[37] | 1 | /* |
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| 2 | |
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| 3 | Brian Curless |
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| 4 | |
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| 5 | Computer Graphics Laboratory |
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| 6 | Stanford University |
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| 7 | |
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| 8 | --------------------------------------------------------------------- |
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| 9 | |
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| 10 | Copyright (1997) The Board of Trustees of the Leland Stanford Junior |
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| 11 | University. Except for commercial resale, lease, license or other |
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| 12 | commercial transactions, permission is hereby given to use, copy, |
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| 13 | modify this software for academic purposes only. No part of this |
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| 14 | software or any derivatives thereof may be used in the production of |
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| 15 | computer models for resale or for use in a commercial |
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| 16 | product. STANFORD MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND |
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| 17 | CONCERNING THIS SOFTWARE. No support is implied or provided. |
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| 18 | |
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| 19 | */ |
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| 20 | |
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| 21 | |
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| 22 | #include <limits.h> |
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| 23 | #include <stdio.h> |
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| 24 | #include <unistd.h> |
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| 25 | #include <assert.h> |
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| 26 | |
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| 27 | #ifdef linux |
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| 28 | #include <endian.h> |
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| 29 | #endif |
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| 30 | |
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| 31 | |
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| 32 | #include "OccGridRLE.h" |
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| 33 | |
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| 34 | // Lucas: |
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| 35 | // Should we recompact (copy twice) the RLE pointers after doing |
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| 36 | // a transpose? It would have better memory coherence, but it also |
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| 37 | // costs a lot... In my tests, it was faster to avoid recompacting. |
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| 38 | #define OCCGRIDRLE_RECOMPACT 0 |
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| 39 | |
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| 40 | OccScanlineRLE::OccScanlineRLE() |
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| 41 | { |
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| 42 | this->lengths = this->allocatedLengths = NULL; |
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| 43 | this->elements = this->allocatedElements = NULL; |
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| 44 | } |
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| 45 | |
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| 46 | |
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| 47 | OccScanlineRLE::OccScanlineRLE(int dim) |
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| 48 | { |
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| 49 | this->allocatedLengths = new RunLength[dim]; |
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| 50 | this->allocatedElements = new OccElement[dim]; |
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| 51 | |
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| 52 | this->lengths = this->allocatedLengths; |
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| 53 | this->elements = this->allocatedElements; |
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| 54 | } |
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| 55 | |
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| 56 | |
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| 57 | OccScanlineRLE::~OccScanlineRLE() |
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| 58 | { |
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| 59 | if (this->allocatedLengths != NULL) { |
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| 60 | delete [] this->lengths; |
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| 61 | } |
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| 62 | |
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| 63 | if (this->allocatedElements != NULL) { |
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| 64 | delete [] this->elements; |
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| 65 | } |
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| 66 | } |
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| 67 | |
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| 68 | |
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| 69 | |
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| 70 | OccGridRLE::OccGridRLE() |
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| 71 | { |
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| 72 | this->xdim = this->ydim = this->zdim = 0; |
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| 73 | this->axis = Z_AXIS; |
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| 74 | this->flip = FALSE; |
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| 75 | this->origin[0] = 0; |
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| 76 | this->origin[1] = 0; |
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| 77 | this->origin[2] = 0; |
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| 78 | this->resolution = 1.0; |
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| 79 | |
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| 80 | this->rleScanline = new OccScanlineRLE; |
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| 81 | |
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| 82 | this->defaultElement = new OccElement; |
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| 83 | //this->defaultElement->value = 0; |
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| 84 | this->defaultElement->value = USHRT_MAX; |
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| 85 | this->defaultElement->totalWeight = 0; |
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| 86 | |
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| 87 | this->emptyNoWeight.value = 0; |
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| 88 | this->emptyNoWeight.totalWeight = 0; |
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| 89 | |
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| 90 | this->fullNoWeight.value = USHRT_MAX; |
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| 91 | this->fullNoWeight.totalWeight = 0; |
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| 92 | |
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| 93 | this->lengthChunker = NULL; |
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| 94 | this->elementChunker = NULL; |
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| 95 | this->sliceOrigins = NULL; |
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| 96 | this->lengthAddr = NULL; |
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| 97 | this->elementAddr = NULL; |
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| 98 | this->slice = NULL; |
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| 99 | this->scanline = NULL; |
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| 100 | this->transpXZslice = NULL; |
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| 101 | |
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| 102 | |
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| 103 | } |
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| 104 | |
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| 105 | |
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| 106 | OccGridRLE::OccGridRLE(int xd, int yd, int zd, int num) |
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| 107 | { |
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| 108 | this->xdim = this->ydim = this->zdim = 0; |
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| 109 | this->axis = Z_AXIS; |
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| 110 | this->flip = FALSE; |
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| 111 | this->origin[0] = 0; |
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| 112 | this->origin[1] = 0; |
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| 113 | this->origin[2] = 0; |
