private static bool ExtensionsSupported(IntPtr physDevice)
{
uint extn_cnt = 0;
vkEnumerateDeviceExtensionProperties(physDevice, null, &extn_cnt, null);
var availExtns_ptr = new ManagedPtrArray <VkExtensionProperties>(extn_cnt);
vkEnumerateDeviceExtensionProperties(physDevice, null, &extn_cnt, availExtns_ptr);
var availExtns = availExtns_ptr.Value;
int avail_extns = requiredDeviceExtns.Length;
for (int i = 0; i < availExtns.Length; i++)
fixed(byte *b_p = availExtns[i].extensionName)
{
var b_p_str = Encoding.ASCII.GetString(b_p, VkExtensionProperties.extensionName_len);
b_p_str = b_p_str.Substring(0, b_p_str.IndexOf('\0'));
if (requiredDeviceExtns.Contains(b_p_str))
{
avail_extns--;
}
int pos = 0;
for (; pos < optionalDeviceExtns.Length; pos++)
{
if (optionalDeviceExtns[pos] == b_p_str)
{
optionalExtn_avail[pos] = true;
break;
}
}
}
return(avail_extns == 0);
}
public static void Init()
{
optionalExtn_avail = new bool[optionalDeviceExtns.Length];
Console.BackgroundColor = ConsoleColor.Black;
Console.ForegroundColor = ConsoleColor.White;
Window = new GameWindow(AppName);
fixed(IntPtr *instancePtr = &instanceHndl)
fixed(IntPtr * surfacePtr = &surfaceHndl)
{
VkResult res;
var instLayers = new List <string>();
var instExtns = new List <string>();
var devExtns = new List <string>();
uint glfwExtnCnt = 0;
var glfwExtns = glfwGetRequiredInstanceExtensions(&glfwExtnCnt);
for (int i = 0; i < glfwExtnCnt; i++)
{
instExtns.Add(Marshal.PtrToStringAnsi(glfwExtns[i]));
}
instExtns.Add(VkKhrGetPhysicalDeviceProperties2ExtensionName);
if (EnableValidation)
{
instLayers.Add("VK_LAYER_KHRONOS_validation");
instExtns.Add(VkExtDebugUtilsExtensionName);
}
var layers = stackalloc IntPtr[instLayers.Count];
for (int i = 0; i < instLayers.Count; i++)
{
layers[i] = Marshal.StringToHGlobalAnsi(instLayers[i]);
}
var extns = stackalloc IntPtr[instExtns.Count];
for (int i = 0; i < instExtns.Count; i++)
{
extns[i] = Marshal.StringToHGlobalAnsi(instExtns[i]);
}
{
var appInfo =
new VkApplicationInfo()
{
sType = VkStructureType.StructureTypeApplicationInfo,
pApplicationName = AppName,
pEngineName = EngineName,
apiVersion = VkApiVersion12,
applicationVersion = 1,
engineVersion = 1,
pNext = IntPtr.Zero
};
var appInfo_ptr = appInfo.Pointer();
var instCreatInfo = new VkInstanceCreateInfo()
{
sType = VkStructureType.StructureTypeInstanceCreateInfo,
pApplicationInfo = appInfo_ptr,
};
instCreatInfo.ppEnabledLayerNames = layers;
instCreatInfo.enabledLayerCount = (uint)instLayers.Count;
instCreatInfo.ppEnabledExtensionNames = extns;
instCreatInfo.enabledExtensionCount = (uint)instExtns.Count;
var instCreatInfo_ptr = instCreatInfo.Pointer();
//register instance create debug message handler
debugCreatInfo = new VkDebugUtilsMessengerCreateInfoEXT()
{
sType = VkStructureType.StructureTypeDebugUtilsMessengerCreateInfoExt,
messageSeverity = VkDebugUtilsMessageSeverityFlagsEXT.DebugUtilsMessageSeverityErrorBitExt | VkDebugUtilsMessageSeverityFlagsEXT.DebugUtilsMessageSeverityWarningBitExt | VkDebugUtilsMessageSeverityFlagsEXT.DebugUtilsMessageSeverityVerboseBitExt | VkDebugUtilsMessageSeverityFlagsEXT.DebugUtilsMessageSeverityInfoBitExt,
