From 9c0e19a3be2288db79e2502e5fa450c3e20a668d Mon Sep 17 00:00:00 2001
From: Guenter  Geiger <ggeiger@users.sourceforge.net>
Date: Fri, 9 May 2003 16:04:00 +0000
Subject: This commit was generated by cvs2svn to compensate for changes in
 r610, which included commits to RCS files with non-trunk default branches.

svn path=/trunk/; revision=611
---
 pd/portaudio/pa_tests/patest_many.c | 194 ++++++++++++++++++++++++++++++++++++
 1 file changed, 194 insertions(+)
 create mode 100644 pd/portaudio/pa_tests/patest_many.c

(limited to 'pd/portaudio/pa_tests/patest_many.c')

diff --git a/pd/portaudio/pa_tests/patest_many.c b/pd/portaudio/pa_tests/patest_many.c
new file mode 100644
index 00000000..f42efb52
--- /dev/null
+++ b/pd/portaudio/pa_tests/patest_many.c
@@ -0,0 +1,194 @@
+/*
+ * $Id: patest_many.c,v 1.1.1.1 2003-05-09 16:03:56 ggeiger Exp $
+ * patest_many.c
+ * Start and stop the PortAudio Driver multiple times.
+ *
+ * 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 <stdlib.h>
+#include <math.h>
+#include "portaudio.h"
+#define NUM_SECONDS   (1)
+#define SAMPLE_RATE   (44100)
+#ifndef M_PI
+#define M_PI  (3.14159265)
+#endif
+#define TABLE_SIZE   (200)
+typedef struct
+{
+    short sine[TABLE_SIZE];
+    int left_phase;
+    int right_phase;
+    unsigned int sampsToGo;
+}
+paTestData;
+PaError TestOnce( void );
+static int patest1Callback( void *inputBuffer, void *outputBuffer,
+                            unsigned long framesPerBuffer,
+                            PaTimestamp outTime, void *userData );
+/* 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 patest1Callback( void *inputBuffer, void *outputBuffer,
+                            unsigned long framesPerBuffer,
+                            PaTimestamp outTime, void *userData )
+{
+    paTestData *data = (paTestData*)userData;
+    short *out = (short*)outputBuffer;
+    unsigned int i;
+    int finished = 0;
+    (void) inputBuffer; /* Prevent "unused variable" warnings. */
+    (void) outTime;
+
+    if( data->sampsToGo < framesPerBuffer )
+    {
+        /* final buffer... */
+
+        for( i=0; i<data->sampsToGo; 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<framesPerBuffer; i++ )
+        {
+            *out++ = 0; /* left */
+            *out++ = 0; /* right */
+        }
+
+        finished = 1;
+    }
+    else
+    {
+        for( i=0; i<framesPerBuffer; 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;
+        }
+        data->sampsToGo -= framesPerBuffer;
+    }
+    return finished;
+}
+/*******************************************************************/
+#ifdef MACINTOSH
+int main(void);
+int main(void)
+{
+    int i;
+    PaError err;
+    int numLoops = 10;
+    printf("Loop %d times.\n", numLoops );
+    for( i=0; i<numLoops; i++ )
+    {
+        printf("Loop %d out of %d.\n", i+1, numLoops );
+        err = TestOnce();
+        if( err < 0 ) return 0;
+    }
+}
+#else
+int main(int argc, char **argv);
+int main(int argc, char **argv)
+{
+    PaError err;
+    int i, numLoops = 10;
+    if( argc > 1 )
+    {
+        numLoops = atoi(argv[1]);
+    }
+    for( i=0; i<numLoops; i++ )
+    {
+        printf("Loop %d out of %d.\n", i+1, numLoops );
+        err = TestOnce();
+        if( err < 0 ) return 1;
+    }
+    printf("Test complete.\n");
+    return 0;
+}
+#endif
+PaError TestOnce( void )
+{
+    PortAudioStream *stream;
+    PaError err;
+    paTestData data;
+    int i;
+    int totalSamps;
+    /* initialise sinusoidal wavetable */
+    for( i=0; i<TABLE_SIZE; i++ )
+    {
+        data.sine[i] = (short) (32767.0 * sin( ((double)i/(double)TABLE_SIZE) * M_PI * 2. ));
+    }
+    data.left_phase = data.right_phase = 0;
+    data.sampsToGo = totalSamps =  NUM_SECONDS * SAMPLE_RATE; /* Play for a few seconds. */
+    err = Pa_Initialize();
+    if( err != paNoError ) goto error;
+    err = Pa_OpenStream(
+              &stream,
+              paNoDevice,/* default input device */
+              0,              /* no input */
+              paInt16,  /* sample format */
+              NULL,
+              Pa_GetDefaultOutputDeviceID(), /* default output device */
+              2,              /* stereo output */
+              paInt16,        /* sample format */
+              NULL,
+              SAMPLE_RATE,
+              1024,           /* frames per buffer */
+              8,              /* number of buffers, if zero then use default minimum */
+              paClipOff,      /* we won't output out of range samples so don't bother clipping them */
+              patest1Callback,
+              &data );
+    if( err != paNoError ) goto error;
+
+    err = Pa_StartStream( stream );
+    if( err != paNoError ) goto error;
+    printf("Waiting for sound to finish.\n");
+    Pa_Sleep(1000);
+    err = Pa_CloseStream( stream );
+    if( err != paNoError ) goto error;
+    Pa_Terminate();
+    return paNoError;
+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;
+}
-- 
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