1 /* 2 * Copyright (C) 2008 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #include "config.h" 27 #if ENABLE(SVG) 28 #include "SMILTime.h" 29 30 #include <float.h> 31 32 using namespace WebCore; 33 34 const double SMILTime::unresolvedValue = DBL_MAX; 35 // Just a big value smaller than DBL_MAX. Our times are relative to 0, we don't really need the full range. 36 const double SMILTime::indefiniteValue = FLT_MAX; 37 38 SMILTime WebCore::operator+(const SMILTime& a, const SMILTime& b) 39 { 40 if (a.isUnresolved() || b.isUnresolved()) 41 return SMILTime::unresolved(); 42 if (a.isIndefinite() || b.isIndefinite()) 43 return SMILTime::indefinite(); 44 return a.value() + b.value(); 45 } 46 47 SMILTime WebCore::operator-(const SMILTime& a, const SMILTime& b) 48 { 49 if (a.isUnresolved() || b.isUnresolved()) 50 return SMILTime::unresolved(); 51 if (a.isIndefinite() || b.isIndefinite()) 52 return SMILTime::indefinite(); 53 return a.value() - b.value(); 54 } 55 56 SMILTime WebCore::operator*(const SMILTime& a, const SMILTime& b) 57 { 58 if (a.isUnresolved() || b.isUnresolved()) 59 return SMILTime::unresolved(); 60 if (!a.value() || !b.value()) 61 return SMILTime(0); 62 if (a.isIndefinite() || b.isIndefinite()) 63 return SMILTime::indefinite(); 64 return a.value() * b.value(); 65 } 66 #endif 67 68
