sdl-ios-xcode: include/SDL_endian.h annotate

annotate include/SDL_endian.h @ 860:2bac79e27868

Create a 2D window and then manually focus a different window on your desktop, call SDL_PumpEvents() so the X11 driver sets its this->hidden->switch_waiting, then set a fullscreen OpenGL window (which makes the X11 driver tear down and create a new window instead of just resizing the existing one), poll for events, and the newly-created window will think it needs to pop back to a window. Fixed by resetting switch_waiting to zero if X11_CreateWindow() had to tear down a previous window.

author	Ryan C. Gordon <icculus@icculus.org>
date	Thu, 26 Feb 2004 15:12:51 +0000
parents	6b28c91bf3d2
children	cec525374267

rev	line source
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	1 /*
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	2 SDL - Simple DirectMedia Layer
769 b8d311d90021 Updated copyright information for 2004 (Happy New Year!) Sam Lantinga <slouken@libsdl.org> parents: 337 diff changeset	3 Copyright (C) 1997-2004 Sam Lantinga
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	4
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	5 This library is free software; you can redistribute it and/or
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	6 modify it under the terms of the GNU Library General Public
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	7 License as published by the Free Software Foundation; either
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	8 version 2 of the License, or (at your option) any later version.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	9
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	10 This library is distributed in the hope that it will be useful,
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	11 but WITHOUT ANY WARRANTY; without even the implied warranty of
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	13 Library General Public License for more details.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	14
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	15 You should have received a copy of the GNU Library General Public
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	16 License along with this library; if not, write to the Free
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	18
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	19 Sam Lantinga
251 b8688cfdc232 Updated the headers with the correct e-mail address Sam Lantinga <slouken@libsdl.org> parents: 0 diff changeset	20 slouken@libsdl.org
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	21 */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	22
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	23 #ifdef SAVE_RCSID
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	24 static char rcsid =
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	25 "@(#) $Id$";
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	26 #endif
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	27
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	28 /* Functions for reading and writing endian-specific values */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	29
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	30 #ifndef _SDL_endian_h
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	31 #define _SDL_endian_h
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	32
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	33 /* These functions read and write data of the specified endianness,
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	34 dynamically translating to the host machine endianness.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	35
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	36 e.g.: If you want to read a 16 bit value on big-endian machine from
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	37 an open file containing little endian values, you would use:
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	38 value = SDL_ReadLE16(rp);
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	39 Note that the read/write functions use SDL_RWops pointers
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	40 instead of FILE pointers. This allows you to read and write
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	41 endian values from large chunks of memory as well as files
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	42 and other data sources.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	43 */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	44
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	45 #include <stdio.h>
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	46
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	47 #include "SDL_types.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	48 #include "SDL_rwops.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	49 #include "SDL_byteorder.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	50
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	51 #include "begin_code.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	52 /* Set up for C function definitions, even when using C++ */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	53 #ifdef __cplusplus
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	54 extern "C" {
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	55 #endif
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	56
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	57 /* Use inline functions for compilers that support them, and static
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	58 functions for those that do not. Because these functions become
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	59 static for compilers that do not support inline functions, this
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	60 header should only be included in files that actually use them.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	61 */
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	62 #if defined(__GNUC__) && defined(__i386__)
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	63 static __inline__ Uint16 SDL_Swap16(Uint16 x)
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	64 {
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	65 __asm__("xchgb %b0,%h0" : "=q" (x) : "0" (x));
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	66 return x;
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	67 }
