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Simple Directmedia Layer
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Joan Bruguera 9e6249fa54 wayland: Avoid spurious key repeats when not pumping events 
Previous to this commit, key repeats events were typically generated when
pumping events, based on the time of when the events are pumped. However,
if an application doesn't call `SDL_PumpEvents` for some seconds, this time
can be multiple seconds in the future compared to the actual key up event time,
and generates key repeats even if a key was pressed only for an instant.

In practice, this can happen when the user presses a key which causes the
application to do something without pumping events (e.g. load a level).
In Crispy Doom & PrBoom+, when the user presses the key bound to "Restart
level/demo", the game doesn't pump events during the "screen melt" effect,
and the level is restarted multiple times due to spurious repeats.

To fix this, if the key up event is among the events to be pumped, we generate
the key repeats there, since in the Wayland callback we receive the time when
the key up event happened. Otherwise, we know no key up event happened and we
can generate as many repeats as necessary after pumping.

Signed-off-by: Joan Bruguera <joanbrugueram@gmail.com>
 		2022-01-08 14:10:22 -08:00
.github Update os2.yml 2022-01-03 21:55:10 -05:00
VisualC fixes to visual test MSVC project files. 2021-12-21 20:12:20 +03:00
VisualC-WinRT Use WGI instead of XInput for Windows 10 UWP apps 2021-11-27 10:24:32 -08:00
Xcode Updated to version 2.0.20 for release 2022-01-07 18:29:40 -08:00
Xcode-iOS Updated iOS build instructions 2021-11-30 12:19:26 -08:00
acinclude libtool upgrade to 2.4.6 - 18/n: SDL customizations 2021-12-01 01:55:40 +03:00
android-project Fixed crash on Windows Subsystem for Android, which doesn't have a USB manager. 2021-12-28 17:30:36 -08:00
android-project-ant Added the old ant Android build project structure 2017-10-28 12:11:25 -07:00
build-scripts updates to config.guess and config.sub from mainstream. 2022-01-08 23:00:32 +03:00
cmake cmake: Do a more thorough test for the old bcm Raspberry Pi libraries. 2022-01-05 21:02:38 -05:00
debian Updated to version 2.0.20 for release 2022-01-07 18:29:40 -08:00
docs Added a step necessary for running on a real device 2021-11-30 21:25:40 -08:00
include Added the hint SDL_HINT_RENDER_LINE_METHOD to select the line rendering method 2022-01-08 11:36:52 -08:00
src wayland: Avoid spurious key repeats when not pumping events 2022-01-08 14:10:22 -08:00
test updates to os/2 build 2022-01-08 22:35:02 +03:00
visualtest remove all unnecessary stuff from visualtest configury. 2021-12-21 20:01:02 +03:00
wayland-protocols wayland: Add support for text-input-unstable-v3 2021-07-29 14:43:46 -07:00
.gitignore testsurround: Add surround sound channel tester 2021-10-30 21:26:03 -07:00
Android.mk mark Android.mk as non-executable 2021-11-12 12:55:28 +03:00
BUGS.txt Cleaned up a few more Bugzilla mentions. 2021-02-12 14:46:49 -05:00
CMakeLists.txt cmake: Split SDL2-static and SDL2main into their own target exports 2022-01-08 09:50:14 -08:00
CREDITS.txt Fixed crash if initialization of EGL failed but was tried again later. 2015-06-21 17:33:46 +02:00
INSTALL.txt development list has moved to forum 2021-06-01 16:49:13 -07:00
LICENSE.txt Updated copyright for 2022 2022-01-03 09:40:21 -08:00
Makefile.in Install SDL_hidapi.h 2021-11-08 20:35:56 -08:00
Makefile.minimal build libSDL2_test too with Makefile.minimal 2021-11-14 01:10:32 +03:00
Makefile.os2 updates to os/2 build 2022-01-08 22:35:02 +03:00
Makefile.pandora more fixes to standalone makefiles. 2021-11-13 21:56:20 +03:00
Makefile.psp updated Makefile.psp and SDL_config_psp.h 2022-01-08 11:55:10 +03:00
Makefile.wiz more fixes to standalone makefiles. 2021-11-13 21:56:20 +03:00
README-SDL.txt More HTTPS changes in the documentation. 2017-02-16 16:52:03 -05:00
README.md Update and rename README.txt to README.md 2021-03-20 18:46:37 -04:00
SDL2.spec.in license: Fixed references to COPYING.txt that are now LICENSE.txt. 2021-02-18 11:07:26 -05:00
SDL2Config.cmake cmake: Split SDL2-static and SDL2main into their own target exports 2022-01-08 09:50:14 -08:00
TODO.txt Fixed up legacy MoinMoin URLs at wiki.libsdl.org 2021-04-01 12:20:33 -04:00
WhatsNew.txt Document SDL_HINT_RENDER_LINE_METHOD in the release notes 2022-01-08 12:42:36 -08:00
autogen.sh bump minimum required autoconf version and revise autogen.sh 2021-04-14 23:20:40 +03:00
cmake_uninstall.cmake.in Fixed bug 3867 - Can't find install_manifest.txt when running 'uninstall' target 2017-10-12 08:44:45 -07:00
configure Updated to version 2.0.20 for release 2022-01-07 18:29:40 -08:00
configure.ac Updated to version 2.0.20 for release 2022-01-07 18:29:40 -08:00
sdl2-config-version.cmake.in cmake: Forgot to add this file to revision control. 2020-02-25 14:52:03 -05:00
sdl2-config.cmake.in sdl2-config.cmake.in: Make SDL2::SDL2 work with MinGW, fixes #3665 2021-07-08 14:55:33 -07:00
sdl2-config.in build: Don't duplicate Libs in Libs.private in pkg-config file 2020-04-12 13:24:36 +01:00
sdl2.m4 acinclude & sdl2.m4 updates: 2020-12-22 17:00:28 +03:00
sdl2.pc.in rename PKG_CONFIG_LIBS_PRIV to PKGCONFIG_LIBS_PRIV 2021-04-14 21:40:50 +03:00

README.md

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)