source/core/clipping.cpp

   1 #include <msp/core/algorithm.h>
   2 #include "clipping.h"
   3 #include "clipplane.h"
   4 #include "deviceinfo.h"
   5 #include "error.h"
   6
   7 using namespace std;
   8
   9 namespace Msp {
  10 namespace GL {
  11
  12 void Clipping::attach(const ClipPlane &p)
  13 {
  14         if(find_member(planes, &p, &AttachedPlane::plane)!=planes.end())
  15                 return;
  16         if(planes.size()>=Limits::get_global().max_clip_planes)
  17                 throw invalid_operation("Clipping::attach");
  18
  19         planes.push_back(&p);
  20 }
  21
  22 void Clipping::detach(const ClipPlane &p)
  23 {
  24         auto i = find_member(planes, &p, &AttachedPlane::plane);
  25         if(i!=planes.end())
  26                 planes.erase(i);
  27 }
  28
  29 const ProgramData &Clipping::get_shader_data() const
  30 {
  31         for(unsigned i=0; i<planes.size(); ++i)
  32                 if(planes[i].plane->get_generation()!=planes[i].generation)
  33                 {
  34                         planes[i].plane->update_shader_data(shdata, i);
  35                         planes[i].generation = planes[i].plane->get_generation();
  36                 }
  37
  38         return shdata;
  39 }
  40
  41 } // namespace GL
  42 } // namespace Msp