diff options
Diffstat (limited to 'thirdparty/opus/celt/kiss_fft.h')
| -rw-r--r-- | thirdparty/opus/celt/kiss_fft.h | 200 |
1 files changed, 0 insertions, 200 deletions
diff --git a/thirdparty/opus/celt/kiss_fft.h b/thirdparty/opus/celt/kiss_fft.h deleted file mode 100644 index bffa2bfad6..0000000000 --- a/thirdparty/opus/celt/kiss_fft.h +++ /dev/null @@ -1,200 +0,0 @@ -/*Copyright (c) 2003-2004, Mark Borgerding - Lots of modifications by Jean-Marc Valin - Copyright (c) 2005-2007, Xiph.Org Foundation - Copyright (c) 2008, Xiph.Org Foundation, CSIRO - - All rights reserved. - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions are met: - - * Redistributions of source code must retain the above copyright notice, - this list of conditions and the following disclaimer. - * Redistributions in binary form must reproduce the above copyright notice, - this list of conditions and the following disclaimer in the - documentation and/or other materials provided with the distribution. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE - LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - POSSIBILITY OF SUCH DAMAGE.*/ - -#ifndef KISS_FFT_H -#define KISS_FFT_H - -#include <stdlib.h> -#include <math.h> -#include "arch.h" -#include "cpu_support.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#ifdef USE_SIMD -# include <xmmintrin.h> -# define kiss_fft_scalar __m128 -#define KISS_FFT_MALLOC(nbytes) memalign(16,nbytes) -#else -#define KISS_FFT_MALLOC opus_alloc -#endif - -#ifdef FIXED_POINT -#include "arch.h" - -# define kiss_fft_scalar opus_int32 -# define kiss_twiddle_scalar opus_int16 - - -#else -# ifndef kiss_fft_scalar -/* default is float */ -# define kiss_fft_scalar float -# define kiss_twiddle_scalar float -# define KF_SUFFIX _celt_single -# endif -#endif - -typedef struct { - kiss_fft_scalar r; - kiss_fft_scalar i; -}kiss_fft_cpx; - -typedef struct { - kiss_twiddle_scalar r; - kiss_twiddle_scalar i; -}kiss_twiddle_cpx; - -#define MAXFACTORS 8 -/* e.g. an fft of length 128 has 4 factors - as far as kissfft is concerned - 4*4*4*2 - */ - -typedef struct arch_fft_state{ - int is_supported; - void *priv; -} arch_fft_state; - -typedef struct kiss_fft_state{ - int nfft; - opus_val16 scale; -#ifdef FIXED_POINT - int scale_shift; -#endif - int shift; - opus_int16 factors[2*MAXFACTORS]; - const opus_int16 *bitrev; - const kiss_twiddle_cpx *twiddles; - arch_fft_state *arch_fft; -} kiss_fft_state; - -#if defined(HAVE_ARM_NE10) -#include "arm/fft_arm.h" -#endif - -/*typedef struct kiss_fft_state* kiss_fft_cfg;*/ - -/** - * opus_fft_alloc - * - * Initialize a FFT (or IFFT) algorithm's cfg/state buffer. - * - * typical usage: kiss_fft_cfg mycfg=opus_fft_alloc(1024,0,NULL,NULL); - * - * The return value from fft_alloc is a cfg buffer used internally - * by the fft routine or NULL. - * - * If lenmem is NULL, then opus_fft_alloc will allocate a cfg buffer using malloc. - * The returned value should be free()d when done to avoid memory