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annotate controller_info.c @ 1780:fc9bea5ee079

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Fix off-by-one error in evdev init code and allow ALSA device to be specified in config
author Michael Pavone <pavone@retrodev.com>
date Sun, 10 Mar 2019 22:11:32 -0700
parents 3a8c4ee68568
children a4cae960fd08
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rev   line source
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1 #include <string.h>
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2 #include <stdlib.h>
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3 #ifndef USE_FBDEV
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4 #include "render_sdl.h"
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5 #endif
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6 #include "controller_info.h"
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7 #include "config.h"
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8 #include "util.h"
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9
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10 typedef struct {
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11 char const *name;
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12 controller_info info;
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13 } heuristic;
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14
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15 static heuristic heuristics[] = {
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16 //TODO: Add more heuristic rules
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17 {"DualShock 4", {.type = TYPE_PSX, .subtype = SUBTYPE_PS4}},
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18 {"PS4", {.type = TYPE_PSX, .subtype = SUBTYPE_PS4}},
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19 {"PS3", {.type = TYPE_PSX, .subtype = SUBTYPE_PS3}},
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20 {"X360", {.type = TYPE_XBOX, .subtype = SUBTYPE_X360}},
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21 {"Xbox 360", {.type = TYPE_XBOX, .subtype = SUBTYPE_X360}},
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22 {"X-box 360", {.type = TYPE_XBOX, .subtype = SUBTYPE_X360}},
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23 {"Xbox One", {.type = TYPE_XBOX, .subtype = SUBTYPE_XBONE}},
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24 {"X-box One", {.type = TYPE_XBOX, .subtype = SUBTYPE_XBONE}},
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25 {"WiiU", {.type = TYPE_NINTENDO, .subtype = SUBTYPE_WIIU}},
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26 {"Wii U", {.type = TYPE_NINTENDO, .subtype = SUBTYPE_WIIU}},
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27 {"Nintendo Switch", {.type = TYPE_NINTENDO, .subtype = SUBTYPE_SWITCH}},
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28 {"Saturn", {.type = TYPE_SEGA, .subtype = SUBTYPE_SATURN}}
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29 };
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30 const uint32_t num_heuristics = sizeof(heuristics)/sizeof(*heuristics);
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31
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32 static tern_node *info_config;
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33 static uint8_t loaded;
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34 static const char *subtype_names[] = {
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35 "unknown",
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36 "xbox",
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37 "xbox 360",
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38 "xbone",
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39 "ps2",
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40 "ps3",
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41 "ps4",
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42 "wiiu",
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43 "switch",
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44 "genesis",
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45 "saturn"
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46 };
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47 static const char *subtype_human_names[] = {
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48 "unknown",
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49 "Xbos",
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50 "Xbox 360",
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51 "Xbox One",
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52 "PS2",
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53 "PS3",
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54 "PS4",
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55 "Wii-U",
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56 "Switch",
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57 "Genesis",
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58 "Saturn"
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59 };
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60 static const char *variant_names[] = {
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61 "normal",
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62 "6b bumpers",
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63 "6b right"
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64 };
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65
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66 static void load_ctype_config(void)
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67 {
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68 if (!loaded) {
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69 info_config = load_overrideable_config("controller_types.cfg", "controller_types.cfg");
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70 loaded = 1;
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71 }
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72 }
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73
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74 controller_info get_controller_info(int joystick)
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75 {
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76 #ifndef USE_FBDEV
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77 load_ctype_config();
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78 char guid_string[33];
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79 SDL_Joystick *stick = render_get_joystick(joystick);
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80 SDL_GameController *control = render_get_controller(joystick);
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81 SDL_JoystickGetGUIDString(SDL_JoystickGetGUID(stick), guid_string, sizeof(guid_string));
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82 tern_node *info = tern_find_node(info_config, guid_string);
