read_back_buffer()

void MayaFlux::Buffers::DataReadProcessor::read_back_buffer	(	size_t	index,
		size_t	byte_count
	)

Read a raw back_buffers slot of the attached buffer.

Parameters

index	Slot index into its back_buffers.
byte_count	Bytes to read. A slot does not carry its size, so this must not exceed what the buffer's owner allocated for it.

Definition at line 110 of file DataReadProcessor.cpp.

{
    arm([index, byte_count](DataReadProcessor& self, const std::shared_ptr<VKBuffer>& vk, PendingRead& pending) {
        const auto& slots = vk->get_buffer_resources().back_buffers;
        if (index >= slots.size() || byte_count == 0) {
            MF_RT_ERROR(Journal::Component::Buffers, Journal::Context::BufferProcessing,
                "DataReadProcessor read_back_buffer needs an existing slot and a nonzero byte count");
            return false;
        }
        pending.handle = gpu_buffer_handle(slots[index], byte_count);
        return submit_read(pending, self.m_staging, byte_count, byte_count, true, true);
    });
}

References arm(), MayaFlux::Buffers::gpu_buffer_handle(), MayaFlux::Buffers::DataReadProcessor::PendingRead::handle, index, m_staging, and submit_read().

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