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authorGuenter Geiger <ggeiger@users.sourceforge.net>2004-02-02 12:18:59 +0000
committerGuenter Geiger <ggeiger@users.sourceforge.net>2004-02-02 12:18:59 +0000
commit2e416ee0095f1bf608f849f156d564e0f45fb8ab (patch)
tree9e4881e81953b434b91dbd35218d78f05b27e82e /pd/portaudio/pa_win_wmme
parentae6b5d89ea93b95c2990895077cf5e8f0bba9ad9 (diff)
merged in version_0_37_1test6
svn path=/trunk/; revision=1305
Diffstat (limited to 'pd/portaudio/pa_win_wmme')
-rw-r--r--pd/portaudio/pa_win_wmme/Makefile.cygwin34
-rw-r--r--pd/portaudio/pa_win_wmme/pa_win_wmme.c2672
-rw-r--r--pd/portaudio/pa_win_wmme/pa_win_wmme.h105
3 files changed, 0 insertions, 2811 deletions
diff --git a/pd/portaudio/pa_win_wmme/Makefile.cygwin b/pd/portaudio/pa_win_wmme/Makefile.cygwin
deleted file mode 100644
index 5cb4acef..00000000
--- a/pd/portaudio/pa_win_wmme/Makefile.cygwin
+++ /dev/null
@@ -1,34 +0,0 @@
-
-# Makefile for PortAudio on cygwin
-# Contributed by Bill Eldridge on 6/13/2001
-
-ARCH= pa_win_wmme
-
-TESTS:= $(wildcard pa_tests/pa*.c pa_tests/debug*.c)
-
-.c.o:
- -gcc -c -I./pa_common $< -o $*.o
- -gcc $*.o -o $*.exe -L/usr/local/lib -L$(ARCH) -lportaudio.dll -lwinmm
-
-all: sharedlib tests
-
-sharedlib: ./pa_common/pa_lib.c
- gcc -c -I./pa_common pa_common/pa_lib.c -o pa_common/pa_lib.o
- gcc -c -I./pa_common pa_win_wmme/pa_win_wmme.c -o pa_win_wmme/pa_win_wmme.o
- dlltool --export-all --output-def pa_win_wmme/pa_lib.def pa_common/pa_lib.o pa_win_wmme/pa_win_wmme.o
- gcc -shared -Wl,--enable-auto-image-base -o pa_win_wmme/portaudio.dll -Wl,--out-implib=pa_win_wmme/libportaudio.dll.a pa_win_wmme/pa_lib.def pa_common/pa_lib.o pa_win_wmme/pa_win_wmme.o -L/usr/lib/w32api -lwinmm
- cp pa_win_wmme/portaudio.dll /usr/local/bin
-
-tests: $(TESTS:.c=.o)
-
-sine:
- gcc -c -I./pa_common pa_tests/patest_sine.c -o pa_tests/patest_sine.o
- gcc pa_tests/patest_sine.o -o pa_tests/patest_sine.exe -L/usr/local/lib -lportaudio.dll -lwinmm
-
-clean:
- -rm ./pa_tests/*.exe
-
-nothing:
- gcc pa_tests/patest_sine.o -L/usr/lib/w32api -L./pa_win_wmme -lportaudio.dll -lwinmm
-
-
diff --git a/pd/portaudio/pa_win_wmme/pa_win_wmme.c b/pd/portaudio/pa_win_wmme/pa_win_wmme.c
deleted file mode 100644
index 2b1cc57d..00000000
--- a/pd/portaudio/pa_win_wmme/pa_win_wmme.c
+++ /dev/null
@@ -1,2672 +0,0 @@
-/*
- * $Id: pa_win_wmme.c,v 1.6.2.44 2003/03/18 14:27:58 rossbencina Exp $
- * pa_win_wmme.c
- * Implementation of PortAudio for Windows MultiMedia Extensions (WMME)
- *
- * PortAudio Portable Real-Time Audio Library
- * Latest Version at: http://www.portaudio.com
- *
- * Authors: Ross Bencina and Phil Burk
- * 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.
- *
- */
-
-/* Modification History:
- PLB = Phil Burk
- JM = Julien Maillard
- RDB = Ross Bencina
- PLB20010402 - sDevicePtrs now allocates based on sizeof(pointer)
- PLB20010413 - check for excessive numbers of channels
- PLB20010422 - apply Mike Berry's changes for CodeWarrior on PC
- including conditional inclusion of memory.h,
- and explicit typecasting on memory allocation
- PLB20010802 - use GlobalAlloc for sDevicesPtr instead of PaHost_AllocFastMemory
- PLB20010816 - pass process instead of thread to SetPriorityClass()
- PLB20010927 - use number of frames instead of real-time for CPULoad calculation.
- JM20020118 - prevent hung thread when buffers underflow.
- PLB20020321 - detect Win XP versus NT, 9x; fix DBUG typo; removed init of CurrentCount
- RDB20020411 - various renaming cleanups, factored streamData alloc and cpu usage init
- RDB20020417 - stopped counting WAVE_MAPPER when there were no real devices
- refactoring, renaming and fixed a few edge case bugs
- RDB20020531 - converted to V19 framework
- ** NOTE maintanance history is now stored in CVS **
-*/
-
-/** @file
-
- @todo Handle case where user supplied full duplex buffer sizes are not compatible
- (must be common multiples)
-
- @todo Fix buffer catch up code, can sometimes get stuck
-
- @todo Implement "close sample rate matching" if needed - is this really needed
- in mme?
-
- @todo Investigate supporting host buffer formats > 16 bits
-
- @todo Implement buffer size and number of buffers code,
- this code should generate defaults the way the old code did
-
- @todo implement underflow/overflow streamCallback statusFlags, paNeverDropInput.
-
- @todo Fix fixmes
-
- @todo implement initialisation of PaDeviceInfo default*Latency fields (currently set to 0.)
-
- @todo implement ReadStream, WriteStream, GetStreamReadAvailable, GetStreamWriteAvailable
-
- @todo implement IsFormatSupported
-
- @todo implement PaDeviceInfo.defaultSampleRate;
-
- @todo define UNICODE and _UNICODE in the project settings and see what breaks
-*/
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <math.h>
-#include <windows.h>
-#include <mmsystem.h>
-#include <process.h>
-#include <assert.h>
-/* PLB20010422 - "memory.h" doesn't work on CodeWarrior for PC. Thanks Mike Berry for the mod. */
-#ifndef __MWERKS__
-#include <malloc.h>
-#include <memory.h>
-#endif /* __MWERKS__ */
-
-#include "portaudio.h"
-#include "pa_trace.h"
-#include "pa_util.h"
-#include "pa_allocation.h"
-#include "pa_hostapi.h"
-#include "pa_stream.h"
-#include "pa_cpuload.h"
-#include "pa_process.h"
-
-#include "pa_win_wmme.h"
-
-/************************************************* Constants ********/
-
-/* Switches for debugging. */
-#define PA_SIMULATE_UNDERFLOW_ (0) /* Set to one to force an underflow of the output buffer. */
-
-#define PA_USE_HIGH_LATENCY_ (0) /* For debugging glitches. */
-
-#if PA_USE_HIGH_LATENCY_
- #define PA_MIN_MSEC_PER_HOST_BUFFER_ (100)
- #define PA_MAX_MSEC_PER_HOST_BUFFER_ (300) /* Do not exceed unless user buffer exceeds */
- #define PA_MIN_NUM_HOST_BUFFERS_ (4)
- #define PA_MAX_NUM_HOST_BUFFERS_ (16) /* OK to exceed if necessary */
- #define PA_WIN_9X_LATENCY_ (400)
-#else
- #define PA_MIN_MSEC_PER_HOST_BUFFER_ (10)
- #define PA_MAX_MSEC_PER_HOST_BUFFER_ (100) /* Do not exceed unless user buffer exceeds */
- #define PA_MIN_NUM_HOST_BUFFERS_ (3)
- #define PA_MAX_NUM_HOST_BUFFERS_ (16) /* OK to exceed if necessary */
- #define PA_WIN_9X_LATENCY_ (200)
-#endif
-
-#define PA_MIN_TIMEOUT_MSEC_ (1000)
-
-/*
-** Use higher latency for NT because it is even worse at real-time
-** operation than Win9x.
-*/
-#define PA_WIN_NT_LATENCY_ (PA_WIN_9X_LATENCY_ * 2)
-#define PA_WIN_WDM_LATENCY_ (PA_WIN_9X_LATENCY_)
-
-
-static const char constInputMapperSuffix_[] = " - Input";
-static const char constOutputMapperSuffix_[] = " - Output";
-
-
-typedef struct PaWinMmeStream PaWinMmeStream; /* forward reference */
-
-/* prototypes for functions declared in this file */
-
-PaError PaWinMme_Initialize( PaUtilHostApiRepresentation **hostApi, PaHostApiIndex hostApiIndex );
-static void Terminate( struct PaUtilHostApiRepresentation *hostApi );
-static PaError OpenStream( struct PaUtilHostApiRepresentation *hostApi,
- PaStream** stream,
- const PaStreamParameters *inputParameters,
- const PaStreamParameters *outputParameters,
- double sampleRate,
- unsigned long framesPerBuffer,
- PaStreamFlags streamFlags,
- PaStreamCallback *streamCallback,
- void *userData );
-static PaError IsFormatSupported( struct PaUtilHostApiRepresentation *hostApi,
- const PaStreamParameters *inputParameters,
- const PaStreamParameters *outputParameters,
- double sampleRate );
-static PaError CloseStream( PaStream* stream );
-static PaError StartStream( PaStream *stream );
-static PaError StopStream( PaStream *stream );
-static PaError AbortStream( PaStream *stream );
-static PaError IsStreamStopped( PaStream *s );
-static PaError IsStreamActive( PaStream *stream );
-static PaTime GetStreamTime( PaStream *stream );
-static double GetStreamCpuLoad( PaStream* stream );
-static PaError ReadStream( PaStream* stream, void *buffer, unsigned long frames );
-static PaError WriteStream( PaStream* stream, void *buffer, unsigned long frames );
-static signed long GetStreamReadAvailable( PaStream* stream );
-static signed long GetStreamWriteAvailable( PaStream* stream );
-
-static PaError UpdateStreamTime( PaWinMmeStream *stream );
-
-/* macros for setting last host error information */
-
-#ifdef UNICODE
-
-#define PA_MME_SET_LAST_WAVEIN_ERROR( mmresult ) \
- { \
- wchar_t mmeErrorTextWide[ MAXERRORLENGTH ]; \
- char mmeErrorText[ MAXERRORLENGTH ]; \
- waveInGetErrorText( mmresult, mmeErrorTextWide, MAXERRORLENGTH ); \
- WideCharToMultiByte( CP_ACP, WC_COMPOSITECHECK | WC_DEFAULTCHAR,\
- mmeErrorTextWide, -1, mmeErrorText, MAXERRORLENGTH, NULL, NULL ); \
- PaUtil_SetLastHostErrorInfo( paMME, mmresult, mmeErrorText ); \
- }
-
-#define PA_MME_SET_LAST_WAVEOUT_ERROR( mmresult ) \
- { \
- wchar_t mmeErrorTextWide[ MAXERRORLENGTH ]; \
- char mmeErrorText[ MAXERRORLENGTH ]; \
- waveOutGetErrorText( mmresult, mmeErrorTextWide, MAXERRORLENGTH ); \
- WideCharToMultiByte( CP_ACP, WC_COMPOSITECHECK | WC_DEFAULTCHAR,\
- mmeErrorTextWide, -1, mmeErrorText, MAXERRORLENGTH, NULL, NULL ); \
- PaUtil_SetLastHostErrorInfo( paMME, mmresult, mmeErrorText ); \
- }
-
-#else /* !UNICODE */
-
-#define PA_MME_SET_LAST_WAVEIN_ERROR( mmresult ) \
- { \
- char mmeErrorText[ MAXERRORLENGTH ]; \
- waveInGetErrorText( mmresult, mmeErrorText, MAXERRORLENGTH ); \
- PaUtil_SetLastHostErrorInfo( paMME, mmresult, mmeErrorText ); \
- }
-
-#define PA_MME_SET_LAST_WAVEOUT_ERROR( mmresult ) \
- { \
- char mmeErrorText[ MAXERRORLENGTH ]; \
- waveOutGetErrorText( mmresult, mmeErrorText, MAXERRORLENGTH ); \
- PaUtil_SetLastHostErrorInfo( paMME, mmresult, mmeErrorText ); \
- }
-
-#endif /* UNICODE */
-
-
-static void PaMme_SetLastSystemError( DWORD errorCode )
-{
- LPVOID lpMsgBuf;
- FormatMessage(
- FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
- NULL,
- errorCode,
- MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
- (LPTSTR) &lpMsgBuf,
- 0,
- NULL
- );
- PaUtil_SetLastHostErrorInfo( paMME, errorCode, lpMsgBuf );
- LocalFree( lpMsgBuf );
-}
-
-#define PA_MME_SET_LAST_SYSTEM_ERROR( errorCode ) \
- PaMme_SetLastSystemError( errorCode )
-
-
-/* PaWinMmeHostApiRepresentation - host api datastructure specific to this implementation */
-
-typedef struct
-{
- PaUtilHostApiRepresentation inheritedHostApiRep;
- PaUtilStreamInterface callbackStreamInterface;
- PaUtilStreamInterface blockingStreamInterface;
-
- PaUtilAllocationGroup *allocations;
-
- int numInputDevices, numOutputDevices;
-
- /** winMmeDeviceIds is an array of WinMme device ids.
