shader control

tests/RenderCadenceCompositorRuntimeLayerModelTests.cpp

@@ -143,6 +143,49 @@ void TestAddAndRemoveLayers()
 
 	std::filesystem::remove_all(root);
 }
+
+void TestLayerControlsUpdateDisplayAndRenderModels()
+{
+	std::filesystem::path root;
+	RenderCadenceCompositor::SupportedShaderCatalog catalog = MakeCatalog(root);
+
+	RenderCadenceCompositor::RuntimeLayerModel model;
+	std::string error;
+	std::string firstLayerId;
+	std::string secondLayerId;
+	Expect(model.AddLayer(catalog, "solid", firstLayerId, error), "first control layer can be added");
+	Expect(model.AddLayer(catalog, "solid", secondLayerId, error), "second control layer can be added");
+
+	Expect(model.SetLayerBypass(firstLayerId, true, error), "bypass can be set");
+	Expect(model.ReorderLayer(firstLayerId, 1, error), "layer can be reordered");
+	RenderCadenceCompositor::RuntimeLayerModelSnapshot snapshot = model.Snapshot();
+	Expect(snapshot.displayLayers[1].id == firstLayerId, "reordered layer moves to requested index");
+	Expect(snapshot.displayLayers[1].bypass, "bypass state is visible in read model");
+
+	JsonValue gainValue(0.75);
+	Expect(model.UpdateParameter(firstLayerId, "gain", gainValue, error), "parameter value can be updated");
+	snapshot = model.Snapshot();
+	Expect(snapshot.displayLayers[1].parameterValues.at("gain").numberValues.front() == 0.75, "updated parameter value is visible");
+
+	RuntimeShaderArtifact artifact;
+	artifact.layerId = firstLayerId;
+	artifact.shaderId = "solid";
+	artifact.displayName = "Solid";
+	artifact.fragmentShaderSource = "void main(){}";
+	artifact.parameterDefinitions = snapshot.displayLayers[1].parameterDefinitions;
+	artifact.message = "build ready";
+	Expect(model.MarkBuildReady(artifact, error), "ready artifact keeps layer parameter state");
+	snapshot = model.Snapshot();
+	Expect(snapshot.renderLayers.size() == 1, "ready layer produces render model");
+	Expect(snapshot.renderLayers[0].bypass, "render model carries bypass state");
+	Expect(snapshot.renderLayers[0].artifact.parameterValues.at("gain").numberValues.front() == 0.75, "render artifact carries updated parameter value");
+
+	Expect(model.ResetParameters(firstLayerId, error), "parameters can reset to defaults");
+	snapshot = model.Snapshot();
+	Expect(snapshot.displayLayers[1].parameterValues.at("gain").numberValues.front() == 0.5, "reset restores default value");
+
+	std::filesystem::remove_all(root);
+}
 }
 
 int main()
@@ -151,6 +194,7 @@ int main()
 	TestRejectsUnsupportedStartupShader();
 	TestBuildFailureStaysDisplaySide();
 	TestAddAndRemoveLayers();
+	TestLayerControlsUpdateDisplayAndRenderModels();
 
 	if (gFailures != 0)
 	{