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120 lines
2.7 KiB
C++
120 lines
2.7 KiB
C++
#ifndef SEAD_TICKSPAN_H_
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#define SEAD_TICKSPAN_H_
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#include <climits>
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#include <basis/seadRawPrint.h>
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#include <basis/seadTypes.h>
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namespace sead
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{
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/// A TickSpan represents a number of ticks.
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class TickSpan
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{
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public:
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TickSpan(s64 span = 0) : mSpan(span) {}
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s64 toS64() const { return mSpan; }
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s64 toTicks() const { return mSpan; }
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s64 toNanoSeconds() const;
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s64 toMicroSeconds() const { return toNanoSeconds() / 1000; }
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s64 toMilliSeconds() const
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{
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if (u64(mSpan) + (LLONG_MAX / 1000) < u64(ULLONG_MAX / 1000) - 1)
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return 1000 * mSpan / cFrequency;
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return 1000 * (mSpan / cFrequency);
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}
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s64 toSeconds() const { return toMilliSeconds() / 1000; }
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void setNanoSeconds(s64 nsec);
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void setMicroSeconds(s64 usec)
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{
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SEAD_ASSERT(LLONG_MIN / cFrequency <= usec && usec < LLONG_MAX / cFrequency);
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mSpan = usec * cFrequency / 1000 / 1000;
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}
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void setMilliSeconds(s64 msec)
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{
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SEAD_ASSERT(LLONG_MIN / cFrequency <= msec && msec < LLONG_MAX / cFrequency);
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mSpan = msec * cFrequency / 1000;
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}
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void setSeconds(s64 sec)
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{
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SEAD_ASSERT(LLONG_MIN / cFrequency <= sec && sec < LLONG_MAX / cFrequency);
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mSpan = sec * cFrequency;
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}
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const TickSpan& operator+=(TickSpan span)
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{
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mSpan += span.mSpan;
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return *this;
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}
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const TickSpan& operator-=(TickSpan span)
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{
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mSpan -= span.mSpan;
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return *this;
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}
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const TickSpan& operator*=(f32 x)
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{
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mSpan *= x;
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return *this;
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}
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const TickSpan& operator/=(f32 x)
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{
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mSpan /= x;
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return *this;
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}
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friend TickSpan operator+(TickSpan a, TickSpan b) { return a.mSpan + b.mSpan; }
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friend TickSpan operator-(TickSpan a, TickSpan b) { return a.mSpan - b.mSpan; }
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friend TickSpan operator*(TickSpan a, f32 x) { return a.mSpan * x; }
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friend TickSpan operator*(f32 x, TickSpan a) { return a.mSpan * x; }
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friend TickSpan operator/(TickSpan a, f32 x) { return a.mSpan / x; }
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static TickSpan makeFromNanoSeconds(s64 nsec)
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{
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TickSpan span;
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span.setNanoSeconds(nsec);
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return span;
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}
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static TickSpan makeFromMicroSeconds(s64 usec)
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{
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TickSpan span;
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span.setMicroSeconds(usec);
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return span;
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}
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static TickSpan makeFromMilliSeconds(s64 msec)
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{
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TickSpan span;
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span.setMilliSeconds(msec);
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return span;
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}
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static TickSpan makeFromSeconds(s64 sec)
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{
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TickSpan span;
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span.setSeconds(sec);
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return span;
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}
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private:
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s64 mSpan;
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/// Number of ticks per second. This is platform specific.
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static const s64 cFrequency;
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};
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} // namespace sead
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#endif // SEAD_TICKSPAN_H_
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