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RetroArch/input/drivers/android_input.c

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/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
* Copyright (C) 2011-2017 - Daniel De Matteis
* Copyright (C) 2012-2015 - Michael Lelli
* Copyright (C) 2013-2014 - Steven Crowe
*
* RetroArch is free software: you can redistribute it and/or modify it under the terms
* of the GNU General Public License as published by the Free Software Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include <unistd.h>
#include <dlfcn.h>
#include <android/keycodes.h>
#include <dynamic/dylib.h>
#include <retro_inline.h>
#include <string/stdstring.h>
#ifdef HAVE_CONFIG_H
#include "../../config.h"
#endif
#ifdef HAVE_MENU
#include "../../menu/menu_driver.h"
#endif
#include "../input_config.h"
#include "../input_driver.h"
#include "../../frontend/drivers/platform_linux.h"
#include "../../gfx/video_driver.h"
#include "../drivers_keyboard/keyboard_event_android.h"
#include "../../tasks/tasks_internal.h"
#include "../../performance_counters.h"
#define MAX_TOUCH 16
#define MAX_NUM_KEYBOARDS 3
/* If using an SDK lower than 14 then add missing mouse button codes */
#if __ANDROID_API__ < 14
enum {
AMOTION_EVENT_BUTTON_PRIMARY = 1 << 0,
AMOTION_EVENT_BUTTON_SECONDARY = 1 << 1,
AMOTION_EVENT_BUTTON_TERTIARY = 1 << 2,
AMOTION_EVENT_BUTTON_BACK = 1 << 3,
AMOTION_EVENT_BUTTON_FORWARD = 1 << 4,
};
#endif
/* If using an SDK lower than 24 then add missing relative axis codes */
#if __ANDROID_API__ < 24
#define AMOTION_EVENT_AXIS_RELATIVE_X 27
#define AMOTION_EVENT_AXIS_RELATIVE_Y 28
#endif
/* Use this to enable/disable using the touch screen as mouse */
#define ENABLE_TOUCH_SCREEN_MOUSE 1
typedef struct
{
float x;
float y;
float z;
} sensor_t;
struct input_pointer
{
int16_t x, y;
int16_t full_x, full_y;
};
static int pad_id1 = -1;
static int pad_id2 = -1;
static int kbd_id[MAX_NUM_KEYBOARDS];
static int kbd_num = 0;
enum
{
AXIS_X = 0,
AXIS_Y = 1,
AXIS_Z = 11,
AXIS_RZ = 14,
AXIS_HAT_X = 15,
AXIS_HAT_Y = 16,
AXIS_LTRIGGER = 17,
AXIS_RTRIGGER = 18,
AXIS_GAS = 22,
AXIS_BRAKE = 23
};
typedef struct state_device
{
int id;
int port;
char name[256];
} state_device_t;
typedef struct android_input
{
bool blocked;
const input_device_driver_t *joypad;
state_device_t pad_states[MAX_PADS];
int16_t analog_state[MAX_PADS][MAX_AXIS];
int8_t hat_state[MAX_PADS][2];
unsigned pads_connected;
sensor_t accelerometer_state;
struct input_pointer pointer[MAX_TOUCH];
unsigned pointer_count;
int mouse_x_delta, mouse_y_delta;
float mouse_x_prev, mouse_y_prev;
int mouse_l, mouse_r, mouse_m;
int64_t quick_tap_time;
} android_input_t;
static void frontend_android_get_version_sdk(int32_t *sdk);
static void frontend_android_get_name(char *s, size_t len);
bool (*engine_lookup_name)(char *buf,
int *vendorId, int *productId, size_t size, int id);
void (*engine_handle_dpad)(android_input_t *, AInputEvent*, int, int);
static bool android_input_set_sensor_state(void *data, unsigned port,
enum retro_sensor_action action, unsigned event_rate);
extern float AMotionEvent_getAxisValue(const AInputEvent* motion_event,
int32_t axis, size_t pointer_idx);
static typeof(AMotionEvent_getAxisValue) *p_AMotionEvent_getAxisValue;
#define AMotionEvent_getAxisValue (*p_AMotionEvent_getAxisValue)
extern int32_t AMotionEvent_getButtonState(const AInputEvent* motion_event);
static typeof(AMotionEvent_getButtonState) *p_AMotionEvent_getButtonState;
#define AMotionEvent_getButtonState (*p_AMotionEvent_getButtonState)
static void *libandroid_handle;
static bool android_input_lookup_name_prekitkat(char *buf,
int *vendorId, int *productId, size_t size, int id)
{
jobject name = NULL;
jmethodID getName = NULL;
jobject device = NULL;
jmethodID method = NULL;
jclass class = 0;
const char *str = NULL;
JNIEnv *env = (JNIEnv*)jni_thread_getenv();
if (!env)
goto error;
RARCH_LOG("Using old lookup");
FIND_CLASS(env, class, "android/view/InputDevice");
if (!class)
goto error;
GET_STATIC_METHOD_ID(env, method, class, "getDevice",
"(I)Landroid/view/InputDevice;");
if (!method)
goto error;
CALL_OBJ_STATIC_METHOD_PARAM(env, device, class, method, (jint)id);
if (!device)
{
RARCH_ERR("Failed to find device for ID: %d\n", id);
goto error;
}
GET_METHOD_ID(env, getName, class, "getName", "()Ljava/lang/String;");
if (!getName)
goto error;
CALL_OBJ_METHOD(env, name, device, getName);
if (!name)
{
RARCH_ERR("Failed to find name for device ID: %d\n", id);
goto error;
}
buf[0] = '\0';
str = (*env)->GetStringUTFChars(env, name, 0);
if (str)
strlcpy(buf, str, size);
(*env)->ReleaseStringUTFChars(env, name, str);
RARCH_LOG("device name: %s\n", buf);
return true;
error:
return false;
}
static bool android_input_lookup_name(char *buf,
int *vendorId, int *productId, size_t size, int id)
{
jmethodID getVendorId = NULL;
jmethodID getProductId = NULL;
jmethodID getName = NULL;
jobject device = NULL;
jobject name = NULL;
jmethodID method = NULL;
jclass class = NULL;
const char *str = NULL;
JNIEnv *env = (JNIEnv*)jni_thread_getenv();
if (!env)
goto error;
RARCH_LOG("Using new lookup");
FIND_CLASS(env, class, "android/view/InputDevice");
if (!class)
goto error;
GET_STATIC_METHOD_ID(env, method, class, "getDevice",
"(I)Landroid/view/InputDevice;");
if (!method)
goto error;
CALL_OBJ_STATIC_METHOD_PARAM(env, device, class, method, (jint)id);
if (!device)
{
