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#ifndef PMAPDATA_H |
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#define PMAPDATA_H |
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|
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< |
#include "ray.h" |
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#ifndef NIX |
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> |
#if defined(_WIN32) || defined(_WIN64) |
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#define NIX 0 |
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#else |
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#define NIX 1 |
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> |
#endif |
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> |
#endif |
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|
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> |
#if (defined(PMAP_OOC) && !NIX) |
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#error "OOC currently only supported on NIX -- tuff luck." |
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#endif |
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> |
|
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#ifdef PMAP_CBDM |
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/* Enable photon primary hitpoints and incident directions (see struct |
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* PhotonPrimary below). Note this will increase the size of photon |
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* primaries 9-fold (10-fold after alignment)!!! */ |
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#define PMAP_PRIMARYPOS |
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#define PMAP_PRIMARYDIR |
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#endif |
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|
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#include "ray.h" |
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#include "pmaptype.h" |
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#include "paths.h" |
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#include "lookup.h" |
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#include <stdint.h> |
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|
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– |
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/* Primary photon ray for light source contributions */ |
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typedef struct { |
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int16 srcIdx; /* Index of emitting light source */ |
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/* !!! REDUCED FROM 32 BITS !!! */ |
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#ifdef PMAP_PRIMARYDIR |
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int32 dir; /* Encoded ray direction */ |
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#ifdef PMAP_PRIMARYPOS |
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#endif |
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#ifdef PMAP_PRIMARYPOS |
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float pos [3]; /* Hit point */ |
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< |
#endif |
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#endif |
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} PhotonPrimary; |
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|
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#define photonSrcIdx(pm, p) ((pm)->primaries[(p)->primary].srcIdx) |
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/* Photon primary ray index type and limit */ |
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typedef uint32 PhotonPrimaryIdx; |
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typedef uint32 PhotonPrimaryIdx; |
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#define PMAP_MAXPRIMARY UINT32_MAX |
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|
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/* Macros for photon's generating subprocess field */ |
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#ifdef PMAP_OOC |
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> |
#ifdef PMAP_OOC |
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#define PMAP_PROCBITS 7 |
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< |
#else |
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< |
#define PMAP_PROCBITS 5 |
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> |
#else |
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> |
#define PMAP_PROCBITS 5 |
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#endif |
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#define PMAP_MAXPROC (1 << PMAP_PROCBITS) |
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#define PMAP_GETRAYPROC(r) ((r) -> crtype >> 8) |
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}; |
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#ifdef PMAP_FLOAT_FLUX |
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< |
COLOR flux; |
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> |
COLOR flux; |
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#else |
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< |
COLR flux; |
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> |
COLR flux; |
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#endif |
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PhotonPrimaryIdx primary; /* Index to primary ray */ |
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} Photon; |
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|
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/* Define search queue and underlying data struct types */ |
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#ifdef PMAP_OOC |
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+ |
#include "pmapooc.h" |
