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Simple Directmedia Layer
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Sam Lantinga d2676c2985 Fixed bug 2924 - SDL_CreateRGBSurface[From] versions that take SDL_PIXELFORMAT enum 
Daniel Gibson

Currently, SDL_CreateRGBSurface() and SDL_CreateRGBSurfaceFrom() take Uint32 masks for RGBA to "describe" the Pixelformat of the surface.
Internally those value are only used to map to one of the SDL_PIXELFORMAT_* enum values that are used for further processing.

I think it would be both handy and more efficient to be able to specify SDL_PIXELFORMAT_* yourself without using SDL_PixelFormatEnumToMasks() to create masks first, so I implemented functions that do that:
SDL_CreateRGBSurfaceWithFormat() and SDL_CreateRGBSurfaceWithFormatFrom() which are like the versions without "WithFormat" but instead of taking 4 Uint32s for R/G/B/A masks, they take one for a SDL_PIXELFORMAT_* enum value.

Together with https://bugzilla.libsdl.org/show_bug.cgi?id=2923 creating a SDL_Surface* from RGBA data (e.g. from stb_image)  is as easy as
  surf = SDL_SDL_CreateRGBSurfaceWithFormat(0, w, h, bppToUse*8, SDL_PIXELFORMAT_RGBA32);
 		2016-10-07 17:04:58 -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 Android: Fixed compile error. 2016-10-02 22:32:50 +02:00
build-scripts Fixed bug 3276 - build-scripts/showrev.sh prints the tip, which isn't useful if you're on a different -# branch, or just not sync'd to the tip. 2016-10-01 12:52:55 -07:00
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 2924 - SDL_CreateRGBSurface[From] versions that take SDL_PIXELFORMAT enum 2016-10-07 17:04:58 -07:00
premake Fixed bug 3262 - Premake scripts are not compatible with "Genie" (premake fork) 2016-10-01 12:56:28 -07:00
src Fixed bug 2924 - SDL_CreateRGBSurface[From] versions that take SDL_PIXELFORMAT enum 2016-10-07 17:04:58 -07:00
test Modified the custom cursor test to be able to load BMP files as cursors 2016-10-04 04:08:02 -07:00
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 Fixed setting the version info in the shared library when using CMake 2016-10-03 03:42:10 -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 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 

                         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)