mirror of
https://github.com/Relintai/sdl2_frt.git
synced 2024-12-20 22:16:49 +01:00
8e062f6925
This happens with at least the following controllers: All Apple MFI controllers, ASUS Gamepad, XiaoMi Bluetooth Controller
1298 lines
34 KiB
C
1298 lines
34 KiB
C
/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "../SDL_internal.h"
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/* This is the joystick API for Simple DirectMedia Layer */
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#include "SDL.h"
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#include "SDL_events.h"
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#include "SDL_sysjoystick.h"
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#include "SDL_assert.h"
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#include "SDL_hints.h"
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#if !SDL_EVENTS_DISABLED
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#include "../events/SDL_events_c.h"
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#endif
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#include "../video/SDL_sysvideo.h"
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static SDL_bool SDL_joystick_allows_background_events = SDL_FALSE;
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static SDL_Joystick *SDL_joysticks = NULL;
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static SDL_bool SDL_updating_joystick = SDL_FALSE;
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static SDL_mutex *SDL_joystick_lock = NULL; /* This needs to support recursive locks */
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void
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SDL_LockJoysticks(void)
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{
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if (SDL_joystick_lock) {
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SDL_LockMutex(SDL_joystick_lock);
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}
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}
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void
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SDL_UnlockJoysticks(void)
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{
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if (SDL_joystick_lock) {
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SDL_UnlockMutex(SDL_joystick_lock);
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}
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}
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static void SDLCALL
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SDL_JoystickAllowBackgroundEventsChanged(void *userdata, const char *name, const char *oldValue, const char *hint)
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{
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if (hint && *hint == '1') {
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SDL_joystick_allows_background_events = SDL_TRUE;
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} else {
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SDL_joystick_allows_background_events = SDL_FALSE;
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}
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}
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int
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SDL_JoystickInit(void)
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{
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int status;
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SDL_GameControllerInitMappings();
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/* Create the joystick list lock */
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if (!SDL_joystick_lock) {
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SDL_joystick_lock = SDL_CreateMutex();
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}
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/* See if we should allow joystick events while in the background */
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SDL_AddHintCallback(SDL_HINT_JOYSTICK_ALLOW_BACKGROUND_EVENTS,
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SDL_JoystickAllowBackgroundEventsChanged, NULL);
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#if !SDL_EVENTS_DISABLED
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if (SDL_InitSubSystem(SDL_INIT_EVENTS) < 0) {
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return -1;
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}
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#endif /* !SDL_EVENTS_DISABLED */
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status = SDL_SYS_JoystickInit();
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if (status >= 0) {
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status = 0;
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}
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return (status);
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}
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/*
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* Count the number of joysticks attached to the system
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*/
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int
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SDL_NumJoysticks(void)
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{
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return SDL_SYS_NumJoysticks();
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}
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/*
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* Perform any needed fixups for joystick names
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*/
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static const char *
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SDL_FixupJoystickName(const char *name)
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{
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if (name) {
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const char *skip_prefix = "NVIDIA Corporation ";
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if (SDL_strncmp(name, skip_prefix, SDL_strlen(skip_prefix)) == 0) {
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name += SDL_strlen(skip_prefix);
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}
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}
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return name;
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}
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/*
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* Get the implementation dependent name of a joystick
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*/
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const char *
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SDL_JoystickNameForIndex(int device_index)
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{
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if (device_index < 0 || device_index >= SDL_NumJoysticks()) {
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SDL_SetError("There are %d joysticks available", SDL_NumJoysticks());
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return (NULL);
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}
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return SDL_FixupJoystickName(SDL_SYS_JoystickNameForDeviceIndex(device_index));
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}
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/*
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* Return true if this joystick is known to have all axes centered at zero
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* This isn't generally needed unless the joystick never generates an initial axis value near zero,
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* e.g. it's emulating axes with digital buttons
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*/
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static SDL_bool
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SDL_JoystickAxesCenteredAtZero(SDL_Joystick *joystick)
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{
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static Uint32 zero_centered_joysticks[] = {
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MAKE_VIDPID(0x0e8f, 0x3013), /* HuiJia SNES USB adapter */
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MAKE_VIDPID(0x05a0, 0x3232), /* 8Bitdo Zero Gamepad */
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};
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int i;
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Uint32 id = MAKE_VIDPID(SDL_JoystickGetVendor(joystick),
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SDL_JoystickGetProduct(joystick));
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/*printf("JOYSTICK '%s' VID/PID 0x%.4x/0x%.4x AXES: %d\n", joystick->name, vendor, product, joystick->naxes);*/
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if (joystick->naxes == 2) {
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/* Assume D-pad or thumbstick style axes are centered at 0 */
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return SDL_TRUE;
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}
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for (i = 0; i < SDL_arraysize(zero_centered_joysticks); ++i) {
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if (id == zero_centered_joysticks[i]) {
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return SDL_TRUE;
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}
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}
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return SDL_FALSE;
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}
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/*
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* Open a joystick for use - the index passed as an argument refers to
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* the N'th joystick on the system. This index is the value which will
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* identify this joystick in future joystick events.
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*
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* This function returns a joystick identifier, or NULL if an error occurred.
