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annotate src/joystick/linux/SDL_sysjoystick.c @ 1502:d403a39389da
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| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Mon, 13 Mar 2006 01:16:16 +0000 |
| parents | d910939febfa |
| children | 02e19471a694 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
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3 Copyright (C) 1997-2006 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
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6 modify it under the terms of the GNU Lesser General Public |
| 0 | 7 License as published by the Free Software Foundation; either |
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8 version 2.1 of the License, or (at your option) any later version. |
| 0 | 9 |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
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13 Lesser General Public License for more details. |
| 0 | 14 |
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15 You should have received a copy of the GNU Lesser General Public |
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16 License along with this library; if not, write to the Free Software |
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 0 | 18 |
| 19 Sam Lantinga | |
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20 slouken@libsdl.org |
| 0 | 21 */ |
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22 #include "SDL_config.h" |
| 0 | 23 |
| 24 /* This is the system specific header for the SDL joystick API */ | |
| 25 | |
| 26 #include <sys/stat.h> | |
| 27 #include <unistd.h> | |
| 28 #include <fcntl.h> | |
| 29 #include <sys/ioctl.h> | |
| 30 #include <limits.h> /* For the definition of PATH_MAX */ | |
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31 #ifdef __arm__ |
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32 #include <linux/limits.h> /* Arm cross-compiler needs this */ |
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33 #endif |
| 0 | 34 #include <linux/joystick.h> |
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35 #if SDL_INPUT_LINUXEV |
| 0 | 36 #include <linux/input.h> |
| 37 #endif | |
| 38 | |
| 39 #include "SDL_joystick.h" | |
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40 #include "../SDL_sysjoystick.h" |
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41 #include "../SDL_joystick_c.h" |
| 0 | 42 |
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43 /* Special joystick configurations */ |
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44 static struct { |
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45 const char *name; |
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46 int naxes; |
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47 int nhats; |
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48 int nballs; |
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49 } special_joysticks[] = { |
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50 { "MadCatz Panther XL", 3, 2, 1 }, /* We don't handle rudder (axis 8) */ |
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51 { "SideWinder Precision Pro", 4, 1, 0 }, |
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52 { "SideWinder 3D Pro", 4, 1, 0 }, |
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53 { "Microsoft SideWinder 3D Pro", 4, 1, 0 }, |
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54 { "Microsoft SideWinder Dual Strike USB version 1.0", 2, 1, 0 }, |
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55 { "WingMan Interceptor", 3, 3, 0 }, |
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56 { "WingMan Extreme Digital 3D", 4, 1, 0 }, |
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57 { "Microsoft SideWinder Precision 2 Joystick", 4, 1, 0 }, |
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58 { "Logitech Inc. WingMan Extreme Digital 3D", 4, 1, 0 }, |
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59 { "Saitek Saitek X45", 6, 1, 0 } |
| 0 | 60 }; |
| 61 | |
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62 #ifndef NO_LOGICAL_JOYSTICKS |
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63 |
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64 static struct joystick_logical_values { |
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65 int njoy; |
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66 int nthing; |
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67 } joystick_logical_values[] = { |
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68 |
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69 /* +0 */ |
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70 /* MP-8800 axes map - map to {logical joystick #, logical axis #} */ |
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71 {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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72 {3,0},{3,1},{3,2},{3,3},{0,4},{1,4},{2,4}, |
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73 |
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74 /* +19 */ |
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75 /* MP-8800 hat map - map to {logical joystick #, logical hat #} */ |
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76 {0,0},{1,0},{2,0},{3,0}, |
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77 |
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78 /* +23 */ |
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79 /* MP-8800 button map - map to {logical joystick #, logical button #} */ |
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80 {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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81 {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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82 {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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83 {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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84 }; |
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85 |
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86 static struct joystick_logical_layout { |
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87 int naxes; |
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88 int nhats; |
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89 int nballs; |
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90 int nbuttons; |
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91 } joystick_logical_layout[] = { |
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92 /* MP-8800 logical layout */ |
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93 {5, 1, 0, 12}, |
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94 {5, 1, 0, 12}, |
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95 {5, 1, 0, 12}, |
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96 {4, 1, 0, 12} |
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97 }; |
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98 |
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99 /* |
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100 Some USB HIDs show up as a single joystick even though they actually |
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101 control 2 or more joysticks. This array sets up a means of mapping |
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102 a single physical joystick to multiple logical joysticks. (djm) |
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103 |
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104 njoys |
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105 the number of logical joysticks |
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106 |
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107 layouts |
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108 an array of layout structures, one to describe each logical joystick |
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109 |
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110 axes, hats, balls, buttons |
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111 arrays that map a physical thingy to a logical thingy |
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112 */ |
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113 static struct joystick_logicalmap { |
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114 const char *name; |
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115 int njoys; |
