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author | Michael Sevakis <jethead71@rockbox.org> | 2013-05-18 01:45:03 -0400 |
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committer | Michael Sevakis <jethead71@rockbox.org> | 2013-05-21 00:02:14 -0400 |
commit | 87021f7c0ac4620eafd185ff11905ee643f72b6c (patch) | |
tree | 03ae48f3d999cd8743af40cc5df933f64f6df2d2 /lib/rbcodec/codecs/libspc/cpu/spc_dsp_armv4.h | |
parent | a17d6de5bc727b0bb55764ecef2605ae689e8dab (diff) | |
download | rockbox-87021f7c0ac4620eafd185ff11905ee643f72b6c.tar.gz rockbox-87021f7c0ac4620eafd185ff11905ee643f72b6c.zip |
SPC Codec: Refactor for CPU and clean up some things.
CPU optimization gets its own files in which to fill-in optimizable
routines.
Some pointless #if 0's for profiling need removal. Those macros are
empty if not profiling.
Force some functions that are undesirable to be force-inlined by the
compiler to be not inlined.
Change-Id: Ia7b7e45380d7efb20c9b1a4d52e05db3ef6bbaab
Diffstat (limited to 'lib/rbcodec/codecs/libspc/cpu/spc_dsp_armv4.h')
-rw-r--r-- | lib/rbcodec/codecs/libspc/cpu/spc_dsp_armv4.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/lib/rbcodec/codecs/libspc/cpu/spc_dsp_armv4.h b/lib/rbcodec/codecs/libspc/cpu/spc_dsp_armv4.h new file mode 100644 index 0000000000..c9985e124a --- /dev/null +++ b/lib/rbcodec/codecs/libspc/cpu/spc_dsp_armv4.h | |||
@@ -0,0 +1,45 @@ | |||
1 | /*************************************************************************** | ||
2 | * __________ __ ___. | ||
3 | * Open \______ \ ____ ____ | | _\_ |__ _______ ___ | ||
4 | * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / | ||
5 | * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < | ||
6 | * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ | ||
7 | * \/ \/ \/ \/ \/ | ||
8 | * $Id$ | ||
9 | * | ||
10 | * Copyright (C) 2007-2010 Michael Sevakis (jhMikeS) | ||
11 | * | ||
12 | * This program is free software; you can redistribute it and/or | ||
13 | * modify it under the terms of the GNU General Public License | ||
14 | * as published by the Free Software Foundation; either version 2 | ||
15 | * of the License, or (at your option) any later version. | ||
16 | * | ||
17 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY | ||
18 | * KIND, either express or implied. | ||
19 | * | ||
20 | ****************************************************************************/ | ||
21 | #if !SPC_NOECHO | ||
22 | |||
23 | #define SPC_DSP_ECHO_APPLY | ||
24 | |||
25 | enum | ||
26 | { | ||
27 | FIR_BUF_CNT = FIR_BUF_HALF * 2 * 2, | ||
28 | FIR_BUF_SIZE = FIR_BUF_CNT * sizeof ( int32_t ), | ||
29 | FIR_BUF_ALIGN = FIR_BUF_SIZE, | ||
30 | FIR_BUF_MASK = ~((FIR_BUF_ALIGN / 2) | (sizeof ( int32_t ) * 2 - 1)) | ||
31 | }; | ||
32 | |||
33 | /* Echo filter structure embedded in struct Spc_Dsp */ | ||
34 | struct echo_filter | ||
35 | { | ||
36 | /* fir_buf [i + 8] == fir_buf [i], to avoid wrap checking in FIR code */ | ||
37 | int32_t* ptr; | ||
38 | /* FIR history is interleaved with guard to eliminate wrap checking | ||
39 | * when convolving. | ||
40 | * |LL|RR|LL|RR|LL|RR|LL|RR|LL|RR|LL|RR|LL|RR|LL|RR|... | ||
41 | * |--|--|--|--|--|--|--|--|--|--|--|--|--|--|--|--| */ | ||
42 | /* copy of echo FIR constants as int32_t, for faster access */ | ||
43 | int32_t coeff [VOICE_COUNT]; | ||
44 | }; | ||
45 | #endif /* SPC_NOECHO */ | ||