JANGLE is a Java library that translates OpenGL ES API calls to one of the hardware-supported APIs available for that platform. It provides translation from OpenGL ES 2.0, 3.0 and 3.1 to Vulkan, desktop OpenGL, OpenGL ES, Direct3D 9, and Direct3D 11.
JANGLE is the integration of two main components: ANGLE (hence JANGLE's name) and Android's Java EGL and OpenGL ES bindings.
JANGLE supports 64-bit Windows, Mac OS X and Linux platforms.
JANGLE is intended to be used for offscreen rendering, i.e. to "pbuffer" surfaces, and GPGPU.
| Direct3D 9 | Direct3D 11 | Desktop GL | GL ES | Vulkan | Metal | |
|---|---|---|---|---|---|---|
| OpenGL ES 2.0 | complete | complete | complete | complete | complete | in progress |
| OpenGL ES 3.0 | complete | complete | complete | complete | ||
| OpenGL ES 3.1 | in progress | complete | complete | in progress | ||
| OpenGL ES 3.2 | in progress | in progress | in progress |
| Direct3D 9 | Direct3D 11 | Desktop GL | GL ES | Vulkan | Metal | |
|---|---|---|---|---|---|---|
| Windows | complete | complete | complete | complete | complete | |
| Linux | complete | complete | ||||
| Mac OS X | complete | in progress |
| Pbuffer | Pixmap | Window | |
|---|---|---|---|
| Windows | yes | no | AWT Component |
| Linux | yes | no | AWT Component |
| Mac OS X | yes | no | no |
Some clues. The BUILD.gn and other Chromium build infrastructure files are a red herring; those are inherited from the parent ANGLE project and preserved only to ease merging from upstream. The main build file for JANGLE is CMakeLists.txt.
The closest thing to build instructions at the moment is the script that the continuous integration servers run.
More to come.