src/px/warp3d.h

/* RCSid: $Id$ */
/*
 * Header file for 3D warping routines.
 */

#include "lookup.h"

                                /* interpolation flags */
#define W3EXACT         01              /* no interpolation (slow) */
#define W3FAST          02              /* discontinuous approx. (fast) */

                                /* return flags for warp3d() */
#define W3OK            0               /* normal return status */
#define W3GAMUT         01              /* out of gamut */
#define W3BADMAP        02              /* singular map */
#define W3ERROR         04              /* system error (check errno) */

#define GNBITS  6               /* number of bits per grid size <= 8 */
#define MAXGN   (1<<GNBITS)     /* maximum grid dimension */

typedef unsigned char   GNDX[3];        /* grid index type */

typedef float   W3VEC[3];       /* vector type for 3D warp maps */

struct grid3d {
        unsigned char   flags;          /* interpolation flags */
        GNDX    gn;                     /* grid dimensions */
        W3VEC   gmin, gstep;            /* grid corner and voxel size */
        LUTAB   gtab;                   /* grid lookup table */
};                              /* a regular, sparse warping grid */

typedef struct {
        W3VEC   *ip, *ov;               /* discrete input/displ. pairs */
        int     npts;                   /* number of point pairs */
        W3VEC   llim, ulim;             /* lower and upper input limits */
        double  d2min, d2max;           /* min. and max. point distance^2 */
        struct grid3d   grid;           /* point conversion grid */
} WARP3D;                       /* a warp map */

extern WARP3D   *new3dw(), *load3dw();

#define  W3VCPY(v1,v2)  ((v1)[0]=(v2)[0],(v1)[1]=(v2)[1],(v1)[2]=(v2)[2])
Revision:	3.3
Committed:	Sat Feb 22 02:07:28 2003 UTC (21 years, 2 months ago) by greg
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rad3R5
Changes since 3.2:	+1 -4 lines
Log Message:	Changes and check-in for 3.5 release Includes new source files and modifications not recorded for many years See ray/doc/notes/ReleaseNotes for notes between 3.1 and 3.5 release
#	User	Rev	Content
1	greg	3.3	/* RCSid: $Id$ */
2	greg	3.1	/*
3			* Header file for 3D warping routines.
4			*/
5
6			#include "lookup.h"
7
8			/* interpolation flags */
9			#define W3EXACT 01 /* no interpolation (slow) */
10			#define W3FAST 02 /* discontinuous approx. (fast) */
11
12			/* return flags for warp3d() */
13			#define W3OK 0 /* normal return status */
14			#define W3GAMUT 01 /* out of gamut */
15			#define W3BADMAP 02 /* singular map */
16			#define W3ERROR 04 /* system error (check errno) */
17
18			#define GNBITS 6 /* number of bits per grid size <= 8 */
19			#define MAXGN (1<<GNBITS) /* maximum grid dimension */
20
21			typedef unsigned char GNDX[3]; /* grid index type */
22
23			typedef float W3VEC[3]; /* vector type for 3D warp maps */
24
25			struct grid3d {
26	greg	3.2	unsigned char flags; /* interpolation flags */
27	greg	3.1	GNDX gn; /* grid dimensions */
28	greg	3.2	W3VEC gmin, gstep; /* grid corner and voxel size */
29	greg	3.1	LUTAB gtab; /* grid lookup table */
30			}; /* a regular, sparse warping grid */
31
32			typedef struct {
33	greg	3.2	W3VEC ip, ov; /* discrete input/displ. pairs */
34	greg	3.1	int npts; /* number of point pairs */
35			W3VEC llim, ulim; /* lower and upper input limits */
36			double d2min, d2max; /* min. and max. point distance^2 */
37			struct grid3d grid; /* point conversion grid */
38			} WARP3D; /* a warp map */
39
40			extern WARP3D new3dw(), load3dw();
41
42			#define W3VCPY(v1,v2) ((v1)[0]=(v2)[0],(v1)[1]=(v2)[1],(v1)[2]=(v2)[2])