| /* |
| * Copyright (c) 2010 The WebM project authors. All Rights Reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| #ifndef VPX_PORTS_MEM_OPS_ALIGNED_H_ |
| #define VPX_PORTS_MEM_OPS_ALIGNED_H_ |
| |
| #include "vpx/vpx_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 VPX_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 VPX_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 VPX_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 VPX_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 VPX_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 VPX_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 "vpx_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 // VPX_PORTS_MEM_OPS_ALIGNED_H_ |