chore: remove all graphics backends (Raylib, OpenTK, Vulkan/Silk.NET) — prepare for pure Vulkan P/Invoke rewrite
This commit is contained in:
emil28092005
@@ -1,306 +0,0 @@
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using System;
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using Silk.NET.Core.Native;
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using Silk.NET.Vulkan;
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namespace Engine.Graphics;
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/// <summary>
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/// Graphics pipeline for indexed meshes with push-constant MVP and depth testing.
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/// Uses Silk.NET.Vulkan.
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/// </summary>
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public sealed unsafe class VulkanPipeline : IDisposable
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{
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private readonly VulkanContext _context;
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private readonly Swapchain _swapchain;
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public Pipeline Handle { get; }
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public PipelineLayout Layout { get; }
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public DescriptorSetLayout FrameDescriptorSetLayout { get; }
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public DescriptorSetLayout TextureDescriptorSetLayout { get; }
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private readonly ShaderModule _vertexModule;
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private readonly ShaderModule _fragmentModule;
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public VulkanPipeline(VulkanContext context, Swapchain swapchain)
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{
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_context = context;
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_swapchain = swapchain;
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_vertexModule = CreateShaderModule("vertex.spv");
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_fragmentModule = CreateShaderModule("fragment.spv");
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FrameDescriptorSetLayout = CreateFrameDescriptorSetLayout();
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TextureDescriptorSetLayout = CreateTextureDescriptorSetLayout();
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Layout = CreatePipelineLayout();
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Handle = CreateGraphicsPipeline();
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}
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private ShaderModule CreateShaderModule(string resourceName)
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{
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var code = ShaderLoader.Load(resourceName);
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if (code.Length % 4 != 0)
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throw new InvalidOperationException($"Shader {resourceName} size is not a multiple of 4.");
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fixed (byte* pCode = code)
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{
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var createInfo = new ShaderModuleCreateInfo
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{
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SType = StructureType.ShaderModuleCreateInfo,
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CodeSize = (nuint)code.Length,
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PCode = (uint*)pCode
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};
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ShaderModule module;
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var result = _context.Vk.CreateShaderModule(_context.Device, &createInfo, null, &module);
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if (result != Result.Success)
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throw new InvalidOperationException($"vkCreateShaderModule failed for {resourceName}: {result}");
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return module;
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}
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}
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private DescriptorSetLayout CreateFrameDescriptorSetLayout()
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{
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var binding = new DescriptorSetLayoutBinding
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{
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Binding = 0,
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DescriptorType = DescriptorType.UniformBuffer,
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DescriptorCount = 1,
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StageFlags = ShaderStageFlags.VertexBit | ShaderStageFlags.FragmentBit
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};
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var createInfo = new DescriptorSetLayoutCreateInfo
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{
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SType = StructureType.DescriptorSetLayoutCreateInfo,
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BindingCount = 1,
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PBindings = &binding
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};
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DescriptorSetLayout layout;
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var result = _context.Vk.CreateDescriptorSetLayout(_context.Device, &createInfo, null, &layout);
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if (result != Result.Success)
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throw new InvalidOperationException($"vkCreateDescriptorSetLayout failed: {result}");
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return layout;
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}
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private DescriptorSetLayout CreateTextureDescriptorSetLayout()
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{
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var binding = new DescriptorSetLayoutBinding
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{
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Binding = 0,
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DescriptorType = DescriptorType.CombinedImageSampler,
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DescriptorCount = 1,
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StageFlags = ShaderStageFlags.FragmentBit
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};
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var createInfo = new DescriptorSetLayoutCreateInfo
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{
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SType = StructureType.DescriptorSetLayoutCreateInfo,
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BindingCount = 1,
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PBindings = &binding
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};
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DescriptorSetLayout layout;
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var result = _context.Vk.CreateDescriptorSetLayout(_context.Device, &createInfo, null, &layout);
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if (result != Result.Success)
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throw new InvalidOperationException($"vkCreateDescriptorSetLayout (texture) failed: {result}");
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return layout;
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}
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private PipelineLayout CreatePipelineLayout()
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{
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var pushConstantRange = new PushConstantRange
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{
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StageFlags = ShaderStageFlags.VertexBit | ShaderStageFlags.FragmentBit,
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Offset = 0,
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Size = 96
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};
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var setLayouts = stackalloc DescriptorSetLayout[] { FrameDescriptorSetLayout, TextureDescriptorSetLayout };
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var createInfo = new PipelineLayoutCreateInfo
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{
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SType = StructureType.PipelineLayoutCreateInfo,
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SetLayoutCount = 2,
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PSetLayouts = setLayouts,
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PushConstantRangeCount = 1,
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PPushConstantRanges = &pushConstantRange
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};
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PipelineLayout layout;
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var result = _context.Vk.CreatePipelineLayout(_context.Device, &createInfo, null, &layout);
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if (result != Result.Success)
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throw new InvalidOperationException($"vkCreatePipelineLayout failed: {result}");
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return layout;
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}
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private Pipeline CreateGraphicsPipeline()
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{
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var entryName = SilkMarshal.StringToPtr("main", NativeStringEncoding.UTF8);
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var stages = new[]
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{
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new PipelineShaderStageCreateInfo
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{
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SType = StructureType.PipelineShaderStageCreateInfo,
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Stage = ShaderStageFlags.VertexBit,
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Module = _vertexModule,
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PName = (byte*)entryName
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},
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new PipelineShaderStageCreateInfo
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{
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SType = StructureType.PipelineShaderStageCreateInfo,
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Stage = ShaderStageFlags.FragmentBit,
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Module = _fragmentModule,
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PName = (byte*)entryName
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}
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};