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116 struct joystick_logical_layout *layouts; |
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117 struct joystick_logical_values *axes; |
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118 struct joystick_logical_values *hats; |
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119 struct joystick_logical_values *balls; |
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120 struct joystick_logical_values *buttons; |
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121 |
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122 } joystick_logicalmap[] = { |
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123 {"WiseGroup.,Ltd MP-8800 Quad USB Joypad", 4, joystick_logical_layout, |
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124 joystick_logical_values, joystick_logical_values+19, NULL, |
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125 joystick_logical_values+23} |
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126 }; |
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127 |
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128 /* find the head of a linked list, given a point in it |
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129 */ |
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130 #define SDL_joylist_head(i, start)\ |
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131 for(i = start; SDL_joylist[i].fname == NULL;) i = SDL_joylist[i].prev; |
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132 |
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133 #define SDL_logical_joydecl(d) d |
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134 |
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135 |
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136 #else |
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137 |
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138 #define SDL_logical_joydecl(d) |
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139 |
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140 #endif /* USE_LOGICAL_JOYSTICKS */ |
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141 |
| 0 | 142 /* The maximum number of joysticks we'll detect */ |
| 143 #define MAX_JOYSTICKS 32 | |
| 144 | |
| 145 /* A list of available joysticks */ | |
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146 static struct |
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147 { |
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148 char* fname; |
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149 #ifndef NO_LOGICAL_JOYSTICKS |
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150 SDL_Joystick* joy; |
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151 struct joystick_logicalmap* map; |
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152 int prev; |
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153 int next; |
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154 int logicalno; |
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155 #endif /* USE_LOGICAL_JOYSTICKS */ |
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156 } SDL_joylist[MAX_JOYSTICKS]; |
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157 |
| 0 | 158 |
| 159 /* The private structure used to keep track of a joystick */ | |
| 160 struct joystick_hwdata { | |
| 161 int fd; | |
| 162 /* The current linux joystick driver maps hats to two axes */ | |
| 163 struct hwdata_hat { | |
| 164 int axis[2]; | |
| 165 } *hats; | |
| 166 /* The current linux joystick driver maps balls to two axes */ | |
| 167 struct hwdata_ball { | |
| 168 int axis[2]; | |
| 169 } *balls; | |
| 170 | |
| 171 /* Support for the Linux 2.4 unified input interface */ | |
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172 #if SDL_INPUT_LINUXEV |
| 0 | 173 SDL_bool is_hid; |
| 174 Uint8 key_map[KEY_MAX-BTN_MISC]; | |
| 175 Uint8 abs_map[ABS_MAX]; | |
| 176 struct axis_correct { | |
| 177 int used; | |
| 178 int coef[3]; | |
| 179 } abs_correct[ABS_MAX]; | |
| 180 #endif | |
| 181 }; | |
| 182 | |
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183 |
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184 #ifndef NO_LOGICAL_JOYSTICKS |
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185 |
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186 static int CountLogicalJoysticks(int max) |
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187 { |
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188 register int i, j, k, ret, prev; |
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189 const char* name; |
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190 |
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191 ret = 0; |
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192 |
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193 for(i = 0; i < max; i++) { |
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194 name = SDL_SYS_JoystickName(i); |
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195 |
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196 if (name) { |
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197 for(j = 0; j < SDL_arraysize(joystick_logicalmap); j++) { |
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198 if (!SDL_strcmp(name, joystick_logicalmap[j].name)) { |
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199 |
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200 prev = i; |
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201 SDL_joylist[prev].map = joystick_logicalmap+j; |
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202 |
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203 for(k = 1; k < joystick_logicalmap[j].njoys; k++) { |
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204 SDL_joylist[prev].next = max + ret; |
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205 |
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206 if (prev != i) |
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207 SDL_joylist[max+ret].prev = prev; |
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208 |
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209 prev = max + ret; |
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210 SDL_joylist[prev].logicalno = k; |
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211 SDL_joylist[prev].map = joystick_logicalmap+j; |
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212 ret++; |
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213 } |
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214 |
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215 break; |
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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 |
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221 return ret; |
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222 } |
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223 |
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224 static void LogicalSuffix(int logicalno, char* namebuf, int len) |
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225 { |
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226 register int slen; |
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227 const static char suffixs[] = |
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228 "01020304050607080910111213141516171819" |
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229 "20212223242526272829303132"; |
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230 const char* suffix; |
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231 |
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232 slen = SDL_strlen(namebuf); |
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233 |
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234 suffix = NULL; |
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235 |
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236 if (logicalno*2<sizeof(suffixs)) |
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237 suffix = suffixs + (logicalno*2); |
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238 |
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239 if (slen + 4 < len && suffix) { |
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240 namebuf[slen++] = ' '; |
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241 namebuf[slen++] = '#'; |
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242 namebuf[slen++] = suffix[0]; |
