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Package:Simple DirectMedia Layer
Simple DirectMedia Layer
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Introduction
Simple DirectMedia Layer is commonly referred to by its acronym sdl. There are two versions of the sdl libraries commonly used: sdl and sdl2. The distinction is all libraries pre-version 2.0 are sdl while post-version 2.0 are sdl2. Version in this case is important as post-2.0 release involved a major changed to the SDL code base with non-backwards compatible changes to its API.
sdl (pre-2.0) is considered outdated and new development with sdl is discouraged. Components of sdl and sdl2 cannot be intermixed.
This page covers sdl2 only.
Usage(Simple)
Applications may only require the presence of the core sdl2 library. For this, executing below should be sufficient:
root # emerge media-libs/libsdl2
Usage(Source)
Some game applications that are built from sources may also require additional SDL2 component libraries below:
- SDL2-GFX - Graphics drawing primitives library for SDL2
- SDL2-Image - Image file loading library
- SDL2-Mixer - Audio and sound mixing functionality
- SDL2-Net - Networking support
- SDL2-TTF - True Type Font handling functions
These subsystems can be installed with libsdl2 by executing the following:
root # emerge media-libs/libsdl2 media-libs/sdl2-{gfx,image,mixer,net,ttf}
Note: shell brace expansion used in emerge command to install multiple items
Further Reading
Simple DirectMedia Layer Wiki Home Page
Wikipedia - Simple DirectMedia Layer
Flare Game Engine - example of needing SDL2 source install
Lazy Foo Productions - SDL2 programming tutorial