bind_audio_buffer()

void MayaFlux::Buffers::DescriptorBindingsProcessor::bind_audio_buffer	(	const std::string &	name,
		const std::shared_ptr< AudioBuffer > &	buffer,
		const std::string &	descriptor_name,
		uint32_t	set,
		Portal::Graphics::DescriptorRole	role = Portal::Graphics::DescriptorRole::STORAGE
	)

Bind an AudioBuffer as a descriptor source.

Reads the buffer's double sample data each cycle, converts to float, and uploads to the descriptor. Always treated as VECTOR binding.

Parameters

name	Logical binding name
buffer	AudioBuffer to read from
descriptor_name	Name in shader config bindings
set	Descriptor set index
role	Descriptor role (default: STORAGE)

Definition at line 221 of file DescriptorBindingsProcessor.cpp.

{
    if (!buffer) {
        MF_ERROR(Journal::Component::Buffers, Journal::Context::BufferProcessing,
            "Cannot bind null AudioBuffer '{}'", name);
        return;
    }
 
    if (m_config.bindings.find(descriptor_name) == m_config.bindings.end()) {
        MF_ERROR(Journal::Component::Buffers, Journal::Context::BufferProcessing,
            "Descriptor '{}' not found in shader config", descriptor_name);
        return;
    }
 
    const auto& binding_config = m_config.bindings[descriptor_name];
    size_t initial_size = buffer->get_num_samples() * sizeof(float);
    auto gpu_buffer = create_descriptor_buffer(initial_size, role);
 
    auto [it, inserted] = m_bindings.try_emplace(name);
    auto& binding = it->second;
 
    binding.buffer = buffer;
    binding.descriptor_name = descriptor_name;
    binding.set_index = set;
    binding.binding_index = binding_config.binding;
    binding.role = role;
    binding.binding_type = BindingType::VECTOR;
    binding.source_type = SourceType::AUDIO_BUFFER;
    binding.gpu_buffer = gpu_buffer;
    binding.buffer_offset = 0;
    binding.buffer_size = initial_size;
 
    bind_buffer(descriptor_name, gpu_buffer);
    m_needs_descriptor_rebuild = true;
 
    MF_DEBUG(Journal::Component::Buffers, Journal::Context::BufferProcessing,
        "Bound AudioBuffer '{}' to descriptor '{}' ({} samples)",
        name, descriptor_name, buffer->get_num_samples());
}

References AUDIO_BUFFER, MayaFlux::Buffers::ShaderProcessor::bind_buffer(), MayaFlux::Buffers::ShaderConfig::bindings, MayaFlux::Journal::BufferProcessing, MayaFlux::Journal::Buffers, create_descriptor_buffer(), m_bindings, MayaFlux::Buffers::ShaderProcessor::m_config, MayaFlux::Buffers::ShaderProcessor::m_needs_descriptor_rebuild, MF_DEBUG, MF_ERROR, and VECTOR.

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