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Import aom library

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This is the reference implementation for the Alliance for Open Media's av1 video code.

The commit used was 4d668d7feb1f8abd809d1bca0418570a7f142a36.
This commit is contained in:
trav90 2018-10-15 21:45:30 -05:00 • committed by Roy Tam
commit edc8d83307
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141
third_party/aom/aom_ports/aom_once.h vendored Normal file
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/*
* Copyright (c) 2016, Alliance for Open Media. All rights reserved
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file, you can
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
* Media Patent License 1.0 was not distributed with this source code in the
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
#ifndef AOM_PORTS_AOM_ONCE_H_
#define AOM_PORTS_AOM_ONCE_H_
#include "aom_config.h"
/* Implement a function wrapper to guarantee initialization
* thread-safety for library singletons.
*
* NOTE: These functions use static locks, and can only be
* used with one common argument per compilation unit. So
*
* file1.c:
* aom_once(foo);
* ...
* aom_once(foo);
*
* file2.c:
* aom_once(bar);
*
* will ensure foo() and bar() are each called only once, but in
*
* file1.c:
* aom_once(foo);
* aom_once(bar):
*
* bar() will never be called because the lock is used up
* by the call to foo().
*/
#if CONFIG_MULTITHREAD && defined(_WIN32)
#include <windows.h>
#include <stdlib.h>
/* Declare a per-compilation-unit state variable to track the progress
* of calling func() only once. This must be at global scope because
* local initializers are not thread-safe in MSVC prior to Visual
* Studio 2015.
*
* As a static, once_state will be zero-initialized as program start.
*/
static LONG once_state;
static void once(void (*func)(void)) {
/* Try to advance once_state from its initial value of 0 to 1.
* Only one thread can succeed in doing so.
*/
if (InterlockedCompareExchange(&once_state, 1, 0) == 0) {
/* We're the winning thread, having set once_state to 1.
* Call our function. */
func();
/* Now advance once_state to 2, unblocking any other threads. */
InterlockedIncrement(&once_state);
return;
}
/* We weren't the winning thread, but we want to block on
* the state variable so we don't return before func()
* has finished executing elsewhere.
*
* Try to advance once_state from 2 to 2, which is only possible
* after the winning thead advances it from 1 to 2.
*/
while (InterlockedCompareExchange(&once_state, 2, 2) != 2) {
/* State isn't yet 2. Try again.
*
* We are used for singleton initialization functions,
* which should complete quickly. Contention will likewise
* be rare, so it's worthwhile to use a simple but cpu-
* intensive busy-wait instead of successive backoff,
* waiting on a kernel object, or another heavier-weight scheme.
*
* We can at least yield our timeslice.
*/
Sleep(0);
}
/* We've seen once_state advance to 2, so we know func()
* has been called. And we've left once_state as we found it,
* so other threads will have the same experience.
*
* It's safe to return now.
*/
return;
}
#elif CONFIG_MULTITHREAD && defined(__OS2__)
#define INCL_DOS
#include <os2.h>
static void once(void (*func)(void)) {
static int done;
/* If the initialization is complete, return early. */
if (done) return;
/* Causes all other threads in the process to block themselves
* and give up their time slice.
*/
DosEnterCritSec();
if (!done) {
func();
done = 1;
}
/* Restores normal thread dispatching for the current process. */
DosExitCritSec();
}
#elif CONFIG_MULTITHREAD && HAVE_PTHREAD_H
#include <pthread.h>
static void once(void (*func)(void)) {
static pthread_once_t lock = PTHREAD_ONCE_INIT;
pthread_once(&lock, func);
}
#else
/* No-op version that performs no synchronization. *_rtcd() is idempotent,
* so as long as your platform provides atomic loads/stores of pointers
* no synchronization is strictly necessary.
*/
static void once(void (*func)(void)) {
static int done;
if (!done) {
func();
done = 1;
}
}
#endif
#endif // AOM_PORTS_AOM_ONCE_H_

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##
## Copyright (c) 2017, Alliance for Open Media. All rights reserved
##
## This source code is subject to the terms of the BSD 2 Clause License and
## the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
## was not distributed with this source code in the LICENSE file, you can
## obtain it at www.aomedia.org/license/software. If the Alliance for Open
## Media Patent License 1.0 was not distributed with this source code in the
## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
##
set(AOM_PORTS_INCLUDES
"${AOM_ROOT}/aom_ports/aom_once.h"
"${AOM_ROOT}/aom_ports/aom_timer.h"
"${AOM_ROOT}/aom_ports/bitops.h"
"${AOM_ROOT}/aom_ports/emmintrin_compat.h"
"${AOM_ROOT}/aom_ports/mem.h"
"${AOM_ROOT}/aom_ports/mem_ops.h"
"${AOM_ROOT}/aom_ports/mem_ops_aligned.h"
"${AOM_ROOT}/aom_ports/msvc.h"
"${AOM_ROOT}/aom_ports/system_state.h")
set(AOM_PORTS_INCLUDES_X86
"${AOM_ROOT}/aom_ports/x86_abi_support.asm")
set(AOM_PORTS_ASM_MMX "${AOM_ROOT}/aom_ports/emms.asm")
set(AOM_PORTS_SOURCES_ARM
"${AOM_ROOT}/aom_ports/arm.h"
"${AOM_ROOT}/aom_ports/arm_cpudetect.c")
# For arm targets and targets where HAVE_MMX is true:
# Creates the aom_ports build target, adds the includes in aom_ports to the
# target, and makes libaom depend on it.
# Otherwise:
# Adds the includes in aom_ports to the libaom target.
# For all target platforms:
# The libaom target must exist before this function is called.
function (setup_aom_ports_targets)
if (HAVE_MMX)
add_asm_library("aom_ports" "AOM_PORTS_ASM_MMX" "aom")
set(aom_ports_has_symbols 1)
elseif ("${AOM_TARGET_CPU}" MATCHES "arm")
add_library(aom_ports OBJECT ${AOM_PORTS_SOURCES_ARM})
set(aom_ports_has_symbols 1)
list(APPEND AOM_LIB_TARGETS aom_ports)
target_sources(aom PRIVATE $<TARGET_OBJECTS:aom_ports>)
endif ()
if (aom_ports_has_symbols)
target_sources(aom_ports PUBLIC ${AOM_PORTS_INCLUDES})
if ("${AOM_TARGET_CPU}" STREQUAL "x86" OR
"${AOM_TARGET_CPU}" STREQUAL "x86_64")
target_sources(aom_ports PUBLIC ${AOM_PORTS_INCLUDES_X86})
endif ()
set(AOM_LIB_TARGETS ${AOM_LIB_TARGETS} PARENT_SCOPE)
else ()
target_sources(aom PUBLIC ${AOM_PORTS_INCLUDES})
if ("${AOM_TARGET_CPU}" STREQUAL "x86" OR
"${AOM_TARGET_CPU}" STREQUAL "x86_64")
target_sources(aom PUBLIC ${AOM_PORTS_INCLUDES_X86})
endif ()
endif ()
endfunction ()

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##
## Copyright (c) 2016, Alliance for Open Media. All rights reserved
##
## This source code is subject to the terms of the BSD 2 Clause License and
## the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
## was not distributed with this source code in the LICENSE file, you can
## obtain it at www.aomedia.org/license/software. If the Alliance for Open
## Media Patent License 1.0 was not distributed with this source code in the
## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
##
PORTS_SRCS-yes += aom_ports.mk
PORTS_SRCS-yes += bitops.h
PORTS_SRCS-yes += mem.h
PORTS_SRCS-yes += msvc.h
PORTS_SRCS-yes += system_state.h
PORTS_SRCS-yes += aom_timer.h
ifeq ($(ARCH_X86)$(ARCH_X86_64),yes)
PORTS_SRCS-yes += emms.asm
PORTS_SRCS-yes += x86.h
PORTS_SRCS-yes += x86_abi_support.asm
endif
PORTS_SRCS-$(ARCH_ARM) += arm_cpudetect.c
PORTS_SRCS-$(ARCH_ARM) += arm.h