messageType = VkDebugUtilsMessageTypeFlagsEXT.DebugUtilsMessageTypeGeneralBitExt | VkDebugUtilsMessageTypeFlagsEXT.DebugUtilsMessageTypePerformanceBitExt | VkDebugUtilsMessageTypeFlagsEXT.DebugUtilsMessageTypeValidationBitExt,
pfnUserCallback = DebugCallback
};
var debugCreatInfo_ptr = debugCreatInfo.Pointer();
if (EnableValidation)
{
instCreatInfo.pNext = debugCreatInfo_ptr;
}
res = vkCreateInstance(instCreatInfo_ptr, null, instancePtr);
if (res != VkResult.Success)
{
throw new Exception("Failed to create instance.");
}
}
if (EnableValidation)
{
SetupDebugMessengers(instanceHndl);
var debugCreatInfo_ptr = debugCreatInfo.Pointer();
fixed(IntPtr *dbg_ptr = &debugMessenger)
res = CreateDebugUtilsMessengerEXT(instanceHndl, debugCreatInfo_ptr, IntPtr.Zero, dbg_ptr);
if (res != VkResult.Success)
{
throw new Exception("Failed to register debug callback.");
}
}
res = Window.CreateSurface(instanceHndl, surfacePtr);
if (res != VkResult.Success)
{
throw new Exception("Failed to create surface.");
}
uint devCount = 0;
vkEnumeratePhysicalDevices(instanceHndl, &devCount, null);
if (devCount == 0)
{
throw new Exception("Failed to find Vulkan compatible devices.");
}
var devices = new IntPtr[devCount];
fixed(IntPtr *devicesPtr = devices)
vkEnumeratePhysicalDevices(instanceHndl, &devCount, devicesPtr);
var ratedDevices = new List <(uint, IntPtr)>();
for (int i = 0; i < devices.Length; i++)
{
//rate each device
ratedDevices.Add((RateDevice(devices[i]), devices[i]));
}
var orderedDevices = ratedDevices.OrderByDescending(a => a.Item1)
.Select(a => a.Item2)
.ToArray();
DeviceInformation = new DeviceInfo[orderedDevices.Length];
DeviceInformation[0] = new DeviceInfo()
{
PhysicalDevice = orderedDevices[0]
};
//TODO for now just choose the first device
{
//allocate queues for primary device
uint graphicsFamily = ~0u;
uint computeFamily = ~0u;
uint transferFamily = ~0u;
uint presentFamily = ~0u;
uint qfam_cnt = 0;
vkGetPhysicalDeviceQueueFamilyProperties(orderedDevices[0], &qfam_cnt, null);
var qFams_ptr = new ManagedPtrArray <VkQueueFamilyProperties>(qfam_cnt);
vkGetPhysicalDeviceQueueFamilyProperties(orderedDevices[0], &qfam_cnt, qFams_ptr);
var qFams = qFams_ptr.Value;
uint qFamIdx = 0;
foreach (var qFam in qFams)
{
bool presentSupport = false;
vkGetPhysicalDeviceSurfaceSupportKHR(orderedDevices[0], qFamIdx, surfaceHndl, &presentSupport);
if ((qFam.queueFlags & VkQueueFlags.QueueGraphicsBit) != 0 && graphicsFamily == ~0u)
{
graphicsFamily = qFamIdx;
if (presentSupport)
{
presentFamily = qFamIdx;
}
qFamIdx++;
continue;
}
if ((qFam.queueFlags & VkQueueFlags.QueueComputeBit) != 0 && computeFamily == ~0u)
{
computeFamily = qFamIdx;
if ((qFam.queueFlags & VkQueueFlags.QueueTransferBit) != 0)
{
transferFamily = qFamIdx;
}
qFamIdx++;
continue;
}
if ((qFam.queueFlags & VkQueueFlags.QueueTransferBit) != 0)
{
transferFamily = qFamIdx;
}
if (graphicsFamily != ~0u && computeFamily != ~0u && transferFamily != ~0u && presentFamily != ~0u)
{
break;
}
qFamIdx++;
}
if (presentFamily == ~0u)
{
throw new Exception("Separate present queue support hasn't been implemented.");
}
var max_q_priority = stackalloc float[] { 1.0f };