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83 if (info) {
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84 controller_info res;
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85 char *subtype = tern_find_ptr(info, "subtype");
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86 res.subtype = SUBTYPE_UNKNOWN;
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87 if (subtype) {
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88 for (int i = 0; i < SUBTYPE_NUM; i++)
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89 {
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90 if (!strcmp(subtype_names[i], subtype)) {
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91 res.subtype = i;
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92 break;
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93 }
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94 }
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95 }
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96 switch (res.subtype)
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97 {
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98 case SUBTYPE_XBOX:
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99 case SUBTYPE_X360:
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100 case SUBTYPE_XBONE:
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101 res.type = TYPE_XBOX;
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102 break;
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103 case SUBTYPE_PS2:
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104 case SUBTYPE_PS3:
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105 case SUBTYPE_PS4:
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106 res.type = TYPE_PSX;
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107 break;
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108 case SUBTYPE_WIIU:
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109 case SUBTYPE_SWITCH:
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110 res.type = TYPE_NINTENDO;
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111 break;
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112 case SUBTYPE_GENESIS:
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113 case SUBTYPE_SATURN:
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diff changeset
114 res.type = TYPE_SEGA;
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115 break;
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diff changeset
116 default:
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diff changeset
117 res.type = TYPE_UNKNOWN;
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118 break;
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diff changeset
119 }
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diff changeset
120 char *variant = tern_find_ptr(info, "variant");
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diff changeset
121 res.variant = VARIANT_NORMAL;
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diff changeset
122 if (variant) {
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123 for (int i = 0; i < VARIANT_NUM; i++)
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124 {
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diff changeset
125 if (!strcmp(variant_names[i], variant)) {
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126 res.variant = i;
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127 break;
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diff changeset
128 }
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129 }
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diff changeset
130 }
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131 res.name = control ? SDL_GameControllerName(control) : SDL_JoystickName(stick);
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132 if (control) {
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133 SDL_GameControllerClose(control);
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134 }
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135 return res;
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136 }
1596
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137 if (!control) {
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138 return (controller_info) {
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139 .type = TYPE_UNKNOWN,
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140 .subtype = SUBTYPE_UNKNOWN,
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141 .variant = VARIANT_NORMAL,
1599
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142 .name = SDL_JoystickName(stick)
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143 };
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144 }
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145 const char *name = SDL_GameControllerName(control);
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146 SDL_GameControllerClose(control);
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147 for (uint32_t i = 0; i < num_heuristics; i++)
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148 {
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149 if (strstr(name, heuristics[i].name)) {
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150 controller_info res = heuristics[i].info;
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151 res.name = name;
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152 return res;
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153 }
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154 }
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155 #else
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156 const char *name = "Unknown";
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157 #endif
1596
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158 //default to a 360
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159 return (controller_info){
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160 .type = TYPE_GENERIC_MAPPING,
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161 .subtype = SUBTYPE_UNKNOWN,
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162 .variant = VARIANT_NORMAL,
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diff changeset
163 .name = name
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164 };
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165 }
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diff changeset
166
1603
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diff changeset
167 static void mappings_iter(char *key, tern_val val, uint8_t valtype, void *data)
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diff changeset
168 {
1779
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diff changeset
169 #ifndef USE_FBDEV
1603
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170 if (valtype != TVAL_NODE) {
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diff changeset
171 return;
