mirror of
https://github.com/libretro/RetroArch.git
synced 2024-12-04 22:46:46 +00:00
195 lines
5.2 KiB
C
195 lines
5.2 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2010-2014 - Michael Lelli
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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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#include "input_common.h"
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#include "../driver.h"
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#include "../boolean.h"
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#include "../general.h"
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#include "keyboard_line.h"
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#include "../emscripten/RWebInput.h"
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static bool uninited = false;
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typedef struct rwebinput_input
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{
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rwebinput_state_t state;
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int context;
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} rwebinput_input_t;
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static void *rwebinput_input_init(void)
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{
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rwebinput_input_t *rwebinput = (rwebinput_input_t*)calloc(1, sizeof(*rwebinput));
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if (!rwebinput)
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return NULL;
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rwebinput->context = RWebInputInit();
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if (!rwebinput->context)
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{
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free(rwebinput);
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return NULL;
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}
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input_init_keyboard_lut(rarch_key_map_rwebinput);
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return rwebinput;
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}
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static bool rwebinput_key_pressed(rwebinput_input_t *rwebinput, int key)
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{
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if (key >= RETROK_LAST)
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return false;
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unsigned sym = input_translate_rk_to_keysym((enum retro_key)key);
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bool ret = rwebinput->state.keys[sym >> 3] & (1 << (sym & 7));
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return ret;
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}
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static bool rwebinput_is_pressed(rwebinput_input_t *rwebinput, const struct retro_keybind *binds, unsigned id)
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{
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if (id < RARCH_BIND_LIST_END)
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{
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const struct retro_keybind *bind = &binds[id];
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return bind->valid && rwebinput_key_pressed(rwebinput, binds[id].key);
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}
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else
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return false;
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}
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static bool rwebinput_bind_button_pressed(void *data, int key)
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{
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rwebinput_input_t *rwebinput = (rwebinput_input_t*)data;
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return rwebinput_is_pressed(rwebinput, g_settings.input.binds[0], key);
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}
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static int16_t rwebinput_mouse_state(rwebinput_input_t *rwebinput, unsigned id)
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{
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switch (id)
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{
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case RETRO_DEVICE_ID_MOUSE_X:
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return (int16_t) rwebinput->state.mouse_x;
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case RETRO_DEVICE_ID_MOUSE_Y:
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return (int16_t) rwebinput->state.mouse_y;
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case RETRO_DEVICE_ID_MOUSE_LEFT:
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return rwebinput->state.mouse_l;
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case RETRO_DEVICE_ID_MOUSE_RIGHT:
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return rwebinput->state.mouse_r;
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default:
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return 0;
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}
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}
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static int16_t rwebinput_analog_pressed(rwebinput_input_t *rwebinput, const struct retro_keybind *binds, unsigned index, unsigned id)
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{
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unsigned id_minus = 0;
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unsigned id_plus = 0;
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input_conv_analog_id_to_bind_id(index, id, &id_minus, &id_plus);
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int16_t pressed_minus = rwebinput_is_pressed(rwebinput, binds, id_minus) ? -0x7fff : 0;
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int16_t pressed_plus = rwebinput_is_pressed(rwebinput, binds, id_plus) ? 0x7fff : 0;
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return pressed_plus + pressed_minus;
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}
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static int16_t rwebinput_input_state(void *data, const struct retro_keybind **binds, unsigned port, unsigned device, unsigned index, unsigned id)
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{
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rwebinput_input_t *rwebinput = (rwebinput_input_t*)data;
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switch (device)
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{
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case RETRO_DEVICE_JOYPAD:
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return rwebinput_is_pressed(rwebinput, binds[port], id);
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case RETRO_DEVICE_ANALOG:
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return rwebinput_analog_pressed(rwebinput, binds[port], index, id);
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case RETRO_DEVICE_KEYBOARD:
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return rwebinput_key_pressed(rwebinput, id);
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case RETRO_DEVICE_MOUSE:
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return rwebinput_mouse_state(rwebinput, id);
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default:
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return 0;
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}
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}
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static void rwebinput_input_free(void *data)
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{
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rwebinput_input_t *rwebinput = (rwebinput_input_t*)data;
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uninited = true;
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RWebInputDestroy(rwebinput->context);
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free(data);
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}
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static void rwebinput_input_poll(void *data)
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{
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rwebinput_input_t *rwebinput = (rwebinput_input_t*)data;
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rwebinput_state_t *state = RWebInputPoll(rwebinput->context);
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// get new keys
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for (unsigned i = 0; i < 32; i++)
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{
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if (state->keys[i] != rwebinput->state.keys[i])
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{
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uint8_t diff = state->keys[i] ^ rwebinput->state.keys[i];
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for (unsigned k = 0; diff; diff >>= 1, k++)
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{
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if (diff & 1)
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{
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input_keyboard_event((state->keys[i] & (1 << k)) != 0, input_translate_keysym_to_rk(i * 8 + k), 0, 0);
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}
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}
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}
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}
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memcpy(&rwebinput->state, state, sizeof(rwebinput->state));
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}
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static void rwebinput_grab_mouse(void *data, bool state)
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{
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(void)data;
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(void)state;
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}
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static uint64_t rwebinput_get_capabilities(void *data)
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{
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uint64_t caps = 0;
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caps |= (1 << RETRO_DEVICE_JOYPAD);
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caps |= (1 << RETRO_DEVICE_ANALOG);
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caps |= (1 << RETRO_DEVICE_KEYBOARD);
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caps |= (1 << RETRO_DEVICE_MOUSE);
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return caps;
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}
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input_driver_t input_rwebinput = {
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rwebinput_input_init,
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rwebinput_input_poll,
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rwebinput_input_state,
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rwebinput_bind_button_pressed,
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rwebinput_input_free,
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NULL,
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NULL,
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rwebinput_get_capabilities,
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"rwebinput",
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rwebinput_grab_mouse,
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};
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