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Split pad into it's own SDK library with the rest

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This commit is contained in:
Phillip Stephens 2025-04-14 17:31:48 -07:00
parent a600b0b84c
commit 4b9bcbb05e
5 changed files with 643 additions and 623 deletions
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1
CMakeLists.txt
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@ -7,6 +7,7 @@ add_subdirectory(extern)
include(cmake/aurora_core.cmake)
include(cmake/aurora_gx.cmake)
include(cmake/aurora_pad.cmake)
include(cmake/aurora_main.cmake)
include(cmake/aurora_mtx.cmake)
include(cmake/aurora_vi.cmake)

7
cmake/aurora_pad.cmake Normal file
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@ -0,0 +1,7 @@
add_library(aurora_pad STATIC lib/dolphin/pad/pad.cpp)
add_library(aurora::pad ALIAS aurora_pad)
target_include_directories(aurora_pad PUBLIC include)
target_link_libraries(aurora_pad PUBLIC aurora::core)
target_link_libraries(aurora_pad PRIVATE absl::flat_hash_map)

604
lib/dolphin/pad/pad.cpp Normal file
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@ -0,0 +1,604 @@
#include "../../input.hpp"
#include "../../internal.hpp"
#include <dolphin/pad.h>
#include <dolphin/si.h>
#include <array>
static constexpr std::array<PADButtonMapping, 12> mDefaultButtons{{
{SDL_GAMEPAD_BUTTON_SOUTH, PAD_BUTTON_A},
{SDL_GAMEPAD_BUTTON_EAST, PAD_BUTTON_B},
{SDL_GAMEPAD_BUTTON_WEST, PAD_BUTTON_X},
{SDL_GAMEPAD_BUTTON_NORTH, PAD_BUTTON_Y},
{SDL_GAMEPAD_BUTTON_START, PAD_BUTTON_START},
{SDL_GAMEPAD_BUTTON_BACK, PAD_TRIGGER_Z},
{SDL_GAMEPAD_BUTTON_LEFT_SHOULDER, PAD_TRIGGER_L},
{SDL_GAMEPAD_BUTTON_RIGHT_SHOULDER, PAD_TRIGGER_R},
{SDL_GAMEPAD_BUTTON_DPAD_UP, PAD_BUTTON_UP},
{SDL_GAMEPAD_BUTTON_DPAD_DOWN, PAD_BUTTON_DOWN},
{SDL_GAMEPAD_BUTTON_DPAD_LEFT, PAD_BUTTON_LEFT},
{SDL_GAMEPAD_BUTTON_DPAD_RIGHT, PAD_BUTTON_RIGHT},
}};
void PADSetSpec(u32 spec) {}
BOOL PADInit() {
return true;
}
BOOL PADRecalibrate(u32 mask) { return true; }
BOOL PADReset(u32 mask) { return true; }
void PADSetAnalogMode(u32 mode) {}
aurora::input::GameController* __PADGetControllerForIndex(uint32_t idx) {
if (idx >= aurora::input::g_GameControllers.size()) {
return nullptr;
}
uint32_t tmp = 0;
auto iter = aurora::input::g_GameControllers.begin();
while (tmp < idx) {
++iter;
++tmp;
}
if (iter == aurora::input::g_GameControllers.end()) {
return nullptr;
}
return &iter->second;
}
uint32_t PADCount() { return aurora::input::g_GameControllers.size(); }
const char* PADGetNameForControllerIndex(uint32_t idx) {
const auto* ctrl = __PADGetControllerForIndex(idx);
if (ctrl == nullptr) {
return nullptr;
}
return SDL_GetGamepadName(ctrl->m_controller);
}
void PADSetPortForIndex(uint32_t idx, int32_t port) {
auto* ctrl = __PADGetControllerForIndex(idx);
auto* dest = aurora::input::get_controller_for_player(port);
if (ctrl == nullptr) {
return;
}
if (dest != nullptr) {
SDL_SetGamepadPlayerIndex(dest->m_controller, -1);
}
SDL_SetGamepadPlayerIndex(ctrl->m_controller, port);
}
int32_t PADGetIndexForPort(uint32_t port) {
auto* ctrl = aurora::input::get_controller_for_player(port);
if (ctrl == nullptr) {
return -1;
}
int32_t index = 0;
for (auto iter = aurora::input::g_GameControllers.begin(); iter != aurora::input::g_GameControllers.end();
++iter, ++index) {
if (&iter->second == ctrl) {
break;
}
}
return index;
}
void PADClearPort(uint32_t port) {
auto* ctrl = aurora::input::get_controller_for_player(port);
if (ctrl == nullptr) {
return;
}
SDL_SetGamepadPlayerIndex(ctrl->m_controller, -1);
}
void __PADLoadMapping(aurora::input::GameController* controller) {
int32_t playerIndex = SDL_GetGamepadPlayerIndex(controller->m_controller);
if (playerIndex == -1) {
return;
}
std::string basePath{aurora::g_config.configPath};
if (!controller->m_mappingLoaded) {
controller->m_mapping = mDefaultButtons;
}
controller->m_mappingLoaded = true;
auto path = fmt::format("{}/{}_{:04X}_{:04X}.controller", basePath, PADGetName(playerIndex),
controller->m_vid, controller->m_pid);
FILE* file = fopen(path.c_str(), "rb");
if (file == nullptr) {
return;
}
uint32_t magic = 0;
fread(&magic, 1, sizeof(uint32_t), file);
if (magic != SBIG('CTRL')) {
