The Tor Browser: content/media/webaudio/compiledtest/TestAudioEventTimeline.cpp@97036ab72558 (annotated)

content/media/webaudio/compiledtest/TestAudioEventTimeline.cpp@97036ab72558 (annotated)

content/media/webaudio/compiledtest/TestAudioEventTimeline.cpp

Tue, 06 Jan 2015 21:39:09 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Tue, 06 Jan 2015 21:39:09 +0100
branch: TOR_BUG_9701
changeset 8: 97036ab72558
permissions: -rw-r--r--

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

 /* -*- 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;
 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 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<ErrorResultMock> Timeline;
 void TestSpecExample()
 {
   // First, run the basic tests
   Timeline timeline(10.0f);
   is(timeline.Value(), 10.0f, "Correct default value returned");
   ErrorResultMock rv;
   float curve[] = { -1.0f, 0.0f, 1.0f };
   // 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, ArrayLength(curve), 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), -1.0f, "Correct value");
   is(timeline.GetValueAtTime(0.9), 0.0f, "Correct value");
   is(timeline.GetValueAtTime(1.0), 1.0f, "Correct value");
 }
 void TestInvalidEvents()
 {
   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");
 }
 void TestEventReplacement()
 {
   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");
 }
 void TestEventRemoval()
 {
   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");
 }
 void TestBeforeFirstEventSetValue()
 {
   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");
 }
 void TestBeforeFirstEventSetTarget()
 {
   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");
 }
 void TestBeforeFirstEventLinearRamp()
 {
   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");
 }
 void TestBeforeFirstEventExponentialRamp()
 {
   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");
 }
 void TestAfterLastValueEvent()
 {
   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");
 }
 void TestAfterLastTargetValueEvent()
 {
   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");
 }
 void TestAfterLastTargetValueEventWithValueSet()
 {
   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");
 }
 void TestValue()
 {
   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");
 }
 void TestLinearRampAtZero()
 {
   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");
 }
 void TestExponentialRampAtZero()
 {
   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");
 }
 void TestLinearRampAtSameTime()
 {
   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");
 }
 void TestExponentialRampAtSameTime()
 {
   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");
 }
 void TestSetTargetZeroTimeConstant()
 {
   Timeline timeline(10.0f);
   ErrorResultMock rv;
   timeline.SetTargetAtTime(20.0f, 1.0, 0.0, rv);
   is(timeline.GetValueAtTime(10.), 20.f, "Should get the correct value with timeConstant == 0");
 }
 void TestExponentialInvalidPreviousZeroValue()
 {
   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");
 }
 int main()
 {
   ScopedXPCOM xpcom("TestAudioEventTimeline");
   if (xpcom.failed()) {
     return 1;
   }
   TestSpecExample();
   TestInvalidEvents();
   TestEventReplacement();
   TestEventRemoval();
   TestBeforeFirstEventSetValue();
   TestBeforeFirstEventSetTarget();
   TestBeforeFirstEventLinearRamp();
   TestBeforeFirstEventExponentialRamp();
   TestAfterLastValueEvent();
   TestAfterLastTargetValueEvent();
   TestAfterLastTargetValueEventWithValueSet();
   TestValue();
   TestLinearRampAtZero();
   TestExponentialRampAtZero();
   TestLinearRampAtSameTime();
   TestExponentialRampAtSameTime();
   TestSetTargetZeroTimeConstant();
   TestExponentialInvalidPreviousZeroValue();
   return gFailCount > 0;
 }

The Tor Browser / annotate

content/media/webaudio/compiledtest/TestAudioEventTimeline.cpp@97036ab72558 (annotated)

content/media/webaudio/compiledtest/TestAudioEventTimeline.cpp