76a3d3fcc5
BUG=webm:1450 Change-Id: Ib046fe28caec5b9ebdc9d0152df7c54ff4266858
710 lines
28 KiB
C
710 lines
28 KiB
C
/*
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* Copyright (c) 2015 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef VPX_DSP_X86_INV_TXFM_SSE2_H_
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#define VPX_DSP_X86_INV_TXFM_SSE2_H_
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#include <emmintrin.h> // SSE2
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#include "./vpx_config.h"
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#include "vpx/vpx_integer.h"
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#include "vpx_dsp/inv_txfm.h"
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#include "vpx_dsp/x86/transpose_sse2.h"
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#include "vpx_dsp/x86/txfm_common_sse2.h"
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static INLINE void idct8x8_12_transpose_16bit_4x8(const __m128i *const in,
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__m128i *const out) {
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// Unpack 16 bit elements. Goes from:
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// in[0]: 30 31 32 33 00 01 02 03
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// in[1]: 20 21 22 23 10 11 12 13
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// in[2]: 40 41 42 43 70 71 72 73
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// in[3]: 50 51 52 53 60 61 62 63
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// to:
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// tr0_0: 00 10 01 11 02 12 03 13
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// tr0_1: 20 30 21 31 22 32 23 33
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// tr0_2: 40 50 41 51 42 52 43 53
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// tr0_3: 60 70 61 71 62 72 63 73
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const __m128i tr0_0 = _mm_unpackhi_epi16(in[0], in[1]);
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const __m128i tr0_1 = _mm_unpacklo_epi16(in[1], in[0]);
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const __m128i tr0_2 = _mm_unpacklo_epi16(in[2], in[3]);
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const __m128i tr0_3 = _mm_unpackhi_epi16(in[3], in[2]);
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// Unpack 32 bit elements resulting in:
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// tr1_0: 00 10 20 30 01 11 21 31
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// tr1_1: 02 12 22 32 03 13 23 33
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// tr1_2: 40 50 60 70 41 51 61 71
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// tr1_3: 42 52 62 72 43 53 63 73
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const __m128i tr1_0 = _mm_unpacklo_epi32(tr0_0, tr0_1);
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const __m128i tr1_1 = _mm_unpacklo_epi32(tr0_2, tr0_3);
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const __m128i tr1_2 = _mm_unpackhi_epi32(tr0_0, tr0_1);
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const __m128i tr1_3 = _mm_unpackhi_epi32(tr0_2, tr0_3);
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// Unpack 64 bit elements resulting in:
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// out[0]: 00 10 20 30 40 50 60 70
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// out[1]: 01 11 21 31 41 51 61 71
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// out[2]: 02 12 22 32 42 52 62 72
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// out[3]: 03 13 23 33 43 53 63 73
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out[0] = _mm_unpacklo_epi64(tr1_0, tr1_1);
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out[1] = _mm_unpackhi_epi64(tr1_0, tr1_1);
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out[2] = _mm_unpacklo_epi64(tr1_2, tr1_3);
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out[3] = _mm_unpackhi_epi64(tr1_2, tr1_3);
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}
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static INLINE __m128i dct_const_round_shift_sse2(const __m128i in) {
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const __m128i t = _mm_add_epi32(in, _mm_set1_epi32(DCT_CONST_ROUNDING));
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return _mm_srai_epi32(t, DCT_CONST_BITS);
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}
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static INLINE __m128i idct_madd_round_shift_sse2(const __m128i in,
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const __m128i cospi) {
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const __m128i t = _mm_madd_epi16(in, cospi);
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return dct_const_round_shift_sse2(t);
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}
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// Calculate the dot product between in0/1 and x and wrap to short.
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static INLINE __m128i idct_calc_wraplow_sse2(const __m128i in0,
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const __m128i in1,
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const __m128i x) {
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const __m128i t0 = idct_madd_round_shift_sse2(in0, x);
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const __m128i t1 = idct_madd_round_shift_sse2(in1, x);
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return _mm_packs_epi32(t0, t1);
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}
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// Multiply elements by constants and add them together.
