/* * Copyright (c) 2018, Alliance for Open Media. All rights reserved. * * This source code is subject to the terms of the BSD 2 Clause License and * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License * was not distributed with this source code in the LICENSE file, you can * obtain it at www.aomedia.org/license/software. If the Alliance for Open * Media Patent License 1.0 was not distributed with this source code in the * PATENTS file, you can obtain it at www.aomedia.org/license/patent. */ #ifndef AOM_AOM_DSP_X86_TXFM_COMMON_AVX2_H_ #define AOM_AOM_DSP_X86_TXFM_COMMON_AVX2_H_ #include #include "aom/aom_integer.h" #include "aom_dsp/x86/synonyms.h" #ifdef __cplusplus extern "C" { #endif static inline __m256i pair_set_w16_epi16(int16_t a, int16_t b) { return _mm256_set1_epi32( (int32_t)(((uint16_t)(a)) | (((uint32_t)(uint16_t)(b)) << 16))); } static inline void btf_16_w16_avx2(const __m256i w0, const __m256i w1, __m256i *in0, __m256i *in1, const __m256i _r, const int32_t cos_bit) { __m256i t0 = _mm256_unpacklo_epi16(*in0, *in1); __m256i t1 = _mm256_unpackhi_epi16(*in0, *in1); __m256i u0 = _mm256_madd_epi16(t0, w0); __m256i u1 = _mm256_madd_epi16(t1, w0); __m256i v0 = _mm256_madd_epi16(t0, w1); __m256i v1 = _mm256_madd_epi16(t1, w1); __m256i a0 = _mm256_add_epi32(u0, _r); __m256i a1 = _mm256_add_epi32(u1, _r); __m256i b0 = _mm256_add_epi32(v0, _r); __m256i b1 = _mm256_add_epi32(v1, _r); __m256i c0 = _mm256_srai_epi32(a0, cos_bit); __m256i c1 = _mm256_srai_epi32(a1, cos_bit); __m256i d0 = _mm256_srai_epi32(b0, cos_bit); __m256i d1 = _mm256_srai_epi32(b1, cos_bit); *in0 = _mm256_packs_epi32(c0, c1); *in1 = _mm256_packs_epi32(d0, d1); } static inline void btf_16_adds_subs_avx2(__m256i *in0, __m256i *in1) { const __m256i _in0 = *in0; const __m256i _in1 = *in1; *in0 = _mm256_adds_epi16(_in0, _in1); *in1 = _mm256_subs_epi16(_in0, _in1); } static inline void btf_32_add_sub_avx2(__m256i *in0, __m256i *in1) { const __m256i _in0 = *in0; const __m256i _in1 = *in1; *in0 = _mm256_add_epi32(_in0, _in1); *in1 = _mm256_sub_epi32(_in0, _in1); } static inline void btf_16_adds_subs_out_avx2(__m256i *out0, __m256i *out1, __m256i in0, __m256i in1) { const __m256i _in0 = in0; const __m256i _in1 = in1; *out0 = _mm256_adds_epi16(_in0, _in1); *out1 = _mm256_subs_epi16(_in0, _in1); } static inline void btf_32_add_sub_out_avx2(__m256i *out0, __m256i *out1, __m256i in0, __m256i in1) { const __m256i _in0 = in0; const __m256i _in1 = in1; *out0 = _mm256_add_epi32(_in0, _in1); *out1 = _mm256_sub_epi32(_in0, _in1); } static inline __m256i load_16bit_to_16bit_avx2(const int16_t *a) { return _mm256_load_si256((const __m256i *)a); } static inline void load_buffer_16bit_to_16bit_avx2(const int16_t *in, int stride, __m256i *out, int out_size) { for (int i = 0; i < out_size; ++i) { out[i] = load_16bit_to_16bit_avx2(in + i * stride); } } static inline void load_buffer_16bit_to_16bit_flip_avx2(const int16_t *in, int stride, __m256i *out, int out_size) { for (int i = 0; i < out_size; ++i) { out[out_size - i - 1] = load_16bit_to_16bit_avx2(in + i * stride); } } static inline __m256i load_32bit_to_16bit_w16_avx2(const int32_t *a) { const __m256i a_low = _mm256_lddqu_si256((const __m256i *)a); const __m256i b = _mm256_packs_epi32(a_low, *(const __m256i *)(a + 8)); return _mm256_permute4x64_epi64(b, 0xD8); } static inline void load_buffer_32bit_to_16bit_w16_avx2(const int32_t *in, int stride, __m256i *out, int out_size) { for (int i = 0; i < out_size; ++i) { out[i] = load_32bit_to_16bit_w16_avx2(in + i * stride); } } static inline void transpose2_8x8_avx2(const __m256i *const in, __m256i *const out) { __m256i t[16], u[16]; // (1st, 2nd) ==> (lo, hi) // (0, 