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243 namebuf[slen++] = suffix[1]; |
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244 namebuf[slen++] = 0; |
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245 } |
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246 } |
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247 |
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248 #endif /* USE_LOGICAL_JOYSTICKS */ |
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249 |
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250 #if SDL_INPUT_LINUXEV |
| 0 | 251 #define test_bit(nr, addr) \ |
| 252 (((1UL << ((nr) & 31)) & (((const unsigned int *) addr)[(nr) >> 5])) != 0) | |
| 253 | |
| 254 static int EV_IsJoystick(int fd) | |
| 255 { | |
| 256 unsigned long evbit[40]; | |
| 257 unsigned long keybit[40]; | |
| 258 unsigned long absbit[40]; | |
| 259 | |
| 260 if ( (ioctl(fd, EVIOCGBIT(0, sizeof(evbit)), evbit) < 0) || | |
| 261 (ioctl(fd, EVIOCGBIT(EV_KEY, sizeof(keybit)), keybit) < 0) || | |
| 262 (ioctl(fd, EVIOCGBIT(EV_ABS, sizeof(absbit)), absbit) < 0) ) { | |
| 263 return(0); | |
| 264 } | |
| 265 if (!(test_bit(EV_KEY, evbit) && test_bit(EV_ABS, evbit) && | |
| 266 test_bit(ABS_X, absbit) && test_bit(ABS_Y, absbit) && | |
| 267 (test_bit(BTN_TRIGGER, keybit) || test_bit(BTN_A, keybit) || test_bit(BTN_1, keybit)))) return 0; | |
| 268 return(1); | |
| 269 } | |
| 270 | |
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271 #endif /* SDL_INPUT_LINUXEV */ |
| 0 | 272 |
| 273 /* Function to scan the system for joysticks */ | |
| 274 int SDL_SYS_JoystickInit(void) | |
| 275 { | |
| 276 /* The base path of the joystick devices */ | |
|
245
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277 const char *joydev_pattern[] = { |
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278 #if SDL_INPUT_LINUXEV |
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245
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279 "/dev/input/event%d", |
|
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280 #endif |
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281 "/dev/input/js%d", |
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282 "/dev/js%d" |
| 0 | 283 }; |
| 284 int numjoysticks; | |
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285 int i, j; |
| 0 | 286 int fd; |
| 287 char path[PATH_MAX]; | |
| 288 dev_t dev_nums[MAX_JOYSTICKS]; /* major/minor device numbers */ | |
| 289 struct stat sb; | |
| 290 int n, duplicate; | |
| 291 | |
| 292 numjoysticks = 0; | |
| 293 | |
| 294 /* First see if the user specified a joystick to use */ | |
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295 if ( SDL_getenv("SDL_JOYSTICK_DEVICE") != NULL ) { |
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296 SDL_strlcpy(path, SDL_getenv("SDL_JOYSTICK_DEVICE"), sizeof(path)); |
| 0 | 297 if ( stat(path, &sb) == 0 ) { |
| 298 fd = open(path, O_RDONLY, 0); | |
| 299 if ( fd >= 0 ) { | |
| 300 /* Assume the user knows what they're doing. */ | |
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301 SDL_joylist[numjoysticks].fname = SDL_strdup(path); |
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302 if ( SDL_joylist[numjoysticks].fname ) { |
| 0 | 303 dev_nums[numjoysticks] = sb.st_rdev; |
| 304 ++numjoysticks; | |
| 305 } | |
| 306 close(fd); | |
| 307 } | |
| 308 } | |
| 309 } | |
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310 |
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311 for ( i=0; i<SDL_arraysize(joydev_pattern); ++i ) { |
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312 for ( j=0; j < MAX_JOYSTICKS; ++j ) { |
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313 SDL_snprintf(path, SDL_arraysize(path), joydev_pattern[i], j); |
| 0 | 314 |
| 315 /* rcg06302000 replaced access(F_OK) call with stat(). | |
| 316 * stat() will fail if the file doesn't exist, so it's | |
| 317 * equivalent behaviour. | |
| 318 */ | |
| 319 if ( stat(path, &sb) == 0 ) { | |
| 320 /* Check to make sure it's not already in list. | |
| 321 * This happens when we see a stick via symlink. | |
| 322 */ | |
| 323 duplicate = 0; | |
| 324 for (n=0; (n<numjoysticks) && !duplicate; ++n) { | |
| 325 if ( sb.st_rdev == dev_nums[n] ) { | |
| 326 duplicate = 1; | |
| 327 } | |
| 328 } | |
| 329 if (duplicate) { | |
| 330 continue; | |
| 331 } | |
| 332 | |
| 333 fd = open(path, O_RDONLY, 0); | |
| 334 if ( fd < 0 ) { | |
| 335 continue; | |
| 336 } | |
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337 #if SDL_INPUT_LINUXEV |
| 0 | 338 #ifdef DEBUG_INPUT_EVENTS |
| 339 printf("Checking %s\n", path); | |
| 340 #endif | |
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341 if ( (i == 0) && ! EV_IsJoystick(fd) ) { |
| 0 | 342 close(fd); |
| 343 continue; | |
| 344 } | |
| 345 #endif | |
| 346 close(fd); | |
| 347 | |
| 348 /* We're fine, add this joystick */ | |
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349 SDL_joylist[numjoysticks].fname = SDL_strdup(path); |
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350 if ( SDL_joylist[numjoysticks].fname ) { |
| 0 | 351 dev_nums[numjoysticks] = sb.st_rdev; |
| 352 ++numjoysticks; | |
| 353 } | |
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354 } else |
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355 break; |
| 0 | 356 } |
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357 |
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358 #if SDL_INPUT_LINUXEV |
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359 /* This is a special case... |
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360 If the event devices are valid then the joystick devices |
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361 will be duplicates but without extra information about their |
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362 hats or balls. Unfortunately, the event devices can't |
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363 currently be calibrated, so it's a win-lose situation. |
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364 So : /dev/input/eventX = /dev/input/jsY = /dev/jsY |
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365 */ |
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366 if ( (i == 0) && (numjoysticks > 0) ) |
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367 break; |
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368 #endif |
| 0 | 369 } |
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370 #ifndef NO_LOGICAL_JOYSTICKS |
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371 numjoysticks += CountLogicalJoysticks(numjoysticks); |
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372 #endif |
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373 |
| 0 | 374 return(numjoysticks); |
| 375 } | |
| 376 | |
| 377 /* Function to get the device-dependent name of a joystick */ | |
| 378 const char *SDL_SYS_JoystickName(int index) | |
| 379 { | |
| 380 int fd; | |
| 381 static char namebuf[128]; | |
| 382 char *name; | |
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383 SDL_logical_joydecl(int oindex = index); |
| 0 | 384 |
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385 #ifndef NO_LOGICAL_JOYSTICKS |
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386 SDL_joylist_head(index, index); |
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387 #endif |
| 0 | 388 name = NULL; |
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389 fd = open(SDL_joylist[index].fname, O_RDONLY, 0); |
| 0 | 390 if ( fd >= 0 ) { |
| 391 if ( | |
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392 #if SDL_INPUT_LINUXEV |
| 0 | 393 (ioctl(fd, EVIOCGNAME(sizeof(namebuf)), namebuf) <= 0) && |
| 394 #endif | |
| 395 (ioctl(fd, JSIOCGNAME(sizeof(namebuf)), namebuf) <= 0) ) { | |
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396 name = SDL_joylist[index].fname; |
| 0 | 397 } else { |
| 398 name = namebuf; | |
| 399 } | |
| 400 close(fd); | |
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401 |
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402 #ifndef NO_LOGICAL_JOYSTICKS |
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403 if (SDL_joylist[oindex].prev || SDL_joylist[oindex].next) |
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404 LogicalSuffix(SDL_joylist[oindex].logicalno, namebuf, 128); |
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405 #endif |
| 0 | 406 } |
| 407 return name; | |
| 408 } | |
| 409 | |
| 410 static int allocate_hatdata(SDL_Joystick *joystick) | |
| 411 { | |
