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senoner |
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/*************************************************************************** |
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* * |
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* LinuxSampler - modular, streaming capable sampler * |
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* * |
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* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck * |
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* Copyright (C) 2005 - 2007 Christian Schoenebeck * |
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* * |
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* This program is free software; you can redistribute it and/or modify * |
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* it under the terms of the GNU General Public License as published by * |
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* the Free Software Foundation; either version 2 of the License, or * |
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* (at your option) any later version. * |
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* * |
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* This program is distributed in the hope that it will be useful, * |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of * |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
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* GNU General Public License for more details. * |
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* * |
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* You should have received a copy of the GNU General Public License * |
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* along with this program; if not, write to the Free Software * |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, * |
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* MA 02111-1307 USA * |
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***************************************************************************/ |
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#include "AudioOutputDeviceAsio.h" |
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#include "AudioOutputDeviceFactory.h" |
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#define kMaxInputChannels 32 |
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#define kMaxOutputChannels 32 |
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#define ASIO_MAX_DEVICE_INFO 32 |
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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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// internal data storage |
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typedef struct DriverInfo |
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{ |
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// ASIOInit() |
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ASIODriverInfo driverInfo; |
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// ASIOGetChannels() |
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long numInputChannels; |
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long numOutputChannels; |
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// ASIOGetBufferSize() |
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long minBufSize; |
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long maxBufSize; |
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long preferredBufSize; |
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long bufGranularity; |
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long chosenBufSize; |
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// ASIOGetSampleRate() |
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ASIOSampleRate sampleRate; |
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int numSampleRates; |
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std::vector<int> sampleRates; |
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// ASIOOutputReady() |
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bool ASIOOutputReadySupported; |
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// ASIOGetLatencies () |
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long inputLatency; |
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long outputLatency; |
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// ASIOCreateBuffers () |
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long numInputBuffers; // becomes number of actual created input buffers |
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long numOutputBuffers; // becomes number of actual created output buffers |
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ASIOBufferInfo bufferInfos[kMaxInputChannels + kMaxOutputChannels]; // buffer info's |
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// ASIOGetChannelInfo() |
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ASIOChannelInfo 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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} DriverInfo; |
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extern AsioDrivers* asioDrivers; |
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extern bool loadAsioDriver(char *name); |
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static ASIODriverInfo MyAsioDriverInfo; |
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static DriverInfo asioDriverInfo = {0}; |
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static bool asioDriverOpened; |
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static bool AudioOutputDeviceAsioInstantiated = false; |
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static String currentAsioDriverName; |
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static std::vector<String> asioDriverList; |
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static bool asioDriverListLoaded = false; |
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namespace LinuxSampler { |
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// callback prototypes |
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ASIOCallbacks asioCallbacks; |
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ASIOBufferInfo bufferInfos[2]; |
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AudioOutputDeviceAsio *GlobalAudioOutputDeviceAsioThisPtr; |
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void floatToASIOSTInt16LSB(float *in, void *dest, int numSamples) { |
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int16_t *out = (int16_t *)dest; |
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for(int i=0; i < numSamples ; i++) { |
