Sweden-Number/dlls/winebus.sys/bus_sdl.c

770 lines
25 KiB
C

/*
* Plug and Play support for hid devices found through SDL2
*
* Copyright 2017 CodeWeavers, Aric Stewart
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#if 0
#pragma makedep unix
#endif
#include "config.h"
#include "wine/port.h"
#include <errno.h>
#include <fcntl.h>
#include <stdarg.h>
#include <stdlib.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#ifdef HAVE_SDL_H
# include <SDL.h>
#endif
#include <pthread.h>
#include "ntstatus.h"
#define WIN32_NO_STATUS
#include "windef.h"
#include "winbase.h"
#include "winnls.h"
#include "winreg.h"
#include "winternl.h"
#include "ddk/wdm.h"
#include "ddk/hidtypes.h"
#include "ddk/hidsdi.h"
#include "wine/debug.h"
#include "wine/unicode.h"
#include "hidusage.h"
#include "unix_private.h"
WINE_DEFAULT_DEBUG_CHANNEL(plugplay);
#ifdef SONAME_LIBSDL2
WINE_DECLARE_DEBUG_CHANNEL(hid_report);
static pthread_mutex_t sdl_cs = PTHREAD_MUTEX_INITIALIZER;
static struct sdl_bus_options options;
static void *sdl_handle = NULL;
static UINT quit_event = -1;
static struct list event_queue = LIST_INIT(event_queue);
static struct list device_list = LIST_INIT(device_list);
#define MAKE_FUNCPTR(f) static typeof(f) * p##f = NULL
MAKE_FUNCPTR(SDL_GetError);
MAKE_FUNCPTR(SDL_Init);
MAKE_FUNCPTR(SDL_JoystickClose);
MAKE_FUNCPTR(SDL_JoystickEventState);
MAKE_FUNCPTR(SDL_JoystickGetGUID);
MAKE_FUNCPTR(SDL_JoystickGetGUIDString);
MAKE_FUNCPTR(SDL_JoystickInstanceID);
MAKE_FUNCPTR(SDL_JoystickName);
MAKE_FUNCPTR(SDL_JoystickNumAxes);
MAKE_FUNCPTR(SDL_JoystickOpen);
MAKE_FUNCPTR(SDL_WaitEvent);
MAKE_FUNCPTR(SDL_JoystickNumButtons);
MAKE_FUNCPTR(SDL_JoystickNumBalls);
MAKE_FUNCPTR(SDL_JoystickNumHats);
MAKE_FUNCPTR(SDL_JoystickGetAxis);
MAKE_FUNCPTR(SDL_JoystickGetHat);
MAKE_FUNCPTR(SDL_IsGameController);
MAKE_FUNCPTR(SDL_GameControllerClose);
MAKE_FUNCPTR(SDL_GameControllerGetAxis);
MAKE_FUNCPTR(SDL_GameControllerGetButton);
MAKE_FUNCPTR(SDL_GameControllerName);
MAKE_FUNCPTR(SDL_GameControllerOpen);
MAKE_FUNCPTR(SDL_GameControllerEventState);
MAKE_FUNCPTR(SDL_HapticClose);
MAKE_FUNCPTR(SDL_HapticDestroyEffect);
MAKE_FUNCPTR(SDL_HapticNewEffect);
MAKE_FUNCPTR(SDL_HapticOpenFromJoystick);
MAKE_FUNCPTR(SDL_HapticQuery);
MAKE_FUNCPTR(SDL_HapticRumbleInit);
MAKE_FUNCPTR(SDL_HapticRumblePlay);
MAKE_FUNCPTR(SDL_HapticRumbleSupported);
MAKE_FUNCPTR(SDL_HapticRunEffect);
MAKE_FUNCPTR(SDL_HapticStopAll);
MAKE_FUNCPTR(SDL_JoystickIsHaptic);
MAKE_FUNCPTR(SDL_JoystickRumble);
MAKE_FUNCPTR(SDL_memset);
MAKE_FUNCPTR(SDL_GameControllerAddMapping);
MAKE_FUNCPTR(SDL_RegisterEvents);
MAKE_FUNCPTR(SDL_PushEvent);
static Uint16 (*pSDL_JoystickGetProduct)(SDL_Joystick * joystick);