| 412 int i; | |
| 413 | |
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414 joystick->hwdata->hats = (struct hwdata_hat *)SDL_malloc( |
| 0 | 415 joystick->nhats * sizeof(struct hwdata_hat)); |
| 416 if ( joystick->hwdata->hats == NULL ) { | |
| 417 return(-1); | |
| 418 } | |
| 419 for ( i=0; i<joystick->nhats; ++i ) { | |
| 420 joystick->hwdata->hats[i].axis[0] = 1; | |
| 421 joystick->hwdata->hats[i].axis[1] = 1; | |
| 422 } | |
| 423 return(0); | |
| 424 } | |
| 425 | |
| 426 static int allocate_balldata(SDL_Joystick *joystick) | |
| 427 { | |
| 428 int i; | |
| 429 | |
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430 joystick->hwdata->balls = (struct hwdata_ball *)SDL_malloc( |
| 0 | 431 joystick->nballs * sizeof(struct hwdata_ball)); |
| 432 if ( joystick->hwdata->balls == NULL ) { | |
| 433 return(-1); | |
| 434 } | |
| 435 for ( i=0; i<joystick->nballs; ++i ) { | |
| 436 joystick->hwdata->balls[i].axis[0] = 0; | |
| 437 joystick->hwdata->balls[i].axis[1] = 0; | |
| 438 } | |
| 439 return(0); | |
| 440 } | |
| 441 | |
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442 static SDL_bool JS_ConfigJoystick(SDL_Joystick *joystick, int fd) |
| 0 | 443 { |
| 444 SDL_bool handled; | |
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445 unsigned char n; |
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446 int old_axes, tmp_naxes, tmp_nhats, tmp_nballs; |
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447 const char *name; |
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448 char *env, env_name[128]; |
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449 int i; |
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450 |
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451 handled = SDL_FALSE; |
| 0 | 452 |
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453 /* Default joystick device settings */ |
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454 if ( ioctl(fd, JSIOCGAXES, &n) < 0 ) { |
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455 joystick->naxes = 2; |
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456 } else { |
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457 joystick->naxes = n; |
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458 } |
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459 if ( ioctl(fd, JSIOCGBUTTONS, &n) < 0 ) { |
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460 joystick->nbuttons = 2; |
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461 } else { |
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462 joystick->nbuttons = n; |
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463 } |
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464 |
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465 name = SDL_SYS_JoystickName(joystick->index); |
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466 old_axes = joystick->naxes; |
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467 |
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468 /* Generic analog joystick support */ |
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469 if ( SDL_strstr(name, "Analog") == name && SDL_strstr(name, "-hat") ) { |
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470 if ( SDL_sscanf(name,"Analog %d-axis %*d-button %d-hat", |
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471 &tmp_naxes, &tmp_nhats) == 2 ) { |
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472 |
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473 joystick->naxes = tmp_naxes; |
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474 joystick->nhats = tmp_nhats; |
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475 |
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476 handled = SDL_TRUE; |
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477 } |
| 0 | 478 } |
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479 |
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480 /* Special joystick support */ |
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481 for ( i=0; i < SDL_arraysize(special_joysticks); ++i ) { |
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482 if ( SDL_strcmp(name, special_joysticks[i].name) == 0 ) { |
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483 |
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484 joystick->naxes = special_joysticks[i].naxes; |
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485 joystick->nhats = special_joysticks[i].nhats; |
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486 joystick->nballs = special_joysticks[i].nballs; |
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487 |
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488 handled = SDL_TRUE; |
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489 break; |
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490 } |
| 0 | 491 } |
|
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492 |
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493 /* User environment joystick support */ |
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494 if ( (env = SDL_getenv("SDL_LINUX_JOYSTICK")) ) { |
|
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495 *env_name = '\0'; |
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496 if ( *env == '\'' && SDL_sscanf(env, "'%[^']s'", env_name) == 1 ) |
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497 env += SDL_strlen(env_name)+2; |
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498 else if ( SDL_sscanf(env, "%s", env_name) == 1 ) |
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499 env += SDL_strlen(env_name); |
|
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500 |
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501 if ( SDL_strcmp(name, env_name) == 0 ) { |
| 0 | 502 |
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503 if ( SDL_sscanf(env, "%d %d %d", &tmp_naxes, &tmp_nhats, |
|
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504 &tmp_nballs) == 3 ) { |
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505 |
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506 joystick->naxes = tmp_naxes; |
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507 joystick->nhats = tmp_nhats; |
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508 joystick->nballs = tmp_nballs; |
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509 |
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510 handled = SDL_TRUE; |
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511 } |
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512 } |
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513 } |
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514 |
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515 /* Remap hats and balls */ |
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516 if (handled) { |
| 0 | 517 if ( joystick->nhats > 0 ) { |
|
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518 if ( allocate_hatdata(joystick) < 0 ) { |
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519 joystick->nhats = 0; |
| 0 | 520 } |
| 521 } | |
| 522 if ( joystick->nballs > 0 ) { | |
| 523 if ( allocate_balldata(joystick) < 0 ) { | |
| 524 joystick->nballs = 0; | |
| 525 } | |
| 526 } | |
| 527 } | |
|
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528 |
| 0 | 529 return(handled); |
| 530 } | |
| 531 | |
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532 #if SDL_INPUT_LINUXEV |
| 0 | 533 |
| 534 static SDL_bool EV_ConfigJoystick(SDL_Joystick *joystick, int fd) | |
| 535 { | |
| 871 | 536 int i, t; |
| 0 | 537 unsigned long keybit[40]; |
| 538 unsigned long absbit[40]; | |
| 539 unsigned long relbit[40]; | |
| 540 | |
| 541 /* See if this device uses the new unified event API */ | |
| 542 if ( (ioctl(fd, EVIOCGBIT(EV_KEY, sizeof(keybit)), keybit) >= 0) && | |
| 543 (ioctl(fd, EVIOCGBIT(EV_ABS, sizeof(absbit)), absbit) >= 0) && | |
| 544 (ioctl(fd, EVIOCGBIT(EV_REL, sizeof(relbit)), relbit) >= 0) ) { | |
| 545 joystick->hwdata->is_hid = SDL_TRUE; | |
| 546 | |
| 547 /* Get the number of buttons, axes, and other thingamajigs */ | |
| 548 for ( i=BTN_JOYSTICK; i < KEY_MAX; ++i ) { | |
| 549 if ( test_bit(i, keybit) ) { | |
| 550 #ifdef DEBUG_INPUT_EVENTS | |
| 551 printf("Joystick has button: 0x%x\n", i); | |
| 552 #endif | |
| 553 joystick->hwdata->key_map[i-BTN_MISC] = | |
| 554 joystick->nbuttons; | |
| 555 ++joystick->nbuttons; | |
| 556 } | |
| 557 } | |
| 558 for ( i=BTN_MISC; i < BTN_JOYSTICK; ++i ) { | |
| 559 if ( test_bit(i, keybit) ) { | |
