private void CreateLogicalDevice()
{
GetQueueFamilyIndices();
HashSet <uint> familyIndices = new HashSet <uint> {
_graphicsQueueIndex, _presentQueueIndex
};
RawList <VkDeviceQueueCreateInfo> queueCreateInfos = new RawList <VkDeviceQueueCreateInfo>();
foreach (uint index in familyIndices)
{
VkDeviceQueueCreateInfo queueCreateInfo = VkDeviceQueueCreateInfo.New();
queueCreateInfo.queueFamilyIndex = _graphicsQueueIndex;
queueCreateInfo.queueCount = 1;
float priority = 1f;
queueCreateInfo.pQueuePriorities = &priority;
queueCreateInfos.Add(queueCreateInfo);
}
VkPhysicalDeviceFeatures deviceFeatures = new VkPhysicalDeviceFeatures();
deviceFeatures.samplerAnisotropy = true;
deviceFeatures.fillModeNonSolid = true;
deviceFeatures.geometryShader = true;
deviceFeatures.depthClamp = true;
VkDeviceCreateInfo deviceCreateInfo = VkDeviceCreateInfo.New();
fixed(VkDeviceQueueCreateInfo *qciPtr = &queueCreateInfos.Items[0])
{
deviceCreateInfo.pQueueCreateInfos = qciPtr;
deviceCreateInfo.queueCreateInfoCount = queueCreateInfos.Count;
deviceCreateInfo.pEnabledFeatures = &deviceFeatures;
StackList <IntPtr> layerNames = new StackList <IntPtr>();
layerNames.Add(CommonStrings.StandardValidationLayerName);
deviceCreateInfo.enabledLayerCount = layerNames.Count;
deviceCreateInfo.ppEnabledLayerNames = (byte **)layerNames.Data;
byte *extensionNames = CommonStrings.VK_KHR_SWAPCHAIN_EXTENSION_NAME;
deviceCreateInfo.enabledExtensionCount = 1;
deviceCreateInfo.ppEnabledExtensionNames = &extensionNames;
vkCreateDevice(_physicalDevice, ref deviceCreateInfo, null, out _device);
}
vkGetDeviceQueue(_device, _graphicsQueueIndex, 0, out _graphicsQueue);
vkGetDeviceQueue(_device, _presentQueueIndex, 0, out _presentQueue);
}
private void CopyDataMultiImage(
IntPtr pixelsFront,
IntPtr pixelsBack,
IntPtr pixelsLeft,
IntPtr pixelsRight,
IntPtr pixelsTop,
IntPtr pixelsBottom)
{
StackList <IntPtr, Size6IntPtr> faces = new StackList <IntPtr, Size6IntPtr>();
faces.Add(pixelsRight);
faces.Add(pixelsLeft);
faces.Add(pixelsTop);
faces.Add(pixelsBottom);
faces.Add(pixelsBack);
faces.Add(pixelsFront);
TransitionImageLayout(_image, (uint)MipLevels, 0, 6, _imageLayout, VkImageLayout.TransferDstOptimal);
for (uint i = 0; i < 6; i++)
{
CreateImage(
_device,
_physicalDevice,
_memoryManager,
(uint)Width,
(uint)Height,
1,
_vkFormat,
VkImageTiling.Linear,
VkImageUsageFlags.TransferSrc,
VkMemoryPropertyFlags.HostVisible | VkMemoryPropertyFlags.HostCoherent,
out VkImage stagingImage, out VkMemoryBlock stagingMemory);
VkImageSubresource subresource;
subresource.aspectMask = VkImageAspectFlags.Color;
subresource.arrayLayer = 0;
subresource.mipLevel = 0;
vkGetImageSubresourceLayout(_device, stagingImage, ref subresource, out VkSubresourceLayout stagingLayout);
void * mappedPtr;
VkResult result = vkMapMemory(_device, stagingMemory.DeviceMemory, stagingMemory.Offset, stagingLayout.size, 0, &mappedPtr);
CheckResult(result);
IntPtr data = faces[i];
ulong dataSizeInBytes = (ulong)(Width * Height * FormatHelpers.GetPixelSizeInBytes(_format));
ulong rowPitch = stagingLayout.rowPitch;
if (rowPitch == (ulong)Width)
{
Buffer.MemoryCopy(data.ToPointer(), mappedPtr, dataSizeInBytes, dataSizeInBytes);
}
else
{
int pixelSizeInBytes = FormatHelpers.GetPixelSizeInBytes(_format);
for (uint yy = 0; yy < Height; yy++)
{
byte *dstRowStart = ((byte *)mappedPtr) + (rowPitch * yy);