static Uint16 (*pSDL_JoystickGetProductVersion)(SDL_Joystick * joystick);
static Uint16 (*pSDL_JoystickGetVendor)(SDL_Joystick * joystick);
/* internal bits for extended rumble support, SDL_Haptic types are 16-bits */
#define WINE_SDL_JOYSTICK_RUMBLE 0x40000000 /* using SDL_JoystickRumble API */
#define WINE_SDL_HAPTIC_RUMBLE 0x80000000 /* using SDL_HapticRumble API */
#define EFFECT_SUPPORT_HAPTICS (SDL_HAPTIC_LEFTRIGHT|WINE_SDL_HAPTIC_RUMBLE|WINE_SDL_JOYSTICK_RUMBLE)
struct sdl_device
{
struct unix_device unix_device;
SDL_Joystick *sdl_joystick;
SDL_GameController *sdl_controller;
SDL_JoystickID id;
DWORD effect_support;
SDL_Haptic *sdl_haptic;
int haptic_effect_id;
};
static inline struct sdl_device *impl_from_unix_device(struct unix_device *iface)
{
return CONTAINING_RECORD(iface, struct sdl_device, unix_device);
}
static struct sdl_device *find_device_from_id(SDL_JoystickID id)
{
struct sdl_device *impl;
LIST_FOR_EACH_ENTRY(impl, &device_list, struct sdl_device, unix_device.entry)
if (impl->id == id) return impl;
return NULL;
}
static void set_hat_value(struct unix_device *iface, int index, int value)
{
LONG x = 0, y = 0;
switch (value)
{
case SDL_HAT_CENTERED: break;
case SDL_HAT_UP: y = 1; break;
case SDL_HAT_RIGHTUP: y = x = 1; break;
case SDL_HAT_RIGHT: x = 1; break;
case SDL_HAT_RIGHTDOWN: x = 1; y = -1; break;
case SDL_HAT_DOWN: y = -1; break;
case SDL_HAT_LEFTDOWN: x = y = -1; break;
case SDL_HAT_LEFT: x = -1; break;
case SDL_HAT_LEFTUP: x = -1; y = 1; break;
}
hid_device_set_hatswitch_x(iface, index, x);
hid_device_set_hatswitch_y(iface, index, y);
}
static BOOL descriptor_add_haptic(struct sdl_device *impl)
{
unsigned int haptics_mask = SDL_HAPTIC_LEFTRIGHT;
if (!pSDL_JoystickIsHaptic(impl->sdl_joystick) ||
!(impl->sdl_haptic = pSDL_HapticOpenFromJoystick(impl->sdl_joystick)))
impl->effect_support = 0;
else
{
impl->effect_support = pSDL_HapticQuery(impl->sdl_haptic) & haptics_mask;
if (pSDL_HapticRumbleSupported(impl->sdl_haptic))
impl->effect_support |= WINE_SDL_HAPTIC_RUMBLE;
pSDL_HapticStopAll(impl->sdl_haptic);
pSDL_HapticRumbleInit(impl->sdl_haptic);
}
if (!pSDL_JoystickRumble(impl->sdl_joystick, 0, 0, 0))
impl->effect_support |= WINE_SDL_JOYSTICK_RUMBLE;
if (impl->effect_support & EFFECT_SUPPORT_HAPTICS)
{
if (!hid_device_add_haptics(&impl->unix_device))
return FALSE;
}
impl->haptic_effect_id = -1;
return TRUE;
}
static NTSTATUS build_joystick_report_descriptor(struct unix_device *iface)
{
static const USAGE joystick_usages[] =
{
HID_USAGE_GENERIC_X,
HID_USAGE_GENERIC_Y,
HID_USAGE_GENERIC_Z,
HID_USAGE_GENERIC_RX,
HID_USAGE_GENERIC_RY,
HID_USAGE_GENERIC_RZ,
HID_USAGE_GENERIC_SLIDER,
HID_USAGE_GENERIC_DIAL,
HID_USAGE_GENERIC_WHEEL
};
struct sdl_device *impl = impl_from_unix_device(iface);