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*/
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SDL_Joystick *
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SDL_JoystickOpen(int device_index)
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{
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SDL_Joystick *joystick;
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SDL_Joystick *joysticklist;
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const char *joystickname = NULL;
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if ((device_index < 0) || (device_index >= SDL_NumJoysticks())) {
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SDL_SetError("There are %d joysticks available", SDL_NumJoysticks());
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return (NULL);
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}
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SDL_LockJoysticks();
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joysticklist = SDL_joysticks;
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/* If the joystick is already open, return it
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* it is important that we have a single joystick * for each instance id
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*/
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while (joysticklist) {
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if (SDL_JoystickGetDeviceInstanceID(device_index) == joysticklist->instance_id) {
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joystick = joysticklist;
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++joystick->ref_count;
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SDL_UnlockJoysticks();
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return (joystick);
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}
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joysticklist = joysticklist->next;
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}
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/* Create and initialize the joystick */
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joystick = (SDL_Joystick *) SDL_calloc(sizeof(*joystick), 1);
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if (joystick == NULL) {
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SDL_OutOfMemory();
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SDL_UnlockJoysticks();
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return NULL;
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}
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if (SDL_SYS_JoystickOpen(joystick, device_index) < 0) {
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SDL_free(joystick);
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SDL_UnlockJoysticks();
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return NULL;
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}
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joystickname = SDL_SYS_JoystickNameForDeviceIndex(device_index);
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if (joystickname)
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joystick->name = SDL_strdup(joystickname);
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else
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joystick->name = NULL;
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if (joystick->naxes > 0) {
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joystick->axes = (SDL_JoystickAxisInfo *) SDL_calloc(joystick->naxes, sizeof(SDL_JoystickAxisInfo));
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}
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if (joystick->nhats > 0) {
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joystick->hats = (Uint8 *) SDL_calloc(joystick->nhats, sizeof(Uint8));
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}
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if (joystick->nballs > 0) {
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joystick->balls = (struct balldelta *) SDL_calloc(joystick->nballs, sizeof(*joystick->balls));
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}
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if (joystick->nbuttons > 0) {
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joystick->buttons = (Uint8 *) SDL_calloc(joystick->nbuttons, sizeof(Uint8));
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}
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if (((joystick->naxes > 0) && !joystick->axes)
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|| ((joystick->nhats > 0) && !joystick->hats)
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|| ((joystick->nballs > 0) && !joystick->balls)
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|| ((joystick->nbuttons > 0) && !joystick->buttons)) {
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SDL_OutOfMemory();
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SDL_JoystickClose(joystick);
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SDL_UnlockJoysticks();
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return NULL;
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}
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joystick->epowerlevel = SDL_JOYSTICK_POWER_UNKNOWN;
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/* If this joystick is known to have all zero centered axes, skip the auto-centering code */
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if (SDL_JoystickAxesCenteredAtZero(joystick)) {
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int i;
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for (i = 0; i < joystick->naxes; ++i) {
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joystick->axes[i].has_initial_value = SDL_TRUE;
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}
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}
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joystick->is_game_controller = SDL_IsGameController(device_index);
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/* Add joystick to list */
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++joystick->ref_count;
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/* Link the joystick in the list */
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joystick->next = SDL_joysticks;
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SDL_joysticks = joystick;
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SDL_UnlockJoysticks();
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SDL_SYS_JoystickUpdate(joystick);
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return (joystick);
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}
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/*
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* Checks to make sure the joystick is valid.
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*/
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int
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SDL_PrivateJoystickValid(SDL_Joystick * joystick)
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{
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int valid;
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if (joystick == NULL) {
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SDL_SetError("Joystick hasn't been opened yet");
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valid = 0;
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} else {
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valid = 1;
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}
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return valid;
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}
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/*
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* Get the number of multi-dimensional axis controls on a joystick
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*/
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int
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SDL_JoystickNumAxes(SDL_Joystick * joystick)
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{
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if (!SDL_PrivateJoystickValid(joystick)) {
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return (-1);
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}
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return (joystick->naxes);
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}
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/*
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* Get the number of hats on a joystick
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*/
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int
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SDL_JoystickNumHats(SDL_Joystick * joystick)
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{
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if (!SDL_PrivateJoystickValid(joystick)) {
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return (-1);
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}
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return (joystick->nhats);
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}
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/*
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* Get the number of trackballs on a joystick
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*/
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int
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SDL_JoystickNumBalls(SDL_Joystick * joystick)
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{
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if (!SDL_PrivateJoystickValid(joystick)) {
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return (-1);
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}
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return (joystick->nballs);
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}
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/*
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* Get the number of buttons on a joystick
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*/
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int
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SDL_JoystickNumButtons(SDL_Joystick * joystick)
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{
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if (!SDL_PrivateJoystickValid(joystick)) {
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return (-1);
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}
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return (joystick->nbuttons);
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}
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/*
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* Get the current state of an axis control on a joystick
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*/
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Sint16
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SDL_JoystickGetAxis(SDL_Joystick * joystick, int axis)
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{
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Sint16 state;
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if (!SDL_PrivateJoystickValid(joystick)) {
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return (0);
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}
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if (axis < joystick->naxes) {
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state = joystick->axes[axis].value;
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} else {
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SDL_SetError("Joystick only has %d axes", joystick->naxes);
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state = 0;
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}
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return (state);
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}
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/*
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* Get the initial state of an axis control on a joystick
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*/
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SDL_bool
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SDL_JoystickGetAxisInitialState(SDL_Joystick * joystick, int axis, Sint16 *state)
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{
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if (!SDL_PrivateJoystickValid(joystick)) {
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return SDL_FALSE;
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}
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if (axis >= joystick->naxes) {
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SDL_SetError("Joystick only has %d axes", joystick->naxes);
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return SDL_FALSE;
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}
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if (state) {
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*state = joystick->axes[axis].initial_value;
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}
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return joystick->axes[axis].has_initial_value;
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}
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/*
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* Get the current state of a hat on a joystick
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*/
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Uint8
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SDL_JoystickGetHat(SDL_Joystick * joystick, int hat)
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{
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Uint8 state;
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if (!SDL_PrivateJoystickValid(joystick)) {
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return (0);
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}
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if (hat < joystick->nhats) {
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state = joystick->hats[hat];
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} else {
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SDL_SetError("Joystick only has %d hats", joystick->nhats);
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state = 0;
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}
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return (state);
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}
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/*
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* Get the ball axis change since the last poll
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*/
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int
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SDL_JoystickGetBall(SDL_Joystick * joystick, int ball, int *dx, int *dy)
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{
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int retval;
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if (!SDL_PrivateJoystickValid(joystick)) {
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return (-1);
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}
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retval = 0;
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if (ball < joystick->nballs) {
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if (dx) {
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*dx = joystick->balls[ball].dx;
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}
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if (dy) {
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*dy = joystick->balls[ball].dy;
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}
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joystick->balls[ball].dx = 0;
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joystick->balls[ball].dy = 0;
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} else {
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return SDL_SetError("Joystick only has %d balls", joystick->nballs);
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}
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return (retval);
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}
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/*
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* Get the current state of a button on a joystick
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*/
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Uint8
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SDL_JoystickGetButton(SDL_Joystick * joystick, int button)
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{
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Uint8 state;
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if (!SDL_PrivateJoystickValid(joystick)) {
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return (0);
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}
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if (button < joystick->nbuttons) {
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state = joystick->buttons[button];
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} else {
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SDL_SetError("Joystick only has %d buttons", joystick->nbuttons);
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state = 0;
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}
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return (state);
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}
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/*
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* Return if the joystick in question is currently attached to the system,
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* \return SDL_FALSE if not plugged in, SDL_TRUE if still present.
