island-org / gpulib

GpuLib

GpuLib is a public domain C library that uses 65 modern OpenGL AZDO functions to draw 3D geometry, post-process textures and compute arrays of numbers on GPU.

The contract:

• SDL2, Linux and Windows (Visual Studio 2015) only. Doesn't target macOS, WebGL or OpenGL ES.
• No multithreaded or asynchronous CPU <-> GPU interactions. No barriers or sync points except for glFinish calls.
• Not all modern OpenGL extensions are used, only those which are supported on low-end hardware and latest Mesa.

Naming convention:

• buf: Buffer
• tex: Texture
• pix: Pixel
• img: Image
• cbm: Cubemap
• msi: Multisample Image
• cpi: Compressed Image
• smp: Sampler
• pro: Program Object
• ppo: Pipeline Program Object
• fbo: Framebuffer Object
• xfb: Transform Feedback Object

Special thanks to Nicolas @nlguillemot and Andreas @ands for answering my OpenGL questions and Micha @vurtun for suggestions on how to improve the library!