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static INLINE void butterfly(const __m128i in0, const __m128i in1, const int c0,
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const int c1, __m128i *const out0,
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__m128i *const out1) {
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const __m128i cst0 = pair_set_epi16(c0, -c1);
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const __m128i cst1 = pair_set_epi16(c1, c0);
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const __m128i lo = _mm_unpacklo_epi16(in0, in1);
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const __m128i hi = _mm_unpackhi_epi16(in0, in1);
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*out0 = idct_calc_wraplow_sse2(lo, hi, cst0);
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*out1 = idct_calc_wraplow_sse2(lo, hi, cst1);
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}
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static INLINE __m128i butterfly_cospi16(const __m128i in) {
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const __m128i cst = pair_set_epi16(cospi_16_64, cospi_16_64);
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const __m128i lo = _mm_unpacklo_epi16(in, _mm_setzero_si128());
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const __m128i hi = _mm_unpackhi_epi16(in, _mm_setzero_si128());
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return idct_calc_wraplow_sse2(lo, hi, cst);
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}
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// Functions to allow 8 bit optimisations to be used when profile 0 is used with
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// highbitdepth enabled
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static INLINE __m128i load_input_data4(const tran_low_t *data) {
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#if CONFIG_VP9_HIGHBITDEPTH
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const __m128i zero = _mm_setzero_si128();
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const __m128i in = _mm_load_si128((const __m128i *)data);
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return _mm_packs_epi32(in, zero);
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#else
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return _mm_loadl_epi64((const __m128i *)data);
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#endif
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}
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static INLINE __m128i load_input_data8(const tran_low_t *data) {
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#if CONFIG_VP9_HIGHBITDEPTH
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const __m128i in0 = _mm_load_si128((const __m128i *)data);
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const __m128i in1 = _mm_load_si128((const __m128i *)(data + 4));
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return _mm_packs_epi32(in0, in1);
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#else
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return _mm_load_si128((const __m128i *)data);
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#endif
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}
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static INLINE void load_transpose_16bit_8x8(const tran_low_t *input,
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const int stride,
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__m128i *const in) {
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in[0] = load_input_data8(input + 0 * stride);
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in[1] = load_input_data8(input + 1 * stride);
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in[2] = load_input_data8(input + 2 * stride);
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in[3] = load_input_data8(input + 3 * stride);
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in[4] = load_input_data8(input + 4 * stride);
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in[5] = load_input_data8(input + 5 * stride);
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in[6] = load_input_data8(input + 6 * stride);
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in[7] = load_input_data8(input + 7 * stride);
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transpose_16bit_8x8(in, in);
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}
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static INLINE void recon_and_store(uint8_t *const dest, const __m128i in_x) {
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const __m128i zero = _mm_setzero_si128();
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__m128i d0 = _mm_loadl_epi64((__m128i *)(dest));
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d0 = _mm_unpacklo_epi8(d0, zero);
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d0 = _mm_add_epi16(in_x, d0);
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d0 = _mm_packus_epi16(d0, d0);
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_mm_storel_epi64((__m128i *)(dest), d0);
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}
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static INLINE void round_shift_8x8(const __m128i *const in,
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__m128i *const out) {
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const __m128i final_rounding = _mm_set1_epi16(1 << 4);
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out[0] = _mm_add_epi16(in[0], final_rounding);
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out[1] = _mm_add_epi16(in[1], final_rounding);
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out[2] = _mm_add_epi16(in[2], final_rounding);
