mirror of
https://github.com/libretro/RetroArch.git
synced 2024-11-28 18:50:29 +00:00
410 lines
10 KiB
C
410 lines
10 KiB
C
/* RetroArch - A frontend for libretro.
|
|
* Copyright (C) 2010-2012 - Hans-Kristian Arntzen
|
|
*
|
|
* 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 "../driver.h"
|
|
|
|
#include "../gfx/gfx_context.h"
|
|
#include "../boolean.h"
|
|
#include "../general.h"
|
|
#include <stdint.h>
|
|
#include <stdlib.h>
|
|
#include "../libretro.h"
|
|
#include "rarch_sdl_input.h"
|
|
#include "keysym.h"
|
|
|
|
struct key_bind
|
|
{
|
|
unsigned sdl;
|
|
enum rarch_key sk;
|
|
};
|
|
|
|
static unsigned keysym_lut[SK_LAST];
|
|
static const struct key_bind lut_binds[] = {
|
|
{ SDLK_LEFT, SK_LEFT },
|
|
{ SDLK_RIGHT, SK_RIGHT },
|
|
{ SDLK_UP, SK_UP },
|
|
{ SDLK_DOWN, SK_DOWN },
|
|
{ SDLK_RETURN, SK_RETURN },
|
|
{ SDLK_TAB, SK_TAB },
|
|
{ SDLK_INSERT, SK_INSERT },
|
|
{ SDLK_DELETE, SK_DELETE },
|
|
{ SDLK_RSHIFT, SK_RSHIFT },
|
|
{ SDLK_LSHIFT, SK_LSHIFT },
|
|
{ SDLK_LCTRL, SK_LCTRL },
|
|
{ SDLK_END, SK_END },
|
|
{ SDLK_HOME, SK_HOME },
|
|
{ SDLK_PAGEDOWN, SK_PAGEDOWN },
|
|
{ SDLK_PAGEUP, SK_PAGEUP },
|
|
{ SDLK_LALT, SK_LALT },
|
|
{ SDLK_SPACE, SK_SPACE },
|
|
{ SDLK_ESCAPE, SK_ESCAPE },
|
|
{ SDLK_BACKSPACE, SK_BACKSPACE },
|
|
{ SDLK_KP_ENTER, SK_KP_ENTER },
|
|
{ SDLK_KP_PLUS, SK_KP_PLUS },
|
|
{ SDLK_KP_MINUS, SK_KP_MINUS },
|
|
{ SDLK_KP_MULTIPLY, SK_KP_MULTIPLY },
|
|
{ SDLK_KP_DIVIDE, SK_KP_DIVIDE },
|
|
{ SDLK_BACKQUOTE, SK_BACKQUOTE },
|
|
{ SDLK_PAUSE, SK_PAUSE },
|
|
{ SDLK_KP0, SK_KP0 },
|
|
{ SDLK_KP1, SK_KP1 },
|
|
{ SDLK_KP2, SK_KP2 },
|
|
{ SDLK_KP3, SK_KP3 },
|
|
{ SDLK_KP4, SK_KP4 },
|
|
{ SDLK_KP5, SK_KP5 },
|
|
{ SDLK_KP6, SK_KP6 },
|
|
{ SDLK_KP7, SK_KP7 },
|
|
{ SDLK_KP8, SK_KP8 },
|
|
{ SDLK_KP9, SK_KP9 },
|
|
{ SDLK_0, SK_0 },
|
|
{ SDLK_1, SK_1 },
|
|
{ SDLK_2, SK_2 },
|
|
{ SDLK_3, SK_3 },
|
|
{ SDLK_4, SK_4 },
|
|
{ SDLK_5, SK_5 },
|
|
{ SDLK_6, SK_6 },
|
|
{ SDLK_7, SK_7 },
|
|
{ SDLK_8, SK_8 },
|
|
{ SDLK_9, SK_9 },
|
|
{ SDLK_F1, SK_F1 },
|
|
{ SDLK_F2, SK_F2 },
|
|
{ SDLK_F3, SK_F3 },
|
|
{ SDLK_F4, SK_F4 },
|
|
{ SDLK_F5, SK_F5 },
|
|
{ SDLK_F6, SK_F6 },
|
|
{ SDLK_F7, SK_F7 },
|
|
{ SDLK_F8, SK_F8 },
|
|
{ SDLK_F9, SK_F9 },
|
|
{ SDLK_F10, SK_F10 },
|
|
{ SDLK_F11, SK_F11 },
|
|
{ SDLK_F12, SK_F12 },
|
|
{ SDLK_a, SK_a },
|
|
{ SDLK_b, SK_b },
|
|
{ SDLK_c, SK_c },
|
|
{ SDLK_d, SK_d },
|
|
{ SDLK_e, SK_e },
|
|
