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RetroArch/input/drivers/dinput.c

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/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
* Copyright (C) 2011-2016 - Daniel De Matteis
*
* 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/>.
*/
#ifdef _MSC_VER
#pragma comment(lib, "dinput8")
#endif
#undef DIRECTINPUT_VERSION
#define DIRECTINPUT_VERSION 0x0800
#ifndef WM_MOUSEHWHEEL
#define WM_MOUSEHWHEEL 0x20e
#endif
#ifndef WM_MOUSEWHEEL
#define WM_MOUSEWHEEL 0x020A
#endif
#include <dinput.h>
#include <stdlib.h>
#include <stddef.h>
#include <string.h>
#include <boolean.h>
#include <windowsx.h>
#ifdef HAVE_CONFIG_H
#include "../../config.h"
#endif
#include "../../configuration.h"
#include "../../verbosity.h"
#include "../../tasks/tasks_internal.h"
#include "../../gfx/video_driver.h"
#include "../input_config.h"
#include "../input_joypad_driver.h"
#include "../input_keymaps.h"
/* Keep track of which pad indexes are 360 controllers.
* Not static, will be read in xinput_joypad.c
* -1 = not xbox pad, otherwise 0..3
*/
int g_xinput_pad_indexes[MAX_USERS];
bool g_xinput_block_pads;
/* Context has to be global as joypads also ride on this context. */
LPDIRECTINPUT8 g_dinput_ctx;
struct pointer_status
{
int pointer_id;
int pointer_x;
int pointer_y;
struct pointer_status *next;
};
struct dinput_input
{
bool blocked;
LPDIRECTINPUTDEVICE8 keyboard;
LPDIRECTINPUTDEVICE8 mouse;
const input_device_driver_t *joypad;
uint8_t state[256];
int window_pos_x;
int window_pos_y;
int mouse_x;
int mouse_last_x;
int mouse_y;
int mouse_last_y;
bool mouse_l, mouse_r, mouse_m, mouse_wu, mouse_wd, mouse_hwu, mouse_hwd;
struct pointer_status pointer_head; /* dummy head for easier iteration */
};
void dinput_destroy_context(void)
{
if (!g_dinput_ctx)
return;
IDirectInput8_Release(g_dinput_ctx);
g_dinput_ctx = NULL;
}
bool dinput_init_context(void)
{
bool context_initialized = false;
if (g_dinput_ctx)
return true;
CoInitialize(NULL);
/* Who said we shouldn't have same call signature in a COM API? <_< */
#ifdef __cplusplus
context_initialized = (SUCCEEDED(DirectInput8Create(
GetModuleHandle(NULL), DIRECTINPUT_VERSION, IID_IDirectInput8,
(void**)&g_dinput_ctx, NULL)));
#else
context_initialized = (SUCCEEDED(DirectInput8Create(
GetModuleHandle(NULL), DIRECTINPUT_VERSION, &IID_IDirectInput8,
(void**)&g_dinput_ctx, NULL)));
#endif
if (!context_initialized)
goto error;
return true;
error:
RARCH_ERR("Failed to initialize DirectInput.\n");
return false;
}
static void *dinput_init(void)
{
struct dinput_input *di = NULL;
settings_t *settings = config_get_ptr();
if (!dinput_init_context())
{
RARCH_ERR("Failed to start DirectInput driver.\n");
return NULL;
}
di = (struct dinput_input*)calloc(1, sizeof(*di));
if (!di)
return NULL;
#ifdef __cplusplus
if (FAILED(IDirectInput8_CreateDevice(g_dinput_ctx, GUID_SysKeyboard, &di->keyboard, NULL)))
{
RARCH_ERR("Failed to create keyboard device.\n");
di->keyboard = NULL;
}
if (FAILED(IDirectInput8_CreateDevice(g_dinput_ctx, GUID_SysMouse, &di->mouse, NULL)))
{
RARCH_ERR("Failed to create mouse device.\n");
di->mouse = NULL;
}
#else
if (FAILED(IDirectInput8_CreateDevice(g_dinput_ctx, &GUID_SysKeyboard, &di->keyboard, NULL)))
{
RARCH_ERR("Failed to create keyboard device.\n");
di->keyboard = NULL;
}
if (FAILED(IDirectInput8_CreateDevice(g_dinput_ctx, &GUID_SysMouse, &di->mouse, NULL)))
