-/* $Id$
-
-This file is part of libmspgl
-Copyright © 2007 Mikko Rasa, Mikkosoft Productions
-Distributed under the LGPL
-*/
-
-#include "except.h"
+#include <stdexcept>
#include "light.h"
+#include "lightunit.h"
#include "misc.h"
using namespace std;
namespace GL {
Light::Light():
- ambient(0),
diffuse(1),
specular(1),
position(0, 0, 1, 0),
spot_exp(0),
spot_cutoff(180)
{
- attenuation[0]=1;
- attenuation[1]=0;
- attenuation[2]=0;
-}
-
-void Light::set_ambient(const Color &c)
-{
- ambient=c;
+ attenuation[0] = 1;
+ attenuation[1] = 0;
+ attenuation[2] = 0;
}
void Light::set_diffuse(const Color &c)
{
- diffuse=c;
+ diffuse = c;
}
void Light::set_specular(const Color &c)
{
- specular=c;
+ specular = c;
}
void Light::set_position(const Vector4 &p)
{
- position=p;
+ position = p;
}
void Light::set_spot_direction(const Vector3 &d)
{
- spot_dir=d;
+ spot_dir = d;
}
void Light::set_spot_exponent(float e)
{
- spot_exp=e;
+ spot_exp = e;
}
void Light::set_spot_cutoff(float c)
{
- spot_cutoff=c;
+ spot_cutoff = c;
}
void Light::set_attenuation(float c, float l, float q)
{
- attenuation[0]=c;
- attenuation[1]=l;
- attenuation[2]=q;
+ attenuation[0] = c;
+ attenuation[1] = l;
+ attenuation[2] = q;
}
-void Light::bind() const
+void Light::bind_to(unsigned i) const
{
- if(current_lights[current_unit]!=this)
+ LightUnit &unit = LightUnit::get_unit(i);
+ if(unit.set_light(this))
{
- GLenum l=GL_LIGHT0+current_unit;
+ GLenum l = GL_LIGHT0+unit.get_index();
enable(l);
- glLightfv(l, GL_AMBIENT, &ambient.r);
glLightfv(l, GL_DIFFUSE, &diffuse.r);
glLightfv(l, GL_SPECULAR, &specular.r);
glLightfv(l, GL_POSITION, &position.x);
glLightf(l, GL_CONSTANT_ATTENUATION, attenuation[0]);
glLightf(l, GL_LINEAR_ATTENUATION, attenuation[1]);
glLightf(l, GL_QUADRATIC_ATTENUATION, attenuation[2]);
- current_lights[current_unit]=this;
}
}
-void Light::bind_to(unsigned i) const
-{
- activate(i);
- bind();
-}
-
-void Light::activate(unsigned i)
+const Light *Light::current(unsigned i)
{
- static unsigned max_lights=get_i(GL_MAX_LIGHTS);
-
- if(i>=max_lights)
- throw InvalidParameterValue("Light unit index out of range");
-
- if(i>=current_lights.size())
- current_lights.resize(i+1);
-
- current_unit=i;
+ return LightUnit::get_unit(i).get_light();
}
-void Light::unbind()
+void Light::unbind_from(unsigned i)
{
- if(current_lights[current_unit])
- {
- disable(GL_LIGHT0+current_unit);
- current_lights[current_unit]=0;
- }
+ LightUnit &unit = LightUnit::get_unit(i);
+ if(unit.set_light(0))
+ disable(GL_LIGHT0+unit.get_index());
}
-unsigned Light::current_unit=0;
-vector<const Light *> Light::current_lights(1);
-
} // namespace GL
} // namespace Msp