diff options
Diffstat (limited to '3rdparty/SDL2/src/joystick/android/SDL_sysjoystick.c')
-rw-r--r-- | 3rdparty/SDL2/src/joystick/android/SDL_sysjoystick.c | 582 |
1 files changed, 582 insertions, 0 deletions
diff --git a/3rdparty/SDL2/src/joystick/android/SDL_sysjoystick.c b/3rdparty/SDL2/src/joystick/android/SDL_sysjoystick.c new file mode 100644 index 00000000000..8656a5322d2 --- /dev/null +++ b/3rdparty/SDL2/src/joystick/android/SDL_sysjoystick.c @@ -0,0 +1,582 @@ +/* + Simple DirectMedia Layer + Copyright (C) 1997-2016 Sam Lantinga <slouken@libsdl.org> + + This software is provided 'as-is', without any express or implied + warranty. In no event will the authors be held liable for any damages + arising from the use of this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute it + freely, subject to the following restrictions: + + 1. The origin of this software must not be misrepresented; you must not + claim that you wrote the original software. If you use this software + in a product, an acknowledgment in the product documentation would be + appreciated but is not required. + 2. Altered source versions must be plainly marked as such, and must not be + misrepresented as being the original software. + 3. This notice may not be removed or altered from any source distribution. +*/ + +#include "../../SDL_internal.h" + +#ifdef SDL_JOYSTICK_ANDROID + +#include <stdio.h> /* For the definition of NULL */ +#include "SDL_error.h" +#include "SDL_events.h" + +#if !SDL_EVENTS_DISABLED +#include "../../events/SDL_events_c.h" +#endif + +#include "SDL_joystick.h" +#include "SDL_hints.h" +#include "SDL_assert.h" +#include "SDL_timer.h" +#include "SDL_log.h" +#include "SDL_sysjoystick_c.h" +#include "../SDL_joystick_c.h" +#include "../../core/android/SDL_android.h" + +#include "android/keycodes.h" + +/* As of platform android-14, android/keycodes.h is missing these defines */ +#ifndef AKEYCODE_BUTTON_1 +#define AKEYCODE_BUTTON_1 188 +#define AKEYCODE_BUTTON_2 189 +#define AKEYCODE_BUTTON_3 190 +#define AKEYCODE_BUTTON_4 191 +#define AKEYCODE_BUTTON_5 192 +#define AKEYCODE_BUTTON_6 193 +#define AKEYCODE_BUTTON_7 194 +#define AKEYCODE_BUTTON_8 195 +#define AKEYCODE_BUTTON_9 196 +#define AKEYCODE_BUTTON_10 197 +#define AKEYCODE_BUTTON_11 198 +#define AKEYCODE_BUTTON_12 199 +#define AKEYCODE_BUTTON_13 200 +#define AKEYCODE_BUTTON_14 201 +#define AKEYCODE_BUTTON_15 202 +#define AKEYCODE_BUTTON_16 203 +#endif + +#define ANDROID_ACCELEROMETER_NAME "Android Accelerometer" +#define ANDROID_ACCELEROMETER_DEVICE_ID INT_MIN +#define ANDROID_MAX_NBUTTONS 36 + +static SDL_joylist_item * JoystickByDeviceId(int device_id); + +static SDL_joylist_item *SDL_joylist = NULL; +static SDL_joylist_item *SDL_joylist_tail = NULL; +static int numjoysticks = 0; +static int instance_counter = 0; + + +/* Function to convert Android keyCodes into SDL ones. + * This code manipulation is done to get a sequential list of codes. + * FIXME: This is only suited for the case where we use a fixed number of buttons determined by ANDROID_MAX_NBUTTONS + */ +static int +keycode_to_SDL(int keycode) +{ + /* FIXME: If this function gets too unwiedly in the future, replace with a lookup table */ + int button = 0; + switch(keycode) + { + /* Some gamepad buttons (API 9) */ + case AKEYCODE_BUTTON_A: + button = SDL_CONTROLLER_BUTTON_A; + break; + case AKEYCODE_BUTTON_B: + button = SDL_CONTROLLER_BUTTON_B; + break; + case AKEYCODE_BUTTON_X: + button = SDL_CONTROLLER_BUTTON_X; + break; + case AKEYCODE_BUTTON_Y: + button = SDL_CONTROLLER_BUTTON_Y; + break; + case AKEYCODE_BUTTON_L1: + button = SDL_CONTROLLER_BUTTON_LEFTSHOULDER; + break; + case AKEYCODE_BUTTON_R1: + button = SDL_CONTROLLER_BUTTON_RIGHTSHOULDER; + break; + case