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root/radiance/ray/src/common/tonemap.h
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Comparing ray/src/common/tonemap.h (file contents):
Revision 3.21 by greg, Tue Nov 15 06:53:00 2005 UTC vs.
Revision 3.28 by greg, Thu Jan 7 02:13:49 2021 UTC

# Line 7 | Line 7
7   #ifndef _RAD_TONEMAP_H_
8   #define _RAD_TONEMAP_H_
9  
10 < #include        "tifftypes.h"
10 > #include        "tiff.h"        /* needed for int32, etc. */
11  
12   #ifdef __cplusplus
13   extern "C" {
# Line 32 | Line 32 | extern "C" {
32  
33                                  /* special pointer values */
34   #define TM_XYZPRIM      (RGBPRIMP)NULL  /* indicate XYZ primaries (Note 1) */
35 < #define TM_NOCHROM      (BYTE *)NULL    /* indicate no chrominance */
36 < #define TM_NOCHROMP     (BYTE **)NULL   /* indicate no chrominances */
35 > #define TM_NOCHROM      (uby8 *)NULL    /* indicate no chrominance */
36 > #define TM_NOCHROMP     (uby8 **)NULL   /* indicate no chrominances */
37   #define TM_GETFILE      (FILE *)NULL    /* indicate file must be opened */
38  
39  
# Line 51 | Line 51 | extern "C" {
51  
52   /****    Conversion Constants and Table Sizes    ****/
53  
54 < #define TM_BRTSCALE     128             /* brightness scale factor (integer) */
54 > #define TM_BRTSCALE     256             /* brightness scale factor (integer) */
55  
56 < #define TM_NOBRT        (-1<<15)        /* bogus brightness value */
56 > #define TM_NOBRT        (~0x7fff)       /* bogus brightness value */
57   #define TM_NOLUM        (1e-17)         /* ridiculously small luminance */
58  
59 + #define TM_BRES         4096            /* luminance tone-map resolution */
60 +
61   #define TM_MAXPKG       8               /* maximum number of color formats */
62  
63  
# Line 64 | Line 66 | extern "C" {
66   #ifndef MEM_PTR
67   #define MEM_PTR         void *
68   #endif
69 + #ifndef HIST_TYP
70 + #define HIST_TYP        unsigned long
71 + #endif
72 + #define TMAP_TYP        unsigned short
73  
74   extern char     *tmErrorMessage[];      /* error messages */
75  
# Line 81 | Line 87 | typedef struct {
87          MEM_PTR         inpdat;         /* current input client data */
88          COLORMAT        cmat;           /* color conversion matrix */
89          TMbright        hbrmin, hbrmax; /* histogram brightness limits */      
90 <        int             *histo;         /* input histogram */
90 >        HIST_TYP        *histo;         /* input histogram */
91          TMbright        mbrmin, mbrmax; /* mapped brightness limits */
92 <        unsigned short  *lumap;         /* computed luminance map */
92 >        TMAP_TYP        *lumap;         /* computed luminance map */
93          MEM_PTR         pd[TM_MAXPKG];  /* pointers to private data */
94          int             lastError;      /* last error incurred */
95          const char      *lastFunc;      /* error-generating function name */
# Line 124 | Line 130 | tmCvLuminance(double lum);
130          Convert a single luminance value to an encoded brightness value.
131   */
132  
133 + extern int
134 + tmCvLums(TMbright *ls, float *scan, int len);
135 + /*
136 +        Convert luminance values to encoded brightness values using lookup.
137 +
138 +        ls      -       returned encoded luminance values.
139 +        scan    -       input scanline.
140 +        len     -       scanline length.
141 +
142 +        returns -       0 on success, TM_E_* on error.
143 + */
144 +
145   extern TMstruct *
146   tmInit(int flags, RGBPRIMP monpri, double gamval);
147   /*
# Line 203 | Line 221 | tmComputeMapping(TMstruct *tms, double gamval, double
221   */
222  
223   extern int
224 < tmMapPixels(TMstruct *tms, BYTE *ps, TMbright *ls, BYTE *cs, int len);
224 > tmMapPixels(TMstruct *tms, uby8 *ps, TMbright *ls, uby8 *cs, int len);
225   /*
226          Apply tone mapping function to pixel values.
227  
# Line 235 | Line 253 | tmDone(TMstruct *tms);
253   */
254  
255   extern int
256 < tmCvColors(TMstruct *tms, TMbright *ls, BYTE *cs, COLOR *scan, int len);
256 > tmCvGrays(TMstruct *tms, TMbright *ls, float *scan, int len);
257   /*
258 <        Convert RGB/XYZ float scanline to encoded luminance and chrominance.
258 >        Convert gray float scanline to encoded luminance.
259  
260          tms     -       tone mapping structure pointer.
261          ls      -       returned encoded luminance values.
244 –        cs      -       returned encoded chrominance values (Note 2).
262          scan    -       input scanline.
263          len     -       scanline length.
264  
# Line 249 | Line 266 | tmCvColors(TMstruct *tms, TMbright *ls, BYTE *cs, COLO
266   */
267  
268   extern int
269 < tmCvGrays(TMstruct *tms, TMbright *ls, float *scan, int len);
269 > tmCvColors(TMstruct *tms, TMbright *ls, uby8 *cs, COLOR *scan, int len);
270   /*
271 <        Convert gray float scanline to encoded luminance.
271 >        Convert RGB/XYZ float scanline to encoded luminance and chrominance.
272  
273          tms     -       tone mapping structure pointer.
274          ls      -       returned encoded luminance values.
275 +        cs      -       returned encoded chrominance values (Note 2).
276          scan    -       input scanline.
277          len     -       scanline length.
278  
# Line 262 | Line 280 | tmCvGrays(TMstruct *tms, TMbright *ls, float *scan, in
280   */
281  
282   extern int
283 < tmCvColrs(TMstruct *tms, TMbright *ls, BYTE *cs, COLR *scan, int len);
283 > tmCvColrs(TMstruct *tms, TMbright *ls, uby8 *cs, COLR *scan, int len);
284   /*
285          Convert RGBE/XYZE scanline to encoded luminance and chrominance.
286  
# Line 276 | Line 294 | tmCvColrs(TMstruct *tms, TMbright *ls, BYTE *cs, COLR
294   */
295  
296   extern int
297 < tmLoadPicture(TMstruct *tms, TMbright **lpp, BYTE **cpp, int *xp, int *yp,
297 > tmLoadPicture(TMstruct *tms, TMbright **lpp, uby8 **cpp, int *xp, int *yp,
298                  char *fname, FILE *fp);
299   /*
300          Load Radiance picture and convert to tone mapping representation.
# Line 295 | Line 313 | tmLoadPicture(TMstruct *tms, TMbright **lpp, BYTE **cp
313   */
314  
315   extern int
316 < tmMapPicture(BYTE **psp, int *xp, int *yp, int flags,
316 > tmMapPicture(uby8 **psp, int *xp, int *yp, int flags,
317                  RGBPRIMP monpri, double gamval, double Lddyn, double Ldmax,
318                  char *fname, FILE *fp);
319   /*
# Line 320 | Line 338 | tmMapPicture(BYTE **psp, int *xp, int *yp, int flags,
338   */
339  
340   extern int
341 < tmCvRGB48(TMstruct *tms, TMbright *ls, BYTE *cs, uint16 (*scan)[3],
341 > tmCvRGB48(TMstruct *tms, TMbright *ls, uby8 *cs, uint16 (*scan)[3],
342                  int len, double gv);
343   /*
344          Convert 48-bit RGB scanline to encoded luminance and chrominance.

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