Commit 651378b2237bac4af445fa05c4d92d98fc519dfc
2020-05-14T20:44:54
Support OES_texture_{half_}float on ES 3.0 without these extensions. Emulate the LUMINANCE, ALPHA and LUMINANCE_ALPHA formats with GL_RED/GL_RG textures on platforms that don't support the OES_texture_{half_}float extensions. Fix a preexisting bug in TextureGL's luminance/alpha emulation where it would use desktop GL functionality on GLES. This change makes WebKit on iOS pass WebGL's conformance/extensions/oes-texture-{half-}float tests per https://bugs.webkit.org/show_bug.cgi?id=210524 . Bug: angleproject:4636 Change-Id: I6c158058e4b170b16ece578a3930c230de16a9ca Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2203283 Reviewed-by: Geoff Lang <geofflang@chromium.org> Reviewed-by: Jonah Ryan-Davis <jonahr@google.com> Commit-Queue: Kenneth Russell <kbr@chromium.org>