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authordrowe67 <[email protected]>2023-07-20 08:59:48 +0930
committerGitHub <[email protected]>2023-07-20 08:59:48 +0930
commit06d4c11e699b0351765f10398abb4f663a984f36 (patch)
tree33e22af0814c5b6c3d676f096ae8c2ac8a3ed9f0 /src/kiss_fft.h
parent6588e77f38bdebd7adffe091b22e7760d95d0ccb (diff)
parent4d6c143c0abec15e1d6ed1fd95d36f80e6cb7df8 (diff)
Merge pull request #3 from drowe67/dr-cleanup21.2.0
Cleanup Part 2
Diffstat (limited to 'src/kiss_fft.h')
-rw-r--r--src/kiss_fft.h60
1 files changed, 31 insertions, 29 deletions
diff --git a/src/kiss_fft.h b/src/kiss_fft.h
index c01722c..ea1349e 100644
--- a/src/kiss_fft.h
+++ b/src/kiss_fft.h
@@ -1,9 +1,9 @@
#ifndef KISS_FFT_H
#define KISS_FFT_H
-#include <stdlib.h>
-#include <stdio.h>
#include <math.h>
+#include <stdio.h>
+#include <stdlib.h>
#include <string.h>
#ifdef __cplusplus
@@ -24,36 +24,35 @@ extern "C" {
*/
#ifdef USE_SIMD
-# include <xmmintrin.h>
-# define kiss_fft_scalar __m128
-#define KISS_FFT_MALLOC(nbytes) _mm_malloc(nbytes,16)
+#include <xmmintrin.h>
+#define kiss_fft_scalar __m128
+#define KISS_FFT_MALLOC(nbytes) _mm_malloc(nbytes, 16)
#define KISS_FFT_FREE _mm_free
#else
#define KISS_FFT_MALLOC malloc
#define KISS_FFT_FREE free
#endif
-
#ifdef FIXED_POINT
#include <sys/types.h>
-# if (FIXED_POINT == 32)
-# define kiss_fft_scalar int32_t
-# else
-# define kiss_fft_scalar int16_t
-# endif
+#if (FIXED_POINT == 32)
+#define kiss_fft_scalar int32_t
#else
-# ifndef kiss_fft_scalar
+#define kiss_fft_scalar int16_t
+#endif
+#else
+#ifndef kiss_fft_scalar
/* default is float */
-# define kiss_fft_scalar float
-# endif
+#define kiss_fft_scalar float
+#endif
#endif
typedef struct {
- kiss_fft_scalar r;
- kiss_fft_scalar i;
-}kiss_fft_cpx;
+ kiss_fft_scalar r;
+ kiss_fft_scalar i;
+} kiss_fft_cpx;
-typedef struct kiss_fft_state* kiss_fft_cfg;
+typedef struct kiss_fft_state *kiss_fft_cfg;
/*
* kiss_fft_alloc
@@ -65,8 +64,8 @@ typedef struct kiss_fft_state* kiss_fft_cfg;
* The return value from fft_alloc is a cfg buffer used internally
* by the fft routine or NULL.
*
- * If lenmem is NULL, then kiss_fft_alloc will allocate a cfg buffer using malloc.
- * The returned value should be free()d when done to avoid memory leaks.
+ * If lenmem is NULL, then kiss_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,
@@ -78,7 +77,8 @@ typedef struct kiss_fft_state* kiss_fft_cfg;
* buffer size in *lenmem.
* */
-kiss_fft_cfg kiss_fft_alloc(int nfft,int inverse_fft,void * mem,size_t * lenmem);
+kiss_fft_cfg kiss_fft_alloc(int nfft, int inverse_fft, void *mem,
+ size_t *lenmem);
/*
* kiss_fft(cfg,in_out_buf)
@@ -90,32 +90,34 @@ kiss_fft_cfg kiss_fft_alloc(int nfft,int inverse_fft,void * mem,size_t * lenmem)
* Note that each element is complex and can be accessed like
f[k].r and f[k].i
* */
-void kiss_fft(kiss_fft_cfg cfg,const kiss_fft_cpx *fin,kiss_fft_cpx *fout);
+void kiss_fft(kiss_fft_cfg cfg, const kiss_fft_cpx *fin, kiss_fft_cpx *fout);
/*
- A more generic version of the above function. It reads its input from every Nth sample.
+ A more generic version of the above function. It reads its input from every Nth
+ sample.
* */
-void kiss_fft_stride(kiss_fft_cfg cfg,const kiss_fft_cpx *fin,kiss_fft_cpx *fout,int fin_stride);
+void kiss_fft_stride(kiss_fft_cfg cfg, const kiss_fft_cpx *fin,
+ kiss_fft_cpx *fout, int fin_stride);
/* If kiss_fft_alloc allocated a buffer, it is one contiguous
buffer and can be simply free()d when no longer needed*/
#define kiss_fft_free free
/*
- Cleans up some memory that gets managed internally. Not necessary to call, but it might clean up
- your compiler output to call this before you exit.
+ Cleans up some memory that gets managed internally. Not necessary to call, but
+ it might clean up your compiler output to call this before you exit.
*/
void kiss_fft_cleanup(void);
-
/*
- * Returns the smallest integer k, such that k>=n and k has only "fast" factors (2,3,5)
+ * Returns the smallest integer k, such that k>=n and k has only "fast" factors
+ * (2,3,5)
*/
int kiss_fft_next_fast_size(int n);
/* for real ffts, we need an even size */
#define kiss_fftr_next_fast_size_real(n) \
- (kiss_fft_next_fast_size( ((n)+1)>>1)<<1)
+ (kiss_fft_next_fast_size(((n) + 1) >> 1) << 1)
#ifdef __cplusplus
}