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Side by Side Diff: third_party/WebKit/Source/platform/audio/SincResampler.cpp

Issue 2940933003: DO NOT SUBMIT results of new clang-format (Closed)
Patch Set: Created 3 years, 6 months ago
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1 /* 1 /*
2 * Copyright (C) 2011 Google Inc. All rights reserved. 2 * Copyright (C) 2011 Google Inc. All rights reserved.
3 * 3 *
4 * Redistribution and use in source and binary forms, with or without 4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions 5 * modification, are permitted provided that the following conditions
6 * are met: 6 * are met:
7 * 7 *
8 * 1. Redistributions of source code must retain the above copyright 8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer. 9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright 10 * 2. Redistributions in binary form must reproduce the above copyright
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345 } 345 }
346 #else 346 #else
347 // FIXME: add ARM NEON optimizations for the following. The scalar 347 // FIXME: add ARM NEON optimizations for the following. The scalar
348 // code-path can probably also be optimized better. 348 // code-path can probably also be optimized better.
349 349
350 // Optimize size 32 and size 64 kernels by unrolling the while loop. 350 // Optimize size 32 and size 64 kernels by unrolling the while loop.
351 // A 20 - 30% speed improvement was measured in some cases by using this 351 // A 20 - 30% speed improvement was measured in some cases by using this
352 // approach. 352 // approach.
353 353
354 if (n == 32) { 354 if (n == 32) {
355 CONVOLVE_ONE_SAMPLE // 1 355 CONVOLVE_ONE_SAMPLE // 1
Dan Beam 2017/06/15 22:54:42 this is more "wat", imo. i think these all just n
Nico 2017/06/15 23:00:13 Yeah...can you add ;s here please?
Raymond Toy 2017/06/15 23:03:37 DBC: I'd be perfectly happy to rewrite these macro
356 CONVOLVE_ONE_SAMPLE // 2 356 CONVOLVE_ONE_SAMPLE // 2
357 CONVOLVE_ONE_SAMPLE // 3 357 CONVOLVE_ONE_SAMPLE // 3
358 CONVOLVE_ONE_SAMPLE // 4 358 CONVOLVE_ONE_SAMPLE // 4
359 CONVOLVE_ONE_SAMPLE // 5 359 CONVOLVE_ONE_SAMPLE // 5
360 CONVOLVE_ONE_SAMPLE // 6 360 CONVOLVE_ONE_SAMPLE // 6
361 CONVOLVE_ONE_SAMPLE // 7 361 CONVOLVE_ONE_SAMPLE // 7
362 CONVOLVE_ONE_SAMPLE // 8 362 CONVOLVE_ONE_SAMPLE // 8
363 CONVOLVE_ONE_SAMPLE // 9 363 CONVOLVE_ONE_SAMPLE // 9
364 CONVOLVE_ONE_SAMPLE // 10 364 CONVOLVE_ONE_SAMPLE // 10
365 CONVOLVE_ONE_SAMPLE // 11 365 CONVOLVE_ONE_SAMPLE // 11
366 CONVOLVE_ONE_SAMPLE // 12 366 CONVOLVE_ONE_SAMPLE // 12
367 CONVOLVE_ONE_SAMPLE // 13 367 CONVOLVE_ONE_SAMPLE / / 13
368 CONVOLVE_ONE_SAMPLE // 14 368 CONVOLVE_ONE_SAMPL E // 14
369 CONVOLVE_ONE_SAMPLE // 15 369 CONVOLVE_ONE_S AMPLE // 15
370 CONVOLVE_ONE_SAMPLE // 16 370 CONVOLVE_O NE_SAMPLE // 16
371 CONVOLVE_ONE_SAMPLE // 17 371 CONVOL VE_ONE_SAMPLE // 17
