173 строки
7.2 KiB
C
173 строки
7.2 KiB
C
/*
|
|
* Copyright (c) 2016, Alliance for Open Media. All rights reserved
|
|
*
|
|
* This source code is subject to the terms of the BSD 2 Clause License and
|
|
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
|
|
* was not distributed with this source code in the LICENSE file, you can
|
|
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
|
|
* Media Patent License 1.0 was not distributed with this source code in the
|
|
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
|
|
*/
|
|
|
|
#ifndef AOM_PORTS_MEM_OPS_ALIGNED_H_
|
|
#define AOM_PORTS_MEM_OPS_ALIGNED_H_
|
|
|
|
#include "aom/aom_integer.h"
|
|
|
|
/* \file
|
|
* \brief Provides portable memory access primitives for operating on aligned
|
|
* data
|
|
*
|
|
* This file is split from mem_ops.h for easier maintenance. See mem_ops.h
|
|
* for a more detailed description of these primitives.
|
|
*/
|
|
#ifndef INCLUDED_BY_MEM_OPS_H
|
|
#error Include mem_ops.h, not mem_ops_aligned.h directly.
|
|
#endif
|
|
|
|
/* Architectures that provide instructions for doing this byte swapping
|
|
* could redefine these macros.
|
|
*/
|
|
#define swap_endian_16(val, raw) \
|
|
do { \
|
|
val = (uint16_t)(((raw >> 8) & 0x00ff) | ((raw << 8) & 0xff00)); \
|
|
} while (0)
|
|
#define swap_endian_32(val, raw) \
|
|
do { \
|
|
val = ((raw >> 24) & 0x000000ff) | ((raw >> 8) & 0x0000ff00) | \
|
|
((raw << 8) & 0x00ff0000) | ((raw << 24) & 0xff000000); \
|
|
} while (0)
|
|
#define swap_endian_16_se(val, raw) \
|
|
do { \
|
|
swap_endian_16(val, raw); \
|
|
val = ((val << 16) >> 16); \
|
|
} while (0)
|
|
#define swap_endian_32_se(val, raw) swap_endian_32(val, raw)
|
|
|
|
#define mem_get_ne_aligned_generic(end, sz) \
|
|
static AOM_INLINE unsigned MEM_VALUE_T mem_get_##end##sz##_aligned( \
|
|
const void *vmem) { \
|
|
const uint##sz##_t *mem = (const uint##sz##_t *)vmem; \
|
|
return *mem; \
|
|
}
|
|
|
|
#define mem_get_sne_aligned_generic(end, sz) \
|
|
static AOM_INLINE signed MEM_VALUE_T mem_get_s##end##sz##_aligned( \
|
|
const void *vmem) { \
|
|
const int##sz##_t *mem = (const int##sz##_t *)vmem; \
|
|
return *mem; \
|
|
}
|
|
|
|
#define mem_get_se_aligned_generic(end, sz) \
|
|
static AOM_INLINE unsigned MEM_VALUE_T mem_get_##end##sz##_aligned( \
|
|
const void *vmem) { \
|
|
const uint##sz##_t *mem = (const uint##sz##_t *)vmem; \
|
|
unsigned MEM_VALUE_T val, raw = *mem; \
|
|
swap_endian_##sz(val, raw); \
|
|
return val; \
|
|
}
|
|
|
|
#define mem_get_sse_aligned_generic(end, sz) \
|
|
static AOM_INLINE signed MEM_VALUE_T mem_get_s##end##sz##_aligned( \
|
|
const void *vmem) { \
|
|
const int##sz##_t *mem = (const int##sz##_t *)vmem; \
|
|
unsigned MEM_VALUE_T val, raw = *mem; \
|
|
swap_endian_##sz##_se(val, raw); \
|
|
return val; \
|
|
}
|
|
|
|
#define mem_put_ne_aligned_generic(end, sz) \
|
|
static AOM_INLINE void mem_put_##end##sz##_aligned(void *vmem, \
|
|
MEM_VALUE_T val) { \
|
|
uint##sz##_t *mem = (uint##sz##_t *)vmem; \
|
|
*mem = (uint##sz##_t)val; \
|
|
}
|
|
|
|
#define mem_put_se_aligned_generic(end, sz) \
|
|
static AOM_INLINE void mem_put_##end##sz##_aligned(void *vmem, \
|
|
MEM_VALUE_T val) { \
|
|
uint##sz##_t *mem = (uint##sz##_t *)vmem, raw; \
|
|
swap_endian_##sz(raw, val); \
|
|
