We were completely ignoring the primitive-restart case in the
index-rewrite logic used to emulate triangle fans. Unfortunately, this
case is way more complicated than a regular index rewrite:
- we need to skip all primitive-restart entries when turning the triangle
fan into a triangle list, which implies serializing the index buffer
rewrite procedure (at least I didn't find any clever way to parallelize
things)
- the number of triangles can no longer be extrapolated from the number
of indices in the original index buffer, thus forcing us to lower
direct indexed draws into indirect draws and patching the indexCount
value when the new index buffer is forged
Reviewed-by: Jesse Natalie <jenatali@microsoft.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16971>
Unfortunately it's not as simple as passing the indirect draw count
buffer to ExecuteIndirect. The compute job that populate the execute
buffer also needs to know the number of entries that need to be
patched. Instead of transitioning the indirect count buffer from
GENERIC_READ to INDIRECT_ARGUMENT we just keep at as a read-only
resource and copy the draw_count value to the exec buffer in the
compute job.
Acked-by: Jesse Natalie <jenatali@microsoft.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15914>
We don't need the first_vertex argument when turning non-indexed
triangle-fan draws into indexed triangle-list ones, the firstVertex
argument can simply be passed as a vertexOffset.
Reviewed-by: Jesse Natalie <jenatali@microsoft.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15912>
These include either dzn_nir.h or dzn_internal.h which already includes
this header.
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Louis-Francis Ratté-Boulianne <lfrb@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15790>
This is Dozen, the Vulkan on DirectX 12 driver. Not to be confused with
DirectEggs.
This is an early prototype, and not meant to be upstreamed as-is.
Co-Authored-by: Boris Brezillon <boris.brezillon@collabora.com>
Co-Authored-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Co-Authored-by: Louis-Francis Ratté-Boulianne <lfrb@collabora.com>
Co-Authored-by: Jesse Natalie <jenatali@microsoft.com>
Reviewed-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Acked-by: Jason Ekstrand <jason.ekstrand@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14766>
