More compute work

compute.cpp

@@ -64,6 +64,19 @@ class HelloVkCompute
 		return true;
 	}
 
+	// Determine if the chosen physical device is suitable for our application.
+	bool isDeviceSuitable(VkPhysicalDevice device) {
+		VkPhysicalDeviceProperties deviceProperties;
+		VkPhysicalDeviceFeatures deviceFeatures;
+		vkGetPhysicalDeviceProperties(device, &deviceProperties);
+		vkGetPhysicalDeviceFeatures(device, &deviceFeatures);
+
+		std::cout << "Checking if device: " << deviceProperties.deviceName << " (id " << deviceProperties.deviceID << ") is suitable" << std::endl;
+
+		return deviceFeatures.geometryShader;
+		
+	}
+
 	// Set up our debug report callback to get information back from the validation layers.
 	void setupDebugCallback() {
 		if (!enableValidationLayers) return;
@@ -151,6 +164,21 @@ class HelloVkCompute
 			throw std::runtime_error("Failed to find a suitable device!");
 		}
 	}
+
+	void createLogicalDevice() {
+		uint32_t queueFamilyPropertiesCount = 0;
+		vkGetPhysicalDeviceQueueFamilyProperties(physicalDevice, &queueFamilyPropertiesCount, nullptr);
+
+		std::vector<VkQueueFamilyProperties> queueFamilyProperties(queueFamilyPropertiesCount);
+
+		vkGetPhysicalDeviceQueueFamilyProperties(physicalDevice, &queueFamilyPropertiesCount, queueFamilyProperties.data());
+
+		for(auto queueFamProp : queueFamilyProperties) {
+			if(queueFamProp.queueFlags & (VK_QUEUE_COMPUTE_BIT)) {
+				std::cout << "Found queue with compute flag" << std::endl;
+			}
+		}
+	}
 public:
 	// our debug callback function, just prints the message from the Validation layer to stderr
 	static VKAPI_ATTR VkBool32 VKAPI_CALL debugCallback( VkDebugReportFlagsEXT flags,
@@ -164,6 +192,7 @@ public:
 	void run() {
 		initVulkan();
 		pickDevice();
+		createLogicalDevice();
 	}
 
 };