NodeCamera.h

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/* SPDX-FileCopyrightText: 2023 Blender Authors
 *
 * SPDX-License-Identifier: GPL-2.0-or-later */
 
#pragma once
 
#include "Node.h"
 
#include "../geometry/Geom.h"
 
#include "../system/FreestyleConfig.h"
 
namespace Freestyle {
 
using namespace Geometry;
 
class NodeOrthographicCamera;
 
class NodePerspectiveCamera;
 
class NodeCamera : public Node {
 public:
  typedef enum {
    PERSPECTIVE,
    ORTHOGRAPHIC,
    GENERIC,
  } CameraType;
 
  NodeCamera(CameraType camera_type = GENERIC);
#if 0 /* UNUSED, gives warning in gcc */
  NodeCamera(const NodeCamera &iBrother);
#endif
 
  virtual ~NodeCamera() {}
 
  virtual void accept(SceneVisitor &v);
 
  void setModelViewMatrix(const double modelview_matrix[16]);
 
  void setProjectionMatrix(const double projection_matrix[16]);
 
  double *modelViewMatrix()
  {
    return modelview_matrix_;
  }
 
  double *projectionMatrix()
  {
    return projection_matrix_;
  }
 
 protected:
  // row major right handed matrix
  double modelview_matrix_[16];
  // row major right handed matrix
  double projection_matrix_[16];
 
  CameraType camera_type_;
 
#ifdef WITH_CXX_GUARDEDALLOC
  MEM_CXX_CLASS_ALLOC_FUNCS("Freestyle:NodeCamera")
#endif
};
 
class NodeOrthographicCamera : public NodeCamera {
 public:
  NodeOrthographicCamera();
 
  NodeOrthographicCamera(
      double left, double right, double bottom, double top, double zNear, double zFar);
 
  double left() const
  {
    return left_;
  }
 
  double right() const
  {
    return right_;
  }
 
  double bottom() const
  {
    return bottom_;
  }
 
  double top() const
  {
    return top_;
  }
 
  double zNear() const
  {
    return zNear_;
  }
 
  double zFar() const
  {
    return zFar_;
  }
 
  NodeOrthographicCamera(const NodeOrthographicCamera &iBrother) = default;
 
 private:
  double left_;
  double right_;
  double bottom_;
  double top_;
  double zNear_;
  double zFar_;
 
#ifdef WITH_CXX_GUARDEDALLOC
  MEM_CXX_CLASS_ALLOC_FUNCS("Freestyle:NodeOrthographicCamera")
#endif
};
 
class NodePerspectiveCamera : public NodeCamera {
 public:
  NodePerspectiveCamera();
 
  NodePerspectiveCamera(double fovy, double aspect, double zNear, double zFar);
 
  NodePerspectiveCamera(
      double left, double right, double bottom, double top, double zNear, double zFar);
 
#ifdef WITH_CXX_GUARDEDALLOC
  MEM_CXX_CLASS_ALLOC_FUNCS("Freestyle:NodePerspectiveCamera")
#endif
};
 
} /* namespace Freestyle */