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-rw-r--r--pd/portaudio/pablio/README.txt39
-rw-r--r--pd/portaudio/pablio/pablio.c307
-rw-r--r--pd/portaudio/pablio/pablio.def35
-rw-r--r--pd/portaudio/pablio/pablio.h108
-rw-r--r--pd/portaudio/pablio/pablio_pd.c335
-rw-r--r--pd/portaudio/pablio/pablio_pd.h110
-rw-r--r--pd/portaudio/pablio/ringbuffer.c199
-rw-r--r--pd/portaudio/pablio/ringbuffer.h101
-rw-r--r--pd/portaudio/pablio/ringbuffer_pd.c214
-rw-r--r--pd/portaudio/pablio/test_rw.c99
-rw-r--r--pd/portaudio/pablio/test_rw_echo.c123
-rw-r--r--pd/portaudio/pablio/test_w_saw.c108
-rw-r--r--pd/portaudio/pablio/test_w_saw8.c106
-rw-r--r--pd/portaudio/pablio/test_w_saw_pd.c108
14 files changed, 1992 insertions, 0 deletions
diff --git a/pd/portaudio/pablio/README.txt b/pd/portaudio/pablio/README.txt
new file mode 100644
index 00000000..99c7d146
--- /dev/null
+++ b/pd/portaudio/pablio/README.txt
@@ -0,0 +1,39 @@
+README for PABLIO
+Portable Audio Blocking I/O Library
+Author: Phil Burk
+
+PABLIO is a simplified interface to PortAudio that provide
+read/write style blocking I/O.
+
+Please see the .DOC file for documentation.
+
+/*
+ * More information on PortAudio at: http://www.portaudio.com
+ * Copyright (c) 1999-2000 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.
+ *
+ */
+
+
diff --git a/pd/portaudio/pablio/pablio.c b/pd/portaudio/pablio/pablio.c
new file mode 100644
index 00000000..53dec058
--- /dev/null
+++ b/pd/portaudio/pablio/pablio.c
@@ -0,0 +1,307 @@
+/*
+ * $Id: pablio.c,v 1.1.1.1 2002-07-29 17:06:16 ggeiger Exp $
+ * pablio.c
+ * Portable Audio Blocking Input/Output utility.
+ *
+ * Author: Phil Burk, http://www.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 <stdlib.h>
+#include <math.h>
+#include "portaudio.h"
+#include "ringbuffer.h"
+#include "pablio.h"
+#include <string.h>
+
+/************************************************************************/
+/******** Constants *****************************************************/
+/************************************************************************/
+
+#define FRAMES_PER_BUFFER (256)
+
+/************************************************************************/
+/******** Prototypes ****************************************************/
+/************************************************************************/
+
+static int blockingIOCallback( void *inputBuffer, void *outputBuffer,
+ unsigned long framesPerBuffer,
+ PaTimestamp outTime, void *userData );
+static PaError PABLIO_InitFIFO( RingBuffer *rbuf, long numFrames, long bytesPerFrame );
+static PaError PABLIO_TermFIFO( RingBuffer *rbuf );
+
+/************************************************************************/
+/******** Functions *****************************************************/
+/************************************************************************/
+
+/* Called from PortAudio.
+ * Read and write data only if there is room in FIFOs.
+ */
+static int blockingIOCallback( void *inputBuffer, void *outputBuffer,
+ unsigned long framesPerBuffer,
+ PaTimestamp outTime, void *userData )
+{
+ PABLIO_Stream *data = (PABLIO_Stream*)userData;
+ long numBytes = data->bytesPerFrame * framesPerBuffer;
+ (void) outTime;
+
+ /* This may get called with NULL inputBuffer during initial setup. */
+ if( inputBuffer != NULL )
+ {
+ RingBuffer_Write( &data->inFIFO, inputBuffer, numBytes );
+ }
+ if( outputBuffer != NULL )
+ {
+ int i;
+ int numRead = RingBuffer_Read( &data->outFIFO, outputBuffer, numBytes );
+ /* Zero out remainder of buffer if we run out of data. */
+ for( i=numRead; i<numBytes; i++ )
+ {
+ ((char *)outputBuffer)[i] = 0;
+ }
+ }
+
+ return 0;
+}
+
+/* Allocate buffer. */
+static PaError PABLIO_InitFIFO( RingBuffer *rbuf, long numFrames, long bytesPerFrame )
+{
+ long numBytes = numFrames * bytesPerFrame;
+ char *buffer = (char *) malloc( numBytes );
+ if( buffer == NULL ) return paInsufficientMemory;
+ memset( buffer, 0, numBytes );
+ return (PaError) RingBuffer_Init( rbuf, numBytes, buffer );
+}
+
+/* Free buffer. */
+static PaError PABLIO_TermFIFO( RingBuffer *rbuf )
+{
+ if( rbuf->buffer ) free( rbuf->buffer );
+ rbuf->buffer = NULL;
+ return paNoError;
+}
+
+/************************************************************
+ * Write data to ring buffer.
+ * Will not return until all the data has been written.
+ */
+long WriteAudioStream( PABLIO_Stream *aStream, void *data, long numFrames )
+{
+ long bytesWritten;
+ char *p = (char *) data;
+ long numBytes = aStream->bytesPerFrame * numFrames;
+ while( numBytes > 0)
+ {
+ bytesWritten = RingBuffer_Write( &aStream->outFIFO, p, numBytes );
+ numBytes -= bytesWritten;
+ p += bytesWritten;
+ if( numBytes > 0) Pa_Sleep(10);
+ }
+ return numFrames;
+}
+
+/************************************************************
+ * Read data from ring buffer.
+ * Will not return until all the data has been read.
+ */
+long ReadAudioStream( PABLIO_Stream *aStream, void *data, long numFrames )
+{
+ long bytesRead;
+ char *p = (char *) data;
+ long numBytes = aStream->bytesPerFrame * numFrames;
+ while( numBytes > 0)
+ {
+ bytesRead = RingBuffer_Read( &aStream->inFIFO, p, numBytes );
+ numBytes -= bytesRead;
+ p += bytesRead;
+ if( numBytes > 0) Pa_Sleep(10);
+ }
+ return numFrames;
+}
+
+/************************************************************
+ * Return the number of frames that could be written to the stream without
+ * having to wait.
+ */
+long GetAudioStreamWriteable( PABLIO_Stream *aStream )
+{
+ int bytesEmpty = RingBuffer_GetWriteAvailable( &aStream->outFIFO );
+ return bytesEmpty / aStream->bytesPerFrame;
+}
+
+/************************************************************
+ * Return the number of frames that are available to be read from the
+ * stream without having to wait.
+ */
+long GetAudioStreamReadable( PABLIO_Stream *aStream )
+{
+ int bytesFull = RingBuffer_GetReadAvailable( &aStream->inFIFO );
+ return bytesFull / aStream->bytesPerFrame;
+}
+
+/************************************************************/
+static unsigned long RoundUpToNextPowerOf2( unsigned long n )
+{
+ long numBits = 0;
+ if( ((n-1) & n) == 0) return n; /* Already Power of two. */
+ while( n > 0 )
+ {
+ n= n>>1;
+ numBits++;
+ }
+ return (1<<numBits);
+}
+
+/************************************************************
+ * Opens a PortAudio stream with default characteristics.
+ * Allocates PABLIO_Stream structure.
