download_bound() [2/2]

bool MayaFlux::Buffers::ShaderProcessor::download_bound	(	const std::string &	descriptor_name,
		void *	data,
		size_t	size,
		const std::shared_ptr< VKBuffer > &	staging = nullptr
	)		const

Download the buffer currently bound to a named descriptor.

Parameters

descriptor_name	Logical name previously bound via bind_buffer.
data	Destination pointer, at least the bound buffer's size in bytes.
size	Byte count to copy.
staging	Optional staging buffer, forwarded to download_from_gpu.

Returns

True if the name resolved to a bound buffer and the download ran.

Definition at line 191 of file ShaderProcessor.cpp.

{
    auto buffer = get_bound_buffer(descriptor_name);
    if (!buffer) {
        MF_ERROR(Journal::Component::Buffers, Journal::Context::BufferProcessing,
            "download_bound: no buffer bound to descriptor '{}'", descriptor_name);
        return false;
    }
 
    download_from_gpu(buffer, data, size, staging);
    return true;
}

References MayaFlux::Journal::BufferProcessing, MayaFlux::Journal::Buffers, MayaFlux::Buffers::download_from_gpu(), get_bound_buffer(), and MF_ERROR.

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