[pulseview.git] / pv / data / signalbase.cpp

/*
 * This file is part of the PulseView project.
 *
 * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
 * Copyright (C) 2016 Soeren Apel <soeren@apelpie.net>
 *
 * 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 2 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/>.
 */

#include "analog.hpp"
#include "analogsegment.hpp"
#include "decode/row.hpp"
#include "logic.hpp"
#include "logicsegment.hpp"
#include "signalbase.hpp"
#include "signaldata.hpp"

#include <pv/binding/decoder.hpp>
#include <pv/session.hpp>

using std::dynamic_pointer_cast;
using std::make_shared;
using std::shared_ptr;
using std::tie;

namespace pv {
namespace data {

const int SignalBase::ColourBGAlpha = 8 * 256 / 100;

SignalBase::SignalBase(shared_ptr<sigrok::Channel> channel, ChannelType channel_type) :
	channel_(channel),
	channel_type_(channel_type),
	conversion_type_(NoConversion)
{
	if (channel_)
		internal_name_ = QString::fromStdString(channel_->name());
}

SignalBase::~SignalBase()
{
	// Wait for the currently ongoing conversion to finish
	if (conversion_thread_.joinable())
		conversion_thread_.join();
}

shared_ptr<sigrok::Channel> SignalBase::channel() const
{
	return channel_;
}

QString SignalBase::name() const
{
	return (channel_) ? QString::fromStdString(channel_->name()) : name_;
}

QString SignalBase::internal_name() const
{
	return internal_name_;
}

void SignalBase::set_name(QString name)
{
	if (channel_)
		channel_->set_name(name.toUtf8().constData());

	name_ = name;

	name_changed(name);
}

bool SignalBase::enabled() const
{
	return (channel_) ? channel_->enabled() : true;
}

void SignalBase::set_enabled(bool value)
{
	if (channel_) {
		channel_->set_enabled(value);
		enabled_changed(value);
	}
}

SignalBase::ChannelType SignalBase::type() const
{
	return channel_type_;
}

unsigned int SignalBase::index() const
{
	return (channel_) ? channel_->index() : (unsigned int)-1;
}

QColor SignalBase::colour() const
{
	return colour_;
}

void SignalBase::set_colour(QColor colour)
{
	colour_ = colour;

	bgcolour_ = colour;
	bgcolour_.setAlpha(ColourBGAlpha);

	colour_changed(colour);
}

QColor SignalBase::bgcolour() const
{
	return bgcolour_;
}

void SignalBase::set_data(shared_ptr<pv::data::SignalData> data)
{
	if (data_ && channel_type_ == AnalogChannel) {
		shared_ptr<Analog> analog_data = dynamic_pointer_cast<Analog>(data_);

		disconnect(analog_data.get(), SIGNAL(samples_cleared()),
			this, SLOT(on_samples_cleared()));
		disconnect(analog_data.get(), SIGNAL(samples_added(QObject*, uint64_t, uint64_t)),
			this, SLOT(on_samples_added(QObject*, uint64_t, uint64_t)));
	}

	data_ = data;

	if (data_ && channel_type_ == AnalogChannel) {
		shared_ptr<Analog> analog_data = dynamic_pointer_cast<Analog>(data_);

		connect(analog_data.get(), SIGNAL(samples_cleared()),
			this, SLOT(on_samples_cleared()));
		connect(analog_data.get(), SIGNAL(samples_added(QObject*, uint64_t, uint64_t)),
			this, SLOT(on_samples_added(QObject*, uint64_t, uint64_t)));
	}
}

shared_ptr<data::Analog> SignalBase::analog_data() const
{
	shared_ptr<Analog> result = nullptr;

	if (channel_type_ == AnalogChannel)
		result = dynamic_pointer_cast<Analog>(data_);

	return result;
}

shared_ptr<data::Logic> SignalBase::logic_data() const
{
	shared_ptr<Logic> result = nullptr;

	if (channel_type_ == LogicChannel)
		result = dynamic_pointer_cast<Logic>(data_);

	if (((conversion_type_ == A2LConversionByTreshold) ||
		(conversion_type_ == A2LConversionBySchmittTrigger)))
		result = dynamic_pointer_cast<Logic>(converted_data_);

	return result;
}

void SignalBase::set_conversion_type(ConversionType t)
{
	if (conversion_type_ != NoConversion) {
		// Wait for the currently ongoing conversion to finish
		if (conversion_thread_.joinable())
			conversion_thread_.join();