+ *
+ * flags parameter can be an ORed combination of:
+ * PABLIO_READ, PABLIO_WRITE, or PABLIO_READ_WRITE,
+ * and either PABLIO_MONO or PABLIO_STEREO
+ */
+PaError OpenAudioStream( PABLIO_Stream **rwblPtr, double sampleRate,
+ PaSampleFormat format, long flags )
+{
+ long bytesPerSample;
+ long doRead = 0;
+ long doWrite = 0;
+ PaError err;
+ PABLIO_Stream *aStream;
+ long minNumBuffers;
+ long numFrames;
+
+ /* Allocate PABLIO_Stream structure for caller. */
+ aStream = (PABLIO_Stream *) malloc( sizeof(PABLIO_Stream) );
+ if( aStream == NULL ) return paInsufficientMemory;
+ memset( aStream, 0, sizeof(PABLIO_Stream) );
+
+ /* Determine size of a sample. */
+ bytesPerSample = Pa_GetSampleSize( format );
+ if( bytesPerSample < 0 )
+ {
+ err = (PaError) bytesPerSample;
+ goto error;
+ }
+ aStream->samplesPerFrame = ((flags&PABLIO_MONO) != 0) ? 1 : 2;
+ aStream->bytesPerFrame = bytesPerSample * aStream->samplesPerFrame;
+
+ /* Initialize PortAudio */
+ err = Pa_Initialize();
+ if( err != paNoError ) goto error;
+
+ /* Warning: numFrames must be larger than amount of data processed per interrupt
+ * inside PA to prevent glitches. Just to be safe, adjust size upwards.
+ */
+ minNumBuffers = 2 * Pa_GetMinNumBuffers( FRAMES_PER_BUFFER, sampleRate );
+ numFrames = minNumBuffers * FRAMES_PER_BUFFER;
+ numFrames = RoundUpToNextPowerOf2( numFrames );
+
+ /* Initialize Ring Buffers */
+ doRead = ((flags & PABLIO_READ) != 0);
+ doWrite = ((flags & PABLIO_WRITE) != 0);
+ if(doRead)
+ {
+ err = PABLIO_InitFIFO( &aStream->inFIFO, numFrames, aStream->bytesPerFrame );
+ if( err != paNoError ) goto error;
+ }
+ if(doWrite)
+ {
+ long numBytes;
+ err = PABLIO_InitFIFO( &aStream->outFIFO, numFrames, aStream->bytesPerFrame );
+ if( err != paNoError ) goto error;
+ /* Make Write FIFO appear full initially. */
+ numBytes = RingBuffer_GetWriteAvailable( &aStream->outFIFO );
+ RingBuffer_AdvanceWriteIndex( &aStream->outFIFO, numBytes );
+ }
+
+ /* Open a PortAudio stream that we will use to communicate with the underlying
+ * audio drivers. */
+ err = Pa_OpenStream(
+ &aStream->stream,
+ (doRead ? Pa_GetDefaultInputDeviceID() : paNoDevice),
+ (doRead ? aStream->samplesPerFrame : 0 ),
+ format,
+ NULL,
+ (doWrite ? Pa_GetDefaultOutputDeviceID() : paNoDevice),
+ (doWrite ? aStream->samplesPerFrame : 0 ),
+ format,
+ NULL,
+ sampleRate,
+ FRAMES_PER_BUFFER,
+ minNumBuffers,
+ paClipOff, /* we won't output out of range samples so don't bother clipping them */
+ blockingIOCallback,
+ aStream );
+ if( err != paNoError ) goto error;
+
+ err = Pa_StartStream( aStream->stream );
+ if( err != paNoError ) goto error;
+
+ *rwblPtr = aStream;
+ return paNoError;
+
+error:
+ CloseAudioStream( aStream );
+ *rwblPtr = NULL;
+ return err;
+}
+
+/************************************************************/
+PaError CloseAudioStream( PABLIO_Stream *aStream )
+{
+ PaError err;
+ int bytesEmpty;
+ int byteSize = aStream->outFIFO.bufferSize;
+
+ /* If we are writing data, make sure we play everything written. */
+ if( byteSize > 0 )
+ {
+ bytesEmpty = RingBuffer_GetWriteAvailable( &aStream->outFIFO );
+ while( bytesEmpty < byteSize )
+ {
+ Pa_Sleep( 10 );
+ bytesEmpty = RingBuffer_GetWriteAvailable( &aStream->outFIFO );
+ }
+ }
+
+ err = Pa_StopStream( aStream->stream );
+ if( err != paNoError ) goto error;
+ err = Pa_CloseStream( aStream->stream );
+ if( err != paNoError ) goto error;
+ Pa_Terminate();
+
+error:
+ PABLIO_TermFIFO( &aStream->inFIFO );
+ PABLIO_TermFIFO( &aStream->outFIFO );
+ free( aStream );
+ return err;
+}
diff --git a/pd/portaudio/pablio/pablio.def b/pd/portaudio/pablio/pablio.def
new file mode 100644
index 00000000..a10f9529
--- /dev/null
+++ b/pd/portaudio/pablio/pablio.def
@@ -0,0 +1,35 @@
+LIBRARY PABLIO
+DESCRIPTION 'PABLIO Portable Audio Blocking I/O'
+
+EXPORTS
+ ; Explicit exports can go here
+ Pa_Initialize @1
+ Pa_Terminate @2
+ Pa_GetHostError @3
+ Pa_GetErrorText @4
+ Pa_CountDevices @5
+ Pa_GetDefaultInputDeviceID @6
+ Pa_GetDefaultOutputDeviceID @7
+ Pa_GetDeviceInfo @8
+ Pa_OpenStream @9
+ Pa_OpenDefaultStream @10
+ Pa_CloseStream @11
+ Pa_StartStream @12
+ Pa_StopStream @13
+ Pa_StreamActive @14
+ Pa_StreamTime @15
+ Pa_GetCPULoad @16
+ Pa_GetMinNumBuffers @17
+ Pa_Sleep @18
+
+ OpenAudioStream @19
+ CloseAudioStream @20
+ WriteAudioStream @21
+ ReadAudioStream @22
+
+ Pa_GetSampleSize @23
+
+ ;123456789012345678901234567890123456
+ ;000000000111111111122222222223333333
+
+
diff --git a/pd/portaudio/pablio/pablio.h b/pd/portaudio/pablio/pablio.h
new file mode 100644
index 00000000..9060c560
--- /dev/null
+++ b/pd/portaudio/pablio/pablio.h
@@ -0,0 +1,108 @@
+#ifndef _PABLIO_H
+#define _PABLIO_H
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif /* __cplusplus */
+
+/*
+ * $Id: pablio.h,v 1.1.1.1 2002-07-29 17:06:17 ggeiger Exp $
+ * PABLIO.h
+ * Portable Audio Blocking read/write utility.
+ *
+ * Author: Phil Burk, http://www.softsynth.com/portaudio/
+ *
+ * Include file for PABLIO, the Portable Audio Blocking I/O Library.
+ * PABLIO is built on top of PortAudio, the 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 <stdlib.h>
+#include <math.h>
+#include "portaudio.h"
+#include "ringbuffer.h"
+#include <string.h>
+
+typedef struct
+{
+ RingBuffer inFIFO;
+ RingBuffer outFIFO;
+ PortAudioStream *stream;
+ int bytesPerFrame;
+ int samplesPerFrame;
+}
+PABLIO_Stream;
+
+/* Values for flags for OpenAudioStream(). */
+#define PABLIO_READ (1<<0)
+#define PABLIO_WRITE (1<<1)
+#define PABLIO_READ_WRITE (PABLIO_READ|PABLIO_WRITE)
+#define PABLIO_MONO (1<<2)
+#define PABLIO_STEREO (1<<3)
+
+/************************************************************
+ * Write data to ring buffer.
+ * Will not return until all the data has been written.
+ */
+long WriteAudioStream( PABLIO_Stream *aStream, void *data, long numFrames );
+
+/************************************************************
+ * Read data from ring buffer.
+ * Will not return until all the data has been read.
+ */
+long ReadAudioStream( PABLIO_Stream *aStream, void *data, long numFrames );
+
+/************************************************************
+ * Return the number of frames that could be written to the stream without
+ * having to wait.
+ */
+long GetAudioStreamWriteable( PABLIO_Stream *aStream );
+
+/************************************************************
+ * Return the number of frames that are available to be read from the
+ * stream without having to wait.
+ */
+long GetAudioStreamReadable( PABLIO_Stream *aStream );
+
+/************************************************************
+ * Opens a PortAudio stream with default characteristics.
+ * Allocates PABLIO_Stream structure.