{ SDLK_f, SK_f },
|
|
{ SDLK_g, SK_g },
|
|
{ SDLK_h, SK_h },
|
|
{ SDLK_i, SK_i },
|
|
{ SDLK_j, SK_j },
|
|
{ SDLK_k, SK_k },
|
|
{ SDLK_l, SK_l },
|
|
{ SDLK_m, SK_m },
|
|
{ SDLK_n, SK_n },
|
|
{ SDLK_o, SK_o },
|
|
{ SDLK_p, SK_p },
|
|
{ SDLK_q, SK_q },
|
|
{ SDLK_r, SK_r },
|
|
{ SDLK_s, SK_s },
|
|
{ SDLK_t, SK_t },
|
|
{ SDLK_u, SK_u },
|
|
{ SDLK_v, SK_v },
|
|
{ SDLK_w, SK_w },
|
|
{ SDLK_x, SK_x },
|
|
{ SDLK_y, SK_y },
|
|
{ SDLK_z, SK_z },
|
|
};
|
|
|
|
static void init_lut(void)
|
|
{
|
|
memset(keysym_lut, 0, sizeof(keysym_lut));
|
|
for (unsigned i = 0; i < sizeof(lut_binds) / sizeof(lut_binds[0]); i++)
|
|
keysym_lut[lut_binds[i].sk] = lut_binds[i].sdl;
|
|
}
|
|
|
|
static void *sdl_input_init(void)
|
|
{
|
|
init_lut();
|
|
sdl_input_t *sdl = (sdl_input_t*)calloc(1, sizeof(*sdl));
|
|
if (!sdl)
|
|
return NULL;
|
|
|
|
#ifdef HAVE_DINPUT
|
|
sdl->di = sdl_dinput_init();
|
|
if (!sdl->di)
|
|
{
|
|
free(sdl);
|
|
RARCH_ERR("Failed to init SDL/DInput.\n");
|
|
return NULL;
|
|
}
|
|
#else
|
|
if (SDL_Init(SDL_INIT_JOYSTICK) < 0)
|
|
return NULL;
|
|
|
|
SDL_JoystickEventState(SDL_IGNORE);
|
|
sdl->num_joysticks = SDL_NumJoysticks();
|
|
|
|
for (unsigned i = 0; i < MAX_PLAYERS; i++)
|
|
{
|
|
if (g_settings.input.joypad_map[i] < 0)
|
|
continue;
|
|
|
|
unsigned port = g_settings.input.joypad_map[i];
|
|
|
|
if (sdl->num_joysticks <= port)
|
|
continue;
|
|
|
|
sdl->joysticks[i] = SDL_JoystickOpen(port);
|
|
if (!sdl->joysticks[i])
|
|
{
|
|
RARCH_ERR("Couldn't open SDL joystick #%u on SNES port %u\n", port, i + 1);
|
|
free(sdl);
|
|
SDL_QuitSubSystem(SDL_INIT_JOYSTICK);
|
|
return NULL;
|
|
}
|
|
|
|
RARCH_LOG("Opened Joystick: %s (#%u) on port %u\n",
|
|
SDL_JoystickName(port), port, i + 1);
|
|
|
|
sdl->num_axes[i] = SDL_JoystickNumAxes(sdl->joysticks[i]);
|
|
sdl->num_buttons[i] = SDL_JoystickNumButtons(sdl->joysticks[i]);
|
|
sdl->num_hats[i] = SDL_JoystickNumHats(sdl->joysticks[i]);
|
|
RARCH_LOG("Joypad has: %u axes, %u buttons, %u hats.\n",
|
|
sdl->num_axes[i], sdl->num_buttons[i], sdl->num_hats[i]);
|
|
}
|
|
#endif
|
|
|
|
sdl->use_keyboard = true;
|
|
return sdl;
|
|
}
|
|
|
|
static bool sdl_key_pressed(int key)
|
|
{
|
|
return gfx_ctx_key_pressed(keysym_lut[key]);
|
|
}
|
|
|
|
#ifndef HAVE_DINPUT
|
|
static bool sdl_joykey_pressed(sdl_input_t *sdl, int port_num, uint16_t joykey)
|
|
{
|
|
if (joykey == NO_BTN)
|
|
return false;
|
|
|
|
// Check hat.
