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

annotate include/SDL_endian.h @ 3191:91b335df6fc8

Fixed bug #750 Since many different event structures include windowID it should be placed near the beginning of the structure (preferably right after type) so it's position is the same between different events. This is to avoid code like this: if (event.type == SDL_WINDOWEVENT) win = event.window.windowID; else if ((SDL_EVENTMASK(event.type) & SDL_KEYEVENTMASK) != 0) win = event.key.windowID; else if (event.type == SDL_TEXTINPUT) win = event.text.windowID; else if (event.type == SDL_MOUSEMOTION) win = event.motion.windowID; else if ((SDL_EVENTMASK(event.type) & (SDL_MOUBUTTONDOWNMASK | SDL_MOUBUTTONUPMASK)) != 0) win = event.button.windowID; else if (event.type == SDL_MOUSEWHEEL) win = event.wheel.windowID; ... in favor of: win = event.window.windowID;

author	Sam Lantinga <slouken@libsdl.org>
date	Wed, 10 Jun 2009 14:00:21 +0000
parents	bcd41b269091
children	d3baf5ac4e37

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
2859 99210400e8b9 Updated copyright date Sam Lantinga <slouken@libsdl.org> parents: 1985 diff changeset	3 Copyright (C) 1997-2009 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
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 1044 diff changeset	6 modify it under the terms of the GNU Lesser General Public
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	7 License as published by the Free Software Foundation; either
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 1044 diff changeset	8 version 2.1 of the License, or (at your option) any later version.
0 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
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 1044 diff changeset	13 Lesser General Public License for more details.
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	14
1312 c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 1044 diff changeset	15 You should have received a copy of the GNU Lesser General Public
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 1044 diff changeset	16 License along with this library; if not, write to the Free Software
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges) Sam Lantinga <slouken@libsdl.org> parents: 1044 diff changeset	17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
0 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
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	23 /**
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	24 * \file SDL_endian.h
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	25 *
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	26 * Functions for reading and writing endian-specific values
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	27 */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	28
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	29 #ifndef _SDL_endian_h
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	30 #define _SDL_endian_h
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	31
1354 22f39393668a Fixed build problem with SDL_string.c Sam Lantinga <slouken@libsdl.org> parents: 1353 diff changeset	32 #include "SDL_stdinc.h"
22f39393668a Fixed build problem with SDL_string.c Sam Lantinga <slouken@libsdl.org> parents: 1353 diff changeset	33
22f39393668a Fixed build problem with SDL_string.c Sam Lantinga <slouken@libsdl.org> parents: 1353 diff changeset	34 /* The two types of endianness */
22f39393668a Fixed build problem with SDL_string.c Sam Lantinga <slouken@libsdl.org> parents: 1353 diff changeset	35 #define SDL_LIL_ENDIAN 1234
22f39393668a Fixed build problem with SDL_string.c Sam Lantinga <slouken@libsdl.org> parents: 1353 diff changeset	36 #define SDL_BIG_ENDIAN 4321
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	37
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	38 #ifndef SDL_BYTEORDER /* Not defined in SDL_config.h? */
1474 351d757c7edd Maybe it's easier to collect the big-endian architectures. :) Sam Lantinga <slouken@libsdl.org> parents: 1469 diff changeset	39 #if defined(__hppa__) \|\| \
1475 d45aefcac017 Get Microsoft's preprocessor symbols in there Sam Lantinga <slouken@libsdl.org> parents: 1474 diff changeset	40 defined(__m68k__) \|\| defined(mc68000) \|\| defined(_M_M68K) \|\| \
1474 351d757c7edd Maybe it's easier to collect the big-endian architectures. :) Sam Lantinga <slouken@libsdl.org> parents: 1469 diff changeset	41 (defined(__MIPS__) && defined(__MISPEB__)) \|\| \
1475 d45aefcac017 Get Microsoft's preprocessor symbols in there Sam Lantinga <slouken@libsdl.org> parents: 1474 diff changeset	42 defined(__ppc__) \|\| defined(__POWERPC__) \|\| defined(_M_PPC) \|\| \
1474 351d757c7edd Maybe it's easier to collect the big-endian architectures. :) Sam Lantinga <slouken@libsdl.org> parents: 1469 diff changeset	43 defined(__sparc__)
351d757c7edd Maybe it's easier to collect the big-endian architectures. :) Sam Lantinga <slouken@libsdl.org> parents: 1469 diff changeset	44 #define SDL_BYTEORDER SDL_BIG_ENDIAN
351d757c7edd Maybe it's easier to collect the big-endian architectures. :) Sam Lantinga <slouken@libsdl.org> parents: 1469 diff changeset	45 #else
1354 22f39393668a Fixed build problem with SDL_string.c Sam Lantinga <slouken@libsdl.org> parents: 1353 diff changeset	46 #define SDL_BYTEORDER SDL_LIL_ENDIAN
22f39393668a Fixed build problem with SDL_string.c Sam Lantinga <slouken@libsdl.org> parents: 1353 diff changeset	47 #endif
22f39393668a Fixed build problem with SDL_string.c Sam Lantinga <slouken@libsdl.org> parents: 1353 diff changeset	48 #endif /* !SDL_BYTEORDER */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	49
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
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	54 /* INDENT-OFF */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	55 extern "C" {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	56 /* INDENT-ON */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	57 #endif
