| /* |
| * Copyright (c) 2014 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> |
| #if defined(_MSC_VER) && _MSC_VER <= 1500 |
| // Need to include math.h before calling tmmintrin.h/intrin.h |
| // in certain versions of MSVS. |
| #include <math.h> |
| #endif |
| #include <tmmintrin.h> // SSSE3 |
| |
| #include "./vp10_rtcd.h" |
| #include "vpx_dsp/x86/inv_txfm_sse2.h" |
| #include "vpx_dsp/x86/txfm_common_sse2.h" |
| |
| void vp10_fdct8x8_quant_ssse3(const int16_t *input, int stride, |
| int16_t* coeff_ptr, intptr_t n_coeffs, |
| int skip_block, const int16_t* zbin_ptr, |
| const int16_t* round_ptr, const int16_t* quant_ptr, |
| const int16_t* quant_shift_ptr, |
| int16_t* qcoeff_ptr, |
| int16_t* dqcoeff_ptr, const int16_t* dequant_ptr, |
| uint16_t* eob_ptr, |
| const int16_t* scan_ptr, |
| const int16_t* iscan_ptr) { |
| __m128i zero; |
| int pass; |
| // Constants |
| // When we use them, in one case, they are all the same. In all others |
| // it's a pair of them that we need to repeat four times. This is done |
| // by constructing the 32 bit constant corresponding to that pair. |
| const __m128i k__dual_p16_p16 = dual_set_epi16(23170, 23170); |
| const __m128i k__cospi_p16_p16 = _mm_set1_epi16((int16_t)cospi_16_64); |
| const __m128i k__cospi_p16_m16 = pair_set_epi16(cospi_16_64, -cospi_16_64); |
| const __m128i k__cospi_p24_p08 = pair_set_epi16(cospi_24_64, cospi_8_64); |
| const __m128i k__cospi_m08_p24 = pair_set_epi16(-cospi_8_64, cospi_24_64); |
| const __m128i k__cospi_p28_p04 = pair_set_epi16(cospi_28_64, cospi_4_64); |
| const __m128i k__cospi_m04_p28 = pair_set_epi16(-cospi_4_64, cospi_28_64); |
| const __m128i k__cospi_p12_p20 = pair_set_epi16(cospi_12_64, cospi_20_64); |
| const __m128i k__cospi_m20_p12 = pair_set_epi16(-cospi_20_64, cospi_12_64); |
| const __m128i k__DCT_CONST_ROUNDING = _mm_set1_epi32(DCT_CONST_ROUNDING); |
| // Load input |
| __m128i in0 = _mm_load_si128((const __m128i *)(input + 0 * stride)); |
| __m128i in1 = _mm_load_si128((const __m128i *)(input + 1 * stride)); |
| __m128i in2 = _mm_load_si128((const __m128i *)(input + 2 * stride)); |
| __m128i in3 = _mm_load_si128((const __m128i *)(input + 3 * stride)); |
| __m128i in4 = _mm_load_si128((const __m128i *)(input + 4 * stride)); |
| __m128i in5 = _mm_load_si128((const __m128i *)(input + 5 * stride)); |
| __m128i in6 = _mm_load_si128((const __m128i *)(input + 6 * stride)); |
| __m128i in7 = _mm_load_si128((const __m128i *)(input + 7 * stride)); |
| __m128i *in[8]; |
| int index = 0; |
| |
| (void)scan_ptr; |
| (void)zbin_ptr; |
| (void)quant_shift_ptr; |
| (void)coeff_ptr; |
| |
| // Pre-condition input (shift by two) |