aurora::input::Log.warn("Invalid controller mapping magic!");
return;
}
uint32_t version = 0;
fread(&version, 1, sizeof(uint32_t), file);
if (version != 1) {
aurora::input::Log.warn("Invalid controller mapping version!");
return;
}
bool isGameCube = false;
fread(&isGameCube, 1, 1, file);
fseek(file, (ftell(file) + 31) & ~31, SEEK_SET);
uint32_t dataStart = ftell(file);
if (isGameCube) {
fseek(file, dataStart + ((sizeof(PADDeadZones) + sizeof(PADButtonMapping)) * playerIndex), SEEK_SET);
}
fread(&controller->m_deadZones, 1, sizeof(PADDeadZones), file);
fread(&controller->m_mapping, 1, sizeof(PADButtonMapping) * controller->m_mapping.size(), file);
fclose(file);
}
bool gBlockPAD = false;
uint32_t PADRead(PADStatus* status) {
if (gBlockPAD) {
return 0;
}
uint32_t rumbleSupport = 0;
for (uint32_t i = 0; i < 4; ++i) {
memset(&status[i], 0, sizeof(PADStatus));
auto controller = aurora::input::get_controller_for_player(i);
if (controller == nullptr) {
status[i].err = PAD_ERR_NO_CONTROLLER;
continue;
}
if (!controller->m_mappingLoaded) {
__PADLoadMapping(controller);
}
status[i].err = PAD_ERR_NONE;
std::for_each(
controller->m_mapping.begin(), controller->m_mapping.end(), [&controller, &i, &status](const auto& mapping) {
if (SDL_GetGamepadButton(controller->m_controller, static_cast<SDL_GamepadButton>(mapping.nativeButton))) {
status[i].button |= mapping.padButton;
}
});
Sint16 x = SDL_GetGamepadAxis(controller->m_controller, SDL_GAMEPAD_AXIS_LEFTX);
Sint16 y = SDL_GetGamepadAxis(controller->m_controller, SDL_GAMEPAD_AXIS_LEFTY);
if (controller->m_deadZones.useDeadzones) {
if (std::abs(x) > controller->m_deadZones.stickDeadZone) {
x /= 256;
} else {
x = 0;
}
if (std::abs(y) > controller->m_deadZones.stickDeadZone) {
y = (-(y + 1u)) / 256u;
} else {
y = 0;
}
} else {
x /= 256;
y = (-(y + 1u)) / 256u;
}
status[i].stickX = static_cast<int8_t>(x);
status[i].stickY = static_cast<int8_t>(y);
x = SDL_GetGamepadAxis(controller->m_controller, SDL_GAMEPAD_AXIS_RIGHTX);
y = SDL_GetGamepadAxis(controller->m_controller, SDL_GAMEPAD_AXIS_RIGHTY);
if (controller->m_deadZones.useDeadzones) {
if (std::abs(x) > controller->m_deadZones.substickDeadZone) {
x /= 256;
} else {
x = 0;
}
if (std::abs(y) > controller->m_deadZones.substickDeadZone) {
y = (-(y + 1u)) / 256u;
} else {
y = 0;
}
} else {
x /= 256;
y = (-(y + 1u)) / 256u;
}
status[i].substickX = static_cast<int8_t>(x);
status[i].substickY = static_cast<int8_t>(y);
x = SDL_GetGamepadAxis(controller->m_controller, SDL_GAMEPAD_AXIS_LEFT_TRIGGER);
y = SDL_GetGamepadAxis(controller->m_controller, SDL_GAMEPAD_AXIS_RIGHT_TRIGGER);
if (/*!controller->m_isGameCube && */ controller->m_deadZones.emulateTriggers) {
if (x > controller->m_deadZones.leftTriggerActivationZone) {
status[i].button |= PAD_TRIGGER_L;
}
if (y > controller->m_deadZones.rightTriggerActivationZone) {
status[i].button |= PAD_TRIGGER_R;
}
}
x /= 128;
y /= 128;
status[i].triggerL = static_cast<int8_t>(x);
status[i].triggerR = static_cast<int8_t>(y);
if (controller->m_hasRumble) {
rumbleSupport |= PAD_CHAN0_BIT >> i;
}
}
return rumbleSupport;
}
void PADControlMotor(int32_t chan, uint32_t command) {
auto controller = aurora::input::get_controller_for_player(chan);
auto instance = aurora::input::get_instance_for_player(chan);
if (controller == nullptr) {
return;
}
if (controller->m_isGameCube) {
if (command == PAD_MOTOR_STOP) {
aurora::input::controller_rumble(instance, 0, 1, 0);
} else if (command == PAD_MOTOR_RUMBLE) {
aurora::input::controller_rumble(instance, 1, 1, 0);
} else if (command == PAD_MOTOR_STOP_HARD) {
aurora::input::controller_rumble(instance, 0, 0, 0);
}
} else {
if (command == PAD_MOTOR_STOP) {
aurora::input::controller_rumble(instance, 0, 0, 1);
} else if (command == PAD_MOTOR_RUMBLE) {
aurora::input::controller_rumble(instance, 32767, 32767, 0);
} else if (command == PAD_MOTOR_STOP_HARD) {
aurora::input::controller_rumble(instance, 0, 0, 0);
}
}
}
void PADControlAllMotors(const uint32_t* commands) {
for (uint32_t i = 0; i < 4; ++i) {
PADControlMotor(i, commands[i]);
}
}
uint32_t SIProbe(int32_t chan) {
auto* const controller = aurora::input::get_controller_for_player(chan);
if (controller == nullptr) {
