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#ifndef lint |
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static const char RCSid[] = "$Id$"; |
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#endif |
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|
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/* |
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================================================================== |
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====================================================================== |
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Photon map file I/O |
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Roland Schregle (roland.schregle@{hslu.ch, gmail.com}) |
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(c) Fraunhofer Institute for Solar Energy Systems, |
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Lucerne University of Applied Sciences & Arts |
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================================================================== |
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(c) Lucerne University of Applied Sciences and Arts, |
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supported by the Swiss National Science Foundation (SNSF, #147053) |
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====================================================================== |
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$Id$ |
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*/ |
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void savePhotonMap (const PhotonMap *pmap, const char *fname, |
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PhotonMapType type, int argc, char **argv) |
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int argc, char **argv) |
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{ |
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unsigned long i, j; |
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const Photon* p; |
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FILE* file; |
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unsigned long i, j; |
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FILE *file; |
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|
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if (!pmap || !pmap -> heap || !pmap -> heapSize || |
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!validPmapType(type)) { |
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if (!pmap || !pmap -> numPhotons || !validPmapType(pmap -> type)) { |
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error(INTERNAL, "attempt to save empty or invalid photon map"); |
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return; |
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} |
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if (photonRepTime) { |
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sprintf(errmsg, "Saving %s (%ld photons)...\n", |
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fname, pmap -> heapSize); |
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if (pmap -> numPrimary) |
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sprintf(errmsg, "Saving %s (%ld photons, %d primaries)...\n", |
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fname, pmap -> numPhotons, pmap -> numPrimary); |
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else sprintf(errmsg, "Saving %s (%ld photons)...\n", fname, |
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pmap -> numPhotons); |
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|
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eputs(errmsg); |
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fflush(stderr); |
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} |
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printargs(argc, argv, file); |
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/* Include statistics in info text */ |
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fprintf(file, "%ld photons @ (%.2e, %.2e, %.2e) avg watts\n" |
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"Extent [%.3f, %.3f, %.3f] [%.3f, %.3f, %.3f]\n", |
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pmap -> heapSize, pmap -> photonFlux [0], |
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fprintf(file, "NumPhotons\t= %ld\n" |
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"AvgFlux\t\t= [%.2e, %.2e, %.2e]\n" |
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"Bbox\t\t= [%.3f, %.3f, %.3f] [%.3f, %.3f, %.3f]\n" |
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"CoG\t\t= [%.3f, %.3f, %.3f]\n" |
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"MaxDist^2\t= %.3f\n", |
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pmap -> numPhotons, pmap -> photonFlux [0], |
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pmap -> photonFlux [1], pmap -> photonFlux [2], |
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pmap -> minPos [0], pmap -> minPos [1], pmap -> minPos [2], |
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pmap -> maxPos [0], pmap -> maxPos [1], pmap -> maxPos [2]); |
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if (pmap -> primary) |
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fprintf(file, "%d primary rays\n", pmap -> primaryEnd + 1); |
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pmap -> maxPos [0], pmap -> maxPos [1], pmap -> maxPos [2], |
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pmap -> CoG [0], pmap -> CoG [1], pmap -> CoG [2], |
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pmap -> CoGdist); |
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|
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if (pmap -> primaries) |
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fprintf(file, "%d primary rays\n", pmap -> numPrimary); |
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/* Write format */ |
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fputformat((char*)pmapFormat [type], file); |
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fprintf(file, "VERSION=%d\n", PMAP_FILEVER); |
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fputformat((char*)pmapFormat [pmap -> type], file); |
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fprintf(file, "VERSION=%s\n", PMAP_FILEVER); |
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/* Empty line = end of header */ |
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putc('\n', file); |
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/* Write file format version */ |
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putint(PMAP_FILEVER, sizeof(PMAP_FILEVER), file); |
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putstr(PMAP_FILEVER, file); |
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/* Write number of photons */ |
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putint(pmap -> heapSize, sizeof(pmap -> heapSize), file); |
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putint(pmap -> numPhotons, sizeof(pmap -> numPhotons), file); |
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|
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/* Write average photon flux */ |
