| 1 |
greg |
2.2 |
/* RCSid $Id: cmatrix.h,v 2.1 2014/01/20 21:29:04 greg Exp $ */ |
| 2 |
greg |
2.1 |
/* |
| 3 |
|
|
* Color matrix routine declarations. |
| 4 |
|
|
* |
| 5 |
|
|
* G. Ward |
| 6 |
|
|
*/ |
| 7 |
|
|
|
| 8 |
|
|
#ifndef _RAD_CMATRIX_H_ |
| 9 |
|
|
#define _RAD_CMATRIX_H_ |
| 10 |
|
|
|
| 11 |
|
|
#include "color.h" |
| 12 |
|
|
|
| 13 |
|
|
#ifdef __cplusplus |
| 14 |
|
|
extern "C" { |
| 15 |
|
|
#endif |
| 16 |
|
|
|
| 17 |
|
|
/* Data types for file loading */ |
| 18 |
|
|
enum {DTfromHeader, DTascii, DTfloat, DTdouble, DTrgbe, DTxyze}; |
| 19 |
|
|
|
| 20 |
|
|
/* A color coefficient matrix -- vectors have ncols==1 */ |
| 21 |
|
|
typedef struct { |
| 22 |
|
|
int nrows, ncols; |
| 23 |
|
|
COLORV cmem[3]; /* extends struct */ |
| 24 |
|
|
} CMATRIX; |
| 25 |
|
|
|
| 26 |
|
|
#define COLSPEC (sizeof(COLORV)==sizeof(float) ? "%f %f %f" : "%lf %lf %lf") |
| 27 |
|
|
|
| 28 |
|
|
#define cm_lval(cm,r,c) ((cm)->cmem + 3*((r)*(cm)->ncols + (c))) |
| 29 |
|
|
|
| 30 |
|
|
#define cv_lval(cm,i) ((cm)->cmem + 3*(i)) |
| 31 |
|
|
|
| 32 |
|
|
/* Allocate a color coefficient matrix */ |
| 33 |
|
|
extern CMATRIX *cm_alloc(int nrows, int ncols); |
| 34 |
|
|
|
| 35 |
|
|
/* Resize color coefficient matrix */ |
| 36 |
|
|
extern CMATRIX *cm_resize(CMATRIX *cm, int nrows); |
| 37 |
|
|
|
| 38 |
|
|
#define cm_free(cm) free(cm) |
| 39 |
|
|
|
| 40 |
|
|
/* Load header to obtain data type */ |
| 41 |
greg |
2.2 |
extern int getDTfromHeader(FILE *fp); |
| 42 |
greg |
2.1 |
|
| 43 |
|
|
/* Allocate and load a matrix from the given file (or stdin if NULL) */ |
| 44 |
|
|
extern CMATRIX *cm_load(const char *fname, int nrows, int ncols, int dtype); |
| 45 |
|
|
|
| 46 |
|
|
/* Extract a column vector from a matrix */ |
| 47 |
|
|
extern CMATRIX *cm_column(const CMATRIX *cm, int c); |
| 48 |
|
|
|
| 49 |
|
|
/* Scale a matrix by a single value */ |
| 50 |
|
|
extern CMATRIX *cm_scale(const CMATRIX *cm1, const COLOR sca); |
| 51 |
|
|
|
| 52 |
|
|
/* Multiply two matrices (or a matrix and a vector) and allocate the result */ |
| 53 |
|
|
extern CMATRIX *cm_multiply(const CMATRIX *cm1, const CMATRIX *cm2); |
| 54 |
|
|
|
| 55 |
|
|
/* print out matrix as ASCII text -- no header */ |
| 56 |
|
|
extern void cm_print(const CMATRIX *cm, FILE *fp); |
| 57 |
|
|
|
| 58 |
|
|
/* Load and convert a matrix BSDF from the given XML file */ |
| 59 |
|
|
extern CMATRIX *cm_loadBSDF(char *fname, COLOR cLamb); |
| 60 |
|
|
|
| 61 |
|
|
#ifdef __cplusplus |
| 62 |
|
|
} |
| 63 |
|
|
#endif |
| 64 |
|
|
#endif /* _RAD_CMATRIX_H_ */ |
