1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/media/libvpx/vpx_ports/mem_ops_aligned.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,157 @@
1.4 +/*
1.5 + * Copyright (c) 2010 The WebM project authors. All Rights Reserved.
1.6 + *
1.7 + * Use of this source code is governed by a BSD-style license
1.8 + * that can be found in the LICENSE file in the root of the source
1.9 + * tree. An additional intellectual property rights grant can be found
1.10 + * in the file PATENTS. All contributing project authors may
1.11 + * be found in the AUTHORS file in the root of the source tree.
1.12 + */
1.13 +
1.14 +
1.15 +/* \file
1.16 + * \brief Provides portable memory access primitives for operating on aligned
1.17 + * data
1.18 + *
1.19 + * This file is split from mem_ops.h for easier maintenance. See mem_ops.h
1.20 + * for a more detailed description of these primitives.
1.21 + */
1.22 +#ifndef INCLUDED_BY_MEM_OPS_H
1.23 +#error Include mem_ops.h, not mem_ops_aligned.h directly.
1.24 +#endif
1.25 +
1.26 +/* Architectures that provide instructions for doing this byte swapping
1.27 + * could redefine these macros.
1.28 + */
1.29 +#define swap_endian_16(val,raw) do {\
1.30 + val = ((raw>>8) & 0x00ff) \
1.31 + | ((raw<<8) & 0xff00);\
1.32 + } while(0)
1.33 +#define swap_endian_32(val,raw) do {\
1.34 + val = ((raw>>24) & 0x000000ff) \
1.35 + | ((raw>>8) & 0x0000ff00) \
1.36 + | ((raw<<8) & 0x00ff0000) \
1.37 + | ((raw<<24) & 0xff000000); \
1.38 + } while(0)
1.39 +#define swap_endian_16_se(val,raw) do {\
1.40 + swap_endian_16(val,raw);\
1.41 + val = ((val << 16) >> 16);\
1.42 + } while(0)
1.43 +#define swap_endian_32_se(val,raw) swap_endian_32(val,raw)
1.44 +
1.45 +#define mem_get_ne_aligned_generic(end,sz) \
1.46 + static unsigned MEM_VALUE_T mem_get_##end##sz##_aligned(const void *vmem) {\
1.47 + const uint##sz##_t *mem = (const uint##sz##_t *)vmem;\
1.48 + return *mem;\
1.49 + }
1.50 +
1.51 +#define mem_get_sne_aligned_generic(end,sz) \
1.52 + static signed MEM_VALUE_T mem_get_s##end##sz##_aligned(const void *vmem) {\
1.53 + const int##sz##_t *mem = (const int##sz##_t *)vmem;\
1.54 + return *mem;\
1.55 + }
1.56 +
1.57 +#define mem_get_se_aligned_generic(end,sz) \
1.58 + static unsigned MEM_VALUE_T mem_get_##end##sz##_aligned(const void *vmem) {\
1.59 + const uint##sz##_t *mem = (const uint##sz##_t *)vmem;\
1.60 + unsigned MEM_VALUE_T val, raw = *mem;\
1.61 + swap_endian_##sz(val,raw);\
1.62 + return val;\
1.63 + }
1.64 +
1.65 +#define mem_get_sse_aligned_generic(end,sz) \
1.66 + static signed MEM_VALUE_T mem_get_s##end##sz##_aligned(const void *vmem) {\
1.67 + const int##sz##_t *mem = (const int##sz##_t *)vmem;\
1.68 + unsigned MEM_VALUE_T val, raw = *mem;\
1.69 + swap_endian_##sz##_se(val,raw);\
1.70 + return val;\
1.71 + }
1.72 +
1.73 +#define mem_put_ne_aligned_generic(end,sz) \
1.74 + static void mem_put_##end##sz##_aligned(void *vmem, MEM_VALUE_T val) {\
1.75 + uint##sz##_t *mem = (uint##sz##_t *)vmem;\
1.76 + *mem = (uint##sz##_t)val;\
1.77 + }
1.78 +
1.79 +#define mem_put_se_aligned_generic(end,sz) \
1.80 + static void mem_put_##end##sz##_aligned(void *vmem, MEM_VALUE_T val) {\
1.81 + uint##sz##_t *mem = (uint##sz##_t *)vmem, raw;\
1.82 + swap_endian_##sz(raw,val);\
1.83 + *mem = (uint##sz##_t)raw;\
1.84 + }
1.85 +
1.86 +#include "vpx_config.h"