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*/
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SDL_bool
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SDL_JoystickGetAttached(SDL_Joystick * joystick)
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{
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if (!SDL_PrivateJoystickValid(joystick)) {
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return SDL_FALSE;
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}
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return SDL_SYS_JoystickAttached(joystick);
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}
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/*
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* Get the instance id for this opened joystick
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*/
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SDL_JoystickID
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SDL_JoystickInstanceID(SDL_Joystick * joystick)
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{
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if (!SDL_PrivateJoystickValid(joystick)) {
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return (-1);
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}
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return (joystick->instance_id);
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}
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/*
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* Find the SDL_Joystick that owns this instance id
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*/
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SDL_Joystick *
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SDL_JoystickFromInstanceID(SDL_JoystickID joyid)
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{
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SDL_Joystick *joystick;
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SDL_LockJoysticks();
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for (joystick = SDL_joysticks; joystick; joystick = joystick->next) {
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if (joystick->instance_id == joyid) {
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SDL_UnlockJoysticks();
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return joystick;
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}
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}
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SDL_UnlockJoysticks();
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return NULL;
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}
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/*
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* Get the friendly name of this joystick
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*/
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const char *
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SDL_JoystickName(SDL_Joystick * joystick)
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{
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if (!SDL_PrivateJoystickValid(joystick)) {
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return (NULL);
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}
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return SDL_FixupJoystickName(joystick->name);
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}
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/*
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* Close a joystick previously opened with SDL_JoystickOpen()
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*/
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void
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SDL_JoystickClose(SDL_Joystick * joystick)
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{
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SDL_Joystick *joysticklist;
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SDL_Joystick *joysticklistprev;
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if (!joystick) {
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return;
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}
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SDL_LockJoysticks();
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/* First decrement ref count */
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if (--joystick->ref_count > 0) {
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SDL_UnlockJoysticks();
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return;
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}
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if (SDL_updating_joystick) {
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SDL_UnlockJoysticks();
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return;
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}
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SDL_SYS_JoystickClose(joystick);
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joystick->hwdata = NULL;
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joysticklist = SDL_joysticks;
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joysticklistprev = NULL;
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while (joysticklist) {
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if (joystick == joysticklist) {
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if (joysticklistprev) {
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/* unlink this entry */
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joysticklistprev->next = joysticklist->next;
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} else {
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SDL_joysticks = joystick->next;
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}
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break;
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}
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joysticklistprev = joysticklist;
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joysticklist = joysticklist->next;
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}
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SDL_free(joystick->name);
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/* Free the data associated with this joystick */
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SDL_free(joystick->axes);
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SDL_free(joystick->hats);
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SDL_free(joystick->balls);
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SDL_free(joystick->buttons);
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SDL_free(joystick);
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SDL_UnlockJoysticks();
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}
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void
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SDL_JoystickQuit(void)
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{
|
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/* Make sure we're not getting called in the middle of updating joysticks */
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SDL_assert(!SDL_updating_joystick);
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|
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SDL_LockJoysticks();
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|
|
|
/* Stop the event polling */
|
|
while (SDL_joysticks) {
|
|
SDL_joysticks->ref_count = 1;
|
|
SDL_JoystickClose(SDL_joysticks);
|
|
}
|
|
|
|
/* Quit the joystick setup */
|
|
SDL_SYS_JoystickQuit();
|
|
|
|
SDL_UnlockJoysticks();
|
|
|
|
#if !SDL_EVENTS_DISABLED
|
|
SDL_QuitSubSystem(SDL_INIT_EVENTS);
|
|
#endif
|
|
|
|
SDL_DelHintCallback(SDL_HINT_JOYSTICK_ALLOW_BACKGROUND_EVENTS,
|
|
SDL_JoystickAllowBackgroundEventsChanged, NULL);
|
|
|
|
if (SDL_joystick_lock) {
|
|
SDL_DestroyMutex(SDL_joystick_lock);
|
|
SDL_joystick_lock = NULL;
|
|
}
|
|
|
|
SDL_GameControllerQuitMappings();
|
|
}
|
|
|
|
|
|
static SDL_bool
|
|
SDL_PrivateJoystickShouldIgnoreEvent()
|
|
{
|
|
if (SDL_joystick_allows_background_events) {
|
|
return SDL_FALSE;
|
|
}
|
|
|
|
if (SDL_HasWindows() && SDL_GetKeyboardFocus() == NULL) {
|
|
/* We have windows but we don't have focus, ignore the event. */
|
|
return SDL_TRUE;
|
|
}
|
|
return SDL_FALSE;
|
|
}
|
|
|
|
/* These are global for SDL_sysjoystick.c and SDL_events.c */
|
|
|
|
void SDL_PrivateJoystickAdded(int device_index)
|
|
{
|
|
#if !SDL_EVENTS_DISABLED
|
|
SDL_Event event;
|
|
|
|
event.type = SDL_JOYDEVICEADDED;
|
|
|
|
if (SDL_GetEventState(event.type) == SDL_ENABLE) {
|
|
event.jdevice.which = device_index;
|
|
SDL_PushEvent(&event);
|
|
}
|
|
#endif /* !SDL_EVENTS_DISABLED */
|
|
}
|
|
|
|
/*
|
|
* If there is an existing add event in the queue, it needs to be modified
|
|
* to have the right value for which, because the number of controllers in
|
|
* the system is now one less.
