From 058f98a63658dc1a2579826ba167fd61bed1e21f Mon Sep 17 00:00:00 2001 From: sanine Date: Fri, 4 Mar 2022 10:47:15 -0600 Subject: add assimp submodule --- .../assimp-master/include/assimp/ByteSwapper.h | 292 +++++++++++++++++++++ 1 file changed, 292 insertions(+) create mode 100644 src/mesh/assimp-master/include/assimp/ByteSwapper.h (limited to 'src/mesh/assimp-master/include/assimp/ByteSwapper.h') diff --git a/src/mesh/assimp-master/include/assimp/ByteSwapper.h b/src/mesh/assimp-master/include/assimp/ByteSwapper.h new file mode 100644 index 0000000..488f7a5 --- /dev/null +++ b/src/mesh/assimp-master/include/assimp/ByteSwapper.h @@ -0,0 +1,292 @@ +/* +Open Asset Import Library (assimp) +---------------------------------------------------------------------- + +Copyright (c) 2006-2022, assimp team + + +All rights reserved. + +Redistribution and use of this software in source and binary forms, +with or without modification, are permitted provided that the +following conditions are met: + +* Redistributions of source code must retain the above + copyright notice, this list of conditions and the + following disclaimer. + +* 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. + +* Neither the name of the assimp team, nor the names of its + contributors may be used to endorse or promote products + derived from this software without specific prior + written permission of the assimp team. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT +OWNER OR 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. + +---------------------------------------------------------------------- +*/ + +/** @file Helper class tp perform various byte order swappings + (e.g. little to big endian) */ +#pragma once +#ifndef AI_BYTESWAPPER_H_INC +#define AI_BYTESWAPPER_H_INC + +#ifdef __GNUC__ +# pragma GCC system_header +#endif + +#include +#include +#include + +#if _MSC_VER >= 1400 +#include +#endif + +namespace Assimp { +// -------------------------------------------------------------------------------------- +/** Defines some useful byte order swap routines. + * + * This is required to read big-endian model formats on little-endian machines, + * and vice versa. Direct use of this class is DEPRECATED. Use #StreamReader instead. */ +// -------------------------------------------------------------------------------------- +class ByteSwap { + ByteSwap() AI_NO_EXCEPT {} + +public: + + // ---------------------------------------------------------------------- + /** Swap two bytes of data + * @param[inout] _szOut A void* to save the reintcasts for the caller. */ + static inline void Swap2(void* _szOut) + { + ai_assert(_szOut); + +#if _MSC_VER >= 1400 + uint16_t* const szOut = reinterpret_cast(_szOut); + *szOut = _byteswap_ushort(*szOut); +#else + uint8_t* const szOut = reinterpret_cast(_szOut); + std::swap(szOut[0],szOut[1]); +#endif + } + + // ---------------------------------------------------------------------- + /** Swap four bytes of data + * @param[inout] _szOut A void* to save the reintcasts for the caller. */ + static inline void Swap4(void* _szOut) + { + ai_assert(_szOut); + +#if _MSC_VER >= 1400 + uint32_t* const szOut = reinterpret_cast(_szOut); + *szOut = _byteswap_ulong(*szOut); +#else + uint8_t* const szOut = reinterpret_cast(_szOut); + std::swap(szOut[0],szOut[3]); + std::swap(szOut[1],szOut[2]); +#endif + } + + // ---------------------------------------------------------------------- + /** Swap eight bytes of data + * @param[inout] _szOut A void* to save the reintcasts for the caller. */ + static inline void Swap8(void* _szOut) + { + ai_assert(_szOut); + +#if _MSC_VER >= 1400 + uint64_t* const szOut = reinterpret_cast(_szOut); + *szOut = _byteswap_uint64(*szOut); +#else + uint8_t* const szOut = reinterpret_cast(_szOut); + std::swap(szOut[0],szOut[7]); + std::swap(szOut[1],szOut[6]); + std::swap(szOut[2],szOut[5]); + std::swap(szOut[3],szOut[4]); +#endif + } + + // ---------------------------------------------------------------------- + /** ByteSwap