ALSA backend (based on Dummy backend and zita-alsa-pcmi)
This commit is contained in:
parent
b517695256
commit
8e9b02cfa2
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@ -17,7 +17,7 @@ export ARDOUR_DATA_PATH=$TOP:$TOP/build:$TOP/gtk2_ardour:$TOP/build/gtk2_ardour:
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export ARDOUR_MIDIMAPS_PATH=$TOP/midi_maps:.
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export ARDOUR_MCP_PATH=$TOP/mcp:.
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export ARDOUR_EXPORT_FORMATS_PATH=$TOP/export:.
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export ARDOUR_BACKEND_PATH=$libs/backends/jack:$libs/backends/wavesaudio:$libs/backends/dummy
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export ARDOUR_BACKEND_PATH=$libs/backends/jack:$libs/backends/wavesaudio:$libs/backends/dummy:$libs/backends/alsa
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export ARDOUR_TEST_PATH=$libs/ardour/test/data
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#
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1445
libs/backends/alsa/alsa_audiobackend.cc
Normal file
1445
libs/backends/alsa/alsa_audiobackend.cc
Normal file
File diff suppressed because it is too large
Load Diff
365
libs/backends/alsa/alsa_audiobackend.h
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365
libs/backends/alsa/alsa_audiobackend.h
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@ -0,0 +1,365 @@
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/*
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* Copyright (C) 2014 Robin Gareus <robin@gareus.org>
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* Copyright (C) 2013 Paul Davis
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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., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef __libbackend_alsa_audiobackend_h__
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#define __libbackend_alsa_audiobackend_h__
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#include <string>
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#include <vector>
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#include <map>
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#include <set>
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#include <stdint.h>
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#include <pthread.h>
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#include <boost/shared_ptr.hpp>
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#include "ardour/types.h"
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#include "ardour/audio_backend.h"
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#include "zita-alsa-pcmi.h"
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namespace ARDOUR {
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class AlsaAudioBackend;
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class AlsaMidiEvent {
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public:
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AlsaMidiEvent (const pframes_t timestamp, const uint8_t* data, size_t size);
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AlsaMidiEvent (const AlsaMidiEvent& other);
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~AlsaMidiEvent ();
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size_t size () const { return _size; };
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pframes_t timestamp () const { return _timestamp; };
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const unsigned char* const_data () const { return _data; };
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unsigned char* data () { return _data; };
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bool operator< (const AlsaMidiEvent &other) const { return timestamp () < other.timestamp (); };
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private:
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size_t _size;
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pframes_t _timestamp;
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uint8_t *_data;
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};
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typedef std::vector<boost::shared_ptr<AlsaMidiEvent> > AlsaMidiBuffer;
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class AlsaPort {
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protected:
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AlsaPort (AlsaAudioBackend &b, const std::string&, PortFlags);
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public:
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virtual ~AlsaPort ();
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const std::string& name () const { return _name; }
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PortFlags flags () const { return _flags; }
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int set_name (const std::string &name) { _name = name; return 0; }
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virtual DataType type () const = 0;
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bool is_input () const { return flags () & IsInput; }
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bool is_output () const { return flags () & IsOutput; }
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bool is_physical () const { return flags () & IsPhysical; }
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bool is_terminal () const { return flags () & IsTerminal; }
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bool is_connected () const { return _connections.size () != 0; }
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bool is_connected (const AlsaPort *port) const;
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bool is_physically_connected () const;
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const std::vector<AlsaPort *>& get_connections () const { return _connections; }
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int connect (AlsaPort *port);
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int disconnect (AlsaPort *port);
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void disconnect_all ();
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virtual void* get_buffer (pframes_t nframes) = 0;
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const LatencyRange& latency_range (bool for_playback) const
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{
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return for_playback ? _playback_latency_range : _capture_latency_range;
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}
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void set_latency_range (const LatencyRange &latency_range, bool for_playback)
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{
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if (for_playback)
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{
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_playback_latency_range = latency_range;
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}
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else
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{
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_capture_latency_range = latency_range;
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}
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}
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private:
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AlsaAudioBackend &_alsa_backend;
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std::string _name;
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const PortFlags _flags;
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LatencyRange _capture_latency_range;