		// Discard converted data
		converted_data_.reset();
	}

	conversion_type_ = t;

	if ((channel_type_ == AnalogChannel) &&
		((conversion_type_ == A2LConversionByTreshold) ||
		(conversion_type_ == A2LConversionBySchmittTrigger))) {

		shared_ptr<Analog> analog_data = dynamic_pointer_cast<Analog>(data_);

		if (analog_data->analog_segments().size() > 0) {
			AnalogSegment *asegment = analog_data->analog_segments().front().get();

			// Begin conversion of existing sample data
			// TODO Support for multiple segments is missing
			on_samples_added(asegment, 0, 0);
		}
	}

	conversion_type_changed(t);
}

#ifdef ENABLE_DECODE
bool SignalBase::is_decode_signal() const
{
	return (decoder_stack_ != nullptr);
}

shared_ptr<pv::data::DecoderStack> SignalBase::decoder_stack() const
{
	return decoder_stack_;
}

void SignalBase::set_decoder_stack(shared_ptr<pv::data::DecoderStack>
	decoder_stack)
{
	decoder_stack_ = decoder_stack;
}
#endif

void SignalBase::save_settings(QSettings &settings) const
{
	settings.setValue("name", name());
	settings.setValue("enabled", enabled());
	settings.setValue("colour", colour());
	settings.setValue("conversion_type", (int)conversion_type_);
}

void SignalBase::restore_settings(QSettings &settings)
{
	set_name(settings.value("name").toString());
	set_enabled(settings.value("enabled").toBool());
	set_colour(settings.value("colour").value<QColor>());
	set_conversion_type((ConversionType)settings.value("conversion_type").toInt());
}

uint8_t SignalBase::convert_a2l_threshold(float threshold, float value)
{
	return (value >= threshold) ? 1 : 0;
}

uint8_t SignalBase::convert_a2l_schmitt_trigger(float lo_thr, float hi_thr,
	float value, uint8_t &state)
{
	if (value < lo_thr)
		state = 0;
	else if (value > hi_thr)
		state = 1;

	return state;
}

void SignalBase::conversion_thread_proc(QObject* segment, uint64_t start_sample,
	uint64_t end_sample)
{
	const uint64_t block_size = 4096;

	// TODO Support for multiple segments is missing

	if ((channel_type_ == AnalogChannel) &&
		((conversion_type_ == A2LConversionByTreshold) ||
		(conversion_type_ == A2LConversionBySchmittTrigger))) {

		AnalogSegment *asegment = qobject_cast<AnalogSegment*>(segment);

		// Create the logic data container if needed
		shared_ptr<Logic> logic_data;
		if (!converted_data_) {
			logic_data = make_shared<Logic>(1);  // Contains only one channel
			converted_data_ = logic_data;
		} else
			 logic_data = dynamic_pointer_cast<Logic>(converted_data_);

		// Create the initial logic data segment if needed
		if (logic_data->segments().size() == 0) {
			shared_ptr<LogicSegment> lsegment =
				make_shared<LogicSegment>(*logic_data.get(), 1, asegment->samplerate());
			logic_data->push_segment(lsegment);
		}

		LogicSegment *lsegment = dynamic_cast<LogicSegment*>(logic_data->segments().front().get());

		// start_sample=end_sample=0 means we need to figure out the unprocessed range
		if ((start_sample == 0) && (end_sample == 0)) {
			start_sample = lsegment->get_sample_count();
			end_sample = asegment->get_sample_count();
		}

		if (start_sample == end_sample)
			return;  // Nothing to do

		float min_v, max_v;
		tie(min_v, max_v) = asegment->get_min_max();

		vector<uint8_t> lsamples;
		lsamples.reserve(block_size);

		uint64_t i = start_sample;

		if (conversion_type_ == A2LConversionByTreshold) {
			const float threshold = (min_v + max_v) * 0.5;  // middle between min and max

