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+/*
+ * $Id: paqa_devs.c,v 1.1.1.1.4.1 2003/02/11 21:41:32 philburk Exp $
+ * paqa_devs.c
+ * Self Testing Quality Assurance app for PortAudio
+ * Try to open each device and run through all the
+ * possible configurations.
+ *
+ * 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"
+#include "pa_trace.h"
+/****************************************** Definitions ***********/
+#define MODE_INPUT (0)
+#define MODE_OUTPUT (1)
+typedef struct PaQaData
+{
+ unsigned long framesLeft;
+ int numChannels;
+ int bytesPerSample;
+ int mode;
+ short sawPhase;
+ PaSampleFormat format;
+} PaQaData;
+
+/****************************************** Prototypes ***********/
+static void TestDevices( int mode );
+static void TestFormats( int mode, PaDeviceID deviceID, double sampleRate,
+ int numChannels );
+static int TestAdvance( int mode, PaDeviceID deviceID, double sampleRate,
+ int numChannels, PaSampleFormat format );
+static int QaCallback( void *inputBuffer, void *outputBuffer,
+ unsigned long framesPerBuffer,
+ PaTimestamp outTime, void *userData );
+
+/****************************************** Globals ***********/
+static int gNumPassed = 0;
+static int gNumFailed = 0;
+
+/****************************************** Macros ***********/
+/* Print ERROR if it fails. Tally success or failure. */
+/* Odd do-while wrapper seems to be needed for some compilers. */
+#define EXPECT(_exp) \
+ do \
+ { \
+ if ((_exp)) {\
+ /* printf("SUCCESS for %s\n", #_exp ); */ \
+ gNumPassed++; \
+ } \
+ else { \
+ printf("ERROR - 0x%x - %s for %s\n", result, \
+ ((result == 0) ? "-" : Pa_GetErrorText(result)), \
+ #_exp ); \
+ gNumFailed++; \
+ goto error; \
+ } \
+ } while(0)
+/*******************************************************************/
+/* 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 QaCallback( void *inputBuffer, void *outputBuffer,
+ unsigned long framesPerBuffer,
+ PaTimestamp outTime, void *userData )
+{
+ unsigned long i;
+ short phase;
+ PaQaData *data = (PaQaData *) userData;
+ (void) inputBuffer;
+ (void) outTime;
+
+ /* Play simple sawtooth wave. */
+ if( data->mode == MODE_OUTPUT )
+ {
+ phase = data->sawPhase;
+ switch( data->format )
+ {
+ case paFloat32:
+ {
+ float *out = (float *) outputBuffer;
+ for( i=0; i<framesPerBuffer; i++ )
+ {
+ phase += 0x123;
+ *out++ = (float) (phase * (1.0 / 32768.0));
+ if( data->numChannels == 2 )
+ {
+ *out++ = (float) (phase * (1.0 / 32768.0));
+ }
+ }
+ }
+ break;
+
+ case paInt32:
+ {
+ int *out = (int *) outputBuffer;
+ for( i=0; i<framesPerBuffer; i++ )
+ {
+ phase += 0x123;
+ *out++ = ((int) phase ) << 16;
+ if( data->numChannels == 2 )
+ {
+ *out++ = ((int) phase ) << 16;
+ }
+ }
+ }
+ break;
+ case paInt16:
+ {
+ short *out = (short *) outputBuffer;
+ for( i=0; i<framesPerBuffer; i++ )
+ {
+ phase += 0x123;
+ *out++ = phase;
+ if( data->numChannels == 2 )
+ {
+ *out++ = phase;
+ }
+ }
+ }
+ break;
+
+ default:
+ {
+ unsigned char *out = (unsigned char *) outputBuffer;
+ unsigned long numBytes = framesPerBuffer * data->numChannels * data->bytesPerSample;
+ for( i=0; i<numBytes; i++ )
+ {
+ *out++ = 0;
+ }
+ }
+ break;
+ }
+ data->sawPhase = phase;
+ }
+ /* Are we through yet? */
+ if( data->framesLeft > framesPerBuffer )
+ {
+ AddTraceMessage("QaCallback: running. framesLeft", data->framesLeft );
+ data->framesLeft -= framesPerBuffer;
+ return 0;
+ }
+ else
+ {
+ AddTraceMessage("QaCallback: DONE! framesLeft", data->framesLeft );
+ data->framesLeft = 0;
+ return 1;
+ }
+}
+/*******************************************************************/
+int main(void);
+int main(void)
+{
+ PaError result;
+ EXPECT( ((result=Pa_Initialize()) == 0) );
+ printf("Test OUTPUT ---------------\n");
+ TestDevices( MODE_OUTPUT );
+ printf("Test INPUT ---------------\n");
+ TestDevices( MODE_INPUT );
+error:
+ Pa_Terminate();
+ printf("QA Report: %d passed, %d failed.\n", gNumPassed, gNumFailed );
+}
+/*******************************************************************
