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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 - 2008 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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|
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#include "AudioOutputDeviceAsio.h" |
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#include "AudioOutputDeviceFactory.h" |
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|
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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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|
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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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|
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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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|
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// ASIOGetChannels() |
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long numInputChannels; |
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long numOutputChannels; |
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|
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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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|
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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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|
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// ASIOOutputReady() |
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bool ASIOOutputReadySupported; |
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|
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// ASIOGetLatencies () |
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long inputLatency; |
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long outputLatency; |
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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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static bool asioDriverOpened = false; |
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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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|
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namespace LinuxSampler { |
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|
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// callback prototypes |
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|
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ASIOCallbacks asioCallbacks; |
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ASIOBufferInfo bufferInfos[2]; |
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AudioOutputDeviceAsio *GlobalAudioOutputDeviceAsioThisPtr; |
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|
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template<int bitres> |
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static void floatToASIOSTInt32LSBXX(float *in, void *dest, int numSamples) { |
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double pos_max_value = (1 << bitres) -1.0; |
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double neg_max_value = -pos_max_value; |
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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] * pos_max_value; |
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if (sample_point < neg_max_value) sample_point = neg_max_value; |
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if (sample_point > pos_max_value) sample_point = pos_max_value; |
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out[i] = (int16_t)sample_point; |
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} |
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} |
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|
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static 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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|
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static 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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|
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std::vector<String> getAsioDriverNames(); |
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|
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static bool ASIO_loadAsioDriver(char *name) |
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{ |
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dmsg(2,("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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|
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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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|
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ASIOChannelInfo channelInfos; |
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ASIOError asioError; |
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|
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// call this function in order to fill the internal vector containing the list of ASIO cards |