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LatencyRange _playback_latency_range;
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std::vector<AlsaPort*> _connections;
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void _connect (AlsaPort* , bool);
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void _disconnect (AlsaPort* , bool);
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}; // class AlsaPort
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class AlsaAudioPort : public AlsaPort {
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public:
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AlsaAudioPort (AlsaAudioBackend &b, const std::string&, PortFlags);
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~AlsaAudioPort ();
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DataType type () const { return DataType::AUDIO; };
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Sample* buffer () { return _buffer; }
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const Sample* const_buffer () const { return _buffer; }
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void* get_buffer (pframes_t nframes);
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private:
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Sample _buffer[8192];
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}; // class AlsaAudioPort
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class AlsaMidiPort : public AlsaPort {
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public:
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AlsaMidiPort (AlsaAudioBackend &b, const std::string&, PortFlags);
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~AlsaMidiPort ();
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DataType type () const { return DataType::MIDI; };
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void* get_buffer (pframes_t nframes);
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const AlsaMidiBuffer const_buffer () const { return _buffer; }
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private:
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AlsaMidiBuffer _buffer;
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}; // class AlsaMidiPort
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class AlsaAudioBackend : public AudioBackend {
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friend class AlsaPort;
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public:
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AlsaAudioBackend (AudioEngine& e, AudioBackendInfo& info);
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~AlsaAudioBackend ();
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/* AUDIOBACKEND API */
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std::string name () const;
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bool is_realtime () const;
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std::vector<DeviceStatus> enumerate_devices () const;
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std::vector<float> available_sample_rates (const std::string& device) const;
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std::vector<uint32_t> available_buffer_sizes (const std::string& device) const;
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uint32_t available_input_channel_count (const std::string& device) const;
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uint32_t available_output_channel_count (const std::string& device) const;
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bool can_change_sample_rate_when_running () const;
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bool can_change_buffer_size_when_running () const;
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int set_device_name (const std::string&);
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int set_sample_rate (float);
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int set_buffer_size (uint32_t);
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int set_interleaved (bool yn);
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int set_input_channels (uint32_t);
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int set_output_channels (uint32_t);
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int set_systemic_input_latency (uint32_t);
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int set_systemic_output_latency (uint32_t);
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/* Retrieving parameters */
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std::string device_name () const;
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float sample_rate () const;
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uint32_t buffer_size () const;
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bool interleaved () const;
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uint32_t input_channels () const;
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uint32_t output_channels () const;
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uint32_t systemic_input_latency () const;
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uint32_t systemic_output_latency () const;
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/* External control app */
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std::string control_app_name () const { return std::string (); }
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void launch_control_app () {}
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/* MIDI */
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std::vector<std::string> enumerate_midi_options () const;
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int set_midi_option (const std::string&);
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std::string midi_option () const;
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/* State Control */
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protected:
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int _start (bool for_latency_measurement);
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public:
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int stop ();
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int freewheel (bool);
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float dsp_load () const;
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size_t raw_buffer_size (DataType t);
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/* Process time */
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pframes_t sample_time ();
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pframes_t sample_time_at_cycle_start ();
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pframes_t samples_since_cycle_start ();
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int create_process_thread (boost::function<void()> func);
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int join_process_threads ();
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bool in_process_thread ();
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uint32_t process_thread_count ();
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void update_latencies ();
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/* PORTENGINE API */
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void* private_handle () const;
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const std::string& my_name () const;
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bool available () const;
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uint32_t port_name_size () const;
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int set_port_name (PortHandle, const std::string&);
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std::string get_port_name (PortHandle) const;
