Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 | 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x | /**
* @license Apache-2.0
*
* Copyright (c) 2026 The Stdlib Authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* eslint-disable max-depth, max-statements */
'use strict';
// MODULES //
var loopOrder = require( '@stdlib/ndarray/base/ternary-loop-interchange-order' );
var blockSize = require( '@stdlib/ndarray/base/ternary-tiling-block-size' );
// MAIN //
/**
* Applies a ternary callback to elements in eight-dimensional input ndarrays and assigns results to elements in an equivalently shaped output ndarray via loop blocking.
*
* @private
* @param {Object} x - object containing input ndarray meta data
* @param {*} x.dtype - data type
* @param {Collection} x.data - data buffer
* @param {NonNegativeIntegerArray} x.shape - dimensions
* @param {IntegerArray} x.strides - stride lengths
* @param {NonNegativeInteger} x.offset - index offset
* @param {string} x.order - specifies whether `x` is row-major (C-style) or column-major (Fortran-style)
* @param {Array<Function>} x.accessors - data buffer accessors
* @param {Object} y - object containing input ndarray meta data
* @param {*} y.dtype - data type
* @param {Collection} y.data - data buffer
* @param {NonNegativeIntegerArray} y.shape - dimensions
* @param {IntegerArray} y.strides - stride lengths
* @param {NonNegativeInteger} y.offset - index offset
* @param {string} y.order - specifies whether `y` is row-major (C-style) or column-major (Fortran-style)
* @param {Array<Function>} y.accessors - data buffer accessors
* @param {Object} z - object containing input ndarray meta data
* @param {*} z.dtype - data type
* @param {Collection} z.data - data buffer
* @param {NonNegativeIntegerArray} z.shape - dimensions
* @param {IntegerArray} z.strides - stride lengths
* @param {NonNegativeInteger} z.offset - index offset
* @param {string} z.order - specifies whether `z` is row-major (C-style) or column-major (Fortran-style)
* @param {Array<Function>} z.accessors - data buffer accessors
* @param {Object} w - object containing output ndarray meta data
* @param {*} w.dtype - data type
* @param {Collection} w.data - data buffer
* @param {NonNegativeIntegerArray} w.shape - dimensions
* @param {IntegerArray} w.strides - stride lengths
* @param {NonNegativeInteger} w.offset - index offset
* @param {string} w.order - specifies whether `w` is row-major (C-style) or column-major (Fortran-style)
* @param {Array<Function>} w.accessors - data buffer accessors
* @param {Callback} fcn - ternary callback
*
* @example
* var toAccessorArray = require( '@stdlib/array/base/to-accessor-array' );
* var accessors = require( '@stdlib/array/base/accessors' );
* var copy = require( '@stdlib/array/base/copy' );
*
* function fcn( a, b, c ) {
* return a + b + c;
* }
*
* // Create data buffers:
* var xbuf = toAccessorArray( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10.0, 11.0, 12.0 ] );
* var ybuf = toAccessorArray( [ 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0 ] );
* var zbuf = toAccessorArray( [ 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5 ] );
* var wbuf = toAccessorArray( [ 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 ] );
*
* // Define the shape of the input and output arrays:
* var shape = [ 1, 1, 1, 1, 1, 2, 3, 2 ];
*
* // Define the array strides:
* var sx = [ 12, 12, 12, 12, 12, 6, 2, 1 ];
* var sy = [ 12, 12, 12, 12, 12, 6, 2, 1 ];
* var sz = [ 12, 12, 12, 12, 12, 6, 2, 1 ];
* var sw = [ 12, 12, 12, 12, 12, 6, 2, 1 ];
*
* // Define the index offsets:
* var ox = 0;
* var oy = 0;
* var oz = 0;
* var ow = 0;
*
* // Create the input and output ndarray-like objects:
* var x = {
* 'dtype': 'generic',
* 'data': xbuf,
* 'shape': shape,
* 'strides': sx,
* 'offset': ox,
* 'order': 'row-major',
* 'accessors': accessors( xbuf ).accessors
* };
* var y = {
* 'dtype': 'generic',
* 'data': ybuf,
* 'shape': shape,
* 'strides': sy,
* 'offset': oy,
* 'order': 'row-major',
* 'accessors': accessors( ybuf ).accessors
* };
* var z = {
