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annotate controller_info.c @ 1596:437e80a700aa

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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
author Michael Pavone <pavone@retrodev.com>
date Sun, 22 Jul 2018 17:48:46 -0700
parents
children 75aa418d0227
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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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1 #include <string.h>
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2 #include "render_sdl.h"
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3 #include "controller_info.h"
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4
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5 typedef struct {
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6 char const *name;
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7 controller_info info;
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8 } heuristic;
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9
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10 heuristic heuristics[] = {
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11 //TODO: Add more heuristic rules
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12 {"DualShock 4", {.type = TYPE_PSX, .subtype = SUBTYPE_PS4}},
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13 {"PS4", {.type = TYPE_PSX, .subtype = SUBTYPE_PS4}},
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14 {"PS3", {.type = TYPE_PSX, .subtype = SUBTYPE_PS3}},
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15 {"X360", {.type = TYPE_XBOX, .subtype = SUBTYPE_X360}},
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16 {"Xbox 360", {.type = TYPE_XBOX, .subtype = SUBTYPE_X360}},
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17 {"X-box 360", {.type = TYPE_XBOX, .subtype = SUBTYPE_X360}},
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18 {"Xbox One", {.type = TYPE_XBOX, .subtype = SUBTYPE_XBONE}},
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19 {"X-box One", {.type = TYPE_XBOX, .subtype = SUBTYPE_XBONE}},
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20 {"WiiU", {.type = TYPE_NINTENDO, .subtype = SUBTYPE_WIIU}},
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21 {"Wii U", {.type = TYPE_NINTENDO, .subtype = SUBTYPE_WIIU}},
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22 {"Nintendo Switch", {.type = TYPE_NINTENDO, .subtype = SUBTYPE_SWITCH}},
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23 {"Saturn", {.type = TYPE_SEGA, .subtype = SUBTYPE_SATURN}}
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24 };
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25 const uint32_t num_heuristics = sizeof(heuristics)/sizeof(*heuristics);
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26
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27 controller_info get_controller_info(int joystick)
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28 {
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29 SDL_GameController *control = render_get_controller(joystick);
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30 if (!control) {
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31 return (controller_info) {
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32 .type = TYPE_UNKNOWN,
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33 .subtype = SUBTYPE_UNKNOWN,
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34 .variant = VARIANT_NORMAL,
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35 .name = SDL_JoystickName(render_get_joystick(joystick))
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36 };
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37 }
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38 const char *name = SDL_GameControllerName(control);
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39 SDL_GameControllerClose(control);
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40 for (uint32_t i = 0; i < num_heuristics; i++)
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41 {
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42 if (strstr(name, heuristics[i].name)) {
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43 controller_info res = heuristics[i].info;
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44 res.name = name;
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45 return res;
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46 }
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47 }
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48 //default to a 360
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49 return (controller_info){
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50 .type = TYPE_GENERIC_MAPPING,
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51 .subtype = SUBTYPE_UNKNOWN,
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52 .variant = VARIANT_NORMAL,
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53 .name = name
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54 };
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55 }
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56
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57 char const *labels_xbox[] = {
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58 "A", "B", "X", "Y", "Back", NULL, "Start", "Click", "Click", "White", "Black", "LT", "RT"
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59 };
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60 char const *labels_360[] = {
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61 "A", "B", "X", "Y", "Back", "Guide", "Start", "Click", "Click", "LB", "RB", "LT", "RT"
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62 };
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63 static char const *labels_xbone[] = {
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64 "A", "B", "X", "Y", "View", "Guide", "Menu", "Click", "Click", "LB", "RB", "LT", "RT"
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65 };
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66 static char const *labels_ps3[] = {
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67 "cross", "circle", "square", "triangle", "Select", "Guide", "Start", "L3", "R3", "L1", "R1", "L2", "R2"
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68 };
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69 static char const *labels_ps4[] = {
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70 "cross", "circle", "square", "triangle", "Share", "Guide", "Options", "L3", "R3", "L1", "R1", "L2", "R2"
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71 };
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72 static char const *labels_nintendo[] = {
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73 "B", "A", "Y", "X", "-", "Home", "+", "Click", "Click", "L", "R", "ZL", "ZR"
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74 };
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75 static char const *labels_genesis[] = {
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76 "A", "B", "X", "Y", NULL, NULL, "Start", NULL, NULL, "Z", "C", NULL, "Mode"
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77 };
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78 static char const *labels_saturn[] = {
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79 "A", "B", "X", "Y", NULL, NULL, "Start", NULL, NULL, "Z", "C", "LT", "RT"
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80 };
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81
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82 static const char** label_source(controller_info *info)
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83 {
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84 if (info->type == TYPE_UNKNOWN || info->type == TYPE_GENERIC_MAPPING || info->subtype ==SUBTYPE_X360) {
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85 return labels_360;
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86 } else if (info->type == TYPE_NINTENDO) {
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87 return labels_nintendo;
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88 } else if (info->type == TYPE_PSX) {
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89 if (info->subtype == SUBTYPE_PS4) {
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90 return labels_ps4;
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91 } else {
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92 return labels_ps3;
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93 }
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94 } else if (info->type == TYPE_XBOX) {
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95 if (info->subtype == SUBTYPE_XBONE) {
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96 return labels_xbone;
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97 } else {
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98 return labels_xbox;
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99 }
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100 } else {
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101 if (info->subtype == SUBTYPE_GENESIS) {
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102 return labels_genesis;
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103 } else {
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104 return labels_saturn;
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105 }
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106 }
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107 }
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108
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109 const char *get_button_label(controller_info *info, int button)
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110 {
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111 return label_source(info)[button];
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112 }
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113
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114 static char const *axis_labels[] = {
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115 "Left X", "Left Y", "Right X", "Right Y"
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116 };
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117 const char *get_axis_label(controller_info *info, int axis)
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118 {
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119 if (axis < SDL_CONTROLLER_AXIS_TRIGGERLEFT) {
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120 return axis_labels[axis];
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121 } else {
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122 return label_source(info)[axis - SDL_CONTROLLER_AXIS_TRIGGERLEFT + SDL_CONTROLLER_BUTTON_RIGHTSHOULDER + 1];
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123 }
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124 }
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125