a21a227a87
Joe Thompson With Direct Input device (MOMO Steering Wheel w/FF) with SDL 2.0.3, SDL_HapticOpenFromJoystick() would fail. (Can't set exclusive mode) Now with 2.0.4 rc1, SDL_HapticOpenFromJoystick() succeeds but the the returned SDL_Haptic* cannot be used. Calls to SDL_HapticNewEffect() fail with "Haptic error Unable to create effect" If SDL_HapticOpen() is used instead of HapticOpenFromJoystick(), the device is usable. Calls to HapticNewEffect() succeed with the exact same parameters as the previous failing call. I have attached a proposed patch for this issue. When using SDL_HapticOpenFromJoystick(), the original code did not (re)enumerate the axes. This returned a new haptic device with 0 axes. Later, when a new effect is created, SDL_SYS_SetDirection() would set the flags to include DIEFF_SPHERICAL, regardless of what the caller actually set. (see Line 566 in SDL_dinputhaptic.c). This would cause the SDL_HapticNewEffect() to fail (or interpret the coordinates incorreclty.) The patch moves the call to IDirectInputDevice8_EnumObjects() outside of the if() block so that the axes are (re)enumerated for the new haptic device. Note: For steering wheels it is common for the joystick to have multiple axes (ie steering, throttle, brake), but the haptic portion of the joystick usually only applies to steering. |
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VisualC | ||
VisualC-WinRT | ||
Xcode | ||
Xcode-iOS | ||
acinclude | ||
android-project | ||
build-scripts | ||
cmake | ||
debian | ||
docs | ||
include | ||
premake | ||
src | ||
test | ||
visualtest | ||
.hgignore | ||
Android.mk | ||
BUGS.txt | ||
CMakeLists.txt | ||
COPYING.txt | ||
CREDITS.txt | ||
INSTALL.txt | ||
Makefile.in | ||
Makefile.minimal | ||
Makefile.pandora | ||
Makefile.psp | ||
Makefile.wiz | ||
README-SDL.txt | ||
README.txt | ||
SDL2.spec.in | ||
TODO.txt | ||
VisualC.html | ||
WhatsNew.txt | ||
autogen.sh | ||
cmake_uninstall.cmake.in | ||
configure | ||
configure.in | ||
sdl2-config.cmake.in | ||
sdl2-config.in | ||
sdl2.m4 | ||
sdl2.pc.in |
README.txt
Simple DirectMedia Layer (SDL) Version 2.0 --- http://www.libsdl.org/ Simple DirectMedia Layer is a cross-platform development library designed to provide low level access to audio, keyboard, mouse, joystick, and graphics hardware via OpenGL and Direct3D. It is used by video playback software, emulators, and popular games including Valve's award winning catalog and many Humble Bundle games. More extensive documentation is available in the docs directory, starting with README.md Enjoy! Sam Lantinga (slouken@libsdl.org)