bezierPatchMesh.h

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/*
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/*
*/
 
#ifndef _BEZIERPATCHMESH_H
#define _BEZIERPATCHMESH_H
 
#include <GL/gl.h>
#include "bezierPatch.h"
 
typedef struct bezierPatchMesh{
  bezierPatch *bpatch; /*vertex*/
  bezierPatch *bpatch_normal; 
  bezierPatch *bpatch_texcoord; /*s,t,r,q*/
  bezierPatch *bpatch_color; /*RGBA*/
 
  float *UVarray; /*all UV components of all vertices of all strips*/
  int   *length_array; /*[i] is the number of vertices in the ith strip*/
  GLenum *type_array;  /*[i] is the type of the ith primitive*/
 
  /*to support dynamic insertion*/
  int size_UVarray;
  int index_UVarray;
  int size_length_array;
  int index_length_array;
  
  int counter; /*track the current strip size*/
  GLenum type; /*track the current type: 0: GL_TRIANGLES, 1: GL_TRIANGLE_STRIP*/
  
  /*we eventually want to evaluate from (u,v) to (x,y,z) and draw them*/
  float *vertex_array; /*each vertex contains three components*/
  float *normal_array; /*each normal contains three components*/
  float *color_array;
  float *texcoord_array;
 
  /*in case we need a linked list*/
  struct bezierPatchMesh *next;
} bezierPatchMesh;
 
#ifdef __cplusplus
extern "C" {
#endif
 
 
 
bezierPatchMesh *bezierPatchMeshMake(int maptype, float umin, float umax, int ustride, int uorder, float vmin, float vmax, int vstride, int vorder, float *ctlpoints,  int size_UVarray, int size_length_array);
 
/*initilize patches to be null*/
bezierPatchMesh *bezierPatchMeshMake2(int size_UVarray, int size_length_array);
 
void bezierPatchMeshPutPatch(bezierPatchMesh *bpm, int maptype, float umin, float umax, int ustride, int uorder, float vmin, float vmax, int vstride, int vorder, float *ctlpoints);
 
void bezierPatchMeshDelete(bezierPatchMesh *bpm);
 
void bezierPatchMeshBeginStrip(bezierPatchMesh *bpm, GLenum type);
 
void bezierPatchMeshEndStrip(bezierPatchMesh *bpm);
 
void bezierPatchMeshInsertUV(bezierPatchMesh *bpm, float u, float v);
 
void bezierPatchMeshPrint(bezierPatchMesh *bpm);
 
bezierPatchMesh* bezierPatchMeshListInsert(bezierPatchMesh* list, bezierPatchMesh* bpm);
 
void bezierPatchMeshListPrint(bezierPatchMesh* list);
 
int bezierPatchMeshListTotalStrips(bezierPatchMesh* list);
 
int bezierPatchMeshListTotalVert(bezierPatchMesh* list);
int bezierPatchMeshNumTriangles(bezierPatchMesh* bpm);
int bezierPatchMeshListNumTriangles(bezierPatchMesh* list);
 
void bezierPatchMeshDelDeg(bezierPatchMesh* bpm);
 
 
void bezierPatchMeshEval(bezierPatchMesh* bpm);
  
void bezierPatchMeshDraw(bezierPatchMesh* bpm);
 
void bezierPatchMeshListDraw(bezierPatchMesh* list);
void bezierPatchMeshListEval(bezierPatchMesh* list);
void bezierPatchMeshListCollect(bezierPatchMesh* list, float **vertex_array, float **normal_array, int **length_array, GLenum **type_array, int *num_strips);
 
void bezierPatchMeshListDelDeg(bezierPatchMesh* list);
void bezierPatchMeshListDelete(bezierPatchMesh *list);
bezierPatchMesh* bezierPatchMeshListReverse(bezierPatchMesh* list);
void drawStrips(float *vertex_array, float *normal_array, int *length_array, GLenum *type_array, int num_strips);
 
#ifdef __cplusplus
}
#endif
 
#endif