GLSL 'include' support

src/coders/GLSLExtension.h

@@ -0,0 +1,33 @@
+#ifndef CODERS_GLSL_EXTESION_H_
+#define CODERS_GLSL_EXTESION_H_
+
+#include <string>
+#include <unordered_map>
+#include <filesystem>
+
+class GLSLExtension {
+    std::unordered_map<std::string, std::string> headers;
+    std::unordered_map<std::string, std::string> defines;
+    std::filesystem::path libFolder;
+    std::string version = "330 core";
+
+    void loadHeader(std::string name);
+    std::filesystem::path getHeaderPath(std::string name);
+public:
+    void setLibFolder(std::filesystem::path folder);
+    void setVersion(std::string version);
+
+    void define(std::string name, std::string value);
+    void undefine(std::string name);
+    void addHeader(std::string name, std::string source);
+
+    const std::string& getHeader(const std::string name) const;
+    const std::string getDefine(const std::string name) const;
+
+    bool hasHeader(const std::string name) const;
+    bool hasDefine(const std::string name) const;
+
+    const std::string process(const std::filesystem::path file, const std::string& source);
+};
+
+#endif // CODERS_GLSL_EXTESION_H_