pol2d.h Source File

00001 /*
00002     Copyright (C) 1998-2001 by Jorrit Tyberghein
00003 
00004     This library is free software; you can redistribute it and/or
00005     modify it under the terms of the GNU Library General Public
00006     License as published by the Free Software Foundation; either
00007     version 2 of the License, or (at your option) any later version.
00008 
00009     This library is distributed in the hope that it will be useful,
00010     but WITHOUT ANY WARRANTY; without even the implied warranty of
00011     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012     Library General Public License for more details.
00013 
00014     You should have received a copy of the GNU Library General Public
00015     License along with this library; if not, write to the Free
00016     Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
00017 */
00018 
00019 #ifndef __CS_POL2D_H__
00020 #define __CS_POL2D_H__
00021 
00022 #include "csutil/scf.h"
00023 #include "csgeom/math2d.h"
00024 #include "csgeom/math3d.h"
00025 #include "csgeom/poly2d.h"
00026 #include "ivideo/graph3d.h"
00027 
00028 class csPolygon3D;
00029 class csPolyPlane;
00030 struct iRenderView;
00031 struct iGraphics2D;
00032 struct iGraphics3D;
00033 
00041 class csPolygon2D : public csPoly2D
00042 {
00043 public:
00047   void AddPerspective (const csVector3& v);
00048 
00054   void AddPerspectiveUnit (const csVector3& v);
00055 
00061   void AddPerspectiveAspect (const csVector3& v, float ratio, float shift);
00062 
00066   void Draw (iGraphics2D* g2d, int col);
00067 
00074   void DrawFilled (iRenderView* rview, csPolygon3D* poly, csPolyPlane* plane,
00075         csZBufMode zbufMode = CS_ZBUF_FILL);
00076 
00081   void FillZBuf (iRenderView* rview, csPolygon3D* poly, csPolyPlane* plane);
00082 
00087   void AddFogPolygon (iGraphics3D* g3d, csPolygon3D* poly, csPolyPlane* plane,
00088         bool mirror, CS_ID id, int fog_type);
00089 };
00090 
00094 class csPolygon2DFactory : public csPoly2DFactory
00095 {
00096 public:
00098   CS_DECLARE_STATIC_CLASSVAR(sharedFactory,SharedFactory,csPolygon2DFactory)
00099 
00101   virtual csPoly2D* Create () { csPolygon2D* p = new csPolygon2D (); return (csPoly2D*)p; }
00102 };
00103 
00104 
00105 struct G3DPolygonDPFX;
00106 struct csVertexStatus;
00107 
00112 extern void PreparePolygonFX (G3DPolygonDPFX* g3dpoly, csVector2* clipped_poly,
00113   int num_vertices, csVector2 *orig_triangle, bool gouraud);
00114 extern void PreparePolygonFX2 (G3DPolygonDPFX* g3dpoly, csVector2* clipped_poly,
00115   int num_vertices, csVertexStatus* clipped_vtstats,
00116   int orig_num_vertices, bool gouraud);
00117 
00118 /*
00119  * An element for the queue.
00120  */
00121 struct csQueueElement
00122 {
00123   csPolygon3D* poly3d;
00124   csPolygon2D* poly2d;
00125 };
00126 
00137 class csPolygon2DQueue
00138 {
00139 private:
00140   // The queue.
00141   csQueueElement* queue;
00142 
00143   // Maximum number of elements in the queue.
00144   int max_queue;
00145 
00146   // Current number of elements in the queue.
00147   int num_queue;
00148 
00149 public:
00151   csPolygon2DQueue (int max_size);
00152 
00154   ~csPolygon2DQueue ();
00155 
00157   void Push (csPolygon3D* poly3d, csPolygon2D* poly2d);
00158 
00163   bool Pop (csPolygon3D** poly3d, csPolygon2D** poly2d);
00164 };
00165 
00166 
00167 #endif // __CS_POL2D_H__