public FrameBuffer(GraphicsDevice device, RenderPass renderPass, DepthStencil depthStencil, Swapchain swapchain, uint swapchainImageIndex)
{
this.device = device;
this.renderPass = renderPass;
this.depthStencil = depthStencil;
this.swapchain = swapchain;
this.swapchainImageIndex = swapchainImageIndex;
Setup();
}
public static RenderPass Single(GraphicsDevice device, Swapchain swapchain = null)
{
if (swapchain == null)
{
swapchain = device.mainSwapchain;
}
RenderPass newPass = new RenderPass(device);
newPass.SetupSinglePass(swapchain);
return(newPass);
}
public static RenderPass ClearTargetsPass(GraphicsDevice device, Swapchain swapchain = null)
{
if (swapchain == null)
{
swapchain = device.mainSwapchain;
}
RenderPass newPass = new RenderPass(device);
newPass.SetupClearAttachmentsPass(swapchain);
return(newPass);
}
public CommandPool(GraphicsDevice device, Swapchain swapchain)
{
this.device = device;
VkCommandPoolCreateInfo cmdPoolInfo = VkCommandPoolCreateInfo.New();
cmdPoolInfo.queueFamilyIndex = swapchain.vkSwapchain.QueueNodeIndex;
cmdPoolInfo.flags =
VkCommandPoolCreateFlags.ResetCommandBuffer
| VkCommandPoolCreateFlags.Transient;
Util.CheckResult(vkCreateCommandPool(device.device, &cmdPoolInfo, null, out vkCmdPool));
AllocateBuffers(VkCommandBufferLevel.Primary, 2);
AllocateBuffers(VkCommandBufferLevel.Secondary, 2);
}
/// <summary>
/// Must be called outside of a renderpass scope.
/// </summary>
/// <param name="depthStencil"></param>
/// <param name="clearValue"></param>
public void ClearColor(Swapchain swapchain, uint swapchainImageIndex, VkClearColorValue clearColor)
{
CheckBegun();
CheckNotInRenderPass();
VkClearValue clearValue = new VkClearValue();
clearValue.color = clearColor;
VkImageSubresourceRange imageRange = new VkImageSubresourceRange();
imageRange.aspectMask = VkImageAspectFlags.Color;
imageRange.levelCount = 1;
imageRange.layerCount = 1;
vkCmdClearColorImage(vkCmd, swapchain.vkSwapchain.Images[swapchainImageIndex], VkImageLayout.General, &clearColor, 1, &imageRange);
}
public GraphicsDevice(bool enableValidation)
{
VkResult err;
err = CreateInstance("VulkanDevice", enableValidation);
if (err != VkResult.Success)
{
throw new InvalidOperationException("Could not create Vulkan instance. Error: " + err);
}
// Physical Device
uint gpuCount = 0;
Util.CheckResult(vkEnumeratePhysicalDevices(Instance, &gpuCount, null));
Debug.Assert(gpuCount > 0);
// Enumerate devices
IntPtr *physicalDevices = stackalloc IntPtr[(int)gpuCount];
err = vkEnumeratePhysicalDevices(Instance, &gpuCount, (VkPhysicalDevice *)physicalDevices);
if (err != VkResult.Success)
{
throw new InvalidOperationException("Could not enumerate physical devices.");
}
// GPU selection
uint selectedDevice = 0;
VkPhysicalDeviceType bestType = VkPhysicalDeviceType.Other;
ulong bestDeviceLocalMemSize = 0;
for (uint i = 0; i < gpuCount; i++)
{
VkPhysicalDevice device = ((VkPhysicalDevice *)physicalDevices)[i];
VkPhysicalDeviceProperties devProps;
vkGetPhysicalDeviceProperties(device, &devProps);
if (devProps.deviceType == VkPhysicalDeviceType.IntegratedGpu &&
bestType != VkPhysicalDeviceType.IntegratedGpu &&
bestType != VkPhysicalDeviceType.DiscreteGpu)
{
selectedDevice = i;
bestType = VkPhysicalDeviceType.IntegratedGpu;
bestDeviceLocalMemSize = GetDeviceLocalMemorySize(device);
}
else if (devProps.deviceType == VkPhysicalDeviceType.DiscreteGpu &&
bestType != VkPhysicalDeviceType.DiscreteGpu)
{
//Found a discrete GPU, we can choose it.
