SV platform dependency builds

/** @file patest_sine_time.c

        @ingroup test_src

        @brief Play a sine wave for several seconds, pausing in the middle.

        Uses the Pa_GetStreamTime() call.

        @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"

#include "pa_util.h"

#define NUM_SECONDS   (8)

#define SAMPLE_RATE   (44100)

#define FRAMES_PER_BUFFER  (64)

#ifndef M_PI

#define M_PI  (3.14159265)

#endif

#define TWOPI (M_PI * 2.0)

#define TABLE_SIZE   (200)

typedef struct

{

    double           left_phase;

    double           right_phase;

    volatile PaTime  outTime;

}

paTestData;

/* This routine will be called by the PortAudio engine when audio is needed.

** It may called at interrupt level on some machines so don't do anything

** that could mess up the system like calling malloc() or free().

*/

static int patestCallback( const void *inputBuffer, void *outputBuffer,

                            unsigned long framesPerBuffer,

                            const PaStreamCallbackTimeInfo* timeInfo,

                            PaStreamCallbackFlags statusFlags,

                            void *userData )

{

    paTestData *data = (paTestData*)userData;

    float *out = (float*)outputBuffer;

    unsigned int i;

    double left_phaseInc = 0.02;

    double right_phaseInc = 0.06;

    double left_phase = data->left_phase;

    double right_phase = data->right_phase;

    (void) statusFlags; /* Prevent unused variable warnings. */

    (void) inputBuffer;

    data->outTime = timeInfo->outputBufferDacTime;

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

    {

        left_phase += left_phaseInc;

        if( left_phase > TWOPI ) left_phase -= TWOPI;

        *out++ = (float) sin( left_phase );

        right_phase += right_phaseInc;

        if( right_phase > TWOPI ) right_phase -= TWOPI;

        *out++ = (float) sin( right_phase );

    }

    data->left_phase = left_phase;

    data->right_phase = right_phase;

    return paContinue;

}

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

static void ReportStreamTime( PaStream *stream, paTestData *data );

static void ReportStreamTime( PaStream *stream, paTestData *data )

{

    PaTime  streamTime, latency, outTime;

    streamTime = Pa_GetStreamTime( stream );

    outTime = data->outTime;

    if( outTime < 0.0 )

    {

        printf("Stream time = %8.1f\n", streamTime );

    }

    else

    {

        latency = outTime - streamTime;

        printf("Stream time = %8.4f, outTime = %8.4f, latency = %8.4f\n",

            streamTime, outTime, latency );

    }

    fflush(stdout);

}

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

int main(void);

int main(void)

{

    PaStreamParameters outputParameters;

    PaStream *stream;

    PaError err;

    paTestData data;

    PaTime startTime;

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

    data.left_phase = data.right_phase = 0;

    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 = 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 */

              patestCallback,

              &data );

    if( err != paNoError ) goto error;

    /* Watch until sound is halfway finished. */

    printf("Play for %d seconds.\n", NUM_SECONDS/2 ); fflush(stdout);

    data.outTime = -1.0; /* mark time for callback as undefined */

    err = Pa_StartStream( stream );

    if( err != paNoError ) goto error;

    startTime = Pa_GetStreamTime( stream );

    do

    {

        ReportStreamTime( stream, &data );

        Pa_Sleep(100);

    } while( (Pa_GetStreamTime( stream ) - startTime) < (NUM_SECONDS/2) );

    /* Stop sound for 2 seconds. */

    err = Pa_StopStream( stream );

    if( err != paNoError ) goto error;

    printf("Pause for 2 seconds.\n"); fflush(stdout);

    Pa_Sleep( 2000 );

    data.outTime = -1.0; /* mark time for callback as undefined */

    err = Pa_StartStream( stream );

    if( err != paNoError ) goto error;

    startTime = Pa_GetStreamTime( stream );

    printf("Play until sound is finished.\n"); fflush(stdout);

    do

    {

        ReportStreamTime( stream, &data );

        Pa_Sleep(100);

    } while( (Pa_GetStreamTime( stream ) - startTime) < (NUM_SECONDS/2) );

    err = Pa_CloseStream( stream );

    if( err != paNoError ) goto error;

    Pa_Terminate();

    printf("Test finished.\n");

    return err;

error:

    Pa_Terminate();

    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 ) );

    return err;

}