173 lines
3.6 KiB
C
173 lines
3.6 KiB
C
#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "mathops.c"
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#include "entcode.c"
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#include <stdio.h>
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#include <math.h>
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#ifdef FIXED_POINT
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#define WORD "%d"
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#else
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#define WORD "%f"
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#endif
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#ifdef FIXED_DEBUG
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long long celt_mips=0;
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#endif
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int ret = 0;
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void testdiv(void)
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{
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celt_int32 i;
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for (i=1;i<=327670;i++)
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{
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double prod;
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celt_word32 val;
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val = celt_rcp(i);
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#ifdef FIXED_POINT
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prod = (1./32768./65526.)*val*i;
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#else
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prod = val*i;
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#endif
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if (fabs(prod-1) > .00025)
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{
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fprintf (stderr, "div failed: 1/%d="WORD" (product = %f)\n", i, val, prod);
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ret = 1;
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}
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}
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}
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void testsqrt(void)
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{
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celt_int32 i;
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for (i=1;i<=1000000000;i++)
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{
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double ratio;
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celt_word16 val;
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val = celt_sqrt(i);
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ratio = val/sqrt(i);
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if (fabs(ratio - 1) > .0005 && fabs(val-sqrt(i)) > 2)
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{
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fprintf (stderr, "sqrt failed: sqrt(%d)="WORD" (ratio = %f)\n", i, val, ratio);
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ret = 1;
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}
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i+= i>>10;
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}
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}
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#ifndef FIXED_POINT
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void testlog2(void)
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{
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float x;
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for (x=0.001;x<1677700.0;x+=(x/8.0))
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{
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float error = fabs((1.442695040888963387*log(x))-celt_log2(x));
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if (error>0.0009)
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{
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fprintf (stderr, "celt_log2 failed: fabs((1.442695040888963387*log(x))-celt_log2(x))>0.001 (x = %f, error = %f)\n", x,error);
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ret = 1;
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}
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}
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}
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void testexp2(void)
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{
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float x;
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for (x=-11.0;x<24.0;x+=0.0007)
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{
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float error = fabs(x-(1.442695040888963387*log(celt_exp2(x))));
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if (error>0.0002)
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{
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fprintf (stderr, "celt_exp2 failed: fabs(x-(1.442695040888963387*log(celt_exp2(x))))>0.0005 (x = %f, error = %f)\n", x,error);
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ret = 1;
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}
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}
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}
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void testexp2log2(void)
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{
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float x;
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for (x=-11.0;x<24.0;x+=0.0007)
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{
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float error = fabs(x-(celt_log2(celt_exp2(x))));
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if (error>0.001)
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{
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fprintf (stderr, "celt_log2/celt_exp2 failed: fabs(x-(celt_log2(celt_exp2(x))))>0.001 (x = %f, error = %f)\n", x,error);
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ret = 1;
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}
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}
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}
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#else
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void testlog2(void)
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{
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celt_word32 x;
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for (x=8;x<1073741824;x+=(x>>3))
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{
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float error = fabs((1.442695040888963387*log(x/16384.0))-celt_log2(x)/1024.0);
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if (error>0.003)
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{
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fprintf (stderr, "celt_log2 failed: x = %ld, error = %f\n", (long)x,error);
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ret = 1;
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}
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}
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}
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void testexp2(void)
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{
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celt_word16 x;
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for (x=-32768;x<-30720;x++)
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{
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float error1 = fabs(x/2048.0-(1.442695040888963387*log(celt_exp2(x)/65536.0)));
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float error2 = fabs(exp(0.6931471805599453094*x/2048.0)-celt_exp2(x)/65536.0);
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if (error1>0.0002&&error2>0.00004)
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{
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fprintf (stderr, "celt_exp2 failed: x = "WORD", error1 = %f, error2 = %f\n", x,error1,error2);
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ret = 1;
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}
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}
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}
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void testexp2log2(void)
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{
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celt_word32 x;
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for (x=8;x<65536;x+=(x>>3))
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{
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float error = fabs(x-0.25*celt_exp2(celt_log2(x)<<1))/16384;
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if (error>0.004)
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{
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fprintf (stderr, "celt_log2/celt_exp2 failed: fabs(x-(celt_exp2(celt_log2(x))))>0.001 (x = %ld, error = %f)\n", (long)x,error);
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ret = 1;
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}
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}
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}
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void testilog2(void)
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{
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celt_word32 x;
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for (x=1;x<=268435455;x+=127)
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{
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celt_word32 error = abs(celt_ilog2(x)-(int)floor(log2(x)));
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if (error!=0)
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{
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printf("celt_ilog2 failed: celt_ilog2(x)!=floor(log2(x)) (x = %d, error = %d)\n",x,error);
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ret = 1;
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}
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}
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}
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#endif
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int main(void)
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{
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testdiv();
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testsqrt();
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testlog2();
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testexp2();
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testexp2log2();
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#ifdef FIXED_POINT
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testilog2();
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#endif
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return ret;
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}
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