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var bindingDescription = new VertexInputBindingDescription
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{
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Binding = 0,
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Stride = (uint)(9 * sizeof(float)),
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InputRate = VertexInputRate.Vertex
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};
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var attributeDescriptions = new[]
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{
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new VertexInputAttributeDescription
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{
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Binding = 0,
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Location = 0,
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Format = Format.R32G32B32Sfloat,
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Offset = 0
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},
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new VertexInputAttributeDescription
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{
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Binding = 0,
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Location = 1,
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Format = Format.R32G32B32Sfloat,
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Offset = (uint)(3 * sizeof(float))
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},
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new VertexInputAttributeDescription
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{
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Binding = 0,
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Location = 2,
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Format = Format.R32G32B32Sfloat,
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Offset = (uint)(6 * sizeof(float))
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}
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};
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PipelineVertexInputStateCreateInfo vertexInputInfo;
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fixed (VertexInputAttributeDescription* pAttributes = attributeDescriptions)
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{
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vertexInputInfo = new PipelineVertexInputStateCreateInfo
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{
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SType = StructureType.PipelineVertexInputStateCreateInfo,
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VertexBindingDescriptionCount = 1,
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PVertexBindingDescriptions = &bindingDescription,
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VertexAttributeDescriptionCount = (uint)attributeDescriptions.Length,
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PVertexAttributeDescriptions = pAttributes
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};
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}
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var inputAssembly = new PipelineInputAssemblyStateCreateInfo
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{
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SType = StructureType.PipelineInputAssemblyStateCreateInfo,
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Topology = PrimitiveTopology.TriangleList,
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PrimitiveRestartEnable = false
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};
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var viewportState = new PipelineViewportStateCreateInfo
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{
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SType = StructureType.PipelineViewportStateCreateInfo,
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ViewportCount = 1,
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ScissorCount = 1
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};
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var rasterizer = new PipelineRasterizationStateCreateInfo
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{
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SType = StructureType.PipelineRasterizationStateCreateInfo,
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PolygonMode = PolygonMode.Fill,
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CullMode = CullModeFlags.None,
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FrontFace = FrontFace.Clockwise,
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LineWidth = 1.0f
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};
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var multisampling = new PipelineMultisampleStateCreateInfo
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{
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SType = StructureType.PipelineMultisampleStateCreateInfo,
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RasterizationSamples = SampleCountFlags.Count1Bit,
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SampleShadingEnable = false
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};
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var colorBlendAttachment = new PipelineColorBlendAttachmentState
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{
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ColorWriteMask = ColorComponentFlags.RBit | ColorComponentFlags.GBit | ColorComponentFlags.BBit | ColorComponentFlags.ABit
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};
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var colorBlending = new PipelineColorBlendStateCreateInfo
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{
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SType = StructureType.PipelineColorBlendStateCreateInfo,
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AttachmentCount = 1,
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PAttachments = &colorBlendAttachment
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};
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var depthStencil = new PipelineDepthStencilStateCreateInfo
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{
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SType = StructureType.PipelineDepthStencilStateCreateInfo,
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DepthTestEnable = true,
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DepthWriteEnable = true,
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DepthCompareOp = CompareOp.Less,
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DepthBoundsTestEnable = false,
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StencilTestEnable = false,
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Back = new StencilOpState(),
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Front = new StencilOpState()
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};
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var dynamicStates = new[] { DynamicState.Viewport, DynamicState.Scissor };
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PipelineDynamicStateCreateInfo dynamicState;
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fixed (DynamicState* pDynamic = dynamicStates)
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{
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dynamicState = new PipelineDynamicStateCreateInfo
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{
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SType = StructureType.PipelineDynamicStateCreateInfo,
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DynamicStateCount = (uint)dynamicStates.Length,
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PDynamicStates = pDynamic
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};
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}
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Pipeline pipeline;
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fixed (PipelineShaderStageCreateInfo* pStages = stages)
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{
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var createInfo = new GraphicsPipelineCreateInfo
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{
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SType = StructureType.GraphicsPipelineCreateInfo,
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StageCount = (uint)stages.Length,
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PStages = pStages,
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PVertexInputState = &vertexInputInfo,
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PInputAssemblyState = &inputAssembly,
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PViewportState = &viewportState,
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PRasterizationState = &rasterizer,
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PMultisampleState = &multisampling,
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PDepthStencilState = &depthStencil,
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PColorBlendState = &colorBlending,
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PDynamicState = &dynamicState,
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Layout = Layout,
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RenderPass = _swapchain.RenderPass,
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Subpass = 0
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};
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var result = _context.Vk.CreateGraphicsPipelines(_context.Device, default, 1, &createInfo, null, &pipeline);
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if (result != Result.Success)
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throw new InvalidOperationException($"vkCreateGraphicsPipelines failed: {result}");
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}
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SilkMarshal.FreeString(entryName, NativeStringEncoding.UTF8);
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return pipeline;
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}
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public void Dispose()
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{
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_context.Vk.DeviceWaitIdle(_context.Device);
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_context.Vk.DestroyPipeline(_context.Device, Handle, null);
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_context.Vk.DestroyPipelineLayout(_context.Device, Layout, null);
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_context.Vk.DestroyDescriptorSetLayout(_context.Device, FrameDescriptorSetLayout, null);
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_context.Vk.DestroyDescriptorSetLayout(_context.Device, TextureDescriptorSetLayout, null);
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_context.Vk.DestroyShaderModule(_context.Device, _vertexModule, null);
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_context.Vk.DestroyShaderModule(_context.Device, _fragmentModule, null);
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}
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}
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