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Diffstat (limited to 'dom/media/webaudio/gtest/TestAudioEventTimeline.cpp')
| -rw-r--r-- | dom/media/webaudio/gtest/TestAudioEventTimeline.cpp | 450 |
1 files changed, 450 insertions, 0 deletions
diff --git a/dom/media/webaudio/gtest/TestAudioEventTimeline.cpp b/dom/media/webaudio/gtest/TestAudioEventTimeline.cpp new file mode 100644 index 0000000000..cc731d3e2b --- /dev/null +++ b/dom/media/webaudio/gtest/TestAudioEventTimeline.cpp @@ -0,0 +1,450 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim:set ts=2 sw=2 sts=2 et cindent: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "AudioEventTimeline.h" +#include <sstream> +#include <limits> +#include "gtest/gtest.h" + +// Mock the MediaStream class +namespace mozilla { +class MediaStream +{ + NS_INLINE_DECL_THREADSAFE_REFCOUNTING(MediaStream) +private: + ~MediaStream() { + }; +}; +} + +using namespace mozilla; +using namespace mozilla::dom; +using std::numeric_limits; + +// Some simple testing primitives +void ok(bool val, const char* msg) +{ + if (!val) { + fprintf(stderr, "failure: %s", msg); + } + ASSERT_TRUE(val); +} + +namespace std { + +template <class T> +basic_ostream<T, char_traits<T> >& +operator<<(basic_ostream<T, char_traits<T> >& os, nsresult rv) +{ + os << static_cast<uint32_t>(rv); + return os; +} + +} // namespace std + +template <class T, class U> +void is(const T& a, const U& b, const char* msg) +{ + std::stringstream ss; + ss << msg << ", Got: " << a << ", expected: " << b << std::endl; + ok(a == b, ss.str().c_str()); +} + +template <> +void is(const float& a, const float& b, const char* msg) +{ + // stupidly high, since we mostly care about the correctness of the algorithm + const float kEpsilon = 0.00001f; + + std::stringstream ss; + ss << msg << ", Got: " << a << ", expected: " << b << std::endl; + ok(fabsf(a - b) < kEpsilon, ss.str().c_str()); +} + +class ErrorResultMock +{ +public: + ErrorResultMock() + : mRv(NS_OK) + { + } + void Throw(nsresult aRv) + { + mRv = aRv; + } + + operator nsresult() const + { + return mRv; + } + + ErrorResultMock& operator=(nsresult aRv) + { + mRv = aRv; + return *this; + } + +private: + nsresult mRv; +}; + +typedef AudioEventTimeline Timeline; + +TEST(AudioEventTimeline, SpecExample) +{ + // First, run the basic tests + Timeline timeline(10.0f); + is(timeline.Value(), 10.0f, "Correct default value returned"); + + ErrorResultMock rv; + + uint32_t curveLength = 44100; + float* curve = new float[curveLength]; + for (uint32_t i = 0; i < curveLength; ++i) { + curve[i] = sin(M_PI * i / float(curveLength)); + } + + // This test is copied from the example in the Web Audio spec + const double t0 = 0.0, + t1 = 0.1, + t2 = 0.2, + t3 = 0.3, + t4 = 0.4, + t5 = 0.6, + t6 = 0.7, + t7 = 1.0; + timeline.SetValueAtTime(0.2f, t0, rv); + is(rv, NS_OK, "SetValueAtTime succeeded"); + timeline.SetValueAtTime(0.3f, t1, rv); + is(rv, NS_OK, "SetValueAtTime succeeded"); + timeline.SetValueAtTime(0.4f, t2, rv); + is(rv, NS_OK, "SetValueAtTime succeeded"); + timeline.LinearRampToValueAtTime(1.0f, t3, rv); + is(rv, NS_OK, "LinearRampToValueAtTime succeeded"); + timeline.LinearRampToValueAtTime(0.15f, t4, rv); + is(rv, NS_OK, "LinearRampToValueAtTime succeeded"); + timeline.ExponentialRampToValueAtTime(0.75f, t5, rv); + is(rv, NS_OK, "ExponentialRampToValueAtTime succeeded"); + timeline.ExponentialRampToValueAtTime(0.05f, t6, rv); + is(rv, NS_OK, "ExponentialRampToValueAtTime succeeded"); + timeline.SetValueCurveAtTime(curve, curveLength, t6, t7 - t6, rv); + is(rv, NS_OK, "SetValueCurveAtTime succeeded"); + + is(timeline.GetValueAtTime(0.0), 0.2f, "Correct value"); + is(timeline.GetValueAtTime(0.05), 0.2f, "Correct value"); + is(timeline.GetValueAtTime(0.1), 0.3f, "Correct value"); + is(timeline.GetValueAtTime(0.15), 0.3f, "Correct value"); + is(timeline.GetValueAtTime(0.2), 0.4f, "Correct value"); + is(timeline.GetValueAtTime(0.25), (0.4f + 1.0f) / 2, "Correct value"); + is(timeline.GetValueAtTime(0.3), 1.0f, "Correct value"); + is(timeline.GetValueAtTime(0.35), (1.0f + 0.15f) / 2, "Correct value"); + is(timeline.GetValueAtTime(0.4), 0.15f, "Correct value"); + is(timeline.GetValueAtTime(0.45), (0.15f * powf(0.75f / 0.15f, 0.05f / 0.2f)), "Correct value"); + is(timeline.GetValueAtTime(0.5), (0.15f * powf(0.75f / 0.15f, 0.5f)), "Correct value"); + is(timeline.GetValueAtTime(0.55), (0.15f * powf(0.75f / 0.15f, 0.15f / 0.2f)), "Correct value"); + is(timeline.GetValueAtTime(0.6), 0.75f, "Correct value"); + is(timeline.GetValueAtTime(0.65), (0.75f * powf(0.05f / 0.75f, 0.5f)), "Correct value"); + is(timeline.GetValueAtTime(0.7), 0.0f, "Correct value"); + is(timeline.GetValueAtTime(0.85), 1.0f, "Correct value"); + is(timeline.GetValueAtTime(1.0), curve[curveLength - 1], "Correct value"); + + delete[] curve; +} + +TEST(AudioEventTimeline, InvalidEvents) +{ + static_assert(numeric_limits<float>::has_quiet_NaN, "Platform must have a quiet NaN"); + const float NaN = numeric_limits<float>::quiet_NaN(); + const float Infinity = numeric_limits<float>::infinity(); + Timeline timeline(10.0f); + + float curve[] = { -1.0f, 0.0f, 1.0f }; + float badCurve1[] = { -1.0f, NaN, 1.0f }; + float badCurve2[] = { -1.0f, Infinity, 1.0f }; + float badCurve3[] = { -1.0f, -Infinity, 1.0f }; + + ErrorResultMock rv; + + timeline.SetValueAtTime(NaN, 0.1, rv); + is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned"); + timeline.SetValueAtTime(Infinity, 0.1, rv); + is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned"); + timeline.SetValueAtTime(-Infinity, 0.1, rv); + is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned"); + timeline.LinearRampToValueAtTime(NaN, 0.2, rv); + is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned"); + timeline.LinearRampToValueAtTime(Infinity, 0.2, rv); + is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned"); + timeline.LinearRampToValueAtTime(-Infinity, 0.2, rv); + is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned"); + timeline.ExponentialRampToValueAtTime(NaN, 0.3, rv); + is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned"); + timeline.ExponentialRampToValueAtTime(Infinity, 0.3, rv); + is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned"); + timeline.ExponentialRampToValueAtTime(-Infinity, 0.4, rv); + is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned"); + timeline.ExponentialRampToValueAtTime(0, 0.5, rv); + is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned"); + timeline.SetTargetAtTime(NaN, 0.4, 1.0, rv); + is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned"); + timeline.SetTargetAtTime(Infinity, 0.4, 1.0, rv); + is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned"); + timeline.SetTargetAtTime(-Infinity, 0.4, 1.0, rv); + is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned"); + timeline.SetTargetAtTime(0.4f, NaN, 1.0, rv); + is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned"); + timeline.SetTargetAtTime(0.4f, Infinity, 1.0, rv); + is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned"); + timeline.SetTargetAtTime(0.4f, -Infinity, 1.0, rv); + is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned"); + timeline.SetValueCurveAtTime(nullptr, 0, 1.0, 1.0, rv); + is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned"); + timeline.SetValueCurveAtTime(badCurve1, ArrayLength(badCurve1), 1.0, 1.0, rv); + is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned"); + timeline.SetValueCurveAtTime(badCurve2, ArrayLength(badCurve2), 1.0, 1.0, rv); + is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned"); + timeline.SetValueCurveAtTime(badCurve3, ArrayLength(badCurve3), 1.0, 1.0, rv); + is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned"); + timeline.SetValueCurveAtTime(curve, ArrayLength(curve), NaN, 