d3d12: Don't suballocate TBO buffers
Reviewed-by: Sil Vilerino <sivileri@microsoft.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14933>
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@ -147,6 +147,14 @@ init_buffer(struct d3d12_screen *screen,
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default:
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unreachable("Invalid pipe usage");
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}
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/* We can't suballocate buffers that might be bound as a sampler view, *only*
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* because in the case of R32G32B32 formats (12 bytes per pixel), it's not possible
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* to guarantee the offset will be divisible.
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*/
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if (templ->bind & PIPE_BIND_SAMPLER_VIEW)
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bufmgr = screen->cache_bufmgr;
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buf_desc.alignment = D3D12_DEFAULT_RESOURCE_PLACEMENT_ALIGNMENT;
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res->dxgi_format = DXGI_FORMAT_UNKNOWN;
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buf = bufmgr->create_buffer(bufmgr, templ->width0, &buf_desc);
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