Updated SDL2

This commit is contained in:
Gerhard Stein
2020-09-28 16:41:30 +02:00
parent c6950836a0
commit 2ecfbd1189
1421 changed files with 369825 additions and 151297 deletions

View File

@@ -1,6 +1,6 @@
/*
Simple DirectMedia Layer
Copyright (C) 1997-2013 Sam Lantinga <slouken@libsdl.org>
Copyright (C) 1997-2020 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
@@ -25,34 +25,37 @@
* Functions for reading and writing endian-specific values
*/
#ifndef _SDL_endian_h
#define _SDL_endian_h
#ifndef SDL_endian_h_
#define SDL_endian_h_
#include "SDL_stdinc.h"
/**
* \name The two types of endianness
*/
/*@{*/
/* @{ */
#define SDL_LIL_ENDIAN 1234
#define SDL_BIG_ENDIAN 4321
/*@}*/
/* @} */
#ifndef SDL_BYTEORDER /* Not defined in SDL_config.h? */
#ifdef __linux__
#include <endian.h>
#define SDL_BYTEORDER __BYTE_ORDER
#else /* __linux __ */
#elif defined(__OpenBSD__)
#include <endian.h>
#define SDL_BYTEORDER BYTE_ORDER
#else
#if defined(__hppa__) || \
defined(__m68k__) || defined(mc68000) || defined(_M_M68K) || \
(defined(__MIPS__) && defined(__MISPEB__)) || \
(defined(__MIPS__) && defined(__MIPSEB__)) || \
defined(__ppc__) || defined(__POWERPC__) || defined(_M_PPC) || \
defined(__sparc__)
#define SDL_BYTEORDER SDL_BIG_ENDIAN
#else
#define SDL_BYTEORDER SDL_LIL_ENDIAN
#endif
#endif /* __linux __ */
#endif /* __linux__ */
#endif /* !SDL_BYTEORDER */
@@ -96,6 +99,12 @@ SDL_Swap16(Uint16 x)
__asm__("rorw #8,%0": "=d"(x): "0"(x):"cc");
return x;
}
#elif defined(__WATCOMC__) && defined(__386__)
extern _inline Uint16 SDL_Swap16(Uint16);
#pragma aux SDL_Swap16 = \
"xchg al, ah" \
parm [ax] \
modify [ax];
#else
SDL_FORCE_INLINE Uint16
SDL_Swap16(Uint16 x)
@@ -136,6 +145,21 @@ SDL_Swap32(Uint32 x)
__asm__("rorw #8,%0\n\tswap %0\n\trorw #8,%0": "=d"(x): "0"(x):"cc");
return x;
}
#elif defined(__WATCOMC__) && defined(__386__)
extern _inline Uint32 SDL_Swap32(Uint32);
#ifndef __SW_3 /* 486+ */
#pragma aux SDL_Swap32 = \
"bswap eax" \
parm [eax] \
modify [eax];
#else /* 386-only */
#pragma aux SDL_Swap32 = \
"xchg al, ah" \
"ror eax, 16" \
"xchg al, ah" \
parm [eax] \
modify [eax];
#endif
#else
SDL_FORCE_INLINE Uint32
SDL_Swap32(Uint32 x)
@@ -206,7 +230,7 @@ SDL_SwapFloat(float x)
* \name Swap to native
* Byteswap item from the specified endianness to the native endianness.
*/
/*@{*/
/* @{ */
#if SDL_BYTEORDER == SDL_LIL_ENDIAN
#define SDL_SwapLE16(X) (X)
#define SDL_SwapLE32(X) (X)
@@ -226,7 +250,7 @@ SDL_SwapFloat(float x)
#define SDL_SwapBE64(X) (X)
#define SDL_SwapFloatBE(X) (X)
#endif
/*@}*//*Swap to native*/
/* @} *//* Swap to native */
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
@@ -234,6 +258,6 @@ SDL_SwapFloat(float x)
#endif
#include "close_code.h"
#endif /* _SDL_endian_h */
#endif /* SDL_endian_h_ */
/* vi: set ts=4 sw=4 expandtab: */