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| 114 | this->resolution = 1.0; |
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| 115 | |
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| 116 | this->rleScanline = new OccScanlineRLE; |
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| 117 | |
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| 118 | this->defaultElement = new OccElement; |
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| 119 | this->defaultElement->value = 0; |
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| 120 | this->defaultElement->totalWeight = 0; |
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| 121 | |
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| 122 | this->emptyNoWeight.value = 0; |
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| 123 | this->emptyNoWeight.totalWeight = 0; |
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| 124 | |
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| 125 | this->fullNoWeight.value = USHRT_MAX; |
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| 126 | this->fullNoWeight.totalWeight = 0; |
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| 127 | |
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| 128 | this->lengthChunker = NULL; |
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| 129 | this->elementChunker = NULL; |
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| 130 | this->sliceOrigins = NULL; |
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| 131 | this->lengthAddr = NULL; |
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| 132 | this->elementAddr = NULL; |
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| 133 | this->slice = NULL; |
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| 134 | this->scanline = NULL; |
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| 135 | this->transpXZslice = NULL; |
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| 136 | |
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| 137 | this->init(xd, yd, zd, num); |
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| 138 | } |
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| 139 | |
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| 140 | |
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| 141 | void |
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| 142 | OccGridRLE::init(int xd, int yd, int zd, int num) |
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| 143 | { |
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| 144 | int size1, size2, size3, sliceSize; |
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| 145 | |
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| 146 | this->xdim = xd; |
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| 147 | this->ydim = yd; |
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| 148 | this->zdim = zd; |
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| 149 | |
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| 150 | int maxdim = MAX(this->xdim, MAX(this->ydim, this->zdim)); |
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| 151 | this->sliceOrigins = new vec3f[maxdim]; |
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| 152 | this->scanline = new OccElement[maxdim]; |
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| 153 | |
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| 154 | this->axis = Z_AXIS; |
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| 155 | this->flip = FALSE; |
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| 156 | this->origin[0] = 0; |
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| 157 | this->origin[1] = 0; |
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| 158 | this->origin[2] = 0; |
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| 159 | this->resolution = 1.0; |
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| 160 | |
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| 161 | size1 = xd*yd; |
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| 162 | size2 = xd*zd; |
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| 163 | size3 = yd*zd; |
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| 164 | |
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| 165 | sliceSize = MAX(MAX(size1, size2), size3); |
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| 166 | this->slice = new OccElement[sliceSize]; |
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| 167 | |
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| 168 | this->rleScanline = new OccScanlineRLE; |
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| 169 | |
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| 170 | this->defaultElement = new OccElement; |
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| 171 | this->defaultElement->value = USHRT_MAX; |
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| 172 | this->defaultElement->totalWeight = 0; |
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| 173 | |
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| 174 | this->emptyNoWeight.value = 0; |
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| 175 | this->emptyNoWeight.totalWeight = 0; |
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| 176 | |
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| 177 | this->fullNoWeight.value = USHRT_MAX; |
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| 178 | this->fullNoWeight.totalWeight = 0; |
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| 179 | |
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| 180 | this->lengthAddr = new RunLength*[sliceSize]; |
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| 181 | this->elementAddr = new OccElement*[sliceSize]; |
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| 182 | |
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| 183 | if (this->lengthChunker == NULL) |
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| 184 | this->lengthChunker = new ChunkAllocator(num); |
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| 185 | else if (this->lengthChunker->chunkSize != num) { |
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| 186 | delete this->lengthChunker; |
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| 187 | this->lengthChunker = new ChunkAllocator(num); |
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| 188 | } else { |
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| 189 | this->lengthChunker->reset(); |
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| 190 | } |
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| 191 | |
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| 192 | if (this->elementChunker == NULL) |
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| 193 | this->elementChunker = new ChunkAllocator(num); |
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| 194 | else if (this->elementChunker->chunkSize != num) { |
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| 195 | delete this->elementChunker; |
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| 196 | this->elementChunker = new ChunkAllocator(num); |
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| 197 | } else { |
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| 198 | this->elementChunker->reset(); |
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| 199 | } |
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| 200 | |
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| 201 | |
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| 202 | // Compute the maximum bytes needed for a scanline |
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| 203 | // Fix this!! |
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| 204 | if (sizeof(OccElement) >= 2*sizeof(ushort)) { |
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| 205 | this->transpXZbytesPerScanline = |
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| 206 | this->xdim*sizeof(OccElement)+3*sizeof(ushort); |
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| 207 | } |
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| 208 | else { |
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| 209 | this->transpXZbytesPerScanline = |
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| 210 | this->xdim/2* |
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| 211 | (sizeof(OccElement)+2*sizeof(ushort)) + sizeof(ushort); |
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| 212 | } |
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| 213 | |
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| 214 | this->transpXZslice = new uchar[this->zdim*this->transpXZbytesPerScanline]; |
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| 215 | |
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| 216 | this->clear(); |
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| 217 | } |
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| 218 | |
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| 219 | |
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| 220 | OccGridRLE::~OccGridRLE() |
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| 221 | { |
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| 222 | this->freeSpace(); |
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| 223 | } |
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| 224 | |
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| 225 | |
