We will now try to explain more precisely the types of modules that FreeType 2 is capable of managing.
Renderer modules manage scalable glyph images. This means transforming them, computing their bounding box, and converting them to either monochrome or anti-aliased bitmaps.
Note that FreeType 2 is capable of dealing with any kind of glyph images, as long as a renderer module is provided for it. The library comes by default with two renderers.
|
raster |
Supports the conversion of vectorial outlines
(described by
an |
|
smooth |
Supports the conversion of the same outlines to anti-aliased pixmaps (using 256 levels of gray). Note that this renderer also supports direct span generation, this is, it provides a hook into the engine so that the application can manipulate the rendering results itself, instead of letting the rasterizer fill a pixmap. See this tutorial demo file for an example. |
Font driver modules support one or more specific font formats. Here is a list with the most important ones.
|
truetype |
TrueType fonts. |