Commit Graph

8 Commits

Author SHA1 Message Date
Chip Davis
a171087180 MSL: Support "raw" buffer input in tessellation evaluation shaders.
Using vertex-style stage input is complex, and it doesn't support
nesting of structures or arrays. By using raw buffer input instead, we
get this support "for free," and everything becomes much simpler.
Arguably, this is the way I should've done this in the first place.

Eventually, I'd like to make this the default, and then remove the
option altogether. (And I still need to do that with
`multi_patch_workgroup`...)

Should help fix 66 tests in the Vulkan CTS, under the following trees:

 - `dEQP-VK.pipeline.*.interface_matching.*`
 - `dEQP-VK.tessellation.user_defined_io.*`
 - `dEQP-VK.clipping.user_defined.*`
2022-10-18 14:58:59 -07:00
Hans-Kristian Arntzen
0aedc7d128 Roll dependencies. 2022-05-27 13:28:25 +02:00
Hans-Kristian Arntzen
be333e0cab MSL: Move float2->3 TessCoord fixup to a better location. 2022-01-05 13:32:17 +01:00
Nikita Fediuchin
2acf0e73dd Fix gl_TessCoord arguments presence. Update reference shaders.
* Added check for "gl_TessCoord" presence in the entry point arguments.
* Updated reference tessellation evaluation shaders.
2021-12-20 22:58:21 +02:00
Hans-Kristian Arntzen
82a77e534e MSL: Use proper array for quad tess levels.
We need to handle loads from array as well, so the float4 hack doesn't
work.
2021-04-23 14:12:00 +02:00
Hans-Kristian Arntzen
0997e81118 MSL: Sort builtin IO block members by builtin type.
Ensures consistent block matching.
2021-04-19 12:10:49 +02:00
Chip Davis
f3c0942d10 MSL: Use vectors for the tessellation level builtins in tese shaders.
The tessellation levels in Metal are stored as a densely-packed array of
half-precision floating point values. But, stage-in attributes in Metal
have to have offsets and strides aligned to a multiple of four, so we
can't add them individually. Luckily for us, the arrays have lengths
less than 4. So, let's use vectors for them!

Triangles get a single attribute with a `float4`, where the outer levels
are in `.xyz` and the inner levels are in `.w`. The arrays are unpacked
as though we had added the elements individually. Quads get two: a
`float4` with the outer levels and a `float2` with the inner levels.
Further, since vectors can be indexed as arrays, there's no need to
unpack them in this case.

This also saves on precious vertex attributes. Before, we were using up
to 6 of them. Now we need two at most.
2019-02-22 12:18:51 -06:00
Chip Davis
41d9424233 MSL: Add an option to set the tessellation domain origin.
This is intended to be used to support `VK_KHR_maintenance2`'s
tessellation domain origin feature. If `tess_domain_origin_lower_left`
is `true`, the `v` coordinate will be inverted with respect to the
domain. Additionally, in `Triangles` mode, the `v` and `w` coordinates
will be swapped. This is because the winding order is interpreted
differently in lower-left mode.
2019-02-18 14:25:42 -06:00