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| 226 | void |
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| 227 | OccGridRLE::freeSpace() |
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| 228 | { |
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| 229 | if (this->sliceOrigins != NULL) { |
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| 230 | delete [] this->sliceOrigins; |
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| 231 | } |
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| 232 | if (this->lengthAddr != NULL) { |
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| 233 | delete [] this->lengthAddr; |
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| 234 | } |
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| 235 | if (this->elementAddr != NULL) { |
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| 236 | delete [] this->elementAddr; |
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| 237 | } |
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| 238 | if (this->slice != NULL) { |
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| 239 | delete [] this->slice; |
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| 240 | } |
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| 241 | if (this->scanline != NULL) { |
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| 242 | delete [] this->scanline; |
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| 243 | } |
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| 244 | if (this->rleScanline != NULL) { |
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| 245 | delete this->rleScanline; |
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| 246 | } |
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| 247 | if (this->defaultElement != NULL) { |
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| 248 | delete this->defaultElement; |
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| 249 | } |
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| 250 | if (this->elementChunker != NULL) { |
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| 251 | delete this->elementChunker; |
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| 252 | } |
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| 253 | if (this->lengthChunker != NULL) { |
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| 254 | delete this->lengthChunker; |
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| 255 | } |
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| 256 | if (this->transpXZslice != NULL) { |
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| 257 | delete [] this->transpXZslice; |
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| 258 | } |
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| 259 | } |
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| 260 | |
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| 261 | |
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| 262 | void |
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| 263 | OccGridRLE::copyParams(OccGridRLE *other) |
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| 264 | { |
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| 265 | this->xdim = other->xdim; |
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| 266 | this->ydim = other->ydim; |
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| 267 | this->zdim = other->zdim; |
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| 268 | this->axis = other->axis; |
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| 269 | this->flip = other->flip; |
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| 270 | this->origin[0] = other->origin[0]; |
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| 271 | this->origin[1] = other->origin[1]; |
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| 272 | this->origin[2] = other->origin[2]; |
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| 273 | } |
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| 274 | |
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| 275 | |
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| 276 | void |
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| 277 | OccGridRLE::allocNewRun(int y, int z) |
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| 278 | { |
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| 279 | // Make room for contiguous runs and point the length and data |
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| 280 | // pointers to the next place that length and data will be put |
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| 281 | |
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| 282 | this->elementChunker->newChunkIfNeeded(sizeof(OccElement)*(this->xdim+1)); |
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| 283 | this->elementAddr[y + z*this->ydim] = |
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| 284 | (OccElement *)this->elementChunker->currentAddr; |
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| 285 | |
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| 286 | this->lengthChunker->newChunkIfNeeded(sizeof(RunLength)*(this->xdim+1)); |
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| 287 | this->lengthAddr[y + z*this->ydim] = |
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| 288 | (RunLength *)this->lengthChunker->currentAddr; |
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| 289 | |
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| 290 | setScanline(y, z); |
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| 291 | } |
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| 292 | |
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| 293 | |
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| 294 | void |
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| 295 | OccGridRLE::setScanline(int y, int z) |
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| 296 | { |
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| 297 | currentLength = this->lengthAddr[y + z*this->ydim]; |
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| 298 | currentElem = this->elementAddr[y + z*this->ydim]; |
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| 299 | } |
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| 300 | |
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| 301 | |
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| 302 | #if defined(linux) && BYTE_ORDER == LITTLE_ENDIAN |
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| 303 | |
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| 304 | static inline void |
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| 305 | swap_4(const void *p, size_t size) |
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| 306 | { |
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| 307 | char t; |
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| 308 | for (char *pc = (char *) p; pc < (char *) p + size; pc += 4) |
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| 309 | { |
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| 310 | t = pc[0]; pc[0] = pc[3]; pc[3] = t; |
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| 311 | t = pc[1]; pc[1] = pc[2]; pc[2] = t; |
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| 312 | } |
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| 313 | } |
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| 314 | |
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| 315 | static inline void |
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| 316 | swap_2(const void *p, size_t size) |
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| 317 | { |
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| 318 | char t; |
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| 319 | for (char *pc = (char *) p; pc < (char *) p + size; pc += 2) |
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| 320 | { |
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| 321 | t = pc[0]; pc[0] = pc[1]; pc[1] = t; |
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| 322 | } |
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| 323 | } |
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| 324 | |
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| 325 | static inline void |
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| 326 | write_be_int(const void *p, size_t size, size_t nitems, FILE *fp) |
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| 327 | { |
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| 328 | swap_4(p, size * nitems); |
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| 329 | fwrite(p, size, nitems, fp); |
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| 330 | swap_4(p, size * nitems); |
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| 331 | } |
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| 332 | |
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| 333 | static inline void |
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| 334 | write_be_float(const void *p, size_t size, size_t nitems, FILE *fp) |
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| 335 | { |
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| 336 | swap_4(p, size * nitems); |
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| 337 | fwrite(p, size, nitems, fp); |
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| 338 | swap_4(p, size * nitems); |
