1 /*
2 * Loongson SIMD optimized pixblockdsp
3 *
4 * Copyright (c) 2015 Loongson Technology Corporation Limited
5 * Copyright (c) 2015 Zhou Xiaoyong <zhouxiaoyong@loongson.cn>
6 *
7 * This file is part of FFmpeg.
8 *
9 * FFmpeg is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
13 *
14 * FFmpeg is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with FFmpeg; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 */
23
24 #include "pixblockdsp_mips.h"
25 #include "libavutil/mips/asmdefs.h"
26 #include "libavutil/mips/mmiutils.h"
27
ff_get_pixels_8_mmi(int16_t * av_restrict block,const uint8_t * pixels,ptrdiff_t stride)28 void ff_get_pixels_8_mmi(int16_t *av_restrict block, const uint8_t *pixels,
29 ptrdiff_t stride)
30 {
31 double ftmp[7];
32 DECLARE_VAR_ALL64;
33 DECLARE_VAR_ADDRT;
34
35 __asm__ volatile (
36 "xor %[ftmp0], %[ftmp0], %[ftmp0] \n\t"
37
38 MMI_LDC1(%[ftmp1], %[pixels], 0x00)
39 MMI_LDXC1(%[ftmp2], %[pixels], %[stride], 0x00)
40 "punpcklbh %[ftmp3], %[ftmp1], %[ftmp0] \n\t"
41 "punpckhbh %[ftmp4], %[ftmp1], %[ftmp0] \n\t"
42 "punpcklbh %[ftmp5], %[ftmp2], %[ftmp0] \n\t"
43 "punpckhbh %[ftmp6], %[ftmp2], %[ftmp0] \n\t"
44 MMI_SDC1(%[ftmp3], %[block], 0x00)
45 MMI_SDC1(%[ftmp4], %[block], 0x08)
46 MMI_SDC1(%[ftmp5], %[block], 0x10)
47 MMI_SDC1(%[ftmp6], %[block], 0x18)
48 PTR_ADDU "%[pixels], %[pixels], %[stride_x2] \n\t"
49
50 MMI_LDC1(%[ftmp1], %[pixels], 0x00)
51 MMI_LDXC1(%[ftmp2], %[pixels], %[stride], 0x00)
52 "punpcklbh %[ftmp3], %[ftmp1], %[ftmp0] \n\t"
53 "punpckhbh %[ftmp4], %[ftmp1], %[ftmp0] \n\t"
54 "punpcklbh %[ftmp5], %[ftmp2], %[ftmp0] \n\t"
55 "punpckhbh %[ftmp6], %[ftmp2], %[ftmp0] \n\t"
56 MMI_SDC1(%[ftmp3], %[block], 0x20)
57 MMI_SDC1(%[ftmp4], %[block], 0x28)
58 MMI_SDC1(%[ftmp5], %[block], 0x30)
59 MMI_SDC1(%[ftmp6], %[block], 0x38)
60 PTR_ADDU "%[pixels], %[pixels], %[stride_x2] \n\t"
61
62 MMI_LDC1(%[ftmp1], %[pixels], 0x00)
63 MMI_LDXC1(%[ftmp2], %[pixels], %[stride], 0x00)
64 "punpcklbh %[ftmp3], %[ftmp1], %[ftmp0] \n\t"
65 "punpckhbh %[ftmp4], %[ftmp1], %[ftmp0] \n\t"
66 "punpcklbh %[ftmp5], %[ftmp2], %[ftmp0] \n\t"
67 "punpckhbh %[ftmp6], %[ftmp2], %[ftmp0] \n\t"
68 MMI_SDC1(%[ftmp3], %[block], 0x40)
69 MMI_SDC1(%[ftmp4], %[block], 0x48)
70 MMI_SDC1(%[ftmp5], %[block], 0x50)
71 MMI_SDC1(%[ftmp6], %[block], 0x58)
