846 lines
22 KiB
C++
846 lines
22 KiB
C++
/*
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Copyright (C) 2000 Paul Davis
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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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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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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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#ifdef WAF_BUILD
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#include "libardour-config.h"
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#endif
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#ifdef interface
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#undef interface
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#endif
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#include <cstdio> // Needed so that libraptor (included in lrdf) won't complain
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#include <cstdlib>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <sys/time.h>
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#ifndef PLATFORM_WINDOWS
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#include <sys/resource.h>
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#endif
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#include <unistd.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <time.h>
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#include <glib.h>
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#include "pbd/gstdio_compat.h"
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#ifdef PLATFORM_WINDOWS
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#include <stdio.h> // for _setmaxstdio
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#include <windows.h> // for LARGE_INTEGER
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#endif
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#ifdef WINDOWS_VST_SUPPORT
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#include <fst.h>
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#endif
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#ifdef LXVST_SUPPORT
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#include "ardour/linux_vst_support.h"
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#endif
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#ifdef AUDIOUNIT_SUPPORT
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#include "ardour/audio_unit.h"
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#endif
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#if defined(__SSE__) || defined(USE_XMMINTRIN)
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#include <xmmintrin.h>
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#endif
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#ifdef check
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#undef check /* stupid Apple and their un-namespaced, generic Carbon macros */
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#endif
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#include <glibmm/fileutils.h>
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#include <glibmm/miscutils.h>
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#ifdef HAVE_LRDF
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#include <lrdf.h>
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#endif
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#include "pbd/cpus.h"
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#include "pbd/error.h"
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#include "pbd/id.h"
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#include "pbd/pbd.h"
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#include "pbd/strsplit.h"
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#include "pbd/fpu.h"
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#include "pbd/file_utils.h"
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#include "pbd/enumwriter.h"
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#include "midi++/port.h"
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#include "midi++/mmc.h"
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#include "LuaBridge/LuaBridge.h"
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#include "ardour/analyser.h"
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#include "ardour/audio_library.h"
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#include "ardour/audio_backend.h"
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#include "ardour/audioengine.h"
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#include "ardour/audioplaylist.h"
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#include "ardour/audioregion.h"
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#include "ardour/buffer_manager.h"
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#include "ardour/control_protocol_manager.h"
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#include "ardour/directory_names.h"
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#include "ardour/event_type_map.h"
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#include "ardour/filesystem_paths.h"
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#include "ardour/midi_region.h"
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#include "ardour/midi_ui.h"
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#include "ardour/midiport_manager.h"
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#include "ardour/mix.h"
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#include "ardour/operations.h"
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#include "ardour/panner_manager.h"
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#include "ardour/plugin_manager.h"
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#include "ardour/presentation_info.h"
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#include "ardour/process_thread.h"
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#include "ardour/profile.h"
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#include "ardour/rc_configuration.h"
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#include "ardour/region.h"
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#include "ardour/route_group.h"
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#include "ardour/runtime_functions.h"
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#include "ardour/session_event.h"
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#include "ardour/source_factory.h"
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#ifdef LV2_SUPPORT
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#include "ardour/uri_map.h"
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#endif
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#include "audiographer/routines.h"
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#if defined (__APPLE__)
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#include <CoreFoundation/CoreFoundation.h>
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#endif
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#include "pbd/i18n.h"
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ARDOUR::RCConfiguration* ARDOUR::Config = 0;
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ARDOUR::RuntimeProfile* ARDOUR::Profile = 0;
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ARDOUR::AudioLibrary* ARDOUR::Library = 0;
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using namespace ARDOUR;
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using namespace std;
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using namespace PBD;
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bool libardour_initialized = false;
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compute_peak_t ARDOUR::compute_peak = 0;
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find_peaks_t ARDOUR::find_peaks = 0;
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apply_gain_to_buffer_t ARDOUR::apply_gain_to_buffer = 0;
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mix_buffers_with_gain_t ARDOUR::mix_buffers_with_gain = 0;
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mix_buffers_no_gain_t ARDOUR::mix_buffers_no_gain = 0;
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copy_vector_t ARDOUR::copy_vector = 0;
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PBD::Signal1<void,std::string> ARDOUR::BootMessage;
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PBD::Signal3<void,std::string,std::string,bool> ARDOUR::PluginScanMessage;
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PBD::Signal1<void,int> ARDOUR::PluginScanTimeout;