return SI_ERROR_NO_RESPONSE;
}
if (controller->m_isGameCube) {
auto level = SDL_GetJoystickPowerInfo(SDL_GetGamepadJoystick(controller->m_controller), nullptr);
if (level == SDL_POWERSTATE_UNKNOWN) {
return SI_GC_WAVEBIRD;
}
}
return SI_GC_CONTROLLER;
}
struct PADCLampRegion {
uint8_t minTrigger;
uint8_t maxTrigger;
int8_t minStick;
int8_t maxStick;
int8_t xyStick;
int8_t minSubstick;
int8_t maxSubstick;
int8_t xySubstick;
int8_t radStick;
int8_t radSubstick;
};
static constexpr PADCLampRegion ClampRegion{
// Triggers
30,
180,
// Left stick
15,
72,
40,
// Right stick
15,
59,
31,
// Stick radii
56,
44,
};
void ClampTrigger(uint8_t* trigger, uint8_t min, uint8_t max) {
if (*trigger <= min) {
*trigger = 0;
} else {
if (*trigger > max) {
*trigger = max;
}
*trigger -= min;
}
}
void ClampCircle(int8_t* px, int8_t* py, int8_t radius, int8_t min) {
int x = *px;
int y = *py;
if (-min < x && x < min) {
x = 0;
} else if (0 < x) {
x -= min;
} else {
x += min;
}
if (-min < y && y < min) {
y = 0;
} else if (0 < y) {
y -= min;
} else {
y += min;
}
int squared = x * x + y * y;
if (radius * radius < squared) {
int32_t length = static_cast<int32_t>(std::sqrt(squared));
x = (x * radius) / length;
y = (y * radius) / length;
}
*px = static_cast<int8_t>(x);
*py = static_cast<int8_t>(y);
}
void ClampStick(int8_t* px, int8_t* py, int8_t max, int8_t xy, int8_t min) {
int32_t x = *px;
int32_t y = *py;
int32_t signX = 0;
if (0 <= x) {
signX = 1;
} else {
signX = -1;
x = -x;
}
int8_t signY = 0;
if (0 <= y) {
signY = 1;
} else {
signY = -1;
y = -y;
}
if (x <= min) {
x = 0;
} else {
x -= min;
}
if (y <= min) {
y = 0;
} else {
y -= min;
}
if (x == 0 && y == 0) {
*px = *py = 0;
return;
}
if (xy * y <= xy * x) {
int32_t d = xy * x + (max - xy) * y;
if (xy * max < d) {
x = (xy * max * x / d);
y = (xy * max * y / d);
}
} else {
int32_t d = xy * y + (max - xy) * x;
if (xy * max < d) {
x = (xy * max * x / d);
y = (xy * max * y / d);
}
}
*px = (signX * x);
*py = (signY * y);
}
void PADClamp(PADStatus* status) {
for (uint32_t i = 0; i < 4; ++i) {
if (status[i].err != PAD_ERR_NONE) {
continue;
}
ClampStick(&status[i].stickX, &status[i].stickY, ClampRegion.maxStick, ClampRegion.xyStick, ClampRegion.minStick);
ClampStick(&status[i].substickX, &status[i].substickY, ClampRegion.maxSubstick, ClampRegion.xySubstick,
ClampRegion.minSubstick);
ClampTrigger(&status[i].triggerL, ClampRegion.minTrigger, ClampRegion.maxTrigger);
ClampTrigger(&status[i].triggerR, ClampRegion.minTrigger, ClampRegion.maxTrigger);
}
}
void PADClampCircle(PADStatus* status) {
for (uint32_t i = 0; i < 4; ++i) {
if (status[i].err != PAD_ERR_NONE) {
continue;
}
ClampCircle(&status[i].stickX, &status[i].stickY, ClampRegion.radStick, ClampRegion.minStick);
ClampCircle(&status[i].substickX, &status[i].substickY, ClampRegion.radSubstick, ClampRegion.minSubstick);
ClampTrigger(&status[i].triggerL, ClampRegion.minTrigger, ClampRegion.maxTrigger);
ClampTrigger(&status[i].triggerR, ClampRegion.minTrigger, ClampRegion.maxTrigger);
}
}
void PADGetVidPid(uint32_t port, uint32_t* vid, uint32_t* pid) {
*vid = 0;
*pid = 0;
auto* controller = aurora::input::get_controller_for_player(port);
if (controller == nullptr) {
return;
}
*vid = controller->m_vid;
*pid = controller->m_pid;
}
const char* PADGetName(uint32_t port) {
auto* controller = aurora::input::get_controller_for_player(port);
if (controller == nullptr) {
return nullptr;
}
return SDL_GetGamepadName(controller->m_controller);
}
void PADSetButtonMapping(uint32_t port, PADButtonMapping mapping) {
auto* controller = aurora::input::get_controller_for_player(port);
if (controller == nullptr) {
return;
}
auto iter = std::find_if(controller->m_mapping.begin(), controller->m_mapping.end(),
[mapping](const auto& pair) { return mapping.padButton == pair.padButton; });
if (iter == controller->m_mapping.end()) {
return;
}
*iter = mapping;
}
void PADSetAllButtonMappings(uint32_t port, PADButtonMapping buttons[12]) {
for (uint32_t i = 0; i < 12; ++i) {
PADSetButtonMapping(port, buttons[i]);
}
}
PADButtonMapping* PADGetButtonMappings(uint32_t port, uint32_t* buttonCount) {
auto* controller = aurora::input::get_controller_for_player(port);
