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update sdl Merge commit '644725478f4de0f074a6834e8423ac36dce3974f'

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Green Sky
2023-09-23 18:53:11 +02:00
parent 12e8b5d6c4 644725478f
commit dd316d2589
172 changed files with 7495 additions and 4062 deletions
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289
external/sdl/SDL/src/hidapi/SDL_hidapi.c vendored
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@@ -873,10 +873,47 @@ typedef struct LIBUSB_hid_device_ LIBUSB_hid_device;
#undef read_thread
#undef return_data
/* If the platform has any backend other than libusb, try to avoid using
* libusb as the main backend for devices, since it detaches drivers and
* therefore makes devices inaccessible to the rest of the OS.
*
* We do this by whitelisting devices we know to be accessible _exclusively_
* via libusb; these are typically devices that look like HIDs but have a
* quirk that requires direct access to the hardware.
*/
static const struct {
Uint16 vendor;
Uint16 product;
} SDL_libusb_whitelist[] = {
{ 0x057e, 0x0337 } /* Nintendo WUP-028, Wii U/Switch GameCube Adapter */
};
static SDL_bool IsInWhitelist(Uint16 vendor, Uint16 product)
{
int i;
for (i = 0; i < SDL_arraysize(SDL_libusb_whitelist); i += 1) {
if (vendor == SDL_libusb_whitelist[i].vendor &&
product == SDL_libusb_whitelist[i].product) {
return SDL_TRUE;
}
}
return SDL_FALSE;
}
#endif /* HAVE_LIBUSB */
#endif /* !SDL_HIDAPI_DISABLED */
#if defined(HAVE_PLATFORM_BACKEND) || defined(HAVE_DRIVER_BACKEND)
/* We have another way to get HID devices, so use the whitelist to get devices where libusb is preferred */
#define SDL_HIDAPI_LIBUSB_WHITELIST_DEFAULT SDL_TRUE
#else
/* libusb is the only way to get HID devices, so don't use the whitelist, get them all */
#define SDL_HIDAPI_LIBUSB_WHITELIST_DEFAULT SDL_FALSE
#endif /* HAVE_PLATFORM_BACKEND || HAVE_DRIVER_BACKEND */
static SDL_bool use_libusb_whitelist = SDL_HIDAPI_LIBUSB_WHITELIST_DEFAULT;
/* Shared HIDAPI Implementation */
struct hidapi_backend
@@ -1117,6 +1154,8 @@ int SDL_hid_init(void)
}
#endif
use_libusb_whitelist = SDL_GetHintBoolean("SDL_HIDAPI_LIBUSB_WHITELIST",
SDL_HIDAPI_LIBUSB_WHITELIST_DEFAULT);
#ifdef HAVE_LIBUSB
if (SDL_getenv("SDL_HIDAPI_DISABLE_LIBUSB") != NULL) {
SDL_LogDebug(SDL_LOG_CATEGORY_INPUT,
@@ -1280,144 +1319,170 @@ Uint32 SDL_hid_device_change_count(void)
return counter;
}
static void AddDeviceToEnumeration(const char *driver_name, struct hid_device_info *dev, struct SDL_hid_device_info **devs, struct SDL_hid_device_info **last)
{
struct SDL_hid_device_info *new_dev;
#ifdef DEBUG_HIDAPI
SDL_Log("Adding %s device to enumeration: %ls %ls 0x%.4hx/0x%.4hx/%d",
driver_name, dev->manufacturer_string, dev->product_string, dev->vendor_id, dev->product_id, dev->interface_number);
#else
(void)driver_name;
#endif
new_dev = (struct SDL_hid_device_info *)SDL_malloc(sizeof(struct SDL_hid_device_info));
if (new_dev == NULL) {
/* Don't bother returning an error, get as many devices as possible */
return;
}
CopyHIDDeviceInfo(dev, new_dev);
if ((*last) != NULL) {
(*last)->next = new_dev;
} else {
*devs = new_dev;
}
*last = new_dev;
}
#if defined(HAVE_LIBUSB) || defined(HAVE_PLATFORM_BACKEND)
static void RemoveDeviceFromEnumeration(const char *driver_name, struct hid_device_info *dev, struct hid_device_info **devs, void (*free_device_info)(struct hid_device_info *))