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/*
* Copyright (c) 2016, Alliance for Open Media. All rights reserved
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file, you can
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
* Media Patent License 1.0 was not distributed with this source code in the
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
#ifndef AOM_PORTS_AOM_TIMER_H_
#define AOM_PORTS_AOM_TIMER_H_
#include "./aom_config.h"
#include "aom/aom_integer.h"
#if CONFIG_OS_SUPPORT
#if defined(_WIN32)
/*
* Win32 specific includes
*/
#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN
#endif
#include <windows.h>
#else
/*
* POSIX specific includes
*/
#include <sys/time.h>
/* timersub is not provided by msys at this time. */
#ifndef timersub
#define timersub(a, b, result) \
do { \
(result)->tv_sec = (a)->tv_sec - (b)->tv_sec; \
(result)->tv_usec = (a)->tv_usec - (b)->tv_usec; \
if ((result)->tv_usec < 0) { \
--(result)->tv_sec; \
(result)->tv_usec += 1000000; \
} \
} while (0)
#endif
#endif
struct aom_usec_timer {
#if defined(_WIN32)
LARGE_INTEGER begin, end;
#else
struct timeval begin, end;
#endif
};
static INLINE void aom_usec_timer_start(struct aom_usec_timer *t) {
#if defined(_WIN32)
QueryPerformanceCounter(&t->begin);
#else
gettimeofday(&t->begin, NULL);
#endif
}
static INLINE void aom_usec_timer_mark(struct aom_usec_timer *t) {
#if defined(_WIN32)
QueryPerformanceCounter(&t->end);
#else
gettimeofday(&t->end, NULL);
#endif
}
static INLINE int64_t aom_usec_timer_elapsed(struct aom_usec_timer *t) {
#if defined(_WIN32)
LARGE_INTEGER freq, diff;
diff.QuadPart = t->end.QuadPart - t->begin.QuadPart;
QueryPerformanceFrequency(&freq);
return diff.QuadPart * 1000000 / freq.QuadPart;
#else
struct timeval diff;
timersub(&t->end, &t->begin, &diff);
return diff.tv_sec * 1000000 + diff.tv_usec;
#endif
}
#else /* CONFIG_OS_SUPPORT = 0*/
/* Empty timer functions if CONFIG_OS_SUPPORT = 0 */
#ifndef timersub
#define timersub(a, b, result)
#endif
struct aom_usec_timer {
void *dummy;
};
static INLINE void aom_usec_timer_start(struct aom_usec_timer *t) { (void)t; }
static INLINE void aom_usec_timer_mark(struct aom_usec_timer *t) { (void)t; }
static INLINE int aom_usec_timer_elapsed(struct aom_usec_timer *t) {
(void)t;
return 0;
}
#endif /* CONFIG_OS_SUPPORT */
#endif // AOM_PORTS_AOM_TIMER_H_

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/*
* Copyright (c) 2016, Alliance for Open Media. All rights reserved
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file, you can
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
* Media Patent License 1.0 was not distributed with this source code in the
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
#ifndef AOM_PORTS_ARM_H_
#define AOM_PORTS_ARM_H_
#include <stdlib.h>
#include "aom_config.h"
#ifdef __cplusplus
extern "C" {
#endif
/*ARMv5TE "Enhanced DSP" instructions.*/
#define HAS_EDSP 0x01
/*ARMv6 "Parallel" or "Media" instructions.*/
#define HAS_MEDIA 0x02
/*ARMv7 optional NEON instructions.*/
#define HAS_NEON 0x04
int arm_cpu_caps(void);
// Earlier gcc compilers have issues with some neon intrinsics
#if !defined(__clang__) && defined(__GNUC__) && __GNUC__ == 4 && \
__GNUC_MINOR__ <= 6
#define AOM_INCOMPATIBLE_GCC
#endif
#ifdef __cplusplus
} // extern "C"
#endif
#endif // AOM_PORTS_ARM_H_

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/*
* Copyright (c) 2016, Alliance for Open Media. All rights reserved
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file, you can
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
* Media Patent License 1.0 was not distributed with this source code in the
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
#include <stdlib.h>
#include <string.h>
#include "aom_ports/arm.h"
#include "./aom_config.h"
#ifdef WINAPI_FAMILY
#include <winapifamily.h>
#if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
#define getenv(x) NULL
#endif
#endif
static int arm_cpu_env_flags(int *flags) {
char *env;
env = getenv("AOM_SIMD_CAPS");
if (env && *env) {
*flags = (int)strtol(env, NULL, 0);
return 0;
}
*flags = 0;
return -1;
}
static int arm_cpu_env_mask(void) {
char *env;
env = getenv("AOM_SIMD_CAPS_MASK");
return env && *env ? (int)strtol(env, NULL, 0) : ~0;
}
#if !CONFIG_RUNTIME_CPU_DETECT
int arm_cpu_caps(void) {
/* This function should actually be a no-op. There is no way to adjust any of
* these because the RTCD tables do not exist: the functions are called
* statically */
int flags;
int mask;
if (!arm_cpu_env_flags(&flags)) {
return flags;
}
mask = arm_cpu_env_mask();
#if HAVE_MEDIA
flags |= HAS_MEDIA;
#endif /* HAVE_MEDIA */
#if HAVE_NEON || HAVE_NEON_ASM
flags |= HAS_NEON;
#endif /* HAVE_NEON || HAVE_NEON_ASM */
return flags & mask;
}
#elif defined(_MSC_VER) /* end !CONFIG_RUNTIME_CPU_DETECT */
/*For GetExceptionCode() and EXCEPTION_ILLEGAL_INSTRUCTION.*/
#define WIN32_LEAN_AND_MEAN
#define WIN32_EXTRA_LEAN
#include <windows.h>
int arm_cpu_caps(void) {
int flags;
int mask;
if (!arm_cpu_env_flags(&flags)) {
return flags;
}
mask = arm_cpu_env_mask();
/* MSVC has no inline __asm support for ARM, but it does let you __emit
* instructions via their assembled hex code.
* All of these instructions should be essentially nops.
*/
#if HAVE_MEDIA
if (mask & HAS_MEDIA) {
__try {
/*SHADD8 r3,r3,r3*/
__emit(0xE6333F93);
flags |= HAS_MEDIA;
} __except (GetExceptionCode() == EXCEPTION_ILLEGAL_INSTRUCTION) {
/*Ignore exception.*/
}
}
#endif /* HAVE_MEDIA */
#if HAVE_NEON || HAVE_NEON_ASM
if (mask & HAS_NEON) {
__try {
/*VORR q0,q0,q0*/
__emit(0xF2200150);
flags |= HAS_NEON;
} __except (GetExceptionCode() == EXCEPTION_ILLEGAL_INSTRUCTION) {
/*Ignore exception.*/
}
}
#endif /* HAVE_NEON || HAVE_NEON_ASM */
return flags & mask;
}
#elif defined(__ANDROID__) /* end _MSC_VER */
#include <cpu-features.h>
int arm_cpu_caps(void) {
int flags;
int mask;
uint64_t features;
if (!arm_cpu_env_flags(&flags)) {
return flags;
}
mask = arm_cpu_env_mask();
features = android_getCpuFeatures();
#if HAVE_MEDIA
flags |= HAS_MEDIA;
#endif /* HAVE_MEDIA */
#if HAVE_NEON || HAVE_NEON_ASM
if (features & ANDROID_CPU_ARM_FEATURE_NEON) flags |= HAS_NEON;
#endif /* HAVE_NEON || HAVE_NEON_ASM */
return flags & mask;
}
#elif defined(__linux__) /* end __ANDROID__ */
#include <stdio.h>
int arm_cpu_caps(void) {
FILE *fin;
int flags;
int mask;
if (!arm_cpu_env_flags(&flags)) {
return flags;
}
mask = arm_cpu_env_mask();
/* Reading /proc/self/auxv would be easier, but that doesn't work reliably
* on Android.
* This also means that detection will fail in Scratchbox.
*/
fin = fopen("/proc/cpuinfo", "r");
if (fin != NULL) {
/* 512 should be enough for anybody (it's even enough for all the flags
* that x86 has accumulated... so far).
*/
char buf[512];
while (fgets(buf, 511, fin) != NULL) {
#if HAVE_NEON || HAVE_NEON_ASM
if (memcmp(buf, "Features", 8) == 0) {
char *p;
p = strstr(buf, " neon");
if (p != NULL && (p[5] == ' ' || p[5] == '\n')) {
flags |= HAS_NEON;
}
}
#endif /* HAVE_NEON || HAVE_NEON_ASM */
#if HAVE_MEDIA
if (memcmp(buf, "CPU architecture:", 17) == 0) {
int version;
version = atoi(buf + 17);
if (version >= 6) {
flags |= HAS_MEDIA;
}
}
#endif /* HAVE_MEDIA */
}
fclose(fin);
}
return flags & mask;
}
#else /* end __linux__ */
#error \
"--enable-runtime-cpu-detect selected, but no CPU detection method " \
"available for your platform. Reconfigure with --disable-runtime-cpu-detect."
#endif

