[dxvk] Provide way to access queue properties from device

src/d3d11/d3d11_interop.cpp

@@ -60,7 +60,7 @@ namespace dxvk {
           VkQueue*              pQueue,
           uint32_t*             pQueueFamilyIndex) {
     auto device = static_cast<D3D11Device*>(m_device)->GetDXVKDevice();
-    DxvkDeviceQueue queue = device->graphicsQueue();
+    DxvkDeviceQueue queue = device->queues().graphics;
     
     if (pQueue != nullptr)
       *pQueue = queue.queueHandle;

src/d3d11/d3d11_swapchain.cpp

@@ -330,7 +330,7 @@ namespace dxvk {
 
 
   void D3D11SwapChain::CreatePresenter() {
-    DxvkDeviceQueue graphicsQueue = m_device->graphicsQueue();
+    DxvkDeviceQueue graphicsQueue = m_device->queues().graphics;
 
     vk::PresenterDevice presenterDevice;
     presenterDevice.queueFamily   = graphicsQueue.queueFamily;

src/dxvk/dxvk_device.h

@@ -111,14 +111,23 @@ namespace dxvk {
     }
     
     /**
-     * \brief Graphics queue properties
+     * \brief Queue handles
      * 
-     * Handle and queue family index of
-     * the queue used for rendering.
-     * \returns Graphics queue info
+     * Handles and queue family indices
+     * of all known device queues.
+     * \returns Device queue infos
      */
-    DxvkDeviceQueue graphicsQueue() const {
-      return m_queues.graphics;
+    const DxvkDeviceQueueSet& queues() const {
+      return m_queues;
+    }
+
+    /**
+     * \brief Tests whether a dedicated transfer queue is available
+     * \returns \c true if an SDMA queue is supported by the device
+     */
+    bool hasDedicatedTransferQueue() const {
+      return m_queues.transfer.queueHandle
+          != m_queues.graphics.queueHandle;
     }
     
     /**