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Add utils for working with endianness, more documentation, refactor CMake

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Decided to update the docs, as well as adding few new features and small
refactoring.
This commit is contained in:
Mikhail Romanko
2025-02-28 21:44:01 +03:00
parent 93033ebc99
commit a2d0913c79
19 changed files with 4138 additions and 43 deletions
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1
src/IO.c
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@@ -4,6 +4,7 @@
#define BUFFER_SIZE (sizeof(char *))
struct BH_IO
{
BH_IOCallback cb;

323
src/Util.c Normal file
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@@ -0,0 +1,323 @@
#include <BH/Util.h>
#include <string.h>
union I16
{
uint16_t u;
int16_t s;
};
union I32
{
uint32_t u;
int32_t s;
};
union I64
{
uint64_t u;
int64_t s;
};
uint16_t BH_Read16LEu(const char *buffer)
{
union I16 tmp;
tmp.u = (uint16_t)((unsigned char)buffer[0]);
tmp.u |= (uint16_t)((unsigned char)buffer[1]) << 8;
return tmp.u;
}
int16_t BH_Read16LEs(const char *buffer)
{
union I16 tmp;
tmp.u = (uint16_t)((unsigned char)buffer[0]);
tmp.u |= (uint16_t)((unsigned char)buffer[1]) << 8;
return tmp.s;
}
uint32_t BH_Read32LEu(const char *buffer)
{
union I32 tmp;
tmp.u = (uint32_t)((unsigned char)buffer[0]);
tmp.u |= (uint32_t)((unsigned char)buffer[1]) << 8;
tmp.u |= (uint32_t)((unsigned char)buffer[2]) << 16;
tmp.u |= (uint32_t)((unsigned char)buffer[3]) << 24;
return tmp.u;
}
int32_t BH_Read32LEs(const char *buffer)
{
union I32 tmp;
tmp.u = (uint32_t)((unsigned char)buffer[0]);
tmp.u |= (uint32_t)((unsigned char)buffer[1]) << 8;
tmp.u |= (uint32_t)((unsigned char)buffer[2]) << 16;
tmp.u |= (uint32_t)((unsigned char)buffer[3]) << 24;
return tmp.s;
}
uint64_t BH_Read64LEu(const char *buffer)
{
union I64 tmp;
tmp.u = (uint64_t)((unsigned char)buffer[0]);
tmp.u |= (uint64_t)((unsigned char)buffer[1]) << 8;
tmp.u |= (uint64_t)((unsigned char)buffer[2]) << 16;
tmp.u |= (uint64_t)((unsigned char)buffer[3]) << 24;
tmp.u |= (uint64_t)((unsigned char)buffer[4]) << 32;
tmp.u |= (uint64_t)((unsigned char)buffer[5]) << 40;
tmp.u |= (uint64_t)((unsigned char)buffer[6]) << 48;
tmp.u |= (uint64_t)((unsigned char)buffer[7]) << 56;
return tmp.u;
}
int64_t BH_Read64LEs(const char *buffer)
{
union I64 tmp;
tmp.u = (uint64_t)((unsigned char)buffer[0]);
tmp.u |= (uint64_t)((unsigned char)buffer[1]) << 8;
tmp.u |= (uint64_t)((unsigned char)buffer[2]) << 16;
tmp.u |= (uint64_t)((unsigned char)buffer[3]) << 24;
tmp.u |= (uint64_t)((unsigned char)buffer[4]) << 32;
tmp.u |= (uint64_t)((unsigned char)buffer[5]) << 40;
tmp.u |= (uint64_t)((unsigned char)buffer[6]) << 48;
tmp.u |= (uint64_t)((unsigned char)buffer[7]) << 56;
return tmp.s;
}
uint16_t BH_Read16BEu(const char *buffer)
{
union I16 tmp;