byte *srcRowStart = ((byte *)data.ToPointer()) + (Width * yy * pixelSizeInBytes);
Unsafe.CopyBlock(dstRowStart, srcRowStart, (uint)(Width * pixelSizeInBytes));
}
}
vkUnmapMemory(_device, stagingMemory.DeviceMemory);
TransitionImageLayout(stagingImage, 1, 0, 1, VkImageLayout.Preinitialized, VkImageLayout.TransferSrcOptimal);
CopyImage(stagingImage, 0, 0, _image, 0, i, (uint)Width, (uint)Height);
vkDestroyImage(_device, stagingImage, null);
_memoryManager.Free(stagingMemory);
}
}
private void CopyDataSingleStagingBuffer(IntPtr pixelsFront, IntPtr pixelsBack, IntPtr pixelsLeft, IntPtr pixelsRight, IntPtr pixelsTop, IntPtr pixelsBottom, VkMemoryRequirements memReqs)
{
VkBufferCreateInfo bufferCI = VkBufferCreateInfo.New();
bufferCI.size = memReqs.size;
bufferCI.usage = VkBufferUsageFlags.TransferSrc;
vkCreateBuffer(_device, ref bufferCI, null, out VkBuffer stagingBuffer);
vkGetBufferMemoryRequirements(_device, stagingBuffer, out VkMemoryRequirements stagingMemReqs);
VkMemoryBlock stagingMemory = _memoryManager.Allocate(
FindMemoryType(
_physicalDevice,
stagingMemReqs.memoryTypeBits,
VkMemoryPropertyFlags.HostVisible | VkMemoryPropertyFlags.HostCoherent),
stagingMemReqs.size,
stagingMemReqs.alignment);
VkResult result = vkBindBufferMemory(_device, stagingBuffer, stagingMemory.DeviceMemory, 0);
CheckResult(result);
StackList <IntPtr, Size6IntPtr> faces = new StackList <IntPtr, Size6IntPtr>();
faces.Add(pixelsRight);
faces.Add(pixelsLeft);
faces.Add(pixelsTop);
faces.Add(pixelsBottom);
faces.Add(pixelsBack);
faces.Add(pixelsFront);
for (uint i = 0; i < 6; i++)
{
VkImageSubresource subresource;
subresource.aspectMask = VkImageAspectFlags.Color;
subresource.arrayLayer = i;
subresource.mipLevel = 0;
vkGetImageSubresourceLayout(_device, _image, ref subresource, out VkSubresourceLayout faceLayout);
void *mappedPtr;
result = vkMapMemory(_device, stagingMemory.DeviceMemory, faceLayout.offset, faceLayout.size, 0, &mappedPtr);
CheckResult(result);
Buffer.MemoryCopy((void *)faces[i], mappedPtr, faceLayout.size, faceLayout.size);
vkUnmapMemory(_device, stagingMemory.DeviceMemory);
}
StackList <VkBufferImageCopy, Size512Bytes> copyRegions = new StackList <VkBufferImageCopy, Size512Bytes>();
for (uint i = 0; i < 6; i++)
{
VkImageSubresource subres;
subres.aspectMask = VkImageAspectFlags.Color;
subres.mipLevel = 0;
subres.arrayLayer = i;
vkGetImageSubresourceLayout(_device, _image, ref subres, out VkSubresourceLayout layout);
VkBufferImageCopy copyRegion;
copyRegion.bufferOffset = layout.offset;
copyRegion.bufferImageHeight = 0;
copyRegion.bufferRowLength = 0;
copyRegion.imageExtent.width = (uint)Width;
copyRegion.imageExtent.height = (uint)Height;
copyRegion.imageExtent.depth = 1;
copyRegion.imageOffset.x = 0;
copyRegion.imageOffset.y = 0;
copyRegion.imageOffset.z = 0;
copyRegion.imageSubresource.baseArrayLayer = i;
copyRegion.imageSubresource.aspectMask = VkImageAspectFlags.Color;
copyRegion.imageSubresource.layerCount = 1;
copyRegion.imageSubresource.mipLevel = 0;
copyRegions.Add(copyRegion);
}
VkFenceCreateInfo fenceCI = VkFenceCreateInfo.New();
result = vkCreateFence(_device, ref fenceCI, null, out VkFence copyFence);
CheckResult(result);
TransitionImageLayout(_image, (uint)MipLevels, 0, 6, _imageLayout, VkImageLayout.TransferDstOptimal);
