Move implementation for DSPLoadCalculator back into header
It can be inline now that it is much simpler
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@ -23,11 +23,9 @@
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#include <cassert>
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#include <algorithm>
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#include "ardour/libardour_visibility.h"
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namespace ARDOUR {
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class LIBARDOUR_API DSPLoadCalculator {
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class DSPLoadCalculator {
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public:
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DSPLoadCalculator()
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: m_max_time_us(0)
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@ -50,7 +48,34 @@ public:
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m_start_timestamp_us = start_timestamp_us;
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}
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void set_stop_timestamp_us(int64_t stop_timestamp_us);
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void set_stop_timestamp_us(int64_t stop_timestamp_us)
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{
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m_stop_timestamp_us = stop_timestamp_us;
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/* querying the performance counter can fail occasionally (-1).
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* Also on some multi-core systems, timers are CPU specific and not
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* synchronized. We assume they differ more than a few milliseconds
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* (4 * nominal cycle time) and simply ignore cases where the
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* execution switches cores.
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*/
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if (m_start_timestamp_us < 0 || m_stop_timestamp_us < 0 ||
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m_start_timestamp_us > m_stop_timestamp_us ||
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elapsed_time_us() > max_timer_error()) {
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return;
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}
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if (elapsed_time_us() > m_max_time_us) {
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m_dsp_load = 1.0f;
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} else {
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const float load = elapsed_time_us() / (float)m_max_time_us;
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if (load > m_dsp_load) {
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m_dsp_load = load;
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} else {
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const float alpha = 0.2f * (m_max_time_us * 1e-6f);
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m_dsp_load = m_dsp_load + alpha * (load - m_dsp_load) + 1e-12;
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}
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}
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}
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int64_t elapsed_time_us()
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{
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@ -1,53 +0,0 @@
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/*
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* Copyright (C) 2015 Tim Mayberry <mojofunk@gmail.com>
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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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#include "ardour/dsp_load_calculator.h"
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namespace ARDOUR {
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void
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DSPLoadCalculator::set_stop_timestamp_us(int64_t stop_timestamp_us)
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{
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m_stop_timestamp_us = stop_timestamp_us;
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/* querying the performance counter can fail occasionally (-1).
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* Also on some multi-core systems, timers are CPU specific and not
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* synchronized. We assume they differ more than a few milliseconds
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* (4 * nominal cycle time) and simply ignore cases where the
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* execution switches cores.
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*/
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if (m_start_timestamp_us < 0 || m_stop_timestamp_us < 0 ||
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m_start_timestamp_us > m_stop_timestamp_us ||
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elapsed_time_us() > max_timer_error()) {
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return;
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}
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if (elapsed_time_us() > m_max_time_us) {
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m_dsp_load = 1.0f;
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} else {
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const float load = elapsed_time_us() / (float)m_max_time_us;
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if (load > m_dsp_load) {
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m_dsp_load = load;
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} else {
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const float alpha = 0.2f * (m_max_time_us * 1e-6f);
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m_dsp_load = m_dsp_load + alpha * (load - m_dsp_load) + 1e-12;
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}
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}
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}
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} // namespace ARDOUR
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@ -65,7 +65,6 @@ libardour_sources = [
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'delivery.cc',
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'directory_names.cc',
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'diskstream.cc',
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'dsp_load_calculator.cc',
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'element_import_handler.cc',
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'element_importer.cc',
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'engine_slave.cc',
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