read_vertices()

void MayaFlux::Buffers::DataReadProcessor::read_vertices

(

)

Read the attached buffer's declared vertices; the layout count may represent capacity.

Definition at line 124 of file DataReadProcessor.cpp.

{
    arm([](DataReadProcessor& self, const std::shared_ptr<VKBuffer>& vk, PendingRead& pending) {
        if (std::dynamic_pointer_cast<TextureBuffer>(vk)) {
            MF_RT_ERROR(Journal::Component::Buffers, Journal::Context::BufferProcessing,
                "DataReadProcessor read_vertices does not read TextureBuffer's display quad");
            return false;
        }
        if (vk->has_index_buffer()) {
            MF_RT_ERROR(Journal::Component::Buffers, Journal::Context::BufferProcessing,
                "DataReadProcessor read_vertices cannot read an indexed buffer; use read_mesh");
            return false;
        }
        pending.layout = resolve_vertex_layout(vk);
        if (!pending.layout) {
            MF_RT_ERROR(Journal::Component::Buffers, Journal::Context::BufferProcessing,
                "DataReadProcessor requires a valid vertex layout within the primary allocation");
            return false;
        }
        pending.handle = gpu_buffer_handle(vk);
        return submit_read(pending, self.m_staging, vk->get_size_bytes(),
            static_cast<size_t>(pending.layout->vertex_count) * pending.layout->stride_bytes,
            vk->is_host_visible(), is_transfer_source(vk));
    });
}

References arm(), MayaFlux::Journal::BufferProcessing, MayaFlux::Journal::Buffers, MayaFlux::Buffers::gpu_buffer_handle(), MayaFlux::Buffers::DataReadProcessor::PendingRead::handle, MayaFlux::Buffers::is_transfer_source(), MayaFlux::Buffers::DataReadProcessor::PendingRead::layout, m_staging, MF_RT_ERROR, MayaFlux::Buffers::resolve_vertex_layout(), and submit_read().

Referenced by MayaFlux::Kriya::detail::arm_graphics_read().

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