- fields in the range [0, numInputDevices) are input device ids,
- and [numInputDevices, numInputDevices + numOutputDevices) are output
- device ids.
- */
- int *winMmeDeviceIds;
-}
-PaWinMmeHostApiRepresentation;
-
-
-/*************************************************************************
- * Returns recommended device ID.
- * On the PC, the recommended device can be specified by the user by
- * setting an environment variable. For example, to use device #1.
- *
- * set PA_RECOMMENDED_OUTPUT_DEVICE=1
- *
- * The user should first determine the available device ID by using
- * the supplied application "pa_devs".
- */
-#define PA_ENV_BUF_SIZE_ (32)
-#define PA_REC_IN_DEV_ENV_NAME_ ("PA_RECOMMENDED_INPUT_DEVICE")
-#define PA_REC_OUT_DEV_ENV_NAME_ ("PA_RECOMMENDED_OUTPUT_DEVICE")
-static PaDeviceIndex GetEnvDefaultDeviceID( char *envName )
-{
- PaDeviceIndex recommendedIndex = paNoDevice;
- DWORD hresult;
- char envbuf[PA_ENV_BUF_SIZE_];
-
-#ifndef WIN32_PLATFORM_PSPC /* no GetEnvironmentVariable on PocketPC */
-
- /* Let user determine default device by setting environment variable. */
- hresult = GetEnvironmentVariable( envName, envbuf, PA_ENV_BUF_SIZE_ );
- if( (hresult > 0) && (hresult < PA_ENV_BUF_SIZE_) )
- {
- recommendedIndex = atoi( envbuf );
- }
-#endif
-
- return recommendedIndex;
-}
-
-static void InitializeDefaultDeviceIdsFromEnv( PaWinMmeHostApiRepresentation *hostApi )
-{
- PaDeviceIndex device;
-
- /* input */
- device = GetEnvDefaultDeviceID( PA_REC_IN_DEV_ENV_NAME_ );
- if( device != paNoDevice &&
- ( device >= 0 && device < hostApi->inheritedHostApiRep.info.deviceCount ) &&
- hostApi->inheritedHostApiRep.deviceInfos[ device ]->maxInputChannels > 0 )
- {
- hostApi->inheritedHostApiRep.info.defaultInputDevice = device;
- }
-
- /* output */
- device = GetEnvDefaultDeviceID( PA_REC_OUT_DEV_ENV_NAME_ );
- if( device != paNoDevice &&
- ( device >= 0 && device < hostApi->inheritedHostApiRep.info.deviceCount ) &&
- hostApi->inheritedHostApiRep.deviceInfos[ device ]->maxOutputChannels > 0 )
- {
- hostApi->inheritedHostApiRep.info.defaultOutputDevice = device;
- }
-}
-
-
-/** Convert external PA ID to a windows multimedia device ID
-*/
-static int LocalDeviceIndexToWinMmeDeviceId( PaWinMmeHostApiRepresentation *hostApi, PaDeviceIndex device )
-{
- assert( device >= 0 && device < hostApi->numInputDevices + hostApi->numOutputDevices );
-
- return hostApi->winMmeDeviceIds[ device ];
-}
-
-
-static PaError InitializeInputDeviceInfo( PaWinMmeHostApiRepresentation *winMmeHostApi,
- PaDeviceInfo *deviceInfo, int winMmeInputDeviceId, int *success )
-{
- PaError result = paNoError;
- char *deviceName; /* non-const ptr */
- MMRESULT mmresult;
- WAVEINCAPS wic;
-
- *success = 0;
-
- mmresult = waveInGetDevCaps( winMmeInputDeviceId, &wic, sizeof( WAVEINCAPS ) );
- if( mmresult == MMSYSERR_NOMEM )
- {
- result = paInsufficientMemory;
- goto error;
- }
- else if( mmresult != MMSYSERR_NOERROR )
- {
- /* instead of returning paUnanticipatedHostError we return
- paNoError, but leave success set as 0. This allows
- Pa_Initialize to just ignore this device, without failing
- the entire initialisation process.
- */
- return paNoError;
- }
-
- if( winMmeInputDeviceId == WAVE_MAPPER )
- {
- /* Append I/O suffix to WAVE_MAPPER device. */
- deviceName = (char *)PaUtil_GroupAllocateMemory(
- winMmeHostApi->allocations, strlen( wic.szPname ) + 1 + sizeof(constInputMapperSuffix_) );
- if( !deviceName )
- {
- result = paInsufficientMemory;
- goto error;
- }
- strcpy( deviceName, wic.szPname );
- strcat( deviceName, constInputMapperSuffix_ );
- }
- else
- {
- deviceName = (char*)PaUtil_GroupAllocateMemory(
- winMmeHostApi->allocations, strlen( wic.szPname ) + 1 );
- if( !deviceName )
- {
- result = paInsufficientMemory;
- goto error;
- }
- strcpy( deviceName, wic.szPname );
- }
- deviceInfo->name = deviceName;
-
- deviceInfo->maxInputChannels = wic.wChannels;
- /* Sometimes a device can return a rediculously large number of channels.
- * This happened with an SBLive card on a Windows ME box.
- * If that happens, then force it to 2 channels. PLB20010413
- */
- if( (deviceInfo->maxInputChannels < 1) || (deviceInfo->maxInputChannels > 256) )
- {
- PA_DEBUG(("Pa_GetDeviceInfo: Num input channels reported as %d! Changed to 2.\n", deviceInfo->maxInputChannels ));
- deviceInfo->maxInputChannels = 2;
- }
-
- deviceInfo->defaultSampleRate = 0.; /* @todo IMPLEMENT ME */
-
- *success = 1;
-
-error:
- return result;
-}
-
-
-static PaError InitializeOutputDeviceInfo( PaWinMmeHostApiRepresentation *winMmeHostApi,
- PaDeviceInfo *deviceInfo, int winMmeOutputDeviceId, int *success )
-{
- PaError result = paNoError;
- char *deviceName; /* non-const ptr */
- MMRESULT mmresult;
- WAVEOUTCAPS woc;
-
- *success = 0;
-
- mmresult = waveOutGetDevCaps( winMmeOutputDeviceId, &woc, sizeof( WAVEOUTCAPS ) );
- if( mmresult == MMSYSERR_NOMEM )
- {
- result = paInsufficientMemory;
- goto error;
- }
- else if( mmresult != MMSYSERR_NOERROR )
- {
- /* instead of returning paUnanticipatedHostError we return
- paNoError, but leave success set as 0. This allows
- Pa_Initialize to just ignore this device, without failing
- the entire initialisation process.
- */
- return paNoError;
- }
-
- if( winMmeOutputDeviceId == WAVE_MAPPER )
- {
- /* Append I/O suffix to WAVE_MAPPER device. */
- deviceName = (char *)PaUtil_GroupAllocateMemory(
- winMmeHostApi->allocations, strlen( woc.szPname ) + 1 + sizeof(constOutputMapperSuffix_) );
- if( !deviceName )
- {
- result = paInsufficientMemory;
- goto error;
- }
- strcpy( deviceName, woc.szPname );
- strcat( deviceName, constOutputMapperSuffix_ );
- }
- else
- {
- deviceName = (char*)PaUtil_GroupAllocateMemory(
- winMmeHostApi->allocations, strlen( woc.szPname ) + 1 );
- if( !deviceName )
- {
- result = paInsufficientMemory;
- goto error;
- }
- strcpy( deviceName, woc.szPname );
- }
- deviceInfo->name = deviceName;
-
- deviceInfo->maxOutputChannels = woc.wChannels;
- /* Sometimes a device can return a rediculously large number of channels.
- * This happened with an SBLive card on a Windows ME box.
- * It also happens on Win XP!
- */
- if( (deviceInfo->maxOutputChannels < 1) || (deviceInfo->maxOutputChannels > 256) )
- {
- PA_DEBUG(("Pa_GetDeviceInfo: Num output channels reported as %d! Changed to 2.\n", deviceInfo->maxOutputChannels ));
- deviceInfo->maxOutputChannels = 2;
- }
-
- deviceInfo->defaultSampleRate = 0.; /* @todo IMPLEMENT ME */
-
- *success = 1;
-
-error:
- return result;
-}
-
-
-PaError PaWinMme_Initialize( PaUtilHostApiRepresentation **hostApi, PaHostApiIndex hostApiIndex )
-{
- PaError result = paNoError;
- int i;
- PaWinMmeHostApiRepresentation *winMmeHostApi;
- int numInputDevices, numOutputDevices, maximumPossibleNumDevices;
- PaDeviceInfo *deviceInfoArray;
- int deviceInfoInitializationSucceeded;
-
- winMmeHostApi = (PaWinMmeHostApiRepresentation*)PaUtil_AllocateMemory( sizeof(PaWinMmeHostApiRepresentation) );
- if( !winMmeHostApi )
- {
- result = paInsufficientMemory;
- goto error;
- }
-
- winMmeHostApi->allocations = PaUtil_CreateAllocationGroup();
- if( !winMmeHostApi->allocations )
- {
- result = paInsufficientMemory;
- goto error;
- }
-
- *hostApi = &winMmeHostApi->inheritedHostApiRep;
- (*hostApi)->info.structVersion = 1;
- (*hostApi)->info.type = paMME;
- (*hostApi)->info.name = "MME";
-
-
- /* initialise device counts and default devices under the assumption that
- there are no devices. These values are incremented below if and when
- devices are successfully initialized.