{
RARCH_ERR("Failed to create mouse device.\n");
di->mouse = NULL;
}
#endif
if (di->keyboard)
{
IDirectInputDevice8_SetDataFormat(di->keyboard, &c_dfDIKeyboard);
IDirectInputDevice8_SetCooperativeLevel(di->keyboard,
(HWND)video_driver_window_get(), DISCL_NONEXCLUSIVE | DISCL_FOREGROUND);
IDirectInputDevice8_Acquire(di->keyboard);
}
if (di->mouse)
{
DIDATAFORMAT c_dfDIMouse2_custom = c_dfDIMouse2;
c_dfDIMouse2_custom.dwFlags = DIDF_ABSAXIS;
IDirectInputDevice8_SetDataFormat(di->mouse, &c_dfDIMouse2_custom);
IDirectInputDevice8_SetCooperativeLevel(di->mouse, (HWND)video_driver_window_get(),
DISCL_NONEXCLUSIVE | DISCL_FOREGROUND);
IDirectInputDevice8_Acquire(di->mouse);
}
input_keymaps_init_keyboard_lut(rarch_key_map_dinput);
di->joypad = input_joypad_init_driver(settings->input.joypad_driver, di);
return di;
}
#if __cplusplus
extern "C" {
#endif
bool doubleclick_on_titlebar_pressed(void);
void unset_doubleclick_on_titlebar(void);
#if __cplusplus
}
#endif
static void dinput_poll(void *data)
{
struct dinput_input *di = (struct dinput_input*)data;
if (!di)
return;
memset(di->state, 0, sizeof(di->state));
if (di->keyboard)
{
if (FAILED(IDirectInputDevice8_GetDeviceState(
di->keyboard, sizeof(di->state), di->state)))
{
IDirectInputDevice8_Acquire(di->keyboard);
if (FAILED(IDirectInputDevice8_GetDeviceState(
di->keyboard, sizeof(di->state), di->state)))
memset(di->state, 0, sizeof(di->state));
}
}
if (di->mouse)
{
DIMOUSESTATE2 mouse_state;
memset(&mouse_state, 0, sizeof(mouse_state));
if (FAILED(IDirectInputDevice8_GetDeviceState(
di->mouse, sizeof(mouse_state), &mouse_state)))
{
IDirectInputDevice8_Acquire(di->mouse);
if (FAILED(IDirectInputDevice8_GetDeviceState(
di->mouse, sizeof(mouse_state), &mouse_state)))
memset(&mouse_state, 0, sizeof(mouse_state));
}
di->mouse_last_x = di->mouse_x;
di->mouse_last_y = di->mouse_y;
di->mouse_x = di->window_pos_x;
di->mouse_y = di->window_pos_y;
if (!mouse_state.rgbButtons[0])
unset_doubleclick_on_titlebar();
if (doubleclick_on_titlebar_pressed())
di->mouse_l = 0;
else
di->mouse_l = mouse_state.rgbButtons[0];
di->mouse_r = mouse_state.rgbButtons[1];
di->mouse_m = mouse_state.rgbButtons[2];
/* No simple way to get absolute coordinates
* for RETRO_DEVICE_POINTER. Just use Win32 APIs. */
POINT point = {0};
GetCursorPos(&point);
ScreenToClient((HWND)video_driver_window_get(), &point);
di->mouse_x = point.x;
di->mouse_y = point.y;
}
if (di->joypad)
di->joypad->poll();
}
static bool dinput_keyboard_pressed(struct dinput_input *di, unsigned key)
{
unsigned sym;
if (key >= RETROK_LAST)
return false;
sym = input_keymaps_translate_rk_to_keysym((enum retro_key)key);
return di->state[sym] & 0x80;
}
static bool dinput_is_pressed(struct dinput_input *di,
const struct retro_keybind *binds,
unsigned port, unsigned id)
{
rarch_joypad_info_t joypad_info;
const struct retro_keybind *bind = &binds[id];
settings_t *settings = config_get_ptr();
if (id >= RARCH_BIND_LIST_END)
return false;
joypad_info.joy_idx = port;
joypad_info.auto_binds = settings->input.autoconf_binds[port];
joypad_info.axis_threshold = settings->input.axis_threshold;
if (!di->blocked && dinput_keyboard_pressed(di, bind->key))
return true;
if (binds && binds[id].valid && input_joypad_pressed(di->joypad, joypad_info, port, binds, id))
return true;
return false;
}
static int16_t dinput_pressed_analog(struct dinput_input *di,
