| /* |
| * Copyright (c) 2017 The WebM project authors. All Rights Reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| #include <assert.h> |
| #include <immintrin.h> // AVX2 |
| |
| #include "./vp9_rtcd.h" |
| #include "vpx/vpx_integer.h" |
| #include "vpx_dsp/vpx_dsp_common.h" |
| #include "vpx_dsp/x86/bitdepth_conversion_avx2.h" |
| #include "vpx_dsp/x86/quantize_sse2.h" |
| |
| // Zero fill 8 positions in the output buffer. |
| static VPX_FORCE_INLINE void store_zero_tran_low(tran_low_t *a) { |
| const __m256i zero = _mm256_setzero_si256(); |
| #if CONFIG_VP9_HIGHBITDEPTH |
| _mm256_storeu_si256((__m256i *)(a), zero); |
| _mm256_storeu_si256((__m256i *)(a + 8), zero); |
| #else |
| _mm256_storeu_si256((__m256i *)(a), zero); |
| #endif |
| } |
| |
| static VPX_FORCE_INLINE void load_fp_values_avx2( |
| const int16_t *round_ptr, __m256i *round, const int16_t *quant_ptr, |
| __m256i *quant, const int16_t *dequant_ptr, __m256i *dequant) { |
| *round = _mm256_castsi128_si256(_mm_load_si128((const __m128i *)round_ptr)); |
| *round = _mm256_permute4x64_epi64(*round, 0x54); |
| *quant = _mm256_castsi128_si256(_mm_load_si128((const __m128i *)quant_ptr)); |
| *quant = _mm256_permute4x64_epi64(*quant, 0x54); |
| *dequant = |
| _mm256_castsi128_si256(_mm_load_si128((const __m128i *)dequant_ptr)); |
| *dequant = _mm256_permute4x64_epi64(*dequant, 0x54); |
| } |
| |
| static VPX_FORCE_INLINE __m256i get_max_lane_eob(const int16_t *iscan, |
| __m256i v_eobmax, |
| __m256i v_mask) { |
| const __m256i v_iscan = _mm256_loadu_si256((const __m256i *)iscan); |
| #if CONFIG_VP9_HIGHBITDEPTH |
| // typedef int32_t tran_low_t; |
| const __m256i v_iscan_perm = _mm256_permute4x64_epi64(v_iscan, 0xD8); |
| const __m256i v_iscan_plus1 = _mm256_sub_epi16(v_iscan_perm, v_mask); |
| #else |
| // typedef int16_t tran_low_t; |
| const __m256i v_iscan_plus1 = _mm256_sub_epi16(v_iscan, v_mask); |
| #endif |
| const __m256i v_nz_iscan = _mm256_and_si256(v_iscan_plus1, v_mask); |
| return _mm256_max_epi16(v_eobmax, v_nz_iscan); |
| } |
| |
| static VPX_FORCE_INLINE uint16_t get_max_eob(__m256i eob256) { |
| const __m256i eob_lo = eob256; |
| // Copy upper 128 to lower 128 |
| const __m256i eob_hi = _mm256_permute2x128_si256(eob256, eob256, 0X81); |
| __m256i eob = _mm256_max_epi16(eob_lo, eob_hi); |
| __m256i eob_s = _mm256_shuffle_epi32(eob, 0xe); |
| eob = _mm256_max_epi16(eob, eob_s); |
| eob_s = _mm256_shufflelo_epi16(eob, 0xe); |
| eob = _mm256_max_epi16(eob, eob_s); |
| eob_s = _mm256_shufflelo_epi16(eob, 1); |
| eob = _mm256_max_epi16(eob, eob_s); |
| #if defined(_MSC_VER) && (_MSC_VER < 1910) |
| return _mm_cvtsi128_si32(_mm256_extracti128_si256(eob, 0)) & 0xffff; |
| #else |
| return (uint16_t)_mm256_extract_epi16(eob, 0); |
| #endif |
| } |
| |
| static VPX_FORCE_INLINE void quantize_fp_16( |
| const __m256i *round, const __m256i *quant, const __m256i *dequant, |
