Handmade Network»jstimpfle

Coding a GUI from scratch for work. This time around, I decided to start with a software rasterizer, which was a great choice. Added an OpenGL backend later. Colored + Textured Quads only. Freetype for font rasterization. A new idea was to use 1-dimensional glyph allocation for the font atlas. It's perfect if we're doing pixel-precise blitting - no 2 dimensions needed since there is no texture interpolation. This way simplifies the glyph allocation, and makes it very easy to just dynamically upload glyph data to a texture in OpenGL mode, much like a streaming vertex buffer. Haven't profiled the OpenGL backend, hopefully I can improve but 3ms/frame is bearable for now, most time probably spent waiting for uploads (single threaded).