| in0 = _mm_slli_epi16(in0, 2); |
| in1 = _mm_slli_epi16(in1, 2); |
| in2 = _mm_slli_epi16(in2, 2); |
| in3 = _mm_slli_epi16(in3, 2); |
| in4 = _mm_slli_epi16(in4, 2); |
| in5 = _mm_slli_epi16(in5, 2); |
| in6 = _mm_slli_epi16(in6, 2); |
| in7 = _mm_slli_epi16(in7, 2); |
| |
| in[0] = &in0; |
| in[1] = &in1; |
| in[2] = &in2; |
| in[3] = &in3; |
| in[4] = &in4; |
| in[5] = &in5; |
| in[6] = &in6; |
| in[7] = &in7; |
| |
| // We do two passes, first the columns, then the rows. The results of the |
| // first pass are transposed so that the same column code can be reused. The |
| // results of the second pass are also transposed so that the rows (processed |
| // as columns) are put back in row positions. |
| for (pass = 0; pass < 2; pass++) { |
| // To store results of each pass before the transpose. |
| __m128i res0, res1, res2, res3, res4, res5, res6, res7; |
| // Add/subtract |
| const __m128i q0 = _mm_add_epi16(in0, in7); |
| const __m128i q1 = _mm_add_epi16(in1, in6); |
| const __m128i q2 = _mm_add_epi16(in2, in5); |
| const __m128i q3 = _mm_add_epi16(in3, in4); |
| const __m128i q4 = _mm_sub_epi16(in3, in4); |
| const __m128i q5 = _mm_sub_epi16(in2, in5); |
| const __m128i q6 = _mm_sub_epi16(in1, in6); |
| const __m128i q7 = _mm_sub_epi16(in0, in7); |
| // Work on first four results |
| { |
| // Add/subtract |
| const __m128i r0 = _mm_add_epi16(q0, q3); |
| const __m128i r1 = _mm_add_epi16(q1, q2); |
| const __m128i r2 = _mm_sub_epi16(q1, q2); |
| const __m128i r3 = _mm_sub_epi16(q0, q3); |
| // Interleave to do the multiply by constants which gets us into 32bits |
| const __m128i t0 = _mm_unpacklo_epi16(r0, r1); |
| const __m128i t1 = _mm_unpackhi_epi16(r0, r1); |
| const __m128i t2 = _mm_unpacklo_epi16(r2, r3); |
| const __m128i t3 = _mm_unpackhi_epi16(r2, r3); |
| |
| const __m128i u0 = _mm_madd_epi16(t0, k__cospi_p16_p16); |
| const __m128i u1 = _mm_madd_epi16(t1, k__cospi_p16_p16); |
| const __m128i u2 = _mm_madd_epi16(t0, k__cospi_p16_m16); |
| const __m128i u3 = _mm_madd_epi16(t1, k__cospi_p16_m16); |
| |
| const __m128i u4 = _mm_madd_epi16(t2, k__cospi_p24_p08); |
| const __m128i u5 = _mm_madd_epi16(t3, k__cospi_p24_p08); |
| const __m128i u6 = _mm_madd_epi16(t2, k__cospi_m08_p24); |
| const __m128i u7 = _mm_madd_epi16(t3, k__cospi_m08_p24); |
| // dct_const_round_shift |
| |
| const __m128i v0 = _mm_add_epi32(u0, k__DCT_CONST_ROUNDING); |
| const __m128i v1 = _mm_add_epi32(u1, k__DCT_CONST_ROUNDING); |
| const __m128i v2 = _mm_add_epi32(u2, k__DCT_CONST_ROUNDING); |
| const __m128i v3 = _mm_add_epi32(u3, k__DCT_CONST_ROUNDING); |
| |