RARCH_ERR("Failed to find device for ID: %d\n", id);
goto error;
}
GET_METHOD_ID(env, getName, class, "getName", "()Ljava/lang/String;");
if (!getName)
goto error;
CALL_OBJ_METHOD(env, name, device, getName);
if (!name)
{
RARCH_ERR("Failed to find name for device ID: %d\n", id);
goto error;
}
buf[0] = '\0';
str = (*env)->GetStringUTFChars(env, name, 0);
if (str)
strlcpy(buf, str, size);
(*env)->ReleaseStringUTFChars(env, name, str);
RARCH_LOG("device name: %s\n", buf);
GET_METHOD_ID(env, getVendorId, class, "getVendorId", "()I");
if (!getVendorId)
goto error;
CALL_INT_METHOD(env, *vendorId, device, getVendorId);
RARCH_LOG("device vendor id: %d\n", *vendorId);
GET_METHOD_ID(env, getProductId, class, "getProductId", "()I");
if (!getProductId)
goto error;
*productId = 0;
CALL_INT_METHOD(env, *productId, device, getProductId);
RARCH_LOG("device product id: %d\n", *productId);
return true;
error:
return false;
}
static void android_input_poll_main_cmd(void)
{
int8_t cmd;
struct android_app *android_app = (struct android_app*)g_android;
if (read(android_app->msgread, &cmd, sizeof(cmd)) != sizeof(cmd))
cmd = -1;
switch (cmd)
{
case APP_CMD_REINIT_DONE:
slock_lock(android_app->mutex);
android_app->reinitRequested = 0;
scond_broadcast(android_app->cond);
slock_unlock(android_app->mutex);
break;
case APP_CMD_INPUT_CHANGED:
slock_lock(android_app->mutex);
if (android_app->inputQueue)
AInputQueue_detachLooper(android_app->inputQueue);
android_app->inputQueue = android_app->pendingInputQueue;
if (android_app->inputQueue)
{
RARCH_LOG("Attaching input queue to looper");
AInputQueue_attachLooper(android_app->inputQueue,
android_app->looper, LOOPER_ID_INPUT, NULL,
NULL);
}
scond_broadcast(android_app->cond);
slock_unlock(android_app->mutex);
break;
case APP_CMD_INIT_WINDOW:
slock_lock(android_app->mutex);
android_app->window = android_app->pendingWindow;
android_app->reinitRequested = 1;
scond_broadcast(android_app->cond);
slock_unlock(android_app->mutex);
break;
case APP_CMD_SAVE_STATE:
slock_lock(android_app->mutex);
android_app->stateSaved = 1;
scond_broadcast(android_app->cond);
slock_unlock(android_app->mutex);
break;
case APP_CMD_RESUME:
case APP_CMD_START:
case APP_CMD_PAUSE:
case APP_CMD_STOP:
slock_lock(android_app->mutex);
android_app->activityState = cmd;
scond_broadcast(android_app->cond);
slock_unlock(android_app->mutex);
break;
case APP_CMD_CONFIG_CHANGED:
AConfiguration_fromAssetManager(android_app->config,
android_app->activity->assetManager);
break;
case APP_CMD_TERM_WINDOW:
slock_lock(android_app->mutex);
/* The window is being hidden or closed, clean it up. */
/* terminate display/EGL context here */
android_app->window = NULL;
scond_broadcast(android_app->cond);
slock_unlock(android_app->mutex);
break;
case APP_CMD_GAINED_FOCUS:
{
bool boolean = false;
rarch_ctl(RARCH_CTL_SET_PAUSED, &boolean);
rarch_ctl(RARCH_CTL_SET_IDLE, &boolean);
video_driver_unset_stub_frame();
if ((android_app->sensor_state_mask
& (UINT64_C(1) << RETRO_SENSOR_ACCELEROMETER_ENABLE))
&& android_app->accelerometerSensor == NULL)
input_sensor_set_state(0,
RETRO_SENSOR_ACCELEROMETER_ENABLE,
android_app->accelerometer_event_rate);
}
slock_lock(android_app->mutex);
android_app->unfocused = false;
scond_broadcast(android_app->cond);
slock_unlock(android_app->mutex);
break;
case APP_CMD_LOST_FOCUS:
{
bool boolean = true;
rarch_ctl(RARCH_CTL_SET_PAUSED, &boolean);
rarch_ctl(RARCH_CTL_SET_IDLE, &boolean);
video_driver_set_stub_frame();
/* Avoid draining battery while app is not being used. */
if ((android_app->sensor_state_mask
& (UINT64_C(1) << RETRO_SENSOR_ACCELEROMETER_ENABLE))
&& android_app->accelerometerSensor != NULL
)
input_sensor_set_state(0,
RETRO_SENSOR_ACCELEROMETER_DISABLE,
android_app->accelerometer_event_rate);
}
slock_lock(android_app->mutex);
android_app->unfocused = true;
scond_broadcast(android_app->cond);
slock_unlock(android_app->mutex);
break;
case APP_CMD_DESTROY:
RARCH_LOG("APP_CMD_DESTROY\n");
android_app->destroyRequested = 1;
break;
}
}
static void engine_handle_dpad_default(android_input_t *android,
AInputEvent *event, int port, int source)
{
size_t motion_ptr = AMotionEvent_getAction(event) >>
AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT;
float x = AMotionEvent_getX(event, motion_ptr);
float y = AMotionEvent_getY(event, motion_ptr);
android->analog_state[port][0] = (int16_t)(x * 32767.0f);
android->analog_state[port][1] = (int16_t)(y * 32767.0f);
}
static void engine_handle_dpad_getaxisvalue(android_input_t *android,
AInputEvent *event, int port, int source)
{
size_t motion_ptr = AMotionEvent_getAction(event) >>
AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT;
float x = AMotionEvent_getAxisValue(event, AXIS_X, motion_ptr);
float y = AMotionEvent_getAxisValue(event, AXIS_Y, motion_ptr);
float z = AMotionEvent_getAxisValue(event, AXIS_Z, motion_ptr);
float rz = AMotionEvent_getAxisValue(event, AXIS_RZ, motion_ptr);
float hatx = AMotionEvent_getAxisValue(event, AXIS_HAT_X, motion_ptr);
float haty = AMotionEvent_getAxisValue(event, AXIS_HAT_Y, motion_ptr);
float ltrig = AMotionEvent_getAxisValue(event, AXIS_LTRIGGER, motion_ptr);
float rtrig = AMotionEvent_getAxisValue(event, AXIS_RTRIGGER, motion_ptr);
float brake = AMotionEvent_getAxisValue(event, AXIS_BRAKE, motion_ptr);
float gas = AMotionEvent_getAxisValue(event, AXIS_GAS, motion_ptr);
android->hat_state[port][0] = (int)hatx;
