247 строки
9.4 KiB
C
247 строки
9.4 KiB
C
/*
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* Copyright (c) 2016, Alliance for Open Media. All rights reserved
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*
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* This source code is subject to the terms of the BSD 2 Clause License and
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* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
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* was not distributed with this source code in the LICENSE file, you can
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* obtain it at www.aomedia.org/license/software. If the Alliance for Open
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* Media Patent License 1.0 was not distributed with this source code in the
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* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
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*/
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#include "aom_dsp/mips/fwd_txfm_msa.h"
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void fdct8x16_1d_column(const int16_t *input, int16_t *tmp_ptr,
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int32_t src_stride) {
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v8i16 tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7;
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v8i16 in0, in1, in2, in3, in4, in5, in6, in7;
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v8i16 in8, in9, in10, in11, in12, in13, in14, in15;
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v8i16 stp21, stp22, stp23, stp24, stp25, stp26, stp30;
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v8i16 stp31, stp32, stp33, stp34, stp35, stp36, stp37;
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v8i16 vec0, vec1, vec2, vec3, vec4, vec5, cnst0, cnst1, cnst4, cnst5;
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v8i16 coeff = { cospi_16_64, -cospi_16_64, cospi_8_64, cospi_24_64,
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-cospi_8_64, -cospi_24_64, cospi_12_64, cospi_20_64 };
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v8i16 coeff1 = { cospi_2_64, cospi_30_64, cospi_14_64, cospi_18_64,
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cospi_10_64, cospi_22_64, cospi_6_64, cospi_26_64 };
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v8i16 coeff2 = {
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-cospi_2_64, -cospi_10_64, -cospi_18_64, -cospi_26_64, 0, 0, 0, 0
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};
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LD_SH16(input, src_stride, in0, in1, in2, in3, in4, in5, in6, in7, in8, in9,
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in10, in11, in12, in13, in14, in15);
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SLLI_4V(in0, in1, in2, in3, 2);
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SLLI_4V(in4, in5, in6, in7, 2);
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SLLI_4V(in8, in9, in10, in11, 2);
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SLLI_4V(in12, in13, in14, in15, 2);
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ADD4(in0, in15, in1, in14, in2, in13, in3, in12, tmp0, tmp1, tmp2, tmp3);
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ADD4(in4, in11, in5, in10, in6, in9, in7, in8, tmp4, tmp5, tmp6, tmp7);
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FDCT8x16_EVEN(tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7, tmp0, tmp1,
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tmp2, tmp3, tmp4, tmp5, tmp6, tmp7);
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ST_SH8(tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7, tmp_ptr, 32);
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SUB4(in0, in15, in1, in14, in2, in13, in3, in12, in15, in14, in13, in12);
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SUB4(in4, in11, in5, in10, in6, in9, in7, in8, in11, in10, in9, in8);
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tmp_ptr += 16;
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/* stp 1 */
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ILVL_H2_SH(in10, in13, in11, in12, vec2, vec4);
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ILVR_H2_SH(in10, in13, in11, in12, vec3, vec5);
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cnst4 = __msa_splati_h(coeff, 0);
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stp25 = DOT_SHIFT_RIGHT_PCK_H(vec2, vec3, cnst4);
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cnst5 = __msa_splati_h(coeff, 1);
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cnst5 = __msa_ilvev_h(cnst5, cnst4);
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stp22 = DOT_SHIFT_RIGHT_PCK_H(vec2, vec3, cnst5);
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stp24 = DOT_SHIFT_RIGHT_PCK_H(vec4, vec5, cnst4);
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stp23 = DOT_SHIFT_RIGHT_PCK_H(vec4, vec5, cnst5);
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/* stp2 */
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BUTTERFLY_4(in8, in9, stp22, stp23, stp30, stp31, stp32, stp33);
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BUTTERFLY_4(in15, in14, stp25, stp24, stp37, stp36, stp35, stp34);
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ILVL_H2_SH(stp36, stp31, stp35, stp32, vec2, vec4);
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ILVR_H2_SH(stp36, stp31, stp35, stp32, vec3, vec5);
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SPLATI_H2_SH(coeff, 2, 3, cnst0, cnst1);
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cnst0 = __msa_ilvev_h(cnst0, cnst1);
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stp26 = DOT_SHIFT_RIGHT_PCK_H(vec2, vec3, cnst0);
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cnst0 = __msa_splati_h(coeff, 4);
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cnst1 = __msa_ilvev_h(cnst1, cnst0);
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stp21 = DOT_SHIFT_RIGHT_PCK_H(vec2, vec3, cnst1);
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BUTTERFLY_4(stp30, stp37, stp26, stp21, in8, in15, in14, in9);
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ILVRL_H2_SH(in15, in8, vec1, vec0);
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SPLATI_H2_SH(coeff1, 0, 1, cnst0, cnst1);
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cnst0 = __msa_ilvev_h(cnst0, cnst1);
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in8 = DOT_SHIFT_RIGHT_PCK_H(vec0, vec1, cnst0);
