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https://github.com/mborgerding/kissfft.git
synced 2025-07-20 22:14:24 -04:00
Add common logging mechanism, use NDEBUG to turn off logging
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@ -15,10 +15,11 @@
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#define _kiss_fft_guts_h
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#include "kiss_fft.h"
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#include "kiss_fft_log.h"
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#include <limits.h>
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#define MAXFACTORS 32
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/* e.g. an fft of length 128 has 4 factors
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/* e.g. an fft of length 128 has 4 factors
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as far as kissfft is concerned
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4*4*4*2
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*/
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@ -56,7 +57,7 @@ struct kiss_fft_state{
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#if defined(CHECK_OVERFLOW)
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# define CHECK_OVERFLOW_OP(a,op,b) \
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if ( (SAMPPROD)(a) op (SAMPPROD)(b) > SAMP_MAX || (SAMPPROD)(a) op (SAMPPROD)(b) < SAMP_MIN ) { \
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fprintf(stderr,"WARNING:overflow @ " __FILE__ "(%d): (%d " #op" %d) = %ld\n",__LINE__,(a),(b),(SAMPPROD)(a) op (SAMPPROD)(b) ); }
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KISS_FFT_WARNING("overflow (%d " #op" %d) = %ld", (a),(b),(SAMPPROD)(a) op (SAMPPROD)(b)); }
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#endif
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@ -146,17 +147,17 @@ struct kiss_fft_state{
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/* a debugging function */
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#define pcpx(c)\
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fprintf(stderr,"%g + %gi\n",(double)((c)->r),(double)((c)->i) )
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KISS_FFT_DEBUG("%g + %gi\n",(double)((c)->r),(double)((c)->i))
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#ifdef KISS_FFT_USE_ALLOCA
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// define this to allow use of alloca instead of malloc for temporary buffers
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// Temporary buffers are used in two case:
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// Temporary buffers are used in two case:
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// 1. FFT sizes that have "bad" factors. i.e. not 2,3 and 5
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// 2. "in-place" FFTs. Notice the quotes, since kissfft does not really do an in-place transform.
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#include <alloca.h>
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#define KISS_FFT_TMP_ALLOC(nbytes) alloca(nbytes)
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#define KISS_FFT_TMP_FREE(ptr)
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#define KISS_FFT_TMP_FREE(ptr)
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#else
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#define KISS_FFT_TMP_ALLOC(nbytes) KISS_FFT_MALLOC(nbytes)
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#define KISS_FFT_TMP_FREE(ptr) KISS_FFT_FREE(ptr)
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