- */
- (*hostApi)->info.deviceCount = 0;
- (*hostApi)->info.defaultInputDevice = paNoDevice;
- (*hostApi)->info.defaultOutputDevice = paNoDevice;
- winMmeHostApi->numInputDevices = 0;
- winMmeHostApi->numOutputDevices = 0;
-
-
- maximumPossibleNumDevices = 0;
-
- numInputDevices = waveInGetNumDevs();
- if( numInputDevices > 0 )
- maximumPossibleNumDevices += numInputDevices + 1; /* assume there is a WAVE_MAPPER */
-
- numOutputDevices = waveOutGetNumDevs();
- if( numOutputDevices > 0 )
- maximumPossibleNumDevices += numOutputDevices + 1; /* assume there is a WAVE_MAPPER */
-
-
- if( maximumPossibleNumDevices > 0 ){
-
- (*hostApi)->deviceInfos = (PaDeviceInfo**)PaUtil_GroupAllocateMemory(
- winMmeHostApi->allocations, sizeof(PaDeviceInfo*) * maximumPossibleNumDevices );
- if( !(*hostApi)->deviceInfos )
- {
- result = paInsufficientMemory;
- goto error;
- }
-
- /* allocate all device info structs in a contiguous block */
- deviceInfoArray = (PaDeviceInfo*)PaUtil_GroupAllocateMemory(
- winMmeHostApi->allocations, sizeof(PaDeviceInfo) * maximumPossibleNumDevices );
- if( !deviceInfoArray )
- {
- result = paInsufficientMemory;
- goto error;
- }
-
- winMmeHostApi->winMmeDeviceIds = (int*)PaUtil_GroupAllocateMemory(
- winMmeHostApi->allocations, sizeof(int) * maximumPossibleNumDevices );
- if( !winMmeHostApi->winMmeDeviceIds )
- {
- result = paInsufficientMemory;
- goto error;
- }
-
- if( numInputDevices > 0 ){
- // -1 is the WAVE_MAPPER
- for( i = -1; i < numInputDevices; ++i ){
- PaDeviceInfo *deviceInfo = &deviceInfoArray[ (*hostApi)->info.deviceCount ];
- deviceInfo->structVersion = 2;
- deviceInfo->hostApi = hostApiIndex;
-
- deviceInfo->maxInputChannels = 0;
- deviceInfo->maxOutputChannels = 0;
-
- deviceInfo->defaultLowInputLatency = 0.; /* @todo IMPLEMENT ME */
- deviceInfo->defaultLowOutputLatency = 0.; /* @todo IMPLEMENT ME */
- deviceInfo->defaultHighInputLatency = 0.; /* @todo IMPLEMENT ME */
- deviceInfo->defaultHighOutputLatency = 0.; /* @todo IMPLEMENT ME */
-
- result = InitializeInputDeviceInfo( winMmeHostApi, deviceInfo, i, &deviceInfoInitializationSucceeded );
- if( result != paNoError )
- goto error;
-
- if( deviceInfoInitializationSucceeded ){
- if( (*hostApi)->info.defaultInputDevice == paNoDevice )
- (*hostApi)->info.defaultInputDevice = (*hostApi)->info.deviceCount;
-
- winMmeHostApi->winMmeDeviceIds[ (*hostApi)->info.deviceCount ] = i;
- (*hostApi)->deviceInfos[ (*hostApi)->info.deviceCount ] = deviceInfo;
-
- winMmeHostApi->numInputDevices++;
- (*hostApi)->info.deviceCount++;
- }
- }
- }
-
- if( numOutputDevices > 0 ){
- // -1 is the WAVE_MAPPER
- for( i = -1; i < numOutputDevices; ++i ){
- PaDeviceInfo *deviceInfo = &deviceInfoArray[ (*hostApi)->info.deviceCount ];
- deviceInfo->structVersion = 2;
- deviceInfo->hostApi = hostApiIndex;
-
- deviceInfo->maxInputChannels = 0;
- deviceInfo->maxOutputChannels = 0;
-
- deviceInfo->defaultLowInputLatency = 0.; /* @todo IMPLEMENT ME */
- deviceInfo->defaultLowOutputLatency = 0.; /* @todo IMPLEMENT ME */
- deviceInfo->defaultHighInputLatency = 0.; /* @todo IMPLEMENT ME */
- deviceInfo->defaultHighOutputLatency = 0.; /* @todo IMPLEMENT ME */
-
- result = InitializeOutputDeviceInfo( winMmeHostApi, deviceInfo, i, &deviceInfoInitializationSucceeded );
- if( result != paNoError )
- goto error;
-
- if( deviceInfoInitializationSucceeded ){
- if( (*hostApi)->info.defaultOutputDevice == paNoDevice )
- (*hostApi)->info.defaultOutputDevice = (*hostApi)->info.deviceCount;
-
- winMmeHostApi->winMmeDeviceIds[ (*hostApi)->info.deviceCount ] = i;
- (*hostApi)->deviceInfos[ (*hostApi)->info.deviceCount ] = deviceInfo;
-
- winMmeHostApi->numOutputDevices++;
- (*hostApi)->info.deviceCount++;
- }
- }
- }
- }
-
-
- InitializeDefaultDeviceIdsFromEnv( winMmeHostApi );
-
- (*hostApi)->Terminate = Terminate;
- (*hostApi)->OpenStream = OpenStream;
- (*hostApi)->IsFormatSupported = IsFormatSupported;
-
- PaUtil_InitializeStreamInterface( &winMmeHostApi->callbackStreamInterface, CloseStream, StartStream,
- StopStream, AbortStream, IsStreamStopped, IsStreamActive,
- GetStreamTime, GetStreamCpuLoad,
- PaUtil_DummyReadWrite, PaUtil_DummyReadWrite, PaUtil_DummyGetAvailable, PaUtil_DummyGetAvailable );
-
- PaUtil_InitializeStreamInterface( &winMmeHostApi->blockingStreamInterface, CloseStream, StartStream,
- StopStream, AbortStream, IsStreamStopped, IsStreamActive,
- GetStreamTime, PaUtil_DummyGetCpuLoad,
- ReadStream, WriteStream, GetStreamReadAvailable, GetStreamWriteAvailable );
-
- return result;
-
-error:
- if( winMmeHostApi )
- {
- if( winMmeHostApi->allocations )
- {
- PaUtil_FreeAllAllocations( winMmeHostApi->allocations );
- PaUtil_DestroyAllocationGroup( winMmeHostApi->allocations );
- }
-
- PaUtil_FreeMemory( winMmeHostApi );
- }
-
- return result;
-}
-
-
-static void Terminate( struct PaUtilHostApiRepresentation *hostApi )
-{
- PaWinMmeHostApiRepresentation *winMmeHostApi = (PaWinMmeHostApiRepresentation*)hostApi;
-
- if( winMmeHostApi->allocations )
- {
- PaUtil_FreeAllAllocations( winMmeHostApi->allocations );
- PaUtil_DestroyAllocationGroup( winMmeHostApi->allocations );
- }
-
- PaUtil_FreeMemory( winMmeHostApi );
-}
-
-
-static PaError IsFormatSupported( struct PaUtilHostApiRepresentation *hostApi,
- const PaStreamParameters *inputParameters,
- const PaStreamParameters *outputParameters,
- double sampleRate )
-{
- int inputChannelCount, outputChannelCount;
- PaSampleFormat inputSampleFormat, outputSampleFormat;
-
- if( inputParameters )
- {
- inputChannelCount = inputParameters->channelCount;
- inputSampleFormat = inputParameters->sampleFormat;
-
- /* unless alternate device specification is supported, reject the use of
- paUseHostApiSpecificDeviceSpecification */
-
- if( inputParameters->device == paUseHostApiSpecificDeviceSpecification )
- return paInvalidDevice;
-
- /* check that input device can support inputChannelCount */
- if( inputChannelCount > hostApi->deviceInfos[ inputParameters->device ]->maxInputChannels )
- return paInvalidChannelCount;
-
- /* validate inputStreamInfo */
- if( inputParameters->hostApiSpecificStreamInfo )
- return paIncompatibleHostApiSpecificStreamInfo; /* this implementation doesn't use custom stream info */
- }
- else
- {
- inputChannelCount = 0;
- }
-
- if( outputParameters )
- {
- outputChannelCount = outputParameters->channelCount;
- outputSampleFormat = outputParameters->sampleFormat;
-
- /* unless alternate device specification is supported, reject the use of
- paUseHostApiSpecificDeviceSpecification */
-
- if( outputParameters->device == paUseHostApiSpecificDeviceSpecification )
- return paInvalidDevice;
-
- /* check that output device can support inputChannelCount */
- if( outputChannelCount > hostApi->deviceInfos[ outputParameters->device ]->maxOutputChannels )
- return paInvalidChannelCount;
-
- /* validate outputStreamInfo */
- if( outputParameters->hostApiSpecificStreamInfo )
- return paIncompatibleHostApiSpecificStreamInfo; /* this implementation doesn't use custom stream info */
- }
- else
- {
- outputChannelCount = 0;
- }
-
- /*
- IMPLEMENT ME:
- - check that input device can support inputSampleFormat, or that
- we have the capability to convert from outputSampleFormat to
- a native format
-
- - check that output device can support outputSampleFormat, or that
- we have the capability to convert from outputSampleFormat to
- a native format
-
- - if a full duplex stream is requested, check that the combination
- of input and output parameters is supported
-
- - check that the device supports sampleRate
- */
-
- return paFormatIsSupported;
-}
-
-
-/* CalculateBufferSettings() fills the framesPerHostInputBuffer, numHostInputBuffers,
- framesPerHostOutputBuffer and numHostOutputBuffers parameters based on the values
- of the other parameters.
-
-*/
-
-static PaError CalculateBufferSettings(
- unsigned long *framesPerHostInputBuffer, unsigned long *numHostInputBuffers,
- unsigned long *framesPerHostOutputBuffer, unsigned long *numHostOutputBuffers,
- int inputChannelCount, PaSampleFormat hostInputSampleFormat,
- PaTime suggestedInputLatency, PaWinMmeStreamInfo *inputStreamInfo,
- int outputChannelCount, PaSampleFormat hostOutputSampleFormat,
- PaTime suggestedOutputLatency, PaWinMmeStreamInfo *outputStreamInfo,
- double sampleRate, unsigned long framesPerBuffer )
-{
- PaError result = paNoError;
-
- if( inputChannelCount > 0 )
- {
- if( inputStreamInfo )
- {
- if( inputStreamInfo->flags & PaWinMmeUseLowLevelLatencyParameters )
- {
- if( inputStreamInfo->numBuffers <= 0
- || inputStreamInfo->framesPerBuffer <= 0 )
- {
- result = paIncompatibleHostApiSpecificStreamInfo;
- goto error;
- }
-
- *framesPerHostInputBuffer = inputStreamInfo->framesPerBuffer;
- *numHostInputBuffers = inputStreamInfo->numBuffers;
- }
- }
- else
- {
- /* hardwire for now, FIXME */
- /* don't forget that there will be one more buffer than the number required to achieve the requested latency */
- *framesPerHostInputBuffer = 4096;
- *numHostInputBuffers = 4;
-
- /*
- Need to determine the right heuristic for mapping latency in
- seconds to buffer sizes and number of buffers.
-
- - for output don't allocate less than 1+1 buffers
-
- - for input don't allocate less than 2+1 buffers
- (less than 1+1 if input only)
-
- - don't allocate buffers smaller than framesPerBuffer
-
- - if the client doesn't care about the buffer size use a power
- of two buffer size. otherwise use a multiple of the user
- buffer size. if the user buffer size is a power of 2, it
- might be wise to make the host buffer size a power of 2 too.
-
- - there probably shouldn't be too many buffers ( 3 to 10 seems
- reasonable).
-
- - aside from a limit on what constitutes a "reasonable" number
- of buffers, there should be as many buffers as possible,
- because this will place a less bursty load on CPU resources
-
- - the host buffers should be as big as practical (ie multiple
- user buffers per host buffer).
-
-
- . One way to achieve the above is to say: Try to have 8
- host buffers, and host buffers cannot be larger than 32k
- unless the user buffer size requires it"
- I say 32k because buffers larger than this are known to
- crash some drivers (Turtle Beach for example.)
-
- just some idle rambling:
-
- if( framesPerBuffer == 0 ){
- // use a power of two buffer size
-
- }else{
- latencySamples = ceil(requestedLatency * sampleRate)
-
- numBuffers = ceil(latencySamples / framesPerBuffer);
-
- bufferSize = framesPerBuffer;
-
- minBuffers = ( inputChannelCount > 0 && outputChannelCount > 0 ) ? 2 : 1;
-
- if( numBuffers <= minBuffers ){
- numBuffers = minBuffers;
- }else{
- make buffer size a multiple of framesPerBuffer until numBuffers is
- greater than 4 and less than 10.