int i, button_count, axis_count, ball_count, hat_count;
axis_count = pSDL_JoystickNumAxes(impl->sdl_joystick);
if (axis_count > 6)
{
FIXME("Clamping joystick to 6 axis\n");
axis_count = 6;
}
ball_count = pSDL_JoystickNumBalls(impl->sdl_joystick);
if (axis_count + ball_count * 2 > ARRAY_SIZE(joystick_usages))
{
FIXME("Capping ball + axis at 9\n");
ball_count = (ARRAY_SIZE(joystick_usages) - axis_count) / 2;
}
hat_count = pSDL_JoystickNumHats(impl->sdl_joystick);
button_count = pSDL_JoystickNumButtons(impl->sdl_joystick);
if (!hid_device_begin_report_descriptor(iface, HID_USAGE_PAGE_GENERIC, HID_USAGE_GENERIC_JOYSTICK))
return STATUS_NO_MEMORY;
if (!hid_device_begin_input_report(iface))
return STATUS_NO_MEMORY;
if (axis_count && !hid_device_add_axes(iface, axis_count, HID_USAGE_PAGE_GENERIC,
joystick_usages, FALSE, -32768, 32767))
return STATUS_NO_MEMORY;
if (ball_count && !hid_device_add_axes(iface, ball_count * 2, HID_USAGE_PAGE_GENERIC,
&joystick_usages[axis_count], TRUE, INT32_MIN, INT32_MAX))
return STATUS_NO_MEMORY;
if (hat_count && !hid_device_add_hatswitch(iface, hat_count))
return STATUS_NO_MEMORY;
if (button_count && !hid_device_add_buttons(iface, HID_USAGE_PAGE_BUTTON, 1, button_count))
return STATUS_NO_MEMORY;
if (!hid_device_end_input_report(iface))
return STATUS_NO_MEMORY;
if (!descriptor_add_haptic(impl))
return STATUS_NO_MEMORY;
if (!hid_device_end_report_descriptor(iface))
return STATUS_NO_MEMORY;
/* Initialize axis in the report */
for (i = 0; i < axis_count; i++)
hid_device_set_abs_axis(iface, i, pSDL_JoystickGetAxis(impl->sdl_joystick, i));
for (i = 0; i < hat_count; i++)
set_hat_value(iface, i, pSDL_JoystickGetHat(impl->sdl_joystick, i));
return STATUS_SUCCESS;
}
static NTSTATUS build_controller_report_descriptor(struct unix_device *iface)
{
static const USAGE left_axis_usages[] = {HID_USAGE_GENERIC_X, HID_USAGE_GENERIC_Y};
static const USAGE right_axis_usages[] = {HID_USAGE_GENERIC_RX, HID_USAGE_GENERIC_RY};
static const USAGE trigger_axis_usages[] = {HID_USAGE_GENERIC_Z, HID_USAGE_GENERIC_RZ};
struct sdl_device *impl = impl_from_unix_device(iface);
ULONG i, button_count = SDL_CONTROLLER_BUTTON_MAX - 1;
C_ASSERT(SDL_CONTROLLER_AXIS_MAX == 6);
if (!hid_device_begin_report_descriptor(iface, HID_USAGE_PAGE_GENERIC, HID_USAGE_GENERIC_GAMEPAD))
return STATUS_NO_MEMORY;
if (!hid_device_begin_input_report(iface))
return STATUS_NO_MEMORY;
if (!hid_device_add_axes(iface, 2, HID_USAGE_PAGE_GENERIC, left_axis_usages,
FALSE, -32768, 32767))
return STATUS_NO_MEMORY;
if (!hid_device_add_axes(iface, 2, HID_USAGE_PAGE_GENERIC, right_axis_usages,
FALSE, -32768, 32767))
return STATUS_NO_MEMORY;
if (!hid_device_add_axes(iface, 2, HID_USAGE_PAGE_GENERIC, trigger_axis_usages,