+ *
+ * flags parameter can be an ORed combination of:
+ * PABLIO_READ, PABLIO_WRITE, or PABLIO_READ_WRITE,
+ */
+PaError OpenAudioStream( PABLIO_Stream **rwblPtr, double sampleRate,
+ PaSampleFormat format, long flags );
+
+PaError CloseAudioStream( PABLIO_Stream *aStream );
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+#endif /* _PABLIO_H */
diff --git a/pd/portaudio/pablio/pablio_pd.c b/pd/portaudio/pablio/pablio_pd.c
new file mode 100644
index 00000000..e7105e9b
--- /dev/null
+++ b/pd/portaudio/pablio/pablio_pd.c
@@ -0,0 +1,335 @@
+/*
+ * $Id: pablio_pd.c,v 1.1.1.1 2002-07-29 17:06:17 ggeiger Exp $
+ * pablio.c
+ * Portable Audio Blocking Input/Output utility.
+ *
+ * Author: Phil Burk, http://www.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.
+ *
+ */
+
+ /* changes by Miller Puckette to support Pd: device selection,
+ settable audio buffer size, and settable number of channels.
+ LATER also fix it to poll for input and output fifo fill points. */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include "portaudio.h"
+#include "ringbuffer.h"
+#include "pablio_pd.h" /* MSP */
+#include <string.h>
+
+ /* MSP -- FRAMES_PER_BUFFER constant removed */
+
+/************************************************************************/
+/******** Prototypes ****************************************************/
+/************************************************************************/
+
+static int blockingIOCallback( void *inputBuffer, void *outputBuffer,
+ unsigned long framesPerBuffer,
+ PaTimestamp outTime, void *userData );
+static PaError PABLIO_InitFIFO( RingBuffer *rbuf, long numFrames, long bytesPerFrame );
+static PaError PABLIO_TermFIFO( RingBuffer *rbuf );
+
+/************************************************************************/
+/******** Functions *****************************************************/
+/************************************************************************/
+
+/* Called from PortAudio.
+ * Read and write data only if there is room in FIFOs.
+ */
+static int blockingIOCallback( void *inputBuffer, void *outputBuffer,
+ unsigned long framesPerBuffer,
+ PaTimestamp outTime, void *userData )
+{
+ PABLIO_Stream *data = (PABLIO_Stream*)userData;
+ long numBytes = data->bytesPerFrame * framesPerBuffer;
+ (void) outTime;
+
+ /* This may get called with NULL inputBuffer during initial setup. */
+ if( inputBuffer != NULL )
+ {
+ RingBuffer_Write( &data->inFIFO, inputBuffer, numBytes );
+ }
+ if( outputBuffer != NULL )
+ {
+ int i;
+ int numRead = RingBuffer_Read( &data->outFIFO, outputBuffer, numBytes );
+ /* Zero out remainder of buffer if we run out of data. */
+ for( i=numRead; i<numBytes; i++ )
+ {
+ ((char *)outputBuffer)[i] = 0;
+ }
+ }
+
+ return 0;
+}
+
+/* Allocate buffer. */
+static PaError PABLIO_InitFIFO( RingBuffer *rbuf, long numFrames, long bytesPerFrame )
+{
+ long numBytes = numFrames * bytesPerFrame;
+ char *buffer = (char *) malloc( numBytes );
+ if( buffer == NULL ) return paInsufficientMemory;
+ memset( buffer, 0, numBytes );
+ return (PaError) RingBuffer_Init( rbuf, numBytes, buffer );
+}
+
+/* Free buffer. */
+static PaError PABLIO_TermFIFO( RingBuffer *rbuf )
+{
+ if( rbuf->buffer ) free( rbuf->buffer );
+ rbuf->buffer = NULL;
+ return paNoError;
+}
+
+/************************************************************
+ * Write data to ring buffer.
+ * Will not return until all the data has been written.
+ */
+long WriteAudioStream( PABLIO_Stream *aStream, void *data, long numFrames )
+{
+ long bytesWritten;
+ char *p = (char *) data;
+ long numBytes = aStream->bytesPerFrame * numFrames;
+ while( numBytes > 0)
+ {
+ bytesWritten = RingBuffer_Write( &aStream->outFIFO, p, numBytes );
+ numBytes -= bytesWritten;
+ p += bytesWritten;
+ if( numBytes > 0) Pa_Sleep(10);
+ }
+ return numFrames;
+}
+
+/************************************************************
+ * Read data from ring buffer.
+ * Will not return until all the data has been read.
+ */
+long ReadAudioStream( PABLIO_Stream *aStream, void *data, long numFrames )
+{
+ long bytesRead;
+ char *p = (char *) data;
+ long numBytes = aStream->bytesPerFrame * numFrames;
+ while( numBytes > 0)
+ {
+ bytesRead = RingBuffer_Read( &aStream->inFIFO, p, numBytes );
+ numBytes -= bytesRead;
+ p += bytesRead;
+ if( numBytes > 0) Pa_Sleep(10);
+ }
+ return numFrames;
+}
+
+/************************************************************
+ * Return the number of frames that could be written to the stream without
+ * having to wait.
+ */
+long GetAudioStreamWriteable( PABLIO_Stream *aStream )
+{
+ int bytesEmpty = RingBuffer_GetWriteAvailable( &aStream->outFIFO );
+ return bytesEmpty / aStream->bytesPerFrame;
+}
+
+/************************************************************
+ * Return the number of frames that are available to be read from the
+ * stream without having to wait.
+ */
+long GetAudioStreamReadable( PABLIO_Stream *aStream )
+{
+ int bytesFull = RingBuffer_GetReadAvailable( &aStream->inFIFO );
+ return bytesFull / aStream->bytesPerFrame;
+}
+
+/************************************************************/
+static unsigned long RoundUpToNextPowerOf2( unsigned long n )
+{
+ long numBits = 0;
+ if( ((n-1) & n) == 0) return n; /* Already Power of two. */
+ while( n > 0 )
+ {
+ n= n>>1;
+ numBits++;
+ }
+ return (1<<numBits);
+}
+
+/************************************************************
+ * Opens a PortAudio stream with default characteristics.
+ * Allocates PABLIO_Stream structure.
