read_state_slot()

VKBufferResources::GenerationSlot MayaFlux::Buffers::NetworkGeometryBuffer::read_state_slot

(

const std::string &

name

)

const

Full back_buffers slot a stage should read the named state field from.

Returns

The slot, or a default-constructed (null-handle) slot if undeclared.

Same resolution as read_state_handle, without narrowing to just the Vulkan handle: a CPU-side readback through StagingUtils::download_back_buffer needs the whole slot (it checks mapped_ptr for the host-visible fast path), not only .buffer. Returned by value since GenerationSlot is three handles wide.

Definition at line 380 of file NetworkGeometryBuffer.cpp.

{
    const auto* field = find_state_field(name, "read_state_slot");
    if (!field) {
        return {};
    }
 
    const uint32_t slot = field->read_is_a ? field->slot_a : field->slot_b;
    return get_buffer_resources().back_buffers[slot];
}

References MayaFlux::Buffers::VKBufferResources::back_buffers, find_state_field(), MayaFlux::Buffers::VKBuffer::get_buffer_resources(), and name.

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