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/*
* Copyright (c) 2016, Alliance for Open Media. All rights reserved
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file, you can
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
* Media Patent License 1.0 was not distributed with this source code in the
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
#ifndef AOM_PORTS_BITOPS_H_
#define AOM_PORTS_BITOPS_H_
#include <assert.h>
#include "aom_ports/msvc.h"
#ifdef _MSC_VER
#if defined(_M_X64) || defined(_M_IX86)
#include <intrin.h>
#define USE_MSC_INTRINSICS
#endif
#endif
#ifdef __cplusplus
extern "C" {
#endif
// These versions of get_msb() are only valid when n != 0 because all
// of the optimized versions are undefined when n == 0:
// https://gcc.gnu.org/onlinedocs/gcc/Other-Builtins.html
// use GNU builtins where available.
#if defined(__GNUC__) && \
((__GNUC__ == 3 && __GNUC_MINOR__ >= 4) || __GNUC__ >= 4)
static INLINE int get_msb(unsigned int n) {
assert(n != 0);
return 31 ^ __builtin_clz(n);
}
#elif defined(USE_MSC_INTRINSICS)
#pragma intrinsic(_BitScanReverse)
static INLINE int get_msb(unsigned int n) {
unsigned long first_set_bit;
assert(n != 0);
_BitScanReverse(&first_set_bit, n);
return first_set_bit;
}
#undef USE_MSC_INTRINSICS
#else
// Returns (int)floor(log2(n)). n must be > 0.
static INLINE int get_msb(unsigned int n) {
int log = 0;
unsigned int value = n;
int i;
assert(n != 0);
for (i = 4; i >= 0; --i) {
const int shift = (1 << i);
const unsigned int x = value >> shift;
if (x != 0) {
value = x;
log += shift;
}
}
return log;
}
#endif
#ifdef __cplusplus
} // extern "C"
#endif
#endif // AOM_PORTS_BITOPS_H_

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/*
* Copyright (c) 2016, Alliance for Open Media. All rights reserved
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file, you can
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
* Media Patent License 1.0 was not distributed with this source code in the
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
#ifndef AOM_PORTS_CONFIG_H_
#define AOM_PORTS_CONFIG_H_
#include "aom_config.h"
#endif // AOM_PORTS_CONFIG_H_

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/*
* Copyright (c) 2016, Alliance for Open Media. All rights reserved
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file, you can
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
* Media Patent License 1.0 was not distributed with this source code in the
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
#ifndef AOM_PORTS_EMMINTRIN_COMPAT_H_
#define AOM_PORTS_EMMINTRIN_COMPAT_H_
#if defined(__GNUC__) && __GNUC__ < 4
/* From emmintrin.h (gcc 4.5.3) */
/* Casts between various SP, DP, INT vector types. Note that these do no
conversion of values, they just change the type. */
extern __inline __m128
__attribute__((__gnu_inline__, __always_inline__, __artificial__))
_mm_castpd_ps(__m128d __A) {
return (__m128)__A;
}
extern __inline __m128i
__attribute__((__gnu_inline__, __always_inline__, __artificial__))
_mm_castpd_si128(__m128d __A) {
return (__m128i)__A;
}
extern __inline __m128d
__attribute__((__gnu_inline__, __always_inline__, __artificial__))
_mm_castps_pd(__m128 __A) {
return (__m128d)__A;
}
extern __inline __m128i
__attribute__((__gnu_inline__, __always_inline__, __artificial__))
_mm_castps_si128(__m128 __A) {
return (__m128i)__A;
}
extern __inline __m128
__attribute__((__gnu_inline__, __always_inline__, __artificial__))
_mm_castsi128_ps(__m128i __A) {
return (__m128)__A;
}
extern __inline __m128d
__attribute__((__gnu_inline__, __always_inline__, __artificial__))
_mm_castsi128_pd(__m128i __A) {
return (__m128d)__A;
}
#endif
#endif // AOM_PORTS_EMMINTRIN_COMPAT_H_

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;
; Copyright (c) 2016, Alliance for Open Media. All rights reserved
;
; This source code is subject to the terms of the BSD 2 Clause License and
; the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
; was not distributed with this source code in the LICENSE file, you can
; obtain it at www.aomedia.org/license/software. If the Alliance for Open
; Media Patent License 1.0 was not distributed with this source code in the
; PATENTS file, you can obtain it at www.aomedia.org/license/patent.
;
;
%include "aom_ports/x86_abi_support.asm"
section .text
global sym(aom_reset_mmx_state) PRIVATE
sym(aom_reset_mmx_state):
emms
ret
%if LIBAOM_YASM_WIN64
global sym(aom_winx64_fldcw) PRIVATE
sym(aom_winx64_fldcw):
sub rsp, 8
mov [rsp], rcx ; win x64 specific
fldcw [rsp]
add rsp, 8
ret
global sym(aom_winx64_fstcw) PRIVATE
sym(aom_winx64_fstcw):
sub rsp, 8
fstcw [rsp]
mov rax, [rsp]
add rsp, 8
ret
%endif

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/*
* Copyright (c) 2016, Alliance for Open Media. All rights reserved
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file, you can
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
* Media Patent License 1.0 was not distributed with this source code in the
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
#ifndef AOM_PORTS_MEM_H_
#define AOM_PORTS_MEM_H_
#include "aom_config.h"
#include "aom/aom_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
/* 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
/* Shift down with rounding for use when n >= 0, value >= 0 */
#define ROUND_POWER_OF_TWO(value, n) (((value) + (((1 << (n)) >> 1))) >> (n))
/* Shift down with rounding for signed integers, for use when n >= 0 */
#define ROUND_POWER_OF_TWO_SIGNED(value, n) \
(((value) < 0) ? -ROUND_POWER_OF_TWO(-(value), (n)) \
: ROUND_POWER_OF_TWO((value), (n)))
/* Shift down with rounding for use when n >= 0, value >= 0 for (64 bit) */
#define ROUND_POWER_OF_TWO_64(value, n) \
(((value) + ((((int64_t)1 << (n)) >> 1))) >> (n))
/* Shift down with rounding for signed integers, for use when n >= 0 (64 bit) */
#define ROUND_POWER_OF_TWO_SIGNED_64(value, n) \
(((value) < 0) ? -ROUND_POWER_OF_TWO_64(-(value), (n)) \
: ROUND_POWER_OF_TWO_64((value), (n)))
#define ALIGN_POWER_OF_TWO(value, n) \
(((value) + ((1 << (n)) - 1)) & ~((1 << (n)) - 1))
#define CONVERT_TO_SHORTPTR(x) ((uint16_t *)(((uintptr_t)(x)) << 1))
#if CONFIG_HIGHBITDEPTH
#define CONVERT_TO_BYTEPTR(x) ((uint8_t *)(((uintptr_t)(x)) >> 1))
#endif // CONFIG_HIGHBITDEPTH
#endif // AOM_PORTS_MEM_H_

