radv: handle implicit subpass dependencies per attachment
From the Vulkan spec 1.2.172:
"If there is no subpass dependency from VK_SUBPASS_EXTERNAL to the
first subpass that uses an attachment, then an implicit subpass
dependency exists from VK_SUBPASS_EXTERNAL to the first subpass
it is used in."
"Similarly, if there is no subpass dependency from the last subpass
that uses an attachment to VK_SUBPASS_EXTERNAL, then an implicit
subpass dependency exists from the last subpass it is used in to
VK_SUBPASS_EXTERNAL."
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9714>
2 files changed
