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
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
|
#include <glm/gtc/bitfield.hpp>
#include <glm/gtc/type_precision.hpp>
#include <glm/vector_relational.hpp>
#include <glm/integer.hpp>
#include <ctime>
#include <cstdio>
#include <vector>
namespace mask
{
template <typename genType>
struct type
{
genType Value;
genType Return;
};
inline int mask_zero(int Bits)
{
return ~((~0) << Bits);
}
inline int mask_mix(int Bits)
{
return Bits >= sizeof(int) * 8 ? 0xffffffff : (static_cast<int>(1) << Bits) - static_cast<int>(1);
}
inline int mask_half(int Bits)
{
// We do the shift in two steps because 1 << 32 on an int is undefined.
int const Half = Bits >> 1;
int const Fill = ~0;
int const ShiftHaft = (Fill << Half);
int const Rest = Bits - Half;
int const Reversed = ShiftHaft << Rest;
return ~Reversed;
}
inline int mask_loop(int Bits)
{
int Mask = 0;
for(int Bit = 0; Bit < Bits; ++Bit)
Mask |= (static_cast<int>(1) << Bit);
return Mask;
}
int perf()
{
int const Count = 100000000;
std::clock_t Timestamp1 = std::clock();
{
std::vector<int> Mask;
Mask.resize(Count);
for(int i = 0; i < Count; ++i)
Mask[i] = mask_mix(i % 32);
}
std::clock_t Timestamp2 = std::clock();
{
std::vector<int> Mask;
Mask.resize(Count);
for(int i = 0; i < Count; ++i)
Mask[i] = mask_loop(i % 32);
}
std::clock_t Timestamp3 = std::clock();
{
std::vector<int> Mask;
Mask.resize(Count);
for(int i = 0; i < Count; ++i)
Mask[i] = glm::mask(i % 32);
}
std::clock_t Timestamp4 = std::clock();
{
std::vector<int> Mask;
Mask.resize(Count);
for(int i = 0; i < Count; ++i)
Mask[i] = mask_zero(i % 32);
}
std::clock_t Timestamp5 = std::clock();
{
std::vector<int> Mask;
Mask.resize(Count);
for(int i = 0; i < Count; ++i)
Mask[i] = mask_half(i % 32);
}
std::clock_t Timestamp6 = std::clock();
std::clock_t TimeMix = Timestamp2 - Timestamp1;
std::clock_t TimeLoop = Timestamp3 - Timestamp2;
std::clock_t TimeDefault = Timestamp4 - Timestamp3;
std::clock_t TimeZero = Timestamp5 - Timestamp4;
std::clock_t TimeHalf = Timestamp6 - Timestamp5;
printf("mask[mix]: %d\n", static_cast<unsigned int>(TimeMix));
printf("mask[loop]: %d\n", static_cast<unsigned int>(TimeLoop));
printf("mask[default]: %d\n", static_cast<unsigned int>(TimeDefault));
printf("mask[zero]: %d\n", static_cast<unsigned int>(TimeZero));
printf("mask[half]: %d\n", static_cast<unsigned int>(TimeHalf));
return TimeDefault < TimeLoop ? 0 : 1;
}
int test_uint()
{
type<glm::uint> const Data[] =
{
{ 0, 0x00000000},
{ 1, 0x00000001},
{ 2, 0x00000003},
{ 3, 0x00000007},
{31, 0x7fffffff},
{32, 0xffffffff}
};
int Error(0);
/* mask_zero is sadly not a correct code
for(std::size_t i = 0; i < sizeof(Data) / sizeof(type<int>); ++i)