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/*
* Copyright (c) 2016, Alliance for Open Media. All rights reserved
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file, you can
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
* Media Patent License 1.0 was not distributed with this source code in the
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
#ifndef AOM_PORTS_MEM_OPS_H_
#define AOM_PORTS_MEM_OPS_H_
/* \file
* \brief Provides portable memory access primitives
*
* This function provides portable primitives for getting and setting of
* signed and unsigned integers in 16, 24, and 32 bit sizes. The operations
* can be performed on unaligned data regardless of hardware support for
* unaligned accesses.
*
* The type used to pass the integral values may be changed by defining
* MEM_VALUE_T with the appropriate type. The type given must be an integral
* numeric type.
*
* The actual functions instantiated have the MEM_VALUE_T type name pasted
* on to the symbol name. This allows the developer to instantiate these
* operations for multiple types within the same translation unit. This is
* of somewhat questionable utility, but the capability exists nonetheless.
* Users not making use of this functionality should call the functions
* without the type name appended, and the preprocessor will take care of
* it.
*
* NOTE: This code is not supported on platforms where char > 1 octet ATM.
*/
#ifndef MAU_T
/* Minimum Access Unit for this target */
#define MAU_T unsigned char
#endif
#ifndef MEM_VALUE_T
#define MEM_VALUE_T int
#endif
#undef MEM_VALUE_T_SZ_BITS
#define MEM_VALUE_T_SZ_BITS (sizeof(MEM_VALUE_T) << 3)
#undef mem_ops_wrap_symbol
#define mem_ops_wrap_symbol(fn) mem_ops_wrap_symbol2(fn, MEM_VALUE_T)
#undef mem_ops_wrap_symbol2
#define mem_ops_wrap_symbol2(fn, typ) mem_ops_wrap_symbol3(fn, typ)
#undef mem_ops_wrap_symbol3
#define mem_ops_wrap_symbol3(fn, typ) fn##_as_##typ
/*
* Include aligned access routines
*/
#define INCLUDED_BY_MEM_OPS_H
#include "mem_ops_aligned.h"
#undef INCLUDED_BY_MEM_OPS_H
#undef mem_get_be16
#define mem_get_be16 mem_ops_wrap_symbol(mem_get_be16)
static unsigned MEM_VALUE_T mem_get_be16(const void *vmem) {
unsigned MEM_VALUE_T val;
const MAU_T *mem = (const MAU_T *)vmem;
val = mem[0] << 8;
val |= mem[1];
return val;
}
#undef mem_get_be24
#define mem_get_be24 mem_ops_wrap_symbol(mem_get_be24)
static unsigned MEM_VALUE_T mem_get_be24(const void *vmem) {
unsigned MEM_VALUE_T val;
const MAU_T *mem = (const MAU_T *)vmem;
val = mem[0] << 16;
val |= mem[1] << 8;
val |= mem[2];
return val;
}
#undef mem_get_be32
#define mem_get_be32 mem_ops_wrap_symbol(mem_get_be32)
static unsigned MEM_VALUE_T mem_get_be32(const void *vmem) {
unsigned MEM_VALUE_T val;
const MAU_T *mem = (const MAU_T *)vmem;
val = ((unsigned MEM_VALUE_T)mem[0]) << 24;
val |= mem[1] << 16;
val |= mem[2] << 8;
val |= mem[3];
return val;
}
#undef mem_get_le16
#define mem_get_le16 mem_ops_wrap_symbol(mem_get_le16)
static unsigned MEM_VALUE_T mem_get_le16(const void *vmem) {
unsigned MEM_VALUE_T val;
const MAU_T *mem = (const MAU_T *)vmem;
val = mem[1] << 8;
val |= mem[0];
return val;
}
#undef mem_get_le24
#define mem_get_le24 mem_ops_wrap_symbol(mem_get_le24)
static unsigned MEM_VALUE_T mem_get_le24(const void *vmem) {
unsigned MEM_VALUE_T val;
const MAU_T *mem = (const MAU_T *)vmem;
val = mem[2] << 16;
val |= mem[1] << 8;
val |= mem[0];
return val;
}
#undef mem_get_le32
#define mem_get_le32 mem_ops_wrap_symbol(mem_get_le32)
static unsigned MEM_VALUE_T mem_get_le32(const void *vmem) {
unsigned MEM_VALUE_T val;
const MAU_T *mem = (const MAU_T *)vmem;
val = ((unsigned MEM_VALUE_T)mem[3]) << 24;
val |= mem[2] << 16;
val |= mem[1] << 8;
val |= mem[0];
return val;
}
#define mem_get_s_generic(end, sz) \
static AOM_INLINE signed MEM_VALUE_T mem_get_s##end##sz(const void *vmem) { \
const MAU_T *mem = (const MAU_T *)vmem; \
signed MEM_VALUE_T val = mem_get_##end##sz(mem); \
return (val << (MEM_VALUE_T_SZ_BITS - sz)) >> (MEM_VALUE_T_SZ_BITS - sz); \
}
/* clang-format off */
#undef mem_get_sbe16
#define mem_get_sbe16 mem_ops_wrap_symbol(mem_get_sbe16)
mem_get_s_generic(be, 16)
#undef mem_get_sbe24
#define mem_get_sbe24 mem_ops_wrap_symbol(mem_get_sbe24)
mem_get_s_generic(be, 24)
#undef mem_get_sbe32
#define mem_get_sbe32 mem_ops_wrap_symbol(mem_get_sbe32)
mem_get_s_generic(be, 32)
#undef mem_get_sle16
#define mem_get_sle16 mem_ops_wrap_symbol(mem_get_sle16)
mem_get_s_generic(le, 16)
#undef mem_get_sle24
#define mem_get_sle24 mem_ops_wrap_symbol(mem_get_sle24)
mem_get_s_generic(le, 24)
#undef mem_get_sle32
#define mem_get_sle32 mem_ops_wrap_symbol(mem_get_sle32)
mem_get_s_generic(le, 32)
#undef mem_put_be16
#define mem_put_be16 mem_ops_wrap_symbol(mem_put_be16)
static AOM_INLINE void mem_put_be16(void *vmem, MEM_VALUE_T val) {
MAU_T *mem = (MAU_T *)vmem;
mem[0] = (MAU_T)((val >> 8) & 0xff);
mem[1] = (MAU_T)((val >> 0) & 0xff);
}
#undef mem_put_be24
#define mem_put_be24 mem_ops_wrap_symbol(mem_put_be24)
static AOM_INLINE void mem_put_be24(void *vmem, MEM_VALUE_T val) {
MAU_T *mem = (MAU_T *)vmem;
mem[0] = (MAU_T)((val >> 16) & 0xff);
mem[1] = (MAU_T)((val >> 8) & 0xff);
mem[2] = (MAU_T)((val >> 0) & 0xff);
}
#undef mem_put_be32
#define mem_put_be32 mem_ops_wrap_symbol(mem_put_be32)
static AOM_INLINE void mem_put_be32(void *vmem, MEM_VALUE_T val) {
MAU_T *mem = (MAU_T *)vmem;
mem[0] = (MAU_T)((val >> 24) & 0xff);
mem[1] = (MAU_T)((val >> 16) & 0xff);
mem[2] = (MAU_T)((val >> 8) & 0xff);
mem[3] = (MAU_T)((val >> 0) & 0xff);
}
#undef mem_put_le16
#define mem_put_le16 mem_ops_wrap_symbol(mem_put_le16)
static AOM_INLINE void mem_put_le16(void *vmem, MEM_VALUE_T val) {
MAU_T *mem = (MAU_T *)vmem;
mem[0] = (MAU_T)((val >> 0) & 0xff);
mem[1] = (MAU_T)((val >> 8) & 0xff);
}
#undef mem_put_le24
#define mem_put_le24 mem_ops_wrap_symbol(mem_put_le24)
static AOM_INLINE void mem_put_le24(void *vmem, MEM_VALUE_T val) {
MAU_T *mem = (MAU_T *)vmem;
mem[0] = (MAU_T)((val >> 0) & 0xff);
mem[1] = (MAU_T)((val >> 8) & 0xff);
mem[2] = (MAU_T)((val >> 16) & 0xff);
}
#undef mem_put_le32
#define mem_put_le32 mem_ops_wrap_symbol(mem_put_le32)
static AOM_INLINE void mem_put_le32(void *vmem, MEM_VALUE_T val) {
MAU_T *mem = (MAU_T *)vmem;
mem[0] = (MAU_T)((val >> 0) & 0xff);
mem[1] = (MAU_T)((val >> 8) & 0xff);
mem[2] = (MAU_T)((val >> 16) & 0xff);
mem[3] = (MAU_T)((val >> 24) & 0xff);
}
/* clang-format on */
#endif // AOM_PORTS_MEM_OPS_H_