{
struct hid_device_info *last = NULL, *curr, *next;
for (curr = *devs; curr; curr = next) {
next = curr->next;
if (dev->vendor_id == curr->vendor_id &&
dev->product_id == curr->product_id &&
(dev->interface_number < 0 || curr->interface_number < 0 || dev->interface_number == curr->interface_number)) {
#ifdef DEBUG_HIDAPI
SDL_Log("Skipping %s device: %ls %ls 0x%.4hx/0x%.4hx/%d",
driver_name, curr->manufacturer_string, curr->product_string, curr->vendor_id, curr->product_id, curr->interface_number);
#else
(void)driver_name;
#endif
if (last) {
last->next = next;
} else {
*devs = next;
}
curr->next = NULL;
free_device_info(curr);
continue;
}
last = curr;
}
}
#endif /* HAVE_LIBUSB || HAVE_PLATFORM_BACKEND */
#ifdef HAVE_LIBUSB
static void RemoveNonWhitelistedDevicesFromEnumeration(struct hid_device_info **devs, void (*free_device_info)(struct hid_device_info *))
{
struct hid_device_info *last = NULL, *curr, *next;
for (curr = *devs; curr; curr = next) {
next = curr->next;
if (!IsInWhitelist(curr->vendor_id, curr->product_id)) {
#ifdef DEBUG_HIDAPI
SDL_Log("Device was not in libusb whitelist, skipping: %ls %ls 0x%.4hx/0x%.4hx/%d",
curr->manufacturer_string, curr->product_string, curr->vendor_id, curr->product_id, curr->interface_number);
#endif
if (last) {
last->next = next;
} else {
*devs = next;
}
curr->next = NULL;
free_device_info(curr);
continue;
}
last = curr;
}
}
#endif /* HAVE_LIBUSB */
struct SDL_hid_device_info *SDL_hid_enumerate(unsigned short vendor_id, unsigned short product_id)
{
#if defined(HAVE_PLATFORM_BACKEND) || defined(HAVE_DRIVER_BACKEND) || defined(HAVE_LIBUSB)
#ifdef HAVE_LIBUSB
struct hid_device_info *usb_devs = NULL;
struct hid_device_info *usb_dev;
#endif
#ifdef HAVE_DRIVER_BACKEND
struct hid_device_info *driver_devs = NULL;
struct hid_device_info *driver_dev;
#endif
#ifdef HAVE_PLATFORM_BACKEND
struct hid_device_info *usb_devs = NULL;
struct hid_device_info *raw_devs = NULL;
struct hid_device_info *raw_dev;
#endif
struct SDL_hid_device_info *devs = NULL, *last = NULL, *new_dev;
struct hid_device_info *dev;
struct SDL_hid_device_info *devs = NULL, *last = NULL;
if (SDL_hidapi_refcount == 0 && SDL_hid_init() != 0) {
return NULL;
}
/* Collect the available devices */
#ifdef HAVE_DRIVER_BACKEND
driver_devs = DRIVER_hid_enumerate(vendor_id, product_id);
#endif
#ifdef HAVE_LIBUSB
if (libusb_ctx.libhandle) {
usb_devs = LIBUSB_hid_enumerate(vendor_id, product_id);
#ifdef DEBUG_HIDAPI
SDL_Log("libusb devices found:");
#endif
for (usb_dev = usb_devs; usb_dev; usb_dev = usb_dev->next) {
new_dev = (struct SDL_hid_device_info *)SDL_malloc(sizeof(struct SDL_hid_device_info));
if (new_dev == NULL) {
LIBUSB_hid_free_enumeration(usb_devs);
SDL_hid_free_enumeration(devs);
SDL_OutOfMemory();
return NULL;
}
CopyHIDDeviceInfo(usb_dev, new_dev);
#ifdef DEBUG_HIDAPI
SDL_Log(" - %ls %ls 0x%.4hx 0x%.4hx",
usb_dev->manufacturer_string, usb_dev->product_string,
usb_dev->vendor_id, usb_dev->product_id);
#endif
if (last != NULL) {
last->next = new_dev;
} else {
devs = new_dev;
}
last = new_dev;
if (use_libusb_whitelist) {
RemoveNonWhitelistedDevicesFromEnumeration(&usb_devs, LIBUSB_hid_free_enumeration);
}
}
#endif /* HAVE_LIBUSB */
#ifdef HAVE_DRIVER_BACKEND
driver_devs = DRIVER_hid_enumerate(vendor_id, product_id);
for (driver_dev = driver_devs; driver_dev; driver_dev = driver_dev->next) {
new_dev = (struct SDL_hid_device_info *)SDL_malloc(sizeof(struct SDL_hid_device_info));
