1 /* 2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #ifndef VPX_VPX_PORTS_MEM_H_ 12 #define VPX_VPX_PORTS_MEM_H_ 13 14 #if (defined(__GNUC__) && __GNUC__) || defined(__SUNPRO_C) 15 #define DECLARE_ALIGNED(n, typ, val) typ val __attribute__((aligned(n))) 16 #elif defined(_MSC_VER) 17 #define DECLARE_ALIGNED(n, typ, val) __declspec(align(n)) typ val 18 #else 19 #warning No alignment directives known for this compiler. 20 #define DECLARE_ALIGNED(n, typ, val) typ val 21 #endif 22 23 #if HAVE_NEON && defined(_MSC_VER) 24 #define __builtin_prefetch(x) 25 #endif 26 27 /* Shift down with rounding */ 28 #define ROUND_POWER_OF_TWO(value, n) (((value) + (1 << ((n)-1))) >> (n)) 29 #define ROUND64_POWER_OF_TWO(value, n) (((value) + (1ULL << ((n)-1))) >> (n)) 30 31 #define ALIGN_POWER_OF_TWO(value, n) \ 32 (((value) + ((1 << (n)) - 1)) & ~((1 << (n)) - 1)) 33 34 #define CONVERT_TO_SHORTPTR(x) ((uint16_t *)(((uintptr_t)(x)) << 1)) 35 #define CAST_TO_SHORTPTR(x) ((uint16_t *)((uintptr_t)(x))) 36 #if CONFIG_VP9_HIGHBITDEPTH 37 #define CONVERT_TO_BYTEPTR(x) ((uint8_t *)(((uintptr_t)(x)) >> 1)) 38 #define CAST_TO_BYTEPTR(x) ((uint8_t *)((uintptr_t)(x))) 39 #endif // CONFIG_VP9_HIGHBITDEPTH 40 41 #if !defined(__has_feature) 42 #define __has_feature(x) 0 43 #endif // !defined(__has_feature) 44 45 #if __has_feature(address_sanitizer) || defined(__SANITIZE_ADDRESS__) 46 #define VPX_WITH_ASAN 1 47 #else 48 #define VPX_WITH_ASAN 0 49 #endif // __has_feature(address_sanitizer) || defined(__SANITIZE_ADDRESS__) 50 51 #endif // VPX_VPX_PORTS_MEM_H_ 52