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| 339 | } |
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| 340 | |
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| 341 | static inline void |
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| 342 | write_be_ushort(const void *p, size_t size, size_t nitems, FILE *fp) |
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| 343 | { |
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| 344 | swap_2(p, size * nitems); |
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| 345 | fwrite(p, size, nitems, fp); |
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| 346 | swap_2(p, size * nitems); |
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| 347 | } |
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| 348 | |
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| 349 | static inline void |
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| 350 | read_be_int(void *p, size_t size, size_t nitems, FILE *fp) |
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| 351 | { |
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| 352 | fread(p, size, nitems, fp); |
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| 353 | swap_4(p, size * nitems); |
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| 354 | } |
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| 355 | |
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| 356 | static inline void |
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| 357 | read_be_float(void *p, size_t size, size_t nitems, FILE *fp) |
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| 358 | { |
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| 359 | fread(p, size, nitems, fp); |
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| 360 | swap_4(p, size * nitems); |
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| 361 | } |
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| 362 | |
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| 363 | static inline void |
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| 364 | read_be_ushort(void *p, size_t size, size_t nitems, FILE *fp) |
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| 365 | { |
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| 366 | fread(p, size, nitems, fp); |
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| 367 | swap_2(p, size * nitems); |
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| 368 | } |
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| 369 | |
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| 370 | #else |
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| 371 | |
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| 372 | static inline void |
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| 373 | write_be_int(const void *p, size_t size, size_t nitems, FILE *fp) |
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| 374 | { |
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| 375 | fwrite(p, size, nitems, fp); |
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| 376 | } |
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| 377 | |
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| 378 | static inline void |
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| 379 | write_be_float(const void *p, size_t size, size_t nitems, FILE *fp) |
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| 380 | { |
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| 381 | fwrite(p, size, nitems, fp); |
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| 382 | } |
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| 383 | |
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| 384 | static inline void |
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| 385 | write_be_ushort(const void *p, size_t size, size_t nitems, FILE *fp) |
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| 386 | { |
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| 387 | fwrite(p, size, nitems, fp); |
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| 388 | } |
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| 389 | |
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| 390 | static inline void |
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| 391 | read_be_int(void *p, size_t size, size_t nitems, FILE *fp) |
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| 392 | { |
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| 393 | fread(p, size, nitems, fp); |
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| 394 | } |
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| 395 | |
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| 396 | static inline void |
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| 397 | read_be_float(void *p, size_t size, size_t nitems, FILE *fp) |
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| 398 | { |
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| 399 | fread(p, size, nitems, fp); |
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| 400 | } |
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| 401 | |
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| 402 | static inline void |
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| 403 | read_be_ushort(void *p, size_t size, size_t nitems, FILE *fp) |
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| 404 | { |
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| 405 | fread(p, size, nitems, fp); |
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| 406 | } |
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| 407 | |
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| 408 | #endif |
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| 409 | |
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| 410 | int |
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| 411 | OccGridRLE::write(const char *filename) |
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| 412 | { |
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| 413 | FILE *fp = fopen(filename, "wb"); |
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| 414 | |
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| 415 | if (fp == NULL) |
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| 416 | return FALSE; |
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| 417 | |
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| 418 | write_be_int(&this->xdim, sizeof(int), 1, fp); |
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| 419 | write_be_int(&this->ydim, sizeof(int), 1, fp); |
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| 420 | write_be_int(&this->zdim, sizeof(int), 1, fp); |
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| 421 | write_be_int(&this->axis, sizeof(int), 1, fp); |
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| 422 | write_be_int(&this->flip, sizeof(int), 1, fp); |
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| 423 | write_be_float(&this->origin, sizeof(float), 3, fp); |
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| 424 | write_be_float(&this->resolution, sizeof(float), 1, fp); |
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| 425 | |
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| 426 | int yy, zz, numRuns, numElems; |
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| 427 | |
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| 428 | // First count bytes |
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| 429 | int lengthByteCount = 0; |
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| 430 | int elementByteCount = 0; |
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| 431 | for (zz = 0; zz < this->zdim; zz++) { |
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| 432 | for (yy = 0; yy < this->ydim; yy++) { |
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| 433 | runStats(yy, zz, &numRuns, &numElems); |
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| 434 | // Don't forget the END_OF_RUN |
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| 435 | lengthByteCount = lengthByteCount + |
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| 436 | (numRuns + 1)*sizeof(RunLength); |
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| 437 | elementByteCount = elementByteCount + |
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| 438 | (numElems)*sizeof(OccElement); |
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| 439 | } |
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| 440 | } |
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| 441 | |
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| 442 | write_be_int(&lengthByteCount, sizeof(int), 1, fp); |
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| 443 | write_be_int(&elementByteCount, sizeof(int), 1, fp); |
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| 444 | |
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| 445 | int i; |
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| 446 | RunLength length; |
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| 447 | int runType; |
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| 448 | OccElement *element; |
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| 449 | |
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| 450 | for (zz = 0; zz < this->zdim; zz++) { |
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| 451 | for (yy = 0; yy < this->ydim; yy++) { |