AKEYCODE_BUTTON_THUMBL: + button = SDL_CONTROLLER_BUTTON_LEFTSTICK; + break; + case AKEYCODE_BUTTON_THUMBR: + button = SDL_CONTROLLER_BUTTON_RIGHTSTICK; + break; + case AKEYCODE_BUTTON_START: + button = SDL_CONTROLLER_BUTTON_START; + break; + case AKEYCODE_BUTTON_SELECT: + button = SDL_CONTROLLER_BUTTON_BACK; + break; + case AKEYCODE_BUTTON_MODE: + button = SDL_CONTROLLER_BUTTON_GUIDE; + break; + case AKEYCODE_BUTTON_L2: + button = SDL_CONTROLLER_BUTTON_MAX; /* Not supported by GameController */ + break; + case AKEYCODE_BUTTON_R2: + button = SDL_CONTROLLER_BUTTON_MAX+1; /* Not supported by GameController */ + break; + case AKEYCODE_BUTTON_C: + button = SDL_CONTROLLER_BUTTON_MAX+2; /* Not supported by GameController */ + break; + case AKEYCODE_BUTTON_Z: + button = SDL_CONTROLLER_BUTTON_MAX+3; /* Not supported by GameController */ + break; + + /* D-Pad key codes (API 1) */ + case AKEYCODE_DPAD_UP: + button = SDL_CONTROLLER_BUTTON_DPAD_UP; + break; + case AKEYCODE_DPAD_DOWN: + button = SDL_CONTROLLER_BUTTON_DPAD_DOWN; + break; + case AKEYCODE_DPAD_LEFT: + button = SDL_CONTROLLER_BUTTON_DPAD_LEFT; + break; + case AKEYCODE_DPAD_RIGHT: + button = SDL_CONTROLLER_BUTTON_DPAD_RIGHT; + break; + case AKEYCODE_DPAD_CENTER: + button = SDL_CONTROLLER_BUTTON_MAX+4; /* Not supported by GameController */ + break; + + /* More gamepad buttons (API 12), these get mapped to 20...35*/ + case AKEYCODE_BUTTON_1: + case AKEYCODE_BUTTON_2: + case AKEYCODE_BUTTON_3: + case AKEYCODE_BUTTON_4: + case AKEYCODE_BUTTON_5: + case AKEYCODE_BUTTON_6: + case AKEYCODE_BUTTON_7: + case AKEYCODE_BUTTON_8: + case AKEYCODE_BUTTON_9: + case AKEYCODE_BUTTON_10: + case AKEYCODE_BUTTON_11: + case AKEYCODE_BUTTON_12: + case AKEYCODE_BUTTON_13: + case AKEYCODE_BUTTON_14: + case AKEYCODE_BUTTON_15: + case AKEYCODE_BUTTON_16: + button = keycode - AKEYCODE_BUTTON_1 + SDL_CONTROLLER_BUTTON_MAX + 5; + break; + + default: + return -1; + break; + } + + /* This is here in case future generations, probably with six fingers per hand, + * happily add new cases up above and forget to update the max number of buttons. + */ + SDL_assert(button < ANDROID_MAX_NBUTTONS); + return button; + +} + +int +Android_OnPadDown(int device_id, int keycode) +{ + SDL_joylist_item *item; + int button = keycode_to_SDL(keycode); + if (button >= 0) { + item = JoystickByDeviceId(device_id); + if (item && item->joystick) { + SDL_PrivateJoystickButton(item->joystick, button , SDL_PRESSED); + return 0; + } + } + + return -1; +} + +int +Android_OnPadUp(int device_id, int keycode) +{ + SDL_joylist_item *item; + int button = keycode_to_SDL(keycode); + if (button >= 0) { + item = JoystickByDeviceId(device_id); + if (item && item->joystick) { + SDL_PrivateJoystickButton(item->joystick, button, SDL_RELEASED); + return 0; + } + } + + return -1; +} + +int +Android_OnJoy(int device_id, int axis, float value) +{ + /* Android gives joy info normalized as [-1.0, 1.0] or [0.0, 1.0] */ + SDL_joylist_item *item = JoystickByDeviceId(device_id); + if (item && item->joystick) { + SDL_PrivateJoystickAxis(item->joystick, axis, (Sint16) (32767.*value) ); + } + + return 0; +} + +int +Android_OnHat(int device_id, int hat_id, int x, int y) +{ + const Uint8 position_map[3][3] = { + {SDL_HAT_LEFTUP, SDL_HAT_UP, SDL_HAT_RIGHTUP}, + {SDL_HAT_LEFT, SDL_HAT_CENTERED, SDL_HAT_RIGHT}, + {SDL_HAT_LEFTDOWN, SDL_HAT_DOWN, SDL_HAT_RIGHTDOWN} + }; + + if (x >= -1 && x <=1 && y >= -1 && y <= 1) { + SDL_joylist_item *item = JoystickByDeviceId(device_id); + if (item && item->joystick) { + SDL_PrivateJoystickHat(item->joystick, hat_id, position_map[y+1][x+1] ); + } + return 0; + } + + return -1; +} + + +int +Android_AddJoystick(int