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Simple Directmedia Layer
fdd945f2af
Previously we only checked for at least one button or key and at least the X and Y absolute axes, but this has both false positives and false negatives. Graphics tablets, trackpads and touchscreens all have buttons and absolute X and Y axes, but we don't want to detect those as joysticks. On normal Linux systems ordinary users do not have access to these device nodes, but members of the 'input' group do. Conversely, some game controllers only have digital buttons and no analogue axes (the Nintendo Wiimote is an example), and some have axes and no buttons (steering wheels or flight simulator rudders might not have buttons). Use the more elaborate heuristic factored out from SDL's udev code path to handle these cases. In an ideal world we could use exactly the same heuristic as udev's input_id builtin, but that isn't under a suitable license for inclusion in SDL, so we have to use a parallel implementation of something vaguely similar. Signed-off-by: Simon McVittie <smcv@collabora.com> |
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| acinclude | ||
| android-project | ||
| android-project-ant | ||
| build-scripts | ||
| cmake | ||
| debian | ||
| docs | ||
| include | ||
| src | ||
| test | ||
| VisualC | ||
| VisualC-WinRT | ||
| visualtest | ||
| wayland-protocols | ||
| Xcode | ||
| Xcode-iOS | ||
| .hgignore | ||
| Android.mk | ||
| autogen.sh | ||
| BUGS.txt | ||
| cmake_uninstall.cmake.in | ||
| CMakeLists.txt | ||
| configure | ||
| configure.ac | ||
| COPYING.txt | ||
| CREDITS.txt | ||
| INSTALL.txt | ||
| Makefile.in | ||
| Makefile.minimal | ||
| Makefile.os2 | ||
| Makefile.pandora | ||
| Makefile.psp | ||
| Makefile.wiz | ||
| README-SDL.txt | ||
| README.txt | ||
| sdl2-config-version.cmake.in | ||
| sdl2-config.cmake.in | ||
| sdl2-config.in | ||
| sdl2.m4 | ||
| sdl2.pc.in | ||
| SDL2.spec.in | ||
| SDL2Config.cmake | ||
| TODO.txt | ||
| VisualC.html | ||
| WhatsNew.txt | ||
Simple DirectMedia Layer
(SDL)
Version 2.0
---
https://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)