Fixes for data sizes greater than zero

[pulseview.git] / logicdatasnapshot.cpp

diff --git a/logicdatasnapshot.cpp b/logicdatasnapshot.cpp
index d01916a763be20e63962928870a15cf142c9032c..10744cf7d6eb40dcd148f79d348d0fde43214d08 100644 (file)
--- a/logicdatasnapshot.cpp
+++ b/logicdatasnapshot.cpp
@@ -55,7 +55,6 @@ void LogicDataSnapshot::append_payload(
 {
        assert(_unit_size == logic.unitsize);
 
-       const uint64_t prev_length = _data_length;
        append_data(logic.data, logic.length);
 
        // Generate the first mip-map from the data
@@ -84,7 +83,7 @@ void LogicDataSnapshot::append_payload_to_mipmap()
 
        // Expand the data buffer to fit the new samples
        prev_length = m0.length;
-       m0.length = _data_length / MipMapScaleFactor;
+       m0.length = _sample_count / MipMapScaleFactor;
 
        // Break off if there are no new samples to compute
        if(m0.length == prev_length)
@@ -160,7 +159,7 @@ void LogicDataSnapshot::append_payload_to_mipmap()
 uint64_t LogicDataSnapshot::get_sample(uint64_t index) const
 {
        assert(_data);
-       assert(index >= 0 && index < _data_length);
+       assert(index >= 0 && index < _sample_count);
 
        return *(uint64_t*)((uint8_t*)_data + index * _unit_size);
 }