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| 452 | setScanline(yy, zz); |
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| 453 | while (TRUE) { |
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| 454 | length = getNextLength(); |
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| 455 | write_be_ushort(&length, sizeof(RunLength), 1, fp); |
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| 456 | |
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| 457 | runType = getRunType(&length); |
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| 458 | |
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| 459 | if (runType == OccGridRLE::END_OF_RUN) |
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| 460 | break; |
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| 461 | |
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| 462 | if (runType == OccGridRLE::CONSTANT_DATA) { |
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| 463 | element = getNextElement(); |
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| 464 | write_be_ushort(element, sizeof(OccElement), 1, fp); |
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| 465 | } |
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| 466 | else { |
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| 467 | for (i=0; i<length; i++) { |
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| 468 | element = getNextElement(); |
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| 469 | write_be_ushort(element, sizeof(OccElement), 1, fp); |
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| 470 | } |
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| 471 | } |
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| 472 | } |
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| 473 | } |
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| 474 | } |
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| 475 | |
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| 476 | fclose(fp); |
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| 477 | |
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| 478 | return TRUE; |
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| 479 | } |
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| 480 | |
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| 481 | |
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| 482 | int |
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| 483 | OccGridRLE::read(const char *filename) |
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| 484 | { |
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| 485 | int size1, size2, size3, xd, yd, zd, sliceSize; |
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| 486 | |
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| 487 | FILE *fp = fopen(filename, "rb"); |
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| 488 | |
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| 489 | if (fp == NULL) |
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| 490 | return FALSE; |
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| 491 | |
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| 492 | read_be_int(&xd, sizeof(int), 1, fp); |
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| 493 | read_be_int(&yd, sizeof(int), 1, fp); |
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| 494 | read_be_int(&zd, sizeof(int), 1, fp); |
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| 495 | |
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| 496 | if (xd != this->xdim || yd != this->ydim || zd != this->zdim) { |
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| 497 | size1 = xd*yd; |
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| 498 | size2 = xd*zd; |
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| 499 | size3 = yd*zd; |
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| 500 | |
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| 501 | sliceSize = MAX(MAX(size1, size2), size3); |
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| 502 | |
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| 503 | if (this->slice != NULL) |
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| 504 | delete [] this->slice; |
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| 505 | this->slice = new OccElement[sliceSize]; |
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| 506 | |
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| 507 | if (this->lengthAddr != NULL) |
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| 508 | delete [] this->lengthAddr; |
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| 509 | this->lengthAddr = new RunLength*[sliceSize]; |
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| 510 | |
---|
| 511 | if (this->elementAddr != NULL) |
---|
| 512 | delete [] this->elementAddr; |
---|
| 513 | this->elementAddr = new OccElement*[sliceSize]; |
---|
| 514 | |
---|
| 515 | int maxdim = MAX(xd, MAX(yd, zd)); |
---|
| 516 | |
---|
| 517 | if (this->sliceOrigins != NULL) |
---|
| 518 | delete [] this->sliceOrigins; |
---|
| 519 | this->sliceOrigins = new vec3f[maxdim]; |
---|
| 520 | |
---|
| 521 | if (this->scanline != NULL) |
---|
| 522 | delete [] this->scanline; |
---|
| 523 | this->scanline = new OccElement[maxdim]; |
---|
| 524 | |
---|
| 525 | this->xdim = xd; |
---|
| 526 | this->ydim = yd; |
---|
| 527 | this->zdim = zd; |
---|
| 528 | |
---|
| 529 | if (sizeof(OccElement) > 2*sizeof(ushort)) { |
---|
| 530 | this->transpXZbytesPerScanline = |
---|
| 531 | this->xdim*sizeof(OccElement)+3*sizeof(ushort); |
---|
| 532 | } |
---|
| 533 | else { |
---|
| 534 | this->transpXZbytesPerScanline = |
---|
| 535 | this->xdim/2* |
---|
| 536 | (sizeof(OccElement)+2*sizeof(ushort)) + sizeof(ushort); |
---|
| 537 | } |
---|
| 538 | |
---|
| 539 | if (this->transpXZslice != NULL) |
---|
| 540 | delete [] this->transpXZslice; |
---|
| 541 | this->transpXZslice = new uchar |
---|
| 542 | [this->zdim*this->transpXZbytesPerScanline]; |
---|
| 543 | } |
---|
| 544 | |
---|
| 545 | read_be_int(&this->axis, sizeof(int), 1, fp); |
---|
| 546 | read_be_int(&this->flip, sizeof(int), 1, fp); |
---|
| 547 | read_be_float(&this->origin, sizeof(float), 3, fp); |
---|
| 548 | read_be_float(&this->resolution, sizeof(float), 1, fp); |
---|
| 549 | |
---|
| 550 | int lengthByteCount, elementByteCount; |
---|
| 551 | read_be_int(&lengthByteCount, sizeof(int), 1, fp); |
---|
| 552 | read_be_int(&elementByteCount, sizeof(int), 1, fp); |
---|
| 553 | |
---|
| 554 | reset(); |
---|
| 555 | |
---|
| 556 | int i, yy, zz; |
---|
| 557 | RunLength length; |
---|
| 558 | int runType; |
---|
| 559 | OccElement element; |
---|
| 560 | |
---|
| 561 | for (zz = 0; zz < this->zdim; zz++) { |
---|
| 562 | for (yy = 0; yy < this->ydim; yy++) { |
---|
| 563 | allocNewRun(yy, zz); |
---|
| 564 | while (TRUE) { |
---|
| 565 | read_be_ushort(&length, sizeof(RunLength), 1, fp); |
---|
| 566 | putNextLength(length); |
---|
| 567 | |
---|
| 568 | runType = getRunType(&length); |
---|
| 569 | |
---|
| 570 | if (runType == OccGridRLE::END_OF_RUN) |
---|
| 571 | break; |
---|
| 572 | |
---|
| 573 | if (runType == OccGridRLE::CONSTANT_DATA) { |
---|
| 574 | read_be_ushort(&element, sizeof(OccElement), 1, fp); |
---|
| 575 | putNextElement(&element); |
---|
| 576 | } |
---|
| 577 | else { |
---|
| 578 | for (i=0; i<length; i++) { |
---|
| 579 | read_be_ushort(&element, sizeof(OccElement), 1, fp); |
---|
| 580 | putNextElement(&element); |
---|
| 581 | } |
---|
| 582 | } |
---|
| 583 | } |
---|
| 584 | } |
---|
| 585 | } |
---|
| 586 | |
---|
| 587 | fclose(fp); |
---|
| 588 | |
---|
| 589 | return TRUE; |
---|
| 590 | } |
---|
| 591 | |
---|
| 592 | |
---|
| 593 | int |
---|
| 594 | OccGridRLE::writeDen(const char *) |
---|
| 595 | { |
---|
| 596 | |
---|
| 597 | /* |
---|
| 598 | orig_min[0] = extr_min[0] = map_min[0] = 0; |
---|
| 599 | orig_min[1] = extr_min[1] = map_min[1] = 0; |
---|
| 600 | orig_min[2] = extr_min[2] = map_min[2] = 0; |
---|
| 601 | |
---|
| 602 | orig_max[0] = extr_max[0] = map_max[0] = this->xdim - 1; |
---|
| 603 | orig_max[1] = extr_max[1] = map_max[1] = this->ydim - 1; |
---|
| 604 | orig_max[2] = extr_max[2] = map_max[2] = this->zdim - 1; |
---|
| 605 | |
---|
| 606 | orig_len[0] = extr_len[0] = map_len[0] = this->xdim; |
---|
| 607 | orig_len[1] = extr_len[1] = map_len[1] = this->ydim; |
---|
| 608 | orig_len[2] = extr_len[2] = map_len[2] = this->zdim; |
---|
| 609 | |
---|
| 610 | map_warps = 0; |
---|
| 611 | |
---|
| 612 | map_length = (long)map_len[X] * (long)map_len[Y] * (long)map_len[Z]; |
---|
| 613 | |
---|
| 614 | map_address = (uchar *)(this->elems); |
---|
| 615 | |
---|
| 616 | Store_Indexed_DEN_File(filename, sizeof(OccElement)); |
---|
| 617 | */ |
---|
| 618 | |
---|
| 619 | // So much for error checking... |
---|
| 620 | return TRUE; |
---|
| 621 | } |
---|
| 622 | |
---|
| 623 | |
---|
| 624 | void |
---|
| 625 | OccGridRLE::copy(OccGridRLE *other) |
---|
| 626 | { |
---|
| 627 | OccScanlineRLE *rleScanline; |
---|
| 628 | |
---|
| 629 | this->reset(); |
---|
| 630 | this->copyParams(other); |
---|
| 631 | |
---|
| 632 | for (int zz = 0; zz < this->zdim; zz++) { |
---|
| 633 | for (int yy = 0; yy < this->ydim; yy++) { |
---|
| 634 | rleScanline = other->getRLEScanline(yy, zz); |
---|
| 635 | this->copyScanline(rleScanline, yy, zz); |
---|
| 636 | } |
---|
| 637 | } |
---|
| 638 | |
---|
