public unsafe InlineUniformBlock(ShaderResourceInfo resourceInfo)
{
this.resourceInfo = resourceInfo;
this.size = resourceInfo.size;
this.data = Utilities.Alloc((int)this.size);
inlineUniformBlockEXT = (VkWriteDescriptorSetInlineUniformBlockEXT *)Utilities.Alloc <VkWriteDescriptorSetInlineUniformBlockEXT>();
inlineUniformBlockEXT->sType = VkStructureType.WriteDescriptorSetInlineUniformBlockEXT;
inlineUniformBlockEXT->pNext = null;
inlineUniformBlockEXT->pData = (void *)this.data;
inlineUniformBlockEXT->dataSize = this.size;
}
public static ShaderReflection ReflectionShaderModule(string source, IntPtr bytecode, uint len)
{
ShaderReflection refl = new ShaderReflection();
refl.descriptorSets = new List <ShaderResourceInfo>();
using (var context = new SharpSPIRVCross.Context())
{
var ir = context.ParseIr(bytecode, len);
var compiler = context.CreateCompiler(Backend.GLSL, ir);
var caps = compiler.GetDeclaredCapabilities();
var extensions = compiler.GetDeclaredExtensions();
var resources = compiler.CreateShaderResources();
Action <SharpSPIRVCross.ResourceType> CollectShaderResources = (SharpSPIRVCross.ResourceType resourceType) =>
{
if (resourceType == SharpSPIRVCross.ResourceType.PushConstant)
{
foreach (var rs in resources.GetResources(resourceType))
{
var set = compiler.GetDecoration(rs.Id, SpvDecoration.DescriptorSet);
var binding = compiler.GetDecoration(rs.Id, SpvDecoration.Binding);
var type = compiler.GetSpirvType(rs.TypeId);
if (type.MemberCount > 0)
{
refl.pushConstants = new List <BufferMember>();
compiler.GetDeclaredStructSize(type, out int size);
//Console.WriteLine($" struct, size:{size}");
//u.size = (uint)size;
for (int i = 0; i < type.MemberCount; i++)
{
var memberName = compiler.GetMemberName(rs.BaseTypeId, (uint)i);
compiler.GetStructMemberOffset(type, i, out int offset);
compiler.GetDeclaredStructMemberSize(type, i, out int memberSize);
//Console.WriteLine($" Member Name:{memberName}, Offset:{offset}, size：{memberSize}");
refl.pushConstants.Add(new BufferMember {
name = memberName, offset = offset, size = memberSize
});
}
}
}
return;
}
foreach (var rs in resources.GetResources(resourceType))
{
//Console.WriteLine($"ID: {rs.Id}, BaseTypeID: {rs.BaseTypeId}, TypeID: {rs.TypeId}, Name: {rs.Name})");
var set = compiler.GetDecoration(rs.Id, SpvDecoration.DescriptorSet);
var binding = compiler.GetDecoration(rs.Id, SpvDecoration.Binding);
var type = compiler.GetSpirvType(rs.TypeId);
//Console.WriteLine($" Set: {set}, Binding: {binding}");
bool isDynamic = rs.Name.EndsWith("dynamic", StringComparison.CurrentCultureIgnoreCase);
bool isInline = rs.Name.EndsWith("inline", StringComparison.CurrentCultureIgnoreCase);
var descriptorType = resourceType switch
{
SharpSPIRVCross.ResourceType.UniformBuffer => isInline ? VkDescriptorType.InlineUniformBlockEXT
:(isDynamic ? VkDescriptorType.UniformBufferDynamic : VkDescriptorType.UniformBuffer),
SharpSPIRVCross.ResourceType.StorageBuffer => isDynamic ? VkDescriptorType.StorageBufferDynamic : VkDescriptorType.StorageBuffer,
SharpSPIRVCross.ResourceType.StageInput => throw new NotImplementedException(),
SharpSPIRVCross.ResourceType.StageOutput => throw new NotImplementedException(),
SharpSPIRVCross.ResourceType.SubpassInput => VkDescriptorType.InputAttachment,
SharpSPIRVCross.ResourceType.StorageImage => type.ImageDimension == SpvDim.DimBuffer ? VkDescriptorType.StorageTexelBuffer : VkDescriptorType.StorageImage,
SharpSPIRVCross.ResourceType.SampledImage => VkDescriptorType.CombinedImageSampler,
SharpSPIRVCross.ResourceType.AtomicCounter => throw new NotImplementedException(),
SharpSPIRVCross.ResourceType.PushConstant => throw new NotImplementedException(),
SharpSPIRVCross.ResourceType.SeparateImage => VkDescriptorType.SampledImage,
SharpSPIRVCross.ResourceType.SeparateSamplers => VkDescriptorType.Sampler,
SharpSPIRVCross.ResourceType.AccelerationStructure => throw new NotImplementedException(),
_ => throw new NotImplementedException(),
};
var u = new ShaderResourceInfo
{
name = rs.Name,
set = (int)set,
binding = binding,
descriptorType = descriptorType
};
if (type.MemberCount > 0)
{
u.members = new List <BufferMember>();
compiler.GetDeclaredStructSize(type, out int size);
//Console.WriteLine($" struct, size:{size}");
u.size = (uint)size;
for (int i = 0; i < type.MemberCount; i++)
{
var memberName = compiler.GetMemberName(rs.BaseTypeId, (uint)i);
compiler.GetStructMemberOffset(type, i, out int offset);
compiler.GetDeclaredStructMemberSize(type, i, out int memberSize);
//Console.WriteLine($" Member Name:{memberName}, Offset:{offset}, size：{memberSize}");
// compiler.GetStructMemberArrayStride(type, i, out int sz);
// compiler.GetStructMemberMatrixStride(type, i, out int stride);
// Console.WriteLine($" ArrayStride:{sz}, MatrixStride:{stride}");
u.members.Add(new BufferMember {
name = memberName, offset = offset, size = memberSize
});
}
}
refl.descriptorSets.Add(u);
}
