/* 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 "SMILTimeValue.h"
#include "nsMathUtils.h"
namespace mozilla {
const SMILTime SMILTimeValue::kUnresolvedMillis =
std::numeric_limits<SMILTime>::max();
//----------------------------------------------------------------------
// SMILTimeValue methods:
static inline int8_t Cmp(int64_t aA, int64_t aB) {
return aA == aB ?
0 : (aA > aB ?
1 : -
1);
}
int8_t SMILTimeValue::CompareTo(
const SMILTimeValue& aOther)
const {
int8_t result;
if (mState == State::Definite) {
result = (aOther.mState == State::Definite)
? Cmp(mMilliseconds, aOther.mMilliseconds)
: -
1;
}
else if (mState == State::Indefinite) {
if (aOther.mState == State::Definite)
result =
1;
else if (aOther.mState == State::Indefinite)
result =
0;
else
result = -
1;
}
else {
result = (aOther.mState != State::Unresolved) ?
1 :
0;
}
return result;
}
void SMILTimeValue::SetMillis(
double aMillis, Rounding aRounding) {
mState = State::Definite;
mMilliseconds = NS_round(aMillis);
if (aRounding == Rounding::EnsureNonZero && !mMilliseconds && aMillis) {
// Ensure we don't round small values to zero.
mMilliseconds = std::copysign(
1.
0, aMillis);
}
}
}
// namespace mozilla