This is a version of
rust-opengles bundled with the
ANGLE library for Windows. Compiling
rust-opengles-angle produces two additional DLL files libGLESv2.dll and
libEGL.dll that ensure the portable OpenGL ES support.
Currently rust-opengles-angle uses ANGLE version 1.0.0.2042 with local patches
by Mozilla (mozilla-central hg rev e9b37726c020). This complication is because
ANGLE by default does not support MinGW and Mozilla had a working version of
ANGLE with Makefile. Ultimately, Makefile.in and moz.build are removed in
order to be MPL-free and I have rolled my own Makefile. Except for this removal
and local patches (angle/angle-rust-opengles-angle-local.patch) the code
remains intact.
In theory, MinGW and ./configure && make should work. Unfortunately ANGLE uses
several header files not present in MinGW w32api headers so we need a twist: if
you ever note that some header file is missing, then you should bring it to the
separate directory and run make with DIRECTX_SDK_INCLUDES=/path/to/headers.
I have prepared a separate header package for this very reason; it couldn't be included as is due to its GNU LGPL licensing.
Every modification and addition (including Makefile) to ANGLE is licensed under
the BSD-style license at angle/LICENSE; every modification and addition to
rust-opengles is licensed under the Apache License, Version 2.0
(LICENSE-APACHE) or the MIT license (LICENSE-MIT).