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#include <string.h>
#include "render_sdl.h"
#include "controller_info.h"
#include "config.h"
typedef struct {
char const *name;
controller_info info;
} heuristic;
static heuristic heuristics[] = {
//TODO: Add more heuristic rules
{"DualShock 4", {.type = TYPE_PSX, .subtype = SUBTYPE_PS4}},
{"PS4", {.type = TYPE_PSX, .subtype = SUBTYPE_PS4}},
{"PS3", {.type = TYPE_PSX, .subtype = SUBTYPE_PS3}},
{"X360", {.type = TYPE_XBOX, .subtype = SUBTYPE_X360}},
{"Xbox 360", {.type = TYPE_XBOX, .subtype = SUBTYPE_X360}},
{"X-box 360", {.type = TYPE_XBOX, .subtype = SUBTYPE_X360}},
{"Xbox One", {.type = TYPE_XBOX, .subtype = SUBTYPE_XBONE}},
{"X-box One", {.type = TYPE_XBOX, .subtype = SUBTYPE_XBONE}},
{"WiiU", {.type = TYPE_NINTENDO, .subtype = SUBTYPE_WIIU}},
{"Wii U", {.type = TYPE_NINTENDO, .subtype = SUBTYPE_WIIU}},
{"Nintendo Switch", {.type = TYPE_NINTENDO, .subtype = SUBTYPE_SWITCH}},
{"Saturn", {.type = TYPE_SEGA, .subtype = SUBTYPE_SATURN}}
};
const uint32_t num_heuristics = sizeof(heuristics)/sizeof(*heuristics);
static tern_node *info_config;
static uint8_t loaded;
static const char *subtype_names[] = {
"unknown",
"xbox",
"xbox 360",
"xbone",
"ps2",
"ps3",
"ps4",
"wiiu",
"switch",
"genesis",
"saturn"
};
static const char *variant_names[] = {
"normal",
"6b bumpers",
"6b right"
};
static void load_ctype_config(void)
{
if (!loaded) {
info_config = load_overrideable_config("controller_types.cfg", "controller_types.cfg");
loaded = 1;
}
}
controller_info get_controller_info(int joystick)
{
load_ctype_config();
char guid_string[33];
SDL_Joystick *stick = render_get_joystick(joystick);
SDL_GameController *control = render_get_controller(joystick);
SDL_JoystickGetGUIDString(SDL_JoystickGetGUID(stick), guid_string, sizeof(guid_string));
tern_node *info = tern_find_node(info_config, guid_string);
if (info) {
controller_info res;
char *subtype = tern_find_ptr(info, "subtype");
res.subtype = SUBTYPE_UNKNOWN;
if (subtype) {
for (int i = 0; i < SUBTYPE_NUM; i++)
{
if (!strcmp(subtype_names[i], subtype)) {
res.subtype = i;
break;
}
}
}
switch (res.subtype)
{
case SUBTYPE_XBOX:
case SUBTYPE_X360:
case SUBTYPE_XBONE:
res.type = TYPE_XBOX;
break;
case SUBTYPE_PS2:
case SUBTYPE_PS3:
case SUBTYPE_PS4:
res.type = TYPE_PSX;
break;
case SUBTYPE_WIIU:
case SUBTYPE_SWITCH:
res.type = TYPE_NINTENDO;
break;
case SUBTYPE_GENESIS:
case SUBTYPE_SATURN:
res.type = TYPE_SEGA;
break;
default:
res.type = TYPE_UNKNOWN;
break;
}
char *variant = tern_find_ptr(info, "variant");
res.variant = VARIANT_NORMAL;
if (variant) {
for (int i = 0; i < VARIANT_NUM; i++)
{
if (!strcmp(variant_names[i], variant)) {
res.variant = i;
break;
}
}
}
res.name = control ? SDL_GameControllerName(control) : SDL_JoystickName(stick);
if (control) {
SDL_GameControllerClose(control);
}
return res;
}
if (!control) {
return (controller_info) {
.type = TYPE_UNKNOWN,
.subtype = SUBTYPE_UNKNOWN,
.variant = VARIANT_NORMAL,
.name = SDL_JoystickName(stick)
};
}
const char *name = SDL_GameControllerName(control);
SDL_GameControllerClose(control);
for (uint32_t i = 0; i < num_heuristics; i++)
{
if (strstr(name, heuristics[i].name)) {
controller_info res = heuristics[i].info;
res.name = name;
return res;
}
}
//default to a 360
return (controller_info){
.type = TYPE_GENERIC_MAPPING,
.subtype = SUBTYPE_UNKNOWN,
.variant = VARIANT_NORMAL,
.name = name
};
}
static void mappings_iter(char *key, tern_val val, uint8_t valtype, void *data)
{
if (valtype != TVAL_NODE) {
return;
