/*
 * ***** BEGIN GPL LICENSE BLOCK *****
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * ***** END GPL LICENSE BLOCK *****
 */

#ifndef __CCGSUBSURF_H__
#define __CCGSUBSURF_H__

/** \file blender/blenkernel/intern/CCGSubSurf.h
 *  \ingroup bke
 */

typedef void* CCGMeshHDL;
typedef void* CCGVertHDL;
typedef void* CCGEdgeHDL;
typedef void* CCGFaceHDL;

typedef struct CCGSubSurf CCGSubSurf;
typedef struct CCGVert CCGVert;
typedef struct CCGEdge CCGEdge;
typedef struct CCGFace CCGFace;

typedef struct CCGMeshIFC {
	int			vertUserSize, edgeUserSize, faceUserSize;
	int			numLayers;
	int			vertDataSize;
	int			simpleSubdiv;
} CCGMeshIFC;

/***/

typedef void* CCGAllocatorHDL;

typedef struct CCGAllocatorIFC {
	void*		(*alloc)			(CCGAllocatorHDL a, int numBytes);
	void*		(*realloc)			(CCGAllocatorHDL a, void *ptr, int newSize, int oldSize);
	void		(*free)				(CCGAllocatorHDL a, void *ptr);
	void		(*release)			(CCGAllocatorHDL a);
} CCGAllocatorIFC;

/***/

typedef enum {
	eCCGError_None = 0,

	eCCGError_InvalidSyncState,
	eCCGError_InvalidValue,
} CCGError;

/***/

#define CCG_OMP_LIMIT	1000000

/***/

CCGSubSurf*	ccgSubSurf_new	(CCGMeshIFC *ifc, int subdivisionLevels, CCGAllocatorIFC *allocatorIFC, CCGAllocatorHDL allocator);
void		ccgSubSurf_free	(CCGSubSurf *ss);

CCGError	ccgSubSurf_initFullSync		(CCGSubSurf *ss);
CCGError	ccgSubSurf_initPartialSync	(CCGSubSurf *ss);

CCGError	ccgSubSurf_syncVert		(CCGSubSurf *ss, CCGVertHDL vHDL, const void *vertData, int seam, CCGVert **v_r);
CCGError	ccgSubSurf_syncEdge		(CCGSubSurf *ss, CCGEdgeHDL eHDL, CCGVertHDL e_vHDL0, CCGVertHDL e_vHDL1, float crease, CCGEdge **e_r);
CCGError	ccgSubSurf_syncFace		(CCGSubSurf *ss, CCGFaceHDL fHDL, int numVerts, CCGVertHDL *vHDLs, CCGFace **f_r);

CCGError	ccgSubSurf_syncVertDel	(CCGSubSurf *ss, CCGVertHDL vHDL);
CCGError	ccgSubSurf_syncEdgeDel	(CCGSubSurf *ss, CCGEdgeHDL eHDL);
CCGError	ccgSubSurf_syncFaceDel	(CCGSubSurf *ss, CCGFaceHDL fHDL);

CCGError	ccgSubSurf_processSync	(CCGSubSurf *ss);

CCGError	ccgSubSurf_updateFromFaces(CCGSubSurf *ss, int lvl, CCGFace **faces, int numFaces);
CCGError	ccgSubSurf_updateToFaces(CCGSubSurf *ss, int lvl, CCGFace **faces, int numFaces);
CCGError	ccgSubSurf_updateNormals(CCGSubSurf *ss, CCGFace **faces, int numFaces);
CCGError	ccgSubSurf_updateLevels(CCGSubSurf *ss, int lvl, CCGFace **faces, int numFaces);
CCGError	ccgSubSurf_stitchFaces(CCGSubSurf *ss, int lvl, CCGFace **faces, int numFaces);

CCGError	ccgSubSurf_setSubdivisionLevels		(CCGSubSurf *ss, int subdivisionLevels);

CCGError	ccgSubSurf_setAllowEdgeCreation		(CCGSubSurf *ss, int allowEdgeCreation, float defaultCreaseValue, void *defaultUserData);
void		ccgSubSurf_getAllowEdgeCreation		(CCGSubSurf *ss, int *allowEdgeCreation_r, float *defaultCreaseValue_r, void *defaultUserData_r);

void		ccgSubSurf_getUseAgeCounts			(CCGSubSurf *ss, int *useAgeCounts_r, int *vertUserOffset_r, int *edgeUserOffset_r, int *faceUserOffset_r);
CCGError	ccgSubSurf_setUseAgeCounts			(CCGSubSurf *ss, int useAgeCounts, int vertUserOffset, int edgeUserOffset, int faceUserOffset);

CCGError	ccgSubSurf_setCalcVertexNormals		(CCGSubSurf *ss, int useVertNormals, int normalDataOffset);
void		ccgSubSurf_setAllocMask				(CCGSubSurf *ss, int allocMask, int maskOffset);

void		ccgSubSurf_setNumLayers				(CCGSubSurf *ss, int numLayers);

/***/

int			ccgSubSurf_getNumVerts				(const CCGSubSurf *ss);
int			ccgSubSurf_getNumEdges				(const CCGSubSurf *ss);
int			ccgSubSurf_getNumFaces				(const CCGSubSurf *ss);

int			ccgSubSurf_getSubdivisionLevels		(const CCGSubSurf *ss);
int			ccgSubSurf_getEdgeSize				(const CCGSubSurf *ss);
int			ccgSubSurf_getEdgeLevelSize			(const CCGSubSurf *ss, int level);
int			ccgSubSurf_getGridSize				(const CCGSubSurf *ss);
int			ccgSubSurf_getGridLevelSize			(const CCGSubSurf *ss, int level);
int			ccgSubSurf_getSimpleSubdiv			(const CCGSubSurf *ss);

