New cpp folder structure

Signed-off-by: Alexander Borsuk <me@alex.bio>

libs/shaders/program_manager.hpp

@@ -0,0 +1,50 @@
+#pragma once
+
+#include "shaders/program_pool.hpp"
+#include "shaders/program_params.hpp"
+
+#include "drape/drape_global.hpp"
+#include "drape/graphics_context.hpp"
+#include "drape/gpu_program.hpp"
+#include "drape/pointers.hpp"
+
+#include "base/macros.hpp"
+#include "base/thread_checker.hpp"
+
+#include <array>
+#include <string>
+
+namespace gpu
+{
+class ProgramManager
+{
+public:
+  ProgramManager() = default;
+
+  void Init(ref_ptr<dp::GraphicsContext> context);
+  void Destroy(ref_ptr<dp::GraphicsContext> context);
+
+  ref_ptr<dp::GpuProgram> GetProgram(Program program);
+  ref_ptr<ProgramParamsSetter> GetParamsSetter() const;
+
+private:
+  void InitForOpenGL(ref_ptr<dp::GraphicsContext> context);
+  void InitForVulkan(ref_ptr<dp::GraphicsContext> context);
+  void DestroyForVulkan(ref_ptr<dp::GraphicsContext> context);
+
+#if defined(OMIM_METAL_AVAILABLE)
+  // Definition of this method is in a .mm-file.
+  void InitForMetal(ref_ptr<dp::GraphicsContext> context);
+  void DestroyForMetal(ref_ptr<dp::GraphicsContext> context);
+#endif
+
+  using Programs = std::array<drape_ptr<dp::GpuProgram>,
+                              static_cast<size_t>(Program::ProgramsCount)>;
+  drape_ptr<ProgramPool> m_pool;
+  Programs m_programs;
+  drape_ptr<ProgramParamsSetter> m_paramsSetter;
+
+  DECLARE_THREAD_CHECKER(m_threadChecker);
+  DISALLOW_COPY_AND_MOVE(ProgramManager);
+};
+}  // namespace gpu