upload_back_buffers()

void MayaFlux::Buffers::BufferUploadProcessor::upload_back_buffers ( const std::shared_ptr< VKBuffer > &  target )

private

Definition at line 189 of file BufferUploadProcessor.cpp.

{
    auto it = m_back_buffers_source_map.find(std::static_pointer_cast<Buffer>(target));
    if (it == m_back_buffers_source_map.end()) {
        return;
    }
 
    auto& sources = it->second;
    auto& resources = target->get_buffer_resources();
 
    if (sources.size() != resources.back_buffers.size()) {
        MF_RT_ERROR(Journal::Component::Buffers, Journal::Context::BufferProcessing,
            "upload_back_buffers: {} sources configured, {} entries present",
            sources.size(), resources.back_buffers.size());
        return;
    }
 
    for (size_t i = 0; i < resources.back_buffers.size(); ++i) {
        const auto& entry = resources.back_buffers[i];
 
        if (!entry.mapped_ptr) {
            MF_RT_ERROR(Journal::Component::Buffers, Journal::Context::BufferProcessing,
                "upload_back_buffers: entry {} is not host-visible, unsupported", i);
            continue;
        }
 
        auto source_vk = std::dynamic_pointer_cast<VKBuffer>(sources[i]);
        if (!source_vk) {
            MF_RT_ERROR(Journal::Component::Buffers, Journal::Context::BufferProcessing,
                "upload_back_buffers: source {} is not a VKBuffer", i);
            continue;
        }
 
        auto source_data = source_vk->get_data();
        if (source_data.empty()) {
            MF_RT_WARN(Journal::Component::Buffers, Journal::Context::BufferProcessing,
                "upload_back_buffers: source {} has no data to upload", i);
            continue;
        }
 
        Kakshya::DataAccess accessor(source_data[0], {}, source_vk->get_modality());
        auto [ptr, bytes, format_hint] = accessor.gpu_buffer();
        std::memcpy(entry.mapped_ptr, ptr, bytes);
    }
}

References MayaFlux::Journal::BufferProcessing, MayaFlux::Journal::Buffers, MayaFlux::Kakshya::DataAccess::gpu_buffer(), m_back_buffers_source_map, MF_RT_ERROR, MF_RT_WARN, and ptr.

Referenced by processing_function().

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