1.0, rv); + is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned"); + timeline.SetValueCurveAtTime(curve, ArrayLength(curve), Infinity, 1.0, rv); + is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned"); + timeline.SetValueCurveAtTime(curve, ArrayLength(curve), -Infinity, 1.0, rv); + is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned"); + timeline.SetValueCurveAtTime(curve, ArrayLength(curve), 1.0, NaN, rv); + is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned"); + timeline.SetValueCurveAtTime(curve, ArrayLength(curve), 1.0, Infinity, rv); + is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned"); + timeline.SetValueCurveAtTime(curve, ArrayLength(curve), 1.0, -Infinity, rv); + is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned"); +} + +TEST(AudioEventTimeline, EventReplacement) +{ + Timeline timeline(10.0f); + + ErrorResultMock rv; + + is(timeline.GetEventCount(), 0u, "No events yet"); + timeline.SetValueAtTime(10.0f, 0.1, rv); + is(timeline.GetEventCount(), 1u, "One event scheduled now"); + timeline.SetValueAtTime(20.0f, 0.1, rv); + is(rv, NS_OK, "Event scheduling should be successful"); + is(timeline.GetEventCount(), 1u, "Event should be replaced"); + is(timeline.GetValueAtTime(0.1), 20.0f, "The first event should be overwritten"); + timeline.LinearRampToValueAtTime(30.0f, 0.1, rv); + is(rv, NS_OK, "Event scheduling should be successful"); + is(timeline.GetEventCount(), 2u, "Different event type should be appended"); + is(timeline.GetValueAtTime(0.1), 30.0f, "The first event should be overwritten"); +} + +TEST(AudioEventTimeline, EventRemoval) +{ + Timeline timeline(10.0f); + + ErrorResultMock rv; + + timeline.SetValueAtTime(10.0f, 0.1, rv); + timeline.SetValueAtTime(15.0f, 0.15, rv); + timeline.SetValueAtTime(20.0f, 0.2, rv); + timeline.LinearRampToValueAtTime(30.0f, 0.3, rv); + is(timeline.GetEventCount(), 4u, "Should have three events initially"); + timeline.CancelScheduledValues(0.4); + is(timeline.GetEventCount(), 4u, "Trying to delete past the end of the array should have no effect"); + timeline.CancelScheduledValues(0.3); + is(timeline.GetEventCount(), 3u, "Should successfully delete one event"); + timeline.CancelScheduledValues(0.12); + is(timeline.GetEventCount(), 1u, "Should successfully delete two events"); + timeline.CancelAllEvents(); + ok(timeline.HasSimpleValue(), "No event should remain scheduled"); +} + +TEST(AudioEventTimeline, BeforeFirstEventSetValue) +{ + Timeline timeline(10.0f); + + ErrorResultMock rv; + + timeline.SetValueAtTime(20.0f, 1.0, rv); + is(timeline.GetValueAtTime(0.5), 10.0f, "Retrun the default value before the first event"); +} + +TEST(AudioEventTimeline, BeforeFirstEventSetTarget) +{ + Timeline timeline(10.0f); + + ErrorResultMock rv; + + timeline.SetTargetAtTime(20.0f, 1.0, 5.0, rv); + is(timeline.GetValueAtTime(0.5), 10.0f, "Retrun the default value before the first event"); +} + +TEST(AudioEventTimeline, BeforeFirstEventLinearRamp) +{ + Timeline timeline(10.0f); + + ErrorResultMock rv; + + timeline.LinearRampToValueAtTime(20.0f, 1.0, rv); + is(timeline.GetValueAtTime(0.5), 10.0f, "Retrun the default value before the first event"); +} + +TEST(AudioEventTimeline, BeforeFirstEventExponentialRamp) +{ + Timeline timeline(10.0f); + + ErrorResultMock rv; + + timeline.ExponentialRampToValueAtTime(20.0f, 1.0, rv); + is(timeline.GetValueAtTime(0.5), 10.0f, "Retrun the default value before the first event"); +} + +TEST(AudioEventTimeline, AfterLastValueEvent) +{ + Timeline timeline(10.0f); + + ErrorResultMock rv; + + timeline.SetValueAtTime(20.0f, 1.0, rv); + is(timeline.GetValueAtTime(1.5), 20.0f, "Return the last value after the last SetValue event"); +} + +TEST(AudioEventTimeline, AfterLastTargetValueEvent) +{ + Timeline timeline(10.0f); + + ErrorResultMock rv; + + timeline.SetTargetAtTime(20.0f, 1.0, 5.0, rv); + is(timeline.GetValueAtTime(10.), (20.f + (10.f - 20.f) * expf(-9.0f / 5.0f)), "Return the value after the last SetTarget event based