736 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
737 return logicaljoy; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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diff
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|
738 } |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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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 static int LogicalJoystickButton( |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
741 SDL_Joystick *joystick, Uint8 button, Uint8 state){ |
|
953
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Backing out new changes, at Chris Nelson's request.
Sam Lantinga <slouken@libsdl.org>
parents:
914
diff
changeset
|
742 struct joystick_logical_values* buttons; |
|
892
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Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
743 SDL_Joystick *logicaljoy = NULL; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
744 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
745 /* if there's no map then this is just a regular joystick |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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diff
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|
746 */ |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
747 if (SDL_joylist[joystick->index].map == NULL) |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
748 return 0; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
749 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
750 /* 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:
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diff
changeset
|
751 */ |
|
953
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Backing out new changes, at Chris Nelson's request.
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
752 buttons = SDL_joylist[joystick->index].map->buttons+button; |
|
892
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Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
753 logicaljoy = FindLogicalJoystick(joystick, buttons); |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
754 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
755 if (logicaljoy == NULL) |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
756 return 1; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
757 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
758 SDL_PrivateJoystickButton(logicaljoy, buttons->nthing, state); |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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diff
changeset
|
759 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
760 return 1; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
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changeset
|
761 } |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
762 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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parents:
872
diff
changeset
|
763 static int LogicalJoystickAxis( |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
764 SDL_Joystick *joystick, Uint8 axis, Sint16 value) |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
765 { |
|
953
cb5e1d0cad31
Backing out new changes, at Chris Nelson's request.
Sam Lantinga <slouken@libsdl.org>
parents:
914
diff
changeset
|
766 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
|
767 SDL_Joystick *logicaljoy = NULL; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
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diff
changeset
|
768 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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parents:
872
diff
changeset
|
769 /* 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:
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diff
changeset
|
770 */ |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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parents:
872
diff
changeset
|
771 if (SDL_joylist[joystick->index].map == NULL) |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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parents:
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diff
changeset
|
772 return 0; |
|
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)
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parents:
872
diff
changeset
|
774 /* 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
|
775 */ |
|
953
cb5e1d0cad31
Backing out new changes, at Chris Nelson's request.
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parents:
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diff
changeset
|
776 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>
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changeset
|
777 logicaljoy = FindLogicalJoystick(joystick, axes); |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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diff
changeset
|
778 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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872
diff
changeset
|
779 if (logicaljoy == NULL) |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
780 return 1; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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parents:
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changeset
|
781 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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changeset
|
782 SDL_PrivateJoystickAxis(logicaljoy, axes->nthing, value); |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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parents:
872
diff
changeset
|
783 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
784 return 1; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
785 } |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
786 #endif /* USE_LOGICAL_JOYSTICKS */ |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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parents:
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diff
changeset
|
787 |
| 0 | 788 static __inline__ |
| 789 void HandleHat(SDL_Joystick *stick, Uint8 hat, int axis, int value) | |
| 790 { | |
| 791 struct hwdata_hat *the_hat; | |
| 792 const Uint8 position_map[3][3] = { | |
| 793 { SDL_HAT_LEFTUP, SDL_HAT_UP, SDL_HAT_RIGHTUP }, | |
| 794 { SDL_HAT_LEFT, SDL_HAT_CENTERED, SDL_HAT_RIGHT }, | |
| 795 { SDL_HAT_LEFTDOWN, SDL_HAT_DOWN, SDL_HAT_RIGHTDOWN } | |
| 796 }; | |
|
892
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
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diff
changeset
|
797 SDL_logical_joydecl(SDL_Joystick *logicaljoy = NULL); |
|
953
cb5e1d0cad31
Backing out new changes, at Chris Nelson's request.
