Stop using brw_compiler to lower the final binding table indices for
surface access. This is done by simply not setting the
'prog_data->binding_table.*_start' fields. Then make the driver
perform this lowering.
This is a better place to perfom the binding table assignments, since
the driver has more information and will also later consume those
assignments to upload resources.
This also prepares us for two changes: use ibc without having to
implement binding table logic there; and remove unused entries from
the binding table.
Since the `block` field in brw_ubo_range now refers to the final
binding table index, we need to adjust it before using to index
shs->constbuf.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
In st_nir_lower_uniforms_to_ubo() all UBO access in the shader have
its index incremented to open room for uniforms in constbuf0. So if
we use UBOs, we always need to include the extra binding entry in the
table.
To avoid doing this checks both when compiling the shader and when
assigning binding tables, store the num_cbufs in iris_compiled_shader.
Fixes a bunch of tests from Piglit and CTS that use UBOs but don't use
uniforms or system values. Note that some tests fitting this criteria
were passing because the UBOs were moved to be push
constants (avoiding the problem).
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
dead since my program cache API rework. we could still use it for one
function, but it's so trivial to pass the size, that it's probably not
worth the extra code
This exposes iris_upload_shader() without having to bind it, which will
be useful for precompiles. It also lets us examine the old programs and
flag dirty bits at a higher level, rather than cramming all that
knowledge into the cache layer.
we borrow the approach from anv rather than i965, as it works better
with pre-baked state that needs to contain scratch BO addresses
fixes a bunch of varying packing tests
3DSTATE_CONSTANT_* looks at prog_data->ubo_ranges. We were getting
saved by iris_set_constant_buffers() usually happening when changing
programs (as they usually change uniforms too), but with the clear
shader that doesn't use uniforms, we weren't getting one and were
leaving push constants enabled, screwing things up.
Also clean up a bit of a mess left by the hacks - we were missing
bindings in the VS/FS/CS case, among other issues...
some of them had typos, didn't say 'authors or copyright holders',
or other mistakes. This is now https://opensource.org/licenses/MIT
text, formatted consistently.