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/*
* Copyright (c) 2016, Alliance for Open Media. All rights reserved
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file, you can
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
* Media Patent License 1.0 was not distributed with this source code in the
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
#ifndef AOM_PORTS_MEM_OPS_ALIGNED_H_
#define AOM_PORTS_MEM_OPS_ALIGNED_H_
#include "aom/aom_integer.h"
/* \file
* \brief Provides portable memory access primitives for operating on aligned
* data
*
* This file is split from mem_ops.h for easier maintenance. See mem_ops.h
* for a more detailed description of these primitives.
*/
#ifndef INCLUDED_BY_MEM_OPS_H
#error Include mem_ops.h, not mem_ops_aligned.h directly.
#endif
/* Architectures that provide instructions for doing this byte swapping
* could redefine these macros.
*/
#define swap_endian_16(val, raw) \
do { \
val = (uint16_t)(((raw >> 8) & 0x00ff) | ((raw << 8) & 0xff00)); \
} while (0)
#define swap_endian_32(val, raw) \
do { \
val = ((raw >> 24) & 0x000000ff) | ((raw >> 8) & 0x0000ff00) | \
((raw << 8) & 0x00ff0000) | ((raw << 24) & 0xff000000); \
} while (0)
#define swap_endian_16_se(val, raw) \
do { \
swap_endian_16(val, raw); \
val = ((val << 16) >> 16); \
} while (0)
#define swap_endian_32_se(val, raw) swap_endian_32(val, raw)
#define mem_get_ne_aligned_generic(end, sz) \
static AOM_INLINE unsigned MEM_VALUE_T mem_get_##end##sz##_aligned( \
const void *vmem) { \
const uint##sz##_t *mem = (const uint##sz##_t *)vmem; \
return *mem; \
}
#define mem_get_sne_aligned_generic(end, sz) \
static AOM_INLINE signed MEM_VALUE_T mem_get_s##end##sz##_aligned( \
const void *vmem) { \
const int##sz##_t *mem = (const int##sz##_t *)vmem; \
return *mem; \
}
#define mem_get_se_aligned_generic(end, sz) \
static AOM_INLINE unsigned MEM_VALUE_T mem_get_##end##sz##_aligned( \
const void *vmem) { \
const uint##sz##_t *mem = (const uint##sz##_t *)vmem; \
unsigned MEM_VALUE_T val, raw = *mem; \
swap_endian_##sz(val, raw); \
return val; \
}
#define mem_get_sse_aligned_generic(end, sz) \
static AOM_INLINE signed MEM_VALUE_T mem_get_s##end##sz##_aligned( \
const void *vmem) { \
const int##sz##_t *mem = (const int##sz##_t *)vmem; \
unsigned MEM_VALUE_T val, raw = *mem; \
swap_endian_##sz##_se(val, raw); \
return val; \
}
#define mem_put_ne_aligned_generic(end, sz) \
static AOM_INLINE void mem_put_##end##sz##_aligned(void *vmem, \
MEM_VALUE_T val) { \
uint##sz##_t *mem = (uint##sz##_t *)vmem; \
*mem = (uint##sz##_t)val; \
}
#define mem_put_se_aligned_generic(end, sz) \
static AOM_INLINE void mem_put_##end##sz##_aligned(void *vmem, \
MEM_VALUE_T val) { \
uint##sz##_t *mem = (uint##sz##_t *)vmem, raw; \
swap_endian_##sz(raw, val); \
*mem = (uint##sz##_t)raw; \
}
#include "aom_config.h"
#if CONFIG_BIG_ENDIAN
#define mem_get_be_aligned_generic(sz) mem_get_ne_aligned_generic(be, sz)
#define mem_get_sbe_aligned_generic(sz) mem_get_sne_aligned_generic(be, sz)
#define mem_get_le_aligned_generic(sz) mem_get_se_aligned_generic(le, sz)
#define mem_get_sle_aligned_generic(sz) mem_get_sse_aligned_generic(le, sz)
#define mem_put_be_aligned_generic(sz) mem_put_ne_aligned_generic(be, sz)
#define mem_put_le_aligned_generic(sz) mem_put_se_aligned_generic(le, sz)
#else
#define mem_get_be_aligned_generic(sz) mem_get_se_aligned_generic(be, sz)
#define mem_get_sbe_aligned_generic(sz) mem_get_sse_aligned_generic(be, sz)
#define mem_get_le_aligned_generic(sz) mem_get_ne_aligned_generic(le, sz)
#define mem_get_sle_aligned_generic(sz) mem_get_sne_aligned_generic(le, sz)
#define mem_put_be_aligned_generic(sz) mem_put_se_aligned_generic(be, sz)
#define mem_put_le_aligned_generic(sz) mem_put_ne_aligned_generic(le, sz)
#endif
/* clang-format off */
#undef mem_get_be16_aligned
#define mem_get_be16_aligned mem_ops_wrap_symbol(mem_get_be16_aligned)
mem_get_be_aligned_generic(16)
#undef mem_get_be32_aligned
#define mem_get_be32_aligned mem_ops_wrap_symbol(mem_get_be32_aligned)
mem_get_be_aligned_generic(32)
#undef mem_get_le16_aligned
#define mem_get_le16_aligned mem_ops_wrap_symbol(mem_get_le16_aligned)
mem_get_le_aligned_generic(16)
#undef mem_get_le32_aligned
#define mem_get_le32_aligned mem_ops_wrap_symbol(mem_get_le32_aligned)
mem_get_le_aligned_generic(32)
#undef mem_get_sbe16_aligned
#define mem_get_sbe16_aligned mem_ops_wrap_symbol(mem_get_sbe16_aligned)
mem_get_sbe_aligned_generic(16)
#undef mem_get_sbe32_aligned
#define mem_get_sbe32_aligned mem_ops_wrap_symbol(mem_get_sbe32_aligned)
mem_get_sbe_aligned_generic(32)
#undef mem_get_sle16_aligned
#define mem_get_sle16_aligned mem_ops_wrap_symbol(mem_get_sle16_aligned)
mem_get_sle_aligned_generic(16)
#undef mem_get_sle32_aligned
#define mem_get_sle32_aligned mem_ops_wrap_symbol(mem_get_sle32_aligned)
mem_get_sle_aligned_generic(32)
#undef mem_put_be16_aligned
#define mem_put_be16_aligned mem_ops_wrap_symbol(mem_put_be16_aligned)
mem_put_be_aligned_generic(16)
#undef mem_put_be32_aligned
#define mem_put_be32_aligned mem_ops_wrap_symbol(mem_put_be32_aligned)
mem_put_be_aligned_generic(32)
#undef mem_put_le16_aligned
#define mem_put_le16_aligned mem_ops_wrap_symbol(mem_put_le16_aligned)
mem_put_le_aligned_generic(16)
#undef mem_put_le32_aligned
#define mem_put_le32_aligned mem_ops_wrap_symbol(mem_put_le32_aligned)
mem_put_le_aligned_generic(32)
#undef mem_get_ne_aligned_generic
#undef mem_get_se_aligned_generic
#undef mem_get_sne_aligned_generic
#undef mem_get_sse_aligned_generic
#undef mem_put_ne_aligned_generic
#undef mem_put_se_aligned_generic
#undef swap_endian_16
#undef swap_endian_32
#undef swap_endian_16_se
#undef swap_endian_32_se
/* clang-format on */
#endif // AOM_PORTS_MEM_OPS_ALIGNED_H_

