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

annotate include/SDL_endian.h @ 5172:ededa1ccf91c

Switched the SDL 1.2 compatibility to use the window surface, so it's fast even when there's no hardware acceleration available. This means that the YUV overlay now uses software, but that's okay since fast YUV code should be using the textures now anyway.

author	Sam Lantinga <slouken@libsdl.org>
date	Thu, 03 Feb 2011 21:13:55 -0800
parents	116f05eb67c7
children	b530ef003506

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
3697 f7b03b6838cb Fixed bug #926 Sam Lantinga <slouken@libsdl.org> parents: 3630 diff changeset	3 Copyright (C) 1997-2010 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 /**
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3067 diff changeset	24 * \file SDL_endian.h
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3067 diff changeset	25 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3067 diff changeset	26 * Functions for reading and writing endian-specific values
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	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
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3067 diff changeset	34 /**
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3067 diff changeset	35 * \name The two types of endianness
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3067 diff changeset	36 */
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3067 diff changeset	37 /@{/
1354 22f39393668a Fixed build problem with SDL_string.c Sam Lantinga <slouken@libsdl.org> parents: 1353 diff changeset	38 #define SDL_LIL_ENDIAN 1234
22f39393668a Fixed build problem with SDL_string.c Sam Lantinga <slouken@libsdl.org> parents: 1353 diff changeset	39 #define SDL_BIG_ENDIAN 4321
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3067 diff changeset	40 /@}/
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	41
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	42 #ifndef SDL_BYTEORDER /* Not defined in SDL_config.h? */
4552 116f05eb67c7 RedHat patch: SDL-1.2.14-byteorder.patch Sam Lantinga <slouken@libsdl.org> parents: 4439 diff changeset	43 #ifdef __linux__
116f05eb67c7 RedHat patch: SDL-1.2.14-byteorder.patch Sam Lantinga <slouken@libsdl.org> parents: 4439 diff changeset	44 #include <endian.h>
116f05eb67c7 RedHat patch: SDL-1.2.14-byteorder.patch Sam Lantinga <slouken@libsdl.org> parents: 4439 diff changeset	45 #define SDL_BYTEORDER __BYTE_ORDER
116f05eb67c7 RedHat patch: SDL-1.2.14-byteorder.patch Sam Lantinga <slouken@libsdl.org> parents: 4439 diff changeset	46 #else /* __linux __ */
1474 351d757c7edd Maybe it's easier to collect the big-endian architectures. :) Sam Lantinga <slouken@libsdl.org> parents: 1469 diff changeset	47 #if defined(__hppa__) \|\| \
1475 d45aefcac017 Get Microsoft's preprocessor symbols in there Sam Lantinga <slouken@libsdl.org> parents: 1474 diff changeset	48 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	49 (defined(__MIPS__) && defined(__MISPEB__)) \|\| \
1475 d45aefcac017 Get Microsoft's preprocessor symbols in there Sam Lantinga <slouken@libsdl.org> parents: 1474 diff changeset	50 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	51 defined(__sparc__)
351d757c7edd Maybe it's easier to collect the big-endian architectures. :) Sam Lantinga <slouken@libsdl.org> parents: 1469 diff changeset	52 #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	53 #else
1354 22f39393668a Fixed build problem with SDL_string.c Sam Lantinga <slouken@libsdl.org> parents: 1353 diff changeset	54 #define SDL_BYTEORDER SDL_LIL_ENDIAN
22f39393668a Fixed build problem with SDL_string.c Sam Lantinga <slouken@libsdl.org> parents: 1353 diff changeset	55 #endif
4552 116f05eb67c7 RedHat patch: SDL-1.2.14-byteorder.patch Sam Lantinga <slouken@libsdl.org> parents: 4439 diff changeset	56 #endif /* __linux __ */
1354 22f39393668a Fixed build problem with SDL_string.c Sam Lantinga <slouken@libsdl.org> parents: 1353 diff changeset	57 #endif /* !SDL_BYTEORDER */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	58
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	59
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	60 #include "begin_code.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	61 /* Set up for C function definitions, even when using C++ */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	62 #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	63 /* INDENT-OFF */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	64 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	65 /* INDENT-ON */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	66 #endif
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	67
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3067 diff changeset	68 /**
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3067 diff changeset	69 * \file SDL_endian.h
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3067 diff changeset	70 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3067 diff changeset	71 * Uses inline functions for compilers that support them, and static
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3067 diff changeset	72 * functions for those that do not. Because these functions become
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3067 diff changeset	73 * static for compilers that do not support inline functions, this
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3067 diff changeset	74 * header should only be included in files that actually use them.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3067 diff changeset	75 */
1372 3e171fa5f4df Whoops Sam Lantinga <slouken@libsdl.org> parents: 1369 diff changeset	76 #if defined(__GNUC__) && defined(__i386__) && \
1368 533567cbb576 More fixes for building on BeOS Sam Lantinga <slouken@libsdl.org> parents: 1354 diff changeset	77 !(__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	78 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	79 SDL_Swap16(Uint16 x)
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	80 {
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	81 __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	82 return x;
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	83 }
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	84 #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	85 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	86 SDL_Swap16(Uint16 x)
848 85af65457959 Avoid using kernel internal headers Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	87 {
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	88 __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	89 return x;
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	90 }