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PBD::Signal0<void> ARDOUR::GUIIdle;
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PBD::Signal3<bool,std::string,std::string,int> ARDOUR::CopyConfigurationFiles;
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std::map<std::string, bool> ARDOUR::reserved_io_names;
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static bool have_old_configuration_files = false;
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namespace ARDOUR {
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extern void setup_enum_writer ();
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}
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/* this is useful for quite a few things that want to check
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if any bounds-related property has changed
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*/
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PBD::PropertyChange ARDOUR::bounds_change;
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void
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setup_hardware_optimization (bool try_optimization)
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{
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bool generic_mix_functions = true;
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if (try_optimization) {
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FPU* fpu = FPU::instance();
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#if defined (ARCH_X86) && defined (BUILD_SSE_OPTIMIZATIONS)
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#ifdef PLATFORM_WINDOWS
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/* We have AVX-optimized code for Windows */
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if (fpu->has_avx()) {
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#else
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/* AVX code doesn't compile on Linux yet */
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if (false) {
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#endif
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info << "Using AVX optimized routines" << endmsg;
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// AVX SET
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compute_peak = x86_sse_avx_compute_peak;
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find_peaks = x86_sse_avx_find_peaks;
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apply_gain_to_buffer = x86_sse_avx_apply_gain_to_buffer;
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mix_buffers_with_gain = x86_sse_avx_mix_buffers_with_gain;
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mix_buffers_no_gain = x86_sse_avx_mix_buffers_no_gain;
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copy_vector = x86_sse_avx_copy_vector;
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generic_mix_functions = false;
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} else if (fpu->has_sse()) {
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info << "Using SSE optimized routines" << endmsg;
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// SSE SET
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compute_peak = x86_sse_compute_peak;
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find_peaks = x86_sse_find_peaks;
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apply_gain_to_buffer = x86_sse_apply_gain_to_buffer;
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mix_buffers_with_gain = x86_sse_mix_buffers_with_gain;
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mix_buffers_no_gain = x86_sse_mix_buffers_no_gain;
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copy_vector = default_copy_vector;
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generic_mix_functions = false;
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}
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#elif defined (__APPLE__) && defined (BUILD_VECLIB_OPTIMIZATIONS)
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if (floor (kCFCoreFoundationVersionNumber) > kCFCoreFoundationVersionNumber10_4) { /* at least Tiger */
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compute_peak = veclib_compute_peak;
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find_peaks = veclib_find_peaks;
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apply_gain_to_buffer = veclib_apply_gain_to_buffer;
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mix_buffers_with_gain = veclib_mix_buffers_with_gain;
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mix_buffers_no_gain = veclib_mix_buffers_no_gain;
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copy_vector = default_copy_vector;
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generic_mix_functions = false;
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info << "Apple VecLib H/W specific optimizations in use" << endmsg;
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}
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#endif
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/* consider FPU denormal handling to be "h/w optimization" */
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setup_fpu ();
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}
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if (generic_mix_functions) {
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compute_peak = default_compute_peak;
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find_peaks = default_find_peaks;
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apply_gain_to_buffer = default_apply_gain_to_buffer;
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mix_buffers_with_gain = default_mix_buffers_with_gain;
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mix_buffers_no_gain = default_mix_buffers_no_gain;
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copy_vector = default_copy_vector;
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info << "No H/W specific optimizations in use" << endmsg;
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}
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AudioGrapher::Routines::override_compute_peak (compute_peak);
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AudioGrapher::Routines::override_apply_gain_to_buffer (apply_gain_to_buffer);
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}
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static void
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lotsa_files_please ()
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{
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#ifndef PLATFORM_WINDOWS
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struct rlimit rl;
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if (getrlimit (RLIMIT_NOFILE, &rl) == 0) {
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#ifdef __APPLE__
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/* See the COMPATIBILITY note on the Apple setrlimit() man page */
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rl.rlim_cur = min ((rlim_t) OPEN_MAX, rl.rlim_max);
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#else
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rl.rlim_cur = rl.rlim_max;
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#endif
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if (setrlimit (RLIMIT_NOFILE, &rl) != 0) {
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if (rl.rlim_cur == RLIM_INFINITY) {
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error << _("Could not set system open files limit to \"unlimited\"") << endmsg;
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} else {
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error << string_compose (_("Could not set system open files limit to %1"), rl.rlim_cur) << endmsg;
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}
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} else {
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if (rl.rlim_cur != RLIM_INFINITY) {
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info << string_compose (_("Your system is configured to limit %1 to only %2 open files"), PROGRAM_NAME, rl.rlim_cur) << endmsg;
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}
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}
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} else {
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error << string_compose (_("Could not get system open files limit (%1)"), strerror (errno)) << endmsg;
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}
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#else
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/* this only affects stdio. 2048 is the maxium possible (512 the default).
