312 lines
8.2 KiB
C
312 lines
8.2 KiB
C
/*
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* SpanDSP - a series of DSP components for telephony
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*
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* saturated_tests.c
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*
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* Written by Steve Underwood <steveu@coppice.org>
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*
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* Copyright (C) 2004 Steve Underwood
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*
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* All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2, as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/*! \page saturated_tests_page Saturated arithmetic function tests
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\section saturated_tests_page_sec_1 What does it do?
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???.
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\section saturated_tests_page_sec_2 How does it work?
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???.
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*/
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#if defined(HAVE_CONFIG_H)
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#include "config.h"
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#endif
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#define SPANDSP_EXPOSE_INTERNAL_STRUCTURES
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#include "spandsp.h"
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int main(int argc, char *argv[])
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{
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printf("Testing 16 bit saturation\n");
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if (saturate16(10000) != 10000
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saturate16(-10000) != -10000
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saturate16(32767) != 32767
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saturate16(-32768) != -32768
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saturate16(32768) != 32767
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saturate16(-32769) != -32768)
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{
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printf("Test failed.\n");
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exit(2);
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}
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printf("Testing 15 bit saturation\n");
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if (saturate15(10000) != 10000
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saturate15(-10000) != -10000
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saturate15(16383) != 16383
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saturate15(-16384) != -16384
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saturate15(16384) != 16383
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saturate15(-16385) != -16384)
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{
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printf("Test failed.\n");
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exit(2);
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}
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printf("Testing 16 bit unsigned saturation\n");
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if (saturateu16(10000) != 10000
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saturateu16(32767) != 32767
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saturateu16(65535) != 65535
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saturateu16(65536) != 65535)
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{
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printf("Test failed.\n");
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exit(2);
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}
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printf("Testing 8 bit unsigned saturation\n");
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if (saturateu8(100) != 100
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saturateu8(127) != 127
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saturateu8(255) != 255
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saturateu8(256) != 255)
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{
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printf("Test failed.\n");
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exit(2);
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}
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printf("Testing 16 bit saturation from float\n");
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if (fsaturatef(10000.0f) != 10000
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fsaturatef(-10000.0f) != -10000
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fsaturatef(32767.0f) != 32767
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fsaturatef(-32768.0f) != -32768
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fsaturatef(32768.0f) != 32767
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fsaturatef(-32769.0f) != -32768)
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{
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printf("Test failed.\n");
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exit(2);
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}
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printf("Testing 16 bit saturation from double\n");
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if (fsaturate(10000.0) != 10000
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fsaturate(-10000.0) != -10000
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fsaturate(32767.0) != 32767
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fsaturate(-32768.0) != -32768
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fsaturate(32768.0) != 32767
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fsaturate(-32769.0) != -32768)
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{
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printf("Test failed.\n");
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exit(2);
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}
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printf("Testing 16 bit fast saturation from float\n");
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if (ffastsaturatef(10000.0f) != 10000
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ffastsaturatef(-10000.0f) != -10000
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ffastsaturatef(32767.0f) != 32767
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ffastsaturatef(-32768.0f) != -32768
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ffastsaturatef(32768.0f) != 32767
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ffastsaturatef(-32769.0f) != -32768)
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{
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printf("Test failed.\n");
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exit(2);
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}
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printf("Testing 16 bit fast saturation from double\n");
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if (ffastsaturate(10000.0) != 10000
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ffastsaturate(-10000.0) != -10000
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ffastsaturate(32767.0) != 32767
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ffastsaturate(-32768.0) != -32768
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ffastsaturate(32768.0) != 32767
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ffastsaturate(-32769.0) != -32768)
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{
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printf("Test failed.\n");
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exit(2);
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}
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printf("Testing 16 bit float saturation from float\n");