			// Convert as many sample blocks as we can
			while ((end_sample - i) > block_size) {
				const float* asamples = asegment->get_samples(i, i + block_size);
				for (uint32_t j = 0; j < block_size; j++)
					lsamples.push_back(convert_a2l_threshold(threshold, asamples[j]));
				lsegment->append_payload(lsamples.data(), lsamples.size());
				i += block_size;
				lsamples.clear();
				delete[] asamples;
			}

			// Convert remaining samples
			const float* asamples = asegment->get_samples(i, end_sample);
			for (uint32_t j = 0; j < (end_sample - i); j++)
				lsamples.push_back(convert_a2l_threshold(threshold, asamples[j]));
			lsegment->append_payload(lsamples.data(), lsamples.size());
			delete[] asamples;

			samples_added(lsegment, start_sample, end_sample);
		}

		if (conversion_type_ == A2LConversionBySchmittTrigger) {
			const float amplitude = max_v - min_v;
			const float lo_thr = min_v + (amplitude * 0.1);  // 10% above min
			const float hi_thr = max_v - (amplitude * 0.1);  // 10% below max
			uint8_t state = 0;  // TODO Use value of logic sample n-1 instead of 0

			// Convert as many sample blocks as we can
			while ((end_sample - i) > block_size) {
				const float* asamples = asegment->get_samples(i, i + block_size);
				for (uint32_t j = 0; j < block_size; j++)
					lsamples.push_back(convert_a2l_schmitt_trigger(lo_thr, hi_thr, asamples[j], state));
				lsegment->append_payload(lsamples.data(), lsamples.size());
				i += block_size;
				lsamples.clear();
				delete[] asamples;
			}

			// Convert remaining samples
			const float* asamples = asegment->get_samples(i, end_sample);
			for (uint32_t j = 0; j < (end_sample - i); j++)
				lsamples.push_back(convert_a2l_schmitt_trigger(lo_thr, hi_thr, asamples[j], state));
			lsegment->append_payload(lsamples.data(), lsamples.size());
			delete[] asamples;

			samples_added(lsegment, start_sample, end_sample);
		}
	}
}

void SignalBase::on_samples_cleared()
{
	if (converted_data_)
		converted_data_->clear();

	samples_cleared();
}

void SignalBase::on_samples_added(QObject* segment, uint64_t start_sample,
	uint64_t end_sample)
{
	(void)segment;
	(void)start_sample;
	(void)end_sample;

	if (conversion_type_ != NoConversion) {

		// Wait for the currently ongoing conversion to finish
		if (conversion_thread_.joinable())
			conversion_thread_.join();

		conversion_thread_ = std::thread(
			&SignalBase::conversion_thread_proc, this,
			segment, start_sample, end_sample);
	}

	samples_added(segment, start_sample, end_sample);
}

void SignalBase::on_capture_state_changed(int state)
{
	return;
	if (state == Session::Stopped) {
		// Make sure that all data is converted

		if ((channel_type_ == AnalogChannel) &&
			((conversion_type_ == A2LConversionByTreshold) ||
			(conversion_type_ == A2LConversionBySchmittTrigger))) {

			shared_ptr<Analog> analog_data = dynamic_pointer_cast<Analog>(data_);

			if (analog_data->analog_segments().size() > 0) {
				// TODO Support for multiple segments is missing
				AnalogSegment *asegment = analog_data->analog_segments().front().get();

				if (conversion_thread_.joinable())
					conversion_thread_.join();

				conversion_thread_ = std::thread(
					&SignalBase::conversion_thread_proc, this, asegment, 0, 0);
			}
		}
	}
}