| const __m256i *thr, const tran_low_t *coeff_ptr, const int16_t *iscan_ptr, |
| tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr, __m256i *eob_max) { |
| const __m256i coeff = load_tran_low(coeff_ptr); |
| const __m256i abs_coeff = _mm256_abs_epi16(coeff); |
| const int32_t nzflag = |
| _mm256_movemask_epi8(_mm256_cmpgt_epi16(abs_coeff, *thr)); |
| |
| if (nzflag) { |
| const __m256i tmp_rnd = _mm256_adds_epi16(abs_coeff, *round); |
| const __m256i abs_qcoeff = _mm256_mulhi_epi16(tmp_rnd, *quant); |
| const __m256i qcoeff = _mm256_sign_epi16(abs_qcoeff, coeff); |
| const __m256i dqcoeff = _mm256_mullo_epi16(qcoeff, *dequant); |
| const __m256i nz_mask = |
| _mm256_cmpgt_epi16(abs_qcoeff, _mm256_setzero_si256()); |
| store_tran_low(qcoeff, qcoeff_ptr); |
| store_tran_low(dqcoeff, dqcoeff_ptr); |
| |
| *eob_max = get_max_lane_eob(iscan_ptr, *eob_max, nz_mask); |
| } else { |
| store_zero_tran_low(qcoeff_ptr); |
| store_zero_tran_low(dqcoeff_ptr); |
| } |
| } |
| |
| void vp9_quantize_fp_avx2(const tran_low_t *coeff_ptr, intptr_t n_coeffs, |
| const int16_t *round_ptr, const int16_t *quant_ptr, |
| tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr, |
| const int16_t *dequant_ptr, uint16_t *eob_ptr, |
| const int16_t *scan, const int16_t *iscan) { |
| __m256i round, quant, dequant, thr; |
| __m256i eob_max = _mm256_setzero_si256(); |
| (void)scan; |
| |
| coeff_ptr += n_coeffs; |
| iscan += n_coeffs; |
| qcoeff_ptr += n_coeffs; |
| dqcoeff_ptr += n_coeffs; |
| n_coeffs = -n_coeffs; |
| |
| // Setup global values |
| load_fp_values_avx2(round_ptr, &round, quant_ptr, &quant, dequant_ptr, |
| &dequant); |
| thr = _mm256_setzero_si256(); |
| |
| quantize_fp_16(&round, &quant, &dequant, &thr, coeff_ptr + n_coeffs, |
| iscan + n_coeffs, qcoeff_ptr + n_coeffs, |
| dqcoeff_ptr + n_coeffs, &eob_max); |
| |
| n_coeffs += 8 * 2; |
| |
| // remove dc constants |
| dequant = _mm256_permute2x128_si256(dequant, dequant, 0x31); |
| quant = _mm256_permute2x128_si256(quant, quant, 0x31); |
| round = _mm256_permute2x128_si256(round, round, 0x31); |
| thr = _mm256_srai_epi16(dequant, 1); |
| |
| // AC only loop |
| while (n_coeffs < 0) { |
| quantize_fp_16(&round, &quant, &dequant, &thr, coeff_ptr + n_coeffs, |
| iscan + n_coeffs, qcoeff_ptr + n_coeffs, |
| dqcoeff_ptr + n_coeffs, &eob_max); |
| n_coeffs += 8 * 2; |
| } |
| |
| *eob_ptr = get_max_eob(eob_max); |
| } |
| |
| // Enable this flag when matching the optimized code to |
| // vp9_quantize_fp_32x32_c(). Disabled, the optimized code will match the |
| // existing ssse3 code and quantize_fp_32x32_nz_c(). |
| // |
| // #define MATCH_VP9_QUANTIZE_FP_32X32_C |
| |
| #ifndef MATCH_VP9_QUANTIZE_FP_32X32_C |
| static VPX_FORCE_INLINE void quantize_fp_32x32_16_no_nzflag( |
| const __m256i *round, const __m256i *quant, const __m256i *dequant, |
| const __m256i *thr, const tran_low_t *coeff_ptr, const int16_t *iscan_ptr, |
| tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr, __m256i *eob_max) { |
| const __m256i coeff = load_tran_low(coeff_ptr); |
| const __m256i abs_coeff = _mm256_abs_epi16(coeff); |
| const __m256i tmp_rnd = _mm256_adds_epi16(abs_coeff, *round); |
| const __m256i abs_qcoeff = _mm256_mulhi_epi16(tmp_rnd, *quant); |
| const __m256i qcoeff = _mm256_sign_epi16(abs_qcoeff, coeff); |
| const __m256i abs_dqcoeff = |
| _mm256_srli_epi16(_mm256_mullo_epi16(abs_qcoeff, *dequant), 1); |
| const __m256i dqcoeff = _mm256_sign_epi16(abs_dqcoeff, coeff); |
| const __m256i nz_mask = |
| _mm256_cmpgt_epi16(abs_qcoeff, _mm256_setzero_si256()); |
| store_tran_low(qcoeff, qcoeff_ptr); |
| store_tran_low(dqcoeff, dqcoeff_ptr); |
| |
| *eob_max = get_max_lane_eob(iscan_ptr, *eob_max, nz_mask); |
| (void)thr; |
| } |
| #endif |
| |
| static VPX_FORCE_INLINE void quantize_fp_32x32_16( |
| const __m256i *round, const __m256i *quant, const __m256i *dequant, |
| const __m256i *thr, const tran_low_t *coeff_ptr, const int16_t *iscan_ptr, |
| tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr, __m256i *eob_max) { |
| const __m256i coeff = load_tran_low(coeff_ptr); |
| const __m256i abs_coeff = _mm256_abs_epi16(coeff); |
| const __m256i thr_mask = _mm256_cmpgt_epi16(abs_coeff, *thr); |
| const int32_t nzflag = _mm256_movemask_epi8(thr_mask); |
| |
| if (nzflag) { |
| #ifdef MATCH_VP9_QUANTIZE_FP_32X32_C |
| const __m256i tmp_rnd = |
| _mm256_and_si256(_mm256_adds_epi16(abs_coeff, *round), thr_mask); |
| #else |
| const __m256i tmp_rnd = _mm256_adds_epi16(abs_coeff, *round); |
| #endif |
| const __m256i abs_qcoeff = _mm256_mulhi_epi16(tmp_rnd, *quant); |
| const __m256i qcoeff = _mm256_sign_epi16(abs_qcoeff, coeff); |
| const __m256i abs_dqcoeff = |
| _mm256_srli_epi16(_mm256_mullo_epi16(abs_qcoeff, *dequant), 1); |
| const __m256i dqcoeff = _mm256_sign_epi16(abs_dqcoeff, coeff); |
| const __m256i nz_mask = |
| _mm256_cmpgt_epi16(abs_qcoeff, _mm256_setzero_si256()); |
| store_tran_low(qcoeff, qcoeff_ptr); |
| store_tran_low(dqcoeff, dqcoeff_ptr); |
| |
| *eob_max = get_max_lane_eob(iscan_ptr, *eob_max, nz_mask); |
| } else { |
| store_zero_tran_low(qcoeff_ptr); |
| store_zero_tran_low(dqcoeff_ptr); |
| } |
| } |
| |
| void vp9_quantize_fp_32x32_avx2(const tran_low_t *coeff_ptr, intptr_t n_coeffs, |
| const int16_t *round_ptr, |
| const int16_t *quant_ptr, |
| tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr, |
| const int16_t *dequant_ptr, uint16_t *eob_ptr, |
| const int16_t *scan, const int16_t *iscan) { |
| __m256i round, quant, dequant, thr; |
| __m256i eob_max = _mm256_setzero_si256(); |
| (void)scan; |
| |
| coeff_ptr += n_coeffs; |
| iscan += n_coeffs; |
| qcoeff_ptr += n_coeffs; |
| dqcoeff_ptr += n_coeffs; |
| n_coeffs = -n_coeffs; |
| |
| // Setup global values |
| load_fp_values_avx2(round_ptr, &round, quant_ptr, &quant, dequant_ptr, |