{
int Result = mask_zero(Data[i].Value);
Error += Data[i].Return == Result ? 0 : 1;
}
*/
for(std::size_t i = 0; i < sizeof(Data) / sizeof(type<int>); ++i)
{
int Result = mask_mix(Data[i].Value);
Error += Data[i].Return == Result ? 0 : 1;
}
for(std::size_t i = 0; i < sizeof(Data) / sizeof(type<int>); ++i)
{
int Result = mask_half(Data[i].Value);
Error += Data[i].Return == Result ? 0 : 1;
}
for(std::size_t i = 0; i < sizeof(Data) / sizeof(type<int>); ++i)
{
int Result = mask_loop(Data[i].Value);
Error += Data[i].Return == Result ? 0 : 1;
}
for(std::size_t i = 0; i < sizeof(Data) / sizeof(type<int>); ++i)
{
int Result = glm::mask(Data[i].Value);
Error += Data[i].Return == Result ? 0 : 1;
}
return Error;
}
int test_uvec4()
{
type<glm::ivec4> const Data[] =
{
{glm::ivec4( 0), glm::ivec4(0x00000000)},
{glm::ivec4( 1), glm::ivec4(0x00000001)},
{glm::ivec4( 2), glm::ivec4(0x00000003)},
{glm::ivec4( 3), glm::ivec4(0x00000007)},
{glm::ivec4(31), glm::ivec4(0x7fffffff)},
{glm::ivec4(32), glm::ivec4(0xffffffff)}
};
int Error(0);
for(std::size_t i = 0, n = sizeof(Data) / sizeof(type<glm::ivec4>); i < n; ++i)
{
glm::ivec4 Result = glm::mask(Data[i].Value);
Error += glm::all(glm::equal(Data[i].Return, Result)) ? 0 : 1;
}
return Error;
}
int test()
{
int Error(0);
Error += test_uint();
Error += test_uvec4();
return Error;
}
}//namespace mask
namespace bitfieldInterleave3
{
template <typename PARAM, typename RET>
inline RET refBitfieldInterleave(PARAM x, PARAM y, PARAM z)
{
RET Result = 0;
for(RET i = 0; i < sizeof(PARAM) * 8; ++i)
{
Result |= ((RET(x) & (RET(1U) << i)) << ((i << 1) + 0));
Result |= ((RET(y) & (RET(1U) << i)) << ((i << 1) + 1));
Result |= ((RET(z) & (RET(1U) << i)) << ((i << 1) + 2));
}
return Result;
}
int test()
{
int Error(0);
glm::uint16 x_max = 1 << 11;
glm::uint16 y_max = 1 << 11;
glm::uint16 z_max = 1 << 11;
for(glm::uint16 z = 0; z < z_max; z += 27)
for(glm::uint16 y = 0; y < y_max; y += 27)
for(glm::uint16 x = 0; x < x_max; x += 27)
{
glm::uint64 ResultA = refBitfieldInterleave<glm::uint16, glm::uint64>(x, y, z);
glm::uint64 ResultB = glm::bitfieldInterleave(x, y, z);
Error += ResultA == ResultB ? 0 : 1;
}
return Error;
}
}
namespace bitfieldInterleave4
{
template <typename PARAM, typename RET>
inline RET loopBitfieldInterleave(PARAM x, PARAM y, PARAM z, PARAM w)
{
RET const v[4] = {x, y, z, w};
RET Result = 0;
for(RET i = 0; i < sizeof(PARAM) * 8; i++)
{
Result |= ((((v[0] >> i) & 1U)) << ((i << 2) + 0));
Result |= ((((v[1] >> i) & 1U)) << ((i << 2) + 1));
Result |= ((((v[2] >> i) & 1U)) << ((i << 2) + 2));
Result |= ((((v[3] >> i) & 1U)) << ((i << 2) + 3));
}
return Result;
}
int test()
{
int Error(0);
glm::uint16 x_max = 1 << 11;
