Author :
Nathan Zabriskie
Date :
2022-04-01 11:48:58
Hash :9d486a85 Message :GL: Unbind textures from FBO after calls to frameBufferTexture2D
OOPR canvas uncovered an Nvidia driver bug in which binding a texture
level > 0 to a framebuffer and then later binding a renderbuffer to
the same FBO causes the FBO to be marked as having an incomplete
attachment. This CL expands UnbindResources() in BlitGL.cpp to unbind
textures in addition to RBOs and adds new calls to unbind in functions
that call framebufferTexture2D.
Also adds a GL workaround--alwaysUnbindFramebufferTexture2D--
that forces FramebufferGL to first unbind any existing attachments
using framebufferTexture2D before attaching a new render buffer.
Bug: angleproject:5536
Change-Id: I46c115b3895f8fccb251dbf4531d5c1bd4705ebc
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3527465
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Vasiliy Telezhnikov <vasilyt@chromium.org>
Reviewed-by: Jonah Ryan-Davis <jonahr@google.com>
Commit-Queue: Jonah Ryan-Davis <jonahr@google.com>