android->hat_state[port][1] = (int)haty;
/* XXX: this could be a loop instead, but do we really want to
* loop through every axis? */
android->analog_state[port][0] = (int16_t)(x * 32767.0f);
android->analog_state[port][1] = (int16_t)(y * 32767.0f);
android->analog_state[port][2] = (int16_t)(z * 32767.0f);
android->analog_state[port][3] = (int16_t)(rz * 32767.0f);
#if 0
android->analog_state[port][4] = (int16_t)(hatx * 32767.0f);
android->analog_state[port][5] = (int16_t)(haty * 32767.0f);
#endif
android->analog_state[port][6] = (int16_t)(ltrig * 32767.0f);
android->analog_state[port][7] = (int16_t)(rtrig * 32767.0f);
android->analog_state[port][8] = (int16_t)(brake * 32767.0f);
android->analog_state[port][9] = (int16_t)(gas * 32767.0f);
}
static bool android_input_init_handle(void)
{
if (libandroid_handle != NULL) /* already initialized */
return true;
#ifdef ANDROID_AARCH64
if ((libandroid_handle = dlopen("/system/lib64/libandroid.so",
RTLD_LOCAL | RTLD_LAZY)) == 0)
return false;
#else
if ((libandroid_handle = dlopen("/system/lib/libandroid.so",
RTLD_LOCAL | RTLD_LAZY)) == 0)
return false;
#endif
if ((p_AMotionEvent_getAxisValue = dlsym(RTLD_DEFAULT,
"AMotionEvent_getAxisValue")))
{
RARCH_LOG("Set engine_handle_dpad to 'Get Axis Value' (for reading extra analog sticks)");
engine_handle_dpad = engine_handle_dpad_getaxisvalue;
}
p_AMotionEvent_getButtonState = dlsym(RTLD_DEFAULT,"AMotionEvent_getButtonState");
pad_id1 = -1;
pad_id2 = -1;
return true;
}
static void *android_input_init(const char *joypad_driver)
{
int32_t sdk;
struct android_app *android_app = (struct android_app*)g_android;
android_input_t *android = (android_input_t*)
calloc(1, sizeof(*android));
if (!android)
return NULL;
android->pads_connected = 0;
android->quick_tap_time = 0;
android->joypad = input_joypad_init_driver(joypad_driver, android);
input_keymaps_init_keyboard_lut(rarch_key_map_android);
frontend_android_get_version_sdk(&sdk);
RARCH_LOG("sdk version: %d\n", sdk);
if (sdk >= 19)
engine_lookup_name = android_input_lookup_name;
else
engine_lookup_name = android_input_lookup_name_prekitkat;
engine_handle_dpad = engine_handle_dpad_default;
if (!android_input_init_handle())
{
RARCH_WARN("Unable to open libandroid.so\n");
}
android_app->input_alive = true;
return android;
}
static int android_check_quick_tap(android_input_t *android)
{
/* Check if the touch screen has been been quick tapped
* and then not touched again for 200ms
* If so then return true and deactivate quick tap timer */
retro_time_t now = cpu_features_get_time_usec();
if(android->quick_tap_time && (now/1000 - android->quick_tap_time/1000000) >= 200)
{
android->quick_tap_time = 0;
return 1;
}
return 0;
}
static int16_t android_mouse_state(android_input_t *android, unsigned id)
{
int val = 0;
switch (id)
{
case RETRO_DEVICE_ID_MOUSE_LEFT:
val = android->mouse_l || android_check_quick_tap(android);
break;
case RETRO_DEVICE_ID_MOUSE_RIGHT:
val = android->mouse_r;
break;
case RETRO_DEVICE_ID_MOUSE_MIDDLE:
val = android->mouse_m;
break;
case RETRO_DEVICE_ID_MOUSE_X:
val = android->mouse_x_delta;
android->mouse_x_delta = 0; /* flush delta after it has been read */
break;
case RETRO_DEVICE_ID_MOUSE_Y:
val = android->mouse_y_delta; /* flush delta after it has been read */
android->mouse_y_delta = 0;
break;
}
return val;
}
static int16_t android_lightgun_device_state(android_input_t *android, unsigned id)
{
int val = 0;
switch (id)
{
case RETRO_DEVICE_ID_LIGHTGUN_X:
val = android->mouse_x_delta;
android->mouse_x_delta = 0; /* flush delta after it has been read */
break;
case RETRO_DEVICE_ID_LIGHTGUN_Y:
val = android->mouse_y_delta; /* flush delta after it has been read */
android->mouse_y_delta = 0;
break;
case RETRO_DEVICE_ID_LIGHTGUN_TRIGGER:
val = android->mouse_l || android_check_quick_tap(android);
break;
case RETRO_DEVICE_ID_LIGHTGUN_CURSOR:
val = android->mouse_m;
break;
case RETRO_DEVICE_ID_LIGHTGUN_TURBO:
val = android->mouse_r;
break;
case RETRO_DEVICE_ID_LIGHTGUN_START:
val = android->mouse_m && android->mouse_r;
break;
case RETRO_DEVICE_ID_LIGHTGUN_PAUSE:
val = android->mouse_m && android->mouse_l;
break;
}
return val;
}
static INLINE void android_mouse_calculate_deltas(android_input_t *android,
AInputEvent *event,size_t motion_ptr)
{
/* Adjust mouse speed based on ratio
* between core resolution and system resolution */
float x, y;
float x_scale = 1;
float y_scale = 1;
struct retro_system_av_info *av_info = video_viewport_get_system_av_info();
if(av_info)
{
video_viewport_t *custom_vp = video_viewport_get_custom();
const struct retro_game_geometry *geom = (const struct retro_game_geometry*)&av_info->geometry;
x_scale = 2 * (float)geom->base_width / (float)custom_vp->width;
y_scale = 2 * (float)geom->base_height / (float)custom_vp->height;
}
/* This axis is only available on Android Nougat and on Android devices with NVIDIA extensions */
x = AMotionEvent_getAxisValue(event,AMOTION_EVENT_AXIS_RELATIVE_X, motion_ptr);
y = AMotionEvent_getAxisValue(event,AMOTION_EVENT_AXIS_RELATIVE_Y, motion_ptr);
/* If AXIS_RELATIVE had 0 values it might be because we're not running Android Nougat or on a device
* with NVIDIA extension, so re-calculate deltas based on AXIS_X and AXIS_Y. This has limitations
* compared to AXIS_RELATIVE because once the Android mouse cursor hits the edge of the screen it is
* not possible to move the in-game mouse any further in that direction.
