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Merge commit 'b9ea301e02472d0982b0fa0f80294bd95885bde8'
[ffmpeg] / libavcodec / mips / pixblockdsp_mmi.c
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
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
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 }