Mercurial > sdl-ios-xcode
view include/SDL_config_win32.h @ 4167:a6f635e5eaa6 SDL-1.2
Fixed bug #611
From Tim Angus 2008-08-12 11:18:06
I'm one of the maintainers of ioquake3.org, an updated version of the
Quake 3 engine. Relatively recently, we moved ioq3 to use SDL as a
replacement for 95% of the platform specific code that was there. On the
whole it's doing a great job but unfortunately since the move we've been
getting complaints about the quality of the mouse input on the Windows
platform to the point where for many the game is unplayable. Put in
other terms, the current stable SDL 1.2 is basically not fit for purpose
if you need high quality mouse input as you do in a first person shooter.
Over the weekend I decided to pull my finger out and actually figure out
what's going on. There are basically two major problems. Firstly, when
using the "windib" driver, mouse input is gathered via the WM_MOUSEMOVE
message. Googling for this indicates that often this is known to result
in "spurious" and/or "missing" mouse movement events; this is the
primary cause of the poor mouse input. The second problem is that the
"directx" driver does not work at all in combination with OpenGL meaning
that you can't use DirectInput if your application also uses OpenGL. In
other words you're locked into using the "windib" driver and its poor
mouse input.
In order to address these problems I've done the following:
* Remove WM_MOUSEMOVE based motion event generation and replace with
calls to GetCursorPos which seems much more reliable. In order to
achieve this I've moved mouse motion out into a separate function that
is called once per DIB_PumpEvents.
* Remove the restriction on the "directx" driver being inoperable in
combination with OpenGL. There is a bug for this issues that I've
hijacked to a certain extent
(http://bugzilla.libsdl.org/show_bug.cgi?id=265). I'm the first to admit
I don't really understand why this restriction is there in the first
place. The commit message for the bug fix that introduced this
restriction (r581) isn't very elaborate and I couldn't see any other bug
tracking the issue. If anyone has more information on the bug that was
avoided by r581 it would be helpful as I/someone could then look into
addressing the problem without disabling the "directx" driver.
* I've also removed the restriction on not being allowed to use
DirectInput in windowed mode. I couldn't see any reason for this, at
least not from our perspective. I have my suspicions that it'll be
something like matching up the cursor with the mouse coordinates...
* I bumped up the DirectInput API used to version 7 in order to get
access to mouse buttons 4-7. I've had to inject a little bit of the DX7
headers into SDL there as the MinGW ones aren't up to date in this respect.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Thu, 02 Apr 2009 04:43:36 +0000 |
| parents | a1b03ba2fcd0 |
| children |