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float sample_point = in[i] * 32768.0f; |
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if (sample_point < -32768.0) sample_point = -32768.0; |
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if (sample_point > 32767.0) sample_point = 32767.0; |
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out[i] = (int16_t)sample_point; |
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} |
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} |
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void floatToASIOSTInt32LSB(float *in, void *dest, int numSamples) { |
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int32_t *out = (int32_t *)dest; |
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for(int i=0; i < numSamples ; i++) { |
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double sample_point = in[i] * 2147483648.0; |
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if (sample_point < - 2147483648.0) sample_point = -2147483648.0; |
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if (sample_point > 2147483647.0) sample_point = 2147483647.0; |
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out[i] = (int32_t)(sample_point); |
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} |
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} |
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static bool ASIO_loadAsioDriver(char *name) |
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{ |
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dmsg(1,("ASIO_loadAsioDriver: trying to load '%s'\n",name)); |
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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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int ASIO_OpenAndQueryDeviceInfo(char *driverName, DriverInfo *driverInfo, ASIODriverInfo *asioDriverInfo) |
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{ |
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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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ASIOError asioError; |
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dmsg(1,("ASIO_OpenAndQueryDeviceInfo driverName='%s' current='%s'\n",driverName, currentAsioDriverName.c_str() )); |
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if(!strcmp(driverName, currentAsioDriverName.c_str() )) { |
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// if the given ASIO driver name == current ASIO driver name and the driver |
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// was already opened then do nothing |
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if(asioDriverOpened) { |
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dmsg(0,("asioDriver ALREADY OPENED, DOING NOTHING !\n")); |
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return 0; |
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} |
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} |
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else { |
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dmsg(1,("driverName != currentAsioDriverName , new asio driver specified, opening device ....\n")); |
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// if a new ASIO driver name was specified then first check if we need to close |
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// the old one |
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if(asioDriverOpened) { |
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dmsg(0,("different asioDriver ALREADY OPENED, closing old one !\n")); |
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asioDriverOpened = false; |
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ASIOExit(); // close the old ASIO driver |
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} |
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} |
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currentAsioDriverName = driverName; |
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memset((void *)asioDriverInfo,0,sizeof(ASIODriverInfo)); |
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asioDriverInfo->asioVersion=1; |
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asioDriverInfo->sysRef = NULL; |
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/* MUST BE CHECKED : to force fragments loading on Mac */ |
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//ASIO_loadAsioDriver("dummy"); |
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dmsg(1,("Before ASIO_loadAsioDriver('%s')\n",driverName)); |
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if ( !ASIO_loadAsioDriver(driverName) ) { |
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dmsg(1,("ASIO_OpenAndQueryDeviceInfo could not loadAsioDriver %s\n", driverName)); |
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return -1; |
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} |
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dmsg(1,("Before ASIOInit()\n")); |
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if( (asioError = ASIOInit(asioDriverInfo)) != ASE_OK ) { |
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dmsg(1,("ASIO_OpenAndQueryDeviceInfo: ASIOInit returned %d for %s\n", asioError, driverName)); |
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return asioError; |
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} |
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dmsg(1,("Before ASIOGetChannels()\n")); |
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if( (asioError = ASIOGetChannels(&driverInfo->numInputChannels, &driverInfo->numOutputChannels) != ASE_OK)) { |
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dmsg(1,("ASIO_OpenAndQueryDeviceInfo could not ASIOGetChannels for %s\n", driverName)); |
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return asioError; |
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} |
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dmsg(1,("Before ASIOGetBufferSize()\n")); |
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if( (asioError = ASIOGetBufferSize(&driverInfo->minBufSize,&driverInfo->maxBufSize,&driverInfo->preferredBufSize,&driverInfo->bufGranularity) != ASE_OK)) { |
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dmsg(1,("ASIO_OpenAndQueryDeviceInfo could not ASIOGetBufferSize for %s\n", driverName)); |
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return asioError; |
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} |
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dmsg(0,("ASIO_OpenAndQueryDeviceInfo: InputChannels = %d\n", driverInfo->numInputChannels )); |
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dmsg(0,("ASIO_OpenAndQueryDeviceInfo: OutputChannels = %d\n", driverInfo->numOutputChannels )); |