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for (j = 0; j < 3; j++) |
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/* Write avg distance to centre of gravity */ |
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putflt(pmap -> CoGdist, file); |
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for (i = 0, p = pmap -> heap; i < pmap -> heapSize; i++, p++) { |
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/* Write photon attributes */ |
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for (j = 0; j < 3; j++) |
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putflt(p -> pos [j], file); |
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|
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/* Bytewise dump otherwise we have portability probs */ |
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for (j = 0; j < 3; j++) |
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putint(p -> norm [j], 1, file); |
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|
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#ifdef PMAP_FLOAT_FLUX |
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for (j = 0; j < 3; j++) |
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putflt(p -> flux [j], file); |
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#else |
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for (j = 0; j < 4; j++) |
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putint(p -> flux [j], 1, file); |
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#endif |
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|
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putint(p -> primary, sizeof(p -> primary), file); |
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putint(p -> flags, 1, file); |
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|
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if (ferror(file)) { |
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sprintf(errmsg, "error writing photon map file %s", fname); |
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error(SYSTEM, errmsg); |
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} |
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} |
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/* Write out primary photon rays (or just zero count if none) */ |
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if (pmap -> primary) { |
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/* primaryEnd points to last primary ray in array, so increment for |
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* number of entries */ |
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putint(pmap -> primaryEnd + 1, sizeof(pmap -> primaryEnd), file); |
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if (pmap -> primaries) { |
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putint(pmap -> numPrimary, sizeof(pmap -> numPrimary), file); |
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for (i = 0; i <= pmap -> primaryEnd; i++) { |
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PhotonPrimary *prim = pmap -> primary + i; |
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putint(prim -> srcIdx, sizeof(prim -> srcIdx), file); |
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for (i = 0; i < pmap -> numPrimary; i++) { |
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PhotonPrimary *prim = pmap -> primaries + i; |
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putint(prim -> srcIdx, sizeof(prim -> srcIdx), file); |
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putint(prim -> dir, sizeof(prim -> dir), file); |
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#ifdef PMAP_PRIMARYPOS |
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for (j = 0; j < 3; j++) |
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putflt(prim -> dir [j], file); |
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for (j = 0; j < 3; j++) |
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putflt(prim -> org [j], file); |
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putflt(prim -> pos [j], file); |
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#endif |
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if (ferror(file)) |
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error(SYSTEM, "error writing primary photon rays"); |
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} |
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} |
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else putint(0, sizeof(pmap -> primaryEnd), file); |
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else putint(0, sizeof(pmap -> numPrimary), file); |
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|
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/* Save photon storage */ |
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#ifdef PMAP_OOC |
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if (OOC_SavePhotons(pmap, file)) { |
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#else |
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if (kdT_SavePhotons(pmap, file)) { |
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#endif |
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sprintf(errmsg, "error writing photon map file %s", fname); |
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error(SYSTEM, errmsg); |
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} |
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fclose(file); |
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} |
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PhotonMapType loadPhotonMap (PhotonMap *pmap, const char *fname) |
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{ |
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Photon* p; |
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PhotonMapType ptype = PMAP_TYPE_NONE; |
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char format [128]; |
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unsigned long i, j; |
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FILE *file; |
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PhotonMapType ptype = PMAP_TYPE_NONE; |
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char format [128]; |
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unsigned long i, j; |
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FILE *file; |
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if (!pmap) |
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return PMAP_TYPE_NONE; |
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/* Identify photon map type from format string */ |
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for (ptype = 0; |
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strcmp(pmapFormat [ptype], format) && ptype < NUM_PMAP_TYPES; |
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ptype < NUM_PMAP_TYPES && strcmp(pmapFormat [ptype], format); |
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ptype++); |
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if (!validPmapType(ptype)) { |
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initPhotonMap(pmap, ptype); |
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/* Get file format version and check for compatibility */ |
