Move Source/WTF/wtf to Source/wtf

Source/WTF/wtf/MediaTime.h

-/*
- * Copyright (C) 2012 Apple Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1.  Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer. 
- * 2.  Redistributions in binary form must reproduce the above copyright
- *     notice, this list of conditions and the following disclaimer in the
- *     documentation and/or other materials provided with the distribution. 
- * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
- *     its contributors may be used to endorse or promote products derived
- *     from this software without specific prior written permission. 
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "FastAllocBase.h"
-
-#include <cmath>
-#include <limits>
-#include <math.h>
-#include <stdint.h>
-
-namespace WTF {
-
-class WTF_EXPORT_PRIVATE MediaTime {
-    WTF_MAKE_FAST_ALLOCATED;
-public:
-    enum {
-        Valid = 1 << 0,
-        HasBeenRounded = 1 << 1,
-        PositiveInfinite = 1 << 2,
-        NegativeInfinite = 1 << 3,
-        Indefinite = 1 << 4,
-    };
-
-    MediaTime();
-    MediaTime(int64_t value, int32_t scale = DefaultTimeScale, uint32_t flags = Valid);
-    MediaTime(const MediaTime& rhs);
-    ~MediaTime();
-
-    static MediaTime createWithFloat(float floatTime, int32_t timeScale = DefaultTimeScale);
-    static MediaTime createWithDouble(double doubleTime, int32_t timeScale = DefaultTimeScale);
-
-    float toFloat() const;
-    double toDouble() const;
-
-    MediaTime& operator=(const MediaTime& rhs);
-    MediaTime operator+(const MediaTime& rhs) const;
-    MediaTime operator-(const MediaTime& rhs) const;
-    bool operator<(const MediaTime& rhs) const;
-    bool operator>(const MediaTime& rhs) const;
-    bool operator==(const MediaTime& rhs) const;
-    bool operator>=(const MediaTime& rhs) const;
-    bool operator<=(const MediaTime& rhs) const;
-
-    typedef enum {
-        LessThan = -1,
-        EqualTo = 0,
-        GreaterThan = 1,
-    } ComparisonFlags;
-
-    ComparisonFlags compare(const MediaTime& rhs) const;
-
-    bool isValid() const { return m_timeFlags & Valid; }
-    bool isInvalid() const { return !isValid(); }
-    bool hasBeenRounded() const { return m_timeFlags & HasBeenRounded; }
-    bool isPositiveInfinite() const { return m_timeFlags & PositiveInfinite; }
-    bool isNegativeInfinite() const { return m_timeFlags & NegativeInfinite; }
-    bool isIndefinite() const { return m_timeFlags & Indefinite; }
-
-    static const MediaTime& zeroTime();
-    static const MediaTime& invalidTime();
-    static const MediaTime& positiveInfiniteTime();
-    static const MediaTime& negativeInfiniteTime();
-    static const MediaTime& indefiniteTime();
-
-    const int64_t& timeValue() const { return m_timeValue; }
-    const int32_t& timeScale() const { return m_timeScale; }
-
-    friend WTF_EXPORT_PRIVATE MediaTime abs(const MediaTime& rhs);
-private:
-    static const int32_t DefaultTimeScale = 6000;
-    static const int32_t MaximumTimeScale;
-
-    void setTimeScale(int32_t);
-
-    int64_t m_timeValue;
-    int32_t m_timeScale;
-    uint32_t m_timeFlags;
-};
-
-WTF_EXPORT_PRIVATE extern MediaTime abs(const MediaTime& rhs);
-}
-
-using WTF::MediaTime;
-using WTF::abs;