on the curve"); +} + +TEST(AudioEventTimeline, AfterLastTargetValueEventWithValueSet) +{ + Timeline timeline(10.0f); + + ErrorResultMock rv; + + timeline.SetValue(50.f); + timeline.SetTargetAtTime(20.0f, 1.0, 5.0, rv); + + // When using SetTargetValueAtTime, Timeline become stateful: the value for + // time t may depend on the time t-1, so we can't just query the value at a + // time and get the right value. We have to call GetValueAtTime for the + // previous times. + for (double i = 0.0; i < 9.99; i+=0.01) { + timeline.GetValueAtTime(i); + } + + is(timeline.GetValueAtTime(10.), (20.f + (50.f - 20.f) * expf(-9.0f / 5.0f)), "Return the value after SetValue and the last SetTarget event based on the curve"); +} + +TEST(AudioEventTimeline, Value) +{ + Timeline timeline(10.0f); + + ErrorResultMock rv; + + is(timeline.Value(), 10.0f, "value should initially match the default value"); + timeline.SetValue(20.0f); + is(timeline.Value(), 20.0f, "Should be able to set the value"); + timeline.SetValueAtTime(20.0f, 1.0, rv); + // TODO: The following check needs to change when we compute the value based on the current time of the context + is(timeline.Value(), 20.0f, "TODO..."); + timeline.SetValue(30.0f); + is(timeline.Value(), 20.0f, "Should not be able to set the value"); +} + +TEST(AudioEventTimeline, LinearRampAtZero) +{ + Timeline timeline(10.0f); + + ErrorResultMock rv; + + timeline.LinearRampToValueAtTime(20.0f, 0.0, rv); + is(timeline.GetValueAtTime(0.0), 20.0f, "Should get the correct value when t0 == t1 == 0"); +} + +TEST(AudioEventTimeline, ExponentialRampAtZero) +{ + Timeline timeline(10.0f); + + ErrorResultMock rv; + + timeline.ExponentialRampToValueAtTime(20.0f, 0.0, rv); + is(timeline.GetValueAtTime(0.0), 20.0f, "Should get the correct value when t0 == t1 == 0"); +} + +TEST(AudioEventTimeline, LinearRampAtSameTime) +{ + Timeline timeline(10.0f); + + ErrorResultMock rv; + + timeline.SetValueAtTime(5.0f, 1.0, rv); + timeline.LinearRampToValueAtTime(20.0f, 1.0, rv); + is(timeline.GetValueAtTime(1.0), 20.0f, "Should get the correct value when t0 == t1"); +} + +TEST(AudioEventTimeline, ExponentialRampAtSameTime) +{ + Timeline timeline(10.0f); + + ErrorResultMock rv; + + timeline.SetValueAtTime(5.0f, 1.0, rv); + timeline.ExponentialRampToValueAtTime(20.0f, 1.0, rv); + is(timeline.GetValueAtTime(1.0), 20.0f, "Should get the correct value when t0 == t1"); +} + +TEST(AudioEventTimeline, SetTargetZeroTimeConstant) +{ + Timeline timeline(10.0f); + + ErrorResultMock rv; + + timeline.SetTargetAtTime(20.0f, 1.0, 0.0, rv); + is(timeline.GetValueAtTime(1.0), 20.0f, "Should get the correct value when t0 == t1"); +} + +TEST(AudioEventTimeline, ExponentialInvalidPreviousZeroValue) +{ + Timeline timeline(0.f); + + ErrorResultMock rv; + + timeline.ExponentialRampToValueAtTime(1.f, 1.0, rv); + is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned"); + timeline.SetValue(1.f); + rv = NS_OK; + timeline.ExponentialRampToValueAtTime(1.f, 1.0, rv); + is(rv, NS_OK, "Should succeed this time"); + timeline.CancelScheduledValues(0.0); + is(timeline.GetEventCount(), 0u, "Should have no events scheduled"); + rv = NS_OK; + timeline.SetValueAtTime(0.f, 0.5, rv); + is(rv, NS_OK, "Should succeed"); + timeline.ExponentialRampToValueAtTime(1.f, 1.0, rv); + is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned"); + timeline.CancelScheduledValues(0.0); + is(timeline.GetEventCount(), 0u, "Should have no events scheduled"); + rv = NS_OK; + timeline.ExponentialRampToValueAtTime(1.f, 1.0, rv); + is(rv, NS_OK, "Should succeed this time"); +} + +TEST(AudioEventTimeline, SettingValueCurveTwice) +{ + Timeline timeline(0.f); + float curve[] = { -1.0f, 0.0f, 1.0f }; + + ErrorResultMock rv; + + timeline.SetValueCurveAtTime(curve, ArrayLength(curve), 0.0f, 0.3f, rv); + timeline.SetValueCurveAtTime(curve, ArrayLength(curve), 0.0f, 0.3f, rv); + is(rv, NS_OK, "SetValueCurveAtTime succeeded"); +} + |