calculate_buffer_size()

size_t MayaFlux::Buffers::NodeTextureBuffer::calculate_buffer_size ( const std::shared_ptr< Nodes::GpuSync::TextureNode > &  node )

staticprivate

Calculate staging buffer size from node dimensions.

Note

Assumes RGBA32F format (4 channels * sizeof(float))

Definition at line 146 of file NodeTextureBuffer.cpp.

{
    if (!node) {
        return 0;
    }
 
    size_t size = static_cast<size_t>(node->get_width())
        * static_cast<size_t>(node->get_height())
        * 4
        * sizeof(float);
 
    if (size == 0) {
        MF_WARN(Journal::Component::Buffers, Journal::Context::BufferManagement,
            "TextureNode has zero dimensions. Using minimum buffer size.");
        return 4096;
    }
 
    return size;
}

References MayaFlux::Journal::BufferManagement, MayaFlux::Journal::Buffers, MF_WARN, and size.