gecko/content/media/webaudio/compiledtest/TestAudioEventTimeline.cpp

364 lines
11 KiB
C++

/* -*- 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 "TestHarness.h"
#include <sstream>
#include <limits>
using namespace mozilla::dom;
using std::numeric_limits;
// Some simple testing primitives
void ok(bool val, const char* msg)
{
if (val) {
passed(msg);
} else {
fail(msg);
}
}
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;
}
}
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;
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;
ok(fabsf(a - b) < kEpsilon, ss.str().c_str());
}
class FloatArrayMock
{
public:
// This implementation is not used for now, so let's just return dummy values.
float* Data() const
{
return nullptr;
}
uint32_t Length() const
{
return 0;
}
bool inited() const
{
return true;
}
};
class ErrorResultMock
{
public:
ErrorResultMock()
: mRv(NS_OK)
{
}
void Throw(nsresult aRv)
{
mRv = aRv;
}
operator nsresult() const
{
return mRv;
}
private:
nsresult mRv;
};
typedef AudioEventTimeline<FloatArrayMock, ErrorResultMock> Timeline;
void TestSpecExample()
{
// First, run the basic tests
Timeline timeline(10.0f, .1f, 20.0f);
is(timeline.DefaultValue(), 10.0f, "Correct default value returned");
is(timeline.MinValue(), .1f, "Correct min value returned");
is(timeline.MaxValue(), 20.0f, "Correct max value returned");
ErrorResultMock rv;
// This test is copied from the example in the Web Audio spec
const float t0 = 0.0f,
t1 = 0.1f,
t2 = 0.2f,
t3 = 0.3f,
t4 = 0.4f,
t5 = 0.6f,
t6 = 0.7f/*,
t7 = 1.0f*/;
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");
// TODO: Add the SetValueCurveAtTime test
is(timeline.GetValueAtTime(0.0f), 0.2f, "Correct value");
is(timeline.GetValueAtTime(0.05f), 0.2f, "Correct value");
is(timeline.GetValueAtTime(0.1f), 0.3f, "Correct value");
is(timeline.GetValueAtTime(0.15f), 0.3f, "Correct value");
is(timeline.GetValueAtTime(0.2f), 0.4f, "Correct value");
is(timeline.GetValueAtTime(0.25f), (0.4f + 1.0f) / 2, "Correct value");
is(timeline.GetValueAtTime(0.3f), 1.0f, "Correct value");
is(timeline.GetValueAtTime(0.35f), (1.0f + 0.15f) / 2, "Correct value");
is(timeline.GetValueAtTime(0.4f), 0.15f, "Correct value");
is(timeline.GetValueAtTime(0.45f), (0.15f * powf(0.75f / 0.15f, 0.05f / 0.2f)), "Correct value");
is(timeline.GetValueAtTime(0.5f), (0.15f * powf(0.75f / 0.15f, 0.5f)), "Correct value");
is(timeline.GetValueAtTime(0.55f), (0.15f * powf(0.75f / 0.15f, 0.15f / 0.2f)), "Correct value");
is(timeline.GetValueAtTime(0.6f), 0.75f, "Correct value");
is(timeline.GetValueAtTime(0.65f), (0.75f * powf(0.05 / 0.75f, 0.5f)), "Correct value");
is(timeline.GetValueAtTime(0.7f), 0.05f, "Correct value");
is(timeline.GetValueAtTime(1.0f), 0.05f, "Correct value");
}
void TestInvalidEvents()
{
MOZ_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, .1f, 20.0f);
ErrorResultMock rv;
timeline.SetValueAtTime(NaN, 0.1f, rv);
is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned");
timeline.SetValueAtTime(Infinity, 0.1f, rv);
is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned");
timeline.SetValueAtTime(-Infinity, 0.1f, rv);
is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned");
timeline.LinearRampToValueAtTime(NaN, 0.2f, rv);
is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned");
timeline.LinearRampToValueAtTime(Infinity, 0.2f, rv);
is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned");
timeline.LinearRampToValueAtTime(-Infinity, 0.2f, rv);
is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned");
timeline.ExponentialRampToValueAtTime(NaN, 0.3f, rv);
is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned");
timeline.ExponentialRampToValueAtTime(Infinity, 0.3f, rv);
is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned");
timeline.ExponentialRampToValueAtTime(-Infinity, 0.4f, rv);
is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned");
timeline.SetTargetAtTime(NaN, 0.4f, 1.0f, rv);
is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned");
timeline.SetTargetAtTime(Infinity, 0.4f, 1.0f, rv);
is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned");
timeline.SetTargetAtTime(-Infinity, 0.4f, 1.0f, rv);
is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned");
timeline.SetTargetAtTime(0.4f, NaN, 1.0f, rv);
is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned");
timeline.SetTargetAtTime(0.4f, Infinity, 1.0f, rv);
is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned");
timeline.SetTargetAtTime(0.4f, -Infinity, 1.0f, rv);
