Refresh lighting and culling uniforms if the camera changes in pop_state

[libs/gl.git] / source / camera.h

diff --git a/source/camera.h b/source/camera.h
index 8be79abf9715195d0c5feb978b239c8c925bfa9c..59cbaae3760599148a4a9de610ae3b6e514d3003 100644 (file)
--- a/source/camera.h
+++ b/source/camera.h
@@ -1,13 +1,7 @@
-/* $Id$
-
-This file is part of libmspgl
-Copyright © 2010  Mikko Rasa, Mikkosoft Productions
-Distributed under the LGPL
-*/
-
 #ifndef MSP_GL_CAMERA_H_
 #define MSP_GL_CAMERA_H_
 
+#include "matrix.h"
 #include "vector.h"
 
 namespace Msp {
@@ -16,22 +10,39 @@ namespace GL {
 class Camera
 {
 private:
-       float fov;
+       Geometry::Angle<float> fov;
+       float height;
        float aspect;
        // Some compilers have "near" and "far" keywords
        float clip_near;
        float clip_far;
+       float frustum_x;
+       float frustum_y;
+       Geometry::Angle<float> rotate;
        Vector3 position;
        Vector3 look_dir;
        Vector3 up_dir;
-       float matrix[16];
+       Matrix view_matrix;
+       Matrix object_matrix;
+       Matrix proj_matrix;
 
 public:
        Camera();
 
-       void set_field_of_view(float);
+       void set_field_of_view(const Geometry::Angle<float> &);
+       void set_orthographic(float, float);
        void set_aspect(float);
        void set_depth_clip(float, float);
+       void set_frustum_axis(float, float);
+       void set_frustum_rotation(const Geometry::Angle<float> &);
+       const Geometry::Angle<float> &get_field_of_view() const { return fov; }
+       bool is_orthographic() const { return fov==Geometry::Angle<float>::zero(); }
+       float get_orthographic_width() const { return height*aspect; }
+       float get_orthographic_height() const { return height; }
+       float get_aspect() const { return aspect; }
+       float get_near_clip() const { return clip_near; }
+       float get_far_clip() const { return clip_far; }
+       const Geometry::Angle<float> &get_frustum_rotation() const { return rotate; }
 
        void set_position(const Vector3 &);
        void set_look_direction(const Vector3 &);
@@ -41,13 +52,30 @@ public:
        const Vector3 &get_look_direction() const { return look_dir; }
        const Vector3 &get_up_direction() const { return up_dir; }
 
+       /** Deprecated alias for get_view_matrix. */
+       const Matrix &get_matrix() const { return get_view_matrix(); }
+
+       /** Returns the view matrix, used to transform coordinates from world space
+       to eye space. */
+       const Matrix &get_view_matrix() const { return view_matrix; }
+
+       /** Returns the object matrix, used to transform coordinates from eye space
+       to world space. */
+       const Matrix &get_object_matrix() const { return object_matrix; }
+
+       /** Returns the projection matrix. */
+       const Matrix &get_projection_matrix() const { return proj_matrix; }
+
        Vector3 project(const Vector4 &) const;
+       Vector3 project(const Vector3 &) const;
        Vector4 unproject(const Vector4 &) const;
+       Vector3 unproject(const Vector3 &) const;
 
        void apply() const;
 
 private:
-       void compute_matrix();
+       void update_projection_matrix();
+       void update_object_matrix();
 };
 
 } // namespace GL