temporal effects

apps/LoopThroughWithOpenGLCompositing/RuntimeHost.h

@@ -45,6 +45,21 @@ struct ShaderParameterValue
 	std::string enumValue;
 };
 
+enum class TemporalHistorySource
+{
+	None,
+	Source,
+	PreLayerInput
+};
+
+struct TemporalSettings
+{
+	bool enabled = false;
+	TemporalHistorySource historySource = TemporalHistorySource::None;
+	unsigned requestedHistoryLength = 0;
+	unsigned effectiveHistoryLength = 0;
+};
+
 struct ShaderPackage
 {
 	std::string id;
@@ -56,6 +71,7 @@ struct ShaderPackage
 	std::filesystem::path shaderPath;
 	std::filesystem::path manifestPath;
 	std::vector<ShaderParameterDefinition> parameters;
+	TemporalSettings temporal;
 	std::filesystem::file_time_type shaderWriteTime;
 	std::filesystem::file_time_type manifestWriteTime;
 };
@@ -74,6 +90,10 @@ struct RuntimeRenderState
 	unsigned inputHeight = 0;
 	unsigned outputWidth = 0;
 	unsigned outputHeight = 0;
+	bool isTemporal = false;
+	TemporalHistorySource temporalHistorySource = TemporalHistorySource::None;
+	unsigned requestedTemporalHistoryLength = 0;
+	unsigned effectiveTemporalHistoryLength = 0;
 };
 
 class RuntimeHost
@@ -100,6 +120,8 @@ public:
 
 	void SetCompileStatus(bool succeeded, const std::string& message);
 	void SetSignalStatus(bool hasSignal, unsigned width, unsigned height, const std::string& modeName);
+	void SetDeckLinkOutputStatus(const std::string& modelName, bool supportsInternalKeying, bool supportsExternalKeying,
+		bool keyerInterfaceAvailable, bool externalKeyingRequested, bool externalKeyingActive, const std::string& statusMessage);
 	void SetPerformanceStats(double frameBudgetMilliseconds, double renderMilliseconds);
 	void AdvanceFrame();
 
@@ -111,6 +133,8 @@ public:
 	const std::filesystem::path& GetUiRoot() const { return mUiRoot; }
 	const std::filesystem::path& GetRuntimeRoot() const { return mRuntimeRoot; }
 	unsigned short GetServerPort() const { return mServerPort; }
+	unsigned GetMaxTemporalHistoryFrames() const { return mConfig.maxTemporalHistoryFrames; }
+	bool ExternalKeyingEnabled() const { return mConfig.enableExternalKeying; }
 	void SetServerPort(unsigned short port);
 	bool AutoReloadEnabled() const { return mAutoReloadEnabled; }
 
@@ -120,6 +144,19 @@ private:
 		std::string shaderLibrary = "shaders";
 		unsigned short serverPort = 8080;
 		bool autoReload = true;
+		unsigned maxTemporalHistoryFrames = 4;
+		bool enableExternalKeying = false;
+	};
+
+	struct DeckLinkOutputStatus
+	{
+		std::string modelName;
+		bool supportsInternalKeying = false;
+		bool supportsExternalKeying = false;
+		bool keyerInterfaceAvailable = false;
+		bool externalKeyingRequested = false;
+		bool externalKeyingActive = false;
+		std::string statusMessage;
 	};
 
 	struct LayerPersistentState
@@ -156,6 +193,7 @@ private:
 	std::vector<std::string> GetStackPresetNamesLocked() const;
 	std::string MakeSafePresetFileStem(const std::string& presetName) const;
 	JsonValue SerializeParameterValue(const ShaderParameterDefinition& definition, const ShaderParameterValue& value) const;
+	std::string TemporalHistorySourceToString(TemporalHistorySource source) const;
 	LayerPersistentState* FindLayerById(const std::string& layerId);
 	const LayerPersistentState* FindLayerById(const std::string& layerId) const;
 	std::string GenerateLayerId();
@@ -186,6 +224,7 @@ private:
 	double mFrameBudgetMilliseconds;
 	double mRenderMilliseconds;
 	double mSmoothedRenderMilliseconds;
+	DeckLinkOutputStatus mDeckLinkOutputStatus;
 	unsigned short mServerPort;
 	bool mAutoReloadEnabled;
 	std::chrono::steady_clock::time_point mStartTime;