FALSE, 0, 32767))
return STATUS_NO_MEMORY;
if (!hid_device_add_hatswitch(iface, 1))
return STATUS_NO_MEMORY;
if (!hid_device_add_buttons(iface, HID_USAGE_PAGE_BUTTON, 1, button_count))
return STATUS_NO_MEMORY;
if (!hid_device_end_input_report(iface))
return STATUS_NO_MEMORY;
if (!descriptor_add_haptic(impl))
return STATUS_NO_MEMORY;
if (!hid_device_end_report_descriptor(iface))
return STATUS_NO_MEMORY;
/* Initialize axis in the report */
for (i = SDL_CONTROLLER_AXIS_LEFTX; i < SDL_CONTROLLER_AXIS_MAX; i++)
hid_device_set_abs_axis(iface, i, pSDL_GameControllerGetAxis(impl->sdl_controller, i));
if (pSDL_GameControllerGetButton(impl->sdl_controller, SDL_CONTROLLER_BUTTON_DPAD_UP))
hid_device_set_hatswitch_y(iface, 0, -1);
if (pSDL_GameControllerGetButton(impl->sdl_controller, SDL_CONTROLLER_BUTTON_DPAD_DOWN))
hid_device_set_hatswitch_y(iface, 0, +1);
if (pSDL_GameControllerGetButton(impl->sdl_controller, SDL_CONTROLLER_BUTTON_DPAD_LEFT))
hid_device_set_hatswitch_x(iface, 0, -1);
if (pSDL_GameControllerGetButton(impl->sdl_controller, SDL_CONTROLLER_BUTTON_DPAD_RIGHT))
hid_device_set_hatswitch_x(iface, 0, +1);
return STATUS_SUCCESS;
}
static void sdl_device_destroy(struct unix_device *iface)
{
}
static NTSTATUS sdl_device_start(struct unix_device *iface)
{
struct sdl_device *impl = impl_from_unix_device(iface);
if (impl->sdl_controller) return build_controller_report_descriptor(iface);
return build_joystick_report_descriptor(iface);
}
static void sdl_device_stop(struct unix_device *iface)
{
struct sdl_device *impl = impl_from_unix_device(iface);
pSDL_JoystickClose(impl->sdl_joystick);
if (impl->sdl_controller) pSDL_GameControllerClose(impl->sdl_controller);
if (impl->sdl_haptic) pSDL_HapticClose(impl->sdl_haptic);
pthread_mutex_lock(&sdl_cs);
list_remove(&impl->unix_device.entry);
pthread_mutex_unlock(&sdl_cs);
}
NTSTATUS sdl_device_haptics_start(struct unix_device *iface, DWORD duration_ms,
USHORT rumble_intensity, USHORT buzz_intensity)
{
struct sdl_device *impl = impl_from_unix_device(iface);
SDL_HapticEffect effect;
TRACE("iface %p, duration_ms %u, rumble_intensity %u, buzz_intensity %u.\n", iface, duration_ms,
rumble_intensity, buzz_intensity);
if (!(impl->effect_support & EFFECT_SUPPORT_HAPTICS)) return STATUS_NOT_SUPPORTED;
memset(&effect, 0, sizeof(SDL_HapticEffect));
effect.type = SDL_HAPTIC_LEFTRIGHT;
effect.leftright.length = duration_ms;
effect.leftright.large_magnitude = rumble_intensity;
effect.leftright.small_magnitude = buzz_intensity;
if (impl->sdl_haptic) pSDL_HapticStopAll(impl->sdl_haptic);
if (impl->effect_support & WINE_SDL_JOYSTICK_RUMBLE)
pSDL_JoystickRumble(impl->sdl_joystick, 0, 0, 0);
if (!effect.leftright.large_magnitude && !effect.leftright.small_magnitude)
