#ifndef __LIGHTING_IMAGE_H__
#define __LIGHTING_IMAGE_H__

#include <libpika/pika.h>
#include <libpika/pikaui.h>


extern PikaDrawable *input_drawable;
extern PikaDrawable *output_drawable;
extern GeglBuffer   *source_buffer;
extern GeglBuffer   *dest_buffer;

extern PikaDrawable *bump_drawable;
extern GeglBuffer   *bump_buffer;
extern const Babl   *bump_format;

extern PikaDrawable *env_drawable;
extern GeglBuffer   *env_buffer;

extern guchar          *preview_rgb_data;
extern gint             preview_rgb_stride;
extern cairo_surface_t *preview_surface;

extern glong   maxcounter;
extern gint    width,height,env_width,env_height;
extern PikaRGB background;

extern gint   border_x1, border_y1, border_x2, border_y2;

extern guchar sinemap[256], spheremap[256], logmap[256];


guchar         peek_map        (GeglBuffer   *buffer,
                                const Babl   *format,
				gint          x,
				gint          y);
PikaRGB        peek            (gint          x,
				gint          y);
PikaRGB        peek_env_map    (gint          x,
				gint          y);
void           poke            (gint          x,
				gint          y,
				PikaRGB       *color);
gint           check_bounds    (gint          x,
				gint          y);
PikaVector3    int_to_pos      (gint          x,
				gint          y);
PikaVector3    int_to_posf     (gdouble       x,
				gdouble       y);
void           pos_to_int      (gdouble       x,
				gdouble       y,
				gint         *scr_x,
				gint         *scr_y);
void           pos_to_float    (gdouble       x,
				gdouble       y,
				gdouble      *xf,
				gdouble      *yf);
PikaRGB        get_image_color (gdouble       u,
				gdouble       v,
				gint         *inside);
gdouble        get_map_value   (GeglBuffer   *buffer,
                                const Babl   *format,
				gdouble       u,
				gdouble       v,
				gint         *inside);
gint           image_setup     (PikaDrawable *drawable,
				gint          interactive);
void           bumpmap_setup   (PikaDrawable *bumpmap);
void           envmap_setup    (PikaDrawable *envmap);


#endif  /* __LIGHTING_IMAGE_H__ */