| 560 #ifdef DEBUG_INPUT_EVENTS | |
| 561 printf("Joystick has button: 0x%x\n", i); | |
| 562 #endif | |
| 563 joystick->hwdata->key_map[i-BTN_MISC] = | |
| 564 joystick->nbuttons; | |
| 565 ++joystick->nbuttons; | |
| 566 } | |
| 567 } | |
| 568 for ( i=0; i<ABS_MAX; ++i ) { | |
| 569 /* Skip hats */ | |
| 570 if ( i == ABS_HAT0X ) { | |
| 571 i = ABS_HAT3Y; | |
| 572 continue; | |
| 573 } | |
| 574 if ( test_bit(i, absbit) ) { | |
| 575 int values[5]; | |
| 576 | |
|
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577 if ( ioctl(fd, EVIOCGABS(i), values) < 0 ) |
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578 continue; |
| 0 | 579 #ifdef DEBUG_INPUT_EVENTS |
| 580 printf("Joystick has absolute axis: %x\n", i); | |
| 581 printf("Values = { %d, %d, %d, %d, %d }\n", | |
| 582 values[0], values[1], | |
| 583 values[2], values[3], values[4]); | |
| 584 #endif /* DEBUG_INPUT_EVENTS */ | |
| 585 joystick->hwdata->abs_map[i] = joystick->naxes; | |
| 586 if ( values[1] == values[2] ) { | |
| 587 joystick->hwdata->abs_correct[i].used = 0; | |
| 588 } else { | |
| 589 joystick->hwdata->abs_correct[i].used = 1; | |
|
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590 joystick->hwdata->abs_correct[i].coef[0] = |
|
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591 (values[2] + values[1]) / 2 - values[4]; |
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592 joystick->hwdata->abs_correct[i].coef[1] = |
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593 (values[2] + values[1]) / 2 + values[4]; |
| 871 | 594 t = ((values[2] - values[1]) / 2 - 2 * values[4]); |
| 595 if ( t != 0 ) { | |
| 596 joystick->hwdata->abs_correct[i].coef[2] = (1 << 29) / t; | |
|
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597 } else { |
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598 joystick->hwdata->abs_correct[i].coef[2] = 0; |
| 871 | 599 } |
| 0 | 600 } |
| 601 ++joystick->naxes; | |
| 602 } | |
| 603 } | |
| 604 for ( i=ABS_HAT0X; i <= ABS_HAT3Y; i += 2 ) { | |
| 605 if ( test_bit(i, absbit) || test_bit(i+1, absbit) ) { | |
| 606 #ifdef DEBUG_INPUT_EVENTS | |
| 607 printf("Joystick has hat %d\n",(i-ABS_HAT0X)/2); | |
| 608 #endif | |
| 609 ++joystick->nhats; | |
| 610 } | |
| 611 } | |
| 612 if ( test_bit(REL_X, relbit) || test_bit(REL_Y, relbit) ) { | |
| 613 ++joystick->nballs; | |
| 614 } | |
| 615 | |
| 616 /* Allocate data to keep track of these thingamajigs */ | |
| 617 if ( joystick->nhats > 0 ) { | |
| 618 if ( allocate_hatdata(joystick) < 0 ) { | |
| 619 joystick->nhats = 0; | |
| 620 } | |
| 621 } | |
| 622 if ( joystick->nballs > 0 ) { | |
| 623 if ( allocate_balldata(joystick) < 0 ) { | |
| 624 joystick->nballs = 0; | |
| 625 } | |
| 626 } | |
| 627 } | |
| 628 return(joystick->hwdata->is_hid); | |
| 629 } | |
| 630 | |
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631 #endif /* SDL_INPUT_LINUXEV */ |
| 0 | 632 |
|
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633 #ifndef NO_LOGICAL_JOYSTICKS |
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634 static void ConfigLogicalJoystick(SDL_Joystick *joystick) |
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635 { |
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636 struct joystick_logical_layout* layout; |
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637 |
|
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638 layout = SDL_joylist[joystick->index].map->layouts + |
|
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639 SDL_joylist[joystick->index].logicalno; |
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640 |
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641 joystick->nbuttons = layout->nbuttons; |
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642 joystick->nhats = layout->nhats; |
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643 joystick->naxes = layout->naxes; |
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644 joystick->nballs = layout->nballs; |
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645 } |
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646 #endif |
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647 |
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648 |
| 0 | 649 /* Function to open a joystick for use. |
| 650 The joystick to open is specified by the index field of the joystick. | |
| 651 This should fill the nbuttons and naxes fields of the joystick structure. | |
| 652 It returns 0, or -1 if there is an error. | |
| 653 */ | |
| 654 int SDL_SYS_JoystickOpen(SDL_Joystick *joystick) | |
| 655 { | |
| 656 int fd; | |
|
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657 SDL_logical_joydecl(int realindex); |
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658 SDL_logical_joydecl(SDL_Joystick *realjoy = NULL); |
| 0 | 659 |
| 660 /* Open the joystick and set the joystick file descriptor */ | |
|
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661 #ifndef NO_LOGICAL_JOYSTICKS |
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662 if (SDL_joylist[joystick->index].fname == NULL) { |
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663 SDL_joylist_head(realindex, joystick->index); |
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664 realjoy = SDL_JoystickOpen(realindex); |
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665 |
|
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666 if (realjoy == NULL) |
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667 return(-1); |
|
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668 |
|
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669 fd = realjoy->hwdata->fd; |
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670 |
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671 } else { |
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672 fd = open(SDL_joylist[joystick->index].fname, O_RDONLY, 0); |
|
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673 } |
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674 SDL_joylist[joystick->index].joy = joystick; |
|
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675 #else |
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676 fd = open(SDL_joylist[joystick->index].fname, O_RDONLY, 0); |
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677 #endif |
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678 |
| 0 | 679 if ( fd < 0 ) { |
| 680 SDL_SetError("Unable to open %s\n", | |
| 681 SDL_joylist[joystick->index]); | |
| 682 return(-1); | |
| 683 } | |
| 684 joystick->hwdata = (struct joystick_hwdata *) | |
|
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685 SDL_malloc(sizeof(*joystick->hwdata)); |
| 0 | 686 if ( joystick->hwdata == NULL ) { |
| 687 SDL_OutOfMemory(); | |
| 688 close(fd); | |
| 689 return(-1); | |
| 690 } | |
|
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691 SDL_memset(joystick->hwdata, 0, sizeof(*joystick->hwdata)); |
| 0 | 692 joystick->hwdata->fd = fd; |
| 693 | |
| 694 /* Set the joystick to non-blocking read mode */ | |
| 695 fcntl(fd, F_SETFL, O_NONBLOCK); | |
| 696 | |
| 697 /* Get the number of buttons and axes on the joystick */ | |
|
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698 #ifndef NO_LOGICAL_JOYSTICKS |
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|
699 if (realjoy) |
|
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|
700 ConfigLogicalJoystick(joystick); |
|
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|
701 else |
|
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|
702 #endif |
|
1361
19418e4422cb
New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
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|
703 #if SDL_INPUT_LINUXEV |
| 0 | 704 if ( ! EV_ConfigJoystick(joystick, fd) ) |
| 705 #endif | |
|
554
38b1a98aeb11
Linux joystick cleanups from Alan Swanson
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|
706 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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|
707 |
| 0 | 708 return(0); |
| 709 } | |
| 710 | |
|
892
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|
711 #ifndef NO_LOGICAL_JOYSTICKS |
|
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diff
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|
712 |
|
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Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
713 static SDL_Joystick* FindLogicalJoystick( |
|
953
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Backing out new changes, at Chris Nelson's request.