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out[3] = _mm_add_epi16(in[3], final_rounding);
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out[4] = _mm_add_epi16(in[4], final_rounding);
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out[5] = _mm_add_epi16(in[5], final_rounding);
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out[6] = _mm_add_epi16(in[6], final_rounding);
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out[7] = _mm_add_epi16(in[7], final_rounding);
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out[0] = _mm_srai_epi16(out[0], 5);
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out[1] = _mm_srai_epi16(out[1], 5);
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out[2] = _mm_srai_epi16(out[2], 5);
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out[3] = _mm_srai_epi16(out[3], 5);
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out[4] = _mm_srai_epi16(out[4], 5);
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out[5] = _mm_srai_epi16(out[5], 5);
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out[6] = _mm_srai_epi16(out[6], 5);
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out[7] = _mm_srai_epi16(out[7], 5);
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}
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static INLINE void write_buffer_8x8(const __m128i *const in,
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uint8_t *const dest, const int stride) {
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__m128i t[8];
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round_shift_8x8(in, t);
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recon_and_store(dest + 0 * stride, t[0]);
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recon_and_store(dest + 1 * stride, t[1]);
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recon_and_store(dest + 2 * stride, t[2]);
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recon_and_store(dest + 3 * stride, t[3]);
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recon_and_store(dest + 4 * stride, t[4]);
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recon_and_store(dest + 5 * stride, t[5]);
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recon_and_store(dest + 6 * stride, t[6]);
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recon_and_store(dest + 7 * stride, t[7]);
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}
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static INLINE void recon_and_store4x4_sse2(const __m128i *const in,
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uint8_t *const dest,
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const int stride) {
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const __m128i zero = _mm_setzero_si128();
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__m128i d[2];
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// Reconstruction and Store
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d[0] = _mm_cvtsi32_si128(*(const int *)(dest));
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d[1] = _mm_cvtsi32_si128(*(const int *)(dest + stride * 3));
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d[0] = _mm_unpacklo_epi32(d[0],
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_mm_cvtsi32_si128(*(const int *)(dest + stride)));
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d[1] = _mm_unpacklo_epi32(
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_mm_cvtsi32_si128(*(const int *)(dest + stride * 2)), d[1]);
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d[0] = _mm_unpacklo_epi8(d[0], zero);
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d[1] = _mm_unpacklo_epi8(d[1], zero);
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d[0] = _mm_add_epi16(d[0], in[0]);
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d[1] = _mm_add_epi16(d[1], in[1]);
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d[0] = _mm_packus_epi16(d[0], d[1]);
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*(int *)dest = _mm_cvtsi128_si32(d[0]);
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d[0] = _mm_srli_si128(d[0], 4);
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*(int *)(dest + stride) = _mm_cvtsi128_si32(d[0]);
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d[0] = _mm_srli_si128(d[0], 4);
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*(int *)(dest + stride * 2) = _mm_cvtsi128_si32(d[0]);
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d[0] = _mm_srli_si128(d[0], 4);
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*(int *)(dest + stride * 3) = _mm_cvtsi128_si32(d[0]);
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}
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static INLINE void store_buffer_8x32(__m128i *in, uint8_t *dst, int stride) {
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const __m128i final_rounding = _mm_set1_epi16(1 << 5);
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int j = 0;
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while (j < 32) {
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in[j] = _mm_adds_epi16(in[j], final_rounding);
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in[j + 1] = _mm_adds_epi16(in[j + 1], final_rounding);
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in[j] = _mm_srai_epi16(in[j], 6);
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in[j + 1] = _mm_srai_epi16(in[j + 1], 6);
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recon_and_store(dst, in[j]);
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dst += stride;
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recon_and_store(dst, in[j + 1]);
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dst += stride;
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j += 2;
