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https://github.com/gnustep/libs-gui.git
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81632bcf5b
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@14212 72102866-910b-0410-8b05-ffd578937521
2998 lines
156 KiB
C++
2998 lines
156 KiB
C++
/*
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* $Id$
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* Portable Audio I/O Library for ASIO Drivers
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*
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* Author: Stephane Letz
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* Based on the Open Source API proposed by Ross Bencina
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* Copyright (c) 2000-2001 Stephane Letz, Phil Burk
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files
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* (the "Software"), to deal in the Software without restriction,
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* including without limitation the rights to use, copy, modify, merge,
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* publish, distribute, sublicense, and/or sell copies of the Software,
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* and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* Any person wishing to distribute modifications to the Software is
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* requested to send the modifications to the original developer so that
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* they can be incorporated into the canonical version.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
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* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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/* Modification History
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08-03-01 First version : Stephane Letz
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08-06-01 Tweaks for PC, use C++, buffer allocation, Float32 to Int32 conversion : Phil Burk
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08-20-01 More conversion, PA_StreamTime, Pa_GetHostError : Stephane Letz
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08-21-01 PaUInt8 bug correction, implementation of ASIOSTFloat32LSB and ASIOSTFloat32MSB native formats : Stephane Letz
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08-24-01 MAX_INT32_FP hack, another Uint8 fix : Stephane and Phil
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08-27-01 Implementation of hostBufferSize < userBufferSize case, better management of the ouput buffer when
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the stream is stopped : Stephane Letz
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08-28-01 Check the stream pointer for null in bufferSwitchTimeInfo, correct bug in bufferSwitchTimeInfo when
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the stream is stopped : Stephane Letz
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10-12-01 Correct the PaHost_CalcNumHostBuffers function: computes FramesPerHostBuffer to be the lowest that
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respect requested FramesPerUserBuffer and userBuffersPerHostBuffer : Stephane Letz
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10-26-01 Management of hostBufferSize and userBufferSize of any size : Stephane Letz
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10-27-01 Improve calculus of hostBufferSize to be multiple or divisor of userBufferSize if possible : Stephane and Phil
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10-29-01 Change MAX_INT32_FP to (2147483520.0f) to prevent roundup to 0x80000000 : Phil Burk
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10-31-01 Clear the ouput buffer and user buffers in PaHost_StartOutput, correct bug in GetFirstMultiple : Stephane Letz
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11-06-01 Rename functions : Stephane Letz
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11-08-01 New Pa_ASIO_Adaptor_Init function to init Callback adpatation variables, cleanup of Pa_ASIO_Callback_Input: Stephane Letz
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11-29-01 Break apart device loading to debug random failure in Pa_ASIO_QueryDeviceInfo ; Phil Burk
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01-03-02 Desallocate all resources in PaHost_Term for cases where Pa_CloseStream is not called properly : Stephane Letz
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02-01-02 Cleanup, test of multiple-stream opening : Stephane Letz
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19-02-02 New Pa_ASIO_loadDriver that calls CoInitialize on each thread on Windows : Stephane Letz
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09-04-02 Correct error code management in PaHost_Term, removes various compiler warning : Stephane Letz
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12-04-02 Add Mac includes for <Devices.h> and <Timer.h> : Phil Burk
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13-04-02 Removes another compiler warning : Stephane Letz
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30-04-02 Pa_ASIO_QueryDeviceInfo bug correction, memory allocation checking, better error handling : D Viens, P Burk, S Letz
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TO DO :
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- Check Pa_StopSteam and Pa_AbortStream
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- Optimization for Input only or Ouput only (really necessary ??)
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*/
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#include <stdio.h>
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#include <assert.h>
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#include <string.h>
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#include "portaudio.h"
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#include "pa_host.h"
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#include "pa_trace.h"
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#include "asiosys.h"
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#include "asio.h"
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#include "asiodrivers.h"
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#if MAC
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#include <Devices.h>
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#include <Timer.h>
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#include <Math64.h>
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#else
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#include <math.h>
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#include <windows.h>
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#include <mmsystem.h>
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#endif
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enum {
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// number of input and outputs supported by the host application
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// you can change these to higher or lower values
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kMaxInputChannels = 32,
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kMaxOutputChannels = 32
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};
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/* ASIO specific device information. */
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typedef struct internalPortAudioDevice
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{
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PaDeviceInfo pad_Info;
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} internalPortAudioDevice;
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/* ASIO driver internal data storage */
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typedef struct PaHostSoundControl
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{
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// ASIOInit()
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ASIODriverInfo pahsc_driverInfo;
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// ASIOGetChannels()
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int32 pahsc_NumInputChannels;
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int32 pahsc_NumOutputChannels;
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// ASIOGetBufferSize() - sizes in frames per buffer
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int32 pahsc_minSize;
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int32 pahsc_maxSize;
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int32 pahsc_preferredSize;
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int32 pahsc_granularity;
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// ASIOGetSampleRate()
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ASIOSampleRate pahsc_sampleRate;
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// ASIOOutputReady()
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bool pahsc_postOutput;
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// ASIOGetLatencies ()
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int32 pahsc_inputLatency;
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int32 pahsc_outputLatency;
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// ASIOCreateBuffers ()
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ASIOBufferInfo bufferInfos[kMaxInputChannels + kMaxOutputChannels]; // buffer info's
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// ASIOGetChannelInfo()
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ASIOChannelInfo pahsc_channelInfos[kMaxInputChannels + kMaxOutputChannels]; // channel info's
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// The above two arrays share the same indexing, as the data in them are linked together
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// Information from ASIOGetSamplePosition()
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// data is converted to double floats for easier use, however 64 bit integer can be used, too
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double nanoSeconds;
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double samples;
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double tcSamples; // time code samples
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// bufferSwitchTimeInfo()
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ASIOTime tInfo; // time info state
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unsigned long sysRefTime; // system reference time, when bufferSwitch() was called
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// Signal the end of processing in this example
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bool stopped;
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ASIOCallbacks pahsc_asioCallbacks;
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int32 pahsc_userInputBufferFrameOffset; // Position in Input user buffer
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int32 pahsc_userOutputBufferFrameOffset; // Position in Output user buffer
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int32 pahsc_hostOutputBufferFrameOffset; // Position in Output ASIO buffer
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int32 past_FramesPerHostBuffer; // Number of frames in ASIO buffer
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int32 pahsc_InputBufferOffset; // Number of null frames for input buffer alignement
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int32 pahsc_OutputBufferOffset; // Number of null frames for ouput buffer alignement
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#if MAC
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UInt64 pahsc_EntryCount;
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UInt64 pahsc_LastExitCount;
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#elif WINDOWS
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LARGE_INTEGER pahsc_EntryCount;
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LARGE_INTEGER pahsc_LastExitCount;
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#endif
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PaTimestamp pahsc_NumFramesDone;
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internalPortAudioStream *past;
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} PaHostSoundControl;
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//----------------------------------------------------------
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#define PRINT(x) { printf x; fflush(stdout); }
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#define ERR_RPT(x) PRINT(x)
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#define DBUG(x) /* PRINT(x) */
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#define DBUGX(x) /* PRINT(x) /**/
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/* We are trying to be compatible with CARBON but this has not been thoroughly tested. */
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#define CARBON_COMPATIBLE (0)
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#define PA_MAX_DEVICE_INFO (32)
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#define MIN_INT8 (-0x80)
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#define MAX_INT8 (0x7F)
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#define MIN_INT8_FP ((float)-0x80)
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#define MAX_INT8_FP ((float)0x7F)
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#define MIN_INT16_FP ((float)-0x8000)
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#define MAX_INT16_FP ((float)0x7FFF)
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#define MIN_INT16 (-0x8000)
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#define MAX_INT16 (0x7FFF)
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#define MAX_INT32_FP (2147483520.0f) /* 0x0x7FFFFF80 - seems safe */
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/************************************************************************************/
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/****************** Data ************************************************************/
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/************************************************************************************/
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static int sNumDevices = 0;
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static internalPortAudioDevice sDevices[PA_MAX_DEVICE_INFO] = { 0 };
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static int32 sPaHostError = 0;
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static int sDefaultOutputDeviceID = 0;
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static int sDefaultInputDeviceID = 0;
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PaHostSoundControl asioDriverInfo = {0};
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#ifdef MAC
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static bool swap = true;
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#elif WINDOWS
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static bool swap = false;
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#endif
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// Prototypes
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static void bufferSwitch(long index, ASIOBool processNow);
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static ASIOTime *bufferSwitchTimeInfo(ASIOTime *timeInfo, long index, ASIOBool processNow);
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static void sampleRateChanged(ASIOSampleRate sRate);
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static long asioMessages(long selector, long value, void* message, double* opt);
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static void Pa_StartUsageCalculation( internalPortAudioStream *past );
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static void Pa_EndUsageCalculation( internalPortAudioStream *past );
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static void Pa_ASIO_Convert_Inter_Input(
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ASIOBufferInfo* nativeBuffer,
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void* inputBuffer,
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long NumInputChannels,
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long NumOuputChannels,
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long framePerBuffer,
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long hostFrameOffset,
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long userFrameOffset,
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ASIOSampleType nativeFormat,
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PaSampleFormat paFormat,
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PaStreamFlags flags,
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long index);
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static void Pa_ASIO_Convert_Inter_Output(
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ASIOBufferInfo* nativeBuffer,
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void* outputBuffer,
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long NumInputChannels,
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long NumOuputChannels,
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long framePerBuffer,
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long hostFrameOffset,
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long userFrameOffset,
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ASIOSampleType nativeFormat,
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PaSampleFormat paFormat,
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PaStreamFlags flags,
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long index);
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static void Pa_ASIO_Clear_Output(ASIOBufferInfo* nativeBuffer,
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ASIOSampleType nativeFormat,
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long NumInputChannels,
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long NumOuputChannels,
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long index,
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long hostFrameOffset,
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long frames);
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static void Pa_ASIO_Callback_Input(long index);
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static void Pa_ASIO_Callback_Output(long index, long framePerBuffer);
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static void Pa_ASIO_Callback_End();
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static void Pa_ASIO_Clear_User_Buffers();
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// Some external references
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extern AsioDrivers* asioDrivers ;
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bool loadAsioDriver(char *name);
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unsigned long get_sys_reference_time();
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/************************************************************************************/
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/****************** Macro ************************************************************/
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/************************************************************************************/
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#define SwapLong(v) ((((v)>>24)&0xFF)|(((v)>>8)&0xFF00)|(((v)&0xFF00)<<8)|(((v)&0xFF)<<24)) ;
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#define SwapShort(v) ((((v)>>8)&0xFF)|(((v)&0xFF)<<8)) ;
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#define ClipShort(v) (((v)<MIN_INT16)?MIN_INT16:(((v)>MAX_INT16)?MAX_INT16:(v)))
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#define ClipChar(v) (((v)<MIN_INT8)?MIN_INT8:(((v)>MAX_INT8)?MAX_INT8:(v)))
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#define ClipFloat(v) (((v)<-1.0f)?-1.0f:(((v)>1.0f)?1.0f:(v)))
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#ifndef min
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#define min(a,b) ((a)<(b)?(a):(b))
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#endif
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#ifndef max
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#define max(a,b) ((a)>=(b)?(a):(b))
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#endif
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static bool Pa_ASIO_loadAsioDriver(char *name)
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{
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#ifdef WINDOWS
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CoInitialize(0);
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#endif
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return loadAsioDriver(name);
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}
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// Utilities for alignement buffer size computation
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static int PGCD (int a, int b) {return (b == 0) ? a : PGCD (b,a%b);}
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static int PPCM (int a, int b) {return (a*b) / PGCD (a,b);}
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// Takes the size of host buffer and user buffer : returns the number of frames needed for buffer alignement
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static int Pa_ASIO_CalcFrameShift (int M, int N)
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{
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int res = 0;
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for (int i = M; i < PPCM (M,N) ; i+=M) { res = max (res, i%N); }
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return res;
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}
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// We have the following relation :
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// Pa_ASIO_CalcFrameShift (M,N) + M = Pa_ASIO_CalcFrameShift (N,M) + N
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/* ASIO sample type to PortAudio sample type conversion */
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static PaSampleFormat Pa_ASIO_Convert_SampleFormat(ASIOSampleType type)
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{
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switch (type) {
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case ASIOSTInt16MSB:
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case ASIOSTInt16LSB:
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case ASIOSTInt32MSB16:
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case ASIOSTInt32LSB16:
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return paInt16;
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case ASIOSTFloat32MSB:
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case ASIOSTFloat32LSB:
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case ASIOSTFloat64MSB:
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case ASIOSTFloat64LSB:
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return paFloat32;
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case ASIOSTInt32MSB:
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case ASIOSTInt32LSB:
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case ASIOSTInt32MSB18:
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case ASIOSTInt32MSB20:
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case ASIOSTInt32MSB24:
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case ASIOSTInt32LSB18:
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case ASIOSTInt32LSB20:
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case ASIOSTInt32LSB24:
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return paInt32;
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case ASIOSTInt24MSB:
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case ASIOSTInt24LSB:
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return paInt24;
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default:
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return paCustomFormat;
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}
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}
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/* Allocate ASIO buffers, initialise channels */
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static ASIOError Pa_ASIO_CreateBuffers (PaHostSoundControl *asioDriverInfo, long InputChannels,
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long OutputChannels, long framesPerBuffer)
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{
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ASIOError err;
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int i;
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ASIOBufferInfo *info = asioDriverInfo->bufferInfos;
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// Check parameters
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if ((InputChannels > kMaxInputChannels) || (OutputChannels > kMaxInputChannels)) return ASE_InvalidParameter;
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for(i = 0; i < InputChannels; i++, info++){
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info->isInput = ASIOTrue;
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info->channelNum = i;
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info->buffers[0] = info->buffers[1] = 0;
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}
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for(i = 0; i < OutputChannels; i++, info++){
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info->isInput = ASIOFalse;
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info->channelNum = i;
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info->buffers[0] = info->buffers[1] = 0;
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}
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// Set up the asioCallback structure and create the ASIO data buffer
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asioDriverInfo->pahsc_asioCallbacks.bufferSwitch = &bufferSwitch;
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asioDriverInfo->pahsc_asioCallbacks.sampleRateDidChange = &sampleRateChanged;
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asioDriverInfo->pahsc_asioCallbacks.asioMessage = &asioMessages;
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asioDriverInfo->pahsc_asioCallbacks.bufferSwitchTimeInfo = &bufferSwitchTimeInfo;
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DBUG(("PortAudio : ASIOCreateBuffers with size = %ld \n", framesPerBuffer));
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err = ASIOCreateBuffers( asioDriverInfo->bufferInfos, InputChannels+OutputChannels,
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framesPerBuffer, &asioDriverInfo->pahsc_asioCallbacks);
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if (err != ASE_OK) return err;
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// Initialise buffers
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for (i = 0; i < InputChannels + OutputChannels; i++)
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{
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asioDriverInfo->pahsc_channelInfos[i].channel = asioDriverInfo->bufferInfos[i].channelNum;
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asioDriverInfo->pahsc_channelInfos[i].isInput = asioDriverInfo->bufferInfos[i].isInput;
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err = ASIOGetChannelInfo(&asioDriverInfo->pahsc_channelInfos[i]);
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if (err != ASE_OK) break;
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}
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err = ASIOGetLatencies(&asioDriverInfo->pahsc_inputLatency, &asioDriverInfo->pahsc_outputLatency);
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DBUG(("PortAudio : InputLatency = %ld latency = %ld msec \n",
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asioDriverInfo->pahsc_inputLatency,
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(long)((asioDriverInfo->pahsc_inputLatency*1000)/ asioDriverInfo->past->past_SampleRate)));
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DBUG(("PortAudio : OuputLatency = %ld latency = %ld msec \n",
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asioDriverInfo->pahsc_outputLatency,
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(long)((asioDriverInfo->pahsc_outputLatency*1000)/ asioDriverInfo->past->past_SampleRate)));
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return err;
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}
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/*
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Query ASIO driver info :
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First we get all available ASIO drivers located in the ASIO folder,
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then try to load each one. For each loaded driver, get all needed informations.
