src/px/warp3d.h

/* RCSid: $Id: warp3d.h,v 3.3 2003/02/22 02:07:28 greg Exp $ */
/*
 * Header file for 3D warping routines.
 */
#ifndef _RAD_WARP3D_H_
#define _RAD_WARP3D_H_

#include "lookup.h"

#ifdef __cplusplus
extern "C" {
#endif

                                /* 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])

#ifdef __cplusplus
}
#endif
#endif /* _RAD_WARP3D_H_ */

Revision:	3.4
Committed:	Mon Jul 14 22:24:00 2003 UTC (20 years, 9 months ago) by schorsch
Content type:	text/plain
Branch:	MAIN
Changes since 3.3:	+13 -1 lines
Log Message:	Instrumented headers against multiple inclusion and for use from C++. Moved includes in headers out of "C" scope.
#	User	Rev	Content
1	schorsch	3.4	/* RCSid: $Id: warp3d.h,v 3.3 2003/02/22 02:07:28 greg Exp $ */
2	greg	3.1	/*
3			* Header file for 3D warping routines.
4			*/
5	schorsch	3.4	#ifndef _RAD_WARP3D_H_
6			#define _RAD_WARP3D_H_
7	greg	3.1
8			#include "lookup.h"
9
10	schorsch	3.4	#ifdef __cplusplus
11			extern "C" {
12			#endif
13
14	greg	3.1	/* interpolation flags */
15			#define W3EXACT 01 /* no interpolation (slow) */
16			#define W3FAST 02 /* discontinuous approx. (fast) */
17
18			/* return flags for warp3d() */
19			#define W3OK 0 /* normal return status */
20			#define W3GAMUT 01 /* out of gamut */
21			#define W3BADMAP 02 /* singular map */
22			#define W3ERROR 04 /* system error (check errno) */
23
24			#define GNBITS 6 /* number of bits per grid size <= 8 */
25			#define MAXGN (1<<GNBITS) /* maximum grid dimension */
26
27			typedef unsigned char GNDX[3]; /* grid index type */
28
29			typedef float W3VEC[3]; /* vector type for 3D warp maps */
30
31			struct grid3d {
32	greg	3.2	unsigned char flags; /* interpolation flags */
33	greg	3.1	GNDX gn; /* grid dimensions */
34	greg	3.2	W3VEC gmin, gstep; /* grid corner and voxel size */
35	greg	3.1	LUTAB gtab; /* grid lookup table */
36			}; /* a regular, sparse warping grid */
37
38			typedef struct {
39	greg	3.2	W3VEC ip, ov; /* discrete input/displ. pairs */
40	greg	3.1	int npts; /* number of point pairs */
41			W3VEC llim, ulim; /* lower and upper input limits */
42			double d2min, d2max; /* min. and max. point distance^2 */
43			struct grid3d grid; /* point conversion grid */
44			} WARP3D; /* a warp map */
45
46			extern WARP3D new3dw(), load3dw();
47
48			#define W3VCPY(v1,v2) ((v1)[0]=(v2)[0],(v1)[1]=(v2)[1],(v1)[2]=(v2)[2])
49	schorsch	3.4
50			#ifdef __cplusplus
51			}
52			#endif
53			#endif /* _RAD_WARP3D_H_ */
54