diff data/model/EditableDenseThreeDimensionalModel.h @ 1777:d484490cdf69

Split EditableDenseThreeDimensionalModel into explicitly compressed and uncompressed variants. Simplifies the uncompressed version, and we may want to consider whether we need the compressed one at all.

--- a/data/model/EditableDenseThreeDimensionalModel.h	Mon Sep 09 10:25:16 2019 +0100
+++ b/data/model/EditableDenseThreeDimensionalModel.h	Tue Sep 10 16:34:47 2019 +0100
@@ -18,7 +18,7 @@
 
 #include "DenseThreeDimensionalModel.h"
 
-#include <QReadWriteLock>
+#include <QMutex>
 
 #include <vector>
 
@@ -27,25 +27,9 @@
     Q_OBJECT
 
 public:
-
-    // EditableDenseThreeDimensionalModel supports a basic compression
-    // method that reduces the size of multirate data (e.g. wavelet
-    // transform outputs) that are stored as plain 3d grids by about
-    // 60% or thereabouts.  However, it can only be used for models
-    // whose columns are set in order from 0 and never subsequently
-    // changed.  If the model is going to be actually edited, it must
-    // have NoCompression.
-
-    enum CompressionType
-    {
-        NoCompression,
-        BasicMultirateCompression
-    };
-
     EditableDenseThreeDimensionalModel(sv_samplerate_t sampleRate,
                                        int resolution,
                                        int height,
-                                       CompressionType compression,
                                        bool notifyOnAdd = true);
 
     bool isOK() const override;
@@ -201,19 +185,6 @@
     typedef std::vector<Column> ValueMatrix;
     ValueMatrix m_data;
 
-    // m_trunc is used for simple compression.  If at least the top N
-    // elements of column x (for N = some proportion of the column
-    // height) are equal to those of an earlier column x', then
-    // m_trunc[x] will contain x-x' and column x will be truncated so
-    // as to remove the duplicate elements.  If the equal elements are
-    // at the bottom, then m_trunc[x] will contain x'-x (a negative
-    // value).  If m_trunc[x] is 0 then the whole of column x is
-    // stored.
-    std::vector<signed char> m_trunc;
-    void truncateAndStore(int index, const Column & values);
-    Column expandAndRetrieve(int index) const;
-    Column rightHeight(const Column &c) const;
-
     std::vector<QString> m_binNames;
     std::vector<float> m_binValues;
     QString m_binValueUnit;
@@ -222,7 +193,6 @@
     sv_samplerate_t m_sampleRate;
     int m_resolution;
     int m_yBinCount;
-    CompressionType m_compression;
     float m_minimum;
     float m_maximum;
     bool m_haveExtents;
@@ -231,7 +201,7 @@
     sv_frame_t m_sinceLastNotifyMax;
     int m_completion;
 
-    mutable QReadWriteLock m_lock;
+    mutable QMutex m_mutex;
 };
 
 #endif