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diff --git a/libs/cairo-1.16.0/src/cairo-atomic-private.h b/libs/cairo-1.16.0/src/cairo-atomic-private.h
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--- a/libs/cairo-1.16.0/src/cairo-atomic-private.h
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@@ -1,424 +0,0 @@
-/* cairo - a vector graphics library with display and print output
- *
- * Copyright © 2007 Chris Wilson
- * Copyright © 2010 Andrea Canciani
- *
- * This library is free software; you can redistribute it and/or
- * modify it either under the terms of the GNU Lesser General Public
- * License version 2.1 as published by the Free Software Foundation
- * (the "LGPL") or, at your option, under the terms of the Mozilla
- * Public License Version 1.1 (the "MPL"). If you do not alter this
- * notice, a recipient may use your version of this file under either
- * the MPL or the LGPL.
- *
- * You should have received a copy of the LGPL along with this library
- * in the file COPYING-LGPL-2.1; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA
- * You should have received a copy of the MPL along with this library
- * in the file COPYING-MPL-1.1
- *
- * The contents of this file are subject to the Mozilla Public License
- * Version 1.1 (the "License"); you may not use this file except in
- * compliance with the License. You may obtain a copy of the License at
- * http://www.mozilla.org/MPL/
- *
- * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
- * OF ANY KIND, either express or implied. See the LGPL or the MPL for
- * the specific language governing rights and limitations.
- *
- * The Original Code is the cairo graphics library.
- *
- * The Initial Developer of the Original Code is University of Southern
- * California.
- *
- * Contributor(s):
- * Chris Wilson <chris@chris-wilson.co.uk>
- * Andrea Canciani <ranma42@gmail.com>
- */
-
-#ifndef CAIRO_ATOMIC_PRIVATE_H
-#define CAIRO_ATOMIC_PRIVATE_H
-
-# include "cairo-compiler-private.h"
-
-#if HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <assert.h>
-
-/* The autoconf on OpenBSD 4.5 produces the malformed constant name
- * SIZEOF_VOID__ rather than SIZEOF_VOID_P. Work around that here. */
-#if !defined(SIZEOF_VOID_P) && defined(SIZEOF_VOID__)
-# define SIZEOF_VOID_P SIZEOF_VOID__
-#endif
-
-CAIRO_BEGIN_DECLS
-
-/* C++11 atomic primitives were designed to be more flexible than the
- * __sync_* family of primitives. Despite the name, they are available
- * in C as well as C++. The motivating reason for using them is that
- * for _cairo_atomic_{int,ptr}_get, the compiler is able to see that
- * the load is intended to be atomic, as opposed to the __sync_*
- * version, below, where the load looks like a plain load. Having
- * the load appear atomic to the compiler is particular important for
- * tools like ThreadSanitizer so they don't report false positives on
- * memory operations that we intend to be atomic.
