SV platform dependency builds

/*

 * $Id$

 * test_rw_echo.c

 * Echo delayed input to output.

 *

 * Author: Phil Burk, http://www.softsynth.com/portaudio/

 *

 * This program uses PABLIO, the Portable Audio Blocking I/O Library.

 * PABLIO is built on top of PortAudio, the Portable Audio Library.

 *

 * Note that if you need low latency, you should not use PABLIO.

 * Use the PA_OpenStream callback technique which is lower level

 * than PABLIO.

 *

 * 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.

 *

 * 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.

 */

/*

 * The text above constitutes the entire PortAudio license; however, 

 * the PortAudio community also makes the following non-binding requests:

 *

 * 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. It is also 

 * requested that these non-binding requests be included along with the 

 * license above.

 */

#include <stdio.h>

#include <stdlib.h>

#include <math.h>

#include "pablio.h"

#include <string.h>

/*

** Note that many of the older ISA sound cards on PCs do NOT support

** full duplex audio (simultaneous record and playback).

** And some only support full duplex at lower sample rates.

*/

#define SAMPLE_RATE         (22050)

#define NUM_SECONDS            (20)

#define SAMPLES_PER_FRAME       (2)

/* Select whether we will use floats or shorts. */

#if 1

#define SAMPLE_TYPE  paFloat32

typedef float SAMPLE;

#else

#define SAMPLE_TYPE  paInt16

typedef short SAMPLE;

#endif

#define NUM_ECHO_FRAMES   (2*SAMPLE_RATE)

SAMPLE   samples[NUM_ECHO_FRAMES][SAMPLES_PER_FRAME] = {0.0};

/*******************************************************************/

int main(void);

int main(void)

{

    int      i;

    PaError  err;

    PABLIO_Stream     *aInStream;

    PABLIO_Stream     *aOutStream;

    int      index;

    printf("Full duplex sound test using PABLIO\n");

    fflush(stdout);

    /* Open simplified blocking I/O layer on top of PortAudio. */

    /* Open input first so it can start to fill buffers. */

    err = OpenAudioStream( &aInStream, SAMPLE_RATE, SAMPLE_TYPE,

                           (PABLIO_READ | PABLIO_STEREO) );

    if( err != paNoError ) goto error;

    /* printf("opened input\n");  fflush(stdout); /**/

    err = OpenAudioStream( &aOutStream, SAMPLE_RATE, SAMPLE_TYPE,

                           (PABLIO_WRITE | PABLIO_STEREO) );

    if( err != paNoError ) goto error;

    /* printf("opened output\n");  fflush(stdout); /**/

    /* Process samples in the foreground. */

    index = 0;

    for( i=0; i<(NUM_SECONDS * SAMPLE_RATE); i++ )

    {

        /* Write old frame of data to output. */

        /* samples[index][1] = (i&256) * (1.0f/256.0f); /* sawtooth */

        WriteAudioStream( aOutStream, &samples[index][0], 1 );

        /* Read one frame of data into sample array for later output. */

        ReadAudioStream( aInStream, &samples[index][0], 1 );

        index += 1;

        if( index >= NUM_ECHO_FRAMES ) index = 0;

        if( (i & 0xFFFF) == 0 ) printf("i = %d\n", i ); fflush(stdout); /**/

    }

    CloseAudioStream( aOutStream );

    CloseAudioStream( aInStream );

    printf("R/W echo sound test complete.\n" );

    fflush(stdout);

    return 0;

error:

    fprintf( stderr, "An error occured while using PortAudio\n" );

    fprintf( stderr, "Error number: %d\n", err );

    fprintf( stderr, "Error message: %s\n", Pa_GetErrorText( err ) );

    return -1;

}