VkCommandBuffer copyCmd = _rc.BeginOneTimeCommands();
vkCmdCopyBufferToImage(copyCmd, stagingBuffer, _image, VkImageLayout.TransferDstOptimal, copyRegions.Count, (IntPtr)copyRegions.Data);
_rc.EndOneTimeCommands(copyCmd, copyFence);
result = vkWaitForFences(_device, 1, ref copyFence, true, ulong.MaxValue);
CheckResult(result);
vkDestroyBuffer(_device, stagingBuffer, null);
_memoryManager.Free(stagingMemory);
}
private void FlushFrameDrawCommands()
{
_scInfo.AcquireNextImage(_device, _imageAvailableSemaphore);
for (int i = 0; i < _renderPassStates.Count; i++)
{
RenderPassInfo renderPassState = _renderPassStates[i];
VkCommandBuffer primaryCommandBuffer = GetPrimaryCommandBuffer();
renderPassState.PrimaryCommandBuffer = primaryCommandBuffer;
VkCommandBufferBeginInfo beginInfo = VkCommandBufferBeginInfo.New();
beginInfo.flags = VkCommandBufferUsageFlags.OneTimeSubmit;
vkBeginCommandBuffer(primaryCommandBuffer, ref beginInfo);
VkRenderPassBeginInfo renderPassBeginInfo = VkRenderPassBeginInfo.New();
VkFramebufferBase fbInfo = renderPassState.Framebuffer;
renderPassBeginInfo.framebuffer = fbInfo.VkFramebuffer;
renderPassBeginInfo.renderPass = renderPassState.ClearBuffer
? fbInfo.RenderPassClearBuffer
: fbInfo.RenderPassNoClear;
if (renderPassState.ClearBuffer)
{
VkClearColorValue colorClear = new VkClearColorValue
{
float32_0 = renderPassState.ClearColor.R,
float32_1 = renderPassState.ClearColor.G,
float32_2 = renderPassState.ClearColor.B,
float32_3 = renderPassState.ClearColor.A
};
VkClearDepthStencilValue depthClear = new VkClearDepthStencilValue()
{
depth = 1f, stencil = 0
};
StackList <VkClearValue, Size512Bytes> clearValues = new StackList <VkClearValue, Size512Bytes>();
if (fbInfo.ColorTexture != null)
{
clearValues.Add(new VkClearValue()
{
color = colorClear
});
}
if (fbInfo.DepthTexture != null)
{
clearValues.Add(new VkClearValue()
{
depthStencil = depthClear
});
}
renderPassBeginInfo.clearValueCount = clearValues.Count;
renderPassBeginInfo.pClearValues = (VkClearValue *)clearValues.Data;
}
renderPassBeginInfo.renderArea.extent = new VkExtent2D(fbInfo.Width, fbInfo.Height);
vkCmdBeginRenderPass(primaryCommandBuffer, ref renderPassBeginInfo, VkSubpassContents.SecondaryCommandBuffers);
RawList <VkCommandBuffer> secondaryCBs = renderPassState.SecondaryCommandBuffers;
if (secondaryCBs.Count > 0)
{
vkCmdExecuteCommands(primaryCommandBuffer, secondaryCBs.Count, ref secondaryCBs[0]);
}
vkCmdEndRenderPass(primaryCommandBuffer);
vkEndCommandBuffer(primaryCommandBuffer);
VkSubmitInfo submitInfo = VkSubmitInfo.New();
VkSemaphore waitSemaphore = (i == 0) ? _imageAvailableSemaphore : _renderPassSemaphores[i - 1];
VkPipelineStageFlags waitStages = VkPipelineStageFlags.ColorAttachmentOutput;
submitInfo.waitSemaphoreCount = 1;
submitInfo.pWaitSemaphores = &waitSemaphore;
submitInfo.pWaitDstStageMask = &waitStages;
VkCommandBuffer cb = primaryCommandBuffer;
submitInfo.commandBufferCount = 1;
submitInfo.pCommandBuffers = &cb;
VkSemaphore signalSemaphore = _renderPassSemaphores[i];
submitInfo.signalSemaphoreCount = 1;
submitInfo.pSignalSemaphores = &signalSemaphore;
vkQueueSubmit(_graphicsQueue, 1, ref submitInfo, VkFence.Null);
}
}
private void DrawPrimitives(int indexCount, int instanceCount, int startingIndex, int startingVertex)
{
RenderPassInfo renderPassState = GetCurrentRenderPass();
