The Tor Browser / file comparison
comparison: media/libvpx/vpx_ports/mem.h
media/libvpx/vpx_ports/mem.h
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
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| -1:000000000000 | 0:fe14d99bbb7f |
|---|---|
| 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 | |
| 12 #ifndef VPX_PORTS_MEM_H | |
| 13 #define VPX_PORTS_MEM_H | |
| 14 | |
| 15 #include "vpx_config.h" | |
| 16 #include "vpx/vpx_integer.h" | |
| 17 | |
| 18 #if (defined(__GNUC__) && __GNUC__) || defined(__SUNPRO_C) | |
| 19 #define DECLARE_ALIGNED(n,typ,val) typ val __attribute__ ((aligned (n))) | |
| 20 #elif defined(_MSC_VER) | |
| 21 #define DECLARE_ALIGNED(n,typ,val) __declspec(align(n)) typ val | |
| 22 #else | |
| 23 #warning No alignment directives known for this compiler. | |
| 24 #define DECLARE_ALIGNED(n,typ,val) typ val | |
| 25 #endif | |
| 26 #endif | |
| 27 | |
| 28 | |
| 29 /* Declare an aligned array on the stack, for situations where the stack | |
| 30 * pointer may not have the alignment we expect. Creates an array with a | |
| 31 * modified name, then defines val to be a pointer, and aligns that pointer | |
| 32 * within the array. | |
| 33 */ | |
| 34 #define DECLARE_ALIGNED_ARRAY(a,typ,val,n)\ | |
| 35 typ val##_[(n)+(a)/sizeof(typ)+1];\ | |
| 36 typ *val = (typ*)((((intptr_t)val##_)+(a)-1)&((intptr_t)-(a))) | |
| 37 | |
| 38 | |
| 39 /* Indicates that the usage of the specified variable has been audited to assure | |
| 40 * that it's safe to use uninitialized. Silences 'may be used uninitialized' | |
| 41 * warnings on gcc. | |
| 42 */ | |
| 43 #if defined(__GNUC__) && __GNUC__ | |
| 44 #define UNINITIALIZED_IS_SAFE(x) x=x | |
| 45 #else | |
| 46 #define UNINITIALIZED_IS_SAFE(x) x | |
| 47 #endif |