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|
714 SDL_Joystick *joystick, struct joystick_logical_values* v) |
|
892
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parents:
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|
715 { |
|
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Sam Lantinga <slouken@libsdl.org>
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diff
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|
716 SDL_Joystick *logicaljoy; |
|
dc29e5907694
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changeset
|
717 register int i; |
|
dc29e5907694
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parents:
872
diff
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|
718 |
|
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 i = joystick->index; |
|
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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|
720 logicaljoy = NULL; |
|
dc29e5907694
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diff
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|
721 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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parents:
872
diff
changeset
|
722 /* get the fake joystick that will receive the event |
|
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Sam Lantinga <slouken@libsdl.org>
parents:
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diff
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|
723 */ |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
724 for(;;) { |
|
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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|
725 |
|
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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|
726 if (SDL_joylist[i].logicalno == v->njoy) { |
|
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 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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|
728 break; |
|
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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|
729 } |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
730 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
731 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
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|
732 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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|
733 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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parents:
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diff
changeset
|
734 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
|
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 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
738 return logicaljoy; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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parents:
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diff
changeset
|
739 } |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
740 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
741 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
|
742 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
|
743 struct joystick_logical_values* buttons; |
|
892
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Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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parents:
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diff
changeset
|
744 SDL_Joystick *logicaljoy = NULL; |
|
dc29e5907694
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Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
745 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
746 /* 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:
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diff
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|
747 */ |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
748 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
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|
749 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
|
750 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
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diff
changeset
|
751 /* 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
|
752 */ |
|
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
|
753 buttons = SDL_joylist[joystick->index].map->buttons+button; |
|
892
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Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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changeset
|
754 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
|
755 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
756 if (logicaljoy == NULL) |
|
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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|
757 return 1; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
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diff
changeset
|
758 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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diff
changeset
|
759 SDL_PrivateJoystickButton(logicaljoy, buttons->nthing, state); |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
760 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
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changeset
|
761 return 1; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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changeset
|
762 } |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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diff
changeset
|
763 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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parents:
872
diff
changeset
|
764 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
|
765 SDL_Joystick *joystick, Uint8 axis, Sint16 value) |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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diff
changeset
|
766 { |
|
953
cb5e1d0cad31
Backing out new changes, at Chris Nelson's request.
Sam Lantinga <slouken@libsdl.org>
parents:
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changeset
|
767 struct joystick_logical_values* axes; |
|
892
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Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
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changeset
|
768 SDL_Joystick *logicaljoy = NULL; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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diff
changeset
|
769 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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parents:
872
diff
changeset
|
770 /* 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:
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diff
changeset
|
771 */ |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
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diff
changeset
|
772 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
|
773 return 0; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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diff
changeset
|
774 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
775 /* get the logical joystick that will receive the event |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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parents:
872
diff
changeset
|
776 */ |
|
953
cb5e1d0cad31
Backing out new changes, at Chris Nelson's request.
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parents:
914
diff
changeset
|
777 axes = SDL_joylist[joystick->index].map->axes+axis; |
|
892
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Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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|
778 logicaljoy = FindLogicalJoystick(joystick, axes); |
|
dc29e5907694
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diff
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|
779 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
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diff
changeset
|
780 if (logicaljoy == NULL) |
|
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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|
781 return 1; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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changeset
|
782 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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diff
changeset
|
783 SDL_PrivateJoystickAxis(logicaljoy, axes->nthing, value); |
|
dc29e5907694
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|
784 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
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|
785 return 1; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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diff
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|
786 } |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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parents:
872
diff
changeset
|
787 #endif /* USE_LOGICAL_JOYSTICKS */ |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
788 |
| 0 | 789 static __inline__ |
| 790 void HandleHat(SDL_Joystick *stick, Uint8 hat, int axis, int value) | |
| 791 { | |
| 792 struct hwdata_hat *the_hat; | |
| 793 const Uint8 position_map[3][3] = { | |
| 794 { SDL_HAT_LEFTUP, SDL_HAT_UP, SDL_HAT_RIGHTUP }, | |
| 795 { SDL_HAT_LEFT, SDL_HAT_CENTERED, SDL_HAT_RIGHT }, | |
| 796 { SDL_HAT_LEFTDOWN, SDL_HAT_DOWN, SDL_HAT_RIGHTDOWN } | |
| 797 }; | |
|
892
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|
798 SDL_logical_joydecl(SDL_Joystick *logicaljoy = NULL); |
|
953
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Backing out new changes, at Chris Nelson's request.
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diff
changeset
|
799 SDL_logical_joydecl(struct joystick_logical_values* hats = NULL); |
| 0 | 800 |
| 801 the_hat = &stick->hwdata->hats[hat]; | |
| 802 if ( value < 0 ) { | |
| 803 value = 0; | |
| 804 } else | |
| 805 if ( value == 0 ) { | |
| 806 value = 1; | |
| 807 } else | |
| 808 if ( value > 0 ) { | |
| 809 value = 2; | |
| 810 } | |
| 811 if ( value != the_hat->axis[axis] ) { | |
| 812 the_hat->axis[axis] = value; | |
|
892
dc29e5907694
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parents:
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diff
changeset
|
813 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
814 #ifndef NO_LOGICAL_JOYSTICKS |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
815 /* 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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|
816 */ |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
817 if (SDL_joylist[stick->index].map != NULL) { |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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diff
changeset
|
818 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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parents:
872
diff
changeset
|
819 /* 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
|
820 */ |
|
953
cb5e1d0cad31
Backing out new changes, at Chris Nelson's request.