VkPipelineLayout layout = ShaderResourceBindingSlots.PipelineLayout;
VkPipelineCacheKey pipelineCacheKey = new VkPipelineCacheKey();
pipelineCacheKey.RenderPass = renderPassState.Framebuffer.RenderPassClearBuffer;
pipelineCacheKey.PipelineLayout = layout;
pipelineCacheKey.BlendState = (VkBlendState)BlendState;
pipelineCacheKey.Framebuffer = renderPassState.Framebuffer;
pipelineCacheKey.DepthStencilState = (VkDepthStencilState)DepthStencilState;
pipelineCacheKey.RasterizerState = (VkRasterizerState)RasterizerState;
pipelineCacheKey.PrimitiveTopology = _primitiveTopology;
pipelineCacheKey.ShaderSet = ShaderSet;
pipelineCacheKey.VertexBindings = VertexBuffers;
VkPipeline graphicsPipeline = _resourceCache.GetGraphicsPipeline(ref pipelineCacheKey);
VkDescriptorSetCacheKey descriptorSetCacheKey = new VkDescriptorSetCacheKey();
descriptorSetCacheKey.ShaderResourceBindingSlots = ShaderResourceBindingSlots;
descriptorSetCacheKey.ConstantBuffers = _constantBuffers;
descriptorSetCacheKey.TextureBindings = _textureBindings;
descriptorSetCacheKey.SamplerStates = _samplerStates;
VkDescriptorSet descriptorSet = _resourceCache.GetDescriptorSet(ref descriptorSetCacheKey);
VkCommandBuffer cb = GetCommandBuffer();
VkCommandBufferBeginInfo beginInfo = VkCommandBufferBeginInfo.New();
beginInfo.flags = VkCommandBufferUsageFlags.OneTimeSubmit | VkCommandBufferUsageFlags.RenderPassContinue;
VkCommandBufferInheritanceInfo inheritanceInfo = VkCommandBufferInheritanceInfo.New();
inheritanceInfo.renderPass = renderPassState.Framebuffer.RenderPassClearBuffer;
beginInfo.pInheritanceInfo = &inheritanceInfo;
vkBeginCommandBuffer(cb, ref beginInfo);
vkCmdBindPipeline(cb, VkPipelineBindPoint.Graphics, graphicsPipeline);
vkCmdBindDescriptorSets(
cb,
VkPipelineBindPoint.Graphics,
layout,
0,
1,
ref descriptorSet,
0,
IntPtr.Zero);
int vbCount = ShaderSet.InputLayout.InputDescriptions.Length;
StackList <VkBuffer, Size512Bytes> vbs = new StackList <VkBuffer, Size512Bytes>();
for (int vbIndex = 0; vbIndex < vbCount; vbIndex++)
{
vbs.Add(((VkVertexBuffer)VertexBuffers[vbIndex]).DeviceBuffer);
}
StackList <VkBuffer, Size512Bytes> offsets = new StackList <VkBuffer, Size512Bytes>();
vkCmdBindVertexBuffers(cb, 0, vbs.Count, (IntPtr)vbs.Data, (IntPtr)offsets.Data);
vkCmdBindIndexBuffer(cb, IndexBuffer.DeviceBuffer, 0, IndexBuffer.IndexType);
VkViewport viewport = new VkViewport()
{
x = Viewport.X,
y = Viewport.Y,
width = Viewport.Width,
height = Viewport.Height,
minDepth = 0,
maxDepth = 1
};
vkCmdSetViewport(cb, 0, 1, ref viewport);
vkCmdSetScissor(cb, 0, 1, ref _scissorRect);
vkCmdDrawIndexed(cb, (uint)indexCount, (uint)instanceCount, (uint)startingIndex, startingVertex, 0);
vkEndCommandBuffer(cb);
renderPassState.SecondaryCommandBuffers.Add(cb);
}
private void CreateInstance()
{
HashSet <string> availableInstanceLayers = new HashSet <string>(EnumerateInstanceLayers());
HashSet <string> availableInstanceExtensions = new HashSet <string>(EnumerateInstanceExtensions());
VkInstanceCreateInfo instanceCI = VkInstanceCreateInfo.New();
VkApplicationInfo applicationInfo = new VkApplicationInfo();
applicationInfo.apiVersion = new VkVersion(1, 0, 0);
applicationInfo.applicationVersion = new VkVersion(1, 0, 0);
applicationInfo.engineVersion = new VkVersion(1, 0, 0);
applicationInfo.pApplicationName = s_name;
applicationInfo.pEngineName = s_name;
