mirror of
https://github.com/libretro/RetroArch.git
synced 2024-11-25 00:49:47 +00:00
141 lines
3.8 KiB
C
141 lines
3.8 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
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* Copyright (C) 2011-2015 - Daniel De Matteis
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* Copyright (C) 2012-2015 - Michael Lelli
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* Copyright (C) 2013-2014 - Steven Crowe
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*
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* RetroArch is free software: you can redistribute it and/or modify it under the terms
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* of the GNU General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with RetroArch.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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static const char *android_joypad_name(unsigned pad)
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{
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settings_t *settings = config_get_ptr();
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return settings ? settings->input.device_names[pad] : NULL;
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}
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static bool android_joypad_init(void *data)
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{
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engine_handle_dpad = engine_handle_dpad_default;
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if ((dlopen("/system/lib/libandroid.so", RTLD_LOCAL | RTLD_LAZY)) == 0)
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{
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RARCH_WARN("Unable to open libandroid.so\n");
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return true;
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}
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if ((p_AMotionEvent_getAxisValue = dlsym(RTLD_DEFAULT,
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"AMotionEvent_getAxisValue")))
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{
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RARCH_LOG("Set engine_handle_dpad to 'Get Axis Value' (for reading extra analog sticks)");
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engine_handle_dpad = engine_handle_dpad_getaxisvalue;
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}
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return true;
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}
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static bool android_joypad_button(unsigned port, uint16_t joykey)
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{
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uint8_t *buf = NULL;
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driver_t *driver = driver_get_ptr();
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android_input_t *android = driver ? (android_input_t*)driver->input_data : NULL;
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if (!android || port >= MAX_PADS)
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return false;
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buf = android->pad_state[port];
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if (GET_HAT_DIR(joykey))
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{
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unsigned h = GET_HAT(joykey);
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if (h > 0)
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return false;
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switch (GET_HAT_DIR(joykey))
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{
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case HAT_LEFT_MASK:
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return android->hat_state[port][0] == -1;
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case HAT_RIGHT_MASK:
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return android->hat_state[port][0] == 1;
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case HAT_UP_MASK:
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return android->hat_state[port][1] == -1;
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case HAT_DOWN_MASK:
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return android->hat_state[port][1] == 1;
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default:
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return false;
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}
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}
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return joykey < LAST_KEYCODE && BIT_GET(buf, joykey);
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}
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static int16_t android_joypad_axis(unsigned port, uint32_t joyaxis)
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{
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int val = 0;
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int axis = -1;
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bool is_neg = false;
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bool is_pos = false;
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driver_t *driver = driver_get_ptr();
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android_input_t *android = driver ? (android_input_t*)driver->input_data : NULL;
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if (!android || joyaxis == AXIS_NONE || port >= MAX_PADS)
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return 0;
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if (AXIS_NEG_GET(joyaxis) < MAX_AXIS)
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{
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axis = AXIS_NEG_GET(joyaxis);
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is_neg = true;
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}
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else if (AXIS_POS_GET(joyaxis) < MAX_AXIS)
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{
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axis = AXIS_POS_GET(joyaxis);
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is_pos = true;
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}
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val = android->analog_state[port][axis];
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if (is_neg && val > 0)
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val = 0;
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else if (is_pos && val < 0)
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val = 0;
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return val;
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}
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static void android_joypad_poll(void)
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{
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}
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static bool android_joypad_query_pad(unsigned pad)
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{
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driver_t *driver = driver_get_ptr();
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android_input_t *android = driver ? (android_input_t*)driver->input_data : NULL;
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return (pad < MAX_USERS && pad < android->pads_connected);
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}
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static void android_joypad_destroy(void)
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{
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}
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input_device_driver_t android_joypad = {
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android_joypad_init,
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android_joypad_query_pad,
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android_joypad_destroy,
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android_joypad_button,
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NULL,
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android_joypad_axis,
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android_joypad_poll,
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NULL,
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android_joypad_name,
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"android",
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};
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