const struct retro_keybind *binds,
unsigned idx, unsigned id)
{
const struct retro_keybind *bind_minus, *bind_plus;
int16_t pressed_minus = 0, pressed_plus = 0;
unsigned id_minus = 0, id_plus = 0;
input_conv_analog_id_to_bind_id(idx, id, &id_minus, &id_plus);
bind_minus = &binds[id_minus];
bind_plus = &binds[id_plus];
if (!bind_minus->valid || !bind_plus->valid)
return 0;
if (dinput_keyboard_pressed(di, bind_minus->key))
pressed_minus = -0x7fff;
if (dinput_keyboard_pressed(di, bind_plus->key))
pressed_plus = 0x7fff;
return pressed_plus + pressed_minus;
}
static bool dinput_meta_key_pressed(void *data, int key)
{
return false;
}
static int16_t dinput_lightgun_state(struct dinput_input *di, unsigned id)
{
switch (id)
{
case RETRO_DEVICE_ID_LIGHTGUN_X:
return di->mouse_x - di->mouse_last_x;
case RETRO_DEVICE_ID_LIGHTGUN_Y:
return di->mouse_y - di->mouse_last_y;
case RETRO_DEVICE_ID_LIGHTGUN_TRIGGER:
return di->mouse_l;
case RETRO_DEVICE_ID_LIGHTGUN_CURSOR:
return di->mouse_m;
case RETRO_DEVICE_ID_LIGHTGUN_TURBO:
return di->mouse_r;
case RETRO_DEVICE_ID_LIGHTGUN_START:
return di->mouse_m && di->mouse_r;
case RETRO_DEVICE_ID_LIGHTGUN_PAUSE:
return di->mouse_m && di->mouse_l;
}
return 0;
}
static int16_t dinput_mouse_state(struct dinput_input *di, unsigned id)
{
int16_t state = 0;
switch (id)
{
case RETRO_DEVICE_ID_MOUSE_X:
return di->mouse_x - di->mouse_last_x;
case RETRO_DEVICE_ID_MOUSE_Y:
return di->mouse_y - di->mouse_last_y;
case RETRO_DEVICE_ID_MOUSE_LEFT:
return di->mouse_l;
case RETRO_DEVICE_ID_MOUSE_RIGHT:
return di->mouse_r;
case RETRO_DEVICE_ID_MOUSE_WHEELUP:
if (di->mouse_wu)
state = 1;
di->mouse_wu = false;
return state;
case RETRO_DEVICE_ID_MOUSE_WHEELDOWN:
if (di->mouse_wd)
state = 1;
di->mouse_wd = false;
return state;
case RETRO_DEVICE_ID_MOUSE_HORIZ_WHEELUP:
if (di->mouse_hwu)
state = 1;
di->mouse_hwu = false;
return state;
case RETRO_DEVICE_ID_MOUSE_HORIZ_WHEELDOWN:
if (di->mouse_hwd)
state = 1;
di->mouse_hwd = false;
return state;
case RETRO_DEVICE_ID_MOUSE_MIDDLE:
return di->mouse_m;
}
return 0;
}
static int16_t dinput_mouse_state_screen(struct dinput_input *di, unsigned id)
{
switch (id)
{
case RETRO_DEVICE_ID_MOUSE_X:
return di->mouse_x;
case RETRO_DEVICE_ID_MOUSE_Y:
return di->mouse_y;
default:
break;
}
return dinput_mouse_state(di, id);
}
static int16_t dinput_pointer_state(struct dinput_input *di,
unsigned idx, unsigned id, bool screen)
{
bool pointer_down, inside;
int x, y;
struct video_viewport vp = {0};
int16_t res_x = 0, res_y = 0, res_screen_x = 0, res_screen_y = 0;
unsigned num = 0;
struct pointer_status *check_pos = di->pointer_head.next;
while (check_pos && num < idx)
{
num++;
check_pos = check_pos->next;
}
if (!check_pos && idx > 0) /* idx = 0 has mouse fallback. */
return 0;
x = di->mouse_x;
y = di->mouse_y;
pointer_down = di->mouse_l;
if (check_pos)
{
x = check_pos->pointer_x;
y = check_pos->pointer_y;
pointer_down = true;
}
if (!(video_driver_translate_coord_viewport_wrap(&vp, x, y,
&res_x, &res_y, &res_screen_x, &res_screen_y)))
return 0;
if (screen)
{
res_x = res_screen_x;
res_y = res_screen_y;
}
inside = (res_x >= -0x7fff) && (res_y >= -0x7fff);
if (!inside)
return 0;
switch (id)
{
case RETRO_DEVICE_ID_POINTER_X:
return res_x;
case RETRO_DEVICE_ID_POINTER_Y:
return res_y;
case RETRO_DEVICE_ID_POINTER_PRESSED:
return pointer_down;
default:
break;
}
return 0;
}