- }
- }
- */
- }
- }
- else
- {
- *framesPerHostInputBuffer = 0;
- *numHostInputBuffers = 0;
- }
-
- if( outputChannelCount > 0 )
- {
- if( outputStreamInfo )
- {
- if( outputStreamInfo->flags & PaWinMmeUseLowLevelLatencyParameters )
- {
- if( outputStreamInfo->numBuffers <= 0
- || outputStreamInfo->framesPerBuffer <= 0 )
- {
- result = paIncompatibleHostApiSpecificStreamInfo;
- goto error;
- }
-
- *framesPerHostOutputBuffer = outputStreamInfo->framesPerBuffer;
- *numHostOutputBuffers = outputStreamInfo->numBuffers;
- }
- }
- else
- {
- /* hardwire for now, FIXME */
- /* don't forget that there will be one more buffer than the number required to achieve the requested latency */
- *framesPerHostOutputBuffer = 4096;
- *numHostOutputBuffers = 4;
- }
- }
- else
- {
- *framesPerHostOutputBuffer = 0;
- *numHostOutputBuffers = 0;
- }
-
-error:
- return result;
-}
-
-
-
-typedef HWAVEIN MmeHandle;
-
-static PaError InitializeBufferSet( WAVEHDR **bufferSet, int numBuffers, int bufferBytes,
- int isInput, /* if 0, then output */
- MmeHandle mmeWaveHandle, int numDeviceChannels )
-{
- PaError result = paNoError;
- MMRESULT mmresult;
- int i;
-
- *bufferSet = 0;
-
- /* Allocate an array to hold the buffer pointers. */
- *bufferSet = (WAVEHDR *) PaUtil_AllocateMemory( sizeof(WAVEHDR)*numBuffers );
- if( !*bufferSet )
- {
- result = paInsufficientMemory;
- goto error;
- }
-
- for( i=0; i<numBuffers; ++i )
- {
- (*bufferSet)[i].lpData = 0;
- }
-
- /* Allocate each buffer. */
- for( i=0; i<numBuffers; ++i )
- {
- (*bufferSet)[i].lpData = (char *)PaUtil_AllocateMemory( bufferBytes );
- if( !(*bufferSet)[i].lpData )
- {
- result = paInsufficientMemory;
- goto error;
- }
- (*bufferSet)[i].dwBufferLength = bufferBytes;
- (*bufferSet)[i].dwUser = 0xFFFFFFFF; /* indicates unprepared to error clean up code */
-
- if( isInput )
- {
- mmresult = waveInPrepareHeader( mmeWaveHandle, &(*bufferSet)[i], sizeof(WAVEHDR) );
- if( mmresult != MMSYSERR_NOERROR )
- {
- result = paUnanticipatedHostError;
- PA_MME_SET_LAST_WAVEIN_ERROR( mmresult );
- goto error;
- }
- }
- else /* output */
- {
- mmresult = waveOutPrepareHeader( (HWAVEOUT)mmeWaveHandle, &(*bufferSet)[i], sizeof(WAVEHDR) );
- if( mmresult != MMSYSERR_NOERROR )
- {
- result = paUnanticipatedHostError;
- PA_MME_SET_LAST_WAVEOUT_ERROR( mmresult );
- goto error;
- }
- }
-
- (*bufferSet)[i].dwUser = numDeviceChannels;
- }
-
- return result;
-
-error:
- if( *bufferSet )
- {
- for( i=0; i<numBuffers; ++i )
- {
- if( (*bufferSet)[i].lpData )
- {
-
- if( (*bufferSet)[i].dwUser != 0xFFFFFFFF )
- {
- if( isInput )
- waveInUnprepareHeader( mmeWaveHandle, &(*bufferSet)[i], sizeof(WAVEHDR) );
- else
- waveOutUnprepareHeader( (HWAVEOUT)mmeWaveHandle, &(*bufferSet)[i], sizeof(WAVEHDR) );
- }
- PaUtil_FreeMemory( (*bufferSet)[i].lpData );
- }
- }
-
- PaUtil_FreeMemory( *bufferSet );
- }
-
- return result;
-}
-
-
-static void TerminateBufferSet( WAVEHDR * *bufferSet, unsigned int numBuffers, int isInput, MmeHandle mmeWaveHandle )
-{
- unsigned int i;
-
- for( i=0; i<numBuffers; ++i )
- {
- if( (*bufferSet)[i].lpData )
- {
- if( isInput )
- waveInUnprepareHeader( mmeWaveHandle, &(*bufferSet)[i], sizeof(WAVEHDR) );
- else
- waveOutUnprepareHeader( (HWAVEOUT)mmeWaveHandle, &(*bufferSet)[i], sizeof(WAVEHDR) );
-
- PaUtil_FreeMemory( (*bufferSet)[i].lpData );
- }
- }
-
- if( *bufferSet )
- PaUtil_FreeMemory( *bufferSet );
-}
-
-
-/* PaWinMmeStream - a stream data structure specifically for this implementation */
-
-typedef struct PaWinMmeStream
-{
- PaUtilStreamRepresentation streamRepresentation;
- PaUtilCpuLoadMeasurer cpuLoadMeasurer;
- PaUtilBufferProcessor bufferProcessor;
-
- CRITICAL_SECTION lock;
-
- /* Input -------------- */
- HWAVEIN *hWaveIns;
- unsigned int numInputDevices;
- /* unsigned int inputChannelCount; */
- WAVEHDR **inputBuffers;
- unsigned int numInputBuffers;
- unsigned int currentInputBufferIndex;
- unsigned int framesPerInputBuffer;
- unsigned int framesUsedInCurrentInputBuffer;
-
- /* Output -------------- */
- HWAVEOUT *hWaveOuts;
- unsigned int numOutputDevices;
- /* unsigned int outputChannelCount; */
- WAVEHDR **outputBuffers;
- unsigned int numOutputBuffers;
- unsigned int currentOutputBufferIndex;
- unsigned int framesPerOutputBuffer;
- unsigned int framesUsedInCurrentOutputBuffer;
-
- /* Processing thread management -------------- */
- HANDLE abortEvent;
- HANDLE bufferEvent;
- HANDLE processingThread;
- DWORD processingThreadId;
-
- char noHighPriorityProcessClass;
- char useTimeCriticalProcessingThreadPriority;
- char throttleProcessingThreadOnOverload; /* 0 -> don't throtte, non-0 -> throttle */
- int processingThreadPriority;
- int highThreadPriority;
- int throttledThreadPriority;
-
- volatile int isActive;
- volatile int stopProcessing; /* stop thread once existing buffers have been returned */
- volatile int abortProcessing; /* stop thread immediately */
-
- DWORD allBuffersDurationMs; /* used to calculate timeouts */
-
- /* @todo FIXME: we no longer need the following for GetStreamTime support */
- /* GetStreamTime() support ------------- */
-
- PaTime streamPosition;
- long previousStreamPosition; /* used to track frames played. */
-}
-PaWinMmeStream;
-
-
-/* the following macros are intended to improve the readability of the following code */
-#define PA_IS_INPUT_STREAM_( stream ) ( stream ->hWaveIns )
-#define PA_IS_OUTPUT_STREAM_( stream ) ( stream ->hWaveOuts )
-#define PA_IS_FULL_DUPLEX_STREAM_( stream ) ( stream ->hWaveIns && stream ->hWaveOuts )
-
-
-static PaError OpenStream( struct PaUtilHostApiRepresentation *hostApi,
- PaStream** s,
- const PaStreamParameters *inputParameters,
- const PaStreamParameters *outputParameters,
- double sampleRate,
- unsigned long framesPerBuffer,
- PaStreamFlags streamFlags,
- PaStreamCallback *streamCallback,
- void *userData )
-{
- PaError result = paNoError;
- PaWinMmeHostApiRepresentation *winMmeHostApi = (PaWinMmeHostApiRepresentation*)hostApi;
- PaWinMmeStream *stream = 0;
- PaSampleFormat hostInputSampleFormat, hostOutputSampleFormat;
- int inputChannelCount, outputChannelCount;
- PaSampleFormat inputSampleFormat, outputSampleFormat;
- double suggestedInputLatency, suggestedOutputLatency;
- PaWinMmeStreamInfo *inputStreamInfo, *outputStreamInfo;
- unsigned long bytesPerInputFrame, bytesPerOutputFrame;
- unsigned long framesPerHostInputBuffer;
- unsigned long numHostInputBuffers;
- unsigned long framesPerHostOutputBuffer;
- unsigned long numHostOutputBuffers;
- unsigned long framesPerBufferProcessorCall;
- int lockInited = 0;
- int bufferEventInited = 0;
- int abortEventInited = 0;
- WAVEFORMATEX wfx;
- MMRESULT mmresult;
- unsigned int i;
- int channelCount;
- PaWinMmeDeviceAndChannelCount *inputDevices = 0;
- unsigned long numInputDevices = (inputParameters) ? 1 : 0;
- PaWinMmeDeviceAndChannelCount *outputDevices = 0;
- unsigned long numOutputDevices = (outputParameters) ? 1 : 0;
- char noHighPriorityProcessClass = 0;
- char useTimeCriticalProcessingThreadPriority = 0;
- char throttleProcessingThreadOnOverload = 1;
-
-
- if( inputParameters )
- {
- inputChannelCount = inputParameters->channelCount;
- inputSampleFormat = inputParameters->sampleFormat;
- suggestedInputLatency = inputParameters->suggestedLatency;
-
- /* check that input device can support inputChannelCount */
- if( (inputParameters->device != paUseHostApiSpecificDeviceSpecification) &&
- (inputChannelCount > hostApi->deviceInfos[ inputParameters->device ]->maxInputChannels) )
- return paInvalidChannelCount;
-
-
- /* validate input hostApiSpecificStreamInfo */
- inputStreamInfo = (PaWinMmeStreamInfo*)inputParameters->hostApiSpecificStreamInfo;
- if( inputStreamInfo )
- {
- if( inputStreamInfo->size != sizeof( PaWinMmeStreamInfo )
- || inputStreamInfo->version != 1 )
- {
- return paIncompatibleHostApiSpecificStreamInfo;
- }
-
- if( inputStreamInfo->flags & PaWinMmeNoHighPriorityProcessClass )
- noHighPriorityProcessClass = 1;
- if( inputStreamInfo->flags & PaWinMmeDontThrottleOverloadedProcessingThread )
- throttleProcessingThreadOnOverload = 0;
- if( inputStreamInfo->flags & PaWinMmeUseTimeCriticalThreadPriority )
- useTimeCriticalProcessingThreadPriority = 1;
-
- /* validate multidevice fields */
-
- if( inputStreamInfo->flags & PaWinMmeUseMultipleDevices )
- {
- int totalChannels = 0;
- for( i=0; i< inputStreamInfo->deviceCount; ++i )
- {
- /* validate that the device number is within range, and that
- the number of channels is legal */
- PaDeviceIndex hostApiDevice;
-
- if( inputParameters->device != paUseHostApiSpecificDeviceSpecification )
- return paInvalidDevice;
-
- channelCount = inputStreamInfo->devices[i].channelCount;
-
- result = PaUtil_DeviceIndexToHostApiDeviceIndex( &hostApiDevice,
- inputStreamInfo->devices[i].device, hostApi );
- if( result != paNoError )
- return result;
-
- if( channelCount < 1 || channelCount > hostApi->deviceInfos[ hostApiDevice ]->maxInputChannels )
- return paInvalidChannelCount;
-
- /* FIXME this validation might be easier and better if there was a pautil
- function which performed the validation in pa_front:ValidateOpenStreamParameters() */
-
- totalChannels += channelCount;
- }
-
- if( totalChannels != inputChannelCount )
- {
- /* inputChannelCount must match total channels specified by multiple devices */
- return paInvalidChannelCount; /* REVIEW use of this error code */
- }
-
- inputDevices = inputStreamInfo->devices;
- numInputDevices = inputStreamInfo->deviceCount;
- }
- }
-
- /* FIXME: establish which host formats are available */
- hostInputSampleFormat =
- PaUtil_SelectClosestAvailableFormat( paInt16 /* native formats */, inputSampleFormat );
-
- }
- else
- {
- inputChannelCount = 0;
- inputSampleFormat = -1;
- suggestedInputLatency = 0.;
- inputStreamInfo = 0;
- hostInputSampleFormat = -1;
- }
-
-
- if( outputParameters )
- {
- outputChannelCount = outputParameters->channelCount;
- outputSampleFormat = outputParameters->sampleFormat;
- suggestedOutputLatency = outputParameters->suggestedLatency;
-
- /* check that input device can support inputChannelCount */
- if( (outputParameters->device != paUseHostApiSpecificDeviceSpecification) &&
- (inputChannelCount > hostApi->deviceInfos[ outputParameters->device ]->maxOutputChannels) )
- return paInvalidChannelCount;
-
-
- /* validate input hostApiSpecificStreamInfo */
- outputStreamInfo = (PaWinMmeStreamInfo*)outputParameters->hostApiSpecificStreamInfo;
- if( outputStreamInfo )
- {
- if( outputStreamInfo->size != sizeof( PaWinMmeStreamInfo )
- || outputStreamInfo->version != 1 )
- {
- return paIncompatibleHostApiSpecificStreamInfo;
- }
-
- if( outputStreamInfo->flags & PaWinMmeNoHighPriorityProcessClass )
- noHighPriorityProcessClass = 1;
- if( outputStreamInfo->flags & PaWinMmeDontThrottleOverloadedProcessingThread )
- throttleProcessingThreadOnOverload = 0;
- if( outputStreamInfo->flags & PaWinMmeUseTimeCriticalThreadPriority )
- useTimeCriticalProcessingThreadPriority = 1;
-
- /* validate multidevice fields */
-
- if( outputStreamInfo->flags & PaWinMmeUseMultipleDevices )
- {
- int totalChannels = 0;
- for( i=0; i< outputStreamInfo->deviceCount; ++i )
- {
- /* validate that the device number is within range, and that
- the number of channels is legal */
- PaDeviceIndex hostApiDevice;
-
- if( outputParameters->device != paUseHostApiSpecificDeviceSpecification )
- return paInvalidDevice;
-
- channelCount = outputStreamInfo->devices[i].channelCount;
-
- result = PaUtil_DeviceIndexToHostApiDeviceIndex( &hostApiDevice,
- outputStreamInfo->devices[i].device,
- hostApi );
- if( result != paNoError )
- return result;
-
- if( channelCount < 1 || channelCount > hostApi->deviceInfos[ hostApiDevice ]->maxOutputChannels )
- return paInvalidChannelCount;
-
- /* FIXME this validation might be easier and better if there was a pautil
- function which performed the validation in pa_front:ValidateOpenStreamParameters() */
-
- totalChannels += channelCount;
- }
-
- if( totalChannels != outputChannelCount )
- {
- /* outputChannelCount must match total channels specified by multiple devices */
- return paInvalidChannelCount; /* REVIEW use of this error code */
- }
-
- outputDevices = outputStreamInfo->devices;
- numOutputDevices = outputStreamInfo->deviceCount;
- }
- }
-
- /* FIXME: establish which host formats are available */
- hostOutputSampleFormat =
- PaUtil_SelectClosestAvailableFormat( paInt16 /* native formats */, outputSampleFormat );
- }
- else
- {
- outputChannelCount = 0;
- outputSampleFormat = -1;
- outputStreamInfo = 0;
- hostOutputSampleFormat = -1;
- suggestedOutputLatency = 0.;
- }
-
-
- /*
- IMPLEMENT ME:
- - alter sampleRate to a close allowable rate if possible / necessary
- */
-
-
- /* validate platform specific flags */
- if( (streamFlags & paPlatformSpecificFlags) != 0 )
- return paInvalidFlag; /* unexpected platform specific flag */
-
-
- result = CalculateBufferSettings( &framesPerHostInputBuffer, &numHostInputBuffers,
- &framesPerHostOutputBuffer, &numHostOutputBuffers,
- inputChannelCount, hostInputSampleFormat, suggestedInputLatency, inputStreamInfo,
- outputChannelCount, hostOutputSampleFormat, suggestedOutputLatency, outputStreamInfo,
- sampleRate, framesPerBuffer );
- if( result != paNoError )
- goto error;
-
-
- stream = (PaWinMmeStream*)PaUtil_AllocateMemory( sizeof(PaWinMmeStream) );
- if( !stream )
- {
- result = paInsufficientMemory;
- goto error;
- }
-
- stream->hWaveIns = 0;
- stream->inputBuffers = 0;
- stream->hWaveOuts = 0;
- stream->outputBuffers = 0;
- stream->processingThread = 0;
-
- stream->noHighPriorityProcessClass = noHighPriorityProcessClass;
- stream->useTimeCriticalProcessingThreadPriority = useTimeCriticalProcessingThreadPriority;
- stream->throttleProcessingThreadOnOverload = throttleProcessingThreadOnOverload;
-
- PaUtil_InitializeStreamRepresentation( &stream->streamRepresentation,
- &winMmeHostApi->callbackStreamInterface, streamCallback, userData );
-
- stream->streamRepresentation.streamInfo.inputLatency = (double)(framesPerHostInputBuffer * (numHostInputBuffers-1)) / sampleRate;
- stream->streamRepresentation.streamInfo.outputLatency = (double)(framesPerHostOutputBuffer * (numHostOutputBuffers-1)) / sampleRate;
- stream->streamRepresentation.streamInfo.sampleRate = sampleRate;
-
- PaUtil_InitializeCpuLoadMeasurer( &stream->cpuLoadMeasurer, sampleRate );
-
-
- if( inputParameters && outputParameters ) /* full duplex */
- {
- /*
- either host input and output buffers must be the same size, or the
- larger one must be an integer multiple of the smaller one.
