public static VkDevice Create(Settings settings, VkPhysicalDeviceFeatures enabledFeatures, CStringList enabledExtensions,
VkQueueFlags requestedQueueTypes = VkQueueFlags.Graphics | VkQueueFlags.Compute | VkQueueFlags.Transfer)
{
instanceExtensions.Add(Vulkan.KHRSurfaceExtensionName);
instanceExtensions.Add(Vulkan.KHRGetPhysicalDeviceProperties2ExtensionName);
enabledExtensions.Add(Vulkan.KHRMaintenance1ExtensionName);
enabledExtensions.Add(Vulkan.EXTInlineUniformBlockExtensionName);
//enabledExtensions.Add(Strings.VK_DESCRIPTOR_BINDING_PARTIALLY_BOUND_BIT_EXT);
CreateInstance(settings);
// Physical Device
var physicalDevices = Vulkan.vkEnumeratePhysicalDevices(VkInstance);
// TODO: Implement arg parsing, etc.
int selectedDevice = 0;
PhysicalDevice = physicalDevices[selectedDevice];
Debug.Assert(PhysicalDevice.Handle != IntPtr.Zero);
vkGetPhysicalDeviceProperties(PhysicalDevice, out VkPhysicalDeviceProperties properties);
Properties = properties;
vkGetPhysicalDeviceFeatures(PhysicalDevice, out VkPhysicalDeviceFeatures features);
Features = features;
if (features.tessellationShader)
{
enabledFeatures.tessellationShader = true;
}
if (features.multiDrawIndirect)
{
enabledFeatures.multiDrawIndirect = true;
}
// Enable anisotropic filtering if supported
if (features.samplerAnisotropy)
{
enabledFeatures.samplerAnisotropy = true;
}
// Enable texture compression
if (features.textureCompressionBC)
{
enabledFeatures.textureCompressionBC = true;
}
else if (features.textureCompressionASTC_LDR)
{
enabledFeatures.textureCompressionASTC_LDR = true;
}
else if (features.textureCompressionETC2)
{
enabledFeatures.textureCompressionETC2 = true;
}
if (features.sparseBinding && features.sparseResidencyImage2D)
{
enabledFeatures.shaderResourceResidency = true;
enabledFeatures.shaderResourceMinLod = true;
enabledFeatures.sparseBinding = true;
enabledFeatures.sparseResidencyImage2D = true;
}
else
{
Log.Warn("Sparse binding not supported");
}
// Memory properties are used regularly for creating all kinds of buffers
VkPhysicalDeviceMemoryProperties memoryProperties;
vkGetPhysicalDeviceMemoryProperties(PhysicalDevice, out memoryProperties);
MemoryProperties = memoryProperties;
var qf = Vulkan.vkGetPhysicalDeviceQueueFamilyProperties(PhysicalDevice);
QueueFamilyProperties.Add(qf);
var extensions = Vulkan.vkEnumerateDeviceExtensionProperties(PhysicalDevice);
foreach (var ext in extensions)
{
string strExt = UTF8String.FromPointer(ext.extensionName);
//enabledExtensions.Add((IntPtr)ext.extensionName);
supportedExtensions.Add(strExt);
}
device = CreateLogicalDevice(Features, enabledExtensions, true, requestedQueueTypes);
if (device != VkDevice.Null)
{
VkPipelineCacheCreateInfo pipelineCacheCreateInfo = new VkPipelineCacheCreateInfo()
{
sType = VkStructureType.PipelineCacheCreateInfo
};
VulkanUtil.CheckResult(vkCreatePipelineCache(device, &pipelineCacheCreateInfo, null, out pipelineCache));
}
return(device);
}
public unsafe Swapchain(IntPtr sdlWindow)
{
SDL_version version;
SDL_GetVersion(&version);
SDL_SysWMinfo sysWmInfo;
sysWmInfo.version = version;
int result = SDL_GetWMWindowInfo(sdlWindow, &sysWmInfo);
if (result == 0)
{
throw new InvalidOperationException("Couldn't retrieve SDL window info.");
}
VkSurfaceKHR surface;
if (SDL_Vulkan_CreateSurface(sdlWindow, Device.VkInstance.Handle, (IntPtr)(&surface)) == 0)
{
var error = UTF8String.FromPointer(SDL_GetError());
Log.Error("create surface failed." + error);
}
;
Surface = surface;
VkResult err;
/*
* if (sysWmInfo.subsystem == SysWMType.Windows)
* {
* Win32WindowInfo win32Info = Unsafe.Read<Win32WindowInfo>(&sysWmInfo.info);
* // Create the os-specific Surface
* VkWin32SurfaceCreateInfoKHR surfaceCreateInfo = VkWin32SurfaceCreateInfoKHR.New();
* var processHandle = Process.GetCurrentProcess().SafeHandle.DangerousGetHandle();
* surfaceCreateInfo.hinstance = processHandle;
* surfaceCreateInfo.hwnd = win32Info.Sdl2Window;