if (controller == nullptr) {
*buttonCount = 0;
return nullptr;
}
*buttonCount = controller->m_mapping.size();
return controller->m_mapping.data();
}
void __PADWriteDeadZones(FILE* file, aurora::input::GameController& controller) {
fwrite(&controller.m_deadZones, 1, sizeof(PADDeadZones), file);
}
void PADSerializeMappings() {
std::string basePath{aurora::g_config.configPath};
bool wroteGameCubeAlready = false;
for (auto& controller : aurora::input::g_GameControllers) {
if (!controller.second.m_mappingLoaded) {
__PADLoadMapping(&controller.second);
}
FILE* file = fopen(fmt::format("{}/{}_{:04X}_{:04X}.controller", basePath,
aurora::input::controller_name(controller.second.m_index), controller.second.m_vid,
controller.second.m_pid)
.c_str(),
"wb");
if (file == nullptr) {
return;
}
uint32_t magic = SBIG('CTRL');
uint32_t version = 1;
fwrite(&magic, 1, sizeof(magic), file);
fwrite(&version, 1, sizeof(magic), file);
fwrite(&controller.second.m_isGameCube, 1, 1, file);
fseek(file, (ftell(file) + 31) & ~31, SEEK_SET);
int32_t dataStart = ftell(file);
if (!controller.second.m_isGameCube) {
__PADWriteDeadZones(file, controller.second);
fwrite(controller.second.m_mapping.data(), 1, sizeof(PADButtonMapping) * controller.second.m_mapping.size(),
file);
} else {
if (!wroteGameCubeAlready) {
for (uint32_t i = 0; i < 4; ++i) {
/* Just use the current controller's configs for this */
__PADWriteDeadZones(file, controller.second);
fwrite(mDefaultButtons.data(), 1, sizeof(PADButtonMapping) * mDefaultButtons.size(), file);
}
fflush(file);
wroteGameCubeAlready = true;
}
uint32_t port = aurora::input::player_index(controller.second.m_index);
fseek(file, dataStart + ((sizeof(PADDeadZones) + sizeof(PADButtonMapping)) * port), SEEK_SET);
__PADWriteDeadZones(file, controller.second);
fwrite(controller.second.m_mapping.data(), 1, sizeof(PADButtonMapping) * controller.second.m_mapping.size(),
file);
}
fclose(file);
}
}
PADDeadZones* PADGetDeadZones(uint32_t port) {
auto* controller = aurora::input::get_controller_for_player(port);
if (controller == nullptr) {
return nullptr;
}
return &controller->m_deadZones;
}
static constexpr std::array<std::pair<PADButton, std::string_view>, 12> skButtonNames = {{
{PAD_BUTTON_LEFT, "Left"sv},
{PAD_BUTTON_RIGHT, "Right"sv},
{PAD_BUTTON_DOWN, "Down"sv},
{PAD_BUTTON_UP, "Up"sv},
{PAD_TRIGGER_Z, "Z"sv},
{PAD_TRIGGER_R, "R"sv},
{PAD_TRIGGER_L, "L"sv},
{PAD_BUTTON_A, "A"sv},
{PAD_BUTTON_B, "B"sv},
{PAD_BUTTON_X, "X"sv},
{PAD_BUTTON_Y, "Y"sv},
{PAD_BUTTON_START, "Start"sv},
}};
const char* PADGetButtonName(PADButton button) {
auto it = std::find_if(skButtonNames.begin(), skButtonNames.end(),
[&button](const auto& pair) { return button == pair.first; });
if (it != skButtonNames.end()) {
return it->second.data();
}
return nullptr;
}
const char* PADGetNativeButtonName(uint32_t button) {
return SDL_GetGamepadStringForButton(static_cast<SDL_GamepadButton>(button));
}
int32_t PADGetNativeButtonPressed(uint32_t port) {
auto* controller = aurora::input::get_controller_for_player(port);
if (controller == nullptr) {
return -1;
}
for (uint32_t i = 0; i < SDL_GAMEPAD_BUTTON_COUNT; ++i) {
if (SDL_GetGamepadButton(controller->m_controller, static_cast<SDL_GamepadButton>(i)) != 0u) {
return i;
}
}
return -1;
}
void PADRestoreDefaultMapping(uint32_t port) {
auto* controller = aurora::input::get_controller_for_player(port);
if (controller == nullptr) {
return;
}
controller->m_mapping = mDefaultButtons;
}
void PADBlockInput(bool block) { gBlockPAD = block; }

623
lib/input.cpp
View File

@ -3,9 +3,6 @@
#include "magic_enum.hpp"
#include <dolphin/pad.h>
#include <dolphin/si.h>
#include <SDL3/SDL_haptic.h>
#include <SDL3/SDL_version.h>
#include <SDL3/SDL.h>
@ -18,29 +15,7 @@
using namespace std::string_view_literals;
namespace aurora::input {
static Module Log("aurora::input");
struct GameController {
SDL_Gamepad* m_controller = nullptr;
bool m_isGameCube = false;
Sint32 m_index = -1;
bool m_hasRumble = false;
PADDeadZones m_deadZones{
.emulateTriggers = true,
.useDeadzones = true,
.stickDeadZone = 8000,
.substickDeadZone = 8000,
.leftTriggerActivationZone = 31150,
.rightTriggerActivationZone = 31150,
};
uint16_t m_vid = 0;
