]> sigrok.org Git - pulseview.git/blobdiff - pv/data/decode/decoder.cpp
DecodeSignal: Re-set decoder metadata after stack termination
[pulseview.git] / pv / data / decode / decoder.cpp
index 0404227eeaef48a92da5581e93f29d16e7e42bf7..f86c5d08dc86d9261718ab92e2005b1b30dbd914 100644 (file)
  * 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, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <cassert>
+
+#include <QDebug>
+
+#include <libsigrokcxx/libsigrokcxx.hpp>
 #include <libsigrokdecode/libsigrokdecode.h>
 
-#include "decoder.h"
+#include "decoder.hpp"
 
-#include <pv/view/logicsignal.h>
+#include <pv/data/signalbase.hpp>
+#include <pv/data/decodesignal.hpp>
 
-using boost::shared_ptr;
+using pv::data::DecodeChannel;
 using std::map;
 using std::string;
 
@@ -33,99 +38,140 @@ namespace data {
 namespace decode {
 
 Decoder::Decoder(const srd_decoder *const dec) :
-       _decoder(dec),
-       _shown(true)
+       decoder_(dec),
+       shown_(true),
+       decoder_inst_(nullptr)
 {
 }
 
 Decoder::~Decoder()
 {
-       for (map<string, GVariant*>::const_iterator i = _options.begin();
-               i != _options.end(); i++)
-               g_variant_unref((*i).second);
+       for (auto& option : options_)
+               g_variant_unref(option.second);
 }
 
 const srd_decoder* Decoder::decoder() const
 {
-       return _decoder;
+       return decoder_;
 }
 
 bool Decoder::shown() const
 {
-       return _shown;
+       return shown_;
 }
 
 void Decoder::show(bool show)
 {
-       _shown = show;
+       shown_ = show;
 }
 
-const map<const srd_probe*, shared_ptr<view::LogicSignal> >&
-Decoder::probes() const
+const vector<DecodeChannel*>& Decoder::channels() const
 {
-       return _probes;
+       return channels_;
 }
 
-void Decoder::set_probes(std::map<const srd_probe*,
-       boost::shared_ptr<view::LogicSignal> > probes)
+void Decoder::set_channels(vector<DecodeChannel*> channels)
 {
-       _probes = probes;
+       channels_ = channels;
 }
 
-const std::map<std::string, GVariant*>& Decoder::options() const
+const map<string, GVariant*>& Decoder::options() const
 {
-       return _options;
+       return options_;
 }
 
 void Decoder::set_option(const char *id, GVariant *value)
 {
        assert(value);
        g_variant_ref(value);
-       _options[id] = value;
+       options_[id] = value;
+
+       // If we have a decoder instance, apply option value immediately
+       apply_all_options();
+}
+
+void Decoder::apply_all_options()
+{
+       if (decoder_inst_) {
+               GHashTable *const opt_hash = g_hash_table_new_full(g_str_hash,
+                       g_str_equal, g_free, (GDestroyNotify)g_variant_unref);
+
+               for (const auto& option : options_) {
+                       GVariant *const value = option.second;
+                       g_variant_ref(value);
+                       g_hash_table_replace(opt_hash, (void*)g_strdup(
+                               option.first.c_str()), value);
+               }
+
+               srd_inst_option_set(decoder_inst_, opt_hash);
+               g_hash_table_destroy(opt_hash);
+       }
+}
+
+bool Decoder::have_required_channels() const
+{
+       for (DecodeChannel *ch : channels_)
+               if (!ch->assigned_signal && !ch->is_optional)
+                       return false;
+
+       return true;
 }
 
-srd_decoder_inst* Decoder::create_decoder_inst(
-       srd_session *const session) const
+srd_decoder_inst* Decoder::create_decoder_inst(srd_session *session)
 {
        GHashTable *const opt_hash = g_hash_table_new_full(g_str_hash,
                g_str_equal, g_free, (GDestroyNotify)g_variant_unref);
 
-       for (map<string, GVariant*>::const_iterator i = _options.begin();
-               i != _options.end(); i++)
-       {
-               GVariant *const value = (*i).second;
+       for (const auto& option : options_) {
+               GVariant *const value = option.second;
                g_variant_ref(value);
                g_hash_table_replace(opt_hash, (void*)g_strdup(
-                       (*i).first.c_str()), value);
+                       option.first.c_str()), value);
        }
 
-       srd_decoder_inst *const decoder_inst = srd_inst_new(
-               session, _decoder->id, opt_hash);
+       if (decoder_inst_)
+               qDebug() << "WARNING: previous decoder instance" << decoder_inst_ << "exists";
+
+       decoder_inst_ = srd_inst_new(session, decoder_->id, opt_hash);
        g_hash_table_destroy(opt_hash);
 
-       if(!decoder_inst)
-               return NULL;
+       if (!decoder_inst_)
+               return nullptr;
+
+       // Setup the channels
+       GArray *const init_pin_states = g_array_sized_new(false, true,
+               sizeof(uint8_t), channels_.size());
 
-       // Setup the probes
-       GHashTable *const probes = g_hash_table_new_full(g_str_hash,
+       g_array_set_size(init_pin_states, channels_.size());
+
+       GHashTable *const channels = g_hash_table_new_full(g_str_hash,
                g_str_equal, g_free, (GDestroyNotify)g_variant_unref);
 
-       for(map<const srd_probe*, shared_ptr<view::LogicSignal> >::
-               const_iterator i = _probes.begin();
-               i != _probes.end(); i++)
-       {
-               shared_ptr<view::LogicSignal> signal((*i).second);
-               GVariant *const gvar = g_variant_new_int32(
-                       signal->probe()->index);
+       for (DecodeChannel *ch : channels_) {
+               if (!ch->assigned_signal)
+                       continue;
+
+               init_pin_states->data[ch->id] = ch->initial_pin_state;
+
+               GVariant *const gvar = g_variant_new_int32(ch->bit_id);  // bit_id = bit position
                g_variant_ref_sink(gvar);
-               g_hash_table_insert(probes, (*i).first->id, gvar);
+               // key is channel name (pdch->id), value is bit position in each sample (gvar)
+               g_hash_table_insert(channels, ch->pdch_->id, gvar);
        }
 
-       srd_inst_probe_set_all(decoder_inst, probes);
+       srd_inst_channel_set_all(decoder_inst_, channels);
+
+       srd_inst_initial_pins_set_all(decoder_inst_, init_pin_states);
+       g_array_free(init_pin_states, true);
 
-       return decoder_inst;
+       return decoder_inst_;
+}
+
+void Decoder::invalidate_decoder_inst()
+{
+       decoder_inst_ = nullptr;
 }
 
-} // decode
-} // data
-} // pv
+}  // namespace decode
+}  // namespace data
+}  // namespace pv