From f40bfc9267b13b54e6379dfe7539447662879d24 Mon Sep 17 00:00:00 2001 From: Sean Bartell Date: Sat, 25 Jun 2011 21:32:25 -0400 Subject: Add codecs to librbcodec. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Change-Id: Id7f4717d51ed02d67cb9f9cb3c0ada4a81843f97 Reviewed-on: http://gerrit.rockbox.org/137 Reviewed-by: Nils Wallménius Tested-by: Nils Wallménius --- lib/rbcodec/codecs/libwmavoice/mathops.h | 182 +++++++++++++++++++++++++++++++ 1 file changed, 182 insertions(+) create mode 100644 lib/rbcodec/codecs/libwmavoice/mathops.h (limited to 'lib/rbcodec/codecs/libwmavoice/mathops.h') diff --git a/lib/rbcodec/codecs/libwmavoice/mathops.h b/lib/rbcodec/codecs/libwmavoice/mathops.h new file mode 100644 index 0000000000..4d88ed14c9 --- /dev/null +++ b/lib/rbcodec/codecs/libwmavoice/mathops.h @@ -0,0 +1,182 @@ +/* + * simple math operations + * Copyright (c) 2001, 2002 Fabrice Bellard + * Copyright (c) 2006 Michael Niedermayer et al + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ +#ifndef AVCODEC_MATHOPS_H +#define AVCODEC_MATHOPS_H + +#include "libavutil/common.h" + +#if ARCH_ARM +# include "arm/mathops.h" +#elif ARCH_AVR32 +# include "avr32/mathops.h" +#elif ARCH_BFIN +# include "bfin/mathops.h" +#elif ARCH_MIPS +# include "mips/mathops.h" +#elif ARCH_PPC +# include "ppc/mathops.h" +#elif ARCH_X86 +# include "x86/mathops.h" +#endif + +/* generic implementation */ + +#ifndef MULL +# define MULL(a,b,s) (((int64_t)(a) * (int64_t)(b)) >> (s)) +#endif + +#ifndef MULH +//gcc 3.4 creates an incredibly bloated mess out of this +//# define MULH(a,b) (((int64_t)(a) * (int64_t)(b))>>32) + +static av_always_inline int MULH(int a, int b){ + return ((int64_t)(a) * (int64_t)(b))>>32; +} +#endif + +#ifndef UMULH +static av_always_inline unsigned UMULH(unsigned a, unsigned b){ + return ((uint64_t)(a) * (uint64_t)(b))>>32; +} +#endif + +#ifndef MUL64 +# define MUL64(a,b) ((int64_t)(a) * (int64_t)(b)) +#endif + +#ifndef MAC64 +# define MAC64(d, a, b) ((d) += MUL64(a, b)) +#endif + +#ifndef MLS64 +# define MLS64(d, a, b) ((d) -= MUL64(a, b)) +#endif + +/* signed 16x16 -> 32 multiply add accumulate */ +#ifndef MAC16 +# define MAC16(rt, ra, rb) rt += (ra) * (rb) +#endif + +/* signed 16x16 -> 32 multiply */ +#ifndef MUL16 +# define MUL16(ra, rb) ((ra) * (rb)) +#endif + +#ifndef MLS16 +# define MLS16(rt, ra, rb) ((rt) -= (ra) * (rb)) +#endif + +/* median of 3 */ +#ifndef mid_pred +#define mid_pred mid_pred +static inline av_const int mid_pred(int a, int b, int c) +{ +#if 0 + int t= (a-b)&((a-b)>>31); + a-=t; + b+=t; + b-= (b-c)&((b-c)>>31); + b+= (a-b)&((a-b)>>31); + + return b; +#else + if(a>b){ + if(c>b){ + if(c>a) b=a; + else b=c; + } + }else{ + if(b>c){ + if(c>a) b=c; + else b=a; + } + } + return b; +#endif +} +#endif + +#ifndef sign_extend +static inline av_const int sign_extend(int val, unsigned bits) +{ + return (val << ((8 * sizeof(int)) - bits)) >> ((8 * sizeof(int)) - bits); +} +#endif + +#ifndef zero_extend +static inline av_const unsigned zero_extend(unsigned val, unsigned bits) +{ + return (val << ((8 * sizeof(int)) - bits)) >> ((8 * sizeof(int)) - bits); +} +#endif + +#ifndef COPY3_IF_LT +#define COPY3_IF_LT(x, y, a, b, c, d)\ +if ((y) < (x)) {\ + (x) = (y);\ + (a) = (b);\ + (c) = (d);\ +} +#endif + +#ifndef NEG_SSR32 +# define NEG_SSR32(a,s) ((( int32_t)(a))>>(32-(s))) +#endif + +#ifndef NEG_USR32 +# define NEG_USR32(a,s) (((uint32_t)(a))>>(32-(s))) +#endif + +#if HAVE_BIGENDIAN +# ifndef PACK_2U8 +# define PACK_2U8(a,b) (((a) << 8) | (b)) +# endif +# ifndef PACK_4U8 +# define PACK_4U8(a,b,c,d) (((a) << 24) | ((b) << 16) | ((c) << 8) | (d)) +# endif +# ifndef PACK_2U16 +# define PACK_2U16(a,b) (((a) << 16) | (b)) +# endif +#else +# ifndef PACK_2U8 +# define PACK_2U8(a,b) (((b) << 8) | (a)) +# endif +# ifndef PACK_4U2 +# define PACK_4U8(a,b,c,d) (((d) << 24) | ((c) << 16) | ((b) << 8) | (a)) +# endif +# ifndef PACK_2U16 +# define PACK_2U16(a,b) (((b) << 16) | (a)) +# endif +#endif + +#ifndef PACK_2S8 +# define PACK_2S8(a,b) PACK_2U8((a)&255, (b)&255) +#endif +#ifndef PACK_4S8 +# define PACK_4S8(a,b,c,d) PACK_4U8((a)&255, (b)&255, (c)&255, (d)&255) +#endif +#ifndef PACK_2S16 +# define PACK_2S16(a,b) PACK_2U16((a)&0xffff, (b)&0xffff) +#endif + +#endif /* AVCODEC_MATHOPS_H */ + -- cgit v1.2.3