| const __m128i v4 = _mm_add_epi32(u4, k__DCT_CONST_ROUNDING); |
| const __m128i v5 = _mm_add_epi32(u5, k__DCT_CONST_ROUNDING); |
| const __m128i v6 = _mm_add_epi32(u6, k__DCT_CONST_ROUNDING); |
| const __m128i v7 = _mm_add_epi32(u7, k__DCT_CONST_ROUNDING); |
| |
| const __m128i w0 = _mm_srai_epi32(v0, DCT_CONST_BITS); |
| const __m128i w1 = _mm_srai_epi32(v1, DCT_CONST_BITS); |
| const __m128i w2 = _mm_srai_epi32(v2, DCT_CONST_BITS); |
| const __m128i w3 = _mm_srai_epi32(v3, DCT_CONST_BITS); |
| |
| const __m128i w4 = _mm_srai_epi32(v4, DCT_CONST_BITS); |
| const __m128i w5 = _mm_srai_epi32(v5, DCT_CONST_BITS); |
| const __m128i w6 = _mm_srai_epi32(v6, DCT_CONST_BITS); |
| const __m128i w7 = _mm_srai_epi32(v7, DCT_CONST_BITS); |
| // Combine |
| |
| res0 = _mm_packs_epi32(w0, w1); |
| res4 = _mm_packs_epi32(w2, w3); |
| res2 = _mm_packs_epi32(w4, w5); |
| res6 = _mm_packs_epi32(w6, w7); |
| } |
| // Work on next four results |
| { |
| // Interleave to do the multiply by constants which gets us into 32bits |
| const __m128i d0 = _mm_sub_epi16(q6, q5); |
| const __m128i d1 = _mm_add_epi16(q6, q5); |
| const __m128i r0 = _mm_mulhrs_epi16(d0, k__dual_p16_p16); |
| const __m128i r1 = _mm_mulhrs_epi16(d1, k__dual_p16_p16); |
| |
| // Add/subtract |
| const __m128i x0 = _mm_add_epi16(q4, r0); |
| const __m128i x1 = _mm_sub_epi16(q4, r0); |
| const __m128i x2 = _mm_sub_epi16(q7, r1); |
| const __m128i x3 = _mm_add_epi16(q7, r1); |
| // Interleave to do the multiply by constants which gets us into 32bits |
| const __m128i t0 = _mm_unpacklo_epi16(x0, x3); |
| const __m128i t1 = _mm_unpackhi_epi16(x0, x3); |
| const __m128i t2 = _mm_unpacklo_epi16(x1, x2); |
| const __m128i t3 = _mm_unpackhi_epi16(x1, x2); |
| const __m128i u0 = _mm_madd_epi16(t0, k__cospi_p28_p04); |
| const __m128i u1 = _mm_madd_epi16(t1, k__cospi_p28_p04); |
| const __m128i u2 = _mm_madd_epi16(t0, k__cospi_m04_p28); |
| const __m128i u3 = _mm_madd_epi16(t1, k__cospi_m04_p28); |
| const __m128i u4 = _mm_madd_epi16(t2, k__cospi_p12_p20); |
| const __m128i u5 = _mm_madd_epi16(t3, k__cospi_p12_p20); |
| const __m128i u6 = _mm_madd_epi16(t2, k__cospi_m20_p12); |
| const __m128i u7 = _mm_madd_epi16(t3, k__cospi_m20_p12); |
| // dct_const_round_shift |
| const __m128i v0 = _mm_add_epi32(u0, k__DCT_CONST_ROUNDING); |
| const __m128i v1 = _mm_add_epi32(u1, k__DCT_CONST_ROUNDING); |
| const __m128i v2 = _mm_add_epi32(u2, k__DCT_CONST_ROUNDING); |
| const __m128i v3 = _mm_add_epi32(u3, k__DCT_CONST_ROUNDING); |
| const __m128i v4 = _mm_add_epi32(u4, k__DCT_CONST_ROUNDING); |
| const __m128i v5 = _mm_add_epi32(u5, k__DCT_CONST_ROUNDING); |
| const __m128i v6 = _mm_add_epi32(u6, k__DCT_CONST_ROUNDING); |