Sam Lantinga <slouken@libsdl.org>
parents:
914
diff
changeset
|
821 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
|
822 logicaljoy = FindLogicalJoystick(stick, hats); |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
823 } |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
824 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
825 if (logicaljoy) { |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
826 stick = logicaljoy; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
827 hat = hats->nthing; |
|
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Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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828 } |
|
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829 #endif /* USE_LOGICAL_JOYSTICKS */ |
|
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|
830 |
| 0 | 831 SDL_PrivateJoystickHat(stick, hat, |
| 832 position_map[the_hat->axis[1]][the_hat->axis[0]]); | |
| 833 } | |
| 834 } | |
| 835 | |
| 836 static __inline__ | |
| 837 void HandleBall(SDL_Joystick *stick, Uint8 ball, int axis, int value) | |
| 838 { | |
| 839 stick->hwdata->balls[ball].axis[axis] += value; | |
| 840 } | |
| 841 | |
| 842 /* Function to update the state of a joystick - called as a device poll. | |
| 843 * This function shouldn't update the joystick structure directly, | |
| 844 * but instead should call SDL_PrivateJoystick*() to deliver events | |
| 845 * and update joystick device state. | |
| 846 */ | |
| 847 static __inline__ void JS_HandleEvents(SDL_Joystick *joystick) | |
| 848 { | |
| 849 struct js_event events[32]; | |
| 850 int i, len; | |
| 851 Uint8 other_axis; | |
| 852 | |
|
892
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|
853 #ifndef NO_LOGICAL_JOYSTICKS |
|
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854 if (SDL_joylist[joystick->index].fname == NULL) { |
|
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855 SDL_joylist_head(i, joystick->index); |
|
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856 return JS_HandleEvents(SDL_joylist[i].joy); |
|
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857 } |
|
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858 #endif |
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859 |
| 0 | 860 while ((len=read(joystick->hwdata->fd, events, (sizeof events))) > 0) { |
| 861 len /= sizeof(events[0]); | |
| 862 for ( i=0; i<len; ++i ) { | |
| 863 switch (events[i].type & ~JS_EVENT_INIT) { | |
| 864 case JS_EVENT_AXIS: | |
| 865 if ( events[i].number < joystick->naxes ) { | |
|
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866 #ifndef NO_LOGICAL_JOYSTICKS |
|
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867 if (!LogicalJoystickAxis(joystick, |
|
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868 events[i].number, events[i].value)) |
|
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|
869 #endif |
| 0 | 870 SDL_PrivateJoystickAxis(joystick, |
| 871 events[i].number, events[i].value); | |
| 872 break; | |
| 873 } | |
| 874 events[i].number -= joystick->naxes; | |
|
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875 other_axis = (events[i].number / 2); |
|
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Removed obsolete Linux joystick code
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|
876 if ( other_axis < joystick->nhats ) { |
|
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Removed obsolete Linux joystick code
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877 HandleHat(joystick, other_axis, |
|
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Removed obsolete Linux joystick code
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878 events[i].number%2, |
|
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Removed obsolete Linux joystick code
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879 events[i].value); |
|
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|
880 break; |
| 0 | 881 } |
| 882 events[i].number -= joystick->nhats*2; | |
| 883 other_axis = (events[i].number / 2); | |
| 884 if ( other_axis < joystick->nballs ) { | |
| 885 HandleBall(joystick, other_axis, | |
| 886 events[i].number%2, | |
| 887 events[i].value); | |
| 888 break; | |
| 889 } | |
| 890 break; | |
| 891 case JS_EVENT_BUTTON: | |
|
892
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892 #ifndef NO_LOGICAL_JOYSTICKS |
|
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893 if (!LogicalJoystickButton(joystick, |
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894 events[i].number, events[i].value)) |
|
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895 #endif |
| 0 | 896 SDL_PrivateJoystickButton(joystick, |
| 897 events[i].number, events[i].value); | |
| 898 break; | |
| 899 default: | |
| 900 /* ?? */ | |
| 901 break; | |
| 902 } | |
| 903 } | |
| 904 } | |
| 905 } | |
|
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906 #if SDL_INPUT_LINUXEV |
| 0 | 907 static __inline__ int EV_AxisCorrect(SDL_Joystick *joystick, int which, int value) |
| 908 { | |
| 909 struct axis_correct *correct; | |
| 910 | |
| 911 correct = &joystick->hwdata->abs_correct[which]; | |
| 912 if ( correct->used ) { | |
| 913 if ( value > correct->coef[0] ) { | |
| 914 if ( value < correct->coef[1] ) { | |
| 915 return 0; | |
| 916 } | |
| 917 value -= correct->coef[1]; | |
| 918 } else { | |
| 919 value -= correct->coef[0]; | |
| 920 } | |
| 921 value *= correct->coef[2]; | |
| 922 value >>= 14; | |
| 923 } | |
|
554
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|
924 |
| 0 | 925 /* Clamp and return */ |
| 1275 | 926 if ( value < -32768 ) return -32768; |
|
554
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927 if ( value > 32767 ) return 32767; |
|
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928 |
| 0 | 929 return value; |
| 930 } | |
| 931 | |
| 932 static __inline__ void EV_HandleEvents(SDL_Joystick *joystick) | |
| 933 { | |
| 934 struct input_event events[32]; | |
| 935 int i, len; | |
| 936 int code; | |
| 937 | |
|
892
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938 #ifndef NO_LOGICAL_JOYSTICKS |
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939 if (SDL_joylist[joystick->index].fname == NULL) { |
|
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940 SDL_joylist_head(i, joystick->index); |
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941 return EV_HandleEvents(SDL_joylist[i].joy); |
