// Filename: standardMunger.h
// Created by:  drose (21Mar05)
//
////////////////////////////////////////////////////////////////////
//
// PANDA 3D SOFTWARE
// Copyright (c) 2001 - 2004, Disney Enterprises, Inc.  All rights reserved
//
// All use of this software is subject to the terms of the Panda 3d
// Software license.  You should have received a copy of this license
// along with this source code; you will also find a current copy of
// the license at http://etc.cmu.edu/panda3d/docs/license/ .
//
// To contact the maintainers of this program write to
// panda3d-general@lists.sourceforge.net .
//
////////////////////////////////////////////////////////////////////

#ifndef STANDARDMUNGER_H
#define STANDARDMUNGER_H

#include "pandabase.h"
#include "stateMunger.h"
#include "graphicsStateGuardian.h"
#include "colorAttrib.h"
#include "colorScaleAttrib.h"
#include "renderModeAttrib.h"
#include "pointerTo.h"
#include "weakPointerTo.h"

////////////////////////////////////////////////////////////////////
//       Class : StandardMunger
// Description : Performs some generic munging that is appropriate for
//               all GSG types; for instance, applies ColorAttrib and
//               ColorScaleAttrib to the vertices, and checks for
//               hardware-accelerated animation capabilities.
////////////////////////////////////////////////////////////////////
class EXPCL_PANDA StandardMunger : public StateMunger {
public:
  StandardMunger(GraphicsStateGuardianBase *gsg, const RenderState *state,
                 int num_components, NumericType numeric_type,
                 Contents contents);
  virtual ~StandardMunger();

  INLINE GraphicsStateGuardian *get_gsg() const;

protected:
  virtual CPT(GeomVertexData) munge_data_impl(const GeomVertexData *data);
  virtual int compare_to_impl(const GeomMunger *other) const;
  virtual void munge_geom_impl(CPT(Geom) &geom, CPT(GeomVertexData) &data,
                               Thread *current_thread);
  virtual void premunge_geom_impl(CPT(Geom) &geom, CPT(GeomVertexData) &data);
  virtual int geom_compare_to_impl(const GeomMunger *other) const;
  virtual CPT(RenderState) munge_state_impl(const RenderState *state);

private:
  int _num_components;
  NumericType _numeric_type;
  Contents _contents;
  CPT(RenderModeAttrib) _render_mode;

  bool _munge_color;
  bool _munge_color_scale;

  Colorf _color;
  LVecBase4f _color_scale;

public:
  static TypeHandle get_class_type() {
    return _type_handle;
  }
  static void init_type() {
    StateMunger::init_type();
    register_type(_type_handle, "StandardMunger",
                  StateMunger::get_class_type());
  }
  virtual TypeHandle get_type() const {
    return get_class_type();
  }
  virtual TypeHandle force_init_type() {init_type(); return get_class_type();}

private:
  static TypeHandle _type_handle;
};

#include "standardMunger.I"

#endif