* 'dtype': 'generic',
* 'data': zbuf,
* 'shape': shape,
* 'strides': sz,
* 'offset': oz,
* 'order': 'row-major',
* 'accessors': accessors( zbuf ).accessors
* };
* var w = {
* 'dtype': 'generic',
* 'data': wbuf,
* 'shape': shape,
* 'strides': sw,
* 'offset': ow,
* 'order': 'row-major',
* 'accessors': accessors( wbuf ).accessors
* };
*
* // Apply the ternary function:
* blockedternary8d( x, y, z, w, fcn );
*
* console.log( copy( w.data ) );
* // => [ 2.5, 3.5, 4.5, 5.5, 6.5, 7.5, 8.5, 9.5, 10.5, 11.5, 12.5, 13.5 ]
*/
function blockedternary8d( x, y, z, w, fcn ) {
var bsize;
var xbuf;
var ybuf;
var zbuf;
var wbuf;
var xget;
var yget;
var zget;
var wset;
var dx0;
var dx1;
var dx2;
var dx3;
var dx4;
var dx5;
var dx6;
var dx7;
var dy0;
var dy1;
var dy2;
var dy3;
var dy4;
var dy5;
var dy6;
var dy7;
var dz0;
var dz1;
var dz2;
var dz3;
var dz4;
var dz5;
var dz6;
var dz7;
var dw0;
var dw1;
var dw2;
var dw3;
var dw4;
var dw5;
var dw6;
var dw7;
var ox1;
var oy1;
var oz1;
var ow1;
var ox2;
var oy2;
var oz2;
var ow2;
var ox3;
var oy3;
var oz3;
var ow3;
var ox4;
var oy4;
var oz4;
var ow4;
var ox5;
var oy5;
var oz5;
var ow5;
var ox6;
var oy6;
var oz6;
var ow6;
var ox7;
var oy7;
var oz7;
var ow7;
var sh;
var s0;
var s1;
var s2;
var s3;
var s4;
var s5;
var s6;
var s7;
var sx;
var sy;
var sz;
var sw;
var ox;
var oy;
var oz;
var ow;
var ix;
var iy;
var iz;
var iw;
var i0;
var i1;
var i2;
var i3;
var i4;
var i5;
var i6;
var i7;
var j0;
var j1;
var j2;
var j3;
var j4;
var j5;
var j6;
var j7;
var o;
// Note on variable naming convention: s#, dx#, dy#, dz#, dw#, i#, j# where # corresponds to the loop number, with `0` being the innermost loop...
// Resolve the loop interchange order:
o = loopOrder( x.shape, x.strides, y.strides, z.strides, w.strides );
sh = o.sh;
sx = o.sx;
sy = o.sy;
sz = o.sz;
sw = o.sw;
// Determine the block size:
bsize = blockSize( x.dtype, y.dtype, z.dtype, w.dtype );
// Cache the indices of the first indexed elements in the respective ndarrays...
ox = x.offset;
oy = y.offset;
oz = z.offset;
ow = w.offset;
// Cache references to the input and output ndarray buffers...
xbuf = x.data;
ybuf = y.data;
zbuf = z.data;
wbuf = w.data;
// Cache offset increments for the innermost loop...
dx0 = sx[0];
dy0 = sy[0];
dz0 = sz[0];
dw0 = sw[0];
// Cache accessors:
xget = x.accessors[0];
yget = y.accessors[0];
zget = z.accessors[0];
wset = w.accessors[1];
// Iterate over blocks...
for ( j7 = sh[7]; j7 > 0; ) {
if ( j7 < bsize ) {
s7 = j7;
j7 = 0;
} else {
s7 = bsize;
j7 -= bsize;
}
ox7 = ox + ( j7*sx[7] );
oy7 = oy + ( j7*sy[7] );
oz7 = oz + ( j7*sz[7] );
ow7 = ow + ( j7*sw[7] );
for ( j6 = sh[6]; j6 > 0; ) {
if ( j6 < bsize ) {
s6 = j6;
j6 = 0;
} else {
s6 = bsize;
j6 -= bsize;
}
ox6 = ox7 + ( j6*sx[6] );
oy6 = oy7 + ( j6*sy[6] );
oz6 = oz7 + ( j6*sz[6] );
ow6 = ow7 + ( j6*sw[6] );
for ( j5 = sh[5]; j5 > 0; ) {
if ( j5 < bsize ) {
s5 = j5;
j5 = 0;
} else {
s5 = bsize;
j5 -= bsize;
}
ox5 = ox6 + ( j5*sx[5] );
oy5 = oy6 + ( j5*sy[5] );
oz5 = oz6 + ( j5*sz[5] );
ow5 = ow6 + ( j5*sw[5] );
for ( j4 = sh[4]; j4 > 0; ) {
if ( j4 < bsize ) {
s4 = j4;
j4 = 0;
} else {
s4 = bsize;
j4 -= bsize;
}
ox4 = ox5 + ( j4*sx[4] );
oy4 = oy5 + ( j4*sy[4] );
oz4 = oz5 + ( j4*sz[4] );
ow4 = ow5 + ( j4*sw[4] );
for ( j3 = sh[3]; j3 > 0; ) {
if ( j3 < bsize ) {
s3 = j3;
j3 = 0;
} else {
s3 = bsize;
j3 -= bsize;
}
ox3 = ox4 + ( j3*sx[3] );
oy3 = oy4 + ( j3*sy[3] );
oz3 = oz4 + ( j3*sz[3] );
ow3 = ow4 + ( j3*sw[3] );
for ( j2 = sh[2]; j2 > 0; ) {
if ( j2 < bsize ) {
s2 = j2;
j2 = 0;
} else {
s2 = bsize;
j2 -= bsize;
}
ox2 = ox3 + ( j2*sx[2] );
oy2 = oy3 + ( j2*sy[2] );
oz2 = oz3 + ( j2*sz[2] );
ow2 = ow3 + ( j2*sw[2] );
for ( j1 = sh[1]; j1 > 0; ) {
if ( j1 < bsize ) {
s1 = j1;
j1 = 0;
} else {
s1 = bsize;
j1 -= bsize;
}
ox1 = ox2 + ( j1*sx[1] );
oy1 = oy2 + ( j1*sy[1] );
oz1 = oz2 + ( j1*sz[1] );
ow1 = ow2 + ( j1*sw[1] );
for ( j0 = sh[0]; j0 > 0; ) {
if ( j0 < bsize ) {
s0 = j0;
j0 = 0;
} else {
s0 = bsize;
j0 -= bsize;
}
// Compute index offsets for the first input and output ndarray elements in the current block...
