Commit c1af9abfce7862cd76013d13c6259679f3860d05
2019-08-28T14:35:32
Add support for overriding internal format for D3D11 texture EGLImages Add an optional EGL_D3D11_TEXTURE_FORMAT_ANGLE attribute that is the GL internal format to use for EGLImage being created. This will be used for RGB emulation of swap chain texture backed WebGL contexts in Chrome when they have alpha:false set. Without RGB emulation it is possible to observe side-effects of the underlying swap chain being RGBA such as reading/writing the alpha channel, BlitFramebuffer working/not working when expected, etc. Also document creating EGLImages from D3D11 textures in the existing EGL_ANGLE_d3d_texture_client_buffer extension along with RGB emulation. Bug: chromium:699566, chromium:939657 Change-Id: I4931cb7bdc46e9bc6debd56b79ecc10ea27bd78b Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1777099 Reviewed-by: Geoff Lang <geofflang@chromium.org> Commit-Queue: Sunny Sachanandani <sunnyps@chromium.org>