Commit 7a37d3acf5329acfe32bb3ecfe49ea23ff2bfd06
2020-01-05T13:52:03
Work around Intel driver bug with CopyTex{Sub}Image2D/DeleteTextures. Dependencies seem to be incorrectly tracked in some Intel OpenGL drivers (on macOS specifically), causing crashes in glDeleteTextures if a GL command buffer is being constructed where those textures are destinations of CopyTexImage2D/CopyTexSubImage2D. Work around this bug by flushing before texture deletion if CopyTex{Sub}Image have been called recently. The tracking is only done on a per-context rather than a per-device basis, but seems sufficient to work around the problem as identified. Tested both with new ANGLE test on affected hardware, and in WebKit's ANGLE backend for WebGL. Works around the crash reported in https://bugs.webkit.org/show_bug.cgi?id=205707 . Bug: angleproject:4267 Change-Id: I2266a5590759f6a3f19080def08710ef4b66d463 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1987932 Commit-Queue: Kenneth Russell <kbr@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>