resolve_ds_index()

std::optional< uint32_t > MayaFlux::Buffers::ShaderProcessor::resolve_ds_index ( uint32_t  set ) const

protected

Resolve logical descriptor set index to actual index.

Parameters

set	Logical set index from ShaderBinding

Returns

Resolved set index, or std::nullopt if invalid

Handles cases where the engine reserves set 0 for global resources. If m_engine_owns_set_zero is true, logical set 0 maps to no descriptor, and logical sets are offset by +1 in the actual descriptor sets.

Definition at line 384 of file ShaderProcessor.cpp.

{
    if (m_engine_owns_set_zero) {
        if (set == 0)
            return std::nullopt;
        const uint32_t idx = set - 1;
        if (idx >= m_descriptor_set_ids.size())
            return std::nullopt;
        return idx;
    }
    if (set >= m_descriptor_set_ids.size())
        return std::nullopt;
    return set;
}

References m_descriptor_set_ids, and m_engine_owns_set_zero.

Referenced by MayaFlux::Buffers::RenderProcessor::bind_texture(), MayaFlux::Buffers::RenderProcessor::execute_shader(), MayaFlux::Buffers::RenderProcessor::initialize_descriptors(), and update_descriptors().

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