Differential D12341 Diff 41201 source/blender/compositor/intern/COM_NodeOperation.cc

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source/blender/compositor/intern/COM_NodeOperation.cc

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	NodeOperation::NodeOperation()			NodeOperation::NodeOperation()
	{			{
	this->m_resolutionInputSocketIndex = 0;			this->m_resolutionInputSocketIndex = 0;
	this->m_width = 0;			this->m_width = 0;
	this->m_height = 0;			this->m_height = 0;
	this->m_btree = nullptr;			this->m_btree = nullptr;
	}			}

				/**
				* Generate a hash that identifies the operation result in the current execution.
				* Requires `hash_output_params` to be implemented, otherwise `std::nullopt` is returned.
				* If the operation parameters or its linked inputs change, the hash must be re-generated.
				*/
				std::optional<NodeOperationHash> NodeOperation::generate_hash()
				{
				params_hash_ = get_default_hash_2(m_width, m_height);

				/* Hash subclasses params. */
				is_hash_output_params_implemented_ = true;
				hash_output_params();
				if (!is_hash_output_params_implemented_) {
				return std::nullopt;
				}

				hash_param(getOutputSocket()->getDataType());
				NodeOperationHash hash;
				hash.params_hash_ = params_hash_;

				hash.parents_hash_ = 0;
				for (NodeOperationInput &socket : m_inputs) {
				NodeOperation &input = socket.getLink()->getOperation();
				const bool is_constant = input.get_flags().is_constant_operation;
				combine_hashes(hash.parents_hash_, get_default_hash(is_constant));
				if (is_constant) {
				const float elem = ((ConstantOperation )&input)->get_constant_elem();
				const int num_channels = COM_data_type_num_channels(socket.getDataType());
				for (const int i : IndexRange(num_channels)) {
				combine_hashes(hash.parents_hash_, get_default_hash(elem[i]));
				}
				}
				else {
				combine_hashes(hash.parents_hash_, get_default_hash(input.get_id()));
				}
				}

				hash.type_hash_ = typeid(*this).hash_code();
				hash.operation_ = this;

				return hash;
				}

	NodeOperationOutput *NodeOperation::getOutputSocket(unsigned int index)			NodeOperationOutput *NodeOperation::getOutputSocket(unsigned int index)
	{			{
	return &m_outputs[index];			return &m_outputs[index];
	}			}

	NodeOperationInput *NodeOperation::getInputSocket(unsigned int index)			NodeOperationInput *NodeOperation::getInputSocket(unsigned int index)
	{			{
	return &m_inputs[index];			return &m_inputs[index];
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