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author | Sean Bartell <wingedtachikoma@gmail.com> | 2011-06-25 21:32:25 -0400 |
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committer | Nils Wallménius <nils@rockbox.org> | 2012-04-25 22:13:20 +0200 |
commit | f40bfc9267b13b54e6379dfe7539447662879d24 (patch) | |
tree | 9b20069d5e62809ff434061ad730096836f916f2 /lib/rbcodec/codecs/libspeex/fixed_arm4.h | |
parent | a0009907de7a0107d49040d8a180f140e2eff299 (diff) | |
download | rockbox-f40bfc9267b13b54e6379dfe7539447662879d24.tar.gz rockbox-f40bfc9267b13b54e6379dfe7539447662879d24.zip |
Add codecs to librbcodec.
Change-Id: Id7f4717d51ed02d67cb9f9cb3c0ada4a81843f97
Reviewed-on: http://gerrit.rockbox.org/137
Reviewed-by: Nils Wallménius <nils@rockbox.org>
Tested-by: Nils Wallménius <nils@rockbox.org>
Diffstat (limited to 'lib/rbcodec/codecs/libspeex/fixed_arm4.h')
-rw-r--r-- | lib/rbcodec/codecs/libspeex/fixed_arm4.h | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/lib/rbcodec/codecs/libspeex/fixed_arm4.h b/lib/rbcodec/codecs/libspeex/fixed_arm4.h new file mode 100644 index 0000000000..b6981cae72 --- /dev/null +++ b/lib/rbcodec/codecs/libspeex/fixed_arm4.h | |||
@@ -0,0 +1,148 @@ | |||
1 | /* Copyright (C) 2004 Jean-Marc Valin */ | ||
2 | /** | ||
3 | @file fixed_arm4.h | ||
4 | @brief ARM4 fixed-point operations | ||
5 | */ | ||
6 | /* | ||
7 | Redistribution and use in source and binary forms, with or without | ||
8 | modification, are permitted provided that the following conditions | ||
9 | are met: | ||
10 | |||
11 | - Redistributions of source code must retain the above copyright | ||
12 | notice, this list of conditions and the following disclaimer. | ||
13 | |||
14 | - Redistributions in binary form must reproduce the above copyright | ||
15 | notice, this list of conditions and the following disclaimer in the | ||
16 | documentation and/or other materials provided with the distribution. | ||
17 | |||
18 | - Neither the name of the Xiph.org Foundation nor the names of its | ||
19 | contributors may be used to endorse or promote products derived from | ||
20 | this software without specific prior written permission. | ||
21 | |||
22 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
23 | ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
24 | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | ||
25 | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR | ||
26 | CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | ||
27 | EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | ||
28 | PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | ||
29 | PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | ||
30 | LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | ||
31 | NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | ||
32 | SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
33 | */ | ||
34 | |||
35 | #ifndef FIXED_ARM4_H | ||
36 | #define FIXED_ARM4_H | ||
37 | |||
38 | #undef MULT16_32_Q14 | ||
39 | static inline spx_word32_t MULT16_32_Q14(spx_word16_t x, spx_word32_t y) { | ||
40 | int res; | ||
41 | int dummy; | ||
42 | asm ( | ||
43 | "smull %0,%1,%2,%3 \n\t" | ||