1) ==> (0, 1) // (2, 3) ==> (2, 3) // (4, 5) ==> (4, 5) // (6, 7) ==> (6, 7) for (int i = 0; i < 4; i++) { t[2 * i] = _mm256_unpacklo_epi16(in[2 * i], in[2 * i + 1]); t[2 * i + 1] = _mm256_unpackhi_epi16(in[2 * i], in[2 * i + 1]); } // (1st, 2nd) ==> (lo, hi) // (0, 2) ==> (0, 2) // (1, 3) ==> (1, 3) // (4, 6) ==> (4, 6) // (5, 7) ==> (5, 7) for (int i = 0; i < 2; i++) { u[i] = _mm256_unpacklo_epi32(t[i], t[i + 2]); u[i + 2] = _mm256_unpackhi_epi32(t[i], t[i + 2]); u[i + 4] = _mm256_unpacklo_epi32(t[i + 4], t[i + 6]); u[i + 6] = _mm256_unpackhi_epi32(t[i + 4], t[i + 6]); } // (1st, 2nd) ==> (lo, hi) // (0, 4) ==> (0, 1) // (1, 5) ==> (4, 5) // (2, 6) ==> (2, 3) // (3, 7) ==> (6, 7) for (int i = 0; i < 2; i++) { out[2 * i] = _mm256_unpacklo_epi64(u[2 * i], u[2 * i + 4]); out[2 * i + 1] = _mm256_unpackhi_epi64(u[2 * i], u[2 * i + 4]); out[2 * i + 4] = _mm256_unpacklo_epi64(u[2 * i + 1], u[2 * i + 5]); out[2 * i + 5] = _mm256_unpackhi_epi64(u[2 * i + 1], u[2 * i + 5]); } } static inline void transpose_16bit_16x16_avx2(const __m256i *const in, __m256i *const out) { __m256i t[16]; #define LOADL(idx) \ t[idx] = _mm256_castsi128_si256(_mm_load_si128((__m128i const *)&in[idx])); \ t[idx] = _mm256_inserti128_si256( \ t[idx], _mm_load_si128((__m128i const *)&in[idx + 8]), 1); #define LOADR(idx) \ t[8 + idx] = \ _mm256_castsi128_si256(_mm_load_si128((__m128i const *)&in[idx] + 1)); \ t[8 + idx] = _mm256_inserti128_si256( \ t[8 + idx], _mm_load_si128((__m128i const *)&in[idx + 8] + 1), 1); // load left 8x16 LOADL(0) LOADL(1) LOADL(2) LOADL(3) LOADL(4) LOADL(5) LOADL(6) LOADL(7) // load right 8x16 LOADR(0) LOADR(1) LOADR(2) LOADR(3) LOADR(4) LOADR(5) LOADR(6) LOADR(7) // get the top 16x8 result transpose2_8x8_avx2(t, out); // get the bottom 16x8 result transpose2_8x8_avx2(&t[8], &out[8]); } static inline void transpose_16bit_16x8_avx2(const __m256i *const in, __m256i *const out) { const __m256i a0 = _mm256_unpacklo_epi16(in[0], in[1]); const __m256i a1 = _mm256_unpacklo_epi16(in[2], in[3]); const __m256i a2 = _mm256_unpacklo_epi16(in[4], in[5]); const __m256i a3 = _mm256_unpacklo_epi16(in[6], in[7]); const __m256i a4 = _mm256_unpackhi_epi16(in[0], in[1]); const __m256i a5 = _mm256_unpackhi_epi16(in[2], in[3]); const __m256i a6 = _mm256_unpackhi_epi16(in[4], in[5]); const __m256i a7 = _mm256_unpackhi_epi16(in[6], in[7]); const __m256i b0 = _mm256_unpacklo_epi32(a0, a1); const __m256i b1 = _mm256_unpacklo_epi32(a2, a3); const __m256i b2 = _mm256_unpacklo_epi32(a4, a5); const __m256i b3 = _mm256_unpacklo_epi32(a6, a7); const __m256i b4 = _mm256_unpackhi_epi32(a0, a1); const __m256i b5 = _mm256_unpackhi_epi32(a2, a3); const __m256i b6 = _mm256_unpackhi_epi32(a4, a5); const __m256i b7 = _mm256_unpackhi_epi32(a6, a7); out[0] = _mm256_unpacklo_epi64(b0, b1); out[1] = _mm256_unpackhi_epi64(b0, b1); out[2] = _mm256_unpacklo_epi64(b4, b5); out[3] = _mm256_unpackhi_epi64(b4, b5); out[4] = _mm256_unpacklo_epi64(b2, b3); out[5] = _mm256_unpackhi_epi64(b2, b3); out[6] = _mm256_unpacklo_epi64(b6, b7); out[7] = _mm256_unpackhi_epi64(b6, b7); } static inline void flip_buf_avx2(__m256i *in, __m256i *out, int size) { for (int i = 0; i < size; ++i) { out[size - i - 1] = in[i]; } } static inline void round_shift_16bit_w16_avx2(__m256i *in, int size, int bit) { if (bit < 0) { bit = -bit; __m256i round = _mm256_set1_epi16(1 << (bit - 1)); for (int i = 0; i < size; ++i) { in[i] = _mm256_adds_epi16(in[i], round); in[i] = _mm256_srai_epi16(in[i], bit); } } else if (bit > 0) { for (int i = 0; i < size; ++i) { in[i] = _mm256_slli_epi16(in[i], bit); } } } static inline __m256i round_shift_32_avx2(__m256i vec, int bit) { __m256i tmp, round; round = _mm256_set1_epi32(1 << (bit - 1)); tmp = _mm256_add_epi32(vec, round); return _mm256_srai_epi32(tmp, bit); } static inline void round_shift_array_32_avx2(__m256i *input, __m256i *output, const int size, const int bit) { if (bit > 0) { int i; for (i = 0; i < size; i++) { output[i] = round_shift_32_avx2(input[i], bit); } } else { int i; for (i = 0; i < size; i++) { output[i] = _mm256_slli_epi32(input[i], -bit); } } } static inline void round_shift_rect_array_32_avx2(__m256i *input, __m256i *output, const int size, const int bit, const int val) { const __m256i sqrt2 = _mm256_set1_epi32(val); if (bit > 0) { int i; for (i = 0; i < size; i++) { const __m256i r0 = round_shift_32_avx2(input[i], bit); const __m256i r1 = _mm256_mullo_epi32(sqrt2, r0); output[i] = round_shift_32_avx2(r1, NewSqrt2Bits); } } else { int i; for (i = 0; i < size; i++) { const __m256i r0 = _mm256_slli_epi32(input[i], -bit); const __m256i r1 = _mm256_mullo_epi32(sqrt2, r0); output[i] = round_shift_32_avx2(r1, NewSqrt2Bits); } } } static inline __m256i scale_round_avx2(const __m256i a, const int scale) { const __m256i scale_rounding = pair_set_w16_epi16(scale, 1 << (NewSqrt2Bits - 1)); const __m256i b = _mm256_madd_epi16(a, scale_rounding); return _mm256_srai_epi32(b, NewSqrt2Bits); } static inline void store_rect_16bit_to_32bit_w8_avx2(const __m256i a, int32_t *const b) { const __m256i one = _mm256_set1_epi16(1); const __m256i a_lo = _mm256_unpacklo_epi16(a, one); const __m256i a_hi = _mm256_unpackhi_epi16(a, one); const __m256i b_lo = scale_round_avx2(a_lo, NewSqrt2); const __m256i b_hi = scale_round_avx2(a_hi, NewSqrt2); const __m256i temp = _mm256_permute2f128_si256(b_lo, b_hi, 0x31); _mm_store_si128((__m128i *)b, _mm256_castsi256_si128(b_lo)); _mm_store_si128((__m128i *)(b + 4), _mm256_castsi256_si128(b_hi)); _mm256_store_si256((__m256i *)(b + 64), temp); } static inline void store_rect_buffer_16bit_to_32bit_w8_avx2( const __m256i *const in, int32_t *const out, const int stride, const int out_size) { for (int i = 0; i < out_size; ++i) { store_rect_16bit_to_32bit_w8_avx2(in[i], out + i * stride); } } static inline void pack_reg(const __m128i *in1, const __m128i *in2, __m256i *out) { out[0] = _mm256_insertf128_si256(_mm256_castsi128_si256(in1[0]), in2[0], 0x1); out[1] = _mm256_insertf128_si256(_mm256_castsi128_si256(in1[1]), in2[1], 0x1); out[2] = _mm256_insertf128_si256(_mm256_castsi128_si256(in1[2]), in2[2], 0x1); out[3] = _mm256_insertf128_si256(_mm256_castsi128_si256(in1[3]), in2[3], 0x1); out[4] = _mm256_insertf128_si256(_mm256_castsi128_si256(in1[4]), in2[4], 0x1); out[5] = _mm256_insertf128_si256(_mm256_castsi128_si256(in1[5]), in2[5], 0x1); out[6] = _mm256_insertf128_si256(_mm256_castsi128_si256(in1[6]), in2[6], 0x1); out[7] = _mm256_insertf128_si256(_mm256_castsi128_si256(in1[7]), in2[7], 0x1); } static inline void extract_reg(const __m256i *in, __m128i *out1) { out1[0] = _mm256_castsi256_si128(in[0]); out1[1] = _mm256_castsi256_si128(in[1]); out1[2] = _mm256_castsi256_si128(in[2]); out1[3] = _mm256_castsi256_si128(in[3]); out1[4] = _mm256_castsi256_si128(in[4]); out1[5] = _mm256_castsi256_si128(in[5]); out1[6] = _mm256_castsi256_si128(in[6]); out1[7] = _mm256_castsi256_si128(in[7]); out1[8] = _mm256_extracti128_si256(in[0], 0x01); out1[9] = _mm256_extracti128_si256(in[1], 0x01); out1[10] = _mm256_extracti128_si256(in[2], 0x01); out1[11] = _mm256_extracti128_si256(in[3], 0x01); out1[12] = _mm256_extracti128_si256(in[4], 0x01); out1[13] = _mm256_extracti128_si256(in[5], 0x01); out1[14] = _mm256_extracti128_si256(in[6], 0x01); out1[15] = _mm256_extracti128_si256(in[7], 0x01); } #ifdef __cplusplus } #endif #endif // AOM_AOM_DSP_X86_TXFM_COMMON_AVX2_H_