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ST_SH(in8, tmp_ptr);
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cnst0 = __msa_splati_h(coeff2, 0);
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cnst0 = __msa_ilvev_h(cnst1, cnst0);
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in8 = DOT_SHIFT_RIGHT_PCK_H(vec0, vec1, cnst0);
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ST_SH(in8, tmp_ptr + 224);
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ILVRL_H2_SH(in14, in9, vec1, vec0);
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SPLATI_H2_SH(coeff1, 2, 3, cnst0, cnst1);
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cnst1 = __msa_ilvev_h(cnst1, cnst0);
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in8 = DOT_SHIFT_RIGHT_PCK_H(vec0, vec1, cnst1);
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ST_SH(in8, tmp_ptr + 128);
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cnst1 = __msa_splati_h(coeff2, 2);
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cnst0 = __msa_ilvev_h(cnst0, cnst1);
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in8 = DOT_SHIFT_RIGHT_PCK_H(vec0, vec1, cnst0);
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ST_SH(in8, tmp_ptr + 96);
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SPLATI_H2_SH(coeff, 2, 5, cnst0, cnst1);
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cnst1 = __msa_ilvev_h(cnst1, cnst0);
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stp25 = DOT_SHIFT_RIGHT_PCK_H(vec4, vec5, cnst1);
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cnst1 = __msa_splati_h(coeff, 3);
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cnst1 = __msa_ilvev_h(cnst0, cnst1);
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stp22 = DOT_SHIFT_RIGHT_PCK_H(vec4, vec5, cnst1);
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/* stp4 */
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ADD2(stp34, stp25, stp33, stp22, in13, in10);
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ILVRL_H2_SH(in13, in10, vec1, vec0);
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SPLATI_H2_SH(coeff1, 4, 5, cnst0, cnst1);
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cnst0 = __msa_ilvev_h(cnst0, cnst1);
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in8 = DOT_SHIFT_RIGHT_PCK_H(vec0, vec1, cnst0);
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ST_SH(in8, tmp_ptr + 64);
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cnst0 = __msa_splati_h(coeff2, 1);
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cnst0 = __msa_ilvev_h(cnst1, cnst0);
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in8 = DOT_SHIFT_RIGHT_PCK_H(vec0, vec1, cnst0);
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ST_SH(in8, tmp_ptr + 160);
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SUB2(stp34, stp25, stp33, stp22, in12, in11);
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ILVRL_H2_SH(in12, in11, vec1, vec0);
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SPLATI_H2_SH(coeff1, 6, 7, cnst0, cnst1);
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cnst1 = __msa_ilvev_h(cnst1, cnst0);
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in8 = DOT_SHIFT_RIGHT_PCK_H(vec0, vec1, cnst1);
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ST_SH(in8, tmp_ptr + 192);
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cnst1 = __msa_splati_h(coeff2, 3);
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cnst0 = __msa_ilvev_h(cnst0, cnst1);
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in8 = DOT_SHIFT_RIGHT_PCK_H(vec0, vec1, cnst0);
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ST_SH(in8, tmp_ptr + 32);
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}
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void fdct16x8_1d_row(int16_t *input, int16_t *output) {
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v8i16 tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7;
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v8i16 in0, in1, in2, in3, in4, in5, in6, in7;
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v8i16 in8, in9, in10, in11, in12, in13, in14, in15;
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LD_SH8(input, 16, in0, in1, in2, in3, in4, in5, in6, in7);
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LD_SH8((input + 8), 16, in8, in9, in10, in11, in12, in13, in14, in15);
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TRANSPOSE8x8_SH_SH(in0, in1, in2, in3, in4, in5, in6, in7, in0, in1, in2, in3,
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in4, in5, in6, in7);
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TRANSPOSE8x8_SH_SH(in8, in9, in10, in11, in12, in13, in14, in15, in8, in9,
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in10, in11, in12, in13, in14, in15);
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ADD4(in0, 1, in1, 1, in2, 1, in3, 1, in0, in1, in2, in3);
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ADD4(in4, 1, in5, 1, in6, 1, in7, 1, in4, in5, in6, in7);
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ADD4(in8, 1, in9, 1, in10, 1, in11, 1, in8, in9, in10, in11);
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ADD4(in12, 1, in13, 1, in14, 1, in15, 1, in12, in13, in14, in15);
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SRA_4V(in0, in1, in2, in3, 2);
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SRA_4V(in4, in5, in6, in7, 2);
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SRA_4V(in8, in9, in10, in11, 2);
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SRA_4V(in12, in13, in14, in15, 2);
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BUTTERFLY_16(in0, in1, in2, in3, in4, in5, in6, in7, in8, in9, in10, in11,
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in12, in13, in14, in15, tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6,
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tmp7, in8, in9, in10, in11, in12, in13, in14, in15);
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ST_SH8(in8, in9, in10, in11, in12, in13, in14, in15, input, 16);
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FDCT8x16_EVEN(tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7, tmp0, tmp1,
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tmp2, tmp3, tmp4, tmp5, tmp6, tmp7);
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LD_SH8(input, 16, in8, in9, in10, in11, in12, in13, in14, in15);
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FDCT8x16_ODD(in8, in9, in10, in11, in12, in13, in14, in15, in0, in1, in2, in3,
