| /* |
| * Copyright (c) 2012 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 <emmintrin.h> // SSE2 |
| |
| #include "./vp9_rtcd.h" |
| #include "./vpx_dsp_rtcd.h" |
| #include "vpx_dsp/txfm_common.h" |
| #include "vpx_dsp/x86/fwd_txfm_sse2.h" |
| #include "vpx_dsp/x86/txfm_common_sse2.h" |
| #include "vpx_ports/mem.h" |
| |
| static INLINE void load_buffer_4x4(const int16_t *input, __m128i *in, |
| int stride) { |
| const __m128i k__nonzero_bias_a = _mm_setr_epi16(0, 1, 1, 1, 1, 1, 1, 1); |
| const __m128i k__nonzero_bias_b = _mm_setr_epi16(1, 0, 0, 0, 0, 0, 0, 0); |
| __m128i mask; |
| |
| in[0] = _mm_loadl_epi64((const __m128i *)(input + 0 * stride)); |
| in[1] = _mm_loadl_epi64((const __m128i *)(input + 1 * stride)); |
| in[2] = _mm_loadl_epi64((const __m128i *)(input + 2 * stride)); |
| in[3] = _mm_loadl_epi64((const __m128i *)(input + 3 * stride)); |
| |
| in[0] = _mm_slli_epi16(in[0], 4); |
| in[1] = _mm_slli_epi16(in[1], 4); |
| in[2] = _mm_slli_epi16(in[2], 4); |
| in[3] = _mm_slli_epi16(in[3], 4); |
| |
| mask = _mm_cmpeq_epi16(in[0], k__nonzero_bias_a); |
| in[0] = _mm_add_epi16(in[0], mask); |
| in[0] = _mm_add_epi16(in[0], k__nonzero_bias_b); |
| } |
| |
| static INLINE void write_buffer_4x4(tran_low_t *output, __m128i *res) { |
| const __m128i kOne = _mm_set1_epi16(1); |
| __m128i in01 = _mm_unpacklo_epi64(res[0], res[1]); |
| __m128i in23 = _mm_unpacklo_epi64(res[2], res[3]); |
| __m128i out01 = _mm_add_epi16(in01, kOne); |
| __m128i out23 = _mm_add_epi16(in23, kOne); |
| out01 = _mm_srai_epi16(out01, 2); |
| out23 = _mm_srai_epi16(out23, 2); |
| store_output(&out01, (output + 0 * 8)); |
| store_output(&out23, (output + 1 * 8)); |
| } |
| |
| static INLINE void transpose_4x4(__m128i *res) { |
| // Combine and transpose |
| // 00 01 02 03 20 21 22 23 |
| // 10 11 12 13 30 31 32 33 |
| const __m128i tr0_0 = _mm_unpacklo_epi16(res[0], res[1]); |
| const __m128i tr0_1 = _mm_unpackhi_epi16(res[0], res[1]); |
| |
| // 00 10 01 11 02 12 03 13 |
| // 20 30 21 31 22 32 23 33 |
| res[0] = _mm_unpacklo_epi32(tr0_0, tr0_1); |
| res[2] = _mm_unpackhi_epi32(tr0_0, tr0_1); |
| |
| // 00 10 20 30 01 11 21 31 |
| // 02 12 22 32 03 13 23 33 |
| // only use the first 4 16-bit integers |
| res[1] = _mm_unpackhi_epi64(res[0], res[0]); |
| res[3] = _mm_unpackhi_epi64(res[2], res[2]); |
| } |
| |
| static void fdct4_sse2(__m128i *in) { |
| 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_p08_p24 = pair_set_epi16(cospi_8_64, cospi_24_64); |
| const __m128i k__cospi_p24_m08 = pair_set_epi16(cospi_24_64, -cospi_8_64); |
| const __m128i k__DCT_CONST_ROUNDING = _mm_set1_epi32(DCT_CONST_ROUNDING); |
| |
| __m128i u[4], v[4]; |
| u[0]=_mm_unpacklo_epi16(in[0], in[1]); |
| u[1]=_mm_unpacklo_epi16(in[3], in[2]); |
| |
| v[0] = _mm_add_epi16(u[0], u[1]); |
| v[1] = _mm_sub_epi16(u[0], u[1]); |
| |
| u[0] = _mm_madd_epi16(v[0], k__cospi_p16_p16); // 0 |
| u[1] = _mm_madd_epi16(v[0], k__cospi_p16_m16); // 2 |
| u[2] = _mm_madd_epi16(v[1], k__cospi_p08_p24); // 1 |
| u[3] = _mm_madd_epi16(v[1], k__cospi_p24_m08); // 3 |
| |
| v[0] = _mm_add_epi32(u[0], k__DCT_CONST_ROUNDING); |
| v[1] = _mm_add_epi32(u[1], k__DCT_CONST_ROUNDING); |
| v[2] = _mm_add_epi32(u[2], k__DCT_CONST_ROUNDING); |
| v[3] = _mm_add_epi32(u[3], k__DCT_CONST_ROUNDING); |
| u[0] = _mm_srai_epi32(v[0], DCT_CONST_BITS); |
| u[1] = _mm_srai_epi32(v[1], DCT_CONST_BITS); |
| u[2] = _mm_srai_epi32(v[2], DCT_CONST_BITS); |
| u[3] = _mm_srai_epi32(v[3], DCT_CONST_BITS); |
| |
| in[0] = _mm_packs_epi32(u[0], u[1]); |
| in[1] = _mm_packs_epi32(u[2], u[3]); |
| transpose_4x4(in); |
| } |
| |
| static void fadst4_sse2(__m128i *in) { |
| const __m128i k__sinpi_p01_p02 = pair_set_epi16(sinpi_1_9, sinpi_2_9); |
| const __m128i k__sinpi_p04_m01 = pair_set_epi16(sinpi_4_9, -sinpi_1_9); |
| const __m128i k__sinpi_p03_p04 = pair_set_epi16(sinpi_3_9, sinpi_4_9); |
| const __m128i k__sinpi_m03_p02 = pair_set_epi16(-sinpi_3_9, sinpi_2_9); |
| const __m128i k__sinpi_p03_p03 = _mm_set1_epi16((int16_t)sinpi_3_9); |
| const __m128i kZero = _mm_set1_epi16(0); |
| const __m128i k__DCT_CONST_ROUNDING = _mm_set1_epi32(DCT_CONST_ROUNDING); |
| __m128i u[8], v[8]; |
| __m128i in7 = _mm_add_epi16(in[0], in[1]); |
| |
| u[0] = _mm_unpacklo_epi16(in[0], in[1]); |
| u[1] = _mm_unpacklo_epi16(in[2], in[3]); |
| u[2] = _mm_unpacklo_epi16(in7, kZero); |
| u[3] = _mm_unpacklo_epi16(in[2], kZero); |
| u[4] = _mm_unpacklo_epi16(in[3], kZero); |
| |
| v[0] = _mm_madd_epi16(u[0], k__sinpi_p01_p02); // s0 + s2 |
| v[1] = _mm_madd_epi16(u[1], k__sinpi_p03_p04); // s4 + s5 |
| v[2] = _mm_madd_epi16(u[2], k__sinpi_p03_p03); // x1 |
| v[3] = _mm_madd_epi16(u[0], k__sinpi_p04_m01); // s1 - s3 |
| v[4] = _mm_madd_epi16(u[1], k__sinpi_m03_p02); // -s4 + s6 |
| v[5] = _mm_madd_epi16(u[3], k__sinpi_p03_p03); // s4 |
| v[6] = _mm_madd_epi16(u[4], k__sinpi_p03_p03); |
| |
| u[0] = _mm_add_epi32(v[0], v[1]); |
| u[1] = _mm_sub_epi32(v[2], v[6]); |
| u[2] = _mm_add_epi32(v[3], v[4]); |
| u[3] = _mm_sub_epi32(u[2], u[0]); |
| u[4] = _mm_slli_epi32(v[5], 2); |
| u[5] = _mm_sub_epi32(u[4], v[5]); |
| u[6] = _mm_add_epi32(u[3], u[5]); |
| |
| v[0] = _mm_add_epi32(u[0], k__DCT_CONST_ROUNDING); |
| v[1] = _mm_add_epi32(u[1], k__DCT_CONST_ROUNDING); |
| v[2] = _mm_add_epi32(u[2], k__DCT_CONST_ROUNDING); |
| v[3] = _mm_add_epi32(u[6], k__DCT_CONST_ROUNDING); |
| |
| u[0] = _mm_srai_epi32(v[0], DCT_CONST_BITS); |
| u[1] = _mm_srai_epi32(v[1], DCT_CONST_BITS); |
| u[2] = _mm_srai_epi32(v[2], DCT_CONST_BITS); |
| u[3] = _mm_srai_epi32(v[3], DCT_CONST_BITS); |
| |
| in[0] = _mm_packs_epi32(u[0], u[2]); |
| in[1] = _mm_packs_epi32(u[1], u[3]); |
| transpose_4x4(in); |
| } |
| |
| void vp9_fht4x4_sse2(const int16_t *input, tran_low_t *output, |
| int stride, int tx_type) { |
| __m128i in[4]; |
| |
| switch (tx_type) { |
| case DCT_DCT: |
| vpx_fdct4x4_sse2(input, output, stride); |
| break; |
| case ADST_DCT: |
| load_buffer_4x4(input, in, stride); |
| fadst4_sse2(in); |
| fdct4_sse2(in); |
| write_buffer_4x4(output, in); |
| break; |
| case DCT_ADST: |
| load_buffer_4x4(input, in, stride); |
| fdct4_sse2(in); |
| fadst4_sse2(in); |
| write_buffer_4x4(output, in); |
| break; |
| case ADST_ADST: |
| load_buffer_4x4(input, in, stride); |
| fadst4_sse2(in); |
| fadst4_sse2(in); |
| write_buffer_4x4(output, in); |
| break; |
| default: |
| assert(0); |
| break; |
| } |
| } |
| |
| void vp9_fdct8x8_quant_sse2(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__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_unpacklo_epi16(q6, q5); |
| const __m128i d1 = _mm_unpackhi_epi16(q6, q5); |
| const __m128i e0 = _mm_madd_epi16(d0, k__cospi_p16_m16); |
| const __m128i e1 = _mm_madd_epi16(d1, k__cospi_p16_m16); |
| const __m128i e2 = _mm_madd_epi16(d0, k__cospi_p16_p16); |
| const __m128i e3 = _mm_madd_epi16(d1, k__cospi_p16_p16); |
| // dct_const_round_shift |
| const __m128i f0 = _mm_add_epi32(e0, k__DCT_CONST_ROUNDING); |
| const __m128i f1 = _mm_add_epi32(e1, k__DCT_CONST_ROUNDING); |
| const __m128i f2 = _mm_add_epi32(e2, k__DCT_CONST_ROUNDING); |
| const __m128i f3 = _mm_add_epi32(e3, k__DCT_CONST_ROUNDING); |
| const __m128i s0 = _mm_srai_epi32(f0, DCT_CONST_BITS); |
| const __m128i s1 = _mm_srai_epi32(f1, DCT_CONST_BITS); |
| const __m128i s2 = _mm_srai_epi32(f2, DCT_CONST_BITS); |
| const __m128i s3 = _mm_srai_epi32(f3, DCT_CONST_BITS); |
| // Combine |
| const __m128i r0 = _mm_packs_epi32(s0, s1); |
| const __m128i r1 = _mm_packs_epi32(s2, s3); |
| // 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; |
| { |
| __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; |
| 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); |
| |
| 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); |
| } |
| |
| { |
| // 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; |
| } |
| } |
| |
| // load 8x8 array |
| static INLINE void load_buffer_8x8(const int16_t *input, __m128i *in, |
| int stride) { |
| in[0] = _mm_load_si128((const __m128i *)(input + 0 * stride)); |
| in[1] = _mm_load_si128((const __m128i *)(input + 1 * stride)); |
| in[2] = _mm_load_si128((const __m128i *)(input + 2 * stride)); |
| in[3] = _mm_load_si128((const __m128i *)(input + 3 * stride)); |