a float. Not a joke. + * @param[inout] fOut ehm. .. */ + static inline void Swap(float* fOut) { + Swap4(fOut); + } + + // ---------------------------------------------------------------------- + /** ByteSwap a double. Not a joke. + * @param[inout] fOut ehm. .. */ + static inline void Swap(double* fOut) { + Swap8(fOut); + } + + + // ---------------------------------------------------------------------- + /** ByteSwap an int16t. Not a joke. + * @param[inout] fOut ehm. .. */ + static inline void Swap(int16_t* fOut) { + Swap2(fOut); + } + + static inline void Swap(uint16_t* fOut) { + Swap2(fOut); + } + + // ---------------------------------------------------------------------- + /** ByteSwap an int32t. Not a joke. + * @param[inout] fOut ehm. .. */ + static inline void Swap(int32_t* fOut){ + Swap4(fOut); + } + + static inline void Swap(uint32_t* fOut){ + Swap4(fOut); + } + + // ---------------------------------------------------------------------- + /** ByteSwap an int64t. Not a joke. + * @param[inout] fOut ehm. .. */ + static inline void Swap(int64_t* fOut) { + Swap8(fOut); + } + + static inline void Swap(uint64_t* fOut) { + Swap8(fOut); + } + + // ---------------------------------------------------------------------- + //! Templatized ByteSwap + //! \returns param tOut as swapped + template + static inline Type Swapped(Type tOut) + { + return _swapper()(tOut); + } + +private: + + template struct _swapper; +}; + +template struct ByteSwap::_swapper { + T operator() (T tOut) { + Swap2(&tOut); + return tOut; + } +}; + +template struct ByteSwap::_swapper { + T operator() (T tOut) { + Swap4(&tOut); + return tOut; + } +}; + +template struct ByteSwap::_swapper { + T operator() (T tOut) { + Swap8(&tOut); + return tOut; + } +}; + + +// -------------------------------------------------------------------------------------- +// ByteSwap macros for BigEndian/LittleEndian support +// -------------------------------------------------------------------------------------- +#if (defined AI_BUILD_BIG_ENDIAN) +# define AI_LE(t) (t) +# define AI_BE(t) Assimp::ByteSwap::Swapped(t) +# define AI_LSWAP2(p) +# define AI_LSWAP4(p) +# define AI_LSWAP8(p) +# define AI_LSWAP2P(p) +# define AI_LSWAP4P(p) +# define AI_LSWAP8P(p) +# define LE_NCONST const +# define AI_SWAP2(p) Assimp::ByteSwap::Swap2(&(p)) +# define AI_SWAP4(p) Assimp::ByteSwap::Swap4(&(p)) +# define AI_SWAP8(p) Assimp::ByteSwap::Swap8(&(p)) +# define AI_SWAP2P(p) Assimp::ByteSwap::Swap2((p)) +# define AI_SWAP4P(p) Assimp::ByteSwap::Swap4((p)) +# define AI_SWAP8P(p) Assimp::ByteSwap::Swap8((p)) +# define BE_NCONST +#else +# define AI_BE(t) (t) +# define AI_LE(t) Assimp::ByteSwap::Swapped(t) +# define AI_SWAP2(p) +# define AI_SWAP4(p) +# define AI_SWAP8(p) +# define AI_SWAP2P(p) +# define AI_SWAP4P(p) +# define AI_SWAP8P(p) +# define BE_NCONST const +# define AI_LSWAP2(p) Assimp::ByteSwap::Swap2(&(p)) +# define AI_LSWAP4(p) Assimp::ByteSwap::Swap4(&(p)) +# define AI_LSWAP8(p) Assimp::ByteSwap::Swap8(&(p)) +# define AI_LSWAP2P(p) Assimp::ByteSwap::Swap2((p)) +# define AI_LSWAP4P(p) Assimp::ByteSwap::Swap4((p)) +# define AI_LSWAP8P(p) Assimp::ByteSwap::Swap8((p)) +# define LE_NCONST +#endif + + +namespace Intern { + +// -------------------------------------------------------------------------------------------- +template +struct ByteSwapper { + void operator() (T* inout) { + ByteSwap::Swap(inout); + } +}; + +template +struct ByteSwapper { + void operator() (T*) { + } +}; + +// -------------------------------------------------------------------------------------------- +template +struct Getter { + void operator() (T* inout, bool le) { +#ifdef AI_BUILD_BIG_ENDIAN + le = le; +#else + le = !le; +#endif + if (le) { + ByteSwapper1?true:false)> () (inout); + } + else ByteSwapper () (inout); + } +}; + +template +struct Getter { + + void operator() (T* inout, bool /*le*/) { + // static branch + ByteSwapper1)> () (inout); + } +}; +} // end Intern +} // end Assimp + +#endif //!! AI_BYTESWAPPER_H_INC -- cgit v1.2.1