uint16_t m_pid = 0;
std::array<PADButtonMapping, 12> m_mapping{};
bool m_mappingLoaded = false;
constexpr bool operator==(const GameController& other) const {
return m_controller == other.m_controller && m_index == other.m_index;
}
};
Module Log("aurora::input");
absl::flat_hash_map<Uint32, GameController> g_GameControllers;
GameController* get_controller_for_player(uint32_t player) noexcept {
@ -229,599 +204,3 @@ void initialize() noexcept {
SDL_GetError());
}
} // namespace aurora::input
static const std::array<PADButtonMapping, 12> mDefaultButtons{{
{SDL_GAMEPAD_BUTTON_SOUTH, PAD_BUTTON_A},
{SDL_GAMEPAD_BUTTON_EAST, PAD_BUTTON_B},
{SDL_GAMEPAD_BUTTON_WEST, PAD_BUTTON_X},
{SDL_GAMEPAD_BUTTON_NORTH, PAD_BUTTON_Y},
{SDL_GAMEPAD_BUTTON_START, PAD_BUTTON_START},
{SDL_GAMEPAD_BUTTON_BACK, PAD_TRIGGER_Z},
{SDL_GAMEPAD_BUTTON_LEFT_SHOULDER, PAD_TRIGGER_L},
{SDL_GAMEPAD_BUTTON_RIGHT_SHOULDER, PAD_TRIGGER_R},
{SDL_GAMEPAD_BUTTON_DPAD_UP, PAD_BUTTON_UP},
{SDL_GAMEPAD_BUTTON_DPAD_DOWN, PAD_BUTTON_DOWN},
{SDL_GAMEPAD_BUTTON_DPAD_LEFT, PAD_BUTTON_LEFT},
{SDL_GAMEPAD_BUTTON_DPAD_RIGHT, PAD_BUTTON_RIGHT},
}};
void PADSetSpec(u32 spec) {}
BOOL PADInit() { return true; }
BOOL PADRecalibrate(u32 mask) { return true; }
BOOL PADReset(u32 mask) { return true; }
void PADSetAnalogMode(u32 mode) {}
aurora::input::GameController* __PADGetControllerForIndex(uint32_t idx) {
if (idx >= aurora::input::g_GameControllers.size()) {
return nullptr;
}
uint32_t tmp = 0;
auto iter = aurora::input::g_GameControllers.begin();
while (tmp < idx) {
++iter;
++tmp;
}
if (iter == aurora::input::g_GameControllers.end()) {
return nullptr;
}
return &iter->second;
}
uint32_t PADCount() { return aurora::input::g_GameControllers.size(); }
const char* PADGetNameForControllerIndex(uint32_t idx) {
auto* ctrl = __PADGetControllerForIndex(idx);
if (ctrl == nullptr) {
return nullptr;
}
return SDL_GetGamepadName(ctrl->m_controller);
}
void PADSetPortForIndex(uint32_t idx, int32_t port) {
auto* ctrl = __PADGetControllerForIndex(idx);
auto* dest = aurora::input::get_controller_for_player(port);
if (ctrl == nullptr) {
return;
}
if (dest != nullptr) {
SDL_SetGamepadPlayerIndex(dest->m_controller, -1);
}
SDL_SetGamepadPlayerIndex(ctrl->m_controller, port);
}
int32_t PADGetIndexForPort(uint32_t port) {
auto* ctrl = aurora::input::get_controller_for_player(port);
if (ctrl == nullptr) {
return -1;
}
int32_t index = 0;
for (auto iter = aurora::input::g_GameControllers.begin(); iter != aurora::input::g_GameControllers.end();
++iter, ++index) {
if (&iter->second == ctrl) {
break;
}
}
return index;
}
void PADClearPort(uint32_t port) {
auto* ctrl = aurora::input::get_controller_for_player(port);
if (ctrl == nullptr) {
return;
}
SDL_SetGamepadPlayerIndex(ctrl->m_controller, -1);
}
void __PADLoadMapping(aurora::input::GameController* controller) {
int32_t playerIndex = SDL_GetGamepadPlayerIndex(controller->m_controller);
if (playerIndex == -1) {
return;
}
std::string basePath{aurora::g_config.configPath};
if (!controller->m_mappingLoaded) {
controller->m_mapping = mDefaultButtons;
}
controller->m_mappingLoaded = true;
auto path = fmt::format("{}/{}_{:04X}_{:04X}.controller", basePath, PADGetName(playerIndex),
controller->m_vid, controller->m_pid);
FILE* file = fopen(path.c_str(), "rb");
if (file == nullptr) {
return;
}
uint32_t magic = 0;
fread(&magic, 1, sizeof(uint32_t), file);
if (magic != SBIG('CTRL')) {
aurora::input::Log.warn("Invalid controller mapping magic!");
return;
}
uint32_t version = 0;
fread(&version, 1, sizeof(uint32_t), file);
if (version != 1) {
aurora::input::Log.warn("Invalid controller mapping version!");
return;
}
bool isGameCube = false;
fread(&isGameCube, 1, 1, file);
fseek(file, (ftell(file) + 31) & ~31, SEEK_SET);
uint32_t dataStart = ftell(file);
if (isGameCube) {
fseek(file, dataStart + ((sizeof(PADDeadZones) + sizeof(PADButtonMapping)) * playerIndex), SEEK_SET);
}
fread(&controller->m_deadZones, 1, sizeof(PADDeadZones), file);
fread(&controller->m_mapping, 1, sizeof(PADButtonMapping) * controller->m_mapping.size(), file);
fclose(file);
}
bool gBlockPAD = false;
uint32_t PADRead(PADStatus* status) {
if (gBlockPAD) {
return 0;
}
uint32_t rumbleSupport = 0;