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// since the reading of the list is performed only one time subsequent calls to this function will be automatically ignored |
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// calling getAsioDriverNames() is needed in the case of a LinuxSampler client application first creating an ASIO device |
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// which calls ASIO_OpenAndQueryDeviceInfo() and afterwards retrieve the list of available ASIO cards |
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// since getAsioDriverNames() unloads the current driver and loads the driver 'dummy' this would cause |
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// the audio stopping and forcing the create the audio output device again |
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getAsioDriverNames(); |
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|
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dmsg(2,("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(2,("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(2,("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(2,("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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|
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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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|
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/* MUST BE CHECKED : to force fragments loading on Mac */ |
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//ASIO_loadAsioDriver("dummy"); |
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|
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dmsg(2,("Before ASIO_loadAsioDriver('%s')\n",driverName)); |
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if ( !ASIO_loadAsioDriver(driverName) ) { |
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dmsg(2,("ASIO_OpenAndQueryDeviceInfo could not loadAsioDriver %s\n", driverName)); |
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return -1; |
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} |
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dmsg(2,("Before ASIOInit()\n")); |
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if( (asioError = ASIOInit(asioDriverInfo)) != ASE_OK ) { |
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dmsg(2,("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(2,("Before ASIOGetChannels()\n")); |
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if( (asioError = ASIOGetChannels(&driverInfo->numInputChannels, &driverInfo->numOutputChannels) != ASE_OK)) { |
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dmsg(2,("ASIO_OpenAndQueryDeviceInfo could not ASIOGetChannels for %s\n", driverName)); |
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return asioError; |
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} |
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|
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dmsg(2,("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(2,("ASIO_OpenAndQueryDeviceInfo could not ASIOGetBufferSize for %s\n", driverName)); |
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return asioError; |
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} |
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|
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dmsg(2,("ASIO_OpenAndQueryDeviceInfo: InputChannels = %d\n", driverInfo->numInputChannels )); |
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dmsg(2,("ASIO_OpenAndQueryDeviceInfo: OutputChannels = %d\n", driverInfo->numOutputChannels )); |
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|
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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(2,("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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|
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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(2,("channelInfos[%d].type (sampleformat) = %d\n", i, driverInfo->channelInfos[i].type)); |
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} |
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|
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dmsg(2,("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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|
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|
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std::vector<String> getAsioDriverNames() { |
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|
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char* names[ASIO_MAX_DEVICE_INFO]; |
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int numDrivers; |
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|
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if(asioDriverListLoaded) { |
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dmsg(2,("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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|
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/* MUST BE CHECKED : to force fragments loading on Mac */ |
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ASIO_loadAsioDriver("dummy"); |
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|
