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svn path=/trunk/; revision=1302

1 files changed, 176 insertions, 0 deletions

diff --git a/pd/portaudio_v18/pa_tests/patest_wire.c b/pd/portaudio_v18/pa_tests/patest_wire.c
new file mode 100644
index 00000000..7ea64bb4
--- /dev/null
+++ b/pd/portaudio_v18/pa_tests/patest_wire.c
@@ -0,0 +1,176 @@
+/*
+ * $Id: patest_wire.c,v 1.2.4.3 2003/04/10 23:09:40 philburk Exp $
+ * patest_wire.c
+ *
+ * Pass input directly to output.
+ * Note that some HW devices, for example many ISA audio cards
+ * on PCs, do NOT support full duplex! For a PC, you normally need
+ * a PCI based audio card such as the SBLive.
+ *
+ * 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 INPUT_DEVICE  Pa_GetDefaultInputDeviceID()
+#define OUTPUT_DEVICE Pa_GetDefaultOutputDeviceID()
+
+/*
+** 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 FRAMES_PER_BUFFER  (64)
+
+#if 1
+#define PA_SAMPLE_TYPE  paFloat32
+typedef float SAMPLE;
+#else
+#define PA_SAMPLE_TYPE  paInt16
+typedef short SAMPLE;
+#endif
+static int wireCallback( void *inputBuffer, void *outputBuffer,
+                         unsigned long framesPerBuffer,
+                         PaTimestamp outTime, void *userData );
+
+/* This routine will be called by the PortAudio engine when audio is needed.
+** It may be 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 wireCallback( void *inputBuffer, void *outputBuffer,
+                         unsigned long framesPerBuffer,
+                         PaTimestamp outTime, void *userData )
+{
+    SAMPLE *out = (SAMPLE*)outputBuffer;
+    SAMPLE *in = (SAMPLE*)inputBuffer;
+    unsigned int i;
+    (void) outTime;
+    int samplesPerFrame;
+    int numSamples;
+    
+    samplesPerFrame = (int) userData;
+    numSamples =  framesPerBuffer * samplesPerFrame;
+    
+    /* This may get called with NULL inputBuffer during initial setup. */
+    if( inputBuffer == NULL )
+    {
+        for( i=0; i<numSamples; i++ )
+        {
+            *out++ = 0;
+        }
+    }
+    else
+    {
+        for( i=0; i<numSamples; i++ )
+        {
+            *out++ = *in++;
+        }
+    }
+
+    return 0;
+}
+
+
+/*******************************************************************/
+int main(void);
+int main(void)
+{
+    PortAudioStream *stream;
+    PaError err;
+    const    PaDeviceInfo *inputInfo;
+    const    PaDeviceInfo *outputInfo;
+    int      numChannels;
+    
+    err = Pa_Initialize();
+    if( err != paNoError ) goto error;
+    
+    printf("PortAudio Test: input device ID  = %d\n", INPUT_DEVICE );
+    printf("PortAudio Test: output device ID = %d\n", OUTPUT_DEVICE );
+    
+    /* Use as many channels aspossible. */
+    inputInfo = Pa_GetDeviceInfo( INPUT_DEVICE );
+    outputInfo = Pa_GetDeviceInfo( OUTPUT_DEVICE );
+    /* Use smaller count. */
+    numChannels = (inputInfo->maxInputChannels < outputInfo->maxOutputChannels) ?
+        inputInfo->maxInputChannels : outputInfo->maxOutputChannels;
+        
+    printf("maxInputChannels channels = %d\n", inputInfo->maxInputChannels );
+    printf("maxOutputChannels channels = %d\n", outputInfo->maxOutputChannels );
+    if( numChannels > 0 )
+    {
+        printf("Using %d channels.\n", numChannels );
+        
+        err = Pa_OpenStream(
+                &stream,
+                INPUT_DEVICE,
+                numChannels,
+                PA_SAMPLE_TYPE,
+                NULL,
+                OUTPUT_DEVICE,
+                numChannels,
+                PA_SAMPLE_TYPE,
+                NULL,
+                SAMPLE_RATE,
+                FRAMES_PER_BUFFER,            /* frames per buffer */
+                0,               /* number of buffers, if zero then use default minimum */
+                paClipOff,       /* we won't output out of range samples so don't bother clipping them */
+                wireCallback,
+                (void *) numChannels );  /* pass numChannels to callback */
+        if( err != paNoError ) goto error;
+        
+        err = Pa_StartStream( stream );
+        if( err != paNoError ) goto error;
+        
+        printf("Full duplex sound test in progress.\n");
+        printf("Hit ENTER to exit test.\n");  fflush(stdout);
+        getchar();
+        
+        printf("Closing stream.\n");
+        err = Pa_CloseStream( stream );
+        if( err != paNoError ) goto error;
+    }
+    else
+    {
+        printf("Sorry, not enough channels.\n");
+    }
+    Pa_Terminate();
+    
+    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;
+}