ref: 67aa6c8c23bc6ca90cfde756015f0aae61fe20f7
dir: /vp8/common/mips/msa/idct_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/blockd.h"
#include "vp8/common/mips/msa/vp8_macros_msa.h"
static const int32_t cospi8sqrt2minus1 = 20091;
static const int32_t sinpi8sqrt2 = 35468;
#define TRANSPOSE_TWO_4x4_H(in0, in1, in2, in3, out0, out1, out2, out3) \
{ \
v8i16 s4_m, s5_m, s6_m, s7_m; \
\
TRANSPOSE8X4_SH_SH(in0, in1, in2, in3, s4_m, s5_m, s6_m, s7_m); \
ILVR_D2_SH(s6_m, s4_m, s7_m, s5_m, out0, out2); \
out1 = (v8i16)__msa_ilvl_d((v2i64)s6_m, (v2i64)s4_m); \
out3 = (v8i16)__msa_ilvl_d((v2i64)s7_m, (v2i64)s5_m); \
}
#define EXPAND_TO_H_MULTIPLY_SINPI8SQRT2_PCK_TO_W(in) \
({ \
v8i16 out_m; \
v8i16 zero_m = { 0 }; \
v4i32 tmp1_m, tmp2_m; \
v4i32 sinpi8_sqrt2_m = __msa_fill_w(sinpi8sqrt2); \
\
ILVRL_H2_SW(in, zero_m, tmp1_m, tmp2_m); \
tmp1_m >>= 16; \
tmp2_m >>= 16; \
tmp1_m = (tmp1_m * sinpi8_sqrt2_m) >> 16; \
tmp2_m = (tmp2_m * sinpi8_sqrt2_m) >> 16; \
out_m = __msa_pckev_h((v8i16)tmp2_m, (v8i16)tmp1_m); \
\
out_m; \
})
#define VP8_IDCT_1D_H(in0, in1, in2, in3, out0, out1, out2, out3) \
{ \
v8i16 a1_m, b1_m, c1_m, d1_m; \
v8i16 c_tmp1_m, c_tmp2_m, d_tmp1_m, d_tmp2_m; \
v8i16 const_cospi8sqrt2minus1_m; \
\
const_cospi8sqrt2minus1_m = __msa_fill_h(cospi8sqrt2minus1); \
a1_m = in0 + in2; \
b1_m = in0 - in2; \
c_tmp1_m = EXPAND_TO_H_MULTIPLY_SINPI8SQRT2_PCK_TO_W(in1); \
c_tmp2_m = __msa_mul_q_h(in3, const_cospi8sqrt2minus1_m); \
c_tmp2_m = c_tmp2_m >> 1; \
c_tmp2_m = in3 + c_tmp2_m; \
c1_m = c_tmp1_m - c_tmp2_m; \
d_tmp1_m = __msa_mul_q_h(in1, const_cospi8sqrt2minus1_m); \
d_tmp1_m = d_tmp1_m >> 1; \
d_tmp1_m = in1 + d_tmp1_m; \
d_tmp2_m = EXPAND_TO_H_MULTIPLY_SINPI8SQRT2_PCK_TO_W(in3); \
d1_m = d_tmp1_m + d_tmp2_m; \
BUTTERFLY_4(a1_m, b1_m, c1_m, d1_m, out0, out1, out2, out3); \
}
#define VP8_IDCT_1D_W(in0, in1, in2, in3, out0, out1, out2, out3) \
{ \
v4i32 a1_m, b1_m, c1_m, d1_m; \
v4i32 c_tmp1_m, c_tmp2_m, d_tmp1_m, d_tmp2_m; \
v4i32 const_cospi8sqrt2minus1_m, sinpi8_sqrt2_m; \
\
const_cospi8sqrt2minus1_m = __msa_fill_w(cospi8sqrt2minus1); \
sinpi8_sqrt2_m = __msa_fill_w(sinpi8sqrt2); \
a1_m = in0 + in2; \
b1_m = in0 - in2; \
c_tmp1_m = (in1 * sinpi8_sqrt2_m) >> 16; \
c_tmp2_m = in3 + ((in3 * const_cospi8sqrt2minus1_m) >> 16); \
c1_m = c_tmp1_m - c_tmp2_m; \
d_tmp1_m = in1 + ((in1 * const_cospi8sqrt2minus1_m) >> 16); \
d_tmp2_m = (in3 * sinpi8_sqrt2_m) >> 16; \
d1_m = d_tmp1_m + d_tmp2_m; \
BUTTERFLY_4(a1_m, b1_m, c1_m, d1_m, out0, out1, out2, out3); \
}
static void idct4x4_addblk_msa(int16_t *input, uint8_t *pred,
int32_t pred_stride, uint8_t *dest,