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*
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* If we want more, we'll have to replaces the POSIX I/O interfaces with
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* Win32 API calls (CreateFile, WriteFile, etc) which allows for 16K.
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*
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* see http://stackoverflow.com/questions/870173/is-there-a-limit-on-number-of-open-files-in-windows
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* and http://bugs.mysql.com/bug.php?id=24509
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*/
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int newmax = _setmaxstdio (2048);
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if (newmax > 0) {
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info << string_compose (_("Your system is configured to limit %1 to only %2 open files"), PROGRAM_NAME, newmax) << endmsg;
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} else {
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error << string_compose (_("Could not set system open files limit. Current limit is %1 open files"), _getmaxstdio()) << endmsg;
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}
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#endif
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}
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static int
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copy_configuration_files (string const & old_dir, string const & new_dir, int old_version)
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{
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string old_name;
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string new_name;
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/* ensure target directory exists */
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if (g_mkdir_with_parents (new_dir.c_str(), 0755)) {
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return -1;
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}
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if (old_version >= 3) {
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old_name = Glib::build_filename (old_dir, X_("recent"));
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new_name = Glib::build_filename (new_dir, X_("recent"));
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copy_file (old_name, new_name);
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old_name = Glib::build_filename (old_dir, X_("sfdb"));
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new_name = Glib::build_filename (new_dir, X_("sfdb"));
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copy_file (old_name, new_name);
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/* can only copy ardour.rc/config - UI config is not compatible */
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/* users who have been using git/nightlies since the last
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* release of 3.5 will have $CONFIG/config rather than
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* $CONFIG/ardour.rc. Pick up the newer "old" config file,
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* to avoid confusion.
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*/
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string old_name = Glib::build_filename (old_dir, X_("config"));
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if (!Glib::file_test (old_name, Glib::FILE_TEST_EXISTS)) {
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old_name = Glib::build_filename (old_dir, X_("ardour.rc"));
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}
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new_name = Glib::build_filename (new_dir, X_("config"));
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copy_file (old_name, new_name);
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/* copy templates and route templates */
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old_name = Glib::build_filename (old_dir, X_("templates"));
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new_name = Glib::build_filename (new_dir, X_("templates"));
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copy_recurse (old_name, new_name);
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old_name = Glib::build_filename (old_dir, X_("route_templates"));
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new_name = Glib::build_filename (new_dir, X_("route_templates"));
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copy_recurse (old_name, new_name);
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/* presets */
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old_name = Glib::build_filename (old_dir, X_("presets"));
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new_name = Glib::build_filename (new_dir, X_("presets"));
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copy_recurse (old_name, new_name);
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/* presets */
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old_name = Glib::build_filename (old_dir, X_("plugin_statuses")); /* until 6.0 */
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new_name = Glib::build_filename (new_dir, plugin_metadata_dir_name, X_("plugin_statuses"));
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copy_file (old_name, new_name); /* can fail silently */
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old_name = Glib::build_filename (old_dir, plugin_metadata_dir_name, X_("plugin_statuses"));
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copy_file (old_name, new_name);
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/* plugin tags */
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old_name = Glib::build_filename (old_dir, plugin_metadata_dir_name, X_("plugin_tags"));
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new_name = Glib::build_filename (new_dir, plugin_metadata_dir_name, X_("plugin_tags"));
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copy_file (old_name, new_name);
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/* export formats */
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old_name = Glib::build_filename (old_dir, export_formats_dir_name);
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new_name = Glib::build_filename (new_dir, export_formats_dir_name);
