Automatic build of mesa opengl implementations for 64-bit Windows.

Builds are linked statically to their dependencies, just place necessary dll file next to your exe and it will use it.

Download binary builds as zip archive from latest release page. It provides following builds:

• llvmpipe - software implementation of opengl using llvm jit
• osmesa - off-screen software rendering implementation using llvmpipe
• d3d12 - Collabora & Microsoft implementation of opengl using D3D12

To build locally run build.cmd batch file, make sure you have installed all necessary dependencies (see the beginning of file).