bind_descriptor() [1/2]

void MayaFlux::Buffers::FormaBindingsProcessor::bind_descriptor	(	const std::string &	name,
		std::function< float()>	reader,
		const std::string &	descriptor_name,
		uint32_t	binding_index,
		uint32_t	set,
		Portal::Graphics::DescriptorRole	role = Portal::Graphics::DescriptorRole::UNIFORM
	)

Bind a type-erased reader to a descriptor binding.

Used by Bridge for the same reason as the push constant raw overload.

Parameters

name	Logical binding name.
reader	Callable returning the current float value each tick.
descriptor_name	Descriptor name in the shader config.
binding_index	Vulkan binding index within the descriptor set.
set	Descriptor set index.
role	UNIFORM for UBO, STORAGE for SSBO.

Definition at line 38 of file FormaBindingsProcessor.cpp.

{
    if (!reader) {
        MF_ERROR(Journal::Component::Buffers, Journal::Context::BufferProcessing,
            "FormaBindingsProcessor::bind_descriptor: null reader for '{}'", name);
        return;
    }
 
    auto& b = m_bindings[name];
    b.kind = TargetKind::DESCRIPTOR;
    b.reader = std::move(reader);
    b.pc.reset();
 
    auto gpu_buf = make_descriptor_buffer(role);
 
    b.desc = DescriptorTarget {
        .descriptor_name = descriptor_name,
        .set_index = set,
        .binding_index = binding_index,
        .role = role,
        .gpu_buffer = gpu_buf,
        .buffer_size = sizeof(float),
    };
 
    bind_buffer(descriptor_name, gpu_buf);
    m_needs_descriptor_rebuild = true;
}

References b, MayaFlux::Buffers::ShaderProcessor::bind_buffer(), MayaFlux::Journal::BufferProcessing, MayaFlux::Journal::Buffers, DESCRIPTOR, MayaFlux::Buffers::FormaBindingsProcessor::DescriptorTarget::descriptor_name, m_bindings, MayaFlux::Buffers::ShaderProcessor::m_needs_descriptor_rebuild, make_descriptor_buffer(), and MF_ERROR.

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