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| author | Michael Sevakis <jethead71@rockbox.org> | 2013-05-18 01:45:03 -0400 |
|---|---|---|
| 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_coldfire.h | |
| parent | a17d6de5bc727b0bb55764ecef2605ae689e8dab (diff) | |
| download | rockbox-87021f7c0ac4620eafd185ff11905ee643f72b6c.zip rockbox-87021f7c0ac4620eafd185ff11905ee643f72b6c.tar.gz rockbox-87021f7c0ac4620eafd185ff11905ee643f72b6c.tar.bz2 rockbox-87021f7c0ac4620eafd185ff11905ee643f72b6c.tar.xz | |
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_coldfire.h')
| -rw-r--r-- | lib/rbcodec/codecs/libspc/cpu/spc_dsp_coldfire.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/lib/rbcodec/codecs/libspc/cpu/spc_dsp_coldfire.h b/lib/rbcodec/codecs/libspc/cpu/spc_dsp_coldfire.h new file mode 100644 index 0000000..f9aafab --- /dev/null +++ b/lib/rbcodec/codecs/libspc/cpu/spc_dsp_coldfire.h @@ -0,0 +1,45 @@ +/*************************************************************************** + * __________ __ ___. + * Open \______ \ ____ ____ | | _\_ |__ _______ ___ + * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / + * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < + * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ + * \/ \/ \/ \/ \/ + * $Id$ + * + * Copyright (C) 2007 Michael Sevakis (jhMikeS) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + ****************************************************************************/ +#if !SPC_NOECHO + +#define SPC_DSP_ECHO_APPLY + +enum +{ + FIR_BUF_CNT = FIR_BUF_HALF, + FIR_BUF_SIZE = FIR_BUF_CNT * sizeof ( int32_t ), + FIR_BUF_ALIGN = FIR_BUF_SIZE * 2, + FIR_BUF_MASK = ~((FIR_BUF_ALIGN / 2) | (sizeof ( int32_t ) - 1)) +}; + +/* Echo filter structure embedded in struct Spc_Dsp */ +struct echo_filter +{ + /* FIR history is interleaved. Hardware handles wrapping by mask. + * |LR|LR|LR|LR|LR|LR|LR|LR| */ + int32_t* ptr; + /* wrapped address just behind current position - + allows mac.w to increment and mask ptr */ + int32_t* hist_ptr; + /* copy of echo FIR constants as int16_t for use with mac.w */ + int16_t coeff [VOICE_COUNT]; +}; +#endif /* !SPC_NOECHO */ |