1.87 +#if CONFIG_BIG_ENDIAN
1.88 +#define mem_get_be_aligned_generic(sz) mem_get_ne_aligned_generic(be,sz)
1.89 +#define mem_get_sbe_aligned_generic(sz) mem_get_sne_aligned_generic(be,sz)
1.90 +#define mem_get_le_aligned_generic(sz) mem_get_se_aligned_generic(le,sz)
1.91 +#define mem_get_sle_aligned_generic(sz) mem_get_sse_aligned_generic(le,sz)
1.92 +#define mem_put_be_aligned_generic(sz) mem_put_ne_aligned_generic(be,sz)
1.93 +#define mem_put_le_aligned_generic(sz) mem_put_se_aligned_generic(le,sz)
1.94 +#else
1.95 +#define mem_get_be_aligned_generic(sz) mem_get_se_aligned_generic(be,sz)
1.96 +#define mem_get_sbe_aligned_generic(sz) mem_get_sse_aligned_generic(be,sz)
1.97 +#define mem_get_le_aligned_generic(sz) mem_get_ne_aligned_generic(le,sz)
1.98 +#define mem_get_sle_aligned_generic(sz) mem_get_sne_aligned_generic(le,sz)
1.99 +#define mem_put_be_aligned_generic(sz) mem_put_se_aligned_generic(be,sz)
1.100 +#define mem_put_le_aligned_generic(sz) mem_put_ne_aligned_generic(le,sz)
1.101 +#endif
1.102 +
1.103 +#undef mem_get_be16_aligned
1.104 +#define mem_get_be16_aligned mem_ops_wrap_symbol(mem_get_be16_aligned)
1.105 +mem_get_be_aligned_generic(16)
1.106 +
1.107 +#undef mem_get_be32_aligned
1.108 +#define mem_get_be32_aligned mem_ops_wrap_symbol(mem_get_be32_aligned)
1.109 +mem_get_be_aligned_generic(32)
1.110 +
1.111 +#undef mem_get_le16_aligned
1.112 +#define mem_get_le16_aligned mem_ops_wrap_symbol(mem_get_le16_aligned)
1.113 +mem_get_le_aligned_generic(16)
1.114 +
1.115 +#undef mem_get_le32_aligned
1.116 +#define mem_get_le32_aligned mem_ops_wrap_symbol(mem_get_le32_aligned)
1.117 +mem_get_le_aligned_generic(32)
1.118 +
1.119 +#undef mem_get_sbe16_aligned
1.120 +#define mem_get_sbe16_aligned mem_ops_wrap_symbol(mem_get_sbe16_aligned)
1.121 +mem_get_sbe_aligned_generic(16)
1.122 +
1.123 +#undef mem_get_sbe32_aligned
1.124 +#define mem_get_sbe32_aligned mem_ops_wrap_symbol(mem_get_sbe32_aligned)
1.125 +mem_get_sbe_aligned_generic(32)
1.126 +
1.127 +#undef mem_get_sle16_aligned
1.128 +#define mem_get_sle16_aligned mem_ops_wrap_symbol(mem_get_sle16_aligned)
1.129 +mem_get_sle_aligned_generic(16)
1.130 +
1.131 +#undef mem_get_sle32_aligned
1.132 +#define mem_get_sle32_aligned mem_ops_wrap_symbol(mem_get_sle32_aligned)
1.133 +mem_get_sle_aligned_generic(32)
1.134 +
1.135 +#undef mem_put_be16_aligned
1.136 +#define mem_put_be16_aligned mem_ops_wrap_symbol(mem_put_be16_aligned)
1.137 +mem_put_be_aligned_generic(16)
1.138 +
1.139 +#undef mem_put_be32_aligned
1.140 +#define mem_put_be32_aligned mem_ops_wrap_symbol(mem_put_be32_aligned)
1.141 +mem_put_be_aligned_generic(32)
1.142 +
1.143 +#undef mem_put_le16_aligned
1.144 +#define mem_put_le16_aligned mem_ops_wrap_symbol(mem_put_le16_aligned)
1.145 +mem_put_le_aligned_generic(16)
1.146 +
1.147 +#undef mem_put_le32_aligned
1.148 +#define mem_put_le32_aligned mem_ops_wrap_symbol(mem_put_le32_aligned)
1.149 +mem_put_le_aligned_generic(32)
1.150 +
1.151 +#undef mem_get_ne_aligned_generic
1.152 +#undef mem_get_se_aligned_generic
1.153 +#undef mem_get_sne_aligned_generic
1.154 +#undef mem_get_sse_aligned_generic
1.155 +#undef mem_put_ne_aligned_generic
1.156 +#undef mem_put_se_aligned_generic
1.157 +#undef swap_endian_16
1.158 +#undef swap_endian_32
1.159 +#undef swap_endian_16_se
1.160 +#undef swap_endian_32_se