static int16_t dinput_input_state(void *data,
const struct retro_keybind **binds, unsigned port,
unsigned device, unsigned idx, unsigned id)
{
rarch_joypad_info_t joypad_info;
int16_t ret;
struct dinput_input *di = (struct dinput_input*)data;
settings_t *settings = config_get_ptr();
joypad_info.joy_idx = port;
joypad_info.auto_binds = settings->input.autoconf_binds[port];
joypad_info.axis_threshold = settings->input.axis_threshold;
switch (device)
{
case RETRO_DEVICE_JOYPAD:
return dinput_is_pressed(di, binds[port], port, id);
case RETRO_DEVICE_KEYBOARD:
return dinput_keyboard_pressed(di, id);
case RETRO_DEVICE_ANALOG:
if (binds[port])
{
ret = dinput_pressed_analog(di, binds[port], idx, id);
if (!ret)
ret = input_joypad_analog(di->joypad, joypad_info,
port,
idx, id, settings->input.binds[port]);
return ret;
}
return 0;
case RETRO_DEVICE_MOUSE:
return dinput_mouse_state(di, id);
case RARCH_DEVICE_MOUSE_SCREEN:
return dinput_mouse_state_screen(di, id);
case RETRO_DEVICE_POINTER:
case RARCH_DEVICE_POINTER_SCREEN:
return dinput_pointer_state(di, idx, id,
device == RARCH_DEVICE_POINTER_SCREEN);
case RETRO_DEVICE_LIGHTGUN:
return dinput_lightgun_state(di, id);
}
return 0;
}
/* These are defined in later SDKs, thus ifdeffed. */
#ifndef WM_POINTERUPDATE
#define WM_POINTERUPDATE 0x0245
#endif
#ifndef WM_POINTERDOWN
#define WM_POINTERDOWN 0x0246
#endif
#ifndef WM_POINTERUP
#define WM_POINTERUP 0x0247
#endif
#ifndef GET_POINTERID_WPARAM
#define GET_POINTERID_WPARAM(wParam) (LOWORD(wParam))
#endif
/* Stores x/y in client coordinates. */
static void dinput_pointer_store_pos(
struct pointer_status *pointer, WPARAM lParam)
{
POINT point;
point.x = GET_X_LPARAM(lParam);
point.y = GET_Y_LPARAM(lParam);
ScreenToClient((HWND)video_driver_window_get(), &point);
pointer->pointer_x = point.x;
pointer->pointer_y = point.y;
}
static void dinput_add_pointer(struct dinput_input *di,
struct pointer_status *new_pointer)
{
struct pointer_status *insert_pos = NULL;
new_pointer->next = NULL;
insert_pos = &di->pointer_head;
while (insert_pos->next)
insert_pos = insert_pos->next;
insert_pos->next = new_pointer;
}
static void dinput_delete_pointer(struct dinput_input *di, int pointer_id)
{
struct pointer_status *check_pos = &di->pointer_head;
while (check_pos && check_pos->next)
{
if (check_pos->next->pointer_id == pointer_id)
{
struct pointer_status *to_delete = check_pos->next;
check_pos->next = check_pos->next->next;
free(to_delete);
}
check_pos = check_pos->next;
}
}
static struct pointer_status *dinput_find_pointer(
struct dinput_input *di, int pointer_id)
{
struct pointer_status *check_pos = di->pointer_head.next;
while (check_pos)
{
if (check_pos->pointer_id == pointer_id)
break;
check_pos = check_pos->next;
}
return check_pos;
}
static void dinput_clear_pointers(struct dinput_input *di)
{
struct pointer_status *pointer = &di->pointer_head;
while (pointer->next)
{
struct pointer_status *del = pointer->next;
pointer->next = pointer->next->next;
free(del);
}
}
#ifdef __cplusplus
extern "C"
#endif
bool dinput_handle_message(void *dinput, UINT message, WPARAM wParam, LPARAM lParam)
{
struct dinput_input *di = (struct dinput_input *)dinput;
settings_t *settings = config_get_ptr();
/* WM_POINTERDOWN : Arrives for each new touch event
* with a new ID - add to list.
* WM_POINTERUP : Arrives once the pointer is no
* longer down - remove from list.
