Font builder

src/runtime/FontAtlasBuilder.h

@@ -0,0 +1,52 @@
+#pragma once
+
+#include "ShaderTypes.h"
+
+#include <filesystem>
+#include <string>
+#include <vector>
+
+namespace RenderCadenceCompositor
+{
+struct FontAtlasBuildConfig
+{
+	std::filesystem::path repoRoot;
+	std::filesystem::path cacheRoot;
+	double sizePixelsPerEm = 64.0;
+	double pixelRange = 4.0;
+	std::string atlasType = "mtsdf";
+};
+
+struct FontAtlasBuildOutput
+{
+	std::string fontId;
+	std::filesystem::path imagePath;
+	std::filesystem::path jsonPath;
+};
+
+class FontAtlasBuilder
+{
+public:
+	explicit FontAtlasBuilder(FontAtlasBuildConfig config);
+
+	bool BuildPackageFontAtlases(
+		const ShaderPackage& shaderPackage,
+		std::vector<FontAtlasBuildOutput>& outputs,
+		std::string& error) const;
+
+	bool BuildFontAtlas(
+		const ShaderPackage& shaderPackage,
+		const ShaderFontAsset& fontAsset,
+		FontAtlasBuildOutput& output,
+		std::string& error) const;
+
+	static bool FindMsdfAtlasGenExecutable(const std::filesystem::path& repoRoot, std::filesystem::path& executablePath);
+
+private:
+	std::filesystem::path PackageCacheDirectory(const ShaderPackage& shaderPackage) const;
+	static std::string SanitizePathToken(const std::string& value);
+	static bool RunProcess(const std::string& commandLine, const std::filesystem::path& workingDirectory, std::string& error);
+
+	FontAtlasBuildConfig mConfig;
+};
+}