- */
-#if HAVE_CXX11_ATOMIC_PRIMITIVES
-
-#define HAS_ATOMIC_OPS 1
-
-typedef int cairo_atomic_int_t;
-
-static cairo_always_inline cairo_atomic_int_t
-_cairo_atomic_int_get (cairo_atomic_int_t *x)
-{
- return __atomic_load_n(x, __ATOMIC_SEQ_CST);
-}
-
-static cairo_always_inline cairo_atomic_int_t
-_cairo_atomic_int_get_relaxed (cairo_atomic_int_t *x)
-{
- return __atomic_load_n(x, __ATOMIC_RELAXED);
-}
-
-static cairo_always_inline void
-_cairo_atomic_int_set_relaxed (cairo_atomic_int_t *x, cairo_atomic_int_t val)
-{
- __atomic_store_n(x, val, __ATOMIC_RELAXED);
-}
-
-static cairo_always_inline void *
-_cairo_atomic_ptr_get (void **x)
-{
- return __atomic_load_n(x, __ATOMIC_SEQ_CST);
-}
-
-# define _cairo_atomic_int_inc(x) ((void) __atomic_fetch_add(x, 1, __ATOMIC_SEQ_CST))
-# define _cairo_atomic_int_dec(x) ((void) __atomic_fetch_sub(x, 1, __ATOMIC_SEQ_CST))
-# define _cairo_atomic_int_dec_and_test(x) (__atomic_fetch_sub(x, 1, __ATOMIC_SEQ_CST) == 1)
-
-#if SIZEOF_VOID_P==SIZEOF_INT
-typedef int cairo_atomic_intptr_t;
-#elif SIZEOF_VOID_P==SIZEOF_LONG
-typedef long cairo_atomic_intptr_t;
-#elif SIZEOF_VOID_P==SIZEOF_LONG_LONG
-typedef long long cairo_atomic_intptr_t;
-#else
-#error No matching integer pointer type
-#endif
-
-static cairo_always_inline cairo_bool_t
-_cairo_atomic_int_cmpxchg_impl(cairo_atomic_int_t *x,
- cairo_atomic_int_t oldv,
- cairo_atomic_int_t newv)
-{
- cairo_atomic_int_t expected = oldv;
- return __atomic_compare_exchange_n(x, &expected, newv, 0, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST);
-}
-
-#define _cairo_atomic_int_cmpxchg(x, oldv, newv) \
- _cairo_atomic_int_cmpxchg_impl(x, oldv, newv)
-
-static cairo_always_inline cairo_atomic_int_t
-_cairo_atomic_int_cmpxchg_return_old_impl(cairo_atomic_int_t *x,
- cairo_atomic_int_t oldv,
- cairo_atomic_int_t newv)
-{
- cairo_atomic_int_t expected = oldv;
- (void) __atomic_compare_exchange_n(x, &expected, newv, 0, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST);
- return expected;
-}
-
-#define _cairo_atomic_int_cmpxchg_return_old(x, oldv, newv) \
- _cairo_atomic_int_cmpxchg_return_old_impl(x, oldv, newv)
-
-static cairo_always_inline cairo_bool_t
-_cairo_atomic_ptr_cmpxchg_impl(void **x, void *oldv, void *newv)
-{
- void *expected = oldv;
- return __atomic_compare_exchange_n(x, &expected, newv, 0, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST);
-}
-
-#define _cairo_atomic_ptr_cmpxchg(x, oldv, newv) \
- _cairo_atomic_ptr_cmpxchg_impl(x, oldv, newv)
-
-static cairo_always_inline void *
-_cairo_atomic_ptr_cmpxchg_return_old_impl(void **x, void *oldv, void *newv)
-{
- void *expected = oldv;
- (void) __atomic_compare_exchange_n(x, &expected, newv, 0, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST);
- return expected;
-}
-
-#define _cairo_atomic_ptr_cmpxchg_return_old(x, oldv, newv) \
- _cairo_atomic_ptr_cmpxchg_return_old_impl(x, oldv, newv)
-
-#endif
-
-#if HAVE_GCC_LEGACY_ATOMICS
-
