ViewVC Help
View File | Revision Log | Show Annotations | Download File | Root Listing
root/radiance/ray/src/util/rmatrix.h
Revision: 2.1
Committed: Sat May 31 05:02:37 2014 UTC (9 years, 10 months ago) by greg
Content type: text/plain
Branch: MAIN
Log Message:
Created rmtxop command, need to test and debug

File Contents

# Content
1 /* RCSid $Id$ */
2 /*
3 * Header file for general matrix routines.
4 */
5
6 #ifndef _RAD_RMATRIX_H_
7 #define _RAD_RMATRIX_H_
8
9 #include "cmatrix.h"
10
11 #ifdef __cplusplus
12 extern "C" {
13 #endif
14
15 /* General plane-ordered component matrix */
16 typedef struct {
17 int nrows, ncols, ncomp;
18 double mtx[1]; /* extends struct */
19 } RMATRIX;
20
21 #define rmx_indx(rm,r,c,i) (((i)*(rm)->nrows+(r))*(rm)->ncols+(c))
22
23 #define rmx_lval(rm,r,c,i) (rm)->mtx[rmx_indx(rm,r,c,i)]
24
25 #define rmx_free(rm) free(rm)
26
27 /* Allocate a nr x nc matrix with n components */
28 extern RMATRIX *rmx_alloc(int nr, int nc, int n);
29
30 /* Load matrix from supported file type */
31 extern RMATRIX *rmx_load(const char *fname);
32
33 /* Write matrix to file type indicated by dt */
34 extern long rmx_write(const RMATRIX *rm, int dtype, FILE *fp);
35
36 /* Allocate and assign square identity matrix with n components */
37 extern RMATRIX *rmx_identity(int dim, int n);
38
39 /* Duplicate the given matrix */
40 extern RMATRIX *rmx_copy(const RMATRIX *rm);
41
42 /* Swap rows and columns in the given matrix in situ */
43 extern int rmx_transpose(RMATRIX *rm);
44
45 /* Multiply (concatenate) two matrices and allocate the result */
46 extern RMATRIX *rmx_multiply(const RMATRIX *m1, const RMATRIX *m2);
47
48 /* Sum second matrix into first, applying scale factor beforehand */
49 extern int rmx_sum(RMATRIX *msum, const RMATRIX *madd, const double sf[]);
50
51 /* Scale the given matrix by the indicated scalar component vector */
52 extern int rmx_scale(RMATRIX *rm, const double sf[]);
53
54 /* Allocate new matrix and apply component transformation */
55 extern RMATRIX *rmx_transform(const RMATRIX *msrc, int n, const double cmat[]);
56
57 /* Convert a color matrix to newly allocated RMATRIX buffer */
58 extern RMATRIX *rmx_from_cmatrix(const CMATRIX *cm);
59
60 /* Convert general matrix to newly allocated CMATRIX buffer */
61 extern CMATRIX *cm_from_rmatrix(const RMATRIX *rm);
62
63 #ifdef __cplusplus
64 }
65 #endif
66 #endif /* _RAD_RMATRIX_H_ */