New cpp folder structure

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

libs/drape/hw_texture_ios.hpp

@@ -0,0 +1,66 @@
+#pragma once
+
+#include "drape/gl_constants.hpp"
+#include "drape/hw_texture.hpp"
+
+#include "std/target_os.hpp"
+
+#ifndef OMIM_OS_IPHONE
+  #error Only for iOS
+#endif
+
+#import <CoreVideo/CVPixelBuffer.h>
+#import <CoreVideo/CVOpenGLESTexture.h>
+#import <CoreVideo/CVOpenGLESTextureCache.h>
+
+namespace dp
+{
+class HWTextureAllocatorApple : public HWTextureAllocator
+{
+public:
+  HWTextureAllocatorApple();
+  ~HWTextureAllocatorApple();
+
+  CVPixelBufferRef CVCreatePixelBuffer(uint32_t width, uint32_t height, dp::TextureFormat format);
+  void CVDestroyPixelBuffer(CVPixelBufferRef buffer);
+
+  CVOpenGLESTextureRef CVCreateTexture(CVPixelBufferRef buffer, uint32_t width, uint32_t height,
+                                       glConst layout, glConst pixelType);
+  void CVDestroyTexture(CVOpenGLESTextureRef texture);
+
+  void RiseFlushFlag();
+
+  drape_ptr<HWTexture> CreateTexture(ref_ptr<dp::GraphicsContext> context) override;
+  void Flush() override;
+
+private:
+  bool m_needFlush;
+  CVOpenGLESTextureCacheRef m_textureCache;
+};
+
+class HWTextureApple : public HWTexture
+{
+  using TBase = HWTexture;
+
+public:
+  explicit HWTextureApple(ref_ptr<HWTextureAllocatorApple> allocator);
+  ~HWTextureApple();
+
+  void Create(ref_ptr<dp::GraphicsContext> context, Params const & params, ref_ptr<void> data) override;
+  void UploadData(ref_ptr<dp::GraphicsContext> context, uint32_t x, uint32_t y,
+                  uint32_t width, uint32_t height, ref_ptr<void> data) override;
+  void Bind(ref_ptr<dp::GraphicsContext> context) const override;
+  void SetFilter(TextureFilter filter) override;
+  bool Validate() const override;
+  
+private:
+  void Lock();
+  void Unlock();
+
+  CVPixelBufferRef m_directBuffer;
+  CVOpenGLESTextureRef m_texture;
+  ref_ptr<HWTextureAllocatorApple> m_allocator;
+
+  void * m_directPointer;
+};
+}  // namespace dp