+ *
+ * flags parameter can be an ORed combination of:
+ * PABLIO_READ, PABLIO_WRITE, or PABLIO_READ_WRITE
+ */
+PaError OpenAudioStream( PABLIO_Stream **rwblPtr, double sampleRate,
+ PaSampleFormat format, long flags, int nchannels,
+ int framesperbuf, int nbuffers,
+ int indeviceno, int outdeviceno) /* MSP */
+{
+ long bytesPerSample;
+ long doRead = 0;
+ long doWrite = 0;
+ PaError err;
+ PABLIO_Stream *aStream;
+ long minNumBuffers;
+ long numFrames;
+
+ /* fprintf(stderr,
+ "open %lf fmt %d flags %d ch: %d fperbuf: %d nbuf: %d devs: %d %d\n",
+ sampleRate, format, flags, nchannels,
+ framesperbuf, nbuffers, indeviceno, outdeviceno); */
+
+ if (indeviceno < 0) /* MSP... */
+ {
+ indeviceno = Pa_GetDefaultInputDeviceID();
+ fprintf(stderr, "using default input device number: %d\n", indeviceno);
+ }
+ if (outdeviceno < 0)
+ {
+ outdeviceno = Pa_GetDefaultOutputDeviceID();
+ fprintf(stderr, "using default output device number: %d\n", outdeviceno);
+ }
+ nbuffers = RoundUpToNextPowerOf2(nbuffers);
+ fprintf(stderr, "nchan %d, flags %d, bufs %d, framesperbuf %d\n",
+ nchannels, flags, nbuffers, framesperbuf);
+ /* ...MSP */
+
+ /* Allocate PABLIO_Stream structure for caller. */
+ aStream = (PABLIO_Stream *) malloc( sizeof(PABLIO_Stream) );
+ if( aStream == NULL ) return paInsufficientMemory;
+ memset( aStream, 0, sizeof(PABLIO_Stream) );
+
+ /* Determine size of a sample. */
+ bytesPerSample = Pa_GetSampleSize( format );
+ if( bytesPerSample < 0 )
+ {
+ err = (PaError) bytesPerSample;
+ goto error;
+ }
+ aStream->samplesPerFrame = nchannels; /* MSP */
+ aStream->bytesPerFrame = bytesPerSample * aStream->samplesPerFrame;
+
+ /* Initialize PortAudio */
+ err = Pa_Initialize();
+ if( err != paNoError ) goto error;
+
+/* Warning: numFrames must be larger than amount of data processed per
+ interrupt inside PA to prevent glitches. */ /* MSP */
+ minNumBuffers = Pa_GetMinNumBuffers(framesperbuf, sampleRate);
+ if (minNumBuffers > nbuffers)
+ fprintf(stderr,
+ "warning: number of buffers %d less than recommended minimum %d\n",
+ (int)nbuffers, (int)minNumBuffers);
+ numFrames = nbuffers * framesperbuf;
+
+ /* Initialize Ring Buffers */
+ doRead = ((flags & PABLIO_READ) != 0);
+ doWrite = ((flags & PABLIO_WRITE) != 0);
+ if(doRead)
+ {
+ err = PABLIO_InitFIFO( &aStream->inFIFO, numFrames, aStream->bytesPerFrame );
+ if( err != paNoError ) goto error;
+ }
+ if(doWrite)
+ {
+ long numBytes;
+ err = PABLIO_InitFIFO( &aStream->outFIFO, numFrames, aStream->bytesPerFrame );
+ if( err != paNoError ) goto error;
+ /* Make Write FIFO appear full initially. */
+ numBytes = RingBuffer_GetWriteAvailable( &aStream->outFIFO );
+ RingBuffer_AdvanceWriteIndex( &aStream->outFIFO, numBytes );
+ }
+
+ /* Open a PortAudio stream that we will use to communicate with the underlying
+ * audio drivers. */
+ err = Pa_OpenStream(
+ &aStream->stream,
+ (doRead ? indeviceno : paNoDevice), /* MSP */
+ (doRead ? aStream->samplesPerFrame : 0 ),
+ format,
+ NULL,
+ (doWrite ? outdeviceno : paNoDevice), /* MSP */
+ (doWrite ? aStream->samplesPerFrame : 0 ),
+ format,
+ NULL,
+ sampleRate,
+ framesperbuf, /* MSP */
+ nbuffers, /* MSP */
+ paNoFlag, /* MSP -- portaudio will clip for us */
+ blockingIOCallback,
+ aStream );
+ if( err != paNoError ) goto error;
+
+ err = Pa_StartStream( aStream->stream );
+ if( err != paNoError ) /* MSP */
+ {
+ fprintf(stderr, "Pa_StartStream failed; closing audio stream...\n");
+ CloseAudioStream( aStream );
+ goto error;
+ }
+
+ *rwblPtr = aStream;
+ return paNoError;
+
+error:
+ *rwblPtr = NULL;
+ return err;
+}
+
+/************************************************************/
+PaError CloseAudioStream( PABLIO_Stream *aStream )
+{
+ PaError err;
+ int bytesEmpty;
+ int byteSize = aStream->outFIFO.bufferSize;
+
+ /* If we are writing data, make sure we play everything written. */
+ if( byteSize > 0 )
+ {
+ bytesEmpty = RingBuffer_GetWriteAvailable( &aStream->outFIFO );
+ while( bytesEmpty < byteSize )
+ {
+ Pa_Sleep( 10 );
+ bytesEmpty = RingBuffer_GetWriteAvailable( &aStream->outFIFO );
+ }
+ }
+
+ err = Pa_StopStream( aStream->stream );
+ if( err != paNoError ) goto error;
+ err = Pa_CloseStream( aStream->stream );
+ if( err != paNoError ) goto error;
+ Pa_Terminate();
+
+error:
+ PABLIO_TermFIFO( &aStream->inFIFO );
+ PABLIO_TermFIFO( &aStream->outFIFO );
+ free( aStream );
+ return err;
+}
diff --git a/pd/portaudio/pablio/pablio_pd.h b/pd/portaudio/pablio/pablio_pd.h
new file mode 100644
index 00000000..b87b9f5a
--- /dev/null
+++ b/pd/portaudio/pablio/pablio_pd.h
@@ -0,0 +1,110 @@
+#ifndef _PABLIO_H
+#define _PABLIO_H
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif /* __cplusplus */
+
+/*
+ * $Id: pablio_pd.h,v 1.1.1.1 2002-07-29 17:06:17 ggeiger Exp $
+ * PABLIO.h
+ * Portable Audio Blocking read/write utility.
+ *
+ * Author: Phil Burk, http://www.softsynth.com/portaudio/
+ *
+ * Include file for PABLIO, the Portable Audio Blocking I/O Library.
+ * PABLIO is built on top of PortAudio, the 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 <stdlib.h>
+#include <math.h>
+#include "portaudio.h"
+#include "ringbuffer.h"
+#include <string.h>
+
+typedef struct
+{
+ RingBuffer inFIFO;
+ RingBuffer outFIFO;
+ PortAudioStream *stream;
+ int bytesPerFrame;
+ int samplesPerFrame;
+}
+PABLIO_Stream;
+
+/* Values for flags for OpenAudioStream(). */
+#define PABLIO_READ (1<<0)
+#define PABLIO_WRITE (1<<1)
+#define PABLIO_READ_WRITE (PABLIO_READ|PABLIO_WRITE)
+#define PABLIO_MONO (1<<2)
+#define PABLIO_STEREO (1<<3)
+
+/************************************************************
+ * Write data to ring buffer.
+ * Will not return until all the data has been written.
+ */
+long WriteAudioStream( PABLIO_Stream *aStream, void *data, long numFrames );
+
+/************************************************************
+ * Read data from ring buffer.
+ * Will not return until all the data has been read.
+ */
+long ReadAudioStream( PABLIO_Stream *aStream, void *data, long numFrames );
+
+/************************************************************
+ * Return the number of frames that could be written to the stream without
+ * having to wait.
+ */
+long GetAudioStreamWriteable( PABLIO_Stream *aStream );
+
+/************************************************************
+ * Return the number of frames that are available to be read from the
+ * stream without having to wait.
+ */
+long GetAudioStreamReadable( PABLIO_Stream *aStream );
+
+/************************************************************
+ * Opens a PortAudio stream with default characteristics.
+ * Allocates PABLIO_Stream structure.
+ *
+ * flags parameter can be an ORed combination of:
+ * PABLIO_READ, PABLIO_WRITE, or PABLIO_READ_WRITE,
+ */
+PaError OpenAudioStream( PABLIO_Stream **rwblPtr, double sampleRate,
+ PaSampleFormat format, long flags, int nchannels,
+ int framesperbuf, int nbuffers,
+ int indeviceno, int outdeviceno); /* MSP */
+
+PaError CloseAudioStream( PABLIO_Stream *aStream );
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+#endif /* _PABLIO_H */
diff --git a/pd/portaudio/pablio/ringbuffer.c b/pd/portaudio/pablio/ringbuffer.c
new file mode 100644
index 00000000..b8cc691f
--- /dev/null
+++ b/pd/portaudio/pablio/ringbuffer.c
@@ -0,0 +1,199 @@
+/*
+ * $Id: ringbuffer.c,v 1.1.1.1 2002-07-29 17:06:17 ggeiger Exp $
+ * ringbuffer.c
+ * Ring Buffer utility..
+ *
+ * Author: Phil Burk, http://www.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 <stdlib.h>
+#include <math.h>
+#include "ringbuffer.h"
+#include <string.h>
+
+/***************************************************************************
+ * Initialize FIFO.
+ * numBytes must be power of 2, returns -1 if not.