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/*
* Copyright (c) 2016, Alliance for Open Media. All rights reserved
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file, you can
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
* Media Patent License 1.0 was not distributed with this source code in the
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
#ifndef AOM_PORTS_MSVC_H_
#define AOM_PORTS_MSVC_H_
#ifdef _MSC_VER
#include "./aom_config.h"
#if _MSC_VER < 1900 // VS2015 provides snprintf
#define snprintf _snprintf
#endif // _MSC_VER < 1900
#if _MSC_VER < 1800 // VS2013 provides round
#include <math.h>
static INLINE double round(double x) {
if (x < 0)
return ceil(x - 0.5);
else
return floor(x + 0.5);
}
static INLINE float roundf(float x) {
if (x < 0)
return (float)ceil(x - 0.5f);
else
return (float)floor(x + 0.5f);
}
static INLINE long lroundf(float x) {
if (x < 0)
return (long)(x - 0.5f);
else
return (long)(x + 0.5f);
}
#endif // _MSC_VER < 1800
#endif // _MSC_VER
#endif // AOM_PORTS_MSVC_H_

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/*
* Copyright (c) 2016, Alliance for Open Media. All rights reserved
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file, you can
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
* Media Patent License 1.0 was not distributed with this source code in the
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
#ifndef AOM_PORTS_SYSTEM_STATE_H_
#define AOM_PORTS_SYSTEM_STATE_H_
#include "./aom_config.h"
#if ARCH_X86 || ARCH_X86_64
void aom_reset_mmx_state(void);
#define aom_clear_system_state() aom_reset_mmx_state()
#else
#define aom_clear_system_state()
#endif // ARCH_X86 || ARCH_X86_64
#endif // AOM_PORTS_SYSTEM_STATE_H_

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/*
* Copyright (c) 2016, Alliance for Open Media. All rights reserved
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file, you can
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
* Media Patent License 1.0 was not distributed with this source code in the
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
#ifndef AOM_PORTS_X86_H_
#define AOM_PORTS_X86_H_
#include <stdlib.h>
#if defined(_MSC_VER)
#include <intrin.h> /* For __cpuidex, __rdtsc */
#endif
#include "aom_config.h"
#include "aom/aom_integer.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef enum {
AOM_CPU_UNKNOWN = -1,
AOM_CPU_AMD,
AOM_CPU_AMD_OLD,
AOM_CPU_CENTAUR,
AOM_CPU_CYRIX,
AOM_CPU_INTEL,
AOM_CPU_NEXGEN,
AOM_CPU_NSC,
AOM_CPU_RISE,
AOM_CPU_SIS,
AOM_CPU_TRANSMETA,
AOM_CPU_TRANSMETA_OLD,
AOM_CPU_UMC,
AOM_CPU_VIA,
AOM_CPU_LAST
} aom_cpu_t;
#if defined(__GNUC__) && __GNUC__ || defined(__ANDROID__)
#if ARCH_X86_64
#define cpuid(func, func2, ax, bx, cx, dx) \
__asm__ __volatile__("cpuid \n\t" \
: "=a"(ax), "=b"(bx), "=c"(cx), "=d"(dx) \
: "a"(func), "c"(func2));
#else
#define cpuid(func, func2, ax, bx, cx, dx) \
__asm__ __volatile__( \
"mov %%ebx, %%edi \n\t" \
"cpuid \n\t" \
"xchg %%edi, %%ebx \n\t" \
: "=a"(ax), "=D"(bx), "=c"(cx), "=d"(dx) \
: "a"(func), "c"(func2));
#endif
#elif defined(__SUNPRO_C) || \
defined(__SUNPRO_CC) /* end __GNUC__ or __ANDROID__*/
#if ARCH_X86_64
#define cpuid(func, func2, ax, bx, cx, dx) \
asm volatile( \
"xchg %rsi, %rbx \n\t" \
"cpuid \n\t" \
"movl %ebx, %edi \n\t" \
"xchg %rsi, %rbx \n\t" \
: "=a"(ax), "=D"(bx), "=c"(cx), "=d"(dx) \
: "a"(func), "c"(func2));
#else
#define cpuid(func, func2, ax, bx, cx, dx) \
asm volatile( \
"pushl %ebx \n\t" \
"cpuid \n\t" \
"movl %ebx, %edi \n\t" \
"popl %ebx \n\t" \
: "=a"(ax), "=D"(bx), "=c"(cx), "=d"(dx) \
: "a"(func), "c"(func2));
#endif
#else /* end __SUNPRO__ */
#if ARCH_X86_64
#if defined(_MSC_VER) && _MSC_VER > 1500
#define cpuid(func, func2, a, b, c, d) \
do { \
int regs[4]; \
__cpuidex(regs, func, func2); \
a = regs[0]; \
b = regs[1]; \
c = regs[2]; \
d = regs[3]; \
} while (0)
#else
#define cpuid(func, func2, a, b, c, d) \
do { \
int regs[4]; \
__cpuid(regs, func); \
a = regs[0]; \
b = regs[1]; \
c = regs[2]; \
d = regs[3]; \
} while (0)
#endif
#else
/* clang-format off */
#define cpuid(func, func2, a, b, c, d) \
__asm mov eax, func \
__asm mov ecx, func2 \
__asm cpuid \
__asm mov a, eax \
__asm mov b, ebx \
__asm mov c, ecx \
__asm mov d, edx
#endif
/* clang-format on */
#endif /* end others */
// NaCl has no support for xgetbv or the raw opcode.
#if !defined(__native_client__) && (defined(__i386__) || defined(__x86_64__))
static INLINE uint64_t xgetbv(void) {
const uint32_t ecx = 0;
uint32_t eax, edx;
// Use the raw opcode for xgetbv for compatibility with older toolchains.
__asm__ volatile(".byte 0x0f, 0x01, 0xd0\n"
: "=a"(eax), "=d"(edx)
: "c"(ecx));
return ((uint64_t)edx << 32) | eax;
}
#elif (defined(_M_X64) || defined(_M_IX86)) && defined(_MSC_FULL_VER) && \
_MSC_FULL_VER >= 160040219 // >= VS2010 SP1