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PortHandle get_port_by_name (const std::string&) const;
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int get_ports (const std::string& port_name_pattern, DataType type, PortFlags flags, std::vector<std::string>&) const;
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DataType port_data_type (PortHandle) const;
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PortHandle register_port (const std::string& shortname, ARDOUR::DataType, ARDOUR::PortFlags);
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void unregister_port (PortHandle);
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int connect (const std::string& src, const std::string& dst);
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int disconnect (const std::string& src, const std::string& dst);
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int connect (PortHandle, const std::string&);
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int disconnect (PortHandle, const std::string&);
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int disconnect_all (PortHandle);
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bool connected (PortHandle, bool process_callback_safe);
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bool connected_to (PortHandle, const std::string&, bool process_callback_safe);
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bool physically_connected (PortHandle, bool process_callback_safe);
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int get_connections (PortHandle, std::vector<std::string>&, bool process_callback_safe);
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/* MIDI */
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int midi_event_get (pframes_t& timestamp, size_t& size, uint8_t** buf, void* port_buffer, uint32_t event_index);
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int midi_event_put (void* port_buffer, pframes_t timestamp, const uint8_t* buffer, size_t size);
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uint32_t get_midi_event_count (void* port_buffer);
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void midi_clear (void* port_buffer);
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/* Monitoring */
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bool can_monitor_input () const;
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int request_input_monitoring (PortHandle, bool);
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int ensure_input_monitoring (PortHandle, bool);
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bool monitoring_input (PortHandle);
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/* Latency management */
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void set_latency_range (PortHandle, bool for_playback, LatencyRange);
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LatencyRange get_latency_range (PortHandle, bool for_playback);
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/* Discovering physical ports */
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bool port_is_physical (PortHandle) const;
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void get_physical_outputs (DataType type, std::vector<std::string>&);
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void get_physical_inputs (DataType type, std::vector<std::string>&);
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ChanCount n_physical_outputs () const;
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ChanCount n_physical_inputs () const;
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/* Getting access to the data buffer for a port */
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void* get_buffer (PortHandle, pframes_t);
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void* main_process_thread ();
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private:
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std::string _instance_name;
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Alsa_pcmi *_pcmi;
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bool _running;
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bool _freewheeling;
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std::string _capture_device;
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std::string _playback_device;
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float _samplerate;
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size_t _samples_per_period;
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size_t _periods_per_cycle;
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float _dsp_load;
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static size_t _max_buffer_size;
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uint32_t _n_inputs;
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uint32_t _n_outputs;
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uint32_t _n_midi_inputs;
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uint32_t _n_midi_outputs;
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uint32_t _systemic_input_latency;
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uint32_t _systemic_output_latency;
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uint64_t _processed_samples;
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pthread_t _main_thread;
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/* process threads */
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static void* alsa_process_thread (void *);
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std::vector<pthread_t> _threads;
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struct ThreadData {
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AlsaAudioBackend* engine;
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boost::function<void ()> f;
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size_t stacksize;
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ThreadData (AlsaAudioBackend* e, boost::function<void ()> fp, size_t stacksz)
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: engine (e) , f (fp) , stacksize (stacksz) {}
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};
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/* port engine */
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PortHandle add_port (const std::string& shortname, ARDOUR::DataType, ARDOUR::PortFlags);
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int register_system_ports ();
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void unregister_system_ports ();
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std::vector<AlsaPort *> _ports;
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std::vector<AlsaPort*> _system_inputs;
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std::vector<AlsaPort*> _system_outputs;
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struct PortConnectData {
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std::string a;
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std::string b;
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bool c;
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PortConnectData (const std::string& a, const std::string& b, bool c)
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: a (a) , b (b) , c (c) {}
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};
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std::vector<PortConnectData *> _port_connection_queue;
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pthread_mutex_t _port_callback_mutex;
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void port_connect_callback (const std::string& a, const std::string& b, bool conn) {
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pthread_mutex_lock (&_port_callback_mutex);