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942 } |
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943 #endif |
|
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944 |
| 0 | 945 while ((len=read(joystick->hwdata->fd, events, (sizeof events))) > 0) { |
| 946 len /= sizeof(events[0]); | |
| 947 for ( i=0; i<len; ++i ) { | |
| 948 code = events[i].code; | |
| 949 switch (events[i].type) { | |
| 950 case EV_KEY: | |
| 951 if ( code >= BTN_MISC ) { | |
| 952 code -= BTN_MISC; | |
|
892
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953 #ifndef NO_LOGICAL_JOYSTICKS |
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954 if (!LogicalJoystickButton(joystick, |
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955 joystick->hwdata->key_map[code], |
|
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956 events[i].value)) |
|
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957 #endif |
| 0 | 958 SDL_PrivateJoystickButton(joystick, |
| 959 joystick->hwdata->key_map[code], | |
| 960 events[i].value); | |
| 961 } | |
| 962 break; | |
| 963 case EV_ABS: | |
| 964 switch (code) { | |
| 965 case ABS_HAT0X: | |
| 966 case ABS_HAT0Y: | |
| 967 case ABS_HAT1X: | |
| 968 case ABS_HAT1Y: | |
| 969 case ABS_HAT2X: | |
| 970 case ABS_HAT2Y: | |
| 971 case ABS_HAT3X: | |
| 972 case ABS_HAT3Y: | |
| 973 code -= ABS_HAT0X; | |
| 974 HandleHat(joystick, code/2, code%2, | |
| 975 events[i].value); | |
| 976 break; | |
| 977 default: | |
| 978 events[i].value = EV_AxisCorrect(joystick, code, events[i].value); | |
|
892
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979 #ifndef NO_LOGICAL_JOYSTICKS |
|
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980 if (!LogicalJoystickAxis(joystick, |
|
dc29e5907694
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981 joystick->hwdata->abs_map[code], |
|
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|
982 events[i].value)) |
|
dc29e5907694
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|
983 #endif |
| 0 | 984 SDL_PrivateJoystickAxis(joystick, |
| 985 joystick->hwdata->abs_map[code], | |
| 986 events[i].value); | |
| 987 break; | |
| 988 } | |
| 989 break; | |
| 990 case EV_REL: | |
| 991 switch (code) { | |
| 992 case REL_X: | |
| 993 case REL_Y: | |
| 994 code -= REL_X; | |
| 995 HandleBall(joystick, code/2, code%2, | |
| 996 events[i].value); | |
| 997 break; | |
| 998 default: | |
| 999 break; | |
| 1000 } | |
| 1001 break; | |
| 1002 default: | |
| 1003 break; | |
| 1004 } | |
| 1005 } | |
| 1006 } | |
| 1007 } | |
|
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1008 #endif /* SDL_INPUT_LINUXEV */ |
| 0 | 1009 |
| 1010 void SDL_SYS_JoystickUpdate(SDL_Joystick *joystick) | |
| 1011 { | |
| 1012 int i; | |
| 1013 | |
|
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1014 #if SDL_INPUT_LINUXEV |
| 0 | 1015 if ( joystick->hwdata->is_hid ) |
| 1016 EV_HandleEvents(joystick); | |
| 1017 else | |
| 1018 #endif | |
| 1019 JS_HandleEvents(joystick); | |
| 1020 | |
| 1021 /* Deliver ball motion updates */ | |
| 1022 for ( i=0; i<joystick->nballs; ++i ) { | |
| 1023 int xrel, yrel; | |
| 1024 | |
| 1025 xrel = joystick->hwdata->balls[i].axis[0]; | |
| 1026 yrel = joystick->hwdata->balls[i].axis[1]; | |
| 1027 if ( xrel || yrel ) { | |
| 1028 joystick->hwdata->balls[i].axis[0] = 0; | |
| 1029 joystick->hwdata->balls[i].axis[1] = 0; | |
| 1030 SDL_PrivateJoystickBall(joystick, (Uint8)i, xrel, yrel); | |
| 1031 } | |
| 1032 } | |
| 1033 } | |
| 1034 | |
| 1035 /* Function to close a joystick after use */ | |
| 1036 void SDL_SYS_JoystickClose(SDL_Joystick *joystick) | |
| 1037 { | |
|
892
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|
1038 #ifndef NO_LOGICAL_JOYSTICKS |
|
dc29e5907694
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|
1039 register int i; |
|
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1040 if (SDL_joylist[joystick->index].fname == NULL) { |
|
dc29e5907694
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1041 SDL_joylist_head(i, joystick->index); |
|
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1042 SDL_JoystickClose(SDL_joylist[i].joy); |
|
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1043 } |
|
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1044 #endif |
|
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1045 |
| 0 | 1046 if ( joystick->hwdata ) { |
|
892
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1047 #ifndef NO_LOGICAL_JOYSTICKS |
|
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1048 if (SDL_joylist[joystick->index].fname != NULL) |
|
dc29e5907694
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|
1049 #endif |
| 0 | 1050 close(joystick->hwdata->fd); |
| 1051 if ( joystick->hwdata->hats ) { | |
|
1336
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Use SDL_ prefixed versions of C library functions.
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|
1052 SDL_free(joystick->hwdata->hats); |
| 0 | 1053 } |
| 1054 if ( joystick->hwdata->balls ) { | |
|
1336
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Use SDL_ prefixed versions of C library functions.
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|
1055 SDL_free(joystick->hwdata->balls); |
| 0 | 1056 } |
|
1336
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Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
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changeset
|
1057 SDL_free(joystick->hwdata); |
| 0 | 1058 joystick->hwdata = NULL; |
| 1059 } | |
| 1060 } | |
| 1061 | |
| 1062 /* Function to perform any system-specific joystick related cleanup */ | |
| 1063 void SDL_SYS_JoystickQuit(void) | |
| 1064 { | |
| 1065 int i; | |
| 1066 | |
|
892
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Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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|
1067 for ( i=0; SDL_joylist[i].fname; ++i ) { |
|
1336
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Use SDL_ prefixed versions of C library functions.
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|
1068 SDL_free(SDL_joylist[i].fname); |
| 0 | 1069 } |
|
892
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Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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|
1070 SDL_joylist[0].fname = NULL; |
| 0 | 1071 } |
| 1072 |