iengine/viscull.h

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00001 /*
00002     Crystal Space 3D engine
00003     Copyright (C) 2001 by Jorrit Tyberghein
00004 
00005     This library is free software; you can redistribute it and/or
00006     modify it under the terms of the GNU Library General Public
00007     License as published by the Free Software Foundation; either
00008     version 2 of the License, or (at your option) any later version.
00009 
00010     This library is distributed in the hope that it will be useful,
00011     but WITHOUT ANY WARRANTY; without even the implied warranty of
00012     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013     Library General Public License for more details.
00014 
00015     You should have received a copy of the GNU Library General Public
00016     License along with this library; if not, write to the Free
00017     Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
00018 */
00019 
00020 #ifndef __CS_IENGINE_VISCULL_H__
00021 #define __CS_IENGINE_VISCULL_H__
00022 
00030 #include "csutil/scf_interface.h"
00031 
00032 struct iDocumentNode;
00033 struct iFrustumView;
00034 struct iMeshWrapper;
00035 struct iMovable;
00036 struct iObjectModel;
00037 struct iRenderView;
00038 struct iVisibilityObject;
00039 
00040 class csBox3;
00041 class csFlags;
00042 class csPlane3;
00043 class csSphere;
00044 class csVector3;
00045 
00049 struct iVisibilityObjectIterator : public virtual iBase
00050 {
00051   SCF_INTERFACE (iVisibilityObjectIterator, 2, 0, 0);
00053   virtual bool HasNext () const = 0;
00054 
00056   virtual iVisibilityObject* Next () = 0;
00057 
00059   virtual void Reset () = 0;
00060 };
00061 
00062 
00070 struct iVisibilityCullerListener : public virtual iBase
00071 {
00072   SCF_INTERFACE(iVisibilityCullerListener, 2,0,0);
00080   virtual void ObjectVisible (iVisibilityObject *visobject, 
00081     iMeshWrapper *mesh, uint32 frustum_mask) = 0;
00082 };
00083 
00101 struct iVisibilityCuller : public virtual iBase
00102 {
00103   SCF_INTERFACE (iVisibilityCuller, 2, 0, 0);
00104 
00110   virtual void Setup (const char* name) = 0;
00118   virtual void RegisterVisObject (iVisibilityObject* visobj) = 0;
00120   virtual void UnregisterVisObject (iVisibilityObject* visobj) = 0;
00127   virtual bool VisTest (iRenderView* irview, 
00128     iVisibilityCullerListener* viscallback) = 0;
00135   virtual void PrecacheCulling () = 0;
00136 
00141   virtual csPtr<iVisibilityObjectIterator> VisTest (const csBox3& box) = 0;
00142 
00147   virtual csPtr<iVisibilityObjectIterator> VisTest (const csSphere& sphere) = 0;
00152   virtual void VisTest (const csSphere& sphere, 
00153     iVisibilityCullerListener* viscallback) = 0;
00154 
00160   virtual csPtr<iVisibilityObjectIterator> VisTest (csPlane3* plane,
00161         int num_planes) = 0;
00162 
00169   virtual void VisTest (csPlane3* plane, int num_planes, 
00170     iVisibilityCullerListener* viscallback) = 0;
00171 
00178   virtual csPtr<iVisibilityObjectIterator> IntersectSegmentSloppy (
00179     const csVector3& start, const csVector3& end) = 0;
00180 
00186   virtual csPtr<iVisibilityObjectIterator> IntersectSegment (
00187     const csVector3& start, const csVector3& end, bool accurate = false) = 0;
00188 
00198   virtual bool IntersectSegment (const csVector3& start,
00199     const csVector3& end, csVector3& isect, float* pr = 0,
00200     iMeshWrapper** p_mesh = 0, int* poly_idx = 0,
00201     bool accurate = true) = 0;
00202 
00213   virtual void CastShadows (iFrustumView* fview) = 0;
00214 
00219   virtual const char* ParseCullerParameters (iDocumentNode* node) = 0;
00220 };
00221 
00229 #define CS_CULLER_HINT_GOODOCCLUDER 4
00230 
00235 #define CS_CULLER_HINT_BADOCCLUDER 8
00236 
00252 struct iVisibilityObject : public virtual iBase
00253 {
00254   SCF_INTERFACE(iVisibilityObject, 2, 0, 0);
00255 
00257   virtual iMovable* GetMovable () const = 0;
00259   virtual iMeshWrapper* GetMeshWrapper () const = 0;
00260 
00264   virtual iObjectModel* GetObjectModel () = 0;
00265 
00272   virtual csFlags& GetCullerFlags () = 0;
00273 };
00274 
00277 #endif // __CS_IENGINE_VISCULL_H__
00278
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iengine/viscull.h