var dual_graph_q_priority = stackalloc float[] { 1.0f };
var triple_graph_q_priority = stackalloc float[] { 1.0f, 1.0f, 1.0f };
VkDeviceQueueCreateInfo graphics_qCreatInfo = new VkDeviceQueueCreateInfo()
{
sType = VkStructureType.StructureTypeDeviceQueueCreateInfo,
queueFamilyIndex = graphicsFamily,
queueCount = 1,
pQueuePriorities = max_q_priority
};
VkDeviceQueueCreateInfo compute_qCreatInfo = new VkDeviceQueueCreateInfo
{
sType = VkStructureType.StructureTypeDeviceQueueCreateInfo,
queueFamilyIndex = computeFamily,
queueCount = 1,
pQueuePriorities = max_q_priority
};
VkDeviceQueueCreateInfo transfer_qCreatInfo = new VkDeviceQueueCreateInfo();
if (transferFamily != graphicsFamily)
{
transfer_qCreatInfo.sType = VkStructureType.StructureTypeDeviceQueueCreateInfo;
transfer_qCreatInfo.queueFamilyIndex = transferFamily;
transfer_qCreatInfo.queueCount = 1;
transfer_qCreatInfo.pQueuePriorities = max_q_priority;
}
else
{
graphics_qCreatInfo.queueCount = 2;
graphics_qCreatInfo.pQueuePriorities = dual_graph_q_priority;
}
var qCreatInfos = new VkDeviceQueueCreateInfo[3];
qCreatInfos[0] = graphics_qCreatInfo;
qCreatInfos[1] = compute_qCreatInfo;
if (transferFamily != graphicsFamily)
{
qCreatInfos[2] = transfer_qCreatInfo;
}
DeviceInformation[0].GraphicsFamily = graphicsFamily;
DeviceInformation[0].ComputeFamily = computeFamily;
DeviceInformation[0].TransferFamily = transferFamily;
DeviceInformation[0].PresentFamily = presentFamily;
VkPhysicalDeviceFeatures devFeats = new VkPhysicalDeviceFeatures()
{
multiDrawIndirect = true,
drawIndirectFirstInstance = true,
fullDrawIndexUint32 = true,
tessellationShader = true,
fragmentStoresAndAtomics = true,
vertexPipelineStoresAndAtomics = true,
robustBufferAccess = EnableValidation,
shaderInt16 = true,
samplerAnisotropy = true,
fillModeNonSolid = true,
largePoints = true,
};
var devFeats11 = new VkPhysicalDeviceVulkan11Features()
{
sType = VkStructureType.StructureTypePhysicalDeviceVulkan11Features,
shaderDrawParameters = true,
//storageBuffer16BitAccess = true,
//uniformAndStorageBuffer16BitAccess = true,
//storagePushConstant16 = true,
};
var devFeats11_ptr = devFeats11.Pointer();
/*
* var depthStenc = new VkPhysicalDeviceSeparateDepthStencilLayoutsFeatures()
* {
* sType = VkStructureType.StructureTypePhysicalDeviceSeparateDepthStencilLayoutsFeatures,
* separateDepthStencilLayouts = true,
* pNext = devFeats11_ptr
* };
* var depthStenc_ptr = depthStenc.Pointer();
*
* var timelineSems = new VkPhysicalDeviceTimelineSemaphoreFeatures()
* {
* sType = VkStructureType.StructureTypePhysicalDeviceTimelineSemaphoreFeatures,
* timelineSemaphore = true,
* pNext = depthStenc_ptr,
* };
* var timelineSems_ptr = timelineSems.Pointer();
*
* var indirectCnt = new VkPhysicalDeviceShaderFloat16Int8Features()
* {
* sType = VkStructureType.StructureTypePhysicalDeviceShaderFloat16Int8Features,
* shaderFloat16 = true,
* shaderInt8 = true,
* pNext = timelineSems_ptr,
* };
* var indirectCnt_ptr = indirectCnt.Pointer();
*
* var uboLayout = new VkPhysicalDeviceUniformBufferStandardLayoutFeatures()
* {
* sType = VkStructureType.StructureTypePhysicalDeviceUniformBufferStandardLayoutFeatures,
