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#pragma once
#include "accel-union.hpp"
namespace rawaccel {
struct time_clamp {
milliseconds min = DEFAULT_TIME_MIN;
milliseconds max = DEFAULT_TIME_MAX;
};
struct device_config {
bool disable = false;
bool set_extra_info = false;
int dpi = 0;
int polling_rate = 0;
time_clamp clamp;
};
struct device_settings {
wchar_t name[MAX_NAME_LEN] = {};
wchar_t profile[MAX_NAME_LEN] = {};
wchar_t id[MAX_DEV_ID_LEN] = {};
device_config config;
};
enum class distance_mode : unsigned char {
separate,
max,
Lp,
euclidean,
};
struct modifier_flags {
bool apply_rotate = 0;
bool compute_ref_angle = 0;
bool apply_snap = 0;
bool clamp_speed = 0;
distance_mode dist_mode = {};
bool apply_directional_weight = 0;
bool apply_dir_mul_x = 0;
bool apply_dir_mul_y = 0;
modifier_flags(const profile& args)
{
clamp_speed = args.speed_max > 0 && args.speed_min <= args.speed_max;
apply_rotate = args.degrees_rotation != 0;
apply_snap = args.degrees_snap != 0;
apply_directional_weight = args.range_weights.x != args.range_weights.y;
compute_ref_angle = apply_snap || apply_directional_weight;
apply_dir_mul_x = args.lr_sens_ratio != 1;
apply_dir_mul_y = args.ud_sens_ratio != 1;
if (!args.whole) {
dist_mode = distance_mode::separate;
}
else if (args.lp_norm >= MAX_NORM || args.lp_norm <= 0) {
dist_mode = distance_mode::max;
}
else if (args.lp_norm != 2) {
dist_mode = distance_mode::Lp;
}
else {
dist_mode = distance_mode::euclidean;
}
}
modifier_flags() = default;
};
struct modifier_settings {
profile prof;
struct data_t {
modifier_flags flags;
vec2d rot_direction;
accel_union accel_x;
accel_union accel_y;
} data = {};
};
inline void init_data(modifier_settings& settings)
{
auto set_accel = [](accel_union& u, const accel_args& args) {
u.visit([&](auto& impl) {
impl = { args };
}, args);
};
set_accel(settings.data.accel_x, settings.prof.accel_x);
set_accel(settings.data.accel_y, settings.prof.accel_y);
settings.data.rot_direction = direction(settings.prof.degrees_rotation);
settings.data.flags = modifier_flags(settings.prof);
}
struct io_base {
device_config default_dev_cfg;
unsigned modifier_data_size = 0;
unsigned device_data_size = 0;
};
static_assert(alignof(io_base) == alignof(modifier_settings) && alignof(modifier_settings) == alignof(device_settings));
class modifier {
public:
#ifdef _KERNEL_MODE
__forceinline
#endif
void modify(vec2d& in, const modifier_settings& settings, double dpi_factor, milliseconds time) const
{
auto& args = settings.prof;
auto& data = settings.data;
auto& flags = settings.data.flags;
double reference_angle = 0;
double ips_factor = dpi_factor / time;
if (flags.apply_rotate) in = rotate(in, data.rot_direction);
if (flags.compute_ref_angle && in.y != 0) {
if (in.x == 0) {
reference_angle = M_PI / 2;
}
else {
reference_angle = atan(fabs(in.y / in.x));
if (flags.apply_snap) {
double snap = args.degrees_snap * M_PI / 180;
if (reference_angle > M_PI / 2 - snap) {
reference_angle = M_PI / 2;
in = { 0, _copysign(magnitude(in), in.y) };
}
else if (reference_angle < snap) {
reference_angle = 0;
in = { _copysign(magnitude(in), in.x), 0 };
}
}
}
}
if (flags.clamp_speed) {
double speed = magnitude(in) * ips_factor;
double ratio = clampsd(speed, args.speed_min, args.speed_max) / speed;
in.x *= ratio;
in.y *= ratio;
}
vec2d abs_weighted_vel = {
fabs(in.x * ips_factor * args.domain_weights.x),
fabs(in.y * ips_factor * args.domain_weights.y)
};
if (flags.dist_mode == distance_mode::separate) {
in.x *= (*cb_x)(data.accel_x, args.accel_x, abs_weighted_vel.x, args.range_weights.x);
in.y *= (*cb_y)(data.accel_y, args.accel_y, abs_weighted_vel.y, args.range_weights.y);
}
else {
double speed;
if (flags.dist_mode == distance_mode::max) {
speed = maxsd(abs_weighted_vel.x, abs_weighted_vel.y);
}
else if (flags.dist_mode == distance_mode::Lp) {
speed = lp_distance(abs_weighted_vel, args.lp_norm);
}
else {
speed = magnitude(abs_weighted_vel);
}
double weight = args.range_weights.x;
if (flags.apply_directional_weight) {
double diff = args.range_weights.y - args.range_weights.x;
weight += 2 / M_PI * reference_angle * diff;
}
double scale = (*cb_x)(data.accel_x, args.accel_x, speed, weight);
in.x *= scale;
in.y *= scale;
}
double dpi_adjusted_sens = args.sensitivity * dpi_factor;
in.x *= dpi_adjusted_sens;
in.y *= dpi_adjusted_sens * args.yx_sens_ratio;
if (flags.apply_dir_mul_x && in.x < 0) {
in.x *= args.lr_sens_ratio;
}
if (flags.apply_dir_mul_y && in.y < 0) {
in.y *= args.ud_sens_ratio;
}
}
modifier(modifier_settings& settings)
{
set_callback(cb_x, settings.data.accel_x, settings.prof.accel_x);
set_callback(cb_y, settings.data.accel_y, settings.prof.accel_y);
}
modifier() = default;
private:
using callback_t = double (*)(const accel_union&, const accel_args&, double, double);
void set_callback(callback_t& cb, accel_union& u, const accel_args& args)
{
u.visit([&](auto& impl) {
cb = &callback_template<remove_ref_t<decltype(impl)>>;
}, args);
}
template <typename AccelFunc>
static double callback_template(const accel_union& u,
const accel_args& args,
double x,
double range_weight)
{
auto& accel_fn = reinterpret_cast<const AccelFunc&>(u);
return 1 + (accel_fn(x, args) - 1) * range_weight;
}
callback_t cb_x = &callback_template<accel_noaccel>;
callback_t cb_y = &callback_template<accel_noaccel>;
};
} // rawaccel
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