SV platform dependency builds

/** @file paex_write_sine.c

        @ingroup examples_src

        @brief Play a sine wave for several seconds using the blocking API (Pa_WriteStream())

        @author Ross Bencina <rossb@audiomulch.com>

    @author Phil Burk <philburk@softsynth.com>

*/

/*

 * $Id$

 *

 * 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.

 *

 * 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 <math.h>

#include "portaudio.h"

#define NUM_SECONDS         (5)

#define SAMPLE_RATE         (44100)

#define FRAMES_PER_BUFFER   (1024)

#ifndef M_PI

#define M_PI  (3.14159265)

#endif

#define TABLE_SIZE   (200)

int main(void);

int main(void)

{

    PaStreamParameters outputParameters;

    PaStream *stream;

    PaError err;

    float buffer[FRAMES_PER_BUFFER][2]; /* stereo output buffer */

    float sine[TABLE_SIZE]; /* sine wavetable */

    int left_phase = 0;

    int right_phase = 0;

    int left_inc = 1;

    int right_inc = 3; /* higher pitch so we can distinguish left and right. */

    int i, j, k;

    int bufferCount;

    printf("PortAudio Test: output sine wave. SR = %d, BufSize = %d\n", SAMPLE_RATE, FRAMES_PER_BUFFER);

    /* initialise sinusoidal wavetable */

    for( i=0; i<TABLE_SIZE; i++ )

    {

        sine[i] = (float) sin( ((double)i/(double)TABLE_SIZE) * M_PI * 2. );

    }

    err = Pa_Initialize();

    if( err != paNoError ) goto error;

    outputParameters.device = Pa_GetDefaultOutputDevice(); /* default output device */

    if (outputParameters.device == paNoDevice) {

      fprintf(stderr,"Error: No default output device.\n");

      goto error;

    }

    outputParameters.channelCount = 2;       /* stereo output */

    outputParameters.sampleFormat = paFloat32; /* 32 bit floating point output */

    outputParameters.suggestedLatency = 0.050; // Pa_GetDeviceInfo( outputParameters.device )->defaultLowOutputLatency;

    outputParameters.hostApiSpecificStreamInfo = NULL;

    err = Pa_OpenStream(

              &stream,

              NULL, /* no input */

              &outputParameters,

              SAMPLE_RATE,

              FRAMES_PER_BUFFER,

              paClipOff,      /* we won't output out of range samples so don't bother clipping them */

              NULL, /* no callback, use blocking API */

              NULL ); /* no callback, so no callback userData */

    if( err != paNoError ) goto error;

    printf( "Play 3 times, higher each time.\n" );

    for( k=0; k < 3; ++k )

    {

        err = Pa_StartStream( stream );

        if( err != paNoError ) goto error;

        printf("Play for %d seconds.\n", NUM_SECONDS );

        bufferCount = ((NUM_SECONDS * SAMPLE_RATE) / FRAMES_PER_BUFFER);

        for( i=0; i < bufferCount; i++ )

        {

            for( j=0; j < FRAMES_PER_BUFFER; j++ )

            {

                buffer[j][0] = sine[left_phase];  /* left */

                buffer[j][1] = sine[right_phase];  /* right */

                left_phase += left_inc;

                if( left_phase >= TABLE_SIZE ) left_phase -= TABLE_SIZE;

                right_phase += right_inc;

                if( right_phase >= TABLE_SIZE ) right_phase -= TABLE_SIZE;

            }

            err = Pa_WriteStream( stream, buffer, FRAMES_PER_BUFFER );

            if( err != paNoError ) goto error;

        }   

        err = Pa_StopStream( stream );

        if( err != paNoError ) goto error;

        ++left_inc;

        ++right_inc;

        Pa_Sleep( 1000 );

    }

    err = Pa_CloseStream( stream );

    if( err != paNoError ) goto error;

    Pa_Terminate();

    printf("Test finished.\n");

    return err;

error:

    fprintf( stderr, "An error occured while using the portaudio stream\n" );

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

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

        // Print more information about the error.

        if( err == paUnanticipatedHostError )

        {

                const PaHostErrorInfo *hostErrorInfo = Pa_GetLastHostErrorInfo();

                fprintf( stderr, "Host API error = #%ld, hostApiType = %d\n", hostErrorInfo->errorCode, hostErrorInfo->hostApiType );

                fprintf( stderr, "Host API error = %s\n", hostErrorInfo->errorText );

        }

    Pa_Terminate();

    return err;

}