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Sam Lantinga 0782f9be51 Fixed bug 3273 - Fix for slow video subsystem initialization when using XRandR. 
Mart?n Golini

I'm having a very slow initialization of the video subsystem that locks the window creation for about 500 ms ( tested in at least 4 different systems ). What i found is that X11_InitModes_XRandR is using XRRGetScreenResources, that explicitly ask to poll the hardware for changes. This is not really necessary since if the data is already available you can use XRRGetScreenResourcesCurrent.
I attached a tentative patch that fix this issue. With the patch there's no lock when the subsystem is initialized and the window creation is instant in my applications. The patch only uses XRRGetScreenResourcesCurrent in X11_InitModes_XRandR but it could be potentially used in X11_GetDisplayModes and X11_SetDisplayMode.
 		2017-09-05 08:24:38 -07:00
VisualC Added missing Visual Studio 2010 project for testvulkan 2017-08-28 17:28:09 -07:00
VisualC-WinRT Moved haptic source files into the proper folder 2017-08-30 09:44:38 -07:00
Xcode Added SDL_vulkan.h to the Mac OS X framework headers 2017-09-04 22:51:28 -07:00
Xcode-iOS vulkan: Initial Vulkan support! 2017-08-27 22:15:57 -04:00
acinclude Fixed bug 3481 - Configure fails to detect dynamic library support on powerpc64le 2016-11-06 20:26:48 -08:00
android-project Update Android SDK required to API level 16 2017-08-31 15:12:08 -07:00
build-scripts Make the androidbuildlibs.sh script executable 2017-08-27 23:31:31 -07:00
cmake vulkan: Include a copy of vulkan.h and vk_platform.h. 2017-08-27 23:25:12 -04:00
debian vulkan: Initial Vulkan support! 2017-08-27 22:15:57 -04:00
docs WinRT: listed VS 2017 optional-component requirements 2017-09-03 16:36:22 -04:00
include vulkan: Changed SDL_WINDOW_VULKAN value to match Tizen's fork. 2017-09-03 13:20:33 -04:00
src Fixed bug 3273 - Fix for slow video subsystem initialization when using XRandR. 2017-09-05 08:24:38 -07:00
test test: forgot to change a variable. 2017-08-29 18:25:55 -04:00
visualtest Renaming of guard header names to quiet -Wreserved-id-macro 2017-08-28 00:22:23 -07:00
.hgignore audio: Initial bits to enable audio capture support. 2016-08-01 00:18:56 -04:00
Android.mk Fixed bug 3789 - Android : small clean up 2017-08-30 14:25:01 -07:00
BUGS.txt BUGS.txt: Changed mailing list link to discourse.libsdl.org. 2017-04-01 00:05:25 -04:00
CMakeLists.txt Fixed bug 3789 - Android : small clean up 2017-08-30 14:25:01 -07:00
COPYING.txt Updated copyright for 2017 2017-01-01 18:33:28 -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 More HTTPS doc tweaks. 2017-02-16 16:59:07 -05:00
Makefile.in vulkan: Initial Vulkan support! 2017-08-27 22:15:57 -04:00
Makefile.minimal Fixed crash if initialization of EGL failed but was tried again later. 2015-06-21 17:33:46 +02:00
Makefile.pandora pandora: Fixed compiler warning about redefining SDL_REVISION. 2017-06-18 23:00:27 +02:00
Makefile.psp PSP: Added missing object for generic TLS to Makefile. 2016-02-13 17:34:14 +01:00
Makefile.wiz Pandora: Updated SDL version in Makefile. 2016-07-19 21:01:30 +02:00
README-SDL.txt More HTTPS changes in the documentation. 2017-02-16 16:52:03 -05:00
README.txt readme: correct webpage URL to use HTTPS. 2017-02-16 13:30:34 -05:00
SDL2.spec.in Fixed crash if initialization of EGL failed but was tried again later. 2015-06-21 17:33:46 +02:00
SDL2Config.cmake Fixed bug 3651 - CMake build does not install CMake package configuration 2017-08-09 19:03:10 -07:00
TODO.txt Fixed crash if initialization of EGL failed but was tried again later. 2015-06-21 17:33:46 +02:00
VisualC.html Fixed two typos in documentation. 2016-01-12 22:23:53 +01:00
WhatsNew.txt Fixed typos in 2.0.6 patch notes 2017-09-04 23:10:12 -07:00
autogen.sh Don't use pushd/popd in autogen.sh; Ubuntu's /bin/sh doesn't support it. 2016-12-26 22:58:58 -05:00
cmake_uninstall.cmake.in Fixed crash if initialization of EGL failed but was tried again later. 2015-06-21 17:33:46 +02:00
configure Fix QNX build - prioritize system EGL headers over the Khronos ones 2017-08-30 00:40:06 -07:00
configure.in Fix QNX build - prioritize system EGL headers over the Khronos ones 2017-08-30 00:40:06 -07:00
sdl2-config.cmake.in Applied Ubuntu patch bug_822210_fix_sdl2-config.cmake_whitespace.patch 2016-10-07 15:08:37 -07:00
sdl2-config.in Fixed crash if initialization of EGL failed but was tried again later. 2015-06-21 17:33:46 +02:00
sdl2.m4 Fixed bug 3429 - Update AM_PATH_SDL2() to also check for SDL2.framework 2016-09-29 16:37:08 -07:00
sdl2.pc.in Fixed crash if initialization of EGL failed but was tried again later. 2015-06-21 17:33:46 +02:00

README.txt

This file contains invisible Unicode characters!

This file contains invisible Unicode characters that may be processed differently from what appears below. If your use case is intentional and legitimate, you can safely ignore this warning. Use the Escape button to reveal hidden characters.


                         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)