ref: bd990cad72ecdc864ebfd4470dbbd747974f3aa9
dir: /vpx_dsp/mips/fwd_txfm_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 VPX_DSP_MIPS_FWD_TXFM_MSA_H_
#define VPX_DSP_MIPS_FWD_TXFM_MSA_H_
#include "vpx_dsp/mips/txfm_macros_msa.h"
#include "vpx_dsp/txfm_common.h"
#define VP9_FDCT4(in0, in1, in2, in3, out0, out1, out2, out3) \
{ \
v8i16 cnst0_m, cnst1_m, cnst2_m, cnst3_m; \
v8i16 vec0_m, vec1_m, vec2_m, vec3_m; \
v4i32 vec4_m, vec5_m, vec6_m, vec7_m; \
v8i16 coeff_m = { \
cospi_16_64, -cospi_16_64, cospi_8_64, cospi_24_64, -cospi_8_64, 0, 0, 0 \
}; \
\
BUTTERFLY_4(in0, in1, in2, in3, vec0_m, vec1_m, vec2_m, vec3_m); \
ILVR_H2_SH(vec1_m, vec0_m, vec3_m, vec2_m, vec0_m, vec2_m); \
SPLATI_H2_SH(coeff_m, 0, 1, cnst0_m, cnst1_m); \
cnst1_m = __msa_ilvev_h(cnst1_m, cnst0_m); \
vec5_m = __msa_dotp_s_w(vec0_m, cnst1_m); \
\
SPLATI_H2_SH(coeff_m, 4, 3, cnst2_m, cnst3_m); \
cnst2_m = __msa_ilvev_h(cnst3_m, cnst2_m); \
vec7_m = __msa_dotp_s_w(vec2_m, cnst2_m); \
\
vec4_m = __msa_dotp_s_w(vec0_m, cnst0_m); \
cnst2_m = __msa_splati_h(coeff_m, 2); \
cnst2_m = __msa_ilvev_h(cnst2_m, cnst3_m); \
vec6_m = __msa_dotp_s_w(vec2_m, cnst2_m); \
\
SRARI_W4_SW(vec4_m, vec5_m, vec6_m, vec7_m, DCT_CONST_BITS); \
PCKEV_H4_SH(vec4_m, vec4_m, vec5_m, vec5_m, vec6_m, vec6_m, vec7_m, \
vec7_m, out0, out2, out1, out3); \
}
#define SRLI_AVE_S_4V_H(in0, in1, in2, in3, in4, in5, in6, in7) \
{ \
v8i16 vec0_m, vec1_m, vec2_m, vec3_m, vec4_m, vec5_m, vec6_m, vec7_m; \
\
SRLI_H4_SH(in0, in1, in2, in3, vec0_m, vec1_m, vec2_m, vec3_m, 15); \
SRLI_H4_SH(in4, in5, in6, in7, vec4_m, vec5_m, vec6_m, vec7_m, 15); \
AVE_SH4_SH(vec0_m, in0, vec1_m, in1, vec2_m, in2, vec3_m, in3, in0, in1, \
in2, in3); \
AVE_SH4_SH(vec4_m, in4, vec5_m, in5, vec6_m, in6, vec7_m, in7, in4, in5, \
in6, in7); \
}
#define VP9_FDCT8(in0, in1, in2, in3, in4, in5, in6, in7, out0, out1, out2, \
out3, out4, out5, out6, out7) \
{ \
v8i16 s0_m, s1_m, s2_m, s3_m, s4_m, s5_m, s6_m; \
v8i16 s7_m, x0_m, x1_m, x2_m, x3_m; \
v8i16 coeff_m = { cospi_16_64, -cospi_16_64, cospi_8_64, cospi_24_64, \
cospi_4_64, cospi_28_64, cospi_12_64, cospi_20_64 }; \
\
/* FDCT stage1 */ \
BUTTERFLY_8(in0, in1, in2, in3, in4, in5, in6, in7, s0_m, s1_m, s2_m, \
s3_m, s4_m, s5_m, s6_m, s7_m); \
BUTTERFLY_4(s0_m, s1_m, s2_m, s3_m, x0_m, x1_m, x2_m, x3_m); \
ILVL_H2_SH(x1_m, x0_m, x3_m, x2_m, s0_m, s2_m); \
ILVR_H2_SH(x1_m, x0_m, x3_m, x2_m, s1_m, s3_m); \
SPLATI_H2_SH(coeff_m, 0, 1, x0_m, x1_m); \
x1_m = __msa_ilvev_h(x1_m, x0_m); \
out4 = DOT_SHIFT_RIGHT_PCK_H(s0_m, s1_m, x1_m); \
\
SPLATI_H2_SH(coeff_m, 2, 3, x2_m, x3_m); \
x2_m = -x2_m; \
x2_m = __msa_ilvev_h(x3_m, x2_m); \
out6 = DOT_SHIFT_RIGHT_PCK_H(s2_m, s3_m, x2_m); \
\
out0 = DOT_SHIFT_RIGHT_PCK_H(s0_m, s1_m, x0_m); \
x2_m = __msa_splati_h(coeff_m, 2); \
x2_m = __msa_ilvev_h(x2_m, x3_m); \
out2 = DOT_SHIFT_RIGHT_PCK_H(s2_m, s3_m, x2_m); \
\
/* stage2 */ \
ILVRL_H2_SH(s5_m, s6_m, s1_m, s0_m); \
\
s6_m = DOT_SHIFT_RIGHT_PCK_H(s0_m, s1_m, x0_m); \
s5_m = DOT_SHIFT_RIGHT_PCK_H(s0_m, s1_m, x1_m); \
\
/* stage3 */ \
BUTTERFLY_4(s4_m, s7_m, s6_m, s5_m, x0_m, x3_m, x2_m, x1_m); \
\
/* stage4 */ \
ILVL_H2_SH(x3_m, x0_m, x2_m, x1_m, s4_m, s6_m); \
ILVR_H2_SH(x3_m, x0_m, x2_m, x1_m, s5_m, s7_m); \
\
SPLATI_H2_SH(coeff_m, 4, 5, x0_m, x1_m); \
x1_m = __msa_ilvev_h(x0_m, x1_m); \
out1 = DOT_SHIFT_RIGHT_PCK_H(s4_m, s5_m, x1_m); \
\
SPLATI_H2_SH(coeff_m, 6, 7, x2_m, x3_m); \
x2_m = __msa_ilvev_h(x3_m, x2_m); \
out5 = DOT_SHIFT_RIGHT_PCK_H(s6_m, s7_m, x2_m); \
\
x1_m = __msa_splati_h(coeff_m, 5); \
x0_m = -x0_m; \
x0_m = __msa_ilvev_h(x1_m, x0_m); \
out7 = DOT_SHIFT_RIGHT_PCK_H(s4_m, s5_m, x0_m); \
\
x2_m = __msa_splati_h(coeff_m, 6); \
x3_m = -x3_m; \
x2_m = __msa_ilvev_h(x2_m, x3_m); \
out3 = DOT_SHIFT_RIGHT_PCK_H(s6_m, s7_m, x2_m); \
}
#define FDCT8x16_EVEN(in0, in1, in2, in3, in4, in5, in6, in7, out0, out1, \
out2, out3, out4, out5, out6, out7) \
{ \
v8i16 s0_m, s1_m, s2_m, s3_m, s4_m, s5_m, s6_m, s7_m; \
v8i16 x0_m, x1_m, x2_m, x3_m; \
v8i16 coeff_m = { cospi_16_64, -cospi_16_64, cospi_8_64, cospi_24_64, \
cospi_4_64, cospi_28_64, cospi_12_64, cospi_20_64 }; \
\
/* FDCT stage1 */ \
BUTTERFLY_8(in0, in1, in2, in3, in4, in5, in6, in7, s0_m, s1_m, s2_m, \
s3_m, s4_m, s5_m, s6_m, s7_m); \
BUTTERFLY_4(s0_m, s1_m, s2_m, s3_m, x0_m, x1_m, x2_m, x3_m); \
ILVL_H2_SH(x1_m, x0_m, x3_m, x2_m, s0_m, s2_m); \
ILVR_H2_SH(x1_m, x0_m, x3_m, x2_m, s1_m, s3_m); \
SPLATI_H2_SH(coeff_m, 0, 1, x0_m, x1_m); \
x1_m = __msa_ilvev_h(x1_m, x0_m); \
out4 = DOT_SHIFT_RIGHT_PCK_H(s0_m, s1_m, x1_m); \
\
SPLATI_H2_SH(coeff_m, 2, 3, x2_m, x3_m); \
x2_m = -x2_m; \
x2_m = __msa_ilvev_h(x3_m, x2_m); \
out6 = DOT_SHIFT_RIGHT_PCK_H(s2_m, s3_m, x2_m); \
\
out0 = DOT_SHIFT_RIGHT_PCK_H(s0_m, s1_m, x0_m); \
x2_m = __msa_splati_h(coeff_m, 2); \
x2_m = __msa_ilvev_h(x2_m, x3_m); \
out2 = DOT_SHIFT_RIGHT_PCK_H(s2_m, s3_m, x2_m); \
\
/* stage2 */ \
ILVRL_H2_SH(s5_m, s6_m, s1_m, s0_m); \
\
s6_m = DOT_SHIFT_RIGHT_PCK_H(s0_m, s1_m, x0_m); \
s5_m = DOT_SHIFT_RIGHT_PCK_H(s0_m, s1_m, x1_m); \
\
/* stage3 */ \
BUTTERFLY_4(s4_m, s7_m, s6_m, s5_m, x0_m, x3_m, x2_m, x1_m); \
\
/* stage4 */ \
ILVL_H2_SH(x3_m, x0_m, x2_m, x1_m, s4_m, s6_m); \
ILVR_H2_SH(x3_m, x0_m, x2_m, x1_m, s5_m, s7_m); \
\
SPLATI_H2_SH(coeff_m, 4, 5, x0_m, x1_m); \
x1_m = __msa_ilvev_h(x0_m, x1_m); \
out1 = DOT_SHIFT_RIGHT_PCK_H(s4_m, s5_m, x1_m); \
\
SPLATI_H2_SH(coeff_m, 6, 7, x2_m, x3_m); \
x2_m = __msa_ilvev_h(x3_m, x2_m); \
out5 = DOT_SHIFT_RIGHT_PCK_H(s6_m, s7_m, x2_m); \
\
x1_m = __msa_splati_h(coeff_m, 5); \
x0_m = -x0_m; \
x0_m = __msa_ilvev_h(x1_m, x0_m); \
out7 = DOT_SHIFT_RIGHT_PCK_H(s4_m, s5_m, x0_m); \
\
x2_m = __msa_splati_h(coeff_m, 6); \
x3_m = -x3_m; \
x2_m = __msa_ilvev_h(x2_m, x3_m); \
out3 = DOT_SHIFT_RIGHT_PCK_H(s6_m, s7_m, x2_m); \
}
#define FDCT8x16_ODD(input0, input1, input2, input3, input4, input5, input6, \
input7, out1, out3, out5, out7, out9, out11, out13, \
out15) \
{ \
v8i16 stp21_m, stp22_m, stp23_m, stp24_m, stp25_m, stp26_m; \
v8i16 stp30_m, stp31_m, stp32_m, stp33_m, stp34_m, stp35_m; \
v8i16 stp36_m, stp37_m, vec0_m, vec1_m; \
v8i16 vec2_m, vec3_m, vec4_m, vec5_m, vec6_m; \
v8i16 cnst0_m, cnst1_m, cnst4_m, cnst5_m; \
v8i16 coeff_m = { cospi_16_64, -cospi_16_64, cospi_8_64, cospi_24_64, \
-cospi_8_64, -cospi_24_64, cospi_12_64, cospi_20_64 }; \
v8i16 coeff1_m = { cospi_2_64, cospi_30_64, cospi_14_64, cospi_18_64, \
cospi_10_64, cospi_22_64, cospi_6_64, cospi_26_64 }; \
v8i16 coeff2_m = { \
-cospi_2_64, -cospi_10_64, -cospi_18_64, -cospi_26_64, 0, 0, 0, 0 \
}; \
\
/* stp 1 */ \
ILVL_H2_SH(input2, input5, input3, input4, vec2_m, vec4_m); \
ILVR_H2_SH(input2, input5, input3, input4, vec3_m, vec5_m); \
\
cnst4_m = __msa_splati_h(coeff_m, 0); \
stp25_m = DOT_SHIFT_RIGHT_PCK_H(vec2_m, vec3_m, cnst4_m); \
\
cnst5_m = __msa_splati_h(coeff_m, 1); \
cnst5_m = __msa_ilvev_h(cnst5_m, cnst4_m); \
stp22_m = DOT_SHIFT_RIGHT_PCK_H(vec2_m, vec3_m, cnst5_m); \
stp24_m = DOT_SHIFT_RIGHT_PCK_H(vec4_m, vec5_m, cnst4_m); \
stp23_m = DOT_SHIFT_RIGHT_PCK_H(vec4_m, vec5_m, cnst5_m); \
\
/* stp2 */ \
BUTTERFLY_4(input0, input1, stp22_m, stp23_m, stp30_m, stp31_m, stp32_m, \
stp33_m); \
BUTTERFLY_4(input7, input6, stp25_m, stp24_m, stp37_m, stp36_m, stp35_m, \
stp34_m); \
