First

2024-07-02 18:12:23 +02:00
commit b344afa9fe
89 changed files with 10568 additions and 0 deletions
@@ -0,0 +1,39 @@
+#pragma once
+
+#include "ISource.h"
+#include <tl/ptr.h>
+#include "fs/Api.h"
+
+namespace fs
+{
+
+class FS_API SourceView final : public ISource
+{
+public:
+	SourceView(tl::unique_ref<ISource>&& i_srcSource, uint64_t i_offset, uint64_t i_size);
+	~SourceView() override = default;
+
+	tl::optional<Error> getLastError() const override;
+
+	size_t read(tl::span<uint8_t> data) override;
+
+	void seekBeg(uint64_t i_offset) override;
+	void seekRel(int64_t i_offset) override;
+
+	uint64_t tell() const override;
+	uint64_t getSize() const override;
+	
+	bool isEOS() const override;
+
+	size_t getPreferredBufferSize() const override;
+
+private:
+	tl::unique_ref<ISource> m_srcSource;
+	mutable tl::optional<Error> m_optLastError;
+	uint64_t	m_viewOffset = 0;
+	uint64_t	m_viewSize = 0;
+	uint64_t	m_offset = 0;
+};
+
+}
+