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/* Loop through the possible sampling rates and check each to see if the device supports it. */ |
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driverInfo->numSampleRates = 0; |
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driverInfo->sampleRates.clear(); |
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for (int index = 0; index < MAX_NUMSAMPLINGRATES; index++) { |
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if (ASIOCanSampleRate(possibleSampleRates[index]) != ASE_NoClock) { |
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dmsg(1,("ASIOCanSampleRate: possible sample rate = %d\n", (long)possibleSampleRates[index])); |
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driverInfo->sampleRates.push_back( (int)possibleSampleRates[index] ); |
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driverInfo->numSampleRates++; |
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} |
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} |
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/* get the channel infos for each output channel (including sample format) */ |
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for(int i=0 ; i < driverInfo->numOutputChannels ; i++) { |
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driverInfo->channelInfos[i].channel = i; |
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driverInfo->channelInfos[i].isInput = ASIOFalse; |
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ASIOGetChannelInfo(&driverInfo->channelInfos[i]); |
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dmsg(1,("channelInfos[%d].type (sampleformat) = %d\n", i, driverInfo->channelInfos[i].type)); |
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} |
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dmsg(1,("ASIO_OpenAndQueryDeviceInfo: driver opened.\n")); |
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asioDriverOpened = true; |
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return ASE_OK; |
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} |
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std::vector<String> getAsioDriverNames() { |
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char* names[ASIO_MAX_DEVICE_INFO]; |
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int numDrivers; |
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if(asioDriverListLoaded) { |
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dmsg(1,("getAsioDriverNames: ASIO driver list already loaded, doing returning cached list.\n")); |
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return asioDriverList; |
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} |
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/* MUST BE CHECKED : to force fragments loading on Mac */ |
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ASIO_loadAsioDriver("dummy"); |
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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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for (int i = 0 ; i < ASIO_MAX_DEVICE_INFO ; i++) { |
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names[i] = new char[32]; |
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memset(names[i],0,32); |
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} |
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/* Get names of all available ASIO drivers */ |
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asioDrivers->getDriverNames(names,ASIO_MAX_DEVICE_INFO); |
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dmsg(1,("getAsioDriverNames: numDrivers=%d\n",numDrivers)); |
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for (int i = 0 ; i < numDrivers ; i++) { |
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dmsg(1,("ASIO DRIVERLIST: i=%d name='%s'\n",i,names[i])); |
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#if 1 |
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asioDriverList.push_back(names[i]); |
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#else |
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int asioError; |
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// FIXME: we currently try what is the best methode to exclude not connected devices or not working drivers |
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// the code below is for testing only, it tried to load each ASIO driver and if it gives an error it is not included |
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// in the list of available drivers (asioDriverList) |
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if ( ASIO_loadAsioDriver(names[i]) ) { |
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if( (asioError = ASIOInit(&MyAsioDriverInfo)) == ASE_OK ) { |
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asioDriverList.push_back(names[i]); |
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} |
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else { |
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dmsg(0,("getDriverList: ASIOInit of driver %s gave Error %d ! ignoring it.\n", names[i],asioError)); |
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} |
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} |
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else { |
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dmsg(0,("getDriverList: load driver %s failed! ignoring it.\n", names[i])); |
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} |
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// FIXME: we need to check this ASIOExit is needed (gave a crash on a ASIO ADSP24(WDM) card so we commented it out) |
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//ASIOExit(); |
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#endif |
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currentAsioDriverName=""; |
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} |
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for (int i = 0 ; i < ASIO_MAX_DEVICE_INFO ; i++) { |
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delete names[i]; |
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} |
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dmsg(1,("getAsioDriverNames: returing from function. asioDriverList.size()=%d\n", asioDriverList.size() )); |
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asioDriverListLoaded = true; |
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return asioDriverList; |
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} |
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unsigned long get_sys_reference_time() |
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{ |