- FIXME: should this return an error if the host specific latency
- settings don't fulfill these constraints? rb: probably
- */
-
- if( framesPerHostInputBuffer < framesPerHostOutputBuffer )
- {
- assert( (framesPerHostOutputBuffer % framesPerHostInputBuffer) == 0 );
-
- framesPerBufferProcessorCall = framesPerHostInputBuffer;
- }
- else
- {
- assert( (framesPerHostInputBuffer % framesPerHostOutputBuffer) == 0 );
-
- framesPerBufferProcessorCall = framesPerHostOutputBuffer;
- }
- }
- else if( inputParameters )
- {
- framesPerBufferProcessorCall = framesPerHostInputBuffer;
- }
- else if( outputParameters )
- {
- framesPerBufferProcessorCall = framesPerHostOutputBuffer;
- }
-
- stream->framesPerInputBuffer = framesPerHostInputBuffer;
- stream->framesPerOutputBuffer = framesPerHostOutputBuffer;
-
- result = PaUtil_InitializeBufferProcessor( &stream->bufferProcessor,
- inputChannelCount, inputSampleFormat, hostInputSampleFormat,
- outputChannelCount, outputSampleFormat, hostOutputSampleFormat,
- sampleRate, streamFlags, framesPerBuffer,
- framesPerBufferProcessorCall, paUtilFixedHostBufferSize,
- streamCallback, userData );
- if( result != paNoError )
- goto error;
-
- stream->isActive = 0;
-
- stream->streamPosition = 0.;
- stream->previousStreamPosition = 0;
-
-
- stream->bufferEvent = CreateEvent( NULL, FALSE, FALSE, NULL );
- if( stream->bufferEvent == NULL )
- {
- result = paUnanticipatedHostError;
- PA_MME_SET_LAST_SYSTEM_ERROR( GetLastError() );
- goto error;
- }
- bufferEventInited = 1;
-
- if( inputParameters )
- {
- wfx.wFormatTag = WAVE_FORMAT_PCM;
- wfx.nSamplesPerSec = (DWORD) sampleRate;
- wfx.cbSize = 0;
-
- stream->numInputDevices = numInputDevices;
- stream->hWaveIns = (HWAVEIN*)PaUtil_AllocateMemory( sizeof(HWAVEIN) * stream->numInputDevices );
- if( !stream->hWaveIns )
- {
- result = paInsufficientMemory;
- goto error;
- }
-
- for( i = 0; i < stream->numInputDevices; ++i )
- stream->hWaveIns[i] = 0;
-
- for( i = 0; i < stream->numInputDevices; ++i )
- {
- int inputWinMmeId;
-
- if( inputDevices )
- {
- PaDeviceIndex hostApiDevice;
-
- result = PaUtil_DeviceIndexToHostApiDeviceIndex( &hostApiDevice,
- inputDevices[i].device, hostApi );
- if( result != paNoError )
- return result;
-
- inputWinMmeId = LocalDeviceIndexToWinMmeDeviceId( winMmeHostApi, hostApiDevice );
- wfx.nChannels = (WORD) inputDevices[i].channelCount;
- }
- else
- {
- inputWinMmeId = LocalDeviceIndexToWinMmeDeviceId( winMmeHostApi, inputParameters->device );
- wfx.nChannels = (WORD) inputChannelCount;
- }
-
- bytesPerInputFrame = wfx.nChannels * stream->bufferProcessor.bytesPerHostInputSample;
-
- wfx.nAvgBytesPerSec = (DWORD)(bytesPerInputFrame * sampleRate);
- wfx.nBlockAlign = (WORD)bytesPerInputFrame;
- wfx.wBitsPerSample = (WORD)((bytesPerInputFrame/wfx.nChannels) * 8);
-
- /* REVIEW: consider not firing an event for input when a full duplex stream is being used */
-
- mmresult = waveInOpen( &stream->hWaveIns[i], inputWinMmeId, &wfx,
- (DWORD)stream->bufferEvent, (DWORD) stream, CALLBACK_EVENT );
- if( mmresult != MMSYSERR_NOERROR )
- {
- switch( mmresult )
- {
- case MMSYSERR_ALLOCATED: /* Specified resource is already allocated. */
- result = paDeviceUnavailable;
- break;
- case MMSYSERR_BADDEVICEID: /* Specified device identifier is out of range. */
- result = paInternalError; /* portaudio should ensure that only good device ids are used */
- break;
- case MMSYSERR_NODRIVER: /* No device driver is present. */
- result = paDeviceUnavailable;
- break;
- case MMSYSERR_NOMEM: /* Unable to allocate or lock memory. */
- result = paInsufficientMemory;
- break;
- case WAVERR_BADFORMAT: /* Attempted to open with an unsupported waveform-audio format. */
- result = paInternalError; /* REVIEW: port audio shouldn't get this far without using compatible format info */
- break;
- default:
- result = paUnanticipatedHostError;
- PA_MME_SET_LAST_WAVEIN_ERROR( mmresult );
- }
- goto error;
- }
- }
- }
-
- if( outputParameters )
- {
- wfx.wFormatTag = WAVE_FORMAT_PCM;
- wfx.nSamplesPerSec = (DWORD) sampleRate;
- wfx.cbSize = 0;
-
- stream->numOutputDevices = numOutputDevices;
- stream->hWaveOuts = (HWAVEOUT*)PaUtil_AllocateMemory( sizeof(HWAVEOUT) * stream->numOutputDevices );
- if( !stream->hWaveOuts )
- {
- result = paInsufficientMemory;
- goto error;
- }
-
- for( i = 0; i < stream->numOutputDevices; ++i )
- stream->hWaveOuts[i] = 0;
-
- for( i = 0; i < stream->numOutputDevices; ++i )
- {
- int outputWinMmeId;
-
- if( outputDevices )
- {
- PaDeviceIndex hostApiDevice;
-
- result = PaUtil_DeviceIndexToHostApiDeviceIndex( &hostApiDevice,
- outputDevices[i].device, hostApi );
- if( result != paNoError )
- return result;
-
- outputWinMmeId = LocalDeviceIndexToWinMmeDeviceId( winMmeHostApi, hostApiDevice );
- wfx.nChannels = (WORD) outputDevices[i].channelCount;
- }
- else
- {
- outputWinMmeId = LocalDeviceIndexToWinMmeDeviceId( winMmeHostApi, outputParameters->device );
- wfx.nChannels = (WORD) outputChannelCount;
- }
-
- bytesPerOutputFrame = wfx.nChannels * stream->bufferProcessor.bytesPerHostOutputSample;
-
- wfx.nAvgBytesPerSec = (DWORD)(bytesPerOutputFrame * sampleRate);
- wfx.nBlockAlign = (WORD)bytesPerOutputFrame;
- wfx.wBitsPerSample = (WORD)((bytesPerOutputFrame/wfx.nChannels) * 8);
-
- mmresult = waveOutOpen( &stream->hWaveOuts[i], outputWinMmeId, &wfx,
- (DWORD)stream->bufferEvent, (DWORD) stream, CALLBACK_EVENT );
- if( mmresult != MMSYSERR_NOERROR )
- {
- switch( mmresult )
- {
- case MMSYSERR_ALLOCATED: /* Specified resource is already allocated. */
- result = paDeviceUnavailable;
- break;
- case MMSYSERR_BADDEVICEID: /* Specified device identifier is out of range. */
- result = paInternalError; /* portaudio should ensure that only good device ids are used */
- break;
- case MMSYSERR_NODRIVER: /* No device driver is present. */
- result = paDeviceUnavailable;
- break;
- case MMSYSERR_NOMEM: /* Unable to allocate or lock memory. */
- result = paInsufficientMemory;
- break;
- case WAVERR_BADFORMAT: /* Attempted to open with an unsupported waveform-audio format. */
- result = paInternalError; /* REVIEW: port audio shouldn't get this far without using compatible format info */
- break;
- default:
- result = paUnanticipatedHostError;
- PA_MME_SET_LAST_WAVEOUT_ERROR( mmresult );
- }
- goto error;
- }
- }
- }
-
- if( PA_IS_INPUT_STREAM_(stream) )
- {
- stream->inputBuffers = (WAVEHDR**)PaUtil_AllocateMemory( sizeof(WAVEHDR*) * stream->numInputDevices );
- if( stream->inputBuffers == 0 )
- {
- result = paInsufficientMemory;
- goto error;
- }
-
- for( i =0; i < stream->numInputDevices; ++i )
- stream->inputBuffers[i] = 0;
-
- stream->numInputBuffers = numHostInputBuffers;
-
- for( i =0; i < stream->numInputDevices; ++i )
- {
- int hostInputBufferBytes = Pa_GetSampleSize( hostInputSampleFormat ) *
- framesPerHostInputBuffer *
- ((inputDevices) ? inputDevices[i].channelCount : inputChannelCount);
- if( hostInputBufferBytes < 0 )
- {
- result = paInternalError;
- goto error;
- }
-
- result = InitializeBufferSet( &stream->inputBuffers[i], numHostInputBuffers, hostInputBufferBytes,
- 1 /* isInput */,
- (MmeHandle)stream->hWaveIns[i],
- ((inputDevices) ? inputDevices[i].channelCount : inputChannelCount) );
-
- if( result != paNoError )
- goto error;
- }
- }
-
- if( PA_IS_OUTPUT_STREAM_(stream) )
- {
- stream->outputBuffers = (WAVEHDR**)PaUtil_AllocateMemory( sizeof(WAVEHDR*) * stream->numOutputDevices );
- if( stream->outputBuffers == 0 )
- {
- result = paInsufficientMemory;
- goto error;
- }
-
- for( i =0; i < stream->numOutputDevices; ++i )
- stream->outputBuffers[i] = 0;
-
- stream->numOutputBuffers = numHostOutputBuffers;
-
- for( i=0; i < stream->numOutputDevices; ++i )
- {
- int hostOutputBufferBytes = Pa_GetSampleSize( hostOutputSampleFormat ) *
- framesPerHostOutputBuffer *
- ((outputDevices) ? outputDevices[i].channelCount : outputChannelCount);
- if( hostOutputBufferBytes < 0 )
- {
- result = paInternalError;
- goto error;
- }
-
- result = InitializeBufferSet( &stream->outputBuffers[i], numHostOutputBuffers, hostOutputBufferBytes,
- 0 /* not isInput */,
- (MmeHandle)stream->hWaveOuts[i],
- ((outputDevices) ? outputDevices[i].channelCount : outputChannelCount) );
-
- if( result != paNoError )
- goto error;
- }
- }
-
- stream->abortEvent = CreateEvent( NULL, TRUE, FALSE, NULL );
- if( stream->abortEvent == NULL )
- {
- result = paUnanticipatedHostError;
- PA_MME_SET_LAST_SYSTEM_ERROR( GetLastError() );
- goto error;
- }
- abortEventInited = 1;
-
- InitializeCriticalSection( &stream->lock );
- lockInited = 1;
-
- if( PA_IS_OUTPUT_STREAM_(stream) )
- stream->allBuffersDurationMs = (DWORD) (1000.0 * (framesPerHostOutputBuffer * stream->numOutputBuffers) / sampleRate);
- else
- stream->allBuffersDurationMs = (DWORD) (1000.0 * (framesPerHostInputBuffer * stream->numInputBuffers) / sampleRate);
-
-
- *s = (PaStream*)stream;
-
- return result;
-
-error:
- if( lockInited )
- DeleteCriticalSection( &stream->lock );
-
- if( abortEventInited )
- CloseHandle( stream->abortEvent );
-
-
- if( stream->inputBuffers )
- {
- for( i =0 ; i< stream->numInputDevices; ++i )
- {
- if( stream->inputBuffers[i] )
- {
- TerminateBufferSet( &stream->inputBuffers[i], stream->numInputBuffers,
- 1 /* isInput */, (MmeHandle)stream->hWaveIns[i] );
- }
- }
-
- PaUtil_FreeMemory( stream->inputBuffers );
- }
-
- if( stream->outputBuffers )
- {
- for( i =0 ; i< stream->numOutputDevices; ++i )
- {
- if( stream->outputBuffers[i] )
- {
- TerminateBufferSet( &stream->outputBuffers[i], stream->numOutputBuffers,
- 0 /* not isInput */, (MmeHandle)stream->hWaveOuts[i] );
- }
- }
-
- PaUtil_FreeMemory( stream->outputBuffers );
- }
-
- if( stream->hWaveIns )
- {
- for( i =0 ; i< stream->numInputDevices; ++i )
- {
- if( stream->hWaveIns[i] )
- waveInClose( stream->hWaveIns[i] );
- }
-
- PaUtil_FreeMemory( stream->hWaveIns );
- }
-
- if( stream->hWaveOuts )
- {
- for( i =0 ; i< stream->numOutputDevices; ++i )
- {
- if( stream->hWaveOuts[i] )
- waveOutClose( stream->hWaveOuts[i] );
