Built SDL2_image and _mixer static
This commit is contained in:
53
libsdl2_mixer/external/libvorbis-1.3.5/test/util.c
vendored
Normal file
53
libsdl2_mixer/external/libvorbis-1.3.5/test/util.c
vendored
Normal file
@ -0,0 +1,53 @@
|
||||
/********************************************************************
|
||||
* *
|
||||
* THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. *
|
||||
* USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
|
||||
* GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
|
||||
* IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
|
||||
* *
|
||||
* THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2007 *
|
||||
* by the Xiph.Org Foundation http://www.xiph.org/ *
|
||||
* *
|
||||
********************************************************************
|
||||
|
||||
function: utility functions for vorbis codec test suite.
|
||||
last mod: $Id: util.c 19015 2013-11-12 04:13:28Z giles $
|
||||
|
||||
********************************************************************/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <math.h>
|
||||
#include <string.h>
|
||||
#include <errno.h>
|
||||
|
||||
#include <vorbis/codec.h>
|
||||
#include <vorbis/vorbisenc.h>
|
||||
|
||||
#include "util.h"
|
||||
|
||||
void
|
||||
gen_windowed_sine (float *data, int len, float maximum)
|
||||
{ int k ;
|
||||
|
||||
memset (data, 0, len * sizeof (float)) ;
|
||||
|
||||
len /= 2 ;
|
||||
|
||||
for (k = 0 ; k < len ; k++)
|
||||
{ data [k] = sin (2.0 * k * M_PI * 1.0 / 32.0 + 0.4) ;
|
||||
|
||||
/* Apply Hanning Window. */
|
||||
data [k] *= maximum * (0.5 - 0.5 * cos (2.0 * M_PI * k / ((len) - 1))) ;
|
||||
}
|
||||
|
||||
return ;
|
||||
}
|
||||
|
||||
void
|
||||
set_data_in (float * data, unsigned len, float value)
|
||||
{ unsigned k ;
|
||||
|
||||
for (k = 0 ; k < len ; k++)
|
||||
data [k] = value ;
|
||||
}
|
Reference in New Issue
Block a user