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// get the system reference time |
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#if WINDOWS |
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return timeGetTime(); |
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#elif MAC |
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static const double twoRaisedTo32 = 4294967296.; |
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UnsignedWide ys; |
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Microseconds(&ys); |
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double r = ((double)ys.hi * twoRaisedTo32 + (double)ys.lo); |
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return (unsigned long)(r / 1000.); |
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#endif |
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} |
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//---------------------------------------------------------------------------------- |
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// conversion from 64 bit ASIOSample/ASIOTimeStamp to double float |
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#if NATIVE_INT64 |
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#define ASIO64toDouble(a) (a) |
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#else |
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const double twoRaisedTo32 = 4294967296.; |
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#define ASIO64toDouble(a) ((a).lo + (a).hi * twoRaisedTo32) |
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#endif |
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ASIOTime* AudioOutputDeviceAsio::bufferSwitchTimeInfo(ASIOTime *timeInfo, long index, ASIOBool processNow) |
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{ |
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static long processedSamples = 0; |
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// store the timeInfo for later use |
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asioDriverInfo.tInfo = *timeInfo; |
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// get the time stamp of the buffer, not necessary if no |
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// synchronization to other media is required |
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if (timeInfo->timeInfo.flags & kSystemTimeValid) |
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asioDriverInfo.nanoSeconds = ASIO64toDouble(timeInfo->timeInfo.systemTime); |
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else |
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asioDriverInfo.nanoSeconds = 0; |
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if (timeInfo->timeInfo.flags & kSamplePositionValid) |
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asioDriverInfo.samples = ASIO64toDouble(timeInfo->timeInfo.samplePosition); |
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else |
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asioDriverInfo.samples = 0; |
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if (timeInfo->timeCode.flags & kTcValid) |
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asioDriverInfo.tcSamples = ASIO64toDouble(timeInfo->timeCode.timeCodeSamples); |
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else |
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asioDriverInfo.tcSamples = 0; |
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// get the system reference time |
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asioDriverInfo.sysRefTime = get_sys_reference_time(); |
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// buffer size in samples |
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long buffSize = asioDriverInfo.chosenBufSize; |
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int32_t *p; |
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// tell LinuxSampler to render a fragment of buffSize samples |
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GlobalAudioOutputDeviceAsioThisPtr->RenderAudio(buffSize); |
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// now write and convert the samples to the ASIO buffer |
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for (int i = 0; i < asioDriverInfo.numOutputBuffers; i++) |
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{ |
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// do processing for the outputs only |
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switch (asioDriverInfo.channelInfos[i].type) |
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{ |
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case ASIOSTInt16LSB: |
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memset (asioDriverInfo.bufferInfos[i].buffers[index], 0, buffSize * 2); |
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break; |
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case ASIOSTInt24LSB: // used for 20 bits as well |
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memset (asioDriverInfo.bufferInfos[i].buffers[index], 0, buffSize * 3); |
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break; |
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|
|
case ASIOSTInt32LSB: |
358 |
|
|
p = (int32_t *)asioDriverInfo.bufferInfos[i].buffers[index]; |
359 |
|
|
floatToASIOSTInt32LSB(GlobalAudioOutputDeviceAsioThisPtr->Channels[i]->Buffer(), p, buffSize); |
360 |
|
|
break; |
361 |
|
|
case ASIOSTFloat32LSB: // IEEE 754 32 bit float, as found on Intel x86 architecture |
362 |
|
|
throw AudioOutputException(String("ASIO Error: ASIOSTFloat32LSB not yet supported! report to LinuxSampler developers.") ); |
363 |
|
|
break; |
364 |
|
|
case ASIOSTFloat64LSB: // IEEE 754 64 bit double float, as found on Intel x86 architecture |
365 |
|
|
throw AudioOutputException(String("ASIO Error: ASIOSTFloat64LSB not yet supported! report to LinuxSampler developers.") ); |
366 |
|
|
break; |
367 |
|
|
|
368 |
|
|
// these are used for 32 bit data buffer, with different alignment of the data inside |
369 |
|
|
// 32 bit PCI bus systems can more easily used with these |
370 |
|
|
case ASIOSTInt32LSB16: // 32 bit data with 18 bit alignment |
371 |
|
|
throw AudioOutputException(String("ASIO Error: ASIOSTInt32LSB16 not yet supported! report to LinuxSampler developers.") ); |
372 |
|
|
break; |
373 |
|
|
case ASIOSTInt32LSB18: // 32 bit data with 18 bit alignment |
374 |
|
|
throw AudioOutputException(String("ASIO Error: ASIOSTInt32LSB18 not yet supported! report to LinuxSampler developers.") ); |
375 |
|
|
break; |
376 |
|
|
case ASIOSTInt32LSB20: // 32 bit data with 20 bit alignment |
377 |
|
|