*/
if (!x && !y)
{
x = (AMotionEvent_getX(event, motion_ptr) - android->mouse_x_prev);
y = (AMotionEvent_getY(event, motion_ptr) - android->mouse_y_prev);
android->mouse_x_prev = AMotionEvent_getX(event, motion_ptr);
android->mouse_y_prev = AMotionEvent_getY(event, motion_ptr);
}
android->mouse_x_delta = ceil(x) * x_scale;
android->mouse_y_delta = ceil(y) * y_scale;
}
static INLINE int android_input_poll_event_type_motion(
android_input_t *android, AInputEvent *event,
int port, int source)
{
int getaction, action;
size_t motion_ptr;
bool keyup;
int btn;
/* Only handle events from a touchscreen or mouse */
if (!(source & (AINPUT_SOURCE_TOUCHSCREEN | AINPUT_SOURCE_MOUSE)))
return 1;
getaction = AMotionEvent_getAction(event);
action = getaction & AMOTION_EVENT_ACTION_MASK;
motion_ptr = getaction >> AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT;
keyup = (
action == AMOTION_EVENT_ACTION_UP ||
action == AMOTION_EVENT_ACTION_CANCEL ||
action == AMOTION_EVENT_ACTION_POINTER_UP) ||
(source == AINPUT_SOURCE_MOUSE &&
action != AMOTION_EVENT_ACTION_DOWN);
/* If source is mouse then calculate button state
* and mouse deltas and don't process as touchscreen event */
if (source == AINPUT_SOURCE_MOUSE)
{
/* getButtonState requires API level 14 */
if (p_AMotionEvent_getButtonState)
{
btn = (int)AMotionEvent_getButtonState(event);
android->mouse_l = (btn & AMOTION_EVENT_BUTTON_PRIMARY);
android->mouse_r = (btn & AMOTION_EVENT_BUTTON_SECONDARY);
android->mouse_m = (btn & AMOTION_EVENT_BUTTON_TERTIARY);
}
else
{
/* If getButtonState is not available
* then treat all MotionEvent.ACTION_DOWN as left button presses */
if (action == AMOTION_EVENT_ACTION_DOWN)
android->mouse_l = 1;
if (action == AMOTION_EVENT_ACTION_UP)
android->mouse_l = 0;
}
android_mouse_calculate_deltas(android,event,motion_ptr);
return 0;
}
if (keyup && motion_ptr < MAX_TOUCH)
{
if(action == AMOTION_EVENT_ACTION_UP && ENABLE_TOUCH_SCREEN_MOUSE)
{
/* If touchscreen was pressed for less than 200ms
* then register time stamp of a quick tap */
if((AMotionEvent_getEventTime(event)-AMotionEvent_getDownTime(event))/1000000 < 200)
android->quick_tap_time = AMotionEvent_getEventTime(event);
android->mouse_l = 0;
}
memmove(android->pointer + motion_ptr,
android->pointer + motion_ptr + 1,
(MAX_TOUCH - motion_ptr - 1) * sizeof(struct input_pointer));
if (android->pointer_count > 0)
android->pointer_count--;
}
else
{
int pointer_max = MIN(AMotionEvent_getPointerCount(event), MAX_TOUCH);
if(action == AMOTION_EVENT_ACTION_DOWN && ENABLE_TOUCH_SCREEN_MOUSE)
{
/* When touch screen is pressed, set mouse
* previous position to current position
* before starting to calculate mouse movement deltas. */
android->mouse_x_prev = AMotionEvent_getX(event, motion_ptr);
android->mouse_y_prev = AMotionEvent_getY(event, motion_ptr);
/* If another touch happened within 200ms after a quick tap
* then cancel the quick tap and register left mouse button
* as being held down */
if((AMotionEvent_getEventTime(event) - android->quick_tap_time)/1000000 < 200)
{
android->quick_tap_time = 0;
android->mouse_l = 1;
}
}
if(action == AMOTION_EVENT_ACTION_MOVE && ENABLE_TOUCH_SCREEN_MOUSE)
android_mouse_calculate_deltas(android,event,motion_ptr);
for (motion_ptr = 0; motion_ptr < pointer_max; motion_ptr++)
{
struct video_viewport vp;
float x = AMotionEvent_getX(event, motion_ptr);
float y = AMotionEvent_getY(event, motion_ptr);
vp.x = 0;
vp.y = 0;
vp.width = 0;
vp.height = 0;
vp.full_width = 0;
vp.full_height = 0;
video_driver_translate_coord_viewport_wrap(
&vp,
x, y,
&android->pointer[motion_ptr].x,
&android->pointer[motion_ptr].y,
&android->pointer[motion_ptr].full_x,
&android->pointer[motion_ptr].full_y);
android->pointer_count = MAX(
android->pointer_count,
motion_ptr + 1);
}
}
/* If more than one pointer detected
* then count it as a mouse right click */
