gecko/media/libvpx/vpx_ports/mem.h
Ralph Giles 455ab31118 Bug 1105858 - Bump libvpx for arm toolchain work-arounds. r=kinetik
Update our in-tree libvpx code to upstream master from September 25.
This includes a work-around added to skip neon intrinsics which
android toolchains fail to compile properly. See bug 1087096.

Results of running ./update.py --ndk ~/android/android-ndk-r9 --commit
587ff646f
2014-11-27 13:15:00 -08:00

53 lines
1.6 KiB
C

/*
* 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_H_
#define VPX_PORTS_MEM_H_
#include "vpx_config.h"
#include "vpx/vpx_integer.h"
#if (defined(__GNUC__) && __GNUC__) || defined(__SUNPRO_C)
#define DECLARE_ALIGNED(n,typ,val) typ val __attribute__ ((aligned (n)))
#elif defined(_MSC_VER)
#define DECLARE_ALIGNED(n,typ,val) __declspec(align(n)) typ val
#else
#warning No alignment directives known for this compiler.
#define DECLARE_ALIGNED(n,typ,val) typ val
#endif
/* Declare an aligned array on the stack, for situations where the stack
* pointer may not have the alignment we expect. Creates an array with a
* modified name, then defines val to be a pointer, and aligns that pointer
* within the array.
*/
#define DECLARE_ALIGNED_ARRAY(a,typ,val,n)\
typ val##_[(n)+(a)/sizeof(typ)+1];\
typ *val = (typ*)((((intptr_t)val##_)+(a)-1)&((intptr_t)-(a)))
/* Indicates that the usage of the specified variable has been audited to assure
* that it's safe to use uninitialized. Silences 'may be used uninitialized'
* warnings on gcc.
*/
#if defined(__GNUC__) && __GNUC__
#define UNINITIALIZED_IS_SAFE(x) x=x
#else
#define UNINITIALIZED_IS_SAFE(x) x
#endif
#if HAVE_NEON && defined(_MSC_VER)
#define __builtin_prefetch(x)
#endif
#endif // VPX_PORTS_MEM_H_