for (uint32_t i = 0; i < 4; ++i) {
memset(&status[i], 0, sizeof(PADStatus));
auto controller = aurora::input::get_controller_for_player(i);
if (controller == nullptr) {
status[i].err = PAD_ERR_NO_CONTROLLER;
continue;
}
if (!controller->m_mappingLoaded) {
__PADLoadMapping(controller);
}
status[i].err = PAD_ERR_NONE;
std::for_each(
controller->m_mapping.begin(), controller->m_mapping.end(), [&controller, &i, &status](const auto& mapping) {
if (SDL_GetGamepadButton(controller->m_controller, static_cast<SDL_GamepadButton>(mapping.nativeButton))) {
status[i].button |= mapping.padButton;
}
});
Sint16 x = SDL_GetGamepadAxis(controller->m_controller, SDL_GAMEPAD_AXIS_LEFTX);
Sint16 y = SDL_GetGamepadAxis(controller->m_controller, SDL_GAMEPAD_AXIS_LEFTY);
if (controller->m_deadZones.useDeadzones) {
if (std::abs(x) > controller->m_deadZones.stickDeadZone) {
x /= 256;
} else {
x = 0;
}
if (std::abs(y) > controller->m_deadZones.stickDeadZone) {
y = (-(y + 1u)) / 256u;
} else {
y = 0;
}
} else {
x /= 256;
y = (-(y + 1u)) / 256u;
}
status[i].stickX = static_cast<int8_t>(x);
status[i].stickY = static_cast<int8_t>(y);
x = SDL_GetGamepadAxis(controller->m_controller, SDL_GAMEPAD_AXIS_RIGHTX);
y = SDL_GetGamepadAxis(controller->m_controller, SDL_GAMEPAD_AXIS_RIGHTY);
if (controller->m_deadZones.useDeadzones) {
if (std::abs(x) > controller->m_deadZones.substickDeadZone) {
x /= 256;
} else {
x = 0;
}
if (std::abs(y) > controller->m_deadZones.substickDeadZone) {
y = (-(y + 1u)) / 256u;
} else {
y = 0;
}
} else {
x /= 256;
y = (-(y + 1u)) / 256u;
}
status[i].substickX = static_cast<int8_t>(x);
status[i].substickY = static_cast<int8_t>(y);
x = SDL_GetGamepadAxis(controller->m_controller, SDL_GAMEPAD_AXIS_LEFT_TRIGGER);
y = SDL_GetGamepadAxis(controller->m_controller, SDL_GAMEPAD_AXIS_RIGHT_TRIGGER);
if (/*!controller->m_isGameCube && */ controller->m_deadZones.emulateTriggers) {
if (x > controller->m_deadZones.leftTriggerActivationZone) {
status[i].button |= PAD_TRIGGER_L;
}
if (y > controller->m_deadZones.rightTriggerActivationZone) {
status[i].button |= PAD_TRIGGER_R;
}
}
x /= 128;
y /= 128;
status[i].triggerL = static_cast<int8_t>(x);
status[i].triggerR = static_cast<int8_t>(y);
if (controller->m_hasRumble) {
rumbleSupport |= PAD_CHAN0_BIT >> i;
}
}
return rumbleSupport;
}
void PADControlMotor(int32_t chan, uint32_t command) {
auto controller = aurora::input::get_controller_for_player(chan);
auto instance = aurora::input::get_instance_for_player(chan);
if (controller == nullptr) {
return;
}
if (controller->m_isGameCube) {
if (command == PAD_MOTOR_STOP) {
aurora::input::controller_rumble(instance, 0, 1, 0);
} else if (command == PAD_MOTOR_RUMBLE) {
aurora::input::controller_rumble(instance, 1, 1, 0);
} else if (command == PAD_MOTOR_STOP_HARD) {
aurora::input::controller_rumble(instance, 0, 0, 0);
}
} else {
if (command == PAD_MOTOR_STOP) {
aurora::input::controller_rumble(instance, 0, 0, 1);
} else if (command == PAD_MOTOR_RUMBLE) {
aurora::input::controller_rumble(instance, 32767, 32767, 0);
} else if (command == PAD_MOTOR_STOP_HARD) {
aurora::input::controller_rumble(instance, 0, 0, 0);
}
}
}
void PADControlAllMotors(const uint32_t* commands) {
for (uint32_t i = 0; i < 4; ++i) {
PADControlMotor(i, commands[i]);
}
}
uint32_t SIProbe(int32_t chan) {
auto* const controller = aurora::input::get_controller_for_player(chan);
if (controller == nullptr) {
return SI_ERROR_NO_RESPONSE;
}
if (controller->m_isGameCube) {
auto level = SDL_GetJoystickPowerInfo(SDL_GetGamepadJoystick(controller->m_controller), nullptr);
if (level == SDL_POWERSTATE_UNKNOWN) {
return SI_GC_WAVEBIRD;
}
}
return SI_GC_CONTROLLER;
}
struct PADCLampRegion {
uint8_t minTrigger;
uint8_t maxTrigger;
int8_t minStick;
int8_t maxStick;
int8_t xyStick;
int8_t minSubstick;
int8_t maxSubstick;
int8_t xySubstick;
int8_t radStick;
int8_t radSubstick;
};
static constexpr PADCLampRegion ClampRegion{
// Triggers
30,
180,
// Left stick
15,
72,
40,
// Right stick
15,
59,
31,
// Stick radii
56,
44,
};
void ClampTrigger(uint8_t* trigger, uint8_t min, uint8_t max) {
if (*trigger <= min) {
*trigger = 0;
} else {
if (*trigger > max) {
*trigger = max;
}
*trigger -= min;
}
}