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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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|
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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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|
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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(2,("getAsioDriverNames: numDrivers=%d\n",numDrivers)); |
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|
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for (int i = 0 ; i < numDrivers ; i++) { |
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dmsg(2,("ASIO DRIVERLIST: i=%d name='%s'\n",i,names[i])); |
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|
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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(2,("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(2,("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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} |
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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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|
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dmsg(2,("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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|
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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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|
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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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|
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|
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ASIOTime* AudioOutputDeviceAsio::bufferSwitchTimeInfo(ASIOTime *timeInfo, long index, ASIOBool processNow) |
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{ |
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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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|
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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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|
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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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|
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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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|
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// TODO: ignore for now. get the system reference time |
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// asioDriverInfo.sysRefTime = get_sys_reference_time(); |
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|
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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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|
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// tell LinuxSampler to render a fragment of buffSize samples |
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GlobalAudioOutputDeviceAsioThisPtr->RenderAudio(buffSize); |
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|
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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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floatToASIOSTInt16LSB(GlobalAudioOutputDeviceAsioThisPtr->Channels[i]->Buffer(), |
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(int16_t *)asioDriverInfo.bufferInfos[i].buffers[index], buffSize); |
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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: |
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floatToASIOSTInt32LSB(GlobalAudioOutputDeviceAsioThisPtr->Channels[i]->Buffer(), |
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(int32_t *)asioDriverInfo.bufferInfos[i].buffers[index], buffSize); |
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break; |
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case ASIOSTFloat32LSB: // IEEE 754 32 bit float, as found on Intel x86 architecture |
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throw AudioOutputException(String("ASIO Error: ASIOSTFloat32LSB not yet supported! report to LinuxSampler developers.") ); |
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break; |
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case ASIOSTFloat64LSB: // IEEE 754 64 bit double float, as found on Intel x86 architecture |
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throw AudioOutputException(String("ASIO Error: ASIOSTFloat64LSB not yet supported! report to LinuxSampler developers.") ); |
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break; |
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|
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// these are used for 32 bit data buffer, with different alignment of the data inside |
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// 32 bit PCI bus systems can more easily used with these |
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case ASIOSTInt32LSB16: // 32 bit data with 16 bit alignment |