int32_t dest_stride) {
v8i16 input0, input1;
v4i32 in0, in1, in2, in3, hz0, hz1, hz2, hz3, vt0, vt1, vt2, vt3;
v4i32 res0, res1, res2, res3;
v16i8 zero = { 0 };
v16i8 pred0, pred1, pred2, pred3;
LD_SH2(input, 8, input0, input1);
UNPCK_SH_SW(input0, in0, in1);
UNPCK_SH_SW(input1, in2, in3);
VP8_IDCT_1D_W(in0, in1, in2, in3, hz0, hz1, hz2, hz3);
TRANSPOSE4x4_SW_SW(hz0, hz1, hz2, hz3, hz0, hz1, hz2, hz3);
VP8_IDCT_1D_W(hz0, hz1, hz2, hz3, vt0, vt1, vt2, vt3);
SRARI_W4_SW(vt0, vt1, vt2, vt3, 3);
TRANSPOSE4x4_SW_SW(vt0, vt1, vt2, vt3, vt0, vt1, vt2, vt3);
LD_SB4(pred, pred_stride, pred0, pred1, pred2, pred3);
ILVR_B4_SW(zero, pred0, zero, pred1, zero, pred2, zero, pred3, res0, res1,
res2, res3);
ILVR_H4_SW(zero, res0, zero, res1, zero, res2, zero, res3, res0, res1, res2,
res3);
ADD4(res0, vt0, res1, vt1, res2, vt2, res3, vt3, res0, res1, res2, res3);
res0 = CLIP_SW_0_255(res0);
res1 = CLIP_SW_0_255(res1);
res2 = CLIP_SW_0_255(res2);
res3 = CLIP_SW_0_255(res3);
PCKEV_B2_SW(res0, res1, res2, res3, vt0, vt1);
res0 = (v4i32)__msa_pckev_b((v16i8)vt0, (v16i8)vt1);
ST4x4_UB(res0, res0, 3, 2, 1, 0, dest, dest_stride);
}
static void idct4x4_addconst_msa(int16_t in_dc, uint8_t *pred,
int32_t pred_stride, uint8_t *dest,
int32_t dest_stride) {
v8i16 vec, res0, res1, res2, res3, dst0, dst1;
v16i8 zero = { 0 };
v16i8 pred0, pred1, pred2, pred3;
vec = __msa_fill_h(in_dc);
vec = __msa_srari_h(vec, 3);
LD_SB4(pred, pred_stride, pred0, pred1, pred2, pred3);
ILVR_B4_SH(zero, pred0, zero, pred1, zero, pred2, zero, pred3, res0, res1,
res2, res3);
ADD4(res0, vec, res1, vec, res2, vec, res3, vec, res0, res1, res2, res3);
CLIP_SH4_0_255(res0, res1, res2, res3);
PCKEV_B2_SH(res1, res0, res3, res2, dst0, dst1);
dst0 = (v8i16)__msa_pckev_w((v4i32)dst1, (v4i32)dst0);
ST4x4_UB(dst0, dst0, 0, 1, 2, 3, dest, dest_stride);
}
void vp8_short_inv_walsh4x4_msa(int16_t *input, int16_t *mb_dqcoeff) {
v8i16 input0, input1, tmp0, tmp1, tmp2, tmp3, out0, out1;
const v8i16 mask0 = { 0, 1, 2, 3, 8, 9, 10, 11 };
const v8i16 mask1 = { 4, 5, 6, 7, 12, 13, 14, 15 };
const v8i16 mask2 = { 0, 4, 8, 12, 1, 5, 9, 13 };
const v8i16 mask3 = { 3, 7, 11, 15, 2, 6, 10, 14 };
LD_SH2(input, 8, input0, input1);
input1 = (v8i16)__msa_sldi_b((v16i8)input1, (v16i8)input1, 8);
tmp0 = input0 + input1;
tmp1 = input0 - input1;
VSHF_H2_SH(tmp0, tmp1, tmp0, tmp1, mask0, mask1, tmp2, tmp3);
out0 = tmp2 + tmp3;
out1 = tmp2 - tmp3;
VSHF_H2_SH(out0, out1, out0, out1, mask2, mask3, input0, input1);
tmp0 = input0 + input1;
tmp1 = input0 - input1;
VSHF_H2_SH(tmp0, tmp1, tmp0, tmp1, mask0, mask1, tmp2, tmp3);
tmp0 = tmp2 + tmp3;
tmp1 = tmp2 - tmp3;