void ClampCircle(int8_t* px, int8_t* py, int8_t radius, int8_t min) {
int x = *px;
int y = *py;
if (-min < x && x < min) {
x = 0;
} else if (0 < x) {
x -= min;
} else {
x += min;
}
if (-min < y && y < min) {
y = 0;
} else if (0 < y) {
y -= min;
} else {
y += min;
}
int squared = x * x + y * y;
if (radius * radius < squared) {
int32_t length = static_cast<int32_t>(std::sqrt(squared));
x = (x * radius) / length;
y = (y * radius) / length;
}
*px = static_cast<int8_t>(x);
*py = static_cast<int8_t>(y);
}
void ClampStick(int8_t* px, int8_t* py, int8_t max, int8_t xy, int8_t min) {
int32_t x = *px;
int32_t y = *py;
int32_t signX = 0;
if (0 <= x) {
signX = 1;
} else {
signX = -1;
x = -x;
}
int8_t signY = 0;
if (0 <= y) {
signY = 1;
} else {
signY = -1;
y = -y;
}
if (x <= min) {
x = 0;
} else {
x -= min;
}
if (y <= min) {
y = 0;
} else {
y -= min;
}
if (x == 0 && y == 0) {
*px = *py = 0;
return;
}
if (xy * y <= xy * x) {
int32_t d = xy * x + (max - xy) * y;
if (xy * max < d) {
x = (xy * max * x / d);
y = (xy * max * y / d);
}
} else {
int32_t d = xy * y + (max - xy) * x;
if (xy * max < d) {
x = (xy * max * x / d);
y = (xy * max * y / d);
}
}
*px = (signX * x);
*py = (signY * y);
}
void PADClamp(PADStatus* status) {
for (uint32_t i = 0; i < 4; ++i) {
if (status[i].err != PAD_ERR_NONE) {
continue;
}
ClampStick(&status[i].stickX, &status[i].stickY, ClampRegion.maxStick, ClampRegion.xyStick, ClampRegion.minStick);
ClampStick(&status[i].substickX, &status[i].substickY, ClampRegion.maxSubstick, ClampRegion.xySubstick,
ClampRegion.minSubstick);
ClampTrigger(&status[i].triggerL, ClampRegion.minTrigger, ClampRegion.maxTrigger);
ClampTrigger(&status[i].triggerR, ClampRegion.minTrigger, ClampRegion.maxTrigger);
}
}
void PADClampCircle(PADStatus* status) {
for (uint32_t i = 0; i < 4; ++i) {
if (status[i].err != PAD_ERR_NONE) {
continue;
}
ClampCircle(&status[i].stickX, &status[i].stickY, ClampRegion.radStick, ClampRegion.minStick);
ClampCircle(&status[i].substickX, &status[i].substickY, ClampRegion.radSubstick, ClampRegion.minSubstick);
ClampTrigger(&status[i].triggerL, ClampRegion.minTrigger, ClampRegion.maxTrigger);
ClampTrigger(&status[i].triggerR, ClampRegion.minTrigger, ClampRegion.maxTrigger);
}
}
void PADGetVidPid(uint32_t port, uint32_t* vid, uint32_t* pid) {
*vid = 0;
*pid = 0;
auto* controller = aurora::input::get_controller_for_player(port);
if (controller == nullptr) {
return;
}
*vid = controller->m_vid;
*pid = controller->m_pid;
}
const char* PADGetName(uint32_t port) {
auto* controller = aurora::input::get_controller_for_player(port);
if (controller == nullptr) {
return nullptr;
}
return SDL_GetGamepadName(controller->m_controller);
}
void PADSetButtonMapping(uint32_t port, PADButtonMapping mapping) {
auto* controller = aurora::input::get_controller_for_player(port);
if (controller == nullptr) {
return;
}
auto iter = std::find_if(controller->m_mapping.begin(), controller->m_mapping.end(),
[mapping](const auto& pair) { return mapping.padButton == pair.padButton; });
if (iter == controller->m_mapping.end()) {
return;
}
*iter = mapping;
}
void PADSetAllButtonMappings(uint32_t port, PADButtonMapping buttons[12]) {
for (uint32_t i = 0; i < 12; ++i) {
PADSetButtonMapping(port, buttons[i]);
}
}
PADButtonMapping* PADGetButtonMappings(uint32_t port, uint32_t* buttonCount) {
auto* controller = aurora::input::get_controller_for_player(port);
if (controller == nullptr) {
*buttonCount = 0;
return nullptr;
}
*buttonCount = controller->m_mapping.size();
return controller->m_mapping.data();
}
void __PADWriteDeadZones(FILE* file, aurora::input::GameController& controller) {
fwrite(&controller.m_deadZones, 1, sizeof(PADDeadZones), file);
}
void PADSerializeMappings() {
std::string basePath{aurora::g_config.configPath};
bool wroteGameCubeAlready = false;
for (auto& controller : aurora::input::g_GameControllers) {
if (!controller.second.m_mappingLoaded) {
__PADLoadMapping(&controller.second);
}
FILE* file = fopen(fmt::format("{}/{}_{:04X}_{:04X}.controller", basePath,
aurora::input::controller_name(controller.second.m_index), controller.second.m_vid,
controller.second.m_pid)
.c_str(),
"wb");
if (file == nullptr) {
return;
}
uint32_t magic = SBIG('CTRL');