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floatToASIOSTInt32LSBXX<16>( GlobalAudioOutputDeviceAsioThisPtr->Channels[i]->Buffer(), |
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(int32_t *)asioDriverInfo.bufferInfos[i].buffers[index], buffSize); |
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break; |
398 |
case ASIOSTInt32LSB18: // 32 bit data with 18 bit alignment |
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floatToASIOSTInt32LSBXX<18>( GlobalAudioOutputDeviceAsioThisPtr->Channels[i]->Buffer(), |
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(int32_t *)asioDriverInfo.bufferInfos[i].buffers[index], buffSize); |
401 |
break; |
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case ASIOSTInt32LSB20: // 32 bit data with 20 bit alignment |
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floatToASIOSTInt32LSBXX<20>( GlobalAudioOutputDeviceAsioThisPtr->Channels[i]->Buffer(), |
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(int32_t *)asioDriverInfo.bufferInfos[i].buffers[index], buffSize); |
405 |
break; |
406 |
case ASIOSTInt32LSB24: // 32 bit data with 24 bit alignment |
407 |
floatToASIOSTInt32LSBXX<24>( GlobalAudioOutputDeviceAsioThisPtr->Channels[i]->Buffer(), |
408 |
(int32_t *)asioDriverInfo.bufferInfos[i].buffers[index], buffSize); |
409 |
break; |
410 |
case ASIOSTInt16MSB: |
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throw AudioOutputException(String("ASIO Error: ASIOSTInt16MSB not yet supported! report to LinuxSampler developers.") ); |
412 |
break; |
413 |
case ASIOSTInt24MSB: // used for 20 bits as well |
414 |
throw AudioOutputException(String("ASIO Error: ASIOSTInt24MSB not yet supported! report to LinuxSampler developers.") ); |
415 |
break; |
416 |
case ASIOSTInt32MSB: |
417 |
throw AudioOutputException(String("ASIO Error: ASIOSTInt32MSB not yet supported! report to LinuxSampler developers.") ); |
418 |
break; |
419 |
case ASIOSTFloat32MSB: // IEEE 754 32 bit float, as found on bigendian architecture |
420 |
throw AudioOutputException(String("ASIO Error: ASIOSTFloat32MSB not yet supported! report to LinuxSampler developers.") ); |
421 |
break; |
422 |
case ASIOSTFloat64MSB: // IEEE 754 64 bit double float, as found on bigendian architecture |
423 |
throw AudioOutputException(String("ASIO Error: ASIOSTFloat64MSB not yet supported! report to LinuxSampler developers.") ); |
424 |
break; |
425 |
|
426 |
// these are used for 32 bit data buffer, with different alignment of the data inside |
427 |
// 32 bit PCI bus systems can more easily used with these |
428 |
case ASIOSTInt32MSB16: // 32 bit data with 18 bit alignment |
429 |
throw AudioOutputException(String("ASIO Error: ASIOSTInt32MSB16 not yet supported! report to LinuxSampler developers.") ); |
430 |
break; |
431 |
case ASIOSTInt32MSB18: // 32 bit data with 18 bit alignment |
432 |
throw AudioOutputException(String("ASIO Error: ASIOSTInt32MSB18 not yet supported! report to LinuxSampler developers.") ); |
433 |
break; |
434 |
case ASIOSTInt32MSB20: // 32 bit data with 20 bit alignment |
435 |
throw AudioOutputException(String("ASIO Error: ASIOSTInt32MSB20 not yet supported! report to LinuxSampler developers.") ); |
436 |
break; |
437 |
case ASIOSTInt32MSB24: // 32 bit data with 24 bit alignment |
438 |
throw AudioOutputException(String("ASIO Error: ASIOSTInt32MSB24 not yet supported! report to LinuxSampler developers.") ); |
439 |
break; |
440 |
default: |
441 |
throw AudioOutputException(String("ASIO Error: unknown ASIOST sample format. report error.") ); |
442 |
break; |
443 |
} |
444 |
} |
445 |
|
446 |
// finally if the driver supports the ASIOOutputReady() optimization, do it here, all data are in place |
447 |
if (asioDriverInfo.ASIOOutputReadySupported) |
448 |
ASIOOutputReady(); |
449 |
|
450 |
processedSamples += buffSize; |
451 |
return 0L; |
452 |
} |
453 |
|
454 |
void AudioOutputDeviceAsio::bufferSwitch(long index, ASIOBool processNow) |
455 |
{ |
456 |
// the actual processing callback. |
457 |
// as this is a "back door" into the bufferSwitchTimeInfo a timeInfo needs to be created |
458 |
// though it will only set the timeInfo.samplePosition and timeInfo.systemTime fields and the according flags |
459 |
ASIOTime timeInfo; |
460 |
memset (&timeInfo, 0, sizeof (timeInfo)); |
461 |
|
462 |
// get the time stamp of the buffer, not necessary if no |
463 |
// synchronization to other media is required |
464 |
if(ASIOGetSamplePosition(&timeInfo.timeInfo.samplePosition, &timeInfo.timeInfo.systemTime) == ASE_OK) |
465 |
timeInfo.timeInfo.flags = kSystemTimeValid | kSamplePositionValid; |
466 |
|
467 |
bufferSwitchTimeInfo (&timeInfo, index, processNow); |
468 |
} |
469 |
|
470 |
void sampleRateChanged(ASIOSampleRate sRate) |
471 |
{ |
472 |
// do whatever you need to do if the sample rate changed |
473 |
// usually this only happens during external sync. |
474 |
// Audio processing is not stopped by the driver, actual sample rate |
475 |
// might not have even changed, maybe only the sample rate status of an |
476 |
// AES/EBU or S/PDIF digital input at the audio device. |
477 |
// You might have to update time/sample related conversion routines, etc. |
478 |
} |
479 |
|
480 |
long asioMessages(long selector, long value, void* message, double* opt) |
481 |
{ |
482 |
dmsg(2,("asioMessages selector=%d value=%d\n",selector,value)); |
