rockbox/lib/rbcodec/codecs/libspc/spc_dsp_generic.h
Michael Sevakis 87021f7c0a 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
2013-05-21 00:02:14 -04:00

45 lines
1.6 KiB
C

/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2006-2007 Adam Gashlin (hcs)
* Copyright (C) 2004-2007 Shay Green (blargg)
* Copyright (C) 2002 Brad Martin
*
* 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
#ifndef SPC_DSP_ECHO_APPLY
enum
{
FIR_BUF_CNT = FIR_BUF_HALF * 2 * 2,
FIR_BUF_SIZE = FIR_BUF_CNT * sizeof ( int32_t ),
FIR_BUF_ALIGN = FIR_BUF_SIZE,
FIR_BUF_MASK = ~((FIR_BUF_ALIGN / 2) | (sizeof ( int32_t ) * 2 - 1))
};
/* Echo filter structure embedded in struct Spc_Dsp */
struct echo_filter
{
/* fir_buf [i + 8] == fir_buf [i], to avoid wrap checking in FIR code */
int pos; /* (0 to 7) */
int buf [FIR_BUF_HALF * 2] [2];
/* copy of echo FIR constants as int, for faster access */
int coeff [VOICE_COUNT];
};
#endif /* SPC_DSP_ECHO_APPLY */
#endif /* !SPC_NOECHO */