+ */
+long RingBuffer_Init( RingBuffer *rbuf, long numBytes, void *dataPtr )
+{
+ if( ((numBytes-1) & numBytes) != 0) return -1; /* Not Power of two. */
+ rbuf->bufferSize = numBytes;
+ rbuf->buffer = (char *)dataPtr;
+ RingBuffer_Flush( rbuf );
+ rbuf->bigMask = (numBytes*2)-1;
+ rbuf->smallMask = (numBytes)-1;
+ return 0;
+}
+/***************************************************************************
+** Return number of bytes available for reading. */
+long RingBuffer_GetReadAvailable( RingBuffer *rbuf )
+{
+ return ( (rbuf->writeIndex - rbuf->readIndex) & rbuf->bigMask );
+}
+/***************************************************************************
+** Return number of bytes available for writing. */
+long RingBuffer_GetWriteAvailable( RingBuffer *rbuf )
+{
+ return ( rbuf->bufferSize - RingBuffer_GetReadAvailable(rbuf));
+}
+
+/***************************************************************************
+** Clear buffer. Should only be called when buffer is NOT being read. */
+void RingBuffer_Flush( RingBuffer *rbuf )
+{
+ rbuf->writeIndex = rbuf->readIndex = 0;
+}
+
+/***************************************************************************
+** Get address of region(s) to which we can write data.
+** If the region is contiguous, size2 will be zero.
+** If non-contiguous, size2 will be the size of second region.
+** Returns room available to be written or numBytes, whichever is smaller.
+*/
+long RingBuffer_GetWriteRegions( RingBuffer *rbuf, long numBytes,
+ void **dataPtr1, long *sizePtr1,
+ void **dataPtr2, long *sizePtr2 )
+{
+ long index;
+ long available = RingBuffer_GetWriteAvailable( rbuf );
+ if( numBytes > available ) numBytes = available;
+ /* Check to see if write is not contiguous. */
+ index = rbuf->writeIndex & rbuf->smallMask;
+ if( (index + numBytes) > rbuf->bufferSize )
+ {
+ /* Write data in two blocks that wrap the buffer. */
+ long firstHalf = rbuf->bufferSize - index;
+ *dataPtr1 = &rbuf->buffer[index];
+ *sizePtr1 = firstHalf;
+ *dataPtr2 = &rbuf->buffer[0];
+ *sizePtr2 = numBytes - firstHalf;
+ }
+ else
+ {
+ *dataPtr1 = &rbuf->buffer[index];
+ *sizePtr1 = numBytes;
+ *dataPtr2 = NULL;
+ *sizePtr2 = 0;
+ }
+ return numBytes;
+}
+
+
+/***************************************************************************
+*/
+long RingBuffer_AdvanceWriteIndex( RingBuffer *rbuf, long numBytes )
+{
+ return rbuf->writeIndex = (rbuf->writeIndex + numBytes) & rbuf->bigMask;
+}
+
+/***************************************************************************
+** Get address of region(s) from which we can read data.
+** If the region is contiguous, size2 will be zero.
+** If non-contiguous, size2 will be the size of second region.
+** Returns room available to be written or numBytes, whichever is smaller.
+*/
+long RingBuffer_GetReadRegions( RingBuffer *rbuf, long numBytes,
+ void **dataPtr1, long *sizePtr1,
+ void **dataPtr2, long *sizePtr2 )
+{
+ long index;
+ long available = RingBuffer_GetReadAvailable( rbuf );
+ if( numBytes > available ) numBytes = available;
+ /* Check to see if read is not contiguous. */
+ index = rbuf->readIndex & rbuf->smallMask;
+ if( (index + numBytes) > rbuf->bufferSize )
+ {
+ /* Write data in two blocks that wrap the buffer. */
+ long firstHalf = rbuf->bufferSize - index;
+ *dataPtr1 = &rbuf->buffer[index];
+ *sizePtr1 = firstHalf;
+ *dataPtr2 = &rbuf->buffer[0];
+ *sizePtr2 = numBytes - firstHalf;
+ }
+ else
+ {
+ *dataPtr1 = &rbuf->buffer[index];
+ *sizePtr1 = numBytes;
+ *dataPtr2 = NULL;
+ *sizePtr2 = 0;
+ }
+ return numBytes;
+}
+/***************************************************************************
+*/
+long RingBuffer_AdvanceReadIndex( RingBuffer *rbuf, long numBytes )
+{
+ return rbuf->readIndex = (rbuf->readIndex + numBytes) & rbuf->bigMask;
+}
+
+/***************************************************************************
+** Return bytes written. */
+long RingBuffer_Write( RingBuffer *rbuf, void *data, long numBytes )
+{
+ long size1, size2, numWritten;
+ void *data1, *data2;
+ numWritten = RingBuffer_GetWriteRegions( rbuf, numBytes, &data1, &size1, &data2, &size2 );
+ if( size2 > 0 )
+ {
+
+ memcpy( data1, data, size1 );
+ data = ((char *)data) + size1;
+ memcpy( data2, data, size2 );
+ }
+ else
+ {
+ memcpy( data1, data, size1 );
+ }
+ RingBuffer_AdvanceWriteIndex( rbuf, numWritten );
+ return numWritten;
+}
+
+/***************************************************************************
+** Return bytes read. */
+long RingBuffer_Read( RingBuffer *rbuf, void *data, long numBytes )
+{
+ long size1, size2, numRead;
+ void *data1, *data2;
+ numRead = RingBuffer_GetReadRegions( rbuf, numBytes, &data1, &size1, &data2, &size2 );
+ if( size2 > 0 )
+ {
+ memcpy( data, data1, size1 );
+ data = ((char *)data) + size1;
+ memcpy( data, data2, size2 );
+ }
+ else
+ {
+ memcpy( data, data1, size1 );
+ }
+ RingBuffer_AdvanceReadIndex( rbuf, numRead );
+ return numRead;
+}
diff --git a/pd/portaudio/pablio/ringbuffer.h b/pd/portaudio/pablio/ringbuffer.h
new file mode 100644
index 00000000..1bf78e3a
--- /dev/null
+++ b/pd/portaudio/pablio/ringbuffer.h
@@ -0,0 +1,101 @@
+#ifndef _RINGBUFFER_H
+#define _RINGBUFFER_H
+#ifdef __cplusplus
+extern "C"
+{
+#endif /* __cplusplus */
+
+/*
+ * $Id: ringbuffer.h,v 1.1.1.1 2002-07-29 17:06:17 ggeiger Exp $
+ * ringbuffer.h
+ * Ring Buffer utility..
+ *
+ * Author: Phil Burk, http://www.softsynth.com
+ *
+ * This program is distributed with 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 <stdlib.h>
+#include <math.h>
+#include "ringbuffer.h"
+#include <string.h>
+
+typedef struct
+{
+ long bufferSize; /* Number of bytes in FIFO. Power of 2. Set by RingBuffer_Init. */
+ long writeIndex; /* Index of next writable byte. Set by RingBuffer_AdvanceWriteIndex. */
+ long readIndex; /* Index of next readable byte. Set by RingBuffer_AdvanceReadIndex. */
+ long bigMask; /* Used for wrapping indices with extra bit to distinguish full/empty. */
+ long smallMask; /* Used for fitting indices to buffer. */
+ char *buffer;
+}
+RingBuffer;
+/*
+ * Initialize Ring Buffer.
+ * numBytes must be power of 2, returns -1 if not.
+ */
+long RingBuffer_Init( RingBuffer *rbuf, long numBytes, void *dataPtr );
+
+/* Clear buffer. Should only be called when buffer is NOT being read. */
+void RingBuffer_Flush( RingBuffer *rbuf );
+
+/* Return number of bytes available for writing. */
+long RingBuffer_GetWriteAvailable( RingBuffer *rbuf );
+/* Return number of bytes available for read. */
+long RingBuffer_GetReadAvailable( RingBuffer *rbuf );
+/* Return bytes written. */
+long RingBuffer_Write( RingBuffer *rbuf, void *data, long numBytes );
+/* Return bytes read. */
+long RingBuffer_Read( RingBuffer *rbuf, void *data, long numBytes );
+
+/* Get address of region(s) to which we can write data.
+** If the region is contiguous, size2 will be zero.
+** If non-contiguous, size2 will be the size of second region.
+** Returns room available to be written or numBytes, whichever is smaller.
+*/
+long RingBuffer_GetWriteRegions( RingBuffer *rbuf, long numBytes,
+ void **dataPtr1, long *sizePtr1,
+ void **dataPtr2, long *sizePtr2 );
+long RingBuffer_AdvanceWriteIndex( RingBuffer *rbuf, long numBytes );
+
+/* Get address of region(s) from which we can read data.
