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vkd3d: Allow D3D12_SMALL_RESOURCE_PLACEMENT_ALIGNMENT only for small textures. 

Use a simple heuristic to decide if a resource is "small". The heuristic
is based on theoretical constraints for the most detailed mip level of
small resources. Those constraints are mentioned in D3D12 validation
layer errors and in the DirectX 12 Graphics samples.

Signed-off-by: Józef Kucia <jkucia@codeweavers.com>
Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Józef Kucia 2019-01-18 10:25:48 +01:00 committed by Alexandre Julliard
parent 1561c8a9c2
commit 39eb9fe5d8
1 changed files with 21 additions and 1 deletions
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22
libs/vkd3d/device.c
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@ -2076,6 +2076,7 @@ static D3D12_RESOURCE_ALLOCATION_INFO * STDMETHODCALLTYPE d3d12_device_GetResour
{
UINT64 default_alignment = D3D12_DEFAULT_RESOURCE_PLACEMENT_ALIGNMENT;
struct d3d12_device *device = impl_from_ID3D12Device(iface);
const struct vkd3d_format *format;
const D3D12_RESOURCE_DESC *desc;
bool valid = true;
@ -2118,7 +2119,26 @@ static D3D12_RESOURCE_ALLOCATION_INFO * STDMETHODCALLTYPE d3d12_device_GetResour
valid = false;
}
info->Alignment = max(info->Alignment, D3D12_SMALL_RESOURCE_PLACEMENT_ALIGNMENT);
if (valid && info->Alignment < D3D12_DEFAULT_RESOURCE_PLACEMENT_ALIGNMENT)
{
if ((format = vkd3d_format_from_d3d12_resource_desc(desc, 0)))
{
if (desc->Width * desc->Height * desc->DepthOrArraySize * format->byte_count
> D3D12_DEFAULT_RESOURCE_PLACEMENT_ALIGNMENT)
{
info->Alignment = max(info->Alignment, D3D12_DEFAULT_RESOURCE_PLACEMENT_ALIGNMENT);
}
else
{
info->Alignment = max(info->Alignment, D3D12_SMALL_RESOURCE_PLACEMENT_ALIGNMENT);
}
}
else
{
WARN("Invalid format %#x.\n", desc->Format);
valid = false;
}
}
}
if (valid && desc->Alignment % info->Alignment)