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_PORTS_MEM_H_ 12 #define VPX_PORTS_MEM_H_ 13 14 #include "vpx_config.h" 15 #include "vpx/vpx_integer.h" 16 17 #if (defined(__GNUC__) && __GNUC__) || defined(__SUNPRO_C) 18 #define DECLARE_ALIGNED(n, typ, val) typ val __attribute__((aligned(n))) 19 #elif defined(_MSC_VER) 20 #define DECLARE_ALIGNED(n, typ, val) __declspec(align(n)) typ val 21 #else 22 #warning No alignment directives known for this compiler. 23 #define DECLARE_ALIGNED(n, typ, val) typ val 24 #endif 25 26 #if defined(__GNUC__) && __GNUC__ >= 4 && !defined(_WIN32) 27 #define DECLARE_PROTECTED(decl) decl __attribute__((visibility("protected"))) 28 #else 29 #define DECLARE_PROTECTED(decl) decl 30 #endif 31 32 #if HAVE_NEON && defined(_MSC_VER) 33 #define __builtin_prefetch(x) 34 #endif 35 36 /* Shift down with rounding */ 37 #define ROUND_POWER_OF_TWO(value, n) (((value) + (1 << ((n)-1))) >> (n)) 38 #define ROUND64_POWER_OF_TWO(value, n) (((value) + (1ULL << ((n)-1))) >> (n)) 39 40 #define ALIGN_POWER_OF_TWO(value, n) \ 41 (((value) + ((1 << (n)) - 1)) & ~((1 << (n)) - 1)) 42 43 #define CONVERT_TO_SHORTPTR(x) ((uint16_t *)(((uintptr_t)(x)) << 1)) 44 #define CAST_TO_SHORTPTR(x) ((uint16_t *)((uintptr_t)(x))) 45 #if CONFIG_VP9_HIGHBITDEPTH 46 #define CONVERT_TO_BYTEPTR(x) ((uint8_t *)(((uintptr_t)(x)) >> 1)) 47 #define CAST_TO_BYTEPTR(x) ((uint8_t *)((uintptr_t)(x))) 48 #endif // CONFIG_VP9_HIGHBITDEPTH 49 50 #if !defined(__has_feature) 51 #define __has_feature(x) 0 52 #endif // !defined(__has_feature) 53 54 #if __has_feature(address_sanitizer) || defined(__SANITIZE_ADDRESS__) 55 #define VPX_WITH_ASAN 1 56 #else 57 #define VPX_WITH_ASAN 0 58 #endif // __has_feature(address_sanitizer) || defined(__SANITIZE_ADDRESS__) 59 60 #endif // VPX_PORTS_MEM_H_ 61