- }
-
- PaUtil_FreeMemory( stream->hWaveOuts );
- }
-
- if( bufferEventInited )
- CloseHandle( stream->bufferEvent );
-
- if( stream )
- PaUtil_FreeMemory( stream );
-
- return result;
-}
-
-
-/* return non-zero if any output buffers are queued */
-static int OutputBuffersAreQueued( PaWinMmeStream *stream )
-{
- int result = 0;
- unsigned int i, j;
-
- if( PA_IS_OUTPUT_STREAM_( stream ) )
- {
- for( i=0; i<stream->numOutputBuffers; ++i )
- {
- for( j=0; j < stream->numOutputDevices; ++j )
- {
- if( !( stream->outputBuffers[ j ][ i ].dwFlags & WHDR_DONE) )
- {
- result++;
- }
- }
- }
- }
-
- return result;
-}
-
-
-static PaError AdvanceToNextInputBuffer( PaWinMmeStream *stream )
-{
- PaError result = paNoError;
- MMRESULT mmresult;
- unsigned int i;
-
- for( i=0; i< stream->numInputDevices; ++i )
- {
- mmresult = waveInAddBuffer( stream->hWaveIns[i],
- &stream->inputBuffers[i][ stream->currentInputBufferIndex ],
- sizeof(WAVEHDR) );
- if( mmresult != MMSYSERR_NOERROR )
- {
- result = paUnanticipatedHostError;
- PA_MME_SET_LAST_WAVEIN_ERROR( mmresult );
- }
- }
- stream->currentInputBufferIndex = (stream->currentInputBufferIndex+1 >= stream->numInputBuffers) ?
- 0 : stream->currentInputBufferIndex+1;
-
- stream->framesUsedInCurrentInputBuffer = 0;
-
- return result;
-}
-
-
-static PaError AdvanceToNextOutputBuffer( PaWinMmeStream *stream )
-{
- PaError result = paNoError;
- MMRESULT mmresult;
- unsigned int i;
-
- for( i=0; i< stream->numOutputDevices; ++i )
- {
- mmresult = waveOutWrite( stream->hWaveOuts[i],
- &stream->outputBuffers[i][ stream->currentOutputBufferIndex ],
- sizeof(WAVEHDR) );
- if( mmresult != MMSYSERR_NOERROR )
- {
- result = paUnanticipatedHostError;
- PA_MME_SET_LAST_WAVEOUT_ERROR( mmresult );
- }
- }
-
- stream->currentOutputBufferIndex = (stream->currentOutputBufferIndex+1 >= stream->numOutputBuffers) ?
- 0 : stream->currentOutputBufferIndex+1;
-
- stream->framesUsedInCurrentOutputBuffer = 0;
-
- return result;
-}
-
-
-static DWORD WINAPI ProcessingThreadProc( void *pArg )
-{
- PaWinMmeStream *stream = (PaWinMmeStream *)pArg;
- HANDLE events[2];
- int numEvents = 0;
- DWORD result = paNoError;
- DWORD waitResult;
-/** @todo:
-Gordon Gidluck:
-> function: ProcessingThreadProc()
-> line #1665 DWORD timeout = stream->allBuffersDurationMs * 0.5;
-> conversion from 'double ' to 'unsigned long ', possible loss of data
-*/
- DWORD timeout = stream->allBuffersDurationMs * 0.5;
- DWORD numTimeouts = 0;
- int hostBuffersAvailable;
- signed int hostInputBufferIndex, hostOutputBufferIndex;
- int callbackResult;
- int done = 0;
- unsigned int channel, i, j;
- unsigned long framesProcessed;
-
- /* prepare event array for call to WaitForMultipleObjects() */
- events[numEvents++] = stream->bufferEvent;
- events[numEvents++] = stream->abortEvent;
-
- /* loop until something causes us to stop */
- while( !done )
- {
- /* wait for MME to signal that a buffer is available, or for
- the PA abort event to be signaled */
- waitResult = WaitForMultipleObjects( numEvents, events, FALSE, timeout );
- if( waitResult == WAIT_FAILED )
- {
- result = paUnanticipatedHostError;
- /* FIXME/REVIEW: can't return host error info from an asyncronous thread */
- done = 1;
- }
- else if( waitResult == WAIT_TIMEOUT )
- {
- /* if a timeout is encountered, continue */
- numTimeouts += 1;
- }
-
- if( stream->abortProcessing )
- {
- /* Pa_AbortStream() has been called, stop processing immediately */
- done = 1;
- }
- else if( stream->stopProcessing )
- {
- /* Pa_StopStream() has been called or the user callback returned
- non-zero, processing will continue until all output buffers
- are marked as done. The stream will stop immediately if it
- is input-only.
- */
-
- if( !OutputBuffersAreQueued( stream ) )
- {
- done = 1; /* Will cause thread to return. */
- }
- }
- else
- {
- hostBuffersAvailable = 1;
-
- /* process all available host buffers */
- do
- {
- hostInputBufferIndex = -1;
- hostOutputBufferIndex = -1;
-
- if( PA_IS_INPUT_STREAM_(stream))
- {
- hostInputBufferIndex = stream->currentInputBufferIndex;
- for( i=0; i<stream->numInputDevices; ++i )
- {
- if( !(stream->inputBuffers[i][ stream->currentInputBufferIndex ].dwFlags & WHDR_DONE) )
- {
- hostInputBufferIndex = -1;
- break;
- }
- }
-
- if( hostInputBufferIndex != -1 )
- {
- /* if all of the other buffers are also ready then we dicard all but the
- most recent. */
- int inputCatchUp = 1;
-
- for( i=0; i < stream->numInputBuffers && inputCatchUp == 1; ++i )
- {
- for( j=0; j<stream->numInputDevices; ++j )
- {
- if( !(stream->inputBuffers[ j ][ i ].dwFlags & WHDR_DONE) )
- {
- inputCatchUp = 0;
- break;
- }
- }
- }
-
- if( inputCatchUp )
- {
- for( i=0; i < stream->numInputBuffers - 1; ++i )
- {
- result = AdvanceToNextInputBuffer( stream );
- if( result != paNoError )
- done = 1;
- }
- }
- }
- }
-
- if( PA_IS_OUTPUT_STREAM_(stream) )
- {
- hostOutputBufferIndex = stream->currentOutputBufferIndex;
- for( i=0; i<stream->numOutputDevices; ++i )
- {
- if( !(stream->outputBuffers[i][ stream->currentOutputBufferIndex ].dwFlags & WHDR_DONE) )
- {
- hostOutputBufferIndex = -1;
- break;
- }
- }
-
- if( hostOutputBufferIndex != - 1 )
- {
- /* if all of the other buffers are also ready, catch up by copying
- the most recently generated buffer into all but one of the output
- buffers */
- int outputCatchUp = 1;
-
- for( i=0; i < stream->numOutputBuffers && outputCatchUp == 1; ++i )
- {
- for( j=0; j<stream->numOutputDevices; ++j )
- {
- if( !(stream->outputBuffers[ j ][ i ].dwFlags & WHDR_DONE) )
- {
- outputCatchUp = 0;
- break;
- }
- }
- }
-
- if( outputCatchUp )
- {
- /* FIXME: this is an output underflow buffer slip and should be flagged as such */
- unsigned int previousBufferIndex = (stream->currentOutputBufferIndex==0)
- ? stream->numOutputBuffers - 1
- : stream->currentOutputBufferIndex - 1;
-
- for( i=0; i < stream->numOutputBuffers - 1; ++i )
- {
- for( j=0; j<stream->numOutputDevices; ++j )
- {
- if( stream->outputBuffers[j][ stream->currentOutputBufferIndex ].lpData
- != stream->outputBuffers[j][ previousBufferIndex ].lpData )
- {
- CopyMemory( stream->outputBuffers[j][ stream->currentOutputBufferIndex ].lpData,
- stream->outputBuffers[j][ previousBufferIndex ].lpData,
- stream->outputBuffers[j][ stream->currentOutputBufferIndex ].dwBufferLength );
- }
- }
-
- result = AdvanceToNextOutputBuffer( stream );
- if( result != paNoError )
- done = 1;
- }
- }
- }
- }
-
-
- if( (PA_IS_FULL_DUPLEX_STREAM_(stream) && hostInputBufferIndex != -1 && hostOutputBufferIndex != -1) ||
- (!PA_IS_FULL_DUPLEX_STREAM_(stream) && ( hostInputBufferIndex != -1 || hostOutputBufferIndex != -1 ) ) )
- {
- PaStreamCallbackTimeInfo timeInfo = {0,0,0}; /* @todo implement inputBufferAdcTime and currentTime */
-
-
- if( hostOutputBufferIndex != -1 ){
- MMTIME time;
- double now;
- long totalRingFrames;
- long ringPosition;
- long playbackPosition;
-
- time.wType = TIME_SAMPLES;
- waveOutGetPosition( stream->hWaveOuts[0], &time, sizeof(MMTIME) );
- now = PaUtil_GetTime();
-
- totalRingFrames = stream->numOutputBuffers * stream->bufferProcessor.framesPerHostBuffer;
-
- ringPosition = stream->currentOutputBufferIndex * stream->bufferProcessor.framesPerHostBuffer;
-
- playbackPosition = time.u.sample % totalRingFrames;
-
- if( playbackPosition >= ringPosition ){
- timeInfo.outputBufferDacTime =
- now + ((double)( ringPosition + (totalRingFrames - playbackPosition) ) * stream->bufferProcessor.samplePeriod );
- }else{
- timeInfo.outputBufferDacTime =
- now + ((double)( ringPosition - playbackPosition ) * stream->bufferProcessor.samplePeriod );
- }
- }
-
-
- PaUtil_BeginCpuLoadMeasurement( &stream->cpuLoadMeasurer );
-
- PaUtil_BeginBufferProcessing( &stream->bufferProcessor, &timeInfo );
-
- if( hostInputBufferIndex != -1 )
- {
- PaUtil_SetInputFrameCount( &stream->bufferProcessor, 0 /* default to host buffer size */ );
-
- channel = 0;
- for( i=0; i<stream->numInputDevices; ++i )
- {
- /* we have stored the number of channels in the buffer in dwUser */
- int channelCount = stream->inputBuffers[i][ hostInputBufferIndex ].dwUser;
-
- PaUtil_SetInterleavedInputChannels( &stream->bufferProcessor, channel,
- stream->inputBuffers[i][ hostInputBufferIndex ].lpData +
- stream->framesUsedInCurrentInputBuffer * channelCount *
- stream->bufferProcessor.bytesPerHostInputSample,
- channelCount );
-
-
- channel += channelCount;
- }
- }
-
- if( hostOutputBufferIndex != -1 )
- {
- PaUtil_SetOutputFrameCount( &stream->bufferProcessor, 0 /* default to host buffer size */ );
-
- channel = 0;
- for( i=0; i<stream->numOutputDevices; ++i )
- {
- /* we have stored the number of channels in the buffer in dwUser */
- int channelCount = stream->outputBuffers[i][ hostOutputBufferIndex ].dwUser;
-
- PaUtil_SetInterleavedOutputChannels( &stream->bufferProcessor, channel,
- stream->outputBuffers[i][ hostOutputBufferIndex ].lpData +
- stream->framesUsedInCurrentOutputBuffer * channelCount *
- stream->bufferProcessor.bytesPerHostOutputSample,
- channelCount );
-
- /* we have stored the number of channels in the buffer in dwUser */
- channel += channelCount;
- }
- }
-
- framesProcessed = PaUtil_EndBufferProcessing( &stream->bufferProcessor, &callbackResult );
-
- stream->framesUsedInCurrentInputBuffer += framesProcessed;
- stream->framesUsedInCurrentOutputBuffer += framesProcessed;
-
- PaUtil_EndCpuLoadMeasurement( &stream->cpuLoadMeasurer, framesProcessed );
-
- if( callbackResult == paContinue )
- {
- /* nothing special to do */
- }
- else if( callbackResult == paAbort )
- {
- stream->abortProcessing = 1;
- done = 1;
- /* FIXME: should probably do a reset here */
- result = paNoError;
- }
- else
- {
- /* User cllback has asked us to stop with paComplete or other non-zero value */
- stream->stopProcessing = 1; /* stop once currently queued audio has finished */
- result = paNoError;
- }
-
- /*
- FIXME: the following code is incorrect, because stopProcessing should
- still queue the current buffer.
