1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
|
/*
* 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 "./vpx_dsp_rtcd.h"
#include "vpx_dsp/mips/inv_txfm_msa.h"
void vpx_iwht4x4_16_add_msa(const int16_t *input, uint8_t *dst,
int32_t dst_stride) {
v8i16 in0, in1, in2, in3;
v4i32 in0_r, in1_r, in2_r, in3_r, in4_r;
/* load vector elements of 4x4 block */
LD4x4_SH(input, in0, in2, in3, in1);
TRANSPOSE4x4_SH_SH(in0, in2, in3, in1, in0, in2, in3, in1);
UNPCK_R_SH_SW(in0, in0_r);
UNPCK_R_SH_SW(in2, in2_r);
UNPCK_R_SH_SW(in3, in3_r);
UNPCK_R_SH_SW(in1, in1_r);
SRA_4V(in0_r, in1_r, in2_r, in3_r, UNIT_QUANT_SHIFT);
in0_r += in2_r;
in3_r -= in1_r;
in4_r = (in0_r - in3_r) >> 1;
in1_r = in4_r - in1_r;
in2_r = in4_r - in2_r;
in0_r -= in1_r;
in3_r += in2_r;
TRANSPOSE4x4_SW_SW(in0_r, in1_r, in2_r, in3_r, in0_r, in1_r, in2_r, in3_r);
in0_r += in1_r;
in2_r -= in3_r;
in4_r = (in0_r - in2_r) >> 1;
in3_r = in4_r - in3_r;
in1_r = in4_r - in1_r;
in0_r -= in3_r;
in2_r += in1_r;
PCKEV_H4_SH(in0_r, in0_r, in1_r, in1_r, in2_r, in2_r, in3_r, in3_r, in0, in1,
in2, in3);
ADDBLK_ST4x4_UB(in0, in3, in1, in2, dst, dst_stride);
}
void vpx_iwht4x4_1_add_msa(const int16_t *input, uint8_t *dst,
int32_t dst_stride) {
int16_t a1, e1;
v8i16 in1, in0 = { 0 };
a1 = input[0] >> UNIT_QUANT_SHIFT;
e1 = a1 >> 1;
a1 -= e1;
in0 = __msa_insert_h(in0, 0, a1);
in0 = __msa_insert_h(in0, 1, e1);
in0 = __msa_insert_h(in0, 2, e1);
in0 = __msa_insert_h(in0, 3, e1);
in1 = in0 >> 1;
in0 -= in1;
ADDBLK_ST4x4_UB(in0, in1, in1, in1, dst, dst_stride);
}
void vpx_idct4x4_16_add_msa(const int16_t *input, uint8_t *dst,
int32_t dst_stride) {
v8i16 in0, in1, in2, in3;
/* load vector elements of 4x4 block */
LD4x4_SH(input, in0, in1, in2, in3);
/* rows */
TRANSPOSE4x4_SH_SH(in0, in1, in2, in3, in0, in1, in2, in3);
VP9_IDCT4x4(in0, in1, in2, in3, in0, in1, in2, in3);
/* columns */
TRANSPOSE4x4_SH_SH(in0, in1, in2, in3, in0, in1, in2, in3);
VP9_IDCT4x4(in0, in1, in2, in3, in0, in1, in2, in3);
/* rounding (add 2^3, divide by 2^4) */
SRARI_H4_SH(in0, in1, in2, in3, 4);
ADDBLK_ST4x4_UB(in0, in1, in2, in3, dst, dst_stride);
}
void vpx_idct4x4_1_add_msa(const int16_t *input, uint8_t *dst,
int32_t dst_stride) {
int16_t out;
v8i16 vec;
out = ROUND_POWER_OF_TWO((input[0] * cospi_16_64), DCT_CONST_BITS);
out = ROUND_POWER_OF_TWO((out * cospi_16_64), DCT_CONST_BITS);
out = ROUND_POWER_OF_TWO(out, 4);
vec = __msa_fill_h(out);
ADDBLK_ST4x4_UB(vec, vec, vec, vec, dst, dst_stride);
}
|