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_port_connection_queue.push_back(new PortConnectData(a, b, conn));
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pthread_mutex_unlock (&_port_callback_mutex);
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}
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bool valid_port (PortHandle port) const {
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return std::find (_ports.begin (), _ports.end (), (AlsaPort*)port) != _ports.end ();
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}
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AlsaPort * find_port (const std::string& port_name) const {
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for (std::vector<AlsaPort*>::const_iterator it = _ports.begin (); it != _ports.end (); ++it) {
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if ((*it)->name () == port_name) {
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return *it;
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}
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}
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return NULL;
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}
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}; // class AlsaAudioBackend
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} // namespace
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#endif /* __libbackend_alsa_audiobackend_h__ */
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56
libs/backends/alsa/rt_thread.h
Normal file
56
libs/backends/alsa/rt_thread.h
Normal file
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@ -0,0 +1,56 @@
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/*
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* Copyright (C) 2014 Robin Gareus <robin@gareus.org>
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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
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef __libbackend_alsa_rthread_h__
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#define __libbackend_alsa_rthread_h__
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#include <pthread.h>
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#include <sched.h>
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static int
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_realtime_pthread_create (
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int policy, int priority,
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pthread_t *thread,
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void *(*start_routine) (void *),
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void *arg)
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{
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int rv;
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pthread_attr_t attr;
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struct sched_param parm;
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const size_t stacksize = 100000;
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const int p_min = sched_get_priority_min (policy);
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const int p_max = sched_get_priority_max (policy);
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priority += p_max;
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if (priority > p_max) priority = p_max;
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if (priority < p_min) priority = p_min;
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parm.sched_priority = priority;
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pthread_attr_init (&attr);
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pthread_attr_setschedpolicy (&attr, policy);
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pthread_attr_setschedparam (&attr, &parm);
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pthread_attr_setscope (&attr, PTHREAD_SCOPE_SYSTEM);
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pthread_attr_setinheritsched (&attr, PTHREAD_EXPLICIT_SCHED);
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pthread_attr_setstacksize (&attr, stacksize);
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rv = pthread_create (thread, &attr, start_routine, arg);
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pthread_attr_destroy (&attr);
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return rv;
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}
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#endif
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39
libs/backends/alsa/wscript
Normal file
39
libs/backends/alsa/wscript
Normal file
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@ -0,0 +1,39 @@
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#!/usr/bin/env python
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from waflib.extras import autowaf as autowaf
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import os
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import sys
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import re
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# Library version (UNIX style major, minor, micro)
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# major increment <=> incompatible changes
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# minor increment <=> compatible changes (additions)
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# micro increment <=> no interface changes
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ALSABACKEND_VERSION = '0.0.1'
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I18N_PACKAGE = 'alsa-backend'
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# Mandatory variables
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top = '.'
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out = 'build'
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def options(opt):
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autowaf.set_options(opt)
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def configure(conf):
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autowaf.configure(conf)
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def build(bld):
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obj = bld(features = 'cxx cxxshlib')
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obj.source = [
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'alsa_audiobackend.cc',
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'zita-alsa-pcmi.cc',
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]
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obj.includes = ['.']
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obj.name = 'alsa_audiobackend'
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obj.target = 'alsa_audiobackend'
|
||||
obj.use = 'libardour libpbd'
|
||||
obj.uselib = 'ALSA'
|
||||
obj.vnum = ALSABACKEND_VERSION
|
||||
obj.install_path = os.path.join(bld.env['LIBDIR'], 'backends')
|
||||
obj.defines = ['PACKAGE="' + I18N_PACKAGE + '"',
|
||||
'ARDOURBACKEND_DLL_EXPORTS'
|
||||
]
|
||||
1127
libs/backends/alsa/zita-alsa-pcmi.cc
Normal file
1127
libs/backends/alsa/zita-alsa-pcmi.cc
Normal file
File diff suppressed because it is too large
Load Diff
188
libs/backends/alsa/zita-alsa-pcmi.h
Normal file
188
libs/backends/alsa/zita-alsa-pcmi.h
Normal file
|
|
@ -0,0 +1,188 @@
|
|||
// ----------------------------------------------------------------------------
|
||||
//
|
||||
// Copyright (C) 2006-2012 Fons Adriaensen <fons@linuxaudio.org>
|
||||
//
|
||||
// This program is free software; you can redistribute it and/or modify
|
||||
// it under the terms of the GNU General Public License as published by
|
||||
// the Free Software Foundation; either version 3 of the License, or
|
||||
// (at your option) any later version.