throw AudioOutputException(String("ASIO Error: ASIOSTInt32LSB20 not yet supported! report to LinuxSampler developers.") ); |
378 |
|
|
break; |
379 |
|
|
case ASIOSTInt32LSB24: // 32 bit data with 24 bit alignment |
380 |
|
|
throw AudioOutputException(String("ASIO Error: ASIOSTInt32LSB24 not yet supported! report to LinuxSampler developers.") ); |
381 |
|
|
break; |
382 |
|
|
case ASIOSTInt16MSB: |
383 |
|
|
throw AudioOutputException(String("ASIO Error: ASIOSTInt16MSB not yet supported! report to LinuxSampler developers.") ); |
384 |
|
|
break; |
385 |
|
|
case ASIOSTInt24MSB: // used for 20 bits as well |
386 |
|
|
throw AudioOutputException(String("ASIO Error: ASIOSTInt24MSB not yet supported! report to LinuxSampler developers.") ); |
387 |
|
|
break; |
388 |
|
|
case ASIOSTInt32MSB: |
389 |
|
|
throw AudioOutputException(String("ASIO Error: ASIOSTInt32MSB not yet supported! report to LinuxSampler developers.") ); |
390 |
|
|
break; |
391 |
|
|
case ASIOSTFloat32MSB: // IEEE 754 32 bit float, as found on bigendian architecture |
392 |
|
|
throw AudioOutputException(String("ASIO Error: ASIOSTFloat32MSB not yet supported! report to LinuxSampler developers.") ); |
393 |
|
|
break; |
394 |
|
|
case ASIOSTFloat64MSB: // IEEE 754 64 bit double float, as found on bigendian architecture |
395 |
|
|
throw AudioOutputException(String("ASIO Error: ASIOSTFloat64MSB not yet supported! report to LinuxSampler developers.") ); |
396 |
|
|
break; |
397 |
|
|
|
398 |
|
|
// these are used for 32 bit data buffer, with different alignment of the data inside |
399 |
|
|
// 32 bit PCI bus systems can more easily used with these |
400 |
|
|
case ASIOSTInt32MSB16: // 32 bit data with 18 bit alignment |
401 |
|
|
throw AudioOutputException(String("ASIO Error: ASIOSTInt32MSB16 not yet supported! report to LinuxSampler developers.") ); |
402 |
|
|
break; |
403 |
|
|
case ASIOSTInt32MSB18: // 32 bit data with 18 bit alignment |
404 |
|
|
throw AudioOutputException(String("ASIO Error: ASIOSTInt32MSB18 not yet supported! report to LinuxSampler developers.") ); |
405 |
|
|
break; |
406 |
|
|
case ASIOSTInt32MSB20: // 32 bit data with 20 bit alignment |
407 |
|
|
throw AudioOutputException(String("ASIO Error: ASIOSTInt32MSB20 not yet supported! report to LinuxSampler developers.") ); |
408 |
|
|
break; |
409 |
|
|
case ASIOSTInt32MSB24: // 32 bit data with 24 bit alignment |
410 |
|
|
throw AudioOutputException(String("ASIO Error: ASIOSTInt32MSB24 not yet supported! report to LinuxSampler developers.") ); |
411 |
|
|
break; |
412 |
|
|
default: |
413 |
|
|
throw AudioOutputException(String("ASIO Error: unknown ASIOST sample format. report error.") ); |
414 |
|
|
break; |
415 |
|
|
} |
416 |
|
|
} |
417 |
|
|
|
418 |
|
|
// finally if the driver supports the ASIOOutputReady() optimization, do it here, all data are in place |
419 |
|
|
if (asioDriverInfo.ASIOOutputReadySupported) |
420 |
|
|
ASIOOutputReady(); |
421 |
|
|
|
422 |
|
|
processedSamples += buffSize; |
423 |
|
|
return 0L; |
424 |
|
|
} |
425 |
|
|
|
426 |
|
|
void AudioOutputDeviceAsio::bufferSwitch(long index, ASIOBool processNow) |
427 |
|
|
{ |
428 |
|
|
// the actual processing callback. |
429 |
|
|
// as this is a "back door" into the bufferSwitchTimeInfo a timeInfo needs to be created |
430 |
|
|
// though it will only set the timeInfo.samplePosition and timeInfo.systemTime fields and the according flags |
431 |
|
|
ASIOTime timeInfo; |
432 |
|
|
memset (&timeInfo, 0, sizeof (timeInfo)); |
433 |
|
|
|
434 |
|
|
// get the time stamp of the buffer, not necessary if no |
435 |
|
|
// synchronization to other media is required |
436 |
|
|
if(ASIOGetSamplePosition(&timeInfo.timeInfo.samplePosition, &timeInfo.timeInfo.systemTime) == ASE_OK) |
437 |
|
|
timeInfo.timeInfo.flags = kSystemTimeValid | kSamplePositionValid; |
438 |
|
|
|
439 |
|
|
bufferSwitchTimeInfo (&timeInfo, index, processNow); |
440 |
|
|
} |
441 |
|
|
|
442 |
|
|
void sampleRateChanged(ASIOSampleRate sRate) |
443 |
|
|
{ |
444 |
|
|
// do whatever you need to do if the sample rate changed |
445 |
|
|
// usually this only happens during external sync. |
446 |
|
|
// Audio processing is not stopped by the driver, actual sample rate |
447 |
|
|
// might not have even changed, maybe only the sample rate status of an |
448 |
|
|
// AES/EBU or S/PDIF digital input at the audio device. |
449 |
|
|
// You might have to update time/sample related conversion routines, etc. |
450 |
|
|
} |
451 |
|
|
|
452 |
|
|
long asioMessages(long selector, long value, void* message, double* opt) |
453 |
|
|
{ |
454 |
|
|
dmsg(1,("asioMessages selector=%d value=%d\n",selector,value)); |
455 |
|
|
// currently the parameters "value", "message" and "opt" are not used. |
456 |
|
|
long ret = 0; |
457 |
|
|
switch(selector) |
458 |
|
|
{ |
459 |
|
|
case kAsioSelectorSupported: |
460 |
|
|
if(value == kAsioResetRequest |
461 |
|
|
|| value == kAsioEngineVersion |
462 |
|
|
|| value == kAsioResyncRequest |
463 |
|
|
|| value == kAsioLatenciesChanged |
464 |
|
|
// the following three were added for ASIO 2.0, we don't necessarily have to support them |
465 |
|
|
|| value == kAsioSupportsTimeInfo |
466 |
|
|
|| value == kAsioSupportsTimeCode |
467 |
|
|
|| value == kAsioSupportsInputMonitor) |
468 |
|
|
ret = 1L; |
469 |
|
|
break; |
470 |
|
|
case kAsioResetRequest: |
471 |
|
|
// defer the task and perform the reset of the driver during the next "safe" situation |
472 |
|
|
// You cannot reset the driver right now, as this code is called from the driver. |
473 |
|
|
// Reset the driver is done by completely destruct is. I.e. ASIOStop(), ASIODisposeBuffers(), Destruction |
474 |
|
|
// Afterwards you initialize the driver again. |
475 |
|
|
//GlobalAudioOutputDeviceAsioThisPtr->asioDriverInfo.stopped; // In this sample the processing will just stop |
476 |
|
|
ret = 1L; |
477 |
|
|
break; |
478 |
|
|
case kAsioResyncRequest: |
479 |
|
|
// This informs the application, that the driver encountered some non fatal data loss. |
480 |
|
|
// It is used for synchronization purposes of different media. |
481 |
|
|
// Added mainly to work around the Win16Mutex problems in Windows 95/98 with the |
482 |
|
|
// Windows Multimedia system, which could loose data because the Mutex was hold too long |
483 |
|
|
// by another thread. |
484 |
|
|
// However a driver can issue it in other situations, too. |
485 |
|
|
ret = 1L; |
486 |
|
|
break; |
487 |
|
|
case kAsioLatenciesChanged: |
488 |
|
|
// This will inform the host application that the drivers were latencies changed. |
489 |
|
|
// Beware, it this does not mean that the buffer sizes have changed! |
490 |
|
|
// You might need to update internal delay data. |
491 |
|
|
ret = 1L; |
492 |
|
|
break; |
493 |
|
|
case kAsioEngineVersion: |
494 |
|
|
// return the supported ASIO version of the host application |
495 |
|
|
