diff options
Diffstat (limited to 'pd/portaudio_v18/pa_tests/debug_dither_calc.c')
-rw-r--r-- | pd/portaudio_v18/pa_tests/debug_dither_calc.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/pd/portaudio_v18/pa_tests/debug_dither_calc.c b/pd/portaudio_v18/pa_tests/debug_dither_calc.c new file mode 100644 index 00000000..793c3990 --- /dev/null +++ b/pd/portaudio_v18/pa_tests/debug_dither_calc.c @@ -0,0 +1,55 @@ +/* + * $Id: debug_dither_calc.c,v 1.1 2002/03/21 00:44:35 philburk Exp $ + * Test Dither calculations. + * + * Author: Phil Burk http://www.softsynth.com + * + * This program uses the PortAudio Portable Audio Library. + * For more information see: http://www.portaudio.com + * Copyright (c) 1999-2000 Ross Bencina and Phil Burk + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files + * (the "Software"), to deal in the Software without restriction, + * including without limitation the rights to use, copy, modify, merge, + * publish, distribute, sublicense, and/or sell copies of the Software, + * and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * Any person wishing to distribute modifications to the Software is + * requested to send the modifications to the original developer so that + * they can be incorporated into the canonical version. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. + * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF + * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + */ +#include <stdio.h> +#include <math.h> +#include "portaudio.h" +#include "pa_host.h" + +/*******************************************************************/ +int main(void); +int main(void) +{ + long max,min; + int i; + + for( i=0; i<10000; i++ ) + { + long dither = PaConvert_TriangularDither(); + // printf("dither = 0x%08X\n", dither ); + if( dither < min ) min = dither; + else if( dither > max ) max = dither; + } + printf("min = 0x%08X = %d, max = 0x%08X = %d\n", min, min, max, max ); +} |