} // namespace data
} // namespace pv
Commit	Line	Data
bf0edd2b SA	1	/*
	2	* This file is part of the PulseView project.
	3	*
	4	* Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
	5	* Copyright (C) 2016 Soeren Apel <soeren@apelpie.net>
	6	*
	7	* This program is free software; you can redistribute it and/or modify
	8	* it under the terms of the GNU General Public License as published by
	9	* the Free Software Foundation; either version 2 of the License, or
	10	* (at your option) any later version.
	11	*
	12	* This program is distributed in the hope that it will be useful,
	13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	* GNU General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU General Public License
efdec55a	18	* along with this program; if not, see <http://www.gnu.org/licenses/>.
bf0edd2b SA	19	*/
bf0edd2b SA	20
cbd2a2de	21	#include "analog.hpp"
12ea3616	22	#include "analogsegment.hpp"
aca9aa83	23	#include "decode/row.hpp"
cbd2a2de	24	#include "logic.hpp"
12ea3616	25	#include "logicsegment.hpp"
bf0edd2b	26	#include "signalbase.hpp"
cbd2a2de	27	#include "signaldata.hpp"
bb7dd726 SA	28
bb7dd726 SA	29	#include <pv/binding/decoder.hpp>
aca9aa83	30	#include <pv/session.hpp>
bf0edd2b	31
cbd2a2de	32	using std::dynamic_pointer_cast;
12ea3616	33	using std::make_shared;
bf0edd2b	34	using std::shared_ptr;
12ea3616	35	using std::tie;
bf0edd2b SA	36
	37	namespace pv {
	38	namespace data {
	39
c063290a	40	const int SignalBase::ColourBGAlpha = 8 * 256 / 100;
bf0edd2b	41
472a80c5 SA	42	SignalBase::SignalBase(shared_ptr<sigrok::Channel> channel, ChannelType channel_type) :
472a80c5 SA	43	channel_(channel),
12ea3616 SA	44	channel_type_(channel_type),
12ea3616 SA	45	conversion_type_(NoConversion)
bf0edd2b	46	{
050b5a6c SA	47	if (channel_)
050b5a6c SA	48	internal_name_ = QString::fromStdString(channel_->name());
bf0edd2b SA	49	}
bf0edd2b SA	50
12ea3616 SA	51	SignalBase::~SignalBase()
	52	{
	53	// Wait for the currently ongoing conversion to finish
	54	if (conversion_thread_.joinable())
	55	conversion_thread_.join();
	56	}
	57
bf0edd2b SA	58	shared_ptr<sigrok::Channel> SignalBase::channel() const
	59	{
	60	return channel_;
	61	}
	62
	63	QString SignalBase::name() const
	64	{
	65	return (channel_) ? QString::fromStdString(channel_->name()) : name_;
	66	}
	67
050b5a6c SA	68	QString SignalBase::internal_name() const
	69	{
	70	return internal_name_;
	71	}
	72
bf0edd2b SA	73	void SignalBase::set_name(QString name)
	74	{
	75	if (channel_)
	76	channel_->set_name(name.toUtf8().constData());
	77
	78	name_ = name;
	79
	80	name_changed(name);
	81	}
	82
	83	bool SignalBase::enabled() const
	84	{
	85	return (channel_) ? channel_->enabled() : true;
	86	}
	87
	88	void SignalBase::set_enabled(bool value)
	89	{
	90	if (channel_) {
	91	channel_->set_enabled(value);
	92	enabled_changed(value);
	93	}
	94	}
	95
472a80c5	96	SignalBase::ChannelType SignalBase::type() const
bf0edd2b	97	{
472a80c5	98	return channel_type_;
bf0edd2b SA	99	}
	100
	101	unsigned int SignalBase::index() const
	102	{
	103	return (channel_) ? channel_->index() : (unsigned int)-1;
	104	}
	105
	106	QColor SignalBase::colour() const
	107	{
	108	return colour_;
	109	}
	110
	111	void SignalBase::set_colour(QColor colour)
	112	{
	113	colour_ = colour;
	114
	115	bgcolour_ = colour;
	116	bgcolour_.setAlpha(ColourBGAlpha);