tmp.u = (uint16_t)((unsigned char)buffer[0]) << 8;
tmp.u |= (uint16_t)((unsigned char)buffer[1]);
return tmp.u;
}
int16_t BH_Read16BEs(const char *buffer)
{
union I16 tmp;
tmp.u = (uint16_t)((unsigned char)buffer[0]) << 8;
tmp.u |= (uint16_t)((unsigned char)buffer[1]);
return tmp.s;
}
uint32_t BH_Read32BEu(const char *buffer)
{
union I32 tmp;
tmp.u = (uint32_t)((unsigned char)buffer[0]) << 24;
tmp.u |= (uint32_t)((unsigned char)buffer[1]) << 16;
tmp.u |= (uint32_t)((unsigned char)buffer[2]) << 8;
tmp.u |= (uint32_t)((unsigned char)buffer[3]);
return tmp.u;
}
int32_t BH_Read32BEs(const char *buffer)
{
union I32 tmp;
tmp.u = (uint32_t)((unsigned char)buffer[0]) << 24;
tmp.u |= (uint32_t)((unsigned char)buffer[1]) << 16;
tmp.u |= (uint32_t)((unsigned char)buffer[2]) << 8;
tmp.u |= (uint32_t)((unsigned char)buffer[3]);
return tmp.s;
}
uint64_t BH_Read64BEu(const char *buffer)
{
union I64 tmp;
tmp.u = (uint64_t)((unsigned char)buffer[0]) << 56;
tmp.u |= (uint64_t)((unsigned char)buffer[1]) << 48;
tmp.u |= (uint64_t)((unsigned char)buffer[2]) << 40;
tmp.u |= (uint64_t)((unsigned char)buffer[3]) << 32;
tmp.u |= (uint64_t)((unsigned char)buffer[4]) << 24;
tmp.u |= (uint64_t)((unsigned char)buffer[5]) << 16;
tmp.u |= (uint64_t)((unsigned char)buffer[6]) << 8;
tmp.u |= (uint64_t)((unsigned char)buffer[7]);
return tmp.u;
}
int64_t BH_Read64BEs(const char *buffer)
{
union I64 tmp;
tmp.u = (uint64_t)((unsigned char)buffer[0]) << 56;
tmp.u |= (uint64_t)((unsigned char)buffer[1]) << 48;
tmp.u |= (uint64_t)((unsigned char)buffer[2]) << 40;
tmp.u |= (uint64_t)((unsigned char)buffer[3]) << 32;
tmp.u |= (uint64_t)((unsigned char)buffer[4]) << 24;
tmp.u |= (uint64_t)((unsigned char)buffer[5]) << 16;
tmp.u |= (uint64_t)((unsigned char)buffer[6]) << 8;
tmp.u |= (uint64_t)((unsigned char)buffer[7]);
return tmp.s;
}
void BH_Write16LEu(char *buffer,
uint16_t value)
{
union I16 tmp;
tmp.u = value;
((unsigned char *)buffer)[0] = (tmp.u) & 0xFF;
((unsigned char *)buffer)[1] = (tmp.u >> 8) & 0xFF;
}
void BH_Write16LEs(char *buffer,
int16_t value)
{
union I16 tmp;
tmp.s = value;
((unsigned char *)buffer)[0] = (tmp.u) & 0xFF;
((unsigned char *)buffer)[1] = (tmp.u >> 8) & 0xFF;
}
void BH_Write32LEu(char *buffer,
uint32_t value)
{
union I32 tmp;
tmp.u = value;
((unsigned char *)buffer)[0] = (tmp.u) & 0xFF;
((unsigned char *)buffer)[1] = (tmp.u >> 8) & 0xFF;
((unsigned char *)buffer)[2] = (tmp.u >> 16) & 0xFF;
((unsigned char *)buffer)[3] = (tmp.u >> 24) & 0xFF;
}
void BH_Write32LEs(char *buffer,
int32_t value)
{
union I32 tmp;
tmp.s = value;
((unsigned char *)buffer)[0] = (tmp.u) & 0xFF;
((unsigned char *)buffer)[1] = (tmp.u >> 8) & 0xFF;
((unsigned char *)buffer)[2] = (tmp.u >> 16) & 0xFF;
((unsigned char *)buffer)[3] = (tmp.u >> 24) & 0xFF;
}
void BH_Write64LEu(char *buffer,
uint64_t value)
{
union I64 tmp;
tmp.u = value;