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}
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}
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static INLINE void write_buffer_8x1(uint8_t *const dest, const __m128i in) {
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const __m128i final_rounding = _mm_set1_epi16(1 << 5);
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__m128i out;
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out = _mm_adds_epi16(in, final_rounding);
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out = _mm_srai_epi16(out, 6);
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recon_and_store(dest, out);
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}
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// Only do addition and subtraction butterfly, size = 16, 32
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static INLINE void add_sub_butterfly(const __m128i *in, __m128i *out,
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int size) {
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int i = 0;
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const int num = size >> 1;
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const int bound = size - 1;
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while (i < num) {
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out[i] = _mm_add_epi16(in[i], in[bound - i]);
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out[bound - i] = _mm_sub_epi16(in[i], in[bound - i]);
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i++;
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}
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}
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static INLINE void idct8(const __m128i *const in /*in[8]*/,
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__m128i *const out /*out[8]*/) {
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__m128i step1[8], step2[8];
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// stage 1
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butterfly(in[1], in[7], cospi_28_64, cospi_4_64, &step1[4], &step1[7]);
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butterfly(in[5], in[3], cospi_12_64, cospi_20_64, &step1[5], &step1[6]);
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// stage 2
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butterfly(in[0], in[4], cospi_16_64, cospi_16_64, &step2[1], &step2[0]);
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butterfly(in[2], in[6], cospi_24_64, cospi_8_64, &step2[2], &step2[3]);
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step2[4] = _mm_add_epi16(step1[4], step1[5]);
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step2[5] = _mm_sub_epi16(step1[4], step1[5]);
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step2[6] = _mm_sub_epi16(step1[7], step1[6]);
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step2[7] = _mm_add_epi16(step1[7], step1[6]);
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// stage 3
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step1[0] = _mm_add_epi16(step2[0], step2[3]);
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step1[1] = _mm_add_epi16(step2[1], step2[2]);
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step1[2] = _mm_sub_epi16(step2[1], step2[2]);
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step1[3] = _mm_sub_epi16(step2[0], step2[3]);
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butterfly(step2[6], step2[5], cospi_16_64, cospi_16_64, &step1[5], &step1[6]);
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// stage 4
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out[0] = _mm_add_epi16(step1[0], step2[7]);
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out[1] = _mm_add_epi16(step1[1], step1[6]);
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out[2] = _mm_add_epi16(step1[2], step1[5]);
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out[3] = _mm_add_epi16(step1[3], step2[4]);
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out[4] = _mm_sub_epi16(step1[3], step2[4]);
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out[5] = _mm_sub_epi16(step1[2], step1[5]);
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out[6] = _mm_sub_epi16(step1[1], step1[6]);
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out[7] = _mm_sub_epi16(step1[0], step2[7]);
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}
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static INLINE void idct8x8_12_add_kernel_sse2(__m128i *const io /*io[8]*/) {
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const __m128i zero = _mm_setzero_si128();
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const __m128i cp_16_16 = pair_set_epi16(cospi_16_64, cospi_16_64);
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const __m128i cp_16_n16 = pair_set_epi16(cospi_16_64, -cospi_16_64);
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__m128i step1[8], step2[8], tmp[4];
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transpose_16bit_4x4(io, io);
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// io[0]: 00 10 20 30 01 11 21 31
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// io[1]: 02 12 22 32 03 13 23 33
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// stage 1
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{
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const __m128i cp_28_n4 = pair_set_epi16(cospi_28_64, -cospi_4_64);
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const __m128i cp_4_28 = pair_set_epi16(cospi_4_64, cospi_28_64);
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const __m128i cp_n20_12 = pair_set_epi16(-cospi_20_64, cospi_12_64);