glm::uint16 y_max = 1 << 11;
glm::uint16 z_max = 1 << 11;
glm::uint16 w_max = 1 << 11;
for(glm::uint16 w = 0; w < w_max; w += 27)
for(glm::uint16 z = 0; z < z_max; z += 27)
for(glm::uint16 y = 0; y < y_max; y += 27)
for(glm::uint16 x = 0; x < x_max; x += 27)
{
glm::uint64 ResultA = loopBitfieldInterleave<glm::uint16, glm::uint64>(x, y, z, w);
glm::uint64 ResultB = glm::bitfieldInterleave(x, y, z, w);
Error += ResultA == ResultB ? 0 : 1;
}
return Error;
}
}
namespace bitfieldInterleave
{
inline glm::uint64 fastBitfieldInterleave(glm::uint32 x, glm::uint32 y)
{
glm::uint64 REG1;
glm::uint64 REG2;
REG1 = x;
REG1 = ((REG1 << 16) | REG1) & glm::uint64(0x0000FFFF0000FFFF);
REG1 = ((REG1 << 8) | REG1) & glm::uint64(0x00FF00FF00FF00FF);
REG1 = ((REG1 << 4) | REG1) & glm::uint64(0x0F0F0F0F0F0F0F0F);
REG1 = ((REG1 << 2) | REG1) & glm::uint64(0x3333333333333333);
REG1 = ((REG1 << 1) | REG1) & glm::uint64(0x5555555555555555);
REG2 = y;
REG2 = ((REG2 << 16) | REG2) & glm::uint64(0x0000FFFF0000FFFF);
REG2 = ((REG2 << 8) | REG2) & glm::uint64(0x00FF00FF00FF00FF);
REG2 = ((REG2 << 4) | REG2) & glm::uint64(0x0F0F0F0F0F0F0F0F);
REG2 = ((REG2 << 2) | REG2) & glm::uint64(0x3333333333333333);
REG2 = ((REG2 << 1) | REG2) & glm::uint64(0x5555555555555555);
return REG1 | (REG2 << 1);
}
inline glm::uint64 interleaveBitfieldInterleave(glm::uint32 x, glm::uint32 y)
{
glm::uint64 REG1;
glm::uint64 REG2;
REG1 = x;
REG2 = y;
REG1 = ((REG1 << 16) | REG1) & glm::uint64(0x0000FFFF0000FFFF);
REG2 = ((REG2 << 16) | REG2) & glm::uint64(0x0000FFFF0000FFFF);
REG1 = ((REG1 << 8) | REG1) & glm::uint64(0x00FF00FF00FF00FF);
REG2 = ((REG2 << 8) | REG2) & glm::uint64(0x00FF00FF00FF00FF);
REG1 = ((REG1 << 4) | REG1) & glm::uint64(0x0F0F0F0F0F0F0F0F);
REG2 = ((REG2 << 4) | REG2) & glm::uint64(0x0F0F0F0F0F0F0F0F);
REG1 = ((REG1 << 2) | REG1) & glm::uint64(0x3333333333333333);
REG2 = ((REG2 << 2) | REG2) & glm::uint64(0x3333333333333333);
REG1 = ((REG1 << 1) | REG1) & glm::uint64(0x5555555555555555);
REG2 = ((REG2 << 1) | REG2) & glm::uint64(0x5555555555555555);
return REG1 | (REG2 << 1);
}
/*
inline glm::uint64 loopBitfieldInterleave(glm::uint32 x, glm::uint32 y)
{
static glm::uint64 const Mask[5] =
{
0x5555555555555555,
0x3333333333333333,
0x0F0F0F0F0F0F0F0F,
0x00FF00FF00FF00FF,
0x0000FFFF0000FFFF
};
glm::uint64 REG1 = x;
glm::uint64 REG2 = y;
for(int i = 4; i >= 0; --i)
{
REG1 = ((REG1 << (1 << i)) | REG1) & Mask[i];
REG2 = ((REG2 << (1 << i)) | REG2) & Mask[i];
}
return REG1 | (REG2 << 1);
}
*/
#if GLM_ARCH & GLM_ARCH_SSE2_BIT
inline glm::uint64 sseBitfieldInterleave(glm::uint32 x, glm::uint32 y)
{
GLM_ALIGN(16) glm::uint32 const Array[4] = {x, 0, y, 0};
