VolSamples.cpp

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//------------------------------------------------------------------------
//
//   Joe Kniss
//     10-11-02
//                   ________    ____   ___ 
//                  |        \  /    | /  /
//                  +---+     \/     |/  /
//                  +--+|  |\    /|     < 
//                  |  ||  | \  / |  |\  \ 
//                  |      |  \/  |  | \  \ 
//                   \_____|      |__|  \__\
//                       Copyright  2002 
//                      Joe Michael Kniss
//                   <<< jmk@cs.utah.edu >>>
//               "All Your Base are Belong to Us"
//-------------------------------------------------------------------------

// VolSamples.cpp


#include <GL/glew.h>
#include "VolSamples.h"
#include <iostream>
using namespace std;

VolSamples::VolSamples(unsigned int size, 
                       unsigned int nTcoords)
: VSPRIM(GL_TRIANGLES, size, size, nTcoords, size, false, false, false, false)
{

}

#if 0
void VolSamples::bindDef()
{
   glVertexPointer(3, GL_FLOAT, 0, _verts.data());
   glEnableClientState(GL_VERTEX_ARRAY); 

   for(int i=0; i<NTEXCOORDS; ++i)
   {
      if(_texCoordEnabled[i])
      {
         glClientActiveTexture(GL_TEXTURE0_ARB + i);
         {
            glTexCoordPointer(4, GL_FLOAT, 0, _tcoords[i].data());
            glEnableClientState(GL_TEXTURE_COORD_ARRAY); 
         }
      }
   }
   glClientActiveTexture(GL_TEXTURE0_ARB);

   if(_optimize)
      glLockArraysEXT(0, _verts.size());
}

void VolSamples::releaseDef()
{
   if(_optimize)
      glUnlockArraysEXT();

   glDisableClientState(GL_VERTEX_ARRAY); 

   for(int i=0; i<NTEXCOORDS; ++i)
   {
      glClientActiveTexture(GL_TEXTURE0_ARB + i);
      {
         glDisableClientState(GL_TEXTURE_COORD_ARRAY); 
      }
   }
   glClientActiveTexture(GL_TEXTURE0_ARB);
}

void VolSamples::drawAll()
{
   glDrawElements(GL_TRIANGLES, 
      _nTris*3, 
      GL_UNSIGNED_INT, 
      _idx.data());
}

void VolSamples::draw(int primId)
{
   glDrawElements(GL_TRIANGLES, 
      (_prims[primId].y - _prims[primId].x)*3, 
      GL_UNSIGNED_INT, 
      _idx[_prims[primId].x].v());
}

#endif

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