859 6b28c91bf3d2 This works on MacOS X too. :) Sam Lantinga <slouken@libsdl.org> parents: 849 diff changeset	91 #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	92 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	93 SDL_Swap16(Uint16 x)
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	94 {
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	95 Uint16 result;
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	96
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	97 __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	98 return result;
848 85af65457959 Avoid using kernel internal headers Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	99 }
3630 efb79807afe1 Merged r5194:5195 from branches/SDL-1.2: coldfire cpu arch support. Ryan C. Gordon <icculus@icculus.org> parents: 3407 diff changeset	100 #elif defined(__GNUC__) && (defined(__M68000__) \|\| defined(__M68020__)) && !defined(__mcoldfire__)
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	101 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	102 SDL_Swap16(Uint16 x)
985 cec525374267 Add m68k assembly routines for endianness conversion Patrice Mandin <patmandin@gmail.com> parents: 859 diff changeset	103 {
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 __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	105 return x;
985 cec525374267 Add m68k assembly routines for endianness conversion Patrice Mandin <patmandin@gmail.com> parents: 859 diff changeset	106 }
848 85af65457959 Avoid using kernel internal headers Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	107 #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	108 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	109 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	110 {
4439 ab63fdcf66af esigra 2010-04-17 03:53:57 PDT Sam Lantinga <slouken@libsdl.org> parents: 4432 diff changeset	111 return SDL_static_cast(Uint16, ((x << 8) \| (x >> 8)));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	112 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	113 #endif
848 85af65457959 Avoid using kernel internal headers Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	114
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	115 #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	116 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	117 SDL_Swap32(Uint32 x)
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	118 {
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	119 __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	120 return x;
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	121 }
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	122 #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	123 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	124 SDL_Swap32(Uint32 x)
848 85af65457959 Avoid using kernel internal headers Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	125 {
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	126 __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	127 return x;
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	128 }
859 6b28c91bf3d2 This works on MacOS X too. :) Sam Lantinga <slouken@libsdl.org> parents: 849 diff changeset	129 #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	130 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	131 SDL_Swap32(Uint32 x)
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	132 {
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	133 Uint32 result;
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	134
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	135 __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	136 __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	137 __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	138 return result;
848 85af65457959 Avoid using kernel internal headers Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	139 }
3630 efb79807afe1 Merged r5194:5195 from branches/SDL-1.2: coldfire cpu arch support. Ryan C. Gordon <icculus@icculus.org> parents: 3407 diff changeset	140 #elif defined(__GNUC__) && (defined(__M68000__) \|\| defined(__M68020__)) && !defined(__mcoldfire__)
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	141 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	142 SDL_Swap32(Uint32 x)
985 cec525374267 Add m68k assembly routines for endianness conversion Patrice Mandin <patmandin@gmail.com> parents: 859 diff changeset	143 {
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	144 __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	145 return x;
985 cec525374267 Add m68k assembly routines for endianness conversion Patrice Mandin <patmandin@gmail.com> parents: 859 diff changeset	146 }
848 85af65457959 Avoid using kernel internal headers Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	147 #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	148 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	149 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	150 {
4439 ab63fdcf66af esigra 2010-04-17 03:53:57 PDT Sam Lantinga <slouken@libsdl.org> parents: 4432 diff changeset	151 return SDL_static_cast(Uint32, ((x << 24) \| ((x << 8) & 0x00FF0000) \|
ab63fdcf66af esigra 2010-04-17 03:53:57 PDT Sam Lantinga <slouken@libsdl.org> parents: 4432 diff changeset	152 ((x >> 8) & 0x0000FF00) \| (x >> 24)));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	153 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	154 #endif
848 85af65457959 Avoid using kernel internal headers Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	155
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	156 #ifdef SDL_HAS_64BIT_TYPE
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	157 #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	158 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	159 SDL_Swap64(Uint64 x)
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	160 {
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 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	162 {
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	163 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	164 {
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 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	166 } 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	167 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	168 } 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	169 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	170 __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	171 "1"(v.s.
8cc00819c8d6 Reverted Bob's indent checkin Sam Lantinga <slouken@libsdl.org> parents: 3011 diff changeset	172 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	173 return v.u;
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	174 }
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	175 #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	176 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	177 SDL_Swap64(Uint64 x)
