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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/cb_search_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/cb_search_arm4.h')
-rw-r--r-- | lib/rbcodec/codecs/libspeex/cb_search_arm4.h | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/lib/rbcodec/codecs/libspeex/cb_search_arm4.h b/lib/rbcodec/codecs/libspeex/cb_search_arm4.h new file mode 100644 index 0000000000..19b752a4bc --- /dev/null +++ b/lib/rbcodec/codecs/libspeex/cb_search_arm4.h | |||
@@ -0,0 +1,137 @@ | |||
1 | /* Copyright (C) 2004 Jean-Marc Valin */ | ||
2 | /** | ||
3 | @file cb_search_arm4.h | ||
4 | @brief Fixed codebook functions (ARM4 version) | ||
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 | /* This optimization is temporaly disabled until it is fixed to account for the fact | ||
36 | that "r" is now a 16-bit array */ | ||
37 | #if 0 | ||
38 | #define OVERRIDE_COMPUTE_WEIGHTED_CODEBOOK | ||
39 | static void compute_weighted_codebook(const signed char *shape_cb, const spx_word16_t *r, spx_word16_t *resp, spx_word16_t *resp2, spx_word32_t *E, int shape_cb_size, int subvect_size, char *stack) | ||
40 | { | ||
41 | int i, j, k; | ||
42 | //const signed char *shape; | ||
43 | for (i=0;i<shape_cb_size;i+=4) | ||
44 | { | ||
45 | |||
46 | //shape = shape_cb; | ||
47 | E[0]=0; | ||
48 | E[1]=0; | ||
49 | E[2]=0; | ||
50 | E[3]=0; | ||
51 | |||
52 | /* Compute codeword response using convolution with impulse response */ | ||
53 | for(j=0;j<subvect_size;j++) | ||
54 | { | ||
55 | #if 1 | ||
56 | spx_word16_t *res; | ||
57 | res = resp+j; | ||
58 | spx_word32_t resj0,resj1,resj2,resj3; | ||
59 | spx_word32_t dead1, dead2, dead3, dead4, dead5, dead6, dead7, dead8; | ||
60 | __asm__ __volatile__ ( | ||
61 | "mov %0, #0 \n\t" | ||
62 | "mov %1, #0 \n\t" | ||
63 | "mov %2, #0 \n\t" | ||
64 | "mov %3, #0 \n\t" | ||
65 | ".weighted%=: \n\t" | ||
66 | "ldrsb %8, [%6] \n\t" | ||
67 | "ldr %10, [%5], #-4 \n\t" | ||
68 | "mov %9, %6 \n\t" | ||
69 | "ldrsb %11, [%9, %7]! \n\t" | ||
70 | "mla %0, %10, %8, %0 \n\t" | ||
71 | "ldrsb %8, [%9, %7]! \n\t" | ||
72 | "mla %1, %10, %11, %1 \n\t" | ||
73 | "ldrsb %11, [%9, %7]! \n\t" | ||
74 | "mla %2, %10, %8, %2 \n\t" | ||
75 | "subs %4, %4, #1 \n\t" | ||
76 | "mla %3, %10, %11, %3 \n\t" | ||
77 | "add %6, %6, #1 \n\t" | ||
78 | "bne .weighted%= \n\t" | ||
79 | : "=r" (resj0), "=r" (resj1), "=r" (resj2), "=r" (resj3), | ||
80 | "=r" (dead1), "=r" (dead2), "=r" (dead3), "=r" (dead4), | ||
81 | "=r" (dead5), "=r" (dead6), "=r" (dead7), "=r" (dead8) | ||
82 | : "4" (j+1), "5" (r+j), "6" (shape_cb), "7" (subvect_size) | ||
83 | : "cc", "memory"); | ||
84 | #else | ||
85 | spx_word16_t *res; | ||
86 | res = resp+j; | ||
87 | spx_word32_t resj0=0; | ||
88 | spx_word32_t resj1=0; | ||
89 | spx_word32_t resj2=0; | ||
90 | spx_word32_t resj3=0; | ||
91 | for (k=0;k<=j;k++) | ||
92 | { | ||
93 | const signed char *shape=shape_cb+k; | ||
94 | resj0 = MAC16_16(resj0,*shape,r[j-k]); | ||
95 | shape += subvect_size; | ||
96 | resj1 = MAC16_16(resj1,*shape,r[j-k]); | ||
97 | shape += subvect_size; | ||
98 | resj2 = MAC16_16(resj2,*shape,r[j-k]); | ||
99 | shape += subvect_size; | ||
100 | resj3 = MAC16_16(resj3,*shape,r[j-k]); | ||
101 | shape += subvect_size; | ||
102 | } | ||
103 | #endif | ||
104 | |||
105 | #ifdef FIXED_POINT | ||
106 | resj0 = SHR(resj0, 11); | ||
107 | resj1 = SHR(resj1, 11); | ||
108 | resj2 = SHR(resj2, 11); | ||
109 | resj3 = SHR(resj3, 11); | ||
110 | #else | ||
111 | resj0 *= 0.03125; | ||
112 | resj1 *= 0.03125; | ||
113 | resj2 *= 0.03125; | ||
114 | resj3 *= 0.03125; | ||
115 | #endif | ||
116 | |||
117 | /* Compute codeword energy */ | ||
118 | E[0]=ADD32(E[0],MULT16_16(resj0,resj0)); | ||
119 | E[1]=ADD32(E[1],MULT16_16(resj1,resj1)); | ||
120 | E[2]=ADD32(E[2],MULT16_16(resj2,resj2)); | ||
121 | E[3]=ADD32(E[3],MULT16_16(resj3,resj3)); | ||
122 | *res = resj0; | ||
123 | res += subvect_size; | ||
124 | *res = resj1; | ||
125 | res += subvect_size; | ||
126 | *res = resj2; | ||
127 | res += subvect_size; | ||
128 | *res = resj3; | ||
129 | res += subvect_size; | ||
130 | } | ||
131 | resp += subvect_size<<2; | ||
132 | shape_cb += subvect_size<<2; | ||
133 | E+=4; | ||
134 | } | ||
135 | |||
136 | } | ||
137 | #endif | ||