1 /*
2 * Copyright (c) 2016, Alliance for Open Media. All rights reserved
3 *
4 * This source code is subject to the terms of the BSD 2 Clause License and
5 * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
6 * was not distributed with this source code in the LICENSE file, you can
7 * obtain it at www.aomedia.org/license/software. If the Alliance for Open
8 * Media Patent License 1.0 was not distributed with this source code in the
9 * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
10 */
11
12 #include "aom_dsp/mips/common_dspr2.h"
13
14 #if HAVE_DSPR2
aom_h_predictor_4x4_dspr2(uint8_t * dst,ptrdiff_t stride,const uint8_t * above,const uint8_t * left)15 void aom_h_predictor_4x4_dspr2(uint8_t *dst, ptrdiff_t stride,
16 const uint8_t *above, const uint8_t *left) {
17 int32_t tmp1, tmp2, tmp3, tmp4;
18 (void)above;
19
20 __asm__ __volatile__(
21 "lb %[tmp1], (%[left]) \n\t"
22 "lb %[tmp2], 1(%[left]) \n\t"
23 "lb %[tmp3], 2(%[left]) \n\t"
24 "lb %[tmp4], 3(%[left]) \n\t"
25 "replv.qb %[tmp1], %[tmp1] \n\t"
26 "replv.qb %[tmp2], %[tmp2] \n\t"
27 "replv.qb %[tmp3], %[tmp3] \n\t"
28 "replv.qb %[tmp4], %[tmp4] \n\t"
29 "sw %[tmp1], (%[dst]) \n\t"
30 "add %[dst], %[dst], %[stride] \n\t"
31 "sw %[tmp2], (%[dst]) \n\t"
32 "add %[dst], %[dst], %[stride] \n\t"
33 "sw %[tmp3], (%[dst]) \n\t"
34 "add %[dst], %[dst], %[stride] \n\t"
35 "sw %[tmp4], (%[dst]) \n\t"
36
37 : [tmp1] "=&r"(tmp1), [tmp2] "=&r"(tmp2), [tmp3] "=&r"(tmp3),
38 [tmp4] "=&r"(tmp4)
39 : [left] "r"(left), [dst] "r"(dst), [stride] "r"(stride));
40 }
41
aom_dc_predictor_4x4_dspr2(uint8_t * dst,ptrdiff_t stride,const uint8_t * above,const uint8_t * left)42 void aom_dc_predictor_4x4_dspr2(uint8_t *dst, ptrdiff_t stride,
43 const uint8_t *above, const uint8_t *left) {
44 int32_t expected_dc;
45 int32_t average;
46 int32_t tmp, above_c, above_l, above_r, left_c, left_r, left_l;
47
48 __asm__ __volatile__(
49 "lw %[above_c], (%[above]) \n\t"
50 "lw %[left_c], (%[left]) \n\t"
51
52 "preceu.ph.qbl %[above_l], %[above_c] \n\t"
53 "preceu.ph.qbr %[above_r], %[above_c] \n\t"
54 "preceu.ph.qbl %[left_l], %[left_c] \n\t"
55 "preceu.ph.qbr %[left_r], %[left_c] \n\t"
56
57 "addu.ph %[average], %[above_r], %[above_l] \n\t"
58 "addu.ph %[average], %[average], %[left_l] \n\t"
59 "addu.ph %[average], %[average], %[left_r] \n\t"
60 "addiu %[average], %[average], 4 \n\t"
61 "srl %[tmp], %[average], 16 \n\t"
62 "addu.ph %[average], %[tmp], %[average] \n\t"
63 "srl %[expected_dc], %[average], 3 \n\t"
64 "replv.qb %[expected_dc], %[expected_dc] \n\t"
65
66 "sw %[expected_dc], (%[dst]) \n\t"
67 "add %[dst], %[dst], %[stride] \n\t"
68 "sw %[expected_dc], (%[dst]) \n\t"
69 "add %[dst], %[dst], %[stride] \n\t"
70 "sw %[expected_dc], (%[dst]) \n\t"
71 "add %[dst], %[dst], %[stride] \n\t"
72 "sw %[expected_dc], (%[dst]) \n\t"
73
74 : [above_c] "=&r"(above_c), [above_l] "=&r"(above_l),
75 [above_r] "=&r"(above_r), [left_c] "=&r"(left_c),
76 [left_l] "=&r"(left_l), [left_r] "=&r"(left_r),
77 [average] "=&r"(average), [tmp] "=&r"(tmp),
78 [expected_dc] "=&r"(expected_dc)
79 : [above] "r"(above), [left] "r"(left), [dst] "r"(dst),
80 [stride] "r"(stride));
81 }
82 #endif // #if HAVE_DSPR2
83