selectedDevice = i;
bestType = VkPhysicalDeviceType.DiscreteGpu;
bestDeviceLocalMemSize = GetDeviceLocalMemorySize(device);
}
else if (devProps.deviceType == VkPhysicalDeviceType.DiscreteGpu &&
bestType == VkPhysicalDeviceType.DiscreteGpu)
{
ulong memSize = GetDeviceLocalMemorySize(device);
if (memSize > bestDeviceLocalMemSize)
{
}
selectedDevice = i;
bestType = VkPhysicalDeviceType.DiscreteGpu;
bestDeviceLocalMemSize = memSize;
}
}
Console.WriteLine($"Found a vulkan capable GPU of type {bestType} at location {selectedDevice}. With {bestDeviceLocalMemSize / (1024 * 1024)}MiB of memory.");
// Select physical Device to be used for the Vulkan example
// Defaults to the first Device unless specified by command line
// TODO: Implement arg parsing, etc.
physicalDevice = ((VkPhysicalDevice *)physicalDevices)[selectedDevice];
Console.WriteLine(PrintDeviceMemoryData(physicalDevice));
// Store properties (including limits) and features of the phyiscal Device
// So examples can check against them and see if a feature is actually supported
VkPhysicalDeviceProperties deviceProperties;
vkGetPhysicalDeviceProperties(physicalDevice, &deviceProperties);
DeviceProperties = deviceProperties;
VkPhysicalDeviceFeatures deviceFeatures;
vkGetPhysicalDeviceFeatures(physicalDevice, &deviceFeatures);
DeviceFeatures = deviceFeatures;
// Gather physical Device memory properties
VkPhysicalDeviceMemoryProperties deviceMemoryProperties;
vkGetPhysicalDeviceMemoryProperties(physicalDevice, &deviceMemoryProperties);
DeviceMemoryProperties = deviceMemoryProperties;
// Derived examples can override this to set actual features (based on above readings) to enable for logical device creation
//getEnabledFeatures();
// Vulkan Device creation
// This is handled by a separate class that gets a logical Device representation
// and encapsulates functions related to a Device
vulkanDevice = new vksVulkanDevice(physicalDevice);
VkResult res = vulkanDevice.CreateLogicalDevice(enabledFeatures, EnabledExtensions);
if (res != VkResult.Success)
{
throw new InvalidOperationException("Could not create Vulkan Device.");
}
device = vulkanDevice.LogicalDevice;
// Get a graphics queue from the Device
VkQueue queue;
vkGetDeviceQueue(device, vulkanDevice.QFIndices.Graphics, 0, &queue);
this.queue = queue;
// Find a suitable depth format
VkFormat depthFormat;
uint validDepthFormat = Tools.GetSupportedDepthFormat(physicalDevice, &depthFormat);
Debug.Assert(validDepthFormat == True);
DepthFormat = depthFormat;
mainSwapchain = new Swapchain(this);
mainSwapchain.Connect(Instance, physicalDevice, device);
// Create synchronization objects
VkSemaphoreCreateInfo semaphoreCreateInfo = Initializers.semaphoreCreateInfo();
// Create a semaphore used to synchronize image presentation
// Ensures that the image is displayed before we start submitting new commands to the queu
Util.CheckResult(vkCreateSemaphore(device, &semaphoreCreateInfo, null, &GetSemaphoresPtr()->PresentComplete));
// Create a semaphore used to synchronize command submission
// Ensures that the image is not presented until all commands have been sumbitted and executed
Util.CheckResult(vkCreateSemaphore(device, &semaphoreCreateInfo, null, &GetSemaphoresPtr()->RenderComplete));
// Create a semaphore used to synchronize command submission
// Ensures that the image is not presented until all commands for the text overlay have been sumbitted and executed
// Will be inserted after the render complete semaphore if the text overlay is enabled
Util.CheckResult(vkCreateSemaphore(device, &semaphoreCreateInfo, null, &GetSemaphoresPtr()->TextOverlayComplete));
// Set up submit info structure
// Semaphores will stay the same during application lifetime
// Command buffer submission info is set by each example
submitInfo = Initializers.SubmitInfo();
submitInfo.pWaitDstStageMask = (VkPipelineStageFlags *)submitPipelineStages.Data;
submitInfo.waitSemaphoreCount = 1;
submitInfo.pWaitSemaphores = &GetSemaphoresPtr()->PresentComplete;
submitInfo.signalSemaphoreCount = 1;