| in[4] = _mm_load_si128((const __m128i *)(input + 4 * stride)); |
| in[5] = _mm_load_si128((const __m128i *)(input + 5 * stride)); |
| in[6] = _mm_load_si128((const __m128i *)(input + 6 * stride)); |
| in[7] = _mm_load_si128((const __m128i *)(input + 7 * stride)); |
| |
| in[0] = _mm_slli_epi16(in[0], 2); |
| in[1] = _mm_slli_epi16(in[1], 2); |
| in[2] = _mm_slli_epi16(in[2], 2); |
| in[3] = _mm_slli_epi16(in[3], 2); |
| in[4] = _mm_slli_epi16(in[4], 2); |
| in[5] = _mm_slli_epi16(in[5], 2); |
| in[6] = _mm_slli_epi16(in[6], 2); |
| in[7] = _mm_slli_epi16(in[7], 2); |
| } |
| |
| // right shift and rounding |
| static INLINE void right_shift_8x8(__m128i *res, const int bit) { |
| __m128i sign0 = _mm_srai_epi16(res[0], 15); |
| __m128i sign1 = _mm_srai_epi16(res[1], 15); |
| __m128i sign2 = _mm_srai_epi16(res[2], 15); |
| __m128i sign3 = _mm_srai_epi16(res[3], 15); |
| __m128i sign4 = _mm_srai_epi16(res[4], 15); |
| __m128i sign5 = _mm_srai_epi16(res[5], 15); |
| __m128i sign6 = _mm_srai_epi16(res[6], 15); |
| __m128i sign7 = _mm_srai_epi16(res[7], 15); |
| |
| if (bit == 2) { |
| const __m128i const_rounding = _mm_set1_epi16(1); |
| res[0] = _mm_add_epi16(res[0], const_rounding); |
| res[1] = _mm_add_epi16(res[1], const_rounding); |
| res[2] = _mm_add_epi16(res[2], const_rounding); |
| res[3] = _mm_add_epi16(res[3], const_rounding); |
| res[4] = _mm_add_epi16(res[4], const_rounding); |
| res[5] = _mm_add_epi16(res[5], const_rounding); |
| res[6] = _mm_add_epi16(res[6], const_rounding); |
| res[7] = _mm_add_epi16(res[7], const_rounding); |
| } |
| |
| res[0] = _mm_sub_epi16(res[0], sign0); |
| res[1] = _mm_sub_epi16(res[1], sign1); |
| res[2] = _mm_sub_epi16(res[2], sign2); |
| res[3] = _mm_sub_epi16(res[3], sign3); |
| res[4] = _mm_sub_epi16(res[4], sign4); |
| res[5] = _mm_sub_epi16(res[5], sign5); |
| res[6] = _mm_sub_epi16(res[6], sign6); |
| res[7] = _mm_sub_epi16(res[7], sign7); |
| |
| if (bit == 1) { |
| res[0] = _mm_srai_epi16(res[0], 1); |
| res[1] = _mm_srai_epi16(res[1], 1); |
| res[2] = _mm_srai_epi16(res[2], 1); |
| res[3] = _mm_srai_epi16(res[3], 1); |
| res[4] = _mm_srai_epi16(res[4], 1); |
| res[5] = _mm_srai_epi16(res[5], 1); |
| res[6] = _mm_srai_epi16(res[6], 1); |
| res[7] = _mm_srai_epi16(res[7], 1); |
| } else { |
| res[0] = _mm_srai_epi16(res[0], 2); |
| res[1] = _mm_srai_epi16(res[1], 2); |
| res[2] = _mm_srai_epi16(res[2], 2); |
| res[3] = _mm_srai_epi16(res[3], 2); |
| res[4] = _mm_srai_epi16(res[4], 2); |
| res[5] = _mm_srai_epi16(res[5], 2); |
| res[6] = _mm_srai_epi16(res[6], 2); |
| res[7] = _mm_srai_epi16(res[7], 2); |
| } |
| } |
| |
| // write 8x8 array |
| static INLINE void write_buffer_8x8(tran_low_t *output, __m128i *res, |
| int stride) { |
| store_output(&res[0], (output + 0 * stride)); |
| store_output(&res[1], (output + 1 * stride)); |
| store_output(&res[2], (output + 2 * stride)); |
| store_output(&res[3], (output + 3 * stride)); |
| store_output(&res[4], (output + 4 * stride)); |
| store_output(&res[5], (output + 5 * stride)); |
| store_output(&res[6], (output + 6 * stride)); |
| store_output(&res[7], (output + 7 * stride)); |
| } |
| |
| // perform in-place transpose |
| static INLINE void array_transpose_8x8(__m128i *in, __m128i *res) { |
| const __m128i tr0_0 = _mm_unpacklo_epi16(in[0], in[1]); |
| const __m128i tr0_1 = _mm_unpacklo_epi16(in[2], in[3]); |
| const __m128i tr0_2 = _mm_unpackhi_epi16(in[0], in[1]); |
| const __m128i tr0_3 = _mm_unpackhi_epi16(in[2], in[3]); |
| const __m128i tr0_4 = _mm_unpacklo_epi16(in[4], in[5]); |
| const __m128i tr0_5 = _mm_unpacklo_epi16(in[6], in[7]); |
| const __m128i tr0_6 = _mm_unpackhi_epi16(in[4], in[5]); |
| const __m128i tr0_7 = _mm_unpackhi_epi16(in[6], in[7]); |
| // 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 |
| // 44 54 45 55 46 56 47 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_4, tr0_5); |
| const __m128i tr1_2 = _mm_unpackhi_epi32(tr0_0, tr0_1); |
| const __m128i tr1_3 = _mm_unpackhi_epi32(tr0_4, tr0_5); |
| const __m128i tr1_4 = _mm_unpacklo_epi32(tr0_2, tr0_3); |
| const __m128i tr1_5 = _mm_unpacklo_epi32(tr0_6, tr0_7); |
| const __m128i tr1_6 = _mm_unpackhi_epi32(tr0_2, tr0_3); |
| 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 25 35 |
| // 44 54 64 74 45 55 65 75 |
| // 06 16 26 36 07 17 27 37 |
| // 46 56 66 76 47 57 67 77 |
| res[0] = _mm_unpacklo_epi64(tr1_0, tr1_1); |
| res[1] = _mm_unpackhi_epi64(tr1_0, tr1_1); |
| res[2] = _mm_unpacklo_epi64(tr1_2, tr1_3); |
| res[3] = _mm_unpackhi_epi64(tr1_2, tr1_3); |
| res[4] = _mm_unpacklo_epi64(tr1_4, tr1_5); |
| res[5] = _mm_unpackhi_epi64(tr1_4, tr1_5); |
| res[6] = _mm_unpacklo_epi64(tr1_6, tr1_7); |
| res[7] = _mm_unpackhi_epi64(tr1_6, 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 |
| } |
| |
| static void fdct8_sse2(__m128i *in) { |
| // constants |
| 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); |
| __m128i u0, u1, u2, u3, u4, u5, u6, u7; |
| __m128i v0, v1, v2, v3, v4, v5, v6, v7; |
| __m128i s0, s1, s2, s3, s4, s5, s6, s7; |
| |
| // stage 1 |
| s0 = _mm_add_epi16(in[0], in[7]); |
| s1 = _mm_add_epi16(in[1], in[6]); |
| s2 = _mm_add_epi16(in[2], in[5]); |
| s3 = _mm_add_epi16(in[3], in[4]); |
| s4 = _mm_sub_epi16(in[3], in[4]); |
| s5 = _mm_sub_epi16(in[2], in[5]); |
| s6 = _mm_sub_epi16(in[1], in[6]); |
| s7 = _mm_sub_epi16(in[0], in[7]); |
| |
| u0 = _mm_add_epi16(s0, s3); |
| u1 = _mm_add_epi16(s1, s2); |
| u2 = _mm_sub_epi16(s1, s2); |
| u3 = _mm_sub_epi16(s0, s3); |
| // interleave and perform butterfly multiplication/addition |
| v0 = _mm_unpacklo_epi16(u0, u1); |
| v1 = _mm_unpackhi_epi16(u0, u1); |
| v2 = _mm_unpacklo_epi16(u2, u3); |
| v3 = _mm_unpackhi_epi16(u2, u3); |
| |
| u0 = _mm_madd_epi16(v0, k__cospi_p16_p16); |
| u1 = _mm_madd_epi16(v1, k__cospi_p16_p16); |
| u2 = _mm_madd_epi16(v0, k__cospi_p16_m16); |
| u3 = _mm_madd_epi16(v1, k__cospi_p16_m16); |
| u4 = _mm_madd_epi16(v2, k__cospi_p24_p08); |
| u5 = _mm_madd_epi16(v3, k__cospi_p24_p08); |
| u6 = _mm_madd_epi16(v2, k__cospi_m08_p24); |
| u7 = _mm_madd_epi16(v3, k__cospi_m08_p24); |
| |
| // shift and rounding |
| v0 = _mm_add_epi32(u0, k__DCT_CONST_ROUNDING); |
| v1 = _mm_add_epi32(u1, k__DCT_CONST_ROUNDING); |
| v2 = _mm_add_epi32(u2, k__DCT_CONST_ROUNDING); |
| v3 = _mm_add_epi32(u3, k__DCT_CONST_ROUNDING); |
| v4 = _mm_add_epi32(u4, k__DCT_CONST_ROUNDING); |
| v5 = _mm_add_epi32(u5, k__DCT_CONST_ROUNDING); |
| v6 = _mm_add_epi32(u6, k__DCT_CONST_ROUNDING); |
| v7 = _mm_add_epi32(u7, k__DCT_CONST_ROUNDING); |
| |
| u0 = _mm_srai_epi32(v0, DCT_CONST_BITS); |
| u1 = _mm_srai_epi32(v1, DCT_CONST_BITS); |
| u2 = _mm_srai_epi32(v2, DCT_CONST_BITS); |
| u3 = _mm_srai_epi32(v3, DCT_CONST_BITS); |
| u4 = _mm_srai_epi32(v4, DCT_CONST_BITS); |
| u5 = _mm_srai_epi32(v5, DCT_CONST_BITS); |
| u6 = _mm_srai_epi32(v6, DCT_CONST_BITS); |
| u7 = _mm_srai_epi32(v7, DCT_CONST_BITS); |
| |
| in[0] = _mm_packs_epi32(u0, u1); |
| in[2] = _mm_packs_epi32(u4, u5); |
| in[4] = _mm_packs_epi32(u2, u3); |
| in[6] = _mm_packs_epi32(u6, u7); |
| |
| // stage 2 |
| // interleave and perform butterfly multiplication/addition |
| u0 = _mm_unpacklo_epi16(s6, s5); |
| u1 = _mm_unpackhi_epi16(s6, s5); |
| v0 = _mm_madd_epi16(u0, k__cospi_p16_m16); |
| v1 = _mm_madd_epi16(u1, k__cospi_p16_m16); |
| v2 = _mm_madd_epi16(u0, k__cospi_p16_p16); |
| v3 = _mm_madd_epi16(u1, k__cospi_p16_p16); |
| |
| // shift and rounding |
| u0 = _mm_add_epi32(v0, k__DCT_CONST_ROUNDING); |
| u1 = _mm_add_epi32(v1, k__DCT_CONST_ROUNDING); |
| u2 = _mm_add_epi32(v2, k__DCT_CONST_ROUNDING); |
| u3 = _mm_add_epi32(v3, k__DCT_CONST_ROUNDING); |
| |
| v0 = _mm_srai_epi32(u0, DCT_CONST_BITS); |
| v1 = _mm_srai_epi32(u1, DCT_CONST_BITS); |
| v2 = _mm_srai_epi32(u2, DCT_CONST_BITS); |
| v3 = _mm_srai_epi32(u3, DCT_CONST_BITS); |
| |
| u0 = _mm_packs_epi32(v0, v1); |
| u1 = _mm_packs_epi32(v2, v3); |
| |
| // stage 3 |
| s0 = _mm_add_epi16(s4, u0); |
| s1 = _mm_sub_epi16(s4, u0); |
| s2 = _mm_sub_epi16(s7, u1); |
| s3 = _mm_add_epi16(s7, u1); |
| |
| // stage 4 |
| u0 = _mm_unpacklo_epi16(s0, s3); |
| u1 = _mm_unpackhi_epi16(s0, s3); |
| u2 = _mm_unpacklo_epi16(s1, s2); |
| u3 = _mm_unpackhi_epi16(s1, s2); |
| |
| v0 = _mm_madd_epi16(u0, k__cospi_p28_p04); |
| v1 = _mm_madd_epi16(u1, k__cospi_p28_p04); |