372 CONVOLVE_ONE_SAMPLE // 18 372 CO NVOLVE_ONE_SAMPLE // 18
373 CONVOLVE_ONE_SAMPLE // 19 373 CONVOLVE_ONE_SAMPLE // 19
374 CONVOLVE_ONE_SAMPLE // 20 374 CONVOLVE_ONE_SAMPLE // 20
375 CONVOLVE_ONE_SAMPLE // 21 375 CONVOLVE_ONE_SAMPLE // 21
376 CONVOLVE_ONE_SAMPLE // 22 376 CONVOLVE_ONE_SAMPLE // 22
377 CONVOLVE_ONE_SAMPLE // 23 377 CONVOLVE_ONE_SAMPLE // 23
378 CONVOLVE_ONE_SAMPLE // 24 378 CONVOLVE_ONE_SAMPLE // 24
379 CONVOLVE_ONE_SAMPLE // 25 379 CONVOLVE_ONE_SAMPLE // 25
380 CONVOLVE_ONE_SAMPLE // 26 380 CONVOLVE_ONE_SAMPLE // 26
381 CONVOLVE_ONE_SAMPLE // 27 381 CONVOLVE_ONE_SAMPLE // 27
382 CONVOLVE_ONE_SAMPLE // 28 382 CONVOLVE_ONE_SAMPLE // 28
383 CONVOLVE_ONE_SAMPLE // 29 383 CONVOLVE_ONE_SAMPLE // 29
384 CONVOLVE_ONE_SAMPLE // 30 384 CONVOLVE_ONE_SAMPLE // 30
385 CONVOLVE_ONE_SAMPLE // 31 385 CONVOLVE_ONE_SAMPLE // 31
386 CONVOLVE_ONE_SAMPLE // 32 386 CONVOLVE_ONE_SAMPLE // 32
387 } else if (n == 64) { 387 } else if (n == 64) {
388 CONVOLVE_ONE_SAMPLE // 1 388 CONVOLVE_ONE_SAMPLE // 1
389 CONVOLVE_ONE_SAMPLE // 2 389 CONVOLVE_ONE_SAMPLE // 2
390 CONVOLVE_ONE_SAMPLE // 3 390 CONVOLVE_ONE_SAMPLE // 3
391 CONVOLVE_ONE_SAMPLE // 4 391 CONVOLVE_ONE_SAMPLE // 4
392 CONVOLVE_ONE_SAMPLE // 5 392 CONVOLVE_ONE_SAMPLE // 5
393 CONVOLVE_ONE_SAMPLE // 6 393 CONVOLVE_ONE_SAMPLE // 6
394 CONVOLVE_ONE_SAMPLE // 7 394 CONVOLVE_ONE_SAMPLE // 7
395 CONVOLVE_ONE_SAMPLE // 8 395 CONVOLVE_ONE_SAMPLE // 8
396 CONVOLVE_ONE_SAMPLE // 9 396 CONVOLVE_ONE_SAMPLE // 9
397 CONVOLVE_ONE_SAMPLE // 10 397 CONVOLVE_ONE_SAMPLE // 10
398 CONVOLVE_ONE_SAMPLE // 11 398 CONVOLVE_ONE_SAMPLE // 11
399 CONVOLVE_ONE_SAMPLE // 12 399 CONVOLVE_ONE_SAMPLE // 12
400 CONVOLVE_ONE_SAMPLE // 13 400 CONVOLVE_ONE_SAMPLE / / 13
401 CONVOLVE_ONE_SAMPLE // 14 401 CONVOLVE_ONE_SAMPL E // 14
402 CONVOLVE_ONE_SAMPLE // 15 402 CONVOLVE_ONE_S AMPLE // 15
403 CONVOLVE_ONE_SAMPLE // 16 403 CONVOLVE_O NE_SAMPLE // 16
404 CONVOLVE_ONE_SAMPLE // 17 404 CONVOL VE_ONE_SAMPLE // 17
405 CONVOLVE_ONE_SAMPLE // 18 405 CO NVOLVE_ONE_SAMPLE // 18
406 CONVOLVE_ONE_SAMPLE // 19 406 CONVOLVE_ONE_SAMPLE // 19
407 CONVOLVE_ONE_SAMPLE // 20 407 CONVOLVE_ONE_SAMPLE // 20
408 CONVOLVE_ONE_SAMPLE // 21 408 CONVOLVE_ONE_SAMPLE // 21
409 CONVOLVE_ONE_SAMPLE // 22 409 CONVOLVE_ONE_SAMPLE // 22
410 CONVOLVE_ONE_SAMPLE // 23 410 CONVOLVE_ONE_SAMPLE // 23
411 CONVOLVE_ONE_SAMPLE // 24 411 CONVOLVE_ONE_SAMPLE // 24
412 CONVOLVE_ONE_SAMPLE // 25 412 CONVOLVE_ONE_SAMPLE // 25
413 CONVOLVE_ONE_SAMPLE // 26 413 CONVOLVE_ONE_SAMPLE // 26
414 CONVOLVE_ONE_SAMPLE // 27 414 CONVOLVE_ONE_SAMPLE // 27
415 CONVOLVE_ONE_SAMPLE // 28 415 CONVOLVE_ONE_SAMPLE // 28
416 CONVOLVE_ONE_SAMPLE // 29 416 CONVOLVE_ONE_SAMPLE // 29
417 CONVOLVE_ONE_SAMPLE // 30 417 CONVOLVE_ONE_SAMPLE // 30
418 CONVOLVE_ONE_SAMPLE // 31 418 CONVOLVE_ONE_SAMPLE // 31
419 CONVOLVE_ONE_SAMPLE // 32 419 CONVOLVE_ONE_SAMPLE // 32