return STATUS_SUCCESS;
if (impl->effect_support & SDL_HAPTIC_LEFTRIGHT)
{
if (impl->haptic_effect_id >= 0)
pSDL_HapticDestroyEffect(impl->sdl_haptic, impl->haptic_effect_id);
impl->haptic_effect_id = pSDL_HapticNewEffect(impl->sdl_haptic, &effect);
if (impl->haptic_effect_id >= 0)
pSDL_HapticRunEffect(impl->sdl_haptic, impl->haptic_effect_id, 1);
}
else if (impl->effect_support & WINE_SDL_HAPTIC_RUMBLE)
{
float magnitude = (effect.leftright.large_magnitude + effect.leftright.small_magnitude) / 2.0 / 32767.0;
pSDL_HapticRumblePlay(impl->sdl_haptic, magnitude, effect.leftright.length);
}
else if (impl->effect_support & WINE_SDL_JOYSTICK_RUMBLE)
{
pSDL_JoystickRumble(impl->sdl_joystick, effect.leftright.large_magnitude,
effect.leftright.small_magnitude, -1);
}
return STATUS_SUCCESS;
}
static const struct hid_device_vtbl sdl_device_vtbl =
{
sdl_device_destroy,
sdl_device_start,
sdl_device_stop,
sdl_device_haptics_start,
};
static BOOL set_report_from_joystick_event(struct sdl_device *impl, SDL_Event *event)
{
struct unix_device *iface = &impl->unix_device;
struct hid_device_state *state = &iface->hid_device_state;
if (impl->sdl_controller) return TRUE; /* use controller events instead */
switch(event->type)
{
case SDL_JOYBUTTONDOWN:
case SDL_JOYBUTTONUP:
{
SDL_JoyButtonEvent *ie = &event->jbutton;
hid_device_set_button(iface, ie->button, ie->state);
bus_event_queue_input_report(&event_queue, iface, state->report_buf, state->report_len);
break;
}
case SDL_JOYAXISMOTION:
{
SDL_JoyAxisEvent *ie = &event->jaxis;
hid_device_set_abs_axis(iface, ie->axis, ie->value);
bus_event_queue_input_report(&event_queue, iface, state->report_buf, state->report_len);
break;
}
case SDL_JOYBALLMOTION:
{
SDL_JoyBallEvent *ie = &event->jball;
hid_device_set_rel_axis(iface, 2 * ie->ball, ie->xrel);
hid_device_set_rel_axis(iface, 2 * ie->ball + 1, ie->yrel);
bus_event_queue_input_report(&event_queue, iface, state->report_buf, state->report_len);
break;
}
case SDL_JOYHATMOTION:
{
SDL_JoyHatEvent *ie = &event->jhat;
set_hat_value(iface, ie->hat, ie->value);
bus_event_queue_input_report(&event_queue, iface, state->report_buf, state->report_len);
break;
}
default:
ERR("TODO: Process Report (0x%x)\n",event->type);
}
return FALSE;
}
static BOOL set_report_from_controller_event(struct sdl_device *impl, SDL_Event *event)
{
struct unix_device *iface = &impl->unix_device;
struct hid_device_state *state = &iface->hid_device_state;
switch(event->type)
{
case SDL_CONTROLLERBUTTONDOWN:
case SDL_CONTROLLERBUTTONUP:
{
SDL_ControllerButtonEvent *ie = &event->cbutton;
int button;
switch ((button = ie->button))
{
case SDL_CONTROLLER_BUTTON_DPAD_UP:
hid_device_set_hatswitch_y(iface, 0, ie->state ? -1 : 0);