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	178 {
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	179 __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	180 return x;
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	181 }
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	182 #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	183 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	184 SDL_Swap64(Uint64 x)
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	185 {
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	186 Uint32 hi, lo;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	187
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	188 /* 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	189 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	190 x >>= 32;
3067 bcd41b269091 Fixed bug #537 Sam Lantinga <slouken@libsdl.org> parents: 3013 diff changeset	191 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	192 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	193 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	194 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	195 return (x);
0 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 #else
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3067 diff changeset	199 /**
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3067 diff changeset	200 * This is mainly to keep compilers from complaining in SDL code.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3067 diff changeset	201 * If there is no real 64-bit datatype, then compilers will complain about
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3067 diff changeset	202 * the fake 64-bit datatype that SDL provides when it compiles user code.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3067 diff changeset	203 */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	204 #define SDL_Swap64(X) (X)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	205 #endif /* SDL_HAS_64BIT_TYPE */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	206
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	207
1984 b910bcabec26 Added SDL_SwapFloat* function/macros. Reference Bugzilla #293. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	208 static __inline__ float
b910bcabec26 Added SDL_SwapFloat* function/macros. Reference Bugzilla #293. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	209 SDL_SwapFloat(float x)
b910bcabec26 Added SDL_SwapFloat* function/macros. Reference Bugzilla #293. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	210 {
1985 8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1984 diff changeset	211 union
8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1984 diff changeset	212 {
8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1984 diff changeset	213 float f;
8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1984 diff changeset	214 Uint32 ui32;
8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1984 diff changeset	215 } swapper;
1984 b910bcabec26 Added SDL_SwapFloat* function/macros. Reference Bugzilla #293. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	216 swapper.f = x;
b910bcabec26 Added SDL_SwapFloat* function/macros. Reference Bugzilla #293. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	217 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	218 return swapper.f;
b910bcabec26 Added SDL_SwapFloat* function/macros. Reference Bugzilla #293. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	219 }
b910bcabec26 Added SDL_SwapFloat* function/macros. Reference Bugzilla #293. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	220
b910bcabec26 Added SDL_SwapFloat* function/macros. Reference Bugzilla #293. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	221
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3067 diff changeset	222 /**
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3067 diff changeset	223 * \name Swap to native
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3067 diff changeset	224 * Byteswap item from the specified endianness to the native endianness.
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3067 diff changeset	225 */
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3067 diff changeset	226 /@{/
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	227 #if SDL_BYTEORDER == SDL_LIL_ENDIAN
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	228 #define SDL_SwapLE16(X) (X)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	229 #define SDL_SwapLE32(X) (X)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	230 #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	231 #define SDL_SwapFloatLE(X) (X)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	232 #define SDL_SwapBE16(X) SDL_Swap16(X)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	233 #define SDL_SwapBE32(X) SDL_Swap32(X)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	234 #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	235 #define SDL_SwapFloatBE(X) SDL_SwapFloat(X)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	236 #else
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	237 #define SDL_SwapLE16(X) SDL_Swap16(X)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	238 #define SDL_SwapLE32(X) SDL_Swap32(X)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	239 #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	240 #define SDL_SwapFloatLE(X) SDL_SwapFloat(X)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	241 #define SDL_SwapBE16(X) (X)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	242 #define SDL_SwapBE32(X) (X)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	243 #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	244 #define SDL_SwapFloatBE(X) (X)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	245 #endif
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3067 diff changeset	246 /@}//Swap to native/
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	247
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	248 /* Ends C function definitions when using C++ */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	249 #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	250 /* INDENT-OFF */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	251 }
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	252 /* INDENT-ON */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	253 #endif
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	254 #include "close_code.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	255
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	256 #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	257
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	258 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

annotate include/SDL_endian.h @ 5172:ededa1ccf91c