|
|
if (GET_HAT_DIR(joykey))
|
|
{
|
|
uint16_t hat = GET_HAT(joykey);
|
|
if (hat >= sdl->num_hats[port_num])
|
|
return false;
|
|
|
|
Uint8 dir = SDL_JoystickGetHat(sdl->joysticks[port_num], hat);
|
|
switch (GET_HAT_DIR(joykey))
|
|
{
|
|
case HAT_UP_MASK:
|
|
return dir & SDL_HAT_UP;
|
|
case HAT_DOWN_MASK:
|
|
return dir & SDL_HAT_DOWN;
|
|
case HAT_LEFT_MASK:
|
|
return dir & SDL_HAT_LEFT;
|
|
case HAT_RIGHT_MASK:
|
|
return dir & SDL_HAT_RIGHT;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
else // Check the button
|
|
{
|
|
if (joykey < sdl->num_buttons[port_num] && SDL_JoystickGetButton(sdl->joysticks[port_num], joykey))
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
}
|
|
|
|
static bool sdl_axis_pressed(sdl_input_t *sdl, int port_num, uint32_t joyaxis)
|
|
{
|
|
if (joyaxis == AXIS_NONE)
|
|
return false;
|
|
|
|
if (AXIS_NEG_GET(joyaxis) < sdl->num_axes[port_num])
|
|
{
|
|
Sint16 val = SDL_JoystickGetAxis(sdl->joysticks[port_num], AXIS_NEG_GET(joyaxis));
|
|
float scaled = (float)val / 0x8000;
|
|
if (scaled < -g_settings.input.axis_threshold)
|
|
return true;
|
|
}
|
|
if (AXIS_POS_GET(joyaxis) < sdl->num_axes[port_num])
|
|
{
|
|
Sint16 val = SDL_JoystickGetAxis(sdl->joysticks[port_num], AXIS_POS_GET(joyaxis));
|
|
float scaled = (float)val / 0x8000;
|
|
if (scaled > g_settings.input.axis_threshold)
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
#endif
|
|
|
|
static bool sdl_is_pressed(sdl_input_t *sdl, unsigned port_num, const struct snes_keybind *key)
|
|
{
|
|
if (sdl->use_keyboard && sdl_key_pressed(key->key))
|
|
return true;
|
|
|
|
#ifdef HAVE_DINPUT
|
|
return sdl_dinput_pressed(sdl->di, port_num, key);
|
|
#else
|
|
if (sdl->joysticks[port_num] == NULL)
|
|
return false;
|
|
if (sdl_joykey_pressed(sdl, port_num, key->joykey))
|
|
return true;
|
|
if (sdl_axis_pressed(sdl, port_num, key->joyaxis))
|
|
return true;
|
|
#endif
|
|
|
|
return false;
|
|
}
|
|
|
|
static bool sdl_bind_button_pressed(void *data, int key)
|
|
{
|
|
const struct snes_keybind *binds = g_settings.input.binds[0];
|
|
if (key >= 0 && key < RARCH_BIND_LIST_END)
|
|
{
|
|
const struct snes_keybind *bind = &binds[key];
|
|
return sdl_is_pressed((sdl_input_t*)data, 0, bind);
|
|
}
|
|
else
|
|
return false;
|
|
}
|
|
|
|
static int16_t sdl_joypad_device_state(sdl_input_t *sdl, const struct snes_keybind **binds_,
|
|
unsigned port_num, unsigned id)
|
|
{
|
|
const struct snes_keybind *binds = binds_[port_num];
|
|
if (id < RARCH_BIND_LIST_END)
|
|
{
|
|
const struct snes_keybind *bind = &binds[id];
|
|
return bind->valid ? (sdl_is_pressed(sdl, port_num, bind) ? 1 : 0) : 0;
|
|
}
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
static int16_t sdl_mouse_device_state(sdl_input_t *sdl, unsigned id)
|
