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include/fs/zip/DeflateSinkWriter.h

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+#pragma once
+
+#include "fs/IStreamSource.h"
+#include "fs/zip/ZipWriter.h"
+
+namespace fs
+{
+
+//////////////////////////////////////////////////////////////////////////
+
+class ISource;
+//////////////////////////////////////////////////////////////////////////
+
+class FS_API DeflateSinkWriter
+{
+public:
+	//compression level: 0 to 9
+	DeflateSinkWriter(IStreamSource& source, uint8_t compressionLevel);
+	DeflateSinkWriter(tl::span<const uint8_t> data, uint8_t compressionLevel);
+
+	DeflateSinkWriter(const DeflateSinkWriter&) = delete;
+	DeflateSinkWriter& operator=(const DeflateSinkWriter&) = delete;
+
+	DeflateSinkWriter(DeflateSinkWriter&&) = default;
+	DeflateSinkWriter& operator=(DeflateSinkWriter&&) = default;
+
+	ZipWriter::DataWriterResult operator()(IStreamSink& sink);
+
+private:
+	IStreamSource* m_source = nullptr;
+	tl::span<const uint8_t> m_data;
+	uint8_t m_compressionLevel = 9;
+};
+
+//////////////////////////////////////////////////////////////////////////
+
+}