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 #include "matrix.h"
   7
   8 using namespace std;
   9
  10 namespace Msp {
  11 namespace GL {
  12
  13 unsigned Clipping::get_n_attach_points()
  14 {
  15         return Limits::get_global().max_clip_planes;
  16 }
  17
  18 void Clipping::attach(const ClipPlane &p)
  19 {
  20         if(find_member(planes, &p, &AttachedPlane::plane)!=planes.end())
  21                 return;
  22         if(planes.size()>=Limits::get_global().max_clip_planes)
  23                 throw invalid_operation("Clipping::attach");
  24
  25         planes.push_back(&p);
  26 }
  27
  28 void Clipping::detach(const ClipPlane &p)
  29 {
  30         vector<AttachedPlane>::iterator i = find_member(planes, &p, &AttachedPlane::plane);
  31         if(i!=planes.end())
  32                 planes.erase(i);
  33 }
  34
  35 void Clipping::detach(unsigned i)
  36 {
  37         if(i<planes.size())
  38                 detach(*planes[i].plane);
  39 }
  40
  41 const ProgramData &Clipping::get_shader_data() const
  42 {
  43         for(unsigned i=0; i<planes.size(); ++i)
  44                 if(planes[i].plane->get_generation()!=planes[i].generation)
  45                 {
  46                         planes[i].plane->update_shader_data(shdata, i);
  47                         planes[i].generation = planes[i].plane->get_generation();
  48                 }
  49
  50         return shdata;
  51 }
  52
  53 } // namespace GL
  54 } // namespace Msp