| v2 = _mm_madd_epi16(u2, k__cospi_p12_p20); |
| v3 = _mm_madd_epi16(u3, k__cospi_p12_p20); |
| v4 = _mm_madd_epi16(u2, k__cospi_m20_p12); |
| v5 = _mm_madd_epi16(u3, k__cospi_m20_p12); |
| v6 = _mm_madd_epi16(u0, k__cospi_m04_p28); |
| v7 = _mm_madd_epi16(u1, k__cospi_m04_p28); |
| |
| // shift and rounding |
| u0 = _mm_add_epi32(v0, k__DCT_CONST_ROUNDING); |
| u1 = _mm_add_epi32(v1, k__DCT_CONST_ROUNDING); |
| u2 = _mm_add_epi32(v2, k__DCT_CONST_ROUNDING); |
| u3 = _mm_add_epi32(v3, k__DCT_CONST_ROUNDING); |
| u4 = _mm_add_epi32(v4, k__DCT_CONST_ROUNDING); |
| u5 = _mm_add_epi32(v5, k__DCT_CONST_ROUNDING); |
| u6 = _mm_add_epi32(v6, k__DCT_CONST_ROUNDING); |
| u7 = _mm_add_epi32(v7, k__DCT_CONST_ROUNDING); |
| |
| v0 = _mm_srai_epi32(u0, DCT_CONST_BITS); |
| v1 = _mm_srai_epi32(u1, DCT_CONST_BITS); |
| v2 = _mm_srai_epi32(u2, DCT_CONST_BITS); |
| v3 = _mm_srai_epi32(u3, DCT_CONST_BITS); |
| v4 = _mm_srai_epi32(u4, DCT_CONST_BITS); |
| v5 = _mm_srai_epi32(u5, DCT_CONST_BITS); |
| v6 = _mm_srai_epi32(u6, DCT_CONST_BITS); |
| v7 = _mm_srai_epi32(u7, DCT_CONST_BITS); |
| |
| in[1] = _mm_packs_epi32(v0, v1); |
| in[3] = _mm_packs_epi32(v4, v5); |
| in[5] = _mm_packs_epi32(v2, v3); |
| in[7] = _mm_packs_epi32(v6, v7); |
| |
| // transpose |
| array_transpose_8x8(in, in); |
| } |
| |
| static void fadst8_sse2(__m128i *in) { |
| // Constants |
| const __m128i k__cospi_p02_p30 = pair_set_epi16(cospi_2_64, cospi_30_64); |
| const __m128i k__cospi_p30_m02 = pair_set_epi16(cospi_30_64, -cospi_2_64); |
| const __m128i k__cospi_p10_p22 = pair_set_epi16(cospi_10_64, cospi_22_64); |
| const __m128i k__cospi_p22_m10 = pair_set_epi16(cospi_22_64, -cospi_10_64); |
| const __m128i k__cospi_p18_p14 = pair_set_epi16(cospi_18_64, cospi_14_64); |
| const __m128i k__cospi_p14_m18 = pair_set_epi16(cospi_14_64, -cospi_18_64); |
| const __m128i k__cospi_p26_p06 = pair_set_epi16(cospi_26_64, cospi_6_64); |
| const __m128i k__cospi_p06_m26 = pair_set_epi16(cospi_6_64, -cospi_26_64); |
| const __m128i k__cospi_p08_p24 = pair_set_epi16(cospi_8_64, cospi_24_64); |
| const __m128i k__cospi_p24_m08 = pair_set_epi16(cospi_24_64, -cospi_8_64); |
| const __m128i k__cospi_m24_p08 = pair_set_epi16(-cospi_24_64, cospi_8_64); |
| const __m128i k__cospi_p16_m16 = pair_set_epi16(cospi_16_64, -cospi_16_64); |
| const __m128i k__cospi_p16_p16 = _mm_set1_epi16((int16_t)cospi_16_64); |
| const __m128i k__const_0 = _mm_set1_epi16(0); |
| const __m128i k__DCT_CONST_ROUNDING = _mm_set1_epi32(DCT_CONST_ROUNDING); |
| |
| __m128i u0, u1, u2, u3, u4, u5, u6, u7, u8, u9, u10, u11, u12, u13, u14, u15; |
| __m128i v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15; |
| __m128i w0, w1, w2, w3, w4, w5, w6, w7, w8, w9, w10, w11, w12, w13, w14, w15; |
| __m128i s0, s1, s2, s3, s4, s5, s6, s7; |
| __m128i in0, in1, in2, in3, in4, in5, in6, in7; |
| |
| // properly aligned for butterfly input |
| in0 = in[7]; |
| in1 = in[0]; |
| in2 = in[5]; |
| in3 = in[2]; |
| in4 = in[3]; |
| in5 = in[4]; |
| in6 = in[1]; |
| in7 = in[6]; |
| |
| // column transformation |
| // stage 1 |
| // interleave and multiply/add into 32-bit integer |
| s0 = _mm_unpacklo_epi16(in0, in1); |
| s1 = _mm_unpackhi_epi16(in0, in1); |
| s2 = _mm_unpacklo_epi16(in2, in3); |
| s3 = _mm_unpackhi_epi16(in2, in3); |
| s4 = _mm_unpacklo_epi16(in4, in5); |
| s5 = _mm_unpackhi_epi16(in4, in5); |
| s6 = _mm_unpacklo_epi16(in6, in7); |
| s7 = _mm_unpackhi_epi16(in6, in7); |
| |
| u0 = _mm_madd_epi16(s0, k__cospi_p02_p30); |
| u1 = _mm_madd_epi16(s1, k__cospi_p02_p30); |
| u2 = _mm_madd_epi16(s0, k__cospi_p30_m02); |
| u3 = _mm_madd_epi16(s1, k__cospi_p30_m02); |
| u4 = _mm_madd_epi16(s2, k__cospi_p10_p22); |
| u5 = _mm_madd_epi16(s3, k__cospi_p10_p22); |
| u6 = _mm_madd_epi16(s2, k__cospi_p22_m10); |
| u7 = _mm_madd_epi16(s3, k__cospi_p22_m10); |
| u8 = _mm_madd_epi16(s4, k__cospi_p18_p14); |
| u9 = _mm_madd_epi16(s5, k__cospi_p18_p14); |
| u10 = _mm_madd_epi16(s4, k__cospi_p14_m18); |
| u11 = _mm_madd_epi16(s5, k__cospi_p14_m18); |
| u12 = _mm_madd_epi16(s6, k__cospi_p26_p06); |
| u13 = _mm_madd_epi16(s7, k__cospi_p26_p06); |
| u14 = _mm_madd_epi16(s6, k__cospi_p06_m26); |
| u15 = _mm_madd_epi16(s7, k__cospi_p06_m26); |
| |
| // addition |
| w0 = _mm_add_epi32(u0, u8); |
| w1 = _mm_add_epi32(u1, u9); |
| w2 = _mm_add_epi32(u2, u10); |
| w3 = _mm_add_epi32(u3, u11); |
| w4 = _mm_add_epi32(u4, u12); |
| w5 = _mm_add_epi32(u5, u13); |
| w6 = _mm_add_epi32(u6, u14); |
| w7 = _mm_add_epi32(u7, u15); |
| w8 = _mm_sub_epi32(u0, u8); |
| w9 = _mm_sub_epi32(u1, u9); |
| w10 = _mm_sub_epi32(u2, u10); |
| w11 = _mm_sub_epi32(u3, u11); |
| w12 = _mm_sub_epi32(u4, u12); |
| w13 = _mm_sub_epi32(u5, u13); |
| w14 = _mm_sub_epi32(u6, u14); |
| w15 = _mm_sub_epi32(u7, u15); |
| |
| // shift and rounding |
| v0 = _mm_add_epi32(w0, k__DCT_CONST_ROUNDING); |
| v1 = _mm_add_epi32(w1, k__DCT_CONST_ROUNDING); |
| v2 = _mm_add_epi32(w2, k__DCT_CONST_ROUNDING); |
| v3 = _mm_add_epi32(w3, k__DCT_CONST_ROUNDING); |
| v4 = _mm_add_epi32(w4, k__DCT_CONST_ROUNDING); |
| v5 = _mm_add_epi32(w5, k__DCT_CONST_ROUNDING); |
| v6 = _mm_add_epi32(w6, k__DCT_CONST_ROUNDING); |
| v7 = _mm_add_epi32(w7, k__DCT_CONST_ROUNDING); |
| v8 = _mm_add_epi32(w8, k__DCT_CONST_ROUNDING); |
| v9 = _mm_add_epi32(w9, k__DCT_CONST_ROUNDING); |
| v10 = _mm_add_epi32(w10, k__DCT_CONST_ROUNDING); |
| v11 = _mm_add_epi32(w11, k__DCT_CONST_ROUNDING); |
| v12 = _mm_add_epi32(w12, k__DCT_CONST_ROUNDING); |
| v13 = _mm_add_epi32(w13, k__DCT_CONST_ROUNDING); |
| v14 = _mm_add_epi32(w14, k__DCT_CONST_ROUNDING); |
| v15 = _mm_add_epi32(w15, k__DCT_CONST_ROUNDING); |
| |
| u0 = _mm_srai_epi32(v0, DCT_CONST_BITS); |
| u1 = _mm_srai_epi32(v1, DCT_CONST_BITS); |
| u2 = _mm_srai_epi32(v2, DCT_CONST_BITS); |
| u3 = _mm_srai_epi32(v3, DCT_CONST_BITS); |
| u4 = _mm_srai_epi32(v4, DCT_CONST_BITS); |
| u5 = _mm_srai_epi32(v5, DCT_CONST_BITS); |
| u6 = _mm_srai_epi32(v6, DCT_CONST_BITS); |
| u7 = _mm_srai_epi32(v7, DCT_CONST_BITS); |
| u8 = _mm_srai_epi32(v8, DCT_CONST_BITS); |
| u9 = _mm_srai_epi32(v9, DCT_CONST_BITS); |
| u10 = _mm_srai_epi32(v10, DCT_CONST_BITS); |
| u11 = _mm_srai_epi32(v11, DCT_CONST_BITS); |
| u12 = _mm_srai_epi32(v12, DCT_CONST_BITS); |
| u13 = _mm_srai_epi32(v13, DCT_CONST_BITS); |
| u14 = _mm_srai_epi32(v14, DCT_CONST_BITS); |
| u15 = _mm_srai_epi32(v15, DCT_CONST_BITS); |
| |
| // back to 16-bit and pack 8 integers into __m128i |
| in[0] = _mm_packs_epi32(u0, u1); |
| in[1] = _mm_packs_epi32(u2, u3); |
| in[2] = _mm_packs_epi32(u4, u5); |
| in[3] = _mm_packs_epi32(u6, u7); |
| in[4] = _mm_packs_epi32(u8, u9); |
| in[5] = _mm_packs_epi32(u10, u11); |
| in[6] = _mm_packs_epi32(u12, u13); |
| in[7] = _mm_packs_epi32(u14, u15); |
| |
| // stage 2 |
| s0 = _mm_add_epi16(in[0], in[2]); |
| s1 = _mm_add_epi16(in[1], in[3]); |
| s2 = _mm_sub_epi16(in[0], in[2]); |
| s3 = _mm_sub_epi16(in[1], in[3]); |
| u0 = _mm_unpacklo_epi16(in[4], in[5]); |
| u1 = _mm_unpackhi_epi16(in[4], in[5]); |
| u2 = _mm_unpacklo_epi16(in[6], in[7]); |
| u3 = _mm_unpackhi_epi16(in[6], in[7]); |
| |
| v0 = _mm_madd_epi16(u0, k__cospi_p08_p24); |
| v1 = _mm_madd_epi16(u1, k__cospi_p08_p24); |
| v2 = _mm_madd_epi16(u0, k__cospi_p24_m08); |
| v3 = _mm_madd_epi16(u1, k__cospi_p24_m08); |
| v4 = _mm_madd_epi16(u2, k__cospi_m24_p08); |
| v5 = _mm_madd_epi16(u3, k__cospi_m24_p08); |
| v6 = _mm_madd_epi16(u2, k__cospi_p08_p24); |
| v7 = _mm_madd_epi16(u3, k__cospi_p08_p24); |
| |
| w0 = _mm_add_epi32(v0, v4); |
| w1 = _mm_add_epi32(v1, v5); |
| w2 = _mm_add_epi32(v2, v6); |
| w3 = _mm_add_epi32(v3, v7); |
| w4 = _mm_sub_epi32(v0, v4); |
| w5 = _mm_sub_epi32(v1, v5); |
| w6 = _mm_sub_epi32(v2, v6); |
| w7 = _mm_sub_epi32(v3, v7); |
| |
| v0 = _mm_add_epi32(w0, k__DCT_CONST_ROUNDING); |
| v1 = _mm_add_epi32(w1, k__DCT_CONST_ROUNDING); |
| v2 = _mm_add_epi32(w2, k__DCT_CONST_ROUNDING); |
| v3 = _mm_add_epi32(w3, k__DCT_CONST_ROUNDING); |
| v4 = _mm_add_epi32(w4, k__DCT_CONST_ROUNDING); |
| v5 = _mm_add_epi32(w5, k__DCT_CONST_ROUNDING); |
| v6 = _mm_add_epi32(w6, k__DCT_CONST_ROUNDING); |
| v7 = _mm_add_epi32(w7, k__DCT_CONST_ROUNDING); |
| |
| u0 = _mm_srai_epi32(v0, DCT_CONST_BITS); |
| u1 = _mm_srai_epi32(v1, DCT_CONST_BITS); |
| u2 = _mm_srai_epi32(v2, DCT_CONST_BITS); |