if (ENABLE_TOUCH_SCREEN_MOUSE)
android->mouse_r = (android->pointer_count == 2);
return 0;
}
bool is_keyboard_id(int id)
{
for(int i=0; i<kbd_num; i++)
if (id == kbd_id[i]) return true;
return false;
}
static INLINE void android_input_poll_event_type_keyboard(
AInputEvent *event, int keycode, int *handled)
{
int keydown = (AKeyEvent_getAction(event) == AKEY_EVENT_ACTION_DOWN);
unsigned keyboardcode = input_keymaps_translate_keysym_to_rk(keycode);
/* Set keyboard modifier based on shift,ctrl and alt state */
uint16_t mod = 0;
int meta = AKeyEvent_getMetaState(event);
if (meta & AMETA_ALT_ON)
mod |= RETROKMOD_ALT;
if (meta & AMETA_CTRL_ON)
mod |= RETROKMOD_CTRL;
if (meta & AMETA_SHIFT_ON)
mod |= RETROKMOD_SHIFT;
input_keyboard_event(keydown, keyboardcode, keyboardcode, mod, RETRO_DEVICE_KEYBOARD);
if ((keycode == AKEYCODE_VOLUME_UP || keycode == AKEYCODE_VOLUME_DOWN))
*handled = 0;
}
static INLINE void android_input_poll_event_type_key(
struct android_app *android_app,
AInputEvent *event, int port, int keycode, int source,
int type_event, int *handled)
{
uint8_t *buf = android_keyboard_state_get(port);
int action = AKeyEvent_getAction(event);
/* some controllers send both the up and down events at once
* when the button is released for "special" buttons, like menu buttons
* work around that by only using down events for meta keys (which get
* cleared every poll anyway)
*/
switch (action)
{
case AKEY_EVENT_ACTION_UP:
BIT_CLEAR(buf, keycode);
break;
case AKEY_EVENT_ACTION_DOWN:
BIT_SET(buf, keycode);
break;
}
if ((keycode == AKEYCODE_VOLUME_UP || keycode == AKEYCODE_VOLUME_DOWN))
*handled = 0;
}
static int android_input_get_id_port(android_input_t *android, int id,
int source)
{
unsigned i;
int ret = -1;
if (source & (AINPUT_SOURCE_TOUCHSCREEN | AINPUT_SOURCE_MOUSE |
AINPUT_SOURCE_TOUCHPAD))
ret = 0; /* touch overlay is always user 1 */
for (i = 0; i < android->pads_connected; i++)
if (android->pad_states[i].id == id)
ret = i;
return ret;
}
/* Returns the index inside android->pad_state */
static int android_input_get_id_index_from_name(android_input_t *android,
const char *name)
{
int i;
for (i = 0; i < android->pads_connected; i++)
{
if (string_is_equal(name, android->pad_states[i].name))
return i;
}
return -1;
}
static void handle_hotplug(android_input_t *android,
struct android_app *android_app, int *port, int id,
int source)
{
char device_name[256];
char device_model[256];
char name_buf[256];
int vendorId = 0;
int productId = 0;
device_name[0] = device_model[0] = name_buf[0] = '\0';
frontend_android_get_name(device_model, sizeof(device_model));
RARCH_LOG("Device model: (%s).\n", device_model);
if (*port > MAX_PADS)
{
RARCH_ERR("Max number of pads reached.\n");
return;
}
if (!engine_lookup_name(device_name, &vendorId,
&productId, sizeof(device_name), id))
{
RARCH_ERR("Could not look up device name or IDs.\n");
return;
}
/* FIXME - per-device hacks for NVidia Shield, Xperia Play and
* similar devices
*
* These hacks depend on autoconf, but can work with user
* created autoconfs properly
*/
/* NVIDIA Shield Console
* This is the most complicated example, the built-in controller
* has an extra button that can't be used and a remote.
*
* We map the remote for navigation and overwrite whenever a
* real controller is connected.
* Also group the NVIDIA button on the controller with the
* main controller inputs so it's usable. It's mapped to
* menu by default
*
* The NVIDIA button is identified as "Virtual" device when first
* pressed. CEC remote input is also identified as "Virtual" device.
* If a virtual device is detected before a controller then it will
* be assigned to port 0 as "SHIELD Virtual Controller". When a real
* controller is detected it will overwrite the virtual controller
* and be grouped with the NVIDIA button of the virtual device.