|
{
|
|
switch (id)
|
|
{
|
|
case RETRO_DEVICE_ID_MOUSE_LEFT:
|
|
return sdl->mouse_l;
|
|
case RETRO_DEVICE_ID_MOUSE_RIGHT:
|
|
return sdl->mouse_r;
|
|
case RETRO_DEVICE_ID_MOUSE_X:
|
|
return sdl->mouse_x;
|
|
case RETRO_DEVICE_ID_MOUSE_Y:
|
|
return sdl->mouse_y;
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static int16_t sdl_lightgun_device_state(sdl_input_t *sdl, unsigned id)
|
|
{
|
|
switch (id)
|
|
{
|
|
case RETRO_DEVICE_ID_LIGHTGUN_X:
|
|
return sdl->mouse_x;
|
|
case RETRO_DEVICE_ID_LIGHTGUN_Y:
|
|
return sdl->mouse_y;
|
|
case RETRO_DEVICE_ID_LIGHTGUN_TRIGGER:
|
|
return sdl->mouse_l;
|
|
case RETRO_DEVICE_ID_LIGHTGUN_CURSOR:
|
|
return sdl->mouse_m;
|
|
case RETRO_DEVICE_ID_LIGHTGUN_TURBO:
|
|
return sdl->mouse_r;
|
|
case RETRO_DEVICE_ID_LIGHTGUN_START:
|
|
return sdl->mouse_m && sdl->mouse_r;
|
|
case RETRO_DEVICE_ID_LIGHTGUN_PAUSE:
|
|
return sdl->mouse_m && sdl->mouse_l;
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static int16_t sdl_input_state(void *data_, const struct snes_keybind **binds, unsigned port, unsigned device, unsigned index, unsigned id)
|
|
{
|
|
sdl_input_t *data = (sdl_input_t*)data_;
|
|
switch (device)
|
|
{
|
|
case RETRO_DEVICE_JOYPAD:
|
|
return sdl_joypad_device_state(data, binds, port, id);
|
|
case RETRO_DEVICE_MOUSE:
|
|
return sdl_mouse_device_state(data, id);
|
|
case RETRO_DEVICE_LIGHTGUN:
|
|
return sdl_lightgun_device_state(data, id);
|
|
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static void sdl_input_free(void *data)
|
|
{
|
|
if (data)
|
|
{
|
|
// Flush out all pending events.
|
|
SDL_Event event;
|
|
while (SDL_PollEvent(&event));
|
|
|
|
sdl_input_t *sdl = (sdl_input_t*)data;
|
|
|
|
#ifdef HAVE_DINPUT
|
|
sdl_dinput_free(sdl->di);
|
|
#else
|
|
for (int i = 0; i < MAX_PLAYERS; i++)
|
|
{
|
|
if (sdl->joysticks[i])
|
|
SDL_JoystickClose(sdl->joysticks[i]);
|
|
}
|
|
SDL_QuitSubSystem(SDL_INIT_JOYSTICK);
|
|
#endif
|
|
|
|
free(data);
|
|
}
|
|
}
|
|
|
|
static void sdl_poll_mouse(sdl_input_t *sdl)
|
|
{
|
|
int _x, _y;
|
|
Uint8 btn = SDL_GetRelativeMouseState(&_x, &_y);
|
|
sdl->mouse_x = _x;
|
|
sdl->mouse_y = _y;
|
|
sdl->mouse_l = SDL_BUTTON(SDL_BUTTON_LEFT) & btn ? 1 : 0;
|
|
sdl->mouse_r = SDL_BUTTON(SDL_BUTTON_RIGHT) & btn ? 1 : 0;
|
|
sdl->mouse_m = SDL_BUTTON(SDL_BUTTON_MIDDLE) & btn ? 1 : 0;
|
|
}
|
|
|
|
static void sdl_input_poll(void *data)
|
|
{
|
|
SDL_PumpEvents();
|
|
sdl_input_t *sdl = (sdl_input_t*)data;
|
|
|
|
#ifdef HAVE_DINPUT
|
|
sdl_dinput_poll(sdl->di);
|
|
#else
|
|
SDL_JoystickUpdate();
|
|
#endif
|
|
|
|
sdl_poll_mouse(sdl);
|
|
}
|
|
|
|
const input_driver_t input_sdl = {
|
|
sdl_input_init,
|
|
sdl_input_poll,
|
|
sdl_input_state,
|
|
sdl_bind_button_pressed,
|
|
sdl_input_free,
|
|
"sdl"
|
|
};
|
|
|