ADD2(tmp0, 3, tmp1, 3, out0, out1);
out0 >>= 3;
out1 >>= 3;
mb_dqcoeff[0] = __msa_copy_s_h(out0, 0);
mb_dqcoeff[16] = __msa_copy_s_h(out0, 4);
mb_dqcoeff[32] = __msa_copy_s_h(out1, 0);
mb_dqcoeff[48] = __msa_copy_s_h(out1, 4);
mb_dqcoeff[64] = __msa_copy_s_h(out0, 1);
mb_dqcoeff[80] = __msa_copy_s_h(out0, 5);
mb_dqcoeff[96] = __msa_copy_s_h(out1, 1);
mb_dqcoeff[112] = __msa_copy_s_h(out1, 5);
mb_dqcoeff[128] = __msa_copy_s_h(out0, 2);
mb_dqcoeff[144] = __msa_copy_s_h(out0, 6);
mb_dqcoeff[160] = __msa_copy_s_h(out1, 2);
mb_dqcoeff[176] = __msa_copy_s_h(out1, 6);
mb_dqcoeff[192] = __msa_copy_s_h(out0, 3);
mb_dqcoeff[208] = __msa_copy_s_h(out0, 7);
mb_dqcoeff[224] = __msa_copy_s_h(out1, 3);
mb_dqcoeff[240] = __msa_copy_s_h(out1, 7);
}
static void dequant_idct4x4_addblk_msa(int16_t *input, int16_t *dequant_input,
uint8_t *dest, int32_t dest_stride) {
v8i16 input0, input1, dequant_in0, dequant_in1, mul0, mul1;
v8i16 in0, in1, in2, in3, hz0_h, hz1_h, hz2_h, hz3_h;
v16u8 dest0, dest1, dest2, dest3;
v4i32 hz0_w, hz1_w, hz2_w, hz3_w, vt0, vt1, vt2, vt3, res0, res1, res2, res3;
v2i64 zero = { 0 };
LD_SH2(input, 8, input0, input1);
LD_SH2(dequant_input, 8, dequant_in0, dequant_in1);
MUL2(input0, dequant_in0, input1, dequant_in1, mul0, mul1);
PCKEV_D2_SH(zero, mul0, zero, mul1, in0, in2);
PCKOD_D2_SH(zero, mul0, zero, mul1, in1, in3);
VP8_IDCT_1D_H(in0, in1, in2, in3, hz0_h, hz1_h, hz2_h, hz3_h);
PCKEV_D2_SH(hz1_h, hz0_h, hz3_h, hz2_h, mul0, mul1);
UNPCK_SH_SW(mul0, hz0_w, hz1_w);
UNPCK_SH_SW(mul1, hz2_w, hz3_w);
TRANSPOSE4x4_SW_SW(hz0_w, hz1_w, hz2_w, hz3_w, hz0_w, hz1_w, hz2_w, hz3_w);
VP8_IDCT_1D_W(hz0_w, hz1_w, hz2_w, hz3_w, vt0, vt1, vt2, vt3);
SRARI_W4_SW(vt0, vt1, vt2, vt3, 3);
TRANSPOSE4x4_SW_SW(vt0, vt1, vt2, vt3, vt0, vt1, vt2, vt3);
LD_UB4(dest, dest_stride, dest0, dest1, dest2, dest3);
ILVR_B4_SW(zero, dest0, zero, dest1, zero, dest2, zero, dest3, res0, res1,
res2, res3);
ILVR_H4_SW(zero, res0, zero, res1, zero, res2, zero, res3, res0, res1, res2,
res3);
ADD4(res0, vt0, res1, vt1, res2, vt2, res3, vt3, res0, res1, res2, res3);
res0 = CLIP_SW_0_255(res0);
res1 = CLIP_SW_0_255(res1);
res2 = CLIP_SW_0_255(res2);
res3 = CLIP_SW_0_255(res3);
PCKEV_B2_SW(res0, res1, res2, res3, vt0, vt1);
res0 = (v4i32)__msa_pckev_b((v16i8)vt0, (v16i8)vt1);
ST4x4_UB(res0, res0, 3, 2, 1, 0, dest, dest_stride);
}
static void dequant_idct4x4_addblk_2x_msa(int16_t *input,
int16_t *dequant_input, uint8_t *dest,
int32_t dest_stride) {
v16u8 dest0, dest1, dest2, dest3;
v8i16 in0, in1, in2, in3, mul0, mul1, mul2, mul3, dequant_in0, dequant_in1;
v8i16 hz0, hz1, hz2, hz3, vt0, vt1, vt2, vt3, res0, res1, res2, res3;