__m128i const Mask4 = _mm_set1_epi32(0x0000FFFF);
__m128i const Mask3 = _mm_set1_epi32(0x00FF00FF);
__m128i const Mask2 = _mm_set1_epi32(0x0F0F0F0F);
__m128i const Mask1 = _mm_set1_epi32(0x33333333);
__m128i const Mask0 = _mm_set1_epi32(0x55555555);
__m128i Reg1;
__m128i Reg2;
// REG1 = x;
// REG2 = y;
Reg1 = _mm_load_si128((__m128i*)Array);
//REG1 = ((REG1 << 16) | REG1) & glm::uint64(0x0000FFFF0000FFFF);
//REG2 = ((REG2 << 16) | REG2) & glm::uint64(0x0000FFFF0000FFFF);
Reg2 = _mm_slli_si128(Reg1, 2);
Reg1 = _mm_or_si128(Reg2, Reg1);
Reg1 = _mm_and_si128(Reg1, Mask4);
//REG1 = ((REG1 << 8) | REG1) & glm::uint64(0x00FF00FF00FF00FF);
//REG2 = ((REG2 << 8) | REG2) & glm::uint64(0x00FF00FF00FF00FF);
Reg2 = _mm_slli_si128(Reg1, 1);
Reg1 = _mm_or_si128(Reg2, Reg1);
Reg1 = _mm_and_si128(Reg1, Mask3);
//REG1 = ((REG1 << 4) | REG1) & glm::uint64(0x0F0F0F0F0F0F0F0F);
//REG2 = ((REG2 << 4) | REG2) & glm::uint64(0x0F0F0F0F0F0F0F0F);
Reg2 = _mm_slli_epi32(Reg1, 4);
Reg1 = _mm_or_si128(Reg2, Reg1);
Reg1 = _mm_and_si128(Reg1, Mask2);
//REG1 = ((REG1 << 2) | REG1) & glm::uint64(0x3333333333333333);
//REG2 = ((REG2 << 2) | REG2) & glm::uint64(0x3333333333333333);
Reg2 = _mm_slli_epi32(Reg1, 2);
Reg1 = _mm_or_si128(Reg2, Reg1);
Reg1 = _mm_and_si128(Reg1, Mask1);
//REG1 = ((REG1 << 1) | REG1) & glm::uint64(0x5555555555555555);
//REG2 = ((REG2 << 1) | REG2) & glm::uint64(0x5555555555555555);
Reg2 = _mm_slli_epi32(Reg1, 1);
Reg1 = _mm_or_si128(Reg2, Reg1);
Reg1 = _mm_and_si128(Reg1, Mask0);
//return REG1 | (REG2 << 1);
Reg2 = _mm_slli_epi32(Reg1, 1);
Reg2 = _mm_srli_si128(Reg2, 8);
Reg1 = _mm_or_si128(Reg1, Reg2);
GLM_ALIGN(16) glm::uint64 Result[2];
_mm_store_si128((__m128i*)Result, Reg1);
return Result[0];
}
inline glm::uint64 sseUnalignedBitfieldInterleave(glm::uint32 x, glm::uint32 y)
{
glm::uint32 const Array[4] = {x, 0, y, 0};
__m128i const Mask4 = _mm_set1_epi32(0x0000FFFF);
__m128i const Mask3 = _mm_set1_epi32(0x00FF00FF);
__m128i const Mask2 = _mm_set1_epi32(0x0F0F0F0F);
__m128i const Mask1 = _mm_set1_epi32(0x33333333);
__m128i const Mask0 = _mm_set1_epi32(0x55555555);
__m128i Reg1;
__m128i Reg2;
// REG1 = x;
// REG2 = y;
Reg1 = _mm_loadu_si128((__m128i*)Array);
//REG1 = ((REG1 << 16) | REG1) & glm::uint64(0x0000FFFF0000FFFF);
//REG2 = ((REG2 << 16) | REG2) & glm::uint64(0x0000FFFF0000FFFF);
Reg2 = _mm_slli_si128(Reg1, 2);
Reg1 = _mm_or_si128(Reg2, Reg1);
Reg1 = _mm_and_si128(Reg1, Mask4);
//REG1 = ((REG1 << 8) | REG1) & glm::uint64(0x00FF00FF00FF00FF);
//REG2 = ((REG2 << 8) | REG2) & glm::uint64(0x00FF00FF00FF00FF);
Reg2 = _mm_slli_si128(Reg1, 1);
Reg1 = _mm_or_si128(Reg2, Reg1);
Reg1 = _mm_and_si128(Reg1, Mask3);
//REG1 = ((REG1 << 4) | REG1) & glm::uint64(0x0F0F0F0F0F0F0F0F);
//REG2 = ((REG2 << 4) | REG2) & glm::uint64(0x0F0F0F0F0F0F0F0F);