| const __m128i v7 = _mm_add_epi32(u7, k__DCT_CONST_ROUNDING); |
| const __m128i w0 = _mm_srai_epi32(v0, DCT_CONST_BITS); |
| const __m128i w1 = _mm_srai_epi32(v1, DCT_CONST_BITS); |
| const __m128i w2 = _mm_srai_epi32(v2, DCT_CONST_BITS); |
| const __m128i w3 = _mm_srai_epi32(v3, DCT_CONST_BITS); |
| const __m128i w4 = _mm_srai_epi32(v4, DCT_CONST_BITS); |
| const __m128i w5 = _mm_srai_epi32(v5, DCT_CONST_BITS); |
| const __m128i w6 = _mm_srai_epi32(v6, DCT_CONST_BITS); |
| const __m128i w7 = _mm_srai_epi32(v7, DCT_CONST_BITS); |
| // Combine |
| res1 = _mm_packs_epi32(w0, w1); |
| res7 = _mm_packs_epi32(w2, w3); |
| res5 = _mm_packs_epi32(w4, w5); |
| res3 = _mm_packs_epi32(w6, w7); |
| } |
| // Transpose the 8x8. |
| { |
| // 00 01 02 03 04 05 06 07 |
| // 10 11 12 13 14 15 16 17 |
| // 20 21 22 23 24 25 26 27 |
| // 30 31 32 33 34 35 36 37 |
| // 40 41 42 43 44 45 46 47 |
| // 50 51 52 53 54 55 56 57 |
| // 60 61 62 63 64 65 66 67 |
| // 70 71 72 73 74 75 76 77 |
| const __m128i tr0_0 = _mm_unpacklo_epi16(res0, res1); |
| const __m128i tr0_1 = _mm_unpacklo_epi16(res2, res3); |
| const __m128i tr0_2 = _mm_unpackhi_epi16(res0, res1); |
| const __m128i tr0_3 = _mm_unpackhi_epi16(res2, res3); |
| const __m128i tr0_4 = _mm_unpacklo_epi16(res4, res5); |
| const __m128i tr0_5 = _mm_unpacklo_epi16(res6, res7); |
| const __m128i tr0_6 = _mm_unpackhi_epi16(res4, res5); |
| const __m128i tr0_7 = _mm_unpackhi_epi16(res6, res7); |
| // 00 10 01 11 02 12 03 13 |
| // 20 30 21 31 22 32 23 33 |
| // 04 14 05 15 06 16 07 17 |
| // 24 34 25 35 26 36 27 37 |
| // 40 50 41 51 42 52 43 53 |
| // 60 70 61 71 62 72 63 73 |
| // 54 54 55 55 56 56 57 57 |
| // 64 74 65 75 66 76 67 77 |
| const __m128i tr1_0 = _mm_unpacklo_epi32(tr0_0, tr0_1); |
| const __m128i tr1_1 = _mm_unpacklo_epi32(tr0_2, tr0_3); |
| const __m128i tr1_2 = _mm_unpackhi_epi32(tr0_0, tr0_1); |
| const __m128i tr1_3 = _mm_unpackhi_epi32(tr0_2, tr0_3); |
| const __m128i tr1_4 = _mm_unpacklo_epi32(tr0_4, tr0_5); |
| const __m128i tr1_5 = _mm_unpacklo_epi32(tr0_6, tr0_7); |
| const __m128i tr1_6 = _mm_unpackhi_epi32(tr0_4, tr0_5); |
| const __m128i tr1_7 = _mm_unpackhi_epi32(tr0_6, tr0_7); |
| // 00 10 20 30 01 11 21 31 |
| // 40 50 60 70 41 51 61 71 |
| // 02 12 22 32 03 13 23 33 |
| // 42 52 62 72 43 53 63 73 |
| // 04 14 24 34 05 15 21 36 |
| // 44 54 64 74 45 55 61 76 |
| // 06 16 26 36 07 17 27 37 |
| // 46 56 66 76 47 57 67 77 |
| in0 = _mm_unpacklo_epi64(tr1_0, tr1_4); |
| in1 = _mm_unpackhi_epi64(tr1_0, tr1_4); |
| in2 = _mm_unpacklo_epi64(tr1_2, tr1_6); |
| in3 = _mm_unpackhi_epi64(tr1_2, tr1_6); |
