X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=blobdiff_plain;f=pv%2Fdata%2Flogicsegment.hpp;h=67959b31ec17e402bca93466249355fd60cc5ea4;hp=3e092c531dfd46c6d98c98427af2684c7bdcec2c;hb=0df28cd5a727c5e4ff2c46e3258b76936bc0c33d;hpb=f3d66e52ed6b454ea7a0662d5e6367e230116a2b

diff --git a/pv/data/logicsegment.hpp b/pv/data/logicsegment.hpp
index 3e092c53..67959b31 100644
--- a/pv/data/logicsegment.hpp
+++ b/pv/data/logicsegment.hpp
@@ -14,18 +14,23 @@
  * 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/>.
  */
 
-#ifndef PULSEVIEW_PV_DATA_LOGICSNAPSHOT_H
-#define PULSEVIEW_PV_DATA_LOGICSNAPSHOT_H
+#ifndef PULSEVIEW_PV_DATA_LOGICSEGMENT_HPP
+#define PULSEVIEW_PV_DATA_LOGICSEGMENT_HPP
 
 #include "segment.hpp"
 
 #include <utility>
 #include <vector>
 
+#include <QObject>
+
+using std::pair;
+using std::shared_ptr;
+using std::vector;
+
 namespace sigrok {
 	class Logic;
 }
@@ -41,48 +46,40 @@ struct LongPulses;
 namespace pv {
 namespace data {
 
+class Logic;
+
 class LogicSegment : public Segment
 {
-private:
-	struct MipMapLevel
-	{
-		uint64_t length;
-		uint64_t data_length;
-		void *data;
-	};
+	Q_OBJECT
+
+public:
+	typedef pair<int64_t, bool> EdgePair;
 
-private:
 	static const unsigned int ScaleStepCount = 10;
 	static const int MipMapScalePower;
 	static const int MipMapScaleFactor;
 	static const float LogMipMapScaleFactor;
 	static const uint64_t MipMapDataUnit;
 
-public:
-	typedef std::pair<int64_t, bool> EdgePair;
+private:
+	struct MipMapLevel
+	{
+		uint64_t length;
+		uint64_t data_length;
+		void *data;
+	};
 
 public:
-	LogicSegment(std::shared_ptr<sigrok::Logic> logic,
-		uint64_t samplerate, uint64_t expected_num_samples = 0);
+	LogicSegment(pv::data::Logic& owner, uint32_t segment_id,
+		unsigned int unit_size, uint64_t samplerate);
 
 	virtual ~LogicSegment();
 
-	void append_payload(std::shared_ptr<sigrok::Logic> logic);
+	void append_payload(shared_ptr<sigrok::Logic> logic);
+	void append_payload(void *data, uint64_t data_size);
 
-	void get_samples(uint8_t *const data,
-		int64_t start_sample, int64_t end_sample) const;
+	void get_samples(int64_t start_sample, int64_t end_sample, uint8_t* dest) const;
 
-private:
-	uint64_t unpack_sample(const uint8_t *ptr) const;
-	void pack_sample(uint8_t *ptr, uint64_t value);
-	
-	void reallocate_mipmap_level(MipMapLevel &m);
-
-	void append_payload_to_mipmap();
-
-	uint64_t get_sample(uint64_t index) const;
-
-public:
 	/**
 	 * Parses a logic data segment to generate a list of transitions
 	 * in a time interval to a given level of detail.
@@ -92,10 +89,27 @@ public:
 	 * @param[in] min_length The minimum number of samples that
 	 * can be resolved at this level of detail.
 	 * @param[in] sig_index The index of the signal.
-	 **/
-	void get_subsampled_edges(std::vector<EdgePair> &edges,
+	 */
+	void get_subsampled_edges(vector<EdgePair> &edges,
 		uint64_t start, uint64_t end,
-		float min_length, int sig_index);
+		float min_length, int sig_index, bool first_change_only = false);
+
+	void get_surrounding_edges(vector<EdgePair> &dest,
+		uint64_t origin_sample, float min_length, int sig_index);
+
+private:
+	uint64_t unpack_sample(const uint8_t *ptr) const;
+	void pack_sample(uint8_t *ptr, uint64_t value);
+
+	void reallocate_mipmap_level(MipMapLevel &m);
+
+	void append_payload_to_mipmap();
+
+	uint64_t get_unpacked_sample(uint64_t index) const;
+
+	template <class T> void downsampleTmain(const T*&in, T &acc, T &prev);
+	template <class T> void downsampleT(const uint8_t *in, uint8_t *&out, uint64_t len);
+	void downsampleGeneric(const uint8_t *in, uint8_t *&out, uint64_t len);
 
 private:
 	uint64_t get_subsample(int level, uint64_t offset) const;
@@ -103,8 +117,12 @@ private:
 	static uint64_t pow2_ceil(uint64_t x, unsigned int power);
 
 private:
+	Logic& owner_;
+
 	struct MipMapLevel mip_map_[ScaleStepCount];
 	uint64_t last_append_sample_;
+	uint64_t last_append_accumulator_;
+	uint64_t last_append_extra_;
 
 	friend struct LogicSegmentTest::Pow2;
 	friend struct LogicSegmentTest::Basic;
@@ -116,4 +134,4 @@ private:
 } // namespace data
 } // namespace pv
 
-#endif // PULSEVIEW_PV_DATA_LOGICSNAPSHOT_H
+#endif // PULSEVIEW_PV_DATA_LOGICSEGMENT_HPP