#include <msp/core/algorithm.h>
-#include <msp/gl/extensions/msp_clipping.h>
#include "clipping.h"
#include "clipplane.h"
+#include "deviceinfo.h"
#include "error.h"
-#include "matrix.h"
-#include "misc.h"
using namespace std;
unsigned Clipping::get_n_attach_points()
{
- static Require _req(MSP_clipping);
- static int count = get_i(GL_MAX_CLIP_PLANES);
- return count;
+ return Limits::get_global().max_clip_planes;
}
void Clipping::attach(const ClipPlane &p)
{
- if(find(planes, &p)!=planes.end())
+ if(find_member(planes, &p, &AttachedPlane::plane)!=planes.end())
return;
- if(planes.size()>=get_n_attach_points())
+ if(planes.size()>=Limits::get_global().max_clip_planes)
throw invalid_operation("Clipping::attach");
planes.push_back(&p);
- if(current()==this)
- glEnable(GL_CLIP_PLANE0+planes.size()-1);
}
void Clipping::detach(const ClipPlane &p)
{
- vector<const ClipPlane *>::iterator i = find(planes, &p);
+ vector<AttachedPlane>::iterator i = find_member(planes, &p, &AttachedPlane::plane);
if(i!=planes.end())
- {
planes.erase(i);
- if(current()==this)
- disable(GL_CLIP_PLANE0+planes.size());
-
- }
}
void Clipping::detach(unsigned i)
{
if(i<planes.size())
- detach(*planes[i]);
+ detach(*planes[i].plane);
}
-void Clipping::update_shader_data(ProgramData &shdata, const Matrix &view_matrix) const
+const ProgramData &Clipping::get_shader_data() const
{
- Matrix view_inverse = invert(view_matrix);
for(unsigned i=0; i<planes.size(); ++i)
- planes[i]->update_shader_data(shdata, view_inverse, i);
-}
-
-void Clipping::bind() const
-{
- static Require _req(MSP_clipping);
-
- const Clipping *old = current();
- if(!set_current(this))
- return;
-
- for(unsigned i=0; i<planes.size(); ++i)
- enable(GL_CLIP_PLANE0+i);
-
- if(old)
- {
- for(unsigned i=planes.size(); i<old->planes.size(); ++i)
- disable(GL_CLIP_PLANE0+i);
- }
-}
-
-void Clipping::unbind()
-{
- const Clipping *old = current();
- if(!set_current(0))
- return;
+ if(planes[i].plane->get_generation()!=planes[i].generation)
+ {
+ planes[i].plane->update_shader_data(shdata, i);
+ planes[i].generation = planes[i].plane->get_generation();
+ }
- for(unsigned i=0; i<old->planes.size(); ++i)
- disable(GL_CLIP_PLANE0+i);
+ return shdata;
}
} // namespace GL