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Cleanup.

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This commit is contained in:
Branimir Karadžić
2017-02-07 18:35:15 -08:00
parent 7a89d512da
commit 3acd8a55d3
3 changed files with 71 additions and 62 deletions
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55
src/crt.cpp
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@@ -13,7 +13,18 @@
namespace bx
{
void* memCopyRef(void* _dst, const void* _src, size_t _numBytes)
void xchg(void* _a, void* _b, size_t _numBytes)
{
uint8_t* lhs = (uint8_t*)_a;
uint8_t* rhs = (uint8_t*)_b;
const uint8_t* end = rhs + _numBytes;
while (rhs != end)
{
xchg(*lhs++, *rhs++);
}
}
void memCopyRef(void* _dst, const void* _src, size_t _numBytes)
{
uint8_t* dst = (uint8_t*)_dst;
const uint8_t* end = dst + _numBytes;
@@ -22,16 +33,14 @@ namespace bx
{
*dst++ = *src++;
}
return _dst;
}
void* memCopy(void* _dst, const void* _src, size_t _numBytes)
void memCopy(void* _dst, const void* _src, size_t _numBytes)
{
#if BX_CRT_NONE
return memCopyRef(_dst, _src, _numBytes);
memCopyRef(_dst, _src, _numBytes);
#else
return ::memcpy(_dst, _src, _numBytes);
::memcpy(_dst, _src, _numBytes);
#endif // BX_CRT_NONE
}
@@ -60,7 +69,7 @@ namespace bx
memCopy(_dst, _src, _size, _num, _size, _dstPitch);
}
void* memMoveRef(void* _dst, const void* _src, size_t _numBytes)
void memMoveRef(void* _dst, const void* _src, size_t _numBytes)
{
uint8_t* dst = (uint8_t*)_dst;
const uint8_t* src = (const uint8_t*)_src;
@@ -68,33 +77,32 @@ namespace bx
if (_numBytes == 0
|| dst == src)
{
return dst;
return;
}
// if (src+_numBytes <= dst || end <= src)
if (dst < src)
{
return memCopy(_dst, _src, _numBytes);
memCopy(_dst, _src, _numBytes);
return;
}
for (intptr_t ii = _numBytes-1; ii >= 0; --ii)
{
dst[ii] = src[ii];
}
return _dst;
}
void* memMove(void* _dst, const void* _src, size_t _numBytes)
void memMove(void* _dst, const void* _src, size_t _numBytes)
{
#if BX_CRT_NONE
return memMoveRef(_dst, _src, _numBytes);
memMoveRef(_dst, _src, _numBytes);
#else
return ::memmove(_dst, _src, _numBytes);
::memmove(_dst, _src, _numBytes);
#endif // BX_CRT_NONE
}
void* memSetRef(void* _dst, uint8_t _ch, size_t _numBytes)
void memSetRef(void* _dst, uint8_t _ch, size_t _numBytes)
{
uint8_t* dst = (uint8_t*)_dst;
const uint8_t* end = dst + _numBytes;
@@ -102,16 +110,14 @@ namespace bx
{
*dst++ = char(_ch);
}
return _dst;
}
void* memSet(void* _dst, uint8_t _ch, size_t _numBytes)
void memSet(void* _dst, uint8_t _ch, size_t _numBytes)
{
#if BX_CRT_NONE
return memSetRef(_dst, _ch, _numBytes);
memSetRef(_dst, _ch, _numBytes);
#else
return ::memset(_dst, _ch, _numBytes);
::memset(_dst, _ch, _numBytes);
#endif // BX_CRT_NONE
}
@@ -396,16 +402,19 @@ namespace bx
#if BX_CRT_NONE
extern "C" void* memcpy(void* _dst, const void* _src, size_t _numBytes)
{
return bx::memCopy(_dst, _src, _numBytes);
bx::memCopy(_dst, _src, _numBytes);
return _dst;
}
extern "C" void* memmove(void* _dst, const void* _src, size_t _numBytes)
{
return bx::memMove(_dst, _src, _numBytes);
bx::memMove(_dst, _src, _numBytes);
return _dst;
}
extern "C" void* memset(void* _dst, int _ch, size_t _numBytes)
{
return bx::memSet(_dst, uint8_t(_ch), _numBytes);
bx::memSet(_dst, uint8_t(_ch), _numBytes);
return _dst;
}
#endif // BX_CRT_NONE