1 files changed, 59 insertions, 0 deletions
diff --git a/source/blender/compositor/realtime_compositor/intern/input_single_value_operation.cc b/source/blender/compositor/realtime_compositor/intern/input_single_value_operation.cc
new file mode 100644
index 00000000000..b3cc86b5f79
--- /dev/null
+++ b/source/blender/compositor/realtime_compositor/intern/input_single_value_operation.cc
@@ -0,0 +1,59 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include "BLI_math_vec_types.hh"
+
+#include "COM_input_single_value_operation.hh"
+#include "COM_operation.hh"
+#include "COM_result.hh"
+#include "COM_utilities.hh"
+
+namespace blender::realtime_compositor {
+
+const StringRef InputSingleValueOperation::output_identifier_ = StringRef("Output");
+
+InputSingleValueOperation::InputSingleValueOperation(Context &context, DInputSocket input_socket)
+    : Operation(context), input_socket_(input_socket)
+{
+  const ResultType result_type = get_node_socket_result_type(input_socket_.bsocket());
+  Result result = Result(result_type, texture_pool());
+
+  /* The result of an input single value operation is guaranteed to have a single user. */
+  result.set_initial_reference_count(1);
+
+  populate_result(result);
+}
+
+void InputSingleValueOperation::execute()
+{
+  /* Allocate a single value for the result. */
+  Result &result = get_result();
+  result.allocate_single_value();
+
+  const bNodeSocket *bsocket = input_socket_.bsocket();
+
+  /* Set the value of the result to the default value of the input socket. */
+  switch (result.type()) {
+    case ResultType::Float:
+      result.set_float_value(bsocket->default_value_typed<bNodeSocketValueFloat>()->value);
+      break;
+    case ResultType::Vector:
+      result.set_vector_value(
+          float3(bsocket->default_value_typed<bNodeSocketValueVector>()->value));
+      break;
+    case ResultType::Color:
+      result.set_color_value(float4(bsocket->default_value_typed<bNodeSocketValueRGBA>()->value));
+      break;
+  }
+}
+
+Result &InputSingleValueOperation::get_result()
+{
+  return Operation::get_result(output_identifier_);
+}
+
+void InputSingleValueOperation::populate_result(Result result)
+{
+  Operation::populate_result(output_identifier_, result);
+}
+
+}  // namespace blender::realtime_compositor