((unsigned char *)buffer)[0] = (tmp.u) & 0xFF;
((unsigned char *)buffer)[1] = (tmp.u >> 8) & 0xFF;
((unsigned char *)buffer)[2] = (tmp.u >> 16) & 0xFF;
((unsigned char *)buffer)[3] = (tmp.u >> 24) & 0xFF;
((unsigned char *)buffer)[4] = (tmp.u >> 32) & 0xFF;
((unsigned char *)buffer)[5] = (tmp.u >> 40) & 0xFF;
((unsigned char *)buffer)[6] = (tmp.u >> 48) & 0xFF;
((unsigned char *)buffer)[7] = (tmp.u >> 56) & 0xFF;
}
void BH_Write64LEs(char *buffer,
int64_t value)
{
union I64 tmp;
tmp.s = value;
((unsigned char *)buffer)[0] = (tmp.u) & 0xFF;
((unsigned char *)buffer)[1] = (tmp.u >> 8) & 0xFF;
((unsigned char *)buffer)[2] = (tmp.u >> 16) & 0xFF;
((unsigned char *)buffer)[3] = (tmp.u >> 24) & 0xFF;
((unsigned char *)buffer)[4] = (tmp.u >> 32) & 0xFF;
((unsigned char *)buffer)[5] = (tmp.u >> 40) & 0xFF;
((unsigned char *)buffer)[6] = (tmp.u >> 48) & 0xFF;
((unsigned char *)buffer)[7] = (tmp.u >> 56) & 0xFF;
}
void BH_Write16BEu(char *buffer,
uint16_t value)
{
union I16 tmp;
tmp.u = value;
((unsigned char *)buffer)[0] = (tmp.u >> 8) & 0xFF;
((unsigned char *)buffer)[1] = (tmp.u) & 0xFF;
}
void BH_Write16BEs(char *buffer,
int16_t value)
{
union I16 tmp;
tmp.s = value;
((unsigned char *)buffer)[0] = (tmp.u >> 8) & 0xFF;
((unsigned char *)buffer)[1] = (tmp.u) & 0xFF;
}
void BH_Write32BEu(char *buffer,
uint32_t value)
{
union I32 tmp;
tmp.u = value;
((unsigned char *)buffer)[0] = (tmp.u >> 24) & 0xFF;
((unsigned char *)buffer)[1] = (tmp.u >> 16) & 0xFF;
((unsigned char *)buffer)[2] = (tmp.u >> 8) & 0xFF;
((unsigned char *)buffer)[3] = (tmp.u) & 0xFF;
}
void BH_Write32BEs(char *buffer,
int32_t value)
{
union I32 tmp;
tmp.s = value;
((unsigned char *)buffer)[0] = (tmp.u >> 24) & 0xFF;
((unsigned char *)buffer)[1] = (tmp.u >> 16) & 0xFF;
((unsigned char *)buffer)[2] = (tmp.u >> 8) & 0xFF;
((unsigned char *)buffer)[3] = (tmp.u) & 0xFF;
}
void BH_Write64BEu(char *buffer,
uint64_t value)
{
union I64 tmp;
tmp.u = value;
((unsigned char *)buffer)[0] = (tmp.u >> 56) & 0xFF;
((unsigned char *)buffer)[1] = (tmp.u >> 48) & 0xFF;
((unsigned char *)buffer)[2] = (tmp.u >> 40) & 0xFF;
((unsigned char *)buffer)[3] = (tmp.u >> 32) & 0xFF;
((unsigned char *)buffer)[4] = (tmp.u >> 24) & 0xFF;
((unsigned char *)buffer)[5] = (tmp.u >> 16) & 0xFF;
((unsigned char *)buffer)[6] = (tmp.u >> 8) & 0xFF;
((unsigned char *)buffer)[7] = (tmp.u) & 0xFF;
}
void BH_Write64BEs(char *buffer,
int64_t value)
{
union I64 tmp;
tmp.s = value;
((unsigned char *)buffer)[0] = (tmp.u >> 56) & 0xFF;
((unsigned char *)buffer)[1] = (tmp.u >> 48) & 0xFF;
((unsigned char *)buffer)[2] = (tmp.u >> 40) & 0xFF;
((unsigned char *)buffer)[3] = (tmp.u >> 32) & 0xFF;
((unsigned char *)buffer)[4] = (tmp.u >> 24) & 0xFF;
((unsigned char *)buffer)[5] = (tmp.u >> 16) & 0xFF;
((unsigned char *)buffer)[6] = (tmp.u >> 8) & 0xFF;
((unsigned char *)buffer)[7] = (tmp.u) & 0xFF;
}