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apps/LoopThroughWithOpenGLCompositing/runtime/RuntimeCoordinator.h

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+#pragma once
+
+#include "RuntimeJson.h"
+
+#include <cstddef>
+#include <string>
+
+class RuntimeStore;
+
+enum class RuntimeCoordinatorCommittedStateMode
+{
+	Unchanged,
+	UseCommittedStates,
+	UseLiveSnapshots
+};
+
+enum class RuntimeCoordinatorRenderResetScope
+{
+	None,
+	TemporalHistoryOnly,
+	TemporalHistoryAndFeedback
+};
+
+struct RuntimeCoordinatorResult
+{
+	bool accepted = false;
+	bool runtimeStateBroadcastRequired = false;
+	bool shaderBuildRequested = false;
+	bool clearTransientOscState = false;
+	bool compileStatusChanged = false;
+	bool compileStatusSucceeded = false;
+	bool clearReloadRequest = false;
+	RuntimeCoordinatorCommittedStateMode committedStateMode = RuntimeCoordinatorCommittedStateMode::Unchanged;
+	RuntimeCoordinatorRenderResetScope renderResetScope = RuntimeCoordinatorRenderResetScope::None;
+	std::string compileStatusMessage;
+	std::string errorMessage;
+};
+
+class RuntimeCoordinator
+{
+public:
+	explicit RuntimeCoordinator(RuntimeStore& runtimeStore);
+
+	RuntimeCoordinatorResult AddLayer(const std::string& shaderId);
+	RuntimeCoordinatorResult RemoveLayer(const std::string& layerId);
+	RuntimeCoordinatorResult MoveLayer(const std::string& layerId, int direction);
+	RuntimeCoordinatorResult MoveLayerToIndex(const std::string& layerId, std::size_t targetIndex);
+	RuntimeCoordinatorResult SetLayerBypass(const std::string& layerId, bool bypassed);
+	RuntimeCoordinatorResult SetLayerShader(const std::string& layerId, const std::string& shaderId);
+	RuntimeCoordinatorResult UpdateLayerParameter(const std::string& layerId, const std::string& parameterId, const JsonValue& newValue);
+	RuntimeCoordinatorResult UpdateLayerParameterByControlKey(const std::string& layerKey, const std::string& parameterKey, const JsonValue& newValue);
+	RuntimeCoordinatorResult ResetLayerParameters(const std::string& layerId);
+	RuntimeCoordinatorResult SaveStackPreset(const std::string& presetName);
+	RuntimeCoordinatorResult LoadStackPreset(const std::string& presetName);
+
+	RuntimeCoordinatorResult RequestShaderReload(bool preserveFeedbackState = false);
+	RuntimeCoordinatorResult HandleRuntimePollFailure(const std::string& error);
+	RuntimeCoordinatorResult HandlePreparedShaderBuildFailure(const std::string& error);
+	RuntimeCoordinatorResult HandlePreparedShaderBuildSuccess();
+	RuntimeCoordinatorResult HandleRuntimeReloadRequest();
+	bool PreserveFeedbackOnNextShaderBuild() const;
+
+private:
+	RuntimeCoordinatorResult ApplyStoreMutation(bool succeeded, const std::string& errorMessage, bool reloadRequired, bool preserveFeedbackState);
+	RuntimeCoordinatorResult BuildQueuedReloadResult(bool preserveFeedbackState);
+	RuntimeCoordinatorResult BuildAcceptedNoReloadResult() const;
+
+	RuntimeStore& mRuntimeStore;
+	bool mPreserveFeedbackOnNextShaderBuild = false;
+};