X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=blobdiff_plain;f=datasnapshot.cpp;h=6933ea12b9440623884e8b9dc18edada1aac7d35;hp=1a6376882286760b36a9be7acb8827312ef74a3e;hb=8f94be14588c7a7ca0f483b649d7a7b5b5f45ae9;hpb=28a4c9c5eb20296199fc3496bb40b7733dffac75

diff --git a/datasnapshot.cpp b/datasnapshot.cpp
index 1a637688..6933ea12 100644
--- a/datasnapshot.cpp
+++ b/datasnapshot.cpp
@@ -1,5 +1,5 @@
 /*
- * This file is part of the sigrok project.
+ * This file is part of the PulseView project.
  *
  * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
  *
@@ -20,12 +20,32 @@
 
 #include "datasnapshot.h"
 
-DataSnapshot::DataSnapshot() :
-	_sample_count(0)
+#include <assert.h>
+#include <stdlib.h>
+#include <string.h>
+
+DataSnapshot::DataSnapshot(int unit_size) :
+	_data(NULL),
+	_sample_count(0),
+	_unit_size(unit_size)
+{
+	assert(_unit_size > 0);
+}
+
+DataSnapshot::~DataSnapshot()
 {
+	free(_data);
 }
 
 uint64_t DataSnapshot::get_sample_count()
 {
 	return _sample_count;
 }
+
+void DataSnapshot::append_data(void *data, uint64_t samples)
+{
+	_data = realloc(_data, (_sample_count + samples) * _unit_size);
+	memcpy((uint8_t*)_data + _sample_count * _unit_size,
+		data, samples * _unit_size);
+	_sample_count += samples;
+}