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root/radiance/ray/src/util/rmatrix.h
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Comparing ray/src/util/rmatrix.h (file contents):
Revision 2.8 by greg, Mon Aug 28 15:59:46 2017 UTC vs.
Revision 2.26 by greg, Fri Apr 4 18:06:48 2025 UTC

# Line 12 | Line 12
12   extern "C" {
13   #endif
14  
15 < /* General plane-ordered component matrix */
15 > /* Preferred BSDF component:
16 >        none, transmission, reflection front (normal side), reflection back */
17 > typedef enum {RMPnone=-1, RMPtrans=0, RMPreflF, RMPreflB} RMPref;
18 >
19 > /* RMATRIX flags (usually private):
20 >        need to swap input, we should free memory */
21 > #define RMF_SWAPIN      1
22 > #define RMF_FREEMEM     2
23 >
24 > #ifndef MAXCOMP
25 > #define MAXCOMP         MAXCSAMP        /* #components we support */
26 > #endif
27 >                                        /* Set in-core data type */
28 > #if !defined(DTrmx_native) || DTrmx_native==DTfloat
29 > #define DTrmx_native    DTfloat
30 > #define rmx_dtype       float
31 > #define rmx_scanfmt     "%f"
32 > #elif DTrmx_native==DTdouble
33 > #define rmx_dtype       double
34 > #define rmx_scanfmt     "%lf"
35 > #endif
36 >
37 > /* General [row][col][cmp] component matrix */
38   typedef struct {
39 <        int     nrows, ncols, ncomp;
40 <        int     dtype;
41 <        char    *info;
42 <        double  mtx[1];                 /* extends struct */
39 >        char            *info;
40 >        void            *mapped;
41 >        rmx_dtype       *mtx;
42 >        COLOR           cexp;
43 >        float           wlpart[4];
44 >        int             nrows, ncols;
45 >        short           ncomp;
46 >        uby8            dtype;
47 >        uby8            pflags;
48   } RMATRIX;
49  
50 < #define rmx_lval(rm,r,c,i)      (rm)->mtx[(i)+(rm)->ncomp*((c)+(rm)->ncols*(r))]
50 > #define rmx_lval(rm,r,c)        ((rm)->mtx + (rm)->ncomp*((c)+(size_t)(rm)->ncols*(r)))
51 > #define rmx_val                 rmx_lval
52  
53 < /* Allocate a nr x nc matrix with n components */
53 > #define rmx_array_size(rm)      (sizeof(rmx_dtype)*(rm)->nrows*(rm)->ncols*(rm)->ncomp)
54 > #define rmx_mapped_size(rm)     ((char *)(rm)->mtx + rmx_array_size(rm) - (char *)(rm)->mapped)
55 >
56 > /* Initialize a RMATRIX struct but don't allocate array space */
57 > extern RMATRIX  *rmx_new(int nr, int nc, int n);
58 >
59 > /* Prepare a RMATRIX for writing (allocate array if needed) */
60 > extern int      rmx_prepare(RMATRIX *rm);
61 >
62 > /* Call rmx_new() and rmx_prepare() */
63   extern RMATRIX  *rmx_alloc(int nr, int nc, int n);
64  
65 < /* Free a RMATRIX array */
65 > /* Clear state by freeing info and matrix data */
66 > extern void     rmx_reset(RMATRIX *rm);
67 >
68 > /* Free an RMATRIX struct and data */
69   extern void     rmx_free(RMATRIX *rm);
70  
71   /* Resolve data type based on two input types (returns 0 for mismatch) */
72   extern int      rmx_newtype(int dtyp1, int dtyp2);
73  
74 + /* Read matrix header from input stream (cannot be XML) */
75 + extern int      rmx_load_header(RMATRIX *rm, FILE *fp);
76 +
77 + /* Load next row as rmx_dtype (cannot be XML) */
78 + extern int      rmx_load_row(rmx_dtype *drp, const RMATRIX *rm, FILE *fp);
79 +
80 + /* Allocate & load post-header data from stream given type set in rm->dtype */
81 + extern int      rmx_load_data(RMATRIX *rm, FILE *fp);
82 +
83   /* Load matrix from supported file type (NULL for stdin, '!' with command) */
84 < extern RMATRIX  *rmx_load(const char *inspec);
84 > extern RMATRIX  *rmx_load(const char *inspec, RMPref rmp);
85  
86   /* Append header information associated with matrix data */
87   extern int      rmx_addinfo(RMATRIX *rm, const char *info);
88  
89 < /* Write matrix to file type indicated by dtype */
89 > /* Finish writing header data with resolution and format, returning type used */
90 > extern int      rmx_write_header(const RMATRIX *rm, int dtype, FILE *fp);
91 >
92 > /* Write out matrix data (usually by row) */
93 > extern int      rmx_write_data(const rmx_dtype *dp, int nc, int len,
94 >                                int dtype, FILE *fp);
95 >
96 > /* Write matrix using file format indicated by dtype */
97   extern int      rmx_write(const RMATRIX *rm, int dtype, FILE *fp);
98  
99   /* Allocate and assign square identity matrix with n components */
# Line 46 | Line 102 | extern RMATRIX *rmx_identity(int dim, int n);
102   /* Duplicate the given matrix */
103   extern RMATRIX  *rmx_copy(const RMATRIX *rm);
104  
105 < /* Allocate and assign transposed matrix */
106 < extern RMATRIX  *rmx_transpose(const RMATRIX *rm);
105 > /* Replace data in first matrix with data from second */
106 > extern int      rmx_transfer_data(RMATRIX *rdst, RMATRIX *rsrc, int dometa);
107 >
108 > /* Transpose the given matrix */
109 > extern int      rmx_transpose(RMATRIX *rm);
110  
111   /* Multiply (concatenate) two matrices and allocate the result */
112   extern RMATRIX  *rmx_multiply(const RMATRIX *m1, const RMATRIX *m2);

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