483 |
// currently the parameters "value", "message" and "opt" are not used. |
484 |
long ret = 0; |
485 |
switch(selector) |
486 |
{ |
487 |
case kAsioSelectorSupported: |
488 |
if(value == kAsioResetRequest |
489 |
|| value == kAsioEngineVersion |
490 |
|| value == kAsioResyncRequest |
491 |
|| value == kAsioLatenciesChanged |
492 |
// the following three were added for ASIO 2.0, we don't necessarily have to support them |
493 |
|| value == kAsioSupportsTimeInfo |
494 |
|| value == kAsioSupportsTimeCode |
495 |
|| value == kAsioSupportsInputMonitor) |
496 |
ret = 1L; |
497 |
break; |
498 |
case kAsioResetRequest: |
499 |
// defer the task and perform the reset of the driver during the next "safe" situation |
500 |
// You cannot reset the driver right now, as this code is called from the driver. |
501 |
// Reset the driver is done by completely destruct is. I.e. ASIOStop(), ASIODisposeBuffers(), Destruction |
502 |
// Afterwards you initialize the driver again. |
503 |
//GlobalAudioOutputDeviceAsioThisPtr->asioDriverInfo.stopped; // In this sample the processing will just stop |
504 |
ret = 1L; |
505 |
break; |
506 |
case kAsioResyncRequest: |
507 |
// This informs the application, that the driver encountered some non fatal data loss. |
508 |
// It is used for synchronization purposes of different media. |
509 |
// Added mainly to work around the Win16Mutex problems in Windows 95/98 with the |
510 |
// Windows Multimedia system, which could loose data because the Mutex was hold too long |
511 |
// by another thread. |
512 |
// However a driver can issue it in other situations, too. |
513 |
ret = 1L; |
514 |
break; |
515 |
case kAsioLatenciesChanged: |
516 |
// This will inform the host application that the drivers were latencies changed. |
517 |
// Beware, it this does not mean that the buffer sizes have changed! |
518 |
// You might need to update internal delay data. |
519 |
ret = 1L; |
520 |
break; |
521 |
case kAsioEngineVersion: |
522 |
// return the supported ASIO version of the host application |
523 |
// If a host applications does not implement this selector, ASIO 1.0 is assumed |
524 |
// by the driver |
525 |
ret = 2L; |
526 |
break; |
527 |
case kAsioSupportsTimeInfo: |
528 |
// informs the driver wether the asioCallbacks.bufferSwitchTimeInfo() callback |
529 |
// is supported. |
530 |
// For compatibility with ASIO 1.0 drivers the host application should always support |
531 |
// the "old" bufferSwitch method, too. |
532 |
ret = 1; |
533 |
break; |
534 |
case kAsioSupportsTimeCode: |
535 |
// informs the driver wether application is interested in time code info. |
536 |
// If an application does not need to know about time code, the driver has less work |
537 |
// to do. |
538 |
ret = 0; |
539 |
break; |
540 |
} |
541 |
return ret; |
542 |
} |
543 |
|
544 |
|
545 |
// *************** ParameterCard *************** |
546 |
// * |
547 |
|
548 |
AudioOutputDeviceAsio::ParameterCard::ParameterCard() : DeviceCreationParameterString() { |
549 |
InitWithDefault(); // use default card |
550 |
} |
551 |
|
552 |
AudioOutputDeviceAsio::ParameterCard::ParameterCard(String s) throw (Exception) : DeviceCreationParameterString(s) { |
553 |
} |
554 |
|
555 |
String AudioOutputDeviceAsio::ParameterCard::Description() { |
556 |
return "Sound card to be used"; |
557 |
} |
558 |
|
559 |
bool AudioOutputDeviceAsio::ParameterCard::Fix() { |
560 |
return true; |
561 |
} |
562 |
|
563 |
bool AudioOutputDeviceAsio::ParameterCard::Mandatory() { |
564 |
return false; |
565 |
} |
566 |
|
567 |
std::map<String,DeviceCreationParameter*> AudioOutputDeviceAsio::ParameterCard::DependsAsParameters() { |
568 |
return std::map<String,DeviceCreationParameter*>(); // no dependencies |
569 |
} |
570 |
|
571 |
optional<String> AudioOutputDeviceAsio::ParameterCard::DefaultAsString(std::map<String,String> Parameters) { |
572 |
|
573 |
std::vector<String> cards = PossibilitiesAsString(Parameters); |
574 |
if (cards.empty()) throw Exception("AudioOutputDeviceAsio: Can't find any card"); |
575 |
dmsg(2,("AudioOutputDeviceAsio::ParameterCard::DefaultAsString='%s'\n",cards[0].c_str() )); |
576 |
|
577 |
// if currentAsioDriverName is empty then return the first card |
578 |
// otherwise return the currentAsioDriverName. this avoids closing the current ASIO driver |
579 |
// when the LSCP client calls commands like GET AUDIO_OUTPUT_DRIVER_PARAMETER INFO ASIO CARD |
580 |
// which would load the default card (without this check it would always be the same which would cause the above problem) |
581 |
if( currentAsioDriverName == "" ) { |
582 |
return cards[0]; // first card by default |
583 |
} |
584 |
else { |
585 |
return currentAsioDriverName; |
586 |
} |
587 |
|
588 |
} |
589 |
|
590 |
std::vector<String> AudioOutputDeviceAsio::ParameterCard::PossibilitiesAsString(std::map<String,String> Parameters) { |
591 |
dmsg(2,("AudioOutputDeviceAsio::ParameterCard::PossibilitiesAsString:\n")); |
592 |
return getAsioDriverNames(); |
593 |
} |
594 |
|
595 |
void AudioOutputDeviceAsio::ParameterCard::OnSetValue(String s) throw (Exception) { |
596 |
// not posssible, as parameter is fix |
597 |
} |
598 |
|
599 |
String AudioOutputDeviceAsio::ParameterCard::Name() { |
600 |
return "CARD"; |
601 |
} |
602 |
|
603 |
|
604 |
|
605 |
// *************** ParameterSampleRate *************** |