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const __m128i cp_12_20 = pair_set_epi16(cospi_12_64, cospi_20_64);
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const __m128i lo_1 = _mm_unpackhi_epi16(io[0], zero);
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const __m128i lo_3 = _mm_unpackhi_epi16(io[1], zero);
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step1[4] = idct_calc_wraplow_sse2(cp_28_n4, cp_4_28, lo_1); // step1 4&7
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step1[5] = idct_calc_wraplow_sse2(cp_n20_12, cp_12_20, lo_3); // step1 5&6
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}
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// stage 2
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{
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const __m128i cp_24_n8 = pair_set_epi16(cospi_24_64, -cospi_8_64);
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const __m128i cp_8_24 = pair_set_epi16(cospi_8_64, cospi_24_64);
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const __m128i lo_0 = _mm_unpacklo_epi16(io[0], zero);
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const __m128i lo_2 = _mm_unpacklo_epi16(io[1], zero);
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const __m128i t = idct_madd_round_shift_sse2(cp_16_16, lo_0);
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step2[0] = _mm_packs_epi32(t, t); // step2 0&1
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step2[2] = idct_calc_wraplow_sse2(cp_8_24, cp_24_n8, lo_2); // step2 3&2
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step2[4] = _mm_add_epi16(step1[4], step1[5]); // step2 4&7
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step2[5] = _mm_sub_epi16(step1[4], step1[5]); // step2 5&6
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step2[6] = _mm_unpackhi_epi64(step2[5], zero); // step2 6
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}
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// stage 3
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{
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const __m128i lo_65 = _mm_unpacklo_epi16(step2[6], step2[5]);
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tmp[0] = _mm_add_epi16(step2[0], step2[2]); // step1 0&1
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tmp[1] = _mm_sub_epi16(step2[0], step2[2]); // step1 3&2
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step1[2] = _mm_unpackhi_epi64(tmp[1], tmp[0]); // step1 2&1
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step1[3] = _mm_unpacklo_epi64(tmp[1], tmp[0]); // step1 3&0
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step1[5] = idct_calc_wraplow_sse2(cp_16_n16, cp_16_16, lo_65); // step1 5&6
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}
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// stage 4
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tmp[0] = _mm_add_epi16(step1[3], step2[4]); // output 3&0
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tmp[1] = _mm_add_epi16(step1[2], step1[5]); // output 2&1
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tmp[2] = _mm_sub_epi16(step1[3], step2[4]); // output 4&7
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tmp[3] = _mm_sub_epi16(step1[2], step1[5]); // output 5&6
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idct8x8_12_transpose_16bit_4x8(tmp, io);
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io[4] = io[5] = io[6] = io[7] = zero;
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idct8(io, io);
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}
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static INLINE void idct16_8col(const __m128i *const in /*in[16]*/,
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__m128i *const out /*out[16]*/) {
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__m128i step1[16], step2[16];
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// stage 2
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butterfly(in[1], in[15], cospi_30_64, cospi_2_64, &step2[8], &step2[15]);
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butterfly(in[9], in[7], cospi_14_64, cospi_18_64, &step2[9], &step2[14]);
|
|
butterfly(in[5], in[11], cospi_22_64, cospi_10_64, &step2[10], &step2[13]);
|
|
butterfly(in[13], in[3], cospi_6_64, cospi_26_64, &step2[11], &step2[12]);
|
|
|
|
// stage 3
|
|
butterfly(in[2], in[14], cospi_28_64, cospi_4_64, &step1[4], &step1[7]);
|
|
butterfly(in[10], in[6], cospi_12_64, cospi_20_64, &step1[5], &step1[6]);
|
|
step1[8] = _mm_add_epi16(step2[8], step2[9]);
|
|
step1[9] = _mm_sub_epi16(step2[8], step2[9]);
|
|
step1[10] = _mm_sub_epi16(step2[11], step2[10]);
|
|
step1[11] = _mm_add_epi16(step2[10], step2[11]);
|
|
step1[12] = _mm_add_epi16(step2[12], step2[13]);
|
|
step1[13] = _mm_sub_epi16(step2[12], step2[13]);
|
|
step1[14] = _mm_sub_epi16(step2[15], step2[14]);
|
|
step1[15] = _mm_add_epi16(step2[14], step2[15]);
|
|
|
|
// stage 4
|
|
butterfly(in[0], in[8], cospi_16_64, cospi_16_64, &step2[1], &step2[0]);
|
|
butterfly(in[4], in[12], cospi_24_64, cospi_8_64, &step2[2], &step2[3]);
|
|
butterfly(step1[14], step1[9], cospi_24_64, cospi_8_64, &step2[9],
|
|
&step2[14]);
|
|
butterfly(step1[10], step1[13], -cospi_8_64, -cospi_24_64, &step2[13],
|
|
&step2[10]);
|
|
step2[5] = _mm_sub_epi16(step1[4], step1[5]);
|
|
step1[4] = _mm_add_epi16(step1[4], step1[5]);
|
|
step2[6] = _mm_sub_epi16(step1[7], step1[6]);
|
|
step1[7] = _mm_add_epi16(step1[6], step1[7]);
|
|
step2[8] = step1[8];
|
|
step2[11] = step1[11];
|
|
step2[12] = step1[12];
|
|
step2[15] = step1[15];
|
|
|
|
// stage 5
|
|
step1[0] = _mm_add_epi16(step2[0], step2[3]);
|
|
step1[1] = _mm_add_epi16(step2[1], step2[2]);
|
|
step1[2] = _mm_sub_epi16(step2[1], step2[2]);
|
|
step1[3] = _mm_sub_epi16(step2[0], step2[3]);
|
|