-#define HAS_ATOMIC_OPS 1
-
-typedef int cairo_atomic_int_t;
-
-static cairo_always_inline cairo_atomic_int_t
-_cairo_atomic_int_get (cairo_atomic_int_t *x)
-{
- __sync_synchronize ();
- return *x;
-}
-
-static cairo_always_inline cairo_atomic_int_t
-_cairo_atomic_int_get_relaxed (cairo_atomic_int_t *x)
-{
- return *x;
-}
-
-static cairo_always_inline void
-_cairo_atomic_int_set_relaxed (cairo_atomic_int_t *x, cairo_atomic_int_t val)
-{
- *x = val;
-}
-
-static cairo_always_inline void *
-_cairo_atomic_ptr_get (void **x)
-{
- __sync_synchronize ();
- return *x;
-}
-
-# define _cairo_atomic_int_inc(x) ((void) __sync_fetch_and_add(x, 1))
-# define _cairo_atomic_int_dec(x) ((void) __sync_fetch_and_add(x, -1))
-# define _cairo_atomic_int_dec_and_test(x) (__sync_fetch_and_add(x, -1) == 1)
-# define _cairo_atomic_int_cmpxchg(x, oldv, newv) __sync_bool_compare_and_swap (x, oldv, newv)
-# define _cairo_atomic_int_cmpxchg_return_old(x, oldv, newv) __sync_val_compare_and_swap (x, oldv, newv)
-
-#if SIZEOF_VOID_P==SIZEOF_INT
-typedef int cairo_atomic_intptr_t;
-#elif SIZEOF_VOID_P==SIZEOF_LONG
-typedef long cairo_atomic_intptr_t;
-#elif SIZEOF_VOID_P==SIZEOF_LONG_LONG
-typedef long long cairo_atomic_intptr_t;
-#else
-#error No matching integer pointer type
-#endif
-
-# define _cairo_atomic_ptr_cmpxchg(x, oldv, newv) \
- __sync_bool_compare_and_swap ((cairo_atomic_intptr_t*)x, (cairo_atomic_intptr_t)oldv, (cairo_atomic_intptr_t)newv)
-
-# define _cairo_atomic_ptr_cmpxchg_return_old(x, oldv, newv) \
- _cairo_atomic_intptr_to_voidptr (__sync_val_compare_and_swap ((cairo_atomic_intptr_t*)x, (cairo_atomic_intptr_t)oldv, (cairo_atomic_intptr_t)newv))
-
-#endif
-
-#if HAVE_LIB_ATOMIC_OPS
-#include <atomic_ops.h>
-
-#define HAS_ATOMIC_OPS 1
-
-typedef AO_t cairo_atomic_int_t;
-
-# define _cairo_atomic_int_get(x) (AO_load_full (x))
-# define _cairo_atomic_int_get_relaxed(x) (AO_load_full (x))
-# define _cairo_atomic_int_set_relaxed(x, val) (AO_store_full ((x), (val)))
-
-# define _cairo_atomic_int_inc(x) ((void) AO_fetch_and_add1_full(x))
-# define _cairo_atomic_int_dec(x) ((void) AO_fetch_and_sub1_full(x))
-# define _cairo_atomic_int_dec_and_test(x) (AO_fetch_and_sub1_full(x) == 1)
-# define _cairo_atomic_int_cmpxchg(x, oldv, newv) AO_compare_and_swap_full(x, oldv, newv)
-
-#if SIZEOF_VOID_P==SIZEOF_INT
-typedef unsigned int cairo_atomic_intptr_t;
-#elif SIZEOF_VOID_P==SIZEOF_LONG
-typedef unsigned long cairo_atomic_intptr_t;
-#elif SIZEOF_VOID_P==SIZEOF_LONG_LONG
-typedef unsigned long long cairo_atomic_intptr_t;
-#else
-#error No matching integer pointer type
-#endif
-
-# define _cairo_atomic_ptr_get(x) _cairo_atomic_intptr_to_voidptr (AO_load_full (x))
-# define _cairo_atomic_ptr_cmpxchg(x, oldv, newv) \
- _cairo_atomic_int_cmpxchg ((cairo_atomic_intptr_t*)(x), (cairo_atomic_intptr_t)oldv, (cairo_atomic_intptr_t)newv)
-
-#endif
-
-#if HAVE_OS_ATOMIC_OPS
-#include <libkern/OSAtomic.h>
-
-#define HAS_ATOMIC_OPS 1
-