break;
case SDL_CONTROLLER_BUTTON_DPAD_DOWN:
hid_device_set_hatswitch_y(iface, 0, ie->state ? +1 : 0);
break;
case SDL_CONTROLLER_BUTTON_DPAD_LEFT:
hid_device_set_hatswitch_x(iface, 0, ie->state ? -1 : 0);
break;
case SDL_CONTROLLER_BUTTON_DPAD_RIGHT:
hid_device_set_hatswitch_x(iface, 0, ie->state ? +1 : 0);
break;
case SDL_CONTROLLER_BUTTON_LEFTSHOULDER: button = 4; break;
case SDL_CONTROLLER_BUTTON_RIGHTSHOULDER: button = 5; break;
case SDL_CONTROLLER_BUTTON_BACK: button = 6; break;
case SDL_CONTROLLER_BUTTON_START: button = 7; break;
case SDL_CONTROLLER_BUTTON_LEFTSTICK: button = 8; break;
case SDL_CONTROLLER_BUTTON_RIGHTSTICK: button = 9; break;
case SDL_CONTROLLER_BUTTON_GUIDE: button = 10; break;
}
hid_device_set_button(iface, button, ie->state);
bus_event_queue_input_report(&event_queue, iface, state->report_buf, state->report_len);
break;
}
case SDL_CONTROLLERAXISMOTION:
{
SDL_ControllerAxisEvent *ie = &event->caxis;
hid_device_set_abs_axis(iface, ie->axis, ie->value);
bus_event_queue_input_report(&event_queue, iface, state->report_buf, state->report_len);
break;
}
default:
ERR("TODO: Process Report (%x)\n",event->type);
}
return FALSE;
}
static void sdl_add_device(unsigned int index)
{
struct device_desc desc =
{
.input = -1,
.manufacturer = {"SDL"},
.serialnumber = {"0000"},
};
struct sdl_device *impl;
SDL_Joystick* joystick;
SDL_JoystickID id;
SDL_JoystickGUID guid;
SDL_GameController *controller = NULL;
if ((joystick = pSDL_JoystickOpen(index)) == NULL)
{
WARN("Unable to open sdl device %i: %s\n", index, pSDL_GetError());
return;
}
if (options.map_controllers && pSDL_IsGameController(index))
controller = pSDL_GameControllerOpen(index);
if (controller) lstrcpynA(desc.product, pSDL_GameControllerName(controller), sizeof(desc.product));
else lstrcpynA(desc.product, pSDL_JoystickName(joystick), sizeof(desc.product));
id = pSDL_JoystickInstanceID(joystick);
if (pSDL_JoystickGetProductVersion != NULL) {
desc.vid = pSDL_JoystickGetVendor(joystick);
desc.pid = pSDL_JoystickGetProduct(joystick);
desc.version = pSDL_JoystickGetProductVersion(joystick);
}
else
{
desc.vid = 0x01;
desc.pid = pSDL_JoystickInstanceID(joystick) + 1;
desc.version = 0;
}
guid = pSDL_JoystickGetGUID(joystick);
pSDL_JoystickGetGUIDString(guid, desc.serialnumber, sizeof(desc.serialnumber));
if (controller) desc.is_gamepad = TRUE;
else
{
int button_count, axis_count;
axis_count = pSDL_JoystickNumAxes(joystick);
button_count = pSDL_JoystickNumButtons(joystick);
desc.is_gamepad = (axis_count == 6 && button_count >= 14);
}
TRACE("%s id %d, desc %s.\n", controller ? "controller" : "joystick", id, debugstr_device_desc(&desc));
if (!(impl = hid_device_create(&sdl_device_vtbl, sizeof(struct sdl_device)))) return;