| in4 = _mm_unpacklo_epi64(tr1_1, tr1_5); |
| in5 = _mm_unpackhi_epi64(tr1_1, tr1_5); |
| in6 = _mm_unpacklo_epi64(tr1_3, tr1_7); |
| in7 = _mm_unpackhi_epi64(tr1_3, tr1_7); |
| // 00 10 20 30 40 50 60 70 |
| // 01 11 21 31 41 51 61 71 |
| // 02 12 22 32 42 52 62 72 |
| // 03 13 23 33 43 53 63 73 |
| // 04 14 24 34 44 54 64 74 |
| // 05 15 25 35 45 55 65 75 |
| // 06 16 26 36 46 56 66 76 |
| // 07 17 27 37 47 57 67 77 |
| } |
| } |
| // Post-condition output and store it |
| { |
| // Post-condition (division by two) |
| // division of two 16 bits signed numbers using shifts |
| // n / 2 = (n - (n >> 15)) >> 1 |
| const __m128i sign_in0 = _mm_srai_epi16(in0, 15); |
| const __m128i sign_in1 = _mm_srai_epi16(in1, 15); |
| const __m128i sign_in2 = _mm_srai_epi16(in2, 15); |
| const __m128i sign_in3 = _mm_srai_epi16(in3, 15); |
| const __m128i sign_in4 = _mm_srai_epi16(in4, 15); |
| const __m128i sign_in5 = _mm_srai_epi16(in5, 15); |
| const __m128i sign_in6 = _mm_srai_epi16(in6, 15); |
| const __m128i sign_in7 = _mm_srai_epi16(in7, 15); |
| in0 = _mm_sub_epi16(in0, sign_in0); |
| in1 = _mm_sub_epi16(in1, sign_in1); |
| in2 = _mm_sub_epi16(in2, sign_in2); |
| in3 = _mm_sub_epi16(in3, sign_in3); |
| in4 = _mm_sub_epi16(in4, sign_in4); |
| in5 = _mm_sub_epi16(in5, sign_in5); |
| in6 = _mm_sub_epi16(in6, sign_in6); |
| in7 = _mm_sub_epi16(in7, sign_in7); |
| in0 = _mm_srai_epi16(in0, 1); |
| in1 = _mm_srai_epi16(in1, 1); |
| in2 = _mm_srai_epi16(in2, 1); |
| in3 = _mm_srai_epi16(in3, 1); |
| in4 = _mm_srai_epi16(in4, 1); |
| in5 = _mm_srai_epi16(in5, 1); |
| in6 = _mm_srai_epi16(in6, 1); |
| in7 = _mm_srai_epi16(in7, 1); |
| } |
| |
| iscan_ptr += n_coeffs; |
| qcoeff_ptr += n_coeffs; |
| dqcoeff_ptr += n_coeffs; |
| n_coeffs = -n_coeffs; |
| zero = _mm_setzero_si128(); |
| |
| if (!skip_block) { |
| __m128i eob; |
| __m128i round, quant, dequant, thr; |
| int16_t nzflag; |
| { |
| __m128i coeff0, coeff1; |
| |
| // Setup global values |
| { |
| round = _mm_load_si128((const __m128i*)round_ptr); |
| quant = _mm_load_si128((const __m128i*)quant_ptr); |
| dequant = _mm_load_si128((const __m128i*)dequant_ptr); |
| } |
| |
| { |
| __m128i coeff0_sign, coeff1_sign; |
| __m128i qcoeff0, qcoeff1; |
| __m128i qtmp0, qtmp1; |
| // Do DC and first 15 AC |
| coeff0 = *in[0]; |
| coeff1 = *in[1]; |
| |
| // Poor man's sign extract |
| coeff0_sign = _mm_srai_epi16(coeff0, 15); |
| coeff1_sign = _mm_srai_epi16(coeff1, 15); |
| qcoeff0 = _mm_xor_si128(coeff0, coeff0_sign); |
| qcoeff1 = _mm_xor_si128(coeff1, coeff1_sign); |
| qcoeff0 = _mm_sub_epi16(qcoeff0, coeff0_sign); |
| qcoeff1 = _mm_sub_epi16(qcoeff1, coeff1_sign); |
| |