butterfly(step2[6], step2[5], cospi_16_64, cospi_16_64, &step1[5], &step1[6]);
|
|
step1[8] = _mm_add_epi16(step2[8], step2[11]);
|
|
step1[9] = _mm_add_epi16(step2[9], step2[10]);
|
|
step1[10] = _mm_sub_epi16(step2[9], step2[10]);
|
|
step1[11] = _mm_sub_epi16(step2[8], step2[11]);
|
|
step1[12] = _mm_sub_epi16(step2[15], step2[12]);
|
|
step1[13] = _mm_sub_epi16(step2[14], step2[13]);
|
|
step1[14] = _mm_add_epi16(step2[14], step2[13]);
|
|
step1[15] = _mm_add_epi16(step2[15], step2[12]);
|
|
|
|
// stage 6
|
|
step2[0] = _mm_add_epi16(step1[0], step1[7]);
|
|
step2[1] = _mm_add_epi16(step1[1], step1[6]);
|
|
step2[2] = _mm_add_epi16(step1[2], step1[5]);
|
|
step2[3] = _mm_add_epi16(step1[3], step1[4]);
|
|
step2[4] = _mm_sub_epi16(step1[3], step1[4]);
|
|
step2[5] = _mm_sub_epi16(step1[2], step1[5]);
|
|
step2[6] = _mm_sub_epi16(step1[1], step1[6]);
|
|
step2[7] = _mm_sub_epi16(step1[0], step1[7]);
|
|
butterfly(step1[13], step1[10], cospi_16_64, cospi_16_64, &step2[10],
|
|
&step2[13]);
|
|
butterfly(step1[12], step1[11], cospi_16_64, cospi_16_64, &step2[11],
|
|
&step2[12]);
|
|
|
|
// stage 7
|
|
out[0] = _mm_add_epi16(step2[0], step1[15]);
|
|
out[1] = _mm_add_epi16(step2[1], step1[14]);
|
|
out[2] = _mm_add_epi16(step2[2], step2[13]);
|
|
out[3] = _mm_add_epi16(step2[3], step2[12]);
|
|
out[4] = _mm_add_epi16(step2[4], step2[11]);
|
|
out[5] = _mm_add_epi16(step2[5], step2[10]);
|
|
out[6] = _mm_add_epi16(step2[6], step1[9]);
|
|
out[7] = _mm_add_epi16(step2[7], step1[8]);
|
|
out[8] = _mm_sub_epi16(step2[7], step1[8]);
|
|
out[9] = _mm_sub_epi16(step2[6], step1[9]);
|
|
out[10] = _mm_sub_epi16(step2[5], step2[10]);
|
|
out[11] = _mm_sub_epi16(step2[4], step2[11]);
|
|
out[12] = _mm_sub_epi16(step2[3], step2[12]);
|
|
out[13] = _mm_sub_epi16(step2[2], step2[13]);
|
|
out[14] = _mm_sub_epi16(step2[1], step1[14]);
|
|
out[15] = _mm_sub_epi16(step2[0], step1[15]);
|
|
}
|
|
|
|
static INLINE void idct16x16_10_pass1(const __m128i *const input /*input[4]*/,
|
|
__m128i *const output /*output[16]*/) {
|
|
const __m128i zero = _mm_setzero_si128();
|
|
const __m128i k__cospi_p16_p16 = pair_set_epi16(cospi_16_64, cospi_16_64);
|
|
const __m128i k__cospi_m16_p16 = pair_set_epi16(-cospi_16_64, cospi_16_64);
|
|
__m128i step1[16], step2[16];
|
|
|
|
transpose_16bit_4x4(input, output);
|
|
|
|
// stage 2
|
|
{
|
|
const __m128i k__cospi_p30_m02 = pair_set_epi16(cospi_30_64, -cospi_2_64);
|
|
const __m128i k__cospi_p02_p30 = pair_set_epi16(cospi_2_64, cospi_30_64);
|
|
const __m128i k__cospi_p06_m26 = pair_set_epi16(cospi_6_64, -cospi_26_64);
|
|
const __m128i k__cospi_p26_p06 = pair_set_epi16(cospi_26_64, cospi_6_64);
|
|
const __m128i lo_1_15 = _mm_unpackhi_epi16(output[0], zero);
|
|
const __m128i lo_13_3 = _mm_unpackhi_epi16(zero, output[1]);
|
|
step2[8] = idct_calc_wraplow_sse2(k__cospi_p30_m02, k__cospi_p02_p30,
|
|
lo_1_15); // step2 8&15
|
|
step2[11] = idct_calc_wraplow_sse2(k__cospi_p06_m26, k__cospi_p26_p06,
|
|
lo_13_3); // step2 11&12
|
|
}
|
|
|
|
// stage 3
|
|
{
|
|
const __m128i k__cospi_p28_m04 = pair_set_epi16(cospi_28_64, -cospi_4_64);
|
|
const __m128i k__cospi_p04_p28 = pair_set_epi16(cospi_4_64, cospi_28_64);
|
|
const __m128i lo_2_14 = _mm_unpacklo_epi16(output[1], zero);
|
|
step1[4] = idct_calc_wraplow_sse2(k__cospi_p28_m04, k__cospi_p04_p28,
|
|
lo_2_14); // step1 4&7
|
|
step1[13] = _mm_unpackhi_epi64(step2[11], zero);
|
|
step1[14] = _mm_unpackhi_epi64(step2[8], zero);
|
|
}
|
|
|
|
// stage 4
|
|
{
|
|
const __m128i k__cospi_m08_p24 = pair_set_epi16(-cospi_8_64, cospi_24_64);
|
|
const __m128i k__cospi_p24_p08 = pair_set_epi16(cospi_24_64, cospi_8_64);
|
|
const __m128i k__cospi_m24_m08 = pair_set_epi16(-cospi_24_64, -cospi_8_64);
|
|
const __m128i lo_0_8 = _mm_unpacklo_epi16(output[0], zero);
|
|
const __m128i lo_9_14 = _mm_unpacklo_epi16(step2[8], step1[14]);
|
|
const __m128i lo_10_13 = _mm_unpacklo_epi16(step2[11], step1[13]);
|
|
const __m128i t = idct_madd_round_shift_sse2(lo_0_8, k__cospi_p16_p16);
|
|
step1[0] = _mm_packs_epi32(t, t); // step2 0&1
|
|
step2[9] = idct_calc_wraplow_sse2(k__cospi_m08_p24, k__cospi_p24_p08,
|
|
lo_9_14); // step2 9&14
|
|
step2[10] = idct_calc_wraplow_sse2(k__cospi_m24_m08, k__cospi_m08_p24,
|
|
lo_10_13); // step2 10&13
|
|
step2[6] = _mm_unpackhi_epi64(step1[4], zero);
|
|
}
|
|
|
|
// stage 5
|
|
{
|
|
const __m128i lo_5_6 = _mm_unpacklo_epi16(step1[4], step2[6]);
|
|
step1[6] = idct_calc_wraplow_sse2(k__cospi_p16_p16, k__cospi_m16_p16,
|
|
lo_5_6); // step1 6&5
|
|
step1[8] = _mm_add_epi16(step2[8], step2[11]);
|
|
step1[9] = _mm_add_epi16(step2[9], step2[10]);
|
|
step1[10] = _mm_sub_epi16(step2[9], step2[10]);
|
|
step1[11] = _mm_sub_epi16(step2[8], step2[11]);
|
|
step1[12] = _mm_unpackhi_epi64(step1[11], zero);
|
|
step1[13] = _mm_unpackhi_epi64(step1[10], zero);
|
|
step1[14] = _mm_unpackhi_epi64(step1[9], zero);
|
|
step1[15] = _mm_unpackhi_epi64(step1[8], zero);
|
|
}
|
|
|
|
// stage 6
|
|
{
|
|
const __m128i lo_10_13 = _mm_unpacklo_epi16(step1[10], step1[13]);
|
|
const __m128i lo_11_12 = _mm_unpacklo_epi16(step1[11], step1[12]);
|
|
step2[10] = idct_calc_wraplow_sse2(k__cospi_m16_p16, k__cospi_p16_p16,
|
|
lo_10_13); // step2 10&13
|
|
step2[11] = idct_calc_wraplow_sse2(k__cospi_m16_p16, k__cospi_p16_p16,
|
|
lo_11_12); // step2 11&12
|
|
step2[13] = _mm_unpackhi_epi64(step2[10], zero);
|
|
step2[12] = _mm_unpackhi_epi64(step2[11], zero);
|
|
step2[3] = _mm_add_epi16(step1[0], step1[4]);
|
|
step2[1] = _mm_add_epi16(step1[0], step1[6]);
|
|
step2[6] = _mm_sub_epi16(step1[0], step1[6]);
|
|
step2[4] = _mm_sub_epi16(step1[0], step1[4]);
|
|
step2[0] = _mm_unpackhi_epi64(step2[3], zero);
|
|
step2[2] = _mm_unpackhi_epi64(step2[1], zero);
|
|
step2[5] = _mm_unpackhi_epi64(step2[6], zero);
|
|
step2[7] = _mm_unpackhi_epi64(step2[4], zero);
|
|
}
|
|
|
|
// stage 7. Left 8x16 only.
