grid.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <stddef.h>
#include "tachyon.h"
#include "macros.h"
#include "vector.h"
#include "intersect.h"
#include "util.h"
#include "ui.h"
#include "parallel.h"
#include "grid.h"

Go to the source code of this file.

Macros
#define	TACHYON_INTERNAL   1
#define	GRID_PRIVATE
#define	cbrt(x)

Functions
object *	newgrid (scenedef *scene, int xsize, int ysize, int zsize, vector min, vector max)
static int	grid_bbox (void *obj, vector *min, vector *max)
static void	grid_free (void *v)
static void	globalbound (object **rootlist, vector *gmin, vector *gmax)
static ptrdiff_t	cellbound (const grid *g, const gridindex *index, vector *cmin, vector *cmax)
static int	countobj (object *root)
static void	gridstats (int xs, int ys, int zs, int numobj)
int	engrid_scene (scenedef *scene, int boundthresh)
static ptrdiff_t	engrid_objlist (grid *g, object **list)
static int	engrid_cell (scenedef *scene, int boundthresh, grid *gold, gridindex *index)
static int	engrid_objectlist (grid *g, objectlist **list)
static int	engrid_object (grid *g, object *obj, int addtolist)
static int	pos2grid (grid *g, vector *pos, gridindex *index)
static void	grid_intersect (const grid *g, ray *ry)
static int	grid_bounds_intersect (const grid *g, const ray *ry, flt *hitnear, flt *hitfar)

Variables
static object_methods	grid_methods

Macro Definition Documentation

cbrt

#define cbrt

(

x

)

Value:

((x) > 0.0 ? pow((double)(x), 1.0/3.0) : \
                          ((x) < 0.0 ? -pow((double)-(x), 1.0/3.0) : 0.0))

Definition at line 30 of file grid.c.

Referenced by engrid_cell(), and engrid_scene().

GRID_PRIVATE

#define GRID_PRIVATE

Definition at line 26 of file grid.c.

TACHYON_INTERNAL

#define TACHYON_INTERNAL   1

Definition at line 17 of file grid.c.

Function Documentation

cellbound()

static ptrdiff_t cellbound ( const grid *  g, const gridindex *  index, vector *  cmin, vector *  cmax  )

static

Definition at line 137 of file grid.c.

References MYMAX, and MYMIN.

Referenced by engrid_cell().

countobj()

static int countobj ( object *  root )

static

Definition at line 202 of file grid.c.

Referenced by engrid_scene().

engrid_cell()

static int engrid_cell ( scenedef *  scene, int  boundthresh, grid *  gold, gridindex *  index  )

static

Definition at line 315 of file grid.c.

References cbrt, cellbound(), engrid_objectlist(), gridstats(), MYMAX, newgrid(), and VSub().

Referenced by engrid_scene().

engrid_object()

static int engrid_object ( grid *  g, object *  obj, int  addtolist  )

static

Definition at line 396 of file grid.c.

References pos2grid().

Referenced by engrid_objectlist(), and engrid_objlist().

engrid_objectlist()

static int engrid_objectlist ( grid *  g, objectlist **  list  )

static

Definition at line 368 of file grid.c.

References engrid_object().

Referenced by engrid_cell().

engrid_objlist()

static ptrdiff_t engrid_objlist ( grid *  g, object **  list  )

static

Definition at line 288 of file grid.c.

References engrid_object().

Referenced by engrid_scene().

engrid_scene()

int engrid_scene	(	scenedef *	scene,
		int	boundthresh
	)

Definition at line 224 of file grid.c.

References cbrt, countobj(), engrid_cell(), engrid_objlist(), globalbound(), gridstats(), MSG_0, newgrid(), and rt_ui_message().

Referenced by rendercheck().

globalbound()

static void globalbound ( object **  rootlist, vector *  gmin, vector *  gmax  )

static

Definition at line 107 of file grid.c.

References MYMAX, and MYMIN.

Referenced by engrid_scene().

grid_bbox()

static int grid_bbox ( void *  obj, vector *  min, vector *  max  )

static

Definition at line 71 of file grid.c.

grid_bounds_intersect()

static int grid_bounds_intersect ( const grid *  g, const ray *  ry, flt *  hitnear, flt *  hitfar  )

static

Definition at line 638 of file grid.c.

Referenced by grid_intersect().

grid_free()

static void grid_free ( void *  v )

static

Definition at line 80 of file grid.c.

References free_objects().

grid_intersect()

static void grid_intersect ( const grid *  g, ray *  ry  )

static

Definition at line 479 of file grid.c.

References grid_bounds_intersect().

gridstats()

static void gridstats ( int  xs, int  ys, int  zs, int  numobj  )

static

Definition at line 216 of file grid.c.

References MSG_0, and rt_ui_message().

Referenced by engrid_cell(), and engrid_scene().

newgrid()

object* newgrid	(	scenedef *	scene,
		int	xsize,
		int	ysize,
		int	zsize,
		vector	min,
		vector	max
	)

Definition at line 41 of file grid.c.

References grid_methods, new_objectid(), and VSub().

Referenced by engrid_cell(), and engrid_scene().

pos2grid()

static int pos2grid ( grid *  g, vector *  pos, gridindex *  index  )

static

Definition at line 452 of file grid.c.

Referenced by engrid_object().

Variable Documentation

grid_methods

object_methods grid_methods

static

Initial value:

= {
  (void (*)(const void *, void *))(grid_intersect),
  (void (*)(const void *, const void *, const void *, void *))(NULL),
  grid_bbox, 
  grid_free 
}

Definition at line 34 of file grid.c.

Referenced by newgrid().