| u3 = _mm_srai_epi32(v3, DCT_CONST_BITS); |
| u4 = _mm_srai_epi32(v4, DCT_CONST_BITS); |
| u5 = _mm_srai_epi32(v5, DCT_CONST_BITS); |
| u6 = _mm_srai_epi32(v6, DCT_CONST_BITS); |
| u7 = _mm_srai_epi32(v7, DCT_CONST_BITS); |
| |
| // back to 16-bit intergers |
| s4 = _mm_packs_epi32(u0, u1); |
| s5 = _mm_packs_epi32(u2, u3); |
| s6 = _mm_packs_epi32(u4, u5); |
| s7 = _mm_packs_epi32(u6, u7); |
| |
| // stage 3 |
| u0 = _mm_unpacklo_epi16(s2, s3); |
| u1 = _mm_unpackhi_epi16(s2, s3); |
| u2 = _mm_unpacklo_epi16(s6, s7); |
| u3 = _mm_unpackhi_epi16(s6, s7); |
| |
| v0 = _mm_madd_epi16(u0, k__cospi_p16_p16); |
| v1 = _mm_madd_epi16(u1, k__cospi_p16_p16); |
| v2 = _mm_madd_epi16(u0, k__cospi_p16_m16); |
| v3 = _mm_madd_epi16(u1, k__cospi_p16_m16); |
| v4 = _mm_madd_epi16(u2, k__cospi_p16_p16); |
| v5 = _mm_madd_epi16(u3, k__cospi_p16_p16); |
| v6 = _mm_madd_epi16(u2, k__cospi_p16_m16); |
| v7 = _mm_madd_epi16(u3, k__cospi_p16_m16); |
| |
| u0 = _mm_add_epi32(v0, k__DCT_CONST_ROUNDING); |
| u1 = _mm_add_epi32(v1, k__DCT_CONST_ROUNDING); |
| u2 = _mm_add_epi32(v2, k__DCT_CONST_ROUNDING); |
| u3 = _mm_add_epi32(v3, k__DCT_CONST_ROUNDING); |
| u4 = _mm_add_epi32(v4, k__DCT_CONST_ROUNDING); |
| u5 = _mm_add_epi32(v5, k__DCT_CONST_ROUNDING); |
| u6 = _mm_add_epi32(v6, k__DCT_CONST_ROUNDING); |
| u7 = _mm_add_epi32(v7, k__DCT_CONST_ROUNDING); |
| |
| v0 = _mm_srai_epi32(u0, DCT_CONST_BITS); |
| v1 = _mm_srai_epi32(u1, DCT_CONST_BITS); |
| v2 = _mm_srai_epi32(u2, DCT_CONST_BITS); |
| v3 = _mm_srai_epi32(u3, DCT_CONST_BITS); |
| v4 = _mm_srai_epi32(u4, DCT_CONST_BITS); |
| v5 = _mm_srai_epi32(u5, DCT_CONST_BITS); |
| v6 = _mm_srai_epi32(u6, DCT_CONST_BITS); |
| v7 = _mm_srai_epi32(u7, DCT_CONST_BITS); |
| |
| s2 = _mm_packs_epi32(v0, v1); |
| s3 = _mm_packs_epi32(v2, v3); |
| s6 = _mm_packs_epi32(v4, v5); |
| s7 = _mm_packs_epi32(v6, v7); |
| |
| // FIXME(jingning): do subtract using bit inversion? |
| in[0] = s0; |
| in[1] = _mm_sub_epi16(k__const_0, s4); |
| in[2] = s6; |
| in[3] = _mm_sub_epi16(k__const_0, s2); |
| in[4] = s3; |
| in[5] = _mm_sub_epi16(k__const_0, s7); |
| in[6] = s5; |
| in[7] = _mm_sub_epi16(k__const_0, s1); |
| |
| // transpose |
| array_transpose_8x8(in, in); |
| } |
| |
| void vp9_fht8x8_sse2(const int16_t *input, tran_low_t *output, |
| int stride, int tx_type) { |
| __m128i in[8]; |
| |
| switch (tx_type) { |
| case DCT_DCT: |
| vpx_fdct8x8_sse2(input, output, stride); |
| break; |
| case ADST_DCT: |
| load_buffer_8x8(input, in, stride); |
| fadst8_sse2(in); |
| fdct8_sse2(in); |
| right_shift_8x8(in, 1); |
| write_buffer_8x8(output, in, 8); |
| break; |
| case DCT_ADST: |
| load_buffer_8x8(input, in, stride); |
| fdct8_sse2(in); |
| fadst8_sse2(in); |
| right_shift_8x8(in, 1); |
| write_buffer_8x8(output, in, 8); |
| break; |
| case ADST_ADST: |
| load_buffer_8x8(input, in, stride); |
| fadst8_sse2(in); |
| fadst8_sse2(in); |
| right_shift_8x8(in, 1); |
| write_buffer_8x8(output, in, 8); |
| break; |
| default: |
| assert(0); |
| break; |
| } |
| } |
| |
| static INLINE void load_buffer_16x16(const int16_t* input, __m128i *in0, |
| __m128i *in1, int stride) { |
| // load first 8 columns |
| load_buffer_8x8(input, in0, stride); |
| load_buffer_8x8(input + 8 * stride, in0 + 8, stride); |
| |
| input += 8; |
| // load second 8 columns |
| load_buffer_8x8(input, in1, stride); |
| load_buffer_8x8(input + 8 * stride, in1 + 8, stride); |
| } |
| |
| static INLINE void write_buffer_16x16(tran_low_t *output, __m128i *in0, |
| __m128i *in1, int stride) { |
| // write first 8 columns |
| write_buffer_8x8(output, in0, stride); |
| write_buffer_8x8(output + 8 * stride, in0 + 8, stride); |
| // write second 8 columns |
| output += 8; |
| write_buffer_8x8(output, in1, stride); |
| write_buffer_8x8(output + 8 * stride, in1 + 8, stride); |
| } |
| |
| static INLINE void array_transpose_16x16(__m128i *res0, __m128i *res1) { |
| __m128i tbuf[8]; |
| array_transpose_8x8(res0, res0); |
| array_transpose_8x8(res1, tbuf); |
| array_transpose_8x8(res0 + 8, res1); |
| array_transpose_8x8(res1 + 8, res1 + 8); |
| |
| res0[8] = tbuf[0]; |
| res0[9] = tbuf[1]; |
| res0[10] = tbuf[2]; |
| res0[11] = tbuf[3]; |
| res0[12] = tbuf[4]; |
| res0[13] = tbuf[5]; |
| res0[14] = tbuf[6]; |
| res0[15] = tbuf[7]; |
| } |
| |
| static INLINE void right_shift_16x16(__m128i *res0, __m128i *res1) { |
| // perform rounding operations |
| right_shift_8x8(res0, 2); |
| right_shift_8x8(res0 + 8, 2); |
| right_shift_8x8(res1, 2); |
| right_shift_8x8(res1 + 8, 2); |
| } |
| |
| static void fdct16_8col(__m128i *in) { |
| // perform 16x16 1-D DCT for 8 columns |
| __m128i i[8], s[8], p[8], t[8], u[16], v[16]; |
| 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_m16_p16 = 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_p08_m24 = pair_set_epi16(cospi_8_64, -cospi_24_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__cospi_p30_p02 = pair_set_epi16(cospi_30_64, cospi_2_64); |
| const __m128i k__cospi_p14_p18 = pair_set_epi16(cospi_14_64, cospi_18_64); |
| const __m128i k__cospi_m02_p30 = pair_set_epi16(-cospi_2_64, cospi_30_64); |
| const __m128i k__cospi_m18_p14 = pair_set_epi16(-cospi_18_64, cospi_14_64); |
| const __m128i k__cospi_p22_p10 = pair_set_epi16(cospi_22_64, cospi_10_64); |
| const __m128i k__cospi_p06_p26 = pair_set_epi16(cospi_6_64, cospi_26_64); |
| const __m128i k__cospi_m10_p22 = pair_set_epi16(-cospi_10_64, cospi_22_64); |
| const __m128i k__cospi_m26_p06 = pair_set_epi16(-cospi_26_64, cospi_6_64); |
| const __m128i k__DCT_CONST_ROUNDING = _mm_set1_epi32(DCT_CONST_ROUNDING); |
| |
| // stage 1 |
| i[0] = _mm_add_epi16(in[0], in[15]); |
| i[1] = _mm_add_epi16(in[1], in[14]); |
| i[2] = _mm_add_epi16(in[2], in[13]); |
| i[3] = _mm_add_epi16(in[3], in[12]); |
| i[4] = _mm_add_epi16(in[4], in[11]); |
| i[5] = _mm_add_epi16(in[5], in[10]); |
| i[6] = _mm_add_epi16(in[6], in[9]); |
| i[7] = _mm_add_epi16(in[7], in[8]); |
| |
| s[0] = _mm_sub_epi16(in[7], in[8]); |
| s[1] = _mm_sub_epi16(in[6], in[9]); |
| s[2] = _mm_sub_epi16(in[5], in[10]); |
| s[3] = _mm_sub_epi16(in[4], in[11]); |
| s[4] = _mm_sub_epi16(in[3], in[12]); |
| s[5] = _mm_sub_epi16(in[2], in[13]); |
| s[6] = _mm_sub_epi16(in[1], in[14]); |
| s[7] = _mm_sub_epi16(in[0], in[15]); |
| |
| p[0] = _mm_add_epi16(i[0], i[7]); |
| p[1] = _mm_add_epi16(i[1], i[6]); |
| p[2] = _mm_add_epi16(i[2], i[5]); |
| p[3] = _mm_add_epi16(i[3], i[4]); |
| p[4] = _mm_sub_epi16(i[3], i[4]); |
| p[5] = _mm_sub_epi16(i[2], i[5]); |
| p[6] = _mm_sub_epi16(i[1], i[6]); |
| p[7] = _mm_sub_epi16(i[0], i[7]); |
| |
| u[0] = _mm_add_epi16(p[0], p[3]); |
| u[1] = _mm_add_epi16(p[1], p[2]); |
| u[2] = _mm_sub_epi16(p[1], p[2]); |
| u[3] = _mm_sub_epi16(p[0], p[3]); |
| |
| v[0] = _mm_unpacklo_epi16(u[0], u[1]); |
| v[1] = _mm_unpackhi_epi16(u[0], u[1]); |
| v[2] = _mm_unpacklo_epi16(u[2], u[3]); |
| v[3] = _mm_unpackhi_epi16(u[2], u[3]); |
| |
| u[0] = _mm_madd_epi16(v[0], k__cospi_p16_p16); |
| u[1] = _mm_madd_epi16(v[1], k__cospi_p16_p16); |
| u[2] = _mm_madd_epi16(v[0], k__cospi_p16_m16); |
| u[3] = _mm_madd_epi16(v[1], k__cospi_p16_m16); |
| u[4] = _mm_madd_epi16(v[2], k__cospi_p24_p08); |
| u[5] = _mm_madd_epi16(v[3], k__cospi_p24_p08); |
| u[6] = _mm_madd_epi16(v[2], k__cospi_m08_p24); |
| u[7] = _mm_madd_epi16(v[3], k__cospi_m08_p24); |
| |
| v[0] = _mm_add_epi32(u[0], k__DCT_CONST_ROUNDING); |
| v[1] = _mm_add_epi32(u[1], k__DCT_CONST_ROUNDING); |
| v[2] = _mm_add_epi32(u[2], k__DCT_CONST_ROUNDING); |
| v[3] = _mm_add_epi32(u[3], k__DCT_CONST_ROUNDING); |
| v[4] = _mm_add_epi32(u[4], k__DCT_CONST_ROUNDING); |
| v[5] = _mm_add_epi32(u[5], k__DCT_CONST_ROUNDING); |
| v[6] = _mm_add_epi32(u[6], k__DCT_CONST_ROUNDING); |
| v[7] = _mm_add_epi32(u[7], k__DCT_CONST_ROUNDING); |
| |
| u[0] = _mm_srai_epi32(v[0], DCT_CONST_BITS); |
| u[1] = _mm_srai_epi32(v[1], DCT_CONST_BITS); |
| u[2] = _mm_srai_epi32(v[2], DCT_CONST_BITS); |
| u[3] = _mm_srai_epi32(v[3], DCT_CONST_BITS); |
| u[4] = _mm_srai_epi32(v[4], DCT_CONST_BITS); |
| u[5] = _mm_srai_epi32(v[5], DCT_CONST_BITS); |
| u[6] = _mm_srai_epi32(v[6], DCT_CONST_BITS); |
| u[7] = _mm_srai_epi32(v[7], DCT_CONST_BITS); |
| |
| in[0] = _mm_packs_epi32(u[0], u[1]); |
| in[4] = _mm_packs_epi32(u[4], u[5]); |
