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

annotate include/SDL_endian.h @ 3485:e77a69aae239

Mason Wheeler to sdl I updated SDL, and suddenly my SDL frames stopped working. They'd "initialize" full of gibberish, and I couldn't render anything to them. After a bit of digging, I found a problem: the renderer initialization routine in my SDL frame code wasn't getting called anymore. procedure TSdlFrame.Paint; begin if SDL_SelectRenderer(FWindowID) = -1 then CreateRenderer; SDL_RenderPresent; end; function TSdlFrame.CreateRenderer: boolean; const pf: tagPIXELFORMATDESCRIPTOR = (nSize: sizeof(pf); nVersion: 1; dwFlags: PFD_DRAW_TO_WINDOW or PFD_SUPPORT_OPENGL or PFD_DOUBLEBUFFER; iPixelType: PFD_TYPE_RGBA; cColorBits: 24; cAlphaBits: 8; iLayerType: PFD_MAIN_PLANE); RENDERERS: array[TRendererType] of AnsiString = ('software', 'gdi', 'opengl', 'd3d'); var pFormat: integer; begin if (SDL_SelectRenderer(FWindowID) = 0) then begin result := true; Exit; end; if FRendererType = rtOpenGL then begin pFormat := ChoosePixelFormat(canvas.Handle, @pf); if not SetPixelFormat(canvas.Handle, pFormat, @pf) then outputDebugString(PChar(SysErrorMessage(GetLastError))); if wglCreateContext(canvas.Handle) = 0 then outputDebugString(PChar(SysErrorMessage(GetLastError))); end; if (SDL_CreateRenderer(FWindowID, SDL_RendererIndex(RENDERERS[FRendererType]), [sdlrPresentFlip3, sdlrAccelerated]) = 0) then begin SDL_ShowWindow(FWindowID); assert(SDL_SetRenderDrawColor(0, 0, 0, 255) = 0); FFlags := SDL_GetWindowFlags(FWindowID); if assigned(FOnAvailable) then FOnAvailable(self); end else outputDebugString(pChar(format('SDL_CreateRenderer failed: %s', [sdl_GetError]))); result := SDL_SelectRenderer(FWindowID) = 0; end; This is a critical issue. The Paint method gets called when the control receives a WM_PAINT message from Windows. I can't create the renderer before then, or it will fail and cause trouble. And when I do create it, it needs to be created with certain parameters. So imagine my surprise when I started debugging into the DLL and found that SDL_SelectRenderer was trying to be "helpful" by creating the renderer for me if it didn't already exist! Now not only does my initialization code not get called, I end up with the wrong renderer and so things don't render as expected when I try to use the window.

author	Sam Lantinga <slouken@libsdl.org>
date	Tue, 24 Nov 2009 04:48:12 +0000
parents	d3baf5ac4e37
children	efb79807afe1