	117
	118	colour_changed(colour);
	119	}
	120
	121	QColor SignalBase::bgcolour() const
	122	{
	123	return bgcolour_;
	124	}
	125
cbd2a2de SA	126	void SignalBase::set_data(shared_ptr<pv::data::SignalData> data)
cbd2a2de SA	127	{
12ea3616 SA	128	if (data_ && channel_type_ == AnalogChannel) {
	129	shared_ptr<Analog> analog_data = dynamic_pointer_cast<Analog>(data_);
	130
	131	disconnect(analog_data.get(), SIGNAL(samples_cleared()),
	132	this, SLOT(on_samples_cleared()));
	133	disconnect(analog_data.get(), SIGNAL(samples_added(QObject*, uint64_t, uint64_t)),
	134	this, SLOT(on_samples_added(QObject*, uint64_t, uint64_t)));
	135	}
	136
cbd2a2de	137	data_ = data;
12ea3616 SA	138
	139	if (data_ && channel_type_ == AnalogChannel) {
	140	shared_ptr<Analog> analog_data = dynamic_pointer_cast<Analog>(data_);
	141
	142	connect(analog_data.get(), SIGNAL(samples_cleared()),
	143	this, SLOT(on_samples_cleared()));
	144	connect(analog_data.get(), SIGNAL(samples_added(QObject*, uint64_t, uint64_t)),
	145	this, SLOT(on_samples_added(QObject*, uint64_t, uint64_t)));
	146	}
cbd2a2de SA	147	}
	148
	149	shared_ptr<data::Analog> SignalBase::analog_data() const
	150	{
12ea3616 SA	151	shared_ptr<Analog> result = nullptr;
12ea3616 SA	152
472a80c5	153	if (channel_type_ == AnalogChannel)
12ea3616 SA	154	result = dynamic_pointer_cast<Analog>(data_);
	155
	156	return result;
cbd2a2de SA	157	}
	158
	159	shared_ptr<data::Logic> SignalBase::logic_data() const
	160	{
12ea3616 SA	161	shared_ptr<Logic> result = nullptr;
12ea3616 SA	162
472a80c5	163	if (channel_type_ == LogicChannel)
12ea3616 SA	164	result = dynamic_pointer_cast<Logic>(data_);
	165
	166	if (((conversion_type_ == A2LConversionByTreshold) \|\|
	167	(conversion_type_ == A2LConversionBySchmittTrigger)))
	168	result = dynamic_pointer_cast<Logic>(converted_data_);
	169
	170	return result;
	171	}
	172
	173	void SignalBase::set_conversion_type(ConversionType t)
	174	{
	175	if (conversion_type_ != NoConversion) {
	176	// Wait for the currently ongoing conversion to finish
	177	if (conversion_thread_.joinable())
	178	conversion_thread_.join();
	179
	180	// Discard converted data
	181	converted_data_.reset();
	182	}
	183
	184	conversion_type_ = t;
	185
	186	if ((channel_type_ == AnalogChannel) &&
	187	((conversion_type_ == A2LConversionByTreshold) \|\|
	188	(conversion_type_ == A2LConversionBySchmittTrigger))) {
	189
	190	shared_ptr<Analog> analog_data = dynamic_pointer_cast<Analog>(data_);
	191
	192	if (analog_data->analog_segments().size() > 0) {
	193	AnalogSegment *asegment = analog_data->analog_segments().front().get();
	194
	195	// Begin conversion of existing sample data
	196	// TODO Support for multiple segments is missing
	197	on_samples_added(asegment, 0, 0);
	198	}
	199	}
	200
	201	conversion_type_changed(t);
cbd2a2de SA	202	}
cbd2a2de SA	203
bb7dd726 SA	204	#ifdef ENABLE_DECODE
	205	bool SignalBase::is_decode_signal() const
	206	{
	207	return (decoder_stack_ != nullptr);
	208	}
	209
6f925ba9	210	shared_ptr<pv::data::DecoderStack> SignalBase::decoder_stack() const
bb7dd726 SA	211	{
	212	return decoder_stack_;
	213	}
	214
6f925ba9	215	void SignalBase::set_decoder_stack(shared_ptr<pv::data::DecoderStack>
bb7dd726 SA	216	decoder_stack)
	217	{
	218	decoder_stack_ = decoder_stack;
	219	}
	220	#endif
cbd2a2de	221
