| /* |
| * 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 = ((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 |
| |
| #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 |
| |
| #endif // AOM_PORTS_MEM_OPS_ALIGNED_H_ |