upload_index_data()

void MayaFlux::Buffers::GeometryBindingsProcessor::upload_index_data ( const std::string &  name, GeometryBinding &  binding  )

private

Upload index data for one binding, creating or growing the GPU index buffer as needed.

Parameters

name	Logical binding name (for diagnostics only).
binding	Binding to operate on.

Definition at line 226 of file GeometryBindingsProcessor.cpp.

{
    if (!binding.node->has_indices()) {
        return;
    }
 
    const auto indices = binding.node->get_index_data();
    const size_t required = indices.size_bytes();
 
    if (required == 0) {
        return;
    }
 
    if (!binding.gpu_index_buffer) {
        binding.gpu_index_buffer = std::make_shared<VKBuffer>(
            required,
            VKBuffer::Usage::INDEX,
            Kakshya::DataModality::UNKNOWN);
 
        ensure_initialized(binding.gpu_index_buffer);
 
        binding.index_staging_buffer = create_staging_buffer(required);
 
        MF_DEBUG(Journal::Component::Buffers, Journal::Context::BufferProcessing,
            "Lazily created index buffer for '{}' ({} bytes)", name, required);
    }
 
    upload_resizing(
        indices.data(),
        required,
        binding.gpu_index_buffer,
        binding.index_staging_buffer);
 
    binding.gpu_vertex_buffer->set_index_resources(
        binding.gpu_index_buffer->get_buffer(),
        binding.gpu_index_buffer->get_buffer_resources().memory,
        binding.gpu_index_buffer->get_size_bytes());
 
    MF_RT_TRACE(Journal::Component::Buffers, Journal::Context::BufferProcessing,
        "Uploaded {} indices ({} bytes) for '{}'",
        binding.node->get_index_count(), required, name);
}

References MayaFlux::Journal::BufferProcessing, MayaFlux::Journal::Buffers, MayaFlux::Buffers::create_staging_buffer(), MayaFlux::Buffers::VKBufferProcessor::ensure_initialized(), MayaFlux::Buffers::GeometryBindingsProcessor::GeometryBinding::gpu_index_buffer, MayaFlux::Buffers::GeometryBindingsProcessor::GeometryBinding::gpu_vertex_buffer, MayaFlux::Buffers::VKBuffer::INDEX, MayaFlux::Buffers::GeometryBindingsProcessor::GeometryBinding::index_staging_buffer, MF_DEBUG, MF_RT_TRACE, MayaFlux::Buffers::GeometryBindingsProcessor::GeometryBinding::node, MayaFlux::Kakshya::UNKNOWN, and MayaFlux::Buffers::upload_resizing().

Referenced by processing_function().

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