on_after_execute()

void MayaFlux::Buffers::RelaxationStepProcessor::on_after_execute ( Portal::Graphics::CommandBufferID  cmd_id, const std::shared_ptr< VKBuffer > &  buffer  )

overrideprotectedvirtual

Swap front/back generation index and, if requested, snapshot the newly-front state buffer via a direct host-visible read.

Parameters

cmd_id	Command buffer the completed dispatch was recorded into.
buffer	The attached RelaxationGridBuffer, received as VKBuffer.

Reimplemented from MayaFlux::Buffers::ShaderProcessor.

Definition at line 109 of file RelaxationStepProcessor.cpp.

{
    auto grid = std::dynamic_pointer_cast<RelaxationGridBuffer>(buffer);
    if (!grid) {
        return;
    }
 
    grid->swap_generation();
 
    if (!grid->consume_snapshot_request()) {
        return;
    }
 
    const auto& front = grid->get_buffer_resources().back_buffers[grid->front_index()];
 
    std::vector<uint8_t> bytes(grid->get_state_bytes());
    download_back_buffer(front, bytes.data(), bytes.size(), m_snapshot_staging);
 
    grid->snapshot_source()->signal(bytes);
}

References MayaFlux::Buffers::download_back_buffer(), and m_snapshot_staging.

Here is the call graph for this function: