ref: e8b818b581b9ab7e9c8f7b1becd753dd4efbdf43
dir: /vp8/encoder/mips/msa/quantize_msa.c/
/*
* 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.
*/
#include "./vp8_rtcd.h"
#include "vp8/common/mips/msa/vp8_macros_msa.h"
#include "vp8/encoder/block.h"
static int8_t fast_quantize_b_msa(int16_t *coeff_ptr, int16_t *round,
int16_t *quant, int16_t *de_quant,
int16_t *q_coeff, int16_t *dq_coeff) {
int32_t cnt, eob;
v16i8 inv_zig_zag = { 0, 1, 5, 6, 2, 4, 7, 12, 3, 8, 11, 13, 9, 10, 14, 15 };
v8i16 round0, round1;
v8i16 sign_z0, sign_z1;
v8i16 q_coeff0, q_coeff1;
v8i16 x0, x1, de_quant0, de_quant1;
v8i16 coeff0, coeff1, z0, z1;
v8i16 quant0, quant1, quant2, quant3;
v8i16 zero = { 0 };
v8i16 inv_zig_zag0, inv_zig_zag1;
v8i16 zigzag_mask0 = { 0, 1, 4, 8, 5, 2, 3, 6 };
v8i16 zigzag_mask1 = { 9, 12, 13, 10, 7, 11, 14, 15 };
v8i16 temp0_h, temp1_h, temp2_h, temp3_h;
v4i32 temp0_w, temp1_w, temp2_w, temp3_w;
ILVRL_B2_SH(zero, inv_zig_zag, inv_zig_zag0, inv_zig_zag1);
eob = -1;
LD_SH2(coeff_ptr, 8, coeff0, coeff1);
VSHF_H2_SH(coeff0, coeff1, coeff0, coeff1, zigzag_mask0, zigzag_mask1, z0,
z1);
LD_SH2(round, 8, coeff0, coeff1);
VSHF_H2_SH(coeff0, coeff1, coeff0, coeff1, zigzag_mask0, zigzag_mask1, round0,
round1);
LD_SH2(quant, 8, coeff0, coeff1);
VSHF_H2_SH(coeff0, coeff1, coeff0, coeff1, zigzag_mask0, zigzag_mask1, quant0,
quant2);
sign_z0 = z0 >> 15;
sign_z1 = z1 >> 15;
x0 = __msa_add_a_h(z0, zero);
x1 = __msa_add_a_h(z1, zero);
ILVL_H2_SH(quant0, quant0, quant2, quant2, quant1, quant3);
ILVR_H2_SH(quant0, quant0, quant2, quant2, quant0, quant2);
ILVL_H2_SH(round0, x0, round1, x1, temp1_h, temp3_h);
ILVR_H2_SH(round0, x0, round1, x1, temp0_h, temp2_h);
DOTP_SH4_SW(temp0_h, temp1_h, temp2_h, temp3_h, quant0, quant1, quant2,
quant3, temp0_w, temp1_w, temp2_w, temp3_w);
SRA_4V(temp0_w, temp1_w, temp2_w, temp3_w, 16);
PCKEV_H2_SH(temp1_w, temp0_w, temp3_w, temp2_w, x0, x1);
x0 = x0 ^ sign_z0;
x1 = x1 ^ sign_z1;
SUB2(x0, sign_z0, x1, sign_z1, x0, x1);
VSHF_H2_SH(x0, x1, x0, x1, inv_zig_zag0, inv_zig_zag1, q_coeff0, q_coeff1);
ST_SH2(q_coeff0, q_coeff1, q_coeff, 8);
LD_SH2(de_quant, 8, de_quant0, de_quant1);
q_coeff0 *= de_quant0;
q_coeff1 *= de_quant1;
ST_SH2(q_coeff0, q_coeff1, dq_coeff, 8);
for (cnt = 0; cnt < 16; ++cnt) {
if ((cnt <= 7) && (x1[7 - cnt] != 0)) {
eob = (15 - cnt);
break;
}
if ((cnt > 7) && (x0[7 - (cnt - 8)] != 0)) {
eob = (7 - (cnt - 8));
break;
}
}
return (int8_t)(eob + 1);
}
static int8_t exact_regular_quantize_b_msa(
int16_t *zbin_boost, int16_t *coeff_ptr, int16_t *zbin, int16_t *round,
int16_t *quant, int16_t *quant_shift, int16_t *de_quant, int16_t zbin_oq_in,
int16_t *q_coeff, int16_t *dq_coeff) {
int32_t cnt, eob;
int16_t *boost_temp = zbin_boost;
v16i8 inv_zig_zag = { 0, 1, 5, 6, 2, 4, 7, 12, 3, 8, 11, 13, 9, 10, 14, 15 };
v8i16 round0, round1;
v8i16 sign_z0, sign_z1;
v8i16 q_coeff0, q_coeff1;
v8i16 z_bin0, z_bin1, zbin_o_q;
v8i16 x0, x1, sign_x0, sign_x1, de_quant0, de_quant1;
v8i16 coeff0, coeff1, z0, z1;
v8i16 quant0, quant1, quant2, quant3;
v8i16 zero = { 0 };
v8i16 inv_zig_zag0, inv_zig_zag1;
v8i16 zigzag_mask0 = { 0, 1, 4, 8, 5, 2, 3, 6 };
v8i16 zigzag_mask1 = { 9, 12, 13, 10, 7, 11, 14, 15 };
v8i16 temp0_h, temp1_h, temp2_h, temp3_h;
v4i32 temp0_w, temp1_w, temp2_w, temp3_w;
ILVRL_B2_SH(zero, inv_zig_zag, inv_zig_zag0, inv_zig_zag1);
zbin_o_q = __msa_fill_h(zbin_oq_in);
eob = -1;
LD_SH2(coeff_ptr, 8, coeff0, coeff1);
VSHF_H2_SH(coeff0, coeff1, coeff0, coeff1, zigzag_mask0, zigzag_mask1, z0,
z1);
LD_SH2(round, 8, coeff0, coeff1);
VSHF_H2_SH(coeff0, coeff1, coeff0, coeff1, zigzag_mask0, zigzag_mask1, round0,
round1);
LD_SH2(quant, 8, coeff0, coeff1);
VSHF_H2_SH(coeff0, coeff1, coeff0, coeff1, zigzag_mask0, zigzag_mask1, quant0,
quant2);
LD_SH2(zbin, 8, coeff0, coeff1);
VSHF_H2_SH(coeff0, coeff1, coeff0, coeff1, zigzag_mask0, zigzag_mask1, z_bin0,
z_bin1);
sign_z0 = z0 >> 15;
sign_z1 = z1 >> 15;
x0 = __msa_add_a_h(z0, zero);
x1 = __msa_add_a_h(z1, zero);
SUB2(x0, z_bin0, x1, z_bin1, z_bin0, z_bin1);
SUB2(z_bin0, zbin_o_q, z_bin1, zbin_o_q, z_bin0, z_bin1);
ILVL_H2_SH(quant0, quant0, quant2, quant2, quant1, quant3);
ILVR_H2_SH(quant0, quant0, quant2, quant2, quant0, quant2);
ILVL_H2_SH(round0, x0, round1, x1, temp1_h, temp3_h);
ILVR_H2_SH(round0, x0, round1, x1, temp0_h, temp2_h);
DOTP_SH4_SW(temp0_h, temp1_h, temp2_h, temp3_h, quant0, quant1, quant2,
quant3, temp0_w, temp1_w, temp2_w, temp3_w);
SRA_4V(temp0_w, temp1_w, temp2_w, temp3_w, 16);
PCKEV_H2_SH(temp1_w, temp0_w, temp3_w, temp2_w, temp0_h, temp2_h);
LD_SH2(quant_shift, 8, coeff0, coeff1);
VSHF_H2_SH(coeff0, coeff1, coeff0, coeff1, zigzag_mask0, zigzag_mask1, quant0,
quant2);
ILVL_H2_SH(quant0, quant0, quant2, quant2, quant1, quant3);
ILVR_H2_SH(quant0, quant0, quant2, quant2, quant0, quant2);
ADD2(x0, round0, x1, round1, x0, x1);
ILVL_H2_SH(temp0_h, x0, temp2_h, x1, temp1_h, temp3_h);
ILVR_H2_SH(temp0_h, x0, temp2_h, x1, temp0_h, temp2_h);
DOTP_SH4_SW(temp0_h, temp1_h, temp2_h, temp3_h, quant0, quant1, quant2,
quant3, temp0_w, temp1_w, temp2_w, temp3_w);
SRA_4V(temp0_w, temp1_w, temp2_w, temp3_w, 16);
PCKEV_H2_SH(temp1_w, temp0_w, temp3_w, temp2_w, x0, x1);
sign_x0 = x0 ^ sign_z0;
sign_x1 = x1 ^ sign_z1;
SUB2(sign_x0, sign_z0, sign_x1, sign_z1, sign_x0, sign_x1);
for (cnt = 0; cnt < 16; ++cnt) {
if (cnt <= 7) {
if (boost_temp[0] <= z_bin0[cnt]) {
if (x0[cnt]) {
eob = cnt;
boost_temp = zbin_boost;
} else {
boost_temp++;
}
} else {
sign_x0[cnt] = 0;
boost_temp++;
}
} else {
if (boost_temp[0] <= z_bin1[cnt - 8]) {
if (x1[cnt - 8]) {
eob = cnt;
boost_temp = zbin_boost;
} else {
boost_temp++;
}
} else {
sign_x1[cnt - 8] = 0;
boost_temp++;
}
}
}
VSHF_H2_SH(sign_x0, sign_x1, sign_x0, sign_x1, inv_zig_zag0, inv_zig_zag1,
q_coeff0, q_coeff1);
ST_SH2(q_coeff0, q_coeff1, q_coeff, 8);
LD_SH2(de_quant, 8, de_quant0, de_quant1);
MUL2(de_quant0, q_coeff0, de_quant1, q_coeff1, de_quant0, de_quant1);
ST_SH2(de_quant0, de_quant1, dq_coeff, 8);
return (int8_t)(eob + 1);
}
void vp8_fast_quantize_b_msa(BLOCK *b, BLOCKD *d) {
int16_t *coeff_ptr = b->coeff;
int16_t *round_ptr = b->round;
int16_t *quant_ptr = b->quant_fast;
int16_t *qcoeff_ptr = d->qcoeff;
int16_t *dqcoeff_ptr = d->dqcoeff;
int16_t *dequant_ptr = d->dequant;
*d->eob = fast_quantize_b_msa(coeff_ptr, round_ptr, quant_ptr, dequant_ptr,
qcoeff_ptr, dqcoeff_ptr);
}
void vp8_regular_quantize_b_msa(BLOCK *b, BLOCKD *d) {
int16_t *zbin_boost_ptr = b->zrun_zbin_boost;
int16_t *coeff_ptr = b->coeff;
int16_t *zbin_ptr = b->zbin;
int16_t *round_ptr = b->round;
int16_t *quant_ptr = b->quant;
int16_t *quant_shift_ptr = b->quant_shift;
int16_t *qcoeff_ptr = d->qcoeff;
int16_t *dqcoeff_ptr = d->dqcoeff;
int16_t *dequant_ptr = d->dequant;
int16_t zbin_oq_value = b->zbin_extra;
*d->eob = exact_regular_quantize_b_msa(
zbin_boost_ptr, coeff_ptr, zbin_ptr, round_ptr, quant_ptr,
quant_shift_ptr, dequant_ptr, zbin_oq_value, qcoeff_ptr, dqcoeff_ptr);
}