// If a host applications does not implement this selector, ASIO 1.0 is assumed |
496 |
|
|
// by the driver |
497 |
|
|
ret = 2L; |
498 |
|
|
break; |
499 |
|
|
case kAsioSupportsTimeInfo: |
500 |
|
|
// informs the driver wether the asioCallbacks.bufferSwitchTimeInfo() callback |
501 |
|
|
// is supported. |
502 |
|
|
// For compatibility with ASIO 1.0 drivers the host application should always support |
503 |
|
|
// the "old" bufferSwitch method, too. |
504 |
|
|
ret = 1; |
505 |
|
|
break; |
506 |
|
|
case kAsioSupportsTimeCode: |
507 |
|
|
// informs the driver wether application is interested in time code info. |
508 |
|
|
// If an application does not need to know about time code, the driver has less work |
509 |
|
|
// to do. |
510 |
|
|
ret = 0; |
511 |
|
|
break; |
512 |
|
|
} |
513 |
|
|
return ret; |
514 |
|
|
} |
515 |
|
|
|
516 |
|
|
|
517 |
|
|
// *************** ParameterCard *************** |
518 |
|
|
// * |
519 |
|
|
|
520 |
|
|
AudioOutputDeviceAsio::ParameterCard::ParameterCard() : DeviceCreationParameterString() { |
521 |
|
|
InitWithDefault(); // use default card |
522 |
|
|
} |
523 |
|
|
|
524 |
|
|
AudioOutputDeviceAsio::ParameterCard::ParameterCard(String s) throw (Exception) : DeviceCreationParameterString(s) { |
525 |
|
|
} |
526 |
|
|
|
527 |
|
|
String AudioOutputDeviceAsio::ParameterCard::Description() { |
528 |
|
|
return "Sound card to be used"; |
529 |
|
|
} |
530 |
|
|
|
531 |
|
|
bool AudioOutputDeviceAsio::ParameterCard::Fix() { |
532 |
|
|
return true; |
533 |
|
|
} |
534 |
|
|
|
535 |
|
|
bool AudioOutputDeviceAsio::ParameterCard::Mandatory() { |
536 |
|
|
return false; |
537 |
|
|
} |
538 |
|
|
|
539 |
|
|
std::map<String,DeviceCreationParameter*> AudioOutputDeviceAsio::ParameterCard::DependsAsParameters() { |
540 |
|
|
return std::map<String,DeviceCreationParameter*>(); // no dependencies |
541 |
|
|
} |
542 |
|
|
|
543 |
|
|
optional<String> AudioOutputDeviceAsio::ParameterCard::DefaultAsString(std::map<String,String> Parameters) { |
544 |
|
|
|
545 |
|
|
std::vector<String> cards = PossibilitiesAsString(Parameters); |
546 |
|
|
if (cards.empty()) throw Exception("AudioOutputDeviceAsio: Can't find any card"); |
547 |
|
|
dmsg(1,("AudioOutputDeviceAsio::ParameterCard::DefaultAsString='%s'\n",cards[0].c_str() )); |
548 |
|
|
return cards[0]; // first card by default |
549 |
|
|
} |
550 |
|
|
|
551 |
|
|
std::vector<String> AudioOutputDeviceAsio::ParameterCard::PossibilitiesAsString(std::map<String,String> Parameters) { |
552 |
|
|
dmsg(1,("AudioOutputDeviceAsio::ParameterCard::PossibilitiesAsString:\n")); |
553 |
|
|
return getAsioDriverNames(); |
554 |
|
|
} |
555 |
|
|
|
556 |
|
|
void AudioOutputDeviceAsio::ParameterCard::OnSetValue(String s) throw (Exception) { |
557 |
|
|
// not posssible, as parameter is fix |
558 |
|
|
} |
559 |
|
|
|
560 |
|
|
String AudioOutputDeviceAsio::ParameterCard::Name() { |
561 |
|
|
return "CARD"; |
562 |
|
|
} |
563 |
|
|
|
564 |
|
|
|
565 |
|
|
|
566 |
|
|
// *************** ParameterSampleRate *************** |
567 |
|
|
// * |
568 |
|
|
|
569 |
|
|
AudioOutputDeviceAsio::ParameterSampleRate::ParameterSampleRate() : AudioOutputDevice::ParameterSampleRate::ParameterSampleRate() { |
570 |
|
|
} |
571 |
|
|
|
572 |
|
|
AudioOutputDeviceAsio::ParameterSampleRate::ParameterSampleRate(String s) : AudioOutputDevice::ParameterSampleRate::ParameterSampleRate(s) { |
573 |
|
|
} |
574 |
|
|
|
575 |
|
|
std::map<String,DeviceCreationParameter*> AudioOutputDeviceAsio::ParameterSampleRate::DependsAsParameters() { |
576 |
|
|
static ParameterCard card; |
577 |
|
|
std::map<String,DeviceCreationParameter*> dependencies; |
578 |
|
|
dependencies[card.Name()] = &card; |
579 |
|
|
return dependencies; |
580 |
|
|
} |
581 |
|
|
|
582 |
|
|
optional<int> AudioOutputDeviceAsio::ParameterSampleRate::DefaultAsInt(std::map<String,String> Parameters) { |
583 |
|
|
if (!Parameters.count("CARD")) { |
584 |
|
|
dmsg(1,("AudioOutputDeviceAsio::ParameterSampleRate::DefaultAsInt returning optional<int>::nothing (parameter CARD not supplied)\n")); |
585 |
|
|
return optional<int>::nothing; |
586 |
|
|
} |
587 |
|
|
|
588 |
|
|
// return the default samplerate. first try 44100 then 48000, then the first samplerate found in the list |
589 |
|
|
ParameterCard card(Parameters["CARD"]); |
590 |
|
|
if( ASIO_OpenAndQueryDeviceInfo((char *)card.ValueAsString().c_str(), &asioDriverInfo, &MyAsioDriverInfo) != ASE_OK) { |
591 |
|
|
throw AudioOutputException(String("Error: ASIO Initalization Error") ); |
592 |
|
|
} |
593 |
|
|
for(int i = 0 ; i < asioDriverInfo.sampleRates.size() ; i++) { |
594 |
|
|
if(asioDriverInfo.sampleRates[i] == 44100) { |
595 |
|
|
return 44100; |
596 |
|
|
dmsg(1,("AudioOutputDeviceAsio::ParameterSampleRate::DefaultAsInt returning 44100\n")); |
597 |
|
|
} |
598 |
|
|
if(asioDriverInfo.sampleRates[i] == 48000) { |
599 |
|
|
dmsg(1,("AudioOutputDeviceAsio::ParameterSampleRate::DefaultAsInt returning 48000\n")); |
600 |
|
|
return 48000; |
601 |
|
|
} |
602 |
|
|
} |
603 |
|
|
dmsg(1,("AudioOutputDeviceAsio::ParameterSampleRate::DefaultAsInt returning %d\n",asioDriverInfo.sampleRates[0])); |
604 |
|
|
return asioDriverInfo.sampleRates[0]; |
605 |
|
|
} |
606 |
|
|
|
607 |
|
|
std::vector<int> AudioOutputDeviceAsio::ParameterSampleRate::PossibilitiesAsInt(std::map<String,String> Parameters) { |
608 |
|
|
dmsg(1,("AudioOutputDeviceAsio::ParameterSampleRate::PossibilitiesAsInt\n")); |
609 |
|
|
if (!Parameters.count("CARD")) { |
610 |
|
|
dmsg(1,("AudioOutputDeviceAsio::ParameterSampleRate::PossibilitiesAsInt returning empty vector (parameter CARD not supplied)\n")); |
611 |
|
|
return std::vector<int>(); |
612 |
|
|
} |
613 |
|
|
|
614 |
|
|
ParameterCard card(Parameters["CARD"]); |
615 |
|
|
if( ASIO_OpenAndQueryDeviceInfo((char *)card.ValueAsString().c_str(), &asioDriverInfo, &MyAsioDriverInfo) != ASE_OK) { |
616 |
|
|
throw AudioOutputException(String("Error: ASIO Initalization Error") ); |
617 |
|
|
} |
618 |
|
|
|
619 |
|
|
for(int i=0;i<asioDriverInfo.sampleRates.size();i++) { |
620 |
|
|
dmsg(1,("AudioOutputDeviceAsio::ParameterSampleRate::PossibilitiesAsInt samplerate[%d]=%d\n",i,asioDriverInfo.sampleRates[i])); |
621 |
|
|
} |
622 |
|
|
|
623 |
|
|
return asioDriverInfo.sampleRates; |
624 |
|
|
} |
625 |
|
|
|
626 |
|
|
|
627 |
|
|
|
628 |
|
|
// *************** ParameterChannels *************** |
629 |
|
|
// * |
630 |
|
|
|
631 |
|
|
AudioOutputDeviceAsio::ParameterChannels::ParameterChannels() : AudioOutputDevice::ParameterChannels::ParameterChannels() { |
632 |
|
|
//InitWithDefault(); |
633 |
|
|
// could not determine default value? ... |
634 |
|
|
//if (ValueAsInt() == 0) SetValue(2); // ... then (try) a common value |
635 |
|
|
} |
636 |
|
|
|
637 |
|
|
