dcd17f5473
This fixes rounding errors with coordinate scaling and gives more flexibility in the presentation, as well as making it easy to maintain device independent resolution as windows move between different pixel density displays. By default when a renderer is created, it will match the window size so window coordinates and render coordinates are 1-1. Mouse and touch events are no longer filtered to change their coordinates, instead you can call SDL_ConvertEventToRenderCoordinates() to explicitly map event coordinates into the rendering viewport. SDL_RenderWindowToLogical() and SDL_RenderLogicalToWindow() have been renamed SDL_RenderCoordinatesFromWindow() and SDL_RenderCoordinatesToWindow() and take floating point coordinates in both directions. The viewport, clipping state, and scale for render targets are now persistent and will remain set whenever they are active.
Simple DirectMedia Layer
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.
SDL officially supports Windows, macOS, Linux, iOS, and Android. Support for other platforms may be found in the source code.
SDL is written in C, works natively with C++, and there are bindings available for several other languages, including C# and Python.
This library is distributed under the zlib license, which can be found in the file "LICENSE.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 the wiki
- Android
- CMake
- DynAPI
- Emscripten
- GDK
- Git
- iOS
- Linux
- macOS
- Supported Platforms
- Porting information
- PSP
- PS2
- Raspberry Pi
- Touch
- Versions
- Windows
- WinRT
- PSVita
- Nokia N-Gage
If you need help with the library, or just want to discuss SDL related issues, you can join the SDL Discourse, which can be used as a web forum or a mailing list, at your preference.
If you want to report bugs or contribute patches, please submit them to our bug tracker
Enjoy!
Sam Lantinga mailto:slouken@libsdl.org