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glt/lightm.cpp

Go to the documentation of this file.

#include "lightm.h"

#include <glt/error.h>

#include <cstring>
using namespace std;

GltLightModel::GltLightModel(const bool getIt)
{
    memset(_ambient,0,sizeof(_ambient));
    _localViewer = false;
    _twoSide = false;

    if (getIt)
        get();
}

GltLightModel::~GltLightModel()
{
}

void 
GltLightModel::get()
{
    GLint localViewer;
    GLint twoSide;

    GLERROR

    glGetFloatv(GL_LIGHT_MODEL_AMBIENT,_ambient);
    glGetIntegerv(GL_LIGHT_MODEL_LOCAL_VIEWER,&localViewer);
    glGetIntegerv(GL_LIGHT_MODEL_TWO_SIDE,&twoSide);

    GLERROR

    _localViewer = localViewer!=0;
    _twoSide     = twoSide!=0;
}

void 
GltLightModel::set()
{
    GLERROR

    glLightModelfv(GL_LIGHT_MODEL_AMBIENT,_ambient);
    glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER,_localViewer ? 1 : 0);
    glLightModeli(GL_LIGHT_MODEL_TWO_SIDE,_twoSide ? 1 : 0);

    GLERROR
}

void 
GltLightModel::setAmbient(const GLfloat r,const GLfloat g,const GLfloat b,const GLfloat a)
{
    GLERROR

    _ambient[0] = r;
    _ambient[1] = g;
    _ambient[2] = b;
    _ambient[3] = a;
    glLightModelfv(GL_LIGHT_MODEL_AMBIENT,_ambient);

    GLERROR
}

void 
GltLightModel::setLocalViewer(const GLboolean localViewer)
{
    GLERROR

    _localViewer = localViewer;
    glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER,_localViewer ? 1 : 0);

    GLERROR
}

void 
GltLightModel::setTwoSide(const GLboolean twoSide)
{
    GLERROR

    _twoSide = twoSide;
    glLightModeli(GL_LIGHT_MODEL_TWO_SIDE,_twoSide ? 1 : 0);

    GLERROR
}

GLfloat   *GltLightModel::ambient()     { return _ambient;       }
GLboolean &GltLightModel::localViewer() { return _localViewer;   }
GLboolean &GltLightModel::twoSide()     { return _twoSide;       }

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