示例#1
0
        /// <summary>
        ///     Initializes the specified device.
        /// </summary>
        /// <param name="graphicsProfiles">The graphics profiles.</param>
        /// <param name="deviceCreationFlags">The device creation flags.</param>
        /// <param name="windowHandle">The window handle.</param>
        private unsafe void InitializePlatformDevice(GraphicsProfile[] graphicsProfiles, DeviceCreationFlags deviceCreationFlags, object windowHandle)
        {
            if (nativeDevice != Device.Null)
            {
                // Destroy previous device
                ReleaseDevice();
            }

            rendererName = Adapter.Description;

            PhysicalDeviceProperties physicalDeviceProperties;

            NativePhysicalDevice.GetProperties(out physicalDeviceProperties);
            ConstantBufferDataPlacementAlignment = (int)physicalDeviceProperties.Limits.MinUniformBufferOffsetAlignment;

            RequestedProfile = graphicsProfiles.Last();

            var queueProperties = NativePhysicalDevice.QueueFamilyProperties;

            // Command lists are thread-safe and execute deferred
            IsDeferred = true;

            // TODO VULKAN
            // Create Vulkan device based on profile
            uint queuePriorities = 0;
            var  queueCreateInfo = new DeviceQueueCreateInfo
            {
                StructureType    = StructureType.DeviceQueueCreateInfo,
                QueueFamilyIndex = 0,
                QueueCount       = 1,
                QueuePriorities  = new IntPtr(&queuePriorities)
            };

            var enabledFeature = new PhysicalDeviceFeatures
            {
                FillModeNonSolid   = true,
                ShaderClipDistance = true,
                ShaderCullDistance = true,
                SamplerAnisotropy  = true,
                DepthClamp         = true,
            };

            var extensionProperties     = NativePhysicalDevice.GetDeviceExtensionProperties();
            var availableExtensionNames = new List <string>();
            var desiredExtensionNames   = new List <string>();

            for (int index = 0; index < extensionProperties.Length; index++)
            {
                var namePointer = new IntPtr(Interop.Fixed(ref extensionProperties[index].ExtensionName));
                var name        = Marshal.PtrToStringAnsi(namePointer);
                availableExtensionNames.Add(name);
            }

            desiredExtensionNames.Add("VK_KHR_swapchain");
            if (!availableExtensionNames.Contains("VK_KHR_swapchain"))
            {
                throw new InvalidOperationException();
            }

            if (availableExtensionNames.Contains("VK_EXT_debug_marker") && IsDebugMode)
            {
                desiredExtensionNames.Add("VK_EXT_debug_marker");
                IsProfilingSupported = true;
            }

            var enabledExtensionNames = desiredExtensionNames.Select(Marshal.StringToHGlobalAnsi).ToArray();

            try
            {
                var deviceCreateInfo = new DeviceCreateInfo
                {
                    StructureType         = StructureType.DeviceCreateInfo,
                    QueueCreateInfoCount  = 1,
                    QueueCreateInfos      = new IntPtr(&queueCreateInfo),
                    EnabledExtensionCount = (uint)enabledExtensionNames.Length,
                    EnabledExtensionNames = enabledExtensionNames.Length > 0 ? new IntPtr(Interop.Fixed(enabledExtensionNames)) : IntPtr.Zero,
                    EnabledFeatures       = new IntPtr(&enabledFeature)
                };

                nativeDevice = NativePhysicalDevice.CreateDevice(ref deviceCreateInfo);
            }
            finally
            {
                foreach (var enabledExtensionName in enabledExtensionNames)
                {
                    Marshal.FreeHGlobal(enabledExtensionName);
                }
            }

            NativeCommandQueue = nativeDevice.GetQueue(0, 0);

            //// Prepare copy command list (start it closed, so that every new use start with a Reset)
            var commandPoolCreateInfo = new CommandPoolCreateInfo
            {
                StructureType    = StructureType.CommandPoolCreateInfo,
                QueueFamilyIndex = 0, //device.NativeCommandQueue.FamilyIndex
                Flags            = CommandPoolCreateFlags.ResetCommandBuffer
            };

            NativeCopyCommandPool = NativeDevice.CreateCommandPool(ref commandPoolCreateInfo);

            var commandBufferAllocationInfo = new CommandBufferAllocateInfo
            {
                StructureType      = StructureType.CommandBufferAllocateInfo,
                Level              = CommandBufferLevel.Primary,
                CommandPool        = NativeCopyCommandPool,
                CommandBufferCount = 1
            };
            CommandBuffer nativeCommandBuffer;

            NativeDevice.AllocateCommandBuffers(ref commandBufferAllocationInfo, &nativeCommandBuffer);
            NativeCopyCommandBuffer = nativeCommandBuffer;

            DescriptorPools = new HeapPool(this);

            nativeResourceCollector       = new NativeResourceCollector(this);
            graphicsResourceLinkCollector = new GraphicsResourceLinkCollector(this);

            EmptyTexelBuffer = Buffer.Typed.New(this, 1, PixelFormat.R32G32B32A32_Float);
        }