flycast/core/input/gamepad_device.cpp

542 lines
14 KiB
C++

/*
Copyright 2019 flyinghead
This file is part of reicast.
reicast 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 Foundation, either version 2 of the License, or
(at your option) any later version.
reicast 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 reicast. If not, see <https://www.gnu.org/licenses/>.
*/
#include "gamepad_device.h"
#include "cfg/cfg.h"
#include "oslib/oslib.h"
#include "rend/gui.h"
#include "emulator.h"
#include "hw/maple/maple_devs.h"
#include "stdclass.h"
#include <algorithm>
#include <climits>
#include <fstream>
#define MAPLE_PORT_CFG_PREFIX "maple_"
// Gamepads
u32 kcode[4] = { ~0u, ~0u, ~0u, ~0u };
s8 joyx[4];
s8 joyy[4];
s8 joyrx[4];
s8 joyry[4];
u8 rt[4];
u8 lt[4];
// Keyboards
u8 kb_shift[MAPLE_PORTS]; // shift keys pressed (bitmask)
u8 kb_key[MAPLE_PORTS][6]; // normal keys pressed
std::vector<std::shared_ptr<GamepadDevice>> GamepadDevice::_gamepads;
std::mutex GamepadDevice::_gamepads_mutex;
#ifdef TEST_AUTOMATION
#include "hw/sh4/sh4_sched.h"
static FILE *record_input;
#endif
bool GamepadDevice::handleButtonInput(int port, DreamcastKey key, bool pressed)
{
if (key == EMU_BTN_NONE)
return false;
if (key <= DC_BTN_RELOAD)
{
if (port >= 0)
{
if (pressed)
kcode[port] &= ~key;
else
kcode[port] |= key;
}
#ifdef TEST_AUTOMATION
if (record_input != NULL)
fprintf(record_input, "%ld button %x %04x\n", sh4_sched_now64(), port, kcode[port]);
#endif
}
else
{
switch (key)
{
case EMU_BTN_ESCAPE:
if (pressed)
dc_exit();
break;
case EMU_BTN_MENU:
if (pressed)
gui_open_settings();
break;
case EMU_BTN_FFORWARD:
if (pressed && !gui_is_open())
settings.input.fastForwardMode = !settings.input.fastForwardMode && !settings.network.online;
break;
case DC_AXIS_LT:
if (port >= 0)
lt[port] = pressed ? 255 : 0;
break;
case DC_AXIS_RT:
if (port >= 0)
rt[port] = pressed ? 255 : 0;
break;
case DC_AXIS_UP:
case DC_AXIS_DOWN:
buttonToAnalogInput<DC_AXIS_UP, DIGANA_UP, DIGANA_DOWN>(port, key, pressed, joyy[port]);
break;
case DC_AXIS_LEFT:
case DC_AXIS_RIGHT:
buttonToAnalogInput<DC_AXIS_LEFT, DIGANA_LEFT, DIGANA_RIGHT>(port, key, pressed, joyx[port]);
break;
case DC_AXIS2_UP:
case DC_AXIS2_DOWN:
buttonToAnalogInput<DC_AXIS2_UP, DIGANA2_UP, DIGANA2_DOWN>(port, key, pressed, joyry[port]);
break;
case DC_AXIS2_LEFT:
case DC_AXIS2_RIGHT:
buttonToAnalogInput<DC_AXIS2_LEFT, DIGANA2_LEFT, DIGANA2_RIGHT>(port, key, pressed, joyrx[port]);
break;
default:
return false;
}
}
DEBUG_LOG(INPUT, "%d: BUTTON %s %d. kcode=%x", port, pressed ? "down" : "up", key, port >= 0 ? kcode[port] : 0);
return true;
}
bool GamepadDevice::gamepad_btn_input(u32 code, bool pressed)
