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Kang Seonghoon While BMP format supports alpha channel, it is enabled only when the header is at least 56 bytes long (BITMAPV3INFOHEADER and later). For very common 40-byte-long header (BITMAPINFOHEADER) 32bpp format should be interpreted as BGRX format, but currently SDL interprets them as BGRA format and causes a significant compatibility problem as many 32bpp files use a padding byte of 0 ("transparent" in BGRA interpretation). --- I fixed this by checking to see if the alpha channel is all 0, and if so, setting it opaque. |
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build-scripts | ||
cmake | ||
debian | ||
include | ||
src | ||
test | ||
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Android.mk | ||
autogen.sh | ||
BUGS.txt | ||
CMakeLists.txt | ||
configure | ||
configure.in | ||
COPYING.txt | ||
CREDITS.txt | ||
INSTALL.txt | ||
Makefile.in | ||
Makefile.minimal | ||
Makefile.pandora | ||
Makefile.psp | ||
Makefile.wiz | ||
README-android.txt | ||
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README-directfb.txt | ||
README-gesture.txt | ||
README-hg.txt | ||
README-ios.txt | ||
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README-porting.txt | ||
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README-SDL.txt | ||
README-touch.txt | ||
README-wince.txt | ||
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sdl2-config.in | ||
sdl2.m4 | ||
sdl2.pc.in | ||
SDL2.spec.in | ||
TODO.txt | ||
VisualC.html | ||
WhatsNew.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 DirectX. It is used by video playback software, emulators, and popular games including Valve's award winning catalog and many Humble Bundle games. The current version supports Windows, Mac OS X, Linux, iOS, and Android. The code contains support for other operating systems but those are not officially supported. SDL is written in C, but works with C++ natively, and has bindings to several other languages, including C#, Python and more in progress. This library is distributed under the zlib license, which can be found in the file "COPYING.txt". The best way to learn how to use SDL is to check out the header files in the "include" subdirectory and the programs in the "test" subdirectory. The header files and test programs are well commented and always up to date. More documentation and FAQs are available online at: http://wiki.libsdl.org/ If you need help with the library, or just want to discuss SDL related issues, you can join the developers mailing list: http://www.libsdl.org/mailing-list.php Enjoy! Sam Lantinga (slouken@libsdl.org)