diff options
author | Sean Bartell <wingedtachikoma@gmail.com> | 2011-06-25 21:32:25 -0400 |
---|---|---|
committer | Nils Wallménius <nils@rockbox.org> | 2012-04-25 22:13:20 +0200 |
commit | f40bfc9267b13b54e6379dfe7539447662879d24 (patch) | |
tree | 9b20069d5e62809ff434061ad730096836f916f2 /lib/rbcodec/codecs/libspeex/cb_search_bfin.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_bfin.h')
-rw-r--r-- | lib/rbcodec/codecs/libspeex/cb_search_bfin.h | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/lib/rbcodec/codecs/libspeex/cb_search_bfin.h b/lib/rbcodec/codecs/libspeex/cb_search_bfin.h new file mode 100644 index 0000000000..ae9cf8343d --- /dev/null +++ b/lib/rbcodec/codecs/libspeex/cb_search_bfin.h | |||
@@ -0,0 +1,112 @@ | |||
1 | /* Copyright (C) 2005 Analog Devices */ | ||
2 | /** | ||
3 | @author Jean-Marc Valin | ||
4 | @file cb_search_bfin.h | ||
5 | @brief Fixed codebook functions (Blackfin version) | ||
6 | */ | ||
7 | /* | ||
8 | Redistribution and use in source and binary forms, with or without | ||
9 | modification, are permitted provided that the following conditions | ||
10 | are met: | ||
11 | |||
12 | - Redistributions of source code must retain the above copyright | ||
13 | notice, this list of conditions and the following disclaimer. | ||
14 | |||
15 | - Redistributions in binary form must reproduce the above copyright | ||
16 | notice, this list of conditions and the following disclaimer in the | ||
17 | documentation and/or other materials provided with the distribution. | ||
18 | |||
19 | - Neither the name of the Xiph.org Foundation nor the names of its | ||
20 | contributors may be used to endorse or promote products derived from | ||
21 | this software without specific prior written permission. | ||
22 | |||
23 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
24 | ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
25 | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | ||
26 | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR | ||
27 | CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | ||
28 | EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | ||
29 | PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | ||
30 | PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | ||
31 | LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | ||
32 | NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | ||
33 | SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
34 | */ | ||
35 | |||
36 | #define OVERRIDE_COMPUTE_WEIGHTED_CODEBOOK | ||
37 | 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) | ||
38 | { | ||
39 | int i; | ||
40 | for (i=0;i<shape_cb_size;i++) | ||
41 | { | ||
42 | __asm__ __volatile__ ( | ||
43 | "P0 = %0;\n\t" | ||
44 | "LC0 = P0;\n\t" | ||
45 | "P1 = %1;\n\t" | ||
46 | "P2 = %2;\n\t" | ||
47 | "P3 = %3;\n\t" | ||
48 | "P0 = 1;\n\t" | ||
49 | "L0 = 0;\n\t" | ||
50 | "L1 = 0;\n\t" | ||
51 | "R2 = 0;\n\t" | ||
52 | "A1 = 0;\n\t" | ||
53 | "LOOP outter%= LC0;\n\t" | ||
54 | "LOOP_BEGIN outter%=;\n\t" | ||
55 | "A0 = 0;\n\t" | ||
56 | "P4 = P1;\n\t" | ||
57 | "I1 = P2;\n\t" | ||
58 | "R0 = B[P4++] (X) || R1.L = W[I1--];\n\t" | ||
59 | "LOOP inner%= LC1 = P0;\n\t" | ||
60 | "LOOP_BEGIN inner%=;\n\t" | ||
61 | "A0 += R0.L*R1.L (IS) || R0 = B[P4++] (X) || R1.L = W[I1--];\n\t" | ||
62 | "LOOP_END inner%=;\n\t" | ||
63 | "R0 = A0;\n\t" | ||
64 | "R0 >>>= 13;\n\t" | ||
65 | "A1 += R0.L*R0.L (IS);\n\t" | ||
66 | "W[P3++] = R0;\n\t" | ||
67 | "P0 += 1;\n\t" | ||
68 | "P2 += 2;\n\t" | ||
69 | "LOOP_END outter%=;\n\t" | ||
70 | "P4 = %4;\n\t" | ||
71 | "R1 = A1;\n\t" | ||
72 | "[P4] = R1;\n\t" | ||
73 | : | ||
74 | : "m" (subvect_size), "m" (shape_cb), "m" (r), "m" (resp), "m" (E) | ||
75 | : "A0", "P0", "P1", "P2", "P3", "P4", "R0", "R1", "R2", "I0", "I1", "L0", | ||
76 | "L1", "A0", "A1", "memory" | ||
77 | #if !(__GNUC__ == 3) | ||
78 | , "LC0", "LC1" /* gcc 3.4 doesn't know about LC registers */ | ||
79 | #endif | ||
80 | ); | ||
81 | shape_cb += subvect_size; | ||
82 | resp += subvect_size; | ||
83 | E++; | ||
84 | } | ||
85 | } | ||
86 | |||
87 | #define OVERRIDE_TARGET_UPDATE | ||
88 | static inline void target_update(spx_word16_t *t, spx_word16_t g, spx_word16_t *r, int len) | ||
89 | { | ||
90 | if (!len) | ||
91 | return; | ||
92 | __asm__ __volatile__ | ||
93 | ( | ||
94 | "I0 = %0;\n\t" | ||
95 | "I1 = %1;\n\t" | ||
96 | "L0 = 0;\n\t" | ||
97 | "L1 = 0;\n\t" | ||
98 | "R2 = 4096;\n\t" | ||
99 | "LOOP tupdate%= LC0 = %3;\n\t" | ||
100 | "LOOP_BEGIN tupdate%=;\n\t" | ||
101 | "R0.L = W[I0] || R1.L = W[I1++];\n\t" | ||
102 | "R1 = (A1 = R1.L*%2.L) (IS);\n\t" | ||
103 | "R1 = R1 + R2;\n\t" | ||
104 | "R1 >>>= 13;\n\t" | ||
105 | "R0.L = R0.L - R1.L;\n\t" | ||
106 | "W[I0++] = R0.L;\n\t" | ||
107 | "LOOP_END tupdate%=;\n\t" | ||
108 | : | ||
109 | : "a" (t), "a" (r), "d" (g), "a" (len) | ||
110 | : "R0", "R1", "R2", "A1", "I0", "I1", "L0", "L1" | ||
111 | ); | ||
112 | } | ||