* uniformBufferStandardLayout = true,
* pNext = indirectCnt_ptr
* };
* var uboLayout_ptr = uboLayout.Pointer();
*
* var storageByte = new VkPhysicalDevice8BitStorageFeatures()
* {
* sType = VkStructureType.StructureTypePhysicalDevice8bitStorageFeatures,
* storageBuffer8BitAccess = true,
* uniformAndStorageBuffer8BitAccess = true,
* pNext = uboLayout_ptr
* };
* var storageByte_ptr = storageByte.Pointer();
* var descIndexing = new VkPhysicalDeviceDescriptorIndexingFeatures()
* {
* sType = VkStructureType.StructureTypePhysicalDeviceDescriptorIndexingFeatures,
* descriptorBindingSampledImageUpdateAfterBind = true,
* descriptorBindingStorageBufferUpdateAfterBind = true,
* descriptorBindingStorageImageUpdateAfterBind = true,
* descriptorBindingStorageTexelBufferUpdateAfterBind = true,
* descriptorBindingUniformBufferUpdateAfterBind = true,
* descriptorBindingUniformTexelBufferUpdateAfterBind = true,
* descriptorBindingUpdateUnusedWhilePending = true,
* descriptorBindingPartiallyBound = true,
* shaderStorageTexelBufferArrayDynamicIndexing = true,
* pNext = storageByte_ptr,
* };
* var descIndexing_ptr = descIndexing.Pointer();*/
//var drawIndirectCount = new VkDrawIndirecCount
var devFeats12 = new VkPhysicalDeviceVulkan12Features()
{
sType = VkStructureType.StructureTypePhysicalDeviceVulkan12Features,
separateDepthStencilLayouts = true,
timelineSemaphore = true,
drawIndirectCount = true,
shaderFloat16 = true,
shaderInt8 = true,
uniformBufferStandardLayout = true,
storageBuffer8BitAccess = true,
uniformAndStorageBuffer8BitAccess = true,
descriptorIndexing = true,
descriptorBindingSampledImageUpdateAfterBind = true,
descriptorBindingStorageBufferUpdateAfterBind = true,
descriptorBindingStorageImageUpdateAfterBind = true,
descriptorBindingStorageTexelBufferUpdateAfterBind = true,
descriptorBindingUniformBufferUpdateAfterBind = true,
descriptorBindingUniformTexelBufferUpdateAfterBind = true,
descriptorBindingUpdateUnusedWhilePending = true,
descriptorBindingPartiallyBound = true,
shaderStorageTexelBufferArrayDynamicIndexing = true,
shaderStorageBufferArrayNonUniformIndexing = true,
runtimeDescriptorArray = true,
descriptorBindingVariableDescriptorCount = true,
pNext = devFeats11_ptr
};
var devFeats12_ptr = devFeats12.Pointer();
devExtns.AddRange(requiredDeviceExtns);
for (int i = 0; i < optionalExtn_avail.Length; i++)
{
if (optionalExtn_avail[i])
{
devExtns.Add(optionalDeviceExtns[i]);
}
}
var devExtns_ptr = stackalloc IntPtr[devExtns.Count];
for (int i = 0; i < devExtns.Count; i++)
{
devExtns_ptr[i] = Marshal.StringToHGlobalAnsi(devExtns[i]);
}
var qCreatInfos_ptr = qCreatInfos.Pointer();
var devFeats_ptr = devFeats.Pointer();
var devCreatInfo = new VkDeviceCreateInfo()
{
sType = VkStructureType.StructureTypeDeviceCreateInfo,
queueCreateInfoCount = (uint)(transferFamily != graphicsFamily ? 3 : 2),
enabledExtensionCount = (uint)devExtns.Count,
ppEnabledExtensionNames = devExtns_ptr,
enabledLayerCount = (uint)instLayers.Count,
ppEnabledLayerNames = layers,
pEnabledFeatures = devFeats_ptr,
pQueueCreateInfos = qCreatInfos_ptr,
pNext = devFeats12_ptr
};
