66 #ifndef INCLUDED_volk_64u_byteswap_u_H
67 #define INCLUDED_volk_64u_byteswap_u_H
73 #include <emmintrin.h>
77 uint32_t* inputPtr = (uint32_t*)intsToSwap;
78 __m128i input, byte1, byte2, byte3, byte4, output;
79 __m128i byte2mask = _mm_set1_epi32(0x00FF0000);
80 __m128i byte3mask = _mm_set1_epi32(0x0000FF00);
82 const unsigned int halfPoints = num_points / 2;
83 for (; number < halfPoints; number++) {
85 input = _mm_loadu_si128((__m128i*)inputPtr);
88 byte1 = _mm_slli_epi32(input, 24);
89 byte2 = _mm_slli_epi32(input, 8);
90 byte3 = _mm_srli_epi32(input, 8);
91 byte4 = _mm_srli_epi32(input, 24);
93 output = _mm_or_si128(byte1, byte4);
94 byte2 = _mm_and_si128(byte2, byte2mask);
95 output = _mm_or_si128(output, byte2);
96 byte3 = _mm_and_si128(byte3, byte3mask);
97 output = _mm_or_si128(output, byte3);
100 output = _mm_shuffle_epi32(output, _MM_SHUFFLE(2, 3, 0, 1));
103 _mm_storeu_si128((__m128i*)inputPtr, output);
108 number = halfPoints * 2;
109 for (; number < num_points; number++) {
110 uint32_t output1 = *inputPtr;
111 uint32_t output2 = inputPtr[1];
113 output1 = (((output1 >> 24) & 0xff) | ((output1 >> 8) & 0x0000ff00) |
114 ((output1 << 8) & 0x00ff0000) | ((output1 << 24) & 0xff000000));
116 output2 = (((output2 >> 24) & 0xff) | ((output2 >> 8) & 0x0000ff00) |
117 ((output2 << 8) & 0x00ff0000) | ((output2 << 24) & 0xff000000));
119 *inputPtr++ = output2;
120 *inputPtr++ = output1;
126 #ifdef LV_HAVE_GENERIC
129 unsigned int num_points)
131 uint32_t* inputPtr = (uint32_t*)intsToSwap;
133 for (point = 0; point < num_points; point++) {
134 uint32_t output1 = *inputPtr;
135 uint32_t output2 = inputPtr[1];
137 output1 = (((output1 >> 24) & 0xff) | ((output1 >> 8) & 0x0000ff00) |
138 ((output1 << 8) & 0x00ff0000) | ((output1 << 24) & 0xff000000));
140 output2 = (((output2 >> 24) & 0xff) | ((output2 >> 8) & 0x0000ff00) |
141 ((output2 << 8) & 0x00ff0000) | ((output2 << 24) & 0xff000000));
143 *inputPtr++ = output2;
144 *inputPtr++ = output1;
150 #include <immintrin.h>
151 static inline void volk_64u_byteswap_a_avx2(uint64_t* intsToSwap,
unsigned int num_points)
153 unsigned int number = 0;
155 const unsigned int nPerSet = 4;
156 const uint64_t nSets = num_points / nPerSet;
158 uint32_t* inputPtr = (uint32_t*)intsToSwap;
160 const uint8_t shuffleVector[32] = { 7, 6, 5, 4, 3, 2, 1, 0, 15, 14, 13,
161 12, 11, 10, 9, 8, 23, 22, 21, 20, 19, 18,
162 17, 16, 31, 30, 29, 28, 27, 26, 25, 24 };
164 const __m256i myShuffle = _mm256_loadu_si256((__m256i*)&shuffleVector[0]);
166 for (; number < nSets; number++) {
169 const __m256i input = _mm256_load_si256((__m256i*)inputPtr);
170 const __m256i output = _mm256_shuffle_epi8(input, myShuffle);
173 _mm256_store_si256((__m256i*)inputPtr, output);
176 inputPtr += 2 * nPerSet;
180 for (number = nSets * nPerSet; number < num_points; ++number) {
181 uint32_t output1 = *inputPtr;
182 uint32_t output2 = inputPtr[1];
184 ((((output1) >> 24) & 0x000000ff) | (((output1) >> 8) & 0x0000ff00) |
185 (((output1) << 8) & 0x00ff0000) | (((output1) << 24) & 0xff000000));