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 /**
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? */
1474 351d757c7edd Maybe it's easier to collect the big-endian architectures. :) Sam Lantinga <slouken@libsdl.org> parents: 1469 diff changeset	43 #if defined(__hppa__) \|\| \
1475 d45aefcac017 Get Microsoft's preprocessor symbols in there Sam Lantinga <slouken@libsdl.org> parents: 1474 diff changeset	44 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	45 (defined(__MIPS__) && defined(__MISPEB__)) \|\| \
1475 d45aefcac017 Get Microsoft's preprocessor symbols in there Sam Lantinga <slouken@libsdl.org> parents: 1474 diff changeset	46 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	47 defined(__sparc__)
351d757c7edd Maybe it's easier to collect the big-endian architectures. :) Sam Lantinga <slouken@libsdl.org> parents: 1469 diff changeset	48 #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	49 #else
1354 22f39393668a Fixed build problem with SDL_string.c Sam Lantinga <slouken@libsdl.org> parents: 1353 diff changeset	50 #define SDL_BYTEORDER SDL_LIL_ENDIAN
22f39393668a Fixed build problem with SDL_string.c Sam Lantinga <slouken@libsdl.org> parents: 1353 diff changeset	51 #endif
22f39393668a Fixed build problem with SDL_string.c Sam Lantinga <slouken@libsdl.org> parents: 1353 diff changeset	52 #endif /* !SDL_BYTEORDER */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	53
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	54
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	55 #include "begin_code.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	56 /* Set up for C function definitions, even when using C++ */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	57 #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	58 /* INDENT-OFF */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	59 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	60 /* INDENT-ON */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	61 #endif
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	62
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3067 diff changeset	63 /**
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3067 diff changeset	64 * \file SDL_endian.h
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3067 diff changeset	65 *
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3067 diff changeset	66 * 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	67 * 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	68 * 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	69 * 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	70 */
1372 3e171fa5f4df Whoops Sam Lantinga <slouken@libsdl.org> parents: 1369 diff changeset	71 #if defined(__GNUC__) && defined(__i386__) && \
1368 533567cbb576 More fixes for building on BeOS Sam Lantinga <slouken@libsdl.org> parents: 1354 diff changeset	72 !(__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	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)
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 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 }
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	79 #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	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)
848 85af65457959 Avoid using kernel internal headers Sam Lantinga <slouken@libsdl.org> parents: 769 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 __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	84 return x;
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	85 }
859 6b28c91bf3d2 This works on MacOS X too. :) Sam Lantinga <slouken@libsdl.org> parents: 849 diff changeset	86 #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	87 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	88 SDL_Swap16(Uint16 x)
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	89 {
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	90 Uint16 result;
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 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__("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	93 return result;
848 85af65457959 Avoid using kernel internal headers Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	94 }
1044 d36ea7925763 Optimize also for 68020 and higher CPUs Patrice Mandin <patmandin@gmail.com> parents: 1033 diff changeset	95 #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	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)
985 cec525374267 Add m68k assembly routines for endianness conversion Patrice Mandin <patmandin@gmail.com> parents: 859 diff changeset	98 {
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	99 __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	100 return x;
985 cec525374267 Add m68k assembly routines for endianness conversion Patrice Mandin <patmandin@gmail.com> parents: 859 diff changeset	101 }
848 85af65457959 Avoid using kernel internal headers Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	102 #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	103 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	104 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	105 {
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	106 return ((x << 8) \| (x >> 8));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	107 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	108 #endif
848 85af65457959 Avoid using kernel internal headers Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	109
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	110 #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	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)
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 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__("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	115 return x;
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	116 }
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	117 #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	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)
848 85af65457959 Avoid using kernel internal headers Sam Lantinga <slouken@libsdl.org> parents: 769 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 __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	122 return x;
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	123 }
859 6b28c91bf3d2 This works on MacOS X too. :) Sam Lantinga <slouken@libsdl.org> parents: 849 diff changeset	124 #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	125 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	126 SDL_Swap32(Uint32 x)
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	127 {
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	128 Uint32 result;
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	129
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 __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	131 __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	132 __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	133 return result;
848 85af65457959 Avoid using kernel internal headers Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	134 }
1044 d36ea7925763 Optimize also for 68020 and higher CPUs Patrice Mandin <patmandin@gmail.com> parents: 1033 diff changeset	135 #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	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)
985 cec525374267 Add m68k assembly routines for endianness conversion Patrice Mandin <patmandin@gmail.com> parents: 859 diff changeset	138 {
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	139 __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	140 return x;
985 cec525374267 Add m68k assembly routines for endianness conversion Patrice Mandin <patmandin@gmail.com> parents: 859 diff changeset	141 }
848 85af65457959 Avoid using kernel internal headers Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	142 #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	143 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	144 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	145 {
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 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	147 (x >> 24));
