text: /*!
  	@file
  	@author		Albert Semenov
  	@date		09/2009
  */
  /*
  	This file is part of MyGUI.
  
  	MyGUI is free software: you can redistribute it and/or modify
  	it under the terms of the GNU Lesser General Public License as published by
  	the Free Software Foundation, either version 3 of the License, or
  	(at your option) any later version.
  
  	MyGUI is distributed in the hope that it will be useful,
  	but WITHOUT ANY WARRANTY; without even the implied warranty of
  	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  	GNU Lesser General Public License for more details.
  
  	You should have received a copy of the GNU Lesser General Public License
  	along with MyGUI.  If not, see <http://www.gnu.org/licenses/>.
  */
  #include "MyGUI_Precompiled.h"
  #include "MyGUI_TextureUtility.h"
  #include "MyGUI_RenderManager.h"
  #include "MyGUI_DataManager.h"
  #include "MyGUI_Bitwise.h"
  
  namespace MyGUI
  {
  
  	namespace texture_utility
  	{
  
  		const IntSize& getTextureSize(const std::string& _texture, bool _cache)
  		{
  			// предыдущя текстура
  			static std::string old_texture;
  			static IntSize old_size;
  
  			if (old_texture == _texture && _cache)
  				return old_size;
  			old_texture = _texture;
  			old_size.clear();
  
  			if (_texture.empty())
  				return old_size;
  
  			RenderManager& render = RenderManager::getInstance();
  
  			if (nullptr == render.getTexture(_texture))
  			{
  				if (!DataManager::getInstance().isDataExist(_texture))
  				{
  					MYGUI_LOG(Error, "Texture '" + _texture + "' not found");
  					return old_size;
  				}
  				else
  				{
  					ITexture* texture = render.createTexture(_texture);
  					texture->loadFromFile(_texture);
  				}
  			}
  
  			ITexture* texture = render.getTexture(_texture);
  			if (texture == nullptr)
  			{
  				MYGUI_LOG(Error, "Texture '" + _texture + "' not found");
  				return old_size;
  			}
  
  			old_size.set(texture->getWidth(), texture->getHeight());
  
  	#if MYGUI_DEBUG_MODE == 1
  			if (!Bitwise::isPO2(old_size.width) || !Bitwise::isPO2(old_size.height))
  			{
  				MYGUI_LOG(Warning, "Texture '" + _texture + "' have non power of two size");
  			}
  	#endif
  
  			return old_size;
  		}
  
  		uint32 toColourARGB(const Colour& _colour)
  		{
  			uint32 val32 = uint8(_colour.alpha * 255);
  			val32 <<= 8;
  			val32 += uint8(_colour.red * 255);
  			val32 <<= 8;
  			val32 += uint8(_colour.green * 255);
  			val32 <<= 8;
  			val32 += uint8(_colour.blue * 255);
  			return val32;
  		}
  
  	} // namespace texture_utility
  
  } // namespace MyGUI
  