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if (ffsaturatef(10000.0f) != 10000.0f
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ffsaturatef(-10000.0f) != -10000.0f
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ffsaturatef(32767.0f) != 32767.0f
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ffsaturatef(-32768.0f) != -32768.0f
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ffsaturatef(32768.0f) != 32767.0f
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ffsaturatef(-32769.0f) != -32768.0f)
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{
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printf("Test failed.\n");
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exit(2);
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}
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printf("Testing 16 bit double saturation from double\n");
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if (ffsaturate(10000.0) != 10000.0
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ffsaturate(-10000.0) != -10000.0
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ffsaturate(32767.0) != 32767.0
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ffsaturate(-32768.0) != -32768.0
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ffsaturate(32768.0) != 32767.0
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ffsaturate(-32769.0) != -32768.0)
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{
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printf("Test failed.\n");
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exit(2);
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}
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printf("Testing 16 bit add\n");
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if (saturated_add16(10000, 10000) != 20000
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saturated_add16(10000, -10000) != 0
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saturated_add16(-10000, 10000) != 0
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saturated_add16(-10000, -10000) != -20000
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saturated_add16(-30000, -30000) != INT16_MIN
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saturated_add16(30000, 30000) != INT16_MAX)
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{
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printf("Test failed.\n");
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exit(2);
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}
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printf("Testing 32 bit add\n");
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if (saturated_add32(10000, 10000) != 20000
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saturated_add32(10000, -10000) != 0
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saturated_add32(-10000, 10000) != 0
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saturated_add32(-10000, -10000) != -20000
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saturated_add32(-2000000000, -2000000000) != INT32_MIN
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saturated_add32(2000000000, 2000000000) != INT32_MAX)
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{
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printf("Test failed.\n");
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exit(2);
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}
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printf("Testing 16 bit subtract\n");
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if (saturated_sub16(10000, 10000) != 0
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saturated_sub16(10000, -10000) != 20000
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saturated_sub16(-10000, 10000) != -20000
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saturated_sub16(-10000, -10000) != 0
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saturated_sub16(-30000, 30000) != INT16_MIN
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saturated_sub16(30000, -30000) != INT16_MAX)
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{
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printf("Test failed.\n");
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exit(2);
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}
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printf("Testing 32 bit subtract\n");
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if (saturated_sub32(10000, 10000) != 0
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saturated_sub32(10000, -10000) != 20000
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saturated_sub32(-10000, 10000) != -20000
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saturated_sub32(-10000, -10000) != 0
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saturated_sub32(-2000000000, 2000000000) != INT32_MIN
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saturated_sub32(2000000000, -2000000000) != INT32_MAX)
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{
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printf("Test failed.\n");
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exit(2);
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}
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printf("Testing 16 x 16 => 16 bit multiply\n");
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if (saturated_mul16(100, 100) != 0
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saturated_mul16(255, 255) != 1
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saturated_mul16(32767, -32768) != -32767
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saturated_mul16(-32768, 32767) != -32767
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saturated_mul16(32767, 32767) != 32766
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saturated_mul16(-32768, -32768) != 32767)
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{
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printf("Test failed.\n");
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exit(2);
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}
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printf("Testing 16 x 16 => 32 bit multiply\n");
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if (saturated_mul16_32(100, 100) != 20000
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saturated_mul16_32(-100, 100) != -20000
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saturated_mul16_32(32767, -32768) != -2147418112
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saturated_mul16_32(-32768, 32767) != -2147418112
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saturated_mul16_32(32767, 32767) != 2147352578
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saturated_mul16_32(-32768, -32768) != -2147483648)
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{
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printf("Test failed.\n");
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exit(2);
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}
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printf("Testing 16 bit absolute\n");
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if (saturated_abs16(10000) != 10000
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saturated_abs16(-10000) != 10000
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saturated_abs16(32767) != 32767
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saturated_abs16(-32768) != 32767)
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{
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printf("Test failed.\n");
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exit(2);
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}
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printf("Tests passed.\n");
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return 0;
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}
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/*- End of function --------------------------------------------------------*/
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/*- End of file ------------------------------------------------------------*/
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