#include <immintrin.h>
#define xgetbv() _xgetbv(0)
#elif defined(_MSC_VER) && defined(_M_IX86)
static INLINE uint64_t xgetbv(void) {
uint32_t eax_, edx_;
__asm {
xor ecx, ecx // ecx = 0
// Use the raw opcode for xgetbv for compatibility with older toolchains.
__asm _emit 0x0f __asm _emit 0x01 __asm _emit 0xd0
mov eax_, eax
mov edx_, edx
}
return ((uint64_t)edx_ << 32) | eax_;
}
#else
#define xgetbv() 0U // no AVX for older x64 or unrecognized toolchains.
#endif
#if defined(_MSC_VER) && _MSC_VER >= 1700
#include <windows.h>
#if WINAPI_FAMILY_PARTITION(WINAPI_FAMILY_APP)
#define getenv(x) NULL
#endif
#endif
#define HAS_MMX 0x01
#define HAS_SSE 0x02
#define HAS_SSE2 0x04
#define HAS_SSE3 0x08
#define HAS_SSSE3 0x10
#define HAS_SSE4_1 0x20
#define HAS_AVX 0x40
#define HAS_AVX2 0x80
#ifndef BIT
#define BIT(n) (1 << n)
#endif
static INLINE int x86_simd_caps(void) {
unsigned int flags = 0;
unsigned int mask = ~0;
unsigned int max_cpuid_val, reg_eax, reg_ebx, reg_ecx, reg_edx;
char *env;
(void)reg_ebx;
/* See if the CPU capabilities are being overridden by the environment */
env = getenv("AOM_SIMD_CAPS");
if (env && *env) return (int)strtol(env, NULL, 0);
env = getenv("AOM_SIMD_CAPS_MASK");
if (env && *env) mask = (unsigned int)strtoul(env, NULL, 0);
/* Ensure that the CPUID instruction supports extended features */
cpuid(0, 0, max_cpuid_val, reg_ebx, reg_ecx, reg_edx);
if (max_cpuid_val < 1) return 0;
/* Get the standard feature flags */
cpuid(1, 0, reg_eax, reg_ebx, reg_ecx, reg_edx);
if (reg_edx & BIT(23)) flags |= HAS_MMX;
if (reg_edx & BIT(25)) flags |= HAS_SSE; /* aka xmm */
if (reg_edx & BIT(26)) flags |= HAS_SSE2; /* aka wmt */
if (reg_ecx & BIT(0)) flags |= HAS_SSE3;
if (reg_ecx & BIT(9)) flags |= HAS_SSSE3;
if (reg_ecx & BIT(19)) flags |= HAS_SSE4_1;
// bits 27 (OSXSAVE) & 28 (256-bit AVX)
if ((reg_ecx & (BIT(27) | BIT(28))) == (BIT(27) | BIT(28))) {
if ((xgetbv() & 0x6) == 0x6) {
flags |= HAS_AVX;
if (max_cpuid_val >= 7) {
/* Get the leaf 7 feature flags. Needed to check for AVX2 support */
cpuid(7, 0, reg_eax, reg_ebx, reg_ecx, reg_edx);
if (reg_ebx & BIT(5)) flags |= HAS_AVX2;
}
}
}
return flags & mask;
}
// Note:
// 32-bit CPU cycle counter is light-weighted for most function performance
// measurement. For large function (CPU time > a couple of seconds), 64-bit
// counter should be used.
// 32-bit CPU cycle counter
static INLINE unsigned int x86_readtsc(void) {
#if defined(__GNUC__) && __GNUC__
unsigned int tsc;
__asm__ __volatile__("rdtsc\n\t" : "=a"(tsc) :);
return tsc;
#elif defined(__SUNPRO_C) || defined(__SUNPRO_CC)
unsigned int tsc;
asm volatile("rdtsc\n\t" : "=a"(tsc) :);
return tsc;
#else
#if ARCH_X86_64
return (unsigned int)__rdtsc();
#else
__asm rdtsc;
#endif
#endif
}
// 64-bit CPU cycle counter
static INLINE uint64_t x86_readtsc64(void) {
#if defined(__GNUC__) && __GNUC__
uint32_t hi, lo;
__asm__ __volatile__("rdtsc" : "=a"(lo), "=d"(hi));
return ((uint64_t)hi << 32) | lo;
#elif defined(__SUNPRO_C) || defined(__SUNPRO_CC)
uint_t hi, lo;
asm volatile("rdtsc\n\t" : "=a"(lo), "=d"(hi));
return ((uint64_t)hi << 32) | lo;
#else
#if ARCH_X86_64
return (uint64_t)__rdtsc();
#else
__asm rdtsc;
#endif
#endif
}
#if defined(__GNUC__) && __GNUC__
#define x86_pause_hint() __asm__ __volatile__("pause \n\t")
#elif defined(__SUNPRO_C) || defined(__SUNPRO_CC)
#define x86_pause_hint() asm volatile("pause \n\t")
#else
#if ARCH_X86_64
#define x86_pause_hint() _mm_pause();
#else
#define x86_pause_hint() __asm pause
#endif
#endif
#if defined(__GNUC__) && __GNUC__
static void x87_set_control_word(unsigned short mode) {
__asm__ __volatile__("fldcw %0" : : "m"(*&mode));
}
static unsigned short x87_get_control_word(void) {
unsigned short mode;
__asm__ __volatile__("fstcw %0\n\t" : "=m"(*&mode) :);
return mode;
}
#elif defined(__SUNPRO_C) || defined(__SUNPRO_CC)
static void x87_set_control_word(unsigned short mode) {
asm volatile("fldcw %0" : : "m"(*&mode));
}
static unsigned short x87_get_control_word(void) {
unsigned short mode;
asm volatile("fstcw %0\n\t" : "=m"(*&mode) :);
return mode;
}
#elif ARCH_X86_64
/* No fldcw intrinsics on Windows x64, punt to external asm */
extern void aom_winx64_fldcw(unsigned short mode);
extern unsigned short aom_winx64_fstcw(void);
#define x87_set_control_word aom_winx64_fldcw
#define x87_get_control_word aom_winx64_fstcw
#else
static void x87_set_control_word(unsigned short mode) {
__asm { fldcw mode }
}
static unsigned short x87_get_control_word(void) {
unsigned short mode;
__asm { fstcw mode }
return mode;
}
#endif
static INLINE unsigned int x87_set_double_precision(void) {
unsigned int mode = x87_get_control_word();
x87_set_control_word((mode & ~0x300) | 0x200);
return mode;
}
extern void aom_reset_mmx_state(void);
#ifdef __cplusplus
} // extern "C"
#endif
#endif // AOM_PORTS_X86_H_