| qcoeff0 = _mm_adds_epi16(qcoeff0, round); |
| round = _mm_unpackhi_epi64(round, round); |
| qcoeff1 = _mm_adds_epi16(qcoeff1, round); |
| qtmp0 = _mm_mulhi_epi16(qcoeff0, quant); |
| quant = _mm_unpackhi_epi64(quant, quant); |
| qtmp1 = _mm_mulhi_epi16(qcoeff1, quant); |
| |
| // Reinsert signs |
| qcoeff0 = _mm_xor_si128(qtmp0, coeff0_sign); |
| qcoeff1 = _mm_xor_si128(qtmp1, coeff1_sign); |
| qcoeff0 = _mm_sub_epi16(qcoeff0, coeff0_sign); |
| qcoeff1 = _mm_sub_epi16(qcoeff1, coeff1_sign); |
| |
| _mm_store_si128((__m128i*)(qcoeff_ptr + n_coeffs), qcoeff0); |
| _mm_store_si128((__m128i*)(qcoeff_ptr + n_coeffs) + 1, qcoeff1); |
| |
| coeff0 = _mm_mullo_epi16(qcoeff0, dequant); |
| dequant = _mm_unpackhi_epi64(dequant, dequant); |
| coeff1 = _mm_mullo_epi16(qcoeff1, dequant); |
| |
| _mm_store_si128((__m128i*)(dqcoeff_ptr + n_coeffs), coeff0); |
| _mm_store_si128((__m128i*)(dqcoeff_ptr + n_coeffs) + 1, coeff1); |
| } |
| |
| { |
| // Scan for eob |
| __m128i zero_coeff0, zero_coeff1; |
| __m128i nzero_coeff0, nzero_coeff1; |
| __m128i iscan0, iscan1; |
| __m128i eob1; |
| zero_coeff0 = _mm_cmpeq_epi16(coeff0, zero); |
| zero_coeff1 = _mm_cmpeq_epi16(coeff1, zero); |
| nzero_coeff0 = _mm_cmpeq_epi16(zero_coeff0, zero); |
| nzero_coeff1 = _mm_cmpeq_epi16(zero_coeff1, zero); |
| iscan0 = _mm_load_si128((const __m128i*)(iscan_ptr + n_coeffs)); |
| iscan1 = _mm_load_si128((const __m128i*)(iscan_ptr + n_coeffs) + 1); |
| // Add one to convert from indices to counts |
| iscan0 = _mm_sub_epi16(iscan0, nzero_coeff0); |
| iscan1 = _mm_sub_epi16(iscan1, nzero_coeff1); |
| eob = _mm_and_si128(iscan0, nzero_coeff0); |
| eob1 = _mm_and_si128(iscan1, nzero_coeff1); |
| eob = _mm_max_epi16(eob, eob1); |
| } |
| n_coeffs += 8 * 2; |
| } |
| |
| // AC only loop |
| index = 2; |
| thr = _mm_srai_epi16(dequant, 1); |
| while (n_coeffs < 0) { |
| __m128i coeff0, coeff1; |
| { |
| __m128i coeff0_sign, coeff1_sign; |
| __m128i qcoeff0, qcoeff1; |
| __m128i qtmp0, qtmp1; |
| |
| assert(index < (int)(sizeof(in) / sizeof(in[0])) - 1); |
| coeff0 = *in[index]; |
| coeff1 = *in[index + 1]; |
| |
| // Poor man's sign extract |
| coeff0_sign = _mm_srai_epi16(coeff0, 15); |
| coeff1_sign = _mm_srai_epi16(coeff1, 15); |
| qcoeff0 = _mm_xor_si128(coeff0, coeff0_sign); |
| qcoeff1 = _mm_xor_si128(coeff1, coeff1_sign); |
| qcoeff0 = _mm_sub_epi16(qcoeff0, coeff0_sign); |
| qcoeff1 = _mm_sub_epi16(qcoeff1, coeff1_sign); |
| |
| nzflag = _mm_movemask_epi8(_mm_cmpgt_epi16(qcoeff0, thr)) | |
| _mm_movemask_epi8(_mm_cmpgt_epi16(qcoeff1, thr)); |
| |
| if (nzflag) { |
| qcoeff0 = _mm_adds_epi16(qcoeff0, round); |
