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Simple Directmedia Layer
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Sam Lantinga fd1d692bef Fixed bug 3368 - SDL_Blit_Slow doesn't ignore alpha values in colorkey comparison 
Simon Hug

When the SDL_Blit_Slow function compares the pixel to the color key it does so without removing the alpha component from the pixel value and the key. This is different from the optimized 32-bit blitters which create a rgb mask and apply it to both to filter the alpha out. SDL_Blit_Slow will only skip the pixels with the exact alpha value of the key instead of all pixels with the same color.

The attached test case blits a surface with a color key and prints the pixel values to the console. The third row is expected to be skipped.
 		2016-10-01 10:46:10 -07:00
VisualC audio: Removed internal SDL_audiomem.h and macros. 2016-08-05 01:44:15 -04:00
VisualC-WinRT Merge audio capture work back into the mainline. 2016-08-28 13:36:13 -04:00
Xcode Updated version to 2.0.5 in preparation for release 2016-09-28 22:24:01 -07:00
Xcode-iOS iOS: Removed unused constant in demo. 2016-09-30 23:31:24 +02:00
acinclude Fixed crash if initialization of EGL failed but was tried again later. 2015-06-21 17:33:46 +02:00
android-project Commit KEYCODE_SPACE as text input on Android 2016-07-04 10:39:32 -04:00
build-scripts emscripten-buildbot.sh: exit with an error if configure/make fail. 2016-09-06 12:18:52 -04:00
cmake Fix CMake CMAKE_REQUIRED_FLAGS handling to preserve existing CMake flags required by Emscripten toolchain. 2016-09-13 00:03:50 -07:00
debian Replaced SDL_qsort with public domain code from PDCLib: http://pdclib.e43.eu/ 2016-02-15 03:16:46 -05:00
docs Updated Linux notes on building with Mir and Wayland support. 2016-09-29 12:04:07 -04:00
include Fixed bug 3336 - Failure to build with MinGW-w64 2016-10-01 10:28:00 -07:00
premake Enable SDL_LoadObject on iOS 8+ and tvOS. 2016-09-25 15:02:06 -03:00
src Fixed bug 3368 - SDL_Blit_Slow doesn't ignore alpha values in colorkey comparison 2016-10-01 10:46:10 -07:00
test Fixed compiling of three test programs with C++. 2016-09-21 23:06:38 +02:00
visualtest Fixed crash if initialization of EGL failed but was tried again later. 2015-06-21 17:33:46 +02:00
.hgignore audio: Initial bits to enable audio capture support. 2016-08-01 00:18:56 -04:00
Android.mk Fixed crash if initialization of EGL failed but was tried again later. 2015-06-21 17:33:46 +02:00
BUGS.txt BUGS.txt: Bugzilla supports SSL; changed link to https:// ... 2016-08-01 13:36:43 -04:00
CMakeLists.txt Updated version to 2.0.5 in preparation for release 2016-09-28 22:24:01 -07:00
COPYING.txt Updated copyright to 2016 2016-01-02 10:10:34 -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 Fixed crash if initialization of EGL failed but was tried again later. 2015-06-21 17:33:46 +02:00
Makefile.in wayland: Build own version of core protocol 2016-06-23 18:39:05 +08:00
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 referring to no more existing atomic source file in Makefile. 2016-07-19 21:01:13 +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 Another commit to test revision control. 2016-03-08 20:26:26 -05:00
README.txt Fixed crash if initialization of EGL failed but was tried again later. 2015-06-21 17:33:46 +02:00
SDL2.spec.in Fixed crash if initialization of EGL failed but was tried again later. 2015-06-21 17:33:46 +02:00
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 Updated some header comments and iOS documentation to better clarify high-dpi / retina support and screen-coordinate sizes versus pixel sizes. 2015-12-31 21:16:43 -04:00
autogen.sh Fix running autogen.sh out-of-tree 2016-10-01 10:39:03 -07:00
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 Updated version to 2.0.5 in preparation for release 2016-09-28 22:24:01 -07:00
configure.in Updated version to 2.0.5 in preparation for release 2016-09-28 22:24:01 -07:00
sdl2-config.cmake.in Fixed typo in sdl2-config.cmake.in (thanks, Rafal!). 2015-12-28 23:29:11 -05:00
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 

                         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)