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third_party/aom/aom_ports/x86_abi_support.asm vendored Normal file
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@ -0,0 +1,395 @@
;
; Copyright (c) 2016, Alliance for Open Media. All rights reserved
;
; This source code is subject to the terms of the BSD 2 Clause License and
; the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
; was not distributed with this source code in the LICENSE file, you can
; obtain it at www.aomedia.org/license/software. If the Alliance for Open
; Media Patent License 1.0 was not distributed with this source code in the
; PATENTS file, you can obtain it at www.aomedia.org/license/patent.
;
;
%include "aom_config.asm"
; 32/64 bit compatibility macros
;
; In general, we make the source use 64 bit syntax, then twiddle with it using
; the preprocessor to get the 32 bit syntax on 32 bit platforms.
;
%ifidn __OUTPUT_FORMAT__,elf32
%define ABI_IS_32BIT 1
%elifidn __OUTPUT_FORMAT__,macho32
%define ABI_IS_32BIT 1
%elifidn __OUTPUT_FORMAT__,win32
%define ABI_IS_32BIT 1
%elifidn __OUTPUT_FORMAT__,aout
%define ABI_IS_32BIT 1
%else
%define ABI_IS_32BIT 0
%endif
%if ABI_IS_32BIT
%define rax eax
%define rbx ebx
%define rcx ecx
%define rdx edx
%define rsi esi
%define rdi edi
%define rsp esp
%define rbp ebp
%define movsxd mov
%macro movq 2
%ifidn %1,eax
movd %1,%2
%elifidn %2,eax
movd %1,%2
%elifidn %1,ebx
movd %1,%2
%elifidn %2,ebx
movd %1,%2
%elifidn %1,ecx
movd %1,%2
%elifidn %2,ecx
movd %1,%2
%elifidn %1,edx
movd %1,%2
%elifidn %2,edx
movd %1,%2
%elifidn %1,esi
movd %1,%2
%elifidn %2,esi
movd %1,%2
%elifidn %1,edi
movd %1,%2
%elifidn %2,edi
movd %1,%2
%elifidn %1,esp
movd %1,%2
%elifidn %2,esp
movd %1,%2
%elifidn %1,ebp
movd %1,%2
%elifidn %2,ebp
movd %1,%2
%else
movq %1,%2
%endif
%endmacro
%endif
; LIBAOM_YASM_WIN64
; Set LIBAOM_YASM_WIN64 if output is Windows 64bit so the code will work if x64
; or win64 is defined on the Yasm command line.
%ifidn __OUTPUT_FORMAT__,win64
%define LIBAOM_YASM_WIN64 1
%elifidn __OUTPUT_FORMAT__,x64
%define LIBAOM_YASM_WIN64 1
%else
%define LIBAOM_YASM_WIN64 0
%endif
; sym()
; Return the proper symbol name for the target ABI.
;
; Certain ABIs, notably MS COFF and Darwin MACH-O, require that symbols
; with C linkage be prefixed with an underscore.
;
%ifidn __OUTPUT_FORMAT__,elf32
%define sym(x) x
%elifidn __OUTPUT_FORMAT__,elf64
%define sym(x) x
%elifidn __OUTPUT_FORMAT__,elfx32
%define sym(x) x
%elif LIBAOM_YASM_WIN64
%define sym(x) x
%else
%define sym(x) _ %+ x
%endif
; PRIVATE
; Macro for the attribute to hide a global symbol for the target ABI.
; This is only active if CHROMIUM is defined.
;
; Chromium doesn't like exported global symbols due to symbol clashing with
; plugins among other things.
;
; Requires Chromium's patched copy of yasm:
; http://src.chromium.org/viewvc/chrome?view=rev&revision=73761
; http://www.tortall.net/projects/yasm/ticket/236
;
%ifdef CHROMIUM
%ifidn __OUTPUT_FORMAT__,elf32
%define PRIVATE :hidden
%elifidn __OUTPUT_FORMAT__,elf64
%define PRIVATE :hidden
%elifidn __OUTPUT_FORMAT__,elfx32
%define PRIVATE :hidden
%elif LIBAOM_YASM_WIN64
%define PRIVATE
%else
%define PRIVATE :private_extern
%endif
%else
%define PRIVATE
%endif
; arg()
; Return the address specification of the given argument
;
%if ABI_IS_32BIT
%define arg(x) [ebp+8+4*x]
%else
; 64 bit ABI passes arguments in registers. This is a workaround to get up
; and running quickly. Relies on SHADOW_ARGS_TO_STACK
%if LIBAOM_YASM_WIN64
%define arg(x) [rbp+16+8*x]
%else
%define arg(x) [rbp-8-8*x]
%endif
%endif
; REG_SZ_BYTES, REG_SZ_BITS
; Size of a register
%if ABI_IS_32BIT
%define REG_SZ_BYTES 4
%define REG_SZ_BITS 32
%else
%define REG_SZ_BYTES 8
%define REG_SZ_BITS 64
%endif
; ALIGN_STACK <alignment> <register>
; This macro aligns the stack to the given alignment (in bytes). The stack
; is left such that the previous value of the stack pointer is the first
; argument on the stack (ie, the inverse of this macro is 'pop rsp.')
; This macro uses one temporary register, which is not preserved, and thus
; must be specified as an argument.
%macro ALIGN_STACK 2
mov %2, rsp
and rsp, -%1
lea rsp, [rsp - (%1 - REG_SZ_BYTES)]
push %2
%endmacro
;
; The Microsoft assembler tries to impose a certain amount of type safety in
; its register usage. YASM doesn't recognize these directives, so we just
; %define them away to maintain as much compatibility as possible with the
; original inline assembler we're porting from.
;
%idefine PTR
%idefine XMMWORD
%idefine MMWORD
; PIC macros
;
%if ABI_IS_32BIT
%if CONFIG_PIC=1
%ifidn __OUTPUT_FORMAT__,elf32
%define WRT_PLT wrt ..plt
%macro GET_GOT 1
extern _GLOBAL_OFFSET_TABLE_
push %1
call %%get_got
%%sub_offset:
jmp %%exitGG
%%get_got:
mov %1, [esp]
add %1, _GLOBAL_OFFSET_TABLE_ + $$ - %%sub_offset wrt ..gotpc
ret
%%exitGG:
%undef GLOBAL
%define GLOBAL(x) x + %1 wrt ..gotoff
%undef RESTORE_GOT
%define RESTORE_GOT pop %1
%endmacro
%elifidn __OUTPUT_FORMAT__,macho32
%macro GET_GOT 1
push %1
call %%get_got
%%get_got:
pop %1
%undef GLOBAL
%define GLOBAL(x) x + %1 - %%get_got
%undef RESTORE_GOT
%define RESTORE_GOT pop %1
%endmacro
%endif
%endif
%ifdef CHROMIUM
%ifidn __OUTPUT_FORMAT__,macho32
%define HIDDEN_DATA(x) x:private_extern
%else
%define HIDDEN_DATA(x) x
%endif
%else
%define HIDDEN_DATA(x) x
%endif
%else
%macro GET_GOT 1
%endmacro
%define GLOBAL(x) rel x
%ifidn __OUTPUT_FORMAT__,elf64
%define WRT_PLT wrt ..plt
%define HIDDEN_DATA(x) x:data hidden
%elifidn __OUTPUT_FORMAT__,elfx32
%define WRT_PLT wrt ..plt
%define HIDDEN_DATA(x) x:data hidden
%elifidn __OUTPUT_FORMAT__,macho64
%ifdef CHROMIUM
%define HIDDEN_DATA(x) x:private_extern
%else
%define HIDDEN_DATA(x) x
%endif
%else
%define HIDDEN_DATA(x) x
%endif
%endif
%ifnmacro GET_GOT
%macro GET_GOT 1
%endmacro
%define GLOBAL(x) x
%endif
%ifndef RESTORE_GOT
%define RESTORE_GOT
%endif
%ifndef WRT_PLT
%define WRT_PLT
%endif
%if ABI_IS_32BIT
%macro SHADOW_ARGS_TO_STACK 1
%endm
%define UNSHADOW_ARGS
%else
%if LIBAOM_YASM_WIN64
%macro SHADOW_ARGS_TO_STACK 1 ; argc
%if %1 > 0
mov arg(0),rcx
%endif
%if %1 > 1
mov arg(1),rdx
%endif
%if %1 > 2
mov arg(2),r8
%endif
%if %1 > 3
mov arg(3),r9
%endif
%endm
%else
%macro SHADOW_ARGS_TO_STACK 1 ; argc
%if %1 > 0
push rdi
%endif
%if %1 > 1
push rsi
%endif
%if %1 > 2
push rdx
%endif
%if %1 > 3
push rcx
%endif
%if %1 > 4
push r8
%endif
%if %1 > 5
push r9
%endif
%if %1 > 6
%assign i %1-6
%assign off 16
%rep i
mov rax,[rbp+off]
push rax
%assign off off+8
%endrep
%endif
%endm
%endif
%define UNSHADOW_ARGS mov rsp, rbp
%endif
; Win64 ABI requires that XMM6:XMM15 are callee saved
; SAVE_XMM n, [u]
; store registers 6-n on the stack
; if u is specified, use unaligned movs.
; Win64 ABI requires 16 byte stack alignment, but then pushes an 8 byte return
; value. Typically we follow this up with 'push rbp' - re-aligning the stack -
; but in some cases this is not done and unaligned movs must be used.
%if LIBAOM_YASM_WIN64
%macro SAVE_XMM 1-2 a
%if %1 < 6
%error Only xmm registers 6-15 must be preserved
%else
%assign last_xmm %1
%define movxmm movdq %+ %2
%assign xmm_stack_space ((last_xmm - 5) * 16)
sub rsp, xmm_stack_space
%assign i 6
%rep (last_xmm - 5)
movxmm [rsp + ((i - 6) * 16)], xmm %+ i
%assign i i+1
%endrep
%endif
%endmacro
%macro RESTORE_XMM 0
%ifndef last_xmm
%error RESTORE_XMM must be paired with SAVE_XMM n
%else
%assign i last_xmm
%rep (last_xmm - 5)
movxmm xmm %+ i, [rsp +((i - 6) * 16)]
%assign i i-1
%endrep
add rsp, xmm_stack_space
; there are a couple functions which return from multiple places.
; otherwise, we could uncomment these:
; %undef last_xmm
; %undef xmm_stack_space
; %undef movxmm
%endif
%endmacro
%else
%macro SAVE_XMM 1-2
%endmacro
%macro RESTORE_XMM 0
%endmacro
%endif
; Name of the rodata section
;
; .rodata seems to be an elf-ism, as it doesn't work on OSX.
;
%ifidn __OUTPUT_FORMAT__,macho64
%define SECTION_RODATA section .text
%elifidn __OUTPUT_FORMAT__,macho32
%macro SECTION_RODATA 0
section .text
%endmacro
%elifidn __OUTPUT_FORMAT__,aout
%define SECTION_RODATA section .data
%else
%define SECTION_RODATA section .rodata
%endif
; Tell GNU ld that we don't require an executable stack.
%ifidn __OUTPUT_FORMAT__,elf32
section .note.GNU-stack noalloc noexec nowrite progbits
section .text
%elifidn __OUTPUT_FORMAT__,elf64
section .note.GNU-stack noalloc noexec nowrite progbits
section .text
%elifidn __OUTPUT_FORMAT__,elfx32
section .note.GNU-stack noalloc noexec nowrite progbits
section .text
%endif