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vkd3d: Deal with Map out parameter being NULL.

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It is possible to map a resource, but not disclose the VA to caller.
This is used for WriteToSubresource.

Signed-off-by: Hans-Kristian Arntzen <post@arntzen-software.no>
Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Hans-Kristian Arntzen 2019-10-01 15:53:35 +02:00 committed by Alexandre Julliard
parent 0282b2643c
commit 19b673923b
1 changed files with 8 additions and 4 deletions
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12
libs/vkd3d/resource.c
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@ -423,7 +423,8 @@ static HRESULT d3d12_heap_map(struct d3d12_heap *heap, uint64_t offset,
if ((rc = pthread_mutex_lock(&heap->mutex)))
{
ERR("Failed to lock mutex, error %d.\n", rc);
*data = NULL;
if (data)
*data = NULL;
return hresult_from_errno(rc);
}
@ -456,13 +457,15 @@ static HRESULT d3d12_heap_map(struct d3d12_heap *heap, uint64_t offset,
if (hr == S_OK)
{
assert(heap->map_ptr);
*data = (BYTE *)heap->map_ptr + offset;
if (data)
*data = (BYTE *)heap->map_ptr + offset;
++resource->map_count;
}
else
{
assert(!heap->map_ptr);
*data = NULL;
if (data)
*data = NULL;
}
pthread_mutex_unlock(&heap->mutex);
@ -1235,7 +1238,8 @@ static HRESULT STDMETHODCALLTYPE d3d12_resource_Map(ID3D12Resource *iface, UINT
if (FAILED(hr = d3d12_heap_map(resource->heap, resource->heap_offset, resource, data)))
WARN("Failed to map resource %p, hr %#x.\n", resource, hr);
TRACE("Returning pointer %p.\n", *data);
if (data)
TRACE("Returning pointer %p.\n", *data);
return hr;
}