Clear inherits the render targets from the current render pass. This
means we need to fill out the binding table after switching to meta
bindings. However, meta copies etc happen outside a render pass and
break when we try to fill in the render targets. This change fills the
render targets only for meta clear.
We leave the block pool untracked so that reads/writes to freed blocks
will get caught and do the tracking at the state pool/stream level. We
have to do a few extra gymnastics for streams because valgrind works in
terms of poitners and we work in terms of separate map and offset.
Fortunately, the users of the state pool and stream should always be using
the map pointer provided in the anv_state structure. We just have to
track, per block, the map that was used when we initially got the block.
Then we can make sure we always use that map and valgrind should stay
happy.
We now always copy the entire struct unless pData is NULL and
unconditionally write back the struct size. It's not clear this is
useful if the structs may grow over time, but it seems to be the
expected behaviour for now.
If we don't do this then recursive meta is completely broken. What happens
is that the outer meta call may change the bindings pointer and the inner
meta call will change it again and, when it exits set it back to the
default. However, the outer meta call may be relying on it being left
alone so it uses the non-meta descriptor sets instead of its own.
Previously, the GLSL_VK_SHADER macro didn't work if the shader contained
commas outside of parentheses due to the way the C preprocessor works.
This commit fixes this by making it variadic again and doing it correctly
this time.
This changes the way descriptor sets and layouts work so that we fill
out binding table contents at the time we bind descriptor sets. We
manipulate the binding table contents and sampler state in a shadow-copy
in anv_cmd_buffer. At draw time, we allocate the actual binding table
and sampler state and flush the anv_cmd_buffer copies.
This new utility, glsl_scraper.py scrapes C files for instances of the
GLSL_VK_SHADER macro, pulls out the shader source, and compiles it to
SPIR-V. The compilation is done using glslValidator. The result is then
placed into another C file as arrays of dwords that can be easiliy handed
to a Vulkan driver.
This way we can pass in a vertex shader and yet have the pipeline emit an
empty 3DSTATE_VS packet. We need this for meta because we need to trick
the compiler into not deleting our inputs but at the same time disable the
VS so that we can use a rectlist. This should go away once we actually get
SPIR-V.
