/*****************************************************************************
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*
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* Copyright (c) 2008-2010, CoreCodec, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of CoreCodec, Inc. nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY CoreCodec, Inc. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL CoreCodec, Inc. BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#ifndef __NODETOOLS_H
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#define __NODETOOLS_H
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//some helper functions
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static INLINE tchar_t* tcsdup(const tchar_t* s)
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{
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size_t n = tcslen(s)+1;
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tchar_t* p = (tchar_t*)malloc(n*sizeof(tchar_t));
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if (p) tcscpy_s(p,n,s);
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return p;
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}
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static INLINE bool_t EqInt(const int* a, const int* b) { return *a == *b; }
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static INLINE bool_t EqTick(const tick_t* a, const tick_t* b) { return *a == *b; }
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static INLINE bool_t EqBool(const bool_t* a, const bool_t* b) { return *a == *b; }
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static INLINE bool_t EqPtr(void** a, void** b) { return *a == *b; }
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static INLINE bool_t EqFrac(const cc_fraction* a, const cc_fraction* b)
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{
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if (a->Den == b->Den && a->Num == b->Num)
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return 1;
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if (!a->Den) return b->Den==0;
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if (!b->Den) return 0;
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return (int64_t)b->Den * a->Num == (int64_t)a->Den * b->Num;
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}
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// variable names: Result, Data, Size
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#define GETVALUE(Value,Type) \
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{ \
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assert(Size == sizeof(Type)); \
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*(Type*)Data = Value; \
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Result = ERR_NONE; \
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}
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#define GETVALUECOND(Value,Type,Cond) \
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{ \
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assert(Size == sizeof(Type)); \
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if (Cond) \
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{ \
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*(Type*)Data = Value; \
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Result = ERR_NONE; \
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} \
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}
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#define SETVALUE(Value,Type,Update) \
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{ \
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assert(Size == sizeof(Type)); \
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Value = *(Type*)Data; \
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Result = Update; \
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}
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#define SETVALUENULL(Value,Type,Update,Null) \
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{ \
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if (Data) \
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{ \
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assert(Size == sizeof(Type)); \
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Value = *(Type*)Data; \
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} \
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else \
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Null; \
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Result = Update; \
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}
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#define SETVALUECOND(Value,Type,Update,Cond) \
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{ \
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assert(Size == sizeof(Type)); \
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if (Cond) \
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{ \
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Value = *(Type*)Data; \
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Result = Update; \
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} \
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}
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#define SETVALUECMP(Value,Type,Update,EqFunc) \
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{ \
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assert(Size == sizeof(Type)); \
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Result = ERR_NONE; \
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if (!EqFunc(&Value,(Type*)Data)) \
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{ \
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Value = *(Type*)Data; \
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Result = Update; \
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} \
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}
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#define SETPACKETFORMAT(Value,Type,Update) \
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{ \
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assert(Size == sizeof(Type) || !Data); \
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Result = PacketFormatCopy(&Value,(Type*)Data); \
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if (Result == ERR_NONE) \
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Result = Update; \
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}
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#define SETPACKETFORMATCMP(Value,Type,Update) \
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{ \
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assert(Size == sizeof(Type) || !Data); \
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Result = ERR_NONE; \
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if (!EqPacketFormat(&Value,(Type*)Data)) \
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{ \
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Result = PacketFormatCopy(&Value,(Type*)Data);\
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if (Result == ERR_NONE) \
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Result = Update; \
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} \
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}
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static INLINE tick_t ScaleTick(int64_t v, int64_t Num, int64_t Den)
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{
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return (tick_t)Scale64(v,Num,Den);
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}
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static INLINE filepos_t ScalePos(int64_t v, int64_t Num, int64_t Den)
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{
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return (filepos_t)Scale64(v,Num,Den);
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}
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NODE_DLL int ScaleRound(int_fast32_t v,int_fast32_t Num,int_fast32_t Den);
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#endif
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