72 PTR_ADDU "%[pixels], %[pixels], %[stride_x2] \n\t"
73
74 MMI_LDC1(%[ftmp1], %[pixels], 0x00)
75 MMI_LDXC1(%[ftmp2], %[pixels], %[stride], 0x00)
76 "punpcklbh %[ftmp3], %[ftmp1], %[ftmp0] \n\t"
77 "punpckhbh %[ftmp4], %[ftmp1], %[ftmp0] \n\t"
78 "punpcklbh %[ftmp5], %[ftmp2], %[ftmp0] \n\t"
79 "punpckhbh %[ftmp6], %[ftmp2], %[ftmp0] \n\t"
80 MMI_SDC1(%[ftmp3], %[block], 0x60)
81 MMI_SDC1(%[ftmp4], %[block], 0x68)
82 MMI_SDC1(%[ftmp5], %[block], 0x70)
83 MMI_SDC1(%[ftmp6], %[block], 0x78)
84 : [ftmp0]"=&f"(ftmp[0]), [ftmp1]"=&f"(ftmp[1]),
85 [ftmp2]"=&f"(ftmp[2]), [ftmp3]"=&f"(ftmp[3]),
86 [ftmp4]"=&f"(ftmp[4]), [ftmp5]"=&f"(ftmp[5]),
87 [ftmp6]"=&f"(ftmp[6]),
88 RESTRICT_ASM_ALL64
89 RESTRICT_ASM_ADDRT
90 [pixels]"+&r"(pixels)
91 : [block]"r"((mips_reg)block), [stride]"r"((mips_reg)stride),
92 [stride_x2]"r"((mips_reg)(stride<<1))
93 : "memory"
94 );
95 }
96
ff_diff_pixels_mmi(int16_t * av_restrict block,const uint8_t * src1,const uint8_t * src2,ptrdiff_t stride)97 void ff_diff_pixels_mmi(int16_t *av_restrict block, const uint8_t *src1,
98 const uint8_t *src2, ptrdiff_t stride)
99 {
100 double ftmp[5];
101 mips_reg tmp[1];
102 DECLARE_VAR_ALL64;
103
104 __asm__ volatile (
105 "li %[tmp0], 0x08 \n\t"
106 "xor %[ftmp4], %[ftmp4], %[ftmp4] \n\t"
107 "1: \n\t"
108 MMI_LDC1(%[ftmp0], %[src1], 0x00)
109 "or %[ftmp1], %[ftmp0], %[ftmp0] \n\t"
110 MMI_LDC1(%[ftmp2], %[src2], 0x00)
111 "or %[ftmp3], %[ftmp2], %[ftmp2] \n\t"
112 "punpcklbh %[ftmp0], %[ftmp0], %[ftmp4] \n\t"
113 "punpckhbh %[ftmp1], %[ftmp1], %[ftmp4] \n\t"
114 "punpcklbh %[ftmp2], %[ftmp2], %[ftmp4] \n\t"
115 "punpckhbh %[ftmp3], %[ftmp3], %[ftmp4] \n\t"
116 "psubh %[ftmp0], %[ftmp0], %[ftmp2] \n\t"
117 "psubh %[ftmp1], %[ftmp1], %[ftmp3] \n\t"
118 MMI_SDC1(%[ftmp0], %[block], 0x00)
119 MMI_SDC1(%[ftmp1], %[block], 0x08)
120 PTR_ADDI "%[tmp0], %[tmp0], -0x01 \n\t"
121 PTR_ADDIU "%[block], %[block], 0x10 \n\t"
122 PTR_ADDU "%[src1], %[src1], %[stride] \n\t"
123 PTR_ADDU "%[src2], %[src2], %[stride] \n\t"
124 "bgtz %[tmp0], 1b \n\t"
125 : [ftmp0]"=&f"(ftmp[0]), [ftmp1]"=&f"(ftmp[1]),
126 [ftmp2]"=&f"(ftmp[2]), [ftmp3]"=&f"(ftmp[3]),
127 [ftmp4]"=&f"(ftmp[4]),
128 [tmp0]"=&r"(tmp[0]),
129 RESTRICT_ASM_ALL64
130 [block]"+&r"(block), [src1]"+&r"(src1),
131 [src2]"+&r"(src2)
132 : [stride]"r"((mips_reg)stride)
133 : "memory"
134 );
135 }
136