forked from Ivasoft/DSView
381 lines
12 KiB
C++
381 lines
12 KiB
C++
/*
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* This file is part of the DSLogic-gui project.
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* DSLogic-gui is based on PulseView.
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*
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* Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
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* Copyright (C) 2013 DreamSourceLab <dreamsourcelab@dreamsourcelab.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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "dsdmx512.h"
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#include <math.h>
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using namespace boost;
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using namespace std;
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namespace pv {
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namespace decoder {
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const QColor dsDmx512::ColorTable[TableSize] = {
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QColor(255, 255, 255, 150),
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QColor(0, 255, 0, 150),
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QColor(255, 0, 0, 150),
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QColor(0, 255, 0, 150),
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QColor(255, 0, 0, 150),
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QColor(0, 0, 255, 150),
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QColor(0, 0, 255, 150),
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QColor(0, 255, 255, 150),
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};
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const QString dsDmx512::StateTable[TableSize] = {
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"UNKNOWN",
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"BREAK",
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"MAB",
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"START",
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"START CODE",
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"STOP",
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"MARK",
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"SLOT"
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};
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dsDmx512::dsDmx512(boost::shared_ptr<data::Logic> data, std::list <int > _sel_probes, QMap<QString, QVariant> &_options, QMap<QString, int> _options_index) :
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Decoder(data, _sel_probes, _options_index)
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{
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(void)_options;
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assert(_sel_probes.size() == 1);
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_dmx_index = _sel_probes.front();
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}
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dsDmx512::~dsDmx512()
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{
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}
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QString dsDmx512::get_decode_name()
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{
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return "DMX512";
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}
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void dsDmx512::recode(std::list <int > _sel_probes, QMap <QString, QVariant>& _options, QMap<QString, int> _options_index)
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{
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(void)_options;
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assert(_sel_probes.size() == 1);
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_dmx_index = _sel_probes.front();
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this->_sel_probes = _sel_probes;
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this->_options_index = _options_index;
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decode();
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}
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void dsDmx512::decode()
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{
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assert(_data);
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_max_width = 0;
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uint8_t cur_state = Unknown;
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const deque< boost::shared_ptr<pv::data::LogicSnapshot> > &snapshots =
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_data->get_snapshots();
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if (snapshots.empty())
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return;
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const boost::shared_ptr<pv::data::LogicSnapshot> &snapshot =
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snapshots.front();
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//uint64_t flag_index;
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uint64_t start_index;
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uint64_t stop_index;
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//bool edge;
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uint64_t left = 0;
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uint64_t right = snapshot->get_sample_count() - 1;
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const uint64_t samplerate = _data->get_samplerate();
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double pulse_width;
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bool valid;
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if (!_state_index.empty())
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_state_index.clear();
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while(1)
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{
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// search Break flag
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pulse_width = get_next_pulse_width(0, samplerate, left, right, stop_index, snapshot);
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start_index = left;
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if (pulse_width >= 0.088 && pulse_width <= 1000) { // Break
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cur_state = Break;
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_state_index.push_back(std::make_pair(std::make_pair(start_index, stop_index - start_index), std::make_pair(cur_state, 0)));
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_max_width = max(_max_width, stop_index - start_index);
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} else if (pulse_width == 0){
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break;
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} else {
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continue;
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}
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if (cur_state == Break) {
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pulse_width = get_next_pulse_width(1, samplerate, left, right, stop_index, snapshot);
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start_index = left;
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if (pulse_width >= 0.012 && pulse_width <= 1000) { // Marker After Break
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cur_state = Mab;
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_state_index.push_back(std::make_pair(std::make_pair(start_index, stop_index - start_index), std::make_pair(cur_state, 0)));
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_max_width = max(_max_width, stop_index - start_index);
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} else {
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continue;
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}
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}
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if (cur_state == Mab) {
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get_next_data(true, valid, cur_state, samplerate, left, right, snapshot);
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}
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while(valid)
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get_next_data(false, valid, cur_state, samplerate, left, right, snapshot);
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}
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}