44 | "mov %0, %0, lsr #14 \n\t" | ||
45 | "add %0, %0, %1, lsl #18 \n\t" | ||
46 | : "=&r"(res), "=&r" (dummy) | ||
47 | : "r"(y),"r"((int)x)); | ||
48 | return(res); | ||
49 | } | ||
50 | |||
51 | #undef MULT16_32_Q15 | ||
52 | static inline spx_word32_t MULT16_32_Q15(spx_word16_t x, spx_word32_t y) { | ||
53 | int res; | ||
54 | int dummy; | ||
55 | asm ( | ||
56 | "smull %0,%1,%2,%3 \n\t" | ||
57 | "mov %0, %0, lsr #15 \n\t" | ||
58 | "add %0, %0, %1, lsl #17 \n\t" | ||
59 | : "=&r"(res), "=&r" (dummy) | ||
60 | : "r"(y),"r"((int)x)); | ||
61 | return(res); | ||
62 | } | ||
63 | |||
64 | #undef DIV32_16 | ||
65 | static inline short DIV32_16(int a, int b) | ||
66 | { | ||
67 | int res=0; | ||
68 | int dead1, dead2, dead3, dead4, dead5; | ||
69 | __asm__ __volatile__ ( | ||
70 | "\teor %5, %0, %1\n" | ||
71 | "\tmovs %4, %0\n" | ||
72 | "\trsbmi %0, %0, #0 \n" | ||
73 | "\tmovs %4, %1\n" | ||
74 | "\trsbmi %1, %1, #0 \n" | ||
75 | "\tmov %4, #1\n" | ||
76 | |||
77 | "\tsubs %3, %0, %1, asl #14 \n" | ||
78 | "\tmovpl %0, %3 \n" | ||
79 | "\torrpl %2, %2, %4, asl #14 \n" | ||
80 | |||
81 | "\tsubs %3, %0, %1, asl #13 \n" | ||
82 | "\tmovpl %0, %3 \n" | ||
83 | "\torrpl %2, %2, %4, asl #13 \n" | ||
84 | |||
85 | "\tsubs %3, %0, %1, asl #12 \n" | ||
86 | "\tmovpl %0, %3 \n" | ||
87 | "\torrpl %2, %2, %4, asl #12 \n" | ||
88 | |||
89 | "\tsubs %3, %0, %1, asl #11 \n" | ||
90 | "\tmovpl %0, %3 \n" | ||
91 | "\torrpl %2, %2, %4, asl #11 \n" | ||
92 | |||
93 | "\tsubs %3, %0, %1, asl #10 \n" | ||
94 | "\tmovpl %0, %3 \n" | ||
95 | "\torrpl %2, %2, %4, asl #10 \n" | ||
96 | |||
97 | "\tsubs %3, %0, %1, asl #9 \n" | ||
98 | "\tmovpl %0, %3 \n" | ||
99 | "\torrpl %2, %2, %4, asl #9 \n" | ||
100 | |||
101 | "\tsubs %3, %0, %1, asl #8 \n" | ||
102 | "\tmovpl %0, %3 \n" | ||
103 | "\torrpl %2, %2, %4, asl #8 \n" | ||
104 | |||
105 | "\tsubs %3, %0, %1, asl #7 \n" | ||
106 | "\tmovpl %0, %3 \n" | ||
107 | "\torrpl %2, %2, %4, asl #7 \n" | ||
108 | |||
109 | "\tsubs %3, %0, %1, asl #6 \n" | ||
110 | "\tmovpl %0, %3 \n" | ||
111 | "\torrpl %2, %2, %4, asl #6 \n" | ||
112 | |||
113 | "\tsubs %3, %0, %1, asl #5 \n" | ||
114 | "\tmovpl %0, %3 \n" | ||
115 | "\torrpl %2, %2, %4, asl #5 \n" | ||
116 | |||
117 | "\tsubs %3, %0, %1, asl #4 \n" | ||
118 | "\tmovpl %0, %3 \n" | ||
119 | "\torrpl %2, %2, %4, asl #4 \n" | ||
120 | |||
121 | "\tsubs %3, %0, %1, asl #3 \n" | ||
122 | "\tmovpl %0, %3 \n" | ||
123 | "\torrpl %2, %2, %4, asl #3 \n" | ||
124 | |||
125 | "\tsubs %3, %0, %1, asl #2 \n" | ||
126 | "\tmovpl %0, %3 \n" | ||
127 | "\torrpl %2, %2, %4, asl #2 \n" | ||
128 | |||
129 | "\tsubs %3, %0, %1, asl #1 \n" | ||
130 | "\tmovpl %0, %3 \n" | ||
131 | "\torrpl %2, %2, %4, asl #1 \n" | ||
132 | |||
133 | "\tsubs %3, %0, %1 \n" | ||
134 | "\tmovpl %0, %3 \n" | ||
135 | "\torrpl %2, %2, %4 \n" | ||
136 | |||
137 | "\tmovs %5, %5, lsr #31 \n" | ||
138 | "\trsbne %2, %2, #0 \n" | ||
139 | : "=r" (dead1), "=r" (dead2), "=r" (res), | ||
140 | "=r" (dead3), "=r" (dead4), "=r" (dead5) | ||
141 | : "0" (a), "1" (b), "2" (res) | ||
142 | : "cc" | ||
143 | ); | ||
144 | return res; | ||
145 | } | ||
146 | |||
147 | |||
148 | #endif | ||