X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=blobdiff_plain;f=pv%2Fdata%2Fsignalbase.hpp;h=865f2551662fed2ab137781752c9064191cb698d;hp=8b60c36688dcf6f1665ae8c4c7745bb4b60bcc90;hb=ba5f21864c459a24f71ce3b0045805813c032134;hpb=6f925ba9d6faf1077b73c5a5808259576081716a diff --git a/pv/data/signalbase.hpp b/pv/data/signalbase.hpp index 8b60c366..865f2551 100644 --- a/pv/data/signalbase.hpp +++ b/pv/data/signalbase.hpp @@ -21,18 +21,30 @@ #ifndef PULSEVIEW_PV_DATA_SIGNALBASE_HPP #define PULSEVIEW_PV_DATA_SIGNALBASE_HPP +#include +#include +#include +#include + #include #include #include #include +#include +#include #include +using std::atomic; +using std::condition_variable; +using std::map; +using std::mutex; +using std::pair; using std::shared_ptr; +using std::vector; namespace sigrok { class Channel; -class ChannelType; } namespace pv { @@ -47,12 +59,38 @@ class SignalBase : public QObject { Q_OBJECT +public: + enum ChannelType { + AnalogChannel = 1, ///< Analog data + LogicChannel, ///< Logic data + DecodeChannel, ///< Protocol Decoder channel using libsigrokdecode + MathChannel ///< Virtual channel generated by math operations + }; + + enum ConversionType { + NoConversion = 0, + 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 + }; + private: static const int ColourBGAlpha; + static const uint64_t ConversionBlockSize; + static const uint32_t ConversionDelay; public: - SignalBase(shared_ptr channel); - virtual ~SignalBase() {} + SignalBase(shared_ptr channel, ChannelType channel_type); + virtual ~SignalBase(); public: /** @@ -74,13 +112,22 @@ public: /** * Gets the type of this channel. */ - const sigrok::ChannelType *type() const; + ChannelType type() const; /** - * Gets the index number of this channel. + * Gets the index number of this channel, i.e. a unique ID assigned by + * the device driver. */ unsigned int index() const; + /** + * Returns which bit of a given sample for this signal represents the + * signal itself. This is relevant for compound signals like logic, + * rather meaningless for everything else but provided in case there + * is a conversion active that provides a digital signal using bit #0. + */ + unsigned int logic_bit_index() const; + /** * Gets the name of this signal. */ @@ -126,17 +173,102 @@ public: */ shared_ptr logic_data() 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 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 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 > 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 - shared_ptr decoder_stack() const; + virtual void save_settings(QSettings &settings) const; - void set_decoder_stack(shared_ptr decoder_stack); -#endif + virtual void restore_settings(QSettings &settings); + + void start_conversion(bool delayed_start=false); + +private: + 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 save_settings(QSettings &settings) const; + void conversion_thread_proc(QObject* segment); - void restore_settings(QSettings &settings); + void stop_conversion(); Q_SIGNALS: void enabled_changed(const bool &value); @@ -145,13 +277,42 @@ Q_SIGNALS: void colour_changed(const QColor &colour); -private: + void conversion_type_changed(const ConversionType t); + + void samples_cleared(); + + void samples_added(QObject* segment, 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, + uint64_t end_sample); + + void on_min_max_changed(float min, float max); + + void on_capture_state_changed(int state); + + void on_delayed_conversion_start(); + +protected: shared_ptr channel_; + ChannelType channel_type_; shared_ptr data_; + shared_ptr converted_data_; + ConversionType conversion_type_; + map conversion_options_; -#ifdef ENABLE_DECODE - shared_ptr decoder_stack_; -#endif + float min_value_, max_value_; + + std::thread conversion_thread_; + atomic conversion_interrupt_; + mutex conversion_input_mutex_; + condition_variable conversion_input_cond_; + QTimer delayed_conversion_starter_; QString internal_name_, name_; QColor colour_, bgcolour_;