Hash :
43163491
Author :
Date :
2020-09-22T11:45:06
Vulkan: Unresolve depth/stencil MSRTT attachments Using the same shader that unresolves color, this change allows depth/stencil to be unresolved as well. In turn, this allows the depth and stencil loadOp/storeOp of the implicit multisampled image associated with a multisampled-render-to-texture renderbuffer to be set to DONT_CARE. Stencil unresolve depends on VK_EXT_shader_stencil_export. In the absence of this extension, the stencil aspect is not unresolved and must continue to use loadOp=LOAD and storeOp=STORE. This is not ideal, but the expected use-case of depth/stencil MSRTT renderbuffers is that they get invalidated, so that load and store wouldn't happen in practice. Bug: angleproject:4836 Change-Id: I9939d1e15e10fa8ed285acdd6fe6edb42c59054f Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2427049 Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Tim Van Patten <timvp@google.com> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>