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	58
1369 42eeb14770e3 Doh! Bitten by search and replace. :) Sam Lantinga <slouken@libsdl.org> parents: 1368 diff changeset	59 /* Use inline functions for compilers that support them, and static
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	60 functions for those that do not. Because these functions become
1369 42eeb14770e3 Doh! Bitten by search and replace. :) Sam Lantinga <slouken@libsdl.org> parents: 1368 diff changeset	61 static for compilers that do not support inline functions, this
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	62 header should only be included in files that actually use them.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	63 */
1372 3e171fa5f4df Whoops Sam Lantinga <slouken@libsdl.org> parents: 1369 diff changeset	64 #if defined(__GNUC__) && defined(__i386__) && \
1368 533567cbb576 More fixes for building on BeOS Sam Lantinga <slouken@libsdl.org> parents: 1354 diff changeset	65 !(__GNUC__ == 2 && __GNUC_MINOR__ == 95 /* broken gcc version */)
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	66 static __inline__ Uint16
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	67 SDL_Swap16(Uint16 x)
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	68 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	69 __asm__("xchgb %b0,%h0": "=q"(x):"0"(x));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	70 return x;
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	71 }
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	72 #elif defined(__GNUC__) && defined(__x86_64__)
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	73 static __inline__ Uint16
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	74 SDL_Swap16(Uint16 x)
848 85af65457959 Avoid using kernel internal headers Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	75 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	76 __asm__("xchgb %b0,%h0": "=Q"(x):"0"(x));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	77 return x;
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	78 }
859 6b28c91bf3d2 This works on MacOS X too. :) Sam Lantinga <slouken@libsdl.org> parents: 849 diff changeset	79 #elif defined(__GNUC__) && (defined(__powerpc__) \|\| defined(__ppc__))
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	80 static __inline__ Uint16
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	81 SDL_Swap16(Uint16 x)
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	82 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	83 Uint16 result;
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	84
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	85 __asm__("rlwimi %0,%2,8,16,23": "=&r"(result):"0"(x >> 8), "r"(x));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	86 return result;
848 85af65457959 Avoid using kernel internal headers Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	87 }
1044 d36ea7925763 Optimize also for 68020 and higher CPUs Patrice Mandin <patmandin@gmail.com> parents: 1033 diff changeset	88 #elif defined(__GNUC__) && (defined(__M68000__) \|\| defined(__M68020__))
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	89 static __inline__ Uint16
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	90 SDL_Swap16(Uint16 x)
985 cec525374267 Add m68k assembly routines for endianness conversion Patrice Mandin <patmandin@gmail.com> parents: 859 diff changeset	91 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	92 __asm__("rorw #8,%0": "=d"(x): "0"(x):"cc");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	93 return x;
985 cec525374267 Add m68k assembly routines for endianness conversion Patrice Mandin <patmandin@gmail.com> parents: 859 diff changeset	94 }
848 85af65457959 Avoid using kernel internal headers Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	95 #else
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	96 static __inline__ Uint16
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	97 SDL_Swap16(Uint16 x)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	98 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	99 return ((x << 8) \| (x >> 8));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	100 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	101 #endif
848 85af65457959 Avoid using kernel internal headers Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	102
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	103 #if defined(__GNUC__) && defined(__i386__)
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	104 static __inline__ Uint32
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	105 SDL_Swap32(Uint32 x)
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	106 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	107 __asm__("bswap %0": "=r"(x):"0"(x));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	108 return x;
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	109 }
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	110 #elif defined(__GNUC__) && defined(__x86_64__)
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	111 static __inline__ Uint32
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	112 SDL_Swap32(Uint32 x)
848 85af65457959 Avoid using kernel internal headers Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	113 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	114 __asm__("bswapl %0": "=r"(x):"0"(x));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	115 return x;
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	116 }
859 6b28c91bf3d2 This works on MacOS X too. :) Sam Lantinga <slouken@libsdl.org> parents: 849 diff changeset	117 #elif defined(__GNUC__) && (defined(__powerpc__) \|\| defined(__ppc__))
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	118 static __inline__ Uint32
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	119 SDL_Swap32(Uint32 x)
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	120 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	121 Uint32 result;
