iris
74b13b4d70
cf68f4c improvements git-subtree-dir: external/ircolib git-subtree-split: cf68f4c385c6f2def0e359c3c2a7621ce78062a8
44 lines
1.3 KiB
C++
44 lines
1.3 KiB
C++
#pragma once
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#include "types.hpp"
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#include <fstream>
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#include <vector>
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#include <filesystem>
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namespace fs = std::filesystem;
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namespace ircolib {
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static inline std::vector<u8> read_file_binary(const std::string &path) {
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std::ifstream file(path, std::ios::binary);
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return {std::istreambuf_iterator{file}, {}};
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}
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static inline void write_file_binary(const std::vector<u8> &data, const std::string &path) {
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std::ofstream file(path, std::ios::binary);
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std::copy(data.begin(), data.end(), std::ostreambuf_iterator{file});
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}
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static inline void write_file_binary(const u8 *data, const size_t size, const std::string &path) {
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FILE *out = fopen(path.c_str(), "wb");
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fwrite(data, size, 1, out);
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fclose(out);
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}
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template <size_t Size>
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static inline void write_file_binary(const std::array<u8, Size> &data, const std::string &path) {
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std::ofstream file(path, std::ios::binary);
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std::copy(data.begin(), data.end(), std::ostreambuf_iterator{file});
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}
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static inline size_t next_pow2(size_t num) {
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// Taken from "Bit Twiddling Hacks" by Sean Anderson:
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// https://graphics.stanford.edu/~seander/bithacks.html#RoundUpPowerOf2
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--num;
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num |= num >> 1;
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num |= num >> 2;
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num |= num >> 4;
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num |= num >> 8;
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num |= num >> 16;
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return num + 1;
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}
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} // namespace ircolib
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