|
|
output[0] = _mm_add_epi16(step2[0], step1[15]);
|
|
output[1] = _mm_add_epi16(step2[1], step1[14]);
|
|
output[2] = _mm_add_epi16(step2[2], step2[13]);
|
|
output[3] = _mm_add_epi16(step2[3], step2[12]);
|
|
output[4] = _mm_add_epi16(step2[4], step2[11]);
|
|
output[5] = _mm_add_epi16(step2[5], step2[10]);
|
|
output[6] = _mm_add_epi16(step2[6], step1[9]);
|
|
output[7] = _mm_add_epi16(step2[7], step1[8]);
|
|
output[8] = _mm_sub_epi16(step2[7], step1[8]);
|
|
output[9] = _mm_sub_epi16(step2[6], step1[9]);
|
|
output[10] = _mm_sub_epi16(step2[5], step2[10]);
|
|
output[11] = _mm_sub_epi16(step2[4], step2[11]);
|
|
output[12] = _mm_sub_epi16(step2[3], step2[12]);
|
|
output[13] = _mm_sub_epi16(step2[2], step2[13]);
|
|
output[14] = _mm_sub_epi16(step2[1], step1[14]);
|
|
output[15] = _mm_sub_epi16(step2[0], step1[15]);
|
|
}
|
|
|
|
static INLINE void idct16x16_10_pass2(__m128i *const l /*l[8]*/,
|
|
__m128i *const io /*io[16]*/) {
|
|
const __m128i zero = _mm_setzero_si128();
|
|
__m128i step1[16], step2[16];
|
|
|
|
transpose_16bit_4x8(l, io);
|
|
|
|
// stage 2
|
|
butterfly(io[1], zero, cospi_30_64, cospi_2_64, &step2[8], &step2[15]);
|
|
butterfly(zero, io[3], cospi_6_64, cospi_26_64, &step2[11], &step2[12]);
|
|
|
|
// stage 3
|
|
butterfly(io[2], zero, cospi_28_64, cospi_4_64, &step1[4], &step1[7]);
|
|
|
|
// stage 4
|
|
step1[0] = butterfly_cospi16(io[0]);
|
|
butterfly(step2[15], step2[8], cospi_24_64, cospi_8_64, &step2[9],
|
|
&step2[14]);
|
|
butterfly(step2[11], step2[12], -cospi_8_64, -cospi_24_64, &step2[13],
|
|
&step2[10]);
|
|
|
|
// stage 5
|
|
butterfly(step1[7], step1[4], cospi_16_64, cospi_16_64, &step1[5], &step1[6]);
|
|
step1[8] = _mm_add_epi16(step2[8], step2[11]);
|
|
step1[9] = _mm_add_epi16(step2[9], step2[10]);
|
|
step1[10] = _mm_sub_epi16(step2[9], step2[10]);
|
|
step1[11] = _mm_sub_epi16(step2[8], step2[11]);
|
|
step1[12] = _mm_sub_epi16(step2[15], step2[12]);
|
|
step1[13] = _mm_sub_epi16(step2[14], step2[13]);
|
|
step1[14] = _mm_add_epi16(step2[14], step2[13]);
|
|
step1[15] = _mm_add_epi16(step2[15], step2[12]);
|
|
|
|
// stage 6
|
|
step2[0] = _mm_add_epi16(step1[0], step1[7]);
|
|
step2[1] = _mm_add_epi16(step1[0], step1[6]);
|
|
step2[2] = _mm_add_epi16(step1[0], step1[5]);
|
|
step2[3] = _mm_add_epi16(step1[0], step1[4]);
|
|
step2[4] = _mm_sub_epi16(step1[0], step1[4]);
|
|
step2[5] = _mm_sub_epi16(step1[0], step1[5]);
|
|
step2[6] = _mm_sub_epi16(step1[0], step1[6]);
|
|
step2[7] = _mm_sub_epi16(step1[0], step1[7]);
|
|
butterfly(step1[13], step1[10], cospi_16_64, cospi_16_64, &step2[10],
|
|
&step2[13]);
|
|
butterfly(step1[12], step1[11], cospi_16_64, cospi_16_64, &step2[11],
|
|
&step2[12]);
|
|
|
|
// stage 7
|
|
io[0] = _mm_add_epi16(step2[0], step1[15]);
|
|
io[1] = _mm_add_epi16(step2[1], step1[14]);
|
|
io[2] = _mm_add_epi16(step2[2], step2[13]);
|
|
io[3] = _mm_add_epi16(step2[3], step2[12]);
|
|
io[4] = _mm_add_epi16(step2[4], step2[11]);
|
|
io[5] = _mm_add_epi16(step2[5], step2[10]);
|
|
io[6] = _mm_add_epi16(step2[6], step1[9]);
|
|
io[7] = _mm_add_epi16(step2[7], step1[8]);
|
|
io[8] = _mm_sub_epi16(step2[7], step1[8]);
|
|
io[9] = _mm_sub_epi16(step2[6], step1[9]);
|
|
io[10] = _mm_sub_epi16(step2[5], step2[10]);
|
|
io[11] = _mm_sub_epi16(step2[4], step2[11]);
|
|
io[12] = _mm_sub_epi16(step2[3], step2[12]);
|
|
io[13] = _mm_sub_epi16(step2[2], step2[13]);
|
|
io[14] = _mm_sub_epi16(step2[1], step1[14]);
|
|
io[15] = _mm_sub_epi16(step2[0], step1[15]);
|
|
}
|
|
|
|
static INLINE void idct32_8x32_quarter_2_stage_4_to_6(
|
|
__m128i *const step1 /*step1[16]*/, __m128i *const out /*out[16]*/) {
|
|
__m128i step2[32];
|
|
|
|
// stage 4
|
|
step2[8] = step1[8];
|
|
step2[15] = step1[15];
|
|
butterfly(step1[14], step1[9], cospi_24_64, cospi_8_64, &step2[9],
|
|
&step2[14]);
|
|
butterfly(step1[13], step1[10], -cospi_8_64, cospi_24_64, &step2[10],
|
|
&step2[13]);
|
|
step2[11] = step1[11];
|
|
step2[12] = step1[12];
|
|
|
|
// stage 5
|
|
step1[8] = _mm_add_epi16(step2[8], step2[11]);
|
|
step1[9] = _mm_add_epi16(step2[9], step2[10]);
|
|
step1[10] = _mm_sub_epi16(step2[9], step2[10]);
|
|
step1[11] = _mm_sub_epi16(step2[8], step2[11]);
|
|
step1[12] = _mm_sub_epi16(step2[15], step2[12]);
|
|
step1[13] = _mm_sub_epi16(step2[14], step2[13]);
|
|
step1[14] = _mm_add_epi16(step2[14], step2[13]);
|
|
step1[15] = _mm_add_epi16(step2[15], step2[12]);
|
|
|
|
// stage 6
|
|
out[8] = step1[8];
|
|
out[9] = step1[9];
|
|
butterfly(step1[13], step1[10], cospi_16_64, cospi_16_64, &out[10], &out[13]);
|
|
butterfly(step1[12], step1[11], cospi_16_64, cospi_16_64, &out[11], &out[12]);
|
|
out[14] = step1[14];
|
|
out[15] = step1[15];
|
|
}
|
|
|
|
static INLINE void idct32_8x32_quarter_3_4_stage_4_to_7(
|
|
__m128i *const step1 /*step1[32]*/, __m128i *const out /*out[32]*/) {
|
|
__m128i step2[32];
|
|
|
|
// stage 4
|
|
step2[16] = _mm_add_epi16(step1[16], step1[19]);
|
|
step2[17] = _mm_add_epi16(step1[17], step1[18]);
|
|
step2[18] = _mm_sub_epi16(step1[17], step1[18]);
|
|
step2[19] = _mm_sub_epi16(step1[16], step1[19]);
|
|
step2[20] = _mm_sub_epi16(step1[23], step1[20]);
|
|
step2[21] = _mm_sub_epi16(step1[22], step1[21]);
|
|
step2[22] = _mm_add_epi16(step1[22], step1[21]);
|
|
step2[23] = _mm_add_epi16(step1[23], step1[20]);
|
|
|
|
step2[24] = _mm_add_epi16(step1[24], step1[27]);
|
|
step2[25] = _mm_add_epi16(step1[25], step1[26]);
|
|
