]> sigrok.org Git - pulseview.git/blobdiff - pv/data/signalbase.hpp
Session: Fix issue #67 by improving error handling
[pulseview.git] / pv / data / signalbase.hpp
index 468a2032812cba3b7611f1d6cf5dcfa718fe0bc5..19f8143dc77e3499a92ecb0d17fb07fe411605be 100644 (file)
 #define PULSEVIEW_PV_DATA_SIGNALBASE_HPP
 
 #include <atomic>
+#include <deque>
 #include <condition_variable>
 #include <thread>
+#include <vector>
 
 #include <QColor>
 #include <QObject>
 #include <QSettings>
 #include <QString>
+#include <QTimer>
+#include <QVariant>
 
 #include <libsigrokcxx/libsigrokcxx.hpp>
 
+#include "segment.hpp"
+
 using std::atomic;
 using std::condition_variable;
+using std::deque;
+using std::enable_shared_from_this;
+using std::map;
 using std::mutex;
+using std::pair;
 using std::shared_ptr;
+using std::vector;
 
 namespace sigrok {
 class Channel;
@@ -45,32 +56,70 @@ namespace pv {
 namespace data {
 
 class Analog;
+class AnalogSegment;
 class DecoderStack;
 class Logic;
+class LogicSegment;
+class Segment;
+class SignalBase;
 class SignalData;
 
-class SignalBase : public QObject
+class SignalGroup : public QObject
+{
+       Q_OBJECT
+
+public:
+       SignalGroup(const QString& name);
+
+       void append_signal(shared_ptr<SignalBase> signal);
+       void remove_signal(shared_ptr<SignalBase> signal);
+       deque<shared_ptr<SignalBase>> signals() const;
+       void clear();
+
+       const QString name() const;
+
+private:
+       deque<shared_ptr<SignalBase>> signals_;
+       QString name_;
+};
+
+
+class SignalBase : public QObject, public enable_shared_from_this<SignalBase>
 {
        Q_OBJECT
+       Q_PROPERTY(QString error_message READ get_error_message NOTIFY error_message_changed)
 
 public:
        enum ChannelType {
-               AnalogChannel = 1,
-               LogicChannel,
-               DecodeChannel,
-               A2LChannel,  // Analog converted to logic, joint representation
-               MathChannel
+               AnalogChannel = 1, ///< Analog data
+               LogicChannel,  ///< Logic data
+               DecodeChannel, ///< Protocol Decoder channel using libsigrokdecode
+               MathChannel    ///< Virtual channel generated by math operations
        };
 
        enum ConversionType {
                NoConversion = 0,
-               A2LConversionByTreshold = 1,
+               A2LConversionByThreshold = 1,
                A2LConversionBySchmittTrigger = 2
        };
 
+       /**
+        * Conversion presets range from -1 to n, where 1..n are dependent on
+        * the conversion these presets apply to. -1 and 0 have fixed meanings,
+        * however.
+        */
+       enum ConversionPreset {
+               NoPreset = -1,     ///< Conversion uses custom values
+               DynamicPreset = 0  ///< Conversion uses calculated values
+       };
+
+       static const QColor AnalogSignalColors[8];
+       static const QColor LogicSignalColors[10];
+
 private:
-       static const int ColourBGAlpha;
+       static const int ColorBGAlpha;
        static const uint64_t ConversionBlockSize;
+       static const uint32_t ConversionDelay;
 
 public:
        SignalBase(shared_ptr<sigrok::Channel> channel, ChannelType channel_type);
@@ -79,9 +128,15 @@ public:
 public:
        /**
         * Returns the underlying SR channel.
+        * Generated channels don't have a SR channel.
         */
        shared_ptr<sigrok::Channel> channel() const;
 
+       /**
+        * Returns whether this channel is generated or a channel associated with the device.
+        */
+       bool is_generated() const;
+
        /**
         * Returns enabled status of this channel.
         */
@@ -104,6 +159,13 @@ public:
         */
        unsigned int index() const;
 