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#else |
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#include "pmapkdt.h" |
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#endif |
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/* Define PMAP_FLOAT_FLUX to store photon flux as floats instead of |
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#define getPhotonFlux(p,f) colr_color(f, (p) -> flux) |
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#endif |
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|
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|
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/* Bias compensation history node */ |
| 141 |
< |
typedef struct { |
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> |
typedef struct { |
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COLOR irrad; |
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float weight; |
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} PhotonBiasCompNode; |
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|
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/* Forward declaration */ |
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struct PhotonMap; |
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+ |
|
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|
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/* Mean size of heapfile write buffer, in number of photons */ |
| 152 |
+ |
#define PMAP_HEAPBUFSIZE 1e6 |
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|
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+ |
/* Mean idle time between heap locking attempts, in usec */ |
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+ |
#define PMAP_HEAPBUFSLEEP 2e6 |
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|
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< |
/* Define search queue and underlying data struct types */ |
| 158 |
< |
#ifdef PMAP_OOC |
| 159 |
< |
#include "pmapooc.h" |
| 128 |
< |
#else |
| 129 |
< |
#include "pmapkdt.h" |
| 130 |
< |
#endif |
| 157 |
> |
/* Temporary filename for photon heaps */ |
| 158 |
> |
#define PMAP_TMPFNAME TEMPLATE |
| 159 |
> |
#define PMAP_TMPFNLEN (TEMPLEN + 1) |
| 160 |
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|
| 161 |
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|
| 162 |
|
typedef struct PhotonMap { |
| 169 |
|
* ================================================================ */ |
| 170 |
|
FILE *heap; /* Unsorted photon heap prior to |
| 171 |
|
construction of store */ |
| 172 |
+ |
char heapFname [sizeof(PMAP_TMPFNAME)]; |
| 173 |
|
Photon *heapBuf; /* Write buffer for above */ |
| 174 |
|
unsigned long heapBufLen, /* Current & max size of heapBuf */ |
| 175 |
|
heapBufSize; |
| 176 |
< |
PhotonStorage store; /* Photon storage in spacee |
| 177 |
< |
subdividing data struct */ |
| 176 |
> |
PhotonStorage store; /* Photon storage in space |
| 177 |
> |
subdividing data struct */ |
| 178 |
|
|
| 179 |
|
/* ================================================================ |
| 180 |
|
* PHOTON DISTRIBUTION STUFF |
| 211 |
|
|
| 212 |
|
/* ================================================================ |
| 213 |
|
* BIAS COMPENSATION STUFF |
| 214 |
< |
* ================================================================ */ |
| 214 |
> |
* ================================================================ */ |
| 215 |
|
PhotonBiasCompNode *biasCompHist; /* Bias compensation history */ |
| 216 |
|
|
| 217 |
|
|
| 218 |
|
/* ================================================================ |
| 219 |
|
* STATISTIX |
| 220 |
< |
* ================================================================ */ |
| 220 |
> |
* ================================================================ */ |
| 221 |
|
unsigned long totalGathered, /* Total photons gathered */ |
| 222 |
|
numDensity, /* Num density estimates */ |
| 223 |
|
numLookups, /* Counters for short photon lookups */ |
| 265 |
|
#define isContribPmap(p) ((p) -> type == PMAP_TYPE_CONTRIB) |
| 266 |
|
#define isVolumePmap(p) ((p) -> type == PMAP_TYPE_VOLUME) |
| 267 |
|
|
| 268 |
< |
/* Mean size of heapfile write buffer, in number of photons */ |
| 269 |
< |
#define PMAP_HEAPBUFSIZE 1e6 |
| 270 |
< |
|
| 241 |
< |
/* Mean idle time between heap locking attempts, in usec */ |
| 242 |
< |
#define PMAP_HEAPBUFSLEEP 2e6 |
| 243 |
< |
|
| 244 |
< |
/* Shared memory file for parallelised photon distribution */ |
| 245 |
< |
#if 0 |
| 246 |
< |
#define PMAP_SHMFNAME "/mkpmap-%d" |
| 247 |
< |
#else |
| 248 |
< |
#define PMAP_SHMFNAME "mkpmapXXXXXX" |
| 249 |
< |
#endif |
| 268 |
> |
#ifdef __cplusplus |
| 269 |
> |
extern "C" { |
| 270 |
> |
#endif |
| 271 |
|
|
| 251 |
– |
|
| 272 |
|
void initPhotonMap (PhotonMap *pmap, PhotonMapType t); |
| 273 |
|
/* Initialise empty photon map of specified type */ |
| 274 |
|
|
| 315 |
|
are placed search queue starting with the furthest photon at pmap -> |
| 316 |
|
squeue.node, and pmap -> squeue.tail being the number actually found. */ |
| 317 |
|
|
| 318 |
< |
void find1Photon (PhotonMap *pmap, const RAY *ray, Photon *photon); |
| 319 |
< |
/* Finds single closest photon to ray -> rop with similar normal. |
| 320 |
< |
Returns NULL if none found. */ |
| 318 |
> |
Photon *find1Photon (PhotonMap *pmap, const RAY *ray, Photon *photon); |
| 319 |
> |
/* Find single closest photon to ray -> rop with similar normal. |
| 320 |
> |
Return NULL if none found, else the supplied Photon* buffer, |
| 321 |
> |
indicating that it contains a valid photon. */ |
| 322 |
|
|
| 323 |
|
void getPhoton (PhotonMap *pmap, PhotonIdx idx, Photon *photon); |
| 324 |
|
/* Retrieve photon referenced by idx from pmap -> store */ |
| 332 |
|
|
| 333 |
|
void deletePhotons (PhotonMap*); |
| 334 |
|
/* Free dem mammaries... */ |
| 335 |
+ |
|
| 336 |
+ |
#ifdef __cplusplus |
| 337 |
+ |
} |
| 338 |
+ |
#endif |
| 339 |
|
|
| 340 |
|
#endif |
