Something went wrong. Try again.
The open source OpenXR runtime
Something went wrong. Try again.
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126// Copyright 2022, Collabora, Ltd.// SPDX-License-Identifier: BSL-1.0/*! * @file * @brief Integer low pass filter tests. * @author Rylie Pavlik <rylie.pavlik@collabora.com> */
#include <math/m_lowpass_integer.hpp>#include <math/m_lowpass_integer.h>
#include "catch_amalgamated.hpp"
using xrt::auxiliary::math::IntegerLowPassIIRFilter;using xrt::auxiliary::math::Rational;static constexpr uint16_t InitialState = 300;
TEMPLATE_TEST_CASE("IntegerLowPassIIRFilter", "", int32_t, uint32_t){ IntegerLowPassIIRFilter<TestType> filter(Rational<TestType>{1, 2});
CHECK_FALSE(filter.isInitialized());
filter.addSample(InitialState); CHECK(filter.getState() == InitialState); CHECK(filter.isInitialized());
auto prev = filter.getState(); SECTION("Increase") { constexpr auto newTarget = InitialState * 2; for (int i = 0; i < 20; ++i) { filter.addSample(newTarget); REQUIRE(filter.isInitialized()); // not going to exceed this if (prev == newTarget || prev == newTarget - 1) { REQUIRE(filter.getState() == prev); } else { REQUIRE(filter.getState() > prev); prev = filter.getState(); } } }
SECTION("Decrease") { constexpr auto newTarget = InitialState / 2; for (int i = 0; i < 20; ++i) {
filter.addSample(newTarget); REQUIRE(filter.isInitialized()); if (prev == newTarget) { REQUIRE(filter.getState() == newTarget); } else { REQUIRE(filter.getState() < prev); prev = filter.getState(); } } } SECTION("Stay Same") { for (int i = 0; i < 20; ++i) {
filter.addSample(InitialState); REQUIRE(filter.isInitialized()); REQUIRE(filter.getState() == InitialState); } }}
TEST_CASE("m_lowpass_integer"){
struct m_lowpass_integer *filter = m_lowpass_integer_create(1, 2); CHECK(filter);
CHECK_FALSE(m_lowpass_integer_is_initialized(filter));
m_lowpass_integer_add_sample(filter, InitialState); REQUIRE(m_lowpass_integer_is_initialized(filter)); CHECK(m_lowpass_integer_get_state(filter) == InitialState);
auto prev = m_lowpass_integer_get_state(filter); SECTION("Increase") { constexpr auto newTarget = InitialState * 2; for (int i = 0; i < 20; ++i) { m_lowpass_integer_add_sample(filter, newTarget); REQUIRE(m_lowpass_integer_is_initialized(filter)); // not going to exceed this if (prev == newTarget || prev == newTarget - 1) { REQUIRE(m_lowpass_integer_get_state(filter) == prev); } else { REQUIRE(m_lowpass_integer_get_state(filter) > prev); prev = m_lowpass_integer_get_state(filter); } } }
SECTION("Decrease") { constexpr auto newTarget = InitialState / 2; for (int i = 0; i < 20; ++i) {
m_lowpass_integer_add_sample(filter, newTarget); REQUIRE(m_lowpass_integer_is_initialized(filter)); if (prev == newTarget) { REQUIRE(m_lowpass_integer_get_state(filter) == newTarget); } else { REQUIRE(m_lowpass_integer_get_state(filter) < prev); prev = m_lowpass_integer_get_state(filter); } } } SECTION("Stay Same") { for (int i = 0; i < 20; ++i) {
m_lowpass_integer_add_sample(filter, InitialState); REQUIRE(m_lowpass_integer_is_initialized(filter)); REQUIRE(m_lowpass_integer_get_state(filter) == InitialState); } }}