Sam Lantinga <slouken@libsdl.org>
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diff
changeset
|
798 SDL_logical_joydecl(struct joystick_logical_values* hats = NULL); |
| 0 | 799 |
| 800 the_hat = &stick->hwdata->hats[hat]; | |
| 801 if ( value < 0 ) { | |
| 802 value = 0; | |
| 803 } else | |
| 804 if ( value == 0 ) { | |
| 805 value = 1; | |
| 806 } else | |
| 807 if ( value > 0 ) { | |
| 808 value = 2; | |
| 809 } | |
| 810 if ( value != the_hat->axis[axis] ) { | |
| 811 the_hat->axis[axis] = value; | |
|
892
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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parents:
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diff
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|
812 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
813 #ifndef NO_LOGICAL_JOYSTICKS |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
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diff
changeset
|
814 /* if there's no map then this is just a regular joystick |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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parents:
872
diff
changeset
|
815 */ |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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872
diff
changeset
|
816 if (SDL_joylist[stick->index].map != NULL) { |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
817 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
818 /* 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
|
819 */ |
|
953
cb5e1d0cad31
Backing out new changes, at Chris Nelson's request.
Sam Lantinga <slouken@libsdl.org>
parents:
914
diff
changeset
|
820 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
|
821 logicaljoy = FindLogicalJoystick(stick, hats); |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
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872
diff
changeset
|
822 } |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
823 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
824 if (logicaljoy) { |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
825 stick = logicaljoy; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
826 hat = hats->nthing; |
|
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
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|
828 #endif /* USE_LOGICAL_JOYSTICKS */ |
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829 |
| 0 | 830 SDL_PrivateJoystickHat(stick, hat, |
| 831 position_map[the_hat->axis[1]][the_hat->axis[0]]); | |
| 832 } | |
| 833 } | |
| 834 | |
| 835 static __inline__ | |
| 836 void HandleBall(SDL_Joystick *stick, Uint8 ball, int axis, int value) | |
| 837 { | |
| 838 stick->hwdata->balls[ball].axis[axis] += value; | |
| 839 } | |
| 840 | |
| 841 /* Function to update the state of a joystick - called as a device poll. | |
| 842 * This function shouldn't update the joystick structure directly, | |
| 843 * but instead should call SDL_PrivateJoystick*() to deliver events | |
| 844 * and update joystick device state. | |
| 845 */ | |
| 846 static __inline__ void JS_HandleEvents(SDL_Joystick *joystick) | |
| 847 { | |
| 848 struct js_event events[32]; | |
| 849 int i, len; | |
| 850 Uint8 other_axis; | |
| 851 | |
|
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852 #ifndef NO_LOGICAL_JOYSTICKS |
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853 if (SDL_joylist[joystick->index].fname == NULL) { |
|
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854 SDL_joylist_head(i, joystick->index); |
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855 return JS_HandleEvents(SDL_joylist[i].joy); |
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856 } |
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857 #endif |
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858 |
| 0 | 859 while ((len=read(joystick->hwdata->fd, events, (sizeof events))) > 0) { |
| 860 len /= sizeof(events[0]); | |
| 861 for ( i=0; i<len; ++i ) { | |
| 862 switch (events[i].type & ~JS_EVENT_INIT) { | |
| 863 case JS_EVENT_AXIS: | |
| 864 if ( events[i].number < joystick->naxes ) { | |
|
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865 #ifndef NO_LOGICAL_JOYSTICKS |
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866 if (!LogicalJoystickAxis(joystick, |
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867 events[i].number, events[i].value)) |