var devCreatInfo_ptr = devCreatInfo.Pointer();
IntPtr deviceHndl = IntPtr.Zero;
res = vkCreateDevice(orderedDevices[0], devCreatInfo_ptr, null, &deviceHndl);
if (res != VkResult.Success)
{
throw new Exception("Failed to create logical device.");
}
DeviceInformation[0].Device = deviceHndl;
//Setup memory allocator
var allocCreatInfo = new VmaAllocatorCreateInfo()
{
physicalDevice = DeviceInformation[0].PhysicalDevice,
device = DeviceInformation[0].Device
};
var allocCreatInfo_ptr = allocCreatInfo.Pointer();
fixed(IntPtr *vma_alloc_ptr = &DeviceInformation[0].vmaAllocator)
res = vmaCreateAllocator(allocCreatInfo_ptr, vma_alloc_ptr);
if (res != VkResult.Success)
{
throw new Exception("Failed to initialize allocator.");
}
IntPtr graph_q_hndl = IntPtr.Zero;
IntPtr trans_q_hndl = IntPtr.Zero;
IntPtr comp_q_hndl = IntPtr.Zero;
vkGetDeviceQueue(DeviceInformation[0].Device, graphicsFamily, 0, &graph_q_hndl);
vkGetDeviceQueue(DeviceInformation[0].Device, computeFamily, 0, &comp_q_hndl);
if (transferFamily != graphicsFamily)
{
vkGetDeviceQueue(DeviceInformation[0].Device, transferFamily, 0, &trans_q_hndl);
}
else
{
vkGetDeviceQueue(DeviceInformation[0].Device, graphicsFamily, 1, &trans_q_hndl);
}
DeviceInformation[0].GraphicsQueue = new GpuQueue(CommandQueueKind.Graphics, graph_q_hndl, graphicsFamily, 0);
DeviceInformation[0].TransferQueue = new GpuQueue(CommandQueueKind.Transfer, trans_q_hndl, transferFamily, 0);
DeviceInformation[0].ComputeQueue = new GpuQueue(CommandQueueKind.Compute, comp_q_hndl, computeFamily, 0);
var queue_indices = new List <uint>();
if (!queue_indices.Contains(DeviceInformation[0].GraphicsFamily))
{
queue_indices.Add(DeviceInformation[0].GraphicsFamily);
}
if (!queue_indices.Contains(DeviceInformation[0].ComputeFamily))
{
queue_indices.Add(DeviceInformation[0].ComputeFamily);
}
if (!queue_indices.Contains(DeviceInformation[0].PresentFamily))
{
queue_indices.Add(DeviceInformation[0].PresentFamily);
}
if (!queue_indices.Contains(DeviceInformation[0].TransferFamily))
{
queue_indices.Add(DeviceInformation[0].TransferFamily);
}
DeviceInformation[0].QueueFamilyIndices = queue_indices.ToArray();
var physDeviceProps = new ManagedPtr <VkPhysicalDeviceProperties>();
vkGetPhysicalDeviceProperties(DeviceInformation[0].PhysicalDevice, physDeviceProps);
DeviceInformation[0].Properties = physDeviceProps.Value;
var caps_ptr = new ManagedPtr <VkSurfaceCapabilitiesKHR>();
vkGetPhysicalDeviceSurfaceCapabilitiesKHR(DeviceInformation[0].PhysicalDevice, surfaceHndl, caps_ptr);
var caps = caps_ptr.Value;
VkExtent2D cur_extent = new VkExtent2D();
if (caps.currentExtent.width != uint.MaxValue)
{
cur_extent = caps.currentExtent;
}
else
{
cur_extent.width = System.Math.Clamp((uint)Window.Width, caps.minImageExtent.width, caps.maxImageExtent.width);
cur_extent.height = System.Math.Clamp((uint)Window.Height, caps.minImageExtent.height, caps.maxImageExtent.height);
}
uint img_cnt = caps.minImageCount + 1;
VkSwapchainCreateInfoKHR swapCreatInfo = new VkSwapchainCreateInfoKHR()
{
sType = VkStructureType.StructureTypeSwapchainCreateInfoKhr,
surface = surfaceHndl,
minImageCount = img_cnt,
imageFormat = surface_fmt.format,
