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greg |
2.22 |
/* RCSid $Id: rmatrix.h,v 2.21 2024/05/19 15:32:24 greg Exp $ */
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greg |
2.1 |
/*
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* Header file for general matrix routines.
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*/
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#ifndef _RAD_RMATRIX_H_
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#define _RAD_RMATRIX_H_
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#include "cmatrix.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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greg |
2.13 |
/* Preferred BSDF component:
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greg |
2.19 |
none, transmission, reflection front (normal side), reflection back */
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typedef enum {RMPnone=-1, RMPtrans=0, RMPreflF, RMPreflB} RMPref;
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greg |
2.13 |
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greg |
2.21 |
/* Private flags:
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need to swap input, need to free/unmap memory */
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#define RMF_SWAPIN 1
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#define RMF_OURMEM 2
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greg |
2.22 |
#define DTrmx_native DTdouble /* in-core data type */
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greg |
2.14 |
/* General [row][col][cmp] component matrix */
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greg |
2.1 |
typedef struct {
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greg |
2.14 |
char *info;
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void *mapped;
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double *mtx;
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COLOR cexp;
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greg |
2.16 |
float wlpart[4];
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greg |
2.11 |
int nrows, ncols;
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short ncomp;
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uby8 dtype;
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greg |
2.21 |
uby8 pflags;
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greg |
2.1 |
} RMATRIX;
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greg |
2.15 |
#define rmx_lval(rm,r,c) ((rm)->mtx + (rm)->ncomp*((c)+(size_t)(rm)->ncols*(r)))
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greg |
2.17 |
#define rmx_val rmx_lval
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greg |
2.1 |
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greg |
2.21 |
#define rmx_array_size(rm) (sizeof(double)*(rm)->nrows*(rm)->ncols*(rm)->ncomp)
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#define rmx_mapped_size(rm) ((char *)(rm)->mtx + rmx_array_size(rm) - (char *)(rm)->mapped)
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greg |
2.14 |
/* Initialize a RMATRIX struct but don't allocate array space */
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extern RMATRIX *rmx_new(int nr, int nc, int n);
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/* Prepare a RMATRIX for writing (allocate array if needed) */
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extern int rmx_prepare(RMATRIX *rm);
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/* Call rmx_new() and rmx_prepare() */
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greg |
2.1 |
extern RMATRIX *rmx_alloc(int nr, int nc, int n);
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greg |
2.19 |
/* Clear state by freeing info and matrix data */
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extern void rmx_reset(RMATRIX *rm);
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/* Free an RMATRIX struct and data */
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greg |
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extern void rmx_free(RMATRIX *rm);
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/* Resolve data type based on two input types (returns 0 for mismatch) */
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extern int rmx_newtype(int dtyp1, int dtyp2);
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greg |
2.17 |
/* Read matrix header from input stream (cannot be XML) */
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extern int rmx_load_header(RMATRIX *rm, FILE *fp);
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greg |
2.18 |
/* Load next row as double (cannot be XML) */
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extern int rmx_load_row(double *drp, const RMATRIX *rm, FILE *fp);
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greg |
2.17 |
/* Allocate & load post-header data from stream given type set in rm->dtype */
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extern int rmx_load_data(RMATRIX *rm, FILE *fp);
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greg |
2.7 |
/* Load matrix from supported file type (NULL for stdin, '!' with command) */
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greg |
2.13 |
extern RMATRIX *rmx_load(const char *inspec, RMPref rmp);
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greg |
2.1 |
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greg |
2.3 |
/* Append header information associated with matrix data */
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extern int rmx_addinfo(RMATRIX *rm, const char *info);
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greg |
2.19 |
/* Finish writing header data with resolution and format, returning type used */
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extern int rmx_write_header(const RMATRIX *rm, int dtype, FILE *fp);
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/* Write out matrix data (usually by row) */
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extern int rmx_write_data(const double *dp, int nc, int len,
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int dtype, FILE *fp);
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/* Write matrix using file format indicated by dtype */
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greg |
2.6 |
extern int rmx_write(const RMATRIX *rm, int dtype, FILE *fp);
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greg |
2.1 |
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/* Allocate and assign square identity matrix with n components */
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extern RMATRIX *rmx_identity(int dim, int n);
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/* Duplicate the given matrix */
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extern RMATRIX *rmx_copy(const RMATRIX *rm);
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greg |
2.20 |
/* Replace data in first matrix with data from second */
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extern int rmx_transfer_data(RMATRIX *rdst, RMATRIX *rsrc, int dometa);
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greg |
2.2 |
/* Allocate and assign transposed matrix */
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extern RMATRIX *rmx_transpose(const RMATRIX *rm);
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greg |
2.1 |
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/* Multiply (concatenate) two matrices and allocate the result */
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extern RMATRIX *rmx_multiply(const RMATRIX *m1, const RMATRIX *m2);
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greg |
2.8 |
/* Element-wise multiplication (or division) of m2 into m1 */
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extern int rmx_elemult(RMATRIX *m1, const RMATRIX *m2, int divide);
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greg |
2.1 |
/* Sum second matrix into first, applying scale factor beforehand */
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extern int rmx_sum(RMATRIX *msum, const RMATRIX *madd, const double sf[]);
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/* Scale the given matrix by the indicated scalar component vector */
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extern int rmx_scale(RMATRIX *rm, const double sf[]);
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/* Allocate new matrix and apply component transformation */
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extern RMATRIX *rmx_transform(const RMATRIX *msrc, int n, const double cmat[]);
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/* Convert a color matrix to newly allocated RMATRIX buffer */
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extern RMATRIX *rmx_from_cmatrix(const CMATRIX *cm);
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/* Convert general matrix to newly allocated CMATRIX buffer */
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extern CMATRIX *cm_from_rmatrix(const RMATRIX *rm);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _RAD_RMATRIX_H_ */
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