| in[8] = _mm_packs_epi32(u[2], u[3]); |
| in[12] = _mm_packs_epi32(u[6], u[7]); |
| |
| u[0] = _mm_unpacklo_epi16(p[5], p[6]); |
| u[1] = _mm_unpackhi_epi16(p[5], p[6]); |
| v[0] = _mm_madd_epi16(u[0], k__cospi_m16_p16); |
| v[1] = _mm_madd_epi16(u[1], k__cospi_m16_p16); |
| v[2] = _mm_madd_epi16(u[0], k__cospi_p16_p16); |
| v[3] = _mm_madd_epi16(u[1], k__cospi_p16_p16); |
| |
| u[0] = _mm_add_epi32(v[0], k__DCT_CONST_ROUNDING); |
| u[1] = _mm_add_epi32(v[1], k__DCT_CONST_ROUNDING); |
| u[2] = _mm_add_epi32(v[2], k__DCT_CONST_ROUNDING); |
| u[3] = _mm_add_epi32(v[3], k__DCT_CONST_ROUNDING); |
| |
| v[0] = _mm_srai_epi32(u[0], DCT_CONST_BITS); |
| v[1] = _mm_srai_epi32(u[1], DCT_CONST_BITS); |
| v[2] = _mm_srai_epi32(u[2], DCT_CONST_BITS); |
| v[3] = _mm_srai_epi32(u[3], DCT_CONST_BITS); |
| |
| u[0] = _mm_packs_epi32(v[0], v[1]); |
| u[1] = _mm_packs_epi32(v[2], v[3]); |
| |
| t[0] = _mm_add_epi16(p[4], u[0]); |
| t[1] = _mm_sub_epi16(p[4], u[0]); |
| t[2] = _mm_sub_epi16(p[7], u[1]); |
| t[3] = _mm_add_epi16(p[7], u[1]); |
| |
| u[0] = _mm_unpacklo_epi16(t[0], t[3]); |
| u[1] = _mm_unpackhi_epi16(t[0], t[3]); |
| u[2] = _mm_unpacklo_epi16(t[1], t[2]); |
| u[3] = _mm_unpackhi_epi16(t[1], t[2]); |
| |
| v[0] = _mm_madd_epi16(u[0], k__cospi_p28_p04); |
| v[1] = _mm_madd_epi16(u[1], k__cospi_p28_p04); |
| v[2] = _mm_madd_epi16(u[2], k__cospi_p12_p20); |
| v[3] = _mm_madd_epi16(u[3], k__cospi_p12_p20); |
| v[4] = _mm_madd_epi16(u[2], k__cospi_m20_p12); |
| v[5] = _mm_madd_epi16(u[3], k__cospi_m20_p12); |
| v[6] = _mm_madd_epi16(u[0], k__cospi_m04_p28); |
| v[7] = _mm_madd_epi16(u[1], k__cospi_m04_p28); |
| |
| u[0] = _mm_add_epi32(v[0], k__DCT_CONST_ROUNDING); |
| u[1] = _mm_add_epi32(v[1], k__DCT_CONST_ROUNDING); |
| u[2] = _mm_add_epi32(v[2], k__DCT_CONST_ROUNDING); |
| u[3] = _mm_add_epi32(v[3], k__DCT_CONST_ROUNDING); |
| u[4] = _mm_add_epi32(v[4], k__DCT_CONST_ROUNDING); |
| u[5] = _mm_add_epi32(v[5], k__DCT_CONST_ROUNDING); |
| u[6] = _mm_add_epi32(v[6], k__DCT_CONST_ROUNDING); |
| u[7] = _mm_add_epi32(v[7], k__DCT_CONST_ROUNDING); |
| |
| v[0] = _mm_srai_epi32(u[0], DCT_CONST_BITS); |
| v[1] = _mm_srai_epi32(u[1], DCT_CONST_BITS); |
| v[2] = _mm_srai_epi32(u[2], DCT_CONST_BITS); |
| v[3] = _mm_srai_epi32(u[3], DCT_CONST_BITS); |
| v[4] = _mm_srai_epi32(u[4], DCT_CONST_BITS); |
| v[5] = _mm_srai_epi32(u[5], DCT_CONST_BITS); |
| v[6] = _mm_srai_epi32(u[6], DCT_CONST_BITS); |
| v[7] = _mm_srai_epi32(u[7], DCT_CONST_BITS); |
| |
| in[2] = _mm_packs_epi32(v[0], v[1]); |
| in[6] = _mm_packs_epi32(v[4], v[5]); |
| in[10] = _mm_packs_epi32(v[2], v[3]); |
| in[14] = _mm_packs_epi32(v[6], v[7]); |
| |
| // stage 2 |
| u[0] = _mm_unpacklo_epi16(s[2], s[5]); |
| u[1] = _mm_unpackhi_epi16(s[2], s[5]); |
| u[2] = _mm_unpacklo_epi16(s[3], s[4]); |
| u[3] = _mm_unpackhi_epi16(s[3], s[4]); |
| |
| v[0] = _mm_madd_epi16(u[0], k__cospi_m16_p16); |
| v[1] = _mm_madd_epi16(u[1], k__cospi_m16_p16); |
| v[2] = _mm_madd_epi16(u[2], k__cospi_m16_p16); |
| v[3] = _mm_madd_epi16(u[3], k__cospi_m16_p16); |
| v[4] = _mm_madd_epi16(u[2], k__cospi_p16_p16); |
| v[5] = _mm_madd_epi16(u[3], k__cospi_p16_p16); |
| v[6] = _mm_madd_epi16(u[0], k__cospi_p16_p16); |
| v[7] = _mm_madd_epi16(u[1], k__cospi_p16_p16); |
| |
| u[0] = _mm_add_epi32(v[0], k__DCT_CONST_ROUNDING); |
| u[1] = _mm_add_epi32(v[1], k__DCT_CONST_ROUNDING); |
| u[2] = _mm_add_epi32(v[2], k__DCT_CONST_ROUNDING); |
| u[3] = _mm_add_epi32(v[3], k__DCT_CONST_ROUNDING); |
| u[4] = _mm_add_epi32(v[4], k__DCT_CONST_ROUNDING); |
| u[5] = _mm_add_epi32(v[5], k__DCT_CONST_ROUNDING); |
| u[6] = _mm_add_epi32(v[6], k__DCT_CONST_ROUNDING); |
| u[7] = _mm_add_epi32(v[7], k__DCT_CONST_ROUNDING); |
| |
| v[0] = _mm_srai_epi32(u[0], DCT_CONST_BITS); |
| v[1] = _mm_srai_epi32(u[1], DCT_CONST_BITS); |
| v[2] = _mm_srai_epi32(u[2], DCT_CONST_BITS); |
| v[3] = _mm_srai_epi32(u[3], DCT_CONST_BITS); |
| v[4] = _mm_srai_epi32(u[4], DCT_CONST_BITS); |
| v[5] = _mm_srai_epi32(u[5], DCT_CONST_BITS); |
| v[6] = _mm_srai_epi32(u[6], DCT_CONST_BITS); |
| v[7] = _mm_srai_epi32(u[7], DCT_CONST_BITS); |
| |
| t[2] = _mm_packs_epi32(v[0], v[1]); |
| t[3] = _mm_packs_epi32(v[2], v[3]); |
| t[4] = _mm_packs_epi32(v[4], v[5]); |
| t[5] = _mm_packs_epi32(v[6], v[7]); |
| |
| // stage 3 |
| p[0] = _mm_add_epi16(s[0], t[3]); |
| p[1] = _mm_add_epi16(s[1], t[2]); |
| p[2] = _mm_sub_epi16(s[1], t[2]); |
| p[3] = _mm_sub_epi16(s[0], t[3]); |
| p[4] = _mm_sub_epi16(s[7], t[4]); |
| p[5] = _mm_sub_epi16(s[6], t[5]); |
| p[6] = _mm_add_epi16(s[6], t[5]); |
| p[7] = _mm_add_epi16(s[7], t[4]); |
| |
| // stage 4 |
| u[0] = _mm_unpacklo_epi16(p[1], p[6]); |
| u[1] = _mm_unpackhi_epi16(p[1], p[6]); |
| u[2] = _mm_unpacklo_epi16(p[2], p[5]); |
| u[3] = _mm_unpackhi_epi16(p[2], p[5]); |
| |
| v[0] = _mm_madd_epi16(u[0], k__cospi_m08_p24); |
| v[1] = _mm_madd_epi16(u[1], k__cospi_m08_p24); |
| v[2] = _mm_madd_epi16(u[2], k__cospi_p24_p08); |
| v[3] = _mm_madd_epi16(u[3], k__cospi_p24_p08); |
| v[4] = _mm_madd_epi16(u[2], k__cospi_p08_m24); |
| v[5] = _mm_madd_epi16(u[3], k__cospi_p08_m24); |
| v[6] = _mm_madd_epi16(u[0], k__cospi_p24_p08); |
| v[7] = _mm_madd_epi16(u[1], k__cospi_p24_p08); |
| |
| u[0] = _mm_add_epi32(v[0], k__DCT_CONST_ROUNDING); |
| u[1] = _mm_add_epi32(v[1], k__DCT_CONST_ROUNDING); |
| u[2] = _mm_add_epi32(v[2], k__DCT_CONST_ROUNDING); |
| u[3] = _mm_add_epi32(v[3], k__DCT_CONST_ROUNDING); |
| u[4] = _mm_add_epi32(v[4], k__DCT_CONST_ROUNDING); |
| u[5] = _mm_add_epi32(v[5], k__DCT_CONST_ROUNDING); |
| u[6] = _mm_add_epi32(v[6], k__DCT_CONST_ROUNDING); |
| u[7] = _mm_add_epi32(v[7], k__DCT_CONST_ROUNDING); |
| |
| v[0] = _mm_srai_epi32(u[0], DCT_CONST_BITS); |
| v[1] = _mm_srai_epi32(u[1], DCT_CONST_BITS); |
| v[2] = _mm_srai_epi32(u[2], DCT_CONST_BITS); |
| v[3] = _mm_srai_epi32(u[3], DCT_CONST_BITS); |
| v[4] = _mm_srai_epi32(u[4], DCT_CONST_BITS); |
| v[5] = _mm_srai_epi32(u[5], DCT_CONST_BITS); |
| v[6] = _mm_srai_epi32(u[6], DCT_CONST_BITS); |
| v[7] = _mm_srai_epi32(u[7], DCT_CONST_BITS); |
| |
| t[1] = _mm_packs_epi32(v[0], v[1]); |
| t[2] = _mm_packs_epi32(v[2], v[3]); |
| t[5] = _mm_packs_epi32(v[4], v[5]); |
| t[6] = _mm_packs_epi32(v[6], v[7]); |
| |
| // stage 5 |
| s[0] = _mm_add_epi16(p[0], t[1]); |
| s[1] = _mm_sub_epi16(p[0], t[1]); |
| s[2] = _mm_add_epi16(p[3], t[2]); |
| s[3] = _mm_sub_epi16(p[3], t[2]); |
| s[4] = _mm_sub_epi16(p[4], t[5]); |
| s[5] = _mm_add_epi16(p[4], t[5]); |
| s[6] = _mm_sub_epi16(p[7], t[6]); |
| s[7] = _mm_add_epi16(p[7], t[6]); |
| |
| // stage 6 |
| u[0] = _mm_unpacklo_epi16(s[0], s[7]); |
| u[1] = _mm_unpackhi_epi16(s[0], s[7]); |
| u[2] = _mm_unpacklo_epi16(s[1], s[6]); |
| u[3] = _mm_unpackhi_epi16(s[1], s[6]); |
| u[4] = _mm_unpacklo_epi16(s[2], s[5]); |
| u[5] = _mm_unpackhi_epi16(s[2], s[5]); |
| u[6] = _mm_unpacklo_epi16(s[3], s[4]); |
| u[7] = _mm_unpackhi_epi16(s[3], s[4]); |
| |
| v[0] = _mm_madd_epi16(u[0], k__cospi_p30_p02); |
| v[1] = _mm_madd_epi16(u[1], k__cospi_p30_p02); |
| v[2] = _mm_madd_epi16(u[2], k__cospi_p14_p18); |
| v[3] = _mm_madd_epi16(u[3], k__cospi_p14_p18); |
| v[4] = _mm_madd_epi16(u[4], k__cospi_p22_p10); |
| v[5] = _mm_madd_epi16(u[5], k__cospi_p22_p10); |
| v[6] = _mm_madd_epi16(u[6], k__cospi_p06_p26); |
| v[7] = _mm_madd_epi16(u[7], k__cospi_p06_p26); |
| v[8] = _mm_madd_epi16(u[6], k__cospi_m26_p06); |
| v[9] = _mm_madd_epi16(u[7], k__cospi_m26_p06); |
| v[10] = _mm_madd_epi16(u[4], k__cospi_m10_p22); |
| v[11] = _mm_madd_epi16(u[5], k__cospi_m10_p22); |
| v[12] = _mm_madd_epi16(u[2], k__cospi_m18_p14); |
| v[13] = _mm_madd_epi16(u[3], k__cospi_m18_p14); |
| v[14] = _mm_madd_epi16(u[0], k__cospi_m02_p30); |
| v[15] = _mm_madd_epi16(u[1], k__cospi_m02_p30); |
| |
| u[0] = _mm_add_epi32(v[0], k__DCT_CONST_ROUNDING); |
| u[1] = _mm_add_epi32(v[1], k__DCT_CONST_ROUNDING); |
| u[2] = _mm_add_epi32(v[2], k__DCT_CONST_ROUNDING); |
| u[3] = _mm_add_epi32(v[3], k__DCT_CONST_ROUNDING); |
| u[4] = _mm_add_epi32(v[4], k__DCT_CONST_ROUNDING); |
| u[5] = _mm_add_epi32(v[5], k__DCT_CONST_ROUNDING); |
| u[6] = _mm_add_epi32(v[6], k__DCT_CONST_ROUNDING); |
| u[7] = _mm_add_epi32(v[7], k__DCT_CONST_ROUNDING); |
| u[8] = _mm_add_epi32(v[8], k__DCT_CONST_ROUNDING); |
| u[9] = _mm_add_epi32(v[9], k__DCT_CONST_ROUNDING); |