device_id, const char *name, SDL_bool is_accelerometer, int nbuttons, int naxes, int nhats, int nballs) +{ + SDL_JoystickGUID guid; + SDL_joylist_item *item; +#if !SDL_EVENTS_DISABLED + SDL_Event event; +#endif + + if(JoystickByDeviceId(device_id) != NULL || name == NULL) { + return -1; + } + + /* the GUID is just the first 16 chars of the name for now */ + SDL_zero( guid ); + SDL_memcpy( &guid, name, SDL_min( sizeof(guid), SDL_strlen( name ) ) ); + + item = (SDL_joylist_item *) SDL_malloc(sizeof (SDL_joylist_item)); + if (item == NULL) { + return -1; + } + + SDL_zerop(item); + item->guid = guid; + item->device_id = device_id; + item->name = SDL_strdup(name); + if ( item->name == NULL ) { + SDL_free(item); + return -1; + } + + item->is_accelerometer = is_accelerometer; + if (nbuttons > -1) { + item->nbuttons = nbuttons; + } + else { + item->nbuttons = ANDROID_MAX_NBUTTONS; + } + item->naxes = naxes; + item->nhats = nhats; + item->nballs = nballs; + item->device_instance = instance_counter++; + if (SDL_joylist_tail == NULL) { + SDL_joylist = SDL_joylist_tail = item; + } else { + SDL_joylist_tail->next = item; + SDL_joylist_tail = item; + } + + /* Need to increment the joystick count before we post the event */ + ++numjoysticks; + +#if !SDL_EVENTS_DISABLED + event.type = SDL_JOYDEVICEADDED; + + if (SDL_GetEventState(event.type) == SDL_ENABLE) { + event.jdevice.which = (numjoysticks - 1); + if ( (SDL_EventOK == NULL) || + (*SDL_EventOK) (SDL_EventOKParam, &event) ) { + SDL_PushEvent(&event); + } + } +#endif /* !SDL_EVENTS_DISABLED */ + +#ifdef DEBUG_JOYSTICK + SDL_Log("Added joystick %s with device_id %d", name, device_id); +#endif + + return numjoysticks; +} + +int +Android_RemoveJoystick(int device_id) +{ + SDL_joylist_item *item = SDL_joylist; + SDL_joylist_item *prev = NULL; +#if !SDL_EVENTS_DISABLED + SDL_Event event; +#endif + + /* Don't call JoystickByDeviceId here or there'll be an infinite loop! */ + while (item != NULL) { + if (item->device_id == device_id) { + break; + } + prev = item; + item = item->next; + } + + if (item == NULL) { + return -1; + } + + const int retval = item->device_instance; + if (item->joystick) { + item->joystick->hwdata = NULL; + } + + if (prev != NULL) { + prev->next = item->next; + } else { + SDL_assert(SDL_joylist == item); + SDL_joylist = item->next; + } + if (item == SDL_joylist_tail) { + SDL_joylist_tail = prev; + } + + /* Need to decrement the joystick count before we post the event */ + --numjoysticks; + +#if !SDL_EVENTS_DISABLED + event.type = SDL_JOYDEVICEREMOVED; + + if (SDL_GetEventState(event.type) == SDL_ENABLE) { + event.jdevice.which = item->device_instance; + if ( (SDL_EventOK == NULL) || + (*SDL_EventOK) (SDL_EventOKParam, &event) ) { + SDL_PushEvent(&event); + } + } +#endif /* !SDL_EVENTS_DISABLED */ + +#ifdef DEBUG_JOYSTICK + SDL_Log("Removed joystick with device_id %d", device_id); +#endif + + SDL_free(item->name); + SDL_free(item); + return retval; +} + + +int +SDL_SYS_JoystickInit(void) +{ + const char *hint; + SDL_SYS_JoystickDetect(); + + hint = SDL_GetHint(SDL_HINT_ACCELEROMETER_AS_JOYSTICK); + if (!hint || SDL_atoi(hint)) { + /* Default behavior, accelerometer as joystick */ + Android_AddJoystick(ANDROID_ACCELEROMETER_DEVICE_ID, ANDROID_ACCELEROMETER_NAME, SDL_TRUE, 0, 3, 0, 0); + } + + return (numjoysticks); + +} + +int SDL_SYS_NumJoysticks() +{ + return numjoysticks; +} + +void SDL_SYS_JoystickDetect() +{ + /* Support for device connect/disconnect is API >= 16 only, + * so we poll every three seconds + * Ref: http://developer.android.com/reference/android/hardware/input/InputManager.InputDeviceListener.html + */ + static Uint32 timeout = 0; + if (SDL_TICKS_PASSED(SDL_GetTicks(), timeout)) { + timeout = SDL_GetTicks() + 3000; + Android_JNI_PollInputDevices(); + } +} + +static SDL_joylist_item * +JoystickByDevIndex(int device_index) +{ + SDL_joylist_item *item = SDL_joylist; + + if ((device_index < 0) || (device_index >= numjoysticks)) { + return NULL; + } + + while (device_index > 0) { + SDL_assert(item != NULL); + device_index--; + item = item->next; + } + + return item; +} + +static SDL_joylist_item * +JoystickByDeviceId(int device_id) +{ + SDL_joylist_item *item = SDL_joylist; + + while (item != NULL) { + if (item->device_id == device_id) { + return item; + } + item = item->next; + } + + /* Joystick not found, try adding it */ + SDL_SYS_JoystickDetect(); + + while (item != NULL) { + if (item->device_id == device_id) { + return item; + } + item = item->next; + } + + return NULL; +} + +/* Function to get the device-dependent name of a joystick */ +const char * +SDL_SYS_JoystickNameForDeviceIndex(int device_index) +{ + return JoystickByDevIndex(device_index)->name; +} + +/* Function to perform the mapping from device index to the instance id for this index */ +SDL_JoystickID SDL_SYS_GetInstanceIdOfDeviceIndex(int device_index) +{ + return JoystickByDevIndex(device_index)->device_instance; +} + +/* Function to open a joystick for use. + The joystick to open is specified by the device index. + This should fill the nbuttons and naxes fields of the joystick structure. + It returns 0, or -1 if there is an error. + */ +int +SDL_SYS_JoystickOpen(SDL_Joystick * joystick, int device_index) +{ + SDL_joylist_item *item = JoystickByDevIndex(device_index); + + if (item == NULL ) { + return SDL_SetError("No such device"); + } + + if (item->joystick != NULL) { + return SDL_SetError("Joystick already opened"); + } + + joystick->instance_id = item->device_instance; + joystick->hwdata = (struct joystick_hwdata *) item; + item->joystick = joystick; + joystick->nhats = item->nhats; + joystick->nballs = item->nballs; + joystick->nbuttons = item->nbuttons; + joystick->naxes = item->naxes; + + return (0); +} + +/* Function to determine if this joystick is attached to the system right now */ +SDL_bool SDL_SYS_JoystickAttached(SDL_Joystick *joystick) +{ + return joystick->hwdata != NULL; +} + +void +SDL_SYS_JoystickUpdate(SDL_Joystick * joystick) +{ + int i; + Sint16 value; + float values[3]; + SDL_joylist_item *item = SDL_joylist; + + while (item) { + if (item->is_accelerometer) { + if (item->joystick) { + if (Android_JNI_GetAccelerometerValues(values)) { + for ( i = 0; i < 3; i++ ) { + if (values[i] > 1.0f) { + values[i] = 1.0f; + } else if (values[i] < -1.0f) { + values[i] = -1.0f; + } + + value = (Sint16)(values[i] * 32767.0f); + SDL_PrivateJoystickAxis(item->joystick, i, value); + } + } + } + break; + } + item = item->next; + } +} + +/* Function to close a joystick after use */ +void +SDL_SYS_JoystickClose(SDL_Joystick * joystick) +{ +} + +/* Function to perform any system-specific joystick related cleanup */ +void +SDL_SYS_JoystickQuit(void) +{ + SDL_joylist_item *item = NULL; + SDL_joylist_item *next = NULL; + + for (item = SDL_joylist; item; item = next) { + next = item->next; + SDL_free(item->name); + SDL_free(item); + } + + SDL_joylist = SDL_joylist_tail = NULL; + + numjoysticks = 0; + instance_counter = 0; +} + +SDL_JoystickGUID SDL_SYS_JoystickGetDeviceGUID( int device_index ) +{ + return JoystickByDevIndex(device_index)->guid; +} + +SDL_JoystickGUID SDL_SYS_JoystickGetGUID(SDL_Joystick * joystick) +{ + SDL_JoystickGUID guid; + + if (joystick->hwdata != NULL) { + return ((SDL_joylist_item*)joystick->hwdata)->guid; + } + + SDL_zero(guid); + return guid; +} + +#endif /* SDL_JOYSTICK_ANDROID */ + +/* vi: set ts=4 sw=4 expandtab: */ |