class SR_API Quantity;
class SR_API Unit;
class SR_API QuantityFlag;
+class SR_API Rational;
class SR_API Input;
class SR_API InputDevice;
class SR_API Output;
public:
/** Pointer to data. */
void *data_pointer();
+ /**
+ * Fills dest pointer with the analog data converted to float.
+ * The pointer must have space for num_samples() floats.
+ */
+ void get_data_as_float(float *dest);
/** Number of samples in this packet. */
unsigned int num_samples() const;
/** Channels for which this packet contains data. */
vector<shared_ptr<Channel> > channels();
+ /** Size of a single sample in bytes. */
+ unsigned int unitsize() const;
+ /** Samples use a signed data type. */
+ bool is_signed() const;
+ /** Samples use float. */
+ bool is_float() const;
+ /** Samples are stored in big-endian order. */
+ bool is_bigendian() const;
+ /**
+ * Number of significant digits after the decimal point if positive,
+ * or number of non-significant digits before the decimal point if negative
+ * (refers to the value we actually read on the wire).
+ */
+ int digits() const;
+ /** TBD */
+ bool is_digits_decimal() const;
+ /** TBD */
+ shared_ptr<Rational> scale();
+ /** TBD */
+ shared_ptr<Rational> offset();
/** Measured quantity of the samples in this packet. */
const Quantity *mq() const;
/** Unit of the samples in this packet. */
friend class Packet;
};
+/** Number represented by a numerator/denominator integer pair */
+class SR_API Rational :
+ public ParentOwned<Rational, Analog>
+{
+public:
+ /** Numerator, i.e. the dividend. */
+ int64_t numerator() const;
+ /** Denominator, i.e. the divider. */
+ uint64_t denominator() const;
+ /** Actual (lossy) value. */
+ float value() const;
+private:
+ explicit Rational(const struct sr_rational *structure);
+ ~Rational();
+ shared_ptr<Rational> share_owned_by(shared_ptr<Analog> parent);
+
+ const struct sr_rational *_structure;
+
+ friend class Analog;
+ friend struct std::default_delete<Rational>;
+};
+
/** An input format supported by the library */
class SR_API InputFormat :
public ParentOwned<InputFormat, Context>
void send(void *data, size_t length);
/** Signal end of input data. */
void end();
+ void reset();
private:
Input(shared_ptr<Context> context, const struct sr_input *structure);
~Input();