[PATCH vkd3d 1/7] vkd3d: Use VK_SHARING_MODE_CONCURRENT only when queue family count > 1.

[Józef Kucia]

From: Józef Kucia

The Vulkan spec states:

If sharingMode is VK_SHARING_MODE_CONCURRENT, queueFamilyIndexCount
  must be greater than 1.

Signed-off-by: Józef Kucia 
---
 libs/vkd3d/resource.c | 17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/libs/vkd3d/resource.c b/libs/vkd3d/resource.c
index 5bb76bf0c3e0..36e470bdd0d5 100644
--- a/libs/vkd3d/resource.c
+++ b/libs/vkd3d/resource.c
@@ -536,9 +536,18 @@ HRESULT vkd3d_create_buffer(struct d3d12_device *device,
         return E_INVALIDARG;
     }

-    buffer_info.sharingMode = VK_SHARING_MODE_CONCURRENT;
-    buffer_info.queueFamilyIndexCount = device->queue_family_count;
-    buffer_info.pQueueFamilyIndices = device->queue_family_indices;
+    if (device->queue_family_count > 1)
+    {
+        buffer_info.sharingMode = VK_SHARING_MODE_CONCURRENT;
+        buffer_info.queueFamilyIndexCount = device->queue_family_count;
+        buffer_info.pQueueFamilyIndices = device->queue_family_indices;
+    }
+    else
+    {
+        buffer_info.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
+        buffer_info.queueFamilyIndexCount = 0;
+        buffer_info.pQueueFamilyIndices = NULL;
+    }

if ((vr = VK_CALL(vkCreateBuffer(device->vk_device, &buffer_info, NULL, vk_buffer))) < 0)
     {
@@ -626,7 +635,7 @@ static HRESULT vkd3d_create_image(struct d3d12_device *device,
     if (!(desc->Flags & D3D12_RESOURCE_FLAG_DENY_SHADER_RESOURCE))
         image_info.usage |= VK_IMAGE_USAGE_SAMPLED_BIT;

-    if (desc->Flags & D3D12_RESOURCE_FLAG_ALLOW_SIMULTANEOUS_ACCESS)
+    if ((desc->Flags & D3D12_RESOURCE_FLAG_ALLOW_SIMULTANEOUS_ACCESS) && device->queue_family_count > 1)
     {
         TRACE("Creating image with VK_SHARING_MODE_CONCURRENT.\n");
         image_info.sharingMode = VK_SHARING_MODE_CONCURRENT;

[Henri Verbeet]

Signed-off-by: Henri Verbeet