source: GTP/trunk/Lib/Illum/IBRBillboardCloudTrees/OGRE/include/IMG/IMGTextureAtlas.h @ 751

#ifndef _IMGTEXTUREATLAS_H
#define _IMGTEXTUREATLAS_H

#include <IMGPrerequisites.h>
#include <IMGUtil.h>
#include <IMGTexture.h>

namespace IMG {

// Fordward declaration...
class TextureAtlas;

namespace boost
{
    void intrusive_ptr_add_ref(TextureAtlas * p);
    void intrusive_ptr_release(TextureAtlas * p);
};

class _IMGExport TextureAtlas : public Texture 
{

  private:
    long references;
    friend void boost::intrusive_ptr_add_ref(TextureAtlas * p);
    friend void boost::intrusive_ptr_release(TextureAtlas * p);

  protected:
         enum CurrentTextureAtlas 
         {
             TEXTURE_ATLAS_PING,
         TEXTURE_ATLAS_PONG
     };

     Ogre::String mTextureAtlasName;

         Ogre::Texture *mTextureAtlasPong;
        
         Ogre::SceneNode *mTextureAtlasSceneNode;

     std::vector<TexturePtr> mTextureList;

         unsigned int mCurrentTextureAtlas;

         bool mFirstUpdate;

  public:

    TextureAtlas();

    virtual ~TextureAtlas();

        void debug();

        void create(Ogre::String fileName, unsigned int width, unsigned int height, Ogre::PixelFormat pixelFormat, Ogre::Camera *camera, Ogre::ColourValue backgroundColour);

        void update();

        unsigned int getReference();

        void setTextureAtlasSceneNode(Ogre::SceneNode *textureAtlasSceneNode);

        Ogre::SceneNode* getTextureAtlasSceneNode();

        void save(Ogre::String folderName, Ogre::String filename, Ogre::PixelFormat pixelFormat);

        void addTexture(TexturePtr texture);

        TexturePtr getTexture(unsigned int iTexture);

        void removeTexture(unsigned int iTexture);

    void setTextureAtlasName(Ogre::String textureAtlasName);

    Ogre::String getTextureAtlasName();

        unsigned int getNumTextures();

};

// class specific addref/release implementation
// the two function overloads must be in the boost namespace on most compilers:
namespace boost
{
 inline void intrusive_ptr_add_ref(TextureAtlas * p)
  {
    // increment reference count of object *p
    ++(p->references);
  }



 inline void intrusive_ptr_release(TextureAtlas * p)
  {
   // decrement reference count, and delete object when reference count reaches 0
   if (--(p->references) == 0)
     delete p;
  } 
} // namespace boost

typedef ::boost::intrusive_ptr<TextureAtlas> TextureAtlasPtr;

}
#endif