With current ANGLE , it seems better to use EGL_SURFACE_ORIENTATION_INVERT_Y_ANGLE instead of EGL_EXPERIMENTAL_PRESENT_PATH_FAST_ANGLE if it is necessary.
Bug 1589512 Comment 13 Edit History
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With current ANGLE , it seems better to use EGL_SURFACE_ORIENTATION_INVERT_Y_ANGLE instead of EGL_EXPERIMENTAL_PRESENT_PATH_FAST_ANGLE if it is necessary. Chromium uses EGL_SURFACE_ORIENTATION_INVERT_Y_ANGLE.