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author | midipix <writeonce@midipix.org> | 2015-12-03 23:20:19 -0500 |
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committer | midipix <writeonce@midipix.org> | 2016-11-10 23:35:30 -0500 |
commit | 413f560bf6f6c38fe141e3cab3c81996db83045b (patch) | |
tree | 8d2b5b85017f4afcb6a8384e2653de998891de96 /src/internal/perk_reader_impl.h | |
parent | 06305207b9a310dcee901d434328aa8e77f8d656 (diff) | |
download | perk-413f560bf6f6c38fe141e3cab3c81996db83045b.tar.bz2 perk-413f560bf6f6c38fe141e3cab3c81996db83045b.tar.xz |
internal headers: rename perk_impl.h to perk_reader_impl.h
Diffstat (limited to 'src/internal/perk_reader_impl.h')
-rw-r--r-- | src/internal/perk_reader_impl.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/src/internal/perk_reader_impl.h b/src/internal/perk_reader_impl.h new file mode 100644 index 0000000..bda7581 --- /dev/null +++ b/src/internal/perk_reader_impl.h @@ -0,0 +1,50 @@ +#ifndef PERK_IMPL_H +#define PERK_IMPL_H + +#include <stdint.h> +#include <endian.h> + +#if (BYTE_ORDER == LITTLE_ENDIAN) + +static inline uint16_t pe_read_short(const unsigned char * raw) +{ + return *(uint16_t *)raw; +} + +static inline uint32_t pe_read_long(const unsigned char * raw) +{ + return *(uint32_t *)raw; +} + +static inline uint64_t pe_read_quad(const unsigned char * raw) +{ + return *(uint64_t *)raw; +} + +#else + +static inline uint16_t pe_read_short(const unsigned char * raw) +{ + uint16_t x = *(uint16_t *)raw; + return x<<8 | x>>8; +} + +static inline uint32_t pe_swap_long(uint32_t x) +{ + return x<<24 | (x<<8) & 0xff0000 | (x>>8) & 0xff00 | x>>24; +} + +static inline uint32_t pe_read_long(const unsigned char * raw) +{ + return pe_swap_long(*(uint32_t *)raw); +} + +static inline uint64_t pe_read_quad(const unsigned char * raw) +{ + uint64_t x = *(uint64_t *)raw; + return ((uint64_t)pe_swap_long(x)<<32) | pe_swap_long(x>>32); +} + +#endif + +#endif |