\
ILVL_H2_SH(stp36_m, stp31_m, stp35_m, stp32_m, vec2_m, vec4_m); \
ILVR_H2_SH(stp36_m, stp31_m, stp35_m, stp32_m, vec3_m, vec5_m); \
\
SPLATI_H2_SH(coeff_m, 2, 3, cnst0_m, cnst1_m); \
cnst0_m = __msa_ilvev_h(cnst0_m, cnst1_m); \
stp26_m = DOT_SHIFT_RIGHT_PCK_H(vec2_m, vec3_m, cnst0_m); \
\
cnst0_m = __msa_splati_h(coeff_m, 4); \
cnst1_m = __msa_ilvev_h(cnst1_m, cnst0_m); \
stp21_m = DOT_SHIFT_RIGHT_PCK_H(vec2_m, vec3_m, cnst1_m); \
\
SPLATI_H2_SH(coeff_m, 5, 2, cnst0_m, cnst1_m); \
cnst1_m = __msa_ilvev_h(cnst0_m, cnst1_m); \
stp25_m = DOT_SHIFT_RIGHT_PCK_H(vec4_m, vec5_m, cnst1_m); \
\
cnst0_m = __msa_splati_h(coeff_m, 3); \
cnst1_m = __msa_ilvev_h(cnst1_m, cnst0_m); \
stp22_m = DOT_SHIFT_RIGHT_PCK_H(vec4_m, vec5_m, cnst1_m); \
\
/* stp4 */ \
BUTTERFLY_4(stp30_m, stp37_m, stp26_m, stp21_m, vec6_m, vec2_m, vec4_m, \
vec5_m); \
BUTTERFLY_4(stp33_m, stp34_m, stp25_m, stp22_m, stp21_m, stp23_m, stp24_m, \
stp31_m); \
\
ILVRL_H2_SH(vec2_m, vec6_m, vec1_m, vec0_m); \
SPLATI_H2_SH(coeff1_m, 0, 1, cnst0_m, cnst1_m); \
cnst0_m = __msa_ilvev_h(cnst0_m, cnst1_m); \
\
out1 = DOT_SHIFT_RIGHT_PCK_H(vec0_m, vec1_m, cnst0_m); \
\
cnst0_m = __msa_splati_h(coeff2_m, 0); \
cnst0_m = __msa_ilvev_h(cnst1_m, cnst0_m); \
out15 = DOT_SHIFT_RIGHT_PCK_H(vec0_m, vec1_m, cnst0_m); \
\
ILVRL_H2_SH(vec4_m, vec5_m, vec1_m, vec0_m); \
SPLATI_H2_SH(coeff1_m, 2, 3, cnst0_m, cnst1_m); \
cnst1_m = __msa_ilvev_h(cnst1_m, cnst0_m); \
\
out9 = DOT_SHIFT_RIGHT_PCK_H(vec0_m, vec1_m, cnst1_m); \
\
cnst1_m = __msa_splati_h(coeff2_m, 2); \
cnst0_m = __msa_ilvev_h(cnst0_m, cnst1_m); \
out7 = DOT_SHIFT_RIGHT_PCK_H(vec0_m, vec1_m, cnst0_m); \
\
ILVRL_H2_SH(stp23_m, stp21_m, vec1_m, vec0_m); \
SPLATI_H2_SH(coeff1_m, 4, 5, cnst0_m, cnst1_m); \
cnst0_m = __msa_ilvev_h(cnst0_m, cnst1_m); \
out5 = DOT_SHIFT_RIGHT_PCK_H(vec0_m, vec1_m, cnst0_m); \
\
cnst0_m = __msa_splati_h(coeff2_m, 1); \
cnst0_m = __msa_ilvev_h(cnst1_m, cnst0_m); \
out11 = DOT_SHIFT_RIGHT_PCK_H(vec0_m, vec1_m, cnst0_m); \
\
ILVRL_H2_SH(stp24_m, stp31_m, vec1_m, vec0_m); \
SPLATI_H2_SH(coeff1_m, 6, 7, cnst0_m, cnst1_m); \
cnst1_m = __msa_ilvev_h(cnst1_m, cnst0_m); \
\
out13 = DOT_SHIFT_RIGHT_PCK_H(vec0_m, vec1_m, cnst1_m); \
\
cnst1_m = __msa_splati_h(coeff2_m, 3); \
cnst0_m = __msa_ilvev_h(cnst0_m, cnst1_m); \
out3 = DOT_SHIFT_RIGHT_PCK_H(vec0_m, vec1_m, cnst0_m); \
}
#define FDCT_POSTPROC_2V_NEG_H(vec0, vec1) \
{ \