+** If the region is contiguous, size2 will be zero.
+** If non-contiguous, size2 will be the size of second region.
+** Returns room available to be written or numBytes, whichever is smaller.
+*/
+long RingBuffer_GetReadRegions( RingBuffer *rbuf, long numBytes,
+ void **dataPtr1, long *sizePtr1,
+ void **dataPtr2, long *sizePtr2 );
+
+long RingBuffer_AdvanceReadIndex( RingBuffer *rbuf, long numBytes );
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+#endif /* _RINGBUFFER_H */
diff --git a/pd/portaudio/pablio/ringbuffer_pd.c b/pd/portaudio/pablio/ringbuffer_pd.c
new file mode 100644
index 00000000..16890d65
--- /dev/null
+++ b/pd/portaudio/pablio/ringbuffer_pd.c
@@ -0,0 +1,214 @@
+/*
+ * $Id: ringbuffer_pd.c,v 1.1.1.1 2002-07-29 17:06:17 ggeiger Exp $
+ * ringbuffer.c
+ * Ring Buffer utility..
+ *
+ * Author: Phil Burk, http://www.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.
+ *
+ */
+/*
+ * modified 2002/07/13 by olaf.matthes@gmx.de to allow any number if channels
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include "ringbuffer.h"
+#include <string.h>
+
+/***************************************************************************
+ * Initialize FIFO.
+ */
+long RingBuffer_Init( RingBuffer *rbuf, long numBytes, void *dataPtr )
+{
+ rbuf->bufferSize = numBytes;
+ rbuf->buffer = (char *)dataPtr;
+ RingBuffer_Flush( rbuf );
+ return 0;
+}
+/***************************************************************************
+** Return number of bytes available for reading. */
+long RingBuffer_GetReadAvailable( RingBuffer *rbuf )
+{
+ long ret = (rbuf->writeIndex - rbuf->readIndex) + rbuf->bufferSize;
+ if (ret >= 2 * rbuf->bufferSize)
+ ret -= 2 * rbuf->bufferSize;
+ return ( ret );
+}
+/***************************************************************************
+** Return number of bytes available for writing. */
+long RingBuffer_GetWriteAvailable( RingBuffer *rbuf )
+{
+ return ( rbuf->bufferSize - RingBuffer_GetReadAvailable(rbuf));
+}
+
+/***************************************************************************
+** Clear buffer. Should only be called when buffer is NOT being read. */
+void RingBuffer_Flush( RingBuffer *rbuf )
+{
+ rbuf->writeIndex = rbuf->readIndex = 0;
+}
+
+/***************************************************************************
+** Get address of region(s) to which we can write data.
+** If the region is contiguous, size2 will be zero.
+** If non-contiguous, size2 will be the size of second region.
+** Returns room available to be written or numBytes, whichever is smaller.
+*/
+long RingBuffer_GetWriteRegions( RingBuffer *rbuf, long numBytes,
+ void **dataPtr1, long *sizePtr1,
+ void **dataPtr2, long *sizePtr2 )
+{
+ long index;
+ long available = RingBuffer_GetWriteAvailable( rbuf );
+ if( numBytes > available ) numBytes = available;
+ /* Check to see if write is not contiguous. */
+ index = rbuf->writeIndex;
+ while (index >= rbuf->bufferSize)
+ index -= rbuf->bufferSize;
+ if( (index + numBytes) > rbuf->bufferSize )
+ {
+ /* Write data in two blocks that wrap the buffer. */
+ long firstHalf = rbuf->bufferSize - index;
+ *dataPtr1 = &rbuf->buffer[index];
+ *sizePtr1 = firstHalf;
+ *dataPtr2 = &rbuf->buffer[0];
+ *sizePtr2 = numBytes - firstHalf;
+ }
+ else
+ {
+ *dataPtr1 = &rbuf->buffer[index];
+ *sizePtr1 = numBytes;
+ *dataPtr2 = NULL;
+ *sizePtr2 = 0;
+ }
+ return numBytes;
+}
+
+
+/***************************************************************************
+*/
+long RingBuffer_AdvanceWriteIndex( RingBuffer *rbuf, long numBytes )
+{
+ long ret = (rbuf->writeIndex + numBytes);
+ if ( ret > 2 * rbuf->bufferSize)
+ ret -= 2 * rbuf->bufferSize; /* check for end of buffer */
+ return rbuf->writeIndex = ret;
+}
+
+/***************************************************************************
+** Get address of region(s) from which we can read data.
+** If the region is contiguous, size2 will be zero.
+** If non-contiguous, size2 will be the size of second region.
+** Returns room available to be written or numBytes, whichever is smaller.
+*/
+long RingBuffer_GetReadRegions( RingBuffer *rbuf, long numBytes,
+ void **dataPtr1, long *sizePtr1,
+ void **dataPtr2, long *sizePtr2 )
+{
+ long index;
+ long available = RingBuffer_GetReadAvailable( rbuf );
+ if( numBytes > available ) numBytes = available;
+ /* Check to see if read is not contiguous. */
+ index = rbuf->readIndex;
+ while (index > rbuf->bufferSize)
+ index -= rbuf->bufferSize;
+
+ if( (index + numBytes) > rbuf->bufferSize )
+ {
+ /* Write data in two blocks that wrap the buffer. */
+ long firstHalf = rbuf->bufferSize - index;
+ *dataPtr1 = &rbuf->buffer[index];
+ *sizePtr1 = firstHalf;
+ *dataPtr2 = &rbuf->buffer[0];
+ *sizePtr2 = numBytes - firstHalf;
+ }
+ else
+ {
+ *dataPtr1 = &rbuf->buffer[index];
+ *sizePtr1 = numBytes;
+ *dataPtr2 = NULL;
+ *sizePtr2 = 0;
+ }
+ return numBytes;
+}
+/***************************************************************************
+*/
+long RingBuffer_AdvanceReadIndex( RingBuffer *rbuf, long numBytes )
+{
+ long ret = (rbuf->readIndex + numBytes);
+ if( ret > 2 * rbuf->bufferSize)
+ ret -= 2 * rbuf->bufferSize;
+ return rbuf->readIndex = ret;
+}
+
+/***************************************************************************
+** Return bytes written. */
+long RingBuffer_Write( RingBuffer *rbuf, void *data, long numBytes )
+{
+ long size1, size2, numWritten;
+ void *data1, *data2;
+ numWritten = RingBuffer_GetWriteRegions( rbuf, numBytes, &data1, &size1, &data2, &size2 );
+ if( size2 > 0 )
+ {
+
+ memcpy( data1, data, size1 );
+ data = ((char *)data) + size1;
+ memcpy( data2, data, size2 );
+ }
+ else
+ {
+ memcpy( data1, data, size1 );
+ }
+ RingBuffer_AdvanceWriteIndex( rbuf, numWritten );
+ return numWritten;
+}
+
+/***************************************************************************
+** Return bytes read. */
+long RingBuffer_Read( RingBuffer *rbuf, void *data, long numBytes )
+{
+ long size1, size2, numRead;
+ void *data1, *data2;
+ numRead = RingBuffer_GetReadRegions( rbuf, numBytes, &data1, &size1, &data2, &size2 );
+ if( size2 > 0 )
+ {
+ memcpy( data, data1, size1 );
+ data = ((char *)data) + size1;
+ memcpy( data, data2, size2 );
+ }
+ else
+ {
+ memcpy( data, data1, size1 );
+ }
+ RingBuffer_AdvanceReadIndex( rbuf, numRead );
+ return numRead;
+}
diff --git a/pd/portaudio/pablio/test_rw.c b/pd/portaudio/pablio/test_rw.c
new file mode 100644
index 00000000..cf54427d
--- /dev/null
+++ b/pd/portaudio/pablio/test_rw.c
@@ -0,0 +1,99 @@
+/*
+ * $Id: test_rw.c,v 1.1.1.1 2002-07-29 17:06:17 ggeiger Exp $
+ * test_rw.c
+ * Read input from one stream and write it to another.
