SV platform dependency builds

/** @file patest_sine8.c

        @ingroup test_src

        @brief Test 8 bit data: play a sine wave for several seconds.

        @author Ross Bencina <rossb@audiomulch.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   (8)

#define SAMPLE_RATE   (44100)

#define TABLE_SIZE    (200)

#define TEST_UNSIGNED (0)

#if TEST_UNSIGNED

#define TEST_FORMAT   paUInt8

typedef unsigned char sample_t;

#define SILENCE       ((sample_t)0x80)

#else

#define TEST_FORMAT   paInt8

typedef char          sample_t;

#define SILENCE       ((sample_t)0x00)

#endif

#ifndef M_PI

#define M_PI (3.14159265)

#endif

typedef struct

{

    sample_t sine[TABLE_SIZE];

    int left_phase;

    int right_phase;

    unsigned int framesToGo;

}

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;

    sample_t *out = (sample_t*)outputBuffer;

    int i;

    int framesToCalc;

    int finished = 0;

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

    if( data->framesToGo < framesPerBuffer )

    {

        framesToCalc = data->framesToGo;

        data->framesToGo = 0;

        finished = 1;

    }

    else

    {

        framesToCalc = framesPerBuffer;

        data->framesToGo -= framesPerBuffer;

    }

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

    {

        *out++ = data->sine[data->left_phase];  /* left */

        *out++ = data->sine[data->right_phase];  /* right */

        data->left_phase += 1;

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

        data->right_phase += 3; /* higher pitch so we can distinguish left and right. */

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

    }

    /* zero remainder of final buffer */

    for( ; i<(int)framesPerBuffer; i++ )

    {

        *out++ = SILENCE; /* left */

        *out++ = SILENCE; /* right */

    }

    return finished;

}

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

int main(void);

int main(void)

{

    PaStreamParameters  outputParameters;

    PaStream*           stream;

    PaError             err;

    paTestData          data;

    PaTime              streamOpened;

    int                 i, totalSamps;

#if TEST_UNSIGNED

    printf("PortAudio Test: output UNsigned 8 bit sine wave.\n");

#else

    printf("PortAudio Test: output signed 8 bit sine wave.\n");

#endif

    /* initialise sinusoidal wavetable */

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

    {

        data.sine[i] = SILENCE + (char) (127.0 * sin( ((double)i/(double)TABLE_SIZE) * M_PI * 2. ));

    }

    data.left_phase = data.right_phase = 0;

    data.framesToGo = totalSamps =  NUM_SECONDS * SAMPLE_RATE; /* Play for a few seconds. */

    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 = TEST_FORMAT;

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

    outputParameters.hostApiSpecificStreamInfo = NULL;

    err = Pa_OpenStream( &stream,

                         NULL,      /* No input. */

                         &outputParameters,

                         SAMPLE_RATE,

                         256,       /* 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;

    streamOpened = Pa_GetStreamTime( stream ); /* Time in seconds when stream was opened (approx). */

    err = Pa_StartStream( stream );

    if( err != paNoError )

        goto error;

    /* Watch until sound is halfway finished. */

    /* (Was ( Pa_StreamTime( stream ) < (totalSamps/2) ) in V18. */

    while( (Pa_GetStreamTime( stream ) - streamOpened) < (PaTime)NUM_SECONDS / 2.0 )

        Pa_Sleep(10);

    /* Stop sound. */

    printf("Stopping Stream.\n");

    err = Pa_StopStream( stream );

    if( err != paNoError )

        goto error;

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

    Pa_Sleep( 2000 );

    printf("Starting again.\n");

    err = Pa_StartStream( stream );

    if( err != paNoError )

        goto error;

    printf("Waiting for sound to finish.\n");

    while( ( err = Pa_IsStreamActive( stream ) ) == 1 )

        Pa_Sleep(100);

    if( err < 0 )

        goto error;

    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;

}