606 |
// * |
607 |
|
608 |
AudioOutputDeviceAsio::ParameterSampleRate::ParameterSampleRate() : AudioOutputDevice::ParameterSampleRate::ParameterSampleRate() { |
609 |
} |
610 |
|
611 |
AudioOutputDeviceAsio::ParameterSampleRate::ParameterSampleRate(String s) : AudioOutputDevice::ParameterSampleRate::ParameterSampleRate(s) { |
612 |
} |
613 |
|
614 |
std::map<String,DeviceCreationParameter*> AudioOutputDeviceAsio::ParameterSampleRate::DependsAsParameters() { |
615 |
static ParameterCard card; |
616 |
std::map<String,DeviceCreationParameter*> dependencies; |
617 |
dependencies[card.Name()] = &card; |
618 |
return dependencies; |
619 |
} |
620 |
|
621 |
optional<int> AudioOutputDeviceAsio::ParameterSampleRate::DefaultAsInt(std::map<String,String> Parameters) { |
622 |
if (!Parameters.count("CARD")) { |
623 |
dmsg(2,("AudioOutputDeviceAsio::ParameterSampleRate::DefaultAsInt returning optional<int>::nothing (parameter CARD not supplied)\n")); |
624 |
return optional<int>::nothing; |
625 |
} |
626 |
|
627 |
// return the default samplerate. first try 44100 then 48000, then the first samplerate found in the list |
628 |
ParameterCard card(Parameters["CARD"]); |
629 |
if( ASIO_OpenAndQueryDeviceInfo((char *)card.ValueAsString().c_str(), &asioDriverInfo, &MyAsioDriverInfo) != ASE_OK) { |
630 |
throw AudioOutputException(String("Error: ASIO Initalization Error") ); |
631 |
} |
632 |
for(int i = 0 ; i < asioDriverInfo.sampleRates.size() ; i++) { |
633 |
if(asioDriverInfo.sampleRates[i] == 44100) { |
634 |
return 44100; |
635 |
dmsg(2,("AudioOutputDeviceAsio::ParameterSampleRate::DefaultAsInt returning 44100\n")); |
636 |
} |
637 |
if(asioDriverInfo.sampleRates[i] == 48000) { |
638 |
dmsg(2,("AudioOutputDeviceAsio::ParameterSampleRate::DefaultAsInt returning 48000\n")); |
639 |
return 48000; |
640 |
} |
641 |
} |
642 |
dmsg(2,("AudioOutputDeviceAsio::ParameterSampleRate::DefaultAsInt returning %d\n",asioDriverInfo.sampleRates[0])); |
643 |
return asioDriverInfo.sampleRates[0]; |
644 |
} |
645 |
|
646 |
std::vector<int> AudioOutputDeviceAsio::ParameterSampleRate::PossibilitiesAsInt(std::map<String,String> Parameters) { |
647 |
dmsg(2,("AudioOutputDeviceAsio::ParameterSampleRate::PossibilitiesAsInt\n")); |
648 |
if (!Parameters.count("CARD")) { |
649 |
dmsg(2,("AudioOutputDeviceAsio::ParameterSampleRate::PossibilitiesAsInt returning empty vector (parameter CARD not supplied)\n")); |
650 |
return std::vector<int>(); |
651 |
} |
652 |
|
653 |
ParameterCard card(Parameters["CARD"]); |
654 |
if( ASIO_OpenAndQueryDeviceInfo((char *)card.ValueAsString().c_str(), &asioDriverInfo, &MyAsioDriverInfo) != ASE_OK) { |
655 |
throw AudioOutputException(String("Error: ASIO Initalization Error") ); |
656 |
} |
657 |
|
658 |
for(int i=0;i<asioDriverInfo.sampleRates.size();i++) { |
659 |
dmsg(2,("AudioOutputDeviceAsio::ParameterSampleRate::PossibilitiesAsInt samplerate[%d]=%d\n",i,asioDriverInfo.sampleRates[i])); |
660 |
} |
661 |
|
662 |
return asioDriverInfo.sampleRates; |
663 |
} |
664 |
|
665 |
|
666 |
|
667 |
// *************** ParameterChannels *************** |
668 |
// * |
669 |
|
670 |
AudioOutputDeviceAsio::ParameterChannels::ParameterChannels() : AudioOutputDevice::ParameterChannels::ParameterChannels() { |
671 |
//InitWithDefault(); |
672 |
// could not determine default value? ... |
673 |
//if (ValueAsInt() == 0) SetValue(2); // ... then (try) a common value |
674 |
} |
675 |
|
676 |
AudioOutputDeviceAsio::ParameterChannels::ParameterChannels(String s) : AudioOutputDevice::ParameterChannels::ParameterChannels(s) { |
677 |
} |
678 |
|
679 |
std::map<String,DeviceCreationParameter*> AudioOutputDeviceAsio::ParameterChannels::DependsAsParameters() { |
680 |
static ParameterCard card; |
681 |
std::map<String,DeviceCreationParameter*> dependencies; |
682 |
dependencies[card.Name()] = &card; |
683 |
return dependencies; |
684 |
} |
685 |
|
686 |
optional<int> AudioOutputDeviceAsio::ParameterChannels::DefaultAsInt(std::map<String,String> Parameters) { |
687 |
dmsg(2,("AudioOutputDeviceAsio::ParameterChannels::DefaultAsInt\n")); |
688 |
if (!Parameters.count("CARD")) { |
689 |
dmsg(2,("AudioOutputDeviceAsio::ParameterChannels::DefaultAsInt returning optional<int>::nothing (CARD parameter not supplied)\n")); |
690 |
return optional<int>::nothing; |
691 |
} |
692 |
|
693 |
ParameterCard card(Parameters["CARD"]); |
694 |
if( ASIO_OpenAndQueryDeviceInfo((char *)card.ValueAsString().c_str(), &asioDriverInfo, &MyAsioDriverInfo) != ASE_OK) { |
695 |
throw AudioOutputException(String("Error: ASIO Initialization Error") ); |
696 |
} |
697 |
dmsg(2,("AudioOutputDeviceAsio::ParameterChannels::DefaultAsInt returning %d\n",asioDriverInfo.numOutputChannels)); |
698 |
return asioDriverInfo.numOutputChannels; |
699 |
} |
700 |
|
701 |
optional<int> AudioOutputDeviceAsio::ParameterChannels::RangeMinAsInt(std::map<String,String> Parameters) { |
702 |
dmsg(2,("AudioOutputDeviceAsio::ParameterChannels::RangeMinAsInt!\n")); |
703 |
if (!Parameters.count("CARD")) { |
704 |
dmsg(2,("AudioOutputDeviceAsio::ParameterChannels::RangeMinAsInt returning optional<int>::nothing (CARD parameter not supplied)\n")); |
705 |
return optional<int>::nothing; |
706 |
} |
707 |
dmsg(2,("AudioOutputDeviceAsio::ParameterChannels::RangeMinAsInt returning 1\n")); |
708 |
return 1; |
709 |
} |
710 |
|
711 |