+ *
+ * Author: Phil Burk, http://www.softsynth.com/portaudio/
+ *
+ * This program uses PABLIO, the Portable Audio Blocking I/O Library.
+ * PABLIO is built on top of PortAudio, the 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 <stdlib.h>
+#include "pablio.h"
+
+/*
+** Note that many of the older ISA sound cards on PCs do NOT support
+** full duplex audio (simultaneous record and playback).
+** And some only support full duplex at lower sample rates.
+*/
+#define SAMPLE_RATE (44100)
+#define NUM_SECONDS (5)
+#define SAMPLES_PER_FRAME (2)
+#define FRAMES_PER_BLOCK (64)
+
+/* Select whether we will use floats or shorts. */
+#if 1
+#define SAMPLE_TYPE paFloat32
+typedef float SAMPLE;
+#else
+#define SAMPLE_TYPE paInt16
+typedef short SAMPLE;
+#endif
+
+/*******************************************************************/
+int main(void);
+int main(void)
+{
+ int i;
+ SAMPLE samples[SAMPLES_PER_FRAME * FRAMES_PER_BLOCK];
+ PaError err;
+ PABLIO_Stream *aStream;
+
+ printf("Full duplex sound test using PortAudio and RingBuffers\n");
+ fflush(stdout);
+
+ /* Open simplified blocking I/O layer on top of PortAudio. */
+ err = OpenAudioStream( &aStream, SAMPLE_RATE, SAMPLE_TYPE,
+ (PABLIO_READ_WRITE | PABLIO_STEREO) );
+ if( err != paNoError ) goto error;
+
+ /* Process samples in the foreground. */
+ for( i=0; i<(NUM_SECONDS * SAMPLE_RATE); i += FRAMES_PER_BLOCK )
+ {
+ /* Read one block of data into sample array from audio input. */
+ ReadAudioStream( aStream, samples, FRAMES_PER_BLOCK );
+ /* Write that same block of data to output. */
+ WriteAudioStream( aStream, samples, FRAMES_PER_BLOCK );
+ }
+
+ CloseAudioStream( aStream );
+
+ printf("Full duplex sound test complete.\n" );
+ fflush(stdout);
+ return 0;
+
+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 -1;
+}
diff --git a/pd/portaudio/pablio/test_rw_echo.c b/pd/portaudio/pablio/test_rw_echo.c
new file mode 100644
index 00000000..9b27e3c2
--- /dev/null
+++ b/pd/portaudio/pablio/test_rw_echo.c
@@ -0,0 +1,123 @@
+/*
+ * $Id: test_rw_echo.c,v 1.1.1.1 2002-07-29 17:06:17 ggeiger Exp $
+ * test_rw_echo.c
+ * Echo delayed input to output.
+ *
+ * Author: Phil Burk, http://www.softsynth.com/portaudio/
+ *
+ * This program uses PABLIO, the Portable Audio Blocking I/O Library.
+ * PABLIO is built on top of PortAudio, the Portable Audio Library.
+ *
+ * Note that if you need low latency, you should not use PABLIO.
+ * Use the PA_OpenStream callback technique which is lower level
+ * than PABLIO.
+ *
+ * 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 <stdlib.h>
+#include <math.h>
+#include "pablio.h"
+#include <string.h>
+
+/*
+** Note that many of the older ISA sound cards on PCs do NOT support
+** full duplex audio (simultaneous record and playback).
+** And some only support full duplex at lower sample rates.
+*/
+#define SAMPLE_RATE (22050)
+#define NUM_SECONDS (20)
+#define SAMPLES_PER_FRAME (2)
+
+/* Select whether we will use floats or shorts. */
+#if 1
+#define SAMPLE_TYPE paFloat32
+typedef float SAMPLE;
+#else
+#define SAMPLE_TYPE paInt16
+typedef short SAMPLE;
+#endif
+
+#define NUM_ECHO_FRAMES (2*SAMPLE_RATE)
+SAMPLE samples[NUM_ECHO_FRAMES][SAMPLES_PER_FRAME] = {0.0};
+
+/*******************************************************************/
+int main(void);
+int main(void)
+{
+ int i;
+ PaError err;
+ PABLIO_Stream *aInStream;
+ PABLIO_Stream *aOutStream;
+ int index;
+
+ printf("Full duplex sound test using PABLIO\n");
+ fflush(stdout);
+
+ /* Open simplified blocking I/O layer on top of PortAudio. */
+ /* Open input first so it can start to fill buffers. */
+ err = OpenAudioStream( &aInStream, SAMPLE_RATE, SAMPLE_TYPE,
+ (PABLIO_READ | PABLIO_STEREO) );
+ if( err != paNoError ) goto error;
+ /* printf("opened input\n"); fflush(stdout); /**/
+
+ err = OpenAudioStream( &aOutStream, SAMPLE_RATE, SAMPLE_TYPE,
+ (PABLIO_WRITE | PABLIO_STEREO) );
+ if( err != paNoError ) goto error;
+ /* printf("opened output\n"); fflush(stdout); /**/
+
+ /* Process samples in the foreground. */
+ index = 0;
+ for( i=0; i<(NUM_SECONDS * SAMPLE_RATE); i++ )
+ {
+ /* Write old frame of data to output. */
+ /* samples[index][1] = (i&256) * (1.0f/256.0f); /* sawtooth */
+ WriteAudioStream( aOutStream, &samples[index][0], 1 );
+
+ /* Read one frame of data into sample array for later output. */
+ ReadAudioStream( aInStream, &samples[index][0], 1 );
+ index += 1;
+ if( index >= NUM_ECHO_FRAMES ) index = 0;
+
+ if( (i & 0xFFFF) == 0 ) printf("i = %d\n", i ); fflush(stdout); /**/
+ }
+
+ CloseAudioStream( aOutStream );
+ CloseAudioStream( aInStream );
+
+ printf("R/W echo sound test complete.\n" );
+ fflush(stdout);
+ return 0;
+
+error:
+ fprintf( stderr, "An error occured while using PortAudio\n" );
+ fprintf( stderr, "Error number: %d\n", err );
+ fprintf( stderr, "Error message: %s\n", Pa_GetErrorText( err ) );
+ return -1;
+}
diff --git a/pd/portaudio/pablio/test_w_saw.c b/pd/portaudio/pablio/test_w_saw.c
new file mode 100644
index 00000000..b8e3e71a
--- /dev/null
+++ b/pd/portaudio/pablio/test_w_saw.c
@@ -0,0 +1,108 @@
+/*
+ * $Id: test_w_saw.c,v 1.1.1.1 2002-07-29 17:06:17 ggeiger Exp $
+ * test_w_saw.c
+ * Generate stereo sawtooth waveforms.
+ *
+ * Author: Phil Burk, http://www.softsynth.com
+ *
+ * This program uses PABLIO, the Portable Audio Blocking I/O Library.