*
*/
if(strstr(device_model, "SHIELD Android TV") && (
strstr(device_name, "Virtual") ||
strstr(device_name, "NVIDIA Corporation NVIDIA Controller v01.03")))
{
/* only use the hack if the device is one of the built-in devices */
RARCH_LOG("Special Device Detected: %s\n", device_model);
{
#if 0
RARCH_LOG("- Pads Mapped: %d\n- Device Name: %s\n- IDS: %d, %d, %d",
android->pads_connected, device_name, id, pad_id1, pad_id2);
#endif
/* remove the remote or virtual controller device if it is mapped */
if (strstr(android->pad_states[0].name,"SHIELD Remote") ||
strstr(android->pad_states[0].name,"SHIELD Virtual Controller"))
{
pad_id1 = -1;
pad_id2 = -1;
android->pads_connected = 0;
*port = 0;
strlcpy(name_buf, device_name, sizeof(name_buf));
}
/* if the actual controller has not been mapped yet,
* then configure Virtual device for now */
if (strstr(device_name, "Virtual") && android->pads_connected==0)
strlcpy (name_buf, "SHIELD Virtual Controller", sizeof(name_buf));
else
strlcpy (name_buf, "NVIDIA SHIELD Controller", sizeof(name_buf));
/* apply the hack only for the first controller
* store the id for later use
*/
if (strstr(device_name, "NVIDIA Corporation NVIDIA Controller v01.03")
&& android->pads_connected==0)
pad_id1 = id;
else if (strstr(device_name, "Virtual") && pad_id1 != -1)
{
id = pad_id1;
return;
}
}
}
else if(strstr(device_model, "SHIELD") && (
strstr(device_name, "Virtual") || strstr(device_name, "gpio") ||
strstr(device_name, "NVIDIA Corporation NVIDIA Controller v01.01") ||
strstr(device_name, "NVIDIA Corporation NVIDIA Controller v01.02")))
{
/* only use the hack if the device is one of the built-in devices */
RARCH_LOG("Special Device Detected: %s\n", device_model);
{
if ( pad_id1 < 0 )
pad_id1 = id;
else
pad_id2 = id;
if ( pad_id2 > 0)
return;
strlcpy (name_buf, "NVIDIA SHIELD Portable", sizeof(name_buf));
}
}
else if(strstr(device_model, "SHIELD") && (
strstr(device_name, "Virtual") || strstr(device_name, "gpio") ||
strstr(device_name, "NVIDIA Corporation NVIDIA Controller v01.03")))
{
/* only use the hack if the device is one of the built-in devices */
RARCH_LOG("Special Device Detected: %s\n", device_model);
{
if (strstr(device_name, "NVIDIA Corporation NVIDIA Controller v01.03")
&& android->pads_connected==0)
pad_id1 = id;
else if (strstr(device_name, "Virtual") || strstr(device_name, "gpio"))
{
id = pad_id1;
return;
}
strlcpy (name_buf, "NVIDIA SHIELD Gamepad", sizeof(name_buf));
}
}
/* Other ATV Devices
* Add other common ATV devices that will follow the Android
* Gaempad convention as "Android Gamepad"
*/
/* to-do: add DS4 on Bravia ATV */
else if (strstr(device_name, "NVIDIA"))
strlcpy (name_buf, "Android Gamepad", sizeof(name_buf));
/* GPD XD
* This is a simple hack, basically groups the "back"
* button with the rest of the gamepad
*/
else if(strstr(device_model, "XD") && (
strstr(device_name, "Virtual") || strstr(device_name, "rk29-keypad") ||
strstr(device_name,"Playstation3") || strstr(device_name,"XBOX")))
{
/* only use the hack if the device is one of the built-in devices */
RARCH_LOG("Special Device Detected: %s\n", device_model);
{
if ( pad_id1 < 0 )
pad_id1 = id;
else
pad_id2 = id;
if ( pad_id2 > 0)
return;
strlcpy (name_buf, "GPD XD", sizeof(name_buf));
*port = 0;
}
}
/* XPERIA Play
* This device is composed of two hid devices
* We make it look like one device
*/
else if(strstr(device_model, "R800") &&
(
strstr(device_name, "keypad-game-zeus") ||
strstr(device_name, "keypad-zeus")
)
)
{
/* only use the hack if the device is one of the built-in devices */
RARCH_LOG("Special Device Detected: %s\n", device_model);
{
if ( pad_id1 < 0 )
pad_id1 = id;
else
pad_id2 = id;
if ( pad_id2 > 0)
return;
strlcpy (name_buf, "XPERIA Play", sizeof(name_buf));
*port = 0;
}
}
/* ARCHOS Gamepad
* This device is composed of two hid devices
* We make it look like one device
*/
else if(strstr(device_model, "ARCHOS GAMEPAD") && (
strstr(device_name, "joy_key") || strstr(device_name, "joystick")))
{
/* only use the hack if the device is one of the built-in devices */
RARCH_LOG("ARCHOS GAMEPAD Detected: %s\n", device_model);
{
if ( pad_id1 < 0 )
pad_id1 = id;
else
pad_id2 = id;
if ( pad_id2 > 0)
return;
strlcpy (name_buf, "ARCHOS GamePad", sizeof(name_buf));
*port = 0;
}
}
/* Other uncommon devices
* These are mostly remote control type devices, bind them always to port 0
* And overwrite the binding whenever a controller button is pressed
*/
else if (strstr(device_name, "Amazon Fire TV Remote")
|| strstr(device_name, "Nexus Remote")
|| strstr(device_name, "SHIELD Remote"))
{
android->pads_connected = 0;
*port = 0;
strlcpy(name_buf, device_name, sizeof(name_buf));
}
else if (strstr(device_name, "iControlPad-"))
strlcpy(name_buf, "iControlPad HID Joystick profile", sizeof(name_buf));
else if (strstr(device_name, "TTT THT Arcade console 2P USB Play"))
{
if (*port == 0)
strlcpy(name_buf, "TTT THT Arcade (User 1)", sizeof(name_buf));
else if (*port == 1)
strlcpy(name_buf, "TTT THT Arcade (User 2)", sizeof(name_buf));
}
else if (strstr(device_name, "MOGA"))
strlcpy(name_buf, "Moga IME", sizeof(name_buf));
/* If device is keyboard only and didn't match any of the devices above
* then assume it is a keyboard, register the id, and return unless the
* maximum number of keyboards are already registered. */
else if(source == AINPUT_SOURCE_KEYBOARD && kbd_num < MAX_NUM_KEYBOARDS)
{
kbd_id[kbd_num] = id;
kbd_num++;
return;
}
/* if device was not keyboard only, yet did not match any of the devices
* then try to autoconfigure as gamepad based on device_name. */
else if (!string_is_empty(device_name))
strlcpy(name_buf, device_name, sizeof(name_buf));
if (strstr(android_app->current_ime, "net.obsidianx.android.mogaime"))