* WM_POINTERUPDATE : arrives for both pressed and
* hovering pointers - ignore hovering
*/
switch (message)
{
case WM_MOUSEMOVE:
di->window_pos_x = GET_X_LPARAM(lParam);
di->window_pos_y = GET_Y_LPARAM(lParam);
break;
case WM_POINTERDOWN:
{
struct pointer_status *new_pointer =
(struct pointer_status *)malloc(sizeof(struct pointer_status));
if (!new_pointer)
{
RARCH_ERR("dinput_handle_message: pointer allocation in WM_POINTERDOWN failed.\n");
return false;
}
new_pointer->pointer_id = GET_POINTERID_WPARAM(wParam);
dinput_pointer_store_pos(new_pointer, lParam);
dinput_add_pointer(di, new_pointer);
return true;
}
case WM_POINTERUP:
{
int pointer_id = GET_POINTERID_WPARAM(wParam);
dinput_delete_pointer(di, pointer_id);
return true;
}
case WM_POINTERUPDATE:
{
int pointer_id = GET_POINTERID_WPARAM(wParam);
struct pointer_status *pointer = dinput_find_pointer(di, pointer_id);
if (pointer)
dinput_pointer_store_pos(pointer, lParam);
return true;
}
case WM_DEVICECHANGE:
if (di->joypad)
di->joypad->destroy();
di->joypad = input_joypad_init_driver(settings->input.joypad_driver, di);
break;
case WM_MOUSEWHEEL:
if (((short) HIWORD(wParam))/120 > 0)
di->mouse_wu = true;
if (((short) HIWORD(wParam))/120 < 0)
di->mouse_wd = true;
break;
case WM_MOUSEHWHEEL:
{
if (((short) HIWORD(wParam))/120 > 0)
di->mouse_hwu = true;
if (((short) HIWORD(wParam))/120 < 0)
di->mouse_hwd = true;
}
break;
}
return false;
}
static void dinput_free(void *data)
{
struct dinput_input *di = (struct dinput_input*)data;
LPDIRECTINPUT8 hold_ctx = g_dinput_ctx;
if (di)
{
/* Prevent a joypad driver to kill our context prematurely. */
g_dinput_ctx = NULL;
if (di->joypad)
di->joypad->destroy();
g_dinput_ctx = hold_ctx;
/* Clear any leftover pointers. */
dinput_clear_pointers(di);
if (di->keyboard)
IDirectInputDevice8_Release(di->keyboard);
if (di->mouse)
IDirectInputDevice8_Release(di->mouse);
free(di);
}
dinput_destroy_context();
}
static void dinput_grab_mouse(void *data, bool state)
{
struct dinput_input *di = (struct dinput_input*)data;
IDirectInputDevice8_Unacquire(di->mouse);
IDirectInputDevice8_SetCooperativeLevel(di->mouse,
(HWND)video_driver_window_get(),
state ?
(DISCL_EXCLUSIVE | DISCL_FOREGROUND) :
(DISCL_NONEXCLUSIVE | DISCL_FOREGROUND));
IDirectInputDevice8_Acquire(di->mouse);
}
static bool dinput_set_rumble(void *data, unsigned port,
enum retro_rumble_effect effect, uint16_t strength)
{
struct dinput_input *di = (struct dinput_input*)data;
if (!di)
return false;
return input_joypad_set_rumble(di->joypad, port, effect, strength);
}
static const input_device_driver_t *dinput_get_joypad_driver(void *data)
{
struct dinput_input *di = (struct dinput_input*)data;
if (!di)
return NULL;
return di->joypad;
}
static uint64_t dinput_get_capabilities(void *data)
{
uint64_t caps = 0;
caps |= (1 << RETRO_DEVICE_JOYPAD);
caps |= (1 << RETRO_DEVICE_MOUSE);
caps |= (1 << RETRO_DEVICE_KEYBOARD);
caps |= (1 << RETRO_DEVICE_LIGHTGUN);
caps |= (1 << RETRO_DEVICE_POINTER);
caps |= (1 << RETRO_DEVICE_ANALOG);
return caps;
}
static bool dinput_keyboard_mapping_is_blocked(void *data)
{
struct dinput_input *di = (struct dinput_input*)data;
if (!di)
return false;
return di->blocked;
}
static void dinput_keyboard_mapping_set_block(void *data, bool value)
{
struct dinput_input *di = (struct dinput_input*)data;
if (!di)
return;
di->blocked = value;
}
input_driver_t input_dinput = {
dinput_init,
dinput_poll,
dinput_input_state,
dinput_meta_key_pressed,
dinput_free,
NULL,
NULL,
dinput_get_capabilities,
"dinput",
dinput_grab_mouse,
NULL,
dinput_set_rumble,
dinput_get_joypad_driver,
NULL,
dinput_keyboard_mapping_is_blocked,
dinput_keyboard_mapping_set_block,
};
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