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diff changeset
172 }
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diff changeset
173 char *mapping = tern_find_ptr(val.ptrval, "mapping");
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diff changeset
174 if (mapping) {
1604
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diff changeset
175 const char *parts[] = {key, ",", mapping};
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diff changeset
176 char * full = alloc_concat_m(3, parts);
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diff changeset
177 SDL_GameControllerAddMapping(full);
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diff changeset
178 free(full);
1603
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diff changeset
179 }
1779
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diff changeset
180 #endif
1603
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diff changeset
181 }
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diff changeset
182
c0727712d529 Read extral SDL2 mappings on startup from controller_types.cfg
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diff changeset
183 void controller_add_mappings(void)
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diff changeset
184 {
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diff changeset
185 load_ctype_config();
1604
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diff changeset
186 if (info_config) {
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diff changeset
187 tern_foreach(info_config, mappings_iter, NULL);
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188 }
1603
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diff changeset
189 }
c0727712d529 Read extral SDL2 mappings on startup from controller_types.cfg
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diff changeset
190
1599
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diff changeset
191 void save_controller_info(int joystick, controller_info *info)
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diff changeset
192 {
1779
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diff changeset
193 #ifndef USE_FBDEV
1599
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diff changeset
194 char guid_string[33];
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195 SDL_JoystickGetGUIDString(SDL_JoystickGetGUID(render_get_joystick(joystick)), guid_string, sizeof(guid_string));
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diff changeset
196 tern_node *existing = tern_find_node(info_config, guid_string);
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diff changeset
197 existing = tern_insert_ptr(existing, "subtype", (void *)subtype_names[info->subtype]);
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diff changeset
198 existing = tern_insert_ptr(existing, "variant", (void *)variant_names[info->variant]);
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diff changeset
199 info_config = tern_insert_node(info_config, guid_string, existing);
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diff changeset
200 persist_config_at(info_config, "controller_types.cfg");
1779
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diff changeset
201 #endif
1599
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diff changeset
202 }
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diff changeset
203
1600
7f39c40b4b25 WIP UI for creating an SDL2 mapping for controllers that don't have one
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diff changeset
204 void save_controller_mapping(int joystick, char *mapping_string)
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diff changeset
205 {
1779
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diff changeset
206 #ifndef USE_FBDEV
1600
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diff changeset
207 char guid_string[33];
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diff changeset
208 SDL_JoystickGetGUIDString(SDL_JoystickGetGUID(render_get_joystick(joystick)), guid_string, sizeof(guid_string));
7f39c40b4b25 WIP UI for creating an SDL2 mapping for controllers that don't have one
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diff changeset
209 tern_node *existing = tern_find_node(info_config, guid_string);
7f39c40b4b25 WIP UI for creating an SDL2 mapping for controllers that don't have one
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diff changeset
210 existing = tern_insert_ptr(existing, "mapping", mapping_string);
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diff changeset
211 info_config = tern_insert_node(info_config, guid_string, existing);
7f39c40b4b25 WIP UI for creating an SDL2 mapping for controllers that don't have one
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diff changeset
212 persist_config_at(info_config, "controller_types.cfg");
1779
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diff changeset
213 #endif
1600
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diff changeset
214 }
7f39c40b4b25 WIP UI for creating an SDL2 mapping for controllers that don't have one
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diff changeset
215
1596
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diff changeset
216 char const *labels_xbox[] = {
437e80a700aa Initial heuristics for detecting controller types and showing different labels in UI. Modified controller settings view to first display a list of controllers, only showing mapping after selecting controller
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diff changeset
217 "A", "B", "X", "Y", "Back", NULL, "Start", "Click", "Click", "White", "Black", "LT", "RT"
437e80a700aa Initial heuristics for detecting controller types and showing different labels in UI. Modified controller settings view to first display a list of controllers, only showing mapping after selecting controller
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diff changeset
218 };
437e80a700aa Initial heuristics for detecting controller types and showing different labels in UI. Modified controller settings view to first display a list of controllers, only showing mapping after selecting controller
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diff changeset
219 char const *labels_360[] = {
1597
75aa418d0227 Use better names for "Guide" button on PS and Xbox controllers, handle d-pad directions in get_button_label
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diff changeset
220 "A", "B", "X", "Y", "Back", "Xbox", "Start", "Click", "Click", "LB", "RB", "LT", "RT"
1596
437e80a700aa Initial heuristics for detecting controller types and showing different labels in UI. Modified controller settings view to first display a list of controllers, only showing mapping after selecting controller
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diff changeset
221 };
437e80a700aa Initial heuristics for detecting controller types and showing different labels in UI. Modified controller settings view to first display a list of controllers, only showing mapping after selecting controller
