xref: /trunk/main/canvas/source/directx/dx_rendermodule.hxx (revision 67e470da)

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 * Licensed to the Apache Software Foundation (ASF) under one
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 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
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#ifndef _DXCANVAS_RENDERMODULE_HXX
#define _DXCANVAS_RENDERMODULE_HXX

#include <basegfx/vector/b2ivector.hxx>
#include <basegfx/range/b2irectangle.hxx>
#include <canvas/rendering/irendermodule.hxx>
#include <boost/shared_ptr.hpp>
#include "dx_winstuff.hxx"

class Window;
namespace basegfx
{
    class B2IRange;
    class B2DVector;
}

namespace dxcanvas
{
    /// Specialization of IRenderModule for DirectX
    struct IDXRenderModule : public canvas::IRenderModule
    {
		/** Flip front- and backbuffer, update only given area

			Note: Both update area and offset are ignored for
			fullscreen canvas, that uses page flipping (cannot, by
			definition, do anything else there except displaying the
			full backbuffer instead of the front buffer)

            @param rUpdateArea
            Area to copy from backbuffer to front

            @param rCurrWindowArea
            Current area of VCL window (coordinates relative to VCL
            HWND)
         */
        virtual bool flip( const ::basegfx::B2IRectangle& rUpdateArea,
						   const ::basegfx::B2IRectangle& rCurrWindowArea ) = 0;

        /** Resize backbuffer area for this render module
         */
        virtual void resize( const ::basegfx::B2IRange& rect ) = 0;

        /// Write a snapshot of the screen to disk
        virtual void screenShot() = 0;

		virtual COMReference<surface_type>
			createSystemMemorySurface(
				const ::basegfx::B2IVector& rSize ) = 0;

		virtual void disposing() = 0;
		virtual HWND getHWND() const = 0;
    };

    typedef ::boost::shared_ptr< IDXRenderModule > IDXRenderModuleSharedPtr;


    /** Factory method, to create an IRenderModule instance for the
        given VCL window instance
     */
    IDXRenderModuleSharedPtr createRenderModule( const ::Window& rParent );
}

#endif