/*** Copyright (c) 2003-2016, Erik de Castro Lopo <erikd@mega-nerd.com>** All rights reserved.**** This code is released under 2-clause BSD license. Please see the** file at : https://github.com/libsndfile/libsamplerate/blob/master/COPYING*/ #include <stdio.h>#include <stdlib.h>#include <string.h> #include <samplerate.h> #include "util.h" #define	BUFFER_LEN		10000 static void float_to_short_test (void) ;static void short_to_float_test (void) ; static void float_to_int_test (void) ;static void int_to_float_test (void) ; intmain (void){	puts ("") ; 	float_to_short_test () ;	short_to_float_test () ; 	float_to_int_test () ;	int_to_float_test () ; 	puts ("") ; 	return 0 ;} /* main */ /*=====================================================================================*/ static voidfloat_to_short_test (void){	static float fpos [] =	{	0.95f, 0.99f, 1.0f, 1.01f, 1.1f, 2.0f, 11.1f, 111.1f, 2222.2f, 33333.3f,		// Some "almost 1" as corner cases		(float) (32767.0 / 32768.0), (float) ((32767.0 + 0.4) / 32768.0), (float) ((32767. + 0.5) / 32768.0),		(float) ((32767.0 + 0.6) / 32768.0), (float) ((32767.0 + 0.9) / 32768.0),		} ;	static float fneg [] =	{	-0.95f, -0.99f, -1.0f, -1.01f, -1.1f, -2.0f, -11.1f, -111.1f, -2222.2f, -33333.3f,		// Some "almost 1" as corner cases		(float) (-32767.0 / 32768.0), (float) (-(32767.0 + 0.4) / 32768.0), (float) (-(32767.0 + 0.5) / 32768.0),		(float) (-(32767.0 + 0.6) / 32768.0), (float) (-(32767.0 + 0.9) / 32768.0),		} ; 	static short out [MAX (ARRAY_LEN (fpos), ARRAY_LEN (fneg))] ; 	int k ; 	printf ("\tfloat_to_short_test ............................. ") ; 	src_float_to_short_array (fpos, out, ARRAY_LEN (fpos)) ; 	for (k = 0 ; k < ARRAY_LEN (fpos) ; k++)		if (out [k] < 30000)		{	printf ("\n\n\tLine %d : out [%d] == %d\n", __LINE__, k, out [k]) ;			exit (1) ;			} ; 	src_float_to_short_array (fneg, out, ARRAY_LEN (fneg)) ; 	for (k = 0 ; k < ARRAY_LEN (fneg) ; k++)		if (out [k] > -30000)		{	printf ("\n\n\tLine %d : out [%d] == %d\n", __LINE__, k, out [k]) ;			exit (1) ;			} ; 	puts ("ok") ; 	return ;} /* float_to_short_test */ /*-------------------------------------------------------------------------------------*/ static voidshort_to_float_test (void){	static short input	[BUFFER_LEN] ;	static short output	[BUFFER_LEN] ;	static float temp	[BUFFER_LEN] ; 	int k ; 	printf ("\tshort_to_float_test ............................. ") ; 	for (k = 0 ; k < ARRAY_LEN (input) ; k++)		input [k] = (k * 0x8000) / ARRAY_LEN (input) ; 	src_short_to_float_array (input, temp, ARRAY_LEN (temp)) ;	src_float_to_short_array (temp, output, ARRAY_LEN (output)) ; 	for (k = 0 ; k < ARRAY_LEN (input) ; k++)		if (ABS (input [k] - output [k]) > 0)		{	printf ("\n\n\tLine %d : index %d   %d -> %d\n", __LINE__, k, input [k], output [k]) ;			exit (1) ;			} ; 	puts ("ok") ; 	return ;} /* short_to_float_test */ /*=====================================================================================*/ static voidfloat_to_int_test (void){	static float fpos [] =	{	0.95f, 0.99f, 1.0f, 1.01f, 1.1f, 2.0f, 11.1f, 111.1f, 2222.2f, 33333.3f		} ;	static float fneg [] =	{	-0.95f, -0.99f, -1.0f, -1.01f, -1.1f, -2.0f, -11.1f, -111.1f, -2222.2f, -33333.3f		} ; 	static int out [MAX (ARRAY_LEN (fpos), ARRAY_LEN (fneg))] ; 	int k ; 	printf ("\tfloat_to_int_test ............................... ") ; 	src_float_to_int_array (fpos, out, ARRAY_LEN (fpos)) ; 	for (k = 0 ; k < ARRAY_LEN (fpos) ; k++)		if (out [k] < 30000 * 0x10000)		{	printf ("\n\n\tLine %d : out [%d] == %d\n", __LINE__, k, out [k]) ;			exit (1) ;			} ; 	src_float_to_int_array (fneg, out, ARRAY_LEN (fneg)) ; 	for (k = 0 ; k < ARRAY_LEN (fneg) ; k++)		if (out [k] > -30000 * 0x1000)		{	printf ("\n\n\tLine %d : out [%d] == %d\n", __LINE__, k, out [k]) ;			exit (1) ;			} ; 	puts ("ok") ; 	return ;} /* float_to_int_test */ /*-------------------------------------------------------------------------------------*/ static voidint_to_float_test (void){	static int input	[BUFFER_LEN] ;	static int output	[BUFFER_LEN] ;	static float temp	[BUFFER_LEN] ; 	int k ; 	printf ("\tint_to_float_test ............................... ") ; 	for (k = 0 ; k < ARRAY_LEN (input) ; k++)		input [k] = (k * 0x80000000) / ARRAY_LEN (input) ; 	src_int_to_float_array (input, temp, ARRAY_LEN (temp)) ;	src_float_to_int_array (temp, output, ARRAY_LEN (output)) ; 	for (k = 0 ; k < ARRAY_LEN (input) ; k++)		if (ABS (input [k] - output [k]) > 0)		{	printf ("\n\n\tLine %d : index %d   %d -> %d\n", __LINE__, k, input [k], output [k]) ;			exit (1) ;			} ; 	puts ("ok") ; 	return ;} /* int_to_float_test */