eic-opticks/CSG/CSGSolid.h

0001 #pragma once
0002
0003 #include "CSGEnum.h"
0004
0005 #if defined(__CUDACC__) || defined(__CUDABE__)
0006 #else
0007 #include "plog/Severity.h"
0008 #include <string>
0009 #include "CSG_API_EXPORT.hh"
0010 #endif
0011
0012
0013 /**
0014 CSGSolid
0015 ==========
0016
0017 Currently this is not uploaded to GPU, but still coding like
0018 it might be in future, ie keep it simple, no refs,
0019 128 bit (16 byte) alignment
0020
0021 Extract from notes in externals/optix7sdk.bash::
0022
0023     CSGOptiX uses one GAS for each CSGSolid ("compound" of numPrim CSGPrim)
0024     and that one GAS always has only one buildInput which references
0025     numPrim SBT records which have "sbt-geometry-acceleration-structure-index"
0026     of (0,1,2,...,numPrim-1)
0027
0028
0029 Saving/loading the vector of CSGSolid in CSGFoundry
0030 is done by CSGFoundry::save,load,loadArray.
0031 Due to this no pointers are used in the below
0032 and the layout/alignment is kept simple for trivial
0033 debug access from python.
0034
0035 **/
0036
0037 struct CSG_API CSGSolid   // Composite shape
0038 {
0039     char        label[16] ;   // sizeof 4 int
0040     // raw use of so->label risks funny chars at slot 16, and truncation :  use getLabel() to avoid
0041
0042     int         numPrim ;
0043     int         primOffset ;
0044     int         type = STANDARD_SOLID ;
0045
0046     char        intent = '\0' ;
0047     char        pad0 = '\0' ;
0048     char        pad1 = '\0' ;
0049     char        pad2 = '\0' ;
0050
0051
0052     float4      center_extent ;
0053
0054
0055 #if defined(__CUDACC__) || defined(__CUDABE__)
0056 #else
0057     static const plog::Severity LEVEL ;
0058
0059     const char* getLabel() const ;
0060     bool labelMatch(const char* label) const ;
0061
0062     //char getLabelPrefix() const ;
0063     char getIntent() const ;  // 'R' 'F' 'T'   used for forced triangulation
0064     void setIntent(char _intent);
0065
0066     static void CopyIntent( CSGSolid* d,  const CSGSolid* s );
0067
0068     static bool IsDiff( const CSGSolid& a , const CSGSolid& b );
0069     static CSGSolid Make( const char* label_, int numPrim_, int primOffset_=-1 );
0070     static std::string MakeLabel(const char* typ0, unsigned idx0, char delim='_' );
0071     static std::string MakeLabel(char typ0, unsigned idx0 );
0072     static int         ParseLabel(const char* label, char& typ0, unsigned& idx0 );
0073     int                get_ridx() const ;
0074
0075     static std::string MakeLabel(char typ0, unsigned idx0, char typ1, unsigned idx1 );
0076     static std::string MakeLabel(char typ0, unsigned idx0, char typ1, unsigned idx1, char typ2, unsigned idx2 );
0077     std::string desc() const ;
0078
0079 #endif
0080
0081 };
0082
0083