| # Multiplatform ANGLE Refactor Complete |
| |
| ANGLE's multiplatform refactoring effort ([described here] |
| (https://code.google.com/p/angleproject/wiki/MANGLE)) is now complete, paving |
| the way for additional rendering backends, allowing ANGLE to enable OpenGL ES |
| not just over Direct3D 9 and 11, but also desktop OpenGL. |
| |
| The refactoring we've done encapsulates D3D-related assumptions and API calls at |
| the renderer level, so that no D3D calls are made in the renderer-agnostic |
| portions of the codebase, and D3D-specific feature implementations won't be |
| included on non-D3D platforms. For example, the creation and maintenance of |
| CPU-side copies of texture data, which are required to enable GL-style |
| per-mip-level texture creation over D3D's entire-mipchain texture creation API, |
| is contained entirely within the D3D renderers, allowing a GL implementation to |
| avoid this complication. |
| |
| Work will now begin within ANGLE to add a desktop OpenGL renderer, and EGL |
| implementations compatible with OS X and Linux. |
| |
| # ES 3.0 Development Status |
| |
| Our ES 3.0 development branch was merged into mainline ANGLE in April 2014, but |
| ES 3.0 support is not yet complete. The majority of API functionality has been |
| implemented; features still pending include: |
| |
| * ETC2/EAC support |
| * primitive restart index |
| * drawRangeElements |
| * full GetProgramBinary support in core |
| |
| Additional work remains in the compiler, including: |
| |
| * Array .length() |
| * inf/nan detection |
| * math utility functions, rounding |
| * VertexID/InstanceID support |
| * floating point packing functions |
| * operators new in ES 3.0 |
| * name redeclaration |
| * relaxed array indexing |
| * switch statement support |
| * loop & iteration improvements |
| |
| ES 3.0 features should not be considered stable, even where implemented, and |
| some features are present only via naive implementation so far, but we welcome |
| bugs filed against this functionality, and thank all our contributors! |