ix = ox1 + ( j0*sx[0] );
iy = oy1 + ( j0*sy[0] );
iz = oz1 + ( j0*sz[0] );
iw = ow1 + ( j0*sw[0] );
// Compute loop offset increments...
dx1 = sx[1] - ( s0*sx[0] );
dy1 = sy[1] - ( s0*sy[0] );
dz1 = sz[1] - ( s0*sz[0] );
dw1 = sw[1] - ( s0*sw[0] );
dx2 = sx[2] - ( s1*sx[1] );
dy2 = sy[2] - ( s1*sy[1] );
dz2 = sz[2] - ( s1*sz[1] );
dw2 = sw[2] - ( s1*sw[1] );
dx3 = sx[3] - ( s2*sx[2] );
dy3 = sy[3] - ( s2*sy[2] );
dz3 = sz[3] - ( s2*sz[2] );
dw3 = sw[3] - ( s2*sw[2] );
dx4 = sx[4] - ( s3*sx[3] );
dy4 = sy[4] - ( s3*sy[3] );
dz4 = sz[4] - ( s3*sz[3] );
dw4 = sw[4] - ( s3*sw[3] );
dx5 = sx[5] - ( s4*sx[4] );
dy5 = sy[5] - ( s4*sy[4] );
dz5 = sz[5] - ( s4*sz[4] );
dw5 = sw[5] - ( s4*sw[4] );
dx6 = sx[6] - ( s5*sx[5] );
dy6 = sy[6] - ( s5*sy[5] );
dz6 = sz[6] - ( s5*sz[5] );
dw6 = sw[6] - ( s5*sw[5] );
dx7 = sx[7] - ( s6*sx[6] );
dy7 = sy[7] - ( s6*sy[6] );
dz7 = sz[7] - ( s6*sz[6] );
dw7 = sw[7] - ( s6*sw[6] );
// Iterate over the ndarray dimensions...
for ( i7 = 0; i7 < s7; i7++ ) {
for ( i6 = 0; i6 < s6; i6++ ) {
for ( i5 = 0; i5 < s5; i5++ ) {
for ( i4 = 0; i4 < s4; i4++ ) {
for ( i3 = 0; i3 < s3; i3++ ) {
for ( i2 = 0; i2 < s2; i2++ ) {
for ( i1 = 0; i1 < s1; i1++ ) {
for ( i0 = 0; i0 < s0; i0++ ) {
wset( wbuf, iw, fcn( xget( xbuf, ix ), yget( ybuf, iy ), zget( zbuf, iz ) ) ); // eslint-disable-line max-len
ix += dx0;
iy += dy0;
iz += dz0;
iw += dw0;
}
ix += dx1;
iy += dy1;
iz += dz1;
iw += dw1;
}
ix += dx2;
iy += dy2;
iz += dz2;
iw += dw2;
}
ix += dx3;
iy += dy3;
iz += dz3;
iw += dw3;
}
ix += dx4;
iy += dy4;
iz += dz4;
iw += dw4;
}
ix += dx5;
iy += dy5;
iz += dz5;
iw += dw5;
}
ix += dx6;
iy += dy6;
iz += dz6;
iw += dw6;
}
ix += dx7;
iy += dy7;
iz += dz7;
iw += dw7;
}
}
}
}
}
}
}
}
}
}
// EXPORTS //
module.exports = blockedternary8d;
|