| 639 | } |
---|
| 640 | |
---|
| 641 | |
---|
| 642 | int |
---|
| 643 | OccGridRLE::transposeXZ(OccGridRLE *outGrid) |
---|
| 644 | { |
---|
| 645 | int zz, yy; |
---|
| 646 | OccScanlineRLE *rleScanlines; |
---|
| 647 | OccElement *elementData; |
---|
| 648 | RunLength *lengthData; |
---|
| 649 | int *runTypes; |
---|
| 650 | |
---|
| 651 | outGrid->reset(); |
---|
| 652 | outGrid->copyParams(this); |
---|
| 653 | |
---|
| 654 | SWAP_INT(outGrid->xdim, outGrid->zdim); |
---|
| 655 | SWAP_FLOAT(outGrid->origin[0], outGrid->origin[2]); |
---|
| 656 | |
---|
| 657 | // Set up the new scanlines |
---|
| 658 | rleScanlines = new OccScanlineRLE[outGrid->zdim]; |
---|
| 659 | |
---|
| 660 | |
---|
| 661 | /* |
---|
| 662 | rleScanlines = new OccScanlineRLE[outGrid->zdim]; |
---|
| 663 | for (zz = 0; zz < outGrid->zdim; zz++) { |
---|
| 664 | rleScanlines[zz].lengths = new RunLength[outGrid->xdim + 1]; |
---|
| 665 | rleScanlines[zz].elements = new OccElement[outGrid->xdim + 1]; |
---|
| 666 | } |
---|
| 667 | */ |
---|
| 668 | |
---|
| 669 | lengthData = new RunLength[(outGrid->xdim+1)*outGrid->zdim]; |
---|
| 670 | elementData = new OccElement[(outGrid->xdim)*outGrid->zdim]; |
---|
| 671 | for (zz = 0; zz < outGrid->zdim; zz++) { |
---|
| 672 | rleScanlines[zz].lengths = lengthData + zz*(outGrid->xdim + 1); |
---|
| 673 | rleScanlines[zz].elements = elementData + zz*(outGrid->xdim); |
---|
| 674 | } |
---|
| 675 | |
---|
| 676 | // For bookeeping |
---|
| 677 | runTypes = new int[outGrid->zdim]; |
---|
| 678 | |
---|
| 679 | // Rename the bookeeping |
---|
| 680 | int *runOffset = runTypes; |
---|
| 681 | |
---|
| 682 | // Loop over slices |
---|
| 683 | for (yy = 0; yy < this->ydim; yy++) { |
---|
| 684 | |
---|
| 685 | // Initialize scanlines and bookkeeping |
---|
| 686 | for (zz = 0; zz < outGrid->zdim; zz++) { |
---|
| 687 | rleScanlines[zz].reset(); |
---|
| 688 | runOffset[zz] = 0; |
---|
| 689 | } |
---|
| 690 | |
---|
| 691 | int xx; |
---|
| 692 | RunLength length; |
---|
| 693 | int runType, i; |
---|
| 694 | OccElement *element; |
---|
| 695 | |
---|
| 696 | |
---|
| 697 | // Lay down first scanline |
---|
| 698 | |
---|
| 699 | xx = 0; |
---|
| 700 | setScanline(yy, 0); |
---|
| 701 | while (TRUE) { |
---|
| 702 | length = getNextLength(); |
---|
| 703 | |
---|
| 704 | runType = getRunType(&length); |
---|
| 705 | |
---|
| 706 | if (runType == OccGridRLE::END_OF_RUN) |
---|
| 707 | break; |
---|
| 708 | |
---|
| 709 | if (runType == OccGridRLE::CONSTANT_DATA) { |
---|
| 710 | element = getNextElement(); |
---|
| 711 | for (i=0; i < length; i++, xx++) { |
---|
| 712 | rleScanlines[xx].putNextElement(element); |
---|
| 713 | } |
---|
| 714 | } |
---|
| 715 | else { |
---|
| 716 | for (i=0; i<length; i++, xx++) { |
---|
| 717 | element = getNextElement(); |
---|
| 718 | rleScanlines[xx].putNextElement(element); |
---|
| 719 | } |
---|
| 720 | } |
---|
| 721 | } |
---|
| 722 | assert(xx == this->xdim); |
---|
| 723 | |
---|
| 724 | |
---|
| 725 | // Process the current and previous scanlines concurrently |
---|
| 726 | |
---|
| 727 | int end1, end2, type1, type2; |
---|
| 728 | RunLength length1, length2; |
---|
| 729 | OccElement *elem1, *elem2; |
---|
| 730 | OccScanlineRLE *lastScanline; |
---|
| 731 | |
---|
| 732 | // Loop over scanlines |
---|
| 733 | |
---|
| 734 | for (zz = 1; zz < this->zdim; zz++) { |
---|
| 735 | |
---|
| 736 | // Load up previous scanline |
---|
| 737 | lastScanline = getRLEScanline(yy, zz-1); |
---|
| 738 | lastScanline->reset(); |
---|
| 739 | |
---|
| 740 | // Load up current scanline |
---|
| 741 | setScanline(yy, zz); |
---|
| 742 | |
---|
| 743 | // Initialize |
---|
| 744 | xx = 0; |
---|
| 745 | end1 = 0; |
---|
| 746 | end2 = 0; |
---|
| 747 | |
---|
| 748 | while (xx < this->xdim) { |
---|
| 749 | // Load up new lengths and/or new element from prior scanline |
---|
| 750 | if (xx == end1) { |
---|
| 751 | length1 = lastScanline->getNextLength(); |
---|
| 752 | type1 = getRunType(&length1); |
---|
| 753 | end1 += length1; |
---|
| 754 | elem1 = lastScanline->getNextElement(); |
---|
| 755 | } else if (type1 == OccGridRLE::VARYING_DATA) { |
---|
| 756 | elem1 = lastScanline->getNextElement(); |
---|
| 757 | } |
---|
| 758 | |
---|
| 759 | // Load up new lengths and/or new element from current scanline |
---|
| 760 | if (xx == end2) { |
---|
| 761 | length2 = getNextLength(); |
---|
| 762 | type2 = getRunType(&length2); |
---|
| 763 | end2 += length2; |
---|
| 764 | elem2 = getNextElement(); |
---|
| 765 | } else if (type2 == OccGridRLE::VARYING_DATA) { |
---|
| 766 | elem2 = getNextElement(); |
---|
| 767 | } |
---|
| 768 | |
---|
| 769 | if (type1 == OccGridRLE::CONSTANT_DATA && |
---|
| 770 | type2 == OccGridRLE::CONSTANT_DATA && |
---|
| 771 | elem1->value == elem2->value && |
---|
| 772 | elem2->totalWeight == elem2->totalWeight) { |
---|
| 773 | |
---|
| 774 | // If both are the same constant value, then skip to end |
---|
| 775 | // of one of them, whichever comes first |
---|
| 776 | xx = MIN(end1, end2); |
---|
| 777 | |
---|
| 778 | } |
---|
| 779 | else if (type1 == OccGridRLE::VARYING_DATA && |
---|
| 780 | type2 == OccGridRLE::VARYING_DATA) { |
---|
| 781 | |
---|
| 782 | // If both are varying values, then write the new value |
---|
| 783 | rleScanlines[xx].putNextElement(elem2); |
---|
| 784 | xx++; |
---|
| 785 | |
---|
| 786 | } else { |
---|
| 787 | // Else, clean up old run by updating length |
---|
| 788 | length = zz - runOffset[xx]; |
---|
| 789 | setRunType(&length, type1); |
---|
| 790 | rleScanlines[xx].putNextLength(length); |
---|
| 791 | |
---|
| 792 | // Prepare for new run |
---|
| 793 | runOffset[xx] = zz; |
---|
| 794 | rleScanlines[xx].putNextElement(elem2); |
---|
| 795 | xx++; |
---|
| 796 | } |
---|
| 797 | } |
---|
| 798 | } |
---|
| 799 | |
---|
| 800 | |
---|
| 801 | // One last run through to finish up lengths |
---|
| 802 | zz = this->zdim; |
---|
| 803 | lastScanline = getRLEScanline(yy, zz-1); |
---|
| 804 | lastScanline->reset(); |
---|
| 805 | xx = 0; |
---|
| 806 | end1 = 0; |
---|
| 807 | while (xx < this->xdim) { |
---|
| 808 | if (xx == end1) { |
---|
| 809 | length1 = lastScanline->getNextLength(); |
---|
| 810 | type1 = getRunType(&length1); |
---|
| 811 | end1 += length1; |
---|
| 812 | elem1 = lastScanline->getNextElement(); |
---|
| 813 | } else if (type1 == OccGridRLE::VARYING_DATA) { |
---|
| 814 | elem1 = lastScanline->getNextElement(); |
---|
| 815 | } |
---|
| 816 | length = zz - runOffset[xx]; |
---|
| 817 | setRunType(&length, type1); |
---|
| 818 | rleScanlines[xx].putNextLength(length); |
---|
| 819 | xx++; |
---|
| 820 | } |
---|
| 821 | |
---|
| 822 | |
---|
| 823 | // Write out the end-of-run flags and copy runs to output grid |
---|
| 824 | for (zz = 0; zz < outGrid->zdim; zz++) { |
---|
| 825 | rleScanlines[zz].putNextLength(OccGridRLE::END_OF_RUN); |
---|
| 826 | outGrid->allocNewRun(yy, zz); |
---|
| 827 | outGrid->copyScanline(&rleScanlines[zz], yy, zz); |
---|
| 828 | } |
---|
| 829 | } |
---|
| 830 | |
---|
| 831 | #if OCCGRIDRLE_RECOMPACT |
---|
| 832 | // Re-compactify |
---|
| 833 | this->copy(outGrid); |
---|
| 834 | |
---|
| 835 | // Put into output |
---|
| 836 | outGrid->copy(this); |
---|
| 837 | #endif //OCCGRIDRLE_RECOMPACT |
---|
| 838 | |
---|
| 839 | // So that scanline deletion will not try to free these |
---|
| 840 | for (zz = 0; zz < outGrid->zdim; zz++) { |
---|
| 841 | rleScanlines[zz].lengths = NULL; |
---|
| 842 | rleScanlines[zz].elements = NULL; |
---|
| 843 | } |
---|
| 844 | |
---|
| 845 | delete [] rleScanlines; |
---|
| 846 | delete [] lengthData; |
---|
| 847 | delete [] elementData; |
---|
| 848 | delete [] runTypes; |
---|
| 849 | |
---|
| 850 | return TRUE; |
---|
| 851 | } |
---|
| 852 | |
---|
| 853 | |
---|
| 854 | int |
---|
| 855 | OccGridRLE::transposeXY(OccGridRLE *outGrid) |
---|
| 856 | { |
---|
| 857 | int zz, yy; |
---|
| 858 | OccScanlineRLE *rleScanlines; |
---|
| 859 | OccElement *elementData; |
---|
| 860 | RunLength *lengthData; |
---|
| 861 | int *runTypes; |
---|
| 862 | |
---|
| 863 | outGrid->reset(); |
---|
| 864 | outGrid->copyParams(this); |
---|
| 865 | |
---|
| 866 | SWAP_INT(outGrid->xdim, outGrid->ydim); |
---|
| 867 | SWAP_FLOAT(outGrid->origin[0], outGrid->origin[1]); |
---|
| 868 | |
---|
| 869 | rleScanlines = new OccScanlineRLE[outGrid->ydim]; |
---|
| 870 | lengthData = new RunLength[(outGrid->xdim+1)*outGrid->ydim]; |
---|
| 871 | elementData = new OccElement[(outGrid->xdim)*outGrid->ydim]; |
---|
| 872 | for (yy = 0; yy < outGrid->ydim; yy++) { |
---|
| 873 | rleScanlines[yy].lengths = lengthData + yy*(outGrid->xdim + 1); |
---|
| 874 | rleScanlines[yy].elements = elementData + yy*(outGrid->xdim); |
---|
| 875 | } |
---|
| 876 | runTypes = new int[outGrid->ydim]; |
---|
| 877 | |
---|
| 878 | // Rename the bookeeping |
---|
| 879 | int *runOffset = runTypes; |
---|
| 880 | |
---|
| 881 | // Loop over slices |
---|
| 882 | for (zz = 0; zz < this->zdim; zz++) { |
---|
| 883 | |
---|
| 884 | // Initialize scanlines and bookkeeping |
---|
| 885 | for (yy = 0; yy < outGrid->ydim; yy++) { |
---|
| 886 | rleScanlines[yy].reset(); |
---|
| 887 | runOffset[yy] = 0; |
---|
| 888 | } |
---|
| 889 | |
---|
| 890 | int xx; |
---|
| 891 | RunLength length; |
---|
| 892 | int runType, i; |
---|
| 893 | OccElement *element; |
---|
| 894 | |
---|
| 895 | |
---|
| 896 | // Lay down first scanline |
---|
| 897 | |
---|
| 898 | xx = 0; |
---|
