A C programming exercise for creating a pixelwise 2D rendering engine. All primitives are built up upon the manipulation of raw pixel buffer (also "video buffer", "framebuffer", or a simple array of bits & bytes in ARGB8888 format). The idea was to understand how early 80s, 90s computer graphics and game developer practitioners were able to create drawings, animation and space using just a direct access to a video buffer in RAM (without having advanced GPU's shader APIs). The sources are supposed to be a first approximation of it. However, using an assembly instead of 'high-level' C might be even more preferable but the information that is left on this matter is miserable.
Fig 1. port conceptual model
(the examples below may use early interations of port-engine API comparing to what is currently provided in port.h. Please, refer to the source file. It lists all the methods available for manipulating Window object at its very beginning)
Example 1. Draw line primitives
Example 2. Interpolation test (1 logical pixel becomes 64 of physical)
Example 3. Logical resize test
.gif)
Example 4. Pixel animation
Example 5. This is what you can get applying math and drawLine() primitive
