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Include the child serial numbers in the serial number for a HIDAPI combined device

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This commit is contained in:
Sam Lantinga 2022-08-09 09:00:29 -07:00
parent 523bedac1a
commit d90c0d41cc
1 changed files with 30 additions and 1 deletions
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31
src/joystick/hidapi/SDL_hidapi_combined.c
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@ -27,7 +27,7 @@
#include "SDL_joystick.h" #include "SDL_joystick.h"
#include "SDL_gamecontroller.h" #include "SDL_gamecontroller.h"
#include "SDL_hidapijoystick_c.h" #include "SDL_hidapijoystick_c.h"
#include "../SDL_sysjoystick.h"
static SDL_bool static SDL_bool
HIDAPI_DriverCombined_IsSupportedDevice(const char *name, SDL_GameControllerType type, Uint16 vendor_id, Uint16 product_id, Uint16 version, int interface_number, int interface_class, int interface_subclass, int interface_protocol) HIDAPI_DriverCombined_IsSupportedDevice(const char *name, SDL_GameControllerType type, Uint16 vendor_id, Uint16 product_id, Uint16 version, int interface_number, int interface_class, int interface_subclass, int interface_protocol)
@ -63,6 +63,8 @@ static SDL_bool
HIDAPI_DriverCombined_OpenJoystick(SDL_HIDAPI_Device *device, SDL_Joystick *joystick) HIDAPI_DriverCombined_OpenJoystick(SDL_HIDAPI_Device *device, SDL_Joystick *joystick)
{ {
int i; int i;
char *serial = NULL, *new_serial;
size_t serial_length = 0, new_length;
for (i = 0; i < device->num_children; ++i) { for (i = 0; i < device->num_children; ++i) {
SDL_HIDAPI_Device *child = device->children[i]; SDL_HIDAPI_Device *child = device->children[i];
@ -71,9 +73,36 @@ HIDAPI_DriverCombined_OpenJoystick(SDL_HIDAPI_Device *device, SDL_Joystick *joys
child = device->children[i]; child = device->children[i];
child->driver->CloseJoystick(child, joystick); child->driver->CloseJoystick(child, joystick);
} }
if (serial) {
SDL_free(serial);
}
return SDL_FALSE; return SDL_FALSE;
} }
/* Extend the serial number with the child serial number */
if (joystick->serial) {
new_length = serial_length + 1 + SDL_strlen(joystick->serial);
new_serial = (char *)SDL_realloc(serial, new_length);
if (new_serial) {
if (serial) {
SDL_strlcat(new_serial, ",", new_length);
SDL_strlcat(new_serial, joystick->serial, new_length);
} else {
SDL_strlcpy(new_serial, joystick->serial, new_length);
}
SDL_free(serial);
serial = new_serial;
serial_length = new_length;
}
}
} }
/* Update the joystick with the combined serial numbers */
if (joystick->serial) {
SDL_free(joystick->serial);
}
joystick->serial = serial;
return SDL_TRUE; return SDL_TRUE;
} }