instanceCI.pApplicationInfo = &applicationInfo;
StackList <IntPtr, Size64Bytes> instanceExtensions = new StackList <IntPtr, Size64Bytes>();
StackList <IntPtr, Size64Bytes> instanceLayers = new StackList <IntPtr, Size64Bytes>();
if (!availableInstanceExtensions.Contains(CommonStrings.VK_KHR_SURFACE_EXTENSION_NAME))
{
throw new VeldridException($"The required instance extension was not available: {CommonStrings.VK_KHR_SURFACE_EXTENSION_NAME}");
}
instanceExtensions.Add(CommonStrings.VK_KHR_SURFACE_EXTENSION_NAME);
if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
if (!availableInstanceExtensions.Contains(CommonStrings.VK_KHR_WIN32_SURFACE_EXTENSION_NAME))
{
throw new VeldridException($"The required instance extension was not available: {CommonStrings.VK_KHR_WIN32_SURFACE_EXTENSION_NAME}");
}
instanceExtensions.Add(CommonStrings.VK_KHR_WIN32_SURFACE_EXTENSION_NAME);
}
else if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
{
if (!availableInstanceExtensions.Contains(CommonStrings.VK_KHR_XLIB_SURFACE_EXTENSION_NAME))
{
throw new VeldridException($"The required instance extension was not available: {CommonStrings.VK_KHR_XLIB_SURFACE_EXTENSION_NAME}");
}
instanceExtensions.Add(CommonStrings.VK_KHR_XLIB_SURFACE_EXTENSION_NAME);
}
else
{
throw new NotSupportedException("This platform does not support Vulkan.");
}
bool debug = false;
#if DEBUG
debug = true;
#endif
bool debugReportExtensionAvailable = false;
if (debug)
{
if (availableInstanceExtensions.Contains(CommonStrings.VK_EXT_DEBUG_REPORT_EXTENSION_NAME))
{
debugReportExtensionAvailable = true;
instanceExtensions.Add(CommonStrings.VK_EXT_DEBUG_REPORT_EXTENSION_NAME);
}
if (availableInstanceLayers.Contains(CommonStrings.StandardValidationLayerName))
{
instanceLayers.Add(CommonStrings.StandardValidationLayerName);
}
}
instanceCI.enabledExtensionCount = instanceExtensions.Count;
instanceCI.ppEnabledExtensionNames = (byte **)instanceExtensions.Data;
instanceCI.enabledLayerCount = instanceLayers.Count;
instanceCI.ppEnabledLayerNames = (byte **)instanceLayers.Data;
VkResult result = vkCreateInstance(ref instanceCI, null, out _instance);
CheckResult(result);
if (debug && debugReportExtensionAvailable)
{
EnableDebugCallback(VkDebugReportFlagsEXT.WarningEXT | VkDebugReportFlagsEXT.ErrorEXT | VkDebugReportFlagsEXT.PerformanceWarningEXT);
}
}
private VkPipeline CreateNewGraphicsPipeline(ref VkPipelineCacheKey cacheKey)
{
VkGraphicsPipelineCreateInfo pipelineCI = VkGraphicsPipelineCreateInfo.New();
// RenderPass
pipelineCI.renderPass = cacheKey.RenderPass;
pipelineCI.subpass = 0;
pipelineCI.layout = cacheKey.PipelineLayout;
// DynamicState
VkPipelineDynamicStateCreateInfo dynamicStateCI = VkPipelineDynamicStateCreateInfo.New();
VkDynamicState *dynamicStates = stackalloc VkDynamicState[2];
dynamicStates[0] = VkDynamicState.Viewport;
dynamicStates[1] = VkDynamicState.Scissor;
dynamicStateCI.dynamicStateCount = 2;
dynamicStateCI.pDynamicStates = dynamicStates;
pipelineCI.pDynamicState = &dynamicStateCI;
// ColorBlendState
VkPipelineColorBlendAttachmentState colorBlendAttachementState = new VkPipelineColorBlendAttachmentState();
colorBlendAttachementState.colorWriteMask = VkColorComponentFlags.R | VkColorComponentFlags.G | VkColorComponentFlags.B | VkColorComponentFlags.A;
colorBlendAttachementState.blendEnable = cacheKey.BlendState.IsBlendEnabled;