leaks. - * - * The state can be placed in a user supplied buffer 'mem': - * If lenmem is not NULL and mem is not NULL and *lenmem is large enough, - * then the function places the cfg in mem and the size used in *lenmem - * and returns mem. - * - * If lenmem is not NULL and ( mem is NULL or *lenmem is not large enough), - * then the function returns NULL and places the minimum cfg - * buffer size in *lenmem. - * */ - -kiss_fft_state *opus_fft_alloc_twiddles(int nfft,void * mem,size_t * lenmem, const kiss_fft_state *base, int arch); - -kiss_fft_state *opus_fft_alloc(int nfft,void * mem,size_t * lenmem, int arch); - -/** - * opus_fft(cfg,in_out_buf) - * - * Perform an FFT on a complex input buffer. - * for a forward FFT, - * fin should be f[0] , f[1] , ... ,f[nfft-1] - * fout will be F[0] , F[1] , ... ,F[nfft-1] - * Note that each element is complex and can be accessed like - f[k].r and f[k].i - * */ -void opus_fft_c(const kiss_fft_state *cfg,const kiss_fft_cpx *fin,kiss_fft_cpx *fout); -void opus_ifft_c(const kiss_fft_state *cfg,const kiss_fft_cpx *fin,kiss_fft_cpx *fout); - -void opus_fft_impl(const kiss_fft_state *st,kiss_fft_cpx *fout); -void opus_ifft_impl(const kiss_fft_state *st,kiss_fft_cpx *fout); - -void opus_fft_free(const kiss_fft_state *cfg, int arch); - - -void opus_fft_free_arch_c(kiss_fft_state *st); -int opus_fft_alloc_arch_c(kiss_fft_state *st); - -#if !defined(OVERRIDE_OPUS_FFT) -/* Is run-time CPU detection enabled on this platform? */ -#if defined(OPUS_HAVE_RTCD) && (defined(HAVE_ARM_NE10)) - -extern int (*const OPUS_FFT_ALLOC_ARCH_IMPL[OPUS_ARCHMASK+1])( - kiss_fft_state *st); - -#define opus_fft_alloc_arch(_st, arch) \ - ((*OPUS_FFT_ALLOC_ARCH_IMPL[(arch)&OPUS_ARCHMASK])(_st)) - -extern void (*const OPUS_FFT_FREE_ARCH_IMPL[OPUS_ARCHMASK+1])( - kiss_fft_state *st); -#define opus_fft_free_arch(_st, arch) \ - ((*OPUS_FFT_FREE_ARCH_IMPL[(arch)&OPUS_ARCHMASK])(_st)) - -extern void (*const OPUS_FFT[OPUS_ARCHMASK+1])(const kiss_fft_state *cfg, - const kiss_fft_cpx *fin, kiss_fft_cpx *fout); -#define opus_fft(_cfg, _fin, _fout, arch) \ - ((*OPUS_FFT[(arch)&OPUS_ARCHMASK])(_cfg, _fin, _fout)) - -extern void (*const OPUS_IFFT[OPUS_ARCHMASK+1])(const kiss_fft_state *cfg, - const kiss_fft_cpx *fin, kiss_fft_cpx *fout); -#define opus_ifft(_cfg, _fin, _fout, arch) \ - ((*OPUS_IFFT[(arch)&OPUS_ARCHMASK])(_cfg, _fin, _fout)) - -#else /* else for if defined(OPUS_HAVE_RTCD) && (defined(HAVE_ARM_NE10)) */ - -#define opus_fft_alloc_arch(_st, arch) \ - ((void)(arch), opus_fft_alloc_arch_c(_st)) - -#define opus_fft_free_arch(_st, arch) \ - ((void)(arch), opus_fft_free_arch_c(_st)) - -#define opus_fft(_cfg, _fin, _fout, arch) \ - ((void)(arch), opus_fft_c(_cfg, _fin, _fout)) - -#define opus_ifft(_cfg, _fin, _fout, arch) \ - ((void)(arch), opus_ifft_c(_cfg, _fin, _fout)) - -#endif /* end if defined(OPUS_HAVE_RTCD) && (defined(HAVE_ARM_NE10)) */ -#endif /* end if !defined(OVERRIDE_OPUS_FFT) */ - -#ifdef __cplusplus -} -#endif - -#endif |