dataimport.rar_脑电信号处理_脑电滤波_脑电读取_脑电预处理_预处理 脑电

//////////////////////////////////////////////////////////////////////////////////////////////////// // // Copyright (C) 2004 Neuroshare Project // // This library is free software; you can redistribute it and/or // modify it under the terms of the GNU Lesser General Public // License as published by the Free Software Foundation; either // version 2.1 of the License, or (at your option) any later version. // // This library is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // Lesser General Public License for more details. // // A copy of the GNU Lesser General Public License can be obtained by writing to: // Free Software Foundation, Inc., // 59 Temple Place, Suite 330, // Boston, MA 02111-1307 // USA // // Contact information: // Kirk Korver // Cyberkinetics Inc. // 391 G Chipeta Way // Salt Lake City, UT 84108 // USA // kkorver@cyberkineticsinc.com // // // Website: // www.neuroshare.org // // All other copyrights on this material are replaced by this license agreeement. // /////////////////////////////////////////////////////////////////////////////////////////////////// // $Workfile: ns.c $ // // Specification : Glue to a neuroshare library // // Authors : Gopal Santhanam // // $Date: 4/26/04 2:45p $ // // $History: ns.c $ // // ***************** Version 6 ***************** // User: Kkorver Date: 4/26/04 Time: 2:45p // Updated in $/Neuroshare/Matlab wrapper // Remove testing of "campatible" libraries // // ***************** Version 5 ***************** // User: Kkorver Date: 4/26/04 Time: 2:19p // Updated in $/Neuroshare/Matlab wrapper // Added ability to specify library both with and without extension // // ***************** Version 4 ***************** // User: Kkorver Date: 4/21/04 Time: 3:12p // Updated in $/Neuroshare/Matlab wrapper // Library no-longer automatically adds the 'DLL' or 'SO' extension // // ***************** Version 3 ***************** // User: Kkorver Date: 2/03/04 Time: 4:44p // Updated in $/Neuroshare/nsNEVLibrary/ns // Updated glue to use current version of API 1.3 // // ***************** Version 2 ***************** // User: Kkorver Date: 2/03/04 Time: 1:08p // Updated in $/Neuroshare/ns_NEV/ns // Converted types from uint32 to UINT32 // // ***************** Version 1 ***************** // User: Kkorver Date: 1/14/04 Time: 10:33a // Created in $/Neuroshare/nsNEVLibrary/ns // Glue for any neuroshare library // // $NoKeywords: $ // ////////////////////////////////////////////////////////////////////////////// /*========================================================================= | Project : Neuroshare API Glue | File : ns.c | Version : v1.01 |-------------------------------------------------------------------------- | Portions of this file are copyright (c) 2002-2003 Total Phase, Inc. | All rights reserved. | www.totalphase.com | | 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 name of Total Phase, Inc. 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 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. |-------------------------------------------------------------------------- | | API definitions for the Neuroshare file format standard. | | Use the following files to access Neuroshare files: | ns.h -- API header file | ns.c -- API interface module | | A Neuroshare library is required in conjuction with this module. | For example: | ns_NEV.so -- Linux shared object | or | ns_NEV.dll -- Windows dynamic link library | ========================================================================*/ /*========================================================================= | INCLUDES ========================================================================*/ /* This #include can be customized to conform to the user's build paths. */ #include "ns.h" /*========================================================================= | VERSION CHECK ========================================================================*/ #define NS_CFILE_VERSION 0x0103 /* v1.03 */ #define NS_REQ_LIB_VERSION 0x0103 /* v1.03 */ /* * Make sure that the ns.h was included and that * the version numbers match. */ #ifndef NS_HEADER_VERSION # error Unable to include ns.h file. Please check include path. #elif NS_HEADER_VERSION != NS_CFILE_VERSION # error Version mismatch between ns.c and ns.h files. #endif /*========================================================================= | CONSTANTS ========================================================================*/ #define MAX_SO_PATH 256 /*========================================================================= | LINUX SUPPORT ========================================================================*/ #ifdef linux #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <string.h> #include <dlfcn.h> #include <fcntl.h> #define DLL_HANDLE void * #define SO_EXT ".so" #define stricmp strcasecmp /* * These functions allow the Linux behavior to emulate * the Windows behavior as specified below in the Windows * support section. * * First, search for the shared object in the application * binary path, then in the current working directory. * * Searching the application binary path requires /proc * filesystem support, which is standard in 2.4.x kernels. * * If the /proc filesystem is not present, the shared object * will not be loaded from the execution path unless that path * is either the current working directory or explicitly * specified in LD_LIBRARY_PATH. */ static int _checkPath (const char *path, char *so_name) { char *filename = (char *)malloc(strlen(path) +1 + strlen(so_name) +1); int fd; /* Check if the file is readable */ sprintf(filename, "%s/%s", path, so_name); fd = open(filename, O_RDONLY); if (fd >= 0) { strncpy(so_name, filename, MAX_SO_PATH); close(fd); } /* Clean up and exit */ free(filename); return (fd >= 0); } static void _setSearchPath (char *so_name) { char path[MAX_SO_PATH+1]; int count; char *p; /* Make sure that SO_NAME is not an absolute path. */ if (so_name[0] == '/') return; /* Check the execution directory name. */ count = readlink("/proc/self/exe", path, MAX