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-rw-r--r--pd/portaudio_v18/pa_tests/patest_saw.c118
1 files changed, 0 insertions, 118 deletions
diff --git a/pd/portaudio_v18/pa_tests/patest_saw.c b/pd/portaudio_v18/pa_tests/patest_saw.c
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--- a/pd/portaudio_v18/pa_tests/patest_saw.c
+++ /dev/null
@@ -1,118 +0,0 @@
-/*
- * $Id: patest_saw.c,v 1.1.1.1 2002/01/22 00:52:38 phil Exp $
- * patest_saw.c
- * Play a simple sawtooth wave.
- *
- * Author: Phil Burk http://www.softsynth.com
- *
- * 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.
- *
- * 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.
- *
- * 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.
- *
- */
-#include <stdio.h>
-#include <math.h>
-#include "portaudio.h"
-#define NUM_SECONDS (4)
-#define SAMPLE_RATE (44100)
-typedef struct
-{
- float left_phase;
- float right_phase;
-}
-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( void *inputBuffer, void *outputBuffer,
- unsigned long framesPerBuffer,
- PaTimestamp outTime, void *userData )
-{
- /* Cast data passed through stream to our structure. */
- paTestData *data = (paTestData*)userData;
- float *out = (float*)outputBuffer;
- unsigned int i;
- (void) outTime; /* Prevent unused variable warnings. */
- (void) inputBuffer;
-
- for( i=0; i<framesPerBuffer; i++ )
- {
- *out++ = data->left_phase; /* left */
- *out++ = data->right_phase; /* right */
- /* Generate simple sawtooth phaser that ranges between -1.0 and 1.0. */
- data->left_phase += 0.01f;
- /* When signal reaches top, drop back down. */
- if( data->left_phase >= 1.0f ) data->left_phase -= 2.0f;
- /* higher pitch so we can distinguish left and right. */
- data->right_phase += 0.03f;
- if( data->right_phase >= 1.0f ) data->right_phase -= 2.0f;
- }
- return 0;
-}
-/*******************************************************************/
-static paTestData data;
-int main(void);
-int main(void)
-{
- PortAudioStream *stream;
- PaError err;
- printf("PortAudio Test: output sawtooth wave.\n");
- /* Initialize our data for use by callback. */
- data.left_phase = data.right_phase = 0.0;
- /* Initialize library before making any other calls. */
- err = Pa_Initialize();
- if( err != paNoError ) goto error;
- /* Open an audio I/O stream. */
- err = Pa_OpenDefaultStream(
- &stream,
- 0, /* no input channels */
- 2, /* stereo output */
- paFloat32, /* 32 bit floating point output */
- SAMPLE_RATE,
- 256, /* frames per buffer */
- 0, /* number of buffers, if zero then use default minimum */
- patestCallback,
- &data );
- if( err != paNoError ) goto error;
- err = Pa_StartStream( stream );
- if( err != paNoError ) goto error;
- /* Sleep for several seconds. */
- Pa_Sleep(NUM_SECONDS*1000);
- err = Pa_StopStream( stream );
- if( err != paNoError ) 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;
-}