CopyHIDDeviceInfo(driver_dev, new_dev);
if (last != NULL) {
last->next = new_dev;
} else {
devs = new_dev;
}
last = new_dev;
}
#endif /* HAVE_DRIVER_BACKEND */
#ifdef HAVE_PLATFORM_BACKEND
if (udev_ctx) {
raw_devs = PLATFORM_hid_enumerate(vendor_id, product_id);
#ifdef DEBUG_HIDAPI
SDL_Log("hidraw devices found:");
}
#endif
for (raw_dev = raw_devs; raw_dev; raw_dev = raw_dev->next) {
SDL_bool bFound = SDL_FALSE;
#ifdef DEBUG_HIDAPI
SDL_Log(" - %ls %ls 0x%.4hx 0x%.4hx",
raw_dev->manufacturer_string, raw_dev->product_string,
raw_dev->vendor_id, raw_dev->product_id);
#endif
#ifdef HAVE_LIBUSB
for (usb_dev = usb_devs; usb_dev; usb_dev = usb_dev->next) {
if (raw_dev->vendor_id == usb_dev->vendor_id &&
raw_dev->product_id == usb_dev->product_id &&
(raw_dev->interface_number < 0 || raw_dev->interface_number == usb_dev->interface_number)) {
bFound = SDL_TRUE;
break;
}
}
#endif
#ifdef HAVE_DRIVER_BACKEND
for (driver_dev = driver_devs; driver_dev; driver_dev = driver_dev->next) {
if (raw_dev->vendor_id == driver_dev->vendor_id &&
raw_dev->product_id == driver_dev->product_id &&
(raw_dev->interface_number < 0 || raw_dev->interface_number == driver_dev->interface_number)) {
bFound = SDL_TRUE;
break;
}
}
#endif
if (!bFound) {
new_dev = (struct SDL_hid_device_info *)SDL_malloc(sizeof(struct SDL_hid_device_info));
if (new_dev == NULL) {
#ifdef HAVE_LIBUSB
if (libusb_ctx.libhandle) {
LIBUSB_hid_free_enumeration(usb_devs);
}
#endif
PLATFORM_hid_free_enumeration(raw_devs);
SDL_hid_free_enumeration(devs);
SDL_OutOfMemory();
return NULL;
}
CopyHIDDeviceInfo(raw_dev, new_dev);
new_dev->next = NULL;
if (last != NULL) {
last->next = new_dev;
} else {
devs = new_dev;
}
last = new_dev;
}
/* Highest priority are custom driver devices */
for (dev = driver_devs; dev; dev = dev->next) {
AddDeviceToEnumeration("driver", dev, &devs, &last);
#ifdef HAVE_LIBUSB
RemoveDeviceFromEnumeration("libusb", dev, &usb_devs, LIBUSB_hid_free_enumeration);
#endif
#ifdef HAVE_PLATFORM_BACKEND
RemoveDeviceFromEnumeration("raw", dev, &raw_devs, PLATFORM_hid_free_enumeration);
#endif
}
/* If whitelist is in effect, libusb has priority, otherwise raw devices do */
if (use_libusb_whitelist) {
for (dev = usb_devs; dev; dev = dev->next) {
AddDeviceToEnumeration("libusb", dev, &devs, &last);
#ifdef HAVE_PLATFORM_BACKEND
RemoveDeviceFromEnumeration("raw", dev, &raw_devs, PLATFORM_hid_free_enumeration);
#endif
}
PLATFORM_hid_free_enumeration(raw_devs);
}
#endif /* HAVE_PLATFORM_BACKEND */
for (dev = raw_devs; dev; dev = dev->next) {
AddDeviceToEnumeration("platform", dev, &devs, &last);
}
} else {
for (dev = raw_devs; dev; dev = dev->next) {
AddDeviceToEnumeration("raw", dev, &devs, &last);
#ifdef HAVE_LIBUSB
if (libusb_ctx.libhandle) {
LIBUSB_hid_free_enumeration(usb_devs);
}
RemoveDeviceFromEnumeration("libusb", dev, &usb_devs, LIBUSB_hid_free_enumeration);
#endif
return devs;
}
for (dev = usb_devs; dev; dev = dev->next) {
AddDeviceToEnumeration("libusb", dev, &devs, &last);
}
}
#else
return NULL;
#endif /* HAVE_PLATFORM_BACKEND || HAVE_DRIVER_BACKEND || HAVE_LIBUSB */
#ifdef HAVE_DRIVER_BACKEND
DRIVER_hid_free_enumeration(driver_devs);
#endif
#ifdef HAVE_LIBUSB
LIBUSB_hid_free_enumeration(usb_devs);
#endif
#ifdef HAVE_PLATFORM_BACKEND
PLATFORM_hid_free_enumeration(raw_devs);
#endif
return devs;
}
void SDL_hid_free_enumeration(struct SDL_hid_device_info *devs)