is(rv, NS_ERROR_DOM_SYNTAX_ERR, "Correct error code returned");
// TODO: Test SetValueCurveAtTime
}
void TestEventReplacement()
{
Timeline timeline(10.0f, .1f, 20.0f);
ErrorResultMock rv;
is(timeline.GetEventCount(), 0, "No events yet");
timeline.SetValueAtTime(10.0f, 0.1f, rv);
is(timeline.GetEventCount(), 1, "One event scheduled now");
timeline.SetValueAtTime(20.0f, 0.1f, rv);
is(rv, NS_OK, "Event scheduling should be successful");
is(timeline.GetEventCount(), 1, "Event should be replaced");
is(timeline.GetValueAtTime(0.1f), 20.0f, "The first event should be overwritten");
timeline.LinearRampToValueAtTime(30.0f, 0.1f, rv);
is(rv, NS_OK, "Event scheduling should be successful");
is(timeline.GetEventCount(), 2, "Different event type should be appended");
is(timeline.GetValueAtTime(0.1f), 30.0f, "The first event should be overwritten");
}
void TestEventRemoval()
{
Timeline timeline(10.0f, .1f, 20.0f);
ErrorResultMock rv;
timeline.SetValueAtTime(10.0f, 0.1f, rv);
timeline.SetValueAtTime(15.0f, 0.15f, rv);
timeline.SetValueAtTime(20.0f, 0.2f, rv);
timeline.LinearRampToValueAtTime(30.0f, 0.3f, rv);
is(timeline.GetEventCount(), 4, "Should have three events initially");
timeline.CancelScheduledValues(0.4f);
is(timeline.GetEventCount(), 4, "Trying to delete past the end of the array should have no effect");
timeline.CancelScheduledValues(0.3f);
is(timeline.GetEventCount(), 3, "Should successfully delete one event");
timeline.CancelScheduledValues(0.12f);
is(timeline.GetEventCount(), 1, "Should successfully delete two events");
}
void TestBeforeFirstEvent()
{
Timeline timeline(10.0f, .1f, 20.0f);
ErrorResultMock rv;
timeline.SetValueAtTime(20.0f, 1.0f, rv);
is(timeline.GetValueAtTime(0.5f), 10.0f, "Retrun the default value before the first event");
}
void TestAfterLastValueEvent()
{
Timeline timeline(10.0f, .1f, 20.0f);
ErrorResultMock rv;
timeline.SetValueAtTime(20.0f, 1.0f, rv);
is(timeline.GetValueAtTime(1.5f), 20.0f, "Return the last value after the last SetValue event");
}
void TestAfterLastTargetValueEvent()
{
Timeline timeline(10.0f, .1f, 20.0f);
ErrorResultMock rv;
timeline.SetTargetAtTime(20.0f, 1.0f, 5.0f, rv);
is(timeline.GetValueAtTime(10.f), (20.f + (10.f - 20.f) * expf(-9.0f / 5.0f)), "Return the value after the last SetTarget event based on the curve");
}
void TestAfterLastTargetValueEventWithValueSet()
{
Timeline timeline(10.0f, .1f, 20.0f);
ErrorResultMock rv;
timeline.SetValue(50.f);
timeline.SetTargetAtTime(20.0f, 1.0f, 5.0f, rv);
is(timeline.GetValueAtTime(10.f), (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");
}
void TestValue()
{
Timeline timeline(10.0f, .1f, 20.0f);
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, 1.0f, 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");
}
void TestLinearRampAtZero()
{
Timeline timeline(10.0f, .1f, 20.0f);
ErrorResultMock rv;
timeline.LinearRampToValueAtTime(20.0f, 0.0f, rv);
is(timeline.GetValueAtTime(0.0f), 20.0f, "Should get the correct value when t0 == t1 == 0");
}
void TestExponentialRampAtZero()
{
Timeline timeline(10.0f, .1f, 20.0f);
ErrorResultMock rv;
timeline.ExponentialRampToValueAtTime(20.0f, 0.0f, rv);
is(timeline.GetValueAtTime(0.0f), 20.0f, "Should get the correct value when t0 == t1 == 0");
}
void TestLinearRampAtSameTime()
{
Timeline timeline(10.0f, .1f, 20.0f);
ErrorResultMock rv;
timeline.SetValueAtTime(5.0f, 1.0f, rv);
timeline.LinearRampToValueAtTime(20.0f, 1.0f, rv);
is(timeline.GetValueAtTime(1.0f), 20.0f, "Should get the correct value when t0 == t1");
}
void TestExponentialRampAtSameTime()
{
Timeline timeline(10.0f, .1f, 20.0f);
ErrorResultMock rv;
timeline.SetValueAtTime(5.0f, 1.0f, rv);
timeline.ExponentialRampToValueAtTime(20.0f, 1.0f, rv);
is(timeline.GetValueAtTime(1.0f), 20.0f, "Should get the correct value when t0 == t1");
}
void TestSetTargetZeroTimeConstant()
{
Timeline timeline(10.0f, .1f, 20.0f);
ErrorResultMock rv;
timeline.SetTargetAtTime(20.0f, 1.0f, 0.0f, rv);
is(timeline.GetValueAtTime(10.f), 20.f, "Should get the correct value with timeConstant == 0");
}
int main()
{
ScopedXPCOM xpcom("TestAudioEventTimeline");
if (xpcom.failed()) {
return 1;
}
TestSpecExample();
TestInvalidEvents();
TestEventReplacement();
TestEventRemoval();
TestBeforeFirstEvent();
TestAfterLastValueEvent();
TestAfterLastTargetValueEvent();
TestAfterLastTargetValueEventWithValueSet();
TestValue();
TestLinearRampAtZero();
TestExponentialRampAtZero();
TestLinearRampAtSameTime();
TestExponentialRampAtSameTime();
TestSetTargetZeroTimeConstant();
return gFailCount > 0;
}