tree 16c4187498dc410c3dd13cbe8d760dfe1daffc1c
parent 3c6a6648bf035a0a8cdebf39376953bd99e06bfb
author Yahan Zhou <yahan@google.com> 1650916924 -0700
committer Yahan Zhou <yahan@google.com> 1651013976 -0700

Fix corner case for render buffer reference count

The spec leaves a lot of corner cases when deleting renderbuffer. It is
automatically detached from the current framebuffer. This does not
happen to framebuffers that are not current.

We add more granular ref counts to handle the situation when it is bound
to a framebuffer that has been detached.

https://www.khronos.org/registry/OpenGL-Refpages/es3.0/html/glDeleteRenderbuffers.xhtml

Bug: 228188569
Test: run cts -m CtsSkQPTestCases -t org.skia.skqp.SkQPRunner#UnitTest_ES2BlendWithNoTexture
Change-Id: I2b63419717cc3a3e211d9e555bae3f3932f010f5