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vector<string> export_formats;
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g_mkdir_with_parents (Glib::build_filename (new_dir, export_formats_dir_name).c_str(), 0755);
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find_files_matching_pattern (export_formats, old_name, X_("*.format"));
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for (vector<string>::iterator i = export_formats.begin(); i != export_formats.end(); ++i) {
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std::string from = *i;
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std::string to = Glib::build_filename (new_name, Glib::path_get_basename (*i));
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copy_file (from, to);
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}
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}
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return 0;
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}
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void
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ARDOUR::check_for_old_configuration_files ()
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{
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int current_version = atoi (X_(PROGRAM_VERSION));
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if (current_version <= 1) {
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return;
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}
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int old_version = current_version - 1;
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string old_config_dir = user_config_directory (old_version);
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/* pass in the current version explicitly to avoid creation */
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string current_config_dir = user_config_directory (current_version);
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if (!Glib::file_test (current_config_dir, Glib::FILE_TEST_IS_DIR)) {
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if (Glib::file_test (old_config_dir, Glib::FILE_TEST_IS_DIR)) {
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have_old_configuration_files = true;
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}
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}
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}
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int
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ARDOUR::handle_old_configuration_files (boost::function<bool (std::string const&, std::string const&, int)> ui_handler)
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{
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if (have_old_configuration_files) {
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int current_version = atoi (X_(PROGRAM_VERSION));
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assert (current_version > 1); // established in check_for_old_configuration_files ()
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int old_version = current_version - 1;
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string old_config_dir = user_config_directory (old_version);
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string current_config_dir = user_config_directory (current_version);
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if (ui_handler (old_config_dir, current_config_dir, old_version)) {
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copy_configuration_files (old_config_dir, current_config_dir, old_version);
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return 1;
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}
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}
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return 0;
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}
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bool
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ARDOUR::init (bool use_windows_vst, bool try_optimization, const char* localedir)
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{
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if (libardour_initialized) {
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return true;
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}
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#ifndef NDEBUG
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if (getenv("LUA_METATABLES")) {
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luabridge::Security::setHideMetatables (false);
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}
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#endif
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if (!PBD::init()) return false;
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#ifdef ENABLE_NLS
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(void) bindtextdomain(PACKAGE, localedir);
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(void) bind_textdomain_codeset (PACKAGE, "UTF-8");
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#endif
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SessionEvent::init_event_pool ();
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Operations::make_operations_quarks ();
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SessionObject::make_property_quarks ();
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Region::make_property_quarks ();
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MidiRegion::make_property_quarks ();
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AudioRegion::make_property_quarks ();
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RouteGroup::make_property_quarks ();
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Playlist::make_property_quarks ();
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AudioPlaylist::make_property_quarks ();
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PresentationInfo::make_property_quarks ();
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/* this is a useful ready to use PropertyChange that many
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things need to check. This avoids having to compose
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it every time we want to check for any of the relevant
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property changes.