submitInfo.pSignalSemaphores = &GetSemaphoresPtr()->RenderComplete;
memoryAllocator = new VulkanMemoryAllocator(this);
}
public DepthStencil(GraphicsDevice device, Swapchain swapchain)
{
this.device = device;
this.swapchain = swapchain;
Setup();
}
private void SetupClearAttachmentsPass(Swapchain swapchain)
{
using (NativeList <VkAttachmentDescription> attachments = new NativeList <VkAttachmentDescription>())
{
attachments.Count = 2;
// Color attachment
attachments[0] = new VkAttachmentDescription();
attachments[0].format = swapchain.vkSwapchain.ColorFormat;
attachments[0].samples = VkSampleCountFlags.Count1;
attachments[0].loadOp = VkAttachmentLoadOp.Clear;
attachments[0].storeOp = VkAttachmentStoreOp.Store;
attachments[0].stencilLoadOp = VkAttachmentLoadOp.DontCare;
attachments[0].stencilStoreOp = VkAttachmentStoreOp.DontCare;
attachments[0].initialLayout = VkImageLayout.Undefined;
attachments[0].finalLayout = VkImageLayout.ColorAttachmentOptimal; //TODO
// Depth attachment
attachments[1] = new VkAttachmentDescription();
attachments[1].format = device.DepthFormat;
attachments[1].samples = VkSampleCountFlags.Count1;
attachments[1].loadOp = VkAttachmentLoadOp.Clear;
attachments[1].storeOp = VkAttachmentStoreOp.Store;
attachments[1].stencilLoadOp = VkAttachmentLoadOp.DontCare;
attachments[1].stencilStoreOp = VkAttachmentStoreOp.DontCare;
attachments[1].initialLayout = VkImageLayout.Undefined;
attachments[1].finalLayout = VkImageLayout.DepthStencilAttachmentOptimal;
VkAttachmentReference colorReference = new VkAttachmentReference();
colorReference.attachment = 0;
colorReference.layout = VkImageLayout.ColorAttachmentOptimal;
VkAttachmentReference depthReference = new VkAttachmentReference();
depthReference.attachment = 1;
depthReference.layout = VkImageLayout.DepthStencilAttachmentOptimal;
VkSubpassDescription subpassDescription = new VkSubpassDescription();
subpassDescription.pipelineBindPoint = VkPipelineBindPoint.Graphics;
subpassDescription.colorAttachmentCount = 1;
subpassDescription.pColorAttachments = &colorReference;
subpassDescription.pDepthStencilAttachment = &depthReference;
subpassDescription.inputAttachmentCount = 0;
subpassDescription.pInputAttachments = null;
subpassDescription.preserveAttachmentCount = 0;
subpassDescription.pPreserveAttachments = null;
subpassDescription.pResolveAttachments = null;
// Subpass dependencies for layout transitions
using (NativeList <VkSubpassDependency> dependencies = new NativeList <VkSubpassDependency>(2))
{
dependencies.Count = 2;
dependencies[0].srcSubpass = SubpassExternal;
dependencies[0].dstSubpass = 0;
dependencies[0].srcStageMask = VkPipelineStageFlags.BottomOfPipe;
dependencies[0].dstStageMask = VkPipelineStageFlags.ColorAttachmentOutput;
dependencies[0].srcAccessMask = VkAccessFlags.MemoryRead;
dependencies[0].dstAccessMask = (VkAccessFlags.ColorAttachmentRead | VkAccessFlags.ColorAttachmentWrite);
dependencies[0].dependencyFlags = VkDependencyFlags.ByRegion;
dependencies[1].srcSubpass = 0;
dependencies[1].dstSubpass = SubpassExternal;
dependencies[1].srcStageMask = VkPipelineStageFlags.ColorAttachmentOutput;
dependencies[1].dstStageMask = VkPipelineStageFlags.BottomOfPipe;
dependencies[1].srcAccessMask = (VkAccessFlags.ColorAttachmentRead | VkAccessFlags.ColorAttachmentWrite);
dependencies[1].dstAccessMask = VkAccessFlags.MemoryRead;
dependencies[1].dependencyFlags = VkDependencyFlags.ByRegion;
VkRenderPassCreateInfo renderPassInfo = new VkRenderPassCreateInfo();
renderPassInfo.sType = VkStructureType.RenderPassCreateInfo;
renderPassInfo.attachmentCount = attachments.Count;
renderPassInfo.pAttachments = (VkAttachmentDescription *)attachments.Data.ToPointer();
renderPassInfo.subpassCount = 1;
renderPassInfo.pSubpasses = &subpassDescription;
renderPassInfo.dependencyCount = dependencies.Count;
renderPassInfo.pDependencies = (VkSubpassDependency *)dependencies.Data;
Util.CheckResult(vkCreateRenderPass(device.device, &renderPassInfo, null, out vkRenderPass));
}
}
}
