2 * This file is part of the PulseView project.
4 * Copyright (C) 2013 Joel Holdsworth <joel@airwebreathe.org.uk>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, see <http://www.gnu.org/licenses/>.
24 #include <libsigrokcxx/libsigrokcxx.hpp>
25 #include <libsigrokdecode/libsigrokdecode.h>
27 #include "decoder.hpp"
29 #include <pv/data/signalbase.hpp>
30 #include <pv/data/decodesignal.hpp>
39 Decoder::Decoder(const srd_decoder *const dec) :
42 decoder_inst_(nullptr)
44 // Query the annotation output classes
46 for (GSList *l = dec->annotations; l; l = l->next) {
47 char **ann_class = (char**)l->data;
48 char *name = ann_class[0];
49 char *desc = ann_class[1];
50 ann_classes_.push_back({i++, name, desc, nullptr, true}); // Visible by default
53 // Query the binary output classes
55 for (GSList *l = dec->binary; l; l = l->next) {
56 char **bin_class = (char**)l->data;
57 char *name = bin_class[0];
58 char *desc = bin_class[1];
59 bin_classes_.push_back({i++, name, desc});
62 // Query the annotation rows and reference them by the classes that use them
63 uint32_t row_count = 0;
64 for (const GSList *rl = srd_decoder_->annotation_rows; rl; rl = rl->next)
66 rows_.reserve(row_count);
69 for (const GSList *rl = srd_decoder_->annotation_rows; rl; rl = rl->next) {
70 const srd_decoder_annotation_row *const srd_row = (srd_decoder_annotation_row *)rl->data;
72 rows_.push_back({i++, this, srd_row});
74 // FIXME PV can crash from .at() if a PD's ann classes are defined incorrectly
75 for (const GSList *cl = srd_row->ann_classes; cl; cl = cl->next)
76 ann_classes_.at((size_t)cl->data).row = &(rows_.back());
80 // Make sure there is a row for PDs without row declarations
81 rows_.emplace_back(0, this);
86 for (auto& option : options_)
87 g_variant_unref(option.second);
90 const srd_decoder* Decoder::get_srd_decoder() const
95 const char* Decoder::name() const
97 return srd_decoder_->name;
100 bool Decoder::shown() const
105 void Decoder::show(bool show)
110 const vector<DecodeChannel*>& Decoder::channels() const
115 void Decoder::set_channels(vector<DecodeChannel*> channels)
117 channels_ = channels;
120 const map<string, GVariant*>& Decoder::options() const
125 void Decoder::set_option(const char *id, GVariant *value)
128 g_variant_ref(value);
129 options_[id] = value;
131 // If we have a decoder instance, apply option value immediately
135 void Decoder::apply_all_options()
138 GHashTable *const opt_hash = g_hash_table_new_full(g_str_hash,
139 g_str_equal, g_free, (GDestroyNotify)g_variant_unref);
141 for (const auto& option : options_) {
142 GVariant *const value = option.second;
143 g_variant_ref(value);
144 g_hash_table_replace(opt_hash, (void*)g_strdup(
145 option.first.c_str()), value);
148 srd_inst_option_set(decoder_inst_, opt_hash);
149 g_hash_table_destroy(opt_hash);
153 bool Decoder::have_required_channels() const
155 for (DecodeChannel *ch : channels_)
156 if (!ch->assigned_signal && !ch->is_optional)
162 srd_decoder_inst* Decoder::create_decoder_inst(srd_session *session)
164 GHashTable *const opt_hash = g_hash_table_new_full(g_str_hash,
165 g_str_equal, g_free, (GDestroyNotify)g_variant_unref);
167 for (const auto& option : options_) {
168 GVariant *const value = option.second;
169 g_variant_ref(value);
170 g_hash_table_replace(opt_hash, (void*)g_strdup(
171 option.first.c_str()), value);
175 qDebug() << "WARNING: previous decoder instance" << decoder_inst_ << "exists";
177 decoder_inst_ = srd_inst_new(session, srd_decoder_->id, opt_hash);
178 g_hash_table_destroy(opt_hash);
183 // Setup the channels
184 GArray *const init_pin_states = g_array_sized_new(false, true,
185 sizeof(uint8_t), channels_.size());
187 g_array_set_size(init_pin_states, channels_.size());
189 GHashTable *const channels = g_hash_table_new_full(g_str_hash,
190 g_str_equal, g_free, (GDestroyNotify)g_variant_unref);
192 for (DecodeChannel *ch : channels_) {
193 if (!ch->assigned_signal)
196 init_pin_states->data[ch->id] = ch->initial_pin_state;
198 GVariant *const gvar = g_variant_new_int32(ch->bit_id); // bit_id = bit position
199 g_variant_ref_sink(gvar);
200 // key is channel name (pdch->id), value is bit position in each sample (gvar)
201 g_hash_table_insert(channels, ch->pdch_->id, gvar);
204 srd_inst_channel_set_all(decoder_inst_, channels);
206 srd_inst_initial_pins_set_all(decoder_inst_, init_pin_states);
207 g_array_free(init_pin_states, true);
209 return decoder_inst_;
212 void Decoder::invalidate_decoder_inst()
214 decoder_inst_ = nullptr;
217 vector<Row*> Decoder::get_rows()
221 for (Row& row : rows_)
222 result.push_back(&row);
227 Row* Decoder::get_row_by_id(size_t id)
229 if (id > rows_.size())
235 vector<const AnnotationClass*> Decoder::ann_classes() const
237 vector<const AnnotationClass*> result;
239 for (const AnnotationClass& c : ann_classes_)
240 result.push_back(&c);
245 AnnotationClass* Decoder::get_ann_class_by_id(size_t id)
247 if (id >= ann_classes_.size())
250 return &(ann_classes_[id]);
253 uint32_t Decoder::get_binary_class_count() const
255 return bin_classes_.size();
258 const DecodeBinaryClassInfo* Decoder::get_binary_class(uint32_t id) const
260 return &(bin_classes_.at(id));
263 } // namespace decode