6de38b17 SA	222	void SignalBase::save_settings(QSettings &settings) const
	223	{
	224	settings.setValue("name", name());
	225	settings.setValue("enabled", enabled());
	226	settings.setValue("colour", colour());
12ea3616	227	settings.setValue("conversion_type", (int)conversion_type_);
6de38b17 SA	228	}
	229
	230	void SignalBase::restore_settings(QSettings &settings)
	231	{
	232	set_name(settings.value("name").toString());
	233	set_enabled(settings.value("enabled").toBool());
	234	set_colour(settings.value("colour").value<QColor>());
12ea3616 SA	235	set_conversion_type((ConversionType)settings.value("conversion_type").toInt());
	236	}
	237
	238	uint8_t SignalBase::convert_a2l_threshold(float threshold, float value)
	239	{
	240	return (value >= threshold) ? 1 : 0;
	241	}
	242
5d9fe823 SA	243	uint8_t SignalBase::convert_a2l_schmitt_trigger(float lo_thr, float hi_thr,
5d9fe823 SA	244	float value, uint8_t &state)
12ea3616	245	{
12ea3616 SA	246	if (value < lo_thr)
	247	state = 0;
	248	else if (value > hi_thr)
	249	state = 1;
	250
	251	return state;
	252	}
	253
	254	void SignalBase::conversion_thread_proc(QObject* segment, uint64_t start_sample,
	255	uint64_t end_sample)
	256	{
	257	const uint64_t block_size = 4096;
	258
	259	// TODO Support for multiple segments is missing
	260
	261	if ((channel_type_ == AnalogChannel) &&
	262	((conversion_type_ == A2LConversionByTreshold) \|\|
	263	(conversion_type_ == A2LConversionBySchmittTrigger))) {
	264
	265	AnalogSegment asegment = qobject_cast<AnalogSegment>(segment);
	266
	267	// Create the logic data container if needed
	268	shared_ptr<Logic> logic_data;
	269	if (!converted_data_) {
	270	logic_data = make_shared<Logic>(1); // Contains only one channel
	271	converted_data_ = logic_data;
	272	} else
	273	logic_data = dynamic_pointer_cast<Logic>(converted_data_);
	274
	275	// Create the initial logic data segment if needed
	276	if (logic_data->segments().size() == 0) {
	277	shared_ptr<LogicSegment> lsegment =
	278	make_shared<LogicSegment>(*logic_data.get(), 1, asegment->samplerate());
	279	logic_data->push_segment(lsegment);
	280	}
	281
	282	LogicSegment lsegment = dynamic_cast<LogicSegment>(logic_data->segments().front().get());
	283
	284	// start_sample=end_sample=0 means we need to figure out the unprocessed range
	285	if ((start_sample == 0) && (end_sample == 0)) {
	286	start_sample = lsegment->get_sample_count();
	287	end_sample = asegment->get_sample_count();
	288	}
	289
	290	if (start_sample == end_sample)
	291	return; // Nothing to do
	292
	293	float min_v, max_v;
	294	tie(min_v, max_v) = asegment->get_min_max();
	295
	296	vector<uint8_t> lsamples;
	297	lsamples.reserve(block_size);
	298
	299	uint64_t i = start_sample;
	300
	301	if (conversion_type_ == A2LConversionByTreshold) {
	302	const float threshold = (min_v + max_v) * 0.5; // middle between min and max
	303
	304	// Convert as many sample blocks as we can
	305	while ((end_sample - i) > block_size) {
	306	const float* asamples = asegment->get_samples(i, i + block_size);
	307	for (uint32_t j = 0; j < block_size; j++)
	308	lsamples.push_back(convert_a2l_threshold(threshold, asamples[j]));
	309	lsegment->append_payload(lsamples.data(), lsamples.size());
310	i += block_size;
311	lsamples.clear();
312	delete[] asamples;
313	}
314
315	// Convert remaining samples
316	const float* asamples = asegment->get_samples(i, end_sample);
