X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=blobdiff_plain;f=datasnapshot.cpp;h=80d9ba4318f53f83e8d89604d658870d677e4b69;hp=1a6376882286760b36a9be7acb8827312ef74a3e;hb=f556bc6a4d1798e59f6d0276cdb0d55b5ffab476;hpb=28a4c9c5eb20296199fc3496bb40b7733dffac75

diff --git a/datasnapshot.cpp b/datasnapshot.cpp
index 1a637688..80d9ba43 100644
--- a/datasnapshot.cpp
+++ b/datasnapshot.cpp
@@ -20,12 +20,31 @@
 
 #include "datasnapshot.h"
 
-DataSnapshot::DataSnapshot() :
-	_sample_count(0)
+#include <assert.h>
+#include <stdlib.h>
+#include <string.h>
+
+DataSnapshot::DataSnapshot(int unit_size) :
+	_data(NULL),
+	_data_length(0),
+	_unit_size(unit_size)
+{
+	assert(_unit_size > 0);
+}
+
+DataSnapshot::~DataSnapshot()
 {
+	free(_data);
 }
 
 uint64_t DataSnapshot::get_sample_count()
 {
-	return _sample_count;
+	return _data_length / _unit_size;
+}
+
+void DataSnapshot::append_data(void *data, uint64_t length)
+{
+	_data = realloc(_data, _data_length + length);
+	memcpy((uint8_t*)_data + _data_length, data, length);
+	_data_length += length;
 }