ref: 726d1b841b8101fbfa75eb9832e9baa9e477c1d5
dir: /vp9/encoder/mips/msa/vp9_fdct_msa.h/
/*
* Copyright (c) 2015 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.
*/
#ifndef VP9_ENCODER_MIPS_MSA_VP9_FDCT_MSA_H_
#define VP9_ENCODER_MIPS_MSA_VP9_FDCT_MSA_H_
#include "vpx_dsp/mips/fwd_txfm_msa.h"
#include "vpx_dsp/mips/txfm_macros_msa.h"
#include "vpx_ports/mem.h"
#define VP9_ADST8(in0, in1, in2, in3, in4, in5, in6, in7, \
out0, out1, out2, out3, out4, out5, out6, out7) { \
v8i16 cnst0_m, cnst1_m, cnst2_m, cnst3_m, cnst4_m; \
v8i16 vec0_m, vec1_m, vec2_m, vec3_m, s0_m, s1_m; \
v8i16 coeff0_m = { cospi_2_64, cospi_6_64, cospi_10_64, cospi_14_64, \
cospi_18_64, cospi_22_64, cospi_26_64, cospi_30_64 }; \
v8i16 coeff1_m = { cospi_8_64, -cospi_8_64, cospi_16_64, -cospi_16_64, \
cospi_24_64, -cospi_24_64, 0, 0 }; \
\
SPLATI_H2_SH(coeff0_m, 0, 7, cnst0_m, cnst1_m); \
cnst2_m = -cnst0_m; \
ILVEV_H2_SH(cnst0_m, cnst1_m, cnst1_m, cnst2_m, cnst0_m, cnst1_m); \
SPLATI_H2_SH(coeff0_m, 4, 3, cnst2_m, cnst3_m); \
cnst4_m = -cnst2_m; \
ILVEV_H2_SH(cnst2_m, cnst3_m, cnst3_m, cnst4_m, cnst2_m, cnst3_m); \
\
ILVRL_H2_SH(in0, in7, vec1_m, vec0_m); \
ILVRL_H2_SH(in4, in3, vec3_m, vec2_m); \
DOT_ADD_SUB_SRARI_PCK(vec0_m, vec1_m, vec2_m, vec3_m, cnst0_m, \
cnst1_m, cnst2_m, cnst3_m, in7, in0, \
in4, in3); \
\
SPLATI_H2_SH(coeff0_m, 2, 5, cnst0_m, cnst1_m); \
cnst2_m = -cnst0_m; \
ILVEV_H2_SH(cnst0_m, cnst1_m, cnst1_m, cnst2_m, cnst0_m, cnst1_m); \
SPLATI_H2_SH(coeff0_m, 6, 1, cnst2_m, cnst3_m); \
cnst4_m = -cnst2_m; \
ILVEV_H2_SH(cnst2_m, cnst3_m, cnst3_m, cnst4_m, cnst2_m, cnst3_m); \
\
ILVRL_H2_SH(in2, in5, vec1_m, vec0_m); \
ILVRL_H2_SH(in6, in1, vec3_m, vec2_m); \
\
DOT_ADD_SUB_SRARI_PCK(vec0_m, vec1_m, vec2_m, vec3_m, cnst0_m, \
cnst1_m, cnst2_m, cnst3_m, in5, in2, \
in6, in1); \
BUTTERFLY_4(in7, in0, in2, in5, s1_m, s0_m, in2, in5); \
out7 = -s0_m; \
out0 = s1_m; \
\
SPLATI_H4_SH(coeff1_m, 0, 4, 1, 5, cnst0_m, cnst1_m, cnst2_m, cnst3_m); \
\
ILVEV_H2_SH(cnst3_m, cnst0_m, cnst1_m, cnst2_m, cnst3_m, cnst2_m); \
cnst0_m = __msa_ilvev_h(cnst1_m, cnst0_m); \
cnst1_m = cnst0_m; \
\
ILVRL_H2_SH(in4, in3, vec1_m, vec0_m); \
ILVRL_H2_SH(in6, in1, vec3_m, vec2_m); \
DOT_ADD_SUB_SRARI_PCK(vec0_m, vec1_m, vec2_m, vec3_m, cnst0_m, \
cnst2_m, cnst3_m, cnst1_m, out1, out6, \
s0_m, s1_m); \
\
SPLATI_H2_SH(coeff1_m, 2, 3, cnst0_m, cnst1_m); \
cnst1_m = __msa_ilvev_h(cnst1_m, cnst0_m); \
\
ILVRL_H2_SH(in2, in5, vec1_m, vec0_m); \
ILVRL_H2_SH(s0_m, s1_m, vec3_m, vec2_m); \
out3 = DOT_SHIFT_RIGHT_PCK_H(vec0_m, vec1_m, cnst0_m); \
out4 = DOT_SHIFT_RIGHT_PCK_H(vec0_m, vec1_m, cnst1_m); \
out2 = DOT_SHIFT_RIGHT_PCK_H(vec2_m, vec3_m, cnst0_m); \
out5 = DOT_SHIFT_RIGHT_PCK_H(vec2_m, vec3_m, cnst1_m); \
\
out1 = -out1; \
out3 = -out3; \
out5 = -out5; \
}
#define VP9_FADST4(in0, in1, in2, in3, out0, out1, out2, out3) { \
v4i32 s0_m, s1_m, s2_m, s3_m, constant_m; \
v4i32 in0_r_m, in1_r_m, in2_r_m, in3_r_m; \
\
UNPCK_R_SH_SW(in0, in0_r_m); \
UNPCK_R_SH_SW(in1, in1_r_m); \
UNPCK_R_SH_SW(in2, in2_r_m); \
UNPCK_R_SH_SW(in3, in3_r_m); \
\
constant_m = __msa_fill_w(sinpi_4_9); \
MUL2(in0_r_m, constant_m, in3_r_m, constant_m, s1_m, s0_m); \
\
constant_m = __msa_fill_w(sinpi_1_9); \
s0_m += in0_r_m * constant_m; \
s1_m -= in1_r_m * constant_m; \
\
constant_m = __msa_fill_w(sinpi_2_9); \
s0_m += in1_r_m * constant_m; \
s1_m += in3_r_m * constant_m; \
\
s2_m = in0_r_m + in1_r_m - in3_r_m; \
\
constant_m = __msa_fill_w(sinpi_3_9); \
MUL2(in2_r_m, constant_m, s2_m, constant_m, s3_m, in1_r_m); \
\
in0_r_m = s0_m + s3_m; \
s2_m = s1_m - s3_m; \
s3_m = s1_m - s0_m + s3_m; \
\
SRARI_W4_SW(in0_r_m, in1_r_m, s2_m, s3_m, DCT_CONST_BITS); \
PCKEV_H4_SH(in0_r_m, in0_r_m, in1_r_m, in1_r_m, s2_m, s2_m, \
s3_m, s3_m, out0, out1, out2, out3); \
}
#endif /* VP9_ENCODER_MIPS_MSA_VP9_FDCT_MSA_H_ */