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double dsDmx512::get_next_pulse_width(bool level, uint64_t samplerate, uint64_t &left, uint64_t right, uint64_t &end,
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const boost::shared_ptr<data::LogicSnapshot> &snapshot)
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{
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double pulse_width = 0;
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uint64_t flag_index1;
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uint64_t flag_index2;
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bool edge1;
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bool edge2;
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if (snapshot->get_first_edge(flag_index1, edge1, left, right, _dmx_index, level, _dmx_index, -1) == SR_OK) {
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left = flag_index1;
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if (snapshot->get_first_edge(flag_index2, edge2, left, right, _dmx_index, !level, _dmx_index, -1) == SR_OK) {
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end = flag_index2;
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pulse_width = (flag_index2 - flag_index1) * 1000.0f / samplerate;
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}
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}
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return pulse_width;
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}
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uint8_t dsDmx512::get_next_data(bool code, bool &valid, uint8_t &cur_state,
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uint64_t samplerate, uint64_t &left, uint64_t right,
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const boost::shared_ptr<data::LogicSnapshot> &snapshot)
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{
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uint8_t data = 0;
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double pulse_width;
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uint64_t org_left = left;
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//int i;
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uint64_t samplesPerBit = ceil(samplerate * 0.001 * 0.004);
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const uint64_t dmx_mask = 1ULL << _dmx_index;
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bool edge;
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uint64_t start = left;
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uint64_t end = left;
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const uint8_t *src_ptr;
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const int unit_size = snapshot->get_unit_size();
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valid = false;
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pulse_width = get_next_pulse_width(0, samplerate, left, right, end, snapshot);
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if (pulse_width >= 0.00392 && pulse_width <= 0.00408 * 9) { // Start bit
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org_left = left;
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start = left;
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end = start + samplesPerBit;
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cur_state = Start;
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_state_index.push_back(std::make_pair(std::make_pair(start, end - start), std::make_pair(cur_state, 0)));
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_max_width = max(_max_width, end - start);
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} else {
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left = org_left;
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return data;
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}
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if (cur_state == Start) {
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src_ptr = (uint8_t*)snapshot->get_data();
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start = end;
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data = data + (((*(uint64_t*)(src_ptr + (int)(start + samplesPerBit * 0.5) * unit_size) & dmx_mask) != 0) << 0);
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data = data + (((*(uint64_t*)(src_ptr + (int)(start + samplesPerBit * 1.5) * unit_size) & dmx_mask) != 0) << 1);
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data = data + (((*(uint64_t*)(src_ptr + (int)(start + samplesPerBit * 2.5) * unit_size) & dmx_mask) != 0) << 2);
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data = data + (((*(uint64_t*)(src_ptr + (int)(start + samplesPerBit * 3.5) * unit_size) & dmx_mask) != 0) << 3);
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data = data + (((*(uint64_t*)(src_ptr + (int)(start + samplesPerBit * 4.5) * unit_size) & dmx_mask) != 0) << 4);
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data = data + (((*(uint64_t*)(src_ptr + (int)(start + samplesPerBit * 5.5) * unit_size) & dmx_mask) != 0) << 5);
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data = data + (((*(uint64_t*)(src_ptr + (int)(start + samplesPerBit * 6.5) * unit_size) & dmx_mask) != 0) << 6);
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data = data + (((*(uint64_t*)(src_ptr + (int)(start + samplesPerBit * 7.5) * unit_size) & dmx_mask) != 0) << 7);
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end = start + samplesPerBit * 8;
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cur_state = code ? Scode : Slot;
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_state_index.push_back(std::make_pair(std::make_pair(start, end - start), std::make_pair(cur_state, data)));
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_max_width = max(_max_width, end - start);
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}
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org_left = end;
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left = start + samplesPerBit * 8.5;
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if ((*(uint64_t*)(src_ptr + left * unit_size) & dmx_mask) != 0) {
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if (snapshot->get_first_edge(end, edge, left, right, _dmx_index, 0, _dmx_index, -1) == SR_OK) {
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pulse_width = (end - org_left) * 1000.0f / samplerate;
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if (pulse_width >= 0.008 && pulse_width <= 1000) {
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start = org_left;
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end = start + samplesPerBit * 2;
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cur_state = Stop;
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_state_index.push_back(std::make_pair(std::make_pair(start, end - start), std::make_pair(cur_state, 0)));
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_max_width = max(_max_width, end - start);
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}
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} else {
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left = org_left;
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return data;
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}
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} else {
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return data;
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}
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valid = true;
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return data;
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}
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void dsDmx512::fill_color_table(std::vector <QColor>& _color_table)
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{
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int i;
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for(i = 0; i < TableSize; i++)
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_color_table.push_back(ColorTable[i]);
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}
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void dsDmx512::fill_state_table(std::vector <QString>& _state_table)
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{
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int i;
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for(i = 0; i < TableSize; i++)
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_state_table.push_back(StateTable[i]);
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}
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void dsDmx512::get_subsampled_states(std::vector<struct ds_view_state> &states,
