update_descriptor_from_node()

void MayaFlux::Buffers::DescriptorBindingsProcessor::update_descriptor_from_node ( DescriptorBinding &  binding )

private

Update descriptor from node context.

Definition at line 234 of file DescriptorBindingsProcessor.cpp.

{
    if (!binding.node) {
        MF_RT_ERROR(Journal::Component::Buffers, Journal::Context::BufferProcessing,
            "Binding has null node");
        return;
    }
 
    Nodes::NodeContext& ctx = binding.node->get_last_context();
 
    switch (binding.binding_type) {
    case BindingType::SCALAR: {
        auto value = static_cast<float>(binding.node->get_last_output());
        ensure_buffer_capacity(binding, sizeof(float));
 
        upload_to_gpu(&value, sizeof(float), binding.gpu_buffer, nullptr);
        break;
    }
 
    case BindingType::VECTOR: {
        auto* gpu_vec = dynamic_cast<Nodes::GpuVectorData*>(&ctx);
        if (!gpu_vec || !gpu_vec->has_gpu_data()) {
            MF_RT_ERROR(Journal::Component::Buffers, Journal::Context::BufferProcessing,
                "Node context does not provide GpuVectorData");
            return;
        }
 
        auto data = gpu_vec->gpu_data();
 
        ensure_buffer_capacity(binding, data.size_bytes());
        upload_to_gpu(data.data(), data.size_bytes(), binding.gpu_buffer, nullptr);
        break;
    }
 
    case BindingType::MATRIX: {
        auto* gpu_mat = dynamic_cast<Nodes::GpuMatrixData*>(&ctx);
        if (!gpu_mat || !gpu_mat->has_gpu_data()) {
            MF_RT_ERROR(Journal::Component::Buffers, Journal::Context::BufferProcessing,
                "Node context does not provide GpuMatrixData");
            return;
        }
 
        auto data = gpu_mat->gpu_data();
        ensure_buffer_capacity(binding, data.size_bytes());
        upload_to_gpu(data.data(), data.size_bytes(), binding.gpu_buffer, nullptr);
        break;
    }
 
    case BindingType::STRUCTURED: {
        auto* gpu_struct = dynamic_cast<Nodes::GpuStructuredData*>(&ctx);
        if (!gpu_struct || !gpu_struct->has_gpu_data()) {
            MF_RT_ERROR(Journal::Component::Buffers, Journal::Context::BufferProcessing,
                "Node context does not provide GpuStructuredData");
            return;
        }
 
        auto data = gpu_struct->gpu_data();
        ensure_buffer_capacity(binding, data.size_bytes());
        upload_to_gpu(data.data(), data.size_bytes(), binding.gpu_buffer, nullptr);
        break;
    }
    }
}

References MayaFlux::Buffers::DescriptorBindingsProcessor::DescriptorBinding::binding_type, MayaFlux::Journal::BufferProcessing, MayaFlux::Journal::Buffers, ensure_buffer_capacity(), MayaFlux::Buffers::DescriptorBindingsProcessor::DescriptorBinding::gpu_buffer, MATRIX, MF_RT_ERROR, MayaFlux::Buffers::DescriptorBindingsProcessor::DescriptorBinding::node, SCALAR, STRUCTURED, MayaFlux::Buffers::upload_to_gpu(), and VECTOR.

Referenced by execute_shader().

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