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Update SDL2 to 2.0.2

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MAN-AT-ARMS 2014-03-08 22:00:38 -05:00 • committed by Zack Middleton
parent 9ec7931c54
commit dafed0fd66
93 changed files with 7247 additions and 609 deletions
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117
code/SDL2/include/SDL_atomic.h
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@ -1,6 +1,6 @@
/*
Simple DirectMedia Layer
Copyright (C) 1997-2013 Sam Lantinga <slouken@libsdl.org>
Copyright (C) 1997-2014 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
@ -64,13 +64,6 @@
#include "begin_code.h"
/* Need to do this here because intrin.h has C++ code in it */
/* Visual Studio 2005 has a bug where intrin.h conflicts with winnt.h */
#if defined(_MSC_VER) && (_MSC_VER >= 1500)
#include <intrin.h>
#define HAVE_MSC_ATOMICS 1
#endif
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
@ -91,7 +84,7 @@ extern "C" {
* The spin lock functions and type are required and can not be
* emulated because they are used in the atomic emulation code.
*/
/*@{*/
/* @{ */
typedef int SDL_SpinLock;
@ -118,7 +111,7 @@ extern DECLSPEC void SDLCALL SDL_AtomicLock(SDL_SpinLock *lock);
*/
extern DECLSPEC void SDLCALL SDL_AtomicUnlock(SDL_SpinLock *lock);
/*@}*//*SDL AtomicLock*/
/* @} *//* SDL AtomicLock */
/**
@ -181,57 +174,11 @@ extern DECLSPEC void SDLCALL SDL_MemoryBarrierAcquire();
#define SDL_MemoryBarrierAcquire() SDL_CompilerBarrier()
#endif
/* Platform specific optimized versions of the atomic functions,
* you can disable these by defining SDL_DISABLE_ATOMIC_INLINE
*/
#if defined(SDL_ATOMIC_DISABLED) && SDL_ATOMIC_DISABLED
#define SDL_DISABLE_ATOMIC_INLINE
#endif
#ifndef SDL_DISABLE_ATOMIC_INLINE
#ifdef HAVE_MSC_ATOMICS
#define SDL_AtomicSet(a, v) _InterlockedExchange((long*)&(a)->value, (v))
#define SDL_AtomicAdd(a, v) _InterlockedExchangeAdd((long*)&(a)->value, (v))
#define SDL_AtomicCAS(a, oldval, newval) (_InterlockedCompareExchange((long*)&(a)->value, (newval), (oldval)) == (oldval))
#define SDL_AtomicSetPtr(a, v) _InterlockedExchangePointer((a), (v))
#if _M_IX86
#define SDL_AtomicCASPtr(a, oldval, newval) (_InterlockedCompareExchange((long*)(a), (long)(newval), (long)(oldval)) == (long)(oldval))
#else
#define SDL_AtomicCASPtr(a, oldval, newval) (_InterlockedCompareExchangePointer((a), (newval), (oldval)) == (oldval))
#endif
#elif defined(__MACOSX__)
#include <libkern/OSAtomic.h>
#define SDL_AtomicCAS(a, oldval, newval) OSAtomicCompareAndSwap32Barrier((oldval), (newval), &(a)->value)
#ifdef __LP64__
#define SDL_AtomicCASPtr(a, oldval, newval) OSAtomicCompareAndSwap64Barrier((int64_t)(oldval), (int64_t)(newval), (int64_t*)(a))
#else
#define SDL_AtomicCASPtr(a, oldval, newval) OSAtomicCompareAndSwap32Barrier((int32_t)(oldval), (int32_t)(newval), (int32_t*)(a))
#endif
#elif defined(HAVE_GCC_ATOMICS)
#define SDL_AtomicSet(a, v) __sync_lock_test_and_set(&(a)->value, v)
#define SDL_AtomicAdd(a, v) __sync_fetch_and_add(&(a)->value, v)
#define SDL_AtomicSetPtr(a, v) __sync_lock_test_and_set(a, v)
#define SDL_AtomicCAS(a, oldval, newval) __sync_bool_compare_and_swap(&(a)->value, oldval, newval)
#define SDL_AtomicCASPtr(a, oldval, newval) __sync_bool_compare_and_swap(a, oldval, newval)
#endif
#endif /* !SDL_DISABLE_ATOMIC_INLINE */
/**
* \brief A type representing an atomic integer value. It is a struct
* so people don't accidentally use numeric operations on it.