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	122
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	123 __asm__("rlwimi %0,%2,24,16,23": "=&r"(result):"0"(x >> 24), "r"(x));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	124 __asm__("rlwimi %0,%2,8,8,15": "=&r"(result):"0"(result), "r"(x));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	125 __asm__("rlwimi %0,%2,24,0,7": "=&r"(result):"0"(result), "r"(x));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	126 return result;
848 85af65457959 Avoid using kernel internal headers Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	127 }
1044 d36ea7925763 Optimize also for 68020 and higher CPUs Patrice Mandin <patmandin@gmail.com> parents: 1033 diff changeset	128 #elif defined(__GNUC__) && (defined(__M68000__) \|\| defined(__M68020__))
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	129 static __inline__ Uint32
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	130 SDL_Swap32(Uint32 x)
985 cec525374267 Add m68k assembly routines for endianness conversion Patrice Mandin <patmandin@gmail.com> parents: 859 diff changeset	131 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	132 __asm__("rorw #8,%0\n\tswap %0\n\trorw #8,%0": "=d"(x): "0"(x):"cc");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	133 return x;
985 cec525374267 Add m68k assembly routines for endianness conversion Patrice Mandin <patmandin@gmail.com> parents: 859 diff changeset	134 }
848 85af65457959 Avoid using kernel internal headers Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	135 #else
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	136 static __inline__ Uint32
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	137 SDL_Swap32(Uint32 x)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	138 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	139 return ((x << 24) \| ((x << 8) & 0x00FF0000) \| ((x >> 8) & 0x0000FF00) \|
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	140 (x >> 24));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	141 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	142 #endif
848 85af65457959 Avoid using kernel internal headers Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	143
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	144 #ifdef SDL_HAS_64BIT_TYPE
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	145 #if defined(__GNUC__) && defined(__i386__)
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	146 static __inline__ Uint64
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	147 SDL_Swap64(Uint64 x)
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	148 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	149 union
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	150 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	151 struct
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	152 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	153 Uint32 a, b;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	154 } s;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	155 Uint64 u;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	156 } v;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	157 v.u = x;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	158 __asm__("bswapl %0 ; bswapl %1 ; xchgl %0,%1": "=r"(v.s.a), "=r"(v.s.b):"0"(v.s.a),
3013 8cc00819c8d6 Reverted Bob's indent checkin Sam Lantinga <slouken@libsdl.org> parents: 3011 diff changeset	159 "1"(v.s.
8cc00819c8d6 Reverted Bob's indent checkin Sam Lantinga <slouken@libsdl.org> parents: 3011 diff changeset	160 b));
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	161 return v.u;
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	162 }
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	163 #elif defined(__GNUC__) && defined(__x86_64__)
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	164 static __inline__ Uint64
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	165 SDL_Swap64(Uint64 x)
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	166 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	167 __asm__("bswapq %0": "=r"(x):"0"(x));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	168 return x;
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	169 }
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	170 #else
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	171 static __inline__ Uint64
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	172 SDL_Swap64(Uint64 x)
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	173 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	174 Uint32 hi, lo;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	175
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	176 /* Separate into high and low 32-bit values and swap them */
3067 bcd41b269091 Fixed bug #537 Sam Lantinga <slouken@libsdl.org> parents: 3013 diff changeset	177 lo = SDL_static_cast(Uint32, x & 0xFFFFFFFF);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	178 x >>= 32;
3067 bcd41b269091 Fixed bug #537 Sam Lantinga <slouken@libsdl.org> parents: 3013 diff changeset	179 hi = SDL_static_cast(Uint32, x & 0xFFFFFFFF);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	180 x = SDL_Swap32(lo);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	181 x <<= 32;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	182 x \|= SDL_Swap32(hi);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	183 return (x);
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 #endif
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	186 #else
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	187 /* This is mainly to keep compilers from complaining in SDL code.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	188 If there is no real 64-bit datatype, then compilers will complain about
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	189 the fake 64-bit datatype that SDL provides when it compiles user code.