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*/
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static PaError Pa_ASIO_QueryDeviceInfo( internalPortAudioDevice * ipad )
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{
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#define NUM_STANDARDSAMPLINGRATES 3 /* 11.025, 22.05, 44.1 */
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#define NUM_CUSTOMSAMPLINGRATES 9 /* must be the same number of elements as in the array below */
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#define MAX_NUMSAMPLINGRATES (NUM_STANDARDSAMPLINGRATES+NUM_CUSTOMSAMPLINGRATES)
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ASIOSampleRate possibleSampleRates[]
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= {8000.0, 9600.0, 11025.0, 12000.0, 16000.0, 22050.0, 24000.0, 32000.0, 44100.0, 48000.0, 88200.0, 96000.0};
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ASIOChannelInfo channelInfos;
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long InputChannels,OutputChannels;
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double *sampleRates;
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char* names[PA_MAX_DEVICE_INFO] ;
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PaDeviceInfo *dev;
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int i;
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int numDrivers;
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ASIOError asioError;
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/* Allocate names */
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for (i = 0 ; i < PA_MAX_DEVICE_INFO ; i++) {
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names[i] = (char*)PaHost_AllocateFastMemory(32);
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/* check memory */
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if(!names[i]) return paInsufficientMemory;
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}
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/* MUST BE CHECKED : to force fragments loading on Mac */
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Pa_ASIO_loadAsioDriver("dummy");
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/* Get names of all available ASIO drivers */
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asioDrivers->getDriverNames(names,PA_MAX_DEVICE_INFO);
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/* Check all available ASIO drivers */
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#if MAC
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numDrivers = asioDrivers->getNumFragments();
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#elif WINDOWS
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numDrivers = asioDrivers->asioGetNumDev();
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#endif
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DBUG(("PaASIO_QueryDeviceInfo: numDrivers = %d\n", numDrivers ));
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for (int driver = 0 ; driver < numDrivers ; driver++)
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{
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#if WINDOWS
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asioDriverInfo.pahsc_driverInfo.asioVersion = 2; // FIXME - is this right? PLB
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asioDriverInfo.pahsc_driverInfo.sysRef = GetDesktopWindow(); // FIXME - is this right? PLB
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#endif
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/* If the driver can be loaded : */
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if ( !Pa_ASIO_loadAsioDriver(names[driver]) )
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{
|
|
DBUG(("PaASIO_QueryDeviceInfo could not loadAsioDriver %s\n", names[driver]));
|
|
}
|
|
else if( (asioError = ASIOInit(&asioDriverInfo.pahsc_driverInfo)) != ASE_OK )
|
|
{
|
|
DBUG(("PaASIO_QueryDeviceInfo: ASIOInit returned %d for %s\n", asioError, names[driver]));
|
|
}
|
|
else if( (ASIOGetChannels(&InputChannels, &OutputChannels) != ASE_OK))
|
|
{
|
|
DBUG(("PaASIO_QueryDeviceInfo could not ASIOGetChannels for %s\n", names[driver]));
|
|
}
|
|
else
|
|
{
|
|
/* Gets the name */
|
|
dev = &(ipad[sNumDevices].pad_Info);
|
|
dev->name = names[driver];
|
|
names[driver] = 0;
|
|
|
|
/* Gets Input and Output channels number */
|
|
dev->maxInputChannels = InputChannels;
|
|
dev->maxOutputChannels = OutputChannels;
|
|
|
|
DBUG(("PaASIO_QueryDeviceInfo: InputChannels = %d\n", InputChannels ));
|
|
DBUG(("PaASIO_QueryDeviceInfo: OutputChannels = %d\n", OutputChannels ));
|
|
|
|
/* Make room in case device supports all rates. */
|
|
sampleRates = (double*)PaHost_AllocateFastMemory(MAX_NUMSAMPLINGRATES * sizeof(double));
|
|
/* check memory */
|
|
if (!sampleRates) {
|
|
ASIOExit();
|
|
return paInsufficientMemory;
|
|
}
|
|
dev->sampleRates = sampleRates;
|
|
dev->numSampleRates = 0;
|
|
|
|
/* Loop through the possible sampling rates and check each to see if the device supports it. */
|
|
for (int index = 0; index < MAX_NUMSAMPLINGRATES; index++) {
|
|
if (ASIOCanSampleRate(possibleSampleRates[index]) != ASE_NoClock) {
|
|
DBUG(("PortAudio : possible sample rate = %d\n", (long)possibleSampleRates[index]));
|
|
dev->numSampleRates += 1;
|
|
*sampleRates = possibleSampleRates[index];
|
|
sampleRates++;
|
|
}
|
|
}
|
|
|
|
/* We assume that all channels have the same SampleType, so check the first */
|
|
channelInfos.channel = 0;
|
|
channelInfos.isInput = 1;
|
|
ASIOGetChannelInfo(&channelInfos);
|
|
|
|
dev->nativeSampleFormats = Pa_ASIO_Convert_SampleFormat(channelInfos.type);
|
|
|
|
/* unload the driver */
|
|
ASIOExit();
|
|
sNumDevices++;
|
|
}
|
|
}
|
|
|
|
/* free only unused names */
|
|
for (i = 0 ; i < PA_MAX_DEVICE_INFO ; i++) if (names[i]) PaHost_FreeFastMemory(names[i],32);
|
|
|
|
return paNoError;
|
|
}
|
|
|
|
//----------------------------------------------------------------------------------
|
|
// TAKEN FROM THE ASIO SDK:
|
|
static void sampleRateChanged(ASIOSampleRate sRate)
|
|
{
|
|
// do whatever you need to do if the sample rate changed
|
|
// usually this only happens during external sync.
|
|
// Audio processing is not stopped by the driver, actual sample rate
|
|
// might not have even changed, maybe only the sample rate status of an
|
|
// AES/EBU or S/PDIF digital input at the audio device.
|
|
// You might have to update time/sample related conversion routines, etc.
|
|
}
|
|
|
|
//----------------------------------------------------------------------------------
|
|
// TAKEN FROM THE ASIO SDK:
|
|
long asioMessages(long selector, long value, void* message, double* opt)
|
|
{
|
|
// currently the parameters "value", "message" and "opt" are not used.
|
|
long ret = 0;
|
|
switch(selector)
|
|
{
|
|
case kAsioSelectorSupported:
|
|
if(value == kAsioResetRequest
|
|
|| value == kAsioEngineVersion
|
|
|| value == kAsioResyncRequest
|
|
|| value == kAsioLatenciesChanged
|
|
// the following three were added for ASIO 2.0, you don't necessarily have to support them
|
|
|| value == kAsioSupportsTimeInfo
|
|
|| value == kAsioSupportsTimeCode
|
|
|| value == kAsioSupportsInputMonitor)
|
|
ret = 1L;
|
|
break;
|
|
|
|
case kAsioBufferSizeChange:
|
|
//printf("kAsioBufferSizeChange \n");
|
|
break;
|
|
|
|
case kAsioResetRequest:
|
|
// defer the task and perform the reset of the driver during the next "safe" situation
|
|
// You cannot reset the driver right now, as this code is called from the driver.
|
|
// Reset the driver is done by completely destruct is. I.e. ASIOStop(), ASIODisposeBuffers(), Destruction
|
|
// Afterwards you initialize the driver again.
|
|
asioDriverInfo.stopped; // In this sample the processing will just stop
|
|
ret = 1L;
|
|
break;
|
|
case kAsioResyncRequest:
|
|
// This informs the application, that the driver encountered some non fatal data loss.
|
|
// It is used for synchronization purposes of different media.
|
|
// Added mainly to work around the Win16Mutex problems in Windows 95/98 with the
|
|
// Windows Multimedia system, which could loose data because the Mutex was hold too long
|
|
// by another thread.
|
|
// However a driver can issue it in other situations, too.
|
|
ret = 1L;
|
|
break;
|
|
case kAsioLatenciesChanged:
|
|
// This will inform the host application that the drivers were latencies changed.
|
|
// Beware, it this does not mean that the buffer sizes have changed!
|
|
// You might need to update internal delay data.
|
|
ret = 1L;
|
|
//printf("kAsioLatenciesChanged \n");
|
|
break;
|
|
case kAsioEngineVersion:
|
|
// return the supported ASIO version of the host application
|
|
// If a host applications does not implement this selector, ASIO 1.0 is assumed
|
|
// by the driver
|
|
ret = 2L;
|
|
break;
|
|
case kAsioSupportsTimeInfo:
|
|
// informs the driver wether the asioCallbacks.bufferSwitchTimeInfo() callback
|
|
// is supported.
|
|
// For compatibility with ASIO 1.0 drivers the host application should always support
|
|
// the "old" bufferSwitch method, too.
|
|
ret = 1;
|
|
break;
|
|
case kAsioSupportsTimeCode:
|
|
// informs the driver wether application is interested in time code info.
|
|
// If an application does not need to know about time code, the driver has less work
|
|
// to do.
|
|
ret = 0;
|
|
break;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
//----------------------------------------------------------------------------------
|
|
// conversion from 64 bit ASIOSample/ASIOTimeStamp to double float
|
|
#if NATIVE_INT64
|
|
#define ASIO64toDouble(a) (a)
|
|
#else
|
|
const double twoRaisedTo32 = 4294967296.;
|
|
#define ASIO64toDouble(a) ((a).lo + (a).hi * twoRaisedTo32)
|
|
#endif
|
|
|
|
|
|
static ASIOTime *bufferSwitchTimeInfo(ASIOTime *timeInfo, long index, ASIOBool processNow)
|
|
{
|
|
// the actual processing callback.
|
|
// Beware that this is normally in a seperate thread, hence be sure that you take care
|
|
// about thread synchronization. This is omitted here for simplicity.
|
|
|
|
// static processedSamples = 0;
|
|
int result = 0;
|
|
|
|
// store the timeInfo for later use
|
|
asioDriverInfo.tInfo = *timeInfo;
|
|
|
|
// get the time stamp of the buffer, not necessary if no
|
|
// synchronization to other media is required
|
|
|
|
if (timeInfo->timeInfo.flags & kSystemTimeValid)
|
|
asioDriverInfo.nanoSeconds = ASIO64toDouble(timeInfo->timeInfo.systemTime);
|
|
else
|
|
asioDriverInfo.nanoSeconds = 0;
|
|
|
|
if (timeInfo->timeInfo.flags & kSamplePositionValid)
|
|
asioDriverInfo.samples = ASIO64toDouble(timeInfo->timeInfo.samplePosition);
|
|
else
|
|
asioDriverInfo.samples = 0;
|
|
|
|
if (timeInfo->timeCode.flags & kTcValid)
|
|
asioDriverInfo.tcSamples = ASIO64toDouble(timeInfo->timeCode.timeCodeSamples);
|
|
else
|
|
asioDriverInfo.tcSamples = 0;
|
|
|
|
// get the system reference time
|
|
asioDriverInfo.sysRefTime = get_sys_reference_time();
|
|
|
|
#if 0
|
|
// a few debug messages for the Windows device driver developer
|
|
// tells you the time when driver got its interrupt and the delay until the app receives
|
|
// the event notification.
|
|
static double last_samples = 0;
|
|
char tmp[128];
|
|
sprintf (tmp, "diff: %d / %d ms / %d ms / %d samples \n", asioDriverInfo.sysRefTime - (long)(asioDriverInfo.nanoSeconds / 1000000.0), asioDriverInfo.sysRefTime, (long)(asioDriverInfo.nanoSeconds / 1000000.0), (long)(asioDriverInfo.samples - last_samples));
|
|
OutputDebugString (tmp);
|
|
last_samples = asioDriverInfo.samples;
|
|
#endif
|
|
|
|
// To avoid the callback accessing a desallocated stream
|
|
if( asioDriverInfo.past == NULL) return 0L;
|
|
|
|
// Keep sample position
|
|
asioDriverInfo.pahsc_NumFramesDone = timeInfo->timeInfo.samplePosition.lo;
|
|
|
|
/* Has a user callback returned '1' to indicate finished at the last ASIO callback? */
|
|
if( asioDriverInfo.past->past_StopSoon ) {
|
|
|
|
Pa_ASIO_Clear_Output(asioDriverInfo.bufferInfos,
|
|
asioDriverInfo.pahsc_channelInfos[0].type,
|
|
asioDriverInfo.pahsc_NumInputChannels ,
|
|
asioDriverInfo.pahsc_NumOutputChannels,
|
|
index,
|
|
0,
|
|
asioDriverInfo.past_FramesPerHostBuffer);
|
|
|
|
asioDriverInfo.past->past_IsActive = 0;
|
|
|
|
// Finally if the driver supports the ASIOOutputReady() optimization, do it here, all data are in place
|
|
if (asioDriverInfo.pahsc_postOutput) ASIOOutputReady();
|
|
|
|
}else {
|
|
|
|
/* CPU usage */
|
|
Pa_StartUsageCalculation(asioDriverInfo.past);
|
|
|
|
Pa_ASIO_Callback_Input(index);
|
|
|
|
// Finally if the driver supports the ASIOOutputReady() optimization, do it here, all data are in place
|
|
if (asioDriverInfo.pahsc_postOutput) ASIOOutputReady();
|
|
|
|
Pa_ASIO_Callback_End();
|
|
|
|
/* CPU usage */
|
|
Pa_EndUsageCalculation(asioDriverInfo.past);
|
|
}
|
|
|
|
return 0L;
|
|
}
|
|
|
|
|
|
//----------------------------------------------------------------------------------
|
|
void bufferSwitch(long index, ASIOBool processNow)
|
|
{
|
|
// the actual processing callback.
|
|
// Beware that this is normally in a seperate thread, hence be sure that you take care
|
|
// about thread synchronization. This is omitted here for simplicity.
|
|
|
|
// as this is a "back door" into the bufferSwitchTimeInfo a timeInfo needs to be created
|
|
// though it will only set the timeInfo.samplePosition and timeInfo.systemTime fields and the according flags
|
|
|
|
ASIOTime timeInfo;
|
|
memset (&timeInfo, 0, sizeof (timeInfo));
|
|
|
|
// get the time stamp of the buffer, not necessary if no
|
|
// synchronization to other media is required
|
|
if(ASIOGetSamplePosition(&timeInfo.timeInfo.samplePosition, &timeInfo.timeInfo.systemTime) == ASE_OK)
|
|
timeInfo.timeInfo.flags = kSystemTimeValid | kSamplePositionValid;
|
|
|
|
// Call the real callback
|
|
bufferSwitchTimeInfo (&timeInfo, index, processNow);
|
|
}
|
|
|
|
//----------------------------------------------------------------------------------
|
|
unsigned long get_sys_reference_time()
|
|
{
|
|
// get the system reference time
|
|
#if WINDOWS
|
|
return timeGetTime();
|
|
#elif MAC
|
|
static const double twoRaisedTo32 = 4294967296.;
|
|
UnsignedWide ys;
|
|
Microseconds(&ys);
|
|
double r = ((double)ys.hi * twoRaisedTo32 + (double)ys.lo);
|
|
return (unsigned long)(r / 1000.);
|
|
#endif
|
|
}
|
|
|
|
|
|
/*************************************************************
|
|
** Calculate 2 LSB dither signal with a triangular distribution.
|
|
** Ranged properly for adding to a 32 bit integer prior to >>15.
|
|
*/
|
|
#define DITHER_BITS (15)
|
|
#define DITHER_SCALE (1.0f / ((1<<DITHER_BITS)-1))
|
|
inline static long Pa_TriangularDither( void )
|
|
{
|
|
static unsigned long previous = 0;
|
|
static unsigned long randSeed1 = 22222;
|
|
static unsigned long randSeed2 = 5555555;
|
|
long current, highPass;
|
|
/* Generate two random numbers. */
|
|
randSeed1 = (randSeed1 * 196314165) + 907633515;
|
|
randSeed2 = (randSeed2 * 196314165) + 907633515;
|
|
/* Generate triangular distribution about 0. */
|
|
current = (((long)randSeed1)>>(32-DITHER_BITS)) + (((long)randSeed2)>>(32-DITHER_BITS));
|
|
/* High pass filter to reduce audibility. */
|
|
highPass = current - previous;
|
|
previous = current;
|
|
return highPass;
|
|
}
|
|
|
|
// TO BE COMPLETED WITH ALL SUPPORTED PA SAMPLE TYPES
|
|
|
|
//-------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
static void Input_Int16_Float32 (ASIOBufferInfo* nativeBuffer, float *inBufPtr, int framePerBuffer, int NumInputChannels, int index, int hostFrameOffset,int userFrameOffset, bool swap)
|
|
{
|
|
long temp;
|
|
int i,j;
|
|
|
|
for( j=0; j<NumInputChannels; j++ ) {
|
|
short *asioBufPtr = &((short*)nativeBuffer[j].buffers[index])[hostFrameOffset];
|
|
float *userBufPtr = &inBufPtr[j+(userFrameOffset*NumInputChannels)];
|
|
for (i= 0; i < framePerBuffer; i++)
|
|
{
|
|
temp = asioBufPtr[i];
|
|
if (swap) temp = SwapShort(temp);
|
|
*userBufPtr = (1.0f / MAX_INT16_FP) * temp;
|
|
userBufPtr += NumInputChannels;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
//-------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
static void Input_Int32_Float32 (ASIOBufferInfo* nativeBuffer, float *inBufPtr, int framePerBuffer, int NumInputChannels, int index, int hostFrameOffset,int userFrameOffset,bool swap)
|
|
{
|
|
long temp;
|
|
int i,j;
|
|
|
|
for( j=0; j<NumInputChannels; j++ ) {
|
|
long *asioBufPtr = &((long*)nativeBuffer[j].buffers[index])[hostFrameOffset];
|
|
float *userBufPtr = &inBufPtr[j+(userFrameOffset*NumInputChannels)];
|
|
for (i= 0; i < framePerBuffer; i++)
|
|
{
|
|
temp = asioBufPtr[i];
|
|
if (swap) temp = SwapLong(temp);
|
|
*userBufPtr = (1.0f / MAX_INT32_FP) * temp;
|
|
userBufPtr += NumInputChannels;
|
|
}
|
|
}
|
|
}
|
|
|
|
//-------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
// MUST BE TESTED
|
|
static void Input_Float32_Float32 (ASIOBufferInfo* nativeBuffer, float *inBufPtr, int framePerBuffer, int NumInputChannels, int index, int hostFrameOffset,int userFrameOffset,bool swap)
|
|
{
|
|
unsigned long temp;
|
|
int i,j;
|
|
|
|
for( j=0; j<NumInputChannels; j++ ) {
|
|
unsigned long *asioBufPtr = &((unsigned long*)nativeBuffer[j].buffers[index])[hostFrameOffset];
|
|
float *userBufPtr = &inBufPtr[j+(userFrameOffset*NumInputChannels)];
|
|
for (i= 0; i < framePerBuffer; i++)
|
|
{
|
|
temp = asioBufPtr[i];
|
|
if (swap) temp = SwapLong(temp);
|
|
*userBufPtr = (float)temp;
|
|
userBufPtr += NumInputChannels;
|
|
}
|
|
}
|
|
}
|
|
|
|
//-------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
static void Input_Int16_Int32 (ASIOBufferInfo* nativeBuffer, long *inBufPtr, int framePerBuffer, int NumInputChannels, int index, int hostFrameOffset,int userFrameOffset,bool swap)
|
|
{
|
|
long temp;
|
|
int i,j;
|
|
|
|
for( j=0; j<NumInputChannels; j++ ) {
|
|
short *asioBufPtr = &((short*)nativeBuffer[j].buffers[index])[hostFrameOffset];
|
|
long *userBufPtr = &inBufPtr[j+(userFrameOffset*NumInputChannels)];
|
|
for (i= 0; i < framePerBuffer; i++)
|
|
{
|
|
temp = asioBufPtr[i];
|
|
if (swap) temp = SwapShort(temp);
|
|
*userBufPtr = temp<<16;
|
|
userBufPtr += NumInputChannels;
|
|
}
|
|
}
|
|
}
|
|
|
|
//-------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
static void Input_Int32_Int32 (ASIOBufferInfo* nativeBuffer, long *inBufPtr, int framePerBuffer, int NumInputChannels, int index, int hostFrameOffset,int userFrameOffset,bool swap)
|
|
{
|
|
long temp;
|
|
int i,j;
|
|
|
|
for( j=0; j<NumInputChannels; j++ ) {
|
|
long *asioBufPtr = &((long*)nativeBuffer[j].buffers[index])[hostFrameOffset];
|
|
long *userBufPtr = &inBufPtr[j+(userFrameOffset*NumInputChannels)];
|
|
for (i= 0; i < framePerBuffer; i++)
|
|
{
|
|
temp = asioBufPtr[i];
|
|
if (swap) temp = SwapLong(temp);
|
|
*userBufPtr = temp;
|
|
userBufPtr += NumInputChannels;
|
|
}
|
|
}
|
|
}
|
|
|
|
//-------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
// MUST BE TESTED
|
|
static void Input_Float32_Int32 (ASIOBufferInfo* nativeBuffer, long *inBufPtr, int framePerBuffer, int NumInputChannels, int index, int hostFrameOffset,int userFrameOffset,bool swap)
|
|
{
|
|
unsigned long temp;
|
|
int i,j;
|
|
|
|
for( j=0; j<NumInputChannels; j++ ) {
|
|
unsigned long *asioBufPtr = &((unsigned long*)nativeBuffer[j].buffers[index])[hostFrameOffset];
|
|
long *userBufPtr = &inBufPtr[j+(userFrameOffset*NumInputChannels)];
|
|
for (i= 0; i < framePerBuffer; i++)
|
|
{
|
|
temp = asioBufPtr[i];
|
|
if (swap) temp = SwapLong(temp);
|
|
*userBufPtr = (long)((float)temp * MAX_INT32_FP); // Is temp a value between -1.0 and 1.0 ??