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parents:
diff changeset
222 static char const *labels_xbone[] = {
1597
75aa418d0227 Use better names for "Guide" button on PS and Xbox controllers, handle d-pad directions in get_button_label
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diff changeset
223 "A", "B", "X", "Y", "View", "Xbox", "Menu", "Click", "Click", "LB", "RB", "LT", "RT"
1596
437e80a700aa Initial heuristics for detecting controller types and showing different labels in UI. Modified controller settings view to first display a list of controllers, only showing mapping after selecting controller
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diff changeset
224 };
437e80a700aa Initial heuristics for detecting controller types and showing different labels in UI. Modified controller settings view to first display a list of controllers, only showing mapping after selecting controller
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diff changeset
225 static char const *labels_ps3[] = {
1597
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diff changeset
226 "cross", "circle", "square", "triangle", "Select", "PS", "Start", "L3", "R3", "L1", "R1", "L2", "R2"
1596
437e80a700aa Initial heuristics for detecting controller types and showing different labels in UI. Modified controller settings view to first display a list of controllers, only showing mapping after selecting controller
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diff changeset
227 };
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228 static char const *labels_ps4[] = {
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229 "cross", "circle", "square", "triangle", "Share", "PS", "Options", "L3", "R3", "L1", "R1", "L2", "R2"
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230 };
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231 static char const *labels_nintendo[] = {
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232 "B", "A", "Y", "X", "-", "Home", "+", "Click", "Click", "L", "R", "ZL", "ZR"
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233 };
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234 static char const *labels_genesis[] = {
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235 "A", "B", "X", "Y", NULL, NULL, "Start", NULL, NULL, "Z", "C", NULL, "Mode"
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236 };
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237 static char const *labels_saturn[] = {
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238 "A", "B", "X", "Y", NULL, NULL, "Start", NULL, NULL, "Z", "C", "LT", "RT"
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239 };
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240
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241 static const char** label_source(controller_info *info)
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242 {
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243 if (info->type == TYPE_UNKNOWN || info->type == TYPE_GENERIC_MAPPING || info->subtype ==SUBTYPE_X360) {
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244 return labels_360;
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245 } else if (info->type == TYPE_NINTENDO) {
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246 return labels_nintendo;
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247 } else if (info->type == TYPE_PSX) {
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248 if (info->subtype == SUBTYPE_PS4) {
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249 return labels_ps4;
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250 } else {
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251 return labels_ps3;
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252 }
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253 } else if (info->type == TYPE_XBOX) {
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254 if (info->subtype == SUBTYPE_XBONE) {
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255 return labels_xbone;
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256 } else {
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257 return labels_xbox;
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258 }
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259 } else {
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260 if (info->subtype == SUBTYPE_GENESIS) {
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261 return labels_genesis;
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262 } else {
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263 return labels_saturn;
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264 }
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265 }
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266 }
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267
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268 const char *get_button_label(controller_info *info, int button)
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269 {
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270 #ifndef USE_FBDEV
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271 if (button >= SDL_CONTROLLER_BUTTON_DPAD_UP) {
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272 static char const * dirs[] = {"Up", "Down", "Left", "Right"};
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273 return dirs[button - SDL_CONTROLLER_BUTTON_DPAD_UP];
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274 }
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275 #endif
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276 return label_source(info)[button];
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277 }
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278
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279 static char const *axis_labels[] = {
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280 "Left X", "Left Y", "Right X", "Right Y"
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281 };
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282 const char *get_axis_label(controller_info *info, int axis)
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283 {
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284 #ifndef USE_FBDEV
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285 if (axis < SDL_CONTROLLER_AXIS_TRIGGERLEFT) {
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286 return axis_labels[axis];
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287 } else {
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288 return label_source(info)[axis - SDL_CONTROLLER_AXIS_TRIGGERLEFT + SDL_CONTROLLER_BUTTON_RIGHTSHOULDER + 1];
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289 }
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290 #else
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291 return NULL;
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292 #endif