step2[26] = _mm_sub_epi16(step1[25], step1[26]);
|
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step2[27] = _mm_sub_epi16(step1[24], step1[27]);
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step2[28] = _mm_sub_epi16(step1[31], step1[28]);
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step2[29] = _mm_sub_epi16(step1[30], step1[29]);
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step2[30] = _mm_add_epi16(step1[29], step1[30]);
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step2[31] = _mm_add_epi16(step1[28], step1[31]);
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// stage 5
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step1[16] = step2[16];
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step1[17] = step2[17];
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butterfly(step2[29], step2[18], cospi_24_64, cospi_8_64, &step1[18],
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&step1[29]);
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butterfly(step2[28], step2[19], cospi_24_64, cospi_8_64, &step1[19],
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&step1[28]);
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butterfly(step2[27], step2[20], -cospi_8_64, cospi_24_64, &step1[20],
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&step1[27]);
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butterfly(step2[26], step2[21], -cospi_8_64, cospi_24_64, &step1[21],
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&step1[26]);
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step1[22] = step2[22];
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step1[23] = step2[23];
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step1[24] = step2[24];
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step1[25] = step2[25];
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step1[30] = step2[30];
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step1[31] = step2[31];
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// stage 6
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out[16] = _mm_add_epi16(step1[16], step1[23]);
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out[17] = _mm_add_epi16(step1[17], step1[22]);
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out[18] = _mm_add_epi16(step1[18], step1[21]);
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out[19] = _mm_add_epi16(step1[19], step1[20]);
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step2[20] = _mm_sub_epi16(step1[19], step1[20]);
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step2[21] = _mm_sub_epi16(step1[18], step1[21]);
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step2[22] = _mm_sub_epi16(step1[17], step1[22]);
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step2[23] = _mm_sub_epi16(step1[16], step1[23]);
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step2[24] = _mm_sub_epi16(step1[31], step1[24]);
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step2[25] = _mm_sub_epi16(step1[30], step1[25]);
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step2[26] = _mm_sub_epi16(step1[29], step1[26]);
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step2[27] = _mm_sub_epi16(step1[28], step1[27]);
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out[28] = _mm_add_epi16(step1[27], step1[28]);
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out[29] = _mm_add_epi16(step1[26], step1[29]);
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out[30] = _mm_add_epi16(step1[25], step1[30]);
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out[31] = _mm_add_epi16(step1[24], step1[31]);
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// stage 7
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butterfly(step2[27], step2[20], cospi_16_64, cospi_16_64, &out[20], &out[27]);
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butterfly(step2[26], step2[21], cospi_16_64, cospi_16_64, &out[21], &out[26]);
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butterfly(step2[25], step2[22], cospi_16_64, cospi_16_64, &out[22], &out[25]);
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butterfly(step2[24], step2[23], cospi_16_64, cospi_16_64, &out[23], &out[24]);
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}
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void idct4_sse2(__m128i *const in);
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void idct8_sse2(__m128i *const in);
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void idct16_sse2(__m128i *const in0, __m128i *const in1);
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void iadst4_sse2(__m128i *const in);
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void iadst8_sse2(__m128i *const in);
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void iadst16_sse2(__m128i *const in0, __m128i *const in1);
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void idct32_1024_8x32(const __m128i *const in, __m128i *const out);
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void idct32_34_8x32_sse2(const __m128i *const in, __m128i *const out);
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void idct32_34_8x32_ssse3(const __m128i *const in, __m128i *const out);
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#endif // VPX_DSP_X86_INV_TXFM_SSE2_H_
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