|
|
*/
|
|
static void UpdateEventsForDeviceRemoval()
|
|
{
|
|
int i, num_events;
|
|
SDL_Event *events;
|
|
|
|
num_events = SDL_PeepEvents(NULL, 0, SDL_PEEKEVENT, SDL_JOYDEVICEADDED, SDL_JOYDEVICEADDED);
|
|
if (num_events <= 0) {
|
|
return;
|
|
}
|
|
|
|
events = SDL_stack_alloc(SDL_Event, num_events);
|
|
if (!events) {
|
|
return;
|
|
}
|
|
|
|
num_events = SDL_PeepEvents(events, num_events, SDL_GETEVENT, SDL_JOYDEVICEADDED, SDL_JOYDEVICEADDED);
|
|
for (i = 0; i < num_events; ++i) {
|
|
--events[i].jdevice.which;
|
|
}
|
|
SDL_PeepEvents(events, num_events, SDL_ADDEVENT, 0, 0);
|
|
|
|
SDL_stack_free(events);
|
|
}
|
|
|
|
void SDL_PrivateJoystickRemoved(SDL_JoystickID device_instance)
|
|
{
|
|
#if !SDL_EVENTS_DISABLED
|
|
SDL_Event event;
|
|
|
|
event.type = SDL_JOYDEVICEREMOVED;
|
|
|
|
if (SDL_GetEventState(event.type) == SDL_ENABLE) {
|
|
event.jdevice.which = device_instance;
|
|
SDL_PushEvent(&event);
|
|
}
|
|
|
|
UpdateEventsForDeviceRemoval();
|
|
#endif /* !SDL_EVENTS_DISABLED */
|
|
}
|
|
|
|
int
|
|
SDL_PrivateJoystickAxis(SDL_Joystick * joystick, Uint8 axis, Sint16 value)
|
|
{
|
|
int posted;
|
|
|
|
/* Make sure we're not getting garbage or duplicate events */
|
|
if (axis >= joystick->naxes) {
|
|
return 0;
|
|
}
|
|
if (!joystick->axes[axis].has_initial_value) {
|
|
joystick->axes[axis].initial_value = value;
|
|
joystick->axes[axis].value = value;
|
|
joystick->axes[axis].zero = value;
|
|
joystick->axes[axis].has_initial_value = SDL_TRUE;
|
|
}
|
|
if (value == joystick->axes[axis].value) {
|
|
return 0;
|
|
}
|
|
if (!joystick->axes[axis].sent_initial_value) {
|
|
/* Make sure we don't send motion until there's real activity on this axis */
|
|
const int MAX_ALLOWED_JITTER = SDL_JOYSTICK_AXIS_MAX / 80; /* ShanWan PS3 controller needed 96 */
|
|
if (SDL_abs(value - joystick->axes[axis].value) <= MAX_ALLOWED_JITTER) {
|
|
return 0;
|
|
}
|
|
joystick->axes[axis].sent_initial_value = SDL_TRUE;
|
|
joystick->axes[axis].value = value; /* Just so we pass the check above */
|
|
SDL_PrivateJoystickAxis(joystick, axis, joystick->axes[axis].initial_value);
|
|
}
|
|
|
|
/* We ignore events if we don't have keyboard focus, except for centering
|
|
* events.
|
|
*/
|
|
if (SDL_PrivateJoystickShouldIgnoreEvent()) {
|
|
if ((value > joystick->axes[axis].zero && value >= joystick->axes[axis].value) ||
|
|
(value < joystick->axes[axis].zero && value <= joystick->axes[axis].value)) {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/* Update internal joystick state */
|
|
joystick->axes[axis].value = value;
|
|
|
|
/* Post the event, if desired */
|
|
posted = 0;
|
|
#if !SDL_EVENTS_DISABLED
|
|
if (SDL_GetEventState(SDL_JOYAXISMOTION) == SDL_ENABLE) {
|
|
SDL_Event event;
|
|
event.type = SDL_JOYAXISMOTION;
|
|
event.jaxis.which = joystick->instance_id;
|
|
event.jaxis.axis = axis;
|
|
event.jaxis.value = value;
|
|
posted = SDL_PushEvent(&event) == 1;
|
|
}
|
|
#endif /* !SDL_EVENTS_DISABLED */
|
|
return (posted);
|
|
}
|
|
|
|
int
|
|
SDL_PrivateJoystickHat(SDL_Joystick * joystick, Uint8 hat, Uint8 value)
|
|
{
|
|
int posted;
|
|
|
|
/* Make sure we're not getting garbage or duplicate events */
|
|
if (hat >= joystick->nhats) {
|
|
return 0;
|
|
}
|
|
if (value == joystick->hats[hat]) {
|
|
return 0;
|
|
}
|
|
|
|
/* We ignore events if we don't have keyboard focus, except for centering
|
|
* events.