list_add_tail(&device_list, &impl->unix_device.entry);
impl->sdl_joystick = joystick;
impl->sdl_controller = controller;
impl->id = id;
bus_event_queue_device_created(&event_queue, &impl->unix_device, &desc);
}
static void process_device_event(SDL_Event *event)
{
struct sdl_device *impl;
SDL_JoystickID id;
TRACE_(hid_report)("Received action %x\n", event->type);
pthread_mutex_lock(&sdl_cs);
if (event->type == SDL_JOYDEVICEADDED)
sdl_add_device(((SDL_JoyDeviceEvent *)event)->which);
else if (event->type == SDL_JOYDEVICEREMOVED)
{
id = ((SDL_JoyDeviceEvent *)event)->which;
impl = find_device_from_id(id);
if (impl) bus_event_queue_device_removed(&event_queue, &impl->unix_device);
else WARN("failed to find device with id %d\n", id);
}
else if (event->type >= SDL_JOYAXISMOTION && event->type <= SDL_JOYBUTTONUP)
{
id = ((SDL_JoyButtonEvent *)event)->which;
impl = find_device_from_id(id);
if (impl) set_report_from_joystick_event(impl, event);
else WARN("failed to find device with id %d\n", id);
}
else if (event->type >= SDL_CONTROLLERAXISMOTION && event->type <= SDL_CONTROLLERBUTTONUP)
{
id = ((SDL_ControllerButtonEvent *)event)->which;
impl = find_device_from_id(id);
if (impl) set_report_from_controller_event(impl, event);
else WARN("failed to find device with id %d\n", id);
}
pthread_mutex_unlock(&sdl_cs);
}
NTSTATUS sdl_bus_init(void *args)
{
const char *mapping;
int i;
TRACE("args %p\n", args);
options = *(struct sdl_bus_options *)args;
if (!(sdl_handle = dlopen(SONAME_LIBSDL2, RTLD_NOW)))
{
WARN("could not load %s\n", SONAME_LIBSDL2);
return STATUS_UNSUCCESSFUL;
}
#define LOAD_FUNCPTR(f) \
if ((p##f = dlsym(sdl_handle, #f)) == NULL) \
{ \
WARN("could not find symbol %s\n", #f); \
goto failed; \
}
LOAD_FUNCPTR(SDL_GetError);
LOAD_FUNCPTR(SDL_Init);
LOAD_FUNCPTR(SDL_JoystickClose);
LOAD_FUNCPTR(SDL_JoystickEventState);
LOAD_FUNCPTR(SDL_JoystickGetGUID);
LOAD_FUNCPTR(SDL_JoystickGetGUIDString);
LOAD_FUNCPTR(SDL_JoystickInstanceID);
LOAD_FUNCPTR(SDL_JoystickName);
LOAD_FUNCPTR(SDL_JoystickNumAxes);
LOAD_FUNCPTR(SDL_JoystickOpen);
LOAD_FUNCPTR(SDL_WaitEvent);
LOAD_FUNCPTR(SDL_JoystickNumButtons);
LOAD_FUNCPTR(SDL_JoystickNumBalls);
LOAD_FUNCPTR(SDL_JoystickNumHats);
LOAD_FUNCPTR(SDL_JoystickGetAxis);
LOAD_FUNCPTR(SDL_JoystickGetHat);
LOAD_FUNCPTR(SDL_IsGameController);
LOAD_FUNCPTR(SDL_GameControllerClose);
LOAD_FUNCPTR(SDL_GameControllerGetAxis);
LOAD_FUNCPTR(SDL_GameControllerGetButton);
LOAD_FUNCPTR(SDL_GameControllerName);
LOAD_FUNCPTR(SDL_GameControllerOpen);
LOAD_FUNCPTR(SDL_GameControllerEventState);
LOAD_FUNCPTR(SDL_HapticClose);
LOAD_FUNCPTR(SDL_HapticDestroyEffect);
LOAD_FUNCPTR(SDL_HapticNewEffect);
LOAD_FUNCPTR(SDL_HapticOpenFromJoystick);
LOAD_FUNCPTR(SDL_HapticQuery);