317	for (uint32_t j = 0; j < (end_sample - i); j++)
318	lsamples.push_back(convert_a2l_threshold(threshold, asamples[j]));
319	lsegment->append_payload(lsamples.data(), lsamples.size());
320	delete[] asamples;
eae3bbbb SA	321
eae3bbbb SA	322	samples_added(lsegment, start_sample, end_sample);
12ea3616 SA	323	}
	324
	325	if (conversion_type_ == A2LConversionBySchmittTrigger) {
	326	const float amplitude = max_v - min_v;
	327	const float lo_thr = min_v + (amplitude * 0.1); // 10% above min
	328	const float hi_thr = max_v - (amplitude * 0.1); // 10% below max
5d9fe823	329	uint8_t state = 0; // TODO Use value of logic sample n-1 instead of 0
12ea3616 SA	330
	331	// Convert as many sample blocks as we can
	332	while ((end_sample - i) > block_size) {
	333	const float* asamples = asegment->get_samples(i, i + block_size);
	334	for (uint32_t j = 0; j < block_size; j++)
5d9fe823	335	lsamples.push_back(convert_a2l_schmitt_trigger(lo_thr, hi_thr, asamples[j], state));
12ea3616 SA	336	lsegment->append_payload(lsamples.data(), lsamples.size());
	337	i += block_size;
	338	lsamples.clear();
	339	delete[] asamples;
	340	}
	341
	342	// Convert remaining samples
	343	const float* asamples = asegment->get_samples(i, end_sample);
	344	for (uint32_t j = 0; j < (end_sample - i); j++)
5d9fe823	345	lsamples.push_back(convert_a2l_schmitt_trigger(lo_thr, hi_thr, asamples[j], state));
12ea3616 SA	346	lsegment->append_payload(lsamples.data(), lsamples.size());
12ea3616 SA	347	delete[] asamples;
eae3bbbb SA	348
eae3bbbb SA	349	samples_added(lsegment, start_sample, end_sample);
12ea3616 SA	350	}
	351	}
	352	}
	353
	354	void SignalBase::on_samples_cleared()
	355	{
	356	if (converted_data_)
	357	converted_data_->clear();
eae3bbbb SA	358
eae3bbbb SA	359	samples_cleared();
12ea3616 SA	360	}
	361
	362	void SignalBase::on_samples_added(QObject* segment, uint64_t start_sample,
	363	uint64_t end_sample)
	364	{
	365	(void)segment;
	366	(void)start_sample;
	367	(void)end_sample;
	368
	369	if (conversion_type_ != NoConversion) {
	370
	371	// Wait for the currently ongoing conversion to finish
	372	if (conversion_thread_.joinable())
	373	conversion_thread_.join();
	374
	375	conversion_thread_ = std::thread(
	376	&SignalBase::conversion_thread_proc, this,
	377	segment, start_sample, end_sample);
	378	}
eae3bbbb SA	379
eae3bbbb SA	380	samples_added(segment, start_sample, end_sample);
12ea3616 SA	381	}
	382
	383	void SignalBase::on_capture_state_changed(int state)
	384	{
	385	return;
	386	if (state == Session::Stopped) {
	387	// Make sure that all data is converted
	388
	389	if ((channel_type_ == AnalogChannel) &&
	390	((conversion_type_ == A2LConversionByTreshold) \|\|
	391	(conversion_type_ == A2LConversionBySchmittTrigger))) {
	392
	393	shared_ptr<Analog> analog_data = dynamic_pointer_cast<Analog>(data_);
	394
	395	if (analog_data->analog_segments().size() > 0) {
	396	// TODO Support for multiple segments is missing
	397	AnalogSegment *asegment = analog_data->analog_segments().front().get();
	398
	399	if (conversion_thread_.joinable())
	400	conversion_thread_.join();
	401
	402	conversion_thread_ = std::thread(
	403	&SignalBase::conversion_thread_proc, this, asegment, 0, 0);
	404	}
	405	}
	406	}
6de38b17 SA	407	}
6de38b17 SA	408
bf0edd2b SA	409	} // namespace data
bf0edd2b SA	410	} // namespace pv