/* * By downloading, copying, installing or using the software you agree to this license. * If you do not agree to this license, do not download, install, * copy or use the software. * * * License Agreement * For Open Source Computer Vision Library * (3-clause BSD License) * * Copyright (C) 2014, NVIDIA Corporation, all rights reserved. * Third party copyrights are property of their respective owners. * * Redistribution and use 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 names of the copyright holders nor the names of the contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * 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 copyright holders 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. */ #include <cstdlib> #include <iostream> #include "common.hpp" namespace CAROTENE_NS { bool isSupportedConfiguration() { #ifdef CAROTENE_NEON return true; #else return false; #endif } namespace internal { void assertSupportedConfiguration(bool parametersSupported) { if (!isSupportedConfiguration()) { std::cerr << "internal error: attempted to use an unavailable function" << std::endl; std::abort(); } if (!parametersSupported) { std::cerr << "internal error: attempted to use a function with unsupported parameters" << std::endl; std::abort(); } } ptrdiff_t borderInterpolate(ptrdiff_t _p, size_t _len, BORDER_MODE borderType, size_t startMargin, size_t endMargin) { ptrdiff_t p = _p + (ptrdiff_t)startMargin; size_t len = _len + startMargin + endMargin; if( (size_t)p < len ) return _p; else if( borderType == BORDER_MODE_REPLICATE ) p = p < 0 ? 0 : (ptrdiff_t)len - 1; else if( borderType == BORDER_MODE_REFLECT || borderType == BORDER_MODE_REFLECT101 ) { s32 delta = borderType == BORDER_MODE_REFLECT101; if( len == 1 ) return 0; do { if( p < 0 ) p = -p - 1 + delta; else p = (ptrdiff_t)len - 1 - (p - (ptrdiff_t)len) - delta; } while( (size_t)p >= len ); } else if( borderType == BORDER_MODE_WRAP ) { if( p < 0 ) p -= ((p-(ptrdiff_t)len+1)/(ptrdiff_t)len)*(ptrdiff_t)len; if( p >= (ptrdiff_t)len ) p %= (ptrdiff_t)len; } else if( borderType == BORDER_MODE_CONSTANT ) p = -1; else internal::assertSupportedConfiguration(false); return p - (ptrdiff_t)startMargin; } } // namespace internal } // namespace CAROTENE_NS