| &dequant); |
| thr = _mm256_srli_epi16(dequant, 2); |
| quant = _mm256_slli_epi16(quant, 1); |
| { |
| const __m256i rnd = _mm256_set1_epi16((int16_t)1); |
| round = _mm256_add_epi16(round, rnd); |
| round = _mm256_srai_epi16(round, 1); |
| } |
| |
| #ifdef MATCH_VP9_QUANTIZE_FP_32X32_C |
| // Subtracting 1 here eliminates a _mm256_cmpeq_epi16() instruction when |
| // calculating the zbin mask. |
| thr = _mm256_sub_epi16(thr, _mm256_set1_epi16(1)); |
| quantize_fp_32x32_16(&round, &quant, &dequant, &thr, coeff_ptr + n_coeffs, |
| iscan + n_coeffs, qcoeff_ptr + n_coeffs, |
| dqcoeff_ptr + n_coeffs, &eob_max); |
| #else |
| quantize_fp_32x32_16_no_nzflag( |
| &round, &quant, &dequant, &thr, coeff_ptr + n_coeffs, iscan + n_coeffs, |
| qcoeff_ptr + n_coeffs, dqcoeff_ptr + n_coeffs, &eob_max); |
| #endif |
| |
| n_coeffs += 8 * 2; |
| |
| // remove dc constants |
| dequant = _mm256_permute2x128_si256(dequant, dequant, 0x31); |
| quant = _mm256_permute2x128_si256(quant, quant, 0x31); |
| round = _mm256_permute2x128_si256(round, round, 0x31); |
| thr = _mm256_permute2x128_si256(thr, thr, 0x31); |
| |
| // AC only loop |
| while (n_coeffs < 0) { |
| quantize_fp_32x32_16(&round, &quant, &dequant, &thr, coeff_ptr + n_coeffs, |
| iscan + n_coeffs, qcoeff_ptr + n_coeffs, |
| dqcoeff_ptr + n_coeffs, &eob_max); |
| n_coeffs += 8 * 2; |
| } |
| |
| *eob_ptr = get_max_eob(eob_max); |
| } |
| |
| #if CONFIG_VP9_HIGHBITDEPTH |
| static VPX_FORCE_INLINE __m256i mm256_mul_shift_epi32_logscale(const __m256i *x, |
| const __m256i *y, |
| int log_scale) { |
| __m256i prod_lo = _mm256_mul_epi32(*x, *y); |
| __m256i prod_hi = _mm256_srli_epi64(*x, 32); |
| const __m256i mult_hi = _mm256_srli_epi64(*y, 32); |
| const __m256i mask = _mm256_set_epi32(0, -1, 0, -1, 0, -1, 0, -1); |
| prod_hi = _mm256_mul_epi32(prod_hi, mult_hi); |
| prod_lo = _mm256_srli_epi64(prod_lo, 16 - log_scale); |
| prod_lo = _mm256_and_si256(prod_lo, mask); |
| prod_hi = _mm256_srli_epi64(prod_hi, 16 - log_scale); |
| prod_hi = _mm256_slli_epi64(prod_hi, 32); |
| return _mm256_or_si256(prod_lo, prod_hi); |
| } |
| |
| static VPX_FORCE_INLINE __m256i highbd_init_256(const int16_t *val_ptr) { |
| const __m128i v = _mm_load_si128((const __m128i *)val_ptr); |
| const __m128i zero = _mm_setzero_si128(); |
| const __m128i dc = _mm_unpacklo_epi16(v, zero); |
| const __m128i ac = _mm_unpackhi_epi16(v, zero); |
| return _mm256_insertf128_si256(_mm256_castsi128_si256(dc), ac, 1); |
| } |
| |
| static VPX_FORCE_INLINE void highbd_load_fp_values( |
| const int16_t *round_ptr, __m256i *round, const int16_t *quant_ptr, |
| __m256i *quant, const int16_t *dequant_ptr, __m256i *dequant) { |
| *round = highbd_init_256(round_ptr); |
| *quant = highbd_init_256(quant_ptr); |
| *dequant = highbd_init_256(dequant_ptr); |
| } |
| |
| static VPX_FORCE_INLINE __m256i highbd_get_max_lane_eob( |
