Started refactor to lazily compilable shaders.

include/opengl/data_uploaders/shader_program_compiler.hpp

@@ -0,0 +1,42 @@
+#pragma once
+
+#include <unordered_map>
+#include "assets/dynamic_data_stores/dynamic_shader_source_store.hpp"
+#include "opengl/shader_program_lookup.hpp"
+#include "opengl/handles/shader_program_handle.hpp"
+
+template<typename Capabilities>
+class shader_program_compiler
+{
+
+	public:
+
+
+	// compile shader programs for given requirements
+	// cache shader programs with their capabilities
+	// store sstream for creating defines
+
+	// register shader source code
+	// store define types for these shaders as bitmap
+	void register_shader_sources(
+		const dynamic_shader_source_store& shader_sources
+	);
+
+	void find_or_compile_shader_programs(
+		std::span<const Capabilities> required_capabilities,
+		zgl::shader_program_lookup& shader_program_lookup
+	);
+
+
+	// create metadata for all sources
+
+	// get
+
+protected:
+
+
+
+private:
+	std::unordered_map<dynamic_shader_source_store::id_type, Capabilities> shader_capabilities;
+
+};