| 899 | setScanline(0, zz); |
---|
| 900 | while (TRUE) { |
---|
| 901 | length = getNextLength(); |
---|
| 902 | |
---|
| 903 | runType = getRunType(&length); |
---|
| 904 | |
---|
| 905 | if (runType == OccGridRLE::END_OF_RUN) |
---|
| 906 | break; |
---|
| 907 | |
---|
| 908 | if (runType == OccGridRLE::CONSTANT_DATA) { |
---|
| 909 | element = getNextElement(); |
---|
| 910 | for (i=0; i < length; i++, xx++) { |
---|
| 911 | rleScanlines[xx].putNextElement(element); |
---|
| 912 | } |
---|
| 913 | } |
---|
| 914 | else { |
---|
| 915 | for (i=0; i<length; i++, xx++) { |
---|
| 916 | element = getNextElement(); |
---|
| 917 | rleScanlines[xx].putNextElement(element); |
---|
| 918 | } |
---|
| 919 | } |
---|
| 920 | } |
---|
| 921 | assert(xx == this->xdim); |
---|
| 922 | |
---|
| 923 | |
---|
| 924 | // Process the current and previous scanlines concurrently |
---|
| 925 | |
---|
| 926 | int end1, end2, type1, type2; |
---|
| 927 | RunLength length1, length2; |
---|
| 928 | OccElement *elem1, *elem2; |
---|
| 929 | OccScanlineRLE *lastScanline; |
---|
| 930 | |
---|
| 931 | // Loop over scanlines |
---|
| 932 | |
---|
| 933 | for (yy = 1; yy < this->ydim; yy++) { |
---|
| 934 | |
---|
| 935 | // Load up previous scanline |
---|
| 936 | lastScanline = getRLEScanline(yy-1, zz); |
---|
| 937 | lastScanline->reset(); |
---|
| 938 | |
---|
| 939 | // Load up current scanline |
---|
| 940 | setScanline(yy, zz); |
---|
| 941 | |
---|
| 942 | // Initialize |
---|
| 943 | xx = 0; |
---|
| 944 | end1 = 0; |
---|
| 945 | end2 = 0; |
---|
| 946 | |
---|
| 947 | while (xx < this->xdim) { |
---|
| 948 | // Load up new lengths and/or new element from prior scanline |
---|
| 949 | if (xx == end1) { |
---|
| 950 | length1 = lastScanline->getNextLength(); |
---|
| 951 | type1 = getRunType(&length1); |
---|
| 952 | end1 += length1; |
---|
| 953 | elem1 = lastScanline->getNextElement(); |
---|
| 954 | } else if (type1 == OccGridRLE::VARYING_DATA) { |
---|
| 955 | elem1 = lastScanline->getNextElement(); |
---|
| 956 | } |
---|
| 957 | |
---|
| 958 | // Load up new lengths and/or new element from current scanline |
---|
| 959 | if (xx == end2) { |
---|
| 960 | length2 = getNextLength(); |
---|
| 961 | type2 = getRunType(&length2); |
---|
| 962 | end2 += length2; |
---|
| 963 | elem2 = getNextElement(); |
---|
| 964 | } else if (type2 == OccGridRLE::VARYING_DATA) { |
---|
| 965 | elem2 = getNextElement(); |
---|
| 966 | } |
---|
| 967 | |
---|
| 968 | if (type1 == OccGridRLE::CONSTANT_DATA && |
---|
| 969 | type2 == OccGridRLE::CONSTANT_DATA && |
---|
| 970 | elem1->value == elem2->value && |
---|
| 971 | elem2->totalWeight == elem2->totalWeight) { |
---|
| 972 | |
---|
| 973 | // If both are the same constant value, then skip to end |
---|
| 974 | // of one of them, whichever comes first |
---|
| 975 | xx = MIN(end1, end2); |
---|
| 976 | |
---|
| 977 | } |
---|
| 978 | else if (type1 == OccGridRLE::VARYING_DATA && |
---|
| 979 | type2 == OccGridRLE::VARYING_DATA) { |
---|
| 980 | |
---|
| 981 | // If both are varying values, then write the new value |
---|
| 982 | rleScanlines[xx].putNextElement(elem2); |
---|
| 983 | xx++; |
---|
| 984 | |
---|
| 985 | } else { |
---|
| 986 | // Else, clean up old run by updating length |
---|
| 987 | length = yy - runOffset[xx]; |
---|
| 988 | setRunType(&length, type1); |
---|
| 989 | rleScanlines[xx].putNextLength(length); |
---|
| 990 | |
---|
| 991 | // Prepare for new run |
---|
| 992 | runOffset[xx] = yy; |
---|
| 993 | rleScanlines[xx].putNextElement(elem2); |
---|
| 994 | xx++; |
---|
| 995 | } |
---|
| 996 | } |
---|
| 997 | } |
---|
| 998 | |
---|
| 999 | |
---|
| 1000 | // One last run through to finish up lengths |
---|
| 1001 | yy = this->ydim; |
---|
| 1002 | lastScanline = getRLEScanline(yy-1, zz); |
---|
| 1003 | lastScanline->reset(); |
---|
| 1004 | xx = 0; |
---|
| 1005 | end1 = 0; |
---|
| 1006 | while (xx < this->xdim) { |
---|
| 1007 | if (xx == end1) { |
---|
| 1008 | length1 = lastScanline->getNextLength(); |
---|
| 1009 | type1 = getRunType(&length1); |
---|
| 1010 | end1 += length1; |
---|
| 1011 | elem1 = lastScanline->getNextElement(); |
---|
| 1012 | } else if (type1 == OccGridRLE::VARYING_DATA) { |
---|
| 1013 | elem1 = lastScanline->getNextElement(); |
---|
| 1014 | } |
---|
| 1015 | length = yy - runOffset[xx]; |
---|
| 1016 | setRunType(&length, type1); |
---|
| 1017 | rleScanlines[xx].putNextLength(length); |
---|
| 1018 | xx++; |
---|
| 1019 | } |
---|
| 1020 | |
---|
| 1021 | |
---|
| 1022 | // Write out the end-of-run flags and copy runs to output grid |
---|
| 1023 | for (yy = 0; yy < outGrid->ydim; yy++) { |
---|
| 1024 | rleScanlines[yy].putNextLength(OccGridRLE::END_OF_RUN); |
---|
| 1025 | outGrid->allocNewRun(yy, zz); |
---|
| 1026 | outGrid->copyScanline(&rleScanlines[yy], yy, zz); |
---|
| 1027 | } |
---|
| 1028 | } |
---|
| 1029 | |
---|
| 1030 | #if OCCGRIDRLE_RECOMPACT |
---|
| 1031 | // Re-compactify |
---|
| 1032 | this->copy(outGrid); |
---|
| 1033 | |
---|
| 1034 | // Put into output |
---|
| 1035 | outGrid->copy(this); |
---|
| 1036 | #endif //OCCGRIDRLE_RECOMPACT |
---|
| 1037 | |
---|
| 1038 | // So that scanline deletion will not try to free these |
---|
| 1039 | for (yy = 0; yy < outGrid->ydim; yy++) { |
---|
| 1040 | rleScanlines[yy].lengths = NULL; |
---|
| 1041 | rleScanlines[yy].elements = NULL; |
---|
| 1042 | } |
---|
| 1043 | |
---|
| 1044 | delete [] rleScanlines; |
---|
| 1045 | delete [] lengthData; |
---|
| 1046 | delete [] elementData; |
---|
| 1047 | delete [] runTypes; |
---|
| 1048 | |
---|
| 1049 | return TRUE; |
---|
| 1050 | } |
---|
| 1051 | |
---|
| 1052 | |
---|
| 1053 | int |
---|
| 1054 | OccGridRLE::transposeYZ(OccGridRLE *outGrid) |
---|
| 1055 | { |
---|
| 1056 | int yy,zz; |
---|
| 1057 | OccScanlineRLE *rleScanline; |
---|
| 1058 | |
---|
| 1059 | outGrid->reset(); |
---|
| 1060 | outGrid->copyParams(this); |
---|
| 1061 | SWAP_INT(outGrid->ydim, outGrid->zdim); |
---|
| 1062 | SWAP_FLOAT(outGrid->origin[1], outGrid->origin[2]); |
---|
| 1063 | |
---|
| 1064 | for (zz = 0; zz < outGrid->zdim; zz++) { |
---|
| 1065 | for (yy = 0; yy < outGrid->ydim; yy++) { |
---|
| 1066 | rleScanline = this->getRLEScanline(zz, yy); |
---|
| 1067 | outGrid->copyScanline(rleScanline, yy, zz); |
---|
| 1068 | } |
---|
| 1069 | } |
---|
| 1070 | |
---|
| 1071 | if (outGrid->axis == Y_AXIS) |
---|
| 1072 | outGrid->axis = Z_AXIS; |
---|
| 1073 | else if (outGrid->axis == Z_AXIS) |
---|
| 1074 | outGrid->axis = Y_AXIS; |
---|
| 1075 | |
---|
| 1076 | return TRUE; |
---|
| 1077 | } |
---|
| 1078 | |
---|
| 1079 | |
---|
| 1080 | OccScanlineRLE * |
---|
| 1081 | OccGridRLE::getRLEScanline(int y, int z) |
---|
| 1082 | { |
---|
| 1083 | setScanline(y, z); |
---|
| 1084 | rleScanline->lengths = currentLength; |
---|
| 1085 | rleScanline->elements = currentElem; |
---|
| 1086 | rleScanline->reset(); |
---|
| 1087 | return rleScanline; |
---|
| 1088 | } |
---|
| 1089 | |
---|
| 1090 | |
---|
| 1091 | OccElement * |
---|
| 1092 | OccGridRLE::getScanline(int y, int z) |
---|
| 1093 | { |
---|
| 1094 | int i; |
---|
| 1095 | assert (y<=ydim); |
---|
| 1096 | assert (z<=zdim); |
---|
| 1097 | assert (y>=0); |
---|
| 1098 | assert (z>=0); |
---|
| 1099 | setScanline(y, z); |
---|
| 1100 | //printf ("%d %d\n",y,z); |
---|
| 1101 | |
---|
| 1102 | OccElement *scanPtr = this->scanline; |
---|
| 1103 | |
---|
| 1104 | RunLength length; |
---|
| 1105 | int runType; |
---|
| 1106 | OccElement *element; |
---|
| 1107 | |
---|
| 1108 | int xx = 0; |
---|
| 1109 | while (TRUE) { |
---|
| 1110 | length = getNextLength(); |
---|
| 1111 | runType = getRunType(&length); |
---|
| 1112 | |
---|
| 1113 | if (runType == OccGridRLE::END_OF_RUN) |
---|
| 1114 | break; |
---|
| 1115 | |
---|
| 1116 | if (runType == OccGridRLE::CONSTANT_DATA) { |
---|
| 1117 | element = getNextElement(); |
---|
| 1118 | for (i=0; i<length; i++, scanPtr++, xx++) { |
---|
| 1119 | scanPtr->value = element->value; |
---|
| 1120 | scanPtr->totalWeight = element->totalWeight; |
---|
| 1121 | } |
---|
| 1122 | } |
---|
| 1123 | else { |
---|
| 1124 | for (i=0; i<length; i++, scanPtr++, xx++) { |
---|
| 1125 | element = getNextElement(); |
---|
| 1126 | scanPtr->value = element->value; |
---|
| 1127 | scanPtr->totalWeight = element->totalWeight; |
---|
| 1128 | } |
---|
| 1129 | } |
---|
| 1130 | } |
---|
| 1131 | |
---|
| 1132 | assert(xx == this->xdim); |
---|
| 1133 | |
---|
| 1134 | return this->scanline; |
---|
| 1135 | } |
---|
| 1136 | |
---|
| 1137 | |
---|
| 1138 | void |
---|
| 1139 | OccGridRLE::copyScanline(OccScanlineRLE *rleScanline, int y, int z) |
---|
| 1140 | { |
---|
| 1141 | int i; |
---|
| 1142 | RunLength length; |
---|
| 1143 | int runType; |
---|
| 1144 | OccElement *element; |
---|
| 1145 | |
---|
| 1146 | rleScanline->reset(); |
---|
| 1147 | allocNewRun(y,z); |
---|
| 1148 | |
---|
| 1149 | while (TRUE) { |
---|
| 1150 | length = rleScanline->getNextLength(); |
---|
| 1151 | putNextLength(length); |
---|
| 1152 | |
---|
| 1153 | runType = getRunType(&length); |
---|
| 1154 | |
---|
| 1155 | if (runType == OccGridRLE::END_OF_RUN) |
---|
| 1156 | break; |
---|
| 1157 | |
---|
| 1158 | if (runType == OccGridRLE::CONSTANT_DATA) { |
---|
| 1159 | element = rleScanline->getNextElement(); |
---|
| 1160 | putNextElement(element); |
---|
| 1161 | } |
---|
| 1162 | else { |
---|
| 1163 | for (i=0; i<length; i++) { |
---|
| 1164 | element = rleScanline->getNextElement(); |
