From 2e416ee0095f1bf608f849f156d564e0f45fb8ab Mon Sep 17 00:00:00 2001
From: Guenter  Geiger <ggeiger@users.sourceforge.net>
Date: Mon, 2 Feb 2004 12:18:59 +0000
Subject: merged in version_0_37_1test6

svn path=/trunk/; revision=1305
---
 pd/portaudio/pa_tests/patest_latency.c | 176 ---------------------------------
 1 file changed, 176 deletions(-)
 delete mode 100644 pd/portaudio/pa_tests/patest_latency.c

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

diff --git a/pd/portaudio/pa_tests/patest_latency.c b/pd/portaudio/pa_tests/patest_latency.c
deleted file mode 100644
index 261a005c..00000000
--- a/pd/portaudio/pa_tests/patest_latency.c
+++ /dev/null
@@ -1,176 +0,0 @@
-/*
- * $Id: patest_latency.c,v 1.1.1.1 2003-05-09 16:03:56 ggeiger Exp $
- * Hear the latency caused by big buffers.
- * Play a sine wave and change frequency based on letter input.
- *
- * Author: Phil Burk <philburk@softsynth.com>, and Darren Gibbs
- *
- * 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 OUTPUT_DEVICE       (Pa_GetDefaultOutputDeviceID())
-#define SAMPLE_RATE         (44100)
-#define FRAMES_PER_BUFFER   (64)
-
-#if 0
-#define MIN_LATENCY_MSEC    (2000)
-#define NUM_BUFFERS         ((MIN_LATENCY_MSEC * SAMPLE_RATE) / (FRAMES_PER_BUFFER * 1000))
-#else
-#define NUM_BUFFERS         (0)
-#endif
-
-#define MIN_FREQ            (100.0f)
-#define CalcPhaseIncrement(freq)  ((freq)/SAMPLE_RATE)
-#ifndef M_PI
-#define M_PI  (3.14159265)
-#endif
-#define TABLE_SIZE   (400)
-typedef struct
-{
-    float sine[TABLE_SIZE + 1]; // add one for guard point for interpolation
-    float phase_increment;
-    float left_phase;
-    float right_phase;
-}
-paTestData;
-float LookupSine( paTestData *data, float phase );
-/* Convert phase between and 1.0 to sine value
- * using linear interpolation.
- */
-float LookupSine( paTestData *data, float phase )
-{
-    float fIndex = phase*TABLE_SIZE;
-    int   index = (int) fIndex;
-    float fract = fIndex - index;
-    float lo = data->sine[index];
-    float hi = data->sine[index+1];
-    float val = lo + fract*(hi-lo);
-    return val;
-}
-/* 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;
-    int i;
-    int finished = 0;
-    (void) outTime; /* Prevent unused variable warnings. */
-    (void) inputBuffer;
-
-    for( i=0; i<framesPerBuffer; i++ )
-    {
-        *out++ = LookupSine(data, data->left_phase);  /* left */
-        *out++ = LookupSine(data, data->right_phase);  /* right */
-        data->left_phase += data->phase_increment;
-        if( data->left_phase >= 1.0f ) data->left_phase -= 1.0f;
-        data->right_phase += (data->phase_increment * 1.5f); /* fifth above */
-        if( data->right_phase >= 1.0f ) data->right_phase -= 1.0f;
-    }
-    return 0;
-}
-/*******************************************************************/
-int main(void);
-int main(void)
-{
-    PortAudioStream *stream;
-    PaError err;
-    paTestData data;
-    int i;
-    int done = 0;
-    printf("PortAudio Test: enter letter then hit ENTER. numBuffers = %d\n", NUM_BUFFERS );
-    /* initialise sinusoidal wavetable */
-    for( i=0; i<TABLE_SIZE; i++ )
-    {
-        data.sine[i] = 0.90f * (float) sin( ((double)i/(double)TABLE_SIZE) * M_PI * 2. );
-    }
-    data.sine[TABLE_SIZE] = data.sine[0]; // set guard point
-    data.left_phase = data.right_phase = 0.0;
-    data.phase_increment = CalcPhaseIncrement(MIN_FREQ);
-
-    err = Pa_Initialize();
-    if( err != paNoError ) goto error;
-    printf("PortAudio Test: output device = %d\n", OUTPUT_DEVICE );
-    err = Pa_OpenStream(
-              &stream,
-              paNoDevice,
-              0,              /* no input */
-              paFloat32,  /* 32 bit floating point input */
-              NULL,
-              OUTPUT_DEVICE,
-              2,              /* stereo output */
-              paFloat32,      /* 32 bit floating point output */
-              NULL,
-              SAMPLE_RATE,
-              FRAMES_PER_BUFFER,
-              NUM_BUFFERS,    /* number of buffers, if zero then use default minimum */
-              paClipOff|paDitherOff, /* we won't output out of range samples so don't bother clipping them */
-              patestCallback,
-              &data );
-    if( err != paNoError ) goto error;
-    err = Pa_StartStream( stream );
-    if( err != paNoError ) goto error;
-    printf("Play ASCII keyboard. Hit 'q' to stop. (Use RETURN key on Mac)\n");
-    fflush(stdout);
-    while ( !done )
-    {
-        float  freq;
-        int index;
-        char c;
-        do
-        {
-            c = getchar();
-        }
-        while( c < ' '); /* Strip white space and control chars. */
-
-        if( c == 'q' ) done = 1;
-        index = c % 26;
-        freq = MIN_FREQ + (index * 40.0);
-        data.phase_increment = CalcPhaseIncrement(freq);
-    }
-    printf("Call Pa_StopStream()\n");
-    err = Pa_StopStream( 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;
-}
-- 
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