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gamecontroller: Backport 3.0 'type:' field to 2.0

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This commit is contained in:
Ethan Lee 2023-11-27 17:12:01 -05:00 committed by Sam Lantinga
parent 61cd57d378
commit 757c984ddb
2 changed files with 96 additions and 2 deletions
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3
include/SDL_gamecontroller.h
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@ -73,7 +73,8 @@ typedef enum
SDL_CONTROLLER_TYPE_NVIDIA_SHIELD,
SDL_CONTROLLER_TYPE_NINTENDO_SWITCH_JOYCON_LEFT,
SDL_CONTROLLER_TYPE_NINTENDO_SWITCH_JOYCON_RIGHT,
SDL_CONTROLLER_TYPE_NINTENDO_SWITCH_JOYCON_PAIR
SDL_CONTROLLER_TYPE_NINTENDO_SWITCH_JOYCON_PAIR,
SDL_CONTROLLER_TYPE_MAX
} SDL_GameControllerType;
typedef enum

95
src/joystick/SDL_gamecontroller.c
View file

@ -45,6 +45,8 @@
#define SDL_CONTROLLER_CRC_FIELD "crc:"
#define SDL_CONTROLLER_CRC_FIELD_SIZE 4 /* hard-coded for speed */
#define SDL_CONTROLLER_TYPE_FIELD "type:"
#define SDL_CONTROLLER_TYPE_FIELD_SIZE SDL_strlen(SDL_CONTROLLER_TYPE_FIELD)
#define SDL_CONTROLLER_PLATFORM_FIELD "platform:"
#define SDL_CONTROLLER_PLATFORM_FIELD_SIZE SDL_strlen(SDL_CONTROLLER_PLATFORM_FIELD)
#define SDL_CONTROLLER_HINT_FIELD "hint:"
@ -133,6 +135,7 @@ struct _SDL_GameController
int ref_count _guarded;
const char *name _guarded;
SDL_GameControllerType type _guarded;
ControllerMapping_t *mapping _guarded;
int num_bindings _guarded;
SDL_ExtendedGameControllerBind *bindings _guarded;
@ -850,6 +853,47 @@ static ControllerMapping_t *SDL_PrivateGetControllerMappingForGUID(SDL_JoystickG
return mapping;
}
static const char *map_StringForGameControllerType[] = {
"unknown",
"xbox360",
"xboxone",
"ps3",
"ps4",
"switchpro",
"virtual",
"ps5",
"amazonluna",
"googlestadia",
"nvidiashield",
"joyconleft",
"joyconright",
"joyconpair"
};
SDL_COMPILE_TIME_ASSERT(map_StringForGameControllerType, SDL_arraysize(map_StringForGameControllerType) == SDL_CONTROLLER_TYPE_MAX);
/*
* convert a string to its enum equivalent
*/
static SDL_GameControllerType SDL_GetGameControllerTypeFromString(const char *str)
{
int i;
if (!str || str[0] == '\0') {
return SDL_CONTROLLER_TYPE_UNKNOWN;
}
if (*str == '+' || *str == '-') {
++str;
}
for (i = 0; i < SDL_arraysize(map_StringForGameControllerType); ++i) {
if (SDL_strcasecmp(str, map_StringForGameControllerType[i]) == 0) {
return (SDL_GameControllerType)i;
}
}
return SDL_CONTROLLER_TYPE_UNKNOWN;
}
static const char *map_StringForControllerAxis[] = {
"leftx",
"lefty",
@ -1095,6 +1139,31 @@ static void SDL_PrivateGameControllerParseControllerConfigString(SDL_GameControl
}
}
static void SDL_UpdateGameControllerType(SDL_GameController *gamecontroller)
{
char *type_string, *comma;
SDL_AssertJoysticksLocked();
gamecontroller->type = SDL_CONTROLLER_TYPE_UNKNOWN;
type_string = SDL_strstr(gamecontroller->mapping->mapping, SDL_CONTROLLER_TYPE_FIELD);
if (type_string) {
type_string += SDL_CONTROLLER_TYPE_FIELD_SIZE;
comma = SDL_strchr(type_string, ',');
if (comma) {
*comma = '\0';
gamecontroller->type = SDL_GetGameControllerTypeFromString(type_string);
*comma = ',';
} else {
gamecontroller->type = SDL_GetGameControllerTypeFromString(type_string);
}
}
if (gamecontroller->type == SDL_CONTROLLER_TYPE_UNKNOWN) {
gamecontroller->type = SDL_GetJoystickGameControllerTypeFromGUID(SDL_JoystickGetGUID(gamecontroller->joystick), SDL_JoystickName(gamecontroller->joystick));
}
}
/*
* Make a new button mapping struct
*/
@ -1113,6 +1182,8 @@ static void SDL_PrivateLoadButtonMapping(SDL_GameController *gamecontroller, Con
SDL_PrivateGameControllerParseControllerConfigString(gamecontroller, pControllerMapping->mapping);
SDL_UpdateGameControllerType(gamecontroller);
/* Set the zero point for triggers */
for (i = 0; i < gamecontroller->num_bindings; ++i) {
SDL_ExtendedGameControllerBind *binding = &gamecontroller->bindings[i];
@ -1976,7 +2047,26 @@ const char *SDL_GameControllerPathForIndex(int joystick_index)
*/
SDL_GameControllerType SDL_GameControllerTypeForIndex(int joystick_index)
{
return SDL_GetJoystickGameControllerTypeFromGUID(SDL_JoystickGetDeviceGUID(joystick_index), SDL_JoystickNameForIndex(joystick_index));
SDL_JoystickGUID joystick_guid = SDL_JoystickGetDeviceGUID(joystick_index);
const char *mapping = SDL_GameControllerMappingForGUID(joystick_guid);
char *type_string, *comma;
SDL_GameControllerType type;
if (mapping) {
type_string = SDL_strstr(mapping, SDL_CONTROLLER_TYPE_FIELD);
if (type_string) {
type_string += SDL_CONTROLLER_TYPE_FIELD_SIZE;
comma = SDL_strchr(type_string, ',');
if (comma) {
*comma = '\0';
type = SDL_GetGameControllerTypeFromString(type_string);
*comma = ',';
} else {
type = SDL_GetGameControllerTypeFromString(type_string);
}
return type;
}
}
return SDL_GetJoystickGameControllerTypeFromGUID(joystick_guid, SDL_JoystickNameForIndex(joystick_index));
}
/**
@ -2675,6 +2765,9 @@ SDL_GameControllerType SDL_GameControllerGetType(SDL_GameController *gamecontrol
if (!joystick) {
return SDL_CONTROLLER_TYPE_UNKNOWN;
}
if (gamecontroller->type != SDL_CONTROLLER_TYPE_UNKNOWN) {
return gamecontroller->type;
}
return SDL_GetJoystickGameControllerTypeFromGUID(SDL_JoystickGetGUID(joystick), SDL_JoystickName(joystick));
}