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	68 #elif defined(__GNUC__) && defined(__x86_64__)
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	69 static __inline__ Uint16 SDL_Swap16(Uint16 x)
848 85af65457959 Avoid using kernel internal headers Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	70 {
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	71 __asm__("xchgb %b0,%h0" : "=q" (x) : "0" (x));
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	72 return x;
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	73 }
859 6b28c91bf3d2 This works on MacOS X too. :) Sam Lantinga <slouken@libsdl.org> parents: 849 diff changeset	74 #elif defined(__GNUC__) && (defined(__powerpc__) \|\| defined(__ppc__))
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	75 static __inline__ Uint16 SDL_Swap16(Uint16 x)
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	76 {
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	77 Uint16 result;
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	78
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	79 __asm__("rlwimi %0,%2,8,16,23" : "=&r" (result) : "0" (x >> 8), "r" (x));
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	80 return result;
848 85af65457959 Avoid using kernel internal headers Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	81 }
85af65457959 Avoid using kernel internal headers Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	82 #else
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	83 static __inline__ Uint16 SDL_Swap16(Uint16 x) {
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	84 return((x<<8)\|(x>>8));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	85 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	86 #endif
848 85af65457959 Avoid using kernel internal headers Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	87
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	88 #if defined(__GNUC__) && defined(__i386__)
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	89 static __inline__ Uint32 SDL_Swap32(Uint32 x)
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	90 {
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	91 __asm__("bswap %0" : "=r" (x) : "0" (x));
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	92 return x;
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	93 }
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	94 #elif defined(__GNUC__) && defined(__x86_64__)
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	95 static __inline__ Uint32 SDL_Swap32(Uint32 x)
848 85af65457959 Avoid using kernel internal headers Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	96 {
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	97 __asm__("bswapl %0" : "=r" (x) : "0" (x));
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	98 return x;
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	99 }
859 6b28c91bf3d2 This works on MacOS X too. :) Sam Lantinga <slouken@libsdl.org> parents: 849 diff changeset	100 #elif defined(__GNUC__) && (defined(__powerpc__) \|\| defined(__ppc__))
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	101 static __inline__ Uint32 SDL_Swap32(Uint32 x)
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	102 {
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	103 Uint32 result;
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	104
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	105 __asm__("rlwimi %0,%2,24,16,23" : "=&r" (result) : "0" (x>>24), "r" (x));
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	106 __asm__("rlwimi %0,%2,8,8,15" : "=&r" (result) : "0" (result), "r" (x));
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	107 __asm__("rlwimi %0,%2,24,0,7" : "=&r" (result) : "0" (result), "r" (x));
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	108 return result;
848 85af65457959 Avoid using kernel internal headers Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	109 }
85af65457959 Avoid using kernel internal headers Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	110 #else
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	111 static __inline__ Uint32 SDL_Swap32(Uint32 x) {
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	112 return((x<<24)\|((x<<8)&0x00FF0000)\|((x>>8)&0x0000FF00)\|(x>>24));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	113 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	114 #endif
848 85af65457959 Avoid using kernel internal headers Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	115
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	116 #ifdef SDL_HAS_64BIT_TYPE
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	117 #if defined(__GNUC__) && defined(__i386__)
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	118 static __inline__ Uint64 SDL_Swap64(Uint64 x)
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	119 {
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	120 union {
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	121 struct { Uint32 a,b; } s;
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	122 Uint64 u;
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	123 } v;
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	124 v.u = x;
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	125 __asm__("bswapl %0 ; bswapl %1 ; xchgl %0,%1"
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	126 : "=r" (v.s.a), "=r" (v.s.b)
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	127 : "0" (v.s.a), "1" (v.s.b));
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	128 return v.u;
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	129 }
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	130 #elif defined(__GNUC__) && defined(__x86_64__)
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	131 static __inline__ Uint64 SDL_Swap64(Uint64 x)
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	132 {
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	133 __asm__("bswapq %0" : "=r" (x) : "0" (x));
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	134 return x;
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	135 }
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	136 #else
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	137 static __inline__ Uint64 SDL_Swap64(Uint64 x)
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	138 {
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	139 Uint32 hi, lo;
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	140