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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 */ #ifndef _SDL_config_win32_h #define _SDL_config_win32_h #include "SDL_platform.h" /* This is a set of defines to configure the SDL features */ #if defined(__GNUC__) || defined(__DMC__) #define HAVE_STDINT_H 1 #elif defined(_MSC_VER) typedef signed __int8 int8_t; typedef unsigned __int8 uint8_t; typedef signed __int16 int16_t; typedef unsigned __int16 uint16_t; typedef signed __int32 int32_t; typedef unsigned __int32 uint32_t; typedef signed __int64 int64_t; typedef unsigned __int64 uint64_t; #ifndef _UINTPTR_T_DEFINED #ifdef _WIN64 typedef unsigned __int64 uintptr_t; #else typedef unsigned int uintptr_t; #endif #define _UINTPTR_T_DEFINED #endif /* Older Visual C++ headers don't have the Win64-compatible typedefs... */ #if ((_MSC_VER <= 1200) && (!defined(DWORD_PTR))) #define DWORD_PTR DWORD #endif #if ((_MSC_VER <= 1200) && (!defined(LONG_PTR))) #define LONG_PTR LONG #endif #else /* !__GNUC__ && !_MSC_VER */ typedef signed char int8_t; typedef unsigned char uint8_t; typedef signed short int16_t; typedef unsigned short uint16_t; typedef signed int int32_t; typedef unsigned int uint32_t; typedef signed long long int64_t; typedef unsigned long long uint64_t; #ifndef _SIZE_T_DEFINED_ #define _SIZE_T_DEFINED_ typedef unsigned int size_t; #endif typedef unsigned int uintptr_t; #endif /* __GNUC__ || _MSC_VER */ #define SDL_HAS_64BIT_TYPE 1 /* Enabled for SDL 1.2 (binary compatibility) */ #define HAVE_LIBC 1 #ifdef HAVE_LIBC /* Useful headers */ #define HAVE_STDIO_H 1 #define STDC_HEADERS 1 #define HAVE_STRING_H 1 #define HAVE_CTYPE_H 1 #define HAVE_MATH_H 1 #ifndef _WIN32_WCE #define HAVE_SIGNAL_H 1 #endif /* C library functions */ #define HAVE_MALLOC 1 #define HAVE_CALLOC 1 #define HAVE_REALLOC 1 #define HAVE_FREE 1 #define HAVE_ALLOCA 1 #define HAVE_QSORT 1 #define HAVE_ABS 1 #define HAVE_MEMSET 1 #define HAVE_MEMCPY 1 #define HAVE_MEMMOVE 1 #define HAVE_MEMCMP 1 #define HAVE_STRLEN 1 #define HAVE__STRREV 1 #define HAVE__STRUPR 1 #define HAVE__STRLWR 1 #define HAVE_STRCHR 1 #define HAVE_STRRCHR 1 #define HAVE_STRSTR 1 #define HAVE_ITOA 1 #define HAVE__LTOA 1 #define HAVE__ULTOA 1 #define HAVE_STRTOL 1 #define HAVE_STRTOUL 1 #define HAVE_STRTOLL 1 #define HAVE_STRTOD 1 #define HAVE_ATOI 1 #define HAVE_ATOF 1 #define HAVE_STRCMP 1 #define HAVE_STRNCMP 1 #define HAVE__STRICMP 1 #define HAVE__STRNICMP 1 #define HAVE_SSCANF 1 #else #define HAVE_STDARG_H 1 #define HAVE_STDDEF_H 1 #endif /* Enable various audio drivers */ #ifndef _WIN32_WCE #define SDL_AUDIO_DRIVER_DSOUND 1 #endif #define SDL_AUDIO_DRIVER_WAVEOUT 1 #define SDL_AUDIO_DRIVER_DISK 1 #define SDL_AUDIO_DRIVER_DUMMY 1 /* Enable various cdrom drivers */ #ifdef _WIN32_WCE #define SDL_CDROM_DISABLED 1 #else #define SDL_CDROM_WIN32 1 #endif /* Enable various input drivers */ #ifdef _WIN32_WCE #define SDL_JOYSTICK_DISABLED 1 #else #define SDL_JOYSTICK_WINMM 1 #endif /* Enable various shared object loading systems */ #define SDL_LOADSO_WIN32 1 /* Enable various threading systems */ #define SDL_THREAD_WIN32 1 /* Enable various timer systems */ #ifdef _WIN32_WCE #define SDL_TIMER_WINCE 1 #else #define SDL_TIMER_WIN32 1 #endif /* Enable various video drivers */ #ifdef _WIN32_WCE #define SDL_VIDEO_DRIVER_GAPI 1 #endif #ifndef _WIN32_WCE #define SDL_VIDEO_DRIVER_DDRAW 1 #endif #define SDL_VIDEO_DRIVER_DUMMY 1 #define SDL_VIDEO_DRIVER_WINDIB 1 /* Enable OpenGL support */ #ifndef _WIN32_WCE #define SDL_VIDEO_OPENGL 1 #define SDL_VIDEO_OPENGL_WGL 1 #endif /* Disable screensaver */ #define SDL_VIDEO_DISABLE_SCREENSAVER 1 /* Enable assembly routines (Win64 doesn't have inline asm) */ #ifndef _WIN64 #define SDL_ASSEMBLY_ROUTINES 1 #endif #endif /* _SDL_config_win32_h */