[PATCH vkd3d v5 3/5] vkd3d: Back descriptor heaps with Vulkan descriptor sets if descriptor indexing is available.

[Conor McCarthy]

March 11, 2022 8:20 PM, "Henri Verbeet" <hverbeet at gmail.com> wrote:

> This patch causes tests/texture-load-typed.shader_test to fail for me.
> VKD3D_CONFIG=virtual_heaps is a workaround.

The old implementation enforces no constraints on how many descriptor heaps are bound, but this
patch allows only one heap of each type to be bound, as per the D3D12 spec. The failing test tries to bind 3
CBV/SRV/UAV heaps. This does work in Windows at least on AMD and Intel, but we can't reasonably support it because bindings will be a mess. One option is to keep virtual heaps as the default and add an option to use Vulkan-backed heaps.