strlcpy(name_buf, android_app->current_ime, sizeof(name_buf));
else if (strstr(android_app->current_ime, "com.ccpcreations.android.WiiUseAndroid"))
strlcpy(name_buf, android_app->current_ime, sizeof(name_buf));
else if (strstr(android_app->current_ime, "com.hexad.bluezime"))
strlcpy(name_buf, android_app->current_ime, sizeof(name_buf));
if (*port < 0)
*port = android->pads_connected;
if (!input_autoconfigure_connect(
name_buf,
NULL,
android_joypad.ident,
*port,
vendorId,
productId))
input_config_set_device_name(*port, name_buf);
input_config_set_device_name(*port, name_buf);
android->pad_states[android->pads_connected].id = id;
android->pad_states[android->pads_connected].port = *port;
strlcpy(android->pad_states[*port].name, name_buf,
sizeof(android->pad_states[*port].name));
android->pads_connected++;
}
static int android_input_get_id(AInputEvent *event)
{
int id = AInputEvent_getDeviceId(event);
if (id == pad_id2)
id = pad_id1;
return id;
}
static void android_input_poll_input(void *data)
{
AInputEvent *event = NULL;
struct android_app *android_app = (struct android_app*)g_android;
android_input_t *android = (android_input_t*)data;
/* Read all pending events. */
while (AInputQueue_hasEvents(android_app->inputQueue))
{
while (AInputQueue_getEvent(android_app->inputQueue, &event) >= 0)
{
int32_t handled = 1;
int predispatched = AInputQueue_preDispatchEvent(android_app->inputQueue, event);
int source = AInputEvent_getSource(event);
int type_event = AInputEvent_getType(event);
int id = android_input_get_id(event);
int port = android_input_get_id_port(android, id, source);
if (port < 0 && !is_keyboard_id(id))
handle_hotplug(android, android_app,
&port, id, source);
switch (type_event)
{
case AINPUT_EVENT_TYPE_MOTION:
if (android_input_poll_event_type_motion(android, event,
port, source))
engine_handle_dpad(android, event, port, source);
break;
case AINPUT_EVENT_TYPE_KEY:
{
int keycode = AKeyEvent_getKeyCode(event);
if (is_keyboard_id(id))
{
if (!predispatched)
{
android_input_poll_event_type_keyboard(event, keycode, &handled);
android_input_poll_event_type_key(android_app, event, ANDROID_KEYBOARD_PORT, keycode, source, type_event, &handled);
}
}
else
android_input_poll_event_type_key(android_app,
event, port, keycode, source, type_event, &handled);
}
break;
}
if (!predispatched)
AInputQueue_finishEvent(android_app->inputQueue, event,
handled);
}
}
}
static void android_input_poll_user(void *data)
{
struct android_app *android_app = (struct android_app*)g_android;
android_input_t *android = (android_input_t*)data;
if ((android_app->sensor_state_mask & (UINT64_C(1) <<
RETRO_SENSOR_ACCELEROMETER_ENABLE))
&& android_app->accelerometerSensor)
{
ASensorEvent event;
while (ASensorEventQueue_getEvents(android_app->sensorEventQueue, &event, 1) > 0)
{
android->accelerometer_state.x = event.acceleration.x;
android->accelerometer_state.y = event.acceleration.y;
android->accelerometer_state.z = event.acceleration.z;
}
}
}
static void android_input_poll_memcpy(void *data)
{
unsigned i, j;
android_input_t *android = (android_input_t*)data;
struct android_app *android_app = (struct android_app*)g_android;
for (i = 0; i < MAX_PADS; i++)
{
for (j = 0; j < 2; j++)
android_app->hat_state[i][j] = android->hat_state[i][j];
for (j = 0; j < MAX_AXIS; j++)
android_app->analog_state[i][j] = android->analog_state[i][j];
}
}
static bool android_input_key_pressed(void *data, int key)
{
rarch_joypad_info_t joypad_info;
android_input_t *android = (android_input_t*)data;
const struct retro_keybind *keyptr = (const struct retro_keybind*)
&input_config_binds[0][key];
if( keyptr->valid
&& android_keyboard_port_input_pressed(input_config_binds[0],
key))
return true;
joypad_info.joy_idx = 0;
joypad_info.auto_binds = input_autoconf_binds[0];
joypad_info.axis_threshold = *(input_driver_get_float(INPUT_ACTION_AXIS_THRESHOLD));
if (keyptr->valid &&
input_joypad_pressed(android->joypad, joypad_info,
0, input_config_binds[0], key))
return true;
return false;
}
/* Handle all events. If our activity is in pause state,
* block until we're unpaused.
*/
static void android_input_poll(void *data)
{
int ident;
unsigned key = RARCH_PAUSE_TOGGLE;
struct android_app *android_app = (struct android_app*)g_android;
while ((ident =
ALooper_pollAll((android_input_key_pressed(data, key))
? -1 : 1,
NULL, NULL, NULL)) >= 0)
{
switch (ident)
{
case LOOPER_ID_INPUT:
android_input_poll_input(data);
break;
case LOOPER_ID_USER:
android_input_poll_user(data);
break;
case LOOPER_ID_MAIN:
android_input_poll_main_cmd();
break;
}
if (android_app->destroyRequested != 0)
{
rarch_ctl(RARCH_CTL_SET_SHUTDOWN, NULL);
return;
}
if (android_app->reinitRequested != 0)
{
if (rarch_ctl(RARCH_CTL_IS_PAUSED, NULL))
command_event(CMD_EVENT_REINIT, NULL);
android_app_write_cmd(android_app, APP_CMD_REINIT_DONE);
return;
}
}
if (android_app->input_alive)
android_input_poll_memcpy(data);
}
bool android_run_events(void *data)
{
struct android_app *android_app = (struct android_app*)g_android;
if (ALooper_pollOnce(-1, NULL, NULL, NULL) == LOOPER_ID_MAIN)
android_input_poll_main_cmd();
/* Check if we are exiting. */
if (android_app->destroyRequested != 0)
{
rarch_ctl(RARCH_CTL_SET_SHUTDOWN, NULL);
return false;
}
if (android_app->reinitRequested != 0)
{
if (rarch_ctl(RARCH_CTL_IS_PAUSED, NULL))
command_event(CMD_EVENT_REINIT, NULL);
android_app_write_cmd(android_app, APP_CMD_REINIT_DONE);
}
return true;
}
static int16_t android_input_state(void *data,
rarch_joypad_info_t joypad_info,
const struct retro_keybind **binds, unsigned port, unsigned device,
unsigned idx, unsigned id)
{
android_input_t *android = (android_input_t*)data;
switch (device)
{
case RETRO_DEVICE_JOYPAD:
return input_joypad_pressed(android->joypad, joypad_info,