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*/
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bounds_change.add (ARDOUR::Properties::start);
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bounds_change.add (ARDOUR::Properties::position);
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bounds_change.add (ARDOUR::Properties::length);
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/* provide a state version for the few cases that need it and are not
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driven by reading state from disk (e.g. undo/redo)
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*/
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Stateful::current_state_version = CURRENT_SESSION_FILE_VERSION;
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ARDOUR::setup_enum_writer ();
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// allow ardour the absolute maximum number of open files
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lotsa_files_please ();
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#ifdef HAVE_LRDF
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lrdf_init();
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#endif
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Library = new AudioLibrary;
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BootMessage (_("Loading configuration"));
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Config = new RCConfiguration;
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if (Config->load_state ()) {
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return false;
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}
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Config->set_use_windows_vst (use_windows_vst);
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#ifdef LXVST_SUPPORT
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|
Config->set_use_lxvst(true);
|
|
#endif
|
|
|
|
Profile = new RuntimeProfile;
|
|
|
|
|
|
#ifdef WINDOWS_VST_SUPPORT
|
|
if (Config->get_use_windows_vst() && fst_init (0)) {
|
|
return false;
|
|
}
|
|
#endif
|
|
|
|
#ifdef LXVST_SUPPORT
|
|
if (Config->get_use_lxvst() && vstfx_init (0)) {
|
|
return false;
|
|
}
|
|
#endif
|
|
|
|
#ifdef AUDIOUNIT_SUPPORT
|
|
AUPluginInfo::load_cached_info ();
|
|
#endif
|
|
|
|
setup_hardware_optimization (try_optimization);
|
|
|
|
SourceFactory::init ();
|
|
Analyser::init ();
|
|
|
|
/* singletons - first object is "it" */
|
|
(void) PluginManager::instance();
|
|
#ifdef LV2_SUPPORT
|
|
(void) URIMap::instance();
|
|
#endif
|
|
(void) EventTypeMap::instance();
|
|
|
|
ControlProtocolManager::instance().discover_control_protocols ();
|
|
|
|
/* for each control protocol, check for a request buffer factory method
|
|
and if it exists, store it in the EventLoop list of such
|
|
methods. This allows the relevant threads to register themselves
|
|
with EventLoops so that signal emission can be RT-safe.
|
|
*/
|
|
|
|
ControlProtocolManager::instance().register_request_buffer_factories ();
|
|
/* it would be nice if this could auto-register itself in the
|
|
constructor, since MidiControlUI is a singleton, but it can't be
|
|
created until after the engine is running. Therefore we have to
|
|
explicitly register it here.
|
|
*/
|
|
EventLoop::register_request_buffer_factory (X_("midiUI"), MidiControlUI::request_factory);
|
|
|
|
ProcessThread::init ();
|
|
/* the + 4 is a bit of a handwave. i don't actually know
|
|
how many more per-thread buffer sets we need above
|
|
the h/w concurrency, but its definitely > 1 more.
|
|
*/
|
|
BufferManager::init (hardware_concurrency() + 4);
|
|
|
|
PannerManager::instance().discover_panners();
|
|
|
|
ARDOUR::AudioEngine::create ();
|
|
|
|
/* it is unfortunate that we need to include reserved names here that
|
|
refer to control surfaces. But there's no way to ensure a complete
|
|
lack of collisions without doing this, since the control surface
|
|
support may not even be active. Without adding an API to control
|
|
surface support that would list their port names, we do have to
|
|
list them here.
|
|
|
|
We also need to know if the given I/O is an actual route.
|
|
For routes (e.g. "master"), bus creation needs to be allowed the first time,
|
|
while for pure I/O (e.g. "Click") track/bus creation must always fail.
|
|
*/
|
|
|
|
reserved_io_names[_("Monitor")] = true;
|
|
reserved_io_names[_("Master")] = true;
|
|
reserved_io_names["auditioner"] = true; // auditioner.cc Track (s, "auditioner",...)
