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

1 files changed, 194 insertions, 0 deletions

diff --git a/pd/portaudio/pa_tests/patest_sine_time.c b/pd/portaudio/pa_tests/patest_sine_time.c
new file mode 100644
index 00000000..c849af0a
--- /dev/null
+++ b/pd/portaudio/pa_tests/patest_sine_time.c
@@ -0,0 +1,194 @@
+/*
+ * $Id: patest_sine_time.c,v 1.1.1.1 2003-05-09 16:03:56 ggeiger Exp $
+ * patest_sine_time.c
+ * Play a sine wave using the Portable Audio api for several seconds.
+ * Pausing in the middle.
+ * use the Pa_GetStreamTime() and Pa_IsStreamActive() calls.
+ *
+ * Authors:
+ *    Ross Bencina <rossb@audiomulch.com>
+ *    Phil Burk <philburk@softsynth.com>
+ *
+ * This program uses the PortAudio Portable Audio Library.
+ * For more information see: http://www.audiomulch.com/portaudio/
+ * 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"
+#include "pa_util.h"
+#define NUM_SECONDS   (8)
+#define SAMPLE_RATE   (44100)
+#define FRAMES_PER_BUFFER  (64)
+#define NUM_BUFFERS   (0)
+
+#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 PaTimestamp   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(   void *inputBuffer, void *outputBuffer,
+                             unsigned long framesPerBuffer,
+                             PaTimestamp outTime, 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) outTime; /* Prevent unused variable warnings. */
+    (void) inputBuffer;
+    data->outTime = outTime;\
+
+    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 )
+{
+    PaTimestamp  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 = %8.1f, outTime = %8.1f, latency = %8.1f\n",
+            streamTime, outTime, latency );
+    }
+    fflush(stdout);
+}
+
+/*******************************************************************/
+int main(void);
+int main(void)
+{
+    PaStream *stream;
+    PaError err;
+    paTestData DATA;
+    int totalSamps;
+    printf("PortAudio Test: output sine wave. SR = %d, BufSize = %d\n", SAMPLE_RATE, FRAMES_PER_BUFFER);
+    DATA.left_phase = DATA.right_phase = 0;
+    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 */
+              paFloat32,  /* 32 bit floating point input */
+              0, /* default latency */
+              NULL,
+              Pa_GetDefaultOutputDevice(), /* default output device */
+              2,          /* stereo output */
+              paFloat32,      /* 32 bit floating point output */
+              0, /* default latency */
+              NULL,
+              SAMPLE_RATE,
+              FRAMES_PER_BUFFER,            /* 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;
+    do
+    {
+        ReportStreamTime( stream, &DATA );
+        Pa_Sleep(100);
+    } while( Pa_GetStreamTime( stream ) < (totalSamps/2) );
+    
+    /* Stop sound until ENTER hit. */
+    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;
+    
+    printf("Play until sound is finished.\n"); fflush(stdout);
+    do
+    {
+        ReportStreamTime( stream, &DATA );
+        Pa_Sleep(100);
+    } while( Pa_GetStreamTime( stream ) < (totalSamps/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;
+}