188 ((((output2) >> 24) & 0x000000ff) | (((output2) >> 8) & 0x0000ff00) |
189 (((output2) << 8) & 0x00ff0000) | (((output2) << 24) & 0xff000000));
199 #include <tmmintrin.h>
201 unsigned int num_points)
203 unsigned int number = 0;
205 const unsigned int nPerSet = 2;
206 const uint64_t nSets = num_points / nPerSet;
208 uint32_t* inputPtr = (uint32_t*)intsToSwap;
210 uint8_t shuffleVector[16] = { 7, 6, 5, 4, 3, 2, 1, 0, 15, 14, 13, 12, 11, 10, 9, 8 };
212 const __m128i myShuffle = _mm_loadu_si128((__m128i*)&shuffleVector);
214 for (; number < nSets; number++) {
217 const __m128i input = _mm_load_si128((__m128i*)inputPtr);
218 const __m128i output = _mm_shuffle_epi8(input, myShuffle);
221 _mm_store_si128((__m128i*)inputPtr, output);
224 inputPtr += 2 * nPerSet;
228 for (number = nSets * nPerSet; number < num_points; ++number) {
229 uint32_t output1 = *inputPtr;
230 uint32_t output2 = inputPtr[1];
232 ((((output1) >> 24) & 0x000000ff) | (((output1) >> 8) & 0x0000ff00) |
233 (((output1) << 8) & 0x00ff0000) | (((output1) << 24) & 0xff000000));
236 ((((output2) >> 24) & 0x000000ff) | (((output2) >> 8) & 0x0000ff00) |
237 (((output2) << 8) & 0x00ff0000) | (((output2) << 24) & 0xff000000));
245 #ifdef LV_HAVE_NEONV8
246 #include <arm_neon.h>
248 static inline void volk_64u_byteswap_neonv8(uint64_t* intsToSwap,
unsigned int num_points)
250 uint32_t* inputPtr = (uint32_t*)intsToSwap;
251 const unsigned int n4points = num_points / 4;
253 uint8x16_t idx = { 7, 6, 5, 4, 3, 2, 1, 0, 15, 14, 13, 12, 11, 10, 9, 8 };
255 unsigned int number = 0;
256 for (number = 0; number < n4points; ++number) {
258 input = vld2q_u8((uint8_t*)inputPtr);
259 input.val[0] = vqtbl1q_u8(input.val[0], idx);
260 input.val[1] = vqtbl1q_u8(input.val[1], idx);
261 vst2q_u8((uint8_t*)inputPtr, input);
266 for (number = n4points * 4; number < num_points; ++number) {
267 uint32_t output1 = *inputPtr;
268 uint32_t output2 = inputPtr[1];
270 output1 = (((output1 >> 24) & 0xff) | ((output1 >> 8) & 0x0000ff00) |
271 ((output1 << 8) & 0x00ff0000) | ((output1 << 24) & 0xff000000));
272 output2 = (((output2 >> 24) & 0xff) | ((output2 >> 8) & 0x0000ff00) |
273 ((output2 << 8) & 0x00ff0000) | ((output2 << 24) & 0xff000000));
275 *inputPtr++ = output2;
276 *inputPtr++ = output1;
281 #include <arm_neon.h>
285 uint32_t* inputPtr = (uint32_t*)intsToSwap;
286 unsigned int number = 0;
287 unsigned int n8points = num_points / 4;
289 uint8x8x4_t input_table;
290 uint8x8_t int_lookup01, int_lookup23, int_lookup45, int_lookup67;
291 uint8x8_t swapped_int01, swapped_int23, swapped_int45, swapped_int67;
301 int_lookup01 = vcreate_u8(2269495096316185);
302 int_lookup23 = vcreate_u8(146949840772469531);
303 int_lookup45 = vcreate_u8(291630186448622877);
304 int_lookup67 = vcreate_u8(436310532124776223);
306 for (number = 0; number < n8points; ++number) {
307 input_table = vld4_u8((uint8_t*)inputPtr);
308 swapped_int01 = vtbl4_u8(input_table, int_lookup01);
309 swapped_int23 = vtbl4_u8(input_table, int_lookup23);