v8i16 tp0_m, tp1_m; \
v8i16 one_m = __msa_ldi_h(1); \
\
tp0_m = __msa_clti_s_h(vec0, 0); \
tp1_m = __msa_clti_s_h(vec1, 0); \
vec0 += 1; \
vec1 += 1; \
tp0_m = one_m & tp0_m; \
tp1_m = one_m & tp1_m; \
vec0 += tp0_m; \
vec1 += tp1_m; \
vec0 >>= 2; \
vec1 >>= 2; \
}
#define FDCT32_POSTPROC_NEG_W(vec) \
{ \
v4i32 temp_m; \
v4i32 one_m = __msa_ldi_w(1); \
\
temp_m = __msa_clti_s_w(vec, 0); \
vec += 1; \
temp_m = one_m & temp_m; \
vec += temp_m; \
vec >>= 2; \
}
#define FDCT32_POSTPROC_2V_POS_H(vec0, vec1) \
{ \
v8i16 tp0_m, tp1_m; \
v8i16 one = __msa_ldi_h(1); \
\
tp0_m = __msa_clei_s_h(vec0, 0); \
tp1_m = __msa_clei_s_h(vec1, 0); \
tp0_m = (v8i16)__msa_xori_b((v16u8)tp0_m, 255); \
tp1_m = (v8i16)__msa_xori_b((v16u8)tp1_m, 255); \
vec0 += 1; \
vec1 += 1; \
tp0_m = one & tp0_m; \
tp1_m = one & tp1_m; \
vec0 += tp0_m; \
vec1 += tp1_m; \
vec0 >>= 2; \
vec1 >>= 2; \
}
#define DOTP_CONST_PAIR_W(reg0_left, reg1_left, reg0_right, reg1_right, \
const0, const1, out0, out1, out2, out3) \
{ \
v4i32 s0_m, s1_m, s2_m, s3_m, s4_m, s5_m, s6_m, s7_m; \
v2i64 tp0_m, tp1_m, tp2_m, tp3_m; \
v4i32 k0_m = __msa_fill_w((int32_t)const0); \
\
s0_m = __msa_fill_w((int32_t)const1); \
k0_m = __msa_ilvev_w(s0_m, k0_m); \
\
ILVRL_W2_SW(-reg1_left, reg0_left, s1_m, s0_m); \
ILVRL_W2_SW(reg0_left, reg1_left, s3_m, s2_m); \
ILVRL_W2_SW(-reg1_right, reg0_right, s5_m, s4_m); \
ILVRL_W2_SW(reg0_right, reg1_right, s7_m, s6_m); \
\
DOTP_SW2_SD(s0_m, s1_m, k0_m, k0_m, tp0_m, tp1_m); \
DOTP_SW2_SD(s4_m, s5_m, k0_m, k0_m, tp2_m, tp3_m); \
tp0_m = __msa_srari_d(tp0_m, DCT_CONST_BITS); \
tp1_m = __msa_srari_d(tp1_m, DCT_CONST_BITS); \
tp2_m = __msa_srari_d(tp2_m, DCT_CONST_BITS); \
tp3_m = __msa_srari_d(tp3_m, DCT_CONST_BITS); \
out0 = __msa_pckev_w((v4i32)tp0_m, (v4i32)tp1_m); \
out1 = __msa_pckev_w((v4i32)tp2_m, (v4i32)tp3_m); \
\
DOTP_SW2_SD(s2_m, s3_m, k0_m, k0_m, tp0_m, tp1_m); \
DOTP_SW2_SD(s6_m, s7_m, k0_m, k0_m, tp2_m, tp3_m); \
tp0_m = __msa_srari_d(tp0_m, DCT_CONST_BITS); \
tp1_m = __msa_srari_d(tp1_m, DCT_CONST_BITS); \
tp2_m = __msa_srari_d(tp2_m, DCT_CONST_BITS); \
tp3_m = __msa_srari_d(tp3_m, DCT_CONST_BITS); \
out2 = __msa_pckev_w((v4i32)tp0_m, (v4i32)tp1_m); \
out3 = __msa_pckev_w((v4i32)tp2_m, (v4i32)tp3_m); \
}
void fdct8x16_1d_column(const int16_t *input, int16_t *tmp_ptr,
int32_t src_stride);
void fdct16x8_1d_row(int16_t *input, int16_t *output);
#endif // VPX_DSP_MIPS_FWD_TXFM_MSA_H_