*/
#ifndef SDL_atomic_t_defined
typedef struct { int value; } SDL_atomic_t;
#endif
/**
* \brief Set an atomic variable to a new value if it is currently an old value.
@ -240,37 +187,19 @@ typedef struct { int value; } SDL_atomic_t;
*
* \note If you don't know what this function is for, you shouldn't use it!
*/
#ifndef SDL_AtomicCAS
extern DECLSPEC SDL_bool SDLCALL SDL_AtomicCAS(SDL_atomic_t *a, int oldval, int newval);
#endif
/**
* \brief Set an atomic variable to a value.
*
* \return The previous value of the atomic variable.
*/
#ifndef SDL_AtomicSet
SDL_FORCE_INLINE int SDL_AtomicSet(SDL_atomic_t *a, int v)
{
int value;
do {
value = a->value;
} while (!SDL_AtomicCAS(a, value, v));
return value;
}
#endif
extern DECLSPEC int SDLCALL SDL_AtomicSet(SDL_atomic_t *a, int v);
/**
* \brief Get the value of an atomic variable
*/
#ifndef SDL_AtomicGet
SDL_FORCE_INLINE int SDL_AtomicGet(SDL_atomic_t *a)
{
int value = a->value;
SDL_CompilerBarrier();
return value;
}
#endif
extern DECLSPEC int SDLCALL SDL_AtomicGet(SDL_atomic_t *a);
/**
* \brief Add to an atomic variable.
@ -279,16 +208,7 @@ SDL_FORCE_INLINE int SDL_AtomicGet(SDL_atomic_t *a)
*
* \note This same style can be used for any number operation
*/
#ifndef SDL_AtomicAdd
SDL_FORCE_INLINE int SDL_AtomicAdd(SDL_atomic_t *a, int v)
{
int value;
do {
value = a->value;
} while (!SDL_AtomicCAS(a, value, (value + v)));
return value;
}
#endif
extern DECLSPEC int SDLCALL SDL_AtomicAdd(SDL_atomic_t *a, int v);
/**
* \brief Increment an atomic variable used as a reference count.
@ -314,38 +234,19 @@ SDL_FORCE_INLINE int SDL_AtomicAdd(SDL_atomic_t *a, int v)
*
* \note If you don't know what this function is for, you shouldn't use it!
*/
#ifndef SDL_AtomicCASPtr
extern DECLSPEC SDL_bool SDLCALL SDL_AtomicCASPtr(void* *a, void *oldval, void *newval);
#endif
extern DECLSPEC SDL_bool SDLCALL SDL_AtomicCASPtr(void **a, void *oldval, void *newval);
/**
* \brief Set a pointer to a value atomically.
*
* \return The previous value of the pointer.
*/
#ifndef SDL_AtomicSetPtr
SDL_FORCE_INLINE void* SDL_AtomicSetPtr(void* *a, void* v)
{
void* value;
do {
value = *a;
} while (!SDL_AtomicCASPtr(a, value, v));
return value;
}
#endif
extern DECLSPEC void* SDLCALL SDL_AtomicSetPtr(void **a, void* v);
/**
* \brief Get the value of a pointer atomically.
*/
#ifndef SDL_AtomicGetPtr
SDL_FORCE_INLINE void* SDL_AtomicGetPtr(void* *a)
{
void* value = *a;
SDL_CompilerBarrier();
return value;
}
#endif
extern DECLSPEC void* SDLCALL SDL_AtomicGetPtr(void **a);
/* Ends C function definitions when using C++ */
#ifdef __cplusplus