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	148 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	149 #endif
848 85af65457959 Avoid using kernel internal headers Sam Lantinga <slouken@libsdl.org> parents: 769 diff changeset	150
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	151 #ifdef SDL_HAS_64BIT_TYPE
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	152 #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	153 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	154 SDL_Swap64(Uint64 x)
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	155 {
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	156 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	157 {
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 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	159 {
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	160 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	161 } 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	162 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	163 } 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	164 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	165 __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	166 "1"(v.s.
8cc00819c8d6 Reverted Bob's indent checkin Sam Lantinga <slouken@libsdl.org> parents: 3011 diff changeset	167 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	168 return v.u;
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 #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	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 __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	175 return x;
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	176 }
bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	177 #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	178 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	179 SDL_Swap64(Uint64 x)
849 bab227101de4 Added inline byte swapping code for other architectures Sam Lantinga <slouken@libsdl.org> parents: 848 diff changeset	180 {
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	181 Uint32 hi, lo;
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	182
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 /* 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	184 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	185 x >>= 32;
3067 bcd41b269091 Fixed bug #537 Sam Lantinga <slouken@libsdl.org> parents: 3013 diff changeset	186 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	187 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	188 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	189 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	190 return (x);
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	191 }
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	192 #endif
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	193 #else
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3067 diff changeset	194 /**
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3067 diff changeset	195 * 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	196 * 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	197 * 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	198 */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	199 #define SDL_Swap64(X) (X)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	200 #endif /* SDL_HAS_64BIT_TYPE */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	201
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	202
1984 b910bcabec26 Added SDL_SwapFloat* function/macros. Reference Bugzilla #293. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	203 static __inline__ float
b910bcabec26 Added SDL_SwapFloat* function/macros. Reference Bugzilla #293. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	204 SDL_SwapFloat(float x)
b910bcabec26 Added SDL_SwapFloat* function/macros. Reference Bugzilla #293. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	205 {
1985 8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1984 diff changeset	206 union
8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1984 diff changeset	207 {
8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1984 diff changeset	208 float f;
8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1984 diff changeset	209 Uint32 ui32;
8055185ae4ed Added source color and alpha modulation support. Sam Lantinga <slouken@libsdl.org> parents: 1984 diff changeset	210 } swapper;
1984 b910bcabec26 Added SDL_SwapFloat* function/macros. Reference Bugzilla #293. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	211 swapper.f = x;
b910bcabec26 Added SDL_SwapFloat* function/macros. Reference Bugzilla #293. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	212 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	213 return swapper.f;
b910bcabec26 Added SDL_SwapFloat* function/macros. Reference Bugzilla #293. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	214 }
b910bcabec26 Added SDL_SwapFloat* function/macros. Reference Bugzilla #293. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	215
b910bcabec26 Added SDL_SwapFloat* function/macros. Reference Bugzilla #293. Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	216
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3067 diff changeset	217 /**
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3067 diff changeset	218 * \name Swap to native
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3067 diff changeset	219 * 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	220 */
d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3067 diff changeset	221 /@{/
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	222 #if SDL_BYTEORDER == SDL_LIL_ENDIAN
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	223 #define SDL_SwapLE16(X) (X)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	224 #define SDL_SwapLE32(X) (X)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	225 #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	226 #define SDL_SwapFloatLE(X) (X)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	227 #define SDL_SwapBE16(X) SDL_Swap16(X)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	228 #define SDL_SwapBE32(X) SDL_Swap32(X)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	229 #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	230 #define SDL_SwapFloatBE(X) SDL_SwapFloat(X)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	231 #else
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	232 #define SDL_SwapLE16(X) SDL_Swap16(X)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	233 #define SDL_SwapLE32(X) SDL_Swap32(X)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	234 #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	235 #define SDL_SwapFloatLE(X) SDL_SwapFloat(X)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	236 #define SDL_SwapBE16(X) (X)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	237 #define SDL_SwapBE32(X) (X)
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	238 #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	239 #define SDL_SwapFloatBE(X) (X)
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	240 #endif
3407 d3baf5ac4e37 Partial fix for bug #859 Sam Lantinga <slouken@libsdl.org> parents: 3067 diff changeset	241 /@}//Swap to native/
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	242
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	243 /* Ends C function definitions when using C++ */
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	244 #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	245 /* INDENT-OFF */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	246 }
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	247 /* INDENT-ON */
0 74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	248 #endif
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	249 #include "close_code.h"
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	250
74212992fb08 Initial revision Sam Lantinga <slouken@lokigames.com> parents: diff changeset	251 #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	252
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	253 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

annotate include/SDL_endian.h @ 3485:e77a69aae239