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	190 */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	191 #define SDL_Swap64(X) (X)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	192 #endif /* SDL_HAS_64BIT_TYPE */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	193
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	194
1984 b910bcabec26 Added SDL_SwapFloat* function/macros. Reference Bugzilla #293. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	195 static __inline__ float
b910bcabec26 Added SDL_SwapFloat* function/macros. Reference Bugzilla #293. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	196 SDL_SwapFloat(float x)
b910bcabec26 Added SDL_SwapFloat* function/macros. Reference Bugzilla #293. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	197 {
1985 8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1984 diff changeset	198 union
8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1984 diff changeset	199 {
8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1984 diff changeset	200 float f;
8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1984 diff changeset	201 Uint32 ui32;
8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1984 diff changeset	202 } swapper;
1984 b910bcabec26 Added SDL_SwapFloat* function/macros. Reference Bugzilla #293. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	203 swapper.f = x;
b910bcabec26 Added SDL_SwapFloat* function/macros. Reference Bugzilla #293. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	204 swapper.ui32 = SDL_Swap32(swapper.ui32);
b910bcabec26 Added SDL_SwapFloat* function/macros. Reference Bugzilla #293. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	205 return swapper.f;
b910bcabec26 Added SDL_SwapFloat* function/macros. Reference Bugzilla #293. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	206 }
b910bcabec26 Added SDL_SwapFloat* function/macros. Reference Bugzilla #293. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	207
b910bcabec26 Added SDL_SwapFloat* function/macros. Reference Bugzilla #293. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	208
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	209 /* Byteswap item from the specified endianness to the native endianness */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	210 #if SDL_BYTEORDER == SDL_LIL_ENDIAN
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	211 #define SDL_SwapLE16(X) (X)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	212 #define SDL_SwapLE32(X) (X)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	213 #define SDL_SwapLE64(X) (X)
1984 b910bcabec26 Added SDL_SwapFloat* function/macros. Reference Bugzilla #293. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	214 #define SDL_SwapFloatLE(X) (X)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	215 #define SDL_SwapBE16(X) SDL_Swap16(X)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	216 #define SDL_SwapBE32(X) SDL_Swap32(X)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	217 #define SDL_SwapBE64(X) SDL_Swap64(X)
1984 b910bcabec26 Added SDL_SwapFloat* function/macros. Reference Bugzilla #293. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	218 #define SDL_SwapFloatBE(X) SDL_SwapFloat(X)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	219 #else
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	220 #define SDL_SwapLE16(X) SDL_Swap16(X)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	221 #define SDL_SwapLE32(X) SDL_Swap32(X)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	222 #define SDL_SwapLE64(X) SDL_Swap64(X)
1984 b910bcabec26 Added SDL_SwapFloat* function/macros. Reference Bugzilla #293. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	223 #define SDL_SwapFloatLE(X) SDL_SwapFloat(X)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	224 #define SDL_SwapBE16(X) (X)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	225 #define SDL_SwapBE32(X) (X)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	226 #define SDL_SwapBE64(X) (X)
1984 b910bcabec26 Added SDL_SwapFloat* function/macros. Reference Bugzilla #293. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	227 #define SDL_SwapFloatBE(X) (X)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	228 #endif
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	229
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	230 /* Ends C function definitions when using C++ */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	231 #ifdef __cplusplus
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	232 /* INDENT-OFF */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	233 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	234 /* INDENT-ON */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	235 #endif
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	236 #include "close_code.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	237
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	238 #endif /* _SDL_endian_h */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	239
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1475 diff changeset	240 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

annotate include/SDL_endian.h @ 3191:91b335df6fc8