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54 lines
1.5 KiB
54 lines
1.5 KiB
#pragma once |
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#include <cstdint> |
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#include <cstring> |
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#include <SDL_endian.h> |
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namespace devilution { |
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template <typename T> |
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constexpr uint16_t LoadLE16(const T *b) |
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{ |
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static_assert(sizeof(T) == 1, "invalid argument"); |
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// NOLINTNEXTLINE(readability-magic-numbers) |
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return (static_cast<uint8_t>(b[1]) << 8) | static_cast<uint8_t>(b[0]); |
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} |
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template <typename T> |
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constexpr uint16_t LoadBE16(const T *b) |
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{ |
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static_assert(sizeof(T) == 1, "invalid argument"); |
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// NOLINTNEXTLINE(readability-magic-numbers) |
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return (static_cast<uint8_t>(b[0]) << 8) | static_cast<uint8_t>(b[1]); |
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} |
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template <typename T> |
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constexpr uint32_t LoadLE32(const T *b) |
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{ |
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static_assert(sizeof(T) == 1, "invalid argument"); |
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// NOLINTNEXTLINE(readability-magic-numbers) |
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return (static_cast<uint8_t>(b[3]) << 24) | (static_cast<uint8_t>(b[2]) << 16) | (static_cast<uint8_t>(b[1]) << 8) | static_cast<uint8_t>(b[0]); |
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} |
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template <typename T> |
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constexpr uint32_t LoadBE32(const T *b) |
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{ |
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static_assert(sizeof(T) == 1, "invalid argument"); |
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// NOLINTNEXTLINE(readability-magic-numbers) |
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return (static_cast<uint8_t>(b[0]) << 24) | (static_cast<uint8_t>(b[1]) << 16) | (static_cast<uint8_t>(b[2]) << 8) | static_cast<uint8_t>(b[3]); |
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} |
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inline void WriteLE16(void *out, uint16_t val) |
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{ |
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const uint16_t littleEndian = SDL_SwapLE16(val); |
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memcpy(out, &littleEndian, 2); |
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} |
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inline void WriteLE32(void *out, uint32_t val) |
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{ |
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const uint32_t littleEndian = SDL_SwapLE32(val); |
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memcpy(out, &littleEndian, 4); |
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} |
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} // namespace devilution
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