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if (getint(sizeof(PMAP_FILEVER), file) != PMAP_FILEVER) |
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if (strcmp(getstr(format, file), PMAP_FILEVER)) |
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error(USER, "incompatible photon map file format"); |
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/* Get number of photons */ |
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pmap -> heapSize = pmap -> heapEnd = |
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getint(sizeof(pmap -> heapSize), file); |
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pmap -> heap = (Photon *)malloc(pmap -> heapSize * sizeof(Photon)); |
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if (!pmap -> heap) |
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error(INTERNAL, "can't allocate photon heap from file"); |
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pmap -> numPhotons = getint(sizeof(pmap -> numPhotons), file); |
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/* Get average photon flux */ |
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for (j = 0; j < 3; j++) |
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/* Get avg distance to centre of gravity */ |
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pmap -> CoGdist = getflt(file); |
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/* Get photon attributes */ |
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for (i = 0, p = pmap -> heap; i < pmap -> heapSize; i++, p++) { |
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for (j = 0; j < 3; j++) |
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p -> pos [j] = getflt(file); |
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|
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/* Bytewise grab otherwise we have portability probs */ |
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for (j = 0; j < 3; j++) |
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p -> norm [j] = getint(1, file); |
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|
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#ifdef PMAP_FLOAT_FLUX |
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for (j = 0; j < 3; j++) |
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p -> flux [j] = getflt(file); |
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#else |
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for (j = 0; j < 4; j++) |
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p -> flux [j] = getint(1, file); |
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#endif |
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p -> primary = getint(sizeof(p -> primary), file); |
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p -> flags = getint(1, file); |
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|
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if (feof(file)) { |
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sprintf(errmsg, "error reading photon map file %s", fname); |
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error(SYSTEM, errmsg); |
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} |
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} |
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|
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/* Get primary photon rays */ |
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pmap -> primarySize = getint(sizeof(pmap -> primarySize), file); |
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pmap -> numPrimary = getint(sizeof(pmap -> numPrimary), file); |
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if (pmap -> primarySize) { |
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pmap -> primaryEnd = pmap -> primarySize - 1; |
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pmap -> primary = (PhotonPrimary*)malloc(pmap -> primarySize * |
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sizeof(PhotonPrimary)); |
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if (!pmap -> primary) |
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if (pmap -> numPrimary) { |
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pmap -> primaries = calloc(pmap -> numPrimary, sizeof(PhotonPrimary)); |
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if (!pmap -> primaries) |
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error(INTERNAL, "can't allocate primary photon rays"); |
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|
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for (i = 0; i < pmap -> primarySize; i++) { |
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PhotonPrimary *prim = pmap -> primary + i; |
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for (i = 0; i < pmap -> numPrimary; i++) { |
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PhotonPrimary *prim = pmap -> primaries + i; |
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|
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prim -> srcIdx = getint(sizeof(prim -> srcIdx), file); |
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|
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prim -> dir = getint(sizeof(prim -> dir), file); |
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#ifdef PMAP_PRIMARYPOS |
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for (j = 0; j < 3; j++) |
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prim -> dir [j] = getflt(file); |
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|
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for (j = 0; j < 3; j++) |
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prim -> org [j] = getflt(file); |
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|
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prim -> pos [j] = getflt(file); |
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#endif |
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if (feof(file)) |
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error(SYSTEM, "error reading primary photon rays"); |
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} |
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} |
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} |
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|
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/* Load photon storage */ |
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#ifdef PMAP_OOC |
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if (OOC_LoadPhotons(pmap, file)) { |
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#else |
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if (kdT_LoadPhotons(pmap, file)) { |
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#endif |
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sprintf(errmsg, "error reading photon map file %s", fname); |
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error(SYSTEM, errmsg); |
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} |
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|
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fclose(file); |
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|
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return ptype; |
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} |