+* Try each output device, through its full range of capabilities. */
+static void TestDevices( int mode )
+{
+ int id,jc,kr;
+ int maxChannels;
+ const PaDeviceInfo *pdi;
+ int numDevices = Pa_CountDevices();
+ /* Iterate through all devices. */
+ for( id=0; id<numDevices; id++ )
+ {
+ pdi = Pa_GetDeviceInfo( id );
+ /* Try 1 to maxChannels on each device. */
+ maxChannels = ( mode == MODE_INPUT ) ? pdi->maxInputChannels : pdi->maxOutputChannels;
+ for( jc=1; jc<=maxChannels; jc++ )
+ {
+ printf("Name = %s\n", pdi->name );
+ /* Try each legal sample rate. */
+ if( pdi->numSampleRates == -1 )
+ {
+ double low, high;
+ low = pdi->sampleRates[0];
+ high = pdi->sampleRates[1];
+ if( low < 8000.0 ) low = 8000.0;
+ TestFormats( mode, id, low, jc );
+#define TESTSR(sr) {if(((sr)>=low) && ((sr)<=high)) TestFormats( mode, id, (sr), jc ); }
+
+ TESTSR(11025.0);
+ TESTSR(22050.0);
+ TESTSR(34567.0);
+ TESTSR(44100.0);
+ TestFormats( mode, id, high, jc );
+ }
+ else
+ {
+ for( kr=0; kr<pdi->numSampleRates; kr++ )
+ {
+ TestFormats( mode, id, pdi->sampleRates[kr], jc );
+ }
+ }
+ }
+ }
+}
+/*******************************************************************/
+static void TestFormats( int mode, PaDeviceID deviceID, double sampleRate,
+ int numChannels )
+{
+ TestAdvance( mode, deviceID, sampleRate, numChannels, paFloat32 ); /* */
+ TestAdvance( mode, deviceID, sampleRate, numChannels, paInt16 ); /* */
+ TestAdvance( mode, deviceID, sampleRate, numChannels, paInt32 ); /* */
+}
+/*******************************************************************/
+static int TestAdvance( int mode, PaDeviceID deviceID, double sampleRate,
+ int numChannels, PaSampleFormat format )
+{
+ PortAudioStream *stream = NULL;
+ PaError result;
+ PaQaData myData;
+#define FRAMES_PER_BUFFER (64)
+ printf("------ TestAdvance: %s, device = %d, rate = %g, numChannels = %d, format = %d -------\n",
+ ( mode == MODE_INPUT ) ? "INPUT" : "OUTPUT",
+ deviceID, sampleRate, numChannels, format);
+ fflush(stdout);
+ /* Setup data for synthesis thread. */
+ myData.framesLeft = (unsigned long) (sampleRate * 100); /* 100 seconds */
+ myData.numChannels = numChannels;
+ myData.mode = mode;
+ myData.format = format;
+ switch( format )
+ {
+ case paFloat32:
+ case paInt32:
+ case paInt24:
+ myData.bytesPerSample = 4;
+ break;
+ case paPackedInt24:
+ myData.bytesPerSample = 3;
+ break;
+ default:
+ myData.bytesPerSample = 2;
+ break;
+ }
+ EXPECT( ((result = Pa_OpenStream(
+ &stream,
+ ( mode == MODE_INPUT ) ? deviceID : paNoDevice,
+ ( mode == MODE_INPUT ) ? numChannels : 0,
+ format,
+ NULL,
+ ( mode == MODE_OUTPUT ) ? deviceID : paNoDevice,
+ ( mode == MODE_OUTPUT ) ? numChannels : 0,
+ format,
+ NULL,
+ sampleRate,
+ 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 */
+ QaCallback,
+ &myData )
+ ) == 0) );
+ if( stream )
+ {
+ PaTimestamp oldStamp, newStamp;
+ unsigned long oldFrames;
+ int minDelay = ( mode == MODE_INPUT ) ? 1000 : 400;
+ int minNumBuffers = Pa_GetMinNumBuffers( FRAMES_PER_BUFFER, sampleRate );
+ int msec = (int) ((minNumBuffers * 3 * 1000.0 * FRAMES_PER_BUFFER) / sampleRate);
+ if( msec < minDelay ) msec = minDelay;
+ printf("msec = %d\n", msec); /**/
+ EXPECT( ((result=Pa_StartStream( stream )) == 0) );
+ /* Check to make sure PortAudio is advancing timeStamp. */
+ result = paNoError;
+ oldStamp = Pa_StreamTime(stream);
+ fflush(stdout);
+ Pa_Sleep(msec);
+ newStamp = Pa_StreamTime(stream);
+ printf("oldStamp = %g,newStamp = %g\n", oldStamp, newStamp ); /**/
+ EXPECT( (oldStamp < newStamp) );
+ /* Check to make sure callback is decrementing framesLeft. */
+ oldFrames = myData.framesLeft;
+ Pa_Sleep(msec);
+ printf("oldFrames = %d, myData.framesLeft = %d\n", oldFrames, myData.framesLeft ); /**/
+ EXPECT( (oldFrames > myData.framesLeft) );
+ EXPECT( ((result=Pa_CloseStream( stream )) == 0) );
+ stream = NULL;
+ }
+error:
+ if( stream != NULL ) Pa_CloseStream( stream );
+ fflush(stdout);
+ return result;
+}
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