* err = vkCreateWin32SurfaceKHR(Device.VkInstance, &surfaceCreateInfo, null, &surface);
* Surface = surface;
* }
* else if (sysWmInfo.subsystem == SysWMType.X11)
* {
* X11WindowInfo x11Info = Unsafe.Read<X11WindowInfo>(&sysWmInfo.info);
* VkXlibSurfaceCreateInfoKHR surfaceCreateInfo = VkXlibSurfaceCreateInfoKHR.New();
* surfaceCreateInfo.dpy = (Vulkan.Xlib.Display*)x11Info.display;
* surfaceCreateInfo.window = new Vulkan.Xlib.Window { Value = x11Info.Sdl2Window };
* err = vkCreateXlibSurfaceKHR(Device.VkInstance, &surfaceCreateInfo, null, out surface);
* Surface = surface;
* }
* else
* {
* throw new NotImplementedException($"SDL backend not implemented: {sysWmInfo.subsystem}.");
* }*/
var queueProps = vkGetPhysicalDeviceQueueFamilyProperties(Device.PhysicalDevice);
// Iterate over each queue to learn whether it supports presenting:
// Find a queue with present support
// Will be used to present the swap chain Images to the windowing system
VkBool32 *supportsPresent = stackalloc VkBool32[(int)queueProps.Length];
for (int i = 0; i < queueProps.Length; i++)
{
vkGetPhysicalDeviceSurfaceSupportKHR(Device.PhysicalDevice, (uint)i, Surface, out supportsPresent[i]);
}
// Search for a graphics and a present queue in the array of queue
// families, try to find one that supports both
uint graphicsQueueNodeIndex = uint.MaxValue;
uint presentQueueNodeIndex = uint.MaxValue;
for (int i = 0; i < queueProps.Length; i++)
{
if ((queueProps[i].queueFlags & VkQueueFlags.Graphics) != 0)
{
if (graphicsQueueNodeIndex == uint.MaxValue)
{
graphicsQueueNodeIndex = (uint)i;
}
if (supportsPresent[i] == true)
{
graphicsQueueNodeIndex = (uint)i;
presentQueueNodeIndex = (uint)i;
break;
}
}
}
if (presentQueueNodeIndex == uint.MaxValue)
{
// If there's no queue that supports both present and graphics
// try to find a separate present queue
for (uint i = 0; i < queueProps.Length; ++i)
{
if (supportsPresent[i] == true)
{
presentQueueNodeIndex = i;
break;
}
}
}
// Exit if either a graphics or a presenting queue hasn't been found
if (graphicsQueueNodeIndex == uint.MaxValue || presentQueueNodeIndex == uint.MaxValue)
{
throw new InvalidOperationException("Could not find a graphics and/or presenting queue!");
}
// todo : Add support for separate graphics and presenting queue
if (graphicsQueueNodeIndex != presentQueueNodeIndex)
{
throw new InvalidOperationException("Separate graphics and presenting queues are not supported yet!");
}
QueueNodeIndex = graphicsQueueNodeIndex;
// Get list of supported Surface formats
uint formatCount;
err = vkGetPhysicalDeviceSurfaceFormatsKHR(Device.PhysicalDevice, Surface, &formatCount, null);
Debug.Assert(err == VkResult.Success);
Debug.Assert(formatCount > 0);
using Vector <VkSurfaceFormatKHR> surfaceFormats = new Vector <VkSurfaceFormatKHR>(formatCount);
err = vkGetPhysicalDeviceSurfaceFormatsKHR(Device.PhysicalDevice, Surface, &formatCount, surfaceFormats.DataPtr);
surfaceFormats.Count = formatCount;
Debug.Assert(err == VkResult.Success);
// If the Surface format list only includes one entry with VK_FORMAT_UNDEFINED,
// there is no preferered format, so we assume VK_FORMAT_B8G8R8A8_UNORM
if ((formatCount == 1) && (surfaceFormats[0].format == VkFormat.Undefined))
{
ColorFormat = VkFormat.B8G8R8A8UNorm;
ColorSpace = surfaceFormats[0].colorSpace;
}
else
{
// iterate over the list of available Surface format and
// check for the presence of VK_FORMAT_B8G8R8A8_UNORM
bool found_B8G8R8A8_UNORM = false;
foreach (var surfaceFormat in surfaceFormats)
{
if (surfaceFormat.format == VkFormat.B8G8R8A8UNorm)
{
ColorFormat = surfaceFormat.format;
ColorSpace = surfaceFormat.colorSpace;
found_B8G8R8A8_UNORM = true;
break;
}
}
// in case VK_FORMAT_B8G8R8A8_UNORM is not available
// select the first available color format
if (!found_B8G8R8A8_UNORM)
{
ColorFormat = surfaceFormats[0].format;
ColorSpace = surfaceFormats[0].colorSpace;
}
}
}