|
|
*/
|
|
if (SDL_PrivateJoystickShouldIgnoreEvent()) {
|
|
if (value != SDL_HAT_CENTERED) {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/* Update internal joystick state */
|
|
joystick->hats[hat] = value;
|
|
|
|
/* Post the event, if desired */
|
|
posted = 0;
|
|
#if !SDL_EVENTS_DISABLED
|
|
if (SDL_GetEventState(SDL_JOYHATMOTION) == SDL_ENABLE) {
|
|
SDL_Event event;
|
|
event.jhat.type = SDL_JOYHATMOTION;
|
|
event.jhat.which = joystick->instance_id;
|
|
event.jhat.hat = hat;
|
|
event.jhat.value = value;
|
|
posted = SDL_PushEvent(&event) == 1;
|
|
}
|
|
#endif /* !SDL_EVENTS_DISABLED */
|
|
return (posted);
|
|
}
|
|
|
|
int
|
|
SDL_PrivateJoystickBall(SDL_Joystick * joystick, Uint8 ball,
|
|
Sint16 xrel, Sint16 yrel)
|
|
{
|
|
int posted;
|
|
|
|
/* Make sure we're not getting garbage events */
|
|
if (ball >= joystick->nballs) {
|
|
return 0;
|
|
}
|
|
|
|
/* We ignore events if we don't have keyboard focus. */
|
|
if (SDL_PrivateJoystickShouldIgnoreEvent()) {
|
|
return 0;
|
|
}
|
|
|
|
/* Update internal mouse state */
|
|
joystick->balls[ball].dx += xrel;
|
|
joystick->balls[ball].dy += yrel;
|
|
|
|
/* Post the event, if desired */
|
|
posted = 0;
|
|
#if !SDL_EVENTS_DISABLED
|
|
if (SDL_GetEventState(SDL_JOYBALLMOTION) == SDL_ENABLE) {
|
|
SDL_Event event;
|
|
event.jball.type = SDL_JOYBALLMOTION;
|
|
event.jball.which = joystick->instance_id;
|
|
event.jball.ball = ball;
|
|
event.jball.xrel = xrel;
|
|
event.jball.yrel = yrel;
|
|
posted = SDL_PushEvent(&event) == 1;
|
|
}
|
|
#endif /* !SDL_EVENTS_DISABLED */
|
|
return (posted);
|
|
}
|
|
|
|
int
|
|
SDL_PrivateJoystickButton(SDL_Joystick * joystick, Uint8 button, Uint8 state)
|
|
{
|
|
int posted;
|
|
#if !SDL_EVENTS_DISABLED
|
|
SDL_Event event;
|
|
|
|
switch (state) {
|
|
case SDL_PRESSED:
|
|
event.type = SDL_JOYBUTTONDOWN;
|
|
break;
|
|
case SDL_RELEASED:
|
|
event.type = SDL_JOYBUTTONUP;
|
|
break;
|
|
default:
|
|
/* Invalid state -- bail */
|
|
return (0);
|
|
}
|
|
#endif /* !SDL_EVENTS_DISABLED */
|
|
|
|
/* Make sure we're not getting garbage or duplicate events */
|
|
if (button >= joystick->nbuttons) {
|
|
return 0;
|
|
}
|
|
if (state == joystick->buttons[button]) {
|
|
return 0;
|
|
}
|
|
|
|
/* We ignore events if we don't have keyboard focus, except for button
|
|
* release. */
|
|
if (SDL_PrivateJoystickShouldIgnoreEvent()) {
|
|
if (state == SDL_PRESSED) {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/* Update internal joystick state */
|
|
joystick->buttons[button] = state;
|
|
|
|
/* Post the event, if desired */
|
|
posted = 0;
|
|
#if !SDL_EVENTS_DISABLED
|
|
if (SDL_GetEventState(event.type) == SDL_ENABLE) {
|
|
event.jbutton.which = joystick->instance_id;
|
|
event.jbutton.button = button;
|
|
event.jbutton.state = state;
|
|
posted = SDL_PushEvent(&event) == 1;
|
|
}
|
|
#endif /* !SDL_EVENTS_DISABLED */
|
|
return (posted);
|
|
}
|
|
|
|
void
|
|
SDL_JoystickUpdate(void)
|
|
{
|
|
SDL_Joystick *joystick;
|
|
|
|
SDL_LockJoysticks();
|
|
|
|
if (SDL_updating_joystick) {
|
|
/* The joysticks are already being updated */
|
|
SDL_UnlockJoysticks();
|
|
return;
|
|
}
|
|
|
|
SDL_updating_joystick = SDL_TRUE;
|
|
|
|
/* Make sure the list is unlocked while dispatching events to prevent application deadlocks */
|
|
SDL_UnlockJoysticks();
|
|
|
|
for (joystick = SDL_joysticks; joystick; joystick = joystick->next) {
|
|
SDL_SYS_JoystickUpdate(joystick);
|
|
|
|
if (joystick->delayed_guide_button) {
|
|
SDL_GameControllerHandleDelayedGuideButton(joystick);
|
|
}
|
|
|
|
if (joystick->force_recentering) {
|
|
int i;
|
|
|
|
/* Tell the app that everything is centered/unpressed... */
|
|
for (i = 0; i < joystick->naxes; i++) {
|
|
if (joystick->axes[i].has_initial_value) {
|
|
SDL_PrivateJoystickAxis(joystick, i, joystick->axes[i].zero);
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < joystick->nbuttons; i++) {
