source/select.cpp

   1 #include <GL/gl.h>
   2 #include "select.h"
   3
   4 using namespace std;
   5
   6 namespace Msp {
   7 namespace GL {
   8
   9 vector<SelectRecord> *select_buf=0;
  10 vector<uint> select_buf_int;
  11
  12 void select_buffer(vector<SelectRecord> &buf)
  13 {
  14         select_buf_int.resize(1024);
  15         glSelectBuffer(select_buf_int.size(), &select_buf_int[0]);
  16         select_buf=&buf;
  17 }
  18
  19 void parse_select_records(const uint *buf, uint count, vector<SelectRecord> &tbuf)
  20 {
  21         uint i=0;
  22         while(count--)
  23         {
  24                 SelectRecord record;
  25
  26                 uint n_names=buf[i++];
  27                 record.min_depth=buf[i++];
  28                 record.max_depth=buf[i++];
  29
  30                 record.names.reserve(n_names);
  31                 while(n_names--)
  32                         record.names.push_back(buf[i++]);
  33
  34                 tbuf.push_back(record);
  35         }
  36 }
  37
  38 void _parse_internal_select_records(uint count)
  39 {
  40         if(!select_buf)
  41                 //XXX throw InvalidOperation();
  42                 return;
  43         parse_select_records(&select_buf_int[0], count, *select_buf);
  44 }
  45
  46 } // namespace GL
  47 } // namespace Msp