| const int16_t *iscan_ptr, __m256i eobmax, __m256i nz_mask) { |
| const __m256i packed_nz_mask = _mm256_packs_epi32(nz_mask, nz_mask); |
| const __m256i packed_nz_mask_perm = |
| _mm256_permute4x64_epi64(packed_nz_mask, 0xD8); |
| const __m256i iscan = |
| _mm256_castsi128_si256(_mm_loadu_si128((const __m128i *)iscan_ptr)); |
| const __m256i iscan_plus1 = _mm256_sub_epi16(iscan, packed_nz_mask_perm); |
| const __m256i nz_iscan = _mm256_and_si256(iscan_plus1, packed_nz_mask_perm); |
| return _mm256_max_epi16(eobmax, nz_iscan); |
| } |
| |
| static VPX_FORCE_INLINE void highbd_quantize_fp( |
| const __m256i *round, const __m256i *quant, const __m256i *dequant, |
| const tran_low_t *coeff_ptr, const int16_t *iscan_ptr, |
| tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr, __m256i *eob) { |
| const __m256i coeff = _mm256_loadu_si256((const __m256i *)coeff_ptr); |
| const __m256i abs_coeff = _mm256_abs_epi32(coeff); |
| const __m256i tmp_rnd = _mm256_add_epi32(abs_coeff, *round); |
| const __m256i abs_q = mm256_mul_shift_epi32_logscale(&tmp_rnd, quant, 0); |
| const __m256i abs_dq = _mm256_mullo_epi32(abs_q, *dequant); |
| const __m256i q = _mm256_sign_epi32(abs_q, coeff); |
| const __m256i dq = _mm256_sign_epi32(abs_dq, coeff); |
| const __m256i nz_mask = _mm256_cmpgt_epi32(abs_q, _mm256_setzero_si256()); |
| |
| _mm256_storeu_si256((__m256i *)qcoeff_ptr, q); |
| _mm256_storeu_si256((__m256i *)dqcoeff_ptr, dq); |
| |
| *eob = highbd_get_max_lane_eob(iscan_ptr, *eob, nz_mask); |
| } |
| |
| void vp9_highbd_quantize_fp_avx2(const tran_low_t *coeff_ptr, intptr_t n_coeffs, |
| const int16_t *round_ptr, |
| const int16_t *quant_ptr, |
| tran_low_t *qcoeff_ptr, |
| tran_low_t *dqcoeff_ptr, |
| const int16_t *dequant_ptr, uint16_t *eob_ptr, |
| const int16_t *scan, const int16_t *iscan) { |
| const int step = 8; |
| __m256i round, quant, dequant; |
| __m256i eob_max = _mm256_setzero_si256(); |
| (void)scan; |
| |
| coeff_ptr += n_coeffs; |
| iscan += n_coeffs; |
| qcoeff_ptr += n_coeffs; |
| dqcoeff_ptr += n_coeffs; |
| n_coeffs = -n_coeffs; |
| |
| // Setup global values |
| highbd_load_fp_values(round_ptr, &round, quant_ptr, &quant, dequant_ptr, |
| &dequant); |
| |
| highbd_quantize_fp(&round, &quant, &dequant, coeff_ptr + n_coeffs, |
| iscan + n_coeffs, qcoeff_ptr + n_coeffs, |
| dqcoeff_ptr + n_coeffs, &eob_max); |
| |
| n_coeffs += step; |
| |
| // remove dc constants |
| dequant = _mm256_permute2x128_si256(dequant, dequant, 0x31); |
| quant = _mm256_permute2x128_si256(quant, quant, 0x31); |
| round = _mm256_permute2x128_si256(round, round, 0x31); |
| |
| // AC only loop |
| while (n_coeffs < 0) { |
| highbd_quantize_fp(&round, &quant, &dequant, coeff_ptr + n_coeffs, |
| iscan + n_coeffs, qcoeff_ptr + n_coeffs, |
| dqcoeff_ptr + n_coeffs, &eob_max); |
| n_coeffs += step; |
| } |
| |
| *eob_ptr = get_max_eob(eob_max); |
| } |
| |
| static VPX_FORCE_INLINE void highbd_quantize_fp_32x32( |