CCGVert*	ccgSubSurf_getVert					(CCGSubSurf *ss, CCGVertHDL v);
CCGVertHDL	ccgSubSurf_getVertVertHandle		(CCGVert *v);
int			ccgSubSurf_getVertNumFaces			(CCGVert *v);
CCGFace*	ccgSubSurf_getVertFace				(CCGVert *v, int index);
int			ccgSubSurf_getVertNumEdges			(CCGVert *v);
CCGEdge*	ccgSubSurf_getVertEdge				(CCGVert *v, int index);

int			ccgSubSurf_getVertAge				(CCGSubSurf *ss, CCGVert *v);
void*		ccgSubSurf_getVertUserData			(CCGSubSurf *ss, CCGVert *v);
void*		ccgSubSurf_getVertData				(CCGSubSurf *ss, CCGVert *v);
void*		ccgSubSurf_getVertLevelData			(CCGSubSurf *ss, CCGVert *v, int level);

CCGEdge*	ccgSubSurf_getEdge					(CCGSubSurf *ss, CCGEdgeHDL e);
CCGEdgeHDL	ccgSubSurf_getEdgeEdgeHandle		(CCGEdge *e);
int			ccgSubSurf_getEdgeNumFaces			(CCGEdge *e);
CCGFace*	ccgSubSurf_getEdgeFace				(CCGEdge *e, int index);
CCGVert*	ccgSubSurf_getEdgeVert0				(CCGEdge *e);
CCGVert*	ccgSubSurf_getEdgeVert1				(CCGEdge *e);
float		ccgSubSurf_getEdgeCrease			(CCGEdge *e);

int			ccgSubSurf_getEdgeAge				(CCGSubSurf *ss, CCGEdge *e);
void*		ccgSubSurf_getEdgeUserData			(CCGSubSurf *ss, CCGEdge *e);
void*		ccgSubSurf_getEdgeDataArray			(CCGSubSurf *ss, CCGEdge *e);
void*		ccgSubSurf_getEdgeData				(CCGSubSurf *ss, CCGEdge *e, int x);
void*		ccgSubSurf_getEdgeLevelData			(CCGSubSurf *ss, CCGEdge *e, int x, int level);

CCGFace*	ccgSubSurf_getFace					(CCGSubSurf *ss, CCGFaceHDL f);
CCGFaceHDL	ccgSubSurf_getFaceFaceHandle		(CCGFace *f);
int			ccgSubSurf_getFaceNumVerts			(CCGFace *f);
CCGVert*	ccgSubSurf_getFaceVert				(CCGFace *f, int index);
CCGEdge*	ccgSubSurf_getFaceEdge				(CCGFace *f, int index);
int			ccgSubSurf_getFaceEdgeIndex			(CCGFace *f, CCGEdge *e);

int			ccgSubSurf_getFaceAge				(CCGSubSurf *ss, CCGFace *f);
void*		ccgSubSurf_getFaceUserData			(CCGSubSurf *ss, CCGFace *f);
void*		ccgSubSurf_getFaceCenterData		(CCGFace *f);
void*		ccgSubSurf_getFaceGridEdgeDataArray	(CCGSubSurf *ss, CCGFace *f, int gridIndex);
void*		ccgSubSurf_getFaceGridEdgeData		(CCGSubSurf *ss, CCGFace *f, int gridIndex, int x);
void*		ccgSubSurf_getFaceGridDataArray		(CCGSubSurf *ss, CCGFace *f, int gridIndex);
void*		ccgSubSurf_getFaceGridData			(CCGSubSurf *ss, CCGFace *f, int gridIndex, int x, int y);

int			ccgSubSurf_getNumFinalVerts		(const CCGSubSurf *ss);
int			ccgSubSurf_getNumFinalEdges		(const CCGSubSurf *ss);
int			ccgSubSurf_getNumFinalFaces		(const CCGSubSurf *ss);

/***/

typedef struct CCGVertIterator CCGVertIterator;
typedef struct CCGEdgeIterator CCGEdgeIterator;
typedef struct CCGFaceIterator CCGFaceIterator;

CCGVertIterator*	ccgSubSurf_getVertIterator	(CCGSubSurf *ss);
CCGEdgeIterator*	ccgSubSurf_getEdgeIterator	(CCGSubSurf *ss);
CCGFaceIterator*	ccgSubSurf_getFaceIterator	(CCGSubSurf *ss);

CCGVert*			ccgVertIterator_getCurrent	(CCGVertIterator *vi);
int					ccgVertIterator_isStopped	(CCGVertIterator *vi);
void				ccgVertIterator_next		(CCGVertIterator *vi);
void				ccgVertIterator_free		(CCGVertIterator *vi);

CCGEdge*			ccgEdgeIterator_getCurrent	(CCGEdgeIterator *ei);
int					ccgEdgeIterator_isStopped	(CCGEdgeIterator *ei);
void				ccgEdgeIterator_next		(CCGEdgeIterator *ei);
void				ccgEdgeIterator_free		(CCGEdgeIterator *ei);

CCGFace*			ccgFaceIterator_getCurrent	(CCGFaceIterator *fi);
int					ccgFaceIterator_isStopped	(CCGFaceIterator *fi);
void				ccgFaceIterator_next		(CCGFaceIterator *fi);
void				ccgFaceIterator_free		(CCGFaceIterator *fi);

#endif  /* __CCGSUBSURF_H__ */