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/*
Copyright (c) 2017,2018 Regents of the University of Minnesota.
All Rights Reserved.
See corresponding header file for details.
*/
#include "platform.h"
#include "mingfx_config.h"
#include <vector>
#include <sstream>
#ifdef WIN32
#include <windows.h>
#else
#include <sys/stat.h>
#endif
namespace mingfx {
bool Platform::FileExists(const std::string &filename) {
#ifdef WIN32
LPCTSTR szPath = (LPCTSTR)filename.c_str();
DWORD dwAttrib = GetFileAttributes(szPath);
return (dwAttrib != INVALID_FILE_ATTRIBUTES &&
!(dwAttrib & FILE_ATTRIBUTE_DIRECTORY));
#else
struct stat buf;
return (stat(filename.c_str(), &buf) == 0);
#endif
}
std::string Platform::FindFile(const std::string &basename, const std::vector<std::string> &searchpath) {
for (int i=0; i<searchpath.size(); i++) {
std::string fname = searchpath[i] + "/" + basename;
if (Platform::FileExists(fname)) {
return fname;
}
}
return basename;
}
std::string Platform::FindFile(const std::string &basename, const std::string &searchpath) {
std::vector<std::string> paths;
std::stringstream ss(searchpath);
std::string path;
while (ss >> path) {
paths.push_back(path);
if (ss.peek() == ';')
ss.ignore();
}
return FindFile(basename, paths);
}
std::string Platform::FindMinGfxDataFile(const std::string &basename) {
std::vector<std::string> searchpath;
searchpath.push_back(".");
searchpath.push_back("data");
searchpath.push_back(MINGFX_DATA_DIR_INSTALL);
searchpath.push_back(MINGFX_DATA_DIR_BUILD);
return FindFile(basename, searchpath);
}
std::string Platform::FindMinGfxShaderFile(const std::string &basename) {
std::vector<std::string> searchpath;
searchpath.push_back(".");
searchpath.push_back("shaders");
searchpath.push_back(MINGFX_SHADERS_DIR_INSTALL);
searchpath.push_back(MINGFX_SHADERS_DIR_BUILD);
return FindFile(basename, searchpath);
}
} // end namespace
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