- */
- if( stream->stopProcessing == 0 && stream->abortProcessing == 0 )
- {
- if( stream->throttleProcessingThreadOnOverload != 0 )
- {
- if( PaUtil_GetCpuLoad( &stream->cpuLoadMeasurer ) > 1. )
- {
- if( stream->processingThreadPriority != stream->throttledThreadPriority )
- {
- SetThreadPriority( stream->processingThread, stream->throttledThreadPriority );
- stream->processingThreadPriority = stream->throttledThreadPriority;
- }
-
-/** @todo:
-Gordon Gidluck:
-> function: ProcessingThreadProc()
-> line #1947/1948 Sleep( stream->bufferProcessor.framesPerHostBuffer *
-> stream->bufferProcessor.samplePeriod * .25 );
-> conversion from 'double ' to 'unsigned long ', possible loss of data
-> integral size mismatch in argument; conversion supplied
-*/
- /* sleep for a quater of a buffer's duration to give other processes a go */
- Sleep( stream->bufferProcessor.framesPerHostBuffer *
- stream->bufferProcessor.samplePeriod * .25 );
- }
- else
- {
- if( stream->processingThreadPriority != stream->highThreadPriority )
- {
- SetThreadPriority( stream->processingThread, stream->highThreadPriority );
- stream->processingThreadPriority = stream->highThreadPriority;
- }
- }
- }
-
- if( PA_IS_INPUT_STREAM_(stream) &&
- stream->framesUsedInCurrentInputBuffer == stream->framesPerInputBuffer )
- {
- result = AdvanceToNextInputBuffer( stream );
- if( result != paNoError )
- done = 1;
- }
-
- if( PA_IS_OUTPUT_STREAM_(stream) &&
- stream->framesUsedInCurrentOutputBuffer == stream->framesPerOutputBuffer )
- {
- result = AdvanceToNextOutputBuffer( stream );
- if( result != paNoError )
- done = 1;
- }
- }
- }
- else
- {
- hostBuffersAvailable = 0;
- }
- }
- while( hostBuffersAvailable &&
- stream->stopProcessing == 0 &&
- stream->abortProcessing == 0 &&
- !done );
- }
-
- result = UpdateStreamTime( stream );
- if( result != paNoError )
- done = 1;
- }
-
- stream->isActive = 0;
-
- if( stream->streamRepresentation.streamFinishedCallback != 0 )
- stream->streamRepresentation.streamFinishedCallback( stream->streamRepresentation.userData );
-
- return result;
-}
-
-
-/*
- When CloseStream() is called, the multi-api layer ensures that
- the stream has already been stopped or aborted.
-*/
-static PaError CloseStream( PaStream* s )
-{
- PaError result = paNoError;
- PaWinMmeStream *stream = (PaWinMmeStream*)s;
- MMRESULT mmresult;
- unsigned int i;
-
- if( PA_IS_INPUT_STREAM_(stream) )
- {
- for( i=0; i<stream->numInputDevices; ++i )
- {
- TerminateBufferSet( &stream->inputBuffers[i], stream->numInputBuffers,
- 1 /* isInput */, (MmeHandle)stream->hWaveIns[i] );
- }
-
- PaUtil_FreeMemory( stream->inputBuffers );
- }
-
- if( PA_IS_OUTPUT_STREAM_(stream) )
- {
- for( i=0; i<stream->numOutputDevices; ++i )
- {
- TerminateBufferSet( &stream->outputBuffers[i], stream->numOutputBuffers,
- 0 /* not isInput */, (MmeHandle)stream->hWaveOuts[i] );
- }
-
- PaUtil_FreeMemory( stream->outputBuffers );
- }
-
-
- if( PA_IS_INPUT_STREAM_(stream) )
- {
- for( i=0; i<stream->numInputDevices; ++i )
- {
- mmresult = waveInClose( stream->hWaveIns[i] );
- if( mmresult != MMSYSERR_NOERROR )
- {
- result = paUnanticipatedHostError;
- PA_MME_SET_LAST_WAVEIN_ERROR( mmresult );
- goto error;
- }
- }
-
- PaUtil_FreeMemory( stream->hWaveIns );
- }
-
- if( PA_IS_OUTPUT_STREAM_(stream) )
- {
- for( i=0; i<stream->numOutputDevices; ++i )
- {
- mmresult = waveOutClose( stream->hWaveOuts[i] );
- if( mmresult != MMSYSERR_NOERROR )
- {
- result = paUnanticipatedHostError;
- PA_MME_SET_LAST_WAVEOUT_ERROR( mmresult );
- goto error;
- }
- }
-
- PaUtil_FreeMemory( stream->hWaveOuts );
- }
-
- if( CloseHandle( stream->bufferEvent ) == 0 )
- {
- result = paUnanticipatedHostError;
- PA_MME_SET_LAST_SYSTEM_ERROR( GetLastError() );
- goto error;
- }
-
- if( CloseHandle( stream->abortEvent ) == 0 )
- {
- result = paUnanticipatedHostError;
- PA_MME_SET_LAST_SYSTEM_ERROR( GetLastError() );
- goto error;
- }
-
- DeleteCriticalSection( &stream->lock );
-
- PaUtil_TerminateBufferProcessor( &stream->bufferProcessor );
- PaUtil_TerminateStreamRepresentation( &stream->streamRepresentation );
- PaUtil_FreeMemory( stream );
-
-error:
- /* FIXME: consider how to best clean up on failure */
- return result;
-}
-
-
-static PaError StartStream( PaStream *s )
-{
- PaError result = paNoError;
- PaWinMmeStream *stream = (PaWinMmeStream*)s;
- MMRESULT mmresult;
- unsigned int i, j;
-
- if( PA_IS_INPUT_STREAM_(stream) )
- {
- for( i=0; i<stream->numInputBuffers; ++i )
- {
- for( j=0; j<stream->numInputDevices; ++j )
- {
- mmresult = waveInAddBuffer( stream->hWaveIns[j], &stream->inputBuffers[j][i], sizeof(WAVEHDR) );
- if( mmresult != MMSYSERR_NOERROR )
- {
- result = paUnanticipatedHostError;
- PA_MME_SET_LAST_WAVEIN_ERROR( mmresult );
- goto error;
- }
- }
- }
- stream->currentInputBufferIndex = 0;
- stream->framesUsedInCurrentInputBuffer = 0;
- }
-
- if( PA_IS_OUTPUT_STREAM_(stream) )
- {
- for( i=0; i<stream->numOutputDevices; ++i )
- {
- if( (mmresult = waveOutPause( stream->hWaveOuts[i] )) != MMSYSERR_NOERROR )
- {
- result = paUnanticipatedHostError;
- PA_MME_SET_LAST_WAVEOUT_ERROR( mmresult );
- goto error;
- }
- }
-
- for( i=0; i<stream->numOutputBuffers; ++i )
- {
- for( j=0; j<stream->numOutputDevices; ++j )
- {
- ZeroMemory( stream->outputBuffers[j][i].lpData, stream->outputBuffers[j][i].dwBufferLength );
- mmresult = waveOutWrite( stream->hWaveOuts[j], &stream->outputBuffers[j][i], sizeof(WAVEHDR) );
- if( mmresult != MMSYSERR_NOERROR )
- {
- result = paUnanticipatedHostError;
- PA_MME_SET_LAST_WAVEOUT_ERROR( mmresult );
- goto error;
- }
- }
- }
- stream->currentOutputBufferIndex = 0;
- stream->framesUsedInCurrentOutputBuffer = 0;
- }
-
- stream->streamPosition = 0.;
- stream->previousStreamPosition = 0;
-
- stream->isActive = 1;
- stream->stopProcessing = 0;
- stream->abortProcessing = 0;
-
- if( ResetEvent( stream->bufferEvent ) == 0 )
- {
- result = paUnanticipatedHostError;
- PA_MME_SET_LAST_SYSTEM_ERROR( GetLastError() );
- goto error;
- }
-
- if( ResetEvent( stream->abortEvent ) == 0 )
- {
- result = paUnanticipatedHostError;
- PA_MME_SET_LAST_SYSTEM_ERROR( GetLastError() );
- goto error;
- }
-
- /* Create thread that waits for audio buffers to be ready for processing. */
- stream->processingThread = CreateThread( 0, 0, ProcessingThreadProc, stream, 0, &stream->processingThreadId );
- if( !stream->processingThread )
- {
- result = paUnanticipatedHostError;
- PA_MME_SET_LAST_SYSTEM_ERROR( GetLastError() );
- goto error;
- }
-
- /* I used to pass the thread which was failing. I now pass GetCurrentProcess().
- * This fix could improve latency for some applications. It could also result in CPU
- * starvation if the callback did too much processing.
- * I also added result checks, so we might see more failures at initialization.
- * Thanks to Alberto di Bene for spotting this.
- */
- /* REVIEW: should we reset the priority class when the stream has stopped?
- - would be best to refcount priority boosts incase more than one
- stream is open
- */
-
- if( !stream->noHighPriorityProcessClass )
- {
-#ifndef WIN32_PLATFORM_PSPC /* no SetPriorityClass or HIGH_PRIORITY_CLASS on PocketPC */
-
- if( !SetPriorityClass( GetCurrentProcess(), HIGH_PRIORITY_CLASS ) ) /* PLB20010816 */
- {
- result = paUnanticipatedHostError;
- PA_MME_SET_LAST_SYSTEM_ERROR( GetLastError() );
- goto error;
- }
-#endif
- }
-
- if( stream->useTimeCriticalProcessingThreadPriority )
- stream->highThreadPriority = THREAD_PRIORITY_TIME_CRITICAL;
- else
- stream->highThreadPriority = THREAD_PRIORITY_HIGHEST;
-
- stream->throttledThreadPriority = THREAD_PRIORITY_NORMAL;
-
- if( !SetThreadPriority( stream->processingThread, stream->highThreadPriority ) )
- {
- result = paUnanticipatedHostError;
- PA_MME_SET_LAST_SYSTEM_ERROR( GetLastError() );
- goto error;
- }
- stream->processingThreadPriority = stream->highThreadPriority;
-
-
- if( PA_IS_INPUT_STREAM_(stream) )
- {
- for( i=0; i < stream->numInputDevices; ++i )
- {
- mmresult = waveInStart( stream->hWaveIns[i] );
- PA_DEBUG(("Pa_StartStream: waveInStart returned = 0x%X.\n", mmresult));
- if( mmresult != MMSYSERR_NOERROR )
- {
- result = paUnanticipatedHostError;
- PA_MME_SET_LAST_WAVEIN_ERROR( mmresult );
- goto error;
- }
- }
- }
-
- if( PA_IS_OUTPUT_STREAM_(stream) )
- {
- for( i=0; i < stream->numOutputDevices; ++i )
- {
- if( (mmresult = waveOutRestart( stream->hWaveOuts[i] )) != MMSYSERR_NOERROR )
- {
- result = paUnanticipatedHostError;
- PA_MME_SET_LAST_WAVEOUT_ERROR( mmresult );
- goto error;
- }
- }
- }
-
- return result;
-
-error:
- /* FIXME: implement recovery as best we can
- This should involve rolling back to a state as-if this function had never been called
- */
- return result;
-}
-
-
-static PaError StopStream( PaStream *s )
-{
- PaError result = paNoError;
- PaWinMmeStream *stream = (PaWinMmeStream*)s;
- int timeout;
- DWORD waitResult;
- MMRESULT mmresult;
- unsigned int i;
-
- /*
- FIXME: the error checking in this function needs review. the basic
- idea is to return from this function in a known state - for example
- there is no point avoiding calling waveInReset just because
- the thread times out.
