Fabio
c36510c21e
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44 lines
1.4 KiB
C++
44 lines
1.4 KiB
C++
#pragma once
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#include <cstdint>
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#include <cstddef>
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#include <filesystem>
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#include <utility>
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#include <vector>
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namespace engine::io {
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class BinaryBlob {
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public:
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BinaryBlob() = default;
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~BinaryBlob();
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BinaryBlob(const BinaryBlob &) = delete;
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BinaryBlob & operator=(const BinaryBlob &) = delete;
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BinaryBlob(BinaryBlob && other) noexcept;
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BinaryBlob & operator=(BinaryBlob && other) noexcept;
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[[nodiscard]] const std::byte * data() const noexcept;
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[[nodiscard]] size_t size() const noexcept;
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[[nodiscard]] bool empty() const noexcept;
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void discard_range(size_t offset, size_t size) const noexcept;
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private:
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friend BinaryBlob read_binary_blob(const std::filesystem::path & path, bool require_mapping);
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explicit BinaryBlob(std::vector<std::byte> owned) noexcept;
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BinaryBlob(const std::byte * mapped, size_t size) noexcept;
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void reset() noexcept;
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std::vector<std::byte> owned_;
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const std::byte * mapped_ = nullptr;
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size_t size_ = 0;
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};
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// require_mapping forbids an owned full-file copy when mapping is unavailable.
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BinaryBlob read_binary_blob(const std::filesystem::path & path, bool require_mapping = false);
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std::vector<std::byte> read_binary_file(const std::filesystem::path & path);
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std::vector<float> read_f32_file(const std::filesystem::path & path);
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std::vector<int32_t> read_i32_file(const std::filesystem::path & path);
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} // namespace engine::io
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