*mem = (uint##sz##_t)raw; \
|
|
}
|
|
|
|
#include "aom_config.h"
|
|
#if CONFIG_BIG_ENDIAN
|
|
#define mem_get_be_aligned_generic(sz) mem_get_ne_aligned_generic(be, sz)
|
|
#define mem_get_sbe_aligned_generic(sz) mem_get_sne_aligned_generic(be, sz)
|
|
#define mem_get_le_aligned_generic(sz) mem_get_se_aligned_generic(le, sz)
|
|
#define mem_get_sle_aligned_generic(sz) mem_get_sse_aligned_generic(le, sz)
|
|
#define mem_put_be_aligned_generic(sz) mem_put_ne_aligned_generic(be, sz)
|
|
#define mem_put_le_aligned_generic(sz) mem_put_se_aligned_generic(le, sz)
|
|
#else
|
|
#define mem_get_be_aligned_generic(sz) mem_get_se_aligned_generic(be, sz)
|
|
#define mem_get_sbe_aligned_generic(sz) mem_get_sse_aligned_generic(be, sz)
|
|
#define mem_get_le_aligned_generic(sz) mem_get_ne_aligned_generic(le, sz)
|
|
#define mem_get_sle_aligned_generic(sz) mem_get_sne_aligned_generic(le, sz)
|
|
#define mem_put_be_aligned_generic(sz) mem_put_se_aligned_generic(be, sz)
|
|
#define mem_put_le_aligned_generic(sz) mem_put_ne_aligned_generic(le, sz)
|
|
#endif
|
|
|
|
/* clang-format off */
|
|
#undef mem_get_be16_aligned
|
|
#define mem_get_be16_aligned mem_ops_wrap_symbol(mem_get_be16_aligned)
|
|
mem_get_be_aligned_generic(16)
|
|
|
|
#undef mem_get_be32_aligned
|
|
#define mem_get_be32_aligned mem_ops_wrap_symbol(mem_get_be32_aligned)
|
|
mem_get_be_aligned_generic(32)
|
|
|
|
#undef mem_get_le16_aligned
|
|
#define mem_get_le16_aligned mem_ops_wrap_symbol(mem_get_le16_aligned)
|
|
mem_get_le_aligned_generic(16)
|
|
|
|
#undef mem_get_le32_aligned
|
|
#define mem_get_le32_aligned mem_ops_wrap_symbol(mem_get_le32_aligned)
|
|
mem_get_le_aligned_generic(32)
|
|
|
|
#undef mem_get_sbe16_aligned
|
|
#define mem_get_sbe16_aligned mem_ops_wrap_symbol(mem_get_sbe16_aligned)
|
|
mem_get_sbe_aligned_generic(16)
|
|
|
|
#undef mem_get_sbe32_aligned
|
|
#define mem_get_sbe32_aligned mem_ops_wrap_symbol(mem_get_sbe32_aligned)
|
|
mem_get_sbe_aligned_generic(32)
|
|
|
|
#undef mem_get_sle16_aligned
|
|
#define mem_get_sle16_aligned mem_ops_wrap_symbol(mem_get_sle16_aligned)
|
|
mem_get_sle_aligned_generic(16)
|
|
|
|
#undef mem_get_sle32_aligned
|
|
#define mem_get_sle32_aligned mem_ops_wrap_symbol(mem_get_sle32_aligned)
|
|
mem_get_sle_aligned_generic(32)
|
|
|
|
#undef mem_put_be16_aligned
|
|
#define mem_put_be16_aligned mem_ops_wrap_symbol(mem_put_be16_aligned)
|
|
mem_put_be_aligned_generic(16)
|
|
|
|
#undef mem_put_be32_aligned
|
|
#define mem_put_be32_aligned mem_ops_wrap_symbol(mem_put_be32_aligned)
|
|
mem_put_be_aligned_generic(32)
|
|
|
|
#undef mem_put_le16_aligned
|
|
#define mem_put_le16_aligned mem_ops_wrap_symbol(mem_put_le16_aligned)
|
|
mem_put_le_aligned_generic(16)
|
|
|
|
#undef mem_put_le32_aligned
|
|
#define mem_put_le32_aligned mem_ops_wrap_symbol(mem_put_le32_aligned)
|
|
mem_put_le_aligned_generic(32)
|
|
|
|
#undef mem_get_ne_aligned_generic
|
|
#undef mem_get_se_aligned_generic
|
|
#undef mem_get_sne_aligned_generic
|
|
#undef mem_get_sse_aligned_generic
|
|
#undef mem_put_ne_aligned_generic
|
|
#undef mem_put_se_aligned_generic
|
|
#undef swap_endian_16
|
|
#undef swap_endian_32
|
|
#undef swap_endian_16_se
|
|
#undef swap_endian_32_se
|
|
/* clang-format on */
|
|
|
|
#endif // AOM_PORTS_MEM_OPS_ALIGNED_H_
|