+ * PABLIO is built on top of PortAudio, the 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 <stdlib.h>
+#include <math.h>
+#include "pablio.h"
+#include <string.h>
+
+#define SAMPLE_RATE (44100)
+#define NUM_SECONDS (6)
+#define SAMPLES_PER_FRAME (2)
+
+#define FREQUENCY (220.0f)
+#define PHASE_INCREMENT (2.0f * FREQUENCY / SAMPLE_RATE)
+#define FRAMES_PER_BLOCK (100)
+
+float samples[FRAMES_PER_BLOCK][SAMPLES_PER_FRAME];
+float phases[SAMPLES_PER_FRAME];
+
+/*******************************************************************/
+int main(void);
+int main(void)
+{
+ int i,j;
+ PaError err;
+ PABLIO_Stream *aOutStream;
+
+ printf("Generate sawtooth waves using PABLIO.\n");
+ fflush(stdout);
+
+ /* Open simplified blocking I/O layer on top of PortAudio. */
+ err = OpenAudioStream( &aOutStream, SAMPLE_RATE, paFloat32,
+ (PABLIO_WRITE | PABLIO_STEREO) );
+ if( err != paNoError ) goto error;
+
+ /* Initialize oscillator phases. */
+ phases[0] = 0.0;
+ phases[1] = 0.0;
+
+ for( i=0; i<(NUM_SECONDS * SAMPLE_RATE); i += FRAMES_PER_BLOCK )
+ {
+ /* Generate sawtooth waveforms in a block for efficiency. */
+ for( j=0; j<FRAMES_PER_BLOCK; j++ )
+ {
+ /* Generate a sawtooth wave by incrementing a variable. */
+ phases[0] += PHASE_INCREMENT;
+ /* The signal range is -1.0 to +1.0 so wrap around if we go over. */
+ if( phases[0] > 1.0f ) phases[0] -= 2.0f;
+ samples[j][0] = phases[0];
+
+ /* On the second channel, generate a sawtooth wave a fifth higher. */
+ phases[1] += PHASE_INCREMENT * (3.0f / 2.0f);
+ if( phases[1] > 1.0f ) phases[1] -= 2.0f;
+ samples[j][1] = phases[1];
+ }
+
+ /* Write samples to output. */
+ WriteAudioStream( aOutStream, samples, FRAMES_PER_BLOCK );
+ }
+
+ CloseAudioStream( aOutStream );
+
+ printf("Sawtooth sound test complete.\n" );
+ fflush(stdout);
+ return 0;
+
+error:
+ fprintf( stderr, "An error occured while using PABLIO\n" );
+ fprintf( stderr, "Error number: %d\n", err );
+ fprintf( stderr, "Error message: %s\n", Pa_GetErrorText( err ) );
+ return -1;
+}
diff --git a/pd/portaudio/pablio/test_w_saw8.c b/pd/portaudio/pablio/test_w_saw8.c
new file mode 100644
index 00000000..b876bd9f
--- /dev/null
+++ b/pd/portaudio/pablio/test_w_saw8.c
@@ -0,0 +1,106 @@
+/*
+ * $Id: test_w_saw8.c,v 1.1.1.1 2002-07-29 17:06:17 ggeiger Exp $
+ * test_w_saw8.c
+ * Generate stereo 8 bit sawtooth waveforms.
+ *
+ * Author: Phil Burk, http://www.softsynth.com
+ *
+ * This program uses PABLIO, the Portable Audio Blocking I/O Library.
+ * PABLIO is built on top of PortAudio, the 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 <stdlib.h>
+#include <math.h>
+#include "pablio.h"
+#include <string.h>
+
+#define SAMPLE_RATE (22050)
+#define NUM_SECONDS (6)
+#define SAMPLES_PER_FRAME (2)
+
+
+#define FRAMES_PER_BLOCK (100)
+
+unsigned char samples[FRAMES_PER_BLOCK][SAMPLES_PER_FRAME];
+unsigned char phases[SAMPLES_PER_FRAME];
+
+/*******************************************************************/
+int main(void);
+int main(void)
+{
+ int i,j;
+ PaError err;
+ PABLIO_Stream *aOutStream;
+
+ printf("Generate unsigned 8 bit sawtooth waves using PABLIO.\n");
+ fflush(stdout);
+
+ /* Open simplified blocking I/O layer on top of PortAudio. */
+ err = OpenAudioStream( &aOutStream, SAMPLE_RATE, paUInt8,
+ (PABLIO_WRITE | PABLIO_STEREO) );
+ if( err != paNoError ) goto error;
+
+ /* Initialize oscillator phases to "ground" level for paUInt8. */
+ phases[0] = 128;
+ phases[1] = 128;
+
+ for( i=0; i<(NUM_SECONDS * SAMPLE_RATE); i += FRAMES_PER_BLOCK )
+ {
+ /* Generate sawtooth waveforms in a block for efficiency. */
+ for( j=0; j<FRAMES_PER_BLOCK; j++ )
+ {
+ /* Generate a sawtooth wave by incrementing a variable. */
+ phases[0] += 1;
+ /* We don't have to do anything special to wrap when using paUint8 because
+ * 8 bit arithmetic automatically wraps. */
+ samples[j][0] = phases[0];
+
+ /* On the second channel, generate a higher sawtooth wave. */
+ phases[1] += 3;
+ samples[j][1] = phases[1];
+ }
+
+ /* Write samples to output. */
+ WriteAudioStream( aOutStream, samples, FRAMES_PER_BLOCK );
+ }
+
+ CloseAudioStream( aOutStream );
+
+ printf("Sawtooth sound test complete.\n" );
+ fflush(stdout);
+ return 0;
+
+error:
+ fprintf( stderr, "An error occured while using PABLIO\n" );
+ fprintf( stderr, "Error number: %d\n", err );
+ fprintf( stderr, "Error message: %s\n", Pa_GetErrorText( err ) );
+ return -1;
+}
diff --git a/pd/portaudio/pablio/test_w_saw_pd.c b/pd/portaudio/pablio/test_w_saw_pd.c
new file mode 100644
index 00000000..be95d245
--- /dev/null
+++ b/pd/portaudio/pablio/test_w_saw_pd.c
@@ -0,0 +1,108 @@
+/*
+ * $Id: test_w_saw_pd.c,v 1.1.1.1 2002-07-29 17:06:17 ggeiger Exp $
+ * test_w_saw.c
+ * Generate stereo sawtooth waveforms.
+ *
+ * Author: Phil Burk, http://www.softsynth.com
+ *
+ * This program uses PABLIO, the Portable Audio Blocking I/O Library.
+ * PABLIO is built on top of PortAudio, the 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 <stdlib.h>
+#include <math.h>
+#include "pablio_pd.h"
+#include <string.h>
+
+#define SAMPLE_RATE (44100)
+#define NUM_SECONDS (6)
+#define SAMPLES_PER_FRAME (2)
+
+#define FREQUENCY (220.0f)
+#define PHASE_INCREMENT (2.0f * FREQUENCY / SAMPLE_RATE)
+#define FRAMES_PER_BLOCK (100)
+
+float samples[FRAMES_PER_BLOCK][SAMPLES_PER_FRAME];
+float phases[SAMPLES_PER_FRAME];
+
+/*******************************************************************/
+int main(void);
+int main(void)
+{
+ int i,j;
+ PaError err;
+ PABLIO_Stream *aOutStream;
+
+ printf("Generate sawtooth waves using PABLIO.\n");
+ fflush(stdout);
+
+ /* Open simplified blocking I/O layer on top of PortAudio. */
+ err = OpenAudioStream( &aOutStream, SAMPLE_RATE, paFloat32,
+ PABLIO_WRITE, 2, 512, 8, -1, -1 );
+ if( err != paNoError ) goto error;
+
+ /* Initialize oscillator phases. */
+ phases[0] = 0.0;
+ phases[1] = 0.0;
+
+ for( i=0; i<(NUM_SECONDS * SAMPLE_RATE); i += FRAMES_PER_BLOCK )
+ {
+ /* Generate sawtooth waveforms in a block for efficiency. */
+ for( j=0; j<FRAMES_PER_BLOCK; j++ )
+ {
+ /* Generate a sawtooth wave by incrementing a variable. */
+ phases[0] += PHASE_INCREMENT;
+ /* The signal range is -1.0 to +1.0 so wrap around if we go over. */
+ if( phases[0] > 1.0f ) phases[0] -= 2.0f;
+ samples[j][0] = phases[0];
+
+ /* On the second channel, generate a sawtooth wave a fifth higher. */
+ phases[1] += PHASE_INCREMENT * (3.0f / 2.0f);
+ if( phases[1] > 1.0f ) phases[1] -= 2.0f;
+ samples[j][1] = phases[1];
+ }
+
+ /* Write samples to output. */
+ WriteAudioStream( aOutStream, samples, FRAMES_PER_BLOCK );
+ }
+
+ CloseAudioStream( aOutStream );
+
+ printf("Sawtooth sound test complete.\n" );
+ fflush(stdout);
+ return 0;
+
+error:
+ fprintf( stderr, "An error occured while using PABLIO\n" );
+ fprintf( stderr, "Error number: %d\n", err );
+ fprintf( stderr, "Error message: %s\n", Pa_GetErrorText( err ) );
+ return -1;
+}
generated by cgit v1.2.1 (git 2.18.0) at 2024-11-05 01:40:41 +0000