diff options
author | Guenter Geiger <ggeiger@users.sourceforge.net> | 2004-02-02 12:18:59 +0000 |
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committer | Guenter Geiger <ggeiger@users.sourceforge.net> | 2004-02-02 12:18:59 +0000 |
commit | 2e416ee0095f1bf608f849f156d564e0f45fb8ab (patch) | |
tree | 9e4881e81953b434b91dbd35218d78f05b27e82e /pd/portaudio/pa_tests/patest_multi_sine.c | |
parent | ae6b5d89ea93b95c2990895077cf5e8f0bba9ad9 (diff) |
merged in version_0_37_1test6
svn path=/trunk/; revision=1305
Diffstat (limited to 'pd/portaudio/pa_tests/patest_multi_sine.c')
-rw-r--r-- | pd/portaudio/pa_tests/patest_multi_sine.c | 175 |
1 files changed, 0 insertions, 175 deletions
diff --git a/pd/portaudio/pa_tests/patest_multi_sine.c b/pd/portaudio/pa_tests/patest_multi_sine.c deleted file mode 100644 index 2b78e932..00000000 --- a/pd/portaudio/pa_tests/patest_multi_sine.c +++ /dev/null @@ -1,175 +0,0 @@ -/* - * $Id: patest_multi_sine.c,v 1.1.1.1 2003-05-09 16:03:56 ggeiger Exp $ - * patest_multi_out.c - * Play a different sine wave on each channels, - * using the Portable Audio api. - * - * 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 OUTPUT_DEVICE (Pa_GetDefaultOutputDevice()) -//#define NON_INTERLEAVED -#define SAMPLE_RATE (44100) -#define FRAMES_PER_BUFFER (0) // take what we get(256) -#define FREQ_INCR (300.0 / SAMPLE_RATE) -#define MAX_CHANNELS (64) - -#ifndef M_PI -#define M_PI (3.14159265) -#endif - -typedef struct -{ - int numChannels; - double phases[MAX_CHANNELS]; -} -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 ) -{ - float **outputs = (float**)outputBuffer; - -#ifdef NON_INTERLEAVED - paTestData *data = (paTestData*)userData; - float *out = (float*)outputBuffer; - int frameIndex, channelIndex; - int finished = 0; - (void) outTime; /* Prevent unused variable warnings. */ - (void) inputBuffer; - - for( frameIndex=0; frameIndex<(int)framesPerBuffer; frameIndex++ ) - { - for( channelIndex=0; channelIndex<data->numChannels; channelIndex++ ) - { - /* Output sine wave on every channel. */ - outputs[channelIndex][frameIndex] = (float) sin(data->phases[channelIndex]); - - /* Play each channel at a higher frequency. */ - data->phases[channelIndex] += FREQ_INCR * (4 + channelIndex); - if( data->phases[channelIndex] >= (2.0 * M_PI) ) data->phases[channelIndex] -= (2.0 * M_PI); - } - } - -#else /* interleaved version */ - - paTestData *data = (paTestData*)userData; - float *out = (float*)outputBuffer; - int frameIndex, channelIndex; - int finished = 0; - (void) outTime; /* Prevent unused variable warnings. */ - (void) inputBuffer; - - for( frameIndex=0; frameIndex<(int)framesPerBuffer; frameIndex++ ) - { - for( channelIndex=0; channelIndex<data->numChannels; channelIndex++ ) - { - /* Output sine wave on every channel. */ - *out++ = (float) sin(data->phases[channelIndex]); - - /* Play each channel at a higher frequency. */ - data->phases[channelIndex] += FREQ_INCR * (4 + channelIndex); - if( data->phases[channelIndex] >= (2.0 * M_PI) ) data->phases[channelIndex] -= (2.0 * M_PI); - } - } -#endif /* NON_INTERLEAVED */ - return 0; -} - -/*******************************************************************/ -int main(void); -int main(void) -{ - PaStream *stream; - PaError err; - const PaDeviceInfo *pdi; - paTestData data = {0}; - printf("PortAudio Test: output sine wave on each channel.\n" ); - - err = Pa_Initialize(); - if( err != paNoError ) goto error; - - pdi = Pa_GetDeviceInfo( OUTPUT_DEVICE ); - data.numChannels = pdi->maxOutputChannels; - if( data.numChannels > MAX_CHANNELS ) data.numChannels = MAX_CHANNELS; - printf("Number of Channels = %d\n", data.numChannels ); - - err = Pa_OpenStream( - &stream, - paNoDevice, /* default input device */ - 0, /* no input */ - paFloat32, /* 32 bit floating point input */ - 0, /* default input latency */ - NULL, - OUTPUT_DEVICE, - data.numChannels, -#ifdef NON_INTERLEAVED - paFloat32 | paNonInterleaved, /* 32 bit floating point output */ -#else - paFloat32, -#endif - 0, /* default output 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; - - err = Pa_StartStream( stream ); - if( err != paNoError ) goto error; - - printf("Hit ENTER to stop sound.\n"); - getchar(); - - err = Pa_StopStream( stream ); - if( err != paNoError ) goto error; - - Pa_CloseStream( stream ); - 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; -} |