mirror of
https://github.com/mmozeiko/pkg2zip.git
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119 lines
2.8 KiB
C
119 lines
2.8 KiB
C
#pragma once
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#include <stdint.h>
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#include <stddef.h>
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#if defined(_MSC_VER)
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# define NORETURN __declspec(noreturn)
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# define PKG_ALIGN(x) __declspec(align(x))
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#else
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# define NORETURN __attribute__((noreturn))
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# define PKG_ALIGN(x) __attribute__((aligned(x)))
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#endif
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static inline uint32_t min32(uint32_t a, uint32_t b)
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{
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return a < b ? a : b;
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}
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static inline uint64_t min64(uint64_t a, uint64_t b)
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{
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return a < b ? a : b;
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}
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static inline uint16_t get16le(const uint8_t* bytes)
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{
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return (bytes[0]) | (bytes[1] << 8);
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}
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static inline uint32_t get32le(const uint8_t* bytes)
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{
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return (bytes[0]) | (bytes[1] << 8) | (bytes[2] << 16) | (bytes[3] << 24);
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}
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static inline uint64_t get64le(const uint8_t* bytes)
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{
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return (uint64_t)bytes[0]
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| ((uint64_t)bytes[1] << 8)
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| ((uint64_t)bytes[2] << 16)
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| ((uint64_t)bytes[3] << 24)
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| ((uint64_t)bytes[4] << 32)
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| ((uint64_t)bytes[5] << 40)
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| ((uint64_t)bytes[6] << 48)
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| ((uint64_t)bytes[7] << 56);
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}
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static inline uint16_t get16be(const uint8_t* bytes)
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{
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return (bytes[1]) | (bytes[0] << 8);
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}
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static inline uint32_t get32be(const uint8_t* bytes)
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{
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return (bytes[3]) | (bytes[2] << 8) | (bytes[1] << 16) | (bytes[0] << 24);
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}
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static inline uint64_t get64be(const uint8_t* bytes)
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{
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return (uint64_t)bytes[7]
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| ((uint64_t)bytes[6] << 8)
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| ((uint64_t)bytes[5] << 16)
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| ((uint64_t)bytes[4] << 24)
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| ((uint64_t)bytes[3] << 32)
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| ((uint64_t)bytes[2] << 40)
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| ((uint64_t)bytes[1] << 48)
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| ((uint64_t)bytes[0] << 56);
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}
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static inline void set16le(uint8_t* bytes, uint16_t x)
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{
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bytes[0] = (uint8_t)x;
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bytes[1] = (uint8_t)(x >> 8);
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}
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static inline void set32le(uint8_t* bytes, uint32_t x)
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{
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bytes[0] = (uint8_t)x;
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bytes[1] = (uint8_t)(x >> 8);
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bytes[2] = (uint8_t)(x >> 16);
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bytes[3] = (uint8_t)(x >> 24);
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}
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static inline void set64le(uint8_t* bytes, uint64_t x)
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{
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bytes[0] = (uint8_t)x;
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bytes[1] = (uint8_t)(x >> 8);
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bytes[2] = (uint8_t)(x >> 16);
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bytes[3] = (uint8_t)(x >> 24);
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bytes[4] = (uint8_t)(x >> 32);
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bytes[5] = (uint8_t)(x >> 40);
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bytes[6] = (uint8_t)(x >> 48);
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bytes[7] = (uint8_t)(x >> 56);
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}
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static inline void set16be(uint8_t* bytes, uint16_t x)
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{
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bytes[0] = (uint8_t)(x >> 8);
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bytes[1] = (uint8_t)x;
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}
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static inline void set32be(uint8_t* bytes, uint32_t x)
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{
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bytes[0] = (uint8_t)(x >> 24);
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bytes[1] = (uint8_t)(x >> 16);
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bytes[2] = (uint8_t)(x >> 8);
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bytes[3] = (uint8_t)x;
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}
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static inline void set64be(uint8_t* bytes, uint64_t x)
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{
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bytes[0] = (uint8_t)(x >> 56);
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bytes[1] = (uint8_t)(x >> 48);
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bytes[2] = (uint8_t)(x >> 40);
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bytes[3] = (uint8_t)(x >> 32);
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bytes[4] = (uint8_t)(x >> 24);
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bytes[5] = (uint8_t)(x >> 16);
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bytes[6] = (uint8_t)(x >> 8);
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bytes[7] = (uint8_t)x;
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}
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