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apps/RenderCadenceCompositor/runtime/RuntimeLayerModel.h

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+#pragma once
+
+#include "RuntimeShaderArtifact.h"
+#include "SupportedShaderCatalog.h"
+
+#include <cstdint>
+#include <string>
+#include <vector>
+
+namespace RenderCadenceCompositor
+{
+enum class RuntimeLayerBuildState
+{
+	Pending,
+	Ready,
+	Failed
+};
+
+struct RuntimeLayerReadModel
+{
+	std::string id;
+	std::string shaderId;
+	std::string shaderName;
+	bool bypass = false;
+	RuntimeLayerBuildState buildState = RuntimeLayerBuildState::Pending;
+	std::string message;
+	bool renderReady = false;
+};
+
+struct RuntimeRenderLayerModel
+{
+	std::string id;
+	std::string shaderId;
+	RuntimeShaderArtifact artifact;
+};
+
+struct RuntimeLayerModelSnapshot
+{
+	bool compileSucceeded = true;
+	std::string compileMessage;
+	std::vector<RuntimeLayerReadModel> displayLayers;
+	std::vector<RuntimeRenderLayerModel> renderLayers;
+};
+
+class RuntimeLayerModel
+{
+public:
+	bool InitializeSingleLayer(const SupportedShaderCatalog& shaderCatalog, const std::string& shaderId, std::string& error);
+	void Clear();
+
+	bool AddLayer(const SupportedShaderCatalog& shaderCatalog, const std::string& shaderId, std::string& layerId, std::string& error);
+	bool RemoveLayer(const std::string& layerId, std::string& error);
+	bool MarkBuildStarted(const std::string& layerId, const std::string& message, std::string& error);
+	bool MarkBuildReady(const RuntimeShaderArtifact& artifact, std::string& error);
+	bool MarkBuildFailedForShader(const std::string& shaderId, const std::string& message);
+	bool MarkBuildFailed(const std::string& layerId, const std::string& message, std::string& error);
+	bool MarkRenderCommitFailed(const std::string& layerId, const std::string& message, std::string& error);
+
+	RuntimeLayerModelSnapshot Snapshot() const;
+	std::string FirstLayerId() const;
+
+private:
+	struct Layer
+	{
+		std::string id;
+		std::string shaderId;
+		std::string shaderName;
+		bool bypass = false;
+		RuntimeLayerBuildState buildState = RuntimeLayerBuildState::Pending;
+		std::string message;
+		bool renderReady = false;
+		RuntimeShaderArtifact artifact;
+	};
+
+	Layer* FindLayer(const std::string& layerId);
+	const Layer* FindLayer(const std::string& layerId) const;
+	Layer* FindFirstLayerForShader(const std::string& shaderId);
+	std::string AllocateLayerId();
+	static RuntimeLayerReadModel ToReadModel(const Layer& layer);
+
+	std::vector<Layer> mLayers;
+	uint64_t mNextLayerNumber = 1;
+};
+}