colorBlendAttachementState.srcColorBlendFactor = VkFormats.VeldridToVkBlendFactor(cacheKey.BlendState.SourceColorBlend);
colorBlendAttachementState.dstColorBlendFactor = VkFormats.VeldridToVkBlendFactor(cacheKey.BlendState.DestinationColorBlend);
colorBlendAttachementState.colorBlendOp = VkFormats.VeldridToVkBlendOp(cacheKey.BlendState.ColorBlendFunction);
colorBlendAttachementState.srcAlphaBlendFactor = VkFormats.VeldridToVkBlendFactor(cacheKey.BlendState.SourceAlphaBlend);
colorBlendAttachementState.dstAlphaBlendFactor = VkFormats.VeldridToVkBlendFactor(cacheKey.BlendState.DestinationAlphaBlend);
colorBlendAttachementState.alphaBlendOp = VkFormats.VeldridToVkBlendOp(cacheKey.BlendState.AlphaBlendFunction);
VkPipelineColorBlendStateCreateInfo colorBlendStateCI = VkPipelineColorBlendStateCreateInfo.New();
if (cacheKey.Framebuffer.ColorTexture != null)
{
colorBlendStateCI.attachmentCount = 1;
colorBlendStateCI.pAttachments = &colorBlendAttachementState;
colorBlendStateCI.blendConstants_0 = cacheKey.BlendState.BlendFactor.R;
colorBlendStateCI.blendConstants_1 = cacheKey.BlendState.BlendFactor.G;
colorBlendStateCI.blendConstants_2 = cacheKey.BlendState.BlendFactor.B;
colorBlendStateCI.blendConstants_3 = cacheKey.BlendState.BlendFactor.A;
pipelineCI.pColorBlendState = &colorBlendStateCI;
}
// DepthStencilState
VkPipelineDepthStencilStateCreateInfo depthStencilStateCI = VkPipelineDepthStencilStateCreateInfo.New();
depthStencilStateCI.depthCompareOp = VkFormats.VeldridToVkDepthComparison(cacheKey.DepthStencilState.DepthComparison);
depthStencilStateCI.depthWriteEnable = cacheKey.DepthStencilState.IsDepthWriteEnabled;
depthStencilStateCI.depthTestEnable = cacheKey.DepthStencilState.IsDepthEnabled;
pipelineCI.pDepthStencilState = &depthStencilStateCI;
// MultisampleState
VkPipelineMultisampleStateCreateInfo multisampleStateCI = VkPipelineMultisampleStateCreateInfo.New();
multisampleStateCI.rasterizationSamples = VkSampleCountFlags.Count1;
pipelineCI.pMultisampleState = &multisampleStateCI;
// RasterizationState
VkPipelineRasterizationStateCreateInfo rasterizationStateCI = ((VkRasterizerState)cacheKey.RasterizerState).RasterizerStateCreateInfo;
rasterizationStateCI.lineWidth = 1f;
pipelineCI.pRasterizationState = &rasterizationStateCI;
// ViewportState
VkPipelineViewportStateCreateInfo viewportStateCI = VkPipelineViewportStateCreateInfo.New();
viewportStateCI.viewportCount = 1;
viewportStateCI.scissorCount = 1;
pipelineCI.pViewportState = &viewportStateCI;
// InputAssemblyState
VkPipelineInputAssemblyStateCreateInfo inputAssemblyStateCI = VkPipelineInputAssemblyStateCreateInfo.New();
inputAssemblyStateCI.topology = cacheKey.PrimitiveTopology;
pipelineCI.pInputAssemblyState = &inputAssemblyStateCI;
// VertexInputState
VkPipelineVertexInputStateCreateInfo vertexInputStateCI = VkPipelineVertexInputStateCreateInfo.New();
VertexInputDescription[] inputDescriptions = cacheKey.ShaderSet.InputLayout.InputDescriptions;
uint bindingCount = (uint)inputDescriptions.Length;
uint attributeCount = (uint)inputDescriptions.Sum(desc => desc.Elements.Length);
VkVertexInputBindingDescription * bindingDescs = stackalloc VkVertexInputBindingDescription[(int)bindingCount];
VkVertexInputAttributeDescription *attributeDescs = stackalloc VkVertexInputAttributeDescription[(int)attributeCount];