| u[10] = _mm_add_epi32(v[10], k__DCT_CONST_ROUNDING); |
| u[11] = _mm_add_epi32(v[11], k__DCT_CONST_ROUNDING); |
| u[12] = _mm_add_epi32(v[12], k__DCT_CONST_ROUNDING); |
| u[13] = _mm_add_epi32(v[13], k__DCT_CONST_ROUNDING); |
| u[14] = _mm_add_epi32(v[14], k__DCT_CONST_ROUNDING); |
| u[15] = _mm_add_epi32(v[15], k__DCT_CONST_ROUNDING); |
| |
| v[0] = _mm_srai_epi32(u[0], DCT_CONST_BITS); |
| v[1] = _mm_srai_epi32(u[1], DCT_CONST_BITS); |
| v[2] = _mm_srai_epi32(u[2], DCT_CONST_BITS); |
| v[3] = _mm_srai_epi32(u[3], DCT_CONST_BITS); |
| v[4] = _mm_srai_epi32(u[4], DCT_CONST_BITS); |
| v[5] = _mm_srai_epi32(u[5], DCT_CONST_BITS); |
| v[6] = _mm_srai_epi32(u[6], DCT_CONST_BITS); |
| v[7] = _mm_srai_epi32(u[7], DCT_CONST_BITS); |
| v[8] = _mm_srai_epi32(u[8], DCT_CONST_BITS); |
| v[9] = _mm_srai_epi32(u[9], DCT_CONST_BITS); |
| v[10] = _mm_srai_epi32(u[10], DCT_CONST_BITS); |
| v[11] = _mm_srai_epi32(u[11], DCT_CONST_BITS); |
| v[12] = _mm_srai_epi32(u[12], DCT_CONST_BITS); |
| v[13] = _mm_srai_epi32(u[13], DCT_CONST_BITS); |
| v[14] = _mm_srai_epi32(u[14], DCT_CONST_BITS); |
| v[15] = _mm_srai_epi32(u[15], DCT_CONST_BITS); |
| |
| in[1] = _mm_packs_epi32(v[0], v[1]); |
| in[9] = _mm_packs_epi32(v[2], v[3]); |
| in[5] = _mm_packs_epi32(v[4], v[5]); |
| in[13] = _mm_packs_epi32(v[6], v[7]); |
| in[3] = _mm_packs_epi32(v[8], v[9]); |
| in[11] = _mm_packs_epi32(v[10], v[11]); |
| in[7] = _mm_packs_epi32(v[12], v[13]); |
| in[15] = _mm_packs_epi32(v[14], v[15]); |
| } |
| |
| static void fadst16_8col(__m128i *in) { |
| // perform 16x16 1-D ADST for 8 columns |
| __m128i s[16], x[16], u[32], v[32]; |
| const __m128i k__cospi_p01_p31 = pair_set_epi16(cospi_1_64, cospi_31_64); |
| const __m128i k__cospi_p31_m01 = pair_set_epi16(cospi_31_64, -cospi_1_64); |
| const __m128i k__cospi_p05_p27 = pair_set_epi16(cospi_5_64, cospi_27_64); |
| const __m128i k__cospi_p27_m05 = pair_set_epi16(cospi_27_64, -cospi_5_64); |
| const __m128i k__cospi_p09_p23 = pair_set_epi16(cospi_9_64, cospi_23_64); |
| const __m128i k__cospi_p23_m09 = pair_set_epi16(cospi_23_64, -cospi_9_64); |
| const __m128i k__cospi_p13_p19 = pair_set_epi16(cospi_13_64, cospi_19_64); |
| const __m128i k__cospi_p19_m13 = pair_set_epi16(cospi_19_64, -cospi_13_64); |
| const __m128i k__cospi_p17_p15 = pair_set_epi16(cospi_17_64, cospi_15_64); |
| const __m128i k__cospi_p15_m17 = pair_set_epi16(cospi_15_64, -cospi_17_64); |
| const __m128i k__cospi_p21_p11 = pair_set_epi16(cospi_21_64, cospi_11_64); |
| const __m128i k__cospi_p11_m21 = pair_set_epi16(cospi_11_64, -cospi_21_64); |
| const __m128i k__cospi_p25_p07 = pair_set_epi16(cospi_25_64, cospi_7_64); |
| const __m128i k__cospi_p07_m25 = pair_set_epi16(cospi_7_64, -cospi_25_64); |
| const __m128i k__cospi_p29_p03 = pair_set_epi16(cospi_29_64, cospi_3_64); |
| const __m128i k__cospi_p03_m29 = pair_set_epi16(cospi_3_64, -cospi_29_64); |
| const __m128i k__cospi_p04_p28 = pair_set_epi16(cospi_4_64, cospi_28_64); |
| const __m128i k__cospi_p28_m04 = pair_set_epi16(cospi_28_64, -cospi_4_64); |
| const __m128i k__cospi_p20_p12 = pair_set_epi16(cospi_20_64, cospi_12_64); |
| const __m128i k__cospi_p12_m20 = pair_set_epi16(cospi_12_64, -cospi_20_64); |
| const __m128i k__cospi_m28_p04 = pair_set_epi16(-cospi_28_64, cospi_4_64); |
| const __m128i k__cospi_m12_p20 = pair_set_epi16(-cospi_12_64, cospi_20_64); |
| const __m128i k__cospi_p08_p24 = pair_set_epi16(cospi_8_64, cospi_24_64); |
| const __m128i k__cospi_p24_m08 = pair_set_epi16(cospi_24_64, -cospi_8_64); |
| const __m128i k__cospi_m24_p08 = pair_set_epi16(-cospi_24_64, cospi_8_64); |
| const __m128i k__cospi_m16_m16 = _mm_set1_epi16((int16_t)-cospi_16_64); |
| 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_m16_p16 = pair_set_epi16(-cospi_16_64, cospi_16_64); |
| const __m128i k__DCT_CONST_ROUNDING = _mm_set1_epi32(DCT_CONST_ROUNDING); |
| const __m128i kZero = _mm_set1_epi16(0); |
| |
| u[0] = _mm_unpacklo_epi16(in[15], in[0]); |
| u[1] = _mm_unpackhi_epi16(in[15], in[0]); |
| u[2] = _mm_unpacklo_epi16(in[13], in[2]); |
| u[3] = _mm_unpackhi_epi16(in[13], in[2]); |
| u[4] = _mm_unpacklo_epi16(in[11], in[4]); |
| u[5] = _mm_unpackhi_epi16(in[11], in[4]); |
| u[6] = _mm_unpacklo_epi16(in[9], in[6]); |
| u[7] = _mm_unpackhi_epi16(in[9], in[6]); |
| u[8] = _mm_unpacklo_epi16(in[7], in[8]); |
| u[9] = _mm_unpackhi_epi16(in[7], in[8]); |
| u[10] = _mm_unpacklo_epi16(in[5], in[10]); |
| u[11] = _mm_unpackhi_epi16(in[5], in[10]); |
| u[12] = _mm_unpacklo_epi16(in[3], in[12]); |
| u[13] = _mm_unpackhi_epi16(in[3], in[12]); |
| u[14] = _mm_unpacklo_epi16(in[1], in[14]); |
| u[15] = _mm_unpackhi_epi16(in[1], in[14]); |
| |
| v[0] = _mm_madd_epi16(u[0], k__cospi_p01_p31); |
| v[1] = _mm_madd_epi16(u[1], k__cospi_p01_p31); |
| v[2] = _mm_madd_epi16(u[0], k__cospi_p31_m01); |
| v[3] = _mm_madd_epi16(u[1], k__cospi_p31_m01); |
| v[4] = _mm_madd_epi16(u[2], k__cospi_p05_p27); |
| v[5] = _mm_madd_epi16(u[3], k__cospi_p05_p27); |
| v[6] = _mm_madd_epi16(u[2], k__cospi_p27_m05); |
| v[7] = _mm_madd_epi16(u[3], k__cospi_p27_m05); |
| v[8] = _mm_madd_epi16(u[4], k__cospi_p09_p23); |
| v[9] = _mm_madd_epi16(u[5], k__cospi_p09_p23); |
| v[10] = _mm_madd_epi16(u[4], k__cospi_p23_m09); |
| v[11] = _mm_madd_epi16(u[5], k__cospi_p23_m09); |
| v[12] = _mm_madd_epi16(u[6], k__cospi_p13_p19); |
| v[13] = _mm_madd_epi16(u[7], k__cospi_p13_p19); |
| v[14] = _mm_madd_epi16(u[6], k__cospi_p19_m13); |
| v[15] = _mm_madd_epi16(u[7], k__cospi_p19_m13); |
| v[16] = _mm_madd_epi16(u[8], k__cospi_p17_p15); |
| v[17] = _mm_madd_epi16(u[9], k__cospi_p17_p15); |
| v[18] = _mm_madd_epi16(u[8], k__cospi_p15_m17); |
| v[19] = _mm_madd_epi16(u[9], k__cospi_p15_m17); |
| v[20] = _mm_madd_epi16(u[10], k__cospi_p21_p11); |
| v[21] = _mm_madd_epi16(u[11], k__cospi_p21_p11); |
| v[22] = _mm_madd_epi16(u[10], k__cospi_p11_m21); |
| v[23] = _mm_madd_epi16(u[11], k__cospi_p11_m21); |
| v[24] = _mm_madd_epi16(u[12], k__cospi_p25_p07); |
| v[25] = _mm_madd_epi16(u[13], k__cospi_p25_p07); |
| v[26] = _mm_madd_epi16(u[12], k__cospi_p07_m25); |
| v[27] = _mm_madd_epi16(u[13], k__cospi_p07_m25); |
| v[28] = _mm_madd_epi16(u[14], k__cospi_p29_p03); |
| v[29] = _mm_madd_epi16(u[15], k__cospi_p29_p03); |
| v[30] = _mm_madd_epi16(u[14], k__cospi_p03_m29); |
| v[31] = _mm_madd_epi16(u[15], k__cospi_p03_m29); |
| |
| u[0] = _mm_add_epi32(v[0], v[16]); |
| u[1] = _mm_add_epi32(v[1], v[17]); |
| u[2] = _mm_add_epi32(v[2], v[18]); |
| u[3] = _mm_add_epi32(v[3], v[19]); |
| u[4] = _mm_add_epi32(v[4], v[20]); |
| u[5] = _mm_add_epi32(v[5], v[21]); |
| u[6] = _mm_add_epi32(v[6], v[22]); |
| u[7] = _mm_add_epi32(v[7], v[23]); |
| u[8] = _mm_add_epi32(v[8], v[24]); |
| u[9] = _mm_add_epi32(v[9], v[25]); |
| u[10] = _mm_add_epi32(v[10], v[26]); |
| u[11] = _mm_add_epi32(v[11], v[27]); |
| u[12] = _mm_add_epi32(v[12], v[28]); |
| u[13] = _mm_add_epi32(v[13], v[29]); |
| u[14] = _mm_add_epi32(v[14], v[30]); |
| u[15] = _mm_add_epi32(v[15], v[31]); |
| u[16] = _mm_sub_epi32(v[0], v[16]); |
| u[17] = _mm_sub_epi32(v[1], v[17]); |
| u[18] = _mm_sub_epi32(v[2], v[18]); |
| u[19] = _mm_sub_epi32(v[3], v[19]); |
| u[20] = _mm_sub_epi32(v[4], v[20]); |
| u[21] = _mm_sub_epi32(v[5], v[21]); |
| u[22] = _mm_sub_epi32(v[6], v[22]); |
| u[23] = _mm_sub_epi32(v[7], v[23]); |
| u[24] = _mm_sub_epi32(v[8], v[24]); |
| u[25] = _mm_sub_epi32(v[9], v[25]); |
| u[26] = _mm_sub_epi32(v[10], v[26]); |
| u[27] = _mm_sub_epi32(v[11], v[27]); |
| u[28] = _mm_sub_epi32(v[12], v[28]); |
| u[29] = _mm_sub_epi32(v[13], v[29]); |
| u[30] = _mm_sub_epi32(v[14], v[30]); |
| u[31] = _mm_sub_epi32(v[15], v[31]); |
| |
| v[0] = _mm_add_epi32(u[0], k__DCT_CONST_ROUNDING); |
| v[1] = _mm_add_epi32(u[1], k__DCT_CONST_ROUNDING); |
| v[2] = _mm_add_epi32(u[2], k__DCT_CONST_ROUNDING); |
| v[3] = _mm_add_epi32(u[3], k__DCT_CONST_ROUNDING); |
| v[4] = _mm_add_epi32(u[4], k__DCT_CONST_ROUNDING); |
| v[5] = _mm_add_epi32(u[5], k__DCT_CONST_ROUNDING); |
| v[6] = _mm_add_epi32(u[6], k__DCT_CONST_ROUNDING); |
| v[7] = _mm_add_epi32(u[7], k__DCT_CONST_ROUNDING); |
| v[8] = _mm_add_epi32(u[8], k__DCT_CONST_ROUNDING); |
| v[9] = _mm_add_epi32(u[9], k__DCT_CONST_ROUNDING); |
| v[10] = _mm_add_epi32(u[10], k__DCT_CONST_ROUNDING); |
| v[11] = _mm_add_epi32(u[11], k__DCT_CONST_ROUNDING); |