|
|
SDL_PrivateJoystickButton(joystick, i, 0);
|
|
}
|
|
|
|
for (i = 0; i < joystick->nhats; i++) {
|
|
SDL_PrivateJoystickHat(joystick, i, SDL_HAT_CENTERED);
|
|
}
|
|
|
|
joystick->force_recentering = SDL_FALSE;
|
|
}
|
|
}
|
|
|
|
SDL_LockJoysticks();
|
|
|
|
SDL_updating_joystick = SDL_FALSE;
|
|
|
|
/* If any joysticks were closed while updating, free them here */
|
|
for (joystick = SDL_joysticks; joystick; joystick = joystick->next) {
|
|
if (joystick->ref_count <= 0) {
|
|
SDL_JoystickClose(joystick);
|
|
}
|
|
}
|
|
|
|
/* this needs to happen AFTER walking the joystick list above, so that any
|
|
dangling hardware data from removed devices can be free'd
|
|
*/
|
|
SDL_SYS_JoystickDetect();
|
|
|
|
SDL_UnlockJoysticks();
|
|
}
|
|
|
|
int
|
|
SDL_JoystickEventState(int state)
|
|
{
|
|
#if SDL_EVENTS_DISABLED
|
|
return SDL_DISABLE;
|
|
#else
|
|
const Uint32 event_list[] = {
|
|
SDL_JOYAXISMOTION, SDL_JOYBALLMOTION, SDL_JOYHATMOTION,
|
|
SDL_JOYBUTTONDOWN, SDL_JOYBUTTONUP, SDL_JOYDEVICEADDED, SDL_JOYDEVICEREMOVED
|
|
};
|
|
unsigned int i;
|
|
|
|
switch (state) {
|
|
case SDL_QUERY:
|
|
state = SDL_DISABLE;
|
|
for (i = 0; i < SDL_arraysize(event_list); ++i) {
|
|
state = SDL_EventState(event_list[i], SDL_QUERY);
|
|
if (state == SDL_ENABLE) {
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
for (i = 0; i < SDL_arraysize(event_list); ++i) {
|
|
SDL_EventState(event_list[i], state);
|
|
}
|
|
break;
|
|
}
|
|
return (state);
|
|
#endif /* SDL_EVENTS_DISABLED */
|
|
}
|
|
|
|
void SDL_GetJoystickGUIDInfo(SDL_JoystickGUID guid, Uint16 *vendor, Uint16 *product, Uint16 *version)
|
|
{
|
|
Uint16 *guid16 = (Uint16 *)guid.data;
|
|
|
|
/* If the GUID fits the form of BUS 0000 VENDOR 0000 PRODUCT 0000, return the data */
|
|
if (/* guid16[0] is device bus type */
|
|
guid16[1] == 0x0000 &&
|
|
/* guid16[2] is vendor ID */
|
|
guid16[3] == 0x0000 &&
|
|
/* guid16[4] is product ID */
|
|
guid16[5] == 0x0000
|
|
/* guid16[6] is product version */
|
|
) {
|
|
if (vendor) {
|
|
*vendor = guid16[2];
|
|
}
|
|
if (product) {
|
|
*product = guid16[4];
|
|
}
|
|
if (version) {
|
|
*version = guid16[6];
|
|
}
|
|
} else {
|
|
if (vendor) {
|
|
*vendor = 0;
|
|
}
|
|
if (product) {
|
|
*product = 0;
|
|
}
|
|
if (version) {
|
|
*version = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
static SDL_bool SDL_IsJoystickProductWheel(Uint32 vidpid)
|
|
{
|
|
static Uint32 wheel_joysticks[] = {
|
|
MAKE_VIDPID(0x046d, 0xc294), /* Logitech generic wheel */
|
|
MAKE_VIDPID(0x046d, 0xc295), /* Logitech Momo Force */
|
|
MAKE_VIDPID(0x046d, 0xc298), /* Logitech Driving Force Pro */
|
|
MAKE_VIDPID(0x046d, 0xc299), /* Logitech G25 */
|
|
MAKE_VIDPID(0x046d, 0xc29a), /* Logitech Driving Force GT */
|
|
MAKE_VIDPID(0x046d, 0xc29b), /* Logitech G27 */
|
|
MAKE_VIDPID(0x046d, 0xc261), /* Logitech G920 (initial mode) */
|
|
MAKE_VIDPID(0x046d, 0xc262), /* Logitech G920 (active mode) */
|
|
MAKE_VIDPID(0x044f, 0xb65d), /* Thrustmaster Wheel FFB */
|
|
MAKE_VIDPID(0x044f, 0xb66d), /* Thrustmaster Wheel FFB */
|
|
MAKE_VIDPID(0x044f, 0xb677), /* Thrustmaster T150 */
|
|
MAKE_VIDPID(0x044f, 0xb664), /* Thrustmaster TX (initial mode) */
|
|
MAKE_VIDPID(0x044f, 0xb669), /* Thrustmaster TX (active mode) */
|
|
};
|
|
int i;
|
|
|
|
for (i = 0; i < SDL_arraysize(wheel_joysticks); ++i) {
|
|
if (vidpid == wheel_joysticks[i]) {
|
|
return SDL_TRUE;
|
|
}
|
|
}
|
|
return SDL_FALSE;
|
|
}
|
|
|
|
static SDL_bool SDL_IsJoystickProductFlightStick(Uint32 vidpid)
|
|
{
|
|
static Uint32 flightstick_joysticks[] = {
|
|
MAKE_VIDPID(0x044f, 0x0402), /* HOTAS Warthog Joystick */
|
|
MAKE_VIDPID(0x0738, 0x2221), /* Saitek Pro Flight X-56 Rhino Stick */
|
|
};
|
|
int i;
|
|
|
|
for (i = 0; i < SDL_arraysize(flightstick_joysticks); ++i) {
|
|
if (vidpid == flightstick_joysticks[i]) {
|
|
return SDL_TRUE;
|
|
}
|
|
}
|
|
return SDL_FALSE;