int targetIndex = 0;
int targetLocation = 0;
for (int binding = 0; binding < inputDescriptions.Length; binding++)
{
VertexInputDescription inputDesc = inputDescriptions[binding];
bindingDescs[targetIndex] = new VkVertexInputBindingDescription()
{
binding = (uint)binding,
inputRate = (inputDesc.Elements[0].StorageClassifier == VertexElementInputClass.PerInstance) ? VkVertexInputRate.Instance : VkVertexInputRate.Vertex,
stride = ((VkVertexBuffer)cacheKey.VertexBindings[binding]).Stride
};
uint currentOffset = 0;
for (int location = 0; location < inputDesc.Elements.Length; location++)
{
VertexInputElement inputElement = inputDesc.Elements[location];
attributeDescs[targetIndex] = new VkVertexInputAttributeDescription()
{
format = VkFormats.VeldridToVkVertexElementFormat(inputElement.ElementFormat),
binding = (uint)binding,
location = (uint)(targetLocation + location),
offset = currentOffset
};
targetIndex += 1;
currentOffset += inputElement.SizeInBytes;
}
targetLocation += inputDesc.Elements.Length;
}
vertexInputStateCI.vertexBindingDescriptionCount = bindingCount;
vertexInputStateCI.pVertexBindingDescriptions = bindingDescs;
vertexInputStateCI.vertexAttributeDescriptionCount = attributeCount;
vertexInputStateCI.pVertexAttributeDescriptions = attributeDescs;
pipelineCI.pVertexInputState = &vertexInputStateCI;
// ShaderStage
StackList <VkPipelineShaderStageCreateInfo> shaderStageCIs = new StackList <VkPipelineShaderStageCreateInfo>();
VkPipelineShaderStageCreateInfo vertexStage = VkPipelineShaderStageCreateInfo.New();
vertexStage.stage = VkShaderStageFlags.Vertex;
vertexStage.module = cacheKey.ShaderSet.VertexShader.ShaderModule;
vertexStage.pName = CommonStrings.main;
shaderStageCIs.Add(vertexStage);
VkPipelineShaderStageCreateInfo fragmentStage = VkPipelineShaderStageCreateInfo.New();
fragmentStage.stage = VkShaderStageFlags.Fragment;
fragmentStage.module = cacheKey.ShaderSet.FragmentShader.ShaderModule;
fragmentStage.pName = CommonStrings.main;
shaderStageCIs.Add(fragmentStage);
if (cacheKey.ShaderSet.TessellationControlShader != null)
{
VkPipelineShaderStageCreateInfo tcStage = VkPipelineShaderStageCreateInfo.New();
tcStage.stage = VkShaderStageFlags.TessellationControl;
tcStage.module = cacheKey.ShaderSet.TessellationControlShader.ShaderModule;
tcStage.pName = CommonStrings.main;
shaderStageCIs.Add(tcStage);
}
if (cacheKey.ShaderSet.TessellationEvaluationShader != null)
{
VkPipelineShaderStageCreateInfo teStage = VkPipelineShaderStageCreateInfo.New();
teStage.stage = VkShaderStageFlags.TessellationEvaluation;
teStage.module = cacheKey.ShaderSet.TessellationEvaluationShader.ShaderModule;
teStage.pName = CommonStrings.main;
shaderStageCIs.Add(teStage);
}
if (cacheKey.ShaderSet.GeometryShader != null)
{
VkPipelineShaderStageCreateInfo geometryStage = VkPipelineShaderStageCreateInfo.New();
geometryStage.stage = VkShaderStageFlags.Geometry;
geometryStage.module = cacheKey.ShaderSet.GeometryShader.ShaderModule;
geometryStage.pName = CommonStrings.main;
shaderStageCIs.Add(geometryStage);
}
pipelineCI.stageCount = shaderStageCIs.Count;
pipelineCI.pStages = (VkPipelineShaderStageCreateInfo *)shaderStageCIs.Data;
VkResult result = vkCreateGraphicsPipelines(_device, VkPipelineCache.Null, 1, ref pipelineCI, null, out VkPipeline ret);
CheckResult(result);
return(ret);
}