imageColorSpace = surface_fmt.colorSpace,
imageExtent = cur_extent,
imageArrayLayers = 1,
imageUsage = VkImageUsageFlags.ImageUsageColorAttachmentBit | VkImageUsageFlags.ImageUsageTransferDstBit | VkImageUsageFlags.ImageUsageTransferSrcBit,
imageSharingMode = VkSharingMode.SharingModeExclusive,
queueFamilyIndexCount = 0,
pQueueFamilyIndices = null,
preTransform = caps.currentTransform,
compositeAlpha = VkCompositeAlphaFlagsKHR.CompositeAlphaOpaqueBitKhr,
presentMode = present_mode,
clipped = true,
oldSwapchain = IntPtr.Zero
};
var swapCreatInfo_ptr = swapCreatInfo.Pointer();
fixed(IntPtr *swapchain_ptr = &swapChainHndl)
res = vkCreateSwapchainKHR(DeviceInformation[0].Device, swapCreatInfo_ptr, null, swapchain_ptr);
if (res != VkResult.Success)
throw new Exception("Failed to create swapchain.");
fixed(uint *swapchain_img_cnt_ptr = &swapchain_img_cnt)
{
vkGetSwapchainImagesKHR(DeviceInformation[0].Device, swapChainHndl, swapchain_img_cnt_ptr, null);
var swapchainImages_l = new IntPtr[swapchain_img_cnt];
fixed(IntPtr *swapchain_imgs = swapchainImages_l)
vkGetSwapchainImagesKHR(DeviceInformation[0].Device, swapChainHndl, swapchain_img_cnt_ptr, swapchain_imgs);
MaxFramesInFlight = swapchain_img_cnt;
MaxFrameCount = swapchain_img_cnt;
swapchainImages = new Image[swapchain_img_cnt];
for (int i = 0; i < swapchainImages.Length; i++)
{
swapchainImages[i] = new Image($"Swapchain_{i}")
{
Dimensions = 2,
Width = cur_extent.width,
Height = cur_extent.height,
Depth = 1,
Format = (ImageFormat)surface_fmt.format,
Layers = 1,
Levels = 1,
MemoryUsage = MemoryUsage.GpuOnly,
Usage = ImageUsage.Sampled,
InitialLayout = ImageLayout.Undefined,
Cubemappable = false,
};
swapchainImages[i].Build(0, swapchainImages_l[i]);
}
surface_extent = cur_extent;
swapchainViews = new ImageView[swapchain_img_cnt];
DefaultFramebuffer = new Framebuffer[swapchain_img_cnt];
for (int i = 0; i < swapchainImages.Length; i++)
{
swapchainViews[i] = new ImageView($"Swapchain_{i}")
{
BaseLayer = 0,
BaseLevel = 0,
Format = (ImageFormat)surface_fmt.format,
LayerCount = 1,
LevelCount = 1,
ViewType = ImageViewType.View2D,
};
swapchainViews[i].Build(swapchainImages[i]);
DefaultFramebuffer[i] = new Framebuffer();
DefaultFramebuffer[i].Width = surface_extent.width;
DefaultFramebuffer[i].Height = surface_extent.height;
DefaultFramebuffer[i].Name = $"Swapchain_{i}";
DefaultFramebuffer[i].ColorAttachments = new ImageView[] { swapchainViews[i] };
}
}
for (int i = 0; i < instLayers.Count; i++)
{
Marshal.FreeHGlobal(layers[i]);
}
for (int i = 0; i < instExtns.Count; i++)
{
Marshal.FreeHGlobal(extns[i]);
}
for (int i = 0; i < devExtns.Count; i++)
{
Marshal.FreeHGlobal(devExtns_ptr[i]);
}
//TODO allocate compute and trasnfer queues for all secondary devices
}
for (int i = 0; i < 1 /*DeviceInformation.Length*/; i++)
{
var devInfo = DeviceInformation[i];
IntPtr rrCtxtHndl = IntPtr.Zero;
if (rrCreateContextVk(RrApiVersion, devInfo.Device, devInfo.PhysicalDevice, devInfo.ComputeQueue.Handle, devInfo.ComputeFamily, &rrCtxtHndl) != RRError.RrSuccess)
{
Console.WriteLine($"Failed to initialize RadeonRays for device #{i}.");
}
