First

2024-07-02 18:12:23 +02:00
commit b344afa9fe
89 changed files with 10568 additions and 0 deletions
@@ -0,0 +1,42 @@
+#pragma once
+
+#include "tl/ptr.h"
+#include "IMapSource.h"
+#include "MemoryViewSource.h"
+#include "fs/Api.h"
+
+namespace fs
+{
+
+class FS_API MapSourceView final : public IMapSource
+{
+public:
+
+	MapSourceView(tl::lent_ref<IMapSource> srcSource, uint64_t offset, size_t size);
+
+	tl::optional<Error> getLastError() const override;
+
+	size_t read(tl::span<uint8_t> data) override;
+
+	void seekBeg(uint64_t offset) override;
+	void seekRel(int64_t offset) override;
+
+	uint64_t tell() const override;
+	uint64_t getSize() const override;
+
+	tl::span<const uint8_t> map(size_t size) override;
+
+	bool isEOS() const override;
+
+	size_t getPreferredBufferSize() const override;
+
+private:
+
+	tl::span<const uint8_t> m_memView;
+	MemoryViewSource m_memViewSource;
+
+	tl::span<const uint8_t> constructMemView(IMapSource& srcSource, uint64_t offset, size_t size) const;
+};
+
+}
+