| v[12] = _mm_add_epi32(u[12], k__DCT_CONST_ROUNDING); |
| v[13] = _mm_add_epi32(u[13], k__DCT_CONST_ROUNDING); |
| v[14] = _mm_add_epi32(u[14], k__DCT_CONST_ROUNDING); |
| v[15] = _mm_add_epi32(u[15], k__DCT_CONST_ROUNDING); |
| v[16] = _mm_add_epi32(u[16], k__DCT_CONST_ROUNDING); |
| v[17] = _mm_add_epi32(u[17], k__DCT_CONST_ROUNDING); |
| v[18] = _mm_add_epi32(u[18], k__DCT_CONST_ROUNDING); |
| v[19] = _mm_add_epi32(u[19], k__DCT_CONST_ROUNDING); |
| v[20] = _mm_add_epi32(u[20], k__DCT_CONST_ROUNDING); |
| v[21] = _mm_add_epi32(u[21], k__DCT_CONST_ROUNDING); |
| v[22] = _mm_add_epi32(u[22], k__DCT_CONST_ROUNDING); |
| v[23] = _mm_add_epi32(u[23], k__DCT_CONST_ROUNDING); |
| v[24] = _mm_add_epi32(u[24], k__DCT_CONST_ROUNDING); |
| v[25] = _mm_add_epi32(u[25], k__DCT_CONST_ROUNDING); |
| v[26] = _mm_add_epi32(u[26], k__DCT_CONST_ROUNDING); |
| v[27] = _mm_add_epi32(u[27], k__DCT_CONST_ROUNDING); |
| v[28] = _mm_add_epi32(u[28], k__DCT_CONST_ROUNDING); |
| v[29] = _mm_add_epi32(u[29], k__DCT_CONST_ROUNDING); |
| v[30] = _mm_add_epi32(u[30], k__DCT_CONST_ROUNDING); |
| v[31] = _mm_add_epi32(u[31], k__DCT_CONST_ROUNDING); |
| |
| u[0] = _mm_srai_epi32(v[0], DCT_CONST_BITS); |
| u[1] = _mm_srai_epi32(v[1], DCT_CONST_BITS); |
| u[2] = _mm_srai_epi32(v[2], DCT_CONST_BITS); |
| u[3] = _mm_srai_epi32(v[3], DCT_CONST_BITS); |
| u[4] = _mm_srai_epi32(v[4], DCT_CONST_BITS); |
| u[5] = _mm_srai_epi32(v[5], DCT_CONST_BITS); |
| u[6] = _mm_srai_epi32(v[6], DCT_CONST_BITS); |
| u[7] = _mm_srai_epi32(v[7], DCT_CONST_BITS); |
| u[8] = _mm_srai_epi32(v[8], DCT_CONST_BITS); |
| u[9] = _mm_srai_epi32(v[9], DCT_CONST_BITS); |
| u[10] = _mm_srai_epi32(v[10], DCT_CONST_BITS); |
| u[11] = _mm_srai_epi32(v[11], DCT_CONST_BITS); |
| u[12] = _mm_srai_epi32(v[12], DCT_CONST_BITS); |
| u[13] = _mm_srai_epi32(v[13], DCT_CONST_BITS); |
| u[14] = _mm_srai_epi32(v[14], DCT_CONST_BITS); |
| u[15] = _mm_srai_epi32(v[15], DCT_CONST_BITS); |
| u[16] = _mm_srai_epi32(v[16], DCT_CONST_BITS); |
| u[17] = _mm_srai_epi32(v[17], DCT_CONST_BITS); |
| u[18] = _mm_srai_epi32(v[18], DCT_CONST_BITS); |
| u[19] = _mm_srai_epi32(v[19], DCT_CONST_BITS); |
| u[20] = _mm_srai_epi32(v[20], DCT_CONST_BITS); |
| u[21] = _mm_srai_epi32(v[21], DCT_CONST_BITS); |
| u[22] = _mm_srai_epi32(v[22], DCT_CONST_BITS); |
| u[23] = _mm_srai_epi32(v[23], DCT_CONST_BITS); |
| u[24] = _mm_srai_epi32(v[24], DCT_CONST_BITS); |
| u[25] = _mm_srai_epi32(v[25], DCT_CONST_BITS); |
| u[26] = _mm_srai_epi32(v[26], DCT_CONST_BITS); |
| u[27] = _mm_srai_epi32(v[27], DCT_CONST_BITS); |
| u[28] = _mm_srai_epi32(v[28], DCT_CONST_BITS); |
| u[29] = _mm_srai_epi32(v[29], DCT_CONST_BITS); |
| u[30] = _mm_srai_epi32(v[30], DCT_CONST_BITS); |
| u[31] = _mm_srai_epi32(v[31], DCT_CONST_BITS); |
| |
| s[0] = _mm_packs_epi32(u[0], u[1]); |
| s[1] = _mm_packs_epi32(u[2], u[3]); |
| s[2] = _mm_packs_epi32(u[4], u[5]); |
| s[3] = _mm_packs_epi32(u[6], u[7]); |
| s[4] = _mm_packs_epi32(u[8], u[9]); |
| s[5] = _mm_packs_epi32(u[10], u[11]); |
| s[6] = _mm_packs_epi32(u[12], u[13]); |
| s[7] = _mm_packs_epi32(u[14], u[15]); |
| s[8] = _mm_packs_epi32(u[16], u[17]); |
| s[9] = _mm_packs_epi32(u[18], u[19]); |
| s[10] = _mm_packs_epi32(u[20], u[21]); |
| s[11] = _mm_packs_epi32(u[22], u[23]); |
| s[12] = _mm_packs_epi32(u[24], u[25]); |
| s[13] = _mm_packs_epi32(u[26], u[27]); |
| s[14] = _mm_packs_epi32(u[28], u[29]); |
| s[15] = _mm_packs_epi32(u[30], u[31]); |
| |
| // stage 2 |
| u[0] = _mm_unpacklo_epi16(s[8], s[9]); |
| u[1] = _mm_unpackhi_epi16(s[8], s[9]); |
| u[2] = _mm_unpacklo_epi16(s[10], s[11]); |
| u[3] = _mm_unpackhi_epi16(s[10], s[11]); |
| u[4] = _mm_unpacklo_epi16(s[12], s[13]); |
| u[5] = _mm_unpackhi_epi16(s[12], s[13]); |
| u[6] = _mm_unpacklo_epi16(s[14], s[15]); |
| u[7] = _mm_unpackhi_epi16(s[14], s[15]); |
| |
| v[0] = _mm_madd_epi16(u[0], k__cospi_p04_p28); |
| v[1] = _mm_madd_epi16(u[1], k__cospi_p04_p28); |
| v[2] = _mm_madd_epi16(u[0], k__cospi_p28_m04); |
| v[3] = _mm_madd_epi16(u[1], k__cospi_p28_m04); |
| v[4] = _mm_madd_epi16(u[2], k__cospi_p20_p12); |
| v[5] = _mm_madd_epi16(u[3], k__cospi_p20_p12); |
| v[6] = _mm_madd_epi16(u[2], k__cospi_p12_m20); |
| v[7] = _mm_madd_epi16(u[3], k__cospi_p12_m20); |
| v[8] = _mm_madd_epi16(u[4], k__cospi_m28_p04); |
| v[9] = _mm_madd_epi16(u[5], k__cospi_m28_p04); |
| v[10] = _mm_madd_epi16(u[4], k__cospi_p04_p28); |
| v[11] = _mm_madd_epi16(u[5], k__cospi_p04_p28); |
| v[12] = _mm_madd_epi16(u[6], k__cospi_m12_p20); |
| v[13] = _mm_madd_epi16(u[7], k__cospi_m12_p20); |
| v[14] = _mm_madd_epi16(u[6], k__cospi_p20_p12); |
| v[15] = _mm_madd_epi16(u[7], k__cospi_p20_p12); |
| |
| u[0] = _mm_add_epi32(v[0], v[8]); |
| u[1] = _mm_add_epi32(v[1], v[9]); |
| u[2] = _mm_add_epi32(v[2], v[10]); |
| u[3] = _mm_add_epi32(v[3], v[11]); |
| u[4] = _mm_add_epi32(v[4], v[12]); |
| u[5] = _mm_add_epi32(v[5], v[13]); |
| u[6] = _mm_add_epi32(v[6], v[14]); |
| u[7] = _mm_add_epi32(v[7], v[15]); |
| u[8] = _mm_sub_epi32(v[0], v[8]); |
| u[9] = _mm_sub_epi32(v[1], v[9]); |
| u[10] = _mm_sub_epi32(v[2], v[10]); |
| u[11] = _mm_sub_epi32(v[3], v[11]); |
| u[12] = _mm_sub_epi32(v[4], v[12]); |
| u[13] = _mm_sub_epi32(v[5], v[13]); |
| u[14] = _mm_sub_epi32(v[6], v[14]); |
| u[15] = _mm_sub_epi32(v[7], v[15]); |
| |
| v[0] = _mm_add_epi32(u[0], k__DCT_CONST_ROUNDING); |
| v[1] = _mm_add_epi32(u[1], k__DCT_CONST_ROUNDING); |
| v[2] = _mm_add_epi32(u[2], k__DCT_CONST_ROUNDING); |
| v[3] = _mm_add_epi32(u[3], k__DCT_CONST_ROUNDING); |
| v[4] = _mm_add_epi32(u[4], k__DCT_CONST_ROUNDING); |
| v[5] = _mm_add_epi32(u[5], k__DCT_CONST_ROUNDING); |
| v[6] = _mm_add_epi32(u[6], k__DCT_CONST_ROUNDING); |
| v[7] = _mm_add_epi32(u[7], k__DCT_CONST_ROUNDING); |
| v[8] = _mm_add_epi32(u[8], k__DCT_CONST_ROUNDING); |
| v[9] = _mm_add_epi32(u[9], k__DCT_CONST_ROUNDING); |
| v[10] = _mm_add_epi32(u[10], k__DCT_CONST_ROUNDING); |
| v[11] = _mm_add_epi32(u[11], k__DCT_CONST_ROUNDING); |
| v[12] = _mm_add_epi32(u[12], k__DCT_CONST_ROUNDING); |
| v[13] = _mm_add_epi32(u[13], k__DCT_CONST_ROUNDING); |
| v[14] = _mm_add_epi32(u[14], k__DCT_CONST_ROUNDING); |
| v[15] = _mm_add_epi32(u[15], k__DCT_CONST_ROUNDING); |
| |
| u[0] = _mm_srai_epi32(v[0], DCT_CONST_BITS); |
| u[1] = _mm_srai_epi32(v[1], DCT_CONST_BITS); |
| u[2] = _mm_srai_epi32(v[2], DCT_CONST_BITS); |
| u[3] = _mm_srai_epi32(v[3], DCT_CONST_BITS); |
| u[4] = _mm_srai_epi32(v[4], DCT_CONST_BITS); |
| u[5] = _mm_srai_epi32(v[5], DCT_CONST_BITS); |
| u[6] = _mm_srai_epi32(v[6], DCT_CONST_BITS); |
| u[7] = _mm_srai_epi32(v[7], DCT_CONST_BITS); |
| u[8] = _mm_srai_epi32(v[8], DCT_CONST_BITS); |
| u[9] = _mm_srai_epi32(v[9], DCT_CONST_BITS); |
| u[10] = _mm_srai_epi32(v[10], DCT_CONST_BITS); |
| u[11] = _mm_srai_epi32(v[11], DCT_CONST_BITS); |
| u[12] = _mm_srai_epi32(v[12], DCT_CONST_BITS); |
| u[13] = _mm_srai_epi32(v[13], DCT_CONST_BITS); |
| u[14] = _mm_srai_epi32(v[14], DCT_CONST_BITS); |
| u[15] = _mm_srai_epi32(v[15], DCT_CONST_BITS); |
| |
| x[0] = _mm_add_epi16(s[0], s[4]); |
| x[1] = _mm_add_epi16(s[1], s[5]); |
| x[2] = _mm_add_epi16(s[2], s[6]); |
| x[3] = _mm_add_epi16(s[3], s[7]); |
| x[4] = _mm_sub_epi16(s[0], s[4]); |
| x[5] = _mm_sub_epi16(s[1], s[5]); |
| x[6] = _mm_sub_epi16(s[2], s[6]); |
| x[7] = _mm_sub_epi16(s[3], s[7]); |
| x[8] = _mm_packs_epi32(u[0], u[1]); |
| x[9] = _mm_packs_epi32(u[2], u[3]); |
| x[10] = _mm_packs_epi32(u[4], u[5]); |
| x[11] = _mm_packs_epi32(u[6], u[7]); |
| x[12] = _mm_packs_epi32(u[8], u[9]); |
| x[13] = _mm_packs_epi32(u[10], u[11]); |
| x[14] = _mm_packs_epi32(u[12], u[13]); |
| x[15] = _mm_packs_epi32(u[14], u[15]); |
| |
| // stage 3 |
| u[0] = _mm_unpacklo_epi16(x[4], x[5]); |
| u[1] = _mm_unpackhi_epi16(x[4], x[5]); |
| u[2] = _mm_unpacklo_epi16(x[6], x[7]); |
| u[3] = _mm_unpackhi_epi16(x[6], x[7]); |
| u[4] = _mm_unpacklo_epi16(x[12], x[13]); |
| u[5] = _mm_unpackhi_epi16(x[12], x[13]); |
| u[6] = _mm_unpacklo_epi16(x[14], x[15]); |
| u[7] = _mm_unpackhi_epi16(x[14], x[15]); |
| |
| v[0] = _mm_madd_epi16(u[0], k__cospi_p08_p24); |
| v[1] = _mm_madd_epi16(u[1], k__cospi_p08_p24); |
| v[2] = _mm_madd_epi16(u[0], k__cospi_p24_m08); |
| v[3] = _mm_madd_epi16(u[1], k__cospi_p24_m08); |
| v[4] = _mm_madd_epi16(u[2], k__cospi_m24_p08); |