AudioOutputDeviceAsio::ParameterChannels::ParameterChannels(String s) : AudioOutputDevice::ParameterChannels::ParameterChannels(s) { |
638 |
|
|
} |
639 |
|
|
|
640 |
|
|
std::map<String,DeviceCreationParameter*> AudioOutputDeviceAsio::ParameterChannels::DependsAsParameters() { |
641 |
|
|
static ParameterCard card; |
642 |
|
|
std::map<String,DeviceCreationParameter*> dependencies; |
643 |
|
|
dependencies[card.Name()] = &card; |
644 |
|
|
return dependencies; |
645 |
|
|
} |
646 |
|
|
|
647 |
|
|
optional<int> AudioOutputDeviceAsio::ParameterChannels::DefaultAsInt(std::map<String,String> Parameters) { |
648 |
|
|
dmsg(1,("AudioOutputDeviceAsio::ParameterChannels::DefaultAsInt\n")); |
649 |
|
|
if (!Parameters.count("CARD")) { |
650 |
|
|
dmsg(1,("AudioOutputDeviceAsio::ParameterChannels::DefaultAsInt returning optional<int>::nothing (CARD parameter not supplied)\n")); |
651 |
|
|
return optional<int>::nothing; |
652 |
|
|
} |
653 |
|
|
|
654 |
|
|
ParameterCard card(Parameters["CARD"]); |
655 |
|
|
if( ASIO_OpenAndQueryDeviceInfo((char *)card.ValueAsString().c_str(), &asioDriverInfo, &MyAsioDriverInfo) != ASE_OK) { |
656 |
|
|
throw AudioOutputException(String("Error: ASIO Initialization Error") ); |
657 |
|
|
} |
658 |
|
|
dmsg(1,("AudioOutputDeviceAsio::ParameterChannels::DefaultAsInt returning %d\n",asioDriverInfo.numOutputChannels)); |
659 |
|
|
return asioDriverInfo.numOutputChannels; |
660 |
|
|
} |
661 |
|
|
|
662 |
|
|
optional<int> AudioOutputDeviceAsio::ParameterChannels::RangeMinAsInt(std::map<String,String> Parameters) { |
663 |
|
|
dmsg(1,("AudioOutputDeviceAsio::ParameterChannels::RangeMinAsInt!\n")); |
664 |
|
|
if (!Parameters.count("CARD")) { |
665 |
|
|
dmsg(1,("AudioOutputDeviceAsio::ParameterChannels::RangeMinAsInt returning optional<int>::nothing (CARD parameter not supplied)\n")); |
666 |
|
|
return optional<int>::nothing; |
667 |
|
|
} |
668 |
|
|
dmsg(1,("AudioOutputDeviceAsio::ParameterChannels::RangeMinAsInt returning 1\n")); |
669 |
|
|
return 1; |
670 |
|
|
} |
671 |
|
|
|
672 |
|
|
optional<int> AudioOutputDeviceAsio::ParameterChannels::RangeMaxAsInt(std::map<String,String> Parameters) { |
673 |
|
|
dmsg(1,("AudioOutputDeviceAsio::ParameterChannels::RangeMaxAsInt!\n")); |
674 |
|
|
if (!Parameters.count("CARD")) { |
675 |
|
|
dmsg(1,("AudioOutputDeviceAsio::ParameterChannels::RangeMaxAsInt returning optional<int>::nothing (CARD parameter not supplied)\n")); |
676 |
|
|
return optional<int>::nothing; |
677 |
|
|
} |
678 |
|
|
|
679 |
|
|
ParameterCard card(Parameters["CARD"]); |
680 |
|
|
if( ASIO_OpenAndQueryDeviceInfo((char *)card.ValueAsString().c_str(), &asioDriverInfo, &MyAsioDriverInfo) != ASE_OK) { |
681 |
|
|
throw AudioOutputException(String("Error: ASIO Init Error") ); |
682 |
|
|
} |
683 |
|
|
dmsg(1,("AudioOutputDeviceAsio::ParameterChannels::RangeMaxAsInt returning %d\n",asioDriverInfo.numOutputChannels)); |
684 |
|
|
return asioDriverInfo.numOutputChannels; |
685 |
|
|
} |
686 |
|
|
|
687 |
|
|
|
688 |
|
|
|
689 |
|
|
// *************** ParameterFragmentSize *************** |
690 |
|
|
// * |
691 |
|
|
|
692 |
|
|
AudioOutputDeviceAsio::ParameterFragmentSize::ParameterFragmentSize() : DeviceCreationParameterInt() { |
693 |
|
|
InitWithDefault(); |
694 |
|
|
} |
695 |
|
|
|
696 |
|
|
AudioOutputDeviceAsio::ParameterFragmentSize::ParameterFragmentSize(String s) throw (Exception) : DeviceCreationParameterInt(s) { |
697 |
|
|
} |
698 |
|
|
|
699 |
|
|
String AudioOutputDeviceAsio::ParameterFragmentSize::Description() { |
700 |
|
|
return "Size of each buffer fragment"; |
701 |
|
|
} |
702 |
|
|
|
703 |
|
|
bool AudioOutputDeviceAsio::ParameterFragmentSize::Fix() { |
704 |
|
|
return true; |
705 |
|
|
} |
706 |
|
|
|
707 |
|
|
bool AudioOutputDeviceAsio::ParameterFragmentSize::Mandatory() { |
708 |
|
|
return false; |
709 |
|
|
} |
710 |
|
|
|
711 |
|
|
std::map<String,DeviceCreationParameter*> AudioOutputDeviceAsio::ParameterFragmentSize::DependsAsParameters() { |
712 |
|
|
static ParameterCard card; |
713 |
|
|
std::map<String,DeviceCreationParameter*> dependencies; |
714 |
|
|
dependencies[card.Name()] = &card; |
715 |
|
|
return dependencies; |
716 |
|
|
} |
717 |
|
|
|
718 |
|
|
optional<int> AudioOutputDeviceAsio::ParameterFragmentSize::DefaultAsInt(std::map<String,String> Parameters) { |
719 |
|
|
dmsg(1,("AudioOutputDeviceAsio::ParameterFragmentSize::DefaultAsInt!\n")); |
720 |
|
|
if (!Parameters.count("CARD")) { |
721 |
|
|
dmsg(1,("AudioOutputDeviceAsio::ParameterFragmentSize::DefaultAsInt returning optional<int>::nothing (no CARD parameter supplied\n")); |
722 |
|
|
return optional<int>::nothing; |
723 |
|
|
} |
724 |
|
|
|
725 |
|
|
ParameterCard card(Parameters["CARD"]); |
726 |
|
|
if( ASIO_OpenAndQueryDeviceInfo((char *)card.ValueAsString().c_str(), &asioDriverInfo, &MyAsioDriverInfo) != ASE_OK) { |
727 |
|
|
throw AudioOutputException(String("Error: ASIO Initialization Error") ); |
728 |
|
|
} |
729 |
|
|
dmsg(1,("AudioOutputDeviceAsio::ParameterFragmentSize::DefaultAsInt returning %d\n",asioDriverInfo.preferredBufSize)); |
730 |
|
|
return asioDriverInfo.preferredBufSize; |
731 |
|
|
} |
732 |
|
|
|
733 |
|
|
optional<int> AudioOutputDeviceAsio::ParameterFragmentSize::RangeMinAsInt(std::map<String,String> Parameters) { |
734 |
|
|
dmsg(1,("AudioOutputDeviceAsio::ParameterFragmentSize::RangeMinAsInt!\n")); |
735 |
|
|
if (!Parameters.count("CARD")) { |
736 |
|
|
dmsg(1,("AudioOutputDeviceAsio::ParameterFragmentSize::RangeMinAsInt returning optional<int>::nothing (no CARD parameter supplied\n")); |
737 |
|
|
return optional<int>::nothing; |
738 |
|
|
} |
739 |
|
|
|
740 |
|
|
ParameterCard card(Parameters["CARD"]); |
741 |
|
|
if( ASIO_OpenAndQueryDeviceInfo((char *)card.ValueAsString().c_str(), &asioDriverInfo, &MyAsioDriverInfo) != ASE_OK) { |
742 |
|
|
throw AudioOutputException(String("Error: ASIO Initalization Error") ); |
743 |
|
|
} |
744 |
|
|
dmsg(1,("AudioOutputDeviceAsio::ParameterFragmentSize::RangeMinAsInt returning %d\n",asioDriverInfo.minBufSize)); |
745 |
|
|
return asioDriverInfo.minBufSize; |
746 |
|
|
} |
747 |
|
|
|
748 |
|
|
optional<int> AudioOutputDeviceAsio::ParameterFragmentSize::RangeMaxAsInt(std::map<String,String> Parameters) { |
749 |
|
|
dmsg(1,("AudioOutputDeviceAsio::ParameterFragmentSize::RangeMaxAsInt!\n")); |
750 |
|
|
if (!Parameters.count("CARD")) { |
751 |
|
|
dmsg(1,("AudioOutputDeviceAsio::ParameterFragmentSize::RangeMaxAsInt returning optional<int>::nothing (no CARD parameter supplied\n")); |
752 |
|
|
return optional<int>::nothing; |
753 |
|
|
} |
754 |
|
|
|
755 |
|
|
ParameterCard card(Parameters["CARD"]); |
756 |
|
|
if( ASIO_OpenAndQueryDeviceInfo((char *)card.ValueAsString().c_str(), &asioDriverInfo, &MyAsioDriverInfo) != ASE_OK) { |
757 |
|
|
throw AudioOutputException(String("Error: ASIO Initialization Error") ); |
758 |
|
|
} |