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293 }
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294
1608
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295 char *make_controller_type_key(controller_info *info)
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296 {
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297 const char *subtype;
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298 if (info->subtype == SUBTYPE_UNKNOWN) {
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299 switch(info->type)
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300 {
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301 case TYPE_XBOX:
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302 subtype = subtype_names[SUBTYPE_X360];
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303 break;
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304 case TYPE_PSX:
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305 subtype = subtype_names[SUBTYPE_PS4];
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306 break;
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307 case TYPE_NINTENDO:
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308 subtype = subtype_names[SUBTYPE_SWITCH];
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309 break;
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310 default:
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311 subtype = "unknown";
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312 }
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313 } else {
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diff changeset
314 subtype = subtype_names[info->subtype];
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315 }
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diff changeset
316 const char *variant = variant_names[info->variant];
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diff changeset
317 const char *parts[] = {subtype, "_", variant};
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318 char *ret = alloc_concat_m(3, parts);
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diff changeset
319 for (char *cur = ret; *cur; cur++)
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320 {
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321 if (*cur == ' ')
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322 {
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diff changeset
323 *cur = '_';
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324 }
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325 }
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parents: 1604
diff changeset
326 return ret;
419a0a133b5c Allow a gamepad mapping to apply to all controllers, controllers of a particular type (i.e.e 6-button PS4 controllers) or specific controllers (based on SDL2 GUID) in addition to the controller in a certain slot
Michael Pavone <pavone@retrodev.com>
parents: 1604
diff changeset
327 }
419a0a133b5c Allow a gamepad mapping to apply to all controllers, controllers of a particular type (i.e.e 6-button PS4 controllers) or specific controllers (based on SDL2 GUID) in addition to the controller in a certain slot
Michael Pavone <pavone@retrodev.com>
parents: 1604
diff changeset
328
1645
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parents: 1608
diff changeset
329 char *make_human_readable_type_name(controller_info *info)
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parents: 1608
diff changeset
330 {
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parents: 1608
diff changeset
331 const char *base = subtype_human_names[info->subtype];
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parents: 1608
diff changeset
332 char *prefix;
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parents: 1608
diff changeset
333 if (info->variant == VARIANT_NORMAL) {
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parents: 1608
diff changeset
334 prefix = "Normal ";
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parents: 1608
diff changeset
335 } else {
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parents: 1608
diff changeset
336 static const char *parts[] = {"6 button (", NULL, "/", NULL, ") "};
1779
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parents: 1645
diff changeset
337 #ifdef USE_FBDEV
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parents: 1645
diff changeset
338 parts[1] = parts[3] = "??";
3a8c4ee68568 Added raw fbdev/evdev/ALSA render backend
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parents: 1645
diff changeset
339 #else
1645
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parents: 1608
diff changeset
340 if (info->variant == VARIANT_6B_BUMPERS) {
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parents: 1608
diff changeset
341 parts[1] = get_button_label(info, SDL_CONTROLLER_BUTTON_LEFTSHOULDER);
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parents: 1608
diff changeset
342 parts[3] = get_button_label(info, SDL_CONTROLLER_BUTTON_RIGHTSHOULDER);
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Michael Pavone <pavone@retrodev.com>
parents: 1608
diff changeset
343 } else {
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Michael Pavone <pavone@retrodev.com>
parents: 1608
diff changeset
344 parts[1] = get_button_label(info, SDL_CONTROLLER_BUTTON_RIGHTSHOULDER);
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parents: 1608
diff changeset
345 parts[3] = get_axis_label(info, SDL_CONTROLLER_AXIS_TRIGGERRIGHT);
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Michael Pavone <pavone@retrodev.com>
parents: 1608
diff changeset
346 }
1779
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parents: 1645
diff changeset
347 #endif
1645
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parents: 1608
diff changeset
348 prefix = alloc_concat_m(5, parts);
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parents: 1608
diff changeset
349 }
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parents: 1608
diff changeset
350 char *ret = alloc_concat(prefix, base);
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parents: 1608
diff changeset
351 if (info->variant != VARIANT_NORMAL) {
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Michael Pavone <pavone@retrodev.com>
parents: 1608
diff changeset
352 free(prefix);
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Michael Pavone <pavone@retrodev.com>
parents: 1608
diff changeset
353 }
84ef1eb2c96a Added code for actually saving new controller bindings to an appropriate key in the config file
Michael Pavone <pavone@retrodev.com>
parents: 1608
diff changeset
354 return ret;
84ef1eb2c96a Added code for actually saving new controller bindings to an appropriate key in the config file
Michael Pavone <pavone@retrodev.com>
parents: 1608
diff changeset
355 }
84ef1eb2c96a Added code for actually saving new controller bindings to an appropriate key in the config file
Michael Pavone <pavone@retrodev.com>
parents: 1608
diff changeset
356