#include #include "ardour/dsp_load_calculator.h" #include "dsp_load_calculator_test.h" CPPUNIT_TEST_SUITE_REGISTRATION (DSPLoadCalculatorTest); using namespace std; using namespace ARDOUR; void DSPLoadCalculatorTest::basicTest () { DSPLoadCalculator dsp_calc; dsp_calc.set_max_time(48000, 512); int64_t dsp_100_pc_48k_us = 10666; CPPUNIT_ASSERT(dsp_calc.get_max_time_us() == dsp_100_pc_48k_us); // test equivalent of 10% load dsp_calc.set_start_timestamp_us(0); dsp_calc.set_stop_timestamp_us(dsp_100_pc_48k_us/10); CPPUNIT_ASSERT(dsp_calc.get_dsp_load() <= 0.1f); // test equivalent of 50% load and check that the load jumps to 50 percent dsp_calc.set_start_timestamp_us(0); dsp_calc.set_stop_timestamp_us(dsp_100_pc_48k_us/2); CPPUNIT_ASSERT(dsp_calc.get_dsp_load() <= 0.5f); // test equivalent of 100% load dsp_calc.set_start_timestamp_us(0); dsp_calc.set_stop_timestamp_us(dsp_100_pc_48k_us); CPPUNIT_ASSERT(dsp_calc.elapsed_time_us() == dsp_100_pc_48k_us); CPPUNIT_ASSERT(dsp_calc.get_dsp_load() <= 1.0f); // test setting the equivalent of 100% twice doesn't lead to a dsp value > 1.0 dsp_calc.set_start_timestamp_us(dsp_100_pc_48k_us); dsp_calc.set_stop_timestamp_us(dsp_100_pc_48k_us * 2); CPPUNIT_ASSERT(dsp_calc.elapsed_time_us() == dsp_100_pc_48k_us); CPPUNIT_ASSERT(dsp_calc.get_dsp_load() <= 1.0f); // test setting the equivalent of 200% clamps the value to 1.0 dsp_calc.set_start_timestamp_us(dsp_100_pc_48k_us); dsp_calc.set_stop_timestamp_us(dsp_100_pc_48k_us * 3); CPPUNIT_ASSERT(dsp_calc.get_dsp_load() == 1.0f); // test setting the an stop timestamp before the start timestamp is ignored // and the previous dsp value is returned dsp_calc.set_start_timestamp_us(dsp_100_pc_48k_us * 2); dsp_calc.set_stop_timestamp_us(dsp_100_pc_48k_us); CPPUNIT_ASSERT(dsp_calc.get_dsp_load() == 1.0f); float dsp_load = dsp_calc.get_dsp_load(); // test setting the equivalent of beyond the max_timer_error_us is ignored and // the previous dsp value is returned dsp_calc.set_start_timestamp_us (0); dsp_calc.set_stop_timestamp_us (dsp_100_pc_48k_us*10); CPPUNIT_ASSERT(dsp_calc.elapsed_time_us() > dsp_calc.max_timer_error_us()); CPPUNIT_ASSERT(dsp_calc.get_dsp_load() == dsp_load); std::cout << std::endl; // test the rate of rolloff of the LPF from 100% with load at constant 50% // over the equivalent of 1 second for (int i = 0; i < 1e6 / dsp_100_pc_48k_us; ++i) { dsp_calc.set_start_timestamp_us(0); dsp_calc.set_stop_timestamp_us(dsp_100_pc_48k_us / 2); CPPUNIT_ASSERT(dsp_calc.elapsed_time_us() == 5333); std::cout << "DSP 50% load value = " << dsp_calc.get_dsp_load() << std::endl; } // test that the LPF is still working after one second of values // TODO need to work out what is required in terms of responsiveness etc CPPUNIT_ASSERT(dsp_calc.get_dsp_load() > 0.5f); // compare 96k to 48k DSPLoadCalculator dsp_calc_96k; dsp_calc_96k.set_max_time(96000, 512); int64_t dsp_100_pc_96k_us = 5333; // reset both to 100% dsp_calc.set_start_timestamp_us(dsp_100_pc_48k_us); dsp_calc.set_stop_timestamp_us(dsp_100_pc_48k_us * 2); CPPUNIT_ASSERT(dsp_calc.elapsed_time_us() == dsp_100_pc_48k_us); CPPUNIT_ASSERT(dsp_calc.get_dsp_load() <= 1.0f); dsp_calc_96k.set_start_timestamp_us(dsp_100_pc_96k_us); dsp_calc_96k.set_stop_timestamp_us(dsp_100_pc_96k_us * 2); CPPUNIT_ASSERT(dsp_calc_96k.elapsed_time_us() == dsp_100_pc_96k_us); CPPUNIT_ASSERT(dsp_calc_96k.get_dsp_load() <= 1.0f); // test the rate of rolloff of the LPF from 100% with load at constant 50% // over the equivalent of 1 second for 48k and 96k and test for ~equality for (int i = 0; i < 1e6 / dsp_100_pc_96k_us; ++i) { dsp_calc_96k.set_start_timestamp_us(0); dsp_calc_96k.set_stop_timestamp_us(dsp_100_pc_96k_us / 2); if (i % 2 == 0) { dsp_calc.set_start_timestamp_us(0); dsp_calc.set_stop_timestamp_us(dsp_100_pc_48k_us / 2); std::cout << "DSP 50% load value 48k = " << dsp_calc.get_dsp_load() << std::endl; std::cout << "DSP 50% load value 96k = " << dsp_calc_96k.get_dsp_load() << std::endl; CPPUNIT_ASSERT_DOUBLES_EQUAL(dsp_calc.get_dsp_load(), dsp_calc_96k.get_dsp_load(), 0.001); } } }