mirror of
https://port.numenaute.org/aleajactaest/khanat-opennel-code.git
synced 2024-12-24 09:58:46 +00:00
139 lines
4.1 KiB
C++
139 lines
4.1 KiB
C++
// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
|
|
// Copyright (C) 2010 Winch Gate Property Limited
|
|
//
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Affero General Public License as
|
|
// published by the Free Software Foundation, either version 3 of the
|
|
// License, or (at your option) any later version.
|
|
//
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Affero General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Affero General Public License
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
#ifndef NL_MESH_BLOCK_MANAGER_H
|
|
#define NL_MESH_BLOCK_MANAGER_H
|
|
|
|
#include "nel/misc/types_nl.h"
|
|
#include "nel/3d/mesh_geom.h"
|
|
#include "nel/3d/vertex_buffer_heap.h"
|
|
|
|
|
|
namespace NL3D
|
|
{
|
|
|
|
|
|
class CMeshBaseInstance;
|
|
class IDriver;
|
|
class CScene;
|
|
class CRenderTrav;
|
|
|
|
// ***************************************************************************
|
|
/**
|
|
* A class used to render instances sorted by MeshGeom first, then per material, where possible.
|
|
* This allow optimisation because less renderState swapping are needed.
|
|
* WARNING: if you add MeshGeom to 2 different CMeshBlockManager at same times, it won't work, and will
|
|
* certainly crashes (not checked/assert).
|
|
*
|
|
* NB VBHeap part works, even if no User interface use it. It don't give greate performance Add, but will may be used.
|
|
*
|
|
* \author Lionel Berenguier
|
|
* \author Nevrax France
|
|
* \date 2002
|
|
*/
|
|
class CMeshBlockManager
|
|
{
|
|
public:
|
|
|
|
/// Constructor
|
|
CMeshBlockManager();
|
|
~CMeshBlockManager();
|
|
|
|
/** Add an instance of a MeshGeom to render. Only CMeshBaseInstance can be added.
|
|
* For now, only CMeshGeom and CMeshMRMGeom are known to work.
|
|
*/
|
|
void addInstance(IMeshGeom *meshGeom, CMeshBaseInstance *inst, float polygonCount);
|
|
|
|
/** Flush the manager and effectively render.
|
|
*/
|
|
void flush(IDriver *drv, CScene *scene, CRenderTrav *renderTrav);
|
|
|
|
|
|
/// \name VBHeap part.
|
|
// @{
|
|
|
|
/// release all Heaps => clear memory of meshs registered.
|
|
void releaseVBHeaps();
|
|
|
|
/** Add a Heap for a given vertexFormat. Any meshGeom added with addInstance() which has this vertex Format
|
|
* may fit in this heap.
|
|
* return false and fail if the heap can't be allocated or if the heap with same vertexFormat still exist.
|
|
*/
|
|
bool addVBHeap(IDriver *drv, uint vertexFormat, uint maxVertices);
|
|
|
|
/// Called by ~IMeshGeom()
|
|
void freeMeshVBHeap(IMeshGeom *mesh);
|
|
|
|
// @}
|
|
|
|
// ************************
|
|
private:
|
|
|
|
// An instance information.
|
|
struct CInstanceInfo
|
|
{
|
|
IMeshGeom *MeshGeom;
|
|
CMeshBaseInstance *MBI;
|
|
float PolygonCount;
|
|
// Next instance to render in the list. -1 if end of list.
|
|
sint32 NextInstance;
|
|
};
|
|
|
|
// A VBHeap information.
|
|
struct CVBHeapBlock
|
|
{
|
|
/// List of instances. small realloc are performed, since same vector used each frame.
|
|
std::vector<CInstanceInfo> RdrInstances;
|
|
|
|
/// List of MeshGeom. small realloc are performed, since same vector used each frame.
|
|
std::vector<IMeshGeom*> RdrMeshGeoms;
|
|
|
|
#if 0 // todo hulud remove / restore VBHeap
|
|
/// The actual VertexBufferHeap
|
|
CVertexBufferHeap VBHeap;
|
|
#endif // todo hulud remove / restore VBHeap
|
|
/// List of MeshGeom to clear VBHeap info.
|
|
std::vector<IMeshGeom*> AllocatedMeshGeoms;
|
|
/// List of Id free in AllocatedMeshGeoms
|
|
std::vector<uint> FreeIds;
|
|
};
|
|
|
|
/// Heap Map from vertexFormat to VBHeap Id. NB: do not contains 0th.
|
|
typedef std::map<uint, uint> TVBHeapMap;
|
|
TVBHeapMap _VBHeapMap;
|
|
|
|
/** List of Heaps.
|
|
* NB: 0th heap is special: contains all meshs which can't fit in any VBHeap.
|
|
*/
|
|
std::vector<CVBHeapBlock*> _VBHeapBlocks;
|
|
|
|
/// Try to allocate a MeshGeom into a specific Heap.
|
|
void allocateMeshVBHeap(IMeshGeom *mesh);
|
|
|
|
// render all instance of this meshGeoms, sorting by material, VP etc....
|
|
void render(CVBHeapBlock *hb, IMeshGeom *meshGeom, std::vector<CInstanceInfo> &rdrInstances);
|
|
|
|
// current flush setup
|
|
CMeshGeomRenderContext _RenderCtx;
|
|
};
|
|
|
|
|
|
} // NL3D
|
|
|
|
|
|
#endif // NL_MESH_BLOCK_MANAGER_H
|
|
|
|
/* End of mesh_block_manager.h */
|