optional<int> AudioOutputDeviceAsio::ParameterChannels::RangeMaxAsInt(std::map<String,String> Parameters) { |
712 |
dmsg(2,("AudioOutputDeviceAsio::ParameterChannels::RangeMaxAsInt!\n")); |
713 |
if (!Parameters.count("CARD")) { |
714 |
dmsg(2,("AudioOutputDeviceAsio::ParameterChannels::RangeMaxAsInt returning optional<int>::nothing (CARD parameter not supplied)\n")); |
715 |
return optional<int>::nothing; |
716 |
} |
717 |
|
718 |
ParameterCard card(Parameters["CARD"]); |
719 |
if( ASIO_OpenAndQueryDeviceInfo((char *)card.ValueAsString().c_str(), &asioDriverInfo, &MyAsioDriverInfo) != ASE_OK) { |
720 |
throw AudioOutputException(String("Error: ASIO Init Error") ); |
721 |
} |
722 |
dmsg(2,("AudioOutputDeviceAsio::ParameterChannels::RangeMaxAsInt returning %d\n",asioDriverInfo.numOutputChannels)); |
723 |
return asioDriverInfo.numOutputChannels; |
724 |
} |
725 |
|
726 |
|
727 |
|
728 |
// *************** ParameterFragmentSize *************** |
729 |
// * |
730 |
|
731 |
AudioOutputDeviceAsio::ParameterFragmentSize::ParameterFragmentSize() : DeviceCreationParameterInt() { |
732 |
InitWithDefault(); |
733 |
} |
734 |
|
735 |
AudioOutputDeviceAsio::ParameterFragmentSize::ParameterFragmentSize(String s) throw (Exception) : DeviceCreationParameterInt(s) { |
736 |
} |
737 |
|
738 |
String AudioOutputDeviceAsio::ParameterFragmentSize::Description() { |
739 |
return "Size of each buffer fragment"; |
740 |
} |
741 |
|
742 |
bool AudioOutputDeviceAsio::ParameterFragmentSize::Fix() { |
743 |
return true; |
744 |
} |
745 |
|
746 |
bool AudioOutputDeviceAsio::ParameterFragmentSize::Mandatory() { |
747 |
return false; |
748 |
} |
749 |
|
750 |
std::map<String,DeviceCreationParameter*> AudioOutputDeviceAsio::ParameterFragmentSize::DependsAsParameters() { |
751 |
static ParameterCard card; |
752 |
std::map<String,DeviceCreationParameter*> dependencies; |
753 |
dependencies[card.Name()] = &card; |
754 |
return dependencies; |
755 |
} |
756 |
|
757 |
optional<int> AudioOutputDeviceAsio::ParameterFragmentSize::DefaultAsInt(std::map<String,String> Parameters) { |
758 |
dmsg(2,("AudioOutputDeviceAsio::ParameterFragmentSize::DefaultAsInt!\n")); |
759 |
if (!Parameters.count("CARD")) { |
760 |
dmsg(2,("AudioOutputDeviceAsio::ParameterFragmentSize::DefaultAsInt returning optional<int>::nothing (no CARD parameter supplied\n")); |
761 |
return optional<int>::nothing; |
762 |
} |
763 |
|
764 |
ParameterCard card(Parameters["CARD"]); |
765 |
if( ASIO_OpenAndQueryDeviceInfo((char *)card.ValueAsString().c_str(), &asioDriverInfo, &MyAsioDriverInfo) != ASE_OK) { |
766 |
throw AudioOutputException(String("Error: ASIO Initialization Error") ); |
767 |
} |
768 |
dmsg(2,("AudioOutputDeviceAsio::ParameterFragmentSize::DefaultAsInt returning %d\n",asioDriverInfo.preferredBufSize)); |
769 |
return asioDriverInfo.preferredBufSize; |
770 |
} |
771 |
|
772 |
optional<int> AudioOutputDeviceAsio::ParameterFragmentSize::RangeMinAsInt(std::map<String,String> Parameters) { |
773 |
dmsg(2,("AudioOutputDeviceAsio::ParameterFragmentSize::RangeMinAsInt!\n")); |
774 |
if (!Parameters.count("CARD")) { |
775 |
dmsg(2,("AudioOutputDeviceAsio::ParameterFragmentSize::RangeMinAsInt returning optional<int>::nothing (no CARD parameter supplied\n")); |
776 |
return optional<int>::nothing; |
777 |
} |
778 |
|
779 |
ParameterCard card(Parameters["CARD"]); |
780 |
if( ASIO_OpenAndQueryDeviceInfo((char *)card.ValueAsString().c_str(), &asioDriverInfo, &MyAsioDriverInfo) != ASE_OK) { |
781 |
throw AudioOutputException(String("Error: ASIO Initalization Error") ); |
782 |
} |
783 |
dmsg(2,("AudioOutputDeviceAsio::ParameterFragmentSize::RangeMinAsInt returning %d\n",asioDriverInfo.minBufSize)); |
784 |
return asioDriverInfo.minBufSize; |
785 |
} |
786 |
|
787 |
optional<int> AudioOutputDeviceAsio::ParameterFragmentSize::RangeMaxAsInt(std::map<String,String> Parameters) { |
788 |
dmsg(2,("AudioOutputDeviceAsio::ParameterFragmentSize::RangeMaxAsInt!\n")); |
789 |
if (!Parameters.count("CARD")) { |
790 |
dmsg(2,("AudioOutputDeviceAsio::ParameterFragmentSize::RangeMaxAsInt returning optional<int>::nothing (no CARD parameter supplied\n")); |
791 |
return optional<int>::nothing; |
792 |
} |
793 |
|
794 |
ParameterCard card(Parameters["CARD"]); |
795 |
if( ASIO_OpenAndQueryDeviceInfo((char *)card.ValueAsString().c_str(), &asioDriverInfo, &MyAsioDriverInfo) != ASE_OK) { |
796 |
throw AudioOutputException(String("Error: ASIO Initialization Error") ); |
797 |
} |
798 |
dmsg(2,("AudioOutputDeviceAsio::ParameterFragmentSize::RangeMaxAsInt returning %d\n",asioDriverInfo.maxBufSize)); |
799 |
return asioDriverInfo.maxBufSize; |
800 |
} |
801 |
|
802 |
std::vector<int> AudioOutputDeviceAsio::ParameterFragmentSize::PossibilitiesAsInt(std::map<String,String> Parameters) { |
803 |
dmsg(2,("AudioOutputDeviceAsio::ParameterFragmentSize::PossibilitiesAsInt!\n")); |
804 |
return std::vector<int>(); |
805 |
} |
806 |
|
807 |
void AudioOutputDeviceAsio::ParameterFragmentSize::OnSetValue(int i) throw (Exception) { |
808 |
// not posssible, as parameter is fix |
809 |
} |
810 |
|
811 |
String AudioOutputDeviceAsio::ParameterFragmentSize::Name() { |
812 |
return "FRAGMENTSIZE"; |
813 |
} |
814 |
|
815 |
|
816 |
|
817 |
// *************** AudioOutputDeviceAsio *************** |
818 |
// * |
819 |
|
820 |
/** |
821 |