{
if (_input_detected != nullptr && _detecting_button
&& os_GetSeconds() >= _detection_start_time && pressed)
{
_input_detected(code, false, false);
_input_detected = nullptr;
return true;
}
if (!input_mapper || _maple_port > (int)ARRAY_SIZE(kcode))
return false;
bool rc = false;
if (_maple_port == 4)
{
for (int port = 0; port < 4; port++)
{
DreamcastKey key = input_mapper->get_button_id(port, code);
rc = handleButtonInput(port, key, pressed) || rc;
}
}
else
{
DreamcastKey key = input_mapper->get_button_id(0, code);
rc = handleButtonInput(_maple_port, key, pressed);
}
return rc;
}
//
// value must be >= -32768 and <= 32767 for full axes
// and 0 to 32767 for half axes/triggers
//
bool GamepadDevice::gamepad_axis_input(u32 code, int value)
{
bool positive = value >= 0;
if (_input_detected != NULL && _detecting_axis
&& os_GetSeconds() >= _detection_start_time && std::abs(value) >= 16384)
{
_input_detected(code, true, positive);
_input_detected = nullptr;
return true;
}
if (!input_mapper || _maple_port < 0 || _maple_port > 4)
return false;
auto handle_axis = [&](u32 port, DreamcastKey key, int v)
{
if ((key & DC_BTN_GROUP_MASK) == DC_AXIS_TRIGGERS) // Triggers
{
//printf("T-AXIS %d Mapped to %d -> %d\n", key, value, std::min(std::abs(v) >> 7, 255));
if (key == DC_AXIS_LT)
lt[port] = std::min(std::abs(v) >> 7, 255);
else if (key == DC_AXIS_RT)
rt[port] = std::min(std::abs(v) >> 7, 255);
else
return false;
}
else if ((key & DC_BTN_GROUP_MASK) == DC_AXIS_STICKS) // Analog axes
{
//printf("AXIS %d Mapped to %d -> %d\n", key, value, v);
s8 *this_axis;
s8 *other_axis;
int axisDirection = -1;
switch (key)
{
case DC_AXIS_RIGHT:
axisDirection = 1;
//no break
case DC_AXIS_LEFT:
this_axis = &joyx[port];
other_axis = &joyy[port];
break;
case DC_AXIS_DOWN:
axisDirection = 1;
//no break
case DC_AXIS_UP:
this_axis = &joyy[port];
other_axis = &joyx[port];
break;
case DC_AXIS2_RIGHT:
axisDirection = 1;
//no break
case DC_AXIS2_LEFT:
this_axis = &joyrx[port];
other_axis = &joyry[port];
break;
case DC_AXIS2_DOWN:
axisDirection = 1;
//no break
case DC_AXIS2_UP:
this_axis = &joyry[port];
other_axis = &joyrx[port];
break;
default:
return false;
}
// Radial dead zone
// FIXME compute both axes at the same time
v = std::min(127, std::abs(v >> 8));
if ((float)(v * v + *other_axis * *other_axis) < input_mapper->dead_zone * input_mapper->dead_zone * 128.f * 128.f)
{
*this_axis = 0;
*other_axis = 0;
}
else
*this_axis = v * axisDirection;
}
else if (key != EMU_BTN_NONE && key <= DC_BTN_RELOAD) // Map triggers to digital buttons
{
//printf("B-AXIS %d Mapped to %d -> %d\n", key, value, v);
// TODO hysteresis?