|
|
|
|
/* pure I/O */
|
|
reserved_io_names[X_("Click")] = false; // session.cc ClickIO (*this, X_("Click")
|
|
reserved_io_names[_("Control")] = false;
|
|
reserved_io_names[_("Mackie")] = false;
|
|
reserved_io_names[_("FaderPort Recv")] = false;
|
|
reserved_io_names[_("FaderPort Send")] = false;
|
|
reserved_io_names[_("FaderPort8 Recv")] = false;
|
|
reserved_io_names[_("FaderPort8 Send")] = false;
|
|
reserved_io_names[_("FaderPort16 Recv")] = false;
|
|
reserved_io_names[_("FaderPort16 Send")] = false;
|
|
|
|
libardour_initialized = true;
|
|
|
|
return true;
|
|
}
|
|
|
|
void
|
|
ARDOUR::init_post_engine ()
|
|
{
|
|
XMLNode* node;
|
|
if ((node = Config->control_protocol_state()) != 0) {
|
|
ControlProtocolManager::instance().set_state (*node, Stateful::loading_state_version);
|
|
}
|
|
|
|
/* find plugins */
|
|
|
|
ARDOUR::PluginManager::instance().refresh (!Config->get_discover_vst_on_start());
|
|
}
|
|
|
|
void
|
|
ARDOUR::cleanup ()
|
|
{
|
|
if (!libardour_initialized) {
|
|
return;
|
|
}
|
|
|
|
delete &ControlProtocolManager::instance();
|
|
ARDOUR::AudioEngine::destroy ();
|
|
|
|
delete Library;
|
|
#ifdef HAVE_LRDF
|
|
lrdf_cleanup ();
|
|
#endif
|
|
#ifdef WINDOWS_VST_SUPPORT
|
|
fst_exit ();
|
|
#endif
|
|
|
|
#ifdef LXVST_SUPPORT
|
|
vstfx_exit();
|
|
#endif
|
|
delete &PluginManager::instance();
|
|
delete Config;
|
|
PBD::cleanup ();
|
|
|
|
return;
|
|
}
|
|
|
|
bool
|
|
ARDOUR::no_auto_connect()
|
|
{
|
|
return getenv ("ARDOUR_NO_AUTOCONNECT") != 0;
|
|
}
|
|
|
|
void
|
|
ARDOUR::setup_fpu ()
|
|
{
|
|
FPU* fpu = FPU::instance ();
|
|
|
|
if (getenv ("ARDOUR_RUNNING_UNDER_VALGRIND")) {
|
|
// valgrind doesn't understand this assembler stuff
|
|
// September 10th, 2007
|
|
return;
|
|
}
|
|
|
|
#if defined(ARCH_X86) && defined(USE_XMMINTRIN)
|
|
|
|
int MXCSR;
|
|
|
|
if (!fpu->has_flush_to_zero() && !fpu->has_denormals_are_zero()) {
|
|
return;
|
|
}
|
|
|
|
MXCSR = _mm_getcsr();
|
|
|
|
#ifdef DEBUG_DENORMAL_EXCEPTION
|
|
/* This will raise a FP exception if a denormal is detected */
|
|
MXCSR &= ~_MM_MASK_DENORM;
|
|
#endif
|
|
|
|
switch (Config->get_denormal_model()) {
|
|
case DenormalNone:
|
|
MXCSR &= ~(_MM_FLUSH_ZERO_ON | 0x40);
|
|
break;
|
|
|
|
case DenormalFTZ:
|
|
if (fpu->has_flush_to_zero()) {
|
|
MXCSR |= _MM_FLUSH_ZERO_ON;
|
|
}
|
|
break;
|
|
|
|
case DenormalDAZ:
|
|
MXCSR &= ~_MM_FLUSH_ZERO_ON;
|
|
if (fpu->has_denormals_are_zero()) {
|
|
MXCSR |= 0x40;
|
|
}
|
|
break;
|
|
|
|
case DenormalFTZDAZ:
|
|
if (fpu->has_flush_to_zero()) {
|
|
if (fpu->has_denormals_are_zero()) {
|
|
MXCSR |= _MM_FLUSH_ZERO_ON | 0x40;
|
|
} else {
|
|
MXCSR |= _MM_FLUSH_ZERO_ON;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
_mm_setcsr (MXCSR);
|
|
|
|
#endif
|
|
}
|
|
|
|
/* this can be changed to modify the translation behaviour for
|
|
cases where the user has never expressed a preference.
