Attempt to fix strange GL behaviour on iOS8

drape/hw_texture.cpp

@@ -3,6 +3,8 @@
 #include "glfunctions.hpp"
 #include "glextensions_list.hpp"
 
+#include "platform/platform.hpp"
+
 #include "base/math.hpp"
 
 #if defined(OMIM_OS_IPHONE)
@@ -173,6 +175,9 @@ drape_ptr<HWTexture> OpenGLHWTextureAllocator::CreateTexture()
 
 drape_ptr<HWTextureAllocator> CreateAllocator()
 {
+  if (!Platform::IsCustomTextureAllocatorSupported())
+    return make_unique_dp<OpenGLHWTextureAllocator>();;
+
 #if defined(OMIM_OS_IPHONE) && !defined(OMIM_OS_IPHONE_SIMULATOR)
   return make_unique_dp<HWTextureAllocatorApple>();
 #else

platform/platform.hpp

@@ -93,6 +93,8 @@ public:
 
   static bool IsFileExistsByFullPath(string const & filePath);
 
+  /// @return true if we can create custom texture allocator in drape
+  static bool IsCustomTextureAllocatorSupported();
   /// @return always the same writable dir for current user with slash at the end
   string WritableDir() const { return m_writableDir; }
   /// Set writable dir — use for testing and linux stuff only

platform/platform_ios.mm

@@ -63,6 +63,9 @@ Platform::Platform()
         device.systemVersion);
 }
 
+// static
+bool Platform::IsCustomTextureAllocatorSupported() { return !isIOS8; }
+
 Platform::EError Platform::MkDir(string const & dirName) const
 {
   if (::mkdir(dirName.c_str(), 0755))

platform/platform_unix_impl.cpp

@@ -145,12 +145,16 @@ Platform::EError Platform::GetFileType(string const & path, EFileType & type)
   return ERR_OK;
 }
 
+// static
 bool Platform::IsFileExistsByFullPath(string const & filePath)
 {
   struct stat s;
   return stat(filePath.c_str(), &s) == 0;
 }
 
+// static
+bool Platform::IsCustomTextureAllocatorSupported() { return true; }
+
 bool Platform::IsDirectoryEmpty(string const & directory)
 {
   unique_ptr<DIR, CloseDir> dir(opendir(directory.c_str()));