|
||||
//
|
||||
// This program is distributed in the hope that it will be useful,
|
||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
// GNU General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU General Public License
|
||||
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
//
|
||||
// ----------------------------------------------------------------------------
|
||||
|
||||
|
||||
#ifndef _ZITA_ALSA_PCMI_H_
|
||||
#define _ZITA_ALSA_PCMI_H_
|
||||
|
||||
|
||||
#define ALSA_PCM_NEW_HW_PARAMS_API
|
||||
#define ALSA_PCM_NEW_SW_PARAMS_API
|
||||
#include <alsa/asoundlib.h>
|
||||
|
||||
|
||||
#define ZITA_ALSA_PCMI_MAJOR_VERSION 0
|
||||
#define ZITA_ALSA_PCMI_MINOR_VERSION 2
|
||||
|
||||
#include <stdint.h>
|
||||
|
||||
extern int zita_alsa_pcmi_major_version (void);
|
||||
extern int zita_alsa_pcmi_minor_version (void);
|
||||
|
||||
|
||||
class Alsa_pcmi
|
||||
{
|
||||
public:
|
||||
|
||||
Alsa_pcmi (
|
||||
const char *play_name,
|
||||
const char *capt_name,
|
||||
const char *ctrl_name,
|
||||
unsigned int rate,
|
||||
unsigned int frsize,
|
||||
unsigned int nfrags,
|
||||
unsigned int debug = 0);
|
||||
|
||||
~Alsa_pcmi (void);
|
||||
|
||||
enum
|
||||
{
|
||||
DEBUG_INIT = 1,
|
||||
DEBUG_STAT = 2,
|
||||
DEBUG_WAIT = 4,
|
||||
DEBUG_DATA = 8,
|
||||
DEBUG_ALL = 15,
|
||||
FORCE_16B = 256,
|
||||
FORCE_2CH = 512
|
||||
};
|
||||
|
||||
void printinfo (void);
|
||||
|
||||
int pcm_start (void);
|
||||
int pcm_stop (void);
|
||||
snd_pcm_sframes_t pcm_wait (void);
|
||||
int pcm_idle (int len);
|
||||
|
||||
int play_init (snd_pcm_uframes_t len);
|
||||
void clear_chan (int chan, int len);
|
||||
void play_chan (int chan, const float *src, int len, int step = 1);
|
||||
int play_done (int len);
|
||||
|
||||
int capt_init (snd_pcm_uframes_t len);
|
||||
void capt_chan (int chan, float *dst, int len, int step = 1);
|
||||
int capt_done (int len);
|
||||
|
||||
int play_avail (void)
|
||||
{
|
||||
return snd_pcm_avail (_play_handle);
|
||||
}
|
||||
|
||||
int capt_avail (void)
|
||||
{
|
||||
return snd_pcm_avail (_capt_handle);
|
||||
}
|
||||
|
||||
int play_delay (void)
|
||||
{
|
||||
long k;
|
||||
snd_pcm_delay (_play_handle, &k);
|
||||
return k;
|
||||
}
|
||||
|
||||
int capt_delay (void)
|
||||
{
|
||||
long k;
|
||||
snd_pcm_delay (_capt_handle, &k);
|
||||
return k;
|
||||
}
|
||||
|
||||
float play_xrun (void) const { return _play_xrun; }
|
||||
float capt_xrun (void) const { return _capt_xrun; }
|
||||
|
||||
int state (void) const { return _state; }
|
||||
size_t fsize (void) const { return _fsize; }
|
||||
uint32_t fsamp (void) const { return _fsamp; }
|
||||
uint32_t nfrag (void) const { return _nfrag; }
|
||||
uint32_t nplay (void) const { return _play_nchan; }
|
||||
uint32_t ncapt (void) const { return _capt_nchan; }
|
||||
snd_pcm_t *play_handle (void) const { return _play_handle; }
|
||||
snd_pcm_t *capt_handle (void) const { return _capt_handle; }
|
||||
|
||||
|
||||
private:
|
||||
|
||||
typedef char *(Alsa_pcmi::*clear_function)(char *, int);
|
||||
typedef char *(Alsa_pcmi::*play_function)(const float *, char *, int, int);
|
||||
typedef const char *(Alsa_pcmi::*capt_function) (const char *, float *, int, int);
|
||||
|
||||
enum { MAXPFD = 16, MAXCHAN = 64 };
|
||||
|
||||
void initialise (const char *play_name, const char *capt_name, const char *ctrl_name);
|
||||