LOAD_FUNCPTR(SDL_HapticRumbleInit);
LOAD_FUNCPTR(SDL_HapticRumblePlay);
LOAD_FUNCPTR(SDL_HapticRumbleSupported);
LOAD_FUNCPTR(SDL_HapticRunEffect);
LOAD_FUNCPTR(SDL_HapticStopAll);
LOAD_FUNCPTR(SDL_JoystickIsHaptic);
LOAD_FUNCPTR(SDL_JoystickRumble);
LOAD_FUNCPTR(SDL_memset);
LOAD_FUNCPTR(SDL_GameControllerAddMapping);
LOAD_FUNCPTR(SDL_RegisterEvents);
LOAD_FUNCPTR(SDL_PushEvent);
#undef LOAD_FUNCPTR
pSDL_JoystickGetProduct = dlsym(sdl_handle, "SDL_JoystickGetProduct");
pSDL_JoystickGetProductVersion = dlsym(sdl_handle, "SDL_JoystickGetProductVersion");
pSDL_JoystickGetVendor = dlsym(sdl_handle, "SDL_JoystickGetVendor");
if (pSDL_Init(SDL_INIT_GAMECONTROLLER | SDL_INIT_HAPTIC) < 0)
{
ERR("could not init SDL: %s\n", pSDL_GetError());
goto failed;
}
if ((quit_event = pSDL_RegisterEvents(1)) == -1)
{
ERR("error registering quit event\n");
goto failed;
}
pSDL_JoystickEventState(SDL_ENABLE);
pSDL_GameControllerEventState(SDL_ENABLE);
/* Process mappings */
if (pSDL_GameControllerAddMapping)
{
if ((mapping = getenv("SDL_GAMECONTROLLERCONFIG")))
{
TRACE("Setting environment mapping %s\n", debugstr_a(mapping));
if (pSDL_GameControllerAddMapping(mapping) < 0)
WARN("Failed to add environment mapping %s\n", pSDL_GetError());
}
else for (i = 0; i < options.mappings_count; ++i)
{
TRACE("Setting registry mapping %s\n", debugstr_a(options.mappings[i]));
if (pSDL_GameControllerAddMapping(options.mappings[i]) < 0)
WARN("Failed to add registry mapping %s\n", pSDL_GetError());
}
}
return STATUS_SUCCESS;
failed:
dlclose(sdl_handle);
sdl_handle = NULL;
return STATUS_UNSUCCESSFUL;
}
NTSTATUS sdl_bus_wait(void *args)
{
struct bus_event *result = args;
SDL_Event event;
/* cleanup previously returned event */
bus_event_cleanup(result);
do
{
if (bus_event_queue_pop(&event_queue, result)) return STATUS_PENDING;
if (pSDL_WaitEvent(&event) != 0) process_device_event(&event);
else WARN("SDL_WaitEvent failed: %s\n", pSDL_GetError());
} while (event.type != quit_event);
TRACE("SDL main loop exiting\n");
bus_event_queue_destroy(&event_queue);
dlclose(sdl_handle);
sdl_handle = NULL;
return STATUS_SUCCESS;
}
NTSTATUS sdl_bus_stop(void *args)
{
SDL_Event event;
if (!sdl_handle) return STATUS_SUCCESS;
event.type = quit_event;
if (pSDL_PushEvent(&event) != 1)
{
ERR("error pushing quit event\n");
return STATUS_UNSUCCESSFUL;
}
return STATUS_SUCCESS;
}
#else
NTSTATUS sdl_bus_init(void *args)
{
WARN("SDL support not compiled in!\n");
return STATUS_NOT_IMPLEMENTED;
}
NTSTATUS sdl_bus_wait(void *args)
{
WARN("SDL support not compiled in!\n");
return STATUS_NOT_IMPLEMENTED;
}
NTSTATUS sdl_bus_stop(void *args)
{
WARN("SDL support not compiled in!\n");
return STATUS_NOT_IMPLEMENTED;
}
#endif /* SONAME_LIBSDL2 */