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/*
* Copyright (C) 2020 Linux Studio Plugins Project <https://lsp-plug.in/>
* (C) 2020 Vladimir Sadovnikov <sadko4u@gmail.com>
*
* This file is part of lsp-common-lib
* Created on: 1 апр. 2020 г.
*
* lsp-common-lib is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* lsp-common-lib is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with lsp-common-lib. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef LSP_PLUG_IN_COMMON_ARCH_GENERIC_ENDIAN_H_
#define LSP_PLUG_IN_COMMON_ARCH_GENERIC_ENDIAN_H_
#ifndef LSP_PLUG_IN_COMMON_ENDIAN_IMPL
#error "This file should not be included directly"
#endif /* LSP_PLUG_IN_COMMON_ENDIAN_IMPL */
namespace lsp
{
inline uint16_t __lsp_forced_inline byte_swap(uint16_t v)
{
return (v >> 8) | (v << 8);
}
inline uint32_t __lsp_forced_inline byte_swap(uint32_t v)
{
v = ((v & 0xff00ff00) >> 8) | ((v & 0x00ff00ff) << 8);
return (v >> 16) | (v << 16);
}
inline uint64_t __lsp_forced_inline byte_swap(uint64_t v)
{
v = ((v & 0xff00ff00ff00ff00ULL) >> 8) | ((v & 0x00ff00ff00ff00ffULL) << 8);
v = ((v & 0xffff0000ffff0000ULL) >> 16) | ((v & 0x0000ffff0000ffffULL) << 16);
return (v >> 32) | (v << 32);
}
inline float __lsp_forced_inline byte_swap(float v)
{
union {
float fValue;
uint32_t uValue;
} tmp;
tmp.fValue = v;
tmp.uValue = byte_swap(tmp.uValue);
return tmp.fValue;
}
inline double __lsp_forced_inline byte_swap(double v)
{
union {
double fValue;
uint64_t uValue;
} tmp;
tmp.fValue = v;
tmp.uValue = byte_swap(tmp.uValue);
return tmp.fValue;
}
inline void __lsp_forced_inline byte_swap(uint16_t *v, size_t n)
{
while (n--)
{
*v = byte_swap(*v);
v ++;
}
}
inline void __lsp_forced_inline byte_swap(int16_t *v, size_t n)
{
while (n--)
{
*v = byte_swap(uint16_t(*v));
v ++;
}
}
inline void __lsp_forced_inline byte_swap(uint32_t *v, size_t n)
{
while (n--)
{
*v = byte_swap(*v);
v ++;
}
}
inline void __lsp_forced_inline byte_swap(int32_t *v, size_t n)
{
while (n--)
{
*v = byte_swap(uint32_t(*v));
v ++;
}
}
inline void __lsp_forced_inline byte_swap(uint64_t *v, size_t n)
{
while (n--)
{
*v = byte_swap(*v);
v ++;
}
}
inline void __lsp_forced_inline byte_swap(int64_t *v, size_t n)
{
while (n--)
{
*v = byte_swap(uint64_t(*v));
v ++;
}
}
inline void __lsp_forced_inline byte_swap(float *v, size_t n)
{
union {
float *fValue;
uint32_t *uValue;
} tmp;
tmp.fValue = v;
uint32_t *p = tmp.uValue;
while (n--)
{
*p = byte_swap(*p);
p ++;
}
}
inline void __lsp_forced_inline byte_swap(double *v, size_t n)
{
union {
double *fValue;
uint64_t *uValue;
} tmp;
tmp.fValue = v;
uint64_t *p = tmp.uValue;
while (n--)
{
*p = byte_swap(*p);
p ++;
}
}
#if defined(WCHART_16BIT)
inline wchar_t byte_swap(wchar_t v)
{
return wchar_t(byte_swap(uint16_t(v)));
}
#elif defined(WCHART_32BIT)
inline wchar_t byte_swap(wchar_t v)
{
return wchar_t(byte_swap(uint32_t(v)));
}
#endif
}
#endif /* LSP_PLUG_IN_COMMON_ARCH_GENERIC_ENDIAN_H_ */
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