|
|
userBufPtr += NumInputChannels;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
//-------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
static void Input_Int16_Int16 (ASIOBufferInfo* nativeBuffer, short *inBufPtr, int framePerBuffer, int NumInputChannels, int index, int hostFrameOffset,int userFrameOffset,bool swap)
|
|
{
|
|
long temp;
|
|
int i,j;
|
|
|
|
for( j=0; j<NumInputChannels; j++ ) {
|
|
short *asioBufPtr = &((short*)nativeBuffer[j].buffers[index])[hostFrameOffset];
|
|
short *userBufPtr = &inBufPtr[j+(userFrameOffset*NumInputChannels)];
|
|
for (i= 0; i < framePerBuffer; i++)
|
|
{
|
|
temp = asioBufPtr[i];
|
|
if (swap) temp = SwapShort(temp);
|
|
*userBufPtr = (short)temp;
|
|
userBufPtr += NumInputChannels;
|
|
}
|
|
}
|
|
}
|
|
|
|
//-------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
static void Input_Int32_Int16 (ASIOBufferInfo* nativeBuffer, short *inBufPtr, int framePerBuffer, int NumInputChannels, int index, int hostFrameOffset, int userFrameOffset,uint32 flags,bool swap)
|
|
{
|
|
long temp;
|
|
int i,j;
|
|
|
|
if( flags & paDitherOff )
|
|
{
|
|
for( j=0; j<NumInputChannels; j++ ) {
|
|
long *asioBufPtr = &((long*)nativeBuffer[j].buffers[index])[hostFrameOffset];
|
|
short *userBufPtr = &inBufPtr[j+(userFrameOffset*NumInputChannels)];
|
|
for (i= 0; i < framePerBuffer; i++)
|
|
{
|
|
temp = asioBufPtr[i];
|
|
if (swap) temp = SwapLong(temp);
|
|
*userBufPtr = (short)(temp>>16);
|
|
userBufPtr += NumInputChannels;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for( j=0; j<NumInputChannels; j++ ) {
|
|
long *asioBufPtr = &((long*)nativeBuffer[j].buffers[index])[hostFrameOffset];
|
|
short *userBufPtr = &inBufPtr[j+(userFrameOffset*NumInputChannels)];
|
|
for (i= 0; i < framePerBuffer; i++)
|
|
{
|
|
temp = asioBufPtr[i];
|
|
if (swap) temp = SwapLong(temp);
|
|
temp = (temp >> 1) + Pa_TriangularDither();
|
|
temp = temp >> 15;
|
|
temp = (short) ClipShort(temp);
|
|
*userBufPtr = (short)temp;
|
|
userBufPtr += NumInputChannels;
|
|
}
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
//-------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
// MUST BE TESTED
|
|
static void Input_Float32_Int16 (ASIOBufferInfo* nativeBuffer, short *inBufPtr, int framePerBuffer, int NumInputChannels, int index, int hostFrameOffset,int userFrameOffset,uint32 flags,bool swap)
|
|
{
|
|
unsigned long temp;
|
|
int i,j;
|
|
|
|
if( flags & paDitherOff )
|
|
{
|
|
for( j=0; j<NumInputChannels; j++ ) {
|
|
unsigned long *asioBufPtr = &((unsigned long*)nativeBuffer[j].buffers[index])[hostFrameOffset];
|
|
short *userBufPtr = &inBufPtr[j+(userFrameOffset*NumInputChannels)];
|
|
for (i= 0; i < framePerBuffer; i++)
|
|
{
|
|
temp = asioBufPtr[i];
|
|
if (swap) temp = SwapLong(temp);
|
|
*userBufPtr = (short)((float)temp * MAX_INT16_FP); // Is temp a value between -1.0 and 1.0 ??
|
|
userBufPtr += NumInputChannels;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for( j=0; j<NumInputChannels; j++ ) {
|
|
unsigned long *asioBufPtr = &((unsigned long*)nativeBuffer[j].buffers[index])[hostFrameOffset];
|
|
short *userBufPtr = &inBufPtr[j+(userFrameOffset*NumInputChannels)];
|
|
for (i= 0; i < framePerBuffer; i++)
|
|
{
|
|
float dither = Pa_TriangularDither()*DITHER_SCALE;
|
|
temp = asioBufPtr[i];
|
|
if (swap) temp = SwapLong(temp);
|
|
temp = (short)(((float)temp * MAX_INT16_FP) + dither);
|
|
temp = ClipShort(temp);
|
|
*userBufPtr = (short)temp;
|
|
userBufPtr += NumInputChannels;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
//-------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
static void Input_Int16_Int8 (ASIOBufferInfo* nativeBuffer, char *inBufPtr, int framePerBuffer, int NumInputChannels, int index, int hostFrameOffset,int userFrameOffset, uint32 flags,bool swap)
|
|
{
|
|
long temp;
|
|
int i,j;
|
|
|
|
if( flags & paDitherOff )
|
|
{
|
|
for( j=0; j<NumInputChannels; j++ ) {
|
|
short *asioBufPtr = &((short*)nativeBuffer[j].buffers[index])[hostFrameOffset];
|
|
char *userBufPtr = &inBufPtr[j+(userFrameOffset*NumInputChannels)];
|
|
for (i= 0; i < framePerBuffer; i++)
|
|
{
|
|
temp = asioBufPtr[i];
|
|
if (swap) temp = SwapShort(temp);
|
|
*userBufPtr = (char)(temp>>8);
|
|
userBufPtr += NumInputChannels;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for( j=0; j<NumInputChannels; j++ ) {
|
|
short *asioBufPtr = &((short*)nativeBuffer[j].buffers[index])[hostFrameOffset];
|
|
char *userBufPtr = &inBufPtr[j+(userFrameOffset*NumInputChannels)];
|
|
for (i= 0; i < framePerBuffer; i++)
|
|
{
|
|
temp = asioBufPtr[i];
|
|
if (swap) temp = SwapShort(temp);
|
|
temp += Pa_TriangularDither() >> 8;
|
|
temp = ClipShort(temp);
|
|
*userBufPtr = (char)(temp>>8);
|
|
userBufPtr += NumInputChannels;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
//-------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
static void Input_Int32_Int8 (ASIOBufferInfo* nativeBuffer, char *inBufPtr, int framePerBuffer, int NumInputChannels, int index, int hostFrameOffset, int userFrameOffset, uint32 flags,bool swap)
|
|
{
|
|
long temp;
|
|
int i,j;
|
|
|
|
if( flags & paDitherOff )
|
|
{
|
|
for( j=0; j<NumInputChannels; j++ ) {
|
|
long *asioBufPtr = &((long*)nativeBuffer[j].buffers[index])[hostFrameOffset];
|
|
char *userBufPtr = &inBufPtr[j+(userFrameOffset*NumInputChannels)];
|
|
for (i= 0; i < framePerBuffer; i++)
|
|
{
|
|
temp = asioBufPtr[i];
|
|
if (swap) temp = SwapLong(temp);
|
|
*userBufPtr = (char)(temp>>24);
|
|
userBufPtr += NumInputChannels;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for( j=0; j<NumInputChannels; j++ ) {
|
|
long *asioBufPtr = &((long*)nativeBuffer[j].buffers[index])[hostFrameOffset];
|
|
char *userBufPtr = &inBufPtr[j+(userFrameOffset*NumInputChannels)];
|
|
for (i= 0; i < framePerBuffer; i++)
|
|
{
|
|
temp = asioBufPtr[i];
|
|
if (swap) temp = SwapLong(temp);
|
|
temp = temp>>16; // Shift to get a 16 bit value, then use the 16 bits to 8 bits code (MUST BE CHECHED)
|
|
temp += Pa_TriangularDither() >> 8;
|
|
temp = ClipShort(temp);
|
|
*userBufPtr = (char)(temp >> 8);
|
|
userBufPtr += NumInputChannels;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
//-------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
// MUST BE TESTED
|
|
|
|
static void Input_Float32_Int8 (ASIOBufferInfo* nativeBuffer, char *inBufPtr, int framePerBuffer, int NumInputChannels, int index, int hostFrameOffset,int userFrameOffset, uint32 flags,bool swap)
|
|
{
|
|
unsigned long temp;
|
|
int i,j;
|
|
|
|
if( flags & paDitherOff )
|
|
{
|
|
for( j=0; j<NumInputChannels; j++ ) {
|
|
unsigned long *asioBufPtr = &((unsigned long*)nativeBuffer[j].buffers[index])[hostFrameOffset];
|
|
char *userBufPtr = &inBufPtr[j+(userFrameOffset*NumInputChannels)];
|
|
for (i= 0; i < framePerBuffer; i++)
|
|
{
|
|
temp = asioBufPtr[i];
|
|
if (swap) temp = SwapLong(temp);
|
|
*userBufPtr = (char)((float)temp*MAX_INT8_FP); // Is temp a value between -1.0 and 1.0 ??
|
|
userBufPtr += NumInputChannels;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for( j=0; j<NumInputChannels; j++ ) {
|
|
unsigned long *asioBufPtr = &((unsigned long*)nativeBuffer[j].buffers[index])[hostFrameOffset];
|
|
char *userBufPtr = &inBufPtr[j+(userFrameOffset*NumInputChannels)];
|
|
for (i= 0; i < framePerBuffer; i++)
|
|
{
|
|
float dither = Pa_TriangularDither()*DITHER_SCALE;
|
|
temp = asioBufPtr[i];
|
|
if (swap) temp = SwapLong(temp);
|
|
temp = (char)(((float)temp * MAX_INT8_FP) + dither);
|
|
temp = ClipChar(temp);
|
|
*userBufPtr = (char)temp;
|
|
userBufPtr += NumInputChannels;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
//-------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
static void Input_Int16_IntU8 (ASIOBufferInfo* nativeBuffer, unsigned char *inBufPtr, int framePerBuffer, int NumInputChannels, int index, int hostFrameOffset,int userFrameOffset, uint32 flags,bool swap)
|
|
{
|
|
long temp;
|
|
int i,j;
|
|
|
|
if( flags & paDitherOff )
|
|
{
|
|
for( j=0; j<NumInputChannels; j++ ) {
|
|
short *asioBufPtr = &((short*)nativeBuffer[j].buffers[index])[hostFrameOffset];
|
|
unsigned char *userBufPtr = &inBufPtr[j+(userFrameOffset*NumInputChannels)];
|
|
for (i= 0; i < framePerBuffer; i++)
|
|
{
|
|
temp = asioBufPtr[i];
|
|
if (swap) temp = SwapShort(temp);
|
|
*userBufPtr = (unsigned char)((temp>>8) + 0x80);
|
|
userBufPtr += NumInputChannels;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for( j=0; j<NumInputChannels; j++ ) {
|
|
short *asioBufPtr = &((short*)nativeBuffer[j].buffers[index])[hostFrameOffset];
|
|
unsigned char *userBufPtr = &inBufPtr[j+(userFrameOffset*NumInputChannels)];
|
|
for (i= 0; i < framePerBuffer; i++)
|
|
{
|
|
temp = asioBufPtr[i];
|
|
if (swap) temp = SwapShort(temp);
|
|
temp += Pa_TriangularDither() >> 8;
|
|
temp = ClipShort(temp);
|
|
*userBufPtr = (unsigned char)((temp>>8) + 0x80);
|
|
userBufPtr += NumInputChannels;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
//-------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
static void Input_Int32_IntU8 (ASIOBufferInfo* nativeBuffer, unsigned char *inBufPtr, int framePerBuffer, int NumInputChannels, int index, int hostFrameOffset, int userFrameOffset,uint32 flags,bool swap)
|
|
{
|
|
long temp;
|
|
int i,j;
|
|
|
|
if( flags & paDitherOff )
|
|
{
|
|
for( j=0; j<NumInputChannels; j++ ) {
|
|
long *asioBufPtr = &((long*)nativeBuffer[j].buffers[index])[hostFrameOffset];
|
|
unsigned char *userBufPtr = &inBufPtr[j+(userFrameOffset*NumInputChannels)];
|
|
for (i= 0; i < framePerBuffer; i++)
|
|
{
|
|
temp = asioBufPtr[i];
|
|
if (swap) temp = SwapLong(temp);
|
|
*userBufPtr = (unsigned char)((temp>>24) + 0x80);
|
|
userBufPtr += NumInputChannels;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for( j=0; j<NumInputChannels; j++ ) {
|
|
long *asioBufPtr = &((long*)nativeBuffer[j].buffers[index])[hostFrameOffset];
|
|
unsigned char *userBufPtr = &inBufPtr[j+(userFrameOffset*NumInputChannels)];
|
|
for (i= 0; i < framePerBuffer; i++)
|
|
{
|
|
temp = asioBufPtr[i];
|
|
if (swap) temp = SwapLong(temp);
|
|
temp = temp>>16; // Shift to get a 16 bit value, then use the 16 bits to 8 bits code (MUST BE CHECHED)
|
|
temp += Pa_TriangularDither() >> 8;
|
|
temp = ClipShort(temp);
|
|
*userBufPtr = (unsigned char)((temp>>8) + 0x80);
|
|
userBufPtr += NumInputChannels;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
//-------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
// MUST BE TESTED
|
|
|
|
static void Input_Float32_IntU8 (ASIOBufferInfo* nativeBuffer, unsigned char *inBufPtr, int framePerBuffer, int NumInputChannels, int index, int hostFrameOffset,int userFrameOffset, uint32 flags,bool swap)
|
|
{
|
|
unsigned long temp;
|
|
int i,j;
|
|
|
|
if( flags & paDitherOff )
|
|
{
|
|
for( j=0; j<NumInputChannels; j++ ) {
|
|
unsigned long *asioBufPtr = &((unsigned long*)nativeBuffer[j].buffers[index])[hostFrameOffset];
|
|
unsigned char *userBufPtr = &inBufPtr[j+(userFrameOffset*NumInputChannels)];
|
|
for (i= 0; i < framePerBuffer; i++)
|
|
{
|
|
temp = asioBufPtr[i];
|
|
if (swap) temp = SwapLong(temp);
|
|
*userBufPtr = (unsigned char)(((float)temp*MAX_INT8_FP) + 0x80);
|
|
userBufPtr += NumInputChannels;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for( j=0; j<NumInputChannels; j++ ) {
|
|
unsigned long *asioBufPtr = &((unsigned long*)nativeBuffer[j].buffers[index])[hostFrameOffset];
|
|
unsigned char *userBufPtr = &inBufPtr[j+(userFrameOffset*NumInputChannels)];
|
|
for (i= 0; i < framePerBuffer; i++)
|
|
{
|
|
float dither = Pa_TriangularDither()*DITHER_SCALE;
|
|
temp = asioBufPtr[i];
|
|
if (swap) temp = SwapLong(temp);
|
|
temp = (char)(((float)temp * MAX_INT8_FP) + dither);
|
|
temp = ClipChar(temp);
|
|
*userBufPtr = (unsigned char)(temp + 0x80);
|
|
userBufPtr += NumInputChannels;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
// OUPUT
|
|
//-------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
static void Output_Float32_Int16 (ASIOBufferInfo* nativeBuffer, float *outBufPtr, int framePerBuffer, int NumInputChannels, int NumOuputChannels, int index, int hostFrameOffset, int userFrameOffset,uint32 flags, bool swap)
|
|
{
|
|
long temp;
|
|
int i,j;
|
|
|
|
if( flags & paDitherOff )
|
|
{
|
|
if( flags & paClipOff ) /* NOTHING */
|
|
{
|
|
for( j=0; j<NumOuputChannels; j++ ) {
|
|
short *asioBufPtr = &((short*)nativeBuffer[j+NumInputChannels].buffers[index])[hostFrameOffset];
|
|
float *userBufPtr = &outBufPtr[j+(userFrameOffset*NumOuputChannels)];
|
|
|
|
for (i= 0; i < framePerBuffer; i++)
|
|
{
|
|
temp = (short) (*userBufPtr * MAX_INT16_FP);
|
|
if (swap) temp = SwapShort(temp);
|
|
asioBufPtr[i] = (short)temp;
|
|
userBufPtr += NumOuputChannels;
|
|
}
|
|
}
|
|
}
|
|
else /* CLIP */
|
|
{
|
|
for( j=0; j<NumOuputChannels; j++ ) {
|
|
short *asioBufPtr = &((short*)nativeBuffer[j+NumInputChannels].buffers[index])[hostFrameOffset];
|
|
float *userBufPtr = &outBufPtr[j+(userFrameOffset*NumOuputChannels)];
|
|
|
|
for (i= 0; i < framePerBuffer; i++)
|
|
{
|
|
temp = (long) (*userBufPtr * MAX_INT16_FP);
|
|
temp = ClipShort(temp);
|
|
if (swap) temp = SwapShort(temp);
|
|
asioBufPtr[i] = (short)temp;
|
|
userBufPtr += NumOuputChannels;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* If you dither then you have to clip because dithering could push the signal out of range! */
|
|
for( j=0; j<NumOuputChannels; j++ ) {
|
|
short *asioBufPtr = &((short*)nativeBuffer[j+NumInputChannels].buffers[index])[hostFrameOffset];
|
|
float *userBufPtr = &outBufPtr[j+(userFrameOffset*NumOuputChannels)];
|
|
|
|
for (i= 0; i < framePerBuffer; i++)
|
|
{
|
|
float dither = Pa_TriangularDither()*DITHER_SCALE;
|
|
temp = (long) ((*userBufPtr * MAX_INT16_FP) + dither);
|
|
temp = ClipShort(temp);
|
|
if (swap) temp = SwapShort(temp);
|
|
asioBufPtr[i] = (short)temp;
|
|
userBufPtr += NumOuputChannels;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
//-------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