| const __m256i *round, const __m256i *quant, const __m256i *dequant, |
| const __m256i *thr, const tran_low_t *coeff_ptr, const int16_t *iscan_ptr, |
| tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr, __m256i *eob) { |
| const __m256i coeff = _mm256_loadu_si256((const __m256i *)coeff_ptr); |
| const __m256i abs_coeff = _mm256_abs_epi32(coeff); |
| const __m256i thr_mask = _mm256_cmpgt_epi32(abs_coeff, *thr); |
| const __m256i tmp_rnd = |
| _mm256_and_si256(_mm256_add_epi32(abs_coeff, *round), thr_mask); |
| const __m256i abs_q = mm256_mul_shift_epi32_logscale(&tmp_rnd, quant, 0); |
| const __m256i abs_dq = |
| _mm256_srli_epi32(_mm256_mullo_epi32(abs_q, *dequant), 1); |
| const __m256i q = _mm256_sign_epi32(abs_q, coeff); |
| const __m256i dq = _mm256_sign_epi32(abs_dq, coeff); |
| const __m256i nz_mask = _mm256_cmpgt_epi32(abs_q, _mm256_setzero_si256()); |
| |
| _mm256_storeu_si256((__m256i *)qcoeff_ptr, q); |
| _mm256_storeu_si256((__m256i *)dqcoeff_ptr, dq); |
| |
| *eob = highbd_get_max_lane_eob(iscan_ptr, *eob, nz_mask); |
| } |
| |
| void vp9_highbd_quantize_fp_32x32_avx2( |
| const tran_low_t *coeff_ptr, intptr_t n_coeffs, const int16_t *round_ptr, |
| const int16_t *quant_ptr, tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr, |
| const int16_t *dequant_ptr, uint16_t *eob_ptr, const int16_t *scan, |
| const int16_t *iscan) { |
| const int step = 8; |
| __m256i round, quant, dequant, thr; |
| __m256i eob_max = _mm256_setzero_si256(); |
| (void)scan; |
| |
| coeff_ptr += n_coeffs; |
| iscan += n_coeffs; |
| qcoeff_ptr += n_coeffs; |
| dqcoeff_ptr += n_coeffs; |
| n_coeffs = -n_coeffs; |
| |
| // Setup global values |
| highbd_load_fp_values(round_ptr, &round, quant_ptr, &quant, dequant_ptr, |
| &dequant); |
| thr = _mm256_srli_epi32(dequant, 2); |
| // Subtracting 1 here eliminates a _mm256_cmpeq_epi32() instruction when |
| // calculating the zbin mask. |
| thr = _mm256_sub_epi32(thr, _mm256_set1_epi32(1)); |
| quant = _mm256_slli_epi32(quant, 1); |
| round = _mm256_srai_epi32(_mm256_add_epi32(round, _mm256_set1_epi32(1)), 1); |
| |
| highbd_quantize_fp_32x32(&round, &quant, &dequant, &thr, coeff_ptr + n_coeffs, |
| iscan + n_coeffs, qcoeff_ptr + n_coeffs, |
| dqcoeff_ptr + n_coeffs, &eob_max); |
| |
| n_coeffs += step; |
| |
| // remove dc constants |
| dequant = _mm256_permute2x128_si256(dequant, dequant, 0x31); |
| quant = _mm256_permute2x128_si256(quant, quant, 0x31); |
| round = _mm256_permute2x128_si256(round, round, 0x31); |
| thr = _mm256_permute2x128_si256(thr, thr, 0x31); |
| |
| // AC only loop |
| while (n_coeffs < 0) { |
| highbd_quantize_fp_32x32( |
| &round, &quant, &dequant, &thr, coeff_ptr + n_coeffs, iscan + n_coeffs, |
| qcoeff_ptr + n_coeffs, dqcoeff_ptr + n_coeffs, &eob_max); |
| n_coeffs += step; |
| } |
| |
| *eob_ptr = get_max_eob(eob_max); |
| } |
| #endif // CONFIG_VP9_HIGHBITDEPTH |
