GFXprim

Library Core

Library core contains all basic data structures and functions that forms the glue which holds the GFXprim libraries together.

The most important data structure is a Context which describes in-memory pixmap which is used extensively in all parts of the library.

Core also contains generated code for basic pixel manipulations such as GetPixel and PutPixel as well as Blits implementation.

Library Core is a place to implement common functinonality that is used from the rest of the GFXprim modules, for example the Debug layer or Progress callback.

Table 1. Main Core library parts
Context	Describes in-memory pixmap
Basic types	Types for size, lenght, pixel and color
Pixel types	Pixel types handling and interface
GetPixel and PutPixel	Macros and functions to get and put pixels
Blits	Blits (copies) a rectangular area from one context to another as well as simple pixel format conversions
Progress Callback	Progress callback passed to all filters and loaders
Debug layer	Library debug layer
Common macros	Common macros and semi-internal interface
Environment variables	Environment variables