static void Output_Float32_Int32 (ASIOBufferInfo* nativeBuffer, float *outBufPtr, int framePerBuffer, int NumInputChannels, int NumOuputChannels, int index, int hostFrameOffset, int userFrameOffset,uint32 flags,bool swap)
|
|
{
|
|
long temp;
|
|
int i,j;
|
|
|
|
if( flags & paClipOff )
|
|
{
|
|
for (j= 0; j < NumOuputChannels; j++)
|
|
{
|
|
long *asioBufPtr = &((long*)nativeBuffer[j+NumInputChannels].buffers[index])[hostFrameOffset];
|
|
float *userBufPtr = &outBufPtr[j+(userFrameOffset*NumOuputChannels)];
|
|
for( i=0; i<framePerBuffer; i++ )
|
|
{
|
|
temp = (long) (*userBufPtr * MAX_INT32_FP);
|
|
if (swap) temp = SwapLong(temp);
|
|
asioBufPtr[i] = temp;
|
|
userBufPtr += NumOuputChannels;
|
|
}
|
|
}
|
|
}
|
|
else // CLIP *
|
|
{
|
|
for (j= 0; j < NumOuputChannels; j++)
|
|
{
|
|
long *asioBufPtr = &((long*)nativeBuffer[j+NumInputChannels].buffers[index])[hostFrameOffset];
|
|
float *userBufPtr = &outBufPtr[j+(userFrameOffset*NumOuputChannels)];
|
|
for( i=0; i<framePerBuffer; i++ )
|
|
{
|
|
float temp1 = *userBufPtr;
|
|
temp1 = ClipFloat(temp1);
|
|
temp = (long) (temp1*MAX_INT32_FP);
|
|
if (swap) temp = SwapLong(temp);
|
|
asioBufPtr[i] = temp;
|
|
userBufPtr += NumOuputChannels;
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
|
|
//-------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
// MUST BE TESTED
|
|
|
|
static void Output_Float32_Float32 (ASIOBufferInfo* nativeBuffer, float *outBufPtr, int framePerBuffer, int NumInputChannels, int NumOuputChannels, int index, int hostFrameOffset, int userFrameOffset,uint32 flags,bool swap)
|
|
{
|
|
long temp;
|
|
int i,j;
|
|
|
|
if( flags & paClipOff )
|
|
{
|
|
for (j= 0; j < NumOuputChannels; j++)
|
|
{
|
|
float *asioBufPtr = &((float*)nativeBuffer[j+NumInputChannels].buffers[index])[hostFrameOffset];
|
|
float *userBufPtr = &outBufPtr[j+(userFrameOffset*NumOuputChannels)];
|
|
for( i=0; i<framePerBuffer; i++ )
|
|
{
|
|
temp = (long) *userBufPtr;
|
|
if (swap) temp = SwapLong(temp);
|
|
asioBufPtr[i] = (float)temp;
|
|
userBufPtr += NumOuputChannels;
|
|
}
|
|
}
|
|
|
|
}
|
|
else /* CLIP */
|
|
{
|
|
for (j= 0; j < NumOuputChannels; j++)
|
|
{
|
|
float *asioBufPtr = &((float*)nativeBuffer[j+NumInputChannels].buffers[index])[hostFrameOffset];
|
|
float *userBufPtr = &outBufPtr[j+(userFrameOffset*NumOuputChannels)];
|
|
for( i=0; i<framePerBuffer; i++ )
|
|
{
|
|
float temp1 = *userBufPtr;
|
|
temp1 = ClipFloat(temp1); // Is is necessary??
|
|
temp = (long) temp1;
|
|
if (swap) temp = SwapLong(temp);
|
|
asioBufPtr[i] = (float)temp;
|
|
userBufPtr += NumOuputChannels;
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
//-------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
static void Output_Int32_Int16(ASIOBufferInfo* nativeBuffer, long *outBufPtr, int framePerBuffer, int NumInputChannels, int NumOuputChannels, int index, int hostFrameOffset,int userFrameOffset,uint32 flags,bool swap)
|
|
{
|
|
long temp;
|
|
int i,j;
|
|
|
|
if( flags & paDitherOff )
|
|
{
|
|
for (j= 0; j < NumOuputChannels; j++)
|
|
{
|
|
short *asioBufPtr = &((short*)nativeBuffer[j+NumInputChannels].buffers[index])[hostFrameOffset];
|
|
long *userBufPtr = &outBufPtr[j+(userFrameOffset*NumOuputChannels)];
|
|
for( i=0; i<framePerBuffer; i++ )
|
|
{
|
|
temp = (short) ((*userBufPtr) >> 16);
|
|
if (swap) temp = SwapShort(temp);
|
|
asioBufPtr[i] = (short)temp;
|
|
userBufPtr += NumOuputChannels;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (j= 0; j < NumOuputChannels; j++)
|
|
{
|
|
short *asioBufPtr = &((short*)nativeBuffer[j+NumInputChannels].buffers[index])[hostFrameOffset];
|
|
long *userBufPtr = &outBufPtr[j+(userFrameOffset*NumOuputChannels)];
|
|
for( i=0; i<framePerBuffer; i++ )
|
|
{
|
|
temp = (*userBufPtr >> 1) + Pa_TriangularDither();
|
|
temp = temp >> 15;
|
|
temp = (short) ClipShort(temp);
|
|
if (swap) temp = SwapShort(temp);
|
|
asioBufPtr[i] = (short)temp;
|
|
userBufPtr += NumOuputChannels;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
//-------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
static void Output_Int32_Int32(ASIOBufferInfo* nativeBuffer, long *outBufPtr, int framePerBuffer, int NumInputChannels, int NumOuputChannels, int index, int hostFrameOffset,int userFrameOffset,uint32 flags,bool swap)
|
|
{
|
|
long temp;
|
|
int i,j;
|
|
|
|
for (j= 0; j < NumOuputChannels; j++)
|
|
{
|
|
long *asioBufPtr = &((long*)nativeBuffer[j+NumInputChannels].buffers[index])[hostFrameOffset];
|
|
long *userBufPtr = &outBufPtr[j+(userFrameOffset*NumOuputChannels)];
|
|
for( i=0; i<framePerBuffer; i++ )
|
|
{
|
|
temp = *userBufPtr;
|
|
if (swap) temp = SwapLong(temp);
|
|
asioBufPtr[i] = temp;
|
|
userBufPtr += NumOuputChannels;
|
|
}
|
|
}
|
|
}
|
|
|
|
//-------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
// MUST BE CHECKED
|
|
|
|
static void Output_Int32_Float32(ASIOBufferInfo* nativeBuffer, long *outBufPtr, int framePerBuffer, int NumInputChannels, int NumOuputChannels, int index, int hostFrameOffset,int userFrameOffset,uint32 flags,bool swap)
|
|
{
|
|
long temp;
|
|
int i,j;
|
|
|
|
for (j= 0; j < NumOuputChannels; j++)
|
|
{
|
|
float *asioBufPtr = &((float*)nativeBuffer[j+NumInputChannels].buffers[index])[hostFrameOffset];
|
|
long *userBufPtr = &outBufPtr[j+(userFrameOffset*NumOuputChannels)];
|
|
for( i=0; i<framePerBuffer; i++ )
|
|
{
|
|
temp = *userBufPtr;
|
|
if (swap) temp = SwapLong(temp);
|
|
asioBufPtr[i] = ((float)temp) * (1.0f / MAX_INT32_FP);
|
|
userBufPtr += NumOuputChannels;
|
|
}
|
|
}
|
|
}
|
|
|
|
//-------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
static void Output_Int16_Int16(ASIOBufferInfo* nativeBuffer, short *outBufPtr, int framePerBuffer, int NumInputChannels, int NumOuputChannels, int index, int hostFrameOffset, int userFrameOffset,bool swap)
|
|
{
|
|
long temp;
|
|
int i,j;
|
|
|
|
for (j= 0; j < NumOuputChannels; j++)
|
|
{
|
|
short *asioBufPtr = &((short*)nativeBuffer[j+NumInputChannels].buffers[index])[hostFrameOffset];
|
|
short *userBufPtr = &outBufPtr[j+(userFrameOffset*NumOuputChannels)];
|
|
for( i=0; i<framePerBuffer; i++ )
|
|
{
|
|
temp = *userBufPtr;
|
|
if (swap) temp = SwapShort(temp);
|
|
asioBufPtr[i] = (short)temp;
|
|
userBufPtr += NumOuputChannels;
|
|
}
|
|
}
|
|
}
|
|
|
|
//-------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
static void Output_Int16_Int32(ASIOBufferInfo* nativeBuffer, short *outBufPtr, int framePerBuffer, int NumInputChannels, int NumOuputChannels, int index, int hostFrameOffset,int userFrameOffset, bool swap)
|
|
{
|
|
long temp;
|
|
int i,j;
|
|
|
|
for (j= 0; j < NumOuputChannels; j++)
|
|
{
|
|
long *asioBufPtr = &((long*)nativeBuffer[j+NumInputChannels].buffers[index])[hostFrameOffset];
|
|
short *userBufPtr = &outBufPtr[j+(userFrameOffset*NumOuputChannels)];
|
|
for( i=0; i<framePerBuffer; i++ )
|
|
{
|
|
temp = (*userBufPtr)<<16;
|
|
if (swap) temp = SwapLong(temp);
|
|
asioBufPtr[i] = temp;
|
|
userBufPtr += NumOuputChannels;
|
|
}
|
|
}
|
|
}
|
|
|
|
//-------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
// MUST BE CHECKED
|
|
static void Output_Int16_Float32(ASIOBufferInfo* nativeBuffer, short *outBufPtr, int framePerBuffer, int NumInputChannels, int NumOuputChannels, int index, int hostFrameOffset,int userFrameOffset, bool swap)
|
|
{
|
|
long temp;
|
|
int i,j;
|
|
|
|
for (j= 0; j < NumOuputChannels; j++)
|
|
{
|
|
float *asioBufPtr = &((float*)nativeBuffer[j+NumInputChannels].buffers[index])[hostFrameOffset];
|
|
short *userBufPtr = &outBufPtr[j+(userFrameOffset*NumOuputChannels)];
|
|
for( i=0; i<framePerBuffer; i++ )
|
|
{
|
|
temp = *userBufPtr;
|
|
asioBufPtr[i] = ((float)temp) * (1.0f / MAX_INT16_FP);
|
|
userBufPtr += NumOuputChannels;
|
|
}
|
|
}
|
|
}
|
|
//-------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
static void Output_Int8_Int16(ASIOBufferInfo* nativeBuffer, char *outBufPtr, int framePerBuffer, int NumInputChannels, int NumOuputChannels, int index, int hostFrameOffset,int userFrameOffset, bool swap)
|
|
{
|
|
long temp;
|
|
int i,j;
|
|
|
|
for (j= 0; j < NumOuputChannels; j++)
|
|
{
|
|
short *asioBufPtr = &((short*)nativeBuffer[j+NumInputChannels].buffers[index])[hostFrameOffset];
|
|
char *userBufPtr = &outBufPtr[j+(userFrameOffset*NumOuputChannels)];
|
|
for( i=0; i<framePerBuffer; i++ )
|
|
{
|
|
temp = (short)(*userBufPtr)<<8;
|
|
if (swap) temp = SwapShort(temp);
|
|
asioBufPtr[i] = (short)temp;
|
|
userBufPtr += NumOuputChannels;
|
|
}
|
|
}
|
|
}
|
|
|
|
//-------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
static void Output_Int8_Int32(ASIOBufferInfo* nativeBuffer, char *outBufPtr, int framePerBuffer, int NumInputChannels, int NumOuputChannels, int index, int hostFrameOffset,int userFrameOffset, bool swap)
|
|
{
|
|
long temp;
|
|
int i,j;
|
|
|
|
for (j= 0; j < NumOuputChannels; j++)
|
|
{
|
|
long *asioBufPtr = &((long*)nativeBuffer[j+NumInputChannels].buffers[index])[hostFrameOffset];
|
|
char *userBufPtr = &outBufPtr[j+(userFrameOffset*NumOuputChannels)];
|
|
for( i=0; i<framePerBuffer; i++ )
|
|
{
|
|
temp = (short)(*userBufPtr)<<24;
|
|
if (swap) temp = SwapLong(temp);
|
|
asioBufPtr[i] = temp;
|
|
userBufPtr += NumOuputChannels;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
//-------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
// MUST BE CHECKED
|
|
static void Output_Int8_Float32(ASIOBufferInfo* nativeBuffer, char *outBufPtr, int framePerBuffer, int NumInputChannels, int NumOuputChannels, int index, int hostFrameOffset,int userFrameOffset, bool swap)
|
|
{
|
|
long temp;
|
|
int i,j;
|
|
|
|
for (j= 0; j < NumOuputChannels; j++)
|
|
{
|
|
long *asioBufPtr = &((long*)nativeBuffer[j+NumInputChannels].buffers[index])[hostFrameOffset];
|
|
char *userBufPtr = &outBufPtr[j+(userFrameOffset*NumOuputChannels)];
|
|
for( i=0; i<framePerBuffer; i++ )
|
|
{
|
|
temp = *userBufPtr;
|
|
asioBufPtr[i] = (long)(((float)temp) * (1.0f / MAX_INT8_FP));
|
|
userBufPtr += NumOuputChannels;
|
|
}
|
|
}
|
|
}
|
|
|
|
//-------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
static void Output_IntU8_Int16(ASIOBufferInfo* nativeBuffer, unsigned char *outBufPtr, int framePerBuffer, int NumInputChannels, int NumOuputChannels, int index, int hostFrameOffset,int userFrameOffset, bool swap)
|
|
{
|
|
long temp;
|
|
int i,j;
|
|
|
|
for (j= 0; j < NumOuputChannels; j++)
|
|
{
|
|
short *asioBufPtr = &((short*)nativeBuffer[j+NumInputChannels].buffers[index])[hostFrameOffset];
|
|
unsigned char *userBufPtr = &outBufPtr[j+(userFrameOffset*NumOuputChannels)];
|
|
for( i=0; i<framePerBuffer; i++ )
|
|
{
|
|
temp = ((short)((*userBufPtr) - 0x80)) << 8;
|
|
if (swap) temp = SwapShort(temp);
|
|
asioBufPtr[i] = (short)temp;
|
|
userBufPtr += NumOuputChannels;
|
|
}
|
|
}
|
|
}
|
|
|
|
//-------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
static void Output_IntU8_Int32(ASIOBufferInfo* nativeBuffer, unsigned char *outBufPtr, int framePerBuffer, int NumInputChannels, int NumOuputChannels, int index, int hostFrameOffset,int userFrameOffset, bool swap)
|
|
{
|
|
long temp;
|
|
int i,j;
|
|
|
|
for (j= 0; j < NumOuputChannels; j++)
|
|
{
|
|
long *asioBufPtr = &((long*)nativeBuffer[j+NumInputChannels].buffers[index])[hostFrameOffset];
|
|
unsigned char *userBufPtr = &outBufPtr[j+(userFrameOffset*NumOuputChannels)];
|
|
for( i=0; i<framePerBuffer; i++ )
|
|
{
|
|
temp = ((short)((*userBufPtr) - 0x80)) << 24;
|
|
if (swap) temp = SwapLong(temp);
|
|
asioBufPtr[i] = temp;
|
|
userBufPtr += NumOuputChannels;
|
|
}
|
|
}
|
|
}
|
|
|
|
//-------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
// MUST BE CHECKED
|
|
|
|
static void Output_IntU8_Float32(ASIOBufferInfo* nativeBuffer, unsigned char *outBufPtr, int framePerBuffer, int NumInputChannels, int NumOuputChannels, int index, int hostFrameOffset,int userFrameOffset, bool swap)
|
|
{
|
|
long temp;
|
|
int i,j;
|
|
|
|
for (j= 0; j < NumOuputChannels; j++)
|
|
{
|
|
float *asioBufPtr = &((float*)nativeBuffer[j+NumInputChannels].buffers[index])[hostFrameOffset];
|
|
unsigned char *userBufPtr = &outBufPtr[j+(userFrameOffset*NumOuputChannels)];
|
|
for( i=0; i<framePerBuffer; i++ )
|
|
{
|
|
temp = ((short)((*userBufPtr) - 0x80)) << 24;
|
|
asioBufPtr[i] = ((float)temp) * (1.0f / MAX_INT32_FP);
|
|
userBufPtr += NumOuputChannels;
|
|
}
|
|
}
|
|
}
|
|
|
|
//-------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
static void Pa_ASIO_Clear_Output_16 (ASIOBufferInfo* nativeBuffer, long frames, long NumInputChannels, long NumOuputChannels, long index, long hostFrameOffset)
|
|
{
|
|
int i,j;
|
|
|
|
for( j=0; j<NumOuputChannels; j++ ) {
|
|
short *asioBufPtr = &((short*)nativeBuffer[j+NumInputChannels].buffers[index])[hostFrameOffset];
|
|
for (i= 0; i < frames; i++) {asioBufPtr[i] = 0; }
|
|
}
|
|
}
|
|
|
|
//-------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
static void Pa_ASIO_Clear_Output_32 (ASIOBufferInfo* nativeBuffer, long frames, long NumInputChannels, long NumOuputChannels, long index, long hostFrameOffset)
|
|
{
|
|
int i,j;
|
|
|
|
for( j=0; j<NumOuputChannels; j++ ) {
|
|
long *asioBufPtr = &((long*)nativeBuffer[j+NumInputChannels].buffers[index])[hostFrameOffset];
|
|
for (i= 0; i < frames; i++) {asioBufPtr[i] = 0; }
|
|
}
|
|
}
|
|
|
|
|
|
//-------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
static void Pa_ASIO_Adaptor_Init()
|
|
{
|
|
if (asioDriverInfo.past->past_FramesPerUserBuffer <= asioDriverInfo.past_FramesPerHostBuffer) {
|
|
asioDriverInfo.pahsc_hostOutputBufferFrameOffset = asioDriverInfo.pahsc_OutputBufferOffset;
|
|
asioDriverInfo.pahsc_userInputBufferFrameOffset = 0; // empty
|
|
asioDriverInfo.pahsc_userOutputBufferFrameOffset = asioDriverInfo.past->past_FramesPerUserBuffer; // empty
|
|
}else {
|
|
asioDriverInfo.pahsc_hostOutputBufferFrameOffset = 0; // empty
|
|
asioDriverInfo.pahsc_userInputBufferFrameOffset = asioDriverInfo.pahsc_InputBufferOffset;
|
|
asioDriverInfo.pahsc_userOutputBufferFrameOffset = asioDriverInfo.past->past_FramesPerUserBuffer; // empty
|
|
}
|
|
}
|
|
|
|
|
|
//-------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
// FIXME : optimization for Input only or output only modes (really necessary ??)
