Mercurial > sdl-ios-xcode
view include/SDL_platform.h @ 3496:78fc8ea578b2
Joe 2009-11-23 21:31:10 PST
If type is ::SDL_HAPTIC_CARTESIAN, direction is encoded by three positions
367 * (X axis, Y axis and Z axis (with 3 axes)). ::SDL_HAPTIC_CARTESIAN
uses
368 * the first three \c dir parameters. The cardinal directions would
be:
369 * - North: 0,-1, 0
370 * - East: -1, 0, 0
371 * - South: 0, 1, 0
372 * - West: 1, 0, 0
typedef struct SDL_HapticDirection
{
Uint8 type; /**< The type of encoding. */
Uint16 dir[3]; /**< The encoded direction. */
} SDL_HapticDirection;
An unsigned int can't store negative values and I don't see an alternate way to
encode them in the docs or source. The best I have been able to come up with is
using a negative magnitude for the effect but this will only get me 2 of the 4
quadrants in the plane for 2d effects. I looked at the win32 and linux
implementations and I believe is is safe to use signed ints in the direction
struct. I am unfamiliar with the darwin haptics API so I don't know if it is
safe.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Fri, 27 Nov 2009 19:29:27 +0000 |
parents | d3baf5ac4e37 |
children | f7b03b6838cb |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2009 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA Sam Lantinga slouken@libsdl.org */ /** * \file SDL_platform.h * * Try to get a standard set of platform defines. */ #ifndef _SDL_platform_h #define _SDL_platform_h #if defined(_AIX) #undef __AIX__ #define __AIX__ 1 #endif #if defined(__BEOS__) #undef __BEOS__ #define __BEOS__ 1 #endif #if defined(__HAIKU__) #undef __HAIKU__ #define __HAIKU__ 1 #endif #if defined(bsdi) || defined(__bsdi) || defined(__bsdi__) #undef __BSDI__ #define __BSDI__ 1 #endif #if defined(_arch_dreamcast) #undef __DREAMCAST__ #define __DREAMCAST__ 1 #endif #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__) #undef __FREEBSD__ #define __FREEBSD__ 1 #endif #if defined(hpux) || defined(__hpux) || defined(__hpux__) #undef __HPUX__ #define __HPUX__ 1 #endif #if defined(sgi) || defined(__sgi) || defined(__sgi__) || defined(_SGI_SOURCE) #undef __IRIX__ #define __IRIX__ 1 #endif #if defined(linux) || defined(__linux) || defined(__linux__) #undef __LINUX__ #define __LINUX__ 1 #endif #if defined(__APPLE__) /* lets us know what version of Mac OS X we're compiling on */ #include "AvailabilityMacros.h" #ifdef MAC_OS_X_VERSION_10_3 #include "TargetConditionals.h" /* this header is in 10.3 or later */ #if TARGET_OS_IPHONE /* if compiling for iPhone */ #undef __IPHONEOS__ #define __IPHONEOS__ 1 #undef __MACOSX__ #else /* if not compiling for iPhone */ #undef __MACOSX__ #define __MACOSX__ 1 #endif /* TARGET_OS_IPHONE */ #else /* if earlier verion of Mac OS X than version 10.3 */ #undef __MACOSX__ #define __MACOSX__ 1 #endif #endif /* defined(__APPLE__) */ #if defined(__NetBSD__) #undef __NETBSD__ #define __NETBSD__ 1 #endif #if defined(__OpenBSD__) #undef __OPENBSD__ #define __OPENBSD__ 1 #endif #if defined(__OS2__) #undef __OS2__ #define __OS2__ 1 #endif #if defined(osf) || defined(__osf) || defined(__osf__) || defined(_OSF_SOURCE) #undef __OSF__ #define __OSF__ 1 #endif #if defined(__QNXNTO__) #undef __QNXNTO__ #define __QNXNTO__ 1 #endif #if defined(riscos) || defined(__riscos) || defined(__riscos__) #undef __RISCOS__ #define __RISCOS__ 1 #endif #if defined(__SVR4) #undef __SOLARIS__ #define __SOLARIS__ 1 #endif #if defined(WIN32) || defined(_WIN32) #undef __WIN32__ #define __WIN32__ 1 #endif #if defined(__NDS__) #undef __NINTENDODS__ #define __NINTENDODS__ 1 #endif #include "begin_code.h" /* Set up for C function definitions, even when using C++ */ #ifdef __cplusplus /* *INDENT-OFF* */ extern "C" { /* *INDENT-ON* */ #endif /** * \brief Gets the name of the platform. */ extern DECLSPEC const char * SDLCALL SDL_GetPlatform (void); /* Ends C function definitions when using C++ */ #ifdef __cplusplus /* *INDENT-OFF* */ } /* *INDENT-ON* */ #endif #include "close_code.h" #endif /* _SDL_platform_h */ /* vi: set ts=4 sw=4 expandtab: */