Refactor

apps/LoopThroughWithOpenGLCompositing/runtime/RuntimeHost.h

@@ -0,0 +1,158 @@
+#pragma once
+
+#include "RuntimeJson.h"
+#include "ShaderTypes.h"
+
+#include <chrono>
+#include <filesystem>
+#include <map>
+#include <mutex>
+#include <string>
+#include <vector>
+
+class RuntimeHost
+{
+public:
+	RuntimeHost();
+
+	bool Initialize(std::string& error);
+
+	bool PollFileChanges(bool& registryChanged, bool& reloadRequested, std::string& error);
+	bool ManualReloadRequested();
+	void ClearReloadRequest();
+
+	bool AddLayer(const std::string& shaderId, std::string& error);
+	bool RemoveLayer(const std::string& layerId, std::string& error);
+	bool MoveLayer(const std::string& layerId, int direction, std::string& error);
+	bool MoveLayerToIndex(const std::string& layerId, std::size_t targetIndex, std::string& error);
+	bool SetLayerBypass(const std::string& layerId, bool bypassed, std::string& error);
+	bool SetLayerShader(const std::string& layerId, const std::string& shaderId, std::string& error);
+	bool UpdateLayerParameter(const std::string& layerId, const std::string& parameterId, const JsonValue& newValue, std::string& error);
+	bool UpdateLayerParameterByControlKey(const std::string& layerKey, const std::string& parameterKey, const JsonValue& newValue, std::string& error);
+	bool ResetLayerParameters(const std::string& layerId, std::string& error);
+	bool SaveStackPreset(const std::string& presetName, std::string& error) const;
+	bool LoadStackPreset(const std::string& presetName, std::string& error);
+
+	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();
+
+	bool BuildLayerFragmentShaderSource(const std::string& layerId, std::string& fragmentShaderSource, std::string& error);
+	std::vector<RuntimeRenderState> GetLayerRenderStates(unsigned outputWidth, unsigned outputHeight) const;
+	std::string BuildStateJson() const;
+
+	const std::filesystem::path& GetRepoRoot() const { return mRepoRoot; }
+	const std::filesystem::path& GetUiRoot() const { return mUiRoot; }
+	const std::filesystem::path& GetDocsRoot() const { return mDocsRoot; }
+	const std::filesystem::path& GetRuntimeRoot() const { return mRuntimeRoot; }
+	unsigned short GetServerPort() const { return mServerPort; }
+	unsigned short GetOscPort() const { return mConfig.oscPort; }
+	unsigned GetMaxTemporalHistoryFrames() const { return mConfig.maxTemporalHistoryFrames; }
+	bool ExternalKeyingEnabled() const { return mConfig.enableExternalKeying; }
+	const std::string& GetInputVideoFormat() const { return mConfig.inputVideoFormat; }
+	const std::string& GetInputFrameRate() const { return mConfig.inputFrameRate; }
+	const std::string& GetOutputVideoFormat() const { return mConfig.outputVideoFormat; }
+	const std::string& GetOutputFrameRate() const { return mConfig.outputFrameRate; }
+	void SetServerPort(unsigned short port);
+	bool AutoReloadEnabled() const { return mAutoReloadEnabled; }
+
+private:
+	struct AppConfig
+	{
+		std::string shaderLibrary = "shaders";
+		unsigned short serverPort = 8080;
+		unsigned short oscPort = 9000;
+		bool autoReload = true;
+		unsigned maxTemporalHistoryFrames = 4;
+		bool enableExternalKeying = false;
+		std::string inputVideoFormat = "1080p";
+		std::string inputFrameRate = "59.94";
+		std::string outputVideoFormat = "1080p";
+		std::string outputFrameRate = "59.94";
+	};
+
+	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
+	{
+		std::string id;
+		std::string shaderId;
+		bool bypass = false;
+		std::map<std::string, ShaderParameterValue> parameterValues;
+	};
+
+	struct PersistentState
+	{
+		std::vector<LayerPersistentState> layers;
+	};
+
+	bool LoadConfig(std::string& error);
+	bool LoadPersistentState(std::string& error);
+	bool SavePersistentState(std::string& error) const;
+	bool ScanShaderPackages(std::string& error);
+	bool ParseShaderManifest(const std::filesystem::path& manifestPath, ShaderPackage& shaderPackage, std::string& error) const;
+	bool NormalizeAndValidateValue(const ShaderParameterDefinition& definition, const JsonValue& value, ShaderParameterValue& normalizedValue, std::string& error) const;
+	ShaderParameterValue DefaultValueForDefinition(const ShaderParameterDefinition& definition) const;
+	void EnsureLayerDefaultsLocked(LayerPersistentState& layerState, const ShaderPackage& shaderPackage) const;
+	std::string ReadTextFile(const std::filesystem::path& path, std::string& error) const;
+	bool WriteTextFile(const std::filesystem::path& path, const std::string& contents, std::string& error) const;
+	bool ResolvePaths(std::string& error);
+	JsonValue BuildStateValue() const;
+	JsonValue SerializeLayerStackLocked() const;
+	bool DeserializeLayerStackLocked(const JsonValue& layersValue, std::vector<LayerPersistentState>& layers, std::string& error);
+	void NormalizePersistentLayerIdsLocked();
+	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();
+
+private:
+	mutable std::mutex mMutex;
+	AppConfig mConfig;
+	PersistentState mPersistentState;
+	std::filesystem::path mRepoRoot;
+	std::filesystem::path mUiRoot;
+	std::filesystem::path mDocsRoot;
+	std::filesystem::path mShaderRoot;
+	std::filesystem::path mRuntimeRoot;
+	std::filesystem::path mPresetRoot;
+	std::filesystem::path mRuntimeStatePath;
+	std::filesystem::path mConfigPath;
+	std::filesystem::path mWrapperPath;
+	std::filesystem::path mGeneratedGlslPath;
+	std::filesystem::path mPatchedGlslPath;
+	std::map<std::string, ShaderPackage> mPackagesById;
+	std::vector<std::string> mPackageOrder;
+	bool mReloadRequested;
+	bool mCompileSucceeded;
+	std::string mCompileMessage;
+	bool mHasSignal;
+	unsigned mSignalWidth;
+	unsigned mSignalHeight;
+	std::string mSignalModeName;
+	double mFrameBudgetMilliseconds;
+	double mRenderMilliseconds;
+	double mSmoothedRenderMilliseconds;
+	DeckLinkOutputStatus mDeckLinkOutputStatus;
+	unsigned short mServerPort;
+	bool mAutoReloadEnabled;
+	std::chrono::steady_clock::time_point mStartTime;
+	std::chrono::steady_clock::time_point mLastScanTime;
+	uint64_t mFrameCounter;
+	uint64_t mNextLayerId;
+};