310 swapped_int45 = vtbl4_u8(input_table, int_lookup45);
311 swapped_int67 = vtbl4_u8(input_table, int_lookup67);
312 vst1_u8((uint8_t*)inputPtr, swapped_int01);
313 vst1_u8((uint8_t*)(inputPtr + 2), swapped_int23);
314 vst1_u8((uint8_t*)(inputPtr + 4), swapped_int45);
315 vst1_u8((uint8_t*)(inputPtr + 6), swapped_int67);
320 for (number = n8points * 4; number < num_points; ++number) {
321 uint32_t output1 = *inputPtr;
322 uint32_t output2 = inputPtr[1];
324 output1 = (((output1 >> 24) & 0xff) | ((output1 >> 8) & 0x0000ff00) |
325 ((output1 << 8) & 0x00ff0000) | ((output1 << 24) & 0xff000000));
326 output2 = (((output2 >> 24) & 0xff) | ((output2 >> 8) & 0x0000ff00) |
327 ((output2 << 8) & 0x00ff0000) | ((output2 << 24) & 0xff000000));
329 *inputPtr++ = output2;
330 *inputPtr++ = output1;
337 #ifndef INCLUDED_volk_64u_byteswap_a_H
338 #define INCLUDED_volk_64u_byteswap_a_H
340 #include <inttypes.h>
345 #include <emmintrin.h>
349 uint32_t* inputPtr = (uint32_t*)intsToSwap;
350 __m128i input, byte1, byte2, byte3, byte4, output;
351 __m128i byte2mask = _mm_set1_epi32(0x00FF0000);
352 __m128i byte3mask = _mm_set1_epi32(0x0000FF00);
354 const unsigned int halfPoints = num_points / 2;
355 for (; number < halfPoints; number++) {
357 input = _mm_load_si128((__m128i*)inputPtr);
360 byte1 = _mm_slli_epi32(input, 24);
361 byte2 = _mm_slli_epi32(input, 8);
362 byte3 = _mm_srli_epi32(input, 8);
363 byte4 = _mm_srli_epi32(input, 24);
365 output = _mm_or_si128(byte1, byte4);
366 byte2 = _mm_and_si128(byte2, byte2mask);
367 output = _mm_or_si128(output, byte2);
368 byte3 = _mm_and_si128(byte3, byte3mask);
369 output = _mm_or_si128(output, byte3);
372 output = _mm_shuffle_epi32(output, _MM_SHUFFLE(2, 3, 0, 1));
375 _mm_store_si128((__m128i*)inputPtr, output);
380 number = halfPoints * 2;
381 for (; number < num_points; number++) {
382 uint32_t output1 = *inputPtr;
383 uint32_t output2 = inputPtr[1];
385 output1 = (((output1 >> 24) & 0xff) | ((output1 >> 8) & 0x0000ff00) |
386 ((output1 << 8) & 0x00ff0000) | ((output1 << 24) & 0xff000000));
388 output2 = (((output2 >> 24) & 0xff) | ((output2 >> 8) & 0x0000ff00) |
389 ((output2 << 8) & 0x00ff0000) | ((output2 << 24) & 0xff000000));
391 *inputPtr++ = output2;
392 *inputPtr++ = output1;
398 #include <immintrin.h>
399 static inline void volk_64u_byteswap_u_avx2(uint64_t* intsToSwap,
unsigned int num_points)
401 unsigned int number = 0;
403 const unsigned int nPerSet = 4;
404 const uint64_t nSets = num_points / nPerSet;
406 uint32_t* inputPtr = (uint32_t*)intsToSwap;
408 const uint8_t shuffleVector[32] = { 7, 6, 5, 4, 3, 2, 1, 0, 15, 14, 13,
409 12, 11, 10, 9, 8, 23, 22, 21, 20, 19, 18,
410 17, 16, 31, 30, 29, 28, 27, 26, 25, 24 };
412 const __m256i myShuffle = _mm256_loadu_si256((__m256i*)&shuffleVector[0]);
414 for (; number < nSets; number++) {
416 const __m256i input = _mm256_loadu_si256((__m256i*)inputPtr);
417 const __m256i output = _mm256_shuffle_epi8(input, myShuffle);
420 _mm256_storeu_si256((__m256i*)inputPtr, output);