---|
| 1165 | putNextElement(element); |
---|
| 1166 | } |
---|
| 1167 | } |
---|
| 1168 | } |
---|
| 1169 | } |
---|
| 1170 | |
---|
| 1171 | |
---|
| 1172 | void |
---|
| 1173 | OccGridRLE::putScanline(OccElement *line, int y, int z) |
---|
| 1174 | { |
---|
| 1175 | OccElement *scan = line; |
---|
| 1176 | ushort count; |
---|
| 1177 | |
---|
| 1178 | int xoff = 0; |
---|
| 1179 | |
---|
| 1180 | allocNewRun(y, z); |
---|
| 1181 | |
---|
| 1182 | while (TRUE) { |
---|
| 1183 | if (scan->totalWeight == emptyNoWeight.totalWeight |
---|
| 1184 | && scan->value == emptyNoWeight.value) { |
---|
| 1185 | count = 0; |
---|
| 1186 | while(scan->totalWeight == emptyNoWeight.totalWeight |
---|
| 1187 | && scan->value == emptyNoWeight.value |
---|
| 1188 | && xoff < this->xdim) { |
---|
| 1189 | scan++; |
---|
| 1190 | count++; |
---|
| 1191 | xoff++; |
---|
| 1192 | } |
---|
| 1193 | setRunType(&count, OccGridRLE::CONSTANT_DATA); |
---|
| 1194 | putNextLength(count); |
---|
| 1195 | putNextElement(&emptyNoWeight); |
---|
| 1196 | } |
---|
| 1197 | else if (scan->totalWeight == fullNoWeight.totalWeight |
---|
| 1198 | && scan->value == fullNoWeight.value) { |
---|
| 1199 | count = 0; |
---|
| 1200 | while(scan->totalWeight == fullNoWeight.totalWeight |
---|
| 1201 | && scan->value == fullNoWeight.value |
---|
| 1202 | && xoff < this->xdim) { |
---|
| 1203 | scan++; |
---|
| 1204 | count++; |
---|
| 1205 | xoff++; |
---|
| 1206 | } |
---|
| 1207 | setRunType(&count, OccGridRLE::CONSTANT_DATA); |
---|
| 1208 | putNextLength(count); |
---|
| 1209 | putNextElement(&fullNoWeight); |
---|
| 1210 | } |
---|
| 1211 | else { |
---|
| 1212 | count = 0; |
---|
| 1213 | while (!(scan->totalWeight == emptyNoWeight.totalWeight |
---|
| 1214 | && scan->value == emptyNoWeight.value) && |
---|
| 1215 | !(scan->totalWeight == fullNoWeight.totalWeight |
---|
| 1216 | && scan->value == fullNoWeight.value) && |
---|
| 1217 | xoff < this->xdim) { |
---|
| 1218 | putNextElement(scan); |
---|
| 1219 | scan++; |
---|
| 1220 | count++; |
---|
| 1221 | xoff++; |
---|
| 1222 | } |
---|
| 1223 | setRunType(&count, OccGridRLE::VARYING_DATA); |
---|
| 1224 | putNextLength(count); |
---|
| 1225 | } |
---|
| 1226 | |
---|
| 1227 | if (xoff == this->xdim) { |
---|
| 1228 | setRunType(&count, OccGridRLE::END_OF_RUN); |
---|
| 1229 | putNextLength(count); |
---|
| 1230 | break; |
---|
| 1231 | } |
---|
| 1232 | } |
---|
| 1233 | } |
---|
| 1234 | |
---|
| 1235 | |
---|
| 1236 | OccElement * |
---|
| 1237 | OccGridRLE::getSlice(const char *axis, int sliceNum, int *pxdim, int *pydim) |
---|
| 1238 | { |
---|
| 1239 | OccElement *buf1, *buf2; |
---|
| 1240 | int xx, yy, zz; |
---|
| 1241 | |
---|
| 1242 | buf1 = slice; |
---|
| 1243 | if (EQSTR(axis, "x")) { |
---|
| 1244 | if (sliceNum < this->xdim) { |
---|
| 1245 | for (yy = 0; yy < this->ydim; yy++) { |
---|
| 1246 | for (zz = 0; zz <this->zdim; zz++, buf1++) { |
---|
| 1247 | buf2 = this->getElement(sliceNum, yy, zz); |
---|
| 1248 | buf1->value = buf2->value; |
---|
| 1249 | buf1->totalWeight = buf2->totalWeight; |
---|
| 1250 | } |
---|
| 1251 | } |
---|
| 1252 | } |
---|
| 1253 | *pxdim = this->zdim; |
---|
| 1254 | *pydim = this->ydim; |
---|
| 1255 | } |
---|
| 1256 | else if (EQSTR(axis, "y")) { |
---|
| 1257 | if (sliceNum < this->ydim) { |
---|
| 1258 | for (zz = 0; zz < this->zdim; zz++) { |
---|
| 1259 | buf2 = this->getScanline(sliceNum,zz); |
---|
| 1260 | for (xx = 0; xx < this->xdim; xx++, buf1++, buf2++) { |
---|
| 1261 | buf1->value = buf2->value; |
---|
| 1262 | buf1->totalWeight = buf2->totalWeight; |
---|
| 1263 | } |
---|
| 1264 | } |
---|
| 1265 | } |
---|
| 1266 | *pxdim = this->xdim; |
---|
| 1267 | *pydim = this->zdim; |
---|
| 1268 | } |
---|
| 1269 | else if (EQSTR(axis, "z")) { |
---|
| 1270 | if (sliceNum < this->zdim) { |
---|
| 1271 | for (yy = 0; yy < this->ydim; yy++) { |
---|
| 1272 | buf2 = this->getScanline(yy, sliceNum); |
---|
| 1273 | for (xx = 0; xx < this->xdim; xx++, buf1++, buf2++) { |
---|
| 1274 | buf1->value = buf2->value; |
---|
| 1275 | buf1->totalWeight = buf2->totalWeight; |
---|
| 1276 | } |
---|
| 1277 | } |
---|
| 1278 | } |
---|
| 1279 | *pxdim = this->xdim; |
---|
| 1280 | *pydim = this->ydim; |
---|
| 1281 | } |
---|
| 1282 | |
---|
| 1283 | return this->slice; |
---|
| 1284 | } |
---|
| 1285 | |
---|
| 1286 | |
---|
| 1287 | void |
---|
| 1288 | OccGridRLE::clear() |
---|
| 1289 | { |
---|
| 1290 | RunLength length, end; |
---|
| 1291 | |
---|
| 1292 | this->reset(); |
---|
| 1293 | |
---|
| 1294 | setRunType(&end, OccGridRLE::END_OF_RUN); |
---|
| 1295 | |
---|
| 1296 | length = this->xdim; |
---|
| 1297 | setRunType(&length, OccGridRLE::CONSTANT_DATA); |
---|
| 1298 | |
---|
| 1299 | for (int zz = 0; zz < this->zdim; zz++) { |
---|
| 1300 | for (int yy = 0; yy < this->ydim; yy++) { |
---|
| 1301 | allocNewRun(yy, zz); |
---|
| 1302 | putNextLength(length); |
---|
| 1303 | putNextElement(defaultElement); |
---|
| 1304 | putNextLength(end); |
---|
| 1305 | } |
---|
| 1306 | } |
---|
| 1307 | } |
---|
| 1308 | |
---|
| 1309 | |
---|
| 1310 | void |
---|
| 1311 | OccGridRLE::reset() |
---|
| 1312 | { |
---|
| 1313 | this->lengthChunker->reset(); |
---|
| 1314 | this->elementChunker->reset(); |
---|
| 1315 | } |
---|
| 1316 | |
---|
| 1317 | |
---|
| 1318 | void |
---|
| 1319 | OccGridRLE::runStats(int yy, int zz, int *numRuns, int *numElems) |
---|
| 1320 | { |
---|
| 1321 | int runType, runCount, elemCount; |
---|
| 1322 | RunLength length; |
---|
| 1323 | |
---|
| 1324 | setScanline(yy,zz); |
---|
| 1325 | |
---|
| 1326 | runCount = 0; |
---|
| 1327 | elemCount = 0; |
---|
| 1328 | while (TRUE) { |
---|
| 1329 | length = getNextLength(); |
---|
| 1330 | runType = getRunType(&length); |
---|
| 1331 | |
---|
| 1332 | if (runType == OccGridRLE::END_OF_RUN) |
---|
| 1333 | break; |
---|
| 1334 | |
---|
| 1335 | elemCount += length; |
---|
| 1336 | runCount++; |
---|
| 1337 | } |
---|
| 1338 | |
---|
| 1339 | *numRuns = runCount; |
---|
| 1340 | *numElems = elemCount; |
---|
| 1341 | } |
---|
| 1342 | |
---|
| 1343 | |
---|
| 1344 | OccElement * |
---|
| 1345 | OccGridRLE::getElement(int xx, int yy, int zz) |
---|
| 1346 | { |
---|
| 1347 | OccElement *element; |
---|
| 1348 | RunLength length; |
---|
| 1349 | int runType; |
---|
| 1350 | |
---|
| 1351 | setScanline(yy, zz); |
---|
| 1352 | |
---|
| 1353 | int currentX = 0; |
---|
| 1354 | while (TRUE) { |
---|
| 1355 | length = getNextLength(); |
---|
| 1356 | runType = getRunType(&length); |
---|
| 1357 | |
---|
| 1358 | assert(runType != OccGridRLE::END_OF_RUN); |
---|
| 1359 | |
---|
| 1360 | if (runType == OccGridRLE::CONSTANT_DATA) { |
---|
| 1361 | element = getNextElement(); |
---|
| 1362 | currentX += length; |
---|
| 1363 | if (xx < currentX) |
---|
| 1364 | break; |
---|
| 1365 | } |
---|
| 1366 | else { |
---|
| 1367 | // Really inefficient!! |
---|
| 1368 | /* |
---|
| 1369 | for (int i = 0; i < length; i++, currentX++) { |
---|
| 1370 | element = getNextElement(); |
---|
| 1371 | if (xx == currentX) |
---|
| 1372 | break; |
---|
| 1373 | } |
---|
| 1374 | */ |
---|
| 1375 | |
---|
| 1376 | if (xx < currentX+length) { |
---|
| 1377 | currentElem += (xx - currentX); |
---|
| 1378 | element = getNextElement(); |
---|
| 1379 | break; |
---|
| 1380 | } else { |
---|
| 1381 | currentX += length; |
---|
| 1382 | currentElem += length; |
---|
| 1383 | } |
---|
| 1384 | } |
---|
| 1385 | } |
---|
| 1386 | return element; |
---|
| 1387 | } |
---|
| 1388 | |
---|
| 1389 | OccElement OccGridRLE::voxRead(int x, int y, int z) |
---|
| 1390 | { |
---|
| 1391 | assert(x>=0 && x<xdim && y>=0 && y<ydim && z>=0 && z<zdim); |
---|
| 1392 | OccElement *line; |
---|
| 1393 | line = getScanline(y,z); |
---|
| 1394 | |
---|
| 1395 | return line[x]; |
---|
| 1396 | |
---|
| 1397 | } |
---|
| 1398 | |
---|
| 1399 | void OccGridRLE::voxWrite(int x, int y, int z, OccElement &el) |
---|
| 1400 | { |
---|
| 1401 | assert(x>=0 && x<xdim && y>=0 && y<ydim && z>=0 && z<zdim); |
---|
| 1402 | |
---|
| 1403 | OccElement *line; |
---|
| 1404 | line = getScanline(y,z); |
---|
| 1405 | line[x]=el; |
---|
| 1406 | putScanline(line,y,z); |
---|
| 1407 | } |
---|
| 1408 | |
---|
| 1409 | OccGrid *OccGridRLE::voxExpand() |
---|
| 1410 | { |
---|
| 1411 | puts ("Expanding grid"); |
---|
| 1412 | printf("OccEl size %d\n",sizeof(OccElement)); |
---|
| 1413 | printf("About to use MB%d\n " ,(int)(sizeof(OccElement)*(double)xdim*(double)ydim*(double)zdim/(double)(1024*1024))); |
---|
| 1414 | OccGrid *og=new OccGrid(xdim,ydim,zdim); |
---|
| 1415 | for (int y=0;y<ydim;y++) |
---|
| 1416 | for (int z=0;z<zdim; z++) |
---|
| 1417 | { |
---|
| 1418 | OccElement *line=getScanline(y,z); |
---|
| 1419 | for (int x=0;x<xdim;x++) |
---|
| 1420 | { |
---|
| 1421 | *(og->address(x,y,z))=line[x]; |
---|
| 1422 | } |
---|
| 1423 | } |
---|
| 1424 | puts ("Done expanding grid"); |
---|
| 1425 | return og; |
---|
| 1426 | } |
---|
| 1427 | |
---|
| 1428 | void OccGridRLE::voxRLE(OccGrid *og) |
---|
| 1429 | { |
---|
| 1430 | puts ("Starting grid RLE"); |
---|
| 1431 | for (int y=0;y<ydim;y++) |
---|
| 1432 | for (int z=0;z<zdim; z++) |
---|
| 1433 | { |
---|
| 1434 | OccElement *line=getScanline(y,z); |
---|
| 1435 | for (int x=0;x<xdim;x++) |
---|
| 1436 | { |
---|
| 1437 | line[x]=*(og->address(x,y,z)); |
---|
| 1438 | } |
---|
| 1439 | putScanline(line,y,z); |
---|
| 1440 | } |
---|
| 1441 | puts ("Finished grid RLE"); |
---|
| 1442 | } |
---|