1 files changed, 51 insertions, 0 deletions
diff --git a/firmware/source/samplebuffer.hpp b/firmware/source/samplebuffer.hpp
new file mode 100644
index 0000000..d13023a
--- /dev/null
+++ b/firmware/source/samplebuffer.hpp
@@ -0,0 +1,51 @@
+/**
+ * @file samplebuffer.hpp
+ * @brief Manages ADC/DAC buffer data.
+ *
+ * Copyright (C) 2021 Clyne Sullivan
+ *
+ * Distributed under the GNU GPL v3 or later. You should have received a copy of
+ * the GNU General Public License along with this program.
+ * If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef SAMPLEBUFFER_HPP_
+#define SAMPLEBUFFER_HPP_
+
+#include <array>
+#include <cstdint>
+
+using Sample = uint16_t;
+
+constexpr unsigned int MAX_SAMPLE_BUFFER_BYTESIZE = sizeof(Sample) * 8192;
+constexpr unsigned int MAX_SAMPLE_BUFFER_SIZE = MAX_SAMPLE_BUFFER_BYTESIZE / sizeof(Sample);
+
+class SampleBuffer
+{
+public:
+    SampleBuffer(Sample *buffer);
+
+    void clear();
+
+    void modify(Sample *data, unsigned int srcsize);
+    void midmodify(Sample *data, unsigned int srcsize);
+    void setModified();
+    void setMidmodified();
+    Sample *modified();
+
+    Sample *data();
+    Sample *middata();
+    uint8_t *bytedata();
+
+    void setSize(unsigned int size);
+    unsigned int size() const;
+    unsigned int bytesize() const;
+
+private:
+    Sample *m_buffer = nullptr;
+    unsigned int m_size = MAX_SAMPLE_BUFFER_SIZE;
+    Sample *m_modified = nullptr;
+};
+
+#endif // SAMPLEBUFFER_HPP_
+