423 inputPtr += 2 * nPerSet;
427 for (number = nSets * nPerSet; number < num_points; ++number) {
428 uint32_t output1 = *inputPtr;
429 uint32_t output2 = inputPtr[1];
431 ((((output1) >> 24) & 0x000000ff) | (((output1) >> 8) & 0x0000ff00) |
432 (((output1) << 8) & 0x00ff0000) | (((output1) << 24) & 0xff000000));
435 ((((output2) >> 24) & 0x000000ff) | (((output2) >> 8) & 0x0000ff00) |
436 (((output2) << 8) & 0x00ff0000) | (((output2) << 24) & 0xff000000));
446 #include <tmmintrin.h>
448 unsigned int num_points)
450 unsigned int number = 0;
452 const unsigned int nPerSet = 2;
453 const uint64_t nSets = num_points / nPerSet;
455 uint32_t* inputPtr = (uint32_t*)intsToSwap;
457 uint8_t shuffleVector[16] = { 7, 6, 5, 4, 3, 2, 1, 0, 15, 14, 13, 12, 11, 10, 9, 8 };
459 const __m128i myShuffle = _mm_loadu_si128((__m128i*)&shuffleVector);
461 for (; number < nSets; number++) {
463 const __m128i input = _mm_loadu_si128((__m128i*)inputPtr);
464 const __m128i output = _mm_shuffle_epi8(input, myShuffle);
467 _mm_storeu_si128((__m128i*)inputPtr, output);
470 inputPtr += 2 * nPerSet;
474 for (number = nSets * nPerSet; number < num_points; ++number) {
475 uint32_t output1 = *inputPtr;
476 uint32_t output2 = inputPtr[1];
478 ((((output1) >> 24) & 0x000000ff) | (((output1) >> 8) & 0x0000ff00) |
479 (((output1) << 8) & 0x00ff0000) | (((output1) << 24) & 0xff000000));
482 ((((output2) >> 24) & 0x000000ff) | (((output2) >> 8) & 0x0000ff00) |
483 (((output2) << 8) & 0x00ff0000) | (((output2) << 24) & 0xff000000));
490 #ifdef LV_HAVE_GENERIC
493 unsigned int num_points)
495 uint32_t* inputPtr = (uint32_t*)intsToSwap;
497 for (point = 0; point < num_points; point++) {
498 uint32_t output1 = *inputPtr;
499 uint32_t output2 = inputPtr[1];
501 output1 = (((output1 >> 24) & 0xff) | ((output1 >> 8) & 0x0000ff00) |
502 ((output1 << 8) & 0x00ff0000) | ((output1 << 24) & 0xff000000));
504 output2 = (((output2 >> 24) & 0xff) | ((output2 >> 8) & 0x0000ff00) |
505 ((output2 << 8) & 0x00ff0000) | ((output2 << 24) & 0xff000000));
507 *inputPtr++ = output2;
508 *inputPtr++ = output1;
static void volk_64u_byteswap_a_generic(uint64_t *intsToSwap, unsigned int num_points)
Definition: volk_64u_byteswap.h:492
static void volk_64u_byteswap_a_ssse3(uint64_t *intsToSwap, unsigned int num_points)
Definition: volk_64u_byteswap.h:200
static void volk_64u_byteswap_a_sse2(uint64_t *intsToSwap, unsigned int num_points)
Definition: volk_64u_byteswap.h:347
static void volk_64u_byteswap_u_ssse3(uint64_t *intsToSwap, unsigned int num_points)
Definition: volk_64u_byteswap.h:447
static void volk_64u_byteswap_u_sse2(uint64_t *intsToSwap, unsigned int num_points)
Definition: volk_64u_byteswap.h:75
static void volk_64u_byteswap_generic(uint64_t *intsToSwap, unsigned int num_points)
Definition: volk_64u_byteswap.h:128
static void volk_64u_byteswap_neon(uint64_t *intsToSwap, unsigned int num_points)
Definition: volk_64u_byteswap.h:283
#define __VOLK_PREFETCH(addr)
Definition: volk_common.h:62