int set_hwpar (snd_pcm_t *handle, snd_pcm_hw_params_t *hwpar, const char *sname, unsigned int *nchan);
|
||||
int set_swpar (snd_pcm_t *handle, snd_pcm_sw_params_t *swpar, const char *sname);
|
||||
int recover (void);
|
||||
float xruncheck (snd_pcm_status_t *stat);
|
||||
|
||||
char *clear_32 (char *dst, int nfrm);
|
||||
char *clear_24 (char *dst, int nfrm);
|
||||
char *clear_16 (char *dst, int nfrm);
|
||||
|
||||
char *play_float (const float *src, char *dst, int nfrm, int step);
|
||||
char *play_32 (const float *src, char *dst, int nfrm, int step);
|
||||
char *play_24 (const float *src, char *dst, int nfrm, int step);
|
||||
char *play_16 (const float *src, char *dst, int nfrm, int step);
|
||||
char *play_32swap (const float *src, char *dst, int nfrm, int step);
|
||||
char *play_24swap (const float *src, char *dst, int nfrm, int step);
|
||||
char *play_16swap (const float *src, char *dst, int nfrm, int step);
|
||||
|
||||
const char *capt_float (const char *src, float *dst, int nfrm, int step);
|
||||
const char *capt_32 (const char *src, float *dst, int nfrm, int step);
|
||||
const char *capt_24 (const char *src, float *dst, int nfrm, int step);
|
||||
const char *capt_16 (const char *src, float *dst, int nfrm, int step);
|
||||
const char *capt_32swap (const char *src, float *dst, int nfrm, int step);
|
||||
const char *capt_24swap (const char *src, float *dst, int nfrm, int step);
|
||||
const char *capt_16swap (const char *src, float *dst, int nfrm, int step);
|
||||
|
||||
unsigned int _fsamp;
|
||||
snd_pcm_uframes_t _fsize;
|
||||
unsigned int _nfrag;
|
||||
unsigned int _debug;
|
||||
int _state;
|
||||
snd_pcm_t *_play_handle;
|
||||
snd_pcm_t *_capt_handle;
|
||||
snd_ctl_t *_ctrl_handle;
|
||||
snd_pcm_hw_params_t *_play_hwpar;
|
||||
snd_pcm_sw_params_t *_play_swpar;
|
||||
snd_pcm_hw_params_t *_capt_hwpar;
|
||||
snd_pcm_sw_params_t *_capt_swpar;
|
||||
snd_pcm_format_t _play_format;
|
||||
snd_pcm_format_t _capt_format;
|
||||
snd_pcm_access_t _play_access;
|
||||
snd_pcm_access_t _capt_access;
|
||||
unsigned int _play_nchan;
|
||||
unsigned int _capt_nchan;
|
||||
float _play_xrun;
|
||||
float _capt_xrun;
|
||||
bool _synced;
|
||||
int _play_npfd;
|
||||
int _capt_npfd;
|
||||
struct pollfd _poll_fd [MAXPFD];
|
||||
snd_pcm_uframes_t _capt_offs;
|
||||
snd_pcm_uframes_t _play_offs;
|
||||
int _play_step;
|
||||
int _capt_step;
|
||||
char *_play_ptr [MAXCHAN];
|
||||
const char *_capt_ptr [MAXCHAN];
|
||||
clear_function _clear_func;
|
||||
play_function _play_func;
|
||||
capt_function _capt_func;
|
||||
void *_dummy [16];
|
||||
};
|
||||
|
||||
#endif
|
||||
|
|
@ -3,6 +3,7 @@ from waflib.extras import autowaf as autowaf
|
|||
from waflib import Options
|
||||
import os
|
||||
import sys
|
||||
import re
|
||||
|
||||
# Mandatory variables
|
||||
top = '.'
|
||||
|
|
@ -27,6 +28,9 @@ def configure(conf):
|
|||
if Options.options.build_dummy:
|
||||
backends += [ 'dummy' ]
|
||||
|
||||
if re.search ("linux", sys.platform) != None:
|
||||
backends += [ 'alsa' ]
|
||||
|
||||
for i in backends:
|
||||
sub_config_and_use(conf, i)
|
||||
|
||||
|
|
@ -39,5 +43,9 @@ def build(bld):
|
|||
if bld.is_defined('HAVE_DUMMY'):
|
||||
backends += [ 'dummy' ]
|
||||
|
||||
if re.search ("linux", sys.platform) != None:
|
||||
if bld.is_defined('HAVE_ALSA'):
|
||||
backends += [ 'alsa' ]
|
||||
|
||||
for i in backends:
|
||||
bld.recurse(i)
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user