|
|
static void Pa_ASIO_Callback_Input( long index)
|
|
{
|
|
internalPortAudioStream *past = asioDriverInfo.past;
|
|
long framesInputHostBuffer = asioDriverInfo.past_FramesPerHostBuffer; // number of frames available into the host input buffer
|
|
long framesInputUserBuffer; // number of frames needed to complete the user input buffer
|
|
long framesOutputHostBuffer; // number of frames needed to complete the host output buffer
|
|
long framesOuputUserBuffer; // number of frames available into the user output buffer
|
|
long userResult;
|
|
long tmp;
|
|
|
|
/* Fill host ASIO output with remaining frames in user output */
|
|
framesOutputHostBuffer = asioDriverInfo.past_FramesPerHostBuffer;
|
|
framesOuputUserBuffer = asioDriverInfo.past->past_FramesPerUserBuffer - asioDriverInfo.pahsc_userOutputBufferFrameOffset;
|
|
tmp = min(framesOutputHostBuffer, framesOuputUserBuffer);
|
|
framesOutputHostBuffer -= tmp;
|
|
Pa_ASIO_Callback_Output(index,tmp);
|
|
|
|
/* Available frames in hostInputBuffer */
|
|
while (framesInputHostBuffer > 0) {
|
|
|
|
/* Number of frames needed to complete an user input buffer */
|
|
framesInputUserBuffer = asioDriverInfo.past->past_FramesPerUserBuffer - asioDriverInfo.pahsc_userInputBufferFrameOffset;
|
|
|
|
if (framesInputHostBuffer >= framesInputUserBuffer) {
|
|
|
|
/* Convert ASIO input to user input */
|
|
Pa_ASIO_Convert_Inter_Input (asioDriverInfo.bufferInfos,
|
|
past->past_InputBuffer,
|
|
asioDriverInfo.pahsc_NumInputChannels ,
|
|
asioDriverInfo.pahsc_NumOutputChannels,
|
|
framesInputUserBuffer,
|
|
asioDriverInfo.past_FramesPerHostBuffer - framesInputHostBuffer,
|
|
asioDriverInfo.pahsc_userInputBufferFrameOffset,
|
|
asioDriverInfo.pahsc_channelInfos[0].type,
|
|
past->past_InputSampleFormat,
|
|
past->past_Flags,
|
|
index);
|
|
|
|
/* Call PortAudio callback */
|
|
userResult = asioDriverInfo.past->past_Callback(past->past_InputBuffer, past->past_OutputBuffer,
|
|
past->past_FramesPerUserBuffer,past->past_FrameCount,past->past_UserData );
|
|
|
|
/* User callback has asked us to stop in the middle of the host buffer */
|
|
if( userResult != 0) {
|
|
|
|
/* Put 0 in the end of the output buffer */
|
|
Pa_ASIO_Clear_Output(asioDriverInfo.bufferInfos,
|
|
asioDriverInfo.pahsc_channelInfos[0].type,
|
|
asioDriverInfo.pahsc_NumInputChannels ,
|
|
asioDriverInfo.pahsc_NumOutputChannels,
|
|
index,
|
|
asioDriverInfo.pahsc_hostOutputBufferFrameOffset,
|
|
asioDriverInfo.past_FramesPerHostBuffer - asioDriverInfo.pahsc_hostOutputBufferFrameOffset);
|
|
|
|
past->past_StopSoon = 1;
|
|
return;
|
|
}
|
|
|
|
|
|
/* Full user ouput buffer : write offset */
|
|
asioDriverInfo.pahsc_userOutputBufferFrameOffset = 0;
|
|
|
|
/* Empty user input buffer : read offset */
|
|
asioDriverInfo.pahsc_userInputBufferFrameOffset = 0;
|
|
|
|
/* Fill host ASIO output */
|
|
tmp = min (past->past_FramesPerUserBuffer,framesOutputHostBuffer);
|
|
Pa_ASIO_Callback_Output(index,tmp);
|
|
|
|
framesOutputHostBuffer -= tmp;
|
|
framesInputHostBuffer -= framesInputUserBuffer;
|
|
|
|
}else {
|
|
|
|
/* Convert ASIO input to user input */
|
|
Pa_ASIO_Convert_Inter_Input (asioDriverInfo.bufferInfos,
|
|
past->past_InputBuffer,
|
|
asioDriverInfo.pahsc_NumInputChannels ,
|
|
asioDriverInfo.pahsc_NumOutputChannels,
|
|
framesInputHostBuffer,
|
|
asioDriverInfo.past_FramesPerHostBuffer - framesInputHostBuffer,
|
|
asioDriverInfo.pahsc_userInputBufferFrameOffset,
|
|
asioDriverInfo.pahsc_channelInfos[0].type,
|
|
past->past_InputSampleFormat,
|
|
past->past_Flags,
|
|
index);
|
|
|
|
/* Update pahsc_userInputBufferFrameOffset */
|
|
asioDriverInfo.pahsc_userInputBufferFrameOffset += framesInputHostBuffer;
|
|
|
|
/* Update framesInputHostBuffer */
|
|
framesInputHostBuffer = 0;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
//-------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
static void Pa_ASIO_Callback_Output(long index, long framePerBuffer)
|
|
{
|
|
internalPortAudioStream *past = asioDriverInfo.past;
|
|
|
|
if (framePerBuffer > 0) {
|
|
|
|
/* Convert user output to ASIO ouput */
|
|
Pa_ASIO_Convert_Inter_Output (asioDriverInfo.bufferInfos,
|
|
past->past_OutputBuffer,
|
|
asioDriverInfo.pahsc_NumInputChannels,
|
|
asioDriverInfo.pahsc_NumOutputChannels,
|
|
framePerBuffer,
|
|
asioDriverInfo.pahsc_hostOutputBufferFrameOffset,
|
|
asioDriverInfo.pahsc_userOutputBufferFrameOffset,
|
|
asioDriverInfo.pahsc_channelInfos[0].type,
|
|
past->past_InputSampleFormat,
|
|
past->past_Flags,
|
|
index);
|
|
|
|
/* Update hostOuputFrameOffset */
|
|
asioDriverInfo.pahsc_hostOutputBufferFrameOffset += framePerBuffer;
|
|
|
|
/* Update userOutputFrameOffset */
|
|
asioDriverInfo.pahsc_userOutputBufferFrameOffset += framePerBuffer;
|
|
}
|
|
}
|
|
//-------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
static void Pa_ASIO_Callback_End()
|
|
{
|
|
/* Empty ASIO ouput : write offset */
|
|
asioDriverInfo.pahsc_hostOutputBufferFrameOffset = 0;
|
|
}
|
|
|
|
//-------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
static void Pa_ASIO_Clear_User_Buffers()
|
|
{
|
|
if( asioDriverInfo.past->past_InputBuffer != NULL )
|
|
{
|
|
memset( asioDriverInfo.past->past_InputBuffer, 0, asioDriverInfo.past->past_InputBufferSize );
|
|
}
|
|
if( asioDriverInfo.past->past_OutputBuffer != NULL )
|
|
{
|
|
memset( asioDriverInfo.past->past_OutputBuffer, 0, asioDriverInfo.past->past_OutputBufferSize );
|
|
}
|
|
}
|
|
|
|
//-------------------------------------------------------------------------------------------------------------------------------------------------------
|
|
static void Pa_ASIO_Clear_Output(ASIOBufferInfo* nativeBuffer,
|
|
ASIOSampleType nativeFormat,
|
|
long NumInputChannels,
|
|
long NumOuputChannels,
|
|
long index,
|
|
long hostFrameOffset,
|
|
long frames)
|
|
{
|
|
|
|
switch (nativeFormat) {
|
|
|
|
case ASIOSTInt16MSB:
|
|
case ASIOSTInt16LSB:
|
|
case ASIOSTInt32MSB16:
|
|
case ASIOSTInt32LSB16:
|
|
Pa_ASIO_Clear_Output_16(nativeBuffer, frames, NumInputChannels, NumOuputChannels, index, hostFrameOffset);
|
|
break;
|
|
|
|
case ASIOSTFloat64MSB:
|
|
case ASIOSTFloat64LSB:
|
|
break;
|
|
|
|
case ASIOSTFloat32MSB:
|
|
case ASIOSTFloat32LSB:
|
|
case ASIOSTInt32MSB:
|
|
case ASIOSTInt32LSB:
|
|
case ASIOSTInt32MSB18:
|
|
case ASIOSTInt32MSB20:
|
|
case ASIOSTInt32MSB24:
|
|
case ASIOSTInt32LSB18:
|
|
case ASIOSTInt32LSB20:
|
|
case ASIOSTInt32LSB24:
|
|
Pa_ASIO_Clear_Output_32(nativeBuffer, frames, NumInputChannels, NumOuputChannels, index, hostFrameOffset);
|
|
break;
|
|
|
|
case ASIOSTInt24MSB:
|
|
case ASIOSTInt24LSB:
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
|
|
//---------------------------------------------------------------------------------------
|
|
static void Pa_ASIO_Convert_Inter_Input(
|
|
ASIOBufferInfo* nativeBuffer,
|
|
void* inputBuffer,
|
|
long NumInputChannels,
|
|
long NumOuputChannels,
|
|
long framePerBuffer,
|
|
long hostFrameOffset,
|
|
long userFrameOffset,
|
|
ASIOSampleType nativeFormat,
|
|
PaSampleFormat paFormat,
|
|
PaStreamFlags flags,
|
|
long index)
|
|
{
|
|
|
|
if((NumInputChannels > 0) && (nativeBuffer != NULL))
|
|
{
|
|
/* Convert from native format to PA format. */
|
|
switch(paFormat)
|
|
{
|
|
case paFloat32:
|
|
{
|
|
float *inBufPtr = (float *) inputBuffer;
|
|
|
|
switch (nativeFormat) {
|
|
case ASIOSTInt16LSB:
|
|
Input_Int16_Float32(nativeBuffer, inBufPtr, framePerBuffer, NumInputChannels, index, hostFrameOffset, userFrameOffset, swap);
|
|
break;
|
|
case ASIOSTInt16MSB:
|
|
Input_Int16_Float32(nativeBuffer, inBufPtr, framePerBuffer, NumInputChannels, index, hostFrameOffset, userFrameOffset,!swap);
|
|
break;
|
|
case ASIOSTInt32LSB:
|
|
Input_Int32_Float32(nativeBuffer, inBufPtr, framePerBuffer, NumInputChannels, index, hostFrameOffset, userFrameOffset,swap);
|
|
break;
|
|
case ASIOSTInt32MSB:
|
|
Input_Int32_Float32(nativeBuffer, inBufPtr, framePerBuffer, NumInputChannels, index, hostFrameOffset, userFrameOffset,!swap);
|
|
break;
|
|
case ASIOSTFloat32LSB: // IEEE 754 32 bit float, as found on Intel x86 architecture
|
|
Input_Float32_Float32(nativeBuffer, inBufPtr, framePerBuffer, NumInputChannels, index, hostFrameOffset, userFrameOffset,swap);
|
|
break;
|
|
case ASIOSTFloat32MSB: // IEEE 754 32 bit float, as found on Intel x86 architecture
|
|
Input_Float32_Float32(nativeBuffer, inBufPtr, framePerBuffer, NumInputChannels, index, hostFrameOffset, userFrameOffset,!swap);
|
|
break;
|
|
|
|
case ASIOSTInt24LSB: // used for 20 bits as well
|
|
case ASIOSTInt24MSB: // used for 20 bits as well
|
|
|
|
case ASIOSTFloat64LSB: // IEEE 754 64 bit double float, as found on Intel x86 architecture
|
|
case ASIOSTFloat64MSB: // IEEE 754 64 bit double float, as found on Intel x86 architecture
|
|
|
|
// these are used for 32 bit data buffer, with different alignment of the data inside
|
|
// 32 bit PCI bus systems can more easily used with these
|
|
|
|
case ASIOSTInt32LSB16: // 32 bit data with 16 bit alignment
|
|
case ASIOSTInt32LSB18: // 32 bit data with 18 bit alignment
|
|
case ASIOSTInt32LSB20: // 32 bit data with 20 bit alignment
|
|
case ASIOSTInt32LSB24: // 32 bit data with 24 bit alignment
|
|
|
|
|
|
case ASIOSTInt32MSB16: // 32 bit data with 16 bit alignment
|
|
case ASIOSTInt32MSB18: // 32 bit data with 18 bit alignment
|
|
case ASIOSTInt32MSB20: // 32 bit data with 20 bit alignment
|
|
case ASIOSTInt32MSB24: // 32 bit data with 24 bit alignment
|
|
DBUG(("Not yet implemented : please report the problem\n"));
|
|
break;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
case paInt32:
|
|
{
|
|
long *inBufPtr = (long *)inputBuffer;
|
|
|
|
switch (nativeFormat) {
|
|
case ASIOSTInt16LSB:
|
|
Input_Int16_Int32(nativeBuffer, inBufPtr, framePerBuffer, NumInputChannels, index, hostFrameOffset,userFrameOffset, swap);
|
|
break;
|
|
case ASIOSTInt16MSB:
|
|
Input_Int16_Int32(nativeBuffer, inBufPtr, framePerBuffer, NumInputChannels, index, hostFrameOffset,userFrameOffset, !swap);
|
|
break;
|
|
case ASIOSTInt32LSB:
|
|
Input_Int32_Int32(nativeBuffer, inBufPtr, framePerBuffer, NumInputChannels, index, hostFrameOffset,userFrameOffset, swap);
|
|
break;
|
|
case ASIOSTInt32MSB:
|
|
Input_Int32_Int32(nativeBuffer, inBufPtr, framePerBuffer, NumInputChannels, index, hostFrameOffset,userFrameOffset, !swap);
|
|
break;
|
|
case ASIOSTFloat32LSB: // IEEE 754 32 bit float, as found on Intel x86 architecture
|
|
Input_Float32_Int32(nativeBuffer, inBufPtr, framePerBuffer, NumInputChannels, index, hostFrameOffset,userFrameOffset, swap);
|
|
break;
|
|
case ASIOSTFloat32MSB: // IEEE 754 32 bit float, as found on Intel x86 architecture
|
|
Input_Float32_Int32(nativeBuffer, inBufPtr, framePerBuffer, NumInputChannels, index, hostFrameOffset,userFrameOffset, !swap);
|
|
break;
|
|
|
|
case ASIOSTInt24LSB: // used for 20 bits as well
|
|
case ASIOSTInt24MSB: // used for 20 bits as well
|
|
|
|
case ASIOSTFloat64LSB: // IEEE 754 64 bit double float, as found on Intel x86 architecture
|
|
case ASIOSTFloat64MSB: // IEEE 754 64 bit double float, as found on Intel x86 architecture
|
|
|
|
// these are used for 32 bit data buffer, with different alignment of the data inside
|
|
// 32 bit PCI bus systems can more easily used with these
|
|
|
|
case ASIOSTInt32LSB16: // 32 bit data with 16 bit alignment
|
|
case ASIOSTInt32LSB18: // 32 bit data with 18 bit alignment
|
|
case ASIOSTInt32LSB20: // 32 bit data with 20 bit alignment
|
|
case ASIOSTInt32LSB24: // 32 bit data with 24 bit alignment
|
|
|
|
|
|
case ASIOSTInt32MSB16: // 32 bit data with 16 bit alignment
|
|
case ASIOSTInt32MSB18: // 32 bit data with 18 bit alignment
|
|
case ASIOSTInt32MSB20: // 32 bit data with 20 bit alignment
|
|
case ASIOSTInt32MSB24: // 32 bit data with 24 bit alignment
|
|
DBUG(("Not yet implemented : please report the problem\n"));
|
|
break;
|
|
|
|
}
|
|
break;
|
|
}
|
|
|
|
case paInt16:
|
|
{
|
|
short *inBufPtr = (short *) inputBuffer;
|
|
|
|
switch (nativeFormat) {
|
|
case ASIOSTInt16LSB:
|
|
Input_Int16_Int16(nativeBuffer, inBufPtr, framePerBuffer , NumInputChannels, index , hostFrameOffset,userFrameOffset, swap);
|
|
break;
|
|
case ASIOSTInt16MSB:
|
|
Input_Int16_Int16(nativeBuffer, inBufPtr, framePerBuffer , NumInputChannels, index , hostFrameOffset,userFrameOffset, !swap);
|
|
break;
|
|
case ASIOSTInt32LSB:
|
|
Input_Int32_Int16(nativeBuffer, inBufPtr, framePerBuffer, NumInputChannels, index, hostFrameOffset,userFrameOffset, flags,swap);
|
|
break;
|
|
case ASIOSTInt32MSB:
|
|
Input_Int32_Int16(nativeBuffer, inBufPtr, framePerBuffer, NumInputChannels, index, hostFrameOffset,userFrameOffset, flags,!swap);
|
|
break;
|
|
case ASIOSTFloat32LSB: // IEEE 754 32 bit float, as found on Intel x86 architecture
|
|
Input_Float32_Int16(nativeBuffer, inBufPtr, framePerBuffer, NumInputChannels, index, hostFrameOffset,userFrameOffset, flags,swap);
|
|
break;
|
|
case ASIOSTFloat32MSB: // IEEE 754 32 bit float, as found on Intel x86 architecture
|
|
Input_Float32_Int16(nativeBuffer, inBufPtr, framePerBuffer, NumInputChannels, index, hostFrameOffset,userFrameOffset, flags,!swap);
|
|
break;
|
|
|
|
case ASIOSTInt24LSB: // used for 20 bits as well
|
|
case ASIOSTInt24MSB: // used for 20 bits as well
|
|
|
|
case ASIOSTFloat64LSB: // IEEE 754 64 bit double float, as found on Intel x86 architecture