| qcoeff1 = _mm_adds_epi16(qcoeff1, round); |
| qtmp0 = _mm_mulhi_epi16(qcoeff0, quant); |
| qtmp1 = _mm_mulhi_epi16(qcoeff1, quant); |
| |
| // Reinsert signs |
| qcoeff0 = _mm_xor_si128(qtmp0, coeff0_sign); |
| qcoeff1 = _mm_xor_si128(qtmp1, coeff1_sign); |
| qcoeff0 = _mm_sub_epi16(qcoeff0, coeff0_sign); |
| qcoeff1 = _mm_sub_epi16(qcoeff1, coeff1_sign); |
| |
| _mm_store_si128((__m128i*)(qcoeff_ptr + n_coeffs), qcoeff0); |
| _mm_store_si128((__m128i*)(qcoeff_ptr + n_coeffs) + 1, qcoeff1); |
| |
| coeff0 = _mm_mullo_epi16(qcoeff0, dequant); |
| coeff1 = _mm_mullo_epi16(qcoeff1, dequant); |
| |
| _mm_store_si128((__m128i*)(dqcoeff_ptr + n_coeffs), coeff0); |
| _mm_store_si128((__m128i*)(dqcoeff_ptr + n_coeffs) + 1, coeff1); |
| } else { |
| _mm_store_si128((__m128i*)(qcoeff_ptr + n_coeffs), zero); |
| _mm_store_si128((__m128i*)(qcoeff_ptr + n_coeffs) + 1, zero); |
| |
| _mm_store_si128((__m128i*)(dqcoeff_ptr + n_coeffs), zero); |
| _mm_store_si128((__m128i*)(dqcoeff_ptr + n_coeffs) + 1, zero); |
| } |
| } |
| |
| if (nzflag) { |
| // Scan for eob |
| __m128i zero_coeff0, zero_coeff1; |
| __m128i nzero_coeff0, nzero_coeff1; |
| __m128i iscan0, iscan1; |
| __m128i eob0, eob1; |
| zero_coeff0 = _mm_cmpeq_epi16(coeff0, zero); |
| zero_coeff1 = _mm_cmpeq_epi16(coeff1, zero); |
| nzero_coeff0 = _mm_cmpeq_epi16(zero_coeff0, zero); |
| nzero_coeff1 = _mm_cmpeq_epi16(zero_coeff1, zero); |
| iscan0 = _mm_load_si128((const __m128i*)(iscan_ptr + n_coeffs)); |
| iscan1 = _mm_load_si128((const __m128i*)(iscan_ptr + n_coeffs) + 1); |
| // Add one to convert from indices to counts |
| iscan0 = _mm_sub_epi16(iscan0, nzero_coeff0); |
| iscan1 = _mm_sub_epi16(iscan1, nzero_coeff1); |
| eob0 = _mm_and_si128(iscan0, nzero_coeff0); |
| eob1 = _mm_and_si128(iscan1, nzero_coeff1); |
| eob0 = _mm_max_epi16(eob0, eob1); |
| eob = _mm_max_epi16(eob, eob0); |
| } |
| n_coeffs += 8 * 2; |
| index += 2; |
| } |
| |
| // Accumulate EOB |
| { |
| __m128i eob_shuffled; |
| eob_shuffled = _mm_shuffle_epi32(eob, 0xe); |
| eob = _mm_max_epi16(eob, eob_shuffled); |
| eob_shuffled = _mm_shufflelo_epi16(eob, 0xe); |
| eob = _mm_max_epi16(eob, eob_shuffled); |
| eob_shuffled = _mm_shufflelo_epi16(eob, 0x1); |
| eob = _mm_max_epi16(eob, eob_shuffled); |
| *eob_ptr = _mm_extract_epi16(eob, 1); |
| } |
| } else { |
| do { |
| _mm_store_si128((__m128i*)(dqcoeff_ptr + n_coeffs), zero); |
| _mm_store_si128((__m128i*)(dqcoeff_ptr + n_coeffs) + 1, zero); |
| _mm_store_si128((__m128i*)(qcoeff_ptr + n_coeffs), zero); |
| _mm_store_si128((__m128i*)(qcoeff_ptr + n_coeffs) + 1, zero); |
| n_coeffs += 8 * 2; |
| } while (n_coeffs < 0); |
| *eob_ptr = 0; |
| } |
| } |