+       /**
+        * Sets the index number of this channel, i.e. a unique ID assigned by
+        * the device driver or the logic bit index (see below).
+        * Only use immediately after creating the signal and leave it untouched after.
+        */
+       void set_index(unsigned int index);
+
        /**
         * Returns which bit of a given sample for this signal represents the
         * signal itself. This is relevant for compound signals like logic,
@@ -112,41 +174,73 @@ public:
         */
        unsigned int logic_bit_index() const;
 
+       /**
+        * Sets the signal group this signal belongs to
+        */
+       void set_group(SignalGroup* group);
+
+       /**
+        * Returns the signal group this signal belongs to or nullptr if none
+        */
+       SignalGroup* group() const;
+
        /**
         * Gets the name of this signal.
         */
        QString name() const;
 
        /**
-        * Gets the internal name of this signal, i.e. how the device calls it.
+        * Gets the internal name of this signal, i.e. how the device/generator calls it.
         */
        QString internal_name() const;
 
+       /**
+        * Sets the internal name of this signal, i.e. how the device/generator calls it.
+        * Only use immediately after creating the signal and leave it untouched after.
+        */
+       void set_internal_name(QString internal_name);
+
+       /**
+        * Produces a string for this signal that can be used for display,
+        * i.e. it contains one or both of the signal/internal names.
+        */
+       QString display_name() const;
+
        /**
         * Sets the name of the signal.
         */
        virtual void set_name(QString name);
 
        /**
-        * Get the colour of the signal.
+        * Get the color of the signal.
         */
-       QColor colour() const;
+       QColor color() const;
 
        /**
-        * Set the colour of the signal.
+        * Set the color of the signal.
         */
-       void set_colour(QColor colour);
+       virtual void set_color(QColor color);
 
        /**
-        * Get the background colour of the signal.
+        * Get the background color of the signal.
         */
-       QColor bgcolour() const;
+       QColor bgcolor() const;
+
+       /**
+        * Returns the current error message text.
+        */
+       virtual QString get_error_message() const;
 
        /**
         * Sets the internal data object.
         */
        void set_data(shared_ptr<pv::data::SignalData> data);
 
+       /**
+        * Clears all sample data and removes all associated segments.
+        */
+       void clear_sample_data();
+
        /**
         * Get the internal data as analog data object in case of analog type.
         */
@@ -157,70 +251,184 @@ public:
         */
        shared_ptr<pv::data::Logic> logic_data() const;
 
+       /**
+        * Get the primary internal data object, i.e. the data that was acquired from the device.
+        */
+       shared_ptr<pv::data::SignalData> data() const;
+
+       /**
+        * Determines whether a given segment is complete (i.e. end-of-frame has
+        * been seen). It only considers the original data, not the converted data.
+        */
+       bool segment_is_complete(uint32_t segment_id) const;
+
+       /**
+        * Determines whether this signal has any sample data at all.
+        */
+       bool has_samples() const;
+
+       /**
+        * Returns the sample rate for this signal.
+        */
+       virtual double get_samplerate() const;
+
+       /**
+        * Queries the kind of conversion performed on this channel.
+        */
+       ConversionType get_conversion_type() const;
+
        /**
         * Changes the kind of conversion performed on this channel.
+        *
+        * Restarts the conversion.
         */
        void set_conversion_type(ConversionType t);
 