|
|
case ASIOSTFloat64MSB: // IEEE 754 64 bit double float, as found on Intel x86 architecture
|
|
|
|
// these are used for 32 bit data buffer, with different alignment of the data inside
|
|
// 32 bit PCI bus systems can more easily used with these
|
|
|
|
case ASIOSTInt32LSB16: // 32 bit data with 16 bit alignment
|
|
case ASIOSTInt32LSB18: // 32 bit data with 18 bit alignment
|
|
case ASIOSTInt32LSB20: // 32 bit data with 20 bit alignment
|
|
case ASIOSTInt32LSB24: // 32 bit data with 24 bit alignment
|
|
|
|
|
|
case ASIOSTInt32MSB16: // 32 bit data with 16 bit alignment
|
|
case ASIOSTInt32MSB18: // 32 bit data with 18 bit alignment
|
|
case ASIOSTInt32MSB20: // 32 bit data with 20 bit alignment
|
|
case ASIOSTInt32MSB24: // 32 bit data with 24 bit alignment
|
|
DBUG(("Not yet implemented : please report the problem\n"));
|
|
break;
|
|
|
|
}
|
|
break;
|
|
}
|
|
|
|
case paInt8:
|
|
{
|
|
/* Convert 16 bit data to 8 bit chars */
|
|
|
|
char *inBufPtr = (char *) inputBuffer;
|
|
|
|
switch (nativeFormat) {
|
|
case ASIOSTInt16LSB:
|
|
Input_Int16_Int8(nativeBuffer, inBufPtr, framePerBuffer, NumInputChannels, index, hostFrameOffset,userFrameOffset,flags,swap);
|
|
break;
|
|
case ASIOSTInt16MSB:
|
|
Input_Int16_Int8(nativeBuffer, inBufPtr, framePerBuffer, NumInputChannels, index, hostFrameOffset,userFrameOffset, flags,!swap);
|
|
break;
|
|
case ASIOSTInt32LSB:
|
|
Input_Int32_Int8(nativeBuffer, inBufPtr, framePerBuffer, NumInputChannels, index, hostFrameOffset,userFrameOffset, flags,swap);
|
|
break;
|
|
case ASIOSTInt32MSB:
|
|
Input_Int32_Int8(nativeBuffer, inBufPtr, framePerBuffer, NumInputChannels, index, hostFrameOffset,userFrameOffset, flags,!swap);
|
|
break;
|
|
case ASIOSTFloat32LSB: // IEEE 754 32 bit float, as found on Intel x86 architecture
|
|
Input_Float32_Int8(nativeBuffer, inBufPtr, framePerBuffer, NumInputChannels, index, hostFrameOffset,userFrameOffset, flags,swap);
|
|
break;
|
|
case ASIOSTFloat32MSB: // IEEE 754 32 bit float, as found on Intel x86 architecture
|
|
Input_Float32_Int8(nativeBuffer, inBufPtr, framePerBuffer, NumInputChannels, index, hostFrameOffset,userFrameOffset, flags,!swap);
|
|
break;
|
|
|
|
case ASIOSTInt24LSB: // used for 20 bits as well
|
|
case ASIOSTInt24MSB: // used for 20 bits as well
|
|
|
|
case ASIOSTFloat64LSB: // IEEE 754 64 bit double float, as found on Intel x86 architecture
|
|
case ASIOSTFloat64MSB: // IEEE 754 64 bit double float, as found on Intel x86 architecture
|
|
|
|
// these are used for 32 bit data buffer, with different alignment of the data inside
|
|
// 32 bit PCI bus systems can more easily used with these
|
|
|
|
case ASIOSTInt32LSB16: // 32 bit data with 16 bit alignment
|
|
case ASIOSTInt32LSB18: // 32 bit data with 18 bit alignment
|
|
case ASIOSTInt32LSB20: // 32 bit data with 20 bit alignment
|
|
case ASIOSTInt32LSB24: // 32 bit data with 24 bit alignment
|
|
|
|
|
|
case ASIOSTInt32MSB16: // 32 bit data with 16 bit alignment
|
|
case ASIOSTInt32MSB18: // 32 bit data with 18 bit alignment
|
|
case ASIOSTInt32MSB20: // 32 bit data with 20 bit alignment
|
|
case ASIOSTInt32MSB24: // 32 bit data with 24 bit alignment
|
|
DBUG(("Not yet implemented : please report the problem\n"));
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
|
|
case paUInt8:
|
|
{
|
|
/* Convert 16 bit data to 8 bit unsigned chars */
|
|
|
|
unsigned char *inBufPtr = (unsigned char *)inputBuffer;
|
|
|
|
switch (nativeFormat) {
|
|
case ASIOSTInt16LSB:
|
|
Input_Int16_IntU8(nativeBuffer, inBufPtr, framePerBuffer, NumInputChannels, index, hostFrameOffset,userFrameOffset, flags,swap);
|
|
break;
|
|
case ASIOSTInt16MSB:
|
|
Input_Int16_IntU8(nativeBuffer, inBufPtr, framePerBuffer, NumInputChannels, index, hostFrameOffset,userFrameOffset, flags,!swap);
|
|
break;
|
|
case ASIOSTInt32LSB:
|
|
Input_Int32_IntU8(nativeBuffer, inBufPtr, framePerBuffer, NumInputChannels, index, hostFrameOffset,userFrameOffset,flags,swap);
|
|
break;
|
|
case ASIOSTInt32MSB:
|
|
Input_Int32_IntU8(nativeBuffer, inBufPtr, framePerBuffer, NumInputChannels, index, hostFrameOffset,userFrameOffset, flags,!swap);
|
|
break;
|
|
case ASIOSTFloat32LSB: // IEEE 754 32 bit float, as found on Intel x86 architecture
|
|
Input_Float32_IntU8(nativeBuffer, inBufPtr, framePerBuffer, NumInputChannels, index, hostFrameOffset,userFrameOffset,flags,swap);
|
|
break;
|
|
case ASIOSTFloat32MSB: // IEEE 754 32 bit float, as found on Intel x86 architecture
|
|
Input_Float32_IntU8(nativeBuffer, inBufPtr, framePerBuffer, NumInputChannels, index, hostFrameOffset,userFrameOffset,flags,!swap);
|
|
break;
|
|
|
|
case ASIOSTInt24LSB: // used for 20 bits as well
|
|
case ASIOSTInt24MSB: // used for 20 bits as well
|
|
|
|
case ASIOSTFloat64LSB: // IEEE 754 64 bit double float, as found on Intel x86 architecture
|
|
case ASIOSTFloat64MSB: // IEEE 754 64 bit double float, as found on Intel x86 architecture
|
|
|
|
// these are used for 32 bit data buffer, with different alignment of the data inside
|
|
// 32 bit PCI bus systems can more easily used with these
|
|
|
|
case ASIOSTInt32LSB16: // 32 bit data with 16 bit alignment
|
|
case ASIOSTInt32LSB18: // 32 bit data with 18 bit alignment
|
|
case ASIOSTInt32LSB20: // 32 bit data with 20 bit alignment
|
|
case ASIOSTInt32LSB24: // 32 bit data with 24 bit alignment
|
|
|
|
|
|
case ASIOSTInt32MSB16: // 32 bit data with 16 bit alignment
|
|
case ASIOSTInt32MSB18: // 32 bit data with 18 bit alignment
|
|
case ASIOSTInt32MSB20: // 32 bit data with 20 bit alignment
|
|
case ASIOSTInt32MSB24: // 32 bit data with 24 bit alignment
|
|
DBUG(("Not yet implemented : please report the problem\n"));
|
|
break;
|
|
|
|
}
|
|
break;
|
|
}
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
//---------------------------------------------------------------------------------------
|
|
static void Pa_ASIO_Convert_Inter_Output(ASIOBufferInfo* nativeBuffer,
|
|
void* outputBuffer,
|
|
long NumInputChannels,
|
|
long NumOuputChannels,
|
|
long framePerBuffer,
|
|
long hostFrameOffset,
|
|
long userFrameOffset,
|
|
ASIOSampleType nativeFormat,
|
|
PaSampleFormat paFormat,
|
|
PaStreamFlags flags,
|
|
long index)
|
|
{
|
|
|
|
if((NumOuputChannels > 0) && (nativeBuffer != NULL))
|
|
{
|
|
/* Convert from PA format to native format */
|
|
|
|
switch(paFormat)
|
|
{
|
|
case paFloat32:
|
|
{
|
|
float *outBufPtr = (float *) outputBuffer;
|
|
|
|
switch (nativeFormat) {
|
|
case ASIOSTInt16LSB:
|
|
Output_Float32_Int16(nativeBuffer, outBufPtr, framePerBuffer, NumInputChannels, NumOuputChannels, index, hostFrameOffset, userFrameOffset, flags, swap);
|
|
break;
|
|
case ASIOSTInt16MSB:
|
|
Output_Float32_Int16(nativeBuffer, outBufPtr, framePerBuffer, NumInputChannels, NumOuputChannels, index, hostFrameOffset, userFrameOffset, flags,!swap);
|
|
break;
|
|
case ASIOSTInt32LSB:
|
|
Output_Float32_Int32(nativeBuffer, outBufPtr, framePerBuffer, NumInputChannels, NumOuputChannels, index, hostFrameOffset, userFrameOffset, flags,swap);
|
|
break;
|
|
case ASIOSTInt32MSB:
|
|
Output_Float32_Int32(nativeBuffer, outBufPtr, framePerBuffer, NumInputChannels, NumOuputChannels, index, hostFrameOffset,userFrameOffset, flags,!swap);
|
|
break;
|
|
case ASIOSTFloat32LSB:
|
|
Output_Float32_Float32(nativeBuffer, outBufPtr, framePerBuffer, NumInputChannels, NumOuputChannels, index, hostFrameOffset,userFrameOffset,flags,swap);
|
|
break;
|
|
case ASIOSTFloat32MSB:
|
|
Output_Float32_Float32(nativeBuffer, outBufPtr, framePerBuffer, NumInputChannels, NumOuputChannels, index, hostFrameOffset,userFrameOffset, flags,!swap);
|
|
break;
|
|
|
|
case ASIOSTInt24LSB: // used for 20 bits as well
|
|
case ASIOSTInt24MSB: // used for 20 bits as well
|
|
|
|
case ASIOSTFloat64LSB: // IEEE 754 64 bit double float, as found on Intel x86 architecture
|
|
case ASIOSTFloat64MSB: // IEEE 754 64 bit double float, as found on Intel x86 architecture
|
|
|
|
// these are used for 32 bit data buffer, with different alignment of the data inside
|
|
// 32 bit PCI bus systems can more easily used with these
|
|
|
|
case ASIOSTInt32LSB16: // 32 bit data with 16 bit alignment
|
|
case ASIOSTInt32LSB18: // 32 bit data with 18 bit alignment
|
|
case ASIOSTInt32LSB20: // 32 bit data with 20 bit alignment
|
|
case ASIOSTInt32LSB24: // 32 bit data with 24 bit alignment
|
|
|
|
|
|
case ASIOSTInt32MSB16: // 32 bit data with 16 bit alignment
|
|
case ASIOSTInt32MSB18: // 32 bit data with 18 bit alignment
|
|
case ASIOSTInt32MSB20: // 32 bit data with 20 bit alignment
|
|
case ASIOSTInt32MSB24: // 32 bit data with 24 bit alignment
|
|
DBUG(("Not yet implemented : please report the problem\n"));
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
|
|
case paInt32:
|
|
{
|
|
long *outBufPtr = (long *) outputBuffer;
|
|
|
|
switch (nativeFormat) {
|
|
case ASIOSTInt16LSB:
|
|
Output_Int32_Int16(nativeBuffer, outBufPtr, framePerBuffer, NumInputChannels, NumOuputChannels, index, hostFrameOffset,userFrameOffset, flags,swap);
|
|
break;
|
|
case ASIOSTInt16MSB:
|
|
Output_Int32_Int16(nativeBuffer, outBufPtr, framePerBuffer, NumInputChannels, NumOuputChannels, index, hostFrameOffset,userFrameOffset, flags,!swap);
|
|
break;
|
|
case ASIOSTInt32LSB:
|
|
Output_Int32_Int32(nativeBuffer, outBufPtr, framePerBuffer, NumInputChannels, NumOuputChannels, index, hostFrameOffset,userFrameOffset, flags,swap);
|
|
break;
|
|
case ASIOSTInt32MSB:
|
|
Output_Int32_Int32(nativeBuffer, outBufPtr, framePerBuffer, NumInputChannels, NumOuputChannels, index, hostFrameOffset,userFrameOffset, flags,!swap);
|
|
break;
|
|
case ASIOSTFloat32LSB:
|
|
Output_Int32_Float32(nativeBuffer, outBufPtr, framePerBuffer, NumInputChannels, NumOuputChannels, index, hostFrameOffset,userFrameOffset, flags,swap);
|
|
break;
|
|
case ASIOSTFloat32MSB:
|
|
Output_Int32_Float32(nativeBuffer, outBufPtr, framePerBuffer, NumInputChannels, NumOuputChannels, index, hostFrameOffset,userFrameOffset, flags,!swap);
|
|
break;
|
|
|
|
case ASIOSTInt24LSB: // used for 20 bits as well
|
|
case ASIOSTInt24MSB: // used for 20 bits as well
|
|
|
|
case ASIOSTFloat64LSB: // IEEE 754 64 bit double float, as found on Intel x86 architecture
|
|
case ASIOSTFloat64MSB: // IEEE 754 64 bit double float, as found on Intel x86 architecture
|
|
|
|
// these are used for 32 bit data buffer, with different alignment of the data inside
|
|
// 32 bit PCI bus systems can more easily used with these
|
|
|
|
case ASIOSTInt32LSB16: // 32 bit data with 16 bit alignment
|
|
case ASIOSTInt32LSB18: // 32 bit data with 18 bit alignment
|
|
case ASIOSTInt32LSB20: // 32 bit data with 20 bit alignment
|
|
case ASIOSTInt32LSB24: // 32 bit data with 24 bit alignment
|
|
|
|
|
|
case ASIOSTInt32MSB16: // 32 bit data with 16 bit alignment
|
|
case ASIOSTInt32MSB18: // 32 bit data with 18 bit alignment
|
|
case ASIOSTInt32MSB20: // 32 bit data with 20 bit alignment
|
|
case ASIOSTInt32MSB24: // 32 bit data with 24 bit alignment
|
|
DBUG(("Not yet implemented : please report the problem\n"));
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
|
|
case paInt16:
|
|
{
|
|
short *outBufPtr = (short *) outputBuffer;
|
|
|
|
switch (nativeFormat) {
|
|
case ASIOSTInt16LSB:
|
|
Output_Int16_Int16(nativeBuffer, outBufPtr, framePerBuffer, NumInputChannels, NumOuputChannels, index, hostFrameOffset,userFrameOffset, swap);
|
|
break;
|
|
case ASIOSTInt16MSB:
|
|
Output_Int16_Int16(nativeBuffer, outBufPtr, framePerBuffer, NumInputChannels, NumOuputChannels, index, hostFrameOffset,userFrameOffset, !swap);
|
|
break;
|
|
case ASIOSTInt32LSB:
|
|
Output_Int16_Int32(nativeBuffer, outBufPtr, framePerBuffer, NumInputChannels, NumOuputChannels, index, hostFrameOffset,userFrameOffset, swap);
|
|
break;
|
|
case ASIOSTInt32MSB:
|
|
Output_Int16_Int32(nativeBuffer, outBufPtr, framePerBuffer, NumInputChannels, NumOuputChannels, index, hostFrameOffset,userFrameOffset, !swap);
|
|
break;
|
|
case ASIOSTFloat32LSB:
|
|
Output_Int16_Float32(nativeBuffer, outBufPtr, framePerBuffer, NumInputChannels, NumOuputChannels, index, hostFrameOffset,userFrameOffset, swap);
|
|
break;
|
|
case ASIOSTFloat32MSB:
|
|
Output_Int16_Float32(nativeBuffer, outBufPtr, framePerBuffer, NumInputChannels, NumOuputChannels, index, hostFrameOffset,userFrameOffset, !swap);
|
|
break;
|
|
|
|
case ASIOSTInt24LSB: // used for 20 bits as well
|
|
case ASIOSTInt24MSB: // used for 20 bits as well
|
|
|
|
case ASIOSTFloat64LSB: // IEEE 754 64 bit double float, as found on Intel x86 architecture
|
|
case ASIOSTFloat64MSB: // IEEE 754 64 bit double float, as found on Intel x86 architecture
|
|
|
|
// these are used for 32 bit data buffer, with different alignment of the data inside
|
|
// 32 bit PCI bus systems can more easily used with these
|
|
|
|
case ASIOSTInt32LSB16: // 32 bit data with 16 bit alignment
|
|
case ASIOSTInt32LSB18: // 32 bit data with 18 bit alignment
|
|
case ASIOSTInt32LSB20: // 32 bit data with 20 bit alignment
|
|
case ASIOSTInt32LSB24: // 32 bit data with 24 bit alignment
|
|
|
|
|
|
case ASIOSTInt32MSB16: // 32 bit data with 16 bit alignment
|
|
case ASIOSTInt32MSB18: // 32 bit data with 18 bit alignment
|
|
case ASIOSTInt32MSB20: // 32 bit data with 20 bit alignment
|
|
case ASIOSTInt32MSB24: // 32 bit data with 24 bit alignment
|
|
DBUG(("Not yet implemented : please report the problem\n"));