|
|
*/
|
|
static const bool translate_by_default = true;
|
|
|
|
string
|
|
ARDOUR::translation_enable_path ()
|
|
{
|
|
return Glib::build_filename (user_config_directory(), ".translate");
|
|
}
|
|
|
|
bool
|
|
ARDOUR::translations_are_enabled ()
|
|
{
|
|
int fd = g_open (ARDOUR::translation_enable_path().c_str(), O_RDONLY, 0444);
|
|
|
|
if (fd < 0) {
|
|
return translate_by_default;
|
|
}
|
|
|
|
char c;
|
|
bool ret = false;
|
|
|
|
if (::read (fd, &c, 1) == 1 && c == '1') {
|
|
ret = true;
|
|
}
|
|
|
|
::close (fd);
|
|
|
|
return ret;
|
|
}
|
|
|
|
bool
|
|
ARDOUR::set_translations_enabled (bool yn)
|
|
{
|
|
string i18n_enabler = ARDOUR::translation_enable_path();
|
|
int fd = g_open (i18n_enabler.c_str(), O_WRONLY|O_CREAT|O_TRUNC, 0644);
|
|
|
|
if (fd < 0) {
|
|
return false;
|
|
}
|
|
|
|
char c;
|
|
|
|
if (yn) {
|
|
c = '1';
|
|
} else {
|
|
c = '0';
|
|
}
|
|
|
|
(void) ::write (fd, &c, 1);
|
|
(void) ::close (fd);
|
|
|
|
Config->ParameterChanged ("enable-translation");
|
|
return true;
|
|
}
|
|
|
|
|
|
vector<SyncSource>
|
|
ARDOUR::get_available_sync_options ()
|
|
{
|
|
vector<SyncSource> ret;
|
|
|
|
boost::shared_ptr<AudioBackend> backend = AudioEngine::instance()->current_backend();
|
|
if (backend && backend->name() == "JACK") {
|
|
ret.push_back (Engine);
|
|
}
|
|
|
|
ret.push_back (MTC);
|
|
ret.push_back (MIDIClock);
|
|
ret.push_back (LTC);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/** Return a monotonic value for the number of microseconds that have elapsed
|
|
* since an arbitrary zero origin.
|
|
*/
|
|
|
|
#ifdef __MACH__
|
|
/* Thanks Apple for not implementing this basic SUSv2, POSIX.1-2001 function
|
|
*/
|
|
#include <mach/mach_time.h>
|
|
#define CLOCK_REALTIME 0
|
|
#define CLOCK_MONOTONIC 0
|
|
int
|
|
clock_gettime (int /*clk_id*/, struct timespec *t)
|
|
{
|
|
static bool initialized = false;
|
|
static mach_timebase_info_data_t timebase;
|
|
if (!initialized) {
|
|
mach_timebase_info(&timebase);
|
|
initialized = true;
|
|
}
|
|
uint64_t time;
|
|
time = mach_absolute_time();
|
|
double nseconds = ((double)time * (double)timebase.numer)/((double)timebase.denom);
|
|
double seconds = ((double)time * (double)timebase.numer)/((double)timebase.denom * 1e9);
|
|
t->tv_sec = seconds;
|
|
t->tv_nsec = nseconds;
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
microseconds_t
|
|
ARDOUR::get_microseconds ()
|
|
{
|
|
#ifdef PLATFORM_WINDOWS
|
|
microseconds_t ret = 0;
|
|
LARGE_INTEGER freq, time;
|
|
|
|
if (QueryPerformanceFrequency(&freq))
|
|
if (QueryPerformanceCounter(&time))
|
|
ret = (microseconds_t)((time.QuadPart * 1000000) / freq.QuadPart);
|
|
|
|
return ret;
|
|
#else
|
|
struct timespec ts;
|
|
if (clock_gettime (CLOCK_MONOTONIC, &ts) != 0) {
|
|
/* EEEK! */
|
|
return 0;
|
|
}
|
|
return (microseconds_t) ts.tv_sec * 1000000 + (ts.tv_nsec/1000);
|
|
#endif
|
|
}
|
|
|
|
/** Return the number of bits per sample for a given sample format.
|
|
*
|
|
* This is closely related to sndfile_data_width() but does NOT
|
|
* return a "magic" value to differentiate between 32 bit integer
|
|
* and 32 bit floating point values.
|
|
*/
|
|
|
|
int
|
|
ARDOUR::format_data_width (ARDOUR::SampleFormat format)
|
|
{
|
|
|
|
|
|
|
|
switch (format) {
|
|
case ARDOUR::FormatInt16:
|
|
return 16;
|
|
case ARDOUR::FormatInt24:
|
|
return 24;
|
|
default:
|
|
return 32;
|
|
}
|
|
}
|