port, binds[port], id) ||
android_keyboard_port_input_pressed(binds[port],id);
case RETRO_DEVICE_ANALOG:
if (binds[port])
return input_joypad_analog(android->joypad, joypad_info,
port, idx, id, binds[port]);
break;
case RETRO_DEVICE_MOUSE:
return android_mouse_state(android, id);
case RETRO_DEVICE_LIGHTGUN:
return android_lightgun_device_state(android, id);
case RETRO_DEVICE_POINTER:
switch (id)
{
case RETRO_DEVICE_ID_POINTER_X:
return android->pointer[idx].x;
case RETRO_DEVICE_ID_POINTER_Y:
return android->pointer[idx].y;
case RETRO_DEVICE_ID_POINTER_PRESSED:
return (idx < android->pointer_count) &&
(android->pointer[idx].x != -0x8000) &&
(android->pointer[idx].y != -0x8000);
case RARCH_DEVICE_ID_POINTER_BACK:
{
const struct retro_keybind *keyptr = &input_autoconf_binds[0][RARCH_MENU_TOGGLE];
if (keyptr->joykey == 0)
return android_keyboard_input_pressed(AKEYCODE_BACK);
}
}
break;
case RARCH_DEVICE_POINTER_SCREEN:
switch (id)
{
case RETRO_DEVICE_ID_POINTER_X:
return android->pointer[idx].full_x;
case RETRO_DEVICE_ID_POINTER_Y:
return android->pointer[idx].full_y;
case RETRO_DEVICE_ID_POINTER_PRESSED:
return (idx < android->pointer_count) &&
(android->pointer[idx].full_x != -0x8000) &&
(android->pointer[idx].full_y != -0x8000);
case RARCH_DEVICE_ID_POINTER_BACK:
{
const struct retro_keybind *keyptr = &input_autoconf_binds[0][RARCH_MENU_TOGGLE];
if (keyptr->joykey == 0)
return android_keyboard_input_pressed(AKEYCODE_BACK);
}
}
break;
}
return 0;
}
static bool android_input_meta_key_pressed(void *data, int key)
{
return false;
}
static void android_input_free_input(void *data)
{
android_input_t *android = (android_input_t*)data;
struct android_app *android_app = (struct android_app*)g_android;
if (!android)
return;
if (android_app->sensorManager)
ASensorManager_destroyEventQueue(android_app->sensorManager,
android_app->sensorEventQueue);
if (android->joypad)
android->joypad->destroy();
android->joypad = NULL;
android_app->input_alive = false;
dylib_close((dylib_t)libandroid_handle);
libandroid_handle = NULL;
android_keyboard_free();
free(data);
}
static uint64_t android_input_get_capabilities(void *data)
{
(void)data;
return
(1 << RETRO_DEVICE_JOYPAD) |
(1 << RETRO_DEVICE_POINTER) |
(1 << RETRO_DEVICE_KEYBOARD) |
(1 << RETRO_DEVICE_LIGHTGUN) |
(1 << RETRO_DEVICE_ANALOG);
}
static void android_input_enable_sensor_manager(struct android_app *android_app)
{
android_app->sensorManager = ASensorManager_getInstance();
android_app->accelerometerSensor =
ASensorManager_getDefaultSensor(android_app->sensorManager,
ASENSOR_TYPE_ACCELEROMETER);
android_app->sensorEventQueue =
ASensorManager_createEventQueue(android_app->sensorManager,
android_app->looper, LOOPER_ID_USER, NULL, NULL);
}
static bool android_input_set_sensor_state(void *data, unsigned port,
enum retro_sensor_action action, unsigned event_rate)
{
struct android_app *android_app = (struct android_app*)g_android;
if (event_rate == 0)
event_rate = 60;
switch (action)
{
case RETRO_SENSOR_ACCELEROMETER_ENABLE:
if (!android_app->accelerometerSensor)
android_input_enable_sensor_manager(android_app);
if (android_app->accelerometerSensor)
ASensorEventQueue_enableSensor(android_app->sensorEventQueue,
android_app->accelerometerSensor);
/* Events per second (in microseconds). */
if (android_app->accelerometerSensor)
ASensorEventQueue_setEventRate(android_app->sensorEventQueue,
android_app->accelerometerSensor, (1000L / event_rate)
* 1000);
BIT64_CLEAR(android_app->sensor_state_mask, RETRO_SENSOR_ACCELEROMETER_DISABLE);
BIT64_SET(android_app->sensor_state_mask, RETRO_SENSOR_ACCELEROMETER_ENABLE);
return true;
case RETRO_SENSOR_ACCELEROMETER_DISABLE:
if (android_app->accelerometerSensor)
ASensorEventQueue_disableSensor(android_app->sensorEventQueue,
android_app->accelerometerSensor);
BIT64_CLEAR(android_app->sensor_state_mask, RETRO_SENSOR_ACCELEROMETER_ENABLE);
BIT64_SET(android_app->sensor_state_mask, RETRO_SENSOR_ACCELEROMETER_DISABLE);
return true;
default:
return false;
}
return false;
}
static float android_input_get_sensor_input(void *data,
unsigned port,unsigned id)
{
android_input_t *android = (android_input_t*)data;
switch (id)
{
case RETRO_SENSOR_ACCELEROMETER_X:
return android->accelerometer_state.x;
case RETRO_SENSOR_ACCELEROMETER_Y:
return android->accelerometer_state.y;
case RETRO_SENSOR_ACCELEROMETER_Z:
return android->accelerometer_state.z;
}
return 0;
}
static const input_device_driver_t *android_input_get_joypad_driver(void *data)
{
android_input_t *android = (android_input_t*)data;
if (!android)
return NULL;
return android->joypad;
}
static bool android_input_keyboard_mapping_is_blocked(void *data)
{
android_input_t *android = (android_input_t*)data;
if (!android)
return false;
return android->blocked;
}
static void android_input_keyboard_mapping_set_block(void *data, bool value)
{
android_input_t *android = (android_input_t*)data;
if (!android)
return;
android->blocked = value;
}
static void android_input_grab_mouse(void *data, bool state)
{
(void)data;
(void)state;
}
static bool android_input_set_rumble(void *data, unsigned port,
enum retro_rumble_effect effect, uint16_t strength)
{
(void)data;
(void)port;
(void)effect;
(void)strength;
return false;
}
input_driver_t input_android = {
android_input_init,
android_input_poll,
android_input_state,
android_input_meta_key_pressed,
android_input_free_input,
android_input_set_sensor_state,
android_input_get_sensor_input,
android_input_get_capabilities,
"android",
android_input_grab_mouse,
NULL,
android_input_set_rumble,
android_input_get_joypad_driver,
NULL,
android_input_keyboard_mapping_is_blocked,
android_input_keyboard_mapping_set_block,
};
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