private unsafe void CreatePipelineLayout(PipelineStateDescription pipelineStateDescription) { // Remap descriptor set indices to those in the shader. This ordering generated by the ShaderCompiler var resourceGroups = pipelineStateDescription.EffectBytecode.Reflection.ResourceBindings.Select(x => x.ResourceGroup ?? "Globals").Distinct().ToList(); ResourceGroupCount = resourceGroups.Count; var layouts = pipelineStateDescription.RootSignature.EffectDescriptorSetReflection.Layouts; // Get binding indices used by the shader var destinationBindings = pipelineStateDescription.EffectBytecode.Stages .SelectMany(x => BinarySerialization.Read <ShaderInputBytecode>(x.Data).ResourceBindings) .GroupBy(x => x.Key, x => x.Value) .ToDictionary(x => x.Key, x => x.First()); var maxBindingIndex = destinationBindings.Max(x => x.Value); var destinationEntries = new DescriptorSetLayoutBuilder.Entry[maxBindingIndex + 1]; DescriptorBindingMapping = new List <DescriptorSetInfo>(); for (int i = 0; i < resourceGroups.Count; i++) { var resourceGroupName = resourceGroups[i] == "Globals" ? pipelineStateDescription.RootSignature.EffectDescriptorSetReflection.DefaultSetSlot : resourceGroups[i]; var layoutIndex = resourceGroups[i] == null ? 0 : layouts.FindIndex(x => x.Name == resourceGroupName); // Check if the resource group is used by the shader if (layoutIndex == -1) { continue; } var sourceEntries = layouts[layoutIndex].Layout.Entries; for (int sourceBinding = 0; sourceBinding < sourceEntries.Count; sourceBinding++) { var sourceEntry = sourceEntries[sourceBinding]; int destinationBinding; if (destinationBindings.TryGetValue(sourceEntry.Key.Name, out destinationBinding)) { destinationEntries[destinationBinding] = sourceEntry; // No need to umpdate immutable samplers if (sourceEntry.Class == EffectParameterClass.Sampler && sourceEntry.ImmutableSampler != null) { continue; } DescriptorBindingMapping.Add(new DescriptorSetInfo { SourceSet = layoutIndex, SourceBinding = sourceBinding, DestinationBinding = destinationBinding, DescriptorType = VulkanConvertExtensions.ConvertDescriptorType(sourceEntry.Class, sourceEntry.Type) }); } } } // Create default sampler, used by texture and buffer loads destinationEntries[0] = new DescriptorSetLayoutBuilder.Entry { Class = EffectParameterClass.Sampler, Type = EffectParameterType.Sampler, ImmutableSampler = GraphicsDevice.SamplerStates.PointWrap, ArraySize = 1, }; // Create descriptor set layout NativeDescriptorSetLayout = DescriptorSetLayout.CreateNativeDescriptorSetLayout(GraphicsDevice, destinationEntries, out DescriptorTypeCounts); // Create pipeline layout var nativeDescriptorSetLayout = NativeDescriptorSetLayout; var pipelineLayoutCreateInfo = new PipelineLayoutCreateInfo { StructureType = StructureType.PipelineLayoutCreateInfo, SetLayoutCount = 1, SetLayouts = new IntPtr(&nativeDescriptorSetLayout) }; NativeLayout = GraphicsDevice.NativeDevice.CreatePipelineLayout(ref pipelineLayoutCreateInfo); }
private unsafe void CreatePipelineLayout(PipelineStateDescription pipelineStateDescription) { // Remap descriptor set indices to those in the shader. This ordering generated by the ShaderCompiler var resourceGroups = pipelineStateDescription.EffectBytecode.Reflection.ResourceBindings.Select(x => x.ResourceGroup ?? "Globals").Distinct().ToList(); ResourceGroupCount = resourceGroups.Count; var layouts = pipelineStateDescription.RootSignature.EffectDescriptorSetReflection.Layouts; // Get binding indices used by the shader var destinationBindings = pipelineStateDescription.EffectBytecode.Stages .SelectMany(x => BinarySerialization.Read<ShaderInputBytecode>(x.Data).ResourceBindings) .GroupBy(x => x.Key, x => x.Value) .ToDictionary(x => x.Key, x => x.First()); var maxBindingIndex = destinationBindings.Max(x => x.Value); var destinationEntries = new DescriptorSetLayoutBuilder.Entry[maxBindingIndex + 1]; DescriptorBindingMapping = new List<DescriptorSetInfo>(); for (int i = 0; i < resourceGroups.Count; i++) { var resourceGroupName = resourceGroups[i] == "Globals" ? pipelineStateDescription.RootSignature.EffectDescriptorSetReflection.DefaultSetSlot : resourceGroups[i]; var layoutIndex = resourceGroups[i] == null ? 0 : layouts.FindIndex(x => x.Name == resourceGroupName); // Check if the resource group is used by the shader if (layoutIndex == -1) continue; var sourceEntries = layouts[layoutIndex].Layout.Entries; for (int sourceBinding = 0; sourceBinding < sourceEntries.Count; sourceBinding++) { var sourceEntry = sourceEntries[sourceBinding]; int destinationBinding; if (destinationBindings.TryGetValue(sourceEntry.Key.Name, out destinationBinding)) { destinationEntries[destinationBinding] = sourceEntry; // No need to umpdate immutable samplers if (sourceEntry.Class == EffectParameterClass.Sampler && sourceEntry.ImmutableSampler != null) { continue; } DescriptorBindingMapping.Add(new DescriptorSetInfo { SourceSet = layoutIndex, SourceBinding = sourceBinding, DestinationBinding = destinationBinding, DescriptorType = VulkanConvertExtensions.ConvertDescriptorType(sourceEntry.Class, sourceEntry.Type) }); } } } // Create default sampler, used by texture and buffer loads destinationEntries[0] = new DescriptorSetLayoutBuilder.Entry { Class = EffectParameterClass.Sampler, Type = EffectParameterType.Sampler, ImmutableSampler = GraphicsDevice.SamplerStates.PointWrap, ArraySize = 1, }; // Create descriptor set layout NativeDescriptorSetLayout = DescriptorSetLayout.CreateNativeDescriptorSetLayout(GraphicsDevice, destinationEntries, out DescriptorTypeCounts); // Create pipeline layout var nativeDescriptorSetLayout = NativeDescriptorSetLayout; var pipelineLayoutCreateInfo = new PipelineLayoutCreateInfo { StructureType = StructureType.PipelineLayoutCreateInfo, SetLayoutCount = 1, SetLayouts = new IntPtr(&nativeDescriptorSetLayout) }; NativeLayout = GraphicsDevice.NativeDevice.CreatePipelineLayout(ref pipelineLayoutCreateInfo); }