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868 #endif |
| 0 | 869 SDL_PrivateJoystickAxis(joystick, |
| 870 events[i].number, events[i].value); | |
| 871 break; | |
| 872 } | |
| 873 events[i].number -= joystick->naxes; | |
|
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874 other_axis = (events[i].number / 2); |
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875 if ( other_axis < joystick->nhats ) { |
|
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876 HandleHat(joystick, other_axis, |
|
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877 events[i].number%2, |
|
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878 events[i].value); |
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879 break; |
| 0 | 880 } |
| 881 events[i].number -= joystick->nhats*2; | |
| 882 other_axis = (events[i].number / 2); | |
| 883 if ( other_axis < joystick->nballs ) { | |
| 884 HandleBall(joystick, other_axis, | |
| 885 events[i].number%2, | |
| 886 events[i].value); | |
| 887 break; | |
| 888 } | |
| 889 break; | |
| 890 case JS_EVENT_BUTTON: | |
|
892
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891 #ifndef NO_LOGICAL_JOYSTICKS |
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892 if (!LogicalJoystickButton(joystick, |
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893 events[i].number, events[i].value)) |
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894 #endif |
| 0 | 895 SDL_PrivateJoystickButton(joystick, |
| 896 events[i].number, events[i].value); | |
| 897 break; | |
| 898 default: | |
| 899 /* ?? */ | |
| 900 break; | |
| 901 } | |
| 902 } | |
| 903 } | |
| 904 } | |
|
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905 #if SDL_INPUT_LINUXEV |
| 0 | 906 static __inline__ int EV_AxisCorrect(SDL_Joystick *joystick, int which, int value) |
| 907 { | |
| 908 struct axis_correct *correct; | |
| 909 | |
| 910 correct = &joystick->hwdata->abs_correct[which]; | |
| 911 if ( correct->used ) { | |
| 912 if ( value > correct->coef[0] ) { | |
| 913 if ( value < correct->coef[1] ) { | |
| 914 return 0; | |
| 915 } | |
| 916 value -= correct->coef[1]; | |
| 917 } else { | |
| 918 value -= correct->coef[0]; | |
| 919 } | |
| 920 value *= correct->coef[2]; | |
| 921 value >>= 14; | |
| 922 } | |
|
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923 |
| 0 | 924 /* Clamp and return */ |
| 1275 | 925 if ( value < -32768 ) return -32768; |
|
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926 if ( value > 32767 ) return 32767; |
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927 |
| 0 | 928 return value; |
| 929 } | |
| 930 | |
| 931 static __inline__ void EV_HandleEvents(SDL_Joystick *joystick) | |
| 932 { | |
| 933 struct input_event events[32]; | |
| 934 int i, len; | |
| 935 int code; | |
| 936 | |
|
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937 #ifndef NO_LOGICAL_JOYSTICKS |
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938 if (SDL_joylist[joystick->index].fname == NULL) { |
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939 SDL_joylist_head(i, joystick->index); |
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940 return EV_HandleEvents(SDL_joylist[i].joy); |
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941 } |
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942 #endif |
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943 |
| 0 | 944 while ((len=read(joystick->hwdata->fd, events, (sizeof events))) > 0) { |
| 945 len /= sizeof(events[0]); | |
| 946 for ( i=0; i<len; ++i ) { | |
| 947 code = events[i].code; | |
| 948 switch (events[i].type) { | |
| 949 case EV_KEY: | |
| 950 if ( code >= BTN_MISC ) { | |
| 951 code -= BTN_MISC; | |
|
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952 #ifndef NO_LOGICAL_JOYSTICKS |
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953 if (!LogicalJoystickButton(joystick, |
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954 joystick->hwdata->key_map[code], |
|
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955 events[i].value)) |
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956 #endif |
| 0 | 957 SDL_PrivateJoystickButton(joystick, |
| 958 joystick->hwdata->key_map[code], | |
| 959 events[i].value); | |
| 960 } | |
| 961 break; | |
| 962 case EV_ABS: | |
| 963 switch (code) { | |
| 964 case ABS_HAT0X: | |
| 965 case ABS_HAT0Y: | |
| 966 case ABS_HAT1X: | |
