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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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
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