|
|
}
|
|
|
|
static SDL_bool SDL_IsJoystickProductThrottle(Uint32 vidpid)
|
|
{
|
|
static Uint32 throttle_joysticks[] = {
|
|
MAKE_VIDPID(0x044f, 0x0404), /* HOTAS Warthog Throttle */
|
|
MAKE_VIDPID(0x0738, 0xa221), /* Saitek Pro Flight X-56 Rhino Throttle */
|
|
};
|
|
int i;
|
|
|
|
for (i = 0; i < SDL_arraysize(throttle_joysticks); ++i) {
|
|
if (vidpid == throttle_joysticks[i]) {
|
|
return SDL_TRUE;
|
|
}
|
|
}
|
|
return SDL_FALSE;
|
|
}
|
|
|
|
static SDL_JoystickType SDL_GetJoystickGUIDType(SDL_JoystickGUID guid)
|
|
{
|
|
Uint16 vendor;
|
|
Uint16 product;
|
|
Uint32 vidpid;
|
|
|
|
if (guid.data[14] == 'x') {
|
|
/* XInput GUID, get the type based on the XInput device subtype */
|
|
switch (guid.data[15]) {
|
|
case 0x01: /* XINPUT_DEVSUBTYPE_GAMEPAD */
|
|
return SDL_JOYSTICK_TYPE_GAMECONTROLLER;
|
|
case 0x02: /* XINPUT_DEVSUBTYPE_WHEEL */
|
|
return SDL_JOYSTICK_TYPE_WHEEL;
|
|
case 0x03: /* XINPUT_DEVSUBTYPE_ARCADE_STICK */
|
|
return SDL_JOYSTICK_TYPE_ARCADE_STICK;
|
|
case 0x04: /* XINPUT_DEVSUBTYPE_FLIGHT_STICK */
|
|
return SDL_JOYSTICK_TYPE_FLIGHT_STICK;
|
|
case 0x05: /* XINPUT_DEVSUBTYPE_DANCE_PAD */
|
|
return SDL_JOYSTICK_TYPE_DANCE_PAD;
|
|
case 0x06: /* XINPUT_DEVSUBTYPE_GUITAR */
|
|
case 0x07: /* XINPUT_DEVSUBTYPE_GUITAR_ALTERNATE */
|
|
case 0x0B: /* XINPUT_DEVSUBTYPE_GUITAR_BASS */
|
|
return SDL_JOYSTICK_TYPE_GUITAR;
|
|
case 0x08: /* XINPUT_DEVSUBTYPE_DRUM_KIT */
|
|
return SDL_JOYSTICK_TYPE_DRUM_KIT;
|
|
case 0x13: /* XINPUT_DEVSUBTYPE_ARCADE_PAD */
|
|
return SDL_JOYSTICK_TYPE_ARCADE_PAD;
|
|
default:
|
|
return SDL_JOYSTICK_TYPE_UNKNOWN;
|
|
}
|
|
}
|
|
|
|
SDL_GetJoystickGUIDInfo(guid, &vendor, &product, NULL);
|
|
vidpid = MAKE_VIDPID(vendor, product);
|
|
|
|
if (SDL_IsJoystickProductWheel(vidpid)) {
|
|
return SDL_JOYSTICK_TYPE_WHEEL;
|
|
}
|
|
|
|
if (SDL_IsJoystickProductFlightStick(vidpid)) {
|
|
return SDL_JOYSTICK_TYPE_FLIGHT_STICK;
|
|
}
|
|
|
|
if (SDL_IsJoystickProductThrottle(vidpid)) {
|
|
return SDL_JOYSTICK_TYPE_THROTTLE;
|
|
}
|
|
|
|
return SDL_JOYSTICK_TYPE_UNKNOWN;
|
|
}
|
|
|
|
/* return the guid for this index */
|
|
SDL_JoystickGUID SDL_JoystickGetDeviceGUID(int device_index)
|
|
{
|
|
if (device_index < 0 || device_index >= SDL_NumJoysticks()) {
|
|
SDL_JoystickGUID emptyGUID;
|
|
SDL_SetError("There are %d joysticks available", SDL_NumJoysticks());
|
|
SDL_zero(emptyGUID);
|
|
return emptyGUID;
|
|
}
|
|
return SDL_SYS_JoystickGetDeviceGUID(device_index);
|
|
}
|
|
|
|
Uint16 SDL_JoystickGetDeviceVendor(int device_index)
|
|
{
|
|
Uint16 vendor;
|
|
SDL_JoystickGUID guid = SDL_JoystickGetDeviceGUID(device_index);
|
|
|
|
SDL_GetJoystickGUIDInfo(guid, &vendor, NULL, NULL);
|
|
return vendor;
|
|
}
|
|
|
|
Uint16 SDL_JoystickGetDeviceProduct(int device_index)
|
|
{
|
|
Uint16 product;
|
|
SDL_JoystickGUID guid = SDL_JoystickGetDeviceGUID(device_index);
|
|
|
|
SDL_GetJoystickGUIDInfo(guid, NULL, &product, NULL);
|
|
return product;
|
|
}
|
|
|
|
Uint16 SDL_JoystickGetDeviceProductVersion(int device_index)
|
|
{
|
|
Uint16 version;
|
|
SDL_JoystickGUID guid = SDL_JoystickGetDeviceGUID(device_index);
|
|
|
|
SDL_GetJoystickGUIDInfo(guid, NULL, NULL, &version);
|
|
return version;
|
|
}
|
|
|
|
SDL_JoystickType SDL_JoystickGetDeviceType(int device_index)
|
|
{
|
|
SDL_JoystickType type;
|
|
SDL_JoystickGUID guid = SDL_JoystickGetDeviceGUID(device_index);
|
|
|
|
type = SDL_GetJoystickGUIDType(guid);
|
|
if (type == SDL_JOYSTICK_TYPE_UNKNOWN) {
|
|
if (SDL_IsGameController(device_index)) {
|
|
type = SDL_JOYSTICK_TYPE_GAMECONTROLLER;
|
|
}
|
|
}
|
|
return type;
|
|
}
|
|
|
|
SDL_JoystickID SDL_JoystickGetDeviceInstanceID(int device_index)
|
|
{
|
|
if (device_index < 0 || device_index >= SDL_NumJoysticks()) {
|
|
SDL_SetError("There are %d joysticks available", SDL_NumJoysticks());
|
|
return -1;
|
|
}
|
|
return SDL_SYS_GetInstanceIdOfDeviceIndex(device_index);
