eic-opticks/sysrap/sc4u.cc

0001 // name=sc4u ; gcc $name.cc -std=c++11 -lstdc++ -I. -I/usr/local/cuda/include -o /tmp/$name && /tmp/$name && ipython -i -c "import numpy as np ; a = np.load('/tmp/p.npy') ; print(a.view(np.int8)) "
0002 #include "sc4u.h"
0003 #include "scuda.h"
0004 #include "squad.h"
0005 #include "NP.hh"
0006
0007
0008 int main(int argc, char** argv)
0009 {
0010     C4U c4u ;
0011
0012     c4u.c4.x = -128 ;
0013     c4u.c4.y = 127 ;    // NB int 128  flips to  char -128
0014     c4u.c4.z = -128 ;
0015     c4u.c4.w = -128 ;
0016
0017     unsigned u = c4u.u ;
0018
0019     std::cout << " c4u   " << C4U_desc(c4u) << std::endl ;
0020     std::cout << " c4u.u " << C4U_desc(u)   << std::endl ;
0021
0022     std::string s = C4U_name( u, "prefix", '_' );
0023
0024     std::cout << " C4U_name " << s << std::endl ;
0025
0026
0027
0028     quad4 p ;
0029     p.zero();
0030
0031     p.q3.u.w = u ;
0032
0033     NP::Write("/tmp/p.npy", (float*)(&p.q0.f.x), 1, 4, 4 );
0034
0035
0036
0037     return 0 ;
0038 }
0039
0040