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in4, in5, in6, in7);
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TRANSPOSE8x8_SH_SH(tmp0, in0, tmp1, in1, tmp2, in2, tmp3, in3, tmp0, in0,
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tmp1, in1, tmp2, in2, tmp3, in3);
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ST_SH8(tmp0, in0, tmp1, in1, tmp2, in2, tmp3, in3, output, 16);
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TRANSPOSE8x8_SH_SH(tmp4, in4, tmp5, in5, tmp6, in6, tmp7, in7, tmp4, in4,
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tmp5, in5, tmp6, in6, tmp7, in7);
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ST_SH8(tmp4, in4, tmp5, in5, tmp6, in6, tmp7, in7, output + 8, 16);
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}
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void aom_fdct4x4_msa(const int16_t *input, int16_t *output,
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int32_t src_stride) {
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v8i16 in0, in1, in2, in3;
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LD_SH4(input, src_stride, in0, in1, in2, in3);
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/* fdct4 pre-process */
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{
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v8i16 vec, mask;
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v16i8 zero = { 0 };
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v16i8 one = __msa_ldi_b(1);
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mask = (v8i16)__msa_sldi_b(zero, one, 15);
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SLLI_4V(in0, in1, in2, in3, 4);
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vec = __msa_ceqi_h(in0, 0);
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vec = vec ^ 255;
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vec = mask & vec;
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in0 += vec;
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}
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AOM_FDCT4(in0, in1, in2, in3, in0, in1, in2, in3);
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TRANSPOSE4x4_SH_SH(in0, in1, in2, in3, in0, in1, in2, in3);
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AOM_FDCT4(in0, in1, in2, in3, in0, in1, in2, in3);
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TRANSPOSE4x4_SH_SH(in0, in1, in2, in3, in0, in1, in2, in3);
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ADD4(in0, 1, in1, 1, in2, 1, in3, 1, in0, in1, in2, in3);
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SRA_4V(in0, in1, in2, in3, 2);
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PCKEV_D2_SH(in1, in0, in3, in2, in0, in2);
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ST_SH2(in0, in2, output, 8);
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}
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void aom_fdct8x8_msa(const int16_t *input, int16_t *output,
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int32_t src_stride) {
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v8i16 in0, in1, in2, in3, in4, in5, in6, in7;
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LD_SH8(input, src_stride, in0, in1, in2, in3, in4, in5, in6, in7);
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SLLI_4V(in0, in1, in2, in3, 2);
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SLLI_4V(in4, in5, in6, in7, 2);
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AOM_FDCT8(in0, in1, in2, in3, in4, in5, in6, in7, in0, in1, in2, in3, in4,
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in5, in6, in7);
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TRANSPOSE8x8_SH_SH(in0, in1, in2, in3, in4, in5, in6, in7, in0, in1, in2, in3,
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in4, in5, in6, in7);
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AOM_FDCT8(in0, in1, in2, in3, in4, in5, in6, in7, in0, in1, in2, in3, in4,
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in5, in6, in7);
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TRANSPOSE8x8_SH_SH(in0, in1, in2, in3, in4, in5, in6, in7, in0, in1, in2, in3,
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in4, in5, in6, in7);
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SRLI_AVE_S_4V_H(in0, in1, in2, in3, in4, in5, in6, in7);
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ST_SH8(in0, in1, in2, in3, in4, in5, in6, in7, output, 8);
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}
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void aom_fdct8x8_1_msa(const int16_t *input, int16_t *out, int32_t stride) {
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out[0] = LD_HADD(input, stride);
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out[1] = 0;
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}
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void aom_fdct16x16_msa(const int16_t *input, int16_t *output,
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int32_t src_stride) {
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int32_t i;
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DECLARE_ALIGNED(32, int16_t, tmp_buf[16 * 16]);
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/* column transform */
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for (i = 0; i < 2; ++i) {
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fdct8x16_1d_column((input + 8 * i), (&tmp_buf[0] + 8 * i), src_stride);
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}
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/* row transform */
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for (i = 0; i < 2; ++i) {
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fdct16x8_1d_row((&tmp_buf[0] + (128 * i)), (output + (128 * i)));
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}
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}
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void aom_fdct16x16_1_msa(const int16_t *input, int16_t *out, int32_t stride) {
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int sum = LD_HADD(input, stride);
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sum += LD_HADD(input + 8, stride);
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sum += LD_HADD(input + 16 * 8, stride);
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sum += LD_HADD(input + 16 * 8 + 8, stride);
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out[0] = (int16_t)(sum >> 1);
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}
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