|
|
break;
|
|
|
|
}
|
|
break;
|
|
}
|
|
|
|
|
|
case paInt8:
|
|
{
|
|
char *outBufPtr = (char *) outputBuffer;
|
|
|
|
switch (nativeFormat) {
|
|
case ASIOSTInt16LSB:
|
|
Output_Int8_Int16(nativeBuffer, outBufPtr, framePerBuffer, NumInputChannels, NumOuputChannels, index, hostFrameOffset,userFrameOffset, swap);
|
|
break;
|
|
case ASIOSTInt16MSB:
|
|
Output_Int8_Int16(nativeBuffer, outBufPtr, framePerBuffer, NumInputChannels, NumOuputChannels, index, hostFrameOffset,userFrameOffset, !swap);
|
|
break;
|
|
case ASIOSTInt32LSB:
|
|
Output_Int8_Int32(nativeBuffer, outBufPtr, framePerBuffer, NumInputChannels, NumOuputChannels, index, hostFrameOffset,userFrameOffset, swap);
|
|
break;
|
|
case ASIOSTInt32MSB:
|
|
Output_Int8_Int32(nativeBuffer, outBufPtr, framePerBuffer, NumInputChannels, NumOuputChannels, index, hostFrameOffset,userFrameOffset, !swap);
|
|
break;
|
|
case ASIOSTFloat32LSB:
|
|
Output_Int8_Float32(nativeBuffer, outBufPtr, framePerBuffer, NumInputChannels, NumOuputChannels, index, hostFrameOffset,userFrameOffset, swap);
|
|
break;
|
|
case ASIOSTFloat32MSB:
|
|
Output_Int8_Float32(nativeBuffer, outBufPtr, framePerBuffer, NumInputChannels, NumOuputChannels, index, hostFrameOffset,userFrameOffset, !swap);
|
|
break;
|
|
|
|
case ASIOSTInt24LSB: // used for 20 bits as well
|
|
case ASIOSTInt24MSB: // used for 20 bits as well
|
|
|
|
case ASIOSTFloat64LSB: // IEEE 754 64 bit double float, as found on Intel x86 architecture
|
|
case ASIOSTFloat64MSB: // IEEE 754 64 bit double float, as found on Intel x86 architecture
|
|
|
|
// these are used for 32 bit data buffer, with different alignment of the data inside
|
|
// 32 bit PCI bus systems can more easily used with these
|
|
|
|
case ASIOSTInt32LSB16: // 32 bit data with 16 bit alignment
|
|
case ASIOSTInt32LSB18: // 32 bit data with 18 bit alignment
|
|
case ASIOSTInt32LSB20: // 32 bit data with 20 bit alignment
|
|
case ASIOSTInt32LSB24: // 32 bit data with 24 bit alignment
|
|
|
|
|
|
case ASIOSTInt32MSB16: // 32 bit data with 16 bit alignment
|
|
case ASIOSTInt32MSB18: // 32 bit data with 18 bit alignment
|
|
case ASIOSTInt32MSB20: // 32 bit data with 20 bit alignment
|
|
case ASIOSTInt32MSB24: // 32 bit data with 24 bit alignment
|
|
DBUG(("Not yet implemented : please report the problem\n"));
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
|
|
case paUInt8:
|
|
{
|
|
unsigned char *outBufPtr = (unsigned char *) outputBuffer;
|
|
|
|
switch (nativeFormat) {
|
|
case ASIOSTInt16LSB:
|
|
Output_IntU8_Int16(nativeBuffer, outBufPtr, framePerBuffer, NumInputChannels, NumOuputChannels, index, hostFrameOffset,userFrameOffset, swap);
|
|
break;
|
|
case ASIOSTInt16MSB:
|
|
Output_IntU8_Int16(nativeBuffer, outBufPtr, framePerBuffer, NumInputChannels, NumOuputChannels, index, hostFrameOffset,userFrameOffset, !swap);
|
|
break;
|
|
case ASIOSTInt32LSB:
|
|
Output_IntU8_Int32(nativeBuffer, outBufPtr, framePerBuffer, NumInputChannels, NumOuputChannels, index, hostFrameOffset,userFrameOffset, swap);
|
|
break;
|
|
case ASIOSTInt32MSB:
|
|
Output_IntU8_Int32(nativeBuffer, outBufPtr, framePerBuffer, NumInputChannels, NumOuputChannels, index, hostFrameOffset,userFrameOffset, !swap);
|
|
break;
|
|
case ASIOSTFloat32LSB:
|
|
Output_IntU8_Float32(nativeBuffer, outBufPtr, framePerBuffer, NumInputChannels, NumOuputChannels, index, hostFrameOffset,userFrameOffset, swap);
|
|
break;
|
|
case ASIOSTFloat32MSB:
|
|
Output_IntU8_Float32(nativeBuffer, outBufPtr, framePerBuffer, NumInputChannels, NumOuputChannels, index, hostFrameOffset,userFrameOffset, !swap);
|
|
break;
|
|
|
|
case ASIOSTInt24LSB: // used for 20 bits as well
|
|
case ASIOSTInt24MSB: // used for 20 bits as well
|
|
|
|
case ASIOSTFloat64LSB: // IEEE 754 64 bit double float, as found on Intel x86 architecture
|
|
case ASIOSTFloat64MSB: // IEEE 754 64 bit double float, as found on Intel x86 architecture
|
|
|
|
// these are used for 32 bit data buffer, with different alignment of the data inside
|
|
// 32 bit PCI bus systems can more easily used with these
|
|
|
|
case ASIOSTInt32LSB16: // 32 bit data with 16 bit alignment
|
|
case ASIOSTInt32LSB18: // 32 bit data with 18 bit alignment
|
|
case ASIOSTInt32LSB20: // 32 bit data with 20 bit alignment
|
|
case ASIOSTInt32LSB24: // 32 bit data with 24 bit alignment
|
|
|
|
|
|
case ASIOSTInt32MSB16: // 32 bit data with 16 bit alignment
|
|
case ASIOSTInt32MSB18: // 32 bit data with 18 bit alignment
|
|
case ASIOSTInt32MSB20: // 32 bit data with 20 bit alignment
|
|
case ASIOSTInt32MSB24: // 32 bit data with 24 bit alignment
|
|
DBUG(("Not yet implemented : please report the problem\n"));
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Load a ASIO driver corresponding to the required device */
|
|
static PaError Pa_ASIO_loadDevice (long device)
|
|
{
|
|
PaDeviceInfo * dev = &(sDevices[device].pad_Info);
|
|
|
|
if (!Pa_ASIO_loadAsioDriver((char *) dev->name)) return paHostError;
|
|
if (ASIOInit(&asioDriverInfo.pahsc_driverInfo) != ASE_OK) return paHostError;
|
|
if (ASIOGetChannels(&asioDriverInfo.pahsc_NumInputChannels, &asioDriverInfo.pahsc_NumOutputChannels) != ASE_OK) return paHostError;
|
|
if (ASIOGetBufferSize(&asioDriverInfo.pahsc_minSize, &asioDriverInfo.pahsc_maxSize, &asioDriverInfo.pahsc_preferredSize, &asioDriverInfo.pahsc_granularity) != ASE_OK) return paHostError;
|
|
|
|
if(ASIOOutputReady() == ASE_OK)
|
|
asioDriverInfo.pahsc_postOutput = true;
|
|
else
|
|
asioDriverInfo.pahsc_postOutput = false;
|
|
|
|
return paNoError;
|
|
}
|
|
|
|
//---------------------------------------------------
|
|
static int GetHighestBitPosition (unsigned long n)
|
|
{
|
|
int pos = -1;
|
|
while( n != 0 )
|
|
{
|
|
pos++;
|
|
n = n >> 1;
|
|
}
|
|
return pos;
|
|
}
|
|
|
|
//------------------------------------------------------------------------------------------
|
|
static int GetFirstMultiple(long min, long val ){ return ((min + val - 1) / val) * val; }
|
|
|
|
//------------------------------------------------------------------------------------------
|
|
static int GetFirstPossibleDivisor(long max, long val )
|
|
{
|
|
for (int i = 2; i < 20; i++) {if (((val%i) == 0) && ((val/i) <= max)) return (val/i); }
|
|
return val;
|
|
}
|
|
|
|
//------------------------------------------------------------------------
|
|
static int IsPowerOfTwo( unsigned long n ) { return ((n & (n-1)) == 0); }
|
|
|
|
|
|
/*******************************************************************
|
|
* Determine size of native ASIO audio buffer size
|
|
* Input parameters : FramesPerUserBuffer, NumUserBuffers
|
|
* Output values : FramesPerHostBuffer, OutputBufferOffset or InputtBufferOffset
|
|
*/
|
|
|
|
static PaError PaHost_CalcNumHostBuffers( internalPortAudioStream *past )
|
|
{
|
|
PaHostSoundControl *pahsc = (PaHostSoundControl *) past->past_DeviceData;
|
|
long requestedBufferSize;
|
|
long firstMultiple, firstDivisor;
|
|
|
|
// Compute requestedBufferSize
|
|
if( past->past_NumUserBuffers < 1 ){
|
|
requestedBufferSize = past->past_FramesPerUserBuffer;
|
|
}else{
|
|
requestedBufferSize = past->past_NumUserBuffers * past->past_FramesPerUserBuffer;
|
|
}
|
|
|
|
// Adjust FramesPerHostBuffer using requestedBufferSize, ASIO minSize and maxSize,
|
|
if (requestedBufferSize < asioDriverInfo.pahsc_minSize){
|
|
|
|
firstMultiple = GetFirstMultiple(asioDriverInfo.pahsc_minSize, requestedBufferSize);
|
|
|
|
if (firstMultiple <= asioDriverInfo.pahsc_maxSize)
|
|
asioDriverInfo.past_FramesPerHostBuffer = firstMultiple;
|
|
else
|
|
asioDriverInfo.past_FramesPerHostBuffer = asioDriverInfo.pahsc_minSize;
|
|
|
|
}else if (requestedBufferSize > asioDriverInfo.pahsc_maxSize){
|
|
|
|
firstDivisor = GetFirstPossibleDivisor(asioDriverInfo.pahsc_maxSize, requestedBufferSize);
|
|
|
|
if ((firstDivisor >= asioDriverInfo.pahsc_minSize) && (firstDivisor <= asioDriverInfo.pahsc_maxSize))
|
|
asioDriverInfo.past_FramesPerHostBuffer = firstDivisor;
|
|
else
|
|
asioDriverInfo.past_FramesPerHostBuffer = asioDriverInfo.pahsc_maxSize;
|
|
}else{
|
|
asioDriverInfo.past_FramesPerHostBuffer = requestedBufferSize;
|
|
}
|
|
|
|
// If ASIO buffer size needs to be a power of two
|
|
if( asioDriverInfo.pahsc_granularity < 0 ){
|
|
// Needs to be a power of two.
|
|
|
|
if( !IsPowerOfTwo( asioDriverInfo.past_FramesPerHostBuffer ) )
|
|
{
|
|
int highestBit = GetHighestBitPosition(asioDriverInfo.past_FramesPerHostBuffer);
|
|
asioDriverInfo.past_FramesPerHostBuffer = 1 << (highestBit + 1);
|
|
}
|
|
}
|
|
|
|
DBUG(("----------------------------------\n"));
|
|
DBUG(("PortAudio : minSize = %ld \n",asioDriverInfo.pahsc_minSize));
|
|
DBUG(("PortAudio : preferredSize = %ld \n",asioDriverInfo.pahsc_preferredSize));
|
|
DBUG(("PortAudio : maxSize = %ld \n",asioDriverInfo.pahsc_maxSize));
|
|
DBUG(("PortAudio : granularity = %ld \n",asioDriverInfo.pahsc_granularity));
|
|
DBUG(("PortAudio : User buffer size = %d\n", asioDriverInfo.past->past_FramesPerUserBuffer ));
|
|
DBUG(("PortAudio : ASIO buffer size = %d\n", asioDriverInfo.past_FramesPerHostBuffer ));
|
|
|
|
if (asioDriverInfo.past_FramesPerHostBuffer > past->past_FramesPerUserBuffer){
|
|
|
|
// Computes the MINIMUM value of null frames shift for the output buffer alignement
|
|
asioDriverInfo.pahsc_OutputBufferOffset = Pa_ASIO_CalcFrameShift (asioDriverInfo.past_FramesPerHostBuffer,past->past_FramesPerUserBuffer);
|
|
asioDriverInfo.pahsc_InputBufferOffset = 0;
|
|
DBUG(("PortAudio : Minimum BufferOffset for Output = %d\n", asioDriverInfo.pahsc_OutputBufferOffset));
|
|
}else{
|
|
|
|
//Computes the MINIMUM value of null frames shift for the input buffer alignement
|
|
asioDriverInfo.pahsc_InputBufferOffset = Pa_ASIO_CalcFrameShift (asioDriverInfo.past_FramesPerHostBuffer,past->past_FramesPerUserBuffer);
|
|
asioDriverInfo.pahsc_OutputBufferOffset = 0;
|
|
DBUG(("PortAudio : Minimum BufferOffset for Input = %d\n", asioDriverInfo.pahsc_InputBufferOffset));
|
|
}
|
|
|
|
return paNoError;
|
|
}
|
|
|
|
|
|
/***********************************************************************/
|
|
int Pa_CountDevices()
|
|
{
|
|
PaError err ;
|
|
|
|
if( sNumDevices <= 0 )
|
|
{
|
|
/* Force loading of ASIO drivers */
|
|
err = Pa_ASIO_QueryDeviceInfo(sDevices);
|
|
if( err != paNoError ) goto error;
|
|
}
|
|
|
|
return sNumDevices;
|
|
|
|
error:
|
|
PaHost_Term();
|
|
DBUG(("Pa_CountDevices: returns %d\n", err ));
|
|
return err;
|
|
}
|
|
|
|
/***********************************************************************/
|
|
PaError PaHost_Init( void )
|
|
{
|
|
/* Have we already initialized the device info? */
|
|
PaError err = (PaError) Pa_CountDevices();
|
|
return ( err < 0 ) ? err : paNoError;
|
|
}
|
|
|
|
/***********************************************************************/
|
|
PaError PaHost_Term( void )
|
|
{
|
|
int i;
|
|
PaDeviceInfo *dev;
|
|
double *rates;
|
|
PaError result = paNoError;
|
|
|
|
if (sNumDevices > 0) {
|
|
|
|
/* Free allocated sample rate arrays and names*/
|
|
for( i=0; i<sNumDevices; i++ ){
|
|
dev = &sDevices[i].pad_Info;
|
|
rates = (double *) dev->sampleRates;
|
|
if ((rates != NULL)) PaHost_FreeFastMemory(rates, MAX_NUMSAMPLINGRATES * sizeof(double));
|
|
dev->sampleRates = NULL;
|
|
if(dev->name != NULL) PaHost_FreeFastMemory((void *) dev->name, 32);
|
|
dev->name = NULL;
|
|
|
|
}
|
|
|
|
sNumDevices = 0;
|
|
|
|
/* Dispose : if not done by Pa_CloseStream */
|
|
if(ASIODisposeBuffers() != ASE_OK) result = paHostError;
|
|
if(ASIOExit() != ASE_OK) result = paHostError;
|
|
|
|
/* remove the loaded ASIO driver */
|
|
asioDrivers->removeCurrentDriver();
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
/***********************************************************************/
|
|
PaError PaHost_OpenStream( internalPortAudioStream *past )
|
|
{
|
|
PaError result = paNoError;
|
|
ASIOError err;
|
|
int32 device;
|
|
|
|
/* Check if a stream already runs */
|
|
if (asioDriverInfo.past != NULL) return paHostError;
|
|
|
|
/* Check the device number */
|
|
if ((past->past_InputDeviceID != paNoDevice)
|
|
&&(past->past_OutputDeviceID != paNoDevice)
|
|
&&(past->past_InputDeviceID != past->past_OutputDeviceID))
|
|
{
|
|
return paInvalidDeviceId;
|
|
}
|
|
|
|
/* Allocation */
|
|
memset(&asioDriverInfo, 0, sizeof(PaHostSoundControl));
|
|
past->past_DeviceData = (void*) &asioDriverInfo;
|
|
|
|
|
|
/* FIXME */
|
|
asioDriverInfo.past = past;
|
|
|
|
/* load the ASIO device */
|
|
device = (past->past_InputDeviceID < 0) ? past->past_OutputDeviceID : past->past_InputDeviceID;
|
|
result = Pa_ASIO_loadDevice(device);
|
|
if (result != paNoError) goto error;
|
|
|
|
/* Check ASIO parameters and input parameters */
|
|
if ((past->past_NumInputChannels > asioDriverInfo.pahsc_NumInputChannels)
|
|
|| (past->past_NumOutputChannels > asioDriverInfo.pahsc_NumOutputChannels)) {
|
|
result = paInvalidChannelCount;
|
|
goto error;
|
|
}
|
|
|
|
/* Set sample rate */
|
|
if (ASIOSetSampleRate(past->past_SampleRate) != ASE_OK) {
|
|
result = paInvalidSampleRate;
|
|
goto error;
|
|
}
|
|
|
|
/* if OK calc buffer size */
|
|
result = PaHost_CalcNumHostBuffers( past );
|
|
if (result != paNoError) goto error;
|
|
|
|
|
|
/*
|
|
Allocating input and output buffers number for the real past_NumInputChannels and past_NumOutputChannels
|
|
optimize the data transfer.