v4i32 hz0l, hz1l, hz2l, hz3l, hz0r, hz1r, hz2r, hz3r;
v4i32 vt0l, vt1l, vt2l, vt3l, vt0r, vt1r, vt2r, vt3r;
v16i8 zero = { 0 };
LD_SH4(input, 8, in0, in1, in2, in3);
LD_SH2(dequant_input, 8, dequant_in0, dequant_in1);
MUL4(in0, dequant_in0, in1, dequant_in1, in2, dequant_in0, in3, dequant_in1,
mul0, mul1, mul2, mul3);
PCKEV_D2_SH(mul2, mul0, mul3, mul1, in0, in2);
PCKOD_D2_SH(mul2, mul0, mul3, mul1, in1, in3);
VP8_IDCT_1D_H(in0, in1, in2, in3, hz0, hz1, hz2, hz3);
TRANSPOSE_TWO_4x4_H(hz0, hz1, hz2, hz3, hz0, hz1, hz2, hz3);
UNPCK_SH_SW(hz0, hz0r, hz0l);
UNPCK_SH_SW(hz1, hz1r, hz1l);
UNPCK_SH_SW(hz2, hz2r, hz2l);
UNPCK_SH_SW(hz3, hz3r, hz3l);
VP8_IDCT_1D_W(hz0l, hz1l, hz2l, hz3l, vt0l, vt1l, vt2l, vt3l);
SRARI_W4_SW(vt0l, vt1l, vt2l, vt3l, 3);
VP8_IDCT_1D_W(hz0r, hz1r, hz2r, hz3r, vt0r, vt1r, vt2r, vt3r);
SRARI_W4_SW(vt0r, vt1r, vt2r, vt3r, 3);
PCKEV_H4_SH(vt0l, vt0r, vt1l, vt1r, vt2l, vt2r, vt3l, vt3r, vt0, vt1, vt2,
vt3);
TRANSPOSE_TWO_4x4_H(vt0, vt1, vt2, vt3, vt0, vt1, vt2, vt3);
LD_UB4(dest, dest_stride, dest0, dest1, dest2, dest3);
ILVR_B4_SH(zero, dest0, zero, dest1, zero, dest2, zero, dest3, res0, res1,
res2, res3);
ADD4(res0, vt0, res1, vt1, res2, vt2, res3, vt3, res0, res1, res2, res3);
CLIP_SH4_0_255(res0, res1, res2, res3);
PCKEV_B2_SW(res1, res0, res3, res2, vt0l, vt1l);
ST8x4_UB(vt0l, vt1l, dest, dest_stride);
__asm__ __volatile__(
"sw $zero, 0(%[input]) \n\t"
"sw $zero, 4(%[input]) \n\t"
"sw $zero, 8(%[input]) \n\t"
"sw $zero, 12(%[input]) \n\t"
"sw $zero, 16(%[input]) \n\t"
"sw $zero, 20(%[input]) \n\t"
"sw $zero, 24(%[input]) \n\t"
"sw $zero, 28(%[input]) \n\t"
"sw $zero, 32(%[input]) \n\t"
"sw $zero, 36(%[input]) \n\t"
"sw $zero, 40(%[input]) \n\t"
"sw $zero, 44(%[input]) \n\t"
"sw $zero, 48(%[input]) \n\t"
"sw $zero, 52(%[input]) \n\t"
"sw $zero, 56(%[input]) \n\t"
"sw $zero, 60(%[input]) \n\t" ::
[input] "r"(input));
}
static void dequant_idct_addconst_2x_msa(int16_t *input, int16_t *dequant_input,
uint8_t *dest, int32_t dest_stride) {
v8i16 input_dc0, input_dc1, vec, res0, res1, res2, res3;
v16u8 dest0, dest1, dest2, dest3;
v16i8 zero = { 0 };
input_dc0 = __msa_fill_h(input[0] * dequant_input[0]);
input_dc1 = __msa_fill_h(input[16] * dequant_input[0]);
SRARI_H2_SH(input_dc0, input_dc1, 3);
vec = (v8i16)__msa_pckev_d((v2i64)input_dc1, (v2i64)input_dc0);
input[0] = 0;
input[16] = 0;
LD_UB4(dest, dest_stride, dest0, dest1, dest2, dest3);
ILVR_B4_SH(zero, dest0, zero, dest1, zero, dest2, zero, dest3, res0, res1,
res2, res3);
ADD4(res0, vec, res1, vec, res2, vec, res3, vec, res0, res1, res2, res3);