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uint64_t start, uint64_t end,
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float min_length)
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{
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ds_view_state view_state;
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const deque< boost::shared_ptr<pv::data::LogicSnapshot> > &snapshots =
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_data->get_snapshots();
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if (snapshots.empty())
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return;
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const boost::shared_ptr<pv::data::LogicSnapshot> &snapshot =
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snapshots.front();
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assert(end <= snapshot->get_sample_count());
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assert(start <= end);
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assert(min_length > 0);
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if (!states.empty())
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states.clear();
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if (_state_index.empty())
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return;
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if (start > _state_index.at(_state_index.size() - 1).first.first)
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return;
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if (end < _state_index.at(0).first.first)
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return;
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if (min_length * _view_scale > _max_width) {
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view_state.index = _state_index.at(0).first.first;
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view_state.samples = _state_index.at(_state_index.size() - 1).first.first +
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_state_index.at(_state_index.size() - 1).first.second - _state_index.at(0).first.first;
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view_state.type = DEC_NODETAIL;
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view_state.state = 0;
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view_state.data = 0;
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states.push_back(view_state);
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return;
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}
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uint64_t view_start = 0;
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uint64_t view_end = 0;
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uint64_t minIndex = 0;
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uint64_t maxIndex = _state_index.size() - 1;
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uint64_t i = start * 1.0f / snapshot->get_sample_count() * maxIndex;
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bool check_flag = false;
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int times = 0;
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while(times <= 32) {
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if (_state_index.at(i).first.first + _state_index.at(i).first.second >= start) {
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check_flag = true;
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} else {
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minIndex = i;
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i = ceil((i + maxIndex) / 2.0f);
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}
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if (check_flag) {
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if (i == 0) {
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view_start = i;
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break;
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} else if (_state_index.at(i-1).first.first + _state_index.at(i-1).first.second < start) {
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view_start = i;
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break;
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} else {
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maxIndex = i;
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i = (i + minIndex) / 2;
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}
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check_flag = false;
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}
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times++;
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}
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i = view_start;
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check_flag = false;
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times = 0;
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minIndex = view_start;
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//maxIndex = _state_index.size() - 1;
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maxIndex = min(_state_index.size() - 1, (size_t)end);
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view_end = view_start;
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while(times <= 32) {
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if (_state_index.at(i).first.first <= end) {
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check_flag = true;
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} else {
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maxIndex = i;
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i = (i + minIndex) / 2;
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}
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if (check_flag) {
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if (i == maxIndex) {
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view_end = i;
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break;
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} else if (_state_index.at(i+1).first.first > end) {
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view_end = i;
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break;
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} else {
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minIndex = i;
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i = ceil((i + maxIndex) / 2.0f);
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}
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check_flag = false;
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}
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times++;
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}
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assert(view_end >= view_start);
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for (uint64_t i = view_start; i <= view_end; i++) {
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if (_state_index.at(i).first.second >= min_length * _view_scale) {
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view_state.index = _state_index.at(i).first.first;
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view_state.samples = _state_index.at(i).first.second;
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view_state.type = (_state_index.at(i).second.first == Slot) ? DEC_CNT :
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(_state_index.at(i).second.first == Scode) ? DEC_DATA : DEC_CMD;
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view_state.state = _state_index.at(i).second.first;
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view_state.data = _state_index.at(i).second.second;
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states.push_back(view_state);
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} else {
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view_state.index = _state_index.at(i).first.first;
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view_state.samples = _state_index.at(i).first.second;
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view_state.type = DEC_NODETAIL;
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view_state.state = 0;
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view_state.data = 0;
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states.push_back(view_state);
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}
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}
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}
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} // namespace decoder
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} // namespace pv
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