}
char *mapping = tern_find_ptr(val.ptrval, "mapping");
if (mapping) {
SDL_GameControllerAddMapping(mapping);
}
}
void controller_add_mappings(void)
{
load_ctype_config();
tern_foreach(info_config, mappings_iter, NULL);
}
void save_controller_info(int joystick, controller_info *info)
{
char guid_string[33];
SDL_JoystickGetGUIDString(SDL_JoystickGetGUID(render_get_joystick(joystick)), guid_string, sizeof(guid_string));
tern_node *existing = tern_find_node(info_config, guid_string);
existing = tern_insert_ptr(existing, "subtype", (void *)subtype_names[info->subtype]);
existing = tern_insert_ptr(existing, "variant", (void *)variant_names[info->variant]);
info_config = tern_insert_node(info_config, guid_string, existing);
persist_config_at(info_config, "controller_types.cfg");
}
void save_controller_mapping(int joystick, char *mapping_string)
{
char guid_string[33];
SDL_JoystickGetGUIDString(SDL_JoystickGetGUID(render_get_joystick(joystick)), guid_string, sizeof(guid_string));
tern_node *existing = tern_find_node(info_config, guid_string);
existing = tern_insert_ptr(existing, "mapping", mapping_string);
info_config = tern_insert_node(info_config, guid_string, existing);
persist_config_at(info_config, "controller_types.cfg");
}
char const *labels_xbox[] = {
"A", "B", "X", "Y", "Back", NULL, "Start", "Click", "Click", "White", "Black", "LT", "RT"
};
char const *labels_360[] = {
"A", "B", "X", "Y", "Back", "Xbox", "Start", "Click", "Click", "LB", "RB", "LT", "RT"
};
static char const *labels_xbone[] = {
"A", "B", "X", "Y", "View", "Xbox", "Menu", "Click", "Click", "LB", "RB", "LT", "RT"
};
static char const *labels_ps3[] = {
"cross", "circle", "square", "triangle", "Select", "PS", "Start", "L3", "R3", "L1", "R1", "L2", "R2"
};
static char const *labels_ps4[] = {
"cross", "circle", "square", "triangle", "Share", "PS", "Options", "L3", "R3", "L1", "R1", "L2", "R2"
};
static char const *labels_nintendo[] = {
"B", "A", "Y", "X", "-", "Home", "+", "Click", "Click", "L", "R", "ZL", "ZR"
};
static char const *labels_genesis[] = {
"A", "B", "X", "Y", NULL, NULL, "Start", NULL, NULL, "Z", "C", NULL, "Mode"
};
static char const *labels_saturn[] = {
"A", "B", "X", "Y", NULL, NULL, "Start", NULL, NULL, "Z", "C", "LT", "RT"
};
static const char** label_source(controller_info *info)
{
if (info->type == TYPE_UNKNOWN || info->type == TYPE_GENERIC_MAPPING || info->subtype ==SUBTYPE_X360) {
return labels_360;
} else if (info->type == TYPE_NINTENDO) {
return labels_nintendo;
} else if (info->type == TYPE_PSX) {
if (info->subtype == SUBTYPE_PS4) {
return labels_ps4;
} else {
return labels_ps3;
}
} else if (info->type == TYPE_XBOX) {
if (info->subtype == SUBTYPE_XBONE) {
return labels_xbone;
} else {
return labels_xbox;
}
} else {
if (info->subtype == SUBTYPE_GENESIS) {
return labels_genesis;
} else {
return labels_saturn;
}
}
}
const char *get_button_label(controller_info *info, int button)
{
if (button >= SDL_CONTROLLER_BUTTON_DPAD_UP) {
static char const * dirs[] = {"Up", "Down", "Left", "Right"};
return dirs[button - SDL_CONTROLLER_BUTTON_DPAD_UP];
}
return label_source(info)[button];
}
static char const *axis_labels[] = {
"Left X", "Left Y", "Right X", "Right Y"
};
const char *get_axis_label(controller_info *info, int axis)
{
if (axis < SDL_CONTROLLER_AXIS_TRIGGERLEFT) {
return axis_labels[axis];
} else {
return label_source(info)[axis - SDL_CONTROLLER_AXIS_TRIGGERLEFT + SDL_CONTROLLER_BUTTON_RIGHTSHOULDER + 1];
}
}
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