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root/Development/ray/src/common/interp2d.h
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Comparing ray/src/common/interp2d.h (file contents):
Revision 2.1 by greg, Sat Feb 9 00:55:40 2013 UTC vs.
Revision 2.3 by greg, Sat Feb 9 20:56:40 2013 UTC

# Line 5 | Line 5
5   *      G.Ward Feb 2013
6   */
7  
8 + #ifndef _RAD_INTERP2D_H_
9 + #define _RAD_INTERP2D_H_
10 +
11 + #ifdef __cplusplus
12 + extern "C" {
13 + #endif
14 +
15   #define NI2DSMF 0.42f                   /* minimal smoothing radius */
16  
17   #define NI2DIR  (2*4)                   /* # interpolation directions */
# Line 21 | Line 28 | typedef struct {
28   /* Allocate a new set of interpolation samples (caller assigns spt[] array) */
29   extern INTERP2  *interp2_alloc(int nsamps);
30  
31 + /* Resize interpolation array (caller must assign any new values) */
32 + extern INTERP2  *interp2_realloc(INTERP2 *ip, int nsamps);
33 +
34   /* Assign full set of normalized weights to interpolate the given location */
35   extern int      interp2_weights(float wtv[], INTERP2 *ip, double x, double y);
36  
37   /* Get normalized weights and indexes for n best samples in descending order */
38   extern int      interp2_topsamp(float wt[], int si[], const int n,
39                                          INTERP2 *ip, double x, double y);
30 –
40   /* Free interpolant */
41   extern void     interp2_free(INTERP2 *ip);
42 +
43 + /* (Re)compute anisotropic basis function interpolant (normally automatic) */
44 + extern int      interp2_analyze(INTERP2 *ip);
45 +
46 + #ifdef __cplusplus
47 + }
48 + #endif
49 + #endif  /* !_RAD_INTERP2D_H_ */

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