if (std::abs(v) < 16384)
kcode[port] |= key; // button released
else
kcode[port] &= ~key; // button pressed
}
else if ((key & DC_BTN_GROUP_MASK) == EMU_BUTTONS) // Map triggers to emu buttons
{
int lastValue = lastAxisValue[port][key];
int newValue = std::abs(v);
if ((lastValue < 16384 && newValue >= 16384) || (lastValue >= 16384 && newValue < 16384))
handleButtonInput(port, key, newValue >= 16384);
lastAxisValue[port][key] = newValue;
}
else
return false;
return true;
};
bool rc = false;
if (_maple_port == 4)
{
for (u32 port = 0; port < 4; port++)
{
DreamcastKey key = input_mapper->get_axis_id(port, code, !positive);
handle_axis(port, key, 0);
key = input_mapper->get_axis_id(port, code, positive);
rc = handle_axis(port, key, value) || rc;
}
}
else
{
DreamcastKey key = input_mapper->get_axis_id(0, code, !positive);
// Reset opposite axis to 0
handle_axis(_maple_port, key, 0);
key = input_mapper->get_axis_id(0, code, positive);
rc = handle_axis(_maple_port, key, value);
}
return rc;
}
void GamepadDevice::load_system_mappings()
{
for (int i = 0; i < GetGamepadCount(); i++)
{
std::shared_ptr<GamepadDevice> gamepad = GetGamepad(i);
if (!gamepad->find_mapping())
gamepad->resetMappingToDefault(settings.platform.system != DC_PLATFORM_DREAMCAST, true);
}
}
std::string GamepadDevice::make_mapping_filename(bool instance, int system, bool perGame /* = false */)
{
std::string mapping_file = api_name() + "_" + name();
if (instance)
mapping_file += "-" + _unique_id;
if (perGame && !settings.content.gameId.empty())
mapping_file += "_" + settings.content.gameId;
if (system != DC_PLATFORM_DREAMCAST)
mapping_file += "_arcade";
std::replace(mapping_file.begin(), mapping_file.end(), '/', '-');
std::replace(mapping_file.begin(), mapping_file.end(), '\\', '-');
std::replace(mapping_file.begin(), mapping_file.end(), ':', '-');
std::replace(mapping_file.begin(), mapping_file.end(), '?', '-');
std::replace(mapping_file.begin(), mapping_file.end(), '*', '-');
std::replace(mapping_file.begin(), mapping_file.end(), '|', '-');
std::replace(mapping_file.begin(), mapping_file.end(), '"', '-');
std::replace(mapping_file.begin(), mapping_file.end(), '<', '-');
std::replace(mapping_file.begin(), mapping_file.end(), '>', '-');
mapping_file += ".cfg";
return mapping_file;
}
bool GamepadDevice::find_mapping(int system /* = settings.platform.system */)
{
if (!_remappable)
return true;
instanceMapping = false;
bool cloneMapping = false;
while (true)
{
bool perGame = !settings.content.gameId.empty();
while (true)
{
std::string mapping_file = make_mapping_filename(true, system, perGame);
input_mapper = InputMapping::LoadMapping(mapping_file);
if (!input_mapper)
{
mapping_file = make_mapping_filename(false, system, perGame);
input_mapper = InputMapping::LoadMapping(mapping_file);
}
else
{
instanceMapping = true;
}
if (!!input_mapper)
{
if (cloneMapping)
input_mapper = std::make_shared<InputMapping>(*input_mapper);
perGameMapping = perGame;
return true;
}
if (!perGame)
break;
perGame = false;
}
if (system == DC_PLATFORM_DREAMCAST)
break;
system = DC_PLATFORM_DREAMCAST;
cloneMapping = true;
}
return false;
}
int GamepadDevice::GetGamepadCount()
{
_gamepads_mutex.lock();
int count = _gamepads.size();
_gamepads_mutex.unlock();
return count;
}
std::shared_ptr<GamepadDevice> GamepadDevice::GetGamepad(int index)
{
_gamepads_mutex.lock();
std::shared_ptr<GamepadDevice> dev;
if (index >= 0 && index < (int)_gamepads.size())
dev = _gamepads[index];
else
dev = NULL;
_gamepads_mutex.unlock();
return dev;
}
void GamepadDevice::save_mapping(int system /* = settings.platform.system */)
{
if (!input_mapper)
return;
std::string filename = make_mapping_filename(instanceMapping, system, perGameMapping);
InputMapping::SaveMapping(filename, input_mapper);
}
void GamepadDevice::setPerGameMapping(bool enabled)
{
perGameMapping = enabled;
if (enabled)
input_mapper = std::make_shared<InputMapping>(*input_mapper);
