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2cdf0e10cSrcweir  *
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2191c99ff4SAndrew Rist 
2291c99ff4SAndrew Rist 
23cdf0e10cSrcweir 
24cdf0e10cSrcweir #ifndef INCLUDED_CANVAS_SURFACEPROXY_HXX
25cdf0e10cSrcweir #define INCLUDED_CANVAS_SURFACEPROXY_HXX
26cdf0e10cSrcweir 
27cdf0e10cSrcweir #include <canvas/rendering/isurfaceproxy.hxx>
28cdf0e10cSrcweir #include <canvas/rendering/icolorbuffer.hxx>
29cdf0e10cSrcweir 
30cdf0e10cSrcweir #include "pagemanager.hxx"
31cdf0e10cSrcweir #include "surface.hxx"
32cdf0e10cSrcweir 
33cdf0e10cSrcweir namespace canvas
34cdf0e10cSrcweir {
35cdf0e10cSrcweir 
36cdf0e10cSrcweir 	//////////////////////////////////////////////////////////////////////////////////
37cdf0e10cSrcweir 	// SurfaceProxy
38cdf0e10cSrcweir 	//////////////////////////////////////////////////////////////////////////////////
39cdf0e10cSrcweir 
40cdf0e10cSrcweir 	/** Definition of the surface proxy class.
41cdf0e10cSrcweir 
42cdf0e10cSrcweir 	    Surface proxies are the connection between *one* source image
43cdf0e10cSrcweir 	    and *one or more* hardware surfaces (or textures).  in a
44*07a3d7f1SPedro Giffuni 	    logical structure surface proxies represent solely this
45cdf0e10cSrcweir 	    dependeny plus some simple cache management.
46cdf0e10cSrcweir     */
47cdf0e10cSrcweir     class SurfaceProxy : public ISurfaceProxy
48cdf0e10cSrcweir 	{
49cdf0e10cSrcweir     public:
50cdf0e10cSrcweir 
51cdf0e10cSrcweir         SurfaceProxy( const canvas::IColorBufferSharedPtr& pBuffer,
52cdf0e10cSrcweir                       const PageManagerSharedPtr &pPageManager );
53cdf0e10cSrcweir 
54cdf0e10cSrcweir         // ISurfaceProxy interface
55cdf0e10cSrcweir         virtual void setColorBufferDirty();
56cdf0e10cSrcweir 
57cdf0e10cSrcweir         /** Render the surface content to screen.
58cdf0e10cSrcweir 
59cdf0e10cSrcweir             @param fAlpha
60cdf0e10cSrcweir             Overall alpha for content
61cdf0e10cSrcweir 
62cdf0e10cSrcweir             @param rPos
63cdf0e10cSrcweir             Output position
64cdf0e10cSrcweir 
65cdf0e10cSrcweir             @param rTransform
66cdf0e10cSrcweir             Output transformation (does not affect output position)
67cdf0e10cSrcweir         */
68cdf0e10cSrcweir         virtual bool draw( double                         fAlpha,
69cdf0e10cSrcweir                            const ::basegfx::B2DPoint&     rPos,
70cdf0e10cSrcweir                            const ::basegfx::B2DHomMatrix& rTransform );
71cdf0e10cSrcweir 
72cdf0e10cSrcweir         /** Render the surface content to screen.
73cdf0e10cSrcweir 
74cdf0e10cSrcweir             @param fAlpha
75cdf0e10cSrcweir             Overall alpha for content
76cdf0e10cSrcweir 
77cdf0e10cSrcweir             @param rPos
78cdf0e10cSrcweir             Output position
79cdf0e10cSrcweir 
80cdf0e10cSrcweir             @param rArea
81cdf0e10cSrcweir             Subset of the surface to render. Coordinate system are
82cdf0e10cSrcweir             surface area pixel, given area will be clipped to the
83cdf0e10cSrcweir             surface bounds.
84cdf0e10cSrcweir 
85cdf0e10cSrcweir             @param rTransform
86cdf0e10cSrcweir             Output transformation (does not affect output position)
87cdf0e10cSrcweir         */
88cdf0e10cSrcweir         virtual bool draw( double                         fAlpha,
89cdf0e10cSrcweir                            const ::basegfx::B2DPoint&     rPos,
90cdf0e10cSrcweir                            const ::basegfx::B2DRange&     rArea,
91cdf0e10cSrcweir                            const ::basegfx::B2DHomMatrix& rTransform );
92cdf0e10cSrcweir 
93cdf0e10cSrcweir         /** Render the surface content to screen.
94cdf0e10cSrcweir 
95cdf0e10cSrcweir             @param fAlpha
96cdf0e10cSrcweir             Overall alpha for content
97cdf0e10cSrcweir 
98cdf0e10cSrcweir             @param rPos
99cdf0e10cSrcweir             Output position
100cdf0e10cSrcweir 
101cdf0e10cSrcweir             @param rClipPoly
102cdf0e10cSrcweir             Clip polygon for the surface. The clip polygon is also
103cdf0e10cSrcweir             subject to the output transformation.
104cdf0e10cSrcweir 
105cdf0e10cSrcweir             @param rTransform
106cdf0e10cSrcweir             Output transformation (does not affect output position)
107cdf0e10cSrcweir         */
108cdf0e10cSrcweir         virtual bool draw( double                           fAlpha,
109cdf0e10cSrcweir                            const ::basegfx::B2DPoint&       rPos,
110cdf0e10cSrcweir                            const ::basegfx::B2DPolyPolygon& rClipPoly,
111cdf0e10cSrcweir                            const ::basegfx::B2DHomMatrix&   rTransform );
112cdf0e10cSrcweir 
113cdf0e10cSrcweir     private:
114cdf0e10cSrcweir         PageManagerSharedPtr          mpPageManager;
115cdf0e10cSrcweir 
116cdf0e10cSrcweir         // the pagemanager will distribute the image
117cdf0e10cSrcweir         // to one or more surfaces, this is why we
118cdf0e10cSrcweir         // need a list here.
119cdf0e10cSrcweir         std::vector<SurfaceSharedPtr> maSurfaceList;
120cdf0e10cSrcweir 
121cdf0e10cSrcweir         // pointer to the source of image data
122cdf0e10cSrcweir         // which always is stored in system memory,
123cdf0e10cSrcweir         // 32bit rgba and can have any size.
124cdf0e10cSrcweir         canvas::IColorBufferSharedPtr mpBuffer;
125cdf0e10cSrcweir 	};
126cdf0e10cSrcweir 
127cdf0e10cSrcweir     typedef ::boost::shared_ptr< SurfaceProxy > SurfaceProxySharedPtr;
128cdf0e10cSrcweir }
129cdf0e10cSrcweir 
130cdf0e10cSrcweir #endif
131