-typedef int32_t cairo_atomic_int_t;
-
-# define _cairo_atomic_int_get(x) (OSMemoryBarrier(), *(x))
-# define _cairo_atomic_int_get_relaxed(x) *(x)
-# define _cairo_atomic_int_set_relaxed(x, val) *(x) = (val)
-
-# define _cairo_atomic_int_inc(x) ((void) OSAtomicIncrement32Barrier (x))
-# define _cairo_atomic_int_dec(x) ((void) OSAtomicDecrement32Barrier (x))
-# define _cairo_atomic_int_dec_and_test(x) (OSAtomicDecrement32Barrier (x) == 0)
-# define _cairo_atomic_int_cmpxchg(x, oldv, newv) OSAtomicCompareAndSwap32Barrier(oldv, newv, x)
-
-#if SIZEOF_VOID_P==4
-typedef int32_t cairo_atomic_intptr_t;
-# define _cairo_atomic_ptr_cmpxchg(x, oldv, newv) \
- OSAtomicCompareAndSwap32Barrier((cairo_atomic_intptr_t)oldv, (cairo_atomic_intptr_t)newv, (cairo_atomic_intptr_t *)x)
-
-#elif SIZEOF_VOID_P==8
-typedef int64_t cairo_atomic_intptr_t;
-# define _cairo_atomic_ptr_cmpxchg(x, oldv, newv) \
- OSAtomicCompareAndSwap64Barrier((cairo_atomic_intptr_t)oldv, (cairo_atomic_intptr_t)newv, (cairo_atomic_intptr_t *)x)
-
-#else
-#error No matching integer pointer type
-#endif
-
-# define _cairo_atomic_ptr_get(x) (OSMemoryBarrier(), *(x))
-
-#endif
-
-#ifndef HAS_ATOMIC_OPS
-
-#if SIZEOF_VOID_P==SIZEOF_INT
-typedef unsigned int cairo_atomic_intptr_t;
-#elif SIZEOF_VOID_P==SIZEOF_LONG
-typedef unsigned long cairo_atomic_intptr_t;
-#elif SIZEOF_VOID_P==SIZEOF_LONG_LONG
-typedef unsigned long long cairo_atomic_intptr_t;
-#else
-#error No matching integer pointer type
-#endif
-
-typedef cairo_atomic_intptr_t cairo_atomic_int_t;
-
-cairo_private void
-_cairo_atomic_int_inc (cairo_atomic_int_t *x);
-
-#define _cairo_atomic_int_dec(x) _cairo_atomic_int_dec_and_test(x)
-
-cairo_private cairo_bool_t
-_cairo_atomic_int_dec_and_test (cairo_atomic_int_t *x);
-
-cairo_private cairo_atomic_int_t
-_cairo_atomic_int_cmpxchg_return_old_impl (cairo_atomic_int_t *x, cairo_atomic_int_t oldv, cairo_atomic_int_t newv);
-
-cairo_private void *
-_cairo_atomic_ptr_cmpxchg_return_old_impl (void **x, void *oldv, void *newv);
-
-#define _cairo_atomic_int_cmpxchg_return_old(x, oldv, newv) _cairo_atomic_int_cmpxchg_return_old_impl (x, oldv, newv)
-#define _cairo_atomic_ptr_cmpxchg_return_old(x, oldv, newv) _cairo_atomic_ptr_cmpxchg_return_old_impl (x, oldv, newv)
-
-#ifdef ATOMIC_OP_NEEDS_MEMORY_BARRIER
-cairo_private cairo_atomic_int_t
-_cairo_atomic_int_get (cairo_atomic_int_t *x);
-cairo_private cairo_atomic_int_t
-_cairo_atomic_int_get_relaxed (cairo_atomic_int_t *x);
-void
-_cairo_atomic_int_set_relaxed (cairo_atomic_int_t *x, cairo_atomic_int_t val);
-# define _cairo_atomic_ptr_get(x) (void *) _cairo_atomic_int_get((cairo_atomic_int_t *) x)
-#else
-# define _cairo_atomic_int_get(x) (*x)
-# define _cairo_atomic_int_get_relaxed(x) (*x)
-# define _cairo_atomic_int_set_relaxed(x, val) (*x) = (val)
-# define _cairo_atomic_ptr_get(x) (*x)
-#endif
-
-#else
-
-/* Workaround GCC complaining about casts */
-static cairo_always_inline void *