else
{
auto deleteMapping = [this](bool instance, int system) {
std::string filename = make_mapping_filename(instance, system, true);
InputMapping::DeleteMapping(filename);
};
deleteMapping(false, DC_PLATFORM_DREAMCAST);
deleteMapping(false, DC_PLATFORM_NAOMI);
deleteMapping(true, DC_PLATFORM_DREAMCAST);
deleteMapping(true, DC_PLATFORM_NAOMI);
}
}
static void updateVibration(u32 port, float power, float inclination, u32 duration_ms)
{
int i = GamepadDevice::GetGamepadCount() - 1;
for ( ; i >= 0; i--)
{
std::shared_ptr<GamepadDevice> gamepad = GamepadDevice::GetGamepad(i);
if (gamepad != NULL && gamepad->maple_port() == (int)port && gamepad->is_rumble_enabled())
gamepad->rumble(power, inclination, duration_ms);
}
}
void GamepadDevice::detect_btn_input(input_detected_cb button_pressed)
{
_input_detected = button_pressed;
_detecting_button = true;
_detecting_axis = false;
_detection_start_time = os_GetSeconds() + 0.2;
}
void GamepadDevice::detect_axis_input(input_detected_cb axis_moved)
{
_input_detected = axis_moved;
_detecting_button = false;
_detecting_axis = true;
_detection_start_time = os_GetSeconds() + 0.2;
}
void GamepadDevice::detectButtonOrAxisInput(input_detected_cb input_changed)
{
_input_detected = input_changed;
_detecting_button = true;
_detecting_axis = true;
_detection_start_time = os_GetSeconds() + 0.2;
}
#ifdef TEST_AUTOMATION
static FILE *get_record_input(bool write)
{
if (write && !cfgLoadBool("record", "record_input", false))
return NULL;
if (!write && !cfgLoadBool("record", "replay_input", false))
return NULL;
std::string game_dir = settings.content.path;
size_t slash = game_dir.find_last_of("/");
size_t dot = game_dir.find_last_of(".");
std::string input_file = "scripts/" + game_dir.substr(slash + 1, dot - slash) + "input";
return nowide::fopen(input_file.c_str(), write ? "w" : "r");
}
#endif
void GamepadDevice::Register(const std::shared_ptr<GamepadDevice>& gamepad)
{
int maple_port = cfgLoadInt("input",
MAPLE_PORT_CFG_PREFIX + gamepad->unique_id(), 12345);
if (maple_port != 12345)
gamepad->set_maple_port(maple_port);
#ifdef TEST_AUTOMATION
if (record_input == NULL)
{
record_input = get_record_input(true);
if (record_input != NULL)
setbuf(record_input, NULL);
}
#endif
_gamepads_mutex.lock();
_gamepads.push_back(gamepad);
_gamepads_mutex.unlock();
MapleConfigMap::UpdateVibration = updateVibration;
}
void GamepadDevice::Unregister(const std::shared_ptr<GamepadDevice>& gamepad)
{
_gamepads_mutex.lock();
for (auto it = _gamepads.begin(); it != _gamepads.end(); it++)
if (*it == gamepad) {
_gamepads.erase(it);
break;
}
_gamepads_mutex.unlock();
}
void GamepadDevice::SaveMaplePorts()
{
for (int i = 0; i < GamepadDevice::GetGamepadCount(); i++)
{
std::shared_ptr<GamepadDevice> gamepad = GamepadDevice::GetGamepad(i);
if (gamepad != NULL && !gamepad->unique_id().empty())
cfgSaveInt("input", MAPLE_PORT_CFG_PREFIX + gamepad->unique_id(), gamepad->maple_port());
}
}
#ifdef TEST_AUTOMATION
#include "cfg/option.h"
static bool replay_inited;
FILE *replay_file;
u64 next_event;
u32 next_port;
u32 next_kcode;
bool do_screenshot;
void replay_input()
{
if (!replay_inited)
{
replay_file = get_record_input(false);
replay_inited = true;
}
u64 now = sh4_sched_now64();
if (config::UseReios)
{
// Account for the swirl time
if (config::Broadcast == 0)
now = std::max((int64_t)now - 2152626532L, 0L);
else
now = std::max((int64_t)now - 2191059108L, 0L);
}
if (replay_file == NULL)
{
if (next_event > 0 && now - next_event > SH4_MAIN_CLOCK * 5)
die("Automation time-out after 5 s\n");
return;
}
while (next_event <= now)
{
if (next_event > 0)
kcode[next_port] = next_kcode;
char action[32];
if (fscanf(replay_file, "%ld %s %x %x\n", &next_event, action, &next_port, &next_kcode) != 4)
{
fclose(replay_file);
replay_file = NULL;
NOTICE_LOG(INPUT, "Input replay terminated");
do_screenshot = true;
break;
}
}
}
#endif