- */
-
-
- /* Tell processing thread to stop generating more data and to let current data play out. */
- stream->stopProcessing = 1;
-
- /* Calculate timeOut longer than longest time it could take to return all buffers. */
- timeout = stream->allBuffersDurationMs * 1.5;
- if( timeout < PA_MIN_TIMEOUT_MSEC_ )
- timeout = PA_MIN_TIMEOUT_MSEC_;
-
- PA_DEBUG(("WinMME StopStream: waiting for background thread.\n"));
-
- waitResult = WaitForSingleObject( stream->processingThread, timeout );
- if( waitResult == WAIT_TIMEOUT )
- {
- /* try to abort */
- stream->abortProcessing = 1;
- SetEvent( stream->abortEvent );
- waitResult = WaitForSingleObject( stream->processingThread, timeout );
- if( waitResult == WAIT_TIMEOUT )
- {
- PA_DEBUG(("WinMME StopStream: timed out while waiting for background thread to finish.\n"));
- result = paTimedOut;
- }
- }
-
- CloseHandle( stream->processingThread );
- stream->processingThread = NULL;
-
- if( PA_IS_OUTPUT_STREAM_(stream) )
- {
- for( i =0; i < stream->numOutputDevices; ++i )
- {
- mmresult = waveOutReset( stream->hWaveOuts[i] );
- if( mmresult != MMSYSERR_NOERROR )
- {
- result = paUnanticipatedHostError;
- PA_MME_SET_LAST_WAVEOUT_ERROR( mmresult );
- }
- }
- }
-
- if( PA_IS_INPUT_STREAM_(stream) )
- {
- for( i=0; i < stream->numInputDevices; ++i )
- {
- mmresult = waveInReset( stream->hWaveIns[i] );
- if( mmresult != MMSYSERR_NOERROR )
- {
- result = paUnanticipatedHostError;
- PA_MME_SET_LAST_WAVEIN_ERROR( mmresult );
- }
- }
- }
-
- stream->isActive = 0;
-
- return result;
-}
-
-
-static PaError AbortStream( PaStream *s )
-{
- PaError result = paNoError;
- PaWinMmeStream *stream = (PaWinMmeStream*)s;
- int timeout;
- DWORD waitResult;
- MMRESULT mmresult;
- unsigned int i;
-
- /*
- FIXME: the error checking in this function needs review. the basic
- idea is to return from this function in a known state - for example
- there is no point avoiding calling waveInReset just because
- the thread times out.
- */
-
- /* Tell processing thread to abort immediately */
- stream->abortProcessing = 1;
- SetEvent( stream->abortEvent );
-
- /* Calculate timeOut longer than longest time it could take to return all buffers. */
- timeout = stream->allBuffersDurationMs * 1.5;
- if( timeout < PA_MIN_TIMEOUT_MSEC_ )
- timeout = PA_MIN_TIMEOUT_MSEC_;
-
- if( PA_IS_OUTPUT_STREAM_(stream) )
- {
- for( i =0; i < stream->numOutputDevices; ++i )
- {
- mmresult = waveOutReset( stream->hWaveOuts[i] );
- if( mmresult != MMSYSERR_NOERROR )
- {
- PA_MME_SET_LAST_WAVEOUT_ERROR( mmresult );
- return paUnanticipatedHostError;
- }
- }
- }
-
- if( PA_IS_INPUT_STREAM_(stream) )
- {
- for( i=0; i < stream->numInputDevices; ++i )
- {
- mmresult = waveInReset( stream->hWaveIns[i] );
- if( mmresult != MMSYSERR_NOERROR )
- {
- PA_MME_SET_LAST_WAVEIN_ERROR( mmresult );
- return paUnanticipatedHostError;
- }
- }
- }
-
-
- PA_DEBUG(("WinMME AbortStream: waiting for background thread.\n"));
-
- waitResult = WaitForSingleObject( stream->processingThread, timeout );
- if( waitResult == WAIT_TIMEOUT )
- {
- PA_DEBUG(("WinMME AbortStream: timed out while waiting for background thread to finish.\n"));
- return paTimedOut;
- }
-
- CloseHandle( stream->processingThread );
- stream->processingThread = NULL;
-
- stream->isActive = 0;
-
- return result;
-}
-
-
-static PaError IsStreamStopped( PaStream *s )
-{
- PaWinMmeStream *stream = (PaWinMmeStream*)s;
-
- return ( stream->processingThread == NULL );
-}
-
-
-static PaError IsStreamActive( PaStream *s )
-{
- PaWinMmeStream *stream = (PaWinMmeStream*)s;
-
- return stream->isActive;
-}
-
-
-/* UpdateStreamTime() must be called periodically because mmtime.u.sample
- is a DWORD and can wrap and lose sync after a few hours.
- */
-static PaError UpdateStreamTime( PaWinMmeStream *stream )
-{
- MMRESULT mmresult;
- MMTIME mmtime;
- mmtime.wType = TIME_SAMPLES;
-
- if( stream->hWaveOuts )
- {
- /* assume that all devices have the same position */
- mmresult = waveOutGetPosition( stream->hWaveOuts[0], &mmtime, sizeof(mmtime) );
-
- if( mmresult != MMSYSERR_NOERROR )
- {
- PA_MME_SET_LAST_WAVEOUT_ERROR( mmresult );
- return paUnanticipatedHostError;
- }
- }
- else
- {
- /* assume that all devices have the same position */
- mmresult = waveInGetPosition( stream->hWaveIns[0], &mmtime, sizeof(mmtime) );
-
- if( mmresult != MMSYSERR_NOERROR )
- {
- PA_MME_SET_LAST_WAVEIN_ERROR( mmresult );
- return paUnanticipatedHostError;
- }
- }
-
-
- /* This data has two variables and is shared by foreground and background.
- * So we need to make it thread safe. */
- EnterCriticalSection( &stream->lock );
- stream->streamPosition += ((long)mmtime.u.sample) - stream->previousStreamPosition;
- stream->previousStreamPosition = (long)mmtime.u.sample;
- LeaveCriticalSection( &stream->lock );
-
- return paNoError;
-}
-
-
-static PaTime GetStreamTime( PaStream *s )
-{
-/*
- new behavior for GetStreamTime is to return a stream based seconds clock
- used for the outTime parameter to the callback.
- FIXME: delete this comment when the other unnecessary related code has
- been cleaned from this file.
-
- PaWinMmeStream *stream = (PaWinMmeStream*)s;
- PaError error = UpdateStreamTime( stream );
-
- if( error == paNoError )
- return stream->streamPosition;
- else
- return 0;
-*/
- (void) s; /* unused parameter */
- return PaUtil_GetTime();
-}
-
-
-static double GetStreamCpuLoad( PaStream* s )
-{
- PaWinMmeStream *stream = (PaWinMmeStream*)s;
-
- return PaUtil_GetCpuLoad( &stream->cpuLoadMeasurer );
-}
-
-
-/*
- As separate stream interfaces are used for blocking and callback
- streams, the following functions can be guaranteed to only be called
- for blocking streams.
-*/
-
-static PaError ReadStream( PaStream* s,
- void *buffer,
- unsigned long frames )
-{
- PaWinMmeStream *stream = (PaWinMmeStream*)s;
-
- /* IMPLEMENT ME, see portaudio.h for required behavior*/
- (void) stream; /* unused parameters */
- (void) buffer;
- (void) frames;
-
- return paNoError;
-}
-
-
-static PaError WriteStream( PaStream* s,
- void *buffer,
- unsigned long frames )
-{
- PaWinMmeStream *stream = (PaWinMmeStream*)s;
-
- /* IMPLEMENT ME, see portaudio.h for required behavior*/
- (void) stream; /* unused parameters */
- (void) buffer;
- (void) frames;
-
- return paNoError;
-}
-
-
-static signed long GetStreamReadAvailable( PaStream* s )
-{
- PaWinMmeStream *stream = (PaWinMmeStream*)s;
-
- /* IMPLEMENT ME, see portaudio.h for required behavior*/
- (void) stream; /* unused parameter */
-
- return 0;
-}
-
-
-static signed long GetStreamWriteAvailable( PaStream* s )
-{
- PaWinMmeStream *stream = (PaWinMmeStream*)s;
-
- /* IMPLEMENT ME, see portaudio.h for required behavior*/
- (void) stream; /* unused parameter */
-
- return 0;
-}
-
-
-
-
diff --git a/pd/portaudio/pa_win_wmme/pa_win_wmme.h b/pd/portaudio/pa_win_wmme/pa_win_wmme.h
deleted file mode 100644
index d5c18a28..00000000
--- a/pd/portaudio/pa_win_wmme/pa_win_wmme.h
+++ /dev/null
@@ -1,105 +0,0 @@
-#ifndef PA_WIN_WMME_H
-#define PA_WIN_WMME_H
-
-#ifdef __cplusplus
-extern "C"
-{
-#endif /* __cplusplus */
-
-/*
- *
- * PortAudio Portable Real-Time Audio Library
- * MME specific extensions
- *
- * 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 "portaudio.h"
-
-#define PaWinMmeUseLowLevelLatencyParameters (0x01)
-#define PaWinMmeUseMultipleDevices (0x02) /* use mme specific multiple device feature */
-
-/* by default, the mme implementation boosts the process priority class to
- HIGH_PRIORITY_CLASS. This flag disables that priority boost */
-#define PaWinMmeNoHighPriorityProcessClass (0x03)
-
-/* by default, the mme implementation drops the processing thread's priority
- to THREAD_PRIORITY_NORMAL and sleeps the thread if the CPU load exceeds 100% */
-#define PaWinMmeDontThrottleOverloadedProcessingThread (0x04)
-
-/* by default, the mme implementation sets the processing thread's priority to
- THREAD_PRIORITY_HIGHEST. This flag sets the priority to
- THREAD_PRIORITY_TIME_CRITICAL instead. Note that this has the potential
- to freeze the machine, especially when used in combination with
- PaWinMmeDontThrottleOverloadedProcessingThread */
-#define PaWinMmeUseTimeCriticalThreadPriority (0x05)
-
-typedef struct PaWinMmeDeviceAndChannelCount{
- PaDeviceIndex device;
- int channelCount;
-}PaWinMmeDeviceAndChannelCount;
-
-
-typedef struct PaWinMmeStreamInfo{
- unsigned long size; /* sizeof(PaWinMmeStreamInfo) */
- PaHostApiTypeId hostApiType; /* paMME */
- unsigned long version; /* 1 */
-
- unsigned long flags;
-
- /* low-level latency setting support
- These settings control the number and size of host buffers in order
- to set latency. They will be used instead of the generic parameters
- to Pa_OpenStream() if flags contains the PaWinMmeUseLowLevelLatencyParameters
- flag.
- */
- unsigned long framesPerBuffer;
- unsigned long numBuffers;
-
- /* multiple devices per direction support
- If flags contains the PaWinMmeUseMultipleDevices flag,
- this functionality will be used, otherwise the device parameter to
- Pa_OpenStream() will be used instead.
- If devices are specified here, the corresponding device parameter
- to Pa_OpenStream() should be set to paUseHostApiSpecificDeviceSpecification,
- otherwise an paInvalidDevice error will result.
- The total number of channels accross all specified devices
- must agree with the corresponding channelCount parameter to
- Pa_OpenStream() otherwise a paInvalidChannelCount error will result.
- */
- PaWinMmeDeviceAndChannelCount *devices;
- unsigned long deviceCount;
-
-}PaWinMmeStreamInfo;
-
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-#endif /* PA_WIN_WMME_H */
generated by cgit v1.2.1 (git 2.18.0) at 2024-06-29 13:45:31 +0000