OSDLOverlay.h

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#ifndef OSDL_OVERLAY_H_
#define OSDL_OVERLAY_H_


#include "OSDLVideoTypes.h"      // for VideoException

#include "Ceylan.h"              // for inheritance

#include <string>


// Forward declaration.
struct SDL_Overlay ;


namespace OSDL
{


    namespace Video
    {
    
    
    
        class OSDL_DLL OverlayException : public VideoException
        {
        
            public:
            
                OverlayException( const std::string & message ) throw() ;       
                virtual ~OverlayException() throw() ;
            
        } ;
    
    
    
        class OSDL_DLL Overlay : public Ceylan::Lockable
        {
        
        
            public:
            
            
                enum EncodingFormat { YV12, IYUV, YUY2,UYVY, YVYU } ;
            
            
                Overlay( Length width, Length height, EncodingFormat format ) 
                    throw( OverlayException ) ;
                
            
                virtual ~Overlay() throw() ;
            

                virtual void blit( Coordinate x, Coordinate y ) const 
                    throw( OverlayException ) ;         
            
            
                virtual void blit() const throw( OverlayException ) ;

                    
                 virtual bool mustBeLocked() const throw() ;
        
    
            
                virtual const std::string toString( 
                        Ceylan::VerbosityLevels level = Ceylan::high ) 
                    const throw() ;


            
            protected:
            
            
                virtual void preUnlock() throw() ;
                
                
                virtual void postLock() throw() ;
            
            
                SDL_Overlay * _overlay ;
            
            
                Length _width ;

                
                Length _height ;
                
                
                
            
            private:
        
        
                Overlay( const Overlay & source ) throw() ;
            
            
                Overlay & operator = ( const Overlay & source ) throw() ;
                
        
        
        
        } ; 
    
    
    }


}



#endif // OSDL_OVERLAY_H_

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