| 967 case ABS_HAT1Y: | |
| 968 case ABS_HAT2X: | |
| 969 case ABS_HAT2Y: | |
| 970 case ABS_HAT3X: | |
| 971 case ABS_HAT3Y: | |
| 972 code -= ABS_HAT0X; | |
| 973 HandleHat(joystick, code/2, code%2, | |
| 974 events[i].value); | |
| 975 break; | |
| 976 default: | |
| 977 events[i].value = EV_AxisCorrect(joystick, code, events[i].value); | |
|
892
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978 #ifndef NO_LOGICAL_JOYSTICKS |
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979 if (!LogicalJoystickAxis(joystick, |
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980 joystick->hwdata->abs_map[code], |
|
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981 events[i].value)) |
|
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982 #endif |
| 0 | 983 SDL_PrivateJoystickAxis(joystick, |
| 984 joystick->hwdata->abs_map[code], | |
| 985 events[i].value); | |
| 986 break; | |
| 987 } | |
| 988 break; | |
| 989 case EV_REL: | |
| 990 switch (code) { | |
| 991 case REL_X: | |
| 992 case REL_Y: | |
| 993 code -= REL_X; | |
| 994 HandleBall(joystick, code/2, code%2, | |
| 995 events[i].value); | |
| 996 break; | |
| 997 default: | |
| 998 break; | |
| 999 } | |
| 1000 break; | |
| 1001 default: | |
| 1002 break; | |
| 1003 } | |
| 1004 } | |
| 1005 } | |
| 1006 } | |
|
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1007 #endif /* SDL_INPUT_LINUXEV */ |
| 0 | 1008 |
| 1009 void SDL_SYS_JoystickUpdate(SDL_Joystick *joystick) | |
| 1010 { | |
| 1011 int i; | |
| 1012 | |
|
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1013 #if SDL_INPUT_LINUXEV |
| 0 | 1014 if ( joystick->hwdata->is_hid ) |
| 1015 EV_HandleEvents(joystick); | |
| 1016 else | |
| 1017 #endif | |
| 1018 JS_HandleEvents(joystick); | |
| 1019 | |
| 1020 /* Deliver ball motion updates */ | |
| 1021 for ( i=0; i<joystick->nballs; ++i ) { | |
| 1022 int xrel, yrel; | |
| 1023 | |
| 1024 xrel = joystick->hwdata->balls[i].axis[0]; | |
| 1025 yrel = joystick->hwdata->balls[i].axis[1]; | |
| 1026 if ( xrel || yrel ) { | |
| 1027 joystick->hwdata->balls[i].axis[0] = 0; | |
| 1028 joystick->hwdata->balls[i].axis[1] = 0; | |
| 1029 SDL_PrivateJoystickBall(joystick, (Uint8)i, xrel, yrel); | |
| 1030 } | |
| 1031 } | |
| 1032 } | |
| 1033 | |
| 1034 /* Function to close a joystick after use */ | |
| 1035 void SDL_SYS_JoystickClose(SDL_Joystick *joystick) | |
| 1036 { | |
|
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1037 #ifndef NO_LOGICAL_JOYSTICKS |
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1038 register int i; |
|
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1039 if (SDL_joylist[joystick->index].fname == NULL) { |
|
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1040 SDL_joylist_head(i, joystick->index); |
|
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1041 SDL_JoystickClose(SDL_joylist[i].joy); |
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1042 } |
|
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1043 #endif |
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1044 |
| 0 | 1045 if ( joystick->hwdata ) { |
|
892
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1046 #ifndef NO_LOGICAL_JOYSTICKS |
|
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1047 if (SDL_joylist[joystick->index].fname != NULL) |
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1048 #endif |
| 0 | 1049 close(joystick->hwdata->fd); |
| 1050 if ( joystick->hwdata->hats ) { | |
|
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1051 SDL_free(joystick->hwdata->hats); |
| 0 | 1052 } |
| 1053 if ( joystick->hwdata->balls ) { | |
|
1336
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1054 SDL_free(joystick->hwdata->balls); |
| 0 | 1055 } |
|
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|
1056 SDL_free(joystick->hwdata); |
| 0 | 1057 joystick->hwdata = NULL; |
| 1058 } | |
| 1059 } | |
| 1060 | |
| 1061 /* Function to perform any system-specific joystick related cleanup */ | |
| 1062 void SDL_SYS_JoystickQuit(void) | |
| 1063 { | |
| 1064 int i; | |
| 1065 | |
|
892
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1066 for ( i=0; SDL_joylist[i].fname; ++i ) { |
|
1336
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1067 SDL_free(SDL_joylist[i].fname); |
| 0 | 1068 } |
|
892
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1069 SDL_joylist[0].fname = NULL; |
| 0 | 1070 } |
| 1071 |