DeviceInformation[i].RaysContext = rrCtxtHndl;
}
FrameFinishedSemaphore = new GpuSemaphore[MaxFramesInFlight];
ImageAvailableSemaphore = new GpuSemaphore[MaxFramesInFlight];
InflightFences = new Fence[MaxFramesInFlight];
for (int i = 0; i < MaxFramesInFlight; i++)
{
FrameFinishedSemaphore[i] = new GpuSemaphore();
FrameFinishedSemaphore[i].Build(0, false, 0);
ImageAvailableSemaphore[i] = new GpuSemaphore();
ImageAvailableSemaphore[i].Build(0, false, 0);
InflightFences[i] = new Fence
{
CreateSignaled = true
};
InflightFences[i].Build(0);
}
Width = (uint)Window.Width;
Height = (uint)Window.Height;
}
}
private static uint RateDevice(IntPtr physDevice)
{
var devProps = new ManagedPtr <VkPhysicalDeviceProperties>();
var devFeats = new ManagedPtr <VkPhysicalDeviceFeatures>();
vkGetPhysicalDeviceProperties(physDevice, devProps);
vkGetPhysicalDeviceFeatures(physDevice, devFeats);
var devProps_ = devProps.Value;
var devFeats_ = devFeats.Value;
uint score = 0;
if (devProps_.deviceType == VkPhysicalDeviceType.PhysicalDeviceTypeDiscreteGpu)
{
score += 100;
}
score += devProps_.limits.maxImageDimension2D;
if (!devFeats_.multiDrawIndirect)
{
return(0);
}
if (!devFeats_.tessellationShader)
{
return(0);
}
if (!ExtensionsSupported(physDevice))
{
return(0);
}
var caps_ptr = new ManagedPtr <VkSurfaceCapabilitiesKHR>();
vkGetPhysicalDeviceSurfaceCapabilitiesKHR(physDevice, surfaceHndl, caps_ptr);
var caps = caps_ptr.Value;
uint fmt_cnt = 0;
vkGetPhysicalDeviceSurfaceFormatsKHR(physDevice, surfaceHndl, &fmt_cnt, null);
var fmts_ptr = new ManagedPtrArray <VkSurfaceFormatKHR>(fmt_cnt);
vkGetPhysicalDeviceSurfaceFormatsKHR(physDevice, surfaceHndl, &fmt_cnt, fmts_ptr);
var fmts = fmts_ptr.Value;
bool fmt_valid = false;
VkSurfaceFormatKHR chosen_fmt = new VkSurfaceFormatKHR();
foreach (var avail_fmt in fmts)
{
if (avail_fmt.format == VkFormat.FormatB8g8r8a8Unorm && avail_fmt.colorSpace == VkColorSpaceKHR.ColorSpaceSrgbNonlinearKhr)
{
chosen_fmt = avail_fmt;
fmt_valid = true;
break;
}
}
if (!fmt_valid && fmts.Length > 0)
{
chosen_fmt = fmts[0];
fmt_valid = true;
}
uint present_mode_cnt = 0;
vkGetPhysicalDeviceSurfacePresentModesKHR(physDevice, surfaceHndl, &present_mode_cnt, null);
var present_modes = stackalloc VkPresentModeKHR[(int)present_mode_cnt];
vkGetPhysicalDeviceSurfacePresentModesKHR(physDevice, surfaceHndl, &present_mode_cnt, present_modes);
bool present_valid = false;
VkPresentModeKHR chosen_present = VkPresentModeKHR.PresentModeBeginRangeKhr;
for (int i = 0; i < present_mode_cnt; i++)
{
var avail_present = present_modes[i];
if (avail_present == VkPresentModeKHR.PresentModeMailboxKhr)
{
present_valid = true;
chosen_present = VkPresentModeKHR.PresentModeMailboxKhr;
}
else if (avail_present == VkPresentModeKHR.PresentModeFifoRelaxedKhr)
{
present_valid = true;
chosen_present = VkPresentModeKHR.PresentModeFifoRelaxedKhr;
}
}
if (!present_valid)
{
present_valid = true;
chosen_present = VkPresentModeKHR.PresentModeFifoKhr;
}
chosen_present = VkPresentModeKHR.PresentModeImmediateKhr;
if (!fmt_valid)
{
return(0);
}
if (!present_valid)
{
return(0);
}
present_mode = chosen_present;
surface_fmt = chosen_fmt;
return(score);
}