CLIP_SH4_0_255(res0, res1, res2, res3);
PCKEV_B2_SH(res1, res0, res3, res2, res0, res1);
ST8x4_UB(res0, res1, dest, dest_stride);
}
void vp8_short_idct4x4llm_msa(int16_t *input, uint8_t *pred_ptr,
int32_t pred_stride, uint8_t *dst_ptr,
int32_t dst_stride) {
idct4x4_addblk_msa(input, pred_ptr, pred_stride, dst_ptr, dst_stride);
}
void vp8_dc_only_idct_add_msa(int16_t input_dc, uint8_t *pred_ptr,
int32_t pred_stride, uint8_t *dst_ptr,
int32_t dst_stride) {
idct4x4_addconst_msa(input_dc, pred_ptr, pred_stride, dst_ptr, dst_stride);
}
void vp8_dequantize_b_msa(BLOCKD *d, int16_t *DQC) {
v8i16 dqc0, dqc1, q0, q1, dq0, dq1;
LD_SH2(DQC, 8, dqc0, dqc1);
LD_SH2(d->qcoeff, 8, q0, q1);
MUL2(dqc0, q0, dqc1, q1, dq0, dq1);
ST_SH2(dq0, dq1, d->dqcoeff, 8);
}
void vp8_dequant_idct_add_msa(int16_t *input, int16_t *dq, uint8_t *dest,
int32_t stride) {
dequant_idct4x4_addblk_msa(input, dq, dest, stride);
__asm__ __volatile__(
"sw $zero, 0(%[input]) \n\t"
"sw $zero, 4(%[input]) \n\t"
"sw $zero, 8(%[input]) \n\t"
"sw $zero, 12(%[input]) \n\t"
"sw $zero, 16(%[input]) \n\t"
"sw $zero, 20(%[input]) \n\t"
"sw $zero, 24(%[input]) \n\t"
"sw $zero, 28(%[input]) \n\t"
:
: [input] "r"(input));
}
void vp8_dequant_idct_add_y_block_msa(int16_t *q, int16_t *dq, uint8_t *dst,
int32_t stride, char *eobs) {
int16_t *eobs_h = (int16_t *)eobs;
uint8_t i;
for (i = 4; i--;) {
if (eobs_h[0]) {
if (eobs_h[0] & 0xfefe) {
dequant_idct4x4_addblk_2x_msa(q, dq, dst, stride);
} else {
dequant_idct_addconst_2x_msa(q, dq, dst, stride);
}
}
q += 32;
if (eobs_h[1]) {
if (eobs_h[1] & 0xfefe) {
dequant_idct4x4_addblk_2x_msa(q, dq, dst + 8, stride);
} else {
dequant_idct_addconst_2x_msa(q, dq, dst + 8, stride);
}
}
q += 32;
dst += (4 * stride);
eobs_h += 2;
}
}
void vp8_dequant_idct_add_uv_block_msa(int16_t *q, int16_t *dq, uint8_t *dst_u,
uint8_t *dst_v, int32_t stride,
char *eobs) {
int16_t *eobs_h = (int16_t *)eobs;
if (eobs_h[0]) {
if (eobs_h[0] & 0xfefe) {
dequant_idct4x4_addblk_2x_msa(q, dq, dst_u, stride);
} else {
dequant_idct_addconst_2x_msa(q, dq, dst_u, stride);
}
}
q += 32;
dst_u += (stride * 4);
if (eobs_h[1]) {
if (eobs_h[1] & 0xfefe) {
dequant_idct4x4_addblk_2x_msa(q, dq, dst_u, stride);
} else {
dequant_idct_addconst_2x_msa(q, dq, dst_u, stride);
}
}
q += 32;
if (eobs_h[2]) {
if (eobs_h[2] & 0xfefe) {
dequant_idct4x4_addblk_2x_msa(q, dq, dst_v, stride);
} else {
dequant_idct_addconst_2x_msa(q, dq, dst_v, stride);
}
}
q += 32;
dst_v += (stride * 4);
if (eobs_h[3]) {
if (eobs_h[3] & 0xfefe) {
dequant_idct4x4_addblk_2x_msa(q, dq, dst_v, stride);
} else {
dequant_idct_addconst_2x_msa(q, dq, dst_v, stride);
}
}
}