420 CONVOLVE_ONE_SAMPLE // 33 420 CONVOLVE_ONE_SAMPLE / / 33
421 CONVOLVE_ONE_SAMPLE // 34 421 CONVOLVE_ONE_SAMPL E // 34
422 CONVOLVE_ONE_SAMPLE // 35 422 CONVOLVE_ONE_S AMPLE // 35
423 CONVOLVE_ONE_SAMPLE // 36 423 CONVOLVE_O NE_SAMPLE // 36
424 CONVOLVE_ONE_SAMPLE // 37 424 CONVOL VE_ONE_SAMPLE // 37
425 CONVOLVE_ONE_SAMPLE // 38 425 CO NVOLVE_ONE_SAMPLE // 38
426 CONVOLVE_ONE_SAMPLE // 39 426 CONVOLVE_ONE_SAMPLE // 39
427 CONVOLVE_ONE_SAMPLE // 40 427 CONVOLVE_ONE_SAMPLE // 40
428 CONVOLVE_ONE_SAMPLE // 41 428 CONVOLVE_ONE_SAMPLE // 41
429 CONVOLVE_ONE_SAMPLE // 42 429 CONVOLVE_ONE_SAMPLE // 42
430 CONVOLVE_ONE_SAMPLE // 43 430 CONVOLVE_ONE_SAMPLE // 43
431 CONVOLVE_ONE_SAMPLE // 44 431 CONVOLVE_ONE_SAMPLE // 44
432 CONVOLVE_ONE_SAMPLE // 45 432 CONVOLVE_ONE_SAMPLE // 45
433 CONVOLVE_ONE_SAMPLE // 46 433 CONVOLVE_ONE_SAMPLE // 46
434 CONVOLVE_ONE_SAMPLE // 47 434 CONVOLVE_ONE_SAMPLE // 47
435 CONVOLVE_ONE_SAMPLE // 48 435 CONVOLVE_ONE_SAMPLE // 48
436 CONVOLVE_ONE_SAMPLE // 49 436 CONVOLVE_ONE_SAMPLE // 49
437 CONVOLVE_ONE_SAMPLE // 50 437 CONVOLVE_ONE_SAMPLE // 50
438 CONVOLVE_ONE_SAMPLE // 51 438 CONVOLVE_ONE_SAMPLE // 51
439 CONVOLVE_ONE_SAMPLE // 52 439 CONVOLVE_ONE_SAMPLE // 52
440 CONVOLVE_ONE_SAMPLE // 53 440 CONVOLVE_ONE_SAMPLE / / 53
441 CONVOLVE_ONE_SAMPLE // 54 441 CONVOLVE_ONE_SAMPL E // 54
442 CONVOLVE_ONE_SAMPLE // 55 442 CONVOLVE_ONE_S AMPLE // 55
443 CONVOLVE_ONE_SAMPLE // 56 443 CONVOLVE_O NE_SAMPLE // 56
444 CONVOLVE_ONE_SAMPLE // 57 444 CONVOL VE_ONE_SAMPLE // 57
445 CONVOLVE_ONE_SAMPLE // 58 445 CO NVOLVE_ONE_SAMPLE // 58
446 CONVOLVE_ONE_SAMPLE // 59 446 CONVOLVE_ONE_SAMPLE // 59
447 CONVOLVE_ONE_SAMPLE // 60 447 CONVOLVE_ONE_SAMPLE // 60
448 CONVOLVE_ONE_SAMPLE // 61 448 CONVOLVE_ONE_SAMPLE // 61
449 CONVOLVE_ONE_SAMPLE // 62 449 CONVOLVE_ONE_SAMPLE // 62
450 CONVOLVE_ONE_SAMPLE // 63 450 CONVOLVE_ONE_SAMPLE // 63
451 CONVOLVE_ONE_SAMPLE // 64 451 CONVOLVE_ONE_SAMPLE // 64
452 } else { 452 } else {
453 while (n--) { 453 while (n--) {
454 // Non-optimized using actual while loop. 454 // Non-optimized using actual while loop.
455 CONVOLVE_ONE_SAMPLE 455 CONVOLVE_ONE_SAMPLE
456 } 456 }
457 } 457 }
458 #endif 458 #endif
459 } 459 }
460 460
461 // Linearly interpolate the two "convolutions". 461 // Linearly interpolate the two "convolutions".
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480 memcpy(r1, r3, sizeof(float) * (kernel_size_ / 2)); 480 memcpy(r1, r3, sizeof(float) * (kernel_size_ / 2));
481 memcpy(r2, r4, sizeof(float) * (kernel_size_ / 2)); 481 memcpy(r2, r4, sizeof(float) * (kernel_size_ / 2));
482 482
483 // Step (4) 483 // Step (4)
484 // Refresh the buffer with more input. 484 // Refresh the buffer with more input.
485 ConsumeSource(r5, block_size_); 485 ConsumeSource(r5, block_size_);
486 } 486 }
487 } 487 }
488 488
489 } // namespace blink 489 } // namespace blink
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