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	141 /* Separate into high and low 32-bit values and swap them */
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	142 lo = (Uint32)(x&0xFFFFFFFF);
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	143 x >>= 32;
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	144 hi = (Uint32)(x&0xFFFFFFFF);
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	145 x = SDL_Swap32(lo);
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	146 x <<= 32;
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	147 x \|= SDL_Swap32(hi);
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	148 return(x);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	149 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	150 #endif
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	151 #else
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	152 /* This is mainly to keep compilers from complaining in SDL code.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	153 If there is no real 64-bit datatype, then compilers will complain about
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	154 the fake 64-bit datatype that SDL provides when it compiles user code.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	155 */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	156 #define SDL_Swap64(X) (X)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	157 #endif /* SDL_HAS_64BIT_TYPE */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	158
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	159
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	160 /* Byteswap item from the specified endianness to the native endianness */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	161 #if SDL_BYTEORDER == SDL_LIL_ENDIAN
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	162 #define SDL_SwapLE16(X) (X)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	163 #define SDL_SwapLE32(X) (X)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	164 #define SDL_SwapLE64(X) (X)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	165 #define SDL_SwapBE16(X) SDL_Swap16(X)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	166 #define SDL_SwapBE32(X) SDL_Swap32(X)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	167 #define SDL_SwapBE64(X) SDL_Swap64(X)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	168 #else
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	169 #define SDL_SwapLE16(X) SDL_Swap16(X)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	170 #define SDL_SwapLE32(X) SDL_Swap32(X)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	171 #define SDL_SwapLE64(X) SDL_Swap64(X)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	172 #define SDL_SwapBE16(X) (X)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	173 #define SDL_SwapBE32(X) (X)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	174 #define SDL_SwapBE64(X) (X)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	175 #endif
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	176
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	177 /* Read an item of the specified endianness and return in native format */
337 9154ec9ca3d2 Explicitly specify the SDL API calling convention (C by default) Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	178 extern DECLSPEC Uint16 SDLCALL SDL_ReadLE16(SDL_RWops *src);
9154ec9ca3d2 Explicitly specify the SDL API calling convention (C by default) Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	179 extern DECLSPEC Uint16 SDLCALL SDL_ReadBE16(SDL_RWops *src);
9154ec9ca3d2 Explicitly specify the SDL API calling convention (C by default) Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	180 extern DECLSPEC Uint32 SDLCALL SDL_ReadLE32(SDL_RWops *src);
9154ec9ca3d2 Explicitly specify the SDL API calling convention (C by default) Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	181 extern DECLSPEC Uint32 SDLCALL SDL_ReadBE32(SDL_RWops *src);
9154ec9ca3d2 Explicitly specify the SDL API calling convention (C by default) Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	182 extern DECLSPEC Uint64 SDLCALL SDL_ReadLE64(SDL_RWops *src);
9154ec9ca3d2 Explicitly specify the SDL API calling convention (C by default) Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	183 extern DECLSPEC Uint64 SDLCALL SDL_ReadBE64(SDL_RWops *src);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	184
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	185 /* Write an item of native format to the specified endianness */
337 9154ec9ca3d2 Explicitly specify the SDL API calling convention (C by default) Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	186 extern DECLSPEC int SDLCALL SDL_WriteLE16(SDL_RWops *dst, Uint16 value);
9154ec9ca3d2 Explicitly specify the SDL API calling convention (C by default) Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	187 extern DECLSPEC int SDLCALL SDL_WriteBE16(SDL_RWops *dst, Uint16 value);
9154ec9ca3d2 Explicitly specify the SDL API calling convention (C by default) Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	188 extern DECLSPEC int SDLCALL SDL_WriteLE32(SDL_RWops *dst, Uint32 value);
9154ec9ca3d2 Explicitly specify the SDL API calling convention (C by default) Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	189 extern DECLSPEC int SDLCALL SDL_WriteBE32(SDL_RWops *dst, Uint32 value);
9154ec9ca3d2 Explicitly specify the SDL API calling convention (C by default) Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	190 extern DECLSPEC int SDLCALL SDL_WriteLE64(SDL_RWops *dst, Uint64 value);
9154ec9ca3d2 Explicitly specify the SDL API calling convention (C by default) Sam Lantinga <slouken@libsdl.org> parents: 297 diff changeset	191 extern DECLSPEC int SDLCALL SDL_WriteBE64(SDL_RWops *dst, Uint64 value);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	192
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	193
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	194 /* Ends C function definitions when using C++ */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	195 #ifdef __cplusplus
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	196 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	197 #endif
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	198 #include "close_code.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	199
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	200 #endif /* _SDL_endian_h */

Mercurial > sdl-ios-xcode

annotate include/SDL_endian.h @ 860:2bac79e27868