1 /*
2 * Copyright (c) 2015 The WebM project authors. All Rights Reserved.
3 *
4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree.
9 */
10
11 #include "vpx_dsp/mips/inv_txfm_msa.h"
12
vpx_iwht4x4_16_add_msa(const int16_t * input,uint8_t * dst,int32_t dst_stride)13 void vpx_iwht4x4_16_add_msa(const int16_t *input, uint8_t *dst,
14 int32_t dst_stride) {
15 v8i16 in0, in1, in2, in3;
16 v4i32 in0_r, in1_r, in2_r, in3_r, in4_r;
17
18 /* load vector elements of 4x4 block */
19 LD4x4_SH(input, in0, in2, in3, in1);
20 TRANSPOSE4x4_SH_SH(in0, in2, in3, in1, in0, in2, in3, in1);
21 UNPCK_R_SH_SW(in0, in0_r);
22 UNPCK_R_SH_SW(in2, in2_r);
23 UNPCK_R_SH_SW(in3, in3_r);
24 UNPCK_R_SH_SW(in1, in1_r);
25 SRA_4V(in0_r, in1_r, in2_r, in3_r, UNIT_QUANT_SHIFT);
26
27 in0_r += in2_r;
28 in3_r -= in1_r;
29 in4_r = (in0_r - in3_r) >> 1;
30 in1_r = in4_r - in1_r;
31 in2_r = in4_r - in2_r;
32 in0_r -= in1_r;
33 in3_r += in2_r;
34
35 TRANSPOSE4x4_SW_SW(in0_r, in1_r, in2_r, in3_r, in0_r, in1_r, in2_r, in3_r);
36
37 in0_r += in1_r;
38 in2_r -= in3_r;
39 in4_r = (in0_r - in2_r) >> 1;
40 in3_r = in4_r - in3_r;
41 in1_r = in4_r - in1_r;
42 in0_r -= in3_r;
43 in2_r += in1_r;
44
45 PCKEV_H4_SH(in0_r, in0_r, in1_r, in1_r, in2_r, in2_r, in3_r, in3_r, in0, in1,
46 in2, in3);
47 ADDBLK_ST4x4_UB(in0, in3, in1, in2, dst, dst_stride);
48 }
49
vpx_iwht4x4_1_add_msa(const int16_t * input,uint8_t * dst,int32_t dst_stride)50 void vpx_iwht4x4_1_add_msa(const int16_t *input, uint8_t *dst,
51 int32_t dst_stride) {
52 int16_t a1, e1;
53 v8i16 in1, in0 = { 0 };
54
55 a1 = input[0] >> UNIT_QUANT_SHIFT;
56 e1 = a1 >> 1;
57 a1 -= e1;
58
59 in0 = __msa_insert_h(in0, 0, a1);
60 in0 = __msa_insert_h(in0, 1, e1);
61 in0 = __msa_insert_h(in0, 2, e1);
62 in0 = __msa_insert_h(in0, 3, e1);
63
64 in1 = in0 >> 1;
65 in0 -= in1;
66
67 ADDBLK_ST4x4_UB(in0, in1, in1, in1, dst, dst_stride);
68 }
69
vpx_idct4x4_16_add_msa(const int16_t * input,uint8_t * dst,int32_t dst_stride)70 void vpx_idct4x4_16_add_msa(const int16_t *input, uint8_t *dst,
71 int32_t dst_stride) {
72 v8i16 in0, in1, in2, in3;
73
74 /* load vector elements of 4x4 block */
75 LD4x4_SH(input, in0, in1, in2, in3);
76 /* rows */
77 TRANSPOSE4x4_SH_SH(in0, in1, in2, in3, in0, in1, in2, in3);
78 VP9_IDCT4x4(in0, in1, in2, in3, in0, in1, in2, in3);
79 /* columns */
80 TRANSPOSE4x4_SH_SH(in0, in1, in2, in3, in0, in1, in2, in3);
81 VP9_IDCT4x4(in0, in1, in2, in3, in0, in1, in2, in3);
82 /* rounding (add 2^3, divide by 2^4) */
83 SRARI_H4_SH(in0, in1, in2, in3, 4);
84 ADDBLK_ST4x4_UB(in0, in1, in2, in3, dst, dst_stride);
85 }
86
vpx_idct4x4_1_add_msa(const int16_t * input,uint8_t * dst,int32_t dst_stride)87 void vpx_idct4x4_1_add_msa(const int16_t *input, uint8_t *dst,
88 int32_t dst_stride) {
89 int16_t out;
90 v8i16 vec;
91
92 out = ROUND_POWER_OF_TWO((input[0] * cospi_16_64), DCT_CONST_BITS);
93 out = ROUND_POWER_OF_TWO((out * cospi_16_64), DCT_CONST_BITS);
94 out = ROUND_POWER_OF_TWO(out, 4);
95 vec = __msa_fill_h(out);
96
97 ADDBLK_ST4x4_UB(vec, vec, vec, vec, dst, dst_stride);
98 }
99