+       /**
+        * Returns all currently known conversion options
+        */
+       map<QString, QVariant> get_conversion_options() const;
+
+       /**
+        * Sets the value of a particular conversion option
+        * Note: it is not checked whether the option is valid for the
+        * currently conversion. If it's not, it will be silently ignored.
+        *
+        * Does not restart the conversion.
+        *
+        * @return true if the value is different from before, false otherwise
+        */
+       bool set_conversion_option(QString key, QVariant value);
+
+       /**
+        * Returns the threshold(s) used for conversions, if applicable.
+        * The resulting thresholds are given for the chosen conversion, so you
+        * can query thresholds also for conversions which aren't currently active.
+        *
+        * If you want the thresholds for the currently active conversion,
+        * call it either with NoConversion or no parameter.
+        *
+        * @param t the type of conversion to obtain the thresholds for, leave
+        *          empty or use NoConversion if you want to query the currently
+        *          used conversion
+        *
+        * @param always_custom ignore the currently selected preset and always
+        *        return the custom values for this conversion, using 0 if those
+        *        aren't set
+        *
+        * @return a list of threshold(s) used by the chosen conversion
+        */
+       vector<double> get_conversion_thresholds(
+               const ConversionType t = NoConversion, const bool always_custom=false) const;
+
+       /**
+        * Provides all conversion presets available for the currently active
+        * conversion.
+        *
+        * @return a list of description/ID pairs for each preset
+        */
+       vector<pair<QString, int> > get_conversion_presets() const;
+
+       /**
+        * Determines the ID of the currently used conversion preset, which is only
+        * valid for the currently available conversion presets. It is therefore
+        * suggested to call @ref get_conversion_presets right before calling this.
+        *
+        * @return the ID of the currently used conversion preset. -1 if no preset
+        *         is used. In that case, a user setting is used instead.
+        */
+       ConversionPreset get_current_conversion_preset() const;
+
+       /**
+        * Sets the conversion preset to be used.
+        *
+        * Does not restart the conversion.
+        *
+        * @param id the id of the preset to use
+        */
+       void set_conversion_preset(ConversionPreset id);
+
 #ifdef ENABLE_DECODE
        bool is_decode_signal() const;
 #endif
 
        virtual void save_settings(QSettings &settings) const;
-
        virtual void restore_settings(QSettings &settings);
 
+       void start_conversion(bool delayed_start=false);
+
+protected:
+       virtual void set_error_message(QString msg);
+
 private:
+       void stop_conversion();
+
        bool conversion_is_a2l() const;
 
        uint8_t convert_a2l_threshold(float threshold, float value);
        uint8_t convert_a2l_schmitt_trigger(float lo_thr, float hi_thr,
                float value, uint8_t &state);
 
-       void conversion_thread_proc(QObject* segment);
-
-       void start_conversion();
-       void stop_conversion();
+       void convert_single_segment_range(shared_ptr<AnalogSegment> asegment,
+               shared_ptr<LogicSegment> lsegment, uint64_t start_sample, uint64_t end_sample);
+       void convert_single_segment(shared_ptr<AnalogSegment> asegment,
+               shared_ptr<LogicSegment> lsegment);
+       void conversion_thread_proc();
 
 Q_SIGNALS:
        void enabled_changed(const bool &value);
-
        void name_changed(const QString &name);
-
-       void colour_changed(const QColor &colour);
-
+       void color_changed(const QColor &color);
+       void error_message_changed(QString msg);
        void conversion_type_changed(const ConversionType t);
 
        void samples_cleared();
-
-       void samples_added(QObject* segment, uint64_t start_sample,
+       void samples_added(uint64_t segment_id, uint64_t start_sample,
                uint64_t end_sample);
 
+       void min_max_changed(float min, float max);
+
 private Q_SLOTS:
        void on_samples_cleared();
 
-       void on_samples_added(QObject* segment, uint64_t start_sample,
+       void on_samples_added(SharedPtrToSegment segment, uint64_t start_sample,
                uint64_t end_sample);
 
+       void on_input_segment_completed();
+
+       void on_min_max_changed(float min, float max);
+
        void on_capture_state_changed(int state);
 
+       void on_delayed_conversion_start();
+
 protected:
        shared_ptr<sigrok::Channel> channel_;
        ChannelType channel_type_;
+       SignalGroup* group_;
        shared_ptr<pv::data::SignalData> data_;
        shared_ptr<pv::data::SignalData> converted_data_;
-       int conversion_type_;
+       ConversionType conversion_type_;
+       map<QString, QVariant> conversion_options_;
+
+       float min_value_, max_value_;
 
        std::thread conversion_thread_;
        atomic<bool> conversion_interrupt_;
        mutex conversion_input_mutex_;
        condition_variable conversion_input_cond_;
+       QTimer delayed_conversion_starter_;
 
        QString internal_name_, name_;
-       QColor colour_, bgcolour_;
+       QColor color_, bgcolor_;
+       unsigned int index_;
+
+       QString error_message_;
 };
 
 } // namespace data
 } // namespace pv
 
+Q_DECLARE_METATYPE(shared_ptr<pv::data::SignalBase>);
+
 #endif // PULSEVIEW_PV_DATA_SIGNALBASE_HPP