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Re-added the CRC to the joystick guid

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This is now used as a crc field in the mapping rather than directly in mapping guids, for better mapping compatibility between versions of SDL.

Added SDL_GetJoystickGUIDInfo() to get device information encoded in a joystick GUID, so that mapping programs can clear the CRC from the GUID when generating mappings.

sort_controllers.py has been updated to extract the CRC from mappings created by older mapping programs and convert it into the new crc field. It will also take the CRC into account when checking for duplicate mappings.

Also regenerated the GUIDs for the PS2/PSP/Vita controller mappings, fixing https://github.com/libsdl-org/SDL/issues/6151
This commit is contained in:
Sam Lantinga 2022-08-27 18:55:55 -07:00
parent b9e3cae572
commit 3cbfd75d0f
11 changed files with 139 additions and 38 deletions
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15
include/SDL_joystick.h
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@ -647,6 +647,21 @@ extern DECLSPEC void SDLCALL SDL_JoystickGetGUIDString(SDL_JoystickGUID guid, ch
*/
extern DECLSPEC SDL_JoystickGUID SDLCALL SDL_JoystickGetGUIDFromString(const char *pchGUID);
/**
* Get the device information encoded in a SDL_JoystickGUID structure
*
* \param guid the SDL_JoystickGUID you wish to get info about
* \param vendor A pointer filled in with the device VID, or 0 if not available
* \param product A pointer filled in with the device PID, or 0 if not available
* \param version A pointer filled in with the device version, or 0 if not available
* \param crc A pointer filled in with a CRC used to distinguish different products with the same VID/PID, or 0 if not available
*
* \since This function is available since SDL 2.26.0.
*
* \sa SDL_JoystickGetDeviceGUID
*/
extern DECLSPEC void SDLCALL SDL_GetJoystickGUIDInfo(SDL_JoystickGUID guid, Uint16 *vendor, Uint16 *product, Uint16 *version, Uint16 *crc16);
/**
* Get the status of a specified joystick.
*