759 |
|
|
dmsg(1,("AudioOutputDeviceAsio::ParameterFragmentSize::RangeMaxAsInt returning %d\n",asioDriverInfo.maxBufSize)); |
760 |
|
|
return asioDriverInfo.maxBufSize; |
761 |
|
|
} |
762 |
|
|
|
763 |
|
|
std::vector<int> AudioOutputDeviceAsio::ParameterFragmentSize::PossibilitiesAsInt(std::map<String,String> Parameters) { |
764 |
|
|
dmsg(1,("AudioOutputDeviceAsio::ParameterFragmentSize::PossibilitiesAsInt!\n")); |
765 |
|
|
return std::vector<int>(); |
766 |
|
|
} |
767 |
|
|
|
768 |
|
|
void AudioOutputDeviceAsio::ParameterFragmentSize::OnSetValue(int i) throw (Exception) { |
769 |
|
|
// not posssible, as parameter is fix |
770 |
|
|
} |
771 |
|
|
|
772 |
|
|
String AudioOutputDeviceAsio::ParameterFragmentSize::Name() { |
773 |
|
|
return "FRAGMENTSIZE"; |
774 |
|
|
} |
775 |
|
|
|
776 |
|
|
|
777 |
|
|
|
778 |
|
|
// *************** AudioOutputDeviceAsio *************** |
779 |
|
|
// * |
780 |
|
|
|
781 |
|
|
/** |
782 |
|
|
* Create and initialize Asio audio output device with given parameters. |
783 |
|
|
* |
784 |
|
|
* @param Parameters - optional parameters |
785 |
|
|
* @throws AudioOutputException if output device cannot be opened |
786 |
|
|
*/ |
787 |
|
|
AudioOutputDeviceAsio::AudioOutputDeviceAsio(std::map<String,DeviceCreationParameter*> Parameters) : AudioOutputDevice(Parameters) { |
788 |
|
|
if(AudioOutputDeviceAsioInstantiated) throw Exception("AudioOutputDeviceAsio: Sorry, only one ASIO card at time can be opened"); |
789 |
|
|
AudioOutputDeviceAsioInstantiated = true; |
790 |
|
|
asioDriverOpened = false; |
791 |
|
|
this->uiAsioChannels = ((DeviceCreationParameterInt*)Parameters["CHANNELS"])->ValueAsInt(); |
792 |
|
|
this->uiSamplerate = ((DeviceCreationParameterInt*)Parameters["SAMPLERATE"])->ValueAsInt(); |
793 |
|
|
this->FragmentSize = ((DeviceCreationParameterInt*)Parameters["FRAGMENTSIZE"])->ValueAsInt(); |
794 |
|
|
String Card = ((DeviceCreationParameterString*)Parameters["CARD"])->ValueAsString(); |
795 |
|
|
|
796 |
|
|
|
797 |
|
|
dmsg(1,("AudioOutputDeviceAsio::AudioOutputDeviceAsio constructor\n")); |
798 |
|
|
|
799 |
|
|
asioIsPlaying = false; |
800 |
|
|
|
801 |
|
|
ASIO_OpenAndQueryDeviceInfo((char *)Card.c_str(), &asioDriverInfo, &MyAsioDriverInfo); |
802 |
|
|
dmsg(1,("AudioOutputDeviceAsio::AudioOutputDeviceAsio: after ASIO_OpenAndQueryDeviceInfo\n")); |
803 |
|
|
|
804 |
|
|
if( ASIOSetSampleRate(uiSamplerate) != ASE_OK ) { |
805 |
|
|
throw AudioOutputException(String("Error: ASIOSetSampleRate: cannot set samplerate. ") ); |
806 |
|
|
} |
807 |
|
|
dmsg(1,("AudioOutputDeviceAsio::AudioOutputDeviceAsio: after ASIOSetSampleRate\n")); |
808 |
|
|
|
809 |
|
|
if(ASIOOutputReady() == ASE_OK) asioDriverInfo.ASIOOutputReadySupported = true; |
810 |
|
|
else asioDriverInfo.ASIOOutputReadySupported = false; |
811 |
|
|
dmsg(1,("AudioOutputDeviceAsio::AudioOutputDeviceAsio: after ASIOOutputReady\n")); |
812 |
|
|
|
813 |
|
|
asioDriverInfo.numInputBuffers = 0; |
814 |
|
|
asioDriverInfo.numOutputBuffers = uiAsioChannels; |
815 |
|
|
asioDriverInfo.chosenBufSize = FragmentSize; |
816 |
|
|
|
817 |
|
|
for( int i = 0 ; i < uiAsioChannels ; i++) { |
818 |
|
|
asioDriverInfo.bufferInfos[i].isInput = ASIOFalse; |
819 |
|
|
asioDriverInfo.bufferInfos[i].channelNum = i; |
820 |
|
|
} |
821 |
|
|
|
822 |
|
|
asioCallbacks.bufferSwitch = &bufferSwitch; |
823 |
|
|
asioCallbacks.sampleRateDidChange = &sampleRateChanged; |
824 |
|
|
asioCallbacks.asioMessage = &asioMessages; |
825 |
|
|
asioCallbacks.bufferSwitchTimeInfo = &bufferSwitchTimeInfo; |
826 |
|
|
|
827 |
|
|
if ( ASIOCreateBuffers(asioDriverInfo.bufferInfos, asioDriverInfo.numOutputBuffers, asioDriverInfo.chosenBufSize = FragmentSize, &asioCallbacks) != ASE_OK ){ |
828 |
|
|
throw AudioOutputException(String("AudioOutputDeviceAsio: Error: ASIOCreateBuffers failed.") ); |
829 |
|
|
} |
830 |
|
|
dmsg(1,("AudioOutputDeviceAsio::AudioOutputDeviceAsio: after ASIOCreateBuffers\n")); |
831 |
|
|
|
832 |
|
|
// create audio channels for this audio device to which the sampler engines can write to |
833 |
|
|
for (int i = 0; i < uiAsioChannels; i++) this->Channels.push_back(new AudioChannel(i, FragmentSize)); |
834 |
|
|
|
835 |
|
|
// FIXME: temporary global variable used to store the this pointer for the ASIO callbacks wanting to access the AudioOutputDeviceAsio methods |
836 |
|
|
GlobalAudioOutputDeviceAsioThisPtr = this; |
837 |
|
|
|
838 |
|
|
if (((DeviceCreationParameterBool*)Parameters["ACTIVE"])->ValueAsBool()) { |
839 |
|
|
Play(); |
840 |
|
|
} |
841 |
|
|
} |
842 |
|
|
|
843 |
|
|
AudioOutputDeviceAsio::~AudioOutputDeviceAsio() { |
844 |
|
|
ASIOExit(); |
845 |
|
|
asioDriverOpened = false; |
846 |
|
|
AudioOutputDeviceAsioInstantiated = false; |
847 |
|
|
} |
848 |
|
|
|
849 |
|
|
void AudioOutputDeviceAsio::Play() { |
850 |
|
|
dmsg(1,("AudioOutputDeviceAsio::Play() !\n")); |
851 |
|
|
if ( ASIOStart() != ASE_OK ){ |
852 |
|
|
asioIsPlaying = false; |
853 |
|
|
throw AudioOutputException(String("AudioOutputDeviceAsio: Error: ASIOStart failed.") ); |
854 |
|
|
} |
855 |
|
|
else asioIsPlaying = true; |
856 |
|
|
} |
857 |
|
|
|
858 |
|
|
bool AudioOutputDeviceAsio::IsPlaying() { |
859 |
|
|
return asioIsPlaying; |
860 |
|
|
} |
861 |
|
|
|
862 |
|
|
void AudioOutputDeviceAsio::Stop() { |
863 |
|
|
dmsg(1,("AudioOutputDeviceAsio::Stop() !\n")); |
864 |
|
|
ASIOStop(); |
865 |
|
|
asioIsPlaying = false; |
866 |
|
|
} |
867 |
|
|
|
868 |
|
|
AudioChannel* AudioOutputDeviceAsio::CreateChannel(uint ChannelNr) { |
869 |
|
|
dmsg(1,("AudioOutputDeviceAsio::CreateChannel value=%d uiAsioChannels=%d\n",ChannelNr,uiAsioChannels)); |
870 |
|
|
// just create a mix channel |
871 |
|
|
return new AudioChannel(ChannelNr, Channel(ChannelNr % uiAsioChannels)); |
872 |
|
|
} |
873 |
|
|
|
874 |
|
|
uint AudioOutputDeviceAsio::MaxSamplesPerCycle() { |
875 |
|
|
dmsg(3,("AudioOutputDeviceAsio::MaxSamplesPerCycle value=%d\n",FragmentSize)); |
876 |
|
|
return FragmentSize; |
877 |
|
|
} |
878 |
|
|
|
879 |
|
|
uint AudioOutputDeviceAsio::SampleRate() { |
880 |
|
|
dmsg(1,("AudioOutputDeviceAsio::SampleRate value=%d\n",uiSamplerate)); fflush(stdout); |
881 |
|
|
return uiSamplerate; |
882 |
|
|
} |
883 |
|
|
|
884 |
|
|
String AudioOutputDeviceAsio::Name() { |
885 |
|
|
return "ASIO"; |
886 |
|
|
} |
887 |
|
|
|
888 |
|
|
String AudioOutputDeviceAsio::Driver() { |
889 |
|
|
return Name(); |
890 |
|
|
} |
891 |
|
|
|
892 |
|
|
String AudioOutputDeviceAsio::Description() { |
893 |
|
|
return "Audio Streaming Input Output 2.2"; |
894 |
|
|
} |
895 |
|
|
|
896 |
|
|
String AudioOutputDeviceAsio::Version() { |
897 |
|
|
String s = "$Revision: 1.1 $"; |
898 |
|
|
return s.substr(11, s.size() - 13); // cut dollar signs, spaces and CVS macro keyword |
899 |
|
|
} |
900 |
|
|
|
901 |
|
|
} // namespace LinuxSampler |