Reg2 = _mm_slli_epi32(Reg1, 4);
Reg1 = _mm_or_si128(Reg2, Reg1);
Reg1 = _mm_and_si128(Reg1, Mask2);
//REG1 = ((REG1 << 2) | REG1) & glm::uint64(0x3333333333333333);
//REG2 = ((REG2 << 2) | REG2) & glm::uint64(0x3333333333333333);
Reg2 = _mm_slli_epi32(Reg1, 2);
Reg1 = _mm_or_si128(Reg2, Reg1);
Reg1 = _mm_and_si128(Reg1, Mask1);
//REG1 = ((REG1 << 1) | REG1) & glm::uint64(0x5555555555555555);
//REG2 = ((REG2 << 1) | REG2) & glm::uint64(0x5555555555555555);
Reg2 = _mm_slli_epi32(Reg1, 1);
Reg1 = _mm_or_si128(Reg2, Reg1);
Reg1 = _mm_and_si128(Reg1, Mask0);
//return REG1 | (REG2 << 1);
Reg2 = _mm_slli_epi32(Reg1, 1);
Reg2 = _mm_srli_si128(Reg2, 8);
Reg1 = _mm_or_si128(Reg1, Reg2);
glm::uint64 Result[2];
_mm_storeu_si128((__m128i*)Result, Reg1);
return Result[0];
}
#endif//GLM_ARCH & GLM_ARCH_SSE2_BIT
int test()
{
{
for(glm::uint32 y = 0; y < (1 << 10); ++y)
for(glm::uint32 x = 0; x < (1 << 10); ++x)
{
glm::uint64 A = glm::bitfieldInterleave(x, y);
glm::uint64 B = fastBitfieldInterleave(x, y);
//glm::uint64 C = loopBitfieldInterleave(x, y);
glm::uint64 D = interleaveBitfieldInterleave(x, y);
assert(A == B);
//assert(A == C);
assert(A == D);
# if GLM_ARCH & GLM_ARCH_SSE2_BIT
glm::uint64 E = sseBitfieldInterleave(x, y);
glm::uint64 F = sseUnalignedBitfieldInterleave(x, y);
assert(A == E);
assert(A == F);
__m128i G = glm_i128_interleave(_mm_set_epi32(0, y, 0, x));
glm::uint64 Result[2];
_mm_storeu_si128((__m128i*)Result, G);
assert(A == Result[0]);
# endif//GLM_ARCH & GLM_ARCH_SSE2_BIT
}
}
{
for(glm::uint8 y = 0; y < 127; ++y)
for(glm::uint8 x = 0; x < 127; ++x)
{
glm::uint64 A(glm::bitfieldInterleave(glm::uint8(x), glm::uint8(y)));
glm::uint64 B(glm::bitfieldInterleave(glm::uint16(x), glm::uint16(y)));
glm::uint64 C(glm::bitfieldInterleave(glm::uint32(x), glm::uint32(y)));
glm::int64 D(glm::bitfieldInterleave(glm::int8(x), glm::int8(y)));
glm::int64 E(glm::bitfieldInterleave(glm::int16(x), glm::int16(y)));
glm::int64 F(glm::bitfieldInterleave(glm::int32(x), glm::int32(y)));
assert(D == E);
assert(D == F);
}
}
return 0;
}
int perf()
{
glm::uint32 x_max = 1 << 11;
glm::uint32 y_max = 1 << 10;
// ALU
std::vector<glm::uint64> Data(x_max * y_max);
std::vector<glm::u32vec2> Param(x_max * y_max);
for(glm::uint32 i = 0; i < Param.size(); ++i)
Param[i] = glm::u32vec2(i % x_max, i / y_max);
{
std::clock_t LastTime = std::clock();
for(std::size_t i = 0; i < Data.size(); ++i)
Data[i] = glm::bitfieldInterleave(Param[i].x, Param[i].y);
std::clock_t Time = std::clock() - LastTime;
std::printf("glm::bitfieldInterleave Time %d clocks\n", static_cast<unsigned int>(Time));
}
{
std::clock_t LastTime = std::clock();
for(std::size_t i = 0; i < Data.size(); ++i)
