We were accidentally using the ISL_FORMAT_R32_FLOAT_X8X24_TYPELESS
format, which is NOT what we use. We just store R32_FLOAT depth.
fixes Piglit's texwrap GL_ARB_depth_buffer_float
chaining to a new batch reuses create_batch(), but we don't need to do
the work of pinning BOs we inherit from a previous batch...when that is
actually part of the same execbuf invocation.
instead, just flag it when setting primary_batch_size = 0, in
iris_batch_reset
this is more obviously correct. I think the two end up being the same
in practice, since this is in the alloc_from_cache case, and presumably
bo from the bucket has bo->size == bucket->size, and bo_size also is
bucket->size...
still. better to do the obvious thing.
brw_bufmgr already does it this way.
otherwise, get results may check q->map->snapshots_landed...before our
commands to initialize it to false have actually executed...so it'd get
some random garbage from the BO...
the passthrough shader doesn't need a real program string ID - that's
basically used for ARB programs indicating total program source code
changes, or other pre-baked uniform changes, etc...none of which a
passthrough shader has...so we don't need a unique identifier to
distinguish them. We want to use a consistent value so we find
existing passthrough shaders in the cache.
If no TCS is provided, create a "passthrough" TCS that will take the
default values set in the API as constants and pass to the TES, along
with any other inputs it expects. The code to create the NIR shader
is the same as in i965.
Tested with
./piglit run -t 'tess' quick_shader r
and fixed a dozen crashes from that list.
not sure why this is labeled const, I'm pretty sure we are taking the
reference and owning this, so there's no particular reason we can't
change it. it certainly seems to be working for non-compute. and,
freedreno's ir3_shader.c seems to do this as well. still...gross :/
The backend compiler expects the gl_TessLevel* variables to be mapped
as inputs instead of system values. Use the new PIPE_CAP to get this
behavior from GLSL compiler.
Tested with:
tests/spec/arb_tessellation_shader/execution/vs-tcs-tes-tessinner-tessouter-inputs-quads.shader_test
