tree 350a7668e5c19e75eac6f19e2597a15d2d72b361
parent 789c940d20cdb3c590830f52148825c9fe164091
author Kaiyi Li <kaiyili@google.com> 1633367917 -0700
committer Kaiyi Li <kaiyili@google.com> 1634765405 -0700

Use immutable sampler in CompositorVk

... so that we can use Ycbcr samplers to sample composition layers in the
future. Vulkan spec requires Ycbcr samplers can only be used as
immutable sampler.

Test: run the emulator, CompositorVk_unittests

Change-Id: I721dd98b934cfd61582e4d1563df4d72e5eea375