Data[i] = fastBitfieldInterleave(Param[i].x, Param[i].y);
std::clock_t Time = std::clock() - LastTime;
std::printf("fastBitfieldInterleave Time %d clocks\n", static_cast<unsigned int>(Time));
}
/*
{
std::clock_t LastTime = std::clock();
for(std::size_t i = 0; i < Data.size(); ++i)
Data[i] = loopBitfieldInterleave(Param[i].x, Param[i].y);
std::clock_t Time = std::clock() - LastTime;
std::printf("loopBitfieldInterleave Time %d clocks\n", static_cast<unsigned int>(Time));
}
*/
{
std::clock_t LastTime = std::clock();
for(std::size_t i = 0; i < Data.size(); ++i)
Data[i] = interleaveBitfieldInterleave(Param[i].x, Param[i].y);
std::clock_t Time = std::clock() - LastTime;
std::printf("interleaveBitfieldInterleave Time %d clocks\n", static_cast<unsigned int>(Time));
}
# if GLM_ARCH & GLM_ARCH_SSE2_BIT
{
std::clock_t LastTime = std::clock();
for(std::size_t i = 0; i < Data.size(); ++i)
Data[i] = sseBitfieldInterleave(Param[i].x, Param[i].y);
std::clock_t Time = std::clock() - LastTime;
std::printf("sseBitfieldInterleave Time %d clocks\n", static_cast<unsigned int>(Time));
}
{
std::clock_t LastTime = std::clock();
for(std::size_t i = 0; i < Data.size(); ++i)
Data[i] = sseUnalignedBitfieldInterleave(Param[i].x, Param[i].y);
std::clock_t Time = std::clock() - LastTime;
std::printf("sseUnalignedBitfieldInterleave Time %d clocks\n", static_cast<unsigned int>(Time));
}
# endif//GLM_ARCH & GLM_ARCH_SSE2_BIT
{
std::clock_t LastTime = std::clock();
for(std::size_t i = 0; i < Data.size(); ++i)
Data[i] = glm::bitfieldInterleave(Param[i].x, Param[i].y, Param[i].x);
std::clock_t Time = std::clock() - LastTime;
std::printf("glm::detail::bitfieldInterleave Time %d clocks\n", static_cast<unsigned int>(Time));
}
# if(GLM_ARCH & GLM_ARCH_SSE2_BIT && !(GLM_COMPILER & GLM_COMPILER_GCC))
{
// SIMD
std::vector<__m128i> SimdData;
SimdData.resize(x_max * y_max);
std::vector<__m128i> SimdParam;
SimdParam.resize(x_max * y_max);
for(int i = 0; i < SimdParam.size(); ++i)
SimdParam[i] = _mm_set_epi32(i % x_max, 0, i / y_max, 0);
std::clock_t LastTime = std::clock();
for(std::size_t i = 0; i < SimdData.size(); ++i)
SimdData[i] = glm_i128_interleave(SimdParam[i]);
std::clock_t Time = std::clock() - LastTime;
std::printf("_mm_bit_interleave_si128 Time %d clocks\n", static_cast<unsigned int>(Time));
}
# endif//GLM_ARCH & GLM_ARCH_SSE2_BIT
return 0;
}
}//namespace bitfieldInterleave
int main()
{
int Error(0);
Error += ::mask::test();
Error += ::bitfieldInterleave3::test();
Error += ::bitfieldInterleave4::test();
Error += ::bitfieldInterleave::test();
//Error += ::bitRevert::test();
# ifdef NDEBUG
Error += ::mask::perf();
Error += ::bitfieldInterleave::perf();
# endif//NDEBUG
return Error;
}
|