* Create and initialize Asio audio output device with given parameters. |
822 |
* |
823 |
* @param Parameters - optional parameters |
824 |
* @throws AudioOutputException if output device cannot be opened |
825 |
*/ |
826 |
AudioOutputDeviceAsio::AudioOutputDeviceAsio(std::map<String,DeviceCreationParameter*> Parameters) : AudioOutputDevice(Parameters) { |
827 |
if(AudioOutputDeviceAsioInstantiated) throw Exception("AudioOutputDeviceAsio: Sorry, only one ASIO card at time can be opened"); |
828 |
AudioOutputDeviceAsioInstantiated = true; |
829 |
asioDriverOpened = false; |
830 |
this->uiAsioChannels = ((DeviceCreationParameterInt*)Parameters["CHANNELS"])->ValueAsInt(); |
831 |
this->uiSamplerate = ((DeviceCreationParameterInt*)Parameters["SAMPLERATE"])->ValueAsInt(); |
832 |
this->FragmentSize = ((DeviceCreationParameterInt*)Parameters["FRAGMENTSIZE"])->ValueAsInt(); |
833 |
String Card = ((DeviceCreationParameterString*)Parameters["CARD"])->ValueAsString(); |
834 |
|
835 |
|
836 |
dmsg(2,("AudioOutputDeviceAsio::AudioOutputDeviceAsio constructor\n")); |
837 |
|
838 |
asioIsPlaying = false; |
839 |
|
840 |
ASIO_OpenAndQueryDeviceInfo((char *)Card.c_str(), &asioDriverInfo, &MyAsioDriverInfo); |
841 |
dmsg(2,("AudioOutputDeviceAsio::AudioOutputDeviceAsio: after ASIO_OpenAndQueryDeviceInfo\n")); |
842 |
|
843 |
if( ASIOSetSampleRate(uiSamplerate) != ASE_OK ) { |
844 |
throw AudioOutputException(String("Error: ASIOSetSampleRate: cannot set samplerate. ") ); |
845 |
} |
846 |
dmsg(2,("AudioOutputDeviceAsio::AudioOutputDeviceAsio: after ASIOSetSampleRate\n")); |
847 |
|
848 |
if(ASIOOutputReady() == ASE_OK) asioDriverInfo.ASIOOutputReadySupported = true; |
849 |
else asioDriverInfo.ASIOOutputReadySupported = false; |
850 |
dmsg(2,("AudioOutputDeviceAsio::AudioOutputDeviceAsio: after ASIOOutputReady\n")); |
851 |
|
852 |
asioDriverInfo.numInputBuffers = 0; |
853 |
asioDriverInfo.numOutputBuffers = uiAsioChannels; |
854 |
asioDriverInfo.chosenBufSize = FragmentSize; |
855 |
|
856 |
for( int i = 0 ; i < uiAsioChannels ; i++) { |
857 |
asioDriverInfo.bufferInfos[i].isInput = ASIOFalse; |
858 |
asioDriverInfo.bufferInfos[i].channelNum = i; |
859 |
} |
860 |
|
861 |
asioCallbacks.bufferSwitch = &bufferSwitch; |
862 |
asioCallbacks.sampleRateDidChange = &sampleRateChanged; |
863 |
asioCallbacks.asioMessage = &asioMessages; |
864 |
asioCallbacks.bufferSwitchTimeInfo = &bufferSwitchTimeInfo; |
865 |
|
866 |
if ( ASIOCreateBuffers(asioDriverInfo.bufferInfos, asioDriverInfo.numOutputBuffers, asioDriverInfo.chosenBufSize = FragmentSize, &asioCallbacks) != ASE_OK ){ |
867 |
throw AudioOutputException(String("AudioOutputDeviceAsio: Error: ASIOCreateBuffers failed.") ); |
868 |
} |
869 |
dmsg(2,("AudioOutputDeviceAsio::AudioOutputDeviceAsio: after ASIOCreateBuffers\n")); |
870 |
|
871 |
// create audio channels for this audio device to which the sampler engines can write to |
872 |
for (int i = 0; i < uiAsioChannels; i++) this->Channels.push_back(new AudioChannel(i, FragmentSize)); |
873 |
|
874 |
// FIXME: temporary global variable used to store the this pointer for the ASIO callbacks wanting to access the AudioOutputDeviceAsio methods |
875 |
GlobalAudioOutputDeviceAsioThisPtr = this; |
876 |
|
877 |
if (((DeviceCreationParameterBool*)Parameters["ACTIVE"])->ValueAsBool()) { |
878 |
Play(); |
879 |
} |
880 |
} |
881 |
|
882 |
AudioOutputDeviceAsio::~AudioOutputDeviceAsio() { |
883 |
ASIOExit(); |
884 |
asioDriverOpened = false; |
885 |
AudioOutputDeviceAsioInstantiated = false; |
886 |
} |
887 |
|
888 |
void AudioOutputDeviceAsio::Play() { |
889 |
dmsg(2,("AudioOutputDeviceAsio::Play() !\n")); |
890 |
if ( ASIOStart() != ASE_OK ){ |
891 |
asioIsPlaying = false; |
892 |
throw AudioOutputException(String("AudioOutputDeviceAsio: Error: ASIOStart failed.") ); |
893 |
} |
894 |
else asioIsPlaying = true; |
895 |
} |
896 |
|
897 |
bool AudioOutputDeviceAsio::IsPlaying() { |
898 |
return asioIsPlaying; |
899 |
} |
900 |
|
901 |
void AudioOutputDeviceAsio::Stop() { |
902 |
dmsg(2,("AudioOutputDeviceAsio::Stop() !\n")); |
903 |
ASIOStop(); |
904 |
asioIsPlaying = false; |
905 |
} |
906 |
|
907 |
AudioChannel* AudioOutputDeviceAsio::CreateChannel(uint ChannelNr) { |
908 |
dmsg(2,("AudioOutputDeviceAsio::CreateChannel value=%d uiAsioChannels=%d\n",ChannelNr,uiAsioChannels)); |
909 |
// just create a mix channel |
910 |
return new AudioChannel(ChannelNr, Channel(ChannelNr % uiAsioChannels)); |
911 |
} |
912 |
|
913 |
uint AudioOutputDeviceAsio::MaxSamplesPerCycle() { |
914 |
dmsg(2,("AudioOutputDeviceAsio::MaxSamplesPerCycle value=%d\n",FragmentSize)); |
915 |
return FragmentSize; |
916 |
} |
917 |
|
918 |
uint AudioOutputDeviceAsio::SampleRate() { |
919 |
dmsg(2,("AudioOutputDeviceAsio::SampleRate value=%d\n",uiSamplerate)); fflush(stdout); |
920 |
return uiSamplerate; |
921 |
} |
922 |
|
923 |
String AudioOutputDeviceAsio::Name() { |
924 |
return "ASIO"; |
925 |
} |
926 |
|
927 |
String AudioOutputDeviceAsio::Driver() { |
928 |
return Name(); |
929 |
} |
930 |
|
931 |
String AudioOutputDeviceAsio::Description() { |
932 |
return "Audio Streaming Input Output 2.2"; |
933 |
} |
934 |
|
935 |
String AudioOutputDeviceAsio::Version() { |
936 |
String s = "$Revision: 1.3 $"; |
937 |
return s.substr(11, s.size() - 13); // cut dollar signs, spaces and CVS macro keyword |
938 |
} |
939 |
|
940 |
} // namespace LinuxSampler |