-_cairo_atomic_intptr_to_voidptr (cairo_atomic_intptr_t x)
-{
- return (void *) x;
-}
-
-static cairo_always_inline cairo_atomic_int_t
-_cairo_atomic_int_cmpxchg_return_old_fallback(cairo_atomic_int_t *x, cairo_atomic_int_t oldv, cairo_atomic_int_t newv)
-{
- cairo_atomic_int_t curr;
-
- do {
- curr = _cairo_atomic_int_get (x);
- } while (curr == oldv && !_cairo_atomic_int_cmpxchg (x, oldv, newv));
-
- return curr;
-}
-
-static cairo_always_inline void *
-_cairo_atomic_ptr_cmpxchg_return_old_fallback(void **x, void *oldv, void *newv)
-{
- void *curr;
-
- do {
- curr = _cairo_atomic_ptr_get (x);
- } while (curr == oldv && !_cairo_atomic_ptr_cmpxchg (x, oldv, newv));
-
- return curr;
-}
-#endif
-
-#ifndef _cairo_atomic_int_cmpxchg_return_old
-#define _cairo_atomic_int_cmpxchg_return_old(x, oldv, newv) _cairo_atomic_int_cmpxchg_return_old_fallback (x, oldv, newv)
-#endif
-
-#ifndef _cairo_atomic_ptr_cmpxchg_return_old
-#define _cairo_atomic_ptr_cmpxchg_return_old(x, oldv, newv) _cairo_atomic_ptr_cmpxchg_return_old_fallback (x, oldv, newv)
-#endif
-
-#ifndef _cairo_atomic_int_cmpxchg
-#define _cairo_atomic_int_cmpxchg(x, oldv, newv) (_cairo_atomic_int_cmpxchg_return_old (x, oldv, newv) == oldv)
-#endif
-
-#ifndef _cairo_atomic_ptr_cmpxchg
-#define _cairo_atomic_ptr_cmpxchg(x, oldv, newv) (_cairo_atomic_ptr_cmpxchg_return_old (x, oldv, newv) == oldv)
-#endif
-
-#define _cairo_atomic_uint_get(x) _cairo_atomic_int_get(x)
-#define _cairo_atomic_uint_cmpxchg(x, oldv, newv) \
- _cairo_atomic_int_cmpxchg((cairo_atomic_int_t *)x, oldv, newv)
-
-#define _cairo_status_set_error(status, err) do { \
- int ret__; \
- assert (err < CAIRO_STATUS_LAST_STATUS); \
- /* hide compiler warnings about cairo_status_t != int (gcc treats its as \
- * an unsigned integer instead, and about ignoring the return value. */ \
- ret__ = _cairo_atomic_int_cmpxchg ((cairo_atomic_int_t *) status, CAIRO_STATUS_SUCCESS, err); \
- (void) ret__; \
-} while (0)
-
-typedef cairo_atomic_int_t cairo_atomic_once_t;
-
-#define CAIRO_ATOMIC_ONCE_UNINITIALIZED (0)
-#define CAIRO_ATOMIC_ONCE_INITIALIZING (1)
-#define CAIRO_ATOMIC_ONCE_INITIALIZED (2)
-#define CAIRO_ATOMIC_ONCE_INIT CAIRO_ATOMIC_ONCE_UNINITIALIZED
-
-static cairo_always_inline cairo_bool_t
-_cairo_atomic_init_once_enter(cairo_atomic_once_t *once)
-{
- if (likely(_cairo_atomic_int_get(once) == CAIRO_ATOMIC_ONCE_INITIALIZED))
- return 0;
-
- if (_cairo_atomic_int_cmpxchg(once,
- CAIRO_ATOMIC_ONCE_UNINITIALIZED,
- CAIRO_ATOMIC_ONCE_INITIALIZING))
- return 1;
-
- while (_cairo_atomic_int_get(once) != CAIRO_ATOMIC_ONCE_INITIALIZED) {}
- return 0;
-}
-
-static cairo_always_inline void
-_cairo_atomic_init_once_leave(cairo_atomic_once_t *once)
-{
- if (unlikely(!_cairo_atomic_int_cmpxchg(once,
- CAIRO_ATOMIC_ONCE_INITIALIZING,
- CAIRO_ATOMIC_ONCE_INITIALIZED)))
- assert (0 && "incorrect use of _cairo_atomic_init_once API (once != CAIRO_ATOMIC_ONCE_INITIALIZING)");
-}
-
-CAIRO_END_DECLS
-
-#endif