|
|
*/
|
|
|
|
asioDriverInfo.pahsc_NumInputChannels = past->past_NumInputChannels;
|
|
asioDriverInfo.pahsc_NumOutputChannels = past->past_NumOutputChannels;
|
|
|
|
/* Allocate ASIO buffers and callback*/
|
|
err = Pa_ASIO_CreateBuffers(&asioDriverInfo,
|
|
asioDriverInfo.pahsc_NumInputChannels,
|
|
asioDriverInfo.pahsc_NumOutputChannels,
|
|
asioDriverInfo.past_FramesPerHostBuffer);
|
|
|
|
if (err == ASE_OK)
|
|
return paNoError;
|
|
else if (err == ASE_NoMemory)
|
|
result = paInsufficientMemory;
|
|
else if (err == ASE_InvalidParameter)
|
|
result = paInvalidChannelCount;
|
|
else if (err == ASE_InvalidMode)
|
|
result = paBufferTooBig;
|
|
else
|
|
result = paHostError;
|
|
|
|
error:
|
|
ASIOExit();
|
|
return result;
|
|
|
|
}
|
|
|
|
/***********************************************************************/
|
|
PaError PaHost_CloseStream( internalPortAudioStream *past )
|
|
{
|
|
PaHostSoundControl *pahsc;
|
|
PaError result = paNoError;
|
|
|
|
if( past == NULL ) return paBadStreamPtr;
|
|
pahsc = (PaHostSoundControl *) past->past_DeviceData;
|
|
if( pahsc == NULL ) return paNoError;
|
|
|
|
#if PA_TRACE_START_STOP
|
|
AddTraceMessage( "PaHost_CloseStream: pahsc_HWaveOut ", (int) pahsc->pahsc_HWaveOut );
|
|
#endif
|
|
|
|
/* Dispose */
|
|
if(ASIODisposeBuffers() != ASE_OK) result = paHostError;
|
|
if(ASIOExit() != ASE_OK) result = paHostError;
|
|
|
|
/* Free data and device for output. */
|
|
past->past_DeviceData = NULL;
|
|
asioDriverInfo.past = NULL;
|
|
|
|
return result;
|
|
}
|
|
|
|
/***********************************************************************/
|
|
PaError PaHost_StartOutput( internalPortAudioStream *past )
|
|
{
|
|
/* Clear the index 0 host output buffer */
|
|
Pa_ASIO_Clear_Output(asioDriverInfo.bufferInfos,
|
|
asioDriverInfo.pahsc_channelInfos[0].type,
|
|
asioDriverInfo.pahsc_NumInputChannels,
|
|
asioDriverInfo.pahsc_NumOutputChannels,
|
|
0,
|
|
0,
|
|
asioDriverInfo.past_FramesPerHostBuffer);
|
|
|
|
/* Clear the index 1 host output buffer */
|
|
Pa_ASIO_Clear_Output(asioDriverInfo.bufferInfos,
|
|
asioDriverInfo.pahsc_channelInfos[0].type,
|
|
asioDriverInfo.pahsc_NumInputChannels,
|
|
asioDriverInfo.pahsc_NumOutputChannels,
|
|
1,
|
|
0,
|
|
asioDriverInfo.past_FramesPerHostBuffer);
|
|
|
|
Pa_ASIO_Clear_User_Buffers();
|
|
|
|
Pa_ASIO_Adaptor_Init();
|
|
|
|
return paNoError;
|
|
}
|
|
|
|
/***********************************************************************/
|
|
PaError PaHost_StopOutput( internalPortAudioStream *past, int abort )
|
|
{
|
|
/* Nothing to do ?? */
|
|
return paNoError;
|
|
}
|
|
|
|
/***********************************************************************/
|
|
PaError PaHost_StartInput( internalPortAudioStream *past )
|
|
{
|
|
/* Nothing to do ?? */
|
|
return paNoError;
|
|
}
|
|
|
|
/***********************************************************************/
|
|
PaError PaHost_StopInput( internalPortAudioStream *past, int abort )
|
|
{
|
|
/* Nothing to do */
|
|
return paNoError;
|
|
}
|
|
|
|
/***********************************************************************/
|
|
PaError PaHost_StartEngine( internalPortAudioStream *past )
|
|
{
|
|
// TO DO : count of samples
|
|
past->past_IsActive = 1;
|
|
return (ASIOStart() == ASE_OK) ? paNoError : paHostError;
|
|
}
|
|
|
|
/***********************************************************************/
|
|
PaError PaHost_StopEngine( internalPortAudioStream *past, int abort )
|
|
{
|
|
// TO DO : count of samples
|
|
past->past_IsActive = 0;
|
|
return (ASIOStop() == ASE_OK) ? paNoError : paHostError;
|
|
}
|
|
|
|
/***********************************************************************/
|
|
// TO BE CHECKED
|
|
PaError PaHost_StreamActive( internalPortAudioStream *past )
|
|
{
|
|
PaHostSoundControl *pahsc;
|
|
if( past == NULL ) return paBadStreamPtr;
|
|
pahsc = (PaHostSoundControl *) past->past_DeviceData;
|
|
if( pahsc == NULL ) return paInternalError;
|
|
return (PaError) past->past_IsActive;
|
|
}
|
|
|
|
/*************************************************************************/
|
|
PaTimestamp Pa_StreamTime( PortAudioStream *stream )
|
|
{
|
|
PaHostSoundControl *pahsc;
|
|
internalPortAudioStream *past = (internalPortAudioStream *) stream;
|
|
if( past == NULL ) return paBadStreamPtr;
|
|
pahsc = (PaHostSoundControl *) past->past_DeviceData;
|
|
return pahsc->pahsc_NumFramesDone;
|
|
}
|
|
|
|
/*************************************************************************
|
|
* Allocate memory that can be accessed in real-time.
|
|
* This may need to be held in physical memory so that it is not
|
|
* paged to virtual memory.
|
|
* This call MUST be balanced with a call to PaHost_FreeFastMemory().
|
|
*/
|
|
void *PaHost_AllocateFastMemory( long numBytes )
|
|
{
|
|
#if MAC
|
|
void *addr = NewPtrClear( numBytes );
|
|
if( (addr == NULL) || (MemError () != 0) ) return NULL;
|
|
|
|
#if (CARBON_COMPATIBLE == 0)
|
|
if( HoldMemory( addr, numBytes ) != noErr )
|
|
{
|
|
DisposePtr( (Ptr) addr );
|
|
return NULL;
|
|
}
|
|
#endif
|
|
return addr;
|
|
#elif WINDOWS
|
|
void *addr = malloc( numBytes ); /* FIXME - do we need physical memory? */
|
|
if( addr != NULL ) memset( addr, 0, numBytes );
|
|
return addr;
|
|
#endif
|
|
}
|
|
|
|
/*************************************************************************
|
|
* Free memory that could be accessed in real-time.
|
|
* This call MUST be balanced with a call to PaHost_AllocateFastMemory().
|
|
*/
|
|
void PaHost_FreeFastMemory( void *addr, long numBytes )
|
|
{
|
|
#if MAC
|
|
if( addr == NULL ) return;
|
|
#if CARBON_COMPATIBLE
|
|
(void) numBytes;
|
|
#else
|
|
UnholdMemory( addr, numBytes );
|
|
#endif
|
|
DisposePtr( (Ptr) addr );
|
|
#elif WINDOWS
|
|
if( addr != NULL ) free( addr );
|
|
#endif
|
|
}
|
|
|
|
|
|
/*************************************************************************/
|
|
void Pa_Sleep( long msec )
|
|
{
|
|
#if MAC
|
|
int32 sleepTime, endTime;
|
|
/* Convert to ticks. Round up so we sleep a MINIMUM of msec time. */
|
|
sleepTime = ((msec * 60) + 999) / 1000;
|
|
if( sleepTime < 1 ) sleepTime = 1;
|
|
endTime = TickCount() + sleepTime;
|
|
do{
|
|
DBUGX(("Sleep for %d ticks.\n", sleepTime ));
|
|
WaitNextEvent( 0, NULL, sleepTime, NULL ); /* Use this just to sleep without getting events. */
|
|
sleepTime = endTime - TickCount();
|
|
} while( sleepTime > 0 );
|
|
#elif WINDOWS
|
|
Sleep( msec );
|
|
#endif
|
|
}
|
|
|
|
/*************************************************************************/
|
|
const PaDeviceInfo* Pa_GetDeviceInfo( PaDeviceID id )
|
|
{
|
|
if( (id < 0) || ( id >= Pa_CountDevices()) ) return NULL;
|
|
return &sDevices[id].pad_Info;
|
|
}
|
|
|
|
/*************************************************************************/
|
|
PaDeviceID Pa_GetDefaultInputDeviceID( void )
|
|
{
|
|
return sDefaultInputDeviceID;
|
|
}
|
|
|
|
/*************************************************************************/
|
|
PaDeviceID Pa_GetDefaultOutputDeviceID( void )
|
|
{
|
|
return sDefaultOutputDeviceID;
|
|
}
|
|
|
|
/*************************************************************************/
|
|
int Pa_GetMinNumBuffers( int framesPerUserBuffer, double sampleRate )
|
|
{
|
|
// TO BE IMPLEMENTED : using the ASIOGetLatency call??
|
|
return 2;
|
|
}
|
|
|
|
/*************************************************************************/
|
|
int32 Pa_GetHostError( void )
|
|
{
|
|
int32 err = sPaHostError;
|
|
sPaHostError = 0;
|
|
return err;
|
|
}
|
|
|
|
|
|
#ifdef MAC
|
|
|
|
/**************************************************************************/
|
|
static void Pa_StartUsageCalculation( internalPortAudioStream *past )
|
|
{
|
|
PaHostSoundControl *pahsc = (PaHostSoundControl *) past->past_DeviceData;
|
|
UnsignedWide widePad;
|
|
if( pahsc == NULL ) return;
|
|
/* Query system timer for usage analysis and to prevent overuse of CPU. */
|
|
Microseconds( &widePad );
|
|
pahsc->pahsc_EntryCount = UnsignedWideToUInt64( widePad );
|
|
}
|
|
/**************************************************************************/
|
|
static void Pa_EndUsageCalculation( internalPortAudioStream *past )
|
|
{
|
|
UnsignedWide widePad;
|
|
UInt64 CurrentCount;
|
|
long InsideCount;
|
|
long TotalCount;
|
|
PaHostSoundControl *pahsc = (PaHostSoundControl *) past->past_DeviceData;
|
|
if( pahsc == NULL ) return;
|
|
/* Measure CPU utilization during this callback. Note that this calculation
|
|
** assumes that we had the processor the whole time.
|
|
*/
|
|
#define LOWPASS_COEFFICIENT_0 (0.9)
|
|
#define LOWPASS_COEFFICIENT_1 (0.99999 - LOWPASS_COEFFICIENT_0)
|
|
Microseconds( &widePad );
|
|
CurrentCount = UnsignedWideToUInt64( widePad );
|
|
if( past->past_IfLastExitValid )
|
|
{
|
|
InsideCount = (long) U64Subtract(CurrentCount, pahsc->pahsc_EntryCount);
|
|
TotalCount = (long) U64Subtract(CurrentCount, pahsc->pahsc_LastExitCount);
|
|
/* Low pass filter the result because sometimes we get called several times in a row.
|
|
* That can cause the TotalCount to be very low which can cause the usage to appear
|
|
* unnaturally high. So we must filter numerator and denominator separately!!!
|
|
*/
|
|
past->past_AverageInsideCount = (( LOWPASS_COEFFICIENT_0 * past->past_AverageInsideCount) +
|
|
(LOWPASS_COEFFICIENT_1 * InsideCount));
|
|
past->past_AverageTotalCount = (( LOWPASS_COEFFICIENT_0 * past->past_AverageTotalCount) +
|
|
(LOWPASS_COEFFICIENT_1 * TotalCount));
|
|
past->past_Usage = past->past_AverageInsideCount / past->past_AverageTotalCount;
|
|
}
|
|
pahsc->pahsc_LastExitCount = CurrentCount;
|
|
past->past_IfLastExitValid = 1;
|
|
}
|
|
|
|
#elif WINDOWS
|
|
|
|
/********************************* BEGIN CPU UTILIZATION MEASUREMENT ****/
|
|
static void Pa_StartUsageCalculation( internalPortAudioStream *past )
|
|
{
|
|
PaHostSoundControl *pahsc = (PaHostSoundControl *) past->past_DeviceData;
|
|
if( pahsc == NULL ) return;
|
|
/* Query system timer for usage analysis and to prevent overuse of CPU. */
|
|
QueryPerformanceCounter( &pahsc->pahsc_EntryCount );
|
|
}
|
|
|
|
static void Pa_EndUsageCalculation( internalPortAudioStream *past )
|
|
{
|
|
LARGE_INTEGER CurrentCount = { 0, 0 };
|
|
LONGLONG InsideCount;
|
|
LONGLONG TotalCount;
|
|
/*
|
|
** Measure CPU utilization during this callback. Note that this calculation
|
|
** assumes that we had the processor the whole time.
|
|
*/
|
|
#define LOWPASS_COEFFICIENT_0 (0.9)
|
|
#define LOWPASS_COEFFICIENT_1 (0.99999 - LOWPASS_COEFFICIENT_0)
|
|
|
|
PaHostSoundControl *pahsc = (PaHostSoundControl *) past->past_DeviceData;
|
|
if( pahsc == NULL ) return;
|
|
|
|
if( QueryPerformanceCounter( &CurrentCount ) )
|
|
{
|
|
if( past->past_IfLastExitValid )
|
|
{
|
|
InsideCount = CurrentCount.QuadPart - pahsc->pahsc_EntryCount.QuadPart;
|
|
TotalCount = CurrentCount.QuadPart - pahsc->pahsc_LastExitCount.QuadPart;
|
|
/* Low pass filter the result because sometimes we get called several times in a row.
|
|
* That can cause the TotalCount to be very low which can cause the usage to appear
|
|
* unnaturally high. So we must filter numerator and denominator separately!!!
|
|
*/
|
|
past->past_AverageInsideCount = (( LOWPASS_COEFFICIENT_0 * past->past_AverageInsideCount) +
|
|
(LOWPASS_COEFFICIENT_1 * InsideCount));
|
|
past->past_AverageTotalCount = (( LOWPASS_COEFFICIENT_0 * past->past_AverageTotalCount) +
|
|
(LOWPASS_COEFFICIENT_1 * TotalCount));
|
|
past->past_Usage = past->past_AverageInsideCount / past->past_AverageTotalCount;
|
|
}
|
|
pahsc->pahsc_LastExitCount = CurrentCount;
|
|
past->past_IfLastExitValid = 1;
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|