|
|
}
|
|
|
|
SDL_JoystickGUID SDL_JoystickGetGUID(SDL_Joystick * joystick)
|
|
{
|
|
if (!SDL_PrivateJoystickValid(joystick)) {
|
|
SDL_JoystickGUID emptyGUID;
|
|
SDL_zero(emptyGUID);
|
|
return emptyGUID;
|
|
}
|
|
return SDL_SYS_JoystickGetGUID(joystick);
|
|
}
|
|
|
|
Uint16 SDL_JoystickGetVendor(SDL_Joystick * joystick)
|
|
{
|
|
Uint16 vendor;
|
|
SDL_JoystickGUID guid = SDL_JoystickGetGUID(joystick);
|
|
|
|
SDL_GetJoystickGUIDInfo(guid, &vendor, NULL, NULL);
|
|
return vendor;
|
|
}
|
|
|
|
Uint16 SDL_JoystickGetProduct(SDL_Joystick * joystick)
|
|
{
|
|
Uint16 product;
|
|
SDL_JoystickGUID guid = SDL_JoystickGetGUID(joystick);
|
|
|
|
SDL_GetJoystickGUIDInfo(guid, NULL, &product, NULL);
|
|
return product;
|
|
}
|
|
|
|
Uint16 SDL_JoystickGetProductVersion(SDL_Joystick * joystick)
|
|
{
|
|
Uint16 version;
|
|
SDL_JoystickGUID guid = SDL_JoystickGetGUID(joystick);
|
|
|
|
SDL_GetJoystickGUIDInfo(guid, NULL, NULL, &version);
|
|
return version;
|
|
}
|
|
|
|
SDL_JoystickType SDL_JoystickGetType(SDL_Joystick * joystick)
|
|
{
|
|
SDL_JoystickType type;
|
|
SDL_JoystickGUID guid = SDL_JoystickGetGUID(joystick);
|
|
|
|
type = SDL_GetJoystickGUIDType(guid);
|
|
if (type == SDL_JOYSTICK_TYPE_UNKNOWN) {
|
|
if (joystick && joystick->is_game_controller) {
|
|
type = SDL_JOYSTICK_TYPE_GAMECONTROLLER;
|
|
}
|
|
}
|
|
return type;
|
|
}
|
|
|
|
/* convert the guid to a printable string */
|
|
void SDL_JoystickGetGUIDString(SDL_JoystickGUID guid, char *pszGUID, int cbGUID)
|
|
{
|
|
static const char k_rgchHexToASCII[] = "0123456789abcdef";
|
|
int i;
|
|
|
|
if ((pszGUID == NULL) || (cbGUID <= 0)) {
|
|
return;
|
|
}
|
|
|
|
for (i = 0; i < sizeof(guid.data) && i < (cbGUID-1)/2; i++) {
|
|
/* each input byte writes 2 ascii chars, and might write a null byte. */
|
|
/* If we don't have room for next input byte, stop */
|
|
unsigned char c = guid.data[i];
|
|
|
|
*pszGUID++ = k_rgchHexToASCII[c >> 4];
|
|
*pszGUID++ = k_rgchHexToASCII[c & 0x0F];
|
|
}
|
|
*pszGUID = '\0';
|
|
}
|
|
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
* Purpose: Returns the 4 bit nibble for a hex character
|
|
* Input : c -
|
|
* Output : unsigned char
|
|
*-----------------------------------------------------------------------------*/
|
|
static unsigned char nibble(char c)
|
|
{
|
|
if ((c >= '0') && (c <= '9')) {
|
|
return (unsigned char)(c - '0');
|
|
}
|
|
|
|
if ((c >= 'A') && (c <= 'F')) {
|
|
return (unsigned char)(c - 'A' + 0x0a);
|
|
}
|
|
|
|
if ((c >= 'a') && (c <= 'f')) {
|
|
return (unsigned char)(c - 'a' + 0x0a);
|
|
}
|
|
|
|
/* received an invalid character, and no real way to return an error */
|
|
/* AssertMsg1(false, "Q_nibble invalid hex character '%c' ", c); */
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* convert the string version of a joystick guid to the struct */
|
|
SDL_JoystickGUID SDL_JoystickGetGUIDFromString(const char *pchGUID)
|
|
{
|
|
SDL_JoystickGUID guid;
|
|
int maxoutputbytes= sizeof(guid);
|
|
size_t len = SDL_strlen(pchGUID);
|
|
Uint8 *p;
|
|
size_t i;
|
|
|
|
/* Make sure it's even */
|
|
len = (len) & ~0x1;
|
|
|
|
SDL_memset(&guid, 0x00, sizeof(guid));
|
|
|
|
p = (Uint8 *)&guid;
|
|
for (i = 0; (i < len) && ((p - (Uint8 *)&guid) < maxoutputbytes); i+=2, p++) {
|
|
*p = (nibble(pchGUID[i]) << 4) | nibble(pchGUID[i+1]);
|
|
}
|
|
|
|
return guid;
|
|
}
|
|
|
|
|
|
/* update the power level for this joystick */
|
|
void SDL_PrivateJoystickBatteryLevel(SDL_Joystick * joystick, SDL_JoystickPowerLevel ePowerLevel)
|
|
{
|
|
joystick->epowerlevel = ePowerLevel;
|
|
}
|
|
|
|
|
|
/* return its power level */
|
|
SDL_JoystickPowerLevel SDL_JoystickCurrentPowerLevel(SDL_Joystick * joystick)
|
|
{
|
|
if (!SDL_PrivateJoystickValid(joystick)) {
|
|
return (SDL_JOYSTICK_POWER_UNKNOWN);
|
|
}
|
|
return joystick->epowerlevel;
|
|
}
|
|
|
|
/* vi: set ts=4 sw=4 expandtab: */
|