uint32_t version = 1;
fwrite(&magic, 1, sizeof(magic), file);
fwrite(&version, 1, sizeof(magic), file);
fwrite(&controller.second.m_isGameCube, 1, 1, file);
fseek(file, (ftell(file) + 31) & ~31, SEEK_SET);
int32_t dataStart = ftell(file);
if (!controller.second.m_isGameCube) {
__PADWriteDeadZones(file, controller.second);
fwrite(controller.second.m_mapping.data(), 1, sizeof(PADButtonMapping) * controller.second.m_mapping.size(),
file);
} else {
if (!wroteGameCubeAlready) {
for (uint32_t i = 0; i < 4; ++i) {
/* Just use the current controller's configs for this */
__PADWriteDeadZones(file, controller.second);
fwrite(mDefaultButtons.data(), 1, sizeof(PADButtonMapping) * mDefaultButtons.size(), file);
}
fflush(file);
wroteGameCubeAlready = true;
}
uint32_t port = aurora::input::player_index(controller.second.m_index);
fseek(file, dataStart + ((sizeof(PADDeadZones) + sizeof(PADButtonMapping)) * port), SEEK_SET);
__PADWriteDeadZones(file, controller.second);
fwrite(controller.second.m_mapping.data(), 1, sizeof(PADButtonMapping) * controller.second.m_mapping.size(),
file);
}
fclose(file);
}
}
PADDeadZones* PADGetDeadZones(uint32_t port) {
auto* controller = aurora::input::get_controller_for_player(port);
if (controller == nullptr) {
return nullptr;
}
return &controller->m_deadZones;
}
static constexpr std::array<std::pair<PADButton, std::string_view>, 12> skButtonNames = {{
{PAD_BUTTON_LEFT, "Left"sv},
{PAD_BUTTON_RIGHT, "Right"sv},
{PAD_BUTTON_DOWN, "Down"sv},
{PAD_BUTTON_UP, "Up"sv},
{PAD_TRIGGER_Z, "Z"sv},
{PAD_TRIGGER_R, "R"sv},
{PAD_TRIGGER_L, "L"sv},
{PAD_BUTTON_A, "A"sv},
{PAD_BUTTON_B, "B"sv},
{PAD_BUTTON_X, "X"sv},
{PAD_BUTTON_Y, "Y"sv},
{PAD_BUTTON_START, "Start"sv},
}};
const char* PADGetButtonName(PADButton button) {
auto it = std::find_if(skButtonNames.begin(), skButtonNames.end(),
[&button](const auto& pair) { return button == pair.first; });
if (it != skButtonNames.end()) {
return it->second.data();
}
return nullptr;
}
const char* PADGetNativeButtonName(uint32_t button) {
return SDL_GetGamepadStringForButton(static_cast<SDL_GamepadButton>(button));
}
int32_t PADGetNativeButtonPressed(uint32_t port) {
auto* controller = aurora::input::get_controller_for_player(port);
if (controller == nullptr) {
return -1;
}
for (uint32_t i = 0; i < SDL_GAMEPAD_BUTTON_COUNT; ++i) {
if (SDL_GetGamepadButton(controller->m_controller, static_cast<SDL_GamepadButton>(i)) != 0u) {
return i;
}
}
return -1;
}
void PADRestoreDefaultMapping(uint32_t port) {
auto* controller = aurora::input::get_controller_for_player(port);
if (controller == nullptr) {
return;
}
controller->m_mapping = mDefaultButtons;
}
void PADBlockInput(bool block) { gBlockPAD = block; }

31
lib/input.hpp
View File

@ -1,13 +1,41 @@
#pragma once
#include <string>
#include "dolphin/pad.h" // For PADDeaZones and PADButtonMapping
#include "SDL3/SDL_gamepad.h"
#include "SDL3/SDL_keyboard.h"
#include "SDL3/SDL_keycode.h"
#include "SDL3/SDL_mouse.h"
#include "logging.hpp"
#include <absl/container/flat_hash_map.h>
namespace aurora::input {
extern Module Log;
struct GameController {
SDL_Gamepad* m_controller = nullptr;
bool m_isGameCube = false;
Sint32 m_index = -1;
bool m_hasRumble = false;
PADDeadZones m_deadZones{
.emulateTriggers = true,
.useDeadzones = true,
.stickDeadZone = 8000,
.substickDeadZone = 8000,
.leftTriggerActivationZone = 31150,
.rightTriggerActivationZone = 31150,
};
uint16_t m_vid = 0;
uint16_t m_pid = 0;
std::array<PADButtonMapping, 12> m_mapping{};
bool m_mappingLoaded = false;
constexpr bool operator==(const GameController& other) const {
return m_controller == other.m_controller && m_index == other.m_index;
}
};
GameController* get_controller_for_player(uint32_t player) noexcept;
Sint32 get_instance_for_player(uint32_t player) noexcept;
SDL_JoystickID add_controller(SDL_JoystickID which) noexcept;
void remove_controller(Uint32 instance) noexcept;
@ -20,4 +48,5 @@ void controller_rumble(uint32_t instance, uint16_t low_freq_intensity, uint16_t
uint16_t duration_ms) noexcept;
uint32_t controller_count() noexcept;
void initialize() noexcept;
extern absl::flat_hash_map<Uint32, GameController> g_GameControllers;
} // namespace aurora::input