| v[5] = _mm_madd_epi16(u[3], k__cospi_m24_p08); |
| v[6] = _mm_madd_epi16(u[2], k__cospi_p08_p24); |
| v[7] = _mm_madd_epi16(u[3], k__cospi_p08_p24); |
| v[8] = _mm_madd_epi16(u[4], k__cospi_p08_p24); |
| v[9] = _mm_madd_epi16(u[5], k__cospi_p08_p24); |
| v[10] = _mm_madd_epi16(u[4], k__cospi_p24_m08); |
| v[11] = _mm_madd_epi16(u[5], k__cospi_p24_m08); |
| v[12] = _mm_madd_epi16(u[6], k__cospi_m24_p08); |
| v[13] = _mm_madd_epi16(u[7], k__cospi_m24_p08); |
| v[14] = _mm_madd_epi16(u[6], k__cospi_p08_p24); |
| v[15] = _mm_madd_epi16(u[7], k__cospi_p08_p24); |
| |
| u[0] = _mm_add_epi32(v[0], v[4]); |
| u[1] = _mm_add_epi32(v[1], v[5]); |
| u[2] = _mm_add_epi32(v[2], v[6]); |
| u[3] = _mm_add_epi32(v[3], v[7]); |
| u[4] = _mm_sub_epi32(v[0], v[4]); |
| u[5] = _mm_sub_epi32(v[1], v[5]); |
| u[6] = _mm_sub_epi32(v[2], v[6]); |
| u[7] = _mm_sub_epi32(v[3], v[7]); |
| u[8] = _mm_add_epi32(v[8], v[12]); |
| u[9] = _mm_add_epi32(v[9], v[13]); |
| u[10] = _mm_add_epi32(v[10], v[14]); |
| u[11] = _mm_add_epi32(v[11], v[15]); |
| u[12] = _mm_sub_epi32(v[8], v[12]); |
| u[13] = _mm_sub_epi32(v[9], v[13]); |
| u[14] = _mm_sub_epi32(v[10], v[14]); |
| u[15] = _mm_sub_epi32(v[11], v[15]); |
| |
| u[0] = _mm_add_epi32(u[0], k__DCT_CONST_ROUNDING); |
| u[1] = _mm_add_epi32(u[1], k__DCT_CONST_ROUNDING); |
| u[2] = _mm_add_epi32(u[2], k__DCT_CONST_ROUNDING); |
| u[3] = _mm_add_epi32(u[3], k__DCT_CONST_ROUNDING); |
| u[4] = _mm_add_epi32(u[4], k__DCT_CONST_ROUNDING); |
| u[5] = _mm_add_epi32(u[5], k__DCT_CONST_ROUNDING); |
| u[6] = _mm_add_epi32(u[6], k__DCT_CONST_ROUNDING); |
| u[7] = _mm_add_epi32(u[7], k__DCT_CONST_ROUNDING); |
| u[8] = _mm_add_epi32(u[8], k__DCT_CONST_ROUNDING); |
| u[9] = _mm_add_epi32(u[9], k__DCT_CONST_ROUNDING); |
| u[10] = _mm_add_epi32(u[10], k__DCT_CONST_ROUNDING); |
| u[11] = _mm_add_epi32(u[11], k__DCT_CONST_ROUNDING); |
| u[12] = _mm_add_epi32(u[12], k__DCT_CONST_ROUNDING); |
| u[13] = _mm_add_epi32(u[13], k__DCT_CONST_ROUNDING); |
| u[14] = _mm_add_epi32(u[14], k__DCT_CONST_ROUNDING); |
| u[15] = _mm_add_epi32(u[15], k__DCT_CONST_ROUNDING); |
| |
| v[0] = _mm_srai_epi32(u[0], DCT_CONST_BITS); |
| v[1] = _mm_srai_epi32(u[1], DCT_CONST_BITS); |
| v[2] = _mm_srai_epi32(u[2], DCT_CONST_BITS); |
| v[3] = _mm_srai_epi32(u[3], DCT_CONST_BITS); |
| v[4] = _mm_srai_epi32(u[4], DCT_CONST_BITS); |
| v[5] = _mm_srai_epi32(u[5], DCT_CONST_BITS); |
| v[6] = _mm_srai_epi32(u[6], DCT_CONST_BITS); |
| v[7] = _mm_srai_epi32(u[7], DCT_CONST_BITS); |
| v[8] = _mm_srai_epi32(u[8], DCT_CONST_BITS); |
| v[9] = _mm_srai_epi32(u[9], DCT_CONST_BITS); |
| v[10] = _mm_srai_epi32(u[10], DCT_CONST_BITS); |
| v[11] = _mm_srai_epi32(u[11], DCT_CONST_BITS); |
| v[12] = _mm_srai_epi32(u[12], DCT_CONST_BITS); |
| v[13] = _mm_srai_epi32(u[13], DCT_CONST_BITS); |
| v[14] = _mm_srai_epi32(u[14], DCT_CONST_BITS); |
| v[15] = _mm_srai_epi32(u[15], DCT_CONST_BITS); |
| |
| s[0] = _mm_add_epi16(x[0], x[2]); |
| s[1] = _mm_add_epi16(x[1], x[3]); |
| s[2] = _mm_sub_epi16(x[0], x[2]); |
| s[3] = _mm_sub_epi16(x[1], x[3]); |
| s[4] = _mm_packs_epi32(v[0], v[1]); |
| s[5] = _mm_packs_epi32(v[2], v[3]); |
| s[6] = _mm_packs_epi32(v[4], v[5]); |
| s[7] = _mm_packs_epi32(v[6], v[7]); |
| s[8] = _mm_add_epi16(x[8], x[10]); |
| s[9] = _mm_add_epi16(x[9], x[11]); |
| s[10] = _mm_sub_epi16(x[8], x[10]); |
| s[11] = _mm_sub_epi16(x[9], x[11]); |
| s[12] = _mm_packs_epi32(v[8], v[9]); |
| s[13] = _mm_packs_epi32(v[10], v[11]); |
| s[14] = _mm_packs_epi32(v[12], v[13]); |
| s[15] = _mm_packs_epi32(v[14], v[15]); |
| |
| // stage 4 |
| u[0] = _mm_unpacklo_epi16(s[2], s[3]); |
| u[1] = _mm_unpackhi_epi16(s[2], s[3]); |
| u[2] = _mm_unpacklo_epi16(s[6], s[7]); |
| u[3] = _mm_unpackhi_epi16(s[6], s[7]); |
| u[4] = _mm_unpacklo_epi16(s[10], s[11]); |
| u[5] = _mm_unpackhi_epi16(s[10], s[11]); |
| u[6] = _mm_unpacklo_epi16(s[14], s[15]); |
| u[7] = _mm_unpackhi_epi16(s[14], s[15]); |
| |
| v[0] = _mm_madd_epi16(u[0], k__cospi_m16_m16); |
| v[1] = _mm_madd_epi16(u[1], k__cospi_m16_m16); |
| v[2] = _mm_madd_epi16(u[0], k__cospi_p16_m16); |
| v[3] = _mm_madd_epi16(u[1], k__cospi_p16_m16); |
| v[4] = _mm_madd_epi16(u[2], k__cospi_p16_p16); |
| v[5] = _mm_madd_epi16(u[3], k__cospi_p16_p16); |
| v[6] = _mm_madd_epi16(u[2], k__cospi_m16_p16); |
| v[7] = _mm_madd_epi16(u[3], k__cospi_m16_p16); |
| v[8] = _mm_madd_epi16(u[4], k__cospi_p16_p16); |
| v[9] = _mm_madd_epi16(u[5], k__cospi_p16_p16); |
| v[10] = _mm_madd_epi16(u[4], k__cospi_m16_p16); |
| v[11] = _mm_madd_epi16(u[5], k__cospi_m16_p16); |
| v[12] = _mm_madd_epi16(u[6], k__cospi_m16_m16); |
| v[13] = _mm_madd_epi16(u[7], k__cospi_m16_m16); |
| v[14] = _mm_madd_epi16(u[6], k__cospi_p16_m16); |
| v[15] = _mm_madd_epi16(u[7], k__cospi_p16_m16); |
| |
| u[0] = _mm_add_epi32(v[0], k__DCT_CONST_ROUNDING); |
| u[1] = _mm_add_epi32(v[1], k__DCT_CONST_ROUNDING); |
| u[2] = _mm_add_epi32(v[2], k__DCT_CONST_ROUNDING); |
| u[3] = _mm_add_epi32(v[3], k__DCT_CONST_ROUNDING); |
| u[4] = _mm_add_epi32(v[4], k__DCT_CONST_ROUNDING); |
| u[5] = _mm_add_epi32(v[5], k__DCT_CONST_ROUNDING); |
| u[6] = _mm_add_epi32(v[6], k__DCT_CONST_ROUNDING); |
| u[7] = _mm_add_epi32(v[7], k__DCT_CONST_ROUNDING); |
| u[8] = _mm_add_epi32(v[8], k__DCT_CONST_ROUNDING); |
| u[9] = _mm_add_epi32(v[9], k__DCT_CONST_ROUNDING); |
| u[10] = _mm_add_epi32(v[10], k__DCT_CONST_ROUNDING); |
| u[11] = _mm_add_epi32(v[11], k__DCT_CONST_ROUNDING); |
| u[12] = _mm_add_epi32(v[12], k__DCT_CONST_ROUNDING); |
| u[13] = _mm_add_epi32(v[13], k__DCT_CONST_ROUNDING); |
| u[14] = _mm_add_epi32(v[14], k__DCT_CONST_ROUNDING); |
| u[15] = _mm_add_epi32(v[15], k__DCT_CONST_ROUNDING); |
| |
| v[0] = _mm_srai_epi32(u[0], DCT_CONST_BITS); |
| v[1] = _mm_srai_epi32(u[1], DCT_CONST_BITS); |
| v[2] = _mm_srai_epi32(u[2], DCT_CONST_BITS); |
| v[3] = _mm_srai_epi32(u[3], DCT_CONST_BITS); |
| v[4] = _mm_srai_epi32(u[4], DCT_CONST_BITS); |
| v[5] = _mm_srai_epi32(u[5], DCT_CONST_BITS); |
| v[6] = _mm_srai_epi32(u[6], DCT_CONST_BITS); |
| v[7] = _mm_srai_epi32(u[7], DCT_CONST_BITS); |
| v[8] = _mm_srai_epi32(u[8], DCT_CONST_BITS); |
| v[9] = _mm_srai_epi32(u[9], DCT_CONST_BITS); |
| v[10] = _mm_srai_epi32(u[10], DCT_CONST_BITS); |
| v[11] = _mm_srai_epi32(u[11], DCT_CONST_BITS); |
| v[12] = _mm_srai_epi32(u[12], DCT_CONST_BITS); |
| v[13] = _mm_srai_epi32(u[13], DCT_CONST_BITS); |
| v[14] = _mm_srai_epi32(u[14], DCT_CONST_BITS); |
| v[15] = _mm_srai_epi32(u[15], DCT_CONST_BITS); |
| |
| in[0] = s[0]; |
| in[1] = _mm_sub_epi16(kZero, s[8]); |
| in[2] = s[12]; |
| in[3] = _mm_sub_epi16(kZero, s[4]); |
| in[4] = _mm_packs_epi32(v[4], v[5]); |
| in[5] = _mm_packs_epi32(v[12], v[13]); |
| in[6] = _mm_packs_epi32(v[8], v[9]); |
| in[7] = _mm_packs_epi32(v[0], v[1]); |
| in[8] = _mm_packs_epi32(v[2], v[3]); |
| in[9] = _mm_packs_epi32(v[10], v[11]); |
| in[10] = _mm_packs_epi32(v[14], v[15]); |
| in[11] = _mm_packs_epi32(v[6], v[7]); |
| in[12] = s[5]; |
| in[13] = _mm_sub_epi16(kZero, s[13]); |
| in[14] = s[9]; |
| in[15] = _mm_sub_epi16(kZero, s[1]); |
| } |
| |
| static void fdct16_sse2(__m128i *in0, __m128i *in1) { |
| fdct16_8col(in0); |
| fdct16_8col(in1); |
| array_transpose_16x16(in0, in1); |
| } |
| |
| static void fadst16_sse2(__m128i *in0, __m128i *in1) { |
| fadst16_8col(in0); |
| fadst16_8col(in1); |
| array_transpose_16x16(in0, in1); |
| } |
| |
| void vp9_fht16x16_sse2(const int16_t *input, tran_low_t *output, |
| int stride, int tx_type) { |
| __m128i in0[16], in1[16]; |
| |
| switch (tx_type) { |
| case DCT_DCT: |
| vpx_fdct16x16_sse2(input, output, stride); |
| break; |
| case ADST_DCT: |
| load_buffer_16x16(input, in0, in1, stride); |
| fadst16_sse2(in0, in1); |
| right_shift_16x16(in0, in1); |
| fdct16_sse2(in0, in1); |
| write_buffer_16x16(output, in0, in1, 16); |
| break; |
| case DCT_ADST: |
| load_buffer_16x16(input, in0, in1, stride); |
| fdct16_sse2(in0, in1); |
| right_shift_16x16(in0, in1); |
| fadst16_sse2(in0, in1); |
| write_buffer_16x16(output, in0, in1, 16); |
| break; |
| case ADST_ADST: |
| load_buffer_16x16(input, in0, in1, stride); |
| fadst